KR102151725B1 - Crude argon liquid transfer device and cryogenic air separation facility having the same - Google Patents

Crude argon liquid transfer device and cryogenic air separation facility having the same Download PDF

Info

Publication number
KR102151725B1
KR102151725B1 KR1020180073100A KR20180073100A KR102151725B1 KR 102151725 B1 KR102151725 B1 KR 102151725B1 KR 1020180073100 A KR1020180073100 A KR 1020180073100A KR 20180073100 A KR20180073100 A KR 20180073100A KR 102151725 B1 KR102151725 B1 KR 102151725B1
Authority
KR
South Korea
Prior art keywords
crude argon
argon
solution
tank
crude
Prior art date
Application number
KR1020180073100A
Other languages
Korean (ko)
Other versions
KR20200000879A (en
Inventor
이대원
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020180073100A priority Critical patent/KR102151725B1/en
Publication of KR20200000879A publication Critical patent/KR20200000879A/en
Application granted granted Critical
Publication of KR102151725B1 publication Critical patent/KR102151725B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • 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
    • F25J3/028—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 noble gases
    • F25J3/0285—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 noble gases of argon
    • 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
    • F25J3/04—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 for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
    • 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
    • F25J3/04—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 for air
    • F25J3/04406—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 for air using a dual pressure main column system
    • F25J3/04412—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 for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • 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
    • F25J3/04—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 for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • 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
    • F25J3/04—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 for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04721—Producing pure argon, e.g. recovered from a crude argon column
    • F25J3/04727—Producing pure argon, e.g. recovered from a crude argon column using an auxiliary pure argon column for nitrogen rejection
    • 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
    • F25J3/04—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 for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04781—Pressure changing devices, e.g. for compression, expansion, liquid pumping
    • 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
    • F25J3/04—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 for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04793—Rectification, e.g. columns; Reboiler-condenser
    • F25J3/048—Argon recovery
    • F25J3/04806—High purity argon purification
    • 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
    • F25J2210/58—Argon
    • 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
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/50—Separating low boiling, i.e. more volatile components from oxygen, e.g. N2, Ar
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/04—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams using a pressure accumulator
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/58—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being argon or crude argon

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

조아르곤액 이송장치 및 이를 갖춘 극저온 공기분리설비를 개시한다. 본 발명의 실시 예에 따른 조아르곤액 이송장치는 극저온 공기분리설비의 조아르곤 증류탑에 고인 조아르곤액을 메인 증류탑으로 이송하도록 안내하는 조아르곤액 관로; 조아르곤액 관로에 설치되어 조아르곤액을 수용하는 적어도 하나의 조아르곤액 탱크; 조아르곤액 탱크의 입구와 출구를 각각 개폐하는 입구밸브와 출구밸브; 및 조아르곤액 탱크의 조아르곤액을 기화시켜 조아르곤액 탱크의 압력을 설정한 송출압력으로 상승시키는 기화장치를 포함한다. A crude argon liquid transfer device and a cryogenic air separation facility equipped with the same are disclosed. A crude argon solution transfer device according to an embodiment of the present invention includes a crude argon solution pipe for guiding the crude argon solution accumulated in the crude argon distillation column of the cryogenic air separation facility to the main distillation column; At least one crude argon solution tank installed in the crude argon solution pipe to receive the crude argon solution; An inlet valve and an outlet valve respectively opening and closing the inlet and outlet of the crude argon liquid tank; And a vaporization device for evaporating the crude argon solution in the crude argon solution tank to increase the pressure in the crude argon solution tank to a set delivery pressure.

Description

조아르곤액 이송장치 및 이를 갖춘 극저온 공기분리설비{CRUDE ARGON LIQUID TRANSFER DEVICE AND CRYOGENIC AIR SEPARATION FACILITY HAVING THE SAME}Crude argon liquid transfer device and cryogenic air separation facility equipped with it {CRUDE ARGON LIQUID TRANSFER DEVICE AND CRYOGENIC AIR SEPARATION FACILITY HAVING THE SAME}

본 발명은 조아르곤 증류탑 하부의 조아르곤액을 기화시켜 승압하는 방식으로 메인 증류탑으로 이송하는 조아르곤액 이송장치 및 이를 갖춘 극저온 공기분리설비에 관한 것이다.The present invention relates to a crude argon solution transfer device for transferring to a main distillation column by vaporizing and boosting the crude argon solution in a lower part of the crude argon distillation column, and a cryogenic air separation facility equipped with the same.

공기(空氣)는 질소, 산소, 아르곤, 이산화 탄소, 수증기 등을 포함하는데, 공기에 포함된 질소, 산소, 아르곤과 같은 성분들은 극저온 공기분리설비를 통해 생산할 수 있다. Air contains nitrogen, oxygen, argon, carbon dioxide, and water vapor, and components such as nitrogen, oxygen, and argon contained in air can be produced through cryogenic air separation equipment.

극저온 공기분리기술은 공기 중의 이산화탄소, 수증기 등 불순물을 제거한 후 공기를 극저온으로 냉각시키고, 이후 각 성분들을 끓는점 차이를 이용해 증류방식으로 분리하여 기체 또는 액체 상태의 산소, 질소, 아르곤을 생산한다. Cryogenic air separation technology removes impurities such as carbon dioxide and water vapor in the air, cools the air to cryogenic temperatures, and then separates each component by distillation using the difference in boiling point to produce gaseous or liquid oxygen, nitrogen, and argon.

통상의 극저온 공기분리설비는 하부의 고압탑과 상부의 저압탑을 갖춘 메인 증류탑, 메인 증류탑 상측의 저압탑 중단으로부터 산소 및 질소성분이 포함된 조아르곤 유체를 공급 받아 아르곤 성분을 재차 분리하는 조아르곤 증류탑, 조아르곤 증류탑에서 분리된 아르곤 성분을 정제하여 순수 아르곤을 생산하는 순아르곤 증류탑을 포함할 수 있다. Conventional cryogenic air separation facilities include a main distillation column with a high-pressure column at the bottom and a low pressure column at the top, and a crude argon that separates argon components by receiving a crude argon fluid containing oxygen and nitrogen from the interruption of the low pressure column above the main distillation column. It may include a distillation column, a pure argon distillation column that produces pure argon by purifying the argon component separated from the crude argon distillation column.

