[go: up one dir, main page]

WO2006070442A1 - Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere - Google Patents

Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere Download PDF

Info

Publication number
WO2006070442A1
WO2006070442A1 PCT/JP2004/019547 JP2004019547W WO2006070442A1 WO 2006070442 A1 WO2006070442 A1 WO 2006070442A1 JP 2004019547 W JP2004019547 W JP 2004019547W WO 2006070442 A1 WO2006070442 A1 WO 2006070442A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
tank
fuel gas
gas supply
calorie
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2004/019547
Other languages
English (en)
Japanese (ja)
Inventor
Masaaki Sako
Yujiro Fujisaki
Hideaki Ota
Eiichi Harada
Masatoshi Hirokawa
Yoshiharu Nonaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to CN200480044726A priority Critical patent/CN100593633C/zh
Priority to JP2006550510A priority patent/JP4326566B2/ja
Priority to KR1020077013831A priority patent/KR100875497B1/ko
Priority to PCT/JP2004/019547 priority patent/WO2006070442A1/fr
Priority to BRPI0419147A priority patent/BRPI0419147B1/pt
Priority to TW093141289A priority patent/TWI276737B/zh
Publication of WO2006070442A1 publication Critical patent/WO2006070442A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/26—Control of fuel supply
    • F02C9/40—Control of fuel supply specially adapted to the use of a special fuel or a plurality of fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/002—Gaseous fuel
    • F23K5/007—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/01—Intermediate tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00002—Gas turbine combustors adapted for fuels having low heating value [LHV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Definitions

