Argon self-circulation system

Abstract

The invention relates to an argon self-circulation system applied to the technical field of argon systems, which comprises a cabinet body, a circulation pipeline, a storage filter tank, a space piston module, a gas inlet end pipe, a filter particle pipe, a telescopic pipe, a particle storage tank, a particle input pipe, an upper hole plug, a lower hole plug, an extrusion port and a pressure plug, the internal space of the storage filter tank is changed through the telescopic change of the space piston module, a circulating system adapts to the change of the amount of argon, the circulating effect of the argon in the system is effectively improved, and when the space piston module conducts telescopic motion, the filter particle pipe is driven to do lifting motion, so that the filter particle pipe is driven to do lifting motion by changing the distance between the upper hole plug and the lower hole plug. According to the argon filtering device, used filtering particles are sequentially extruded out of the pressure plug, subsequent new filtering particles are sequentially fed into the filtering particle pipe through the particle input pipe, orderly replacement of the argon filtering particles is achieved, management of an argon circulation system is facilitated, and the argon filtering effect of the argon circulation system is effectively improved.

Description

Technical Field

[0001] The invention relates to an argon self-circulating system, in particular to an argon self-circulating system applied in the technical field of argon systems. Background Art

[0002] Argon has a wide range of applications, including electric welding, semiconductor manufacturing, and the medical field. As an important colorless, odorless, inert gas, argon is widely used in modern industry, medicine, scientific research, and life. The equipment is filtered through multiple stages, and then circulated through a circulating pump to achieve the required purity of Ar.

[0003] The specification of Chinese invention patent CN201910938342.0 discloses "An Argon Gas Recycling System", including an argon device, a first cooler connected to the exhaust port of the argon device, a first compressor connected to the first cooler, a filter connected to the first compressor, a denitrification unit connected to the filter, a second cooler connected to the denitrification unit, a second compressor connected to the second cooler, a first heater connected to the second compressor, the first heater is connected to the air inlet of the argon device, the denitrification unit includes a zirconium-aluminum alloy powder that can contact the argon entering the denitrification unit, and a heating device for heating the denitrification unit. It can effectively remove impurities in argon gas and realize the recycling of argon gas, thereby reducing energy consumption and unit production costs.

[0004] As argon is circulated and filtered in the system, the newly added argon is circulated and filtered together with the original argon. The filtered argon is extracted from the circulation system, and the extracted and consumed argon may not be immediately returned to the circulation system. Therefore, after the argon is consumed, there is no recycled argon input, and the argon circulation pressure is reduced, affecting the circulation of argon. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the change of the amount of argon in the argon circulation system affects the gas pressure of the argon circulation, thereby affecting the circulation of the argon.

[0006] In order to solve the above problems, the present invention provides an argon self-circulation system, including a cabinet and a circulation pipeline inside the cabinet, a circulation pump, a filter box and a filter storage tank are connected in series on the path of the circulation pipeline, and a space piston module is movably connected inside the filter storage tank;

[0007] The top of the filter storage tank is fixedly connected with an air intake end pipe, the middle of the space piston module is fixedly connected with a particle filter tube, a telescopic tube is fixedly connected between the top of the particle filter tube and the bottom of the air intake end tube, the middle of the air intake end tube is fixedly connected with a particle storage tank, the bottom of the particle storage tank is fixedly connected with a particle input pipe, the bottom of the particle input pipe is fixedly connected with an upper hole plug, the upper hole plug is movably connected with the particle filter tube, a ventilation window is provided at the connection between the particle filter tube and the space piston module, a lower hole plug is fixedly connected to the bottom of the particle filter tube, the lower hole plug is located above the ventilation window, an extrusion port is provided in the middle of the lower hole plug, and a pressure plug is fixedly connected to the middle of the extrusion port.

[0008] In the above-mentioned argon self-circulation system, the internal space of the filter tank is changed by the expansion and contraction of the space piston module, so that the circulation system can adapt to the change of the gas volume of argon, effectively avoid the pressure change of argon, and thus effectively improve the circulation effect of argon in the system.

