JP2019517638A - LNG plant including two centrifugal compressors and a compression train including two centrifugal compressors - Google Patents
LNG plant including two centrifugal compressors and a compression train including two centrifugal compressors Download PDFInfo
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- 230000006835 compression Effects 0.000 title claims abstract description 53
- 238000007906 compression Methods 0.000 title claims abstract description 53
- 238000004891 communication Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 29
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003507 refrigerant Substances 0.000 claims description 11
- 239000001294 propane Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims 1
- 239000003949 liquefied natural gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 229940112112 capex Drugs 0.000 description 1
- FEBLZLNTKCEFIT-VSXGLTOVSA-N fluocinolone acetonide Chemical compound C1([C@@H](F)C2)=CC(=O)C=C[C@]1(C)[C@]1(F)[C@@H]2[C@@H]2C[C@H]3OC(C)(C)O[C@@]3(C(=O)CO)[C@@]2(C)C[C@@H]1O FEBLZLNTKCEFIT-VSXGLTOVSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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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
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
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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
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
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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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- 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
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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
- F25J1/003—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
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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
- 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.
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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.
- F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
- F25J1/0287—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings including an electrical motor
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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.
- F25J1/029—Mechanically coupling of different refrigerant compressors in a cascade refrigeration system to a common 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.
- F25J1/0294—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
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
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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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/12—Particular process parameters like pressure, temperature, ratios
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
圧縮列（２００）は、エンジン（２１０）と、エンジン（２１０）によって駆動される第１の遠心圧縮機（２２０）と、エンジン（２１０）によって駆動される第２の遠心圧縮機（２３０）とを備えており、第１の遠心圧縮機（２２０）は、１つのケースの内部に収容され、第２の遠心圧縮機（２３０）は、１つのケースの内部に収容され、第１の遠心圧縮機（２２０）は、特に４０よりも大きい高分子量のガスの配管に連通した第１の入口を有し、第２の遠心圧縮機（２３０）は、特に２０〜３０の間の低分子量のガスの配管に連通した第２の入口を有し、第２の遠心圧縮機（２３０）は、１０：１よりも高く、好ましくは１５：１よりも高い圧縮比をもたらすように構成されている。【選択図】図２The compression train (200) comprises an engine (210), a first centrifugal compressor (220) driven by the engine (210), and a second centrifugal compressor (230) driven by the engine (210). The first centrifugal compressor (220) is housed inside one case, and the second centrifugal compressor (230) is housed inside one case, the first centrifugal compression The machine (220) has a first inlet in communication with a pipe of high molecular weight gas, in particular greater than 40, and the second centrifugal compressor (230), in particular, a low molecular weight gas between 20 and 30 And the second centrifugal compressor (230) is configured to provide a compression ratio higher than 10: 1, preferably higher than 15: 1. [Selected figure] Figure 2
Description
本明細書に開示される主題の実施形態は、２つの遠心圧縮機を含む圧縮列、および２つの遠心圧縮機を含むＬＮＧ（＝液化天然ガス）プラントに対応する。 Embodiments of the subject matter disclosed herein correspond to a compression train including two centrifugal compressors, and an LNG (= liquefied natural gas) plant including two centrifugal compressors.
図１は、先行技術によるＬＮＧプラント１００、特にＡＰＣＩプロセス、すなわち１つの純冷媒を使用する第１のサイクルおよび１つの混合冷媒を使用する第２のサイクルによる周知の液化技術を実施するプラントの概略図を示している。 FIG. 1 schematically shows a prior art LNG plant 100, in particular the APCI process, ie a plant implementing a known liquefaction technique with a first cycle using one pure refrigerant and a second cycle using one mixed refrigerant. Figure is shown.
プラント１００は、第１の共通シャフトを有する遠心圧縮機１３０および遠心圧縮機１６０による第１の圧縮列と、第２の共通シャフトを有する遠心圧縮機１４０および遠心圧縮機１５０による第２の圧縮列とで構成される。圧縮機１３０は、プロパンを圧縮するために使用され、圧縮機１３０の入口１３１が、プロパンの配管に連通し、圧縮機１３０の出口１３２が、圧縮されたプロパンをもたらす。圧縮機１４０、１５０、および１６０は、混合冷媒ガスを圧縮するために使用され、圧縮機１４０の入口１４１が、混合冷媒の配管に連通し、圧縮機１４０の出口１４２が、圧縮機１５０の入口１５１に連通し、圧縮機１５０の出口１５２が、圧縮機１６０の入口１６１に連通し、圧縮機１６０の出口１６２が、圧縮された混合冷媒をもたらす。 The plant 100 includes a centrifugal compressor 130 having a first common shaft and a first compression train using the centrifugal compressor 160, and a centrifugal compressor 140 having a second common shaft and a second compression train using the centrifugal compressor 150. And consists of The compressor 130 is used to compress propane, the inlet 131 of the compressor 130 being in communication with the propane piping, and the outlet 132 of the compressor 130 providing compressed propane. The compressors 140, 150, and 160 are used to compress mixed refrigerant gas, the inlet 141 of the compressor 140 is in communication with the mixed refrigerant piping, and the outlet 142 of the compressor 140 is an inlet of the compressor 150. In communication with 151, the outlet 152 of the compressor 150 communicates with the inlet 161 of the compressor 160, and the outlet 162 of the compressor 160 provides the compressed mixed refrigerant.
第１の圧縮列は、第１のエンジン１１０によって駆動され、第２の圧縮列は、第２のエンジン１２０によって駆動される。第１のエンジン１１０および第２のエンジン１２０は、低速エンジンであり、例えば１５００ＲＰＭの速度で回転する電気エンジンや、例えば３０００または３６００ＲＰＭの速度で回転するガスタービンなどであってよい。 The first compression train is driven by a first engine 110, and the second compression train is driven by a second engine 120. The first engine 110 and the second engine 120 are low speed engines, and may be, for example, an electric engine rotating at a speed of 1500 RPM, or a gas turbine rotating at a speed of 3000 or 3600 RPM, for example.
圧縮機１３０、１４０、１５０、および１６０の各々は、別個のケースの内部に収容される。 Each of the compressors 130, 140, 150, and 160 is housed inside a separate case.
プロパンのための第１の圧縮設備と、いわゆる「混合冷媒」（すなわち、異なる分子量を有する炭化水素の混合物）のための第２の圧縮設備とが存在するＬＮＧプラントが、国際公開第２００８／０１５２２４号パンフレットから知られている。図２の典型的なプロセスによれば、混合冷媒は、１８．５の圧縮を被る。国際公開第２００８／０１５２２４号パンフレットの優先日において、混合冷媒の圧縮は、典型的には３つの別個のケースの内部の３つの圧縮機によって実行されており、これは、「Ｔｈｅ ４．５ ＭＭＴＢＡ ＬＮＧ Ｔｒａｉｎ−Ａ Ｃｏｓｔ Ｅｆｆｅｃｔｉｖｅ Ｄｅｓｉｇｎ」という題名のＰｅｒｅｚによる論文（国際公開第２００８／０１５２２４号パンフレットによって引用されている）の図２および図３に示されている技術的解決策を反映する国際公開第２００８／０１５２２４号パンフレットの技術的解決策にも当てはまり、したがって、国際公開第２００８／０１５２２４号パンフレットの図１および図２におけるブロック１２２が、３つのケース内の３つの圧縮機に対応することに、注意すべきである。さらに、国際公開第２００８／０１５２２４号パンフレットによれば、第１の圧縮設備および第２の圧縮設備は、同じ速度で回転（すなわち、ギアボックスが設けられていない）する一方で、これらの圧縮設備の出力比は、自由に選択可能である。 An LNG plant in which there is a first compression plant for propane and a second compression plant for so-called "mixed refrigerants" (ie a mixture of hydrocarbons having different molecular weights) is disclosed in WO 2008/015224. It is known from the pamphlet. According to the exemplary process of FIG. 2, the mixed refrigerant undergoes a compression of 18.5. On the priority date of WO 2008/015224, compression of the mixed refrigerant is typically performed by the three compressors inside of three separate cases, which is described in “The 4.5 MMTBA An international publication reflecting the technical solution shown in Figures 2 and 3 of a paper by Perez (referred to by WO 2008/015224) entitled "LNG Train-A Cost Effective Design". The technical solution of the 2008/015224 pamphlet also applies, so that block 122 in Figures 1 and 2 of WO 2008/015224 pamphlet corresponds to three compressors in three cases, You should be careful. Furthermore, according to WO 2008/015224, the first compression facility and the second compression facility rotate at the same speed (i.e. no gearbox is provided) while these compression facilities The output ratio of is freely selectable.
先行技術の技術的解決策と比べて圧縮機ケースの数を減らしたＬＮＧプラントを提供することが望ましいと考えられ、これは、設置面積の観点からも有利である。 It would be desirable to provide an LNG plant with a reduced number of compressor cases as compared to the prior art technical solutions, which is also advantageous in terms of footprint.
一般に、ＬＮＧプラントの効率、利用可能性、およびモジュール性を高め、ＬＮＧプラントのＣＡＰＥＸを低減することが有利である。 In general, it is advantageous to increase the efficiency, availability, and modularity of the LNG plant and to reduce the CAPEX of the LNG plant.
上述の目的および利点は、特にＡＰＣＩプロセスを実施するＬＮＧプラントに当てはまる。 The above objects and advantages apply, in particular, to an LNG plant implementing the APCI process.
本明細書において開示される主題の第１の実施形態は、圧縮列に関する。 A first embodiment of the subject matter disclosed herein relates to compression sequences.
