RU2018109328A - DEVICE FOR LIQUIDING NATURAL GAS AND CONDENSATE REMOVAL - Google Patents

DEVICE FOR LIQUIDING NATURAL GAS AND CONDENSATE REMOVAL Download PDF

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Publication number
RU2018109328A
RU2018109328A RU2018109328A RU2018109328A RU2018109328A RU 2018109328 A RU2018109328 A RU 2018109328A RU 2018109328 A RU2018109328 A RU 2018109328A RU 2018109328 A RU2018109328 A RU 2018109328A RU 2018109328 A RU2018109328 A RU 2018109328A
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Russia
Prior art keywords
stage
channel
refrigerant
separator
natural gas
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RU2018109328A
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Russian (ru)
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Цзюньфэн ГО
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Бэйцзин Петрокемикал Инжиниринг Ко., Лтд.
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Publication of RU2018109328A publication Critical patent/RU2018109328A/en

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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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
    • 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
    • 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
    • F25J1/02—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
    • F25J1/0212—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 single flow MCR 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
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0229—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock
    • F25J1/0231—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock for the working-up of the hydrocarbon feed, e.g. reinjection of heavier hydrocarbons into the liquefied 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
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0235—Heat exchange integration
    • F25J1/0237—Heat exchange integration integrating refrigeration provided for liquefaction and purification/treatment of the gas to be liquefied, e.g. heavy hydrocarbon removal from natural gas
    • F25J1/0238—Purification or treatment step is integrated within one refrigeration cycle only, i.e. the same or single refrigeration cycle provides feed gas cooling (if present) and overhead gas cooling
    • 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
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0235—Heat exchange integration
    • F25J1/0242—Waste heat recovery, e.g. from heat of compression
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0209—Natural gas or substitute natural 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0242—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 3 carbon atoms or more
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/06—Splitting of the feed stream, e.g. for treating or cooling in different ways
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/04—Recovery of liquid products
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/18—External refrigeration with incorporated cascade loop
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/66—Closed external refrigeration cycle with multi component refrigerant [MCR], e.g. mixture of hydrocarbons
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/902—Details about the refrigeration cycle used, e.g. composition of refrigerant, arrangement of compressors or cascade, make up sources, use of reflux exchangers etc.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (16)

1. Устройство для сжижения природного газа и извлечения конденсата, отличающееся тем, что содержит:1. A device for liquefying natural gas and condensate extraction, characterized in that it contains: устройство для сжижения природного газа типа комбинированного охлаждения, содержащее хладагентные агрегаты-компрессоры, которые содержат хладагентный компрессор первой ступени и хладагентный компрессор второй ступени, на выходе хладагентного компрессора первой ступени соединяется с сепаратором первой ступени, на выходе хладагентного компрессора второй ступени соединяется с сепаратором второй ступени, выходы сепаратора первой ступени и сепаратора второй ступени соединяются с холодильником, внутри которого устанавливаются отдельно канал хладагента, канал охлаждения природного газа, канал сжижения природного газа первой ступени сепарации и канал сжижения природного газа второй ступени сепарации;a device for combining natural gas liquefaction of the combined cooling type, comprising refrigerant compressor units that comprise a first stage refrigerant compressor and a second stage refrigerant compressor, connected to a first stage refrigerant compressor, connected to a second stage refrigerant compressor, and connected to a second stage separator , the outputs of the first stage separator and the second stage separator are connected to the refrigerator, inside which a separate a refrigerant passage, the natural gas cooling channel, the channel LNG first separation stage and the liquefaction stage of separation of the second channel; устройство сепарации