CN1069125C - Circulating hot-blast stove - Google Patents
Circulating hot-blast stove Download PDFInfo
- Publication number
- CN1069125C CN1069125C CN 98101917 CN98101917A CN1069125C CN 1069125 C CN1069125 C CN 1069125C CN 98101917 CN98101917 CN 98101917 CN 98101917 A CN98101917 A CN 98101917A CN 1069125 C CN1069125 C CN 1069125C
- Authority
- CN
- China
- Prior art keywords
- condenser
- unicom
- air
- furnace body
- air preheater
- 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.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 239000003245 coal Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 235000013311 vegetables Nutrition 0.000 abstract description 2
- 241001465754 Metazoa Species 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The present invention belongs to an air heating furnace separating air from heating media by forced circulation, which is suitable for a drying field and hot blast for the heating of pit mouths of coal mines, the heating of vegetable greenhouses and the heating of domestic animals. The present invention is characterized in that a heat exchanger below a furnace body is communicated with a condenser (24) above the furnace body to form a pipeline closed-circuit circulation system of the media, a smoke gas inlet (4) of a furnace chamber is communicated with the heat exchanger (5), a smoke box, an air preheater (10) and a smoke gas outlet (13), and an air inlet (19) is communicated with the air preheater (10), a central cylinder (12), the condenser (24) and an air outlet. The present invention has the advantages of reducing the working temperature of materials of the furnace body and increasing the service life of the furnace body.
Description
The invention belongs to a kind of hot-blast stove, the air-heating furnace that specifically a kind of forced circulation is separated air and heat medium.
Existing hot-blast stove generally adopts the heat pipe-type tube wall, the structure of steel plate interlayer heat exchange.Because the operating temperature of hot-blast stove is higher, even adopt the inwall of expensive heat-resisting steels processing, its life-span only is one to three year.In order to address the above problem, Chinese patent CN2116174U discloses a kind of novel Hot Blast Furnace With Heat Pipes, the heated portion of heat pipe is placed in the burner hearth, the cooling segment of heat pipe is placed in the air compartment, but the weak point that this type of hot-blast stove exists is in use to occur the booster phenomenon easily, it is stifled that ash appears in heat pipe easily, problems such as dew point corrosion.
The purpose of this invention is to provide a kind of long service life, and energy-efficient, and stable hot-blast stove conducts heat.
The present invention is achieved in that a kind of circulating hot-blast stove, comprises parts such as body of heater, air preheater, condenser, and principal character is:
A, the burner hearth arranged around has the heat exchanger of UNICOM's upper header and lower collecting box below body of heater, is located at the condenser of body of heater top by tedge and down-comer 11 UNICOMs, and the pipeline of described condenser connects header and lower collecting box, forms the pipeline closed circuit circulatory system;
The flue of the gas approach 4 UNICOM's Tube Sheet of Heat Exchanger pipeline outer walls in the b, burner hearth and inboard wall of furnace body composition, UNICOM's lower smoke box, air preheater, and with middle smoke box UNICOM, UNICOM's upper smoke box again, the side of upper smoke box is provided with exhanst gas outlet;
C, central tube are located at the middle position of the air preheater of body of heater top and condenser and vertical, the pipeline outer wall and the inboard wall of furnace body of central tube UNICOM air preheater, and upper and lower tube sheet is formed the air channel, one side of air preheater is provided with air inlet, the top of central tube and the pipeline outer wall of condenser and inboard wall of furnace body are formed the air channel, are provided with hot-blast outlet in a side of condenser.
Heat exchanger and condenser are made of the pipeline of fin shape.Be provided with dividing plate in the upper smoke box.
Compare with background technology, the present invention has following beneficial effect.
1, the metal material of having avoided the direct dry combustion method at high temperature of steel to cause destroys, heat exchanger effectively absorbs the heat of interior hyperthermia radiation of burner hearth and high-temperature flue gas, heat absorption exchange by flow media in managing makes material therefor be in lower serviceability temperature all the time, has prolonged the service life of body of heater.
2, pass through the absorption of medium in the heat exchanger, exothermic process, heat medium and heated medium have formed stable duty, and furnace body temperature has avoided crossing the generation of cold superheating phenomenon, has formed stable diabatic process.
3, overcome the in use incident booster phenomenon of Hot Blast Furnace With Heat Pipes.
4, bearing capacity height of the present invention can use under pressurized or normal pressure.
Fig. 1 is a structural representation of the present invention.
Be described further below in conjunction with embodiment.
Coal and bavin enter heat exchanger 5 at the high-temperature flue gas that burner hearth 3 internal combustion produce through gas approach 4, medium heat convection in heat exchanger 5 pipe outward turnings are circled and managed, enter air preheater 10 by lower smoke box 7, flue gas enters upper smoke box 17 in preheater 10 pipes, dividing plate retaining in upper smoke box 17 is back into going in air preheater 10 pipes, smoke box 9 in entering enters upper smoke box 17 in the pipe by air preheater 10 once more, enters chimney row in the air through exhanst gas outlet 13.The cold wind that air blast is sent here is at first outside air inlet 19 enters the pipe of air preheater 10, rotate a circle and manage in flue gas carry out forced-convection heat transfer, wind through preheater 10 rises to condenser 24 by central tube 12 again, along the circumferential direction flow out from central tube, in condenser 24, rotate a circle, continue to carry out heat convection, discharge, use for oven dry, heating by hot-blast outlet 15 with the interior medium of pipe.Lower furnace body heat exchanger 5 is by absorbing the heat of high-temperature flue gas in the burner hearth 3, make medium temperature rising or vaporization in the pipe, and enter in condenser 24, the upper header 16 by tedge 18, carry out heat exchange with the outer cold wind of pipe, cooled medium enters in the body of heater lower collecting box 22 by down-comer 11 through condenser lower collecting box 14, absorbs the heat of burner hearth 3 high-temperature flue gas again, do circulation next time, the closed circuit that has formed sealing like this absorbs heat, the course of work of heat release.Flue gas process the road through on be provided with cleaning door 8,20,23, remove dust everywhere respectively, guarantee the heat exchange effect of equipment.Body of heater is provided with heat-insulation layer 6, heat insulation layer 25, and the below of burner hearth 3 is a fire door 2.
Heat-conducting medium of the present invention can be worked under pressurized or under the normal pressure, and heat can utilize the working condition of latent heat or sensible heat.When under pressurized, utilizing latent heat to conduct heat, on hot-blast stove evaporator overhead condenser 24, upper header 16, establish safety device and Pressure gauge, divide into thermometer and liquid level gauge controlling organization at lower furnace body, and make the circulatory system be in the vacuum work state at normal temperatures, to guarantee stable diabatic process.
The present invention can change solid fuels such as fire coal into nozzle that combustion gas or fuel oil are used with fire bars 1, and the thermometer controlling organization can be used to operate oil circuit or gas circuit valve.
The present invention can be used for drying field, the near coal-mine heating in colliery, green house of vegetables heating, beastly poultry heating hot blast.
Claims (3)
1, a kind of circulating hot-blast stove comprises parts such as body of heater, air preheater, condenser, it is characterized in that:
A, burner hearth (3) arranged around has the heat exchanger (5) of UNICOM's upper header (21) and lower collecting box (22) below body of heater, be located at the condenser (24) of body of heater top by tedge (18) and down-comer (11) UNICOM, the pipeline of described condenser (24) connects header (16) and lower collecting box (14), forms the pipeline closed circuit circulatory system;
The flue that gas approach (4) UNICOM heat exchanger (5) pipeline outer wall in b, the burner hearth and inboard wall of furnace body are formed, UNICOM's lower smoke box (7), air preheater (10), and with middle smoke box (9) UNICOM, UNICOM's upper smoke box (17) again, the side of upper smoke box (17) is provided with exhanst gas outlet (13);
The middle position that c, central tube (12) are located at the air preheater (10) of body of heater top and condenser (24) is also vertical, the pipeline outer wall and the inboard wall of furnace body of central tube (12) UNICOM's air preheater (10), and upper and lower tube sheet is formed the air channel, one side of air preheater (10) is provided with air inlet (19), the pipeline outer wall of the top of central tube (12) and condenser (24) and inboard wall of furnace body are formed the air channel, are provided with hot-blast outlet (15) in a side of condenser (24).
2, circulating hot-blast stove according to claim 1 is characterized in that the pipeline making with the fin shape of heat exchanger (5) and condenser (24).
3, circulating hot-blast stove according to claim 1 is characterized in that being provided with dividing plate in the upper smoke box (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101917 CN1069125C (en) | 1998-05-18 | 1998-05-18 | Circulating hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101917 CN1069125C (en) | 1998-05-18 | 1998-05-18 | Circulating hot-blast stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1204032A CN1204032A (en) | 1999-01-06 |
| CN1069125C true CN1069125C (en) | 2001-08-01 |
Family
ID=5217015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98101917 Expired - Fee Related CN1069125C (en) | 1998-05-18 | 1998-05-18 | Circulating hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1069125C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424423C (en) * | 2006-07-19 | 2008-10-08 | 刘勇 | Indoor and outdoor air double-circulating purification central heating apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721100B (en) * | 2012-06-28 | 2014-07-02 | 刘明生 | Directly-heated type air conditioning device capable of purifying gas by double circulation of indoor and outdoor air |
| CN104949329B (en) * | 2014-03-27 | 2017-07-28 | 江苏清涵环保科技有限公司 | Vacuum insulation deep freeze refrigeration plant vacuumizes drying room |
-
1998
- 1998-05-18 CN CN 98101917 patent/CN1069125C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424423C (en) * | 2006-07-19 | 2008-10-08 | 刘勇 | Indoor and outdoor air double-circulating purification central heating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1204032A (en) | 1999-01-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |