CN111578622A - Production preparation system of argon gas - Google Patents
Production preparation system of argon gas Download PDFInfo
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- CN111578622A CN111578622A CN202010547137.4A CN202010547137A CN111578622A CN 111578622 A CN111578622 A CN 111578622A CN 202010547137 A CN202010547137 A CN 202010547137A CN 111578622 A CN111578622 A CN 111578622A
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- separation tower
- liquid
- outlet pipeline
- argon
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 55
- 239000007789 gas Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 89
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 238000003860 storage Methods 0.000 claims abstract description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000005457 ice water Substances 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001802 infusion Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 11
- 239000001301 oxygen Substances 0.000 abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 abstract description 11
- 238000009835 boiling Methods 0.000 abstract description 10
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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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
- F25J3/044—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 single pressure main column system only
-
- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/04054—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of air
-
- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/04096—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of argon or argon enriched stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- 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
- F25J3/0466—Producing crude argon in a crude argon column as a parallel working rectification column or auxiliary column system in a single pressure main column system
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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
- F25J3/04763—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)
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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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/30—Processes or apparatus using separation by rectification using a side column in a single pressure column system
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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
- 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
- F25J2215/58—Argon
Abstract
The invention discloses a production and preparation system of argon, and relates to the technical field of air separation devices. The invention comprises an air storage tank, a first separation tower, a second separation tower and a liquid conveying pipeline; the bottoms of the first separation tower and the second separation tower are fixedly connected with infusion pipelines; the surface of the sealing cover is sequentially provided with a temperature sensor and a pressure sensor; the mounting hole is fixedly connected with an ice water pipe. The air in the air storage tank is introduced into the first separation tower, the inlet and outlet amount of ice water is controlled by the opening degree of the control valve, oxygen with the boiling point of 90.2K is liquefied, and liquid oxygen enters the liquid oxygen storage tank through the first liquid outlet pipeline; pumping the mixed gas into a second separation tower through a gas pump, liquefying argon gas with the boiling point of 87.3, and enabling the liquid argon to enter a liquid argon storage tank through a second liquid outlet pipeline; through the compressor with nitrogen compression, the liquid nitrogen gets into the liquid nitrogen holding vessel through the second pipeline of giving vent to anger, realizes collecting respectively and storing argon gas, nitrogen gas and oxygen.
Description
Technical Field
The invention belongs to the technical field of air separation devices, and particularly relates to an argon production and preparation system.
Background
Argon is a colorless, odorless, monatomic gas with a relative atomic mass of 39.948. Argon gas is generally produced by a fractionation method after being liquefied by air. The density of argon is 1.4 times that of air and 10 times that of helium. Argon is an inert gas, does not react with other substances at normal temperature, is not dissolved in liquid metal at high temperature, and can show the superiority when welding nonferrous metals. Can be used for bulb inflation and electric arc welding of stainless steel, magnesium, aluminum and the like, namely 'argon arc welding'; when welding special metals such as aluminum, magnesium, copper and alloys thereof and stainless steel in the aircraft manufacturing, shipbuilding, nuclear industry and mechanical industry sectors, argon is often used as welding shielding gas to prevent the welding parts from being oxidized or nitrided by air; in the aspect of metal smelting, oxygen and argon blowing are important measures for producing high-quality steel. In addition, the smelting of special metals such as titanium, zirconium, germanium, etc., and the electronics industry also require the use of argon as a shielding gas.
In the existing non-high-purity argon production and preparation, a pressure swing adsorption method is usually adopted, and an adsorption tower is required to keep a certain pressure in the whole argon production process.
However, in the process of producing non-high purity argon in large quantities, the pressure swing adsorption method is adopted, an adsorption tower is required to maintain a certain pressure, a large amount of energy is consumed, and the device is complicated.