このような第１の実施形態によれば、圧縮列は、エンジンと、エンジンによって駆動される第１の遠心圧縮機と、エンジンによって駆動される第２の遠心圧縮機とを備え、第１の遠心圧縮機は、１つのケースの内部に収容され、第２の遠心圧縮機は、１つのケースの内部に収容され、第１の遠心圧縮機は、特に４０よりも大きい高分子量のガスの配管に連通した第１の入口を有し、第２の遠心圧縮機は、特に２０〜３０の間の低分子量のガスの配管に連通した第２の入口を有し、第２の遠心圧縮機は、１０：１よりも高く、好ましくは１５：１よりも高い圧縮比をもたらすように構成される。 According to such first embodiment, the compression train comprises an engine, a first centrifugal compressor driven by the engine, and a second centrifugal compressor driven by the engine. The centrifugal compressor is housed inside one case, the second centrifugal compressor is housed inside one case, and the first centrifugal compressor is in particular a high molecular weight gas piping larger than 40 And the second centrifugal compressor has a second inlet in communication with the low molecular weight gas piping, in particular between 20 and 30, and the second centrifugal compressor has a second inlet. , Configured to provide a compression ratio higher than 10: 1, preferably higher than 15: 1.
本明細書において開示される主題の第２の実施形態は、ＬＮＧプラントに関する。 A second embodiment of the subject matter disclosed herein relates to an LNG plant.
このような第２の実施形態によれば、ＬＮＧプラントは、圧縮列を備え、圧縮列は、エンジンと、エンジンによって駆動される第１の遠心圧縮機と、エンジンによって駆動される第２の遠心圧縮機とを備え、第１の遠心圧縮機は１つのケースの内部に収容され、第２の遠心圧縮機は１つのケースの内部に収容され、第１の遠心圧縮機は、高分子量ガスのライン、特に４０より高いラインに流体的に接続された第１の入口と、第２の遠心圧縮機は、低分子量ガスのライン、特に２０と３０との間に流体的に接続された第２の入口と、第２の遠心圧縮機は、１０：１より高い、好ましくは１５：１より高い圧縮比を提供するように構成される。 According to such a second embodiment, the LNG plant comprises a compression train, the compression train comprising an engine, a first centrifugal compressor driven by the engine, and a second centrifugal driven by the engine A first centrifugal compressor is housed inside one case, a second centrifugal compressor is housed inside one case, and the first centrifugal compressor is made of high molecular weight gas A first inlet fluidly connected to a line, in particular a line higher than 40, and a second centrifugal compressor, a second fluidly connected between the low molecular weight gas line, in particular between 20 and 30 And the second centrifugal compressor are configured to provide a compression ratio higher than 10: 1, preferably higher than 15: 1.
本明細書に組み込まれ、本明細書の一体の一部分を構成する添付の図面は、本発明の典型的な実施形態を示し、詳細な説明と併せて、これらの実施形態を説明する。 The accompanying drawings, which are incorporated in and constitute an integral part of the specification, illustrate exemplary embodiments of the present invention and, together with the detailed description, explain these embodiments.
以下の典型的な実施形態の説明は、添付の図面を参照する。 The following description of the exemplary embodiments refers to the accompanying drawings.
以下の説明は、本発明を限定するものではない。代わりに、本発明の範囲は、添付の特許請求の範囲によって定義される。 The following description does not limit the present invention. Instead, the scope of the present invention is defined by the appended claims.
本明細書の全体を通して、「或る実施形態」または「一実施形態」への言及は、一実施形態に関連して説明される特定の特徴、構造、または特性が、本開示の主題の少なくとも１つの実施形態に含まれることを意味する。したがって、本明細書の全体のさまざまな場所における「或る実施形態において」または「一実施形態において」という表現の出現は、必ずしも同じ実施形態を指しているわけではない。さらに、特定の特徴、構造、または特性を、１つ以上の実施形態において、任意の適切なやり方で組み合わせることが可能である。 Throughout the specification, references to "an embodiment" or "an embodiment" mean that certain features, structures or characteristics described in connection with one embodiment are at least one of the subject matter of the present disclosure. It is meant to be included in one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
以下で（その数学的な意味に従って）、用語「組」は、１つ以上のアイテムからなる群を意味する。 In the following (according to its mathematical meaning), the term "set" means a group of one or more items.