일본 공개특허공보 2009-30966호(2009.2.12. 공개) 및 대한민국 특허공보 특1995-0014009호(1995.11.20. 공고)는 이러한 유형의 극저온 공기분리설비의 예를 제시하고 있다.Japanese Unexamined Patent Publication No. 2009-30966 (published on February 12, 2009) and Korean Patent Publication No. 1995-0014009 (published on November 20, 1995) provide examples of this type of cryogenic air separation equipment.

이러한 극저온 공기분리설비는 메인 증류탑 상측 저압탑으로부터 분리된 조아르곤 유체가 관로를 통해 조아르곤 증류탑의 하측으로 공급되고, 조아르곤 증류탑에서 이 유체로부터 아르곤 성분이 분리된다. 아르곤의 분리과정에서 조아르곤 증류탑 하부에 고이는 조아르곤액은 회송펌프에 의해 다시 메인 증류탑 상측의 저압탑으로 회송된다.In such a cryogenic air separation facility, the crude argon fluid separated from the low pressure column above the main distillation column is supplied to the lower side of the crude argon distillation column through a pipe, and the argon component is separated from this fluid in the crude argon distillation column. During the separation of argon, the crude argon liquid accumulated in the lower part of the crude argon distillation column is returned to the low pressure column above the main distillation column by a return pump.

그러나 이러한 극저온 공기분리설비는 조아르곤 증류탑 하부의 조아르곤액을 메인 증류탑으로 회송시키기 위해 회송펌프를 지속적으로 가동시켜야 하기 때문에 에너지 손실이 큰 문제가 있었다. 아울러 회송펌프의 고장 등으로 인해 아르곤의 생산에 차질이 생길 수 있었다. However, such a cryogenic air separation facility has a big problem of energy loss because the return pump must be continuously operated to return the crude argon liquid at the bottom of the crude argon distillation column to the main distillation column. In addition, the production of argon could be disrupted due to failure of the return pump.

본 발명의 일 측면은 조아르곤 증류탑의 조아르곤액을 기화시켜 승압하는 방식으로 메인 증류탑으로 이송할 수 있는 조아르곤액 이송장치 및 이를 갖춘 극저온 공기분리설비를 제공하고자 한다.An aspect of the present invention is to provide a crude argon solution transfer device capable of transferring to a main distillation column by vaporizing and boosting the crude argon solution in a crude argon distillation column and a cryogenic air separation facility equipped with the same.

본 발명의 일 측면에 따르면, 극저온 공기분리설비의 조아르곤 증류탑에 고인 조아르곤액을 메인 증류탑으로 이송하도록 안내하는 조아르곤액 관로; 상기 조아르곤액 관로에 설치되어 조아르곤액을 수용하는 적어도 하나의 조아르곤액 탱크; 상기 조아르곤액 탱크의 입구와 출구를 각각 개폐하는 입구밸브와 출구밸브; 및 상기 조아르곤액 탱크의 조아르곤액을 기화시켜 상기 조아르곤액 탱크의 압력을 설정한 송출압력으로 상승시키는 기화장치;를 포함하는 조아르곤액 이송장치가 제공될 수 있다.According to an aspect of the present invention, a crude argon solution pipe for guiding to transfer the crude argon solution accumulated in the crude argon distillation column of the cryogenic air separation facility to the main distillation column; At least one crude argon solution tank installed in the crude argon solution pipe to receive the crude argon solution; An inlet valve and an outlet valve respectively opening and closing the inlet and outlet of the crude argon liquid tank; And a vaporization device for evaporating the crude argon solution in the crude argon solution tank to increase the pressure of the crude argon solution tank to a set delivery pressure.

상기 조아르곤액 이송장치는 상기 조아르곤액 탱크 내부의 압력을 감지하는 압력센서; 및 상기 입구밸브와 상기 출구밸브의 개폐 및 상기 기화장치의 동작을 제어하는 제어부;를 더 포함할 수 있다.The crude argon solution transfer device may include a pressure sensor for sensing the pressure inside the crude argon solution tank; And a control unit for controlling the opening and closing of the inlet valve and the outlet valve and operation of the vaporization device.

상기 제어부는 상기 조아르곤액 탱크의 내부 압력이 상기 송출압력에 이르면 상기 기화장치의 동작을 멈추고 상기 출구밸브를 개방하도록 제어할 수 있다.When the internal pressure of the crude argon liquid tank reaches the delivery pressure, the control unit may control to stop the operation of the vaporizer and open the outlet valve.

상기 기화장치는 상기 조아르곤액 탱크의 조아르곤액을 대기와 열교환을 통해 기화시키는 열교환기; 상기 조아르곤액 탱크의 조아르곤액이 상기 열교환기로 공급되어 기화된 후 상기 조아르곤액 탱크로 유입될 수 있도록 상기 조아르곤액 탱크와 상기 열교환기를 연결하는 기화관로; 및 상기 기화관로를 개폐해 유체의 흐름을 제어하는 기화제어밸브;를 포함할 수 있다.The vaporization device may include a heat exchanger for vaporizing the crude argon solution in the crude argon solution tank through heat exchange with the atmosphere; A vaporization pipe path connecting the crude argon solution tank and the heat exchanger so that the crude argon solution of the crude argon solution tank is supplied to the heat exchanger and vaporized and then flows into the crude argon solution tank; And a vaporization control valve for controlling the flow of fluid by opening and closing the vaporization pipe.

상기 조아르곤액 탱크는 조아르곤액을 번갈아 수용할 수 있도록 상기 조아르곤액 관로에 병렬로 설치된 제1조아르곤액 탱크와 제2조아르곤액 탱크를 포함하고, 상기 입구밸브는 상기 제1조아르곤액 탱크의 입구를 개폐하는 제1입구밸브와, 상기 제2조아르곤액 탱크의 입구를 개폐하는 제2입구밸브를 포함하고, 상기 출구밸브는 상기 제1조아르곤액탱크의 출구를 개폐하는 제1출구밸브와, 상기 제2조아르곤액 탱크의 출구를 개폐하는 제2출구밸브를 포함하고, 상기 기화장치는 상기 제1조아르곤액 탱크의 조아르곤액을 기화시키는 제1기화장치와, 상기 제2조아르곤액 탱크의 조아르곤액을 기화시키는 제2기화장치를 포함할 수 있다.The crude argon liquid tank includes a first tank argon liquid tank and a second tank argon liquid tank installed in parallel to the crude argon liquid pipe so as to alternately accommodate the crude argon liquid, and the inlet valve is the first tank argon A first inlet valve for opening and closing the inlet of the liquid tank, and a second inlet valve for opening and closing the inlet of the second argon liquid tank, and the outlet valve is a first for opening and closing the outlet of the first argon liquid tank. A first outlet valve and a second outlet valve for opening and closing an outlet of the second argon liquid tank, wherein the vaporizing device comprises a first vaporizing device for vaporizing the crude argon liquid of the first argon liquid tank, and the Article 2 It may include a second vaporization device for vaporizing the crude argon liquid in the argon liquid tank.