Disclosure of Invention
The invention aims to provide an argon production and preparation system, which is characterized in that air in an air storage tank is introduced into a first separation tower, the inlet and outlet amount of ice water is controlled by the opening degree of a control valve, oxygen with the boiling point of 90.2K is liquefied, and liquid oxygen enters a liquid oxygen storage tank through a first liquid outlet pipeline; pumping the mixed gas into a second separation tower through a gas pump, controlling the inlet and outlet amount of ice water through the opening of a control valve, liquefying argon gas with the boiling point of 87.3K, and enabling the liquid argon to enter a liquid argon storage tank through a second liquid outlet pipeline; through the compressor with the nitrogen liquefaction, the liquid nitrogen gets into the liquid nitrogen holding vessel through the second pipeline of giving vent to anger, realizes collecting respectively and storing argon gas, nitrogen gas and oxygen, provides convenience for following gas purification process, and whole device simple structure, and the cost is lower, is applicable to the production preparation of non-high-purity argon gas, has solved current problem.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an argon production and preparation system, which comprises an air storage tank, a first separation tower, a second separation tower and a liquid conveying pipeline, wherein the air storage tank is connected with the first separation tower; the air storage tank is fixedly connected with the first separation tower; the first separation tower is fixedly connected with the second separation tower; the bottoms of the first separation tower and the second separation tower are fixedly connected with infusion pipelines; mounting holes are symmetrically formed in the peripheral side surfaces of the first separation tower and the second separation tower; the tops of the first separation tower and the second separation tower are fixedly connected with sealing covers; the surface of the sealing cover is sequentially provided with a temperature sensor and a pressure sensor; the mounting hole is fixedly connected with an ice water pipe.
Further, a first air inlet pipeline is arranged on the peripheral side surface of the first separation tower close to the bottom end; a first air outlet pipeline is arranged on the peripheral side surface of the first separation tower close to the top end; and a first liquid outlet pipeline is arranged at the bottom end of the first separation tower.
Furthermore, the first air outlet pipeline is Z-shaped; a first stop valve is arranged on the peripheral side surface of the first gas outlet pipeline close to the first separation tower; a first check valve is arranged on the peripheral side surface of the first gas outlet pipeline far away from the first separation tower; an air pump is arranged between the first stop valve and the first one-way valve; and a second stop valve is arranged on the peripheral side surface of the first liquid outlet pipeline.
Further, a second air inlet pipeline is arranged on the peripheral side surface of the second separation tower close to the bottom; a second air outlet pipeline is arranged on the peripheral side surface of the second separation tower close to the top; and a second liquid outlet pipeline is arranged at the bottom end of the second separation tower.
Furthermore, the second air outlet pipeline is Z-shaped; a third stop valve is arranged on the peripheral side surface of the second gas outlet pipeline close to the second separation tower; a second one-way valve is arranged on the peripheral side surface of the second gas outlet pipeline far away from the second separation tower; a compressor is arranged between the third stop valve and the second one-way valve; a fourth stop valve is arranged at one end of the second air outlet pipeline; a fifth stop valve is arranged on the peripheral side surface of the second liquid outlet pipeline; and the bottom end of the second air outlet pipeline is fixedly connected with a liquid nitrogen storage tank.
Further, the ice water pipe is in a zigzag shape; one end of the ice water pipe is provided with a water inlet pipeline; the other end of the ice water pipe is provided with a water outlet pipeline; and a control water valve is arranged on the peripheral side surface of the water inlet pipeline.
Further, the infusion pipeline is Z-shaped; the low-temperature liquid pump is arranged on the liquid conveying pipeline close to the first liquid outlet pipeline; the transfusion pipeline is provided with a third one-way valve far away from the first liquid outlet pipeline; and a sixth stop valve is arranged between the low-temperature liquid pump and the third one-way valve.
Furthermore, the tail ends of the two infusion pipelines are respectively and fixedly connected with a liquid oxygen storage tank and a liquid argon storage tank.
Furthermore, a third air outlet pipeline is arranged on the peripheral side surface of the air storage tank; and a seventh stop valve and a fourth one-way valve are sequentially arranged on the peripheral side surface of the third air outlet pipeline.