図２の圧縮列２００は、エンジン２１０と、エンジン２１０によって駆動される第１の遠心（すなわち、遠心流）圧縮機２２０と、エンジン２１０によって駆動される第２の遠心（すなわち、遠心流）圧縮機２３０とを備える。第１の遠心圧縮機２２０は、１つのケースの内部に収容されており、第２の遠心圧縮機２３０は、１つのケースの内部に収容されている。第１の遠心圧縮機２２０は、特に４０よりも大きい高分子量のガスの配管に連通した第１の入口を有し、第２の遠心圧縮機２３０は、特に２０〜３０の間の低分子量のガスの配管に連通した第２の入口を有する。したがって、圧縮機２２０によって処理された後に第１の出口２２２にもたらされるガスは、圧縮機２３０によって処理された後に第２の出口２３２にもたらされるガスと、異なる。 The compression train 200 of FIG. 2 includes an engine 210, a first centrifugal (ie, centrifugal flow) compressor 220 driven by the engine 210, and a second centrifugal (ie centrifugal flow) compression driven by the engine 210. And a machine 230. The first centrifugal compressor 220 is accommodated in one case, and the second centrifugal compressor 230 is accommodated in one case. The first centrifugal compressor 220 has a first inlet in communication with a pipe of high molecular weight gas, in particular greater than 40, and the second centrifugal compressor 230, in particular, has a low molecular weight between 20 and 30. It has a second inlet in communication with the gas line. Thus, the gas provided to the first outlet 222 after being processed by the compressor 220 is different from the gas provided to the second outlet 232 after being processed by the compressor 230.
第２の遠心圧縮機２３０は、高圧縮比の圧縮機であり、特に１０：１よりも高く、好ましくは１５：１よりも高い圧縮比をもたらすように構成される。 The second centrifugal compressor 230 is a high compression ratio compressor, and is specifically configured to provide a compression ratio higher than 10: 1, preferably higher than 15: 1.
図２に示した圧縮列と同一または同様の列は、ＡＰＣＩプロセスを実施するために圧縮されたプロパンおよび圧縮された混合冷媒の両方をもたらすように構成される場合に、特に好都合である。この場合、
上述の高分子量のガスは、プロパンであり、
上述の低分子量のガスは、混合冷媒ガスであり、特にプロパンと、エチレンまたはエタンと、メタンとの混合物である。
A row identical or similar to the compressed row shown in FIG. 2 is particularly advantageous when configured to provide both compressed propane and compressed mixed refrigerant to perform the APCI process. in this case,
The high molecular weight gas mentioned above is propane,
The low molecular weight gases mentioned above are mixed refrigerant gases, in particular a mixture of propane, ethylene or ethane and methane.
図２の列は、遠心圧縮機を２つだけしか備えていない。 The row of FIG. 2 has only two centrifugal compressors.
図２は、２組の実施形態を示している。第１組によれば、シャフトが１つ存在し、第２の圧縮機２３０が第１の圧縮機２２０に直接機械的に接続される。第２組によれば、２つのシャフトが存在し、第２の圧縮機２３０がギアボックス２５０を介して第１の圧縮機２２０に間接的に機械的に接続される。図２において、ギアボックスは、随意であるため破線で描かれている。 FIG. 2 shows two sets of embodiments. According to the first set, there is one shaft and the second compressor 230 is directly mechanically connected to the first compressor 220. According to the second set, there are two shafts, and the second compressor 230 is mechanically connected indirectly to the first compressor 220 via the gearbox 250. In FIG. 2, the gearbox is drawn in dashed lines as it is optional.
以下は、第１組の実施形態に当てはまる。 The following applies to the first set of embodiments.
圧縮列は、ただ１つのシャフトを有する。 The compression train has only one shaft.
エンジン２１０は、電気モータあるいは蒸気タービンまたはガスタービンであってよく、特に航空転用ガスタービンであってよい。 The engine 210 may be an electric motor or a steam or gas turbine, in particular an aero gas turbine.
エンジン２１０は、好ましくは５０００〜９０００ＲＰＭの範囲内の最大回転速度、より好ましくは６０００〜９０００ＲＰＭの範囲内の最大回転速度を有する高速エンジンである。 Engine 210 is preferably a high speed engine having a maximum rotational speed in the range of 5000-9000 RPM, more preferably in the range of 6000-9000 RPM.
以下は、第２組の実施形態に当てはまる。 The following applies to the second set of embodiments.
圧縮列は、２つのシャフトを有する。 The compression train has two shafts.
第２の遠心圧縮機２３０は、好ましくは２：１より高い伝達比を有するギアボックス２５０を介して第１の遠心圧縮機２２０に機械的に接続される。 The second centrifugal compressor 230 is mechanically connected to the first centrifugal compressor 220 via a gearbox 250 which preferably has a transmission ratio higher than 2: 1.
エンジン２１０は、電気モータあるいは蒸気タービンまたはガスタービンであり、特に航空転用ガスタービンである。 The engine 210 is an electric motor or a steam turbine or a gas turbine, in particular an aeronautical gas turbine.
エンジン２１０は、好ましくは１５００〜５０００ＲＰＭの範囲内の最大回転速度、より好ましくは１５００〜４０００ＲＰＭの範囲内の最大回転速度を有する低速エンジンである。 Engine 210 is preferably a low speed engine having a maximum rotational speed in the range of 1500 to 5000 RPM, more preferably in the range of 1500 to 4000 RPM.