상기 조아르곤액 이송장치는 상기 제1조아르곤액 탱크와 상기 제2조아르곤액 탱크의 압력을 각각 감지하는 제1압력센서와 제2압력센서; 및 상기 제1 및 제2입구밸브, 상기 제1 및 제2출구밸브, 상기 제1 및 제2기화장치의 동작을 제어하는 제어부;를 포함할 수 있다.The crude argon solution transfer device comprises: a first pressure sensor and a second pressure sensor for sensing pressures of the first and second argon tanks; And a control unit for controlling operations of the first and second inlet valves, the first and second outlet valves, and the first and second vaporization devices.

상기 제어부는 상기 제1조아르곤액 탱크와 상기 제2조아르곤액 탱크에 조아르곤액이 번갈아 유입될 수 있도록 상기 제1 및 제2입구밸브의 개폐를 제어하고, 상기 제1조아르곤액 탱크와 상기 제2조아르곤액 탱크의 조아르곤액이 번갈아 송출될 수 있도록 상기 제1 및 제2출구밸브의 개폐를 제어할 수 있다.The control unit controls the opening and closing of the first and second inlet valves so that the crude argon solution alternately flows into the first argon solution tank and the second argon solution tank, and the first argon solution tank and Opening and closing of the first and second outlet valves may be controlled so that the crude argon solution of the second argon solution tank is alternately delivered.

본 발명의 다른 측면에 따르면, 전술한 조아르곤액 이송장치를 포함하는 극저온 공기분리설비가 제공될 수 있다. According to another aspect of the present invention, a cryogenic air separation facility including the above-described crude argon liquid transfer device may be provided.

본 발명의 실시 예에 따른 조아르곤액 이송장치는 조아르곤 증류탑의 조아르곤액을 기화시켜 승압하는 방식으로 메인 증류탑의 저압탑으로 이송하기 때문에 조아르곤액 이송에 따른 에너지 손실을 줄일 수 있다. 즉 펌프 등을 가동하지 않고서도 조아르곤액을 이송할 수 있기 때문에 에너지 손실을 줄일 수 있고, 펌프 등의 고장에 따른 조업 손실을 최소화할 수 있다.The crude argon solution transfer device according to an embodiment of the present invention can reduce energy loss due to transfer of the crude argon solution because the crude argon solution of the crude argon distillation column is vaporized to increase pressure, and is transferred to the low pressure column of the main distillation column. That is, since the crude argon solution can be transferred without running the pump, energy loss can be reduced, and operation loss due to failure of the pump can be minimized.

도 1은 본 발명의 실시 예에 따른 조아르곤액 이송장치가 적용된 극저온 공기분리설비를 나타낸다.
도 2는 도 1의 A부분 상세도이다.1 shows a cryogenic air separation facility to which a crude argon liquid transfer device according to an embodiment of the present invention is applied.
2 is a detailed view of part A of FIG. 1.

이하에서는 본 발명의 실시 예를 첨부 도면을 참조하여 상세히 설명한다. 이하의 실시 예는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 본 발명의 사상을 충분히 전달하기 위해 제시하는 것이며, 여기서 제시한 것으로 한정되지 않고 다른 형태로 구체화될 수도 있다. 도면은 본 발명을 명확히 하기 위해 설명과 관계 없는 부분의 도시를 생략할 수 있고, 이해를 돕기 위해 구성요소의 크기를 다소 과장하여 표현할 수 있다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are presented in order to sufficiently convey the spirit of the present invention to those of ordinary skill in the art to which the present invention pertains, and may be embodied in other forms without being limited thereto. In the drawings, in order to clarify the present invention, portions not related to the description may be omitted, and the size of components may be slightly exaggerated to help understanding.

도 1은 본 발명의 실시 예에 따른 조아르곤액 이송장치가 적용된 극저온 공기분리설비를 나타낸다. 도 1에 도시한 바와 같이, 극저온 공기분리설비는 메인 증류탑(100), 조아르곤 증류탑(200), 순아르곤 증류탑(300)을 포함할 수 있다.1 shows a cryogenic air separation facility to which a crude argon liquid transfer device according to an embodiment of the present invention is applied. 1, the cryogenic air separation facility may include a main distillation column 100, a crude argon distillation column 200, and a pure argon distillation column 300.

메인 증류탑(100)은 대략 5kg/㎠G의 압력을 유지하는 하부의 고압탑(110)과 대략 0.5kg/㎠G의 압력을 유지하는 상부의 저압탑(120)이 상호 구획된 형태일 수 있다. The main distillation column 100 may be in a form in which a high-pressure tower 110 at a lower portion maintaining a pressure of approximately 5kg/㎠G and a low-pressure tower 120 at an upper portion maintaining a pressure of approximately 0.5kg/㎠G are partitioned from each other. .

압축상태에서 극저온으로 냉각된 공기는 유입관로(111)를 통해 메인 증류탑(100) 하측의 고압탑(110)으로 유입된다. 이 공기는 압축기에 의해 압축된 후 정화장치를 거치면서 이산화탄소, 수증기 등의 불순물이 제거되고, 냉각기를 거쳐 극저온으로 냉각되어 액화 바로 전 상태, 즉 기액 혼합상태일 수 있다. 또 유입관로(111)의 공기 중 일부는 관로(112)를 통해 분기된 후 팽창장치(113)를 거쳐 더 낮은 온도로 냉각된 후 상측의 저압탑(120) 내부로 유입될 수 있다.The air cooled to a cryogenic temperature in the compressed state is introduced into the high-pressure column 110 below the main distillation column 100 through the inlet pipe 111. The air may be compressed by a compressor, and impurities such as carbon dioxide and water vapor are removed while passing through a purification device, and then cooled to cryogenic temperatures through a cooler to be in a state just before liquefaction, that is, a gas-liquid mixed state. In addition, some of the air in the inlet pipe 111 may be branched through the pipe 112 and then cooled to a lower temperature through the expansion device 113 and then introduced into the lower pressure tower 120 at the upper side.

