JP6792698B2 - 天然ガスの液化のための分割された冷媒圧縮機 - Google Patents
天然ガスの液化のための分割された冷媒圧縮機 Download PDFInfo
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- 239000003507 refrigerant Substances 0.000 title claims description 73
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 64
- 239000003345 natural gas Substances 0.000 title claims description 34
- 239000007789 gas Substances 0.000 claims description 204
- 239000012530 fluid Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 108
- 235000013849 propane Nutrition 0.000 description 54
- 239000001294 propane Substances 0.000 description 53
- 239000003949 liquefied natural gas Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
- F04D29/5833—Cooling at least part of the working fluid in a heat exchanger flow schemes and regulation thereto
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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.
- F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
- F25J1/0283—Gas turbine as the prime mechanical driver
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- 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
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- 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.
- F25J1/0294—Multiple compressor casings/strings in parallel, e.g. split arrangement
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- 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.
- F25J1/0295—Shifting of the compression load between different cooling stages within a refrigerant cycle or within a cascade refrigeration system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/12—Kind or type gaseous, i.e. compressible
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- 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
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
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Description
異なる圧力レベルの第1の複数のガス流を第1の圧縮機装置の第1の複数のガス入口に送るステップと、
異なる圧力レベルの第2の複数のガス流を第2の圧縮機装置の第2の複数のガス入口に送るステップと、
第1の圧縮機装置の吐出部から部分的に圧縮されたガスを第2の圧縮機装置の第2の複数のガス入口の1つに送るステップと、
第2の圧縮機装置のガス出口から完全に圧縮されたガス流を送るステップと
を含む。
圧縮機システムから圧縮された冷媒流をヒートシンクに送って、それから熱を除去するステップと、
ヒートシンクからの冷媒流を、第1の複数の部分流および第2の複数の部分流に分けるステップと、
各部分流をそれぞれの圧力レベルで膨張させ、それによって、各部分流は、他の部分流とは異なる圧力レベルに膨張されるステップと、
部分流によって第2の冷媒、および天然ガスラインを流れる天然ガスのうちの少なくとも1つから熱を除去するステップと、
第1の複数の部分流を圧縮機システムの第1の圧縮機装置のそれぞれの複数の第1のガス入口に導入するステップ、ならびに、第2の複数の部分流を圧縮機システムの第2の圧縮機装置のそれぞれの複数の第2のガス入口に導入するステップと、
第1の圧縮機装置によって圧縮された冷媒を第2の圧縮機装置の複数の第2のガス入口の1つに導入するステップと
を含む。
3 プロパン予冷却セクション
5 混合冷媒セクション
7 主ライン
7A 天然ガス入口
7B 液化天然ガス出口
9A 混合冷媒圧縮機
9B 混合冷媒圧縮機
9C 混合冷媒圧縮機
11 駆動機
13 駆動機
15 主深冷熱交換器(MCHE)
17A 予冷却熱交換器
17B 予冷却熱交換器
17C 予冷却熱交換器
17D 予冷却熱交換器
19A 予冷却熱交換器
19B 予冷却熱交換器
19C 予冷却熱交換器
19D 予冷却熱交換器
21 プロパン圧縮機システム
22A ガス入口
22B ガス入口
22C ガス入口
22D ガス入口
23 出口
25 熱交換器
27 凝縮器
29 熱交換器
31A 膨張弁
31B 膨張弁
31C 膨張弁
31D 膨張弁
33A 膨張弁
33B 膨張弁
33C 膨張弁
33D 膨張弁
51 第1の圧縮機装置
51.1 第1の圧縮機段
51.2 第2の圧縮機段
52 吐出部
53 第2の圧縮機装置
53.1 第3の圧縮機段
53.2 第4の圧縮機段
61 圧縮機ケーシング
62 ケーシング
63 圧縮機ケーシング
65 駆動機
65A 駆動機
65B 駆動機
67 軸
67A 軸
67B 軸
69 ギヤボックス
121 圧縮機システム
122A ガス入口
122B ガス入口
122C ガス入口
122D ガス入口
123 出口
141 圧縮機
141A 圧縮機
141B 圧縮機
I1 第1のガス入口
I2 第2のガス入口
I3 第3のガス入口
I4 第4のガス入口
Claims (13)
- 第1の冷媒を圧縮するための圧縮機システム(21)であって、
第1のガス圧力レベルの前記第1の冷媒を受け取るように構成された第1のガス入口(22C)と、前記第1のガス入口(22C)より下流に位置し、第2のガス圧力レベルの前記第1の冷媒を受け取るように構成された第2のガス入口(22B)と、前記第2のガス入口(22B)より下流に位置するガス吐出部(52)と、を有する第1の直通圧縮機装置(51)と、
第3のガス圧力レベルの前記第1の冷媒を受け取るように構成された第3のガス入口(22D)と、前記第3のガス入口(22D)より下流に位置し、第4のガス圧力レベルの前記第1の冷媒を受け取るように構成された第4のガス入口(22A)と、前記第4のガス入口(22A)より下流に位置するガス出口(23)と、を有する第2の圧縮機装置(53)と、
を備え、
前記第1の直通圧縮機装置(51)の前記ガス吐出部(52)が、前記第2の圧縮機装置(53)の前記第4のガス入口(22A)に流体結合され、
前記第4のガス圧力レベルが前記第2のガス圧力レベルより高く、前記第2のガス圧力レベルが前記第1のガス圧力レベルより高く、前記第1のガス圧力レベルが前記第3のガス圧力レベルより高く、
前記第1の直通圧縮機装置(51)が前記第1のガス圧力レベルにおいて単一の前記第1の冷媒を受け取り、前記第2のガス圧力レベルにおいて単一の前記第1の冷媒を受け取るように構成されている、圧縮機システム(21)。 - 前記第2の圧縮機装置(51)は、ガス入口として、前記第3のガス入口(22D)と前記第4のガス入口(22A)のみを有する、請求項1記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)が、単一のインペラを有する第1の圧縮機段と、単一のインペラを有する第2の圧縮機段を有し、
前記第2の圧縮機装置(51)が、単一のインペラを有する第3の圧縮機段と、二つのインペラを有する第4の圧縮機段を有する、請求項1または2記載の圧縮機システム(21)。 - 前記第1の直通圧縮機装置(51)が第1のケーシング(61)に収められ、前記第2の圧縮機装置(53)が第2のケーシング(63)に収められた、請求項1から3のいずれか1項記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)と前記第2の圧縮機装置(53)とが共通のケーシング(62)に収められた、請求項1から3のいずれか1項記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)に含まれるインペラからなる第1のインペラ群と前記第2の圧縮機装置(53)に含まれるインペラからなる第2のインペラ群、とが直列に、背中合せ配置で配置された、請求項5記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)と前記第2の圧縮機装置(53)とが、実質的に同じ回転速度で回転するように配置および制御された、請求項1乃至6のいずれか1項記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)と前記第2の圧縮機装置(53)とが異なる回転速度で回転するように配置および制御された、請求項1乃至6のいずれか1項記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)と前記第2の圧縮機装置(53)との間に配置されたギヤボックス(69)をさらに備えた、請求項8記載の圧縮機システム(21)。
- 前記第1の直通圧縮機装置(51)が第1の駆動機(65A)によって駆動され、前記第2の圧縮機装置(53)が第2の駆動機(65B)によって駆動される、請求項8記載の圧縮機システム(21)。
- 天然ガスライン(7)及び
請求項1乃至10のいずれか1項に記載の圧縮機システム(21)と、前記圧縮機システム(21)によって送られた第1の冷媒から熱を排出するための高温熱交換器装置と、前記第1の冷媒が、第2の冷媒および前記天然ガスライン(7)を流れる天然ガスのうちの少なくとも1つと熱交換関係にあって、該少なくとも1つから熱を除去する、低温熱交換器装置と、を有する少なくとも第1の冷媒回路と、
を備え、
前記低温熱交換器装置が、前記圧縮機システムの(21)の各ガス入口にそれぞれ流体結合される熱交換器を有する、天然ガス液化用冷媒システム。 - 第1のガス入口(22C)と、前記第1のガス入口(22C)より下流に位置する第2のガス入口(22B)と、前記第2のガス入口(22B)より下流に位置するガス吐出部(52)と、を有する第1の直通圧縮機装置(51)と、
第3のガス入口(22D)と、前記第3のガス入口(22D)より下流に位置する第4のガス入口(22A)と、前記第4のガス入口(22A)より下流に位置するガス出口(23)と、を有する第2の圧縮機装置(53)と、を用いて第1の冷媒を圧縮するための方法であって、
第1のガス圧力レベルの単一の前記第1の冷媒のガス流を前記第1のガス入口(22C)に導入するステップと、
第2のガス圧力レベルの単一の前記第1の冷媒のガス流を前記第2のガス入口(22B)に導入するステップと、
第3のガス圧力レベルの前記第1の冷媒のガス流を前記第3のガス入口(22D)に導入するステップと、
第4のガス圧力レベルの前記第1の冷媒のガス流を前記第4のガス入口(22A)に導入するステップと、
前記前記第1の直通圧縮機装置(51)の前記ガス吐出部(52)からの前記第1の冷媒のガス流を前記第2の圧縮機装置(53)の前記第4のガス入口(22A)に導入するステップと、を有し、
前記第4のガス圧力レベルが前記第2のガス圧力レベルより高く、前記第2のガス圧力レベルが前記第1のガス圧力レベルより高く、前記第1のガス圧力レベルが前記第3のガス圧力レベルより高い、ガス流体を圧縮するための方法。 - 請求項1乃至10のいずれか1項記載の圧縮機システム(21)によって圧縮された第1の冷媒の冷媒流から熱を除去するステップと、
前記冷媒流を、第1の部分流と第2の部分流と第3の部分流と第4の部分流に分けるステップと、
各々の前記部分流をそれぞれの圧力レベルで膨張させるステップと、
前記部分流によって第2の冷媒および天然ガスラインを流れる天然ガスのうちの少なくとも1つから熱を除去するステップと、
前記第1の部分流と前記第2の部分流とを前記圧縮機システム(21)の第1の直通圧縮機装置(51)の第1のガス入口と第2のガス入口にそれぞれ導入するステップと、前記第3の部分流と前記第4の部分流とを前記圧縮機システム(21)の第2の圧縮機装置(53)の第3のガス入口と第4のガス入口にそれぞれ導入するステップと、
前記第1の直通圧縮機装置(51)によって圧縮された前記第1の冷媒を前記第2の圧縮機装置(53)の前記第4のガス入口(22A)に導入するステップと、
を含む天然ガス液化方法。
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