Argon purification and recovery device

Abstract

The utility model provides an argon purification and recovery device which comprises a first filter box body, a gas inlet pipe arranged at the top of the first filter box body, a gas inlet valve arranged on the side wall of the gas inlet pipe, a first exhaust pipe arranged at the bottom of the first filter box body, a first exhaust valve arranged on the side wall of the first exhaust pipe, and a second filter box body arranged at the bottom of the first exhaust pipe, a second exhaust pipe is arranged at the bottom of the second filtering box body, and filtering assemblies which can be detached and are used for filtering impurities in argon are arranged in the first filtering box body and the second filtering box body; a backflow pipe used for conveying argon filtered by the first filtering box body into the second exhaust pipe is arranged between the side wall of the first filtering box body and the second exhaust pipe, a flow guide pipe is arranged between the air inlet pipe and the first exhaust pipe, one end of the flow guide pipe is arranged above the air inlet valve, and the other end of the flow guide pipe is arranged below the first exhaust valve. The device is reasonable in structure, convenient to clean and high in purification and recovery efficiency.

Description

Technical Field

[0001] The utility model relates to argon gas purification, in particular to an argon gas purification and recovery device. Background Art

[0002] Since argon is an inert gas with high density and low thermal conductivity, general cemented carbide manufacturers and manufacturers of high-quality precision ceramic products use high-purity argon for dewaxing (degumming), pressure sintering and cooling processes. As a protective gas, high-purity argon can greatly improve the output and quality of products. With the annual increase in low-pressure sintering furnaces, the demand for high-purity argon is also increasing. The amount of argon discharged is increasing, and more and more resources are wasted. When recovering argon, an argon purification and recovery device is needed.

[0003] In the prior art, the existing argon purification and recovery device is not convenient for cleaning the impurities filtered in the filter assembly when in use. When cleaning, the recovery and purification of the argon gas needs to be stopped, which affects the purification and recovery efficiency. Now there is an urgent need for an argon purification and recovery device to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an argon purification and recovery device to solve the problems raised in the above background technology. The utility model has a reasonable structure, convenient cleaning, and high purification and recovery efficiency.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: an argon gas purification and recovery device, comprising:

[0006] A first filter box, an air intake pipe is provided on the top of the first filter box, an air intake valve is provided on the side wall of the air intake pipe, a first exhaust pipe is provided on the bottom of the first filter box, a first exhaust valve is provided on the side wall of the first exhaust pipe, a second filter box is provided on the bottom of the first exhaust pipe, a second exhaust pipe is provided on the bottom of the second filter box, and a removable filter assembly for filtering impurities in the argon gas is provided inside the first filter box and the second filter box, a return pipe for sending the argon gas filtered by the first filter box to the inside of the second exhaust pipe is provided between the side wall of the first filter box and the second exhaust pipe, a guide pipe is provided between the air intake pipe and the first exhaust pipe, one end of the guide pipe is placed above the air intake valve and the other end is placed below the first exhaust valve, and a guide valve is provided on the side wall of the guide pipe.

[0007] Furthermore, a reflux valve is provided on the side wall of the reflux pipe, a second exhaust valve is provided on the side wall of the second exhaust pipe, and the second exhaust valve is placed between the reflux pipe and the second filter box.

[0008] Furthermore, a plurality of connecting columns are provided between the first filter box and the second filter box.

[0009] Furthermore, the side walls of the first filter box and the second filter box are both provided with sealing grooves, and the interiors of the first filter box and the second filter box are both provided with guide grooves connected to the sealing grooves;

[0010] The filter assembly includes a sealing plate arranged inside the sealing groove, a grid plate arranged inside the guide groove on one side of the sealing plate close to the sealing groove, a filter screen arranged inside the grid plate, and a sealing sleeve matching the guide groove on the side wall of the grid plate.

[0011] Furthermore, the sealing plate matches the sealing groove, and a force-applying handle is provided on the side wall of the sealing plate.

[0012] Furthermore, a filter cartridge is provided on the side wall of the second exhaust pipe, an air outlet pipe is provided at the bottom of the filter cartridge, a first partition net and a second partition net are provided in sequence from top to bottom inside the filter cartridge, a dehydrating agent is provided between the top of the first partition net and the upper side of the inner wall of the filter cartridge, a deoxidizer is provided between the bottom of the second partition net and the lower side of the inner wall of the filter cartridge, and a shielding net is provided at the connection between the second exhaust