CN212673641U - Argon making device - Google Patents

Argon making device Download PDF

Info

Publication number
CN212673641U
CN212673641U CN202021374439.8U CN202021374439U CN212673641U CN 212673641 U CN212673641 U CN 212673641U CN 202021374439 U CN202021374439 U CN 202021374439U CN 212673641 U CN212673641 U CN 212673641U
Authority
CN
China
Prior art keywords
argon
chamber
condenser
outlet
evaporator
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN202021374439.8U
Other languages
Chinese (zh)
Inventor
李登桐
郭中山
黄斌
姜永
杨晓东
孟卫宁
田兴兵
岳峰
杜长银
姜涛
姜国华
王文龙
魏志勇
张建琪
汪武恒
卜江波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Energy Group Ningxia Coal Industry Co Ltd
Original Assignee
National Energy Group Ningxia Coal Industry Co Ltd
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 National Energy Group Ningxia Coal Industry Co Ltd filed Critical National Energy Group Ningxia Coal Industry Co Ltd
Priority to CN202021374439.8U priority Critical patent/CN212673641U/en
Application granted granted Critical
Publication of CN212673641U publication Critical patent/CN212673641U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25J3/04—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
    • F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
    • F25J3/0426—The cryogenic component does not participate in the fractionation
    • 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
    • F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/04339—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air
    • F25J3/04345—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air and comprising a gas work expansion loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • 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
    • 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
    • F25J3/04709—Producing crude argon in a crude argon column as an auxiliary column system in at least a dual pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • 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
    • F25J3/04951—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network
    • F25J3/04963—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network and inter-connecting equipment within or downstream of the fractionation unit(s)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the 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
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/58—Processes or apparatus involving steps for increasing the pressure of gaseous 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

The utility model relates to the technical field of air separation and discloses an argon preparation device which comprises a crude argon tower (1), a first evaporator (11) arranged inside the tower body of the crude argon tower (1) and a first condenser (12) arranged inside the tower body of the crude argon tower (1); the first condenser (12) is located above the first evaporator (11); the tower body of the crude argon tower (1) is provided with a feeding hole and a discharging hole for feeding and discharging materials, and the first evaporator (11) adopts nitrogen as a heat source. Effectively improves the yield and extraction rate of argon. Through the technical scheme, the extraction rate of argon output and argon has effectively been improved, moreover the utility model discloses applicable many sets of air separation plant has practiced thrift manufacturing cost, has improved economic benefits.

Description

Argon making device
Technical Field
The utility model relates to an air separation technology, in particular to an argon preparation device.
Background
Currently, the argon preparation mainly comprises hydrogenation argon preparation and full-rectification argon preparation. Because the full-rectification argon preparation has the advantages of simple flow, convenient operation, safety, stability and high argon extraction rateAnd the like, and is widely applied. The full-rectification argon preparation is that oxygen-argon separation is carried out in a crude argon tower, and the oxygen content is directly obtained and is less than l x 10-6And performing argon-nitrogen separation on the crude argon in a fine argon tower to obtain a fine argon product with the purity of 99.999 percent. However, the existing air separation device is matched with an argon system to use argon fraction as the ascending gas of the crude argon tower, and the gas quantity is limited by the distillation working condition. The yield and extraction rate of argon are limited due to the small amount of gas rising and insufficient circulation rate. In order to increase the argon production and extraction rate, a new argon production apparatus is urgently needed, and the argon production and extraction rate can be increased by the apparatus
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming in the system argon tower that prior art exists because of rising the tolerance few, the circulation multiplying power is not enough, and argon output and extraction rate receive the restriction problem, provide and make the argon device, and this system argon device can provide sufficient rising gas and improve argon output, can improve the extraction rate of argon moreover.
In order to achieve the above object, the present invention provides an argon production apparatus, which includes a crude argon column, a first evaporator disposed inside the column body of the crude argon column, and a first condenser disposed inside the column body of the crude argon column; the first condenser is positioned above the first evaporator; the tower body of the crude argon tower is provided with a feeding hole and a discharging hole, and the first evaporator adopts nitrogen as a heat source.
Further, the crude argon column comprises a first baffle assembly; the first baffle plate assembly divides the interior of the tower body of the crude argon tower into a first chamber and a second chamber which are arranged from bottom to top; the first condenser is disposed in the second chamber; the first evaporator is disposed at a lower portion of the first chamber.
Further, the first evaporator comprises a first inlet for connecting a nitrogen source and a first outlet for discharging nitrogen; the argon making device comprises a first pipeline which is communicated with the first outlet and the second chamber so as to send the nitrogen discharged from the first outlet into the second chamber to be used as a cold source of the first condenser; the crude argon column includes a first opening formed in a top wall of the second chamber for venting nitrogen gas heated by the first condenser outside the crude argon column.
Further, the first condenser comprises a second inlet and a second outlet for the argon to enter and exit; the argon production device comprises a third pipeline and a second pipeline which are communicated with the first chamber and the first condenser; the second conduit communicates the first chamber with the second inlet and the third conduit communicates the first chamber with the second outlet to enable argon gas to circulate between the first chamber and the first condenser.
Further, the argon preparation device also comprises a fourth pipeline which penetrates through the tower body wall of the crude argon tower and is communicated with the second outlet so as to discharge partial argon to a specified place.
Further, the argon production device comprises a fine argon column, and the fine argon column comprises a second partition plate assembly; and the second partition plate assembly partitions the interior of the tower body of the fine argon tower into a third chamber and a fourth chamber which are distributed from bottom to top.
Further, the argon making device comprises a second condenser arranged in the fourth chamber and a second evaporator arranged at the lower part in the third chamber; the fourth conduit communicates the second outlet with the third chamber.
Further, the second evaporator includes a third inlet and a third outlet for nitrogen delivered from a nitrogen source; the second condenser comprises a fourth inlet and a fourth outlet; the third inlet is communicated with a nitrogen source serving as a heat source of the second evaporator; the argon production device further comprises a fifth pipeline which is connected with the third outlet and the fourth inlet so as to provide a cold source for the second condenser by using nitrogen discharged from the second evaporator; the fourth outlet is directly communicated with the atmosphere to exhaust the nitrogen heated by the second condenser.
Further, the argon production device comprises a sixth pipeline leading from the third chamber to the upper part of the fourth chamber; a seventh conduit leading from a lower portion of the fourth chamber to a third chamber; to enable argon gas to circulate between the third chamber and the fourth chamber.
Further, a discharge port for sending the liquid argon to a specified place is arranged on the bottom wall of the third chamber.
Through the technical scheme, the extraction rate of argon output and argon has effectively been improved, moreover the utility model discloses applicable many sets of air separation plant has practiced thrift manufacturing cost, has improved economic benefits.
Drawings
Fig. 1 is a schematic view of an argon production device according to an embodiment of the present invention.
Description of the reference numerals