[0009] As a further improvement of the present application, the particle input pipe is internally rotatably connected with a spiral conveying shaft, the bottom end of which passes through the upper hole plug. The spiral conveying shaft is utilized to realize orderly conveying of filtered particles into the particle filter pipe and effectively prevent the filtered particles from being pushed back into the particle input pipe.

[0010] As a further improvement of the present application, the telescopic tube is made of a rubber bellows, the pressure plug is arranged in a conical shape, and the pressure plug is made of an elastic rubber material, which effectively improves the telescopic stability of the telescopic tube. When the conical pressure plug is squeezed, the edge of the pressure plug is concave inward, thereby achieving the extrusion of the filter particles, which facilitates the subsequent restoration of the shape of the pressure plug and restores the closed state of the extrusion port.

[0011] As a further improvement of the present application, the input end of the air intake pipe is fixedly connected to a buffer tank, and the interior of the buffer tank is movably connected to a buffer piston module. The buffer tank is utilized to buffer changes in the gas circulation space of the system, thereby effectively reducing the impact of gas volume changes on the telescopic movement of the space piston module.

[0012] As another improvement of the present application, the control ends of the buffer piston module and the space piston module are commonly connected to the system module. The input end of the system module is connected to a flow detection unit. The flow detection unit is a flow sensor, and the flow detection unit is respectively installed at the input end and the output end of the circulation pipeline. The system module performs real-time detection of the residual argon gas in the system through the flow detection unit, thereby providing change values ​​for the buffer piston module and the space piston module.

[0013] As another improved supplement of the present application, the interior of the system module includes a space constant value module, which is used to input the telescopic movement value of the space piston module to the system module, and calculate the movement value of the buffer piston module by the movement value input by the space constant value module and the gas volume fluctuation value of argon gas, thereby effectively improving the stability of the telescopic value of the space piston module and effectively improving the utilization rate and replacement frequency of the filtered particles.

[0014] As another improved supplement of the present application, a recovery chamber is opened inside the space piston module, and the recovery chamber is connected to the extrusion port. By recovering the extruded used filter particles and part of the argon gas into the recovery chamber, the argon gas and the filter particles coexist in the recovery chamber to avoid leakage of the argon gas.

[0015] As another improvement of the present application, a recovery tube is fixedly connected to the bottom of the recovery chamber in a ring shape, and a particle recovery cup is inserted into the bottom of the recovery tube. The filtered particles entering the recovery chamber are subsequently concentrated in the particle recovery cup in the recovery tube, and the used filtered particles are recovered by taking out the particle recovery cup.

[0016] As another improvement of the present application, a compression plug module is fixedly connected to the bottom of the recovery chamber. The compression plug module vertically corresponds to the recovery tube. The compression plug module is used to squeeze the filtered particles in the recovery tube to squeeze out the argon between the particles and the argon adsorbed inside the particles. Finally, the compression plug module seals the recovery tube to effectively avoid leakage of argon when taking out the particle recovery cup.

[0017] As another improvement of the present application, a return air groove is opened on the top inner wall of the recovery pipe, and a cleaning bristle is fixedly connected to the middle part of the compression plug module. The cleaning bristle corresponds to the return air groove, and the argon gas squeezed out of the recovery pipe is returned to the recovery chamber through the return air groove. At the same time, the cleaning bristle occupies the internal space of the return air groove and wipes the internal space of the return air groove, effectively preventing particulate debris from clogging the return air groove.

[0018] In summary, the present invention provides temporary storage and filtering effects for the argon in the circulation system through the storage filter tank. When the argon inventory in the circulation system changes, the internal space of the storage filter tank is changed through the expansion and contraction of the space piston module, so that the circulation system can adapt to the change in the gas volume of argon, effectively avoiding the influence of the pressure change of argon, thereby effectively improving the circulation effect of argon in the system. When the space piston module is extended and contracted, it drives the filter particle tube to move up and down, thereby changing the distance between the upper hole plug and the lower hole plug, and then squeezing the filter particles inside the filter particle tube, so that the used filter particles compress the pressure plug to deform, and are squeezed out of the pressure plug in an orderly manner. After the internal space of the filter particle tube is restored, new filter particles are orderly fed into the filter particle tube by the particle input pipe, so that the filter particles of argon are replaced in an orderly manner, which is convenient for the management of the argon circulation system and effectively improves the filtering effect of the argon circulation system on argon. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0020] Figure 2 This is a front perspective structural diagram of a circulation pipeline in the first embodiment of the present application;

[0021] Figure 3 This is a rear perspective structural diagram of the circulation pipeline of the first embodiment of the present application;

[0022] Figure 4 This is a three-dimensional cross-sectional view of a filter tank according to a first embodiment of the present application;

[0023] Figure 5 This is a three-dimensional structural diagram of a filter tank according to a first embodiment of the present application;

[0024] Figure 6 This is a demonstration diagram of the argon gas flow path of the first embodiment of the present application;

[0025] Figure 7 This is a demonstration diagram of filtering particles through a pressure plug according to the first embodiment of the present application;

[0026] Figure 8 This is a system diagram of the second implementation mode of the present application;

[0027] Fig. 9 This is an enlarged view of the recovery tube of the third embodiment of the present application;

[0028] Fig.10 This is a three-dimensional structural diagram of the recovery tube and compression plug module of the third embodiment of the present application.

[0029] Description of the numbers in the figure:

[0030] 1. Cabinet; 101. Circulation pipeline; 102. Circulation pump; 103. Filter box; 104. Filter storage tank; 2. Space piston module; 201. Air inlet end pipe; 202. Filter particle pipe; 203. Telescopic pipe; 204. Particle storage tank; 205. Particle input pipe; 206. Upper hole plug; 207. Ventilation window; 208. Lower hole plug; 209. Extrusion port; 210. Pressure plug; 211. Screw conveyor shaft; 3. Buffer tank; 301. Buffer piston module; 4. Recovery chamber; 401. Recovery pipe; 402. Particle recovery cup; 403. Compression plug module; 404. Return air tank; 405. Cleaning hair. DETAILED DESCRIPTION

[0031] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] Figures 1 to 3 As shown, the argon self-circulation system includes a cabinet 1 and a circulation pipeline 101 inside the cabinet 1, a circulation pump 102, a filter box 103 and a filter storage tank 104 are connected in series on the path of the circulation pipeline 101, and the interior of the filter storage tank 104 is movably connected with a space piston module 2;

[0034] The circulation pipeline 101 in the present scheme is set as two groups, and the two groups of circulation pipelines 101 are connected in parallel through valves, one of which is used to circulate the recovered argon gas, and the other is used to store and circulate the argon gas that has been filtered for multiple cycles. The two groups of circulation pipelines 101 both include a filtering storage tank 104, and the storage tank 104 provides temporary storage and filtering effects for the argon gas in the circulation system. When the argon gas inventory in the circulation system changes, the internal space of the storage tank 104 is changed by the expansion and contraction of the space piston module 2, so that the circulation system can adapt to the change in the gas volume of argon gas, effectively avoiding the pressure change of argon gas, thereby effectively improving the circulation effect of argon gas in the system.

[0035] Figures 4 to 7 It is shown that the top of the filter tank 104 is fixedly connected to an air inlet end pipe 201, the middle of the space piston module 2 is fixedly connected to a particle filter tube 202, a telescopic tube 203 is fixedly connected between the top of the particle filter tube 202 and the bottom of the air inlet end pipe 201, the middle of the air inlet end pipe 201 is fixedly connected to a particle storage tank 204, the bottom of the particle storage tank 204 is fixedly connected to a particle input pipe 205, the bottom of the particle input pipe 205 is fixedly connected to an upper hole plug 206, the upper hole plug 206 is movably connected to the particle filter tube 202, a ventilation window 207 is provided at the connection between the particle filter tube 202 and the space piston module 2, a lower hole plug 208 is fixedly connected to the bottom of the particle filter tube 202, the lower hole plug 208 is located above the ventilation window 207, and an extrusion port 208 is provided in the middle of the lower hole plug 208. 09, a pressure plug 210 is fixedly connected to the middle of the extrusion port 209, and a spiral conveying shaft 211 is rotatably connected to the inside of the particle input pipe 205. The bottom end of the spiral conveying shaft 211 passes through the upper hole plug 206, and the spiral conveying shaft 211 is used to realize the orderly conveying of the filtered particles into the filter particle pipe 202, and effectively prevent the filtered particles from being pushed back to the particle input pipe 205. The telescopic tube 203 is made of a rubber bellows, and the pressure plug 210 is set in a conical shape, and the pressure plug 210 is made of an elastic rubber material, which effectively improves the telescopic stability of the telescopic tube 203. When the conical pressure plug 210 is squeezed, the edge of the pressure plug 210 is concave inward, thereby realizing the extrusion of the filtered particles, which is convenient for the pressure plug 210 to restore its shape and restore the closed state of the extrusion port 209.

[0036] When the argon flows in the circulation system, the argon enters the filter tank 104 from the air inlet end pipe 201, passes through the filter tube 202, and is molecularly adsorbed and purified by the filter particles in the filter tube 202 (in the process of purifying argon, molecular adsorption particles play an important role. Molecular sieve is a material with a special pore size and structure. In the field of electric welding, the recovered argon often contains water, nitrogen, carbon dioxide, and methane. These impurities are commonly used for filter particles including zeolite, aluminosilicate, and activated carbon). When the argon reserve in the circulation system decreases, the space piston module 2 extends to drive the filter tube 202 to move upward, shortening the upper hole plug 206. The distance between the filter module 202 and the upper hole plug 206 is used to squeeze the filter particles inside the filter tube 202. The used filter particles compress the pressure plug 210 to deform and are squeezed out of the pressure plug 210 in an orderly manner. When the argon gas reserve increases, the space piston module 2 contracts, and the filter tube 202 descends to restore the internal space. New filter particles are orderly fed into the filter tube 202 from the particle input pipe 205. The spiral conveying shaft 211 is used to orderly transport the filter particles into the filter tube 202, and effectively prevent the filter particles from being pushed back into the particle input pipe 205, so as to realize the orderly replacement of the filter particles of argon, facilitate the management of the argon gas circulation system, and effectively improve the filtering effect of the argon gas circulation system on argon.

[0037] The second implementation method:

[0038] Compared with the first embodiment, this embodiment mainly adds a cache tank 3. The specific newly added structure is as follows, and the remaining structure is consistent with the first embodiment.

[0039] Figure 4 and Figure 8 It is shown that the input end of the air inlet end pipe 201 is fixedly connected with a buffer tank 3, and the buffer tank 3 is movably connected with a buffer piston module 301 inside. The buffer tank 3 is used to buffer the changes in the gas circulation space of the system, effectively reducing the influence of the gas volume change on the telescopic movement of the space piston module 2. The control ends of the buffer piston module 301 and the space piston module 2 are commonly connected to the system module. The input end of the system module is connected with a flow detection unit, which is a flow sensor, and the flow detection unit is respectively installed at the input end and the output end of the circulation pipeline 101. The system module detects the residual amount of argon in the system in real time through the flow detection unit, thereby providing a change value for the buffer piston module 301 and the space piston module 2. The system module includes a space constant module inside, which is used to input the telescopic movement value of the space piston module 2 into the system module, and calculate the movement value of the buffer piston module 301 through the movement value input by the space constant module and the gas volume fluctuation value of argon, effectively improving the stability of the telescopic value of the space piston module 2, and effectively improving the utilization rate and replacement frequency of the filter particles.

[0040] By installing a buffer tank 3 on the outside of the storage filter tank 104, the buffer tank 3 is used to buffer the changes in the gas circulation space of the system, thereby effectively reducing the impact of gas volume changes on the telescopic movement of the space piston module 2. That is, the gas volume change amplitude of the argon gas in the circulation system is small, and the spatial change of the buffer tank 3 is further increased, thereby more effectively improving the use effect of the space piston module 2 in the storage filter tank 104. The buffer tank 3 is used to buffer the small and frequent changes in the gas volume of the argon gas in the circulation system, thereby avoiding the frequent operation of the space piston module 2 inside the storage filter tank 104, and effectively reducing the consumption rate of filtered particles. The system module detects the remaining argon gas in the system in real time through the flow detection unit, and recovers the argon gas through the recovery unit. The gas volume and the consumed gas volume of argon are calculated, and the obtained gas volume data provide change values ​​for the buffer piston module 301 and the space piston module 2. The space constant module inputs the telescopic movement value that controls the space piston module 2. This value represents the lifting and lowering movement amplitude of the space piston module 2, that is, the replacement amount of the filtered particles. The movement value of the buffer piston module 301 is calculated by the movement value input by the space constant module and the gas volume fluctuation value of argon. The gas volume change of argon is not enough to allow the space piston module 2 to perform the lifting and lowering movement of the set value. The value of the change in the internal space of the filter tank 104 is obtained by calculation between the values, which effectively improves the stability of the telescopic value of the space piston module 2 and effectively improves the utilization rate and replacement frequency of the filtered particles.

[0041] The third implementation method:

[0042] Compared with the first embodiment, this embodiment mainly adds a recovery chamber 4, and the specific newly added structure is as follows, and the remaining structures are consistent with the first embodiment.

[0043] Figure 7 , Fig. 9 and Fig.10As shown, a recovery chamber 4 is provided inside the space piston module 2, and the recovery chamber 4 is connected to the extrusion port 209. The extruded used filtered particles and part of the argon gas are recovered into the recovery chamber 4, and the argon gas and the filtered particles coexist in the recovery chamber 4 to avoid leakage of the argon gas. The bottom of the recovery chamber 4 is annularly fixedly connected with a recovery pipe 401, and a particle recovery cup 402 is inserted at the bottom of the recovery pipe 401. The filtered particles entering the recovery chamber 4 are subsequently concentrated in the particle recovery cup 402 in the recovery pipe 401. The used filtered particles are recovered by taking out the particle recovery cup 402. The bottom of the recovery chamber 4 is fixedly connected with a compression plug module 403, and the compression plug module 403 corresponds vertically to the recovery pipe 401. The block 403 squeezes the filter particles in the recovery pipe 401, squeezes out the argon between the filter particles and the argon adsorbed inside the filter particles, and finally the compression plug module 403 blocks the recovery pipe 401, effectively avoiding the leakage of argon when taking out the particle recovery cup 402. A return gas groove 404 is provided on the top inner wall of the recovery pipe 401, and a cleaning bristle 405 is fixedly connected to the middle of the compression plug module 403. The cleaning bristle 405 corresponds to the return gas groove 404, and the argon squeezed out of the recovery pipe 401 is returned to the recovery chamber 4 through the return gas groove 404. At the same time, the cleaning bristle 405 occupies the internal space of the return gas groove 404 and wipes the internal space of the return gas groove 404, effectively preventing the filter particle debris from clogging the return gas groove 404.

[0044] The used filter particles discharged through the extrusion port 209 fall into the recovery chamber 4 inside the space piston module 2 for storage and recovery, and finally the filter particles enter the recovery pipe 401 for concentration. During the recovery of the filter particles, argon follows the filter particles into the recovery chamber 4, so argon is also stored in the recovery chamber 4. When it is necessary to take out the recovered filter particles, the compression plug module 403 descends to squeeze the filter particles in the recovery pipe 401, and squeezes out the argon between the filter particles and the argon adsorbed inside the filter particles. The squeezed argon returns to the recovery chamber 4 through the return gas groove 404. At the same time, the cleaning hair 405 occupies the internal space of the return gas groove 404 and wipes the internal space of the return gas groove 404, effectively preventing the filter particle debris from clogging the return gas groove 404. Finally, the compression plug module 403 blocks the recovery pipe 401, effectively avoiding the leakage of argon when taking out the filter particle recovery cup 402, and avoiding the leakage of argon during the process of taking out the filter particle recovery cup 402.