тяжелых углеводородов, содержащее один сепаратор тяжелых углеводородов, соединяющийся с каналом охлаждения природного газа, на вершине сепаратора выход природного газа первой ступени для соединения с входом на канале сжижения природного газа первой ступени сепарации, а на днище сепаратора выход жидкостей тяжелых углеводородов;a heavy hydrocarbon separation device comprising one heavy hydrocarbon separator connected to a natural gas cooling channel, at the top of the separator, a first stage natural gas outlet for connection to an input on a natural gas liquefaction channel of a first separation stage, and a heavy hydrocarbon liquid outlet at a bottom of the separator; устройство извлечения конденсата, содержащее деэтанизатор, соединяющийся с выходом жидкостей тяжелых углеводородов, на вершине деэтанизатора выход природного газа второй ступени для соединения с входом канала сжижения природного газа второй ступени сепарации, на днище деэтанизатора выход конденсата, с помощью которого деэтанизатор соединяется с ребойлером, канал источника тепла которого соединен последовательно между выходом хладагентного компрессора и входом сепаратора первой ступени, на выходе конденсата установлено оборудование для извлечения и хранения конденсата;a condensate extraction device containing a deethanizer connected to the outlet of heavy hydrocarbon liquids, at the top of the deethanizer is a second-stage natural gas outlet for connecting to the inlet of the natural gas liquefaction channel of the second separation stage, a condensate outlet at the bottom of the deethanizer through which the deethanizer is connected to the reboiler, the source channel the heat of which is connected in series between the output of the refrigerant compressor and the input of the separator of the first stage, it is installed at the condensate outlet Ie for the extraction and storage of condensate; устройство управления сжижением природного газа, вход которого соединяется с каналом сжижения природного газа первой ступени сепарации и каналом сжижения природного газа второй ступени, выход которого соединяется с оборудованием хранения природного газа.natural gas liquefaction control device, the input of which is connected to the natural gas liquefaction channel of the first separation stage and the second stage natural gas liquefaction channel, the output of which is connected to the natural gas storage equipment. 2. Устройство по п. 1, отличающееся тем, что холодильник содержит первый корпус, в котором установлен теплообменник, в котором установлены сверху вниз канал охлаждения природного газа, канал сжижения природного газа первой ступени сепарации, канал сжижения природного газа второй ступени сепарации и каналы хладагентов, содержащие канал хладагентов в газожидкостной фазе высокого давления, канал хладагентов в жидкостной фазе высокого давления, канал хладагентов в жидкостной фазе среднего давления и канал хладагентов обратного потока, канал хладагентов в газожидкостной фазе высокого давления и канал хладагентов обратного потока проходят сквозь теплообменник сверху вниз, внутри первого корпуса установлены снизу вверх сепаратор комбинированных хладагентов первой ступени, сепаратор комбинированных хладагентов второй ступени и сепаратор комбинированных хладагентов третьей ступени;2. The device according to claim 1, characterized in that the refrigerator comprises a first housing in which a heat exchanger is installed, in which a natural gas cooling channel, a natural gas liquefaction channel of a first separation stage, a natural gas liquefaction channel of a second separation stage and refrigerant channels are installed containing a channel of refrigerants in the gas-liquid phase of high pressure, a channel of refrigerants in the liquid phase of high pressure, a channel of refrigerants in the liquid phase of medium pressure and a channel of refrigerants for reverse flow, channel gas-liquid refrigerant in the high pressure phase channel and the backflow of refrigerant pass through the heat exchanger from top to bottom, a first casing mounted inside the bottom up composite refrigerant separator first stage separator second stage combined refrigerant and the combined refrigerant separator third stage; выход канала хладагентов в газожидкостной фазе высокого давления соединяется с сепаратором комбинированных хладагентов первой ступени, выход которого соединяется с каналом хладагентов обратного потока; выход канала хладагентов в жидкой фазе высокого давления соединяется с сепаратором комбинированных хладагентов второй ступени, выход которого соединяется с каналом хладагентов обратного потока; выход канала хладагентов в жидкостной фазе среднего давления соединяется с сепаратором комбинированных хладагентов третьей ступени, выход которого соединяется с каналом хладагентов обратного потока.the outlet of the refrigerant channel in the gas-liquid phase of high pressure is connected to the separator of combined refrigerants of the first stage, the output of which is connected to the channel of the return flow refrigerants; the outlet of the refrigerant channel in the high-pressure liquid phase is connected to a second stage combined refrigerant separator, the outlet of which is connected to the return flow refrigerant channel; the outlet of the refrigerant channel in the liquid phase of medium pressure is connected to the separator of the combined refrigerants of the third stage, the output of which is connected to the channel of the return flow refrigerants. 