TWI797361B - Air separation device - Google Patents

Air separation device Download PDF

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Publication number
TWI797361B
TWI797361B TW108125811A TW108125811A TWI797361B TW I797361 B TWI797361 B TW I797361B TW 108125811 A TW108125811 A TW 108125811A TW 108125811 A TW108125811 A TW 108125811A TW I797361 B TWI797361 B TW I797361B
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distillation column
column
distillation
tower
crude argon
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TW108125811A
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Chinese (zh)
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TW202009434A (en
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廣瀬献兒
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法商液態空氣喬治斯克勞帝方法研究開發股份有限公司
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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
    • F25J3/04—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
    • F25J3/04721—Producing pure argon, e.g. recovered from a crude argon 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
    • F25J3/04654—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
    • F25J3/04703—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 being arranged in more than one vessel
    • 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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • 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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same 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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F25J3/04884—Arrangement of reboiler-condensers
    • 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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/40—Air or oxygen enriched air, i.e. generally less than 30mol% of O2
    • 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
    • F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
    • 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
    • F25J2215/58—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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/42—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being nitrogen
    • 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
    • F25J2235/50—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen
    • 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

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

Abstract

PROBLEM：To provide an air separation device capable of lowering the share of height associated with a condenser installed on top of a high pressure distillation column without reducing product production efficiency compared with a conventional air separation device, without enlarging the installation area, and without dividing a low pressure distillation column.
SOLUTION TO THE PROBLEM:The air separation device 1 comprises a first distillation column 11 provided with a first condenser 121 in a location apart from above the column top 113 thereof, and a lower pressure distillation column than the first distillation column 11; and is provided with a second distillation column 21 arranged next to the first distillation column 11, and at least a part of a crude argon distillation column or all of the crude argon distillation column arranged above the column top 113 of the first distillation column 11.

Description

空氣分離裝置 air separation unit

本發明涉及一種空氣分離裝置，尤其涉及一種能夠減小安裝面積和高度之結構配置。 The invention relates to an air separation device, in particular to a structural configuration capable of reducing the installation area and height.

專利文獻1揭露了一種用於生產比如氧氣、氮氣和氬氣等產品之空氣分離裝置。該空氣分離裝置包括用於高效生產該等產品的多個蒸餾塔，比如高壓蒸餾塔、低壓蒸餾塔和粗氬蒸餾塔。儘管從結構的觀點來看，該等蒸餾塔可以採用各種佈局配置，但是期望減小安裝面積和安裝高度以實現優化的結構。 Patent Document 1 discloses an air separation plant for producing products such as oxygen, nitrogen and argon. The air separation plant includes a plurality of distillation columns for efficient production of these products, such as a high pressure distillation column, a low pressure distillation column and a crude argon distillation column. Although the distillation columns can adopt various layout configurations from a structural point of view, it is desired to reduce the installation area and installation height to realize an optimized structure.

專利文獻2揭露了在高壓蒸餾塔的上部部分安裝粗氬蒸餾塔。然而，採用這種方法，安裝在高壓蒸餾塔頂部的冷凝器必須安裝在粗氬蒸餾塔的中間部分，這樣大幅增加了總安裝高度。 Patent Document 2 discloses installing a crude argon distillation column in the upper portion of the high-pressure distillation column. However, with this method, the condenser installed at the top of the high-pressure distillation column must be installed in the middle part of the crude argon distillation column, which greatly increases the total installation height.

專利文獻3揭露了在低壓蒸餾塔的上方或旁邊安裝粗氬蒸餾塔。但是，安裝在低壓蒸餾塔上方會大幅增加高度，而安裝在低壓蒸餾塔旁邊會擴大安裝面積。在低壓蒸餾塔被分割開的情況下，必須擴大高壓容器端板和分配器或安裝多個該等高壓容器端板和分配器，這樣增加了安裝成本。 Patent Document 3 discloses that a crude argon distillation column is installed above or beside the low-pressure distillation column. However, installing above the low-pressure distillation column will greatly increase the height, and installing next to the low-pressure distillation column will increase the installation area. In the case where the low-pressure distillation column is divided, it is necessary to enlarge the high-pressure vessel end plate and the distributor or install a plurality of such high-pressure vessel end plates and distributors, which increases the installation cost.

先前技術文獻 prior art literature 專利文獻 patent documents

專利文獻1 法國專利案號2964451 Patent Document 1 French Patent No. 2964451

專利文獻2 國際專利公開案號88/01037 Patent Document 2 International Patent Publication No. 88/01037

專利文獻3 日本專利案號6257656 Patent Document 3 Japanese Patent Application No. 6257656

針對這種情況，本發明的目的是提供一種空氣分離裝置，與傳統的空氣分離裝置相比，該空氣分離裝置能夠降低與安裝在高壓蒸餾塔頂部的冷凝器相關的高度份額，而不會降低產品生產效率、不會增大安裝面積、並且不會將低壓蒸餾塔分割開。 In view of this situation, the object of the present invention is to provide an air separation plant which, compared with conventional air separation plants, is able to reduce the height share associated with the condenser installed at the top of the high-pressure distillation column without reducing the High product production efficiency, no increase in installation area, and no division of the low-pressure distillation column.

本發明的空氣分離裝置設有：第一蒸餾塔(11)，在與塔頂部(113)上方分開的位置設有第一冷凝器(121，122)；第二蒸餾塔(21)，該第二蒸餾塔包括壓力低於第一蒸餾塔(11)的蒸餾塔，並且佈置在第一蒸餾塔(11)旁邊；以及佈置在第一蒸餾塔(11)的塔頂部(113)上方的粗氬蒸餾塔的至少一部分(31)或粗氬蒸餾塔的全部(30)。 The air separation plant of the present invention is provided with: the first distillation column (11), is provided with the first condenser (121,122) at the position that separates from tower top (113); The second distillation column (21), the first The second distillation column includes a distillation column with a pressure lower than that of the first distillation column (11), and is arranged next to the first distillation column (11); and crude argon arranged above the tower top (113) of the first distillation column (11) At least a part (31) of the distillation column or the whole (30) of the crude argon distillation column.

在本發明中：在該粗氬蒸餾塔的一部分佈置在塔頂部(113)上方的情況下，該粗氬蒸餾塔可以具有下蒸餾塔(31)和上蒸餾塔(32)，該下蒸餾塔佈置在塔頂部(113)上方，該上蒸餾塔佈置在第二蒸餾塔(21)和/或第一蒸餾塔(11)旁邊、並且在其塔頂部(323)內部或上方設有第二冷凝器(324)。 In the present invention: in the case where a part of the crude argon distillation column is arranged above the column top (113), the crude argon distillation column may have a lower distillation column (31) and an upper distillation column (32), the lower distillation column Arranged above the column top (113), the upper distillation column is arranged next to the second distillation column (21) and/or the first distillation column (11), and a second condensing column is provided in or above its column top (323) device (324).

在本發明中：在該粗氬蒸餾塔的全部佈置在塔頂部(113)上方的情況下，該粗氬蒸餾塔可以在其塔頂部(323)內部或上方設有第二冷凝器(324)，並且僅佈置在塔頂部(113)上方。 In the present invention: under the condition that the whole of the crude argon distillation column is arranged above the column top (113), the crude argon distillation column may be provided with a second condenser (324) inside or above the column top (323) , and only arranged above the tower top (113).

在本發明中：該第一冷凝器(121)可以沿對角線方向佈置在塔頂部(113)上方。 In the present invention: the first condenser (121) may be arranged above the top of the tower (113) along a diagonal direction.

在本發明中：該第一冷凝器(122)可以佈置在第二蒸餾塔(21)下方或其底部(211)上。 In the present invention: the first condenser (122) can be arranged below the second distillation column (21) or on the bottom (211).

在本發明中：第一蒸餾塔(11)可以包含或不包含第一冷凝器(121)，並且可以佈置在第一冷箱(10a)內部。 In the present invention: the first distillation column (11) may or may not include the first condenser (121), and may be arranged inside the first cold box (10a).

在本發明中：第一蒸餾塔(11)以用粗氬蒸餾塔的至少一部分或粗氬蒸餾塔的全部可以佈置在冷箱(10)內部；或第一蒸餾塔(11)可以佈置在冷箱(10)內部，並且該粗氬蒸餾塔的至少一部分或該粗氬蒸餾塔的全部可以佈置在與第一冷箱(10a)分開的冷箱內部。 In the present invention: the first distillation column (11) can be arranged inside the cold box (10) with at least a part of the crude argon distillation column or the whole of the crude argon distillation column; or the first distillation column (11) can be arranged in the cold box Inside the box (10), and at least a part of the crude argon distillation column or the whole of the crude argon distillation column may be arranged inside a cold box separate from the first cold box (10a).

在本發明中：還可以設有純氬蒸餾塔，該純氬蒸餾塔佈置在第一蒸餾塔(11)、第二蒸餾塔(21)和粗氬蒸餾塔中的一個或兩個或更多個的旁邊。 In the present invention: a pure argon distillation tower can also be provided, and this pure argon distillation tower is arranged in one or two or more of the first distillation tower (11), the second distillation tower (21) and the crude argon distillation tower next to each other.

根據本發明，與傳統的空氣分離裝置相比，該空氣分離裝置可以降低與安裝在高壓蒸餾塔頂部的冷凝器相關的高度份額，而不會降低產品生產效率、不會增大安裝面積、並且不會將低壓蒸餾塔分割開。這種高度的減小可以 是例如5米至10米，這樣可以顯著降低在安裝比如用於生產高純度氣體的非常高的蒸餾塔期間使用大型起重機等產生的安裝成本。 According to the present invention, the air separation plant can reduce the height share associated with the condenser installed at the top of the high-pressure distillation column compared with the conventional air separation plant, without reducing product production efficiency, without increasing the installation area, and The low pressure distillation column will not be split. This reduction in height can It is for example 5 to 10 meters, which can significantly reduce installation costs incurred during the installation of, for example, very tall distillation columns for the production of high-purity gases using large cranes and the like.

本發明的第一實施方式中的空氣分離裝置(1)設有：第一蒸餾塔(11)，該第一蒸餾塔佈置在第一冷箱(10a)內部，並且在其塔頂部(113)上方沿對角線方向設有第一冷凝器(121)；第二蒸餾塔(21)，該第二蒸餾塔佈置在第二冷箱(20)內部，包括壓力低於第一蒸餾塔(11)的蒸餾塔，並且佈置在第一蒸餾塔(11)旁邊；以及粗氬蒸餾塔(31，32)，該粗氬蒸餾塔具有下蒸餾塔(31)和上蒸餾塔(32)，該下蒸餾塔佈置在第一冷箱(10a)內部或第三冷箱(30a)內部並安裝在第一蒸餾塔(11)的塔頂部(113)上方(較佳的是豎直上方)，該上蒸餾塔佈置在第四冷箱(30b)內部並佈置在第二蒸餾塔(21)和/或第一蒸餾塔(11)旁邊、並且在塔頂部(323)內部或上方設有第二冷凝器(324)。 The air separation plant (1) in the first embodiment of the present invention is provided with: a first distillation column (11), which is arranged inside the first cold box (10a) and at its top (113) The top is provided with the first condenser (121) along the diagonal direction; the second distillation tower (21), which is arranged in the second cold box (20) inside, includes a pressure lower than that of the first distillation tower (11). ) distillation tower, and arranged next to the first distillation tower (11); and a crude argon distillation tower (31, 32), which has a lower distillation tower (31) and an upper distillation tower (32), the lower The distillation tower is arranged inside the first cold box (10a) or inside the third cold box (30a) and is installed above (preferably vertically above) the tower top (113) of the first distillation tower (11). The distillation tower is arranged inside the fourth cold box (30b) and next to the second distillation tower (21) and/or the first distillation tower (11), and a second condenser is arranged inside or above the top of the tower (323) (324).

第一實施方式的空氣分離裝置(1)還可以設有純氬蒸餾塔(36)，該純氬蒸餾塔佈置在第四冷箱(30b)內部並且佈置在上蒸餾塔(32)旁邊。 The air separation plant (1) of the first embodiment can also be provided with a pure argon distillation column (36) arranged inside the fourth cold box (30b) and next to the upper distillation column (32).

第一實施方式的空氣分離裝置(1)還可以設有：第一富氧氣體進料管線(L1)，用於將第一富氧氣體從第一冷凝器(121)供給到第二蒸餾塔(21)的底部(211)；第一富氧液體進料管線(L2)，用於藉由第一液體進料泵(5)將第一富氧液體從第二蒸餾塔(21)的底部(211)供給到第一冷凝器(121)；第二富氧氣體進料管線(L3)，用於將第二富氧氣體從第二蒸餾塔(21)的塔中間部分(213)(或低於中間部分的塔(212)位置)供給到下蒸餾塔(31)的底部(311)； 第二富氧液體進料管線(L4)，用於將第二富氧液體從下蒸餾塔(31)的底部(311)供給到第二蒸餾塔(21)的塔中間部分(213)(或低於中間部分的塔(212)位置)；第一富氬氣體進料管線(L5)，用於將第一富氬氣體從下蒸餾塔(31)的塔頂部(313)供給到上蒸餾塔(32)的底部(321)；以及第一富氬液體進料管線(L6)，用於藉由第二液體進料泵(6)將第一富氬液體從上蒸餾塔(32)的底部(321)供給到下蒸餾塔(31)的塔頂部(313)。 The air separation plant (1) of the first embodiment may also be provided with: a first oxygen-enriched gas feed line (L1), for supplying the first oxygen-enriched gas from the first condenser (121) to the second distillation column The bottom (211) of (21); the first oxygen-enriched liquid feed line (L2), is used for by the first liquid feed pump (5) the first oxygen-enriched liquid from the bottom of the second distillation column (21) (211) is supplied to the first condenser (121); the second oxygen-enriched gas feed line (L3) is used to feed the second oxygen-enriched gas from the tower middle part (213) (or The column (212) position below the middle part) is fed to the bottom (311) of the lower distillation column (31); The second oxygen-enriched liquid feed line (L4) is used to supply the second oxygen-enriched liquid from the bottom (311) of the lower distillation column (31) to the tower middle part (213) of the second distillation column (21) (or Lower than the tower (212) position of the middle part); the first argon-rich gas feed line (L5) is used to supply the first argon-rich gas from the tower top (313) of the lower distillation tower (31) to the upper distillation tower (32) at the bottom (321); and the first argon-rich liquid feed line (L6), for the first argon-rich liquid from the bottom of the upper distillation column (32) by the second liquid feed pump (6) (321) is supplied to the column top (313) of the lower distillation column (31).

根據第一實施方式的空氣分離裝置(1)，下蒸餾塔(31)的底部(311)被配置成位於比第二蒸餾塔(21)的塔中間部分(213)更高的位置。結果係，這種高度差可以用於在不使用泵的情況下供給第二富氧液體。 According to the air separation plant (1) of the first embodiment, the bottom (311) of the lower distillation column (31) is arranged at a higher position than the column middle portion (213) of the second distillation column (21). As a result, this height difference can be used to feed the second oxygen-enriched liquid without the use of pumps.

該裝置具有第一蒸餾塔(高壓塔)、第二蒸餾塔(低壓塔)和粗氬蒸餾塔，粗氬蒸餾塔包括一個或多個在空間上分離的部分(比如至少各自包含一個塔的上蒸餾塔和下蒸餾塔)，第二蒸餾塔(低壓塔)在高度方向上至少部分地佈置在第一蒸餾塔(高壓塔)旁邊，並且粗氬蒸餾塔的下蒸餾塔(低壓部分)至少佈置在第一蒸餾塔(高壓塔)上方。結果係，可以降低空氣分離裝置的高度。 The apparatus has a first distillation column (high pressure column), a second distillation column (low pressure column) and a crude argon distillation column comprising one or more spatially separated parts (such as at least one upper column each containing one column). distillation column and lower distillation column), the second distillation column (low pressure column) is at least partially arranged next to the first distillation column (high pressure column) in the height direction, and the lower distillation column (low pressure part) of the crude argon distillation column is at least arranged Above the first distillation column (high pressure column). As a result, the height of the air separation plant can be reduced.

在冷凝器沿對角線方向安裝在第一蒸餾塔(高壓塔)上方的情況下，可以減少與安裝在第一蒸餾塔的頂部的第一冷凝器相關的高度份額。 In case the condenser is installed diagonally above the first distillation column (high pressure column), the height share associated with the first condenser installed at the top of the first distillation column can be reduced.

第一冷凝器可以沿對角線方向安裝在第一蒸餾塔(高壓塔)上方，而無需藉由例如使用第五冷箱(50)的一部分來豎立新的鞍式支座，第五冷箱包含用於冷卻第二蒸餾塔(低壓塔)和原料空氣的主熱交換器(未示出)作為鞍式支座。 The first condenser can be installed diagonally above the first distillation column (high pressure column) without erecting a new saddle by, for example, using a part of the fifth cold box (50), the fifth cold box A main heat exchanger (not shown) for cooling the second distillation column (low pressure column) and feed air is included as a saddle mount.

設置管線用於將富氧液體從粗氬蒸餾塔的下蒸餾塔底部供給到第二蒸餾塔(低壓塔)的中間部分，並且設置管線用於將富氧氣體從第二蒸餾塔(低壓塔)的中間部分供給到粗氬蒸餾塔的下蒸餾塔下方。也就是說，藉由在第一蒸餾塔(高壓塔)上方安裝粗氬蒸餾塔的下蒸餾塔，液體可以藉由液體壓頭返回到第二 蒸餾塔(低壓塔)的返回點，而不需要如專利文獻3的結構那樣，藉由泵返回分成兩部分的低壓塔的下部部分的複雜且昂貴的過程。 A pipeline is provided for supplying oxygen-enriched liquid from the bottom of the lower distillation column of the crude argon distillation column to the middle part of the second distillation column (low pressure column), and a pipeline is provided for supplying oxygen-enriched gas from the second distillation column (low pressure column) The middle part is supplied to the bottom of the lower distillation column of the crude argon distillation column. That is to say, by installing the lower distillation column of the crude argon distillation column above the first distillation column (high pressure column), the liquid can be returned to the second distillation column by the liquid pressure head. The return point of the distillation column (low-pressure column) does not require a complicated and expensive process of returning the lower part of the low-pressure column divided into two by a pump as in the structure of Patent Document 3.

第一冷凝器(121)被配置成藉由使用第二蒸餾塔(低壓塔)的底部液體作為冷源來冷凝第一蒸餾塔(高壓塔)的頂部氣體。第二蒸餾塔(低壓塔)的底部液體例如藉由泵(5)從第二蒸餾塔(低壓塔)的底部(下部部分)供給到第一冷凝器(121)。 The first condenser (121) is configured to condense the top gas of the first distillation column (high pressure column) by using the bottom liquid of the second distillation column (low pressure column) as a heat sink. The bottom liquid of the second distillation column (low pressure column) is supplied to the first condenser (121) from the bottom (lower part) of the second distillation column (low pressure column), for example, by a pump (5).

本發明的第二實施方式中的空氣分離裝置(1)設有：第一蒸餾塔(11)，該第一蒸餾塔佈置在第一冷箱(10a)內部，並且在其塔頂部(113)上方沿對角線方向設有第一冷凝器(121)；第二蒸餾塔(21)，該第二蒸餾塔佈置在第二冷箱(20)內部，包括壓力低於第一蒸餾塔(11)的蒸餾塔，並且佈置在第一蒸餾塔(11)旁邊；以及粗氬蒸餾塔(30)，該粗氬蒸餾塔佈置在第一冷箱(10a)內部或第三冷箱內部，並且在其塔頂部(303)內部或上方設有第二冷凝器(304)。 The air separation plant (1) in the second embodiment of the present invention is provided with: a first distillation column (11), which is arranged inside the first cold box (10a) and at its top (113) The top is provided with the first condenser (121) along the diagonal direction; the second distillation tower (21), which is arranged in the second cold box (20) inside, includes a pressure lower than that of the first distillation tower (11). ) and arranged next to the first distillation column (11); and a crude argon distillation column (30), which is arranged inside the first cold box (10a) or inside the third cold box, and in A second condenser (304) is provided inside or above the tower top (303).

第二實施方式的空氣分離裝置(1)還可以設有佈置在粗氬蒸餾塔(30)旁邊的純氬蒸餾塔。 The air separation plant ( 1 ) of the second embodiment can also be provided with a pure argon distillation column arranged next to the crude argon distillation column ( 30 ).

第二實施方式的空氣分離裝置(1)還可以設有：第一富氧氣體進料管線(L1)，用於將第一富氧氣體從第一冷凝器(121)供給到第二蒸餾塔(21)的底部(211)；第一富氧液體進料管線(L2)，用於藉由第一液體進料泵(5)將第一富氧液體從第二蒸餾塔(21)的底部(211)供給到第一冷凝器(121)；第二富氧氣體進料管線(L3)，用於將第二富氧氣體從第二蒸餾塔(21)的塔中間部分(213)(或低於中間部分的塔(212)位置)供給到粗氬蒸餾塔(30)的底部(301)；以及 第二富氧液體進料管線(L4)，用於將第二富氧液體從粗氬蒸餾塔(30)的底部(301)供給到第二蒸餾塔(21)的塔中間部分(213)(或低於該中間部分的塔(212)位置)。 The air separation plant (1) of the second embodiment can also be provided with: a first oxygen-enriched gas feed line (L1), for supplying the first oxygen-enriched gas from the first condenser (121) to the second distillation column The bottom (211) of (21); the first oxygen-enriched liquid feed line (L2), is used for by the first liquid feed pump (5) the first oxygen-enriched liquid from the bottom of the second distillation column (21) (211) is supplied to the first condenser (121); the second oxygen-enriched gas feed line (L3) is used to feed the second oxygen-enriched gas from the tower middle part (213) (or The column (212) position below the middle part) is fed to the bottom (301) of the crude argon distillation column (30); and The second oxygen-enriched liquid feed line (L4) is used to supply the second oxygen-enriched liquid from the bottom (301) of the crude argon distillation column (30) to the column middle part (213) of the second distillation column (21) ( or lower than the tower (212) position of the middle section).

藉由第三實施方式，因為粗氬蒸餾塔沒有被分割開並且佈置在第一蒸餾塔上方，所以在高度方向上尺寸更大，但是安裝面積可以更小。 With the third embodiment, since the crude argon distillation column is not divided and arranged above the first distillation column, the size in the height direction is larger, but the installation area can be smaller.

本發明的第三實施方式中的空氣分離裝置(1)設有：佈置在第一冷箱(10a)內部的第一蒸餾塔(11)；第二蒸餾塔(21)，該第二蒸餾塔佈置在第二冷箱(20)內部，包括壓力低於第一蒸餾塔(11)的蒸餾塔，並且在其下部部分或底部(211)設有第一冷凝器(122)，該第一冷凝器佈置在第一蒸餾塔(11)旁邊並藉由管道連接到第一蒸餾塔(11)的塔頂部(113)；以及粗氬蒸餾塔(31，32)，該粗氬蒸餾塔具有下蒸餾塔(31)和上蒸餾塔(32)，該下蒸餾塔佈置在第一冷箱(10a)內部或第三冷箱(30a)內部並安裝在第一蒸餾塔(11)的塔頂部(113)上方，該上蒸餾塔佈置在第四冷箱(30b)內部並佈置在該第二蒸餾塔(21)和/或該第一蒸餾塔(11)旁邊、並且在塔頂部(323)內部或上方設有第二冷凝器(324)。 The air separation plant (1) in the third embodiment of the present invention is provided with: a first distillation column (11) arranged inside the first cold box (10a); a second distillation column (21), the second distillation column Arranged inside the second cold box (20), comprising a distillation column having a lower pressure than the first distillation column (11) and having a first condenser (122) in its lower part or bottom (211), the first condenser The device is arranged beside the first distillation column (11) and is connected to the tower top (113) of the first distillation column (11) by pipelines; and the crude argon distillation column (31, 32), which has a lower distillation Tower (31) and upper distillation tower (32), this lower distillation tower is arranged in the first cold box (10a) inside or the 3rd cold box (30a) inside and is installed in the tower top (113 of the first distillation tower (11) ), the upper distillation column is arranged inside the fourth cold box (30b) and arranged next to the second distillation column (21) and/or the first distillation column (11), and inside the tower top (323) or A second condenser (324) is provided above.

第三實施方式的空氣分離裝置(1)還可以設有純氬蒸餾塔(36)，該純氬蒸餾塔佈置在第四冷箱(30b)內部並且佈置在上蒸餾塔(32)旁邊。 The air separation plant (1) of the third embodiment can also be provided with a pure argon distillation column (36) arranged inside the fourth cold box (30b) and next to the upper distillation column (32).

第三實施方式的空氣分離裝置(1)還可以設有：第一富氮氣體進料管線(L11)，用於將第一富氮氣體從第一蒸餾塔(11)的塔頂部(113)供給到第一冷凝器(122)；第一富氮液體進料管線(L21)，用於藉由第一液體進料泵(5)從將第一富氮液體從第一冷凝器(122)供給到第一蒸餾塔(11)的塔頂部(113)； 第一富氧氣體進料管線(L3)，用於將第一富氧氣體從第二蒸餾塔(21)的塔中間部分(213)供給到下蒸餾塔(31)的底部(311)；第一富氧液體進料管線(L4)，用於將第一富氧液體從下蒸餾塔(31)的底部(311)供給到第二蒸餾塔(21)的塔中間部分(213)；第一富氬氣體進料管線(L5)，用於將第一富氬氣體從下蒸餾塔(31)的塔頂部(313)供給到上蒸餾塔(32)的底部(321)；以及第一富氬液體進料管線(L6)，用於藉由第二液體進料泵(6)將第一富氬液體從上蒸餾塔(32)的底部(321)供給到下蒸餾塔(31)的塔頂部(313)。 The air separation plant (1) of the third embodiment can also be provided with: the first nitrogen-enriched gas feed line (L11), for the first nitrogen-enriched gas from the tower top (113) of the first distillation column (11) Supply to the first condenser (122); the first nitrogen-rich liquid feed line (L21), is used for by the first liquid feed pump (5) from the first nitrogen-rich liquid from the first condenser (122) feed to the top (113) of the first distillation column (11); The first oxygen-enriched gas feed line (L3) is used to supply the first oxygen-enriched gas to the bottom (311) of the lower distillation column (31) from the tower middle part (213) of the second distillation tower (21); An oxygen-enriched liquid feed line (L4), used to supply the first oxygen-enriched liquid from the bottom (311) of the lower distillation column (31) to the tower middle part (213) of the second distillation column (21); An argon-rich gas feed line (L5), for supplying the first argon-rich gas from the tower top (313) of the lower distillation column (31) to the bottom (321) of the upper distillation column (32); and the first argon-rich gas A liquid feed line (L6) for feeding the first argon-rich liquid from the bottom (321) of the upper distillation column (32) to the top of the lower distillation column (31) by means of the second liquid feed pump (6) (313).

根據第三實施方式的空氣分離裝置(1)，下蒸餾塔(31)的底部(311)被配置成位於比第二蒸餾塔(21)的塔中間部分(213)更高的位置。結果係，這種高度差可以用於在不使用泵的情況下供給第二富氧液體。 According to the air separation plant (1) of the third embodiment, the bottom (311) of the lower distillation column (31) is arranged at a higher position than the column middle part (213) of the second distillation column (21). As a result, this height difference can be used to feed the second oxygen-enriched liquid without the use of pumps.

該裝置具有第一蒸餾塔(高壓塔)、第二蒸餾塔(低壓塔)和粗氬蒸餾塔，粗氬蒸餾塔包括一個或多個在空間上分離的部分(比如至少各自包含一個塔的上蒸餾塔和下蒸餾塔)，第二蒸餾塔(低壓塔)在高度方向上至少部分地佈置在第一蒸餾塔(高壓塔)旁邊，並且粗氬蒸餾塔的下蒸餾塔(低壓部分)至少佈置在第一蒸餾塔(高壓塔)上方。結果係，可以降低空氣分離裝置的高度。 The apparatus has a first distillation column (high pressure column), a second distillation column (low pressure column) and a crude argon distillation column comprising one or more spatially separated parts (such as at least one upper column each containing one column). distillation column and lower distillation column), the second distillation column (low pressure column) is at least partially arranged next to the first distillation column (high pressure column) in the height direction, and the lower distillation column (low pressure part) of the crude argon distillation column is at least arranged Above the first distillation column (high pressure column). As a result, the height of the air separation plant can be reduced.

第一冷凝器(122)佈置在第二蒸餾塔(21)下方。也就是說，可以減小與安裝在第一蒸餾塔的塔頂上的第一冷凝器相關的高度份額。 The first condenser (122) is arranged below the second distillation column (21). That is to say, the height contribution associated with the first condenser installed at the top of the first distillation column can be reduced.

第一冷凝器(122)被配置成藉由使用第二蒸餾塔(21)的底部液體作為冷源來冷凝第一蒸餾塔(11)的塔頂氣體。 The first condenser (122) is configured to condense the overhead gas of the first distillation column (11) by using the bottom liquid of the second distillation column (21) as a heat sink.

由第一冷凝器(122)液化的第一蒸餾塔(11)的塔頂氣體/液體作為回流液體例如藉由泵(5)供給到第一蒸餾塔(11)的塔頂部(113)。 The overhead gas/liquid of the first distillation column (11) liquefied by the first condenser (122) is supplied to the column top (113) of the first distillation column (11) as reflux liquid, for example, by a pump (5).

本發明的第四實施方式中的空氣分離裝置(1)設有：佈置在第一冷箱(10a)內部的第一蒸餾塔(11)； 第二蒸餾塔(21)，該第二蒸餾塔佈置在第二冷箱(20)內部，包括壓力低於第一蒸餾塔(11)的蒸餾塔，並且在其下部部分或底部(211)設有第一冷凝器(122)，該第一冷凝器佈置在第一蒸餾塔(11)旁邊並藉由管道連接到第一蒸餾塔(11)的塔頂部(113)；以及粗氬蒸餾塔(30)，該粗氬蒸餾塔佈置在第一冷箱(10a)內部或第三冷箱內部，並且在其塔頂部(303)內部或上方設有第二冷凝器(304)。 The air separation plant (1) in the fourth embodiment of the present invention is provided with: a first distillation column (11) arranged inside the first cold box (10a); The second distillation column (21), which is arranged inside the second cold box (20), comprises a distillation column at a lower pressure than the first distillation column (11) and is provided in its lower part or bottom (211) There is a first condenser (122), which is arranged next to the first distillation column (11) and connected to the top (113) of the first distillation column (11) by piping; and a crude argon distillation column ( 30), the crude argon distillation column is arranged inside the first cold box (10a) or inside the third cold box, and a second condenser (304) is arranged inside or above the column top (303).

第四實施方式的空氣分離裝置(1)還可以設有佈置在粗氬蒸餾塔(30)旁邊的純氬蒸餾塔。 The air separation plant ( 1 ) of the fourth embodiment can also be provided with a pure argon distillation column arranged next to the crude argon distillation column ( 30 ).

第四實施方式的空氣分離裝置(1)還可以設有：第一富氮氣體進料管線(L11)，用於將第一富氮氣體從第一蒸餾塔(11)的塔頂部(113)供給到第一冷凝器(122)；第一富氮液體進料管線(L21)，用於藉由第一液體進料泵(5)從將第一富氮液體從第一冷凝器(122)供給到第一蒸餾塔(11)的塔頂部(113)；第一富氧氣體進料管線(L3)，用於將第一富氧氣體從第二蒸餾塔(21)的塔中間部分(213)供給到下蒸餾塔(31)的底部(311)；以及第一富氧液體進料管線(L4)，用於將第一富氧液體從下蒸餾塔(31)的底部(311)供給到第二蒸餾塔(21)的塔中間部分(213)。 The air separation plant (1) of the fourth embodiment can also be provided with: the first nitrogen-enriched gas feed line (L11), for the first nitrogen-enriched gas from the tower top (113) of the first distillation column (11) Supply to the first condenser (122); the first nitrogen-rich liquid feed line (L21), is used for by the first liquid feed pump (5) from the first nitrogen-rich liquid from the first condenser (122) Supply to the top (113) of the first distillation column (11); the first oxygen-enriched gas feed line (L3) is used to feed the first oxygen-enriched gas from the tower middle part (213) of the second distillation column (21) ) is supplied to the bottom (311) of the lower distillation column (31); and the first oxygen-enriched liquid feed line (L4) is used to supply the first oxygen-enriched liquid to the The column middle part (213) of the second distillation column (21).

藉由第四實施方式，由於粗氬蒸餾塔不被分割開並且佈置在第一蒸餾塔上方，因此在高度方向上的尺寸更大，但安裝面積可以更小。 With the fourth embodiment, since the crude argon distillation column is not divided and arranged above the first distillation column, the size in the height direction is larger, but the installation area can be smaller.

1:空氣分離裝置 1: Air separation device

5:第一液體進料泵 5: First liquid feed pump

6:第二液體進料泵 6: Second liquid feed pump

10a:第一冷箱 10a: First cold box

10b:第一子冷箱 10b: The first sub-cooler

11:第一蒸餾塔 11: The first distillation column

113:塔頂部 113: Tower top

121、122:第一冷凝器 121, 122: the first condenser

20:第二冷箱 20: Second cold box

21:第二蒸餾塔 21: The second distillation column

211:底部 211: bottom

212:塔 212: tower

213:塔中間部分 213: The middle part of the tower

30:粗氬蒸餾塔 30: crude argon distillation tower

30a:第三冷箱 30a: The third cold box

30b:第四冷箱 30b: The fourth cold box

31:下蒸餾塔 31: Lower distillation tower

311:底部 311: bottom

313:塔頂部 313: tower top

32:上蒸餾塔 32: Upper distillation tower

321:底部 321: bottom

323:塔頂部 323: tower top

324:第二冷凝器 324: Second condenser

36:純氬蒸餾塔 36: Pure argon distillation tower

50:第五冷箱 50: fifth cold box

L1、L2:第一富氧氣體進料管線 L1, L2: the first oxygen-enriched gas feed pipeline

L3、L4:第二富氧氣體進料管線 L3, L4: Second oxygen-enriched gas feed line

L5、L6:第一富氬氣體進料管線 L5, L6: the first argon-enriched gas feed line

[圖1A]係示出實施方式1的空氣分離裝置之簡圖； [圖1B]係示出實施方式2的空氣分離裝置之簡圖；[圖2A]係示出實施方式3的空氣分離裝置之簡圖；以及[圖2B]係示出實施方式4的空氣分離裝置之簡圖。 [FIG. 1A] is a schematic diagram showing the air separation plant of Embodiment 1; [Fig. 1B] is a schematic diagram showing the air separation device of Embodiment 2; [Fig. 2A] is a schematic diagram showing the air separation device of Embodiment 3; and [Fig. 2B] is a schematic diagram showing the air separation device of Embodiment 4 A schematic diagram of the device.

下文將描述本發明的若干實施方式。下文所述的實施方式描述了本發明的實例。本發明決不限於以下實施方式，而是包括在不改變本發明的本質的範圍內執行的各種修改。下文描述的構造不一定是本發明的所有必要構造。 Several embodiments of the invention will be described below. The embodiments described below describe examples of the present invention. The present invention is by no means limited to the following embodiments, but includes various modifications performed within a range that does not change the essence of the present invention. The configurations described below are not necessarily all necessary configurations of the present invention.

實施方式1 Embodiment 1

將使用圖1A來描述實施方式1的空氣分離裝置1。 The air separation plant 1 of Embodiment 1 will be described using FIG. 1A .

空氣分離裝置1具有第一蒸餾塔(高壓塔)、第二蒸餾塔(低壓塔)和粗氬蒸餾塔，該粗氬蒸餾塔包括一個或多個在空間上分離的部分(比如至少各自包含一個塔的上蒸餾塔和下蒸餾塔)。第二蒸餾塔(低壓塔)在高度方向上至少部分地佈置在第一蒸餾塔(高壓塔)旁邊，並且粗氬蒸餾塔的下蒸餾塔(低壓部分)至少佈置在第一蒸餾塔(高壓塔)上方。結果係，可以降低空氣分離裝置的高度。 The air separation plant 1 has a first distillation column (high pressure column), a second distillation column (low pressure column) and a crude argon distillation column comprising one or more spatially separated sections (such as at least one each The upper distillation column and the lower distillation column of the tower). The second distillation column (low pressure column) is at least partially arranged next to the first distillation column (high pressure column) in the height direction, and the lower distillation column (low pressure part) of the crude argon distillation column is arranged at least next to the first distillation column (high pressure column) ) above. As a result, the height of the air separation plant can be reduced.

第一蒸餾塔11佈置在第一冷箱10a內部，並且在其塔頂部113上方沿對角線方向設有第一冷凝器121(佈置成在安裝期間沒有豎直堆疊)。 The first distillation column 11 is arranged inside the first cold box 10a, and a first condenser 121 (arranged without vertical stacking during installation) is provided in a diagonal direction above its column top 113 .

第一冷凝器121容納在第一子冷箱10b內部。使用第二蒸餾塔21的一部分或第五冷箱50來安裝第一冷凝器121，第五冷箱包含用於冷卻第二蒸餾塔和原料空氣的主熱交換器作為鞍式支座。第一冷凝器121的高度配置成使得在不使用泵的情況下使液體在高於塔頂部113的位置流動。 The first condenser 121 is accommodated inside the first sub-cooler 10b. The first condenser 121 is mounted using part of the second distillation column 21 or a fifth cold box 50 containing the main heat exchanger for cooling the second distillation column and feed air as a saddle. The height of the first condenser 121 is configured such that the liquid flows at a position higher than the column top 113 without using a pump.

第二蒸餾塔21佈置在第二冷箱20內部，包括比第一蒸餾塔11壓力更低的蒸餾塔，並且佈置在第一蒸餾塔11旁邊。 The second distillation column 21 is arranged inside the second cold box 20 , includes a distillation column with a lower pressure than that of the first distillation column 11 , and is arranged beside the first distillation column 11 .

粗氬蒸餾塔包括在空間上分離的下蒸餾塔31和上蒸餾塔32。 The crude argon distillation column includes a lower distillation column 31 and an upper distillation column 32 which are spatially separated.

下蒸餾塔31佈置在第三冷箱30a內部，並且豎直安裝在第一蒸餾塔11的塔頂部113上方。在單獨的實施方式中，下蒸餾塔31可以佈置在第一冷箱10a內部。 The lower distillation column 31 is arranged inside the third cold box 30 a and installed vertically above the column top 113 of the first distillation column 11 . In a separate embodiment, the lower distillation column 31 may be arranged inside the first cold box 10a.

上蒸餾塔32佈置在第四冷箱30b內部並佈置在第二蒸餾塔21旁邊，並且在其塔頂部323上方設有第二冷凝器324。 The upper distillation column 32 is arranged inside the fourth cold box 30 b and beside the second distillation column 21 , and has a second condenser 324 above its column top 323 .

純氬蒸餾塔36佈置在第四冷箱30b內部，並且安裝在上蒸餾塔32旁邊。 The pure argon distillation column 36 is arranged inside the fourth cold box 30 b and installed beside the upper distillation column 32 .

純氬蒸餾塔36對於空氣分離裝置1而言不是必需的，可以省略。 The pure argon distillation column 36 is not necessary for the air separation plant 1 and can be omitted.

第一富氧氣體進料管線L1係用於將第一富氧氣體從第一冷凝器121供給到第二蒸餾塔21的底部211的管線。第一富氧氣體進料管線L1包括管和閥(未示出)。 The first oxygen-enriched gas feed line L1 is a line for supplying the first oxygen-enriched gas from the first condenser 121 to the bottom 211 of the second distillation column 21 . The first oxygen-enriched gas feed line L1 includes pipes and valves (not shown).

第一富氧液體進料管線L2係用於藉由第一液體進料泵5將第一富氧液體從第二蒸餾塔21的底部211供給到第一冷凝器121的管線。第一富氧液體進料管線L2包括管和閥(未示出)。 The first oxygen-enriched liquid feed line L2 is a line for feeding the first oxygen-enriched liquid from the bottom 211 of the second distillation column 21 to the first condenser 121 by the first liquid feed pump 5 . The first oxygen-enriched liquid feed line L2 includes pipes and valves (not shown).

第二富氧氣體進料管線L3係用於將第二富氧氣體從第二蒸餾塔21的塔中間部分213供給到下蒸餾塔31的底部311的管線。第二富氧氣體進料管線L3包括管和閥(未示出)。 The second oxygen-enriched gas feed line L3 is a line for supplying the second oxygen-enriched gas from the column middle portion 213 of the second distillation column 21 to the bottom 311 of the lower distillation column 31 . The second oxygen-enriched gas feed line L3 includes pipes and valves (not shown).

第二富氧液體進料管線L4係用於將第二富氧液體從下蒸餾塔31的底部311供給到第二蒸餾塔21的塔中間部分213的管線。第二富氧液體進料管線L4包括管和閥(未示出)。 The second oxygen-rich liquid feed line L4 is a line for feeding the second oxygen-rich liquid from the bottom 311 of the lower distillation column 31 to the column middle part 213 of the second distillation column 21 . The second oxygen-enriched liquid feed line L4 includes pipes and valves (not shown).

下蒸餾塔31的底部311位於比第二蒸餾塔21的塔中間部分213更高的位置，並且該高度差用於在不使用泵的情況下供給第二富氧液體。 The bottom 311 of the lower distillation column 31 is located at a higher position than the column middle portion 213 of the second distillation column 21, and this height difference is used to supply the second oxygen-enriched liquid without using a pump.

第一富氬氣體進料管線L5係用於將第一富氬氣體從下蒸餾塔31的塔頂部313供給到上蒸餾塔32的底部321的管線。第一富氬氣體進料管線L5包括管和閥(未示出)。 The first argon-rich gas feed line L5 is a line for supplying the first argon-rich gas from the column top 313 of the lower distillation column 31 to the bottom 321 of the upper distillation column 32 . The first argon-enriched gas feed line L5 includes pipes and valves (not shown).

第一富氬液體進料管線L6係用於將第一富氬液體從上蒸餾塔32的底部321供給到下蒸餾塔31的塔頂部313的管線。第一富氬液體進料管線L6包括管和閥(未示出)。 The first argon-rich liquid feed line L6 is a line for feeding the first argon-rich liquid from the bottom 321 of the upper distillation column 32 to the column top 313 of the lower distillation column 31 . The first argon-enriched liquid feed line L6 includes pipes and valves (not shown).

雖然圖1A未示出比如用於冷卻第二蒸餾塔(低壓塔)和原料空氣的主熱交換器、用於壓縮原料空氣的壓縮機和膨脹渦輪的零件，但這並不意味著在實施方式1中該等零件不是必需的。當然，該等部件也是實施方式1中的空氣分離裝置1的一些部件(並且同樣用於下文描述的實施方式)。 Although Figure 1A does not show parts such as the main heat exchanger for cooling the second distillation column (low pressure column) and the feed air, the compressor for compressing the feed air, and the expansion turbine, this is not meant to imply The parts in 1 are not necessary. Of course, these components are also some of the components of the air separation plant 1 in Embodiment 1 (and are also used in the embodiments described below).

實施方式2 Embodiment 2

將使用圖1B來描述實施方式2的空氣分離裝置1。將要描述與實施方式1不同的構造，並且將不再描述相同的構造或僅簡要描述相同的構造。 The air separation plant 1 of Embodiment 2 will be described using FIG. 1B . A configuration different from Embodiment 1 will be described, and the same configuration will not be described again or will be described only briefly.

粗氬蒸餾塔30佈置在第一冷箱10a內部，並且在其塔頂部303內部或上方設有第二冷凝器304。粗氬蒸餾塔30也可以佈置在與第一冷箱10a分開的冷箱內部。 The crude argon distillation column 30 is arranged inside the first cold box 10a, and has a second condenser 304 inside or above its column top 303 . The crude argon distillation column 30 may also be arranged inside a cold box separate from the first cold box 10a.

純氬蒸餾塔在實施方式2中不是必需的，可以省略。 The pure argon distillation column is not necessary in Embodiment 2 and can be omitted.

對於第二實施方式，因為粗氬蒸餾塔沒有被分割開並且佈置在第一蒸餾塔上方，所以在高度方向上尺寸更大，但是安裝面積可以更小。 For the second embodiment, since the crude argon distillation column is not divided and arranged above the first distillation column, the size in the height direction is larger, but the installation area can be smaller.

實施方式3 Embodiment 3

將使用圖2A來描述實施方式3的空氣分離裝置1。 The air separation plant 1 of Embodiment 3 will be described using FIG. 2A .

空氣分離裝置1具有第一蒸餾塔(高壓塔)、第二蒸餾塔(低壓塔)和粗氬蒸餾塔，該粗氬蒸餾塔包括一個或多個在空間上分離的部分(比如至少各自包含一個塔的上蒸餾塔和下蒸餾塔)。第二蒸餾塔(低壓塔)在高度方向上至少部分地佈置在第一蒸餾塔(高壓塔)旁邊，並且粗氬蒸餾塔的下蒸餾塔(低壓部分)至少佈置在第一蒸餾塔(高壓塔)上方。結果係，可以降低空氣分離裝置的高度。 The air separation plant 1 has a first distillation column (high pressure column), a second distillation column (low pressure column) and a crude argon distillation column comprising one or more spatially separated sections (such as at least one each The upper distillation column and the lower distillation column of the tower). The second distillation column (low pressure column) is at least partially arranged next to the first distillation column (high pressure column) in the height direction, and the lower distillation column (low pressure part) of the crude argon distillation column is arranged at least next to the first distillation column (high pressure column) ) above. As a result, the height of the air separation plant can be reduced.

第一蒸餾塔11佈置在第一冷箱10a內部。 The first distillation column 11 is arranged inside the first cold box 10a.

第二蒸餾塔21佈置在第二冷箱20內部，包括比第一蒸餾塔11壓力更低的蒸餾塔，並且在其底部211設有第一冷凝器122，該第一冷凝器佈置在第一蒸餾塔11旁邊並且藉由管道連接到第一蒸餾塔11的塔頂部113。 The second distillation column 21 is arranged inside the second cold box 20, comprises a distillation column with a lower pressure than the first distillation column 11, and is provided with a first condenser 122 at its bottom 211, and the first condenser is arranged at the first Next to the distillation column 11 and connected to the column top 113 of the first distillation column 11 by a pipeline.

粗氬蒸餾塔具有：下蒸餾塔31，該下蒸餾塔佈置在第三冷箱30a內部並安裝在第一蒸餾塔11的塔頂部113上方；以及上蒸餾塔32，該上蒸餾塔佈置在第四冷箱30b內部並佈置在第二蒸餾塔21旁邊，並且在其塔頂部323上方設有第二冷凝器324。 The crude argon distillation column has: a lower distillation column 31 arranged inside the third cold box 30a and installed above the column top 113 of the first distillation column 11; and an upper distillation column 32 arranged at the second The four cold boxes 30b are arranged inside and next to the second distillation column 21, and a second condenser 324 is arranged above the top 323 of the column.

純氬蒸餾塔36佈置在第四冷箱30b內部，並且安裝在上蒸餾塔32旁邊。 The pure argon distillation column 36 is arranged inside the fourth cold box 30 b and installed beside the upper distillation column 32 .

純氬蒸餾塔36對於空氣分離裝置1而言不是必需的，可以省略。 The pure argon distillation column 36 is not necessary for the air separation plant 1 and can be omitted.

第一富氮氣體進料管線L11係用於將第一富氮氣體從第一蒸餾塔11的塔頂部113供給到第一冷凝器122的管線。第一富氮氣體進料管線L11包括管和閥(未示出)。 The first nitrogen-rich gas feed line L11 is a line for supplying the first nitrogen-rich gas from the column top 113 of the first distillation column 11 to the first condenser 122 . The first nitrogen-enriched gas feed line L11 includes pipes and valves (not shown).

第一富氮液體進料管線L21係用於藉由第一液體進料泵5將第一富氮液體從第一冷凝器122供給到第一蒸餾塔11的塔頂部113的管線。第一富氮液體進料管線L21包括管和閥(未示出)。 The first nitrogen-rich liquid feed line L21 is a line for feeding the first nitrogen-rich liquid from the first condenser 122 to the column top 113 of the first distillation column 11 by the first liquid feed pump 5 . The first nitrogen-enriched liquid feed line L21 includes pipes and valves (not shown).

第一富氧氣體進料管線L3係用於將第一富氧氣體從第二蒸餾塔21的塔中間部分213供給到下蒸餾塔31的底部311的管線。第一富氧氣體進料管線L3包括管和閥(未示出)。 The first oxygen-enriched gas feed line L3 is a line for supplying the first oxygen-enriched gas from the column middle portion 213 of the second distillation column 21 to the bottom 311 of the lower distillation column 31 . The first oxygen-enriched gas feed line L3 includes pipes and valves (not shown).

第一富氧液體進料管線L4係用於將第一富氧液體從下蒸餾塔31的底部311供給到第二蒸餾塔21的塔中間部分213的管線。第一富氧液體進料管線L4包括管和閥(未示出)。 The first oxygen-rich liquid feed line L4 is a line for feeding the first oxygen-rich liquid from the bottom 311 of the lower distillation column 31 to the column middle part 213 of the second distillation column 21 . The first oxygen-enriched liquid feed line L4 includes pipes and valves (not shown).

下蒸餾塔31的底部311位於比第二蒸餾塔21的塔中間部分213更高的位置，並且該高度差用於在不使用泵的情況下供給第一富氧液體。 The bottom 311 of the lower distillation column 31 is located at a higher position than the column middle portion 213 of the second distillation column 21, and this height difference is used to supply the first oxygen-enriched liquid without using a pump.

第一富氬氣體進料管線L5係用於將第一富氬氣體從下蒸餾塔31的塔頂部313供給到上蒸餾塔32的底部321的管線。第一富氬氣體進料管線L5包括管和閥(未示出)。 The first argon-rich gas feed line L5 is a line for supplying the first argon-rich gas from the column top 313 of the lower distillation column 31 to the bottom 321 of the upper distillation column 32 . The first argon-enriched gas feed line L5 includes pipes and valves (not shown).

第一富氬液體進料管線L6係用於將第一富氬液體從上蒸餾塔32的底部321供給到下蒸餾塔31的塔頂部313的管線。第一富氬液體進料管線L6包括管和閥(未示出)。 The first argon-rich liquid feed line L6 is a line for feeding the first argon-rich liquid from the bottom 321 of the upper distillation column 32 to the column top 313 of the lower distillation column 31 . The first argon-enriched liquid feed line L6 includes pipes and valves (not shown).

雖然圖2A未示出比如用於冷卻第二蒸餾塔(低壓塔)和原料空氣的主熱交換器、用於壓縮原料空氣的壓縮機和膨脹渦輪的零件，但這並不意味著在實施方式3中該等零件不是必需的。當然，該等部件也是實施方式3中的空氣分離裝置1的一些部件。 Although Figure 2A does not show parts such as the main heat exchanger for cooling the second distillation column (low pressure column) and the feed air, the compressor for compressing the feed air, and the expansion turbine, this is not meant to imply These parts in 3 are not necessary. Of course, these components are also some components of the air separation plant 1 in the third embodiment.

實施方式4 Embodiment 4

將使用圖2B來描述實施方式4的空氣分離裝置1。將要描述與實施方式2不同的構造，並且將不再描述相同的構造或僅簡要描述相同的構造。 The air separation plant 1 of Embodiment 4 will be described using FIG. 2B . A configuration different from Embodiment 2 will be described, and the same configuration will not be described again or only briefly described.

粗氬蒸餾塔30佈置在第一冷箱10a內部，並且在其塔頂部303內部或上方設有第二冷凝器304。粗氬蒸餾塔30也可以佈置在與第一冷箱10a分開的冷箱內部。 The crude argon distillation column 30 is arranged inside the first cold box 10a, and has a second condenser 304 inside or above its column top 303 . The crude argon distillation column 30 may also be arranged inside a cold box separate from the first cold box 10a.

純氬蒸餾塔在實施方式4中不是必需的，可以省略。 The pure argon distillation column is not necessary in Embodiment 4 and can be omitted.

藉由第四實施方式，由於粗氬蒸餾塔不被分割開並且佈置在第一蒸餾塔上方，因此在高度方向上的尺寸更大，但安裝面積可以更小。 With the fourth embodiment, since the crude argon distillation column is not divided and arranged above the first distillation column, the size in the height direction is larger, but the installation area can be smaller.

1:空氣分離裝置 1: Air separation device

5:第一液體進料泵 5: First liquid feed pump

6:第二液體進料泵 6: Second liquid feed pump

10a:第一冷箱 10a: First cold box

10b:第一子冷箱 10b: The first sub-cooler

11:第一蒸餾塔 11: The first distillation column

113:塔頂部 113: Tower top

121:第一冷凝器 121: The first condenser

20:第二冷箱 20: Second cold box

21:第二蒸餾塔 21: The second distillation column

211:底部 211: bottom

212:塔 212: tower

213:塔中間部分 213: The middle part of the tower

30a:第三冷箱 30a: The third cold box

30b:第四冷箱 30b: The fourth cold box

31:下蒸餾塔 31: Lower distillation tower

311:底部 311: bottom

313:塔頂部 313: tower top

32:上蒸餾塔 32: Upper distillation tower

321:底部 321: bottom

323:塔頂部 323: tower top

324:第二冷凝器 324: Second condenser

36:純氬蒸餾塔 36: Pure argon distillation tower

50:第五冷箱 50: fifth cold box

L1、L2:第一富氧氣體進料管線 L1, L2: the first oxygen-enriched gas feed pipeline

L3、L4:第二富氧氣體進料管線 L3, L4: Second oxygen-enriched gas feed line

L5、L6:第一富氬氣體進料管線 L5, L6: the first argon-enriched gas feed pipeline

Claims (7)

一種空氣分離裝置，該空氣分離裝置設有：第一蒸餾塔(11)，具備佈置在其塔頂部(113)之斜上方之第一冷凝器(121)；第二蒸餾塔(21)，壓力低於該第一蒸餾塔(11)，並且佈置在該第一蒸餾塔(11)旁邊；以及佈置在該第一蒸餾塔(11)的該塔頂部(113)上方的粗氬蒸餾塔的一部分或粗氬蒸餾塔的全部；在該粗氬蒸餾塔的一部分佈置在該塔頂部(113)上方的情況下：該粗氬蒸餾塔具有下蒸餾塔(31)和上蒸餾塔(32)，該下蒸餾塔佈置在該塔頂部(113)上方，該上蒸餾塔佈置在該第二蒸餾塔(21)和/或該第一蒸餾塔(11)旁邊、並且在該上蒸餾塔(32)的塔頂部(323)內部或其上方設有第二冷凝器(324)；或在該粗氬蒸餾塔的全部佈置在該塔頂部(113)上方的情況下，該粗氬蒸餾塔在該塔頂部(323)的內部或其上方設有第二冷凝器(324)，並且僅佈置在該塔頂部(113)上方。 An air separation device, the air separation device is provided with: a first distillation tower (11), equipped with a first condenser (121) arranged obliquely above its tower top (113); a second distillation tower (21), pressure lower than the first distillation column (11), and arranged beside the first distillation column (11); and a part of the crude argon distillation column arranged above the column top (113) of the first distillation column (11) Or the whole of the crude argon distillation column; in the case where a part of the crude argon distillation column is arranged above the column top (113): the crude argon distillation column has a lower distillation column (31) and an upper distillation column (32), the The lower distillation tower is arranged above the tower top (113), the upper distillation tower is arranged next to the second distillation tower (21) and/or the first distillation tower (11), and at the top of the upper distillation tower (32) A second condenser (324) is provided inside or above the top of the tower (323); or in the case where the entirety of the crude argon distillation tower is arranged above the top of the tower (113), the crude argon distillation tower is at the top of the tower A second condenser (324) is provided inside or above the (323), and is only arranged above the column top (113). 一種空氣分離裝置，該空氣分離裝置設有：第一蒸餾塔(11)；第二蒸餾塔(21)，壓力低於該第一蒸餾塔(11)，並且佈置在該第一蒸餾塔(11)旁邊；第一冷凝器(122)，佈置在該第二蒸餾塔(21)下部或其底部(211)；以及佈置在該第一蒸餾塔(11)的塔頂部(113)上方的粗氬蒸餾塔的一部分或粗氬蒸餾塔的全部；在該粗氬蒸餾塔的一部分佈置在該塔頂部(113)上方的情況下： 該粗氬蒸餾塔具有下蒸餾塔(31)和上蒸餾塔(32)，該下蒸餾塔佈置在該塔頂部(113)上方，該上蒸餾塔佈置在該第二蒸餾塔(21)和/或該第一蒸餾塔(11)旁邊、並且在該上蒸餾塔(32)的塔頂部(323)內部或其上方設有第二冷凝器(324)；或在該粗氬蒸餾塔的全部佈置在該塔頂部(113)上方的情況下，該粗氬蒸餾塔在該塔頂部(323)的內部或其上方設有第二冷凝器(324)，並且僅佈置在該塔頂部(113)上方。 A kind of air separation plant, this air separation plant is provided with: first distillation tower (11); Second distillation tower (21), pressure is lower than this first distillation tower (11), and is arranged in this first distillation tower (11) ) next to it; the first condenser (122), arranged at the bottom of the second distillation column (21) or its bottom (211); A part of a distillation column or the whole of a crude argon distillation column; in case a part of the crude argon distillation column is arranged above the top (113) of the column: The crude argon distillation tower has a lower distillation tower (31) and an upper distillation tower (32), the lower distillation tower is arranged above the tower top (113), the upper distillation tower is arranged on the second distillation tower (21) and/or Or next to the first distillation column (11), and inside or above the tower top (323) of the upper distillation column (32), a second condenser (324) is arranged; or in the entire arrangement of the crude argon distillation column In the case above the column top (113), the crude argon distillation column is provided with a second condenser (324) inside or above the column top (323) and only arranged above the column top (113) . 如申請專利範圍第1或2項所述之空氣分離裝置，其中，該第一蒸餾塔(11)佈置在第一冷箱(10a)內部，該第一冷凝器(121、122)佈置在第一子冷箱(10b)內部。 The air separation plant as described in item 1 or 2 of the patent scope, wherein, the first distillation column (11) is arranged inside the first cold box (10a), and the first condenser (121, 122) is arranged at the second A sub-cooler (10b) inside. 如申請專利範圍第1或2項所述之空氣分離裝置，其中，該第一蒸餾塔(11)和該粗氬蒸餾塔的一部分或該粗氬蒸餾塔的全部佈置在第一冷箱(10a)內部；或該第一蒸餾塔(11)佈置在該第一冷箱(10a)內部，並且該粗氬蒸餾塔的一部分或該粗氬蒸餾塔的全部佈置在與該第一冷箱(10a)分開的另一冷箱內。 The air separation plant as described in item 1 or 2 of the patent scope, wherein, a part of the first distillation column (11) and the crude argon distillation column or the whole of the crude argon distillation column are arranged in the first cold box (10a ) inside; or the first distillation column (11) is arranged inside the first cold box (10a), and a part of the crude argon distillation column or the whole of the crude argon distillation column is arranged in the first cold box (10a) ) in a separate cold box. 如申請專利範圍第1或2項所述之空氣分離裝置，其中，還設有純氬蒸餾塔，該純氬蒸餾塔佈置在該第一蒸餾塔(11)、該第二蒸餾塔(21)和該粗氬蒸餾塔中的一個或兩個或更多個的旁邊。 As the air separation device described in item 1 or 2 of the patent scope, wherein, a pure argon distillation tower is also provided, and the pure argon distillation tower is arranged in the first distillation tower (11), the second distillation tower (21) and next to one or two or more of the crude argon distillation columns. 如申請專利範圍第3項所述之空氣分離裝置，其中，還設有純氬蒸餾塔，該純氬蒸餾塔佈置在該第一蒸餾塔(11)、該第二蒸餾塔(21)和該粗氬蒸餾塔中的一個或兩個或更多個的旁邊。 As the air separation unit described in item 3 of the patent scope, wherein, a pure argon distillation tower is also provided, and the pure argon distillation tower is arranged in the first distillation tower (11), the second distillation tower (21) and the Next to one or two or more of the crude argon distillation columns. 如申請專利範圍第4項所述之空氣分離裝置，其中，還設有純氬蒸餾塔，該純氬蒸餾塔佈置在該第一蒸餾塔(11)、該第二蒸餾塔(21)和該粗氬蒸餾塔中的一個或兩個或更多個的旁邊。 As the air separation unit described in item 4 of the patent scope, wherein, a pure argon distillation tower is also provided, and the pure argon distillation tower is arranged in the first distillation tower (11), the second distillation tower (21) and the Next to one or two or more of the crude argon distillation columns.
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