CN117443192A - Argon recovery and purification device and process - Google Patents
Argon recovery and purification device and process Download PDFInfo
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- CN117443192A CN117443192A CN202311794762.9A CN202311794762A CN117443192A CN 117443192 A CN117443192 A CN 117443192A CN 202311794762 A CN202311794762 A CN 202311794762A CN 117443192 A CN117443192 A CN 117443192A
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- hydrogen
- argon
- air flow
- mixing part
- gas
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 176
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 88
- 238000000746 purification Methods 0.000 title claims abstract description 65
- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000001257 hydrogen Substances 0.000 claims abstract description 102
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 102
- 239000007789 gas Substances 0.000 claims abstract description 76
- 238000002156 mixing Methods 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000001301 oxygen Substances 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 28
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 239000002808 molecular sieve Substances 0.000 claims abstract description 17
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000011148 porous material Substances 0.000 description 9
- 239000001307 helium Substances 0.000 description 8
- 229910052734 helium Inorganic materials 0.000 description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000011403 purification operation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B23/00—Noble gases; Compounds thereof
- C01B23/001—Purification or separation processes of noble gases
- C01B23/0094—Combined chemical and physical processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/202—Hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0003—Chemical processing
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
- C01B2210/0015—Physical processing by adsorption in solids characterised by the adsorbent
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0029—Obtaining noble gases
- C01B2210/0034—Argon
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0045—Oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Inorganic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses an argon recovery and purification device and process, comprising a plurality of purification units connected end to end, wherein the purification units comprise: the connecting pipe comprises a first mixing part and a second mixing part, wherein a narrow part is arranged in the first mixing part, the pipe diameter of the first mixing part gradually increases from the narrow part to two ends, a gas pipe for hydrogen to flow in is arranged on the narrow part, a stop lever with a trapezoid cross section is movably arranged on the second mixing part, and a plurality of air holes for injecting hydrogen obliquely downwards are formed in two inclined planes of the stop lever; and the mounting block is connected with the connecting pipe and is used for absorbing water molecules in the airflow. According to the argon recovery and purification device and process provided by the invention, hydrogen is injected into argon for a plurality of times, the hydrogen and oxygen in the argon are combined into water by using the catalyst, and the moisture in the gas is removed by using the molecular sieve.
Description
Technical Field
The invention relates to the technical field of argon purification, in particular to an argon recovery and purification device and an argon recovery and purification process.
Background
Argon is an inert gas which does not react with other chemical substances at normal temperature and is insoluble in liquid metal at high temperature, and is often used as a shielding gas for welding nonferrous metals, and the argon is required to be purified for many times in the preparation process of the argon to remove impurities in the argon.
According to publication (bulletin) number CN115025607a, publication (bulletin) date 2022.09.09, an argon purification device is disclosed, comprising a device body, wherein a first reaction tank, a second reaction tank, a deoxidization reaction tank and a getter tank are fixedly arranged in a matrix manner inside the device body; an air inlet pipe is fixedly arranged on the outer side of the top of the first reaction tank. The device is characterized in that a first reaction tank, a second reaction tank, a deoxidization reaction tank and a getter tank are arranged, carbon monoxide in gas in the first reaction tank reacts with oxygen, hydrogen reacts with oxygen to generate carbon dioxide and water, redundant oxygen in gas in the second reaction tank reacts with hydrogen to generate water, oxidized metal in the deoxidization reaction tank reacts with residual carbon monoxide and hydrogen in the gas to reduce the metal, meanwhile, water and carbon dioxide are generated, finally, the gas in the getter tank passes through getter fillers in a getter catalytic cylinder to adsorb the gas except argon, the purification mode is strict, the argon can be sufficiently purified, and the purity quality of the argon is improved.
In the prior art including the above patent, some impurities are mixed in the newly prepared argon and the recovered argon, wherein the most difficult to remove is oxygen, the gasification temperature of liquid oxygen is minus 183 ℃, the gasification temperature of liquid argon is minus 185.85, the two gasification temperatures are similar, the two gasification temperatures are difficult to remove by a physical method, most of the prior art is to inject hydrogen into the recovered argon, catalyze the hydrogen and the oxygen by a catalytic rod to make the hydrogen and the oxygen combine into water, the gasification temperature of liquid hydrogen is minus 240.18, and the redundant hydrogen can be removed by the physical method to obtain pure argon. The existing purification device is to directly inject the recycled argon and the hydrogen into a container, the recycled argon and the hydrogen are mixed together at will, and the catalytic rod is stirred in the container to enable the hydrogen in the container to be combined with the oxygen.