The invention has the following beneficial effects:
the air in the air storage tank is introduced into the first separation tower, the inlet and outlet of ice water are controlled by controlling the opening degree of a water valve, oxygen with the boiling point of 90.2K is liquefied, and liquid oxygen enters the liquid oxygen storage tank through the first liquid outlet pipeline; pumping the mixed gas into a second separation tower through a gas pump, controlling the inlet and outlet amount of ice water through the opening of a control valve, liquefying argon gas with the boiling point of 87.3, and allowing the liquid argon to enter a liquid argon storage tank through a second liquid outlet pipeline; compress nitrogen gas through the compressor, the liquid nitrogen gets into the liquid nitrogen holding vessel through the second pipeline of giving vent to anger, realizes collecting respectively and storing argon gas, nitrogen gas and oxygen, provides convenience for the gaseous purification process at the back, and whole device simple structure, and the cost is lower, is applicable to the production preparation of non-high-purity argon gas.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an argon production and preparation system according to the present invention;
FIG. 2 is a schematic view of an air storage tank according to the present invention;
FIG. 3 is a schematic view of the structure of a first separation column according to the present invention;
FIG. 4 is a schematic view of the structure of a second separation column according to the present invention;
FIG. 5 is a schematic structural view of an ice water pipe according to the present invention;
fig. 6 is a schematic structural view of the infusion tube of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-an air storage tank, 2-a first separation tower, 3-a second separation tower, 4-an infusion pipeline, 5-a sealing cover, 6-a temperature sensor, 7-a pressure sensor, 8-an ice water pipe, 9-an air pump, 10-a compressor, 11-a liquid nitrogen storage tank, 12-a cryogenic liquid pump, 13-a liquid oxygen storage tank, 14-a liquid argon storage tank, 101-a third air outlet pipeline, 102-a seventh stop valve, 103-a fourth check valve, 201-a mounting hole, 202-a first air inlet pipeline, 203-a first air outlet pipeline, 204-a first liquid outlet pipeline, 205-a first stop valve, 206-a first check valve, 207-a second stop valve, 301-a second air inlet pipeline, 302-a second air outlet pipeline, 303-a second liquid outlet pipeline, 304-third stop valve, 305-second one-way valve, 306-fourth stop valve, 307-fifth stop valve, 401-third one-way valve, 402-sixth stop valve, 801-water inlet pipe, 802-water outlet pipe, 803-control water valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "bottom," "top," "side," "inner," "peripheral side," and the like are used in an orientation or positional relationship merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting the present invention.
Referring to fig. 1-6, the present invention is a system for producing and preparing argon, comprising an air storage tank 1, a first separation tower 2, a second separation tower 3 and a liquid conveying pipe 4; the air storage tank 1 is fixedly connected with the first separation tower 2; the first separation tower 2 is fixedly connected with the second separation tower 3; the bottoms of the first separation tower 2 and the second separation tower 3 are fixedly connected with infusion pipelines 4; mounting holes 201 are symmetrically formed in the peripheral side surfaces of the first separation tower 2 and the second separation tower 3; the tops of the first separation tower 2 and the second separation tower 3 are fixedly connected with sealing covers 5; the surface of the sealing cover 5 is sequentially provided with a temperature sensor 6 and a pressure sensor 7; the mounting hole 201 is fixedly connected with an ice water pipe 8; the oxygen with the boiling point of 90.2K is liquefied by introducing the air in the air storage tank 1 into the first separation tower 2 and controlling the inlet and outlet amount of ice water by controlling the opening degree of the water valve 803; the amount of ice water flowing in and out is controlled by controlling the opening of the water valve 803, and argon gas having a boiling point of 87.3K is liquefied.
Referring to fig. 1 and 3, a first air inlet pipe 202 is disposed near the bottom end of the circumferential side surface of the first separation tower 2; a first air outlet pipeline 203 is arranged on the peripheral side surface of the first separation tower 2 close to the top end; the bottom end of the first separation tower 2 is provided with a first liquid outlet pipeline 204; air enters the first separation tower 2 through a first air inlet pipeline 202, after continuous refrigeration, liquid oxygen enters the liquid oxygen storage tank 13 from a first liquid outlet pipeline 204, and mixed gas enters the second separation tower 3 through a first air outlet pipeline 203.
Referring to fig. 1 and 3, the first outlet pipe 203 is in a zigzag shape; the circumferential side surface of the first gas outlet pipe 203 is provided with a first stop valve 205 close to the first separation tower 2; the circumferential side surface of the first gas outlet pipeline 203 is provided with a first one-way valve 206 far away from the first separation tower 2; an air pump 9 is arranged between the first stop valve 205 and the first one-way valve 206; a second stop valve 207 is arranged on the peripheral side surface of the first liquid outlet pipeline 204; the gas-liquid backflow is prevented by the action of the first and second shutoff valves 205 and 207.
Referring to fig. 1 and 4, a second gas inlet pipe 301 is disposed on the circumferential side of the second separation tower 3 near the bottom; a second air outlet pipeline 302 is arranged on the circumferential side surface of the second separation tower 3 close to the top; the bottom end of the second separation tower 3 is provided with a second liquid outlet pipeline 303; the mixed gas enters the second separation tower 3 through a second gas inlet pipeline 301, and after continuous refrigeration, the liquid argon enters the liquid argon storage tank 14 through a second liquid outlet pipeline 303; nitrogen gas is discharged from second outlet pipe 302.
Referring to fig. 1 and 4, the second outlet pipe 302 is in a zigzag shape; the peripheral side surface of the second gas outlet pipeline 302 is provided with a third stop valve 304 close to the second separation tower 3; the circumferential side surface of the second gas outlet pipeline 302 is provided with a second one-way valve 305 away from the second separation tower 3; the compressor 10 is arranged between the third stop valve 304 and the second check valve 305; one end of the second air outlet pipeline 302 is provided with a fourth stop valve 306; a fifth stop valve 307 is arranged on the peripheral side surface of the second liquid outlet pipeline 303; the bottom end of the second air outlet pipeline 302 is fixedly connected with a liquid nitrogen storage tank 11; backflow of gas is prevented by the action of the second check valve 305.
Referring to fig. 5, the ice water pipe 8 is zigzag; one end of the ice water pipe 8 is provided with a water inlet pipeline 801; the other end of the ice water pipe 8 is provided with a water outlet pipe 802; the peripheral side surface of the water inlet pipeline 801 is provided with a control water valve 803; the ice water pipe 8 acts like a condenser, the contact area between the air inside the two separation towers and the cold water pipe 8 is increased due to the zigzag design, and the refrigeration effect is more obvious due to the design of the double-layer ice water pipe 8.
Referring to fig. 1 and 6, the infusion tube 4 is in a zigzag shape; the transfusion pipeline 4 is provided with a low-temperature liquid pump 12 close to the first liquid outlet pipeline 204; the transfusion pipeline 4 is provided with a third one-way valve 401 far away from the first liquid outlet pipeline 204; a sixth stop valve 402 is arranged between the cryogenic liquid pump 12 and the third check valve 401; the bottoms of the two separation towers are fixedly connected with a liquid oxygen storage tank 13 and a liquid nitrogen storage tank 14 respectively through a transfusion pipeline 4.
Referring to fig. 1, the ends of two infusion pipelines 4 are respectively and fixedly connected with a liquid oxygen storage tank 13 and a liquid argon storage tank 14; liquefied oxygen and argon are collected and stored in a liquid oxygen storage tank 13 and a liquid argon storage tank 14.
Referring to fig. 1 and 2, a third air outlet pipe 101 is disposed on the peripheral side of the air storage tank 1; a seventh stop valve 102 and a fourth check valve 103 are sequentially arranged on the peripheral side surface of the third air outlet pipeline 101; the collected air raw material is stored in the air storage tank 1.
The specific working principle of the invention is as follows:
inputting air in the air storage tank 1 into the first separation tower 2 through the third air outlet pipeline 101, controlling the entering amount of ice water by controlling the opening degree of the control water valve 803, liquefying oxygen with the boiling point of 90.2K, and entering liquid oxygen into the liquid oxygen storage tank 13 through the first liquid outlet pipeline 204; the mixed gas is pumped into the second separation tower 3 through the air pump 9, the entering amount of ice water is controlled by controlling the opening degree of a control water valve 803 in the second separation tower 3, argon gas with the boiling point of 87.3 is liquefied, and the liquid argon enters the liquid argon storage tank 14 through a second liquid outlet pipeline 303; the nitrogen is compressed by the compressor 10, and the liquid nitrogen enters the liquid nitrogen storage tank 11 through the second gas outlet pipeline 302, so that the argon, the nitrogen and the oxygen are respectively collected and stored.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A production and preparation system of argon comprises an air storage tank (1), a first separation tower (2), a second separation tower (3) and a liquid conveying pipeline (4); the air storage tank (1) is fixedly connected with the first separation tower (2); the first separation tower (2) is fixedly connected with the second separation tower (3); the bottoms of the first separation tower (2) and the second separation tower (3) are fixedly connected with infusion pipelines (4);
the method is characterized in that:
mounting holes (201) are symmetrically formed in the peripheral side surfaces of the first separation tower (2) and the second separation tower (3); the tops of the first separation tower (2) and the second separation tower (3) are fixedly connected with sealing covers (5); a temperature sensor (6) and a pressure sensor (7) are sequentially arranged on the surface of the sealing cover (5);
the mounting hole (201) is fixedly connected with an ice water pipe (8).