1-a crude argon column; 11-a first evaporator; 111-a first inlet; 112-a first outlet; 12-a first condenser; 121-a second inlet; 122-a second outlet; 13-a first chamber; 14-a second chamber; 16-a first diaphragm assembly; 15-a first opening; 2-a fine argon column; 21-a second evaporator; 211-a third inlet; 212-a third outlet; 22-a second condenser; 221-a fourth inlet; 222-a fourth outlet; 23-a third chamber; 24-a fourth chamber; 26-a second baffle assembly; g1 — first conduit; g 2-a second conduit; g 3-third conduit; g 4-fourth conduit; g 5-fifth conduit; g 6-sixth conduit; g 7-seventh conduit; 3-a pressure and temperature regulating device; 31-a first compression device; 32-a heat exchanger; 33-second compression device.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. In the present invention, the use of directional terms such as "upper, lower, left and right" generally means the position where the user is actually located, unless otherwise specified. "inner and outer" refer to the inner and outer contours relative to the object.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
In order to achieve the above object, the present invention provides an argon production apparatus, as shown in fig. 1, comprising a crude argon column 1, a first evaporator 11 disposed inside a shell of the crude argon column 1, and a first condenser 12 disposed inside a column body of the crude argon column 1; the first condenser 12 is located above the first evaporator 11; the tower body of the crude argon tower 1 is provided with a feeding hole and a discharging hole, the feeding hole is arranged below the discharging hole, crude argon enters the crude argon tower 1 from the feeding hole and is then purified and then discharged to a specified point from the discharging hole, and the first evaporator 11 adopts nitrogen as a heat source. The separation of oxygen and argon is mainly carried out in the crude argon tower 1, a first evaporator 11 which takes nitrogen as a heat source is arranged at the bottom of the crude argon tower 1, the nitrogen with set temperature and pressure is introduced into the first evaporator 11 from a first inlet 111 of the first evaporator 11 to carry out low-temperature evaporation on the crude argon in the crude argon tower 1 by utilizing the difference of evaporation points of the nitrogen, the argon and the oxygen, and meanwhile, the cooled nitrogen flows out of the first evaporator 11 from a first outlet 112; by the method, the ascending gas quantity in the crude argon tower 1 is improved, and the circulation multiplying power is improved. Through the technical scheme, the extraction rate of argon output and argon has effectively been improved, moreover the utility model discloses applicable many sets of air separation plant has practiced thrift manufacturing cost, has improved economic benefits.
Preferably, the crude argon column 1 comprises a first baffle assembly 16; the first baffle plate assembly 16 divides the interior of the tower body of the crude argon tower 1 into a first chamber 13 and a second chamber 14 which are arranged from bottom to top; separating the first chamber 13 from the second chamber 14 by means of a first baffle assembly 16, in preparation for the cyclic condensation of argon between the first chamber 13 and the second chamber 14, the first condenser 12 being arranged in the second chamber 14; the first evaporator 11 is disposed at a lower portion of the first chamber 13. Crude argon gas gets into in the crude argon tower 1 from the feed inlet of crude argon tower 1, and under in crude argon tower 1, argon gas becomes gaseous and liquid oxygen separation, and liquid oxygen deposit is in the bottom of first cavity 13, and argon gas rises from first cavity 13, through the heating of first evaporimeter 11, the ascending volume grow of argon gas to be favorable to preparing of argon gas.
Preferably, the first evaporator 11 comprises a first inlet 111 for connection to a nitrogen source and a first outlet 112 for discharging nitrogen; the argon making device comprises a first pipeline g1 for communicating the first outlet 112 and the second chamber 14 so as to send the nitrogen discharged from the first outlet 112 into the second chamber 14 as a cold source of the first condenser 12; nitrogen enters the first evaporator 11 from the first inlet 111 to heat crude argon containing oxygen and argon, meanwhile, the nitrogen is cooled by the crude argon, and the nitrogen with the cooled temperature is discharged from the first outlet 112 and enters the second chamber 14 through the first pipeline g1, so as to provide a cold source for the first condenser 12; said crude argon column 1 comprises a first opening 15 formed in the top wall of said second chamber 14 for venting nitrogen gas heated by said first condenser 12 outside the column 1; the heated nitrogen gas is discharged from the crude argon column 1 through the first opening 15, so that the nitrogen gas continuously enters the first evaporator 11 from the nitrogen gas source to warm and evaporate the crude argon in the first chamber 13.
Preferably, the first condenser 12 comprises a second inlet 121 and a second outlet 122 for the argon; the argon production means comprise a third duct g3 and a second duct g2 communicating the first chamber 13 and the first condenser 12; the second pipe g2 communicates the first chamber 13 with the second inlet 121, and the third pipe g3 communicates the first chamber 13 with the second outlet 122 to enable argon gas to circulate between the first chamber 13 and the first condenser 12. This prevents the first condenser 12 from being clogged. Argon gas from the first chamber 13 enters the first condenser 12 through the second pipeline g2 through the second inlet 121, and then a part of the argon gas returns to the first chamber 13 through the second outlet 122 to form an argon cycle, at this time, the argon gas flows through the first condenser 12, and nitrogen flows out of the first condenser 12, because the volume of the second chamber 14 is large, and further the volume of the second chamber 14 is easy to expand, more nitrogen gas serving as a cold source can be contained in the second chamber 14, the condensation effect is strong, the temperature difference is large, and the extraction rate and the extraction amount of argon can be improved.