Disclosure of Invention
The invention aims to provide an argon recovery and purification device and process, which aim to solve the problem that hydrogen and argon are difficult to fully mix in a container, so that oxygen in the argon is difficult to fully remove.
In order to achieve the above object, the present invention provides an argon recovery purification device, comprising a plurality of purification units connected end to end, the purification units comprising:
the connecting pipe comprises a first mixing part and a second mixing part, wherein a narrow part is arranged in the first mixing part, the pipe diameter of the first mixing part gradually increases from the narrow part to two ends, a gas pipe for hydrogen to flow in is arranged on the narrow part, a stop lever with a trapezoid cross section is movably arranged on the second mixing part, and a plurality of air holes for injecting hydrogen obliquely downwards are formed in two inclined planes of the stop lever;
and the mounting block is connected with the connecting pipe and is used for absorbing water molecules in the airflow.
Preferably, a plurality of the air holes on the same inclined plane are distributed in a linear array, and the aperture gradually decreases from the center to the two ends.
Preferably, the second mixing part is symmetrically and rotatably provided with an impeller for guiding the airflow, and the blades of the impeller are covered with a catalyst.
Preferably, the second mixing part is movably provided with a fixing plate, the impeller is rotatably mounted on the fixing plate, and a rotation damper is arranged between the impeller and the fixing plate.
Preferably, the blades are provided with arc-shaped grooves distributed in a rectangular array.
Preferably, a first chamber is formed in the mounting block, arc-shaped surfaces are symmetrically arranged at the bottom of the first chamber, and two arc-shaped surface connecting lines are located right below the connecting pipes.
Preferably, a first insert block is movably arranged on the first chamber, a groove flush with the arc-shaped surface is formed in the first insert block, and a molecular sieve is covered on the inner wall of the groove.
Preferably, a second chamber communicated with the connecting pipe of the next purification unit is arranged in the installation block, and channels for communicating the first chamber with the second chamber are symmetrically arranged between the first chamber and the second chamber.
Preferably, a second insert block is movably arranged on the second chamber, a'm' -shaped protruding block is arranged on the second insert block, and the surface of the protruding block is covered with a molecular sieve.
An argon recovery and purification process comprises an argon recovery and purification device in the scheme, and further comprises the following steps:
s1, introducing the recovered argon into a connecting pipe of a purification unit, and sucking hydrogen through a gas pipe in the process of passing through a first mixing part;
s2, the air flow hits the stop lever to form a vortex, and the air hole sprays hydrogen to disperse the vortex;
s3, the air flow hits the impeller, and the catalyst on the blade catalyzes the combination of hydrogen and oxygen to generate water;
s4, the gas flows through the mounting block, moisture in the gas is absorbed by a molecular sieve in the mounting block, and then the gas is led into the next purification unit to continue the purification work.
In the technical scheme, the argon recovery and purification device and the process provided by the invention have the following beneficial effects: when argon purification is carried out, argon is introduced into a connecting pipe of a purification unit, the argon flows along a first mixing part and gradually moves towards a narrow part, the diameter of an argon flow channel is continuously reduced, the pressure is continuously increased, the flow speed is continuously increased, a certain vacuum degree is generated at the joint of the narrow part and a gas transmission pipe, then hydrogen in the gas transmission pipe is sucked into the first mixing part, the hydrogen and the argon are initially mixed in the first mixing part, the mixed gas flows along the gradually increased pipe diameter after passing through the narrow part, the friction between the gas flow and the pipe wall is smaller, the gas flow speed is kept, the mixed gas enters a second mixing part, the mixed gas impinges on the plane at the top of a stop lever and forms vortex towards two sides of the stop lever, and the hydrogen and the helium are further mixed, the catalyst at the top of the stop lever catalyzes hydrogen and oxygen to generate chemical combination reaction, water is generated by combination, then air holes on the stop lever spray hydrogen to the inclined lower side, high-speed flowing hydrogen pierces into vortex, the vortex is dispersed, hydrogen and argon are further mixed, meanwhile, the supplementary hydrogen increases the number of gas molecules in the connecting pipe, the internal air pressure and the speed of the connecting pipe are further increased, so as to compensate the speed loss caused by the impact of air flow on the stop lever, then the air flow enters the installation block, the installation block absorbs water molecules in the air flow, and the air is led into the next purification unit, the purification work is continued, and the hydrogen and the oxygen in the argon are fully combined by injecting the hydrogen into the argon for many times, so that the water is generated by catalytic combination.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of a connection pipe according to an embodiment of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a schematic view of the internal structure of a mounting block according to an embodiment of the present invention;
FIG. 6 is an enlarged view of FIG. 5 at C;
FIG. 7 is a schematic diagram of a channel according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a first chamber according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an explosion structure according to an embodiment of the present invention.
Reference numerals illustrate:
1. a purification unit; 11. a connecting pipe; 111. a narrow portion; 112. a gas pipe; 1121. a baffle; 113. a stop lever; 114. air holes; 115. an impeller; 116. a blade; 117. a fixing piece; 118. a locking piece; 119. a shifting block; 12. a mounting block; 121. a first chamber; 122. a first plug; 123. a guide block; 124. a second chamber; 125. a channel; 126. and a second plug.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1-9, an argon recovery purification device comprises a plurality of purification units 1 connected end to end, wherein the purification units 1 comprise:
the connecting pipe 11 comprises a first mixing part and a second mixing part, wherein a narrow part 111 is arranged in the first mixing part, the pipe diameter of the first mixing part gradually increases from the narrow part 111 to two ends, a gas pipe 112 for hydrogen to flow in is arranged on the narrow part 111, a stop lever 113 with a trapezoid cross section is movably arranged on the second mixing part, and a plurality of air holes 114 for injecting hydrogen obliquely downwards are formed in two inclined planes of the stop lever 113;
a mounting block 12 connected to the connection pipe 11 and for absorbing water molecules in the air flow.
Specifically, a baffle 1121 is disposed at a connection between the gas pipe 112 and the narrow portion 111, and a catalyst for catalyzing the combination of hydrogen and oxygen is covered on top of the blocking rod 113.
Further, when argon purification is performed, argon is introduced into the connecting pipe 11 of the purification unit 1, flows along the first mixing part and gradually moves towards the narrow part 111, the diameter of the argon flow channel 125 is continuously reduced, the pressure is continuously increased, the flow speed is continuously increased, the argon flows along the inclined baffle 1121 in the process of passing through the connection part of the narrow part 111 and the gas pipe 112, the argon flows towards the axis of the connecting pipe 11 of the narrow part 111, the air flow in the first mixing part is preliminarily disturbed, the air flow in the first mixing part is not simple and stable, a certain vacuum degree is generated at the connection part of the narrow part 111 and the gas pipe 112, then hydrogen in the gas pipe 112 is sucked into the first mixing part, the hydrogen enters the air flow from the air flow part preliminarily disturbed by the baffle 1121, the hydrogen and the argon are preliminarily mixed in the first mixing part, the mixed gas flows along the gradually increased pipe diameter after passing through the narrow part 111, the friction between the air flow and the pipe wall is small, the flow speed of the air is kept, the air enters a second mixing part, the mixed air impinges on the plane at the top of the stop lever 113 and forms eddies towards the two sides of the stop lever 113, the hydrogen and the helium are further mixed, the catalyst at the top of the stop lever 113 catalyzes the hydrogen and the oxygen to carry out a combination reaction to generate water, then the air holes 114 on the stop lever 113 spray the hydrogen obliquely downwards, the high-speed flowing hydrogen pierces the eddies to break up the eddies and further mix the hydrogen and the argon, the supplementary hydrogen increases the number of gas molecules in the connecting pipe 11, the air pressure and the speed in the connecting pipe 11 are further increased to compensate the speed loss caused by the air impinging on the stop lever 113, then the air enters the installation block 12 to absorb the water molecules in the air flow, and the air is led into the next purification unit 1, and continuing the purification work, and fully combining the hydrogen with oxygen in the argon by injecting the hydrogen into the argon for a plurality of times, so as to synthesize water through catalysis.