3. Устройство по п. 1, отличающееся тем, что устройство сжижения природного газа типа комбинированного охлаждения содержит отверстие заправки хладагентов, с которым и хладагентным компрессором первой ступени соединяется сепаратор третьей ступени, выход канала хладагентов обратного потока соединяется с входом сепаратора третьей ступени.3. The device according to claim 1, characterized in that the natural gas liquefaction device of the combined cooling type comprises a refrigerant charge port, to which a third stage separator is connected to a first stage refrigerant compressor, and the output of the return flow refrigerant channel is connected to the input of the third stage separator. 4. Устройство по п. 1, отличающееся тем, что для сепаратора первой ступени, на вершине которого установлен выход газообразной фазы, на днище которого установлен выход жидкостной фазы, выход газообразной фазы соединяется с входом хладагентного компрессора второй ступени, тоже соединяется с входом сепаратора третьей ступени через антипомпажный клапан хладагентного компрессора первой ступени, выход жидкостной фазы соединяется с входом канала хладагентов в жидкостной фазе среднего давления;4. The device according to claim 1, characterized in that for the separator of the first stage, at the top of which the output of the gaseous phase is installed, at the bottom of which the output of the liquid phase is installed, the output of the gaseous phase is connected to the input of the refrigerant compressor of the second stage, also connected to the input of the separator of the third stages through the anti-surge valve of the first stage refrigerant compressor, the output of the liquid phase is connected to the inlet of the refrigerant channel in the medium-pressure liquid phase; для сепаратора второй ступени, на вершине которого установлен выход газообразной фазы, на днище установлен выход жидкостной фазы, выход газообразной фазы соединяется с входом канала хладагентов в газожидкостной фазе высокого давления, также соединяется с входом сепаратора второй ступени через антипомпажный клапан хладагентного компрессора второй ступени, выход жидкостной фазы соединяется с входом канала хладагентов в жидкостной фазе высокого давления.for the separator of the second stage, at the top of which the outlet of the gaseous phase is installed, the outlet of the liquid phase is installed on the bottom, the outlet of the gaseous phase is connected to the inlet of the refrigerant channel in the high-pressure gas-liquid phase, also connected to the inlet of the separator of the second stage through the anti-surge valve of the refrigerant compressor of the second stage, the outlet The liquid phase is connected to the inlet of the refrigerant channel in the high-pressure liquid phase. 5. Устройство по п. 4, отличающееся тем, что на сепараторе первой ступени установлен контроллер уровня жидкости, между выходом канала хладагентов в жидкостной фазе среднего давления и сепаратором комбинированных хладагентов третьей ступени установлен последовательно клапан управления уровнем жидкости сепаратором первой ступени; выход газообразной фазы сепаратора второй ступени соединяется с регулятором потока хладагентов в газожидкостной фазе высокого давления, между выходом канала хладагентов в газожидкостной фазе высокого давления и сепаратором комбинированного хладагента первой ступени установлен последовательно клапан потока хладагентов в газожидкостной фазе высокого давления; выход в жидкостной фазе сепаратора второй ступени соединяется с регулятором потока хладагентов в жидкостной фазе высокого давления, между выходом канала хладагентов в жидкостной фазе высокого давления и сепаратором комбинированного хладагента второй ступени установлен последовательно клапан потока хладагентов в жидкостной фазе высокого давления.5. The device according to claim 4, characterized in that a liquid level controller is installed on the first stage separator, a liquid level control valve for the first stage separator is sequentially installed between the output of the refrigerant channel in the medium-pressure liquid phase and the combined refrigerant separator of the third stage; the gaseous phase output of the second stage separator is connected to the regulator of the flow of refrigerants in the high-pressure gas-liquid phase, between the output of the refrigerant channel in the high-pressure gas-liquid phase and the combined refrigerant separator of the first stage, the valve of the refrigerant flow in the high-pressure gas-liquid phase is sequentially installed; the liquid phase outlet of the second-stage separator is connected to the regulator of the flow of refrigerants in the high-pressure liquid phase; between the output of the refrigerant channel in the high-pressure liquid phase and the combined refrigerant separator of the second stage, a valve for the flow of refrigerants in the high-pressure liquid phase is installed in series. 