고압탑(110) 내부로 유입된 공기의 성분들 중 상대적으로 끓는 점이 높은 산소는 고압탑(110) 내부온도의 영향으로 액화되면서 고압탑(110) 하부에 고이고, 상대적으로 끓는 점이 낮은 질소는 기체로 상승하여 고압탑(110)의 상부에 이른다. Among the components of the air introduced into the high-pressure tower 110, oxygen having a relatively high boiling point is liquefied under the influence of the internal temperature of the high-pressure tower 110 and accumulates under the high-pressure tower 110, and nitrogen having a relatively low boiling point is a gas. It rises to and reaches the upper part of the high-pressure tower (110).

고압탑(110) 상부로 상승한 질소는 저압탑(120) 하부에 설치된 응축기(130)에 의해 저압탑(120) 하측에 고이는 액체산소와 열교환하여 액화된 후 하강할 수 있다. 고압탑(110) 상부의 질소는 고압탑(110) 상부에서 이러한 과정을 통해 액체와 증기상태를 반복적으로 순환할 수 있다.Nitrogen rising to the upper part of the high-pressure tower 110 may be liquefied by heat exchange with liquid oxygen accumulated under the low-pressure tower 120 by the condenser 130 installed under the low-pressure tower 120 and then descend. Nitrogen above the high-pressure tower 110 may repeatedly circulate the liquid and vapor state through this process in the high-pressure tower 110.

고압탑(110) 상부의 기체 질소는 관로(115)를 통해 분리 배출된 후 저장될 수 있고, 고압탑(110) 상부의 액체질소 역시 다른 관로(116)를 통해 분리 배출된 후 저장될 수 있다. 고압탑(110) 상부로부터 관로(116)를 통해 분리 배출된 액체질소는 순아르곤 증류탑(300) 하측의 응축기(310)로 공급되어 순아르곤액을 냉각시키거나, 순아르곤 증류탑(300) 상측의 응축기(320)로 공급되어 기체 아르곤을 액화하는 용도로 이용될 수 있다.The gaseous nitrogen above the high-pressure tower 110 may be separated and discharged through the conduit 115 and then stored, and the liquid nitrogen above the high-pressure tower 110 may also be separated and discharged through the other conduit 116 and then stored. . The liquid nitrogen separated and discharged from the top of the high-pressure tower 110 through the conduit 116 is supplied to the condenser 310 below the pure argon distillation column 300 to cool the pure argon solution, or It may be supplied to the condenser 320 and used to liquefy gaseous argon.

고압탑(110) 하부에 고인 액체, 즉 다량의 산소를 포함하는 액체는 관로(117)를 통해 배출된 후 조아르곤 증류탑(200) 상부의 응축기(210) 쪽으로 공급된다. 이 액체는 공급과정에서 팽창수단(118)에 의해 압력이 낮아지고 온도가 하강하여 조아르곤 증류탑(200) 상부의 조아르곤 가스를 액화시키는 냉매로 이용된다. 그리고 열교환 후 조아르곤 증류탑(200) 상부로부터 배출된 가스는 관로(211)를 통해 다시 메인 증류탑(100) 상측의 저압탑(120) 중간 위치로 공급된다. 관로(117)를 통해 조아르곤 증류탑(200) 상부 쪽으로 이송되는 유체 중 일부는 압력조절밸브(119a)를 갖춘 분기관로(119)를 통하여 저압탑(120)의 중간위치로 공급될 수 있다. The liquid accumulated in the lower portion of the high-pressure tower 110, that is, a liquid containing a large amount of oxygen, is discharged through the pipe 117 and then supplied to the condenser 210 above the crude argon distillation column 200. This liquid is used as a refrigerant for liquefying the crude argon gas on the top of the crude argon distillation column 200 by lowering the pressure and lowering the temperature by the expansion means 118 during the supply process. In addition, the gas discharged from the top of the crude argon distillation column 200 after heat exchange is supplied back to the middle position of the low pressure column 120 above the main distillation column 100 through the conduit 211. Some of the fluid transferred to the upper portion of the crude argon distillation column 200 through the pipe 117 may be supplied to an intermediate position of the low pressure tower 120 through a branch pipe 119 equipped with a pressure control valve 119a.

저압탑(120)의 하측에 모이는 기체 산소는 관로(121)를 통해 외부로 배출 후 저장될 수 있고, 저압탑(120)의 하측에 고인 액체산소 역시 관로(122)를 통해 배출된 후 저장될 수 있다. 저압탑(120)으로부터 배출되는 산소는 배출과정에서 유입관로(111)의 공기를 냉각시키는 냉매로 이용될 수 있다. 저압탑(120) 상부의 질소 가스는 관로(123)를 통해 배출된 후 별도로 저장될 수 있고, 역시 배출과정에서 유입관로(111)로 유입되는 공기의 냉각을 위해 이용될 수 있다.The gaseous oxygen collected at the lower side of the low pressure tower 120 may be discharged to the outside through the conduit 121 and then stored, and the liquid oxygen accumulated in the lower side of the low pressure tower 120 may also be discharged through the conduit 122 and then stored. I can. Oxygen discharged from the low pressure tower 120 may be used as a refrigerant to cool the air in the inlet pipe 111 during the discharge process. The nitrogen gas above the low pressure tower 120 may be discharged through the conduit 123 and then stored separately, and may also be used for cooling the air flowing into the inlet conduit 111 during the discharge process.

저압탑(120)의 중간 영역에는 아르곤을 다량 함유하는 유체가 존재하는데, 이 유체는 관로(220)를 통해 배출되어 조아르곤 증류탑(200) 하부로 공급된다. 조아르곤 증류탑(200)으로 유입된 유체 중 기화하여 상승하는 가스, 즉 일부 산소를 포함하는 조아르곤 가스는 관로(330)를 통해 순아르곤 증류탑(300)의 중간으로 공급되고, 일부는 조아르곤 증류탑(200) 상부의 응축기(210)에 의해 액화된 상태로 환류한다. A fluid containing a large amount of argon is present in the middle region of the low pressure column 120, and the fluid is discharged through the pipe 220 and supplied to the lower portion of the crude argon distillation column 200. Among the fluid flowing into the crude argon distillation column 200, the gas that evaporates and rises, that is, the crude argon gas containing some oxygen is supplied to the middle of the pure argon distillation column 300 through the pipe 330, and part of the crude argon distillation column (200) It is refluxed in a liquefied state by the upper condenser 210.