In the above technical scheme, when the purification of argon is performed, argon is introduced into the connecting pipe 11 of the purification unit 1, argon flows along the first mixing part and gradually moves towards the narrow part 111, the diameter of the argon flow channel 125 is continuously reduced, the pressure is continuously increased and the flow speed is also continuously accelerated, a certain vacuum degree is generated at the connection part of the narrow part 111 and the gas transmission pipe 112, then hydrogen in the gas transmission pipe 112 is sucked into the first mixing part, hydrogen and argon are initially mixed in the first mixing part, mixed gas flows along the pipe diameter which is gradually increased after passing through the narrow part 111, the friction between the air flow and the pipe wall is small, the gas flow rate is kept, the mixed gas enters the second mixing part, the mixed gas impinges on the plane at the top of the stop lever 113 and forms a vortex towards the two sides of the stop lever 113, the hydrogen and the helium are further mixed, the catalyst at the top of the stop lever 113 catalyzes the hydrogen and the oxygen to generate a combined reaction, then the gas hole 114 on the stop lever 113 sprays the hydrogen obliquely downwards, the hydrogen flowing at a high speed pierces the first mixing part, and further makes the hydrogen and the argon diffuse, and the hydrogen and the mixed gas are simultaneously added, the gas is additionally mixed with the hydrogen along the pipe diameter which is gradually increased, the friction between the air flow and the pipe wall is gradually increased, the gas flow is further introduced into the water molecule 11 through the water molecule, the hydrogen and the hydrogen is further purified by the air flow through the air flow, and the air flow 12, and the hydrogen is further purified by the combined into the air flow through the water flow through the internal pressure guide block 12, and the flow of the flow channel 12, and the flow is further purified by the flow through the flow of the hydrogen and the flow through the pipe.
As a further provided embodiment of the present invention, the plurality of air holes 114 on the same inclined plane are distributed in a linear array, and the aperture gradually decreases from the center to the two ends.
Specifically, the inside of the blocking rod 113 is provided with an air passage connected with a plurality of air holes 114, and both ends of the blocking rod 113 are communicated with a pipeline for inputting hydrogen.
Further, hydrogen is input into the air passage inside the stop lever 113 from two ends of the stop lever 113 and is discharged from the air holes 114 on the stop lever 113, the pore diameters of a plurality of air holes 114 on the same inclined plane of the stop lever 113 are gradually reduced from the center to two ends, the pore diameters of the air holes 114 close to two ends of the stop lever 113 are smaller, the capability of outputting hydrogen is limited, more hydrogen is finally converged in the middle of the stop lever 113, and is sprayed out from the air holes 114 with larger pore diameters in the middle of the stop lever 113, and hydrogen is injected into the vortex.
As still another embodiment of the present invention, the second mixing part is symmetrically provided with an impeller 115 for guiding the air flow, and the blades 116 of the impeller 115 are covered with a catalyst.
Specifically, after the air flow passes through the stop lever 113, the air flow continues to flow along the second mixing part, the air flow impinges on the blades 116 of the impeller 115, the catalyst on the blades 116 catalyzes hydrogen and oxygen contacted with the air flow, the hydrogen and the oxygen are combined into water, meanwhile, the air flow pushes the impeller 115 to rotate, the blades 116 contacted with the air flow are continuously changed, the catalyst on the blades 116 can be used uniformly, the catalytic capability of the blades 116 on the impeller 115 is ensured to be kept at a similar level, and therefore, the catalyst on the impeller 115 does not have great loss when the impeller 115 is replaced.
As a further embodiment of the present invention, the second mixing part is movably provided with a fixing plate 117, and the impeller 115 is rotatably mounted on the fixing plate 117 with a rotation damper therebetween.
Specifically, the fixing piece 117 is symmetrically and movably provided with a locking piece 118 for locking the locking piece 118 on the connecting pipe 11, the locking piece 118 is provided with a shifting block 119 extending to the outer side of the fixing piece 117, a spring is arranged between the shifting block 119 and the fixing piece 117, the pipe wall of the connecting pipe 11 is provided with a groove matched with the locking piece 118, and the diameter of the fixing piece 117 is larger than that of the impeller 115.
Further, when the impeller 115 needs to be replaced, two shifting blocks 119 are pinched, the shifting blocks 119 are close to the center of the fixing piece 117 and drive the locking piece 118 to be separated from the connecting pipe 11, at the moment, the fixing piece 117 can be pulled, the impeller 115 is taken out of a pipeline by the fixing piece 117, the shifting blocks 119 of the fixing piece 117 on the new impeller 115 are pinched again, the impeller 115 and the fixing piece 117 are inserted into the pipeline, the fixing piece 117 is matched with a groove on the connecting pipe 11, the shifting blocks 119 are loosened, the locking piece 118 is pushed by a spring to move, the locking piece 118 is inserted into the groove on the connecting pipe 11, the fixing piece 117 is fixed on the pipeline, the diameter of the fixing piece 117 is larger than that of the impeller 115, a step groove matched with the fixing piece 117 is formed on the connecting pipe 11, and a gap between the impeller 115 and the connecting pipe 11 can be sealed by the fixing piece 117; in the process of gas flow, the gas impinges on the blades 116 of the impeller 115 to push the impeller 115 to rotate, but the rotation damping is arranged between the impeller 115 and the fixed disk, the rotation speed of the impeller 115 is slower, the gas flow can not be guided to flow to the obliquely-downward mounting block 12, but can be guided to flow to the middle part of the connecting pipe 11 instead, and collides with the gas flow which normally flows in the middle part of the connecting pipe 11, so that the gas flow collision is more severe, and the mixing degree of hydrogen and helium is further improved.
As a further embodiment of the present invention, the blades 116 are provided with arcuate grooves distributed in a rectangular array.
Specifically, when the airflow impinges on the blade 116, part of the airflow can enter the arc-shaped groove and flow along the arc-shaped groove, and at the moment, the airflow is guided by the arc-shaped groove to form a small airflow obliquely upwards, and the small airflow obliquely upwards collides with the airflow to be contacted with the blade 116, so that the turbulence degree of the airflow is increased, and meanwhile, the arc-shaped groove on the blade 116 can increase the surface area of the blade 116 contacted with the airflow, so that more catalysts can be carried, and hydrogen and oxygen in the airflow are catalyzed to combine.
As a further embodiment of the present invention, the first chamber 121 is provided in the mounting block 12, and the bottom of the first chamber 121 is symmetrically provided with an arc surface, and two arc surface connecting lines are located right below the connecting pipe 11.
Specifically, after the air flow in the connecting pipe 11 enters the first chamber 121 inside the mounting block 12, the air flow first collides with the connecting line of the two arc surfaces inside the first chamber 121, is divided into two parts by the connecting line, flows along the arc surface at the bottom of the first chamber 121, and further forms upward air flow, contacts and mixes with the small air flow scattered by striking on the connecting line, meanwhile, the air flow flows into the wide first chamber 121 through the narrow connecting pipe 11, the flowing speed of the air flow is greatly reduced, the carrying capacity of water molecules with higher density in the air flow is weakened, and the removal of the water molecules in the air flow is facilitated.
As a further embodiment of the present invention, a first insert 122 is movably disposed on the first chamber 121, a groove flush with the arc surface is formed on the first insert 122, and the inner wall of the groove is covered with a molecular sieve.
Specifically, fixing lugs are symmetrically disposed on the first insert block 122, and the fixing lugs fix the first insert block 122 on the mounting block 12 by bolts.
Further, the air flow flows from the narrow connection pipe 11 into the wide first chamber 121, the flow speed thereof is greatly reduced, the carrying capacity of water molecules with higher density therein is reduced, and meanwhile, the air flow flows along the arc bottom surface of the first chamber 121, and when flowing through the groove on the first insert 122 which is flush with the arc surface, the molecular sieve on the inner wall of the groove absorbs the water molecules in the air flow.
As a further embodiment of the present invention, the second chamber 124 communicating with the connection pipe 11 of the next purification unit 1 is provided inside the installation block 12, and the channels 125 communicating the first chamber 121 and the second chamber 124 are symmetrically provided between them.
Specifically, the first chamber 121 is symmetrically provided therein with guide blocks 123 for guiding the air flow into the passage 125.
Further, during the process that the air flows along the arc bottom surface of the first chamber 121, the air gradually flows to the upper portion of the first chamber 121, the air flowing speed is further reduced, the carrying capacity of the air for water molecules is weaker, so that the molecular sieve on the first insert block 122 absorbs the water molecules in the air flow, then the air flow hits the inclined surface of the guide block 123, the air flow is guided into the channel 125 by the guide block 123, the air flow passes through the channel 125 and enters the second chamber 124, the air flowing speed is further reduced, and the carrying capacity of the air flow for water molecules is weaker, so that the water molecules in the air flow are removed.
As a further embodiment of the present invention, a second insert block 126 is movably disposed on the second chamber 124, a "m" shaped bump is disposed on the second insert block 126, and a molecular sieve is covered on a surface of the bump.
Specifically, the second insert block 126 is symmetrically provided with fixing lugs, and the fixing lugs fix the second insert block 126 on the mounting block 12 through bolts.
Further, (1) when argon purification is performed, argon is introduced into the connecting pipe 11 of the purification unit 1, flows along the first mixing part and gradually moves towards the narrow part 111, the diameter of the argon flow channel 125 is continuously reduced, the pressure is continuously increased and the flow speed is continuously accelerated, the argon flows along the inclined baffle 1121 in the process of passing through the connection part of the narrow part 111 and the gas pipe 112, flows towards the axis of the connecting pipe 11 of the narrow part 111, the gas flow in the first mixing part is preliminarily disturbed, the gas flow in the first mixing part is not simple and stable laminar flow, a certain vacuum degree is generated at the connection part of the narrow part 111 and the gas pipe 112, then hydrogen in the gas pipe 112 is sucked into the first mixing part, the hydrogen enters the gas flow from the gas flow part preliminarily disturbed by the baffle 1121, the hydrogen and the argon are preliminarily mixed in the first mixing part, the mixed gas flows along the gradually increased pipe diameter after passing through the narrow part 111, the friction between the air flow and the pipe wall is smaller, the air flow speed is kept, the air flow enters a second mixing part, the mixed gas impinges on the plane at the top of the stop lever 113 and forms eddies towards the two sides of the stop lever 113, the hydrogen and the helium are further mixed, the catalyst at the top of the stop lever 113 catalyzes the hydrogen and the oxygen to carry out a combined reaction to generate water, the hydrogen is input into the air passage inside the stop lever 113 from the two ends of the stop lever 113 and is discharged from the air holes 114 on the stop lever 113, the pore diameters of a plurality of air holes 114 on the same inclined surface of the stop lever 113 are gradually reduced from the center to the two ends, the pore diameters of the air holes 114 near the two ends of the stop lever 113 are smaller, the capability of outputting the hydrogen is limited, more hydrogen is finally converged in the middle part of the stop lever 113 and is sprayed out from the air holes 114 with larger pore diameters in the middle part of the stop lever 113, the hydrogen flowing at high speed penetrates into the eddies to disperse the eddies, and further mixes the hydrogen and the argon, while the supplementary hydrogen increases the number of gas molecules inside the connection pipe 11, the gas pressure and velocity inside the connection pipe 11 are further increased to compensate for the velocity loss caused by the gas flow impinging on the blocking rod 113.
(2) The air current continues to flow along connecting pipe 11, the air current that is close to connecting pipe 11 side strikes on the blade 116 of impeller 115, promote impeller 115 rotation, but be provided with rotation damping between impeller 115 and the fixed disk, impeller 115 rotation speed is slower, can not guide the air current to the installation piece 12 flow of sloping below, can guide the air current to flow to connecting pipe 11 middle part instead, collide with the air current that normally flows in connecting pipe 11 middle part, make the air current collide more violently, and then improve the mixed degree of hydrogen and helium, when the air current strikes on blade 116, partial air current can get into the arc recess, and flow along the arc recess, the air current is guided by the arc recess and forms the little air current of sloping above at this moment, the little air current of sloping above collides with the air current that is about to contact with blade 116, the chaotic degree of air current has been increased, the arc recess on the blade 116 can increase the surface area that blade 116 contacted with the air current, can carry more catalysts, the hydrogen and oxygen combination in the catalytic air current.
(3) The air flow in the middle of the connecting pipe 11 brings the air flow beside into the first chamber 121 in the mounting block 12, the air flow flows into the wide first chamber 121 from the narrow connecting pipe 11, the flow speed is greatly reduced, the carrying capacity of water molecules with larger density in the air flow is weakened, the water molecules in the air flow are removed, the air flow firstly impacts on the connecting line of the two arc surfaces in the first chamber 121 in the flowing process and is divided into two parts by the connecting line, then flows along the arc surface at the bottom of the first chamber 121, upward air flow is formed, the air flow contacts and mixes with small air flows scattered by impacting on the connecting line, and molecular sieves on the inner wall of the groove absorb the water molecules in the air flow when the air flows through the groove on the first inserting block 122 which is flush with the arc surface.
(4) When the air flows to the upper part of the first chamber 121, the air circulation speed is further reduced, the carrying capacity of the air molecules is weaker, so that the molecular sieve on the first insert block 122 absorbs the water molecules in the air flow, then the air flow is impacted on the inclined surface of the guide block 123, the guide block 123 guides the air flow into the channel 125, the air flow passes through the channel 125 and enters the second chamber 124, the air flow speed is further reduced, the carrying capacity of the air molecules is weaker, the molecular sieve covered by the surface of the 'rice' -shaped protruding block is impacted on the second insert block 126, and meanwhile, the protruding block can absorb the water molecules in the air flow, so that the air flow speed is further reduced, and most of the water molecules in the air flow can be removed in the second chamber 124.
(5) Then the gas flow enters the connecting pipe 11 of the next purification unit 1 from the second cavity 124, after the gas enters the connecting pipe 11, the gas pressure is increased, the flow speed is also increased, the purification operation is continued in the purification unit 1, the hydrogen is fully combined with the oxygen in the argon through injecting the hydrogen into the argon for a plurality of times, and most of the oxygen in the argon can be removed through catalyzing and synthesizing into water.
Example two
An argon recovery and purification process comprises an argon recovery and purification device in the scheme, and further comprises the following steps:
s1, when argon purification is performed, argon is introduced into the connecting pipe 11 of the purification unit 1, flows along the first mixing part and gradually moves towards the narrow part 111, the diameter of the argon flow channel 125 is continuously reduced, the pressure is continuously increased, the flow speed is continuously accelerated, the argon flows along the inclined baffle 1121 in the process of passing through the connection part of the narrow part 111 and the gas pipe 112, flows towards the axis of the connecting pipe 11 of the narrow part 111, the air flow in the first mixing part is preliminarily disturbed, the air flow in the first mixing part is not simple and stable, a certain vacuum degree is generated at the connection part of the narrow part 111 and the gas pipe 112, then hydrogen in the gas pipe 112 is sucked into the first mixing part, the hydrogen enters the air flow from the air flow part preliminarily disturbed by the baffle 1121, the hydrogen and the argon are preliminarily mixed in the first mixing part, the mixed gas flows along the gradually increased pipe diameter after passing through the narrow part 111, the friction between the air flow and the pipe wall is smaller, the air flow speed is kept, the air flow enters a second mixing part, the mixed gas impinges on the plane at the top of the stop lever 113 and forms eddies towards the two sides of the stop lever 113, the hydrogen and the helium are further mixed, the catalyst at the top of the stop lever 113 catalyzes the hydrogen and the oxygen to carry out a combined reaction to generate water, the hydrogen is input into the air passage inside the stop lever 113 from the two ends of the stop lever 113 and is discharged from the air holes 114 on the stop lever 113, the pore diameters of a plurality of air holes 114 on the same inclined surface of the stop lever 113 are gradually reduced from the center to the two ends, the pore diameters of the air holes 114 near the two ends of the stop lever 113 are smaller, the capability of outputting the hydrogen is limited, more hydrogen is finally converged in the middle part of the stop lever 113 and is sprayed out from the air holes 114 with larger pore diameters in the middle part of the stop lever 113, the hydrogen flowing at high speed penetrates into the eddies to disperse the eddies, and further mixes the hydrogen and the argon, while the supplementary hydrogen increases the number of gas molecules inside the connection pipe 11, the gas pressure and velocity inside the connection pipe 11 are further increased to compensate for the velocity loss caused by the gas flow impinging on the blocking rod 113.
S2, the air flow continues to flow along the connecting pipe 11, the air flow close to the side edge of the connecting pipe 11 collides on the blades 116 of the impeller 115 to push the impeller 115 to rotate, but the rotation damping is arranged between the impeller 115 and the fixed disc, the rotation speed of the impeller 115 is low, the air flow is not guided to flow to the installation block 12 at the inclined lower part, but is guided to flow to the middle part of the connecting pipe 11, the air flow collides with the air flow normally flowing in the middle part of the connecting pipe 11, so that the air flow collides more severely, the mixing degree of hydrogen and helium is improved, when the air flow collides on the blades 116, part of the air flow enters the arc-shaped grooves and flows along the arc-shaped grooves, at the moment, the air flow is guided by the arc-shaped grooves to form small air flow at the inclined upper part, the small air flow at the inclined upper part collides with the air flow which is about to contact with the blades 116, the confusion degree of the air flow is increased, and meanwhile, the arc-shaped grooves on the blades 116 can increase the surface area which contacts the air flow, more catalysts can be carried, and the hydrogen and oxygen in the catalytic air flow are combined.
S3, the air flow in the middle of the connecting pipe 11 brings the air flow beside into the first chamber 121 in the mounting block 12, the air flow flows into the wide first chamber 121 through the narrow connecting pipe 11, the flow speed is greatly reduced, the carrying capacity of water molecules with larger density in the air flow is weakened, the water molecules in the air flow are removed, the air flow firstly impacts on the connecting line of the two arc surfaces in the first chamber 121 in the flowing process and is divided into two parts by the connecting line, then flows along the arc surfaces at the bottom of the first chamber 121, upward air flow is formed, the air flow contacts and mixes with small air flows scattered by impacting on the connecting line, and molecular sieves on the inner wall of the groove absorb the water molecules in the air flow when the air flow flows through the groove on the first inserting block 122 which is flush with the arc surfaces.
S4, when the air flows to the upper part of the first chamber 121, the air flowing speed is further reduced, the carrying capacity of the air is weaker, so that the molecular sieve on the first insert block 122 absorbs the water molecules in the air flow, then the air flow is impacted on the inclined surface of the guide block 123, the guide block 123 guides the air flow into the channel 125, the air flow passes through the channel 125 and enters the second chamber 124, the air flowing speed is further reduced, the carrying capacity of the air is weaker, the molecular sieve covered by the surface of the'm' -shaped protruding block of the second insert block 126 can absorb the water molecules in the air flow, and meanwhile, the protruding block blocks the air flow, so that the air flow speed is further reduced, and the water molecules in the air flow can be removed from the second chamber 124 to a great extent.
S5, the gas flow enters the connecting pipe 11 of the next purification unit 1 from the second cavity 124, after the gas enters the connecting pipe 11, the gas pressure is increased, the flow speed is also increased, the purification operation is continued in the purification unit 1, the hydrogen is fully combined with the oxygen in the argon through injecting the hydrogen into the argon for a plurality of times, and most of the oxygen in the argon can be removed through catalyzing and synthesizing into water.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. An argon recovery purification device, characterized by comprising a plurality of purification units (1) connected end to end, the purification units (1) comprising:
the connecting pipe (11) comprises a first mixing part and a second mixing part, wherein a narrow part (111) is arranged in the first mixing part, the pipe diameter of the first mixing part gradually increases from the narrow part (111) to two ends, a gas pipe (112) for hydrogen to flow in is arranged on the narrow part (111), a stop lever (113) with a trapezoid cross section is movably arranged on the second mixing part, and a plurality of air holes (114) for spraying hydrogen obliquely downwards are formed in two inclined surfaces of the stop lever (113);
and a mounting block (12) connected to the connection pipe (11) and used for absorbing water molecules in the air flow.
2. An argon recovery purification device according to claim 1, wherein a plurality of the air holes (114) on the same inclined plane are distributed in a linear array and the aperture gradually decreases from the center to both ends.
3. An argon recovery purification device according to claim 1, wherein the second mixing part is symmetrically provided with impellers (115) for guiding the gas flow, and the blades (116) of the impellers (115) are covered with a catalyst.
4. An argon recovery purification device according to claim 3, wherein the second mixing part is movably provided with a fixing piece (117), and the impeller (115) is rotatably mounted on the fixing piece (117) with a rotation damper therebetween.
5. An argon recovery and purification device according to claim 3, wherein the blades (116) are provided with arc-shaped grooves distributed in a rectangular array.
6. The argon recovery and purification device according to claim 1, wherein a first chamber (121) is formed in the installation block (12), arc surfaces are symmetrically arranged at the bottom of the first chamber (121), and two arc surface connecting lines are located under the connecting pipe (11).
7. The argon recovery and purification device according to claim 6, wherein a first insert block (122) is movably arranged on the first chamber (121), a groove flush with the arc-shaped surface is formed in the first insert block (122), and a molecular sieve is covered on the inner wall of the groove.
8. An argon recovery purification device according to claim 6, characterized in that a second chamber (124) communicated with the connecting pipe (11) of the next purification unit (1) is arranged in the installation block (12), and channels (125) for communicating the first chamber (121) with the second chamber (124) are symmetrically arranged.
9. The argon recovery and purification device according to claim 8, wherein a second insert (126) is movably arranged on the second chamber (124), a "rice" -shaped protruding block is arranged on the second insert (126), and a molecular sieve is covered on the surface of the protruding block.
10. An argon recovery and purification process, characterized by comprising the argon recovery and purification device according to any one of the preceding claims 1-9, further comprising the steps of:
s1, introducing the recovered argon into a connecting pipe (11) of a purification unit (1), and sucking the hydrogen through a gas pipe (112) in the process of passing through a first mixing part;
s2, the air flow hits the stop lever (113) to form a vortex, and the air hole (114) sprays hydrogen to disperse the vortex;
s3, the air flow hits the impeller (115), and the catalyst on the blades (116) catalyzes the combination of hydrogen and oxygen to generate water;
s4, enabling the gas to flow through the mounting block (12), absorbing moisture in the gas by a molecular sieve in the mounting block (12), and then guiding the gas into the next purification unit (1) to continue the purification work.
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