  • Gas calorie fluctuation suppression device fuel gas supply equipment, gas turbine equipment and boiler equipment
  • the present invention relates to a gas calorie fluctuation suppressing device, a fuel gas supply facility, a gas turbine facility, and a boiler facility. More specifically, when the calorific value of the fuel as fuel for the combustion facility fluctuates like low calorie gas, a gas calorie fluctuation suppressing device capable of suppressing this calorific value fluctuation, and this gas calorie fluctuation suppressing device are provided.
  • the present invention relates to a fuel gas supply facility, and a gas turbine facility and a boiler facility as a combustion facility equipped with a fuel gas supply facility.
  • BFG Blast Furnace Gas
  • BFG contains 2-10 g / Nm 3 of dust. After removing this to about 0. Olg / Nm with a dust remover, hot air is used as fuel gas with a calorific value of about 800 kcal / Nm 3. Used in furnaces, coke ovens, heating furnaces, boilers, etc.
  • gas turbines have also been able to burn low calorie gas due to improvements in technology, and there are an increasing number of cases where BFG is used as gas turbine fuel to generate electricity.
  • Low calorie gas is known to be a gas whose calorific value is about 12 MJ / Nm 3 or less.
  • low-calorie gas is not limited to blast furnace gas (BFG) but includes many types of gas such as coke oven gas (COG) and converter gas (LDG).
  • Patent Document 1 JP 2002-155762 A
  • Patent Document 2 JP-A-9-317499
  • the present invention has been made to solve the problem, and by suppressing the calorie fluctuation of the fuel gas such as low calorie gas supplied as fuel to the combustion facility, the fuel gas
  • This is a gas calorie fluctuation suppression device that can make dilution with inert gas easy and effective, and can also eliminate the need for dilution with an inert gas, and a fuel gas supply facility equipped with this gas calorie fluctuation suppression device
  • a gas calorie fluctuation suppression device that can make dilution with inert gas easy and effective, and can also eliminate the need for dilution with an inert gas, and a fuel gas supply facility equipped with this gas calorie fluctuation suppression device
  • gas turbine equipment and boiler equipment equipped with this fuel gas supply equipment for the purpose of providing gas turbine equipment and boiler equipment equipped with this fuel gas supply equipment!
  • the gas calorie fluctuation suppressing device of the present invention includes:
  • the tank has a gas outlet formed separately from the gas inlet for allowing the fuel gas to flow from the tank to the fuel gas supply passage.
  • Fuel gas supplied from time to time through the fuel gas supply passage is temporarily stored in the tank, and is mixed in a time difference manner therein. Therefore, even if the calorific value of this fuel gas is fluctuating as in the case of fuel gas, by mixing the time difference, the width of the caloric fluctuation is reduced and the calorie fluctuation speed is reduced. The As a result, it becomes easy and effective to adjust the calorie fluctuation of the fuel gas within the allowable fluctuation range of the gas characteristics of the combustion facility with the dilution gas. In addition, depending on the average caloric value of the fuel gas, it is possible to make it unnecessary to dilute. Note that the time difference mixing means that the gas flowing into the tank continuously with a time delay is mixed with the gas that has already flowed and stayed.
  • connection to the gas inlet is not limited to the upstream side of the fuel gas supply passage, and the connection to the gas outlet is not limited to the downstream side of the fuel gas supply passage.
  • bypass passage When a bypass passage is provided in the fuel gas supply passage as shown in Fig. 26 and a tank is installed in this bypass passage, the downstream side of the bypass passage is connected to the gas inlet of the tank, and the upstream side is connected to the gas outlet.
  • means for pumping fuel gas to the tank is provided in the downstream bypass passage.
  • the tank structure is not limited.
  • a fixed-shaped tank whose volume does not change
  • it may also be an internal volume variation type tank used as a device (gas holder) for monitoring the gas supply-demand balance in conventional gas turbine equipment.
  • the internal volume variation type tank is a tank with a lid member that is airtightly mounted that can move up and down according to the tank internal pressure, and the balance effect can be maximized by positively moving the lid member up and down by the drive unit.
  • the gas inlet is configured to flow the fuel gas into the tank in a direction inclined upward or downward from the horizontal. This is because time difference mixing is effectively performed.
  • the gas inflow direction in order to incline the gas inflow direction as described above, it includes an inclined pipe member formed continuously in the fuel gas supply passage communicated with the gas inlet, and the inclined pipe member is upward or downward from the horizontal. It can be set as the structure which inclines to.
  • the fixed louver includes at least one sheet having a fixed inclination angle.
  • the gas inflow direction can also be inclined by using Luno.
  • housing is provided as a part of the fuel gas supply passage connected to the gas inlet. It may be installed inside. Also, for example, it can be installed inside the tank close to the gas inlet.
  • a gas calorie fluctuation suppressing device including a gas inflow device installed at the gas inlet and configured to be able to change the inflow angle of the fuel gas into the gas inflow device force tank is preferable.
  • the gas inflow device includes a variable louver disposed in one of the fuel gas supply passage and the tank in the vicinity of the gas inlet,
  • This variable louver can be composed of at least one Luno-slidably mounted so that its inclination angle can be changed by an external force.
  • variable louver is provided in the fuel gas supply passage or in the tank near the gas inlet.
  • the same method as the above-described method of installing the fixed louver can be applied.
  • a gas calorie fluctuation suppressing device configured such that a plurality of the gas inlets are formed and a gas inlet through which the fuel gas flows into the tank can be selected and switched among the gas inlets is preferable. This is because, for example, the time difference mixing of the gas in the tank can be promoted by periodically switching the gas inlet through which the gas flows.
  • a gas outlet through which fuel gas flows out of the tank can be selected and switched in synchronization with the switching of the gas inlet. It can be configured.
  • the powerful gas calorie fluctuation suppressing device can be configured such that the inflow directions of the fuel gas into the tanks of the plurality of gas inlets are different from each other.
  • a plurality of the gas inlets are formed, including a flow rate adjusting device installed in a fuel gas supply passage communicating with each gas inlet, and the flow rate of the gas flowing through each fuel gas supply passage is controlled.
  • the gas calorie fluctuation suppressing device is preferably configured so that it can be changed. For example, gas mixing in the tank can be facilitated by periodically switching the gas flow rate through each gas inlet.
  • a flow rate adjusting valve may be employed as the flow rate adjusting device.
  • a gas calorie fluctuation suppressing device including an inert gas supply passage connected to the tank for flowing an inert gas into the tank is preferred. This is because the fuel gas and the inert gas are mixed in the tank with a time difference.
  • An inert gas supply passage connected so as to be inserted into a fuel gas supply passage communicated with the gas inlet is included, and an outlet end of the inert gas supply passage is the gas outlet.
  • a gas calorie fluctuation suppressing device is preferred, located upstream from the entrance. This is because mixing of fuel gas and inert gas is promoted.
  • a gas calorie fluctuation suppressing device in which the inert gas is a recovery of waste nitrogen discharged from at least one of an oxygen production plant and a nitrogen production plant is preferable.
  • the ability to procure inert gas is easy and inexpensive.
  • oxygen production plants and nitrogen production plants are used in processes such as the blast furnace method and direct reduced iron method. What is installed can be applied.
  • first gas calorific value measuring devices installed in the tank so as to be spaced apart from each other are further provided so that the calorific value distribution of the gas in the tank can be measured by the first gas calorific value measuring device. Can be configured.
  • a powerful gas calorie fluctuation suppressing device that detects the distribution of gas calorie values in the tank based on the measurement value of the first gas calorific value measurement device, and in the tank according to the distribution of gas calorie value.
  • LV which preferably includes a control device to control the direction of gas flow into. This is because good gas mixing in the tank can be realized.
  • An inlet gas calorific value measuring device for measuring a gas calorie value on the inlet side installed in a fuel gas supply passage connected to the gas inlet, and a fuel gas supply passage connected to a gas outlet.
  • the gas calorie fluctuation suppressing device including the outlet gas calorific value measuring device for measuring the gas calorie value on the outlet side is preferable.
  • a powerful gas calorie fluctuation suppressing device based on the measured values of the inlet gas calorific value measuring device and the outlet gas calorific value measuring device, and the calorie fluctuation of the inflow gas to the tank and the exhaust gas from the tank. It is preferable to include a control device that controls the calorie fluctuation and changes the gas inflow direction into the tank based on the comparison result.
  • the ceiling of the tank is configured to move up and down
  • control for changing the gas inflow direction into the tank based on the direction and distance of the vertical movement of the ceiling is performed. It is preferred to have a device. This is because the gas inflow direction can be selected according to the height of the ceiling to obtain the optimum gas mixture.
  • the tank in which the ceiling moves up and down is a tank having a lid member (which constitutes a ceiling) that can be moved up and down according to the tank internal pressure, and a lid member that is driven by the drive device. This refers to a tank that can select a tank volume that can maximize the balance effect by actively moving up and down.
  • the gas outlet is formed at a position deviated from the extended linear force of the central axis of the gas inlet. This is because the residence time of the fuel gas flowing into the tank can be extended.
  • the extension line of the central axis of the gas inlet refers to, for example, the extension line of the central axis of the inclined pipe member described above.
  • the fuel gas supply facility of the present invention comprises:
  • a fuel gas supply passage for supplying the fuel gas to the combustion facility as a fuel gas, and a gas calorie suppression device for suppressing fluctuations in the calorific value of the fuel gas supplied through the low calorie supply passage,
  • This gas calorie suppressing device is composed of any one of the gas calorie fluctuation suppressing devices described above.