순아르곤 증류탑(300)에서는 유입된 가스 중 아르곤 성분이 액화하여 하부에 고인다. 그리고 순아르곤 증류탑(300) 하부의 순아르곤액은 관로(340)를 통해 배출되어 저장된다. 순아르곤 증류탑(300) 내에서 기화하여 상승하는 가스는 응축기(320)에 의해 응축되어 환류하거나 외부로 배출된다.In the pure argon distillation column 300, the argon component of the introduced gas is liquefied and collected in the lower part. In addition, the pure argon liquid under the pure argon distillation column 300 is discharged and stored through the pipe 340. The gas that evaporates and rises in the pure argon distillation column 300 is condensed by the condenser 320 and is refluxed or discharged to the outside.

다량의 산소를 포함한 상태로 조아르곤 증류탑(200) 하부에 고이는 조아르곤액은 재 정류를 위해 조아르곤액 관로(230)를 통하여 메인 증류탑(100) 상측의 저압탑(120) 중간영역으로 이송된다. 이러한 조아르곤액의 이송을 위해 조아르곤액 관로(230)에는 조아르곤액을 기화시켜 송출압력으로 상승시키는 조아르곤액 이송장치(400)가 설치된다.The crude argon solution accumulated in the lower part of the crude argon distillation column 200 while containing a large amount of oxygen is transferred to the middle area of the low pressure column 120 above the main distillation column 100 through the crude argon solution pipe 230 for re-rectification. . In order to transfer the crude argon solution, a crude argon solution transfer device 400 is installed in the crude argon solution pipe 230 to evaporate the crude argon solution to increase the delivery pressure.

조아르곤액 이송장치(400)는 도 1과 도 2에 도시한 바와 같이, 조아르곤액 관로(230)에 설치되어 조아르곤액을 수용하는 제1 및 제2조아르곤액 탱크(410,420), 제1 및 제2조아르곤액 탱크(410,420)의 입구와 출구를 각각 개폐하는 제1 및 제2입구밸브(411,421)와 제1 및 제2출구밸브(412,422)를 구비한다. As shown in FIGS. 1 and 2, the crude argon solution transfer device 400 is installed in the crude argon solution pipe 230 to receive the crude argon solution, and the first and second argon solution tanks 410 and 420 First and second inlet valves 411 and 421 and first and second outlet valves 412 and 422 are provided to open and close the inlet and outlet of the first and second argon liquid tanks 410 and 420, respectively.

또 조아르곤액 이송장치(400)는 제1 및 제2조아르곤액 탱크(410,420)의 조아르곤액을 기화시켜 제1 및 제2조아르곤액 탱크(410,420)의 압력을 설정한 송출압력으로 상승시키는 제1기화장치(430) 및 제2기화장치(440), 제1조아르곤액 탱크(410)와 제2조아르곤액 탱크(420)의 압력을 각각 감지하는 제1압력센서(413)와 제2압력센서(423)를 구비한다. In addition, the crude argon solution transfer device 400 vaporizes the crude argon solution in the first and second argon solution tanks 410 and 420 to increase the pressure of the first and second argon solution tanks 410 and 420 to the set delivery pressure. A first pressure sensor 413 that senses the pressures of the first and second gasification devices 430 and 440, the first argon liquid tank 410 and the second argon liquid tank 420, respectively, and A second pressure sensor 423 is provided.

또 조아르곤액 이송장치(400)는 제1 및 제2입구밸브(411,421), 제1 및 제2출구밸브(412,422), 제1 및 제2기화장치(430,440)의 동작을 제어하는 제어부(450)를 포함한다.In addition, the crude argon solution transfer device 400 includes a control unit 450 that controls the operation of the first and second inlet valves 411 and 421, the first and second outlet valves 412 and 422, and the first and second vaporization devices 430 and 440. ).

제1조아르곤액 탱크(410)와 제2조아르곤액 탱크(420)는 조아르곤액을 번갈아 수용할 수 있도록 조아르곤액 관로(230)에 병렬로 설치된다. 제1입구밸브(411)는 제1조아르곤액 탱크(410)의 입구를 개폐하고, 제2입구밸브(421)는 제2조아르곤액 탱크(420)의 입구를 개폐한다. 제1출구밸브(412)는 제1조아르곤액 탱크(410)의 출구를 개폐하고, 제2출구밸브(422)는 제2조아르곤액 탱크(420)의 출구를 개폐한다. The Article 1 argon solution tank 410 and the Article 2 argon solution tank 420 are installed in parallel to the crude argon solution pipe 230 so as to alternately accommodate the crude argon solution. The first inlet valve 411 opens and closes the inlet of the first tank argon liquid tank 410, and the second inlet valve 421 opens and closes the inlet of the second tank argon liquid tank 420. The first outlet valve 412 opens and closes the outlet of the first argon liquid tank 410, and the second outlet valve 422 opens and closes the outlet of the second argon liquid tank 420.

제1기화장치(430)는 제1조아르곤액 탱크(410) 내부의 조아르곤액을 순환시키며 기화하고, 제2기화장치(440)는 제2조아르곤액 탱크(420) 내부의 조아르곤액을 순환시키며 기화한다.The first vaporization device 430 circulates and vaporizes the crude argon solution inside the first argon solution tank 410, and the second vaporization device 440 vaporizes the crude argon solution inside the second argon solution tank 420 Circulates and vaporizes.

제어부(450)는 제1조아르곤액 탱크(410)와 제2조아르곤액 탱크(420)에 조아르곤액이 번갈아 유입될 수 있도록 제1 및 제2입구밸브(411,412)가 번갈아 개폐되도록 제어할 수 있다. 또 제1조아르곤액 탱크(410)와 제2조아르곤액 탱크(420)의 조아르곤액이 번갈아 송출될 수 있도록 제1 및 제2출구밸브(421,422)가 번갈아 개폐되도록 제어할 수 있다.The control unit 450 controls the first and second inlet valves 411 and 412 to alternately open and close so that the crude argon solution alternately flows into the first argon liquid tank 410 and the second argon liquid tank 420. I can. In addition, the first and second outlet valves 421 and 422 may be controlled to be opened and closed alternately so that the crude argon solution of the first argon liquid tank 410 and the second argon liquid tank 420 can be alternately delivered.

제1기화장치(430)는 제1조아르곤액 탱크(410)의 조아르곤액을 대기와 열교환을 통해 기화시키는 제1열교환기(431), 제1조아르곤액 탱크(410)의 조아르곤액이 제1열교환기(431)로 공급되어 기화된 후 다시 제1조아르곤액 탱크(410)로 유입될 수 있도록 제1조아르곤액 탱크(410)와 제1열교환기(431)를 연결하는 제1기화관로(432), 제1기화관로(432)를 개폐해 유체의 흐름을 제어하는 제1기화제어밸브(433)를 구비한다. The first vaporization device 430 includes a first heat exchanger 431 that vaporizes the crude argon solution in the first argon solution tank 410 through heat exchange with the atmosphere, and the crude argon solution in the first argon solution tank 410 Article 1 connecting the first argon liquid tank 410 and the first heat exchanger 431 so that it can be supplied to the first heat exchanger 431 and vaporized and then flowed back into the first argon liquid tank 410 A first vaporization control valve 433 is provided to open and close the first vaporization pipe 432 and the first vaporization pipe 432 to control the flow of fluid.

제2기화장치(440)는 제2조아르곤액 탱크(420)의 조아르곤액을 대기와 열교환을 통해 기화시키는 제2열교환기(441), 제2조아르곤액 탱크(420)의 조아르곤액이 제2열교환기(441)로 공급되어 기화된 후 다시 제2조아르곤액 탱크(420)로 유입될 수 있도록 제2조아르곤액 탱크(420)와 제2열교환기(441)를 연결하는 제2기화관로(442), 제2기화관로(442)를 개폐해 유체의 흐름을 제어하는 제2기화제어밸브(443)를 구비한다.The second vaporization device 440 is a second heat exchanger 441 that vaporizes the crude argon solution of the second argon solution tank 420 through heat exchange with the atmosphere, and the crude argon solution of the second argon solution tank 420 Article 2 connecting the second argon liquid tank 420 and the second heat exchanger 441 so that it can be supplied to the second heat exchanger 441 and evaporated and then flowed back into the second argon liquid tank 420. A second vaporization control valve 443 is provided to open and close the second vaporization pipe 442 and the second vaporization pipe 442 to control the flow of fluid.

제어부(450)는 제1압력센서(413) 또는 제2압력센서(423)를 통해 제1조아르곤액 탱크(410) 또는 제2조아르곤액 탱크(420)의 압력을 판단하고, 제1 또는 제2조아르곤액 탱크(410,420)의 압력이 설정한 송출압력에 미달할 경우 제1기화제어밸브(433) 또는 제2기화제어밸브(443)를 개방해 조아르곤액의 기화가 이루어지도록 함으로써 각 조아르곤액 탱크의 압력이 상승하도록 할 수 있다. 그리고 제어부(450)는 제1 및 제2조아르곤액 탱크(410,420)의 압력이 설정한 송출압력에 이를 경우 제1 또는 제2출구밸브(412,422)를 개방해 조아르곤액의 송출이 이루어지도록 할 수 있다. The control unit 450 determines the pressure of the first argon liquid tank 410 or the second argon liquid tank 420 through the first pressure sensor 413 or the second pressure sensor 423, and Article 2 When the pressure of the argon solution tanks 410 and 420 is less than the set delivery pressure, the first vaporization control valve 433 or the second vaporization control valve 443 is opened to allow the crude argon solution to be vaporized. The pressure in the crude argon liquid tank can be increased. In addition, when the pressure of the first and second argon liquid tanks 410 and 420 reaches the set delivery pressure, the control unit 450 opens the first or second outlet valves 412 and 422 so that the crude argon solution is delivered. I can.

제어부(450)는 제1조아르곤액 탱크(410)의 내부 압력이 송출압력에 이르면 제1기화장치(430)의 동작을 멈추고 제1출구밸브(412)를 개방해 제1조아르곤액 탱크(410) 내의 조아르곤액이 저압탑(120)으로 공급되도록 할 수 있다. 마찬가지로, 제2조아르곤액 탱크(420)의 내부 압력이 송출압력에 이르면 제2기화장치(440)의 동작을 멈추고 제2출구밸브(422)를 개방해 제2조아르곤액 탱크(420) 내의 조아르곤액이 저압탑(120)으로 공급되도록 할 수 있다.When the internal pressure of the first argon liquid tank 410 reaches the delivery pressure, the control unit 450 stops the operation of the first vaporization device 430 and opens the first outlet valve 412 to open the first argon liquid tank ( The crude argon solution in 410 may be supplied to the low pressure tower 120. Likewise, when the internal pressure of the second argon liquid tank 420 reaches the delivery pressure, the operation of the second vaporization device 440 is stopped and the second outlet valve 422 is opened. The crude argon solution may be supplied to the low pressure tower 120.

이러한 조아르곤액 이송장치(400)는 제2입구밸브(421), 제2출구밸브(422), 제1출구밸브(412)를 폐쇄한 상태에서 제1입구밸브(411)를 개방하여 조아르곤 증류탑(200) 하부의 조아르곤액이 제1조아르곤액 탱크(410)로 유입되도록 할 수 있다. 제1조아르곤액 탱크(410)로 조아르곤액이 설정량 유입된 후에는 제1입구밸브(411)를 폐쇄한 후 제1기화장치(430)의 제1기화제어밸브(433)를 개방해 조아르곤액이 제1열교환기(431)를 거치며 기화하도록 함으로써 제1조아르곤액 탱크(410)의 압력이 상승되도록 할 수 있다. 제1조아르곤액 탱크(410)의 압력이 설정한 송출압력에 이르면, 제1출구밸브(412)를 개방해 제1조아르곤액 탱크(410) 내부의 조아르곤액이 메인 증류탑(100)의 저압탑(120)으로 송출되도록 할 수 있다. The crude argon solution transfer device 400 opens the first inlet valve 411 in a state where the second inlet valve 421, the second outlet valve 422, and the first outlet valve 412 are closed. The crude argon solution under the distillation column 200 may be introduced into the first crude argon solution tank 410. Article 1 After the set amount of crude argon solution flows into the argon solution tank 410, the first inlet valve 411 is closed and the first vaporization control valve 433 of the first vaporization device 430 is opened. By allowing the crude argon solution to vaporize through the first heat exchanger 431, the pressure in the first crude argon solution tank 410 may be increased. When the pressure in the Article 1 argon solution tank 410 reaches the set delivery pressure, the first outlet valve 412 is opened so that the crude argon solution inside the Article 1 argon solution tank 410 is transferred to the main distillation column 100. It can be sent to the low pressure tower 120.

이러한 조아르곤액 이송동작은 제어부(450)의 제어에 의해 제1조아르곤액 탱크(410) 쪽과 제2조아르곤액 탱크(420) 쪽에서 번갈아 이루어질 수 있고, 이를 통해 저압탑(120) 쪽으로 조아르곤액을 연속하여 송출할 수 있다.The crude argon solution transfer operation may be alternately performed in the first tank argon tank 410 and the second tank argon tank 420 under the control of the controller 450, and through this, the crude argon solution may be adjusted toward the low pressure tower 120. Argon solution can be delivered continuously.

본 실시 예는 복수의 조아르곤액 탱크 및 기화장치가 조아르곤액 관로(230)에 병렬로 배치되어 조아르곤액의 이송을 번갈아 수행할 수 있도록 하는 경우를 제시하였으나, 조아르곤액 탱크와 기화장치가 각각 하나로 구성될 수 있다. 이 경우 입구밸브, 출구밸브, 압력센서 등로 하나로 구성될 수 있다.In the present embodiment, a plurality of crude argon liquid tanks and vaporizers are arranged in parallel in the crude argon liquid pipe 230 to alternately transfer the crude argon liquid, but the crude argon liquid tank and the vaporizer Each can be composed of one. In this case, it may be composed of one inlet valve, outlet valve, and pressure sensor.

이처럼 본 실시 예에 따른 조아르곤액 이송장치(400)는 조아르곤 증류탑(200)의 조아르곤액을 기화시켜 승압하는 방식으로 메인 증류탑(100)의 저압탑(120)으로 이송하기 때문에 조아르곤액 이송에 따른 에너지 손실을 줄일 수 있다. 즉 펌프 등을 가동하지 않고서도 조아르곤액을 이송할 수 있기 때문에 에너지 손실을 줄일 수 있고, 펌프 등의 고장에 따른 조업 손실을 최소화할 수 있다.As described above, the crude argon solution transfer device 400 according to the present embodiment vaporizes the crude argon solution of the crude argon distillation column 200 to increase pressure, so that the crude argon solution is transferred to the low pressure column 120 of the main distillation column 100. It can reduce energy loss due to transport. That is, since the crude argon solution can be transferred without running the pump, energy loss can be reduced, and operation loss due to failure of the pump can be minimized.

100: 메인 증류탑, 110: 고압탑,
120: 저압탑, 200: 조아르곤 증류탑,
230: 조아르곤액 관로, 300: 순아르곤 증류탑,
400: 조아르곤 이송장치, 410: 제1조아르곤액 탱크,
411: 제1입구밸브, 412: 제1출구밸브,
413: 제1압력센서, 420: 제2조아르곤액 탱크,
421: 제2입구밸브, 422: 제2출구밸브,
423: 제2압력센서, 430: 제1기화장치,
431: 제1열교환기, 432: 제1기화관로,
433: 제1기화제어밸브, 440: 제2기화장치,
441: 제2열교환기, 442: 제2기화관로,
443: 제2기화제어밸브, 450: 제어부.100: main distillation column, 110: high pressure column,
120: low pressure column, 200: crude argon distillation column,
230: crude argon liquid pipe, 300: pure argon distillation column,
400: crude argon transfer device, 410: Article 1 argon liquid tank,
411: first inlet valve, 412: first outlet valve,
413: first pressure sensor, 420: Article 2 argon liquid tank,
421: second inlet valve, 422: second outlet valve,
423: second pressure sensor, 430: first vaporization device,
431: first heat exchanger, 432: first vaporization pipe,
433: first vaporization control valve, 440: second vaporization device,
441: second heat exchanger, 442: second gasification duct,
443: second vaporization control valve, 450: control unit.

Claims (8)

극저온 공기분리설비의 조아르곤 증류탑에 고인 조아르곤액을 메인 증류탑으로 이송하도록 안내하는 조아르곤액 관로;
상기 조아르곤액 관로에 설치되어 조아르곤액을 수용하는 적어도 하나의 조아르곤액 탱크;
상기 조아르곤액 탱크의 입구와 출구를 각각 개폐하는 입구밸브와 출구밸브; 및
상기 조아르곤액 탱크의 조아르곤액을 기화시켜 상기 조아르곤액 탱크의 압력을 설정한 송출압력으로 상승시키는 기화장치;를 포함하며,
상기 기화장치는,
상기 조아르곤액 탱크의 조아르곤액을 대기와 열교환을 통해 기화시키는 열교환기;
상기 조아르곤액 탱크의 조아르곤액이 상기 열교환기로 공급되어 기화된 후 상기 조아르곤액 탱크로 유입될 수 있도록 상기 조아르곤액 탱크와 상기 열교환기를 연결하는 기화관로; 및
상기 기화관로를 개폐해 유체의 흐름을 제어하는 기화제어밸브;를 포함하는 조아르곤액 이송장치.A crude argon solution pipe for guiding the crude argon solution accumulated in the crude argon distillation column of the cryogenic air separation facility to be transferred to the main distillation column;
At least one crude argon solution tank installed in the crude argon solution pipe to receive the crude argon solution;
An inlet valve and an outlet valve respectively opening and closing the inlet and outlet of the crude argon liquid tank; And
A vaporization device for vaporizing the crude argon solution in the crude argon solution tank to increase the pressure of the crude argon solution tank to a set delivery pressure; and
The vaporization device,
A heat exchanger for vaporizing the crude argon solution in the crude argon solution tank through heat exchange with the atmosphere;
A vaporization pipe path connecting the crude argon solution tank and the heat exchanger so that the crude argon solution of the crude argon solution tank is supplied to the heat exchanger to be vaporized and then introduced into the crude argon solution tank; And
Crude argon liquid transfer device comprising a; vaporization control valve for controlling the flow of the fluid by opening and closing the vaporization pipe. 제1항에 있어서,
상기 조아르곤액 탱크 내부의 압력을 감지하는 압력센서; 및
상기 입구밸브와 상기 출구밸브의 개폐 및 상기 기화장치의 동작을 제어하는 제어부;를 더 포함하는 조아르곤액 이송장치.The method of claim 1,
A pressure sensor sensing the pressure inside the crude argon liquid tank; And
The crude argon liquid transfer device further comprising a; a control unit for controlling the opening and closing of the inlet valve and the outlet valve and the operation of the vaporizer. 제2항에 있어서,
상기 제어부는 상기 조아르곤액 탱크의 내부 압력이 상기 송출압력에 이르면 상기 기화장치의 동작을 멈추고 상기 출구밸브를 개방하도록 제어하는 조아르곤액 이송장치.The method of claim 2,
When the internal pressure of the crude argon liquid tank reaches the delivery pressure, the control unit stops the operation of the vaporizer and controls to open the outlet valve. 삭제delete 제1항에 있어서,
상기 조아르곤액 탱크는 조아르곤액을 번갈아 수용할 수 있도록 상기 조아르곤액 관로에 병렬로 설치된 제1조아르곤액 탱크와 제2조아르곤액 탱크를 포함하고,
상기 입구밸브는 상기 제1조아르곤액 탱크의 입구를 개폐하는 제1입구밸브와, 상기 제2조아르곤액 탱크의 입구를 개폐하는 제2입구밸브를 포함하고,
상기 출구밸브는 상기 제1조아르곤액탱크의 출구를 개폐하는 제1출구밸브와, 상기 제2조아르곤액 탱크의 출구를 개폐하는 제2출구밸브를 포함하고,
상기 기화장치는 상기 제1조아르곤액 탱크의 조아르곤액을 기화시키는 제1기화장치와, 상기 제2조아르곤액 탱크의 조아르곤액을 기화시키는 제2기화장치를 포함하는 조아르곤액 이송장치.The method of claim 1,
The crude argon liquid tank includes a first tank argon liquid tank and a second tank argon liquid tank installed in parallel to the crude argon liquid pipe so as to alternately accommodate the crude argon liquid,
The inlet valve includes a first inlet valve for opening and closing the inlet of the first argon liquid tank, and a second inlet valve for opening and closing the inlet of the second argon liquid tank,
The outlet valve includes a first outlet valve for opening and closing the outlet of the first argon liquid tank, and a second outlet valve for opening and closing the outlet of the second argon liquid tank,
The vaporization device is a crude argon solution transfer device including a first vaporization device for vaporizing the crude argon solution in the first argon solution tank, and a second vaporization device for vaporizing the crude argon solution in the second argon solution tank . 제5항에 있어서,
상기 제1조아르곤액 탱크와 상기 제2조아르곤액 탱크의 압력을 각각 감지하는 제1압력센서와 제2압력센서; 및
상기 제1 및 제2입구밸브, 상기 제1 및 제2출구밸브, 상기 제1 및 제2기화장치의 동작을 제어하는 제어부;를 더 포함하는 조아르곤액 이송장치.The method of claim 5,
A first pressure sensor and a second pressure sensor respectively sensing pressures of the first argon liquid tank and the second argon liquid tank; And
The first and second inlet valves, the first and second outlet valves, and a control unit for controlling the operation of the first and second vaporization devices; crude argon solution transfer device further comprising a. 제6항에 있어서,
상기 제어부는 상기 제1조아르곤액 탱크와 상기 제2조아르곤액 탱크에 조아르곤액이 번갈아 유입될 수 있도록 상기 제1 및 제2입구밸브의 개폐를 제어하고, 상기 제1조아르곤액 탱크와 상기 제2조아르곤액 탱크의 조아르곤액이 번갈아 송출될 수 있도록 상기 제1 및 제2출구밸브의 개폐를 제어하는 조아르곤액 이송장치.The method of claim 6,
The control unit controls the opening and closing of the first and second inlet valves so that the crude argon solution alternately flows into the first argon solution tank and the second argon solution tank, and the first argon solution tank and The crude argon solution transfer device for controlling opening and closing of the first and second outlet valves so that the crude argon solution of the second argon solution tank is alternately delivered. 제1항 내지 제3항 및 제5항 내지 제7항 중 어느 한 항에 따른 조아르곤액 이송장치를 포함하는 극저온 공기분리설비.
A cryogenic air separation facility comprising the crude argon liquid transfer device according to any one of claims 1 to 3 and 5 to 7.
KR1020180073100A 2018-06-26 2018-06-26 Crude argon liquid transfer device and cryogenic air separation facility having the same KR102151725B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020180073100A KR102151725B1 (en) 2018-06-26 2018-06-26 Crude argon liquid transfer device and cryogenic air separation facility having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020180073100A KR102151725B1 (en) 2018-06-26 2018-06-26 Crude argon liquid transfer device and cryogenic air separation facility having the same

Publications (2)

Publication Number Publication Date
KR20200000879A KR20200000879A (en) 2020-01-06
KR102151725B1 true KR102151725B1 (en) 2020-09-03

Family

ID=69158885

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020180073100A KR102151725B1 (en) 2018-06-26 2018-06-26 Crude argon liquid transfer device and cryogenic air separation facility having the same

Country Status (1)

Country Link
KR (1) KR102151725B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008057804A (en) * 2006-08-29 2008-03-13 Kurio Air:Kk Manufacturing method of refined argon

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008057804A (en) * 2006-08-29 2008-03-13 Kurio Air:Kk Manufacturing method of refined argon

Also Published As

Publication number Publication date
KR20200000879A (en) 2020-01-06

Similar Documents

Publication Publication Date Title
US9605895B2 (en) Method and apparatus for producing high-purity liquefied carbon dioxide
KR20160055830A (en) Device for recovering vapours from a cryogenic tank
KR20060121187A (en) Apparatus and method for controlling temperature in a boil-off gas
JP2013536392A (en) Integrated liquid reservoir
US20160003527A1 (en) System and method for liquefying natural gas employing turbo expander
CN108369058B (en) System and method for treating vaporized gas from cryogenic liquid
CN109154471A (en) For handling the gas of the evaporation from cryogenic liquid and to the system of aeromotor supply pressurized gas
RU2761562C2 (en) Method and device for air separation by cryogenic distillation
US8671715B2 (en) He-3 recovery from natural helium by distillation
KR20160030400A (en) Method and device for oxygen production by low-temperature separation of air at variable energy consumption
KR102151725B1 (en) Crude argon liquid transfer device and cryogenic air separation facility having the same
JPH0842962A (en) Method and equipment for separating air at low temperature
US11162732B2 (en) Quench system for a refrigeration cycle of a liquefied natural gas facility and method of quenching
JP4688843B2 (en) Air separation device
US20230043513A1 (en) Process and plant for provision of oxygen product
US8683825B2 (en) He-3 recovery from natural helium by distillation
KR101330276B1 (en) Air separating apparatus and operating method for thereof
TWI665000B (en) Purification apparatus, and purification method for purifying carbon dioxide or nitrous oxide
JP7105085B2 (en) Air-to-liquid separation device and method for stopping operation of air-to-liquid separation device
JP2003120897A (en) Storage and supply device for carbon dioxide
JP3976188B2 (en) Product gas production method using air separation device
JP7175353B1 (en) Secondary refrigerant cooling circulation device and cooling circulation method
US20230184380A1 (en) Fuel-gas supply system and method for supplying a high-pressure gas injection engine with fuel gas
TW552391B (en) Process and apparatus for producing high-purity nitrogen by low-temperature fractionation of air
JP2000146432A (en) Refrigeration system for gasifying/reevaporating gas

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)