2. An argon production and preparation system according to claim 1, wherein said first separation column (2) is provided with a first gas inlet pipe (202) near the bottom end on the peripheral side; a first air outlet pipeline (203) is arranged on the peripheral side surface of the first separation tower (2) close to the top end; the bottom end of the first separation tower (2) is provided with a first liquid outlet pipeline (204).
3. An argon production and preparation system according to claim 2, wherein said first outlet pipe (203) is zigzag-shaped; a first stop valve (205) is arranged on the peripheral side surface of the first gas outlet pipeline (203) close to the first separation tower (2); the peripheral side surface of the first air outlet pipeline (203) is provided with a first one-way valve (206) far away from the first separation tower (2); an air pump (9) is arranged between the first stop valve (205) and the first one-way valve (206); and a second stop valve (207) is arranged on the peripheral side surface of the first liquid outlet pipeline (204).
4. An argon production and preparation system according to claim 1, wherein said second separation column (3) is provided with a second gas inlet pipe (301) on its peripheral side near the bottom; a second air outlet pipeline (302) is arranged on the peripheral side surface of the second separation tower (3) close to the top; and a second liquid outlet pipeline (303) is arranged at the bottom end of the second separation tower (3).
5. An argon production and preparation system according to claim 4, wherein said second outlet pipe (302) is Z-shaped; a third stop valve (304) is arranged on the peripheral side surface of the second gas outlet pipeline (302) close to the second separation tower (3); the peripheral side surface of the second air outlet pipeline (302) is provided with a second one-way valve (305) far away from the second separation tower (3); a compressor (10) is arranged between the third stop valve (304) and the second one-way valve (305); a fourth stop valve (306) is arranged at one end of the second air outlet pipeline (302); a fifth stop valve (307) is arranged on the peripheral side surface of the second liquid outlet pipeline (303); and the bottom end of the second air outlet pipeline (302) is fixedly connected with a liquid nitrogen storage tank (11).
6. An argon production and preparation system according to claim 1, wherein said ice water pipe (8) is zigzag; one end of the ice water pipe (8) is provided with a water inlet pipeline (801); the other end of the ice water pipe (8) is provided with a water outlet pipeline (802); the side surface of the water inlet pipeline (801) is provided with a control water valve (803).
7. An argon production and preparation system according to claim 1, wherein said infusion tube (4) is zigzag-shaped; the low-temperature liquid pump (12) is arranged on the transfusion pipeline (4) close to the first liquid outlet pipeline (204); a third one-way valve (401) is arranged on the transfusion pipeline (4) far away from the first liquid outlet pipeline (204); and a sixth stop valve (402) is arranged between the low-temperature liquid pump (12) and the third one-way valve (401).
8. The argon gas production and preparation system according to claim 1, wherein the two infusion pipelines (4) are fixedly connected with a liquid oxygen storage tank (13) and a liquid argon storage tank (14) at the ends respectively.
9. An argon production and preparation system according to claim 1, wherein the peripheral side of said air storage tank (1) is provided with a third outlet pipe (101); and a seventh stop valve (102) and a fourth one-way valve (103) are sequentially arranged on the peripheral side surface of the third air outlet pipeline (101).
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| CN202010547137.4A CN111578622A (en) | 2020-06-16 | 2020-06-16 | Production preparation system of argon gas |
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| CN202010547137.4A CN111578622A (en) | 2020-06-16 | 2020-06-16 | Production preparation system of argon gas |
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Application publication date: 20200825 |