Preferably, the argon production apparatus further comprises a fourth pipe g4 passing through the column wall of the crude argon column 1 and communicating with the second outlet 122 to discharge a part of argon gas to a designated place. During the argon extraction, the crude argon enters the first chamber 13, most of the oxygen in the crude argon is already separated in the ascending gas which rises after being heated by the first evaporator 11, the ascending gas enters the first condenser 12 from the upper part of the first chamber 13 through the second pipeline g2 to separate oxygen again, a part of the condensed gas returns to the first chamber 13 from the third pipeline g3 to maintain the circulation of the ascending gas between the first condenser 12 and the first chamber 13 and effectively prevent the first condenser 12 from being blocked, and part of the oxygen separated again can be deposited to the bottom of the first chamber 13 again to complete the oxygen separation again, and the other part of the condensed gas is sent to a designated place through the fourth pipeline g4, the crude argon gas, which is to be subjected to oxygen separation again, is sent to a specified site, and the crude argon gas at this time mainly comprises nitrogen and argon.
In order to obtain argon of higher purity, preferably, the argon production apparatus comprises a fine argon column 2, the fine argon column 2 comprising a second baffle assembly 26; the second partition plate assembly 26 partitions the interior of the column body of the fine argon column 2 into a third chamber 23 and a fourth chamber 24 which are distributed from bottom to top. In the fine argon column 2, the separation of argon and nitrogen is mainly carried out. The crude argon gas discharged from the second outlet 122 and separated from oxygen by the crude argon column 1 is introduced into the fine argon column 2 through the fourth pipe g4 to be purified again. In the fine argon column 2, the third chamber 23 and the fourth chamber 24 are separated by the second partition plate assembly 26, thereby preparing for the cyclic condensation of argon gas between the third chamber 23 and the fourth chamber 24.
Preferably, the argon production device comprises a second condenser 22 arranged in the fourth chamber 24 and a second evaporator 21 arranged in the lower part of the third chamber 23; the fourth duct g4 communicates the second outlet 122 with the third chamber 23. The second evaporator 21 is provided to increase the amount of the ascending gas in the argon purification column 2. The second condenser 22 condenses the ascending gas ascending from the third chamber 23 using the cooled nitrogen gas discharged from the second evaporator 21 as a cold source, thereby further purifying the argon gas.
Preferably, the second evaporator 21 comprises a third inlet 211 and a third outlet 212 for the inlet and outlet of nitrogen delivered from the nitrogen source; the second condenser 22 comprises a fourth inlet 221 and a fourth outlet 222; the third inlet 211 is communicated with a nitrogen source which is used as a heat source of the second evaporator 21; the argon making apparatus further includes a fifth pipe g5 connecting the third outlet 212 and the fourth inlet 221 to provide a cold source for the second condenser 22 using the nitrogen discharged from the second evaporator 21; the fourth outlet 222 is directly connected to the atmosphere to evacuate the nitrogen gas heated by the second condenser 22. Because the separation of argon and nitrogen is carried out in the fine argon column 2, the argon with higher purity is obtained after cooling, and the argon is gradually collected at the bottom of the third chamber 23 along with the production and then is discharged to a storage tank through a set pipeline for storage.
Preferably, said argon production means comprise a sixth conduit g6 leading from said third chamber 23 to the upper part of said fourth chamber 24; a seventh duct g7 leading from the lower part of the fourth chamber 24 to the third chamber 23; so as to enable the circulation of argon between the third chamber 23 and said fourth chamber 24. Thus, the nitrogen gas and the argon gas can be further separated while the second condenser 22 is prevented from being clogged. The separated nitrogen is directly evacuated.
Preferably, a discharge port for sending the liquid argon to a designated place is provided on the bottom wall of the third chamber 23. As shown in fig. 1, since the separation of argon gas and nitrogen gas is mainly performed in the fine argon column 2, and the argon gas becomes liquid after condensation and is deposited on the lower portion of the fine argon column 2, the liquid argon is introduced into the storage tank through the discharge port provided on the bottom wall of the third chamber 23 to be stored.
The argon preparation device comprises a pressure temperature adjusting device 3 and a cold box, and the crude argon tower 1 and the fine argon tower 2 are arranged in the cold box. The crude argon column 1 and the fine argon column 2 can be maintained in a low temperature environment by means of a cold box.
Preferably, the pressure and temperature regulating device 3 comprises a heat exchanger 32 arranged inside the cold box and a first compression device 31 arranged outside the cold box; by arranging the heat exchanger 32 in the cold box, the heat exchanger 32 is kept in a low-temperature state, so that nitrogen can be heated from normal temperature to low temperature; the nitrogen is pressurized through the first compression equipment 31, so that the pressure requirement of the system on the nitrogen is met; the outlet line of the first compression device 31 is respectively communicated with the first evaporator 11 and the second evaporator 21 after passing through the heat exchanger 32, so that the first evaporator 11 and the second evaporator 21 are simultaneously supplied with pressure nitrogen through one compressor, thereby facilitating operation and saving cost. Nitrogen gas after compressing through first compression equipment 31 passes through heat exchanger 32 heat transfer, reaches lower temperature, according to the difference of the gasification temperature of nitrogen gas, oxygen, argon gas, improves the ascending volume of the argon gas of crude argon tower 1 in crude argon tower 1, improves the ascending tolerance that improves nitrogen gas in the smart argon tower 2, and then improves the extraction capacity of argon.
Preferably, the pressure and temperature adjusting device 3 comprises a second compression device 33 which is arranged outside the cold box and is used for connecting an air separation device, so that crude argon discharged from the air separation device is compressed by the second compression device 33 and then matched with the crude argon column 1; when different air separation plant insert this system argon device, only need insert second compression equipment 33 in air separation plant's exit can realize, just so can satisfy one set of system argon device and can satisfy many sets of air separation plant simultaneously to need not the entire system all to park when overhauing air separation plant. The production efficiency is effectively improved. The heat exchanger 32 is provided between the second compression device 33 and the crude argon column 1, so that the crude argon discharged from the second compression device 33 is changed into low-temperature crude argon after heat exchange by the heat exchanger 32, and the low-temperature crude argon is sent into the crude argon column 1 for low-temperature evaporation.
Preferably, the nitrogen discharged from the first opening 15 is pressurized again by the first compression device 31, and enters the first evaporator 11 and the second evaporator 21 again after heat exchange by the heat exchanger 32 for recycling.
Preferably, the argon making device further comprises a liquid argon source or an expander, and the heat exchanger 32 is supplemented with cold energy through the liquid argon source or the expander, because as the production is carried out, if cold energy is not supplemented, the temperature of the heat exchanger 32 is higher and higher, and the heat exchange function is continuously reduced.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. Argon production plant characterized in that it comprises a crude argon column (1), a first evaporator (11) arranged inside the shell of the crude argon column (1) and a first condenser (12) arranged inside the column of the crude argon column (1); the first condenser (12) is located above the first evaporator (11); the tower body of the crude argon tower (1) is provided with a feeding hole and a discharging hole, and the first evaporator (11) adopts nitrogen as a heat source.
2. Argon production plant according to claim 1, characterized in that said crude argon column (1) comprises a first baffle assembly (16); the first baffle plate assembly (16) divides the interior of the tower body of the crude argon tower (1) into a first chamber (13) and a second chamber (14) which are arranged from bottom to top; the first condenser (12) is arranged in the second chamber (14); the first evaporator (11) is disposed at a lower portion of the first chamber (13).
3. Argon production plant according to claim 2, characterized in that said first evaporator (11) comprises a first inlet (111) for connection to a nitrogen source and a first outlet (112) for discharging nitrogen; the argon production device comprises a first pipe (g1) communicating the first outlet (112) and the second chamber (14) to send the nitrogen discharged from the first outlet (112) into the second chamber (14) as a cold source of the first condenser (12); the crude argon column (1) comprises a first opening (15) formed in the top wall of the second chamber (14) for discharging the nitrogen gas heated by the first condenser (12) outside the column (1).
4. An argon production plant according to claim 3, characterized in that the first condenser (12) comprises a second inlet (121) and a second outlet (122) for the inlet and outlet of argon; the argon production device comprises a third conduit (g3) and a second conduit (g2) communicating the first chamber (13) and the first condenser (12); the second conduit (g2) communicates the first chamber (13) with the second inlet (121), and the third conduit (g3) communicates the first chamber (13) with the second outlet (122) to enable argon to circulate between the first chamber (13) and the first condenser (12).
5. Argon production plant according to claim 4, characterized in that it further comprises a fourth conduit (g4) passing through the column wall of the crude argon column (1) and communicating with the second outlet (122) to discharge part of the argon to a given point.
6. Argon production device according to claim 5, characterized in that it comprises a fine argon column (2), said fine argon column (2) comprising a second septum assembly (26); the second partition plate assembly (26) divides the interior of the tower body of the fine argon tower (2) into a third chamber (23) and a fourth chamber (24) which are distributed from bottom to top.
7. An argon production device according to claim 6, characterized in that it comprises a second condenser (22) arranged in the fourth chamber (24) and a second evaporator (21) arranged in the lower part inside the third chamber (23); the fourth conduit (g4) communicates the second outlet (122) and the third chamber (23).
8. Argon production plant according to claim 7, characterized in that said second evaporator (21) comprises a third inlet (211) and a third outlet (212) for the inlet and outlet of nitrogen delivered from a nitrogen source; the second condenser (22) comprises a fourth inlet (221) and a fourth outlet (222); the third inlet (211) is communicated with a nitrogen source which is used as a heat source of the second evaporator (21); the argon production apparatus further comprises a fifth pipe (g5) connecting the third outlet (212) and the fourth inlet (221) to provide a cold source for the second condenser (22) using the nitrogen discharged from the second evaporator (21); the fourth outlet (222) is directly communicated with the atmosphere to exhaust the nitrogen heated by the second condenser (22).
9. Argon production device according to claim 8, characterized in that it comprises a sixth duct (g6) leading from the third chamber (23) to the upper part of the fourth chamber (24); a seventh duct (g7) leading from the lower part of the fourth chamber (24) to the third chamber (23); so as to enable argon to circulate between the third chamber (23) and said fourth chamber (24).
10. An argon making device according to claim 9, characterized in that the bottom wall of the third chamber (23) is provided with a discharge port for sending liquid argon to a designated place.
CN202021374439.8U 2020-07-14 2020-07-14 Argon making device Active CN212673641U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021374439.8U CN212673641U (en) 2020-07-14 2020-07-14 Argon making device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021374439.8U CN212673641U (en) 2020-07-14 2020-07-14 Argon making device

Publications (1)

Publication Number Publication Date
CN212673641U true CN212673641U (en) 2021-03-09

Family

ID=74839129

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021374439.8U Active CN212673641U (en) 2020-07-14 2020-07-14 Argon making device

Country Status (1)

Country Link
CN (1) CN212673641U (en)

Similar Documents

Publication Publication Date Title
CN201281522Y (en) Oxygen self-supercharging air separating device
CN101886871B (en) Method and device for producing pressure oxygen by air separation
CN107940801B (en) A kind of space division system recycling compressed air waste-heat
CN108731379A (en) A kind of amount of liquid is adjustable and produces the air separation plant and production method of more specification oxygen products simultaneously
CN107345737A (en) The double condensation stream backed expansion nitrogen making machines of double tower and its method for preparing nitrogen
CN210399702U (en) Air separation system
CN110207457A (en) It is a kind of can liquid nitrogen processed air separation plant and its application method
CN103277981A (en) Device and method for increasing nitrogen-to-oxygen ratio of air separation unit
CN212673641U (en) Argon making device
CN104185767B (en) For the method and apparatus producing two strands of partial air flow purified
CN114477093A (en) Polycrystalline silicon reduction tail gas recovery system
CN103712417B (en) The method and apparatus that a kind of air pressurization backflow expansion inner compression air separates
CN106958987A (en) A kind of air pre-dehumidified separated for air and chilldown system
CN108151442A (en) Low-temperature preparation system for L NG in raw material gas
CN114485051B (en) Liquid ammonia double-working-condition refrigerating system and liquid carbon dioxide production equipment
CN103453731B (en) Method and device for generating electrical energy
CN104019629A (en) Air separation method capable of being matched with cold energy supply in receiving station
CN111928573A (en) Argon preparation method
CN207214635U (en) The cold auto-pressurizing device for making of health care gas deep space
CN110470103A (en) Improve the system and method for Argon recovery rate in air
CN207123117U (en) A kind of new double tower nitrogen device for making
CN2839914Y (en) Vacuum freezing equipment
CN113623943A (en) Nitrogen manufacturing system and method for manufacturing nitrogen with different purities
CN114440553A (en) Low-energy-consumption double-tower pure nitrogen preparation device adopting nitrogen expansion refrigeration and application method
CN114413570A (en) Double-tower floor type nitrogen making device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant