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WO2018180549A1 - Procédé de construction d'installation industrielle - Google Patents

Procédé de construction d'installation industrielle Download PDF

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Publication number
WO2018180549A1
WO2018180549A1 PCT/JP2018/010262 JP2018010262W WO2018180549A1 WO 2018180549 A1 WO2018180549 A1 WO 2018180549A1 JP 2018010262 W JP2018010262 W JP 2018010262W WO 2018180549 A1 WO2018180549 A1 WO 2018180549A1
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WO
WIPO (PCT)
Prior art keywords
modules
plant
module
transport
refrigerant
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/JP2018/010262
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English (en)
Japanese (ja)
Inventor
武司 鍛治
小林　健一
誠 山形
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.)
Chiyoda Corp
Original Assignee
Chiyoda Corp
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Filing date
Publication date
Application filed by Chiyoda Corp filed Critical Chiyoda Corp
Publication of WO2018180549A1 publication Critical patent/WO2018180549A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
    • F25J1/0055—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream originating from an incorporated cascade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/008—Hydrocarbons
    • F25J1/0087—Propane; Propylene
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0211—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
    • F25J1/0214—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle
    • F25J1/0215—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle with one SCR cycle
    • F25J1/0216—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a dual level refrigeration cascade with at least one MCR cycle with one SCR cycle using a C3 pre-cooling cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0259—Modularity and arrangement of parts of the liquefaction unit and in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0292—Refrigerant compression by cold or cryogenic suction of the refrigerant gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0296—Removal of the heat of compression, e.g. within an inter- or afterstage-cooler against an ambient heat sink
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box

Definitions

  • the present invention relates to a plant construction method including a plurality of modules.
  • an acid gas removal facility that removes an acid gas contained in a raw material gas that is an object of liquefaction treatment and a moisture contained in the raw material gas are removed.
  • Work for assembling necessary equipment such as moisture removal equipment and compression equipment for refrigerants (mixed refrigerant, propane refrigerant, etc.) used for cooling and liquefaction of raw material gas is performed.
  • the plurality of modules constituting the LNG plant support a support body (supporting the load of each module) previously installed on the plant site when the LNG plant is constructed. It is common to be installed on the foundation).
  • a module is transported from a remote site to a plant site by a transport ship, and further transported to a predetermined position by a transport vehicle in the plant site.
  • the present invention has been devised in view of such problems of the prior art, and mainly provides a method for constructing a plant capable of suppressing the generation of a space dedicated to transportation for a plurality of modules in a plant site. Objective.
  • a method for constructing a plant including a plurality of modules, each of which supports the plurality of modules in a plurality of installation areas in the plant site respectively assigned to the plurality of modules.
  • a support body installation step of installing the support body in a state protruding upward from the ground, and a transport target module of the plurality of modules, from a predetermined entry position to the plant site, of the plurality of installation areas A transporting process for transporting to one of the allocated installation areas by one or more transport vehicles; and a fixing process for fixing the transport target module transported to the allocated installation area to the support in the allocated installation area.
  • the transport vehicle has a plurality of support bodies in the installation area other than the assigned installation area. The by passing a travel path, characterized by transporting the transport object module from the entry position to the allocation mounting region.
  • the transport vehicle obstructs the plurality of supports protruding upward from the ground by passing between the plurality of supports in the installation area other than the assigned installation area as a travel route.
  • the transport target module is transported from the entry position to the plant site to the assigned installation area, so that no dedicated transport space for the transport target module is required on the plant site. Can be suppressed.
  • pairs arranged respectively on the left and right of the travel path are defined by at least a part of the plurality of support bodies so as to define the travel path.
  • a support row formed is formed.
  • a plurality of the transport vehicles are used for transporting the transport target module, and in the support body installation step, the plurality of travel routes are defined respectively.
  • a plurality of pairs of support body rows arranged on the left and right of each travel route are formed.
  • the fourth aspect of the present invention is characterized in that the pair of support body rows includes two linear support body rows arranged in parallel to each other.
  • the plurality of supports are arranged so that the intervals thereof are on the same line with respect to the module group of the same system in a direction orthogonal to the traveling direction of the transport vehicle. To do.
  • the sixth aspect of the present invention is characterized in that, in the plurality of modules, a maximum length in a traveling direction of the transport vehicle is larger than a maximum length in a direction orthogonal to the travel direction of the transport vehicle.
  • the length of the module in the direction orthogonal to the traveling direction of the transport vehicle is reduced, it is possible to more effectively suppress the generation of a space dedicated for transport for a plurality of modules.
  • the plurality of modules include a plurality of modules that respectively use the travel routes that do not overlap with each other in the transporting process, and each of the travel routes extends in the same direction. It is characterized by that.
  • the plant is a natural gas liquefaction plant.
  • At least one of the plurality of modules includes an acid gas removal facility that removes acid gas contained in the source gas, and a moisture removal facility that removes moisture contained in the source gas. And at least one of liquefaction equipment for liquefying the source gas using a refrigerant.
  • an LNG plant including a plurality of facilities (an acid gas removal facility, a moisture removal facility, a liquefaction facility, etc.), it is possible to suppress the generation of space dedicated to transportation for a plurality of modules.
  • the plant comprises a natural gas liquefaction plant
  • the module belonging to at least one of the plurality of modules is an acid that removes acid gas contained in the raw material gas.
  • the one of the plurality of modules A module belonging to another series different from the series includes a refrigerant compression facility for liquefying the raw material gas.
  • the module including the refrigerant compression facility (refrigerant compressor) is separated from the module including the acid gas removal facility, the moisture removal facility, the liquefaction facility, and the like, thereby suppressing an increase in the size of each module.
  • refrigerant compression facility refrigerant compressor
  • FIG. 1 is a schematic configuration diagram of a natural gas liquefaction plant (hereinafter referred to as “LNG plant”) 1 according to an embodiment of the present invention.
  • LNG plant natural gas liquefaction plant
  • FIG. 1 each piping which conveys source gas etc. is typically shown with the line containing the arrow.
  • the LNG plant 1 is composed of a plurality of facilities that cool a raw material gas (natural gas that is a target of liquefaction treatment) to generate liquefied natural gas (LNG).
  • the LNG plant 1 includes an absorption tower 2 that removes the acidic gas contained in the raw material gas, a regeneration tower 3 that regenerates the absorption liquid (solution) used in the absorption tower 2, and moisture contained in the raw material gas.
  • Gas-liquid separation device 4 for separating, moisture removing devices 5A to 5C for removing moisture contained in the source gas, and source gas from which unnecessary components (acid gas, heavy component, moisture, mercury, etc.) have been removed
  • a liquefying device 6 for liquefying is provided.
  • the absorption tower 2 consists of a tray tower provided with shelves at regular intervals inside the tower, and is removed by countercurrent-contacting the absorbent with the raw material gas supplied via the raw material gas transport pipe L1.
  • the target component here, acid gas and heavy component
  • the raw material gas from which the component to be removed is removed in the absorption tower 2 is sent from the top of the tower to the gas-liquid separation device 4 through the raw material gas transport pipe L2.
  • the absorbing liquid that has absorbed the component to be removed is sent to the regeneration tower 3.
  • the regeneration tower 3 is provided with a shelf similar to the absorption tower 2, and the removal target component is separated from the absorption liquid by treating the absorption liquid at a predetermined pressure and temperature.
  • the absorption liquid from the absorption tower 2 is supplied from the upper part of the tower via the absorption liquid transport pipe L3 and falls in the tower.
  • a reboiler 11 serving as a heat source for the regeneration tower 3 is provided in the circulation pipe L4 connected to the bottom of the regeneration tower 3. Thereby, a part of the absorption liquid discharged from the tower bottom is heated by heat exchange with the heat medium supplied to the reboiler 11 from the outside, and then circulates in the regeneration tower 3.
  • An acid gas component such as carbon dioxide is recovered from the discharge pipe L5 connected to the top of the regeneration tower 3.
  • a heavy component (heavy hydrocarbon such as benzene) is recovered from the discharge pipe L6 branched from the circulation pipe L4 of the regeneration tower 3.
  • the absorption liquid from which the component to be removed has been separated in the regeneration tower 3 is supplied again to the upper part of the absorption tower 2 via the absorption liquid transport pipe L7.
  • a heat exchanger 12 is provided between the absorbing liquid transport pipe L3 and the absorbing liquid transport pipe L7, and the lower temperature absorbing liquid flowing through the absorbing liquid transport pipe L3 absorbs the higher temperature than flowing through the absorbing liquid transport pipe L7. After being heated by heat exchange with the liquid, it is supplied to the regeneration tower 3, while the absorbent flowing through the absorbent transport pipe L7 is cooled by the heat exchange and then supplied to the absorption tower 2.
  • the absorption liquid is a known chemical absorbent that absorbs acidic gas components such as carbon dioxide, hydrogen sulfide, mercaptan, and carbonyl sulfide based on a chemical reaction, and heavy hydrocarbons such as benzene, toluene, and xylene contained in the source gas. It is a mixed absorbent containing a known physical absorbent that physically absorbs (heavy content) in a predetermined ratio. Further, the absorbing liquid contains water at a predetermined ratio.
  • the absorption tower 2 and the regeneration tower 3 and the devices and equipment attached thereto constitute an acid gas removal facility 61 that removes the acid gas contained in the raw material gas.
  • the acid gas removal equipment 61 as long as the acid gas contained in the raw material gas can be removed, not only the absorption tower 2 and the regeneration tower 3 described above, but also other known apparatuses and devices are employed. Is possible.
  • the raw material gas removed in the absorption tower 2 until the component to be removed becomes a predetermined concentration or less is cooled by the precooling heat exchanger 15 provided on the raw material gas transport pipe L2, and then sent to the gas-liquid separation device 4. .
  • Propane refrigerant is used for cooling in the precooling heat exchanger 15, whereby moisture in the raw material gas is condensed and discharged to the outside as a liquid phase component in the gas-liquid separator 4 from the discharge pipe L ⁇ b> 8.
  • the source gas separated as the gas phase component in the gas-liquid separator 4 is supplied to the plurality of moisture removing devices 5A to 5C via the source gas transport pipe L9.
  • the water removing devices 5A to 5C are composed of a dehydration tower filled with a known moisture absorbent that physically adsorbs water.
  • the dehydration process is performed until the moisture in the raw material gas is reduced to a predetermined ratio or less in order to prevent troubles caused by freezing in the subsequent liquefaction process.
  • the source gas from which moisture has been removed in the moisture removing devices 5A to 5C is supplied to the liquefying device 6 after being cooled by the precooling heat exchanger 21 using a propane refrigerant provided on the source gas transport pipe L10.
  • the moisture removing devices 5A to 5C and the devices and equipment attached thereto constitute a moisture removing equipment 62 that removes moisture contained in the raw material gas.
  • the moisture removal equipment 62 is not limited to the above-described moisture removal devices 5A to 5C as long as moisture contained in the source gas can be removed, and other known devices and equipment can be employed. is there.
  • the liquefying device 6 is a main heat exchanger that liquefies the raw material gas from which unnecessary components such as acid gas and heavy components are removed by heat exchange with the mixed refrigerant.
  • the liquefying device 6 includes a spool-type heat exchanger in which a heat transfer tube (tube bundle) for flowing a raw material gas and a mixed refrigerant is wound in a coil shape, and is housed in a shell, but is not limited thereto.
  • Other known configurations such as plate fin heat exchange can be used as long as liquefaction of the source gas is possible.
  • the low-temperature (about ⁇ 162 ° C.) raw material gas liquefied by cooling in the liquefying device 6 is sent to a storage LNG tank (not shown) via the LNG transport pipe L11.
  • the raw material gas supplied to the liquefying device 6 may be boosted by a known compressor or the like.
  • the liquefying device 6 and the devices and equipment attached thereto constitute a liquefying facility 63 (see FIG. 2) for liquefying the source gas.
  • the liquefaction facility 63 is not limited to the above-described liquefaction facility 63 and the like as long as moisture contained in the raw material gas can be removed, but other known devices and equipment (for example, plate fin heat exchangers) It is possible to adopt.
  • the Propane pre-cooled Mixed Refrigerant method is adopted in which the raw material gas is cooled (precooled) with propane refrigerant and then cooled (liquefied) using a mixed refrigerant as described above.
  • the LNG plant 1 is provided with a propane precooling system facility for cooling with a propane refrigerant and a mixed refrigerant system facility for cooling with a mixed refrigerant.
  • the propane refrigerant compressed in the refrigerant compressor 31 is cooled and condensed in the plurality of air-cooled heat exchangers 32 and 33 via the refrigerant transport pipe L21 and then introduced into the refrigerant tank 34. Thereafter, the propane refrigerant is introduced into the air-cooled heat exchanger 35 and further cooled, precooling heat exchangers 15 and 21 for precooling the raw material gas, and heat exchangers 55 and 56 for cooling the mixed refrigerant described later. , 57, etc. (herein, collectively referred to as propane refrigerant consumption destination 36), it is used for cooling the source gas or the mixed refrigerant.
  • the propane refrigerant discharged from the propane refrigerant consumption destination 36 is introduced into a gas-liquid separator (here, a knockout drum) 37, and the vapor phase component separated therein is again supplied to the refrigerant compressor 31 via the refrigerant transport pipe L22. It is circulated in.
  • Such circulation of the propane refrigerant is a plurality of pipes (herein, collectively referred to as a first refrigerant circulation pipe L15) including the above-described refrigerant transport pipes L21 and L22 that connect the devices and devices in the propane precooling system. ).
  • a first refrigerant circulation pipe L15 including the above-described refrigerant transport pipes L21 and L22 that connect the devices and devices in the propane precooling system.
  • the propane precooling system equipment is shown independently of other devices.
  • the mixed refrigerant is boosted by the first-stage refrigerant compressor 51 and then cooled by the air-cooled heat exchanger 52, and after being boosted by the second-stage refrigerant compressor 53, the air-cooled type Cooled by the heat exchanger 54. Thereafter, the mixed refrigerant is introduced into a series of cooler groups via the refrigerant transport pipe L24, and is further supplied by high-pressure, medium-pressure, and low-pressure propane refrigerants in the refrigerant heat exchangers 55, 56, and 57 that constitute the cooler group. After being cooled, it is introduced into the refrigerant separator 58.
  • each component is again introduced into the liquefying device 6 and used for cooling the raw material gas.
  • the mixed refrigerant discharged from the liquefying device 6 is introduced into a gas-liquid separation device (here, a knockout drum) 59, and the separated vapor phase component is again supplied to the first stage refrigerant compressor via the refrigerant transport pipe L25. 51 is circulated.
  • Such a circulation of the mixed refrigerant is a plurality of pipes (herein collectively referred to as a second refrigerant circulation pipe L16) including the above-described refrigerant transport pipes L24 and L25 connecting between the devices and devices in the mixed refrigerant system. ).
  • the pre-cooling heat exchangers 15 and 21 and the heat exchangers 55, 56, and 57 and the devices and equipment attached thereto constitute a mixed refrigerant / raw material gas cooling facility 64 that removes moisture contained in the raw material gas.
  • the mixed refrigerant / raw material gas cooling facility 64 is not limited to the above-described precooling heat exchangers 15, 21 and heat exchangers 55, 56, 57, etc. as long as at least one of the mixed refrigerant and the raw material gas can be cooled. Other known devices and equipment can be employed.
  • the propane precooling system refrigerant compressor 31 and the mixed refrigerant system refrigerant compressors 51 and 53, and the devices and equipment attached thereto, are refrigerants used for cooling or liquefying the source gas (here, propane refrigerant, mixed A compression facility for compressing the refrigerant is configured.
  • a first refrigerant compression facility 65 and a second refrigerant compression facility 66 are provided as compression facilities.
  • the compression equipment is not limited to the above-described refrigerant compressors 31, 51, 53, etc., as long as the refrigerant used for cooling or liquefying the source gas can be compressed, and other known devices and equipment are employed. Is possible.
  • the configuration (type, number, and arrangement of each device and equipment) of the refrigerant compressor 31, the air-cooled heat exchangers 32, 33, and 35 and the propane refrigerant consumer 36 in the propane precooling system can be changed as appropriate. It is.
  • the configurations of the refrigerant compressors 51 and 53, the air-cooled heat exchangers 52 and 54, the refrigerant heat exchangers 55, 56, and 57 in the mixed refrigerant system can be changed as appropriate.
  • each of the precooling heat exchanger 21 and the air-cooling heat exchangers 32, 33, 35, 52, and 54 is represented by one symbol, but the pre-cooling heat exchanger 21 and the air-cooling heat exchanger are displayed.
  • Each of 32, 33, 35, 52, 54 may be constituted by a plurality of heat exchangers.
  • the refrigerant compressors 31, 51, and 53 can also be configured by a plurality of compressors.
  • the mixed refrigerant a hydrocarbon mixture containing methane, ethane and propane with nitrogen added is used, but not limited to this, as long as the desired cooling capacity can be secured, other known components may be used. Can be adopted. Further, the cooling method of the source gas is not limited to the one shown here, but a cascade method in which individual refrigeration cycles are constituted by a plurality of refrigerants (methane, ethane, propane, etc.) having different boiling points, and mixed refrigerants such as ethane and propane.
  • refrigerants methane, ethane, propane, etc.
  • DMR Double Mixed Refrigerant
  • MFC Mated Fluid Cascade
  • the raw material gas processed in the LNG plant 1 is not particularly limited.
  • natural gas obtained from a pressurized state collected from shale gas, tight sand gas, coal bed methane, or the like is used as a raw material. It can be used as a gas.
  • a method for supplying the raw material gas to the LNG plant not only the supply from a gas field or the like via a pipe but also a gas once stored in a storage tank or the like may be supplied.
  • source gas in the present specification does not mean that the gas is strictly in a gaseous state, but refers to an object (including a midway of processing) to be liquefied in the LNG plant 1.
  • the LNG plant 1 is not limited to the above-described apparatus but may be provided with other known equipment in order to remove unnecessary components in the raw material gas before the raw material gas is supplied to the liquefying device 6.
  • a mercury removal facility such as a fixed bed type adsorption tower filled with activated carbon
  • a heavy component Liquefied by heavy component removal equipment (expander, scrub column, compressor, rectifier, etc.) and liquefaction device 6 for removing relatively high freezing point components such as benzene and C5 + hydrocarbons
  • a nitrogen removal facility for adjusting the amount of nitrogen contained, and a heat transfer fluid heated by exhaust heat from the gas turbine for driving the compressor are supplied to each facility in the LNG plant 1
  • a gas turbine facility including a fuel gas supply device for adjusting the temperature and pressure of the fuel gas such as a heat
  • FIG. 2 is a plan view showing an arrangement example of main equipment in the LNG plant 1 shown in FIG.
  • the acidic gas removal equipment 61 shown in FIG. 1 is omitted for convenience of explanation.
  • FIG. 2 for the sake of convenience, the configuration of the LNG plant 1 will be described based on the front-rear direction and the left-right direction indicated by arrows in the figure.
  • the plant site 70 is provided with first to sixth modules 71 to 76 including various facilities and piping necessary for the LNG plant 1 as the main part of the LNG plant 1.
  • the first module 71 transports a fluid such as a raw material gas, various components separated from the raw material gas, LNG, a refrigerant for cooling the raw material gas, and the like.
  • a fluid such as a raw material gas, various components separated from the raw material gas, LNG, a refrigerant for cooling the raw material gas, and the like.
  • This is mainly composed of a piping portion 71a including a piping rack in which the piping is provided.
  • the second module 72 relates to a left-side piping part 72a including a piping rack in which piping connected mainly to the downstream side of the piping part 71a of the first module 71, and the moisture removing equipment 62 (see FIG. 1). It is mainly comprised from the right side installation part 72b containing an apparatus and an apparatus.
  • the third module 73 includes a left-side pipe portion 73a including a pipe rack in which pipes connected mainly to the downstream side of the pipe portion 72a of the second module 72, and a mixed refrigerant / raw material gas cooling facility 64 (see FIG. 1) and the right equipment section 73b including the apparatus and equipment.
  • the fourth module 74 is a device related to the left piping unit 74a including a piping rack in which piping connected mainly to the downstream side of the piping unit 73a of the third module 73 and the liquefaction facility 63 (see FIG. 1). And the right equipment part 74b including the equipment.
  • the fifth module 75 and the sixth module 76 are arranged on the left side of the third module 73 and the fourth module 74, respectively, and a first refrigerant compression facility 65 and a first refrigerant that compress refrigerant used for cooling or liquefying the source gas. It is mainly composed of equipment parts 75b and 76b including two refrigerant compression equipment 66 (see FIG. 1).
  • the first refrigerant compression facility 65 and the second refrigerant compression facility 66 include a propane precooling system refrigerant compressor 31, a mixed refrigerant system refrigerant compressors 51 and 53, and devices and equipment attached thereto. It can be arranged regardless of the system.
  • the “module” in this embodiment does not necessarily include the water removal equipment 62, the liquefaction equipment 63, the mixed refrigerant / raw material gas cooling equipment 64, the first refrigerant compression equipment 65, and the second refrigerant compression equipment 66. However, what is necessary is just to include the apparatus and apparatus which comprise the LNG plant 1 at least.
  • each of the pipe portions 71a to 74a main pipes having relatively large diameters such as a raw material gas transport pipe for transporting the raw material gas and an LNG transport pipe for transporting the liquefied LNG are mainly disposed.
  • a refrigerant in this case, including a plurality of air-cooled heat exchangers 32, 33, 52, 54, etc. (see FIG. 1) disposed adjacent to each other in the front-rear direction at the uppermost part of each of the piping parts 71a-74a.
  • An air-cooled heat exchanger group 69 for propane refrigerant (mixed refrigerant) is disposed.
  • a frame that supports devices and equipment related to each equipment is provided so as to be connected to a piping rack.
  • the first to fourth modules 71-74 constitute a module group of the first system 78 arranged so as to form a line in a substantially straight line along the virtual axis line X1 extending in the front-rear direction.
  • Each piping section 71a-74a is in a state of being connected between adjacent modules.
  • Each of the piping portions 71a-74a includes an edge portion extending substantially linearly along the virtual axis line X1 on one end side (here, the left side) of the first to fourth modules 71-74.
  • the first to fourth modules 71-74 are provided so that the widths in the front-rear direction are substantially the same.
  • the second to fourth modules 72-74 are provided so that the left and right widths are substantially the same.
  • the fifth and sixth modules 75 and 76 constitute a module group of the second system 79 arranged so as to be linearly arranged along the virtual axis X2 parallel to the virtual axis X1.
  • the fifth and sixth modules 75 and 76 are separated from each other, and the pipes of the first refrigerant compression facility 65 and the second refrigerant compression facility 66 are the third module 73 and the fourth module 74, respectively. Connected to other pipes.
  • the fifth and sixth modules 75 and 76 are provided so that the width in the front-rear direction and the width in the left-right direction are substantially the same.
  • first to sixth modules 71 to 76 are not necessarily limited to those including only the apparatuses and devices related to the corresponding facilities as described above, and some of the devices and apparatuses related to other facilities corresponding to the adjacent modules. May be included. Further, the number and arrangement of modules in the LNG plant 1 can be appropriately changed as long as the LNG plant 1 can be realized.
  • FIGS. 4A and 4B are explanatory views showing the outline of the transport process and the installation process of the module 73, respectively.
  • FIG. 8 is a side view showing transport vehicles 80A-80D (hereinafter collectively referred to as “transport vehicle 80” when they are not required to be distinguished) used for transporting the module 73;
  • the first to sixth modules 71 to 76 are manufactured (assembled) at a remote place (not shown) and then appropriately transported to the plant site 70 by a known transportation means such as a ship.
  • a foundation construction for installing a plurality of supports (that is, a foundation for supporting the load of each module 71-76) 90, and a transport target module (FIG. 1) among the first to sixth modules 71-76 3A--in FIG. 3C, the module 73) is moved from the predetermined entry position 70a to the plant site 70 to the assigned installation area (installation area 83 in FIGS. 3A-3C) of the installation area 81-86.
  • the transporting process transported by 80D and the transport target module transported to the assigned installation area are transferred to the support 90 in the assigned installation area.
  • each support 90 is installed in a state of protruding upward from the ground (ground) 111 as shown in FIGS. 4A and 4B.
  • a well-known structure can be employ
  • the foundation work only needs to be completed at least before the start of transportation of the first to sixth modules 71-76 in the plant site 70, and can be performed individually for the first system 78 and the second system 79. It is.
  • the plurality of supports 90 are arranged in a row so as to extend along the front-rear direction (traveling direction of the transport vehicles 80A-80D).
  • the support rows 91-95 are configured.
  • the support rows 91-93 are linearly parallel to each other, and are constituted by a plurality of supports 90 in all the installation areas 81-84 related to the first system 78.
  • the support rows 94 and 95 are linearly parallel to each other, and are constituted by a plurality of supports 90 in some installation regions 82-84.
  • the plurality of supports 90 are respectively arranged in a plurality of support rows 96-99 extending in the front-rear direction.
  • the support body rows 96 to 99 are constituted by a plurality of support bodies 90 in the installation areas 85 and 86 related to the second system 79.
  • the modules 73 are transported by transport vehicles 80A-80D arranged in four rows.
  • the modules 71 and 72 located on the far side (downstream side) in the transport direction of the module 73 are already installed in the installation areas 81 and 82.
  • the conveyance process (installation process is also the same) of the module 73 demonstrated here is applicable similarly to the other modules including those modules 71 and 72.
  • the transport vehicles 80A-80D start transporting the module 73 from the entry position 70a of the plant site 70 toward the traveling direction (rearward) indicated by the arrow while supporting the bottom of the module 73 (see FIG. 4A).
  • a known self-propelled multi-axis transport vehicle SPMT: Self-
  • SPMT Self-
  • Propelled (Module) Transporter can be used as the transport vehicle 80.
  • four transport vehicles 80A-80D are used for transporting one module 73, but the number of transport vehicles to be used can be changed as appropriate.
  • the bottom of the module 73 is provided with a plurality of legs 100 (see FIG. 4B) extending downward from the module main body at positions corresponding to the respective supports 90 in the installation region 83.
  • the plurality of leg portions 100 constitute a plurality of leg portion rows 101-105 that form a row along the front-rear direction (the traveling direction of the transport vehicles 80A-80D).
  • the transport vehicles 80A-80D use the traveling path between the plurality of supports 90 in the installation area 84 and the installation area 83 at the transport destination that are located on the upstream side in the transport direction of the module 73.
  • the module 73 is transported from the entry position 70a to the installation area 83 of the transport destination.
  • the transport vehicles 80A-80D pass between the plurality of supports 90 in the installation area 81-86 other than the assigned installation area as a travel path, so that the plurality of supports in a state of protruding upward from the ground.
  • the transport target module is transported from the entry position 70a to the plant site 70 to the assigned installation area, so that no dedicated space for transporting the transport target module is required in the plant site 70. It is possible to suppress the generation of a space dedicated to transportation for the modules 71-74 (here, the space on the right side or the left side of the plant site 70).
  • the traveling route of the transport vehicles 80A-80D is defined by the plurality of supports 90 (or at least a part of the supports 90) constituting the support rows 91-95.
  • the travel path of the transport vehicle 80A is defined as an area (ground or paved surface) between the support rows 91 and 92
  • the travel path of the transport vehicle 80B is defined as an area between the support rows 92 and 93.
  • a travel route of the transport vehicle 80C is defined as an area between the support body rows 93 and 94
  • a travel path of the transport vehicle 80D is defined as an area between the support body rows 94 and 95.
  • the supporting bodies 90 can be efficiently installed in a wider range while securing the travel routes of the plurality of transport vehicles 80A-80D in the plurality of installation regions 81-86.
  • the plurality of supports 90 constituting the support rows 91-95 are spaced apart from the first system module group in the direction (left-right direction) perpendicular to the traveling direction of the transport vehicles 80A-80D. It arrange
  • the entry position 70a to the plant site 70 is set on one end side (here, the front side) in the longitudinal direction of the LNG plant 1, but it is necessary to make the same for all the modules 71-74 of the first system 78. It is sufficient that at least two or more modules are the same. Moreover, in this embodiment, although the same approach position 70a was set about the 1st system
  • the maximum length in the traveling direction (front-rear direction) of the transport vehicles 80A-80D is set larger than the maximum length in the direction (left-right direction) orthogonal to the traveling direction of the transport vehicles 80A-80D.
  • the length of the modules 71-74 in the direction orthogonal to the traveling direction of the transport vehicles 80A-80D is reduced, so that the generation of the space dedicated to transport for the plurality of modules 71-74 can be more effectively suppressed. Is possible.
  • the number of connections between the modules in the longitudinal direction of the LNG plant 1 (the transport direction of each module) can be reduced, and the construction site ( It is possible to improve the efficiency of work on the plant site 70).
  • FIGS. 6A to 6C are explanatory diagrams showing how the modules are transported in the second system 79.
  • the three trucks 80A to 80C first have the module 75 positioned on the far side (downstream side) in the transporting direction. Transported. It should be noted that the transporting process of the module 75 described here (the same applies to the installation process) is applicable to the module 76 as well.
  • the transport vehicles 80A-80C start transporting the module 73 from the entry position 70a of the plant site 70 toward the traveling direction (rearward) indicated by the arrow while supporting the bottom of the module 75. Thereafter, as shown in FIG. 6B, the transport vehicles 80A-80C use the travel path between the plurality of support bodies 90 in the installation area 86 positioned more upstream in the transport direction of the module 75 and the installation area 85 of the transport destination. By passing, the module 75 is transported from the entry position 70a toward the installation area 85 of the transport destination.
  • the traveling route of the transport vehicles 80A-80C is defined by the plurality of supports 90 (or at least a part of the supports 90) constituting the support row 96-99.
  • the travel path of the transport vehicle 80A is defined as an area (ground) between the support rows 96 and 97
  • the travel path of the transport vehicle 80B is defined as an area between the support rows 97 and 98
  • the travel route of the transport vehicle 80C is defined as an area between 98 and 99.
  • the plurality of supports 90 constituting the support rows 96-99 are spaced apart from each other in the second group of modules in the direction (left-right direction) orthogonal to the traveling direction of the transport vehicles 80A-80C. Are arranged on the same line.
  • FIG. 7 is a plan view showing a modification of the module arrangement shown in FIG. 2, and FIG. 8 is an explanatory view showing an arrangement example of the supports in the installation area of each module shown in FIG. 7 and 8, the same reference numerals are given to the same components as those in the above example.
  • the widths in the left-right direction are set to be substantially the same in the modules 72-74.
  • the present invention is not limited to this.
  • the widths in the front-rear direction of the modules 72-74 may be set to different sizes.
  • the sizes of the equipment units 72b-74b included therein can be changed as appropriate.
  • the shape (plan view) of the module is substantially rectangular.
  • a shape other than the rectangular shape is possible as in the module 72 in FIG.
  • a plurality of support bodies 90 are arranged in a row along the front-rear direction in the installation area 81-84. 191 to 196 are provided.
  • the support rows 91-93 are linearly parallel to each other, and are constituted by a plurality of supports 90 in all the installation areas 81-84 related to the first system 78.
  • the support rows 94 and 95 are linearly parallel to each other, and are constituted by a plurality of supports 90 in some installation regions 82-84.
  • the support row 96 has a linear shape substantially parallel to the support row 91-95, and is constituted by a plurality of supports 90 in a part of the installation region 83.

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  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
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Abstract

Le problème décrit par la présente invention consiste à supprimer l'attribution d'espace dédié au transport pour une pluralité de modules au niveau d'un site d'installation industrielle. La solution selon la présente invention comprend : une étape d'installation de corps de support permettant d'installer, dans l'état de saillie vers le haut à partir du sol (11), une pluralité de corps de support (90) permettant de supporter respectivement une pluralité de modules (71-76), dans une pluralité de régions de montage (81-86) qui sont attribuées respectivement à la pluralité de modules (71-76), et qui sont situées à l'intérieur d'un site d'installation industrielle (70) ; une étape de transport permettant de transporter un module de sujet de transport par au moins un véhicule de transport (80) d'un emplacement prédéterminé (70a) pour une entrée dans le site d'installation industrielle (70) jusqu'à une région de montage attribuée ; et une étape de montage permettant de fixer, sur un corps de support (90) dans la région de montage attribuée, le module de sujet de transport transporté vers la région de montage attribuée, le véhicule de transport (80) transportant, dans l'étape de transport, le module de sujet de transport à partir de l'emplacement (70a) pour l'entrée dans la région de montage attribuée en passant par un trajet de déplacement s'étendant entre des corps de support (90) dans des régions de montage situées à l'extérieur de la région de montage attribuée.
PCT/JP2018/010262 2017-03-29 2018-03-15 Procédé de construction d'installation industrielle Ceased WO2018180549A1 (fr)

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Cited By (1)

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US20220170228A1 (en) * 2019-07-11 2022-06-02 Jgc Corporation Method for manufacturing foundation

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WO2025094260A1 (fr) * 2023-10-31 2025-05-08 日揮グローバル株式会社 Usine et procédé de fabrication d'une usine
WO2025203249A1 (fr) * 2024-03-26 2025-10-02 日揮グローバル株式会社 Procédé de construction de fondation, procédé d'installation de module, fondation pour module végétal et élément de protection

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US20070094946A1 (en) * 2005-09-30 2007-05-03 Ohio Transmission Corporation Modular industrial equipment facility
JP2016204966A (ja) * 2015-04-22 2016-12-08 クリーンエナジーファクトリー株式会社 太陽光発電プラント施工法と、この施工法に用いるソーラーストリング搬送用コンテナ

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US20070094946A1 (en) * 2005-09-30 2007-05-03 Ohio Transmission Corporation Modular industrial equipment facility
JP2016204966A (ja) * 2015-04-22 2016-12-08 クリーンエナジーファクトリー株式会社 太陽光発電プラント施工法と、この施工法に用いるソーラーストリング搬送用コンテナ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220170228A1 (en) * 2019-07-11 2022-06-02 Jgc Corporation Method for manufacturing foundation

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