6. Устройство по п. 3, отличающееся тем, что между выходом канала источника тепла и входом сепаратора первой ступени установлен последовательно охладитель первой ступени, между выходом хладагентного компрессора второй ступени и входом сепаратора второй ступени установлен последовательно охладитель второй ступени.6. The device according to claim 3, characterized in that between the output of the heat source channel and the input of the first stage separator, a first stage cooler is installed in series, between the output of the second stage refrigerant compressor and the second stage separator inlet, a second stage cooler is installed in series. 7. Устройство по п. 2, отличающееся тем, что для сепаратора комбинированного хладагента первой ступени, на вершине которого установлен выход газообразной фазы, на днище которого установлен выход жидкостной фазы, выход газообразной фазы соединяется с входом, находящимся на середине-нижней части смесителя, выход жидкостной фазы соединяется с входом, находящимся на середине-верхней части смесителя, выход на вершине смесителя соединяется с каналом обратного потока.7. The device according to p. 2, characterized in that for the combined refrigerant separator of the first stage, at the top of which the outlet of the gaseous phase is installed, on the bottom of which the outlet of the liquid phase is installed, the outlet of the gaseous phase is connected to the inlet located on the middle-lower part of the mixer, the output of the liquid phase is connected to the inlet located on the middle-upper part of the mixer, the outlet at the top of the mixer is connected to the return flow channel. 8. Устройство по п. 1, отличающееся тем, что внутри ребойлера установлен канал повторного кипения конденсата, вход которого соединяется с выходом конденсата, выход которого соединяется с нижней частью корпуса деэтанизатора.8. The device according to claim 1, characterized in that a condensate re-boiling channel is installed inside the reboiler, the input of which is connected to the condensate output, the output of which is connected to the lower part of the deethanizer body. 9. Устройство по п. 1, отличающееся тем, что на деэтанизаторе установлен контроллер температуры ребойлера, вход канала источника тепла соединяется с клапаном управления температурой ребойлера; на деэтанизаторе установлен контроллер уровня жидкости, между выходом конденсата и устройством извлечения и хранения конденсата установлен последовательно охладитель конденсата, между выходом которого и устройством извлечения и хранения конденсата установлен последовательно клапан управления уровнем жидкости.9. The device according to claim 1, characterized in that the deboiler temperature controller is installed on the deethanizer, the input of the heat source channel is connected to the reboiler temperature control valve; a liquid level controller is installed on the deethanizer, between the condensate outlet and the condensate extraction and storage device, a condensate cooler is installed in series, between the output of which and the condensate extraction and storage device the liquid level control valve is installed in series. 10. Устройство по п. 1, отличающееся тем, что устройство управления сжижением природного газа содержит регулятор потока природного газа первой ступени, вход которого соединяется с выходом канала сжижения природного газа первой ступени сепарации, регулятор потока соединяется с клапаном потока природного газа первой ступени, устройство управления сжижением природного газа также содержит регулятор потока природного газа второй ступени, соединяющийся с выходом канала сжижения природного газа второй ступени сепарации, также соединяющийся с клапаном давления потока природного газа, который имеет электрическое соединение с контроллером давления природного газа, соединяющимся с выходом природного газа второй ступени, выход клапана потока природного газа первой ступени и выход клапан давления природного газа соединяются с устройством хранения природного газа.10. The device according to claim 1, characterized in that the natural gas liquefaction control device comprises a first-stage natural gas flow regulator, the input of which is connected to the output of the natural gas liquefaction channel of the first separation stage, the flow regulator is connected to the first-stage natural gas flow valve, the device control system for liquefying natural gas also contains a regulator of the flow of natural gas of the second stage, connected to the output of the channel for liquefying natural gas of the second stage of separation, also connecting Valve-pressure natural gas stream, which has an electrical connection to the gas pressure controller, connected to the output gas of the second stage, the output gas flow valve of the first stage and the output gas pressure valve connected to the gas storage device.
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