[0045] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. Argon self-circulation system, characterized by: It comprises a cabinet (1) and a circulation pipeline (101) inside the cabinet (1), wherein a circulation pump (102), a filter box (103) and a filter storage tank (104) are connected in series on the path of the circulation pipeline (101), and a space piston module (2) is movably connected inside the filter storage tank (104); The top of the filter storage tank (104) is fixedly connected to an air intake end pipe (201), the middle of the space piston module (2) is fixedly connected to a particle filter pipe (202), a telescopic pipe (203) is fixedly connected between the top of the particle filter pipe (202) and the bottom of the air intake end pipe (201), the middle of the air intake end pipe (201) is fixedly connected to a particle storage tank (204), the bottom of the particle storage tank (204) is fixedly connected to a particle input pipe (205), and the bottom of the particle input pipe (205) is fixedly connected to the particle storage tank (204). An upper hole plug (206) is fixedly connected, the upper hole plug (206) is movably sleeved with the particle filter tube (202), a ventilation window (207) is provided at the connection portion between the particle filter tube (202) and the space piston module (2), a lower hole plug (208) is fixedly connected to the bottom of the particle filter tube (202), the lower hole plug (208) is located above the ventilation window (207), an extrusion port (209) is provided in the middle of the lower hole plug (208), and a pressure plug (210) is fixedly connected to the middle of the extrusion port (209).

2. The argon self-circulating system according to claim 1, characterized in that: The particle input pipe (205) is rotatably connected to a screw conveying shaft (211), and the bottom end of the screw conveying shaft (211) passes through the upper hole plug (206).

3. The argon self-circulating system according to claim 1, characterized in that: The telescopic tube (203) is made of a rubber bellows, the pressure plug (210) is arranged in a conical shape, and the pressure plug (210) is made of an elastic rubber material.

4. The argon self-circulating system according to claim 1, characterized in that: The input end of the air intake end pipe (201) is fixedly connected to a buffer tank (3), and the interior of the buffer tank (3) is movably connected to a buffer piston module (301).

5. The argon self-circulating system according to claim 1, characterized in that: The control ends of the buffer piston module (301) and the space piston module (2) are commonly connected to a system module, and the input end of the system module is connected to a flow detection unit, which is a flow sensor, and the flow detection unit is respectively installed at the input end and the output end of the circulation pipeline (101).

6. The argon self-circulating system according to claim 1, characterized in that: The system module comprises a space constant value module inside, and the space constant value module is used to input the telescopic movement value of the control space piston module (2) into the system module, and calculate the movement value of the buffer piston module (301) through the movement value input by the space constant value module and the gas volume fluctuation value of argon gas.

7. The argon self-circulating system according to claim 1, characterized in that: A recovery chamber (4) is provided inside the spatial piston module (2), and the recovery chamber (4) is communicated with the extrusion port (209).

8. The argon self-circulating system according to claim 1, characterized in that: The bottom of the recovery chamber (4) is annularly fixedly connected with a recovery pipe (401), and the bottom of the recovery pipe (401) is plugged with a particle recovery cup (402).

9. The argon self-circulating system according to claim 1, characterized in that: A compression plug module (403) is fixedly connected to the bottom of the recovery chamber (4), and the compression plug module (403) vertically corresponds to the recovery pipe (401).

10. The argon self-circulating system according to claim 1, characterized in that: The top inner wall of the recovery pipe (401) is provided with an air return groove (404), and a cleaning bristle (405) is fixedly connected to the middle of the compression plug module (403), and the cleaning bristle (405) corresponds to the air return groove (404).

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