以下は、両方の組の実施形態に当てはまる。 The following applies to both sets of embodiments.
トレインは、図２におけるエンジン２４０などの補助エンジン、好ましくは電気モータを、さらに含むことができる。図２において、エンジン２４０は、例えば第２の圧縮機２３０に直接接続されている。 The train can further include an auxiliary engine, such as engine 240 in FIG. 2, preferably an electric motor. In FIG. 2, the engine 240 is directly connected to, for example, the second compressor 230.
補助エンジンを、トレインの始動時に使用することができ、さらには／あるいは圧縮機によって吸収される出力が特定のしきい値を超えるときに主エンジンを補助するために使用できることに注意すべきであり、そのような補助エンジンは、「ヘルパー」と呼ばれることがある。 It should be noted that an auxiliary engine can be used at start up of the train and / or can be used to assist the main engine when the power absorbed by the compressor exceeds a certain threshold. Such an auxiliary engine is sometimes called a "helper".
図３の実施形態によれば、高圧縮比の圧縮機２３０は、高圧縮比の遠心（すなわち、遠心流）圧縮機であり、第１組のインペラ（すなわち、１つ以上のインペラ）と、第１組のインペラの下流または上流（好ましくは、下流）に配置された第２組のインペラ（すなわち、１つ以上のインペラ）とを含む。 According to the embodiment of FIG. 3, the high compression ratio compressor 230 is a high compression ratio centrifugal (ie, centrifugal flow) compressor and comprises a first set of impellers (ie, one or more impellers); And a second set of impellers (ie, one or more impellers) disposed downstream or upstream (preferably, downstream) of the first set of impellers.
図３に示されるとおり、第１組は、２つのインペラ３１１および３１２を含むが、１から例えば２０までの任意の数のインペラが適切である。この実施形態によれば、第２組は、３つのインペラ３２１、３２２、および３２３を含むが、１から例えば２０までの任意の数のインペラが適切である。第１組のインペラ３１１および３１２は、遠心式であり、シュラウドを有していない。図３に示されるように、第２組のインペラ３２１、３２２、および３２３は、遠心式であり、シュラウドを有する。第１組および第２組の少なくともインペラ３１１、３１２、３２１、３２２、および３２３は、１つのケース３００の内部に収容される。第１組および第２組のインペラ３１１、３１２、３２１、３２２、および３２３は、機械的な接続によって互いに結合している。 As shown in FIG. 3, the first set comprises two impellers 311 and 312, but any number of impellers from 1 to 20, for example, is suitable. According to this embodiment, the second set comprises three impellers 321, 322 and 323, but any number of impellers from 1 to 20, for example, is suitable. The first set of impellers 311 and 312 is centrifugal and has no shroud. As shown in FIG. 3, the second set of impellers 321, 322, and 323 are centrifugal and have a shroud. The first and second sets of at least the impellers 311, 312, 321, 322, and 323 are housed in one case 300. The first and second sets of impellers 311, 312, 321, 322, and 323 are coupled to one another by mechanical connections.
別の実施形態によれば、すべてのインペラが、遠心式であり、シュラウドを有する。 According to another embodiment, all the impellers are centrifugal and have a shroud.
軸流圧縮段の組は、例えば３つまたは４つなど、２つより多くてよい。 The set of axial compression stages may be more than two, for example three or four.
１つ以上の補助入口が存在してもよい。 There may be one or more auxiliary inlets.
１つ以上の補助出口が存在してもよい。 There may be one or more auxiliary outlets.
好都合には、図３の実施形態のように、前記高圧縮比の遠心圧縮機のインペラの少なくともいくつかが、互いに積み重ねられ、Ｈｉｒｔｈ継手によって機械的に結合させられる。積み重ねられて結合したインペラは、タイロッドによって一体に締め付けられ、このようにして、きわめて安定かつ信頼できる機械的接続が達成される。各々のインペラは、例えばそれぞれの回転軸に貫通孔を有し、タイロッドを通すことができるように構成される。ロータは、インペラが積み重ねられて一体に締め付けられたときに実現される。 Advantageously, as in the embodiment of FIG. 3, at least some of the high compression ratio centrifugal compressor impellers are stacked together and mechanically coupled by a Hirth joint. The stacked and joined impellers are clamped together by tie rods, and in this way a very stable and reliable mechanical connection is achieved. Each impeller has a through hole, for example, at each rotation axis, and is configured to be able to pass a tie rod. The rotor is realized when the impellers are stacked and clamped together.
図３の実施形態においては、２組のすべてのインペラ３１１、３１２、３２１、３２２、３２３が、積み重ねられ、Ｈｉｒｔｈ継手３４０Ａ、３４０Ｂ、３４０Ｃ、３４０Ｄによって結合し、タイロッド３３０によって一体に締め付けられている。 In the embodiment of FIG. 3, all two sets of impellers 311, 312, 321, 322, 323 are stacked, joined by Hirth joints 340A, 340B, 340C, 340D and clamped together by tie rods 330. .
圧縮機２３０は、主入口３０１（図２においては２３１と標記されている）、主出口３０２（図２においては２３２と標記されている）、ならびに主入口３０１から主出口３０２への流路に沿った中間位置に位置する少なくとも１つの補助入口および／または少なくとも１つの補助出口を有し、図３は、いくつかの実施形態においては補助入口（上向きの矢印を参照）であり、いくつかの実施形態においては補助出口（下向きの矢印を参照）である１つの中間タップ３０３の一般的な場合を示している。 Compressor 230 has a main inlet 301 (labeled 231 in FIG. 2), a main outlet 302 (labeled 232 in FIG. 2), and a flow path from the main inlet 301 to the main outlet 302. With at least one auxiliary inlet and / or at least one auxiliary outlet located at an intermediate position along, FIG. 3 is an auxiliary inlet (see arrow pointing up in some embodiments); The general case of one intermediate tap 303 is shown, which in the embodiment is an auxiliary outlet (see the down arrow).
好都合には、図３の実施形態のように、第２組のインペラ（３２１、３２２、および３２３）は、第１組のインペラ（３１１および３１２）の下流にあり、第２組のインペラ（３２１、３２２、および３２３）は、第１組のインペラ（３１１および３１２）よりも小さい直径を有することができる。 Advantageously, as in the embodiment of FIG. 3, the second set of impellers (321, 322 and 323) is downstream of the first set of impellers (311 and 312) and the second set of impellers (321) , 322, and 323) can have a smaller diameter than the first set of impellers (311 and 312).
図３の実施形態によれば、第１組のインペラ（３１１および３１２）のインペラは、シュラウドを有しておらず、第２組のインペラ（３２１、３２２、および３２３）のインペラよりも大きい直径を有する。 According to the embodiment of FIG. 3, the impellers of the first set of impellers (311 and 312) have no shrouds and have a larger diameter than the impellers of the second set of impellers (321, 322 and 323) Have.
シュラウドを有さないインペラは、シュラウドがないため、シュラウドを有するインペラよりも速く回転することができ、実際に、インペラが回転すると、シュラウドはシュラウドに作用する遠心力によって外側に引っ張られ、特定の回転速度においてシュラウドがインペラを引き抜く危険性がある。 Impellers that do not have a shroud can rotate faster than impellers that have a shroud because they do not have a shroud; in fact, when the impeller rotates, the shroud is pulled outward by the centrifugal force acting on the shroud and There is a risk that the shroud will withdraw the impeller at rotational speeds.
上記で定めた高圧縮比の遠心圧縮機のロータの構成により、圧縮機は、従来の遠心圧縮機よりも高速で回転することができ、したがってより大きい圧縮比を達成することができる。 The high compression ratio centrifugal compressor rotor configuration defined above allows the compressor to rotate at a higher speed than conventional centrifugal compressors and thus achieve higher compression ratios.
シュラウドを有さないインペラおよびシュラウドを有するインペラが、互いに交互に配置されてもよく、これが、特に１つ以上の補助入口および／または出口が存在する場合に生じることに、注意すべきである。 It should be noted that impellers without shrouds and impellers with shrouds may be arranged alternately with one another, which occurs in particular when one or more auxiliary inlets and / or outlets are present.
図３に示した遠心圧縮機と同一または同様の遠心圧縮機は、きわめて速く回転することができ、したがって、きわめて高い圧縮比に達することができる。したがって、単一（かつ小型）のケース内の単一の革新的な遠心圧縮機が、別個のケース内の２つまたは３つ以上の従来の遠心圧縮機を置き換えることができる。 A centrifugal compressor identical or similar to the centrifugal compressor shown in FIG. 3 can rotate very fast and thus can reach very high compression ratios. Thus, a single innovative centrifugal compressor in a single (and compact) case can replace two or more conventional centrifugal compressors in separate cases.
さらに、インペラの高い回転速度により、高い流量係数を得ることができる。 Furthermore, the high rotational speed of the impeller makes it possible to obtain a high flow coefficient.
図２に示した圧縮列と同一または同様の列（特に、図３に示した圧縮機と同一または同様の圧縮器を有する）を用いることにより、より小さな空間および／またはより小さな設置面積ならびにより少数の機械で、高いＬＮＧ生産を得ることができる。 Smaller spaces and / or smaller footprints and more by using the same or similar rows as the compression row shown in FIG. 2 (in particular having the same or similar compressors as the compressor shown in FIG. 3) High LNG production can be obtained with a few machines.
２つ以上のケースではなく、ただ１つのケースを有することが、多数の観点から有利であることに注意すべきである。
−設置および保守が簡単になる。
−保守の時間が短縮される。
−信頼性が向上する（構成要素が少なく、故障の可能性が少ない）。
−機械の設置面積および重量が低減される。
−ガスの漏れが低減される。
−潤滑油システムの複雑さおよびサイズが低減される。
It should be noted that having only one case, rather than two or more cases, is advantageous from multiple points of view.
-Easy to install and maintain.
-The maintenance time is reduced.
-Improved reliability (less components, less chance of failure).
-Machine footprint and weight are reduced.
Gas leakage is reduced.
-The complexity and size of the lubricating oil system is reduced.
図２に示した圧縮列と同一または同様の列は、主としてＬＮＧプラントにおいて使用されるように設計される。 The same or similar trains as the compression trains shown in FIG. 2 are designed primarily for use in LNG plants.
図４が、２つのそのような列を含むＬＮＧプラントの実施形態の概略図を示しており、ギアボックスは、図示されていないが、存在してもよい。 FIG. 4 shows a schematic view of an embodiment of an LNG plant that includes two such rows, and a gearbox may not be shown but may be present.
このような実施形態において、両方の列は、好都合には同一である。 In such an embodiment, both columns are advantageously identical.
このような実施形態において、両方の列は、ＡＰＣＩプロセスを実施する。 In such an embodiment, both columns perform the APCI process.
このような実施形態において、両方の列は、図３に示した圧縮機と同一または同様の圧縮器を備える。 In such an embodiment, both rows comprise a compressor identical or similar to the compressor shown in FIG.
図４に示したプラントなどのプラントは、図１のプラントに実質的に等しい出力を有することができる。いずれにせよ、図１のプラントに対する図４のプラントの利点の１つは、プラントの１つの構成要素が故障した場合に、図１のプラントはＬＮＧを生産することができないが、図４のプラントは定格の生産量の５０％を生産できることである。 A plant such as the plant shown in FIG. 4 can have substantially equal power to the plant of FIG. In any case, one of the advantages of the plant of FIG. 4 over the plant of FIG. 1 is that the plant of FIG. 1 can not produce LNG if one component of the plant fails, but the plant of FIG. Is capable of producing 50% of the rated production volume.
１００ ＬＮＧプラント
１１０ 第１のエンジン
１２０ 第２のエンジン
１２２ ブロック
１３０ 遠心圧縮機
１３１ （遠心圧縮機１３０の）入口
１３２ （遠心圧縮機１３０の）出口
１４０ 遠心圧縮機
１４１ （遠心圧縮機１４０の）入口
１４２ （遠心圧縮機１４０の）出口
１５０ 遠心圧縮機
１５１ （遠心圧縮機１５０の）入口
１５２ （遠心圧縮機１５０の）出口
１６０ 遠心圧縮機
１６１ （遠心圧縮機１６０の）入口
１６２ （遠心圧縮機１６０の）出口
２００ 圧縮列
２１０ エンジン
２２０ 第１の遠心圧縮機
２２２ 第１の出口
２３０ 第２の遠心圧縮機
２３２ 第２の出口
２４０ 補助エンジン
２５０ ギアボックス
３００ ケース
３０１ 主入口
３０２ 主出口
３０３ 中間タップ
３１１ インペラ
３１２ インペラ
３２１ インペラ
３２２ インペラ
３２３ インペラ
３３０ タイロッド
３４０Ａ Ｈｉｒｔｈ継手
３４０Ｂ Ｈｉｒｔｈ継手
３４０Ｃ Ｈｉｒｔｈ継手
３４０Ｄ Ｈｉｒｔｈ継手
100 LNG Plant 110 First Engine 120 Second Engine 122 Block 130 Centrifugal Compressor 131 Inlet 132 (of Centrifugal Compressor 130) Outlet 140 (of Centrifugal Compressor 130) Centrifugal Compressor 141 (of Centrifugal Compressor 140) Inlet 142 (centrifugal compressor 140) outlet 150 centrifugal compressor 151 (centrifugal compressor 150) inlet 152 (of centrifugal compressor 150) outlet 160 centrifugal compressor 161 (of centrifugal compressor 160) inlet 162 (centrifugal compressor 160 ) Outlet 200 compression train 210 engine 220 first centrifugal compressor 222 first outlet 230 second centrifugal compressor 232 second outlet 240 auxiliary engine 250 gearbox 300 case 301 main inlet 302 main outlet 303 middle tap 311 Impeller 312 Impeller 321 Impeller 322 Impeller 32 Impeller 330 tie rod 340A Hirth joint 340B Hirth joint 340C Hirth joint 340D Hirth joint
Claims (13)
前記第１の遠心圧縮機（２２０）は、１つのケースの内部に収容され、
前記第２の遠心圧縮機（２３０）は、１つのケースの内部に収容され、
前記第１の遠心圧縮機（２２０）は、特に４０よりも大きい高分子量のガスの配管に連通した第１の入口を有し、
前記第２の遠心圧縮機（２３０）は、特に２０〜３０の間の低分子量のガスの配管に連通した第２の入口を有し、
前記第２の遠心圧縮機（２３０）は、１０：１よりも高く、好ましくは１５：１よりも高い圧縮比をもたらすように構成されている、圧縮列（２００）。 An engine (210), a first centrifugal compressor (220) driven by the engine (210), and a second centrifugal compressor (230) driven by the engine (210);
The first centrifugal compressor (220) is housed inside one case,
The second centrifugal compressor (230) is housed inside one case,
Said first centrifugal compressor (220) has a first inlet in communication with a pipe of high molecular weight gas, in particular greater than 40,
Said second centrifugal compressor (230) has in particular a second inlet in communication with a pipe of low molecular weight gas between 20 and 30,
The second centrifugal compressor (230) is configured to provide a compression ratio higher than 10: 1, preferably higher than 15: 1, a compression train (200).