  • An outlet passage connected between the gas outlet of the tank and the fuel gas supply passage, and connected between both the upstream side and the downstream side of the connection point of the outlet passage in the tank gas inlet and the fuel gas supply passage.
  • An outlet passage connected between the gas outlet of the tank and the fuel gas supply passage; an inlet passage connected between the gas inlet of the tank and the upstream side of the connection point of the outlet passage in the fuel gas supply passage;
  • a return passage connected between the downstream side and the upstream side of the connection point of the outlet passage in the fuel gas supply passage;
  • the fuel gas supply passage on the downstream side is connected to the gas outlet of the tank, the fuel gas supply passage on the upstream side is connected to one gas inlet of the tank, the fuel gas supply on the other side of the tank and the fuel gas on the downstream side A return path connected between the supply path and
  • a fuel gas supply passage on the downstream side is connected to the gas outlet of the tank,
  • An upstream fuel gas supply passage is connected to one gas inlet of the tank, and a return passage connected between the fuel gas supply passage upstream of the tank and the fuel gas supply passage downstream of the tank;
  • the gas turbine equipment of the present invention comprises:
  • Fuel gas supply equipment for supplying fuel gas as fuel gas to this combustion equipment
  • the combustion facility is a gas turbine
  • the fuel gas supply facility is composed of at least one of the fuel gas supply facilities described above.
  • Fuel gas supply equipment for supplying fuel gas as fuel gas to this combustion equipment
  • the combustion facility is a boiler that burns gas with a burner
  • the fuel gas supply facility is composed of at least one of the fuel gas supply facilities described above.
  • low calorie gas that can change calorie such as process by-product gas
  • the calorie fluctuation of the supplied low calorie gas can be suppressed (mitigated) by mixing the time difference.
  • the applied force can eliminate short-cycle and medium-cycle fluctuations and leave only long-period fluctuations, as in a low-pass filter. Dilution is done effectively and easily. In some cases, dilution with a diluent gas may be unnecessary.
  • FIG. 1 is a piping diagram showing an outline of a gas turbine power generation facility including a low calorie gas supply facility which is an embodiment of a fuel gas supply facility of the present invention.
  • FIG. 2 is a graph showing an example of a state where the calorie fluctuation of low calorie gas is moderated by passing through the buffer tank in FIG.
  • FIG. 3 is a graph showing another example of a state where the calorie fluctuation of low calorie gas is alleviated by passing through the buffer tank.
  • FIG. 4 A graph showing still another example of a state in which the calorie fluctuation of the low calorie gas is alleviated by passing through the buffer tank.
  • FIG. 5 is a piping diagram showing another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 6 is a partial cross-sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 7 is a partial cross-sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 8 is a partial cross-sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 9 is a perspective view showing an example of a gas inflow device used in the buffer tank of FIG. 8.
  • FIG. 10 is a partial cross-sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 11 is a partial sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • 12 is a partial cross-sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 13 is a partial sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 14 is a partially sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • FIG. 15 is a partially sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • FIG. 16 is a partially sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 17 is a partially sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • FIG. 18 is a partial cross-sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 19 is a partial sectional front view showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 20 is a graph showing an example of a simulation result of time difference mixing of gases in a buffer tank.
  • FIG. 21 is a graph showing another example of the simulation result of the time difference mixing of the gas in the buffer tank.
  • FIG. 22 is a piping diagram showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 23 is a piping diagram showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • FIG. 24 is a graph showing an example of a state where the calorie fluctuation of the low calorie gas is alleviated by passing through the buffer tank of FIG. 22 or FIG.
  • FIG. 25 is a piping diagram showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG.
  • FIG. 26 is a piping diagram showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • FIG. 27 is a piping diagram showing still another example of a buffer tank that can be installed in the gas turbine power generation facility of FIG. 1.
  • FIG. 28 is a piping diagram showing an outline of a boiler facility including a low calorie gas supply facility according to another embodiment of the present invention.
  • FIG. 1 shows a low calorie gas supply facility 1 which is an embodiment of the fuel gas supply facility of the present invention for supplying low calorie gas as a fuel gas to a gas turbine as a combustion facility, and this low calorie gas supply facility 1. It is a piping diagram showing the outline of the included gas turbine equipment. A gas turbine power generation facility is exemplified as a gas turbine facility.
  • low calorie gas is a gas whose calorific value is about 12 MjZNm 3 or less, and its calorie and other characteristics often vary.
  • the low-calorie gas supply facility 1 as the fuel gas supply facility is a fuel gas supply that supplies by-product gas (hereinafter referred to as low-calorie gas) generated in the directly reduced iron facility S to the gas turbine 2 as fuel.
  • a low calorie gas supply pipe 3 as a passage and a dilution gas supply pipe 4 for supplying a dilution gas to the low calorie gas supply pipe 3 for diluting the low calorie gas are provided.
  • the reason why the diluted gas is supplied to the low calorie gas is to prevent the calorie value of the low calorie gas from fluctuating and exceeding the allowable calorie range inherent to the gas turbine.
  • the dilution gas supply pipe 4 is provided with a flow rate adjusting valve (hereinafter referred to as a flow control valve) 1 4 and a flow meter 18 for adjusting the flow rate of the dilution gas, and is connected to the low calorie gas supply facility 1 by the mixer 6. It has been.
  • a flow rate adjusting valve hereinafter referred to as a flow control valve
  • a flow meter 18 for adjusting the flow rate of the dilution gas
  • the inert gas is not limited to ⁇ , but may be CO, He, or the like.
  • the portion downstream of the mixer 6 of the low calorie gas supply pipe 3 may be sent to the gas turbine 2 in a state where the low calorie gas is mixed with the diluent gas. Therefore, the pipe in this range is called the mixed gas supply pipe 13. .
  • This low calorie gas supply facility 1 is used to control its operation.
  • the control device 5 is provided.
  • a dust collector 7 for removing dust from the low calorie gas directly sent from the reduced iron facility S and a primary storage of the low calorie gas.
  • Buffer tanks (hereinafter also simply referred to as tanks) 10 are installed.
  • the notch tank 10 is formed with an inlet 10a to which the upstream low calorie gas supply pipe 3 is connected and an outlet 10b to which the downstream low calorie gas supply pipe 3 is connected separately from the inlet 10a.
  • the buffer tank 10 and a buffer tank 31 described later include an inclined pipe member 35 (see FIG. 6 and the like), a gas inflow device 36, and an inert gas supply pipe 42 as an inert gas supply passage. Functions selectively as a gas calorie fluctuation suppressing device.
  • the notch tank 10 has a relatively large capacity, and the low calorie gas flowing in while changing the calories from time to time is mixed in the buffer tank 10 with a time difference. That is, the low calorific gas that has flowed into the notch tank 10 at the same time is distributed to the portion where the partial force flowing out from the outlet 10b stays in the buffer tank 10 until late. On the other hand, as the inlet 10a force continuously receives new gas, the previously flowing gas and the newly flowing gas are constantly mixed. Here, this is called time difference mixing.
  • the calorific value detection devices 8 and 9 for detecting the calorific value of the low calorie gas are installed on the upstream side and downstream side of the notch tank 10, and the flow rate is measured on the downstream side of the buffer tank 10.
  • a flow meter 11 is installed. In FIG. 1, the flow meter 11 is not limited to this position.
  • the force is installed in the portion between the buffer tank 10 and the mixer 6 in the low calorie gas supply pipe 3.
  • it may be installed in the mixed gas supply pipe 13 downstream from the mixer 6 or may be installed in the fuel pipe 17 connected to the combustor 19 of the gas turbine 2 described later.
  • a plurality of other calorific value detection devices 12 are directly attached to the buffer tank 10. These actions will be described later.
  • the calorific value detection devices 8, 9, and 12 a so-called calorimeter that directly measures the calorific value of gas, a device that measures the content (concentration) of combustible components, and the like are used. If importance is attached to the detection speed, it is currently preferred to use a combustible gas concentration detector. In addition, depending on the type of combustible component that is mainly contained in the applied low-calorie gas, main concentration fluctuations occur. Depending on the combustible component (for example, by-product gas in the direct reduced iron method, monoxide and carbon), a concentration detector that detects the concentration of that component may be used. In this specification, these calorific value detection devices as a whole are referred to as “calorimeters”.
  • a calorimeter 15 is installed in the mixed gas supply pipe 13. This is because the calorimeter 9 and the flow meter 11 on the outlet side of the tank 10 are monitored, and the power calorimeter 15 of the mixed gas supply pipe 13 is monitored to determine the appropriateness of the final calorific value of the mixed gas. It is.
  • an oxygen concentration meter Fig. (Not shown).
  • a fuel gas compressor 16 of the gas turbine 2 is installed on the downstream side of the calorimeter 15.
  • a flow rate adjusting valve 20 for adjusting the turbine output is installed in the fuel pipe 17 connected from the fuel gas compressor 16 to the combustor 19 of the gas turbine 2.
  • Reference numeral 21 denotes a filter installed in a pipe for supplying air to the combustor 19.
  • a generator 22 is connected to the gas turbine 2.
  • the gas turbine 2 may be provided with an exhaust heat recovery boiler power generation facility that generates power using the exhaust gas.
  • the buffer tank 10 has the inlets 10a and 1 Ob to which the low calorie gas supply pipe 3 is connected. Therefore, all of the low caloric gas that has been sent flows into the buffer tank 10.
  • the buffer tank has a large volume, for example, a low calorie gas supply pipe 3 having a diameter of about 2-3 m and a normal volume of about 20000-200000 m 3 is installed. The low calorie gas sent while the calorie fluctuates from time to time is mixed in the buffer tank.
  • Figure 2 when the volume of the buffer tank 10 in Figure 1 and 200000M 3, the suppression of calorie variance in the case of low calorie gas you calorie variance is supplied at a flow rate 500,000 nm 3 ZHR (slow This shows the simulation result of the (sum) state.
  • the horizontal axis represents time (minutes), and the vertical axis represents the gas calorie value (kcal / Nm 3 ), which is the calorific value of low calorie gas.
  • the curve indicated by the broken line in the figure indicates the calorie fluctuation (original fluctuation) of the low calorie gas sent to the buffer tank 10. This is an actually measured sample.
  • the curve shown by the solid line shows the calorie fluctuation (after-suppression fluctuation) of the low calorie gas exiting the buffer tank 10 after sufficient time difference mixing.
  • the calorific value of the low calorific gas before entering the noffer tank 10 fluctuates from about 1530 kcalZNm 3 force to about 2360 kcalZNm 3 . In other words, it has a fluctuation range of about ⁇ 21% of the average value (1945kcalZNm 3 ).
  • FIG. 3 shows the decay state of calorie fluctuation when the flow rate of the low caloric gas is 500000 Nm 3 Zhr and the volume of the buffer tank 10 is 100000 m 3 which is half of the above. Sufficient time difference mixing in calorie variance also the buffer tank 10 in this case, it is suppressed in the range of up to 1700kcal / Nm 3 Kakara 2040KcalZNm 3, fluctuation width of about ⁇ 9% of the average value (1970kcalZNm 3) .
  • Fig. 4 shows the decay state of calorie fluctuation when the volume of the buffer tank 10 is set to 50000m 3 in the facility in which low calorie gas is supplied at a flow rate of 200,000 Nm 3 Zhr.
  • the calorie fluctuation in this case is also suppressed to the range of 1740kcal / Nm 3 force to 2010kcalZNm 3 by sufficient time difference mixing in the buffer tank 10, and the fluctuation range is about ⁇ 7.2% of the average value (1875k calZNm 3 ). It is.
  • the fluctuation width is an average value (1875 kcal ZNm 3 ) of about ⁇ 12%.
  • FIG. 5 in a facility where low calorie gas is supplied at a flow rate of 200000 Nm 3 Zhr, two buffer tanks 10 with a volume of 25000 m 3 are installed in parallel, and both units are in normal operation. It can be used to use only one tank only for unsteady situations such as periodic inspections and malfunctions.
  • the buffer tank capable of realizing the time difference mixing of the low calorie gas
  • the calorie fluctuation of the low calorie gas is greatly suppressed.
  • the control of mixing the inert gas downstream is very easy.
  • the fluctuation range of the fuel gas of the gas turbine 2 is set to 10% of the reference calorie value (average value)
  • the average value of the fluctuating calorie is calculated downstream of the nota tank.
  • the air supply operation it is no longer necessary to take into account calorie fluctuations of low-power regas.
  • FIG. 6 shows another buffer tank (hereinafter also simply referred to as a tank) 31.
  • This buffer tank 31 has been modified to be used as a gas holder in a conventional gas turbine equipment as a calorie fluctuation suppressing device. That is, an inlet 31a and an outlet 31b are separately formed in the tank 31, and an upstream low calorie gas supply pipe 3 and a downstream low calorie gas supply pipe 3 are connected to them.
  • the gas holder is included in the device 32 for monitoring the gas balance.
  • the gas amount balance monitoring device 32 is for balancing the amount of low calorie gas sent from the upstream side with the amount of gas consumed by the gas turbine.
  • This gas amount balance monitoring device 32 is arranged so that the inner volume variation type tank 31 and the upper end opening of the tank 31 are hermetically closed by a seal member 33c or the like and the inside of the tank can be moved up and down.
  • the lid member 33a is provided with an adjustment weight 34 connected to the lid member 33a, for example.
  • the lid member 33a has a ceiling and can be called an upper tank that is nested with the lower tank 33b.
  • the seal member 33c is disposed in the gap between the upper tank 33a and the lower tank 33b. The tank moves up and down by the balance between the total weight of the upper tank 33a, the weight of the weight 34 and the push-down force due to the atmospheric pressure, and the push-up force caused by the internal pressure of the tank 31.
  • the lid member 33a moves up and down in accordance with a change in the balance between the supply amount and consumption amount of low calorie gas. While monitoring the vertical movement of the lid member 33a, take measures such as releasing the gas out of the system and reducing the turbine load.
  • This gas holder can also be used as a buffer tank 31 for low-calorie gas time difference mixing! /
  • Fig. 6 to Fig. 19 show a configuration in which the gas flow direction into the tank is devised so that the time difference mixing of the low calorific gas is performed more sufficiently in the notch tank. It has been done. In other words, a part of the low calorific gas that has flowed into the tank stays in the tank for as long as possible and is mixed sufficiently in the tank, so that an ideal time difference mixing is made. .
  • the gas inflow direction into the tank is inclined upward or downward from the horizontal direction. As a premise, it will be necessary to make the internal volume of the tank sufficiently large with respect to the volume flow rate of the gas flowing into the tank.
  • the tank 31 in FIG. 6 is the buffer tank 31 using the gas holder as described above. However, this is an example, and the tank 10 without the movable lid member 33a also has the gas inflow direction.
  • a devised configuration can be applied. The same applies to the tanks shown in FIGS. 7, 8, 10, 12, 12-19, 22, and 23 described later.
  • An inlet 31a and an outlet 31b are formed in the vicinity of the lower end of the peripheral wall of the tank 31, and an upstream and downstream low-force regas supply pipe 3 communicates with each other.
  • the low calorie gas supply pipe 3 is arranged almost horizontally, but the upstream low calorie gas supply pipe 3 connected to the inlet 31a is connected to an inclined pipe member 35 that is continuously inclined upward. .
  • a stirring device 28 such as a fan may be installed in the tank. This is to promote gas mixing in the tank, thereby realizing more effective time difference mixing.
  • the agitator 28 it is preferable to install it in the vicinity of the outlet 31b in such a posture that gas near the outlet of 3 lb can flow toward the inside of the tank. This is because it is possible to lengthen the residence time of the gas in the tank by pushing the gas to flow out from the outlet 31b back to the inside of the tank, so that effective time difference mixing of the gas can be realized.
  • the gas when the outlet is formed in the lower part of the tank, it is preferable that the gas can flow upward, and when the outlet is formed in the upper part of the tank, the gas can flow downward.
  • the stirring device 28 is not limited to the tank 31 shown in FIG. 6, but may be installed in the tanks 10, 23, 31, 47 shown in other drawings and other tanks that can exert a calorie suppressing effect. Is possible.
  • a pipe (not shown) for circulating the gas in the tank may be connected to the tank. That is, an inlet and an outlet for gas circulation are formed on the tank wall, and a single piping for circulation is connected to the inlet / outlet. Then, the same fan as the agitator 28 is installed inside the circulation pipe. In this way, the operation of this fan causes the gas in the tank to be sucked out of the circulation pipe and re-introduced into the tank, resulting in gas circulation, which in turn has the effect of stirring the gas in the tank.
  • the tank 23 shown in FIG. 7 is an internal volume variation type buffer tank 23 using another type of gas holder.
  • This gas holder is installed so that it moves up and down in an airtight manner in the tank.
  • the lid member 24 can be actively moved up and down via the chain or cable 26 by the driving device 25 to determine the tank volume that can maximize the gas supply-demand balance effect during operation.
  • the lid member 24 is reduced in size and weight so that it can be applied to a large-volume tank, and the drive system for moving up and down can be simplified.
  • a low calorific gas inlet 23a and an outlet 23b are formed separately, the upstream low calorie gas supply pipe 3 is connected to the inlet 23a, and the downstream low caloric gas supply pipe 3 is connected to the outlet 23b. Therefore, it can be used as a buffer tank that has the effect of suppressing calorie fluctuation.
  • An inclined pipe member 35 inclined upward is continuously connected to the upstream low calorie gas supply pipe 3 connected to the inlet 23a.
  • Reference numeral 27 denotes a pulley that supports the cable 26.
  • the upstream low calorie gas supply pipe 3 is piped below the bottom of the tank 23.
  • the inlet 23a of the tank 23 is opened in the vicinity of the periphery at the bottom of the tank, and the inclined pipe member 35 is inclined upward from below the bottom of the tank and connected to the inlet 23a.
  • This configuration also achieves effective time difference mixing, similar to the tank 31 in FIG.
  • the inlet 23a is opened at the bottom of the tank, the allowable range of the height variation of the lid member 24 can be extended to the vicinity of the bottom of the tank, and the internal volume of the tank 23 can be utilized to the maximum.
  • the tanks 31 and 23 (Figs. 6 and 7) described above are not limited to a force-generating structure in which the inclined pipe member 35 inclined upward is disposed.
  • an inlet and an outlet can be formed in the vicinity of the upper end of the peripheral wall of the tank, and a low calorie gas supply pipe 3 can be connected to these.
  • an inclined pipe member that is continuously inclined downward is connected to the tip of the upstream low calorific gas supply pipe 3. That is, if the inclination direction of the inclined pipe member is selected according to the height of the connection position of the upstream low calorie gas supply pipe 3 to the tank.
  • an inlet 31a and an outlet 31b are formed near the lower end of the peripheral wall. Both the upstream and downstream low-calorie gas supply pipes 3 are connected almost horizontally.
  • the inlet 31a is provided with a gas inflow device 36 for changing the gas inflow direction into the tank, and the low-calorie gas supply pipe 3 on the upstream side is connected to the gas inflow device 36.
  • the tank 31 originally created a flow of gas that flowed into its interior, Although it has a function of mixing, it is possible to change the gas flow mode by the gas inflow device 36 and the control device 5 that controls this operation, thereby further improving the uniform mixing effect. it can.
  • the gas inflow device 36 includes a housing 37 formed as a part of the upstream low calorie gas supply piping outside the inlet 3la of the tank, and the housing 37.
  • the housing 37 has a plurality of variable louvers 38 accommodated in the housing 37 at intervals in the vertical direction.
  • Each variable louver 38 is disposed substantially horizontally, and its rotating shaft 39 protrudes outside the housing 37.
  • the protruding portion of the rotating shaft 39 can be rotated by known means such as an electric motor, a hydraulic motor, a pneumatic cylinder, a hydraulic cylinder, and the louver 38 can be swung upward and downward.
  • the louver 38 is swung in the vertical direction, the gas inflow direction can be changed accordingly.
  • the number of louvers to be installed is not limited and may be one or more. If the number is large, the effect of determining the inflow direction is improved, but the inflow resistance tends to increase.
  • an inclination direction indicator 39a is installed on the rotating shaft 39 protruding to the outside of the housing 37, and the inclination direction of the louver 38 from the outside of the gas inflow device 36, and consequently The gas inflow direction can be displayed.
  • the inclination direction of the louver 38 may be detected by a detector (not shown) and transmitted to the control device 5 and displayed on a remote display device (not shown) based on this detection signal. Also, make a transparent window in the housing 37 so that you can see the direction of the louver 38 from the outside.
  • the ceiling position signal is input to the control device 5, and the optimum is determined according to the position signal. It is possible to select a proper gas inflow direction. For example, when the lid member 33a is raised, the louver 38 is swung upward so that the elevation angle from the horizontal is increased in order to further incline the gas inflow direction. When the lid member 33a is lowered, the louver 38 is swung so that the elevation angle from the horizontal direction becomes smaller in order to incline the gas inflow direction below the current direction.
  • the plurality of calorimeters 12 described above are attached to the tank 31 (including the lid member 33a) in Fig. 8 at appropriate positions at intervals.
  • the degree of time difference mixing of the gas in the tank 31 can be known from the measured value of the calorimeter 12. It can be determined that the time difference mixing is more effective as the difference in calorie value of each part in the tank 31 (the distribution of calorie values) is smaller! /.
  • the calorimeter is continuously measured by the calorimeter 12 while the inclination angle of the louver 38 is changed by the control device 5. Then, it is possible to know the optimum inclination angle of the louver 38 for the time difference mixing.
  • control device 5 can control the louver 38 to an optimum angle based on the calorie value distribution in the tank during operation.
  • An inlet calorimeter 8 and an outlet calorimeter 9 are respectively installed in the low-calorie gas supply pipes 3 connected to the tank 31 in FIG. 8 respectively.
  • the calorimeters 8 and 9 continuously measure the gas calorie value, so that the calorie fluctuation in the upstream and downstream low calorie gas supply pipes 3 can be detected. Since the control device 5 receives the signals indicating the gas calorie fluctuation on the upstream side and the downstream side, the control device 5 can detect the degree of the effect of suppressing the calorie fluctuation by the tank 31 by comparing them. Therefore, the control device 5 calculates the deviation between the set value and the detected value of the calorie fluctuation suppression level and fills this deviation (so that the uniform time difference mixing effect is maximized). To control.
  • the calorimeter value is continuously measured by the calorimeters 8 and 9 while changing the inclination angle of the louver 38 by the control device 5. Then, it is possible to know the optimum inclination angle of the louver 38 for time difference mixing. Further, it is possible to know the optimum inclination angle for every other condition such as the height position of the lid member 33a of the tank 31 described above. If this data is stored in the control device 5, the louver 38 is adjusted to an optimum angle so as to fill the deviation between the set value of the calorie fluctuation suppression level and the detected value by the control device 5 during operation. Control becomes possible.
  • the gas inflow device 36 of the tank 31 of FIG. 8 is not limited to a force-powered configuration in which the variable louver 38 is housed inside the housing 37 installed outside the tank.
  • the variable louver 38 may be installed at a position close to the inlet in the tank so that the external force of the tank can also be driven to swing.
  • FIG. 10 shows a tank 31 provided with a gas inflow device 36 incorporating a variable louver 38 as described above in the vicinity of the periphery of the bottom.
  • the upstream low calorie gas supply pipe 3 is piped downward from the bottom of the tank 31, and the inlet 31 a of the tank 31 is opened near the periphery of the tank bottom.
  • a gas inflow device 36 is installed below the opening 31a. Even in this configuration, as in the case of the tank 31 in FIG. 8, effective time difference mixing is realized by the detection by the calorimeters 8, 9, and 12 and the control of the control device 5.
  • the gas inflow device for changing the gas inflow direction is not limited to the device 36 provided with the variable louver 38. Any known suitable means capable of arbitrarily changing the gas inflow direction from the outside can be adopted. Further, the gas inflow device 36 is not limited to the tank 31 having the movable lid member 33a, but can be installed in a fixed tank 10 (see FIGS. 1 and 11) whose volume cannot be changed. .
  • the gas inflow device 36 described above can also be used to change the flow of gas flowing into the tank in the lateral direction. That is, the gas inflow device 36 as a whole is attached to the tanks 10, 23, and 31 so as to be rotatable in the range of 0 ° -90 ° around its central axis. In this way, as described above, the optimal flow direction can be set by changing the gas flow direction in the horizontal direction while continuously checking the calorie fluctuation suppressing effect in the tank by the calorimeters 8, 9, and 11. It is out.
  • the tank 31 shown in Fig. 11 has an inlet 10a and an outlet 10b formed in the vicinity of the lower end of the peripheral wall, and the outlet 10b is connected to the downstream low calorie gas supply pipe 3.
  • An upstream low calorie gas supply pipe 3 is inserted inside the tank. Inside the tank, the upstream end of the low calorie gas supply pipe 3 is detachably connected by a connecting member 40 such as an inclined pipe member 35 force S flange inclined upward.
  • a connecting member 40 such as an inclined pipe member 35 force S flange inclined upward.
  • the low-calorie gas supply pipe 3 on the upstream side may be connected to the inlet 10a, and the inclined pipe member 35 may be detachably connected to the inner side of the inlet 10a.
  • this tank 10 does not have a movable lid member and the ceiling height is fixed, it is not necessary to frequently change the gas inflow direction. Therefore, when changing the flow rate of low calorific gas, etc. It can be replaced.
  • the inclined pipe member 35 is rotated around the center axis of the low calorie gas supply pipe 3 (for example, the bolt holes of the flanges 40 are shifted by one pitch or more) and attached to the low calorie gas supply pipe 3.
  • the inflow direction can be changed not only vertically but also horizontally (laterally).
  • Three inlets 31a are formed in the tank 31 shown in Fig. 12, and branch pipes (upstream branch pipes) 3a of the low-calorie gas supply pipe 3 on the upstream side are connected to the inlets 31a via the inclined pipe member 35. It is connected.
  • the number of the inlet 31a and the upstream branch pipe 3a is not limited to three, but may be plural.
  • the plurality of inlets 31a are formed on the peripheral wall (or the bottom) of the tank at intervals.
  • Each upstream branch pipe 3a is provided with a stop valve (may be a flow control valve! /) 41, which can be selected and opened as appropriate. By the above control device 5, the three stop valves 41 are opened and closed sequentially, and the three upstream branch pipes 3a are switched periodically or non-periodically, thereby adjusting the gas inflow position into the tank. Can be changed.
  • the control device 5 performs control so as to optimize the mode of gas flow in the tank. This optimal mode is based on a data set created based on a lot of operation data, and the most appropriate data set is applied to similar operation situations (gas calorie, gas flow rate, gas composition, residence time in tank, etc.) can do.
  • the inclined pipe member 35 need not be interposed, more effective time difference mixing can be realized by attaching the inclined pipe member 35.
  • the inclination angles in the direction of the central axis of the plurality of inclined pipe members 35, particularly in the vertical direction, may be varied. In this way, it is possible to select an appropriate gas inflow direction corresponding to a change in conditions such as a change in the ceiling height of the tank.
  • a plurality of downstream branch pipes may be provided together with a plurality of upstream branch pipes 3a.
  • a stop valve or a flow control valve may be attached to each downstream branch pipe, and these may be appropriately selected and opened and closed.
  • the above The control device 5 switches the three upstream branch pipes 3a periodically or aperiodically and changes the flow rate, and the downstream branch pipes are also switched periodically or aperiodically and the flow rate is changed. Can be made. Therefore, it is possible to realize a gas flow mode that is more preferable for the time difference mixing of the gas as compared with the control of only the upstream branch pipe 3a described above.
  • Fig. 12 (a) which is a plan view of the tank 31, is connected to a position where the upstream branch pipe 3a and the downstream low calorie gas supply pipe 3 face each other (position 180 ° with respect to the central axis of the tank). It is not limited to the 1S-powered configuration. The position which does not oppose may be sufficient.
  • the pipes 3a and 3 may be connected at positions where the angles are 90 °, 120 °, 135 °, and the like. This is because the gas may stay in the tank longer.
  • Figs. 6-8, 10, 11, 11, 13-19 The same applies to the other tanks (Figs. 6-8, 10, 11, 11, 13-19).
  • a tank 31 shown in FIG. 13 has the same gas inflow device 36 (see FIG. 9) attached to each of the plurality of inlets 31a of the tank 31 shown in FIG.
  • the description of the gas inflow device 36 is omitted.
  • the tank 31 may be provided with the plurality of downstream branch pipes described above. According to this configuration, in addition to the effect of the time difference mixing by the control described with reference to FIG. 12, it is possible to control the gas flow direction by the variable louver 38. It becomes possible to implement
  • FIG. 14 and FIG. 19 shows a tank 31 having a mechanism for introducing an inert gas for diluting the low calorie gas into the tank.
  • a low-calorie gas supply pipe 3 shown in FIG. 1 is provided with a dilution gas supply pipe 4 for supplying a dilution gas such as an inert gas downstream of the buffer tank 10.
  • a dilution gas such as an inert gas downstream of the buffer tank 10.
  • the calorie control performed using the diluent gas supply pipe 4 can be simplified. Or is unnecessary.
  • the detection result force of the inlet calorimeter 8 calculates the average caloric value of the low calorific gas on the inlet side, and if this average caloric value exceeds the allowable caloric value range specific to the gas turbine, the caloric value is allowed. Fill the tank with the amount of dilution gas needed to reduce it to within the range.
  • the necessary amount of dilution gas is introduced into the tank so that it is almost equal to the average caloric value on the outlet side at that time.
  • a suitable inert gas supply mechanism is connected to the tank 31 together with or in place of the dilution gas supply pipe 4 in the tank 31 shown in FIG.
  • a flow meter installed downstream of tank 10 In addition to 11 (see Fig. 1), a flow meter 29 that measures only the flow rate of low calorie gas is installed in the low calorie gas supply pipe 3 above the inert gas supply point (see Fig. 14 and Fig. 19).
  • the upstream low calorie gas supply pipe 3 is connected to the inlet 31a of the tank 31 shown in FIGS. 14 and 15 via the same inclined pipe member 35 as shown in FIGS. Detailed explanation of this point is omitted.
  • an inert gas supply pipe 42 is inserted into and connected to the upstream low calorie gas supply pipe 3 and the tip is opened so that the inert gas is mixed into the low calorie gas flow. Yes. Therefore, the range in which the inert gas supply pipe 42 in the low-strength regas supply pipe 3 is inserted is configured as a double pipe.
  • the flow rate of the inert gas is preferably lower than the flow rate of the low calorie gas from the viewpoint of improving the mixing property. With the configuration described above, the inert gas is introduced into the tank in the same inflow direction as the low calorie gas, and the inert gas is prevented from being distributed unevenly in the low calorie gas.
  • a tank 31 shown in FIGS. 16 and 17 is provided with a gas inflow device 36 as shown in FIG. 9 in place of the inclined pipe member 35 of the tank 31 shown in FIGS. 14 and 15. .
  • the description of the structure and function of the gas inflow device 36 is omitted. Since this tank 31 is provided with a double pipe consisting of a low calorie gas supply pipe 3 and an inert gas supply pipe 42, the low calorie gas flowing into the tank can be changed even if the flow direction is changed by the variable louver 38. Inert gas flows in the same direction. This construction prevents the inert gas from being unevenly distributed in the low calorie gas in the tank.
  • the above-mentioned double pipe is a multiple pipe such as a triple pipe as required. As good as.
  • an upstream side low calorie gas supply pipe 3 is connected to one inlet 31a via an inclined pipe member 35, and an inert gas supply pipe 42 is connected to the other inlet 42a via an inclined pipe member 35.
  • the inclined angles of the horizontal forces of both inclined pipe members 35 are made substantially the same so that the flow directions of the low calorie gas and the inert gas into the tank are substantially parallel.
  • the low calorie gas supply pipe 3 and the inert gas supply pipe 42 are arranged close to each other as shown in the drawing.
  • those using the inclined pipe member are not particularly limited to the inclined pipe member.
  • Other suitable means that can tilt the gas inflow direction in a fixed manner may be used. For example, you can install a louver with a fixed tilt angle at the tank inlet 10a, 3 la, or install a louver with a fixed tilt angle near the inlet inside the tank! /.
  • a gas inflow device 36 as shown in Fig. 9 is provided at the inlet 42a for the inert gas supply pipe instead of the inclined pipe member 35 of the tank 31 shown in Fig. 18. It is a thing. The description of the structure and function of the gas inflow device 36 is omitted.
  • both the low calorie gas supply pipe 3 and the inert gas supply pipe 42 close to the top and bottom are equipped with the gas inflow device 36, so that the inflow directions of both gases can be made almost the same direction. is there.
  • the inflow directions of both gases can be changed in special cases where the inflow speeds of the two gases into the tank are different, various controls are possible.
  • the powerful configuration prevents the inert gas from being unevenly distributed in the low calorie gas in the tank.
  • the inert gas charged into tank 10 (31) described above includes waste nitrogen released from oxygen production plants used in the blast furnace method and direct reduced iron methods such as the FIN EX method and COREX method.
  • waste nitrogen containing a small amount of oxygen discharged from a nitrogen production plant attached to the oxygen production plant It recovers and uses a large amount of nitrogen that is discarded.
  • oxygen is used as a reducing agent, so it is essential to install an oxygen production plant that produces a large amount of oxygen.
  • an oxygen production plant is used even if there is a difference in scale.
  • Oxygen production plants produce oxygen by separating aerodynamic nitrogen, but the exhaust gas after separating oxygen is usually released to the atmosphere as waste nitrogen.
  • high-purity nitrogen is often produced by adding a nitrogen production plant to the oxygen production plant. Even in this case, nitrogen containing a small amount of oxygen is released to the atmosphere as waste nitrogen.
  • Such waste nitrogen has a gas composition of about 95-98% by mass of nitrogen gas and about 2-5% of oxygen, and is an extremely safe diluent gas from the viewpoint of the low calorific gas flammability limit. is there.
  • pure nitrogen filled in a cylinder or the like may be used.
  • a facility for supplying air or exhaust gas generated in the combustion facility into the tank may be provided instead of the inert gas.
  • the supply method it is supplied directly to the tank as in the case of the inert gas or to the low calorie gas supply pipe upstream of the tank.
  • air exhaust gas contains oxygen V
  • the upstream side so that the inflow directions of the low calorie gas (and the inert gas) flowing in from the plurality of pipes are parallel in a plan view.
  • the low calorie gas supply pipe 3, the inclined pipe member 35 and the gas inflow device 36 are oriented and connected to the tank.
  • the gas inflow direction may be configured to flow in a direction facing the central axis of the tank in plan view.
  • FIG. 20 and FIG. 21 the result of the simulation of the time difference mixing of the gas in the buffer tank 10 is shown as a curve representing the relationship between the residence time and the accumulated gas flow rate.
  • the horizontal axis represents the residence time (minutes) of gas in the tank
  • the vertical axis represents the ratio of the remaining gas.
  • the curve in the graph of Fig. 20 shows a state where the gas is completely mixed. That is, the gas enters the tank as well as the inlet force, and at the same time is mixed with the gas that has been in the tank.
  • containers product of the tank and 40000M3, simulator one flow of inflowing gas under conditions with 5 Nm 3 ZHR Chillon results are shown.
  • the meaning of this graph indicates the ratio of the gas that flows out of the outlet force at the predetermined time shown on the horizontal axis, that is, the ratio to the gas volume of the entire tank.
  • the number 1.0 on the vertical axis represents the gas volume of the entire tank.
  • the outlet force flows out for 100 seconds (indicated by the symbol HI) from 500 seconds to 600 seconds on the horizontal axis in the figure (this indicates the time that the force has passed since entering the tank, ie, the residence time).
  • the ideal time difference mixing is ideal when the gas is mixed at the same rate regardless of the elapsed time of the inflow force, that is, the line shown in the graph is a straight line. However, this does not exist in reality. It is reasonable to consider the state where complete mixing is performed as shown in Fig. 20 as the state where the best time difference mixing is performed.
  • Fig. 21 shows the results of a simulation of time-difference mixing of gas flowing in three directions from the tank inlet under the same conditions so that it can be compared with the above-described complete mixing state.
  • the fully mixed state is indicated by a solid line, when flowing at an elevation angle of 60 ° from the horizontal, it is indicated by a two-dot chain line, when flowing at an elevation angle of 65 ° from the horizontal is indicated by a one-dot chain line, and 90 ° from the horizontal.
  • the case of inflow with an elevation angle of ° (almost vertically above) is indicated by a broken line! It flows in at an elevation angle! Even in the case of a heel slip, it does not coincide with the complete mixed state, but draws a close curve. That is, it can be said that good time difference mixing is performed.
  • the fluctuation of gas calories is effectively suppressed.
  • Fig. 22 shows a buffer tank installed in parallel to the low calorie gas supply pipe 3.
  • the buffer tank installed in the bypass pipe attached to the low calorie gas supply pipe 3 is shown.
  • the gas holder installed in the existing low calorie gas supply equipment is also used as a gas calorie fluctuation suppression device by a slight structural change.
  • the gas holder installed in the conventional low calorie gas supply equipment is connected to the low calorie gas supply pipe 3 only by one communication pipe. This single communication pipe also serves as an entrance. The gas holder only needs to maintain the supply and demand of the gas in the low calorie gas supply pipe, so it should be connected to the low calorie gas supply pipe with a single pipe.
  • the tank 31 is connected with the communication pipe 43, and in addition to the communication pipe 43, an inlet pipe 44 is newly connected to the low calorie gas supply pipe 3.
  • the inlet pipe 44 and the communication pipe 43 constitute the bypass pipe.
  • This inlet pipe 44 is connected to the upstream side of the connection with the communication pipe 43 of the low calorie gas supply pipe 3.
  • This inlet pipe 44 is provided with a fan 45 as a gas pressure feeding device for feeding low calorie gas into the tank 31. Therefore, a part of the low calorie gas supplied flows into the tank 31 through the inlet pipe 44, the low calorie gas is mixed with time in the tank 31, and the same amount of gas passes from the tank 31 through the communication pipe 43.
  • the communication pipe 43 can also be called an outlet pipe.
  • the inclined pipe member 35 or the gas inflow device 36 described above is connected to the inlet 31a of the tank to which the inlet pipe 44 is connected.
  • the tank 31 suppresses the calorie fluctuation of a part of the low calorific gas supplied to the gas turbine by the low-power outlet regas supply pipe 3.
  • FIG. 23 shows another gas amount balance monitoring device 46 that can be used as a calorie fluctuation suppressing means.
  • This gas amount balance monitoring device 46 has a more economical configuration, and has an airtight tank 47 in which an inlet 47a and an outlet 47b are connected to a low calorie gas supply pipe 3 through a communication pipe 43 and an inlet pipe 44, respectively. Have it.
  • the tank 47 is provided with a pressure detection device 48, and the internal pressure of the tank 47 is constantly monitored.
  • the control device 5 issues a command to increase the gas consumption in the facility when the detected pressure reaches the upper limit range, and balances supply and demand for gas.
  • the rest of the structure is the same as the previously mentioned Knoffer Tank 10 (see Fig. 1). It can be sufficiently used as a fluctuation suppressing means.
  • the inclined pipe member 35 or the gas inflow device 36 is connected to the inlet 47a of the tank to which the inlet pipe 44 is connected.
  • This tank 47 suppresses the calorie fluctuation of a part of the low calorie gas supplied to the gas turbine by the low-power regas supply pipe 3.
  • Fig. 24 shows that the capacity of tank 31 (47) in Fig. 22 or Fig. 23 is set to 200,000 m 3 in a facility where low calorie gas with varying calories is supplied at a flow rate of 500000 Nm 3 / hr.
  • file is a graph showing the suppression state of calorie variance in the case of the 200000Nm 3 / hr of the gas out of 500,000 nm 3 / hr I down 45 [child stranded fed to tank 31 (47).
  • the curve shown by the broken line in the figure shows the calorie fluctuation (original fluctuation) of the low calorie gas sent directly from the reduced iron facility S. This is the actual measurement sample described above.
  • the curve represented by the two-dot chain line shows the simulation result of the calorie fluctuation (transient fluctuation) of the low calorie gas that leaves the tank and passes through the communication pipe 43 described above.
  • the curve indicated by the solid line shows the calorie fluctuation (after-suppression fluctuation) of the gas flowing through the low calorie gas supply pipe 3 part downstream from the point where the communication pipe 43 is connected to the low calorie gas supply pipe 3.
  • the calorific value of the low caloric gas before entering the tank 31 (47), which is the same as described above, has a fluctuation range of about ⁇ 21% of the average value (1945 kcalZNm 3 ).
  • the calorie fluctuation of the gas after joining the tank 31 (47) through the communication pipe 43 to the low calorie gas supply pipe 3 is 1690k cal / Nm 3 force 2100kcalZNm 3 , and the fluctuation range is the average value (1895kcalZNm 3 ) is suppressed to about ⁇ 11%.
  • This number is an example.
  • the inlet pipe 44 for feeding low calorie gas to the tank 31 (47) is connected upstream of the outlet pipe (communication pipe) 43 in the low calorie gas supply pipe 3. It is not limited to this configuration, and it may be connected downstream from the outlet pipe 43. Multiple pipes 43 and 44 may be provided.
  • FIG. 25 also shows a kaffa tank 31 installed in parallel to the low calorie gas supply pipe 3 as in the tank of FIG.
  • tank 31 and low-calorie gas supply pipe 3 An inlet pipe 44 having a fan 45 and the communication pipe 43 as an outlet pipe are connected between the two. That is, the inlet pipe 44 is connected to the inlet 31a of the tank 31, and the outlet pipe 43 is connected to the outlet 31b. However, a further inlet 49a is formed in the tank 31, and a return pipe 49 is connected to the inlet 49a.
  • the return pipe 49 is connected to the downstream side of the connection with the outlet pipe 43 in the low calorie gas supply pipe 3.
  • the return pipe 49 is provided with a fan 45 for sending low calorie gas to the tank 31.
  • the connection positions (inlet 3 la, 49a) of the inlet pipe 44 and the return pipe 49 to the tank 31 shown in the figure are close to each other.
  • a part of the low caloric gas is also pumped into the tank 31 through the inlet pipe 44 through the upstream side of the low calorie gas supply pipe 3 and at the same time from the downstream side of the low calorie gas supply pipe 3 through the return pipe 49.
  • a part of the low calorie gas is pumped, mixed with a time difference, and flows out from the outlet 3 lb to the communication pipe.
  • the time difference mixing for a long time is realized in the tank.
  • the longer the length of the return pipe 49 the longer the residence time of the gas mixed by time difference, and the more preferable time difference mixing is realized.
  • the return pipe 49 is connected to the downstream side of the low-calorie gas supply pipe 3 and the upstream side of the connection with the inlet pipe 44 of the low-calorie gas supply pipe 3 from the downstream side.
  • FIG. 26 also shows a buffer tank 31 installed in parallel to the low calorie gas supply pipe 3. Between the tank 31 and the low calorie gas supply pipe 3 as shown, the inlet pipe 44 and the communication pipe 43 as the outlet pipe are connected. However, the inlet pipe 44 is connected to the downstream side of the connection portion with the communication pipe 43 of the low calorie gas supply pipe 3. The inlet pipe 44 is provided with a fan 45 for sending low calorie gas to the tank 31. In other words, in the pipe between the buffer tank 31 and the low calorie gas supply pipe 3 in FIG. 26, the inlet pipe 44 is removed from the buffer tank 31 shown in FIG. 25, and the return pipe 49 shown in FIG. This configuration is considered as inlet piping 44.
  • the low calorific gas is passed through the inlet pipe 44 by the fan 4 to the tank. It is fed into 31 and mixed with time difference and flows out from the outlet 31b to the communication pipe. That is, since a part of the low calorie gas in which the calorie fluctuation is suppressed circulates, effective time difference mixing is performed. The longer the length of the inlet pipe 44, the longer the time difference mixing is realized in the tank.
  • the tank 31 shown in FIG. 27 has two types of inlets 31a and 49a.
  • One inlet 31a is connected to the upstream low calorie gas supply pipe 3, the outlet 31b is connected to the downstream low calorie gas supply pipe 3, and the other inlet 49a is connected to the downstream low calorie gas supply pipe 3.
  • Return pipe 49 is connected.
  • the two inlets 31a and 49a are formed close to each other.
  • the return pipe 49 is provided with a fan 45 for sending low calorie gas into the tank.
  • the inclined pipe member 35 and the gas inflow device 36 can also be applied to the upstream low calorie gas supply pipe 3 and the return pipe 49 connected to the buffer tank 31 (Figs. 25 to 27). I'll do it.
  • Fig. 28 shows the boiler equipment.
  • a boiler 52 and a low calorie gas supply facility 51 for supplying low calorie gas as fuel to the boiler 52 are provided.
  • the boiler 52 burns gas with a burner to generate steam, which is used for power generation, or the generated steam is used for steam supply for other purposes.
  • This low calorie gas supply facility 51 has removed the equipment installed in the low calorie gas supply piping 3 and the mixed gas supply piping 13 on the downstream side of the noffer tank 10 from the low calorie gas supply facility 1 shown in FIG. Is. That is, the illustrated low calorie gas supply facility 51 includes a low calorie gas supply pipe 53 that supplies the low calorie gas generated in the direct reduction iron facility S to the boiler 52 as fuel. In this low calorie gas supply pipe 53, a dust collector 7 for removing dust from the low calorie gas sent directly from the reduced iron facility S, and primary storage of the low calorie gas are stored.
  • Buffer tank 10, and upstream and downstream sides of buffer tank 10 are equipped with calorific value detectors 8 and 9 for detecting the calorific value of low calorie gas, and a flow meter 54 for measuring the supply of low caloric gas. Yes.
  • the same components as those of the low calorie gas supply facility 1 shown in FIG. 1 and piping are assigned the same reference numerals, and detailed description thereof is omitted.
  • the buffer tank installed in the low calorie gas supply equipment 51 for this boiler is not limited to the fixed tank 10 shown in Fig. 28 whose volume does not change, and the other tanks 23, 31, 47 described above are applied. You can also This low calorie gas supply facility 1 does not have a dilution gas supply facility. This is because it is desirable for the boiler to suppress the calorie fluctuation itself by the buffer tanks 10, 23, 31 and 47 in order to obtain a stable output. This is because the calorie value does not cause a big problem.
  • Fig. 28 only the boiler 52 is installed as a combustion facility to which low calorie gas is supplied by the low calorie gas supply facility 51.
  • the boiler 52 may be installed in combination with the gas turbine 2 (Fig. 1).
  • the portion between the calorimeter 9 and the flow meter 11 in the low calorie gas supply pipe 3 in FIG. 1 is downstream of the calorimeter 9 in FIG.
  • the side calorie may be connected so that the low calorie gas supply pipe 53 leading to the boiler 52 is branched.
  • the gas turbine and the boiler are exemplified as the combustion equipment, but the combustion equipment in the present invention is not limited to the gas turbine and the boiler.
  • the gas calorie fluctuation suppressing device and the low calorie gas supply facility described here can also be applied to other combustion facilities such as a heating furnace and an incinerator.
  • the force exemplifying the by-product gas generated by the direct reduction iron-making method as the low calorie gas to be used is not limited to this.
  • Low calorie gas includes blast furnace gas (BFG), coke oven gas (COG), converter gas (LDG), coal bed gas (Coal mine gas, referred to as CMG), smelting reduction iron manufacturing method
  • BFG blast furnace gas
  • COG coke oven gas
  • LDG converter gas
  • CMG coal bed gas
  • By-product gas generated by gas, TTL generated by gas-to-liquid (GTL) process, oil sand force is also generated by by-product gas generated by oil refining process, and waste incineration using plasma Yo Generated gas, methane gas (Landfill gas) generated in the process of fermenting and decomposing general waste including raw garbage in the landfill, and by-product gas generated by chemical reaction of other similar raw materials Low calorie gas etc. are included.
  • the present invention can be applied even when two or more kinds of gases are appropriately mixed and used as a mixed gas of B
  • the calorie fluctuation of low calorie gas can be suppressed. Dilution is done effectively and easily. In addition, dilution with dilution gas may not be necessary. It is also possible to construct an apparatus that suppresses gas calorie fluctuations by using existing gas holders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Le problème à résoudre dans le cadre de la présente invention est de prévoir un suppresseur de variation de calorie de gaz capable d’alimenter un gaz de basse calorie en tant que combustible stabilisé en supprimant la variation dans sa calorie. La solution proposée consiste en un suppresseur de variation de calorie qui comprend un réservoir tampon (10) destiné à stocker un gaz de basse calorie disposé temporairement dans un tuyau d’alimentation en gaz de basse calorie (3) destiné à alimenter un gaz de basse calorie en tant que gaz combustible vers une turbine à gaz (2), un orifice d’entrée (10a) formé dans le réservoir (10) et communiquant avec le côté amont du tuyau d’alimentation en gaz de basse calorie (3), un orifice de sortie (10b) communiquant avec le côté aval du tuyau d’alimentation en gaz de basse calorie (3) et un élément de tuyau incliné formé de manière continue avec le tuyau d’alimentation en gaz de basse calorie (3) communiquant avec l’orifice d’entrée (10a) et s’inclinant vers le haut.
PCT/JP2004/019547 2004-12-27 2004-12-27 Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere Ceased WO2006070442A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN200480044726A CN100593633C (zh) 2004-12-27 2004-12-27 气体发热量变动抑制装置、燃料气体供给设备、燃气轮机设备及锅炉设备
JP2006550510A JP4326566B2 (ja) 2004-12-27 2004-12-27 ガスカロリ変動抑制装置、燃料ガス供給設備、ガスタービン設備およびボイラー設備
KR1020077013831A KR100875497B1 (ko) 2004-12-27 2004-12-27 가스 칼로리 변동 억제 장치, 연료 가스 공급 설비, 가스터빈 설비 및 보일러 설비
PCT/JP2004/019547 WO2006070442A1 (fr) 2004-12-27 2004-12-27 Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere
BRPI0419147A BRPI0419147B1 (pt) 2004-12-27 2004-12-27 dispositivo de supressão da flutuação na caloria do gás, sistema de fornecimento de gás combustível, sistema de turbina a gás e sistema de caldeira
TW093141289A TWI276737B (en) 2004-12-27 2004-12-30 Gas calorie variation suppressor, fuel gas supply facility, gas turbine facility and boiler facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/019547 WO2006070442A1 (fr) 2004-12-27 2004-12-27 Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere

Publications (1)

Publication Number Publication Date
WO2006070442A1 true WO2006070442A1 (fr) 2006-07-06

Family

ID=36614569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/019547 Ceased WO2006070442A1 (fr) 2004-12-27 2004-12-27 Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere

Country Status (6)

Country Link
JP (1) JP4326566B2 (fr)
KR (1) KR100875497B1 (fr)
CN (1) CN100593633C (fr)
BR (1) BRPI0419147B1 (fr)
TW (1) TWI276737B (fr)
WO (1) WO2006070442A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2006080054A1 (ja) * 2005-01-26 2008-06-19 川崎重工業株式会社 ガスカロリ変動抑制装置、燃料ガス供給設備、ガスタービン設備およびボイラー設備
JP2013119818A (ja) * 2011-12-08 2013-06-17 Mitsubishi Heavy Ind Ltd ガスタービン設備
JP2013204582A (ja) * 2012-03-29 2013-10-07 Chugoku Electric Power Co Inc:The カロリー測定装置
EP2333280A3 (fr) * 2009-11-30 2014-05-21 General Electric Company Procédés de contrôle de mélange de carburant
RU2602214C2 (ru) * 2010-11-30 2016-11-10 Сименс Акциенгезелльшафт Способ эксплуатации стационарной газовой турбины, устройство для регулирования работы газовой турбины и электростанция
EP3571443B1 (fr) 2018-10-05 2020-12-02 Sensirion AG Dispositif de régulation d'un taux de mélange d'un mélange gazeux

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6742778B2 (ja) * 2016-03-29 2020-08-19 三菱重工業株式会社 ガスタービン及びその制御方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09317499A (ja) * 1996-05-28 1997-12-09 Kawasaki Steel Corp 高炉ガス専焼式ガスタービンの制御方法
JP2003114000A (ja) * 2001-10-05 2003-04-18 Yoshio Suetsugu 多段式ドライシールガスホルダ
JP2003293860A (ja) * 2002-04-05 2003-10-15 Takuma Co Ltd メタン発酵処理システムとメタン発酵処理方法
JP2004225117A (ja) * 2003-01-23 2004-08-12 Jfe Steel Kk 製鉄所副生ガスの利用方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09317499A (ja) * 1996-05-28 1997-12-09 Kawasaki Steel Corp 高炉ガス専焼式ガスタービンの制御方法
JP2003114000A (ja) * 2001-10-05 2003-04-18 Yoshio Suetsugu 多段式ドライシールガスホルダ
JP2003293860A (ja) * 2002-04-05 2003-10-15 Takuma Co Ltd メタン発酵処理システムとメタン発酵処理方法
JP2004225117A (ja) * 2003-01-23 2004-08-12 Jfe Steel Kk 製鉄所副生ガスの利用方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2006080054A1 (ja) * 2005-01-26 2008-06-19 川崎重工業株式会社 ガスカロリ変動抑制装置、燃料ガス供給設備、ガスタービン設備およびボイラー設備
JP4481330B2 (ja) * 2005-01-26 2010-06-16 川崎重工業株式会社 ガスカロリ変動抑制装置、燃料ガス供給設備、ガスタービン設備およびボイラー設備
EP2333280A3 (fr) * 2009-11-30 2014-05-21 General Electric Company Procédés de contrôle de mélange de carburant
US8833052B2 (en) 2009-11-30 2014-09-16 General Electric Company Systems and methods for controlling fuel mixing
RU2602214C2 (ru) * 2010-11-30 2016-11-10 Сименс Акциенгезелльшафт Способ эксплуатации стационарной газовой турбины, устройство для регулирования работы газовой турбины и электростанция
JP2013119818A (ja) * 2011-12-08 2013-06-17 Mitsubishi Heavy Ind Ltd ガスタービン設備
JP2013204582A (ja) * 2012-03-29 2013-10-07 Chugoku Electric Power Co Inc:The カロリー測定装置
EP3571443B1 (fr) 2018-10-05 2020-12-02 Sensirion AG Dispositif de régulation d'un taux de mélange d'un mélange gazeux
US12140309B2 (en) 2018-10-05 2024-11-12 Sensirion Ag Device for regulating a mixing ratio of a gas mixture

Also Published As

Publication number Publication date
TW200622092A (en) 2006-07-01
JPWO2006070442A1 (ja) 2008-06-12
CN100593633C (zh) 2010-03-10
KR100875497B1 (ko) 2008-12-22
BRPI0419147A (pt) 2007-12-11
CN101091044A (zh) 2007-12-19
BRPI0419147B1 (pt) 2015-12-01
TWI276737B (en) 2007-03-21
KR20070086401A (ko) 2007-08-27
JP4326566B2 (ja) 2009-09-09

Similar Documents

Publication Publication Date Title
TWI320071B (fr)
WO2006070442A1 (fr) Suppresseur de variation de calorie de gaz, installation d’alimentation en gaz combustible, installation de turbine a gaz et installation de chaudiere
CN100593672C (zh) 燃气轮机设备、燃料气体供给设备及燃料气体的发热量上升抑制方法
JP4503612B2 (ja) ガスタービン設備、低カロリガス供給設備および当該ガスのカロリ上昇抑制方法
JP4481330B2 (ja) ガスカロリ変動抑制装置、燃料ガス供給設備、ガスタービン設備およびボイラー設備
CN100575789C (zh) 气体发热量控制方法和气体发热量控制装置
JP4546482B2 (ja) ガスタービン設備、低カロリガス供給設備および当該ガスのカロリ上昇抑制方法
KR100912148B1 (ko) 가스 터빈 설비, 연료가스 공급 설비 및 연료가스의 칼로리상승 억제 방법
JP2007170245A (ja) ガスタービン設備、低カロリガス供給設備および当該ガスのカロリ上昇抑制方法
KR100906267B1 (ko) 가스 터빈 설비, 연료가스 공급 설비 및 연료가스의 칼로리상승 억제 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006550510

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 2152/KOLNP/2007

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 1020077013831

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 200480044726.X

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: PI0419147

Country of ref document: BR

122 Ep: pct application non-entry in european phase

Ref document number: 04807902

Country of ref document: EP

Kind code of ref document: A1

WWW Wipo information: withdrawn in national office

Ref document number: 4807902

Country of ref document: EP