前記低分子量のガスは、混合冷媒ガスであり、特にプロパンと、エチレンまたはエタンと、メタンとの混合物である、請求項１に記載の圧縮列。 The high molecular weight gas is propane,
The compression train according to claim 1, wherein the low molecular weight gas is a mixed refrigerant gas, in particular a mixture of propane, ethylene or ethane and methane.
前記第１組のインペラ（３１１、３１２）は、遠心式であり、シュラウドを有さず、
前記第２組のインペラ（３２１、３２２、３２３）は、遠心式であり、シュラウドを有する、請求項１乃至８のいずれか１項に記載の圧縮列。 The second centrifugal compressor (230) comprises a first set of impellers (311, 312) and a second set of impellers (321, 322, 323),
The first set of impellers (311, 312) is centrifugal and has no shroud and
A compression train according to any of the preceding claims, wherein the second set of impellers (321, 322, 323) is centrifugal and has a shroud.
前記第１組のインペラは、遠心式であり、シュラウドを有し、
前記第２組のインペラは、遠心式であり、シュラウドを有する、請求項１乃至８のいずれか１項に記載の圧縮列。 The second centrifugal compressor (230) comprises a first set of impellers and a second set of impellers,
The first set of impellers is centrifugal and has a shroud,
A compression train according to any of the preceding claims, wherein the second set of impellers is centrifugal and has a shroud.
前記または各々の第２の遠心圧縮機（２３０、３３０）は、低分子量のガスを圧縮するように構成され、
前記または各々の第１の遠心圧縮機（２２０、３２０）と、前記または各々の第２の遠心圧縮機（２３０、３３０）とは、天然ガスの流れを液化させるべく協働する、請求項１１または１２に記載のＬＮＧプラント（１００）。 The or each first centrifugal compressor (220, 320) is configured to compress high molecular weight gas,
The or each second centrifugal compressor (230, 330) is configured to compress a low molecular weight gas,
12. The or each first centrifugal compressor (220, 320) and the or each second centrifugal compressor (230, 330) cooperate to liquefy the flow of natural gas. Or the LNG plant (100) according to 12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUA2016A004168A ITUA20164168A1 (en) | 2016-06-07 | 2016-06-07 | COMPRESSION TRAIN WITH TWO CENTRIFUGAL COMPRESSORS AND LNG PLANT WITH TWO CENTRIFUGAL COMPRESSORS |
| IT102016000058269 | 2016-06-07 | ||
| PCT/EP2017/063790 WO2017211871A1 (en) | 2016-06-07 | 2017-06-07 | Compression train including two centrifugal compressors and lng plant including two centrifugal compressors |
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| JP2019517638A true JP2019517638A (en) | 2019-06-24 |
| JP7218181B2 JP7218181B2 (en) | 2023-02-06 |
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| US (1) | US20200318641A1 (en) |
| EP (1) | EP3464905A1 (en) |
| JP (1) | JP7218181B2 (en) |
| KR (1) | KR20190015743A (en) |
| CN (1) | CN109312752A (en) |
| IT (1) | ITUA20164168A1 (en) |
| WO (1) | WO2017211871A1 (en) |
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| US10935312B2 (en) * | 2018-08-02 | 2021-03-02 | Air Products And Chemicals, Inc. | Balancing power in split mixed refrigerant liquefaction system |
| CN112577211B (en) * | 2019-09-30 | 2021-12-14 | 约克（无锡）空调冷冻设备有限公司 | Load balancing method for two compressors |
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- 2017-06-07 CN CN201780035122.6A patent/CN109312752A/en active Pending
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| WO2017211871A1 (en) | 2017-12-14 |
| KR20190015743A (en) | 2019-02-14 |
| EP3464905A1 (en) | 2019-04-10 |
| CN109312752A (en) | 2019-02-05 |
| JP7218181B2 (en) | 2023-02-06 |
| ITUA20164168A1 (en) | 2017-12-07 |
| US20200318641A1 (en) | 2020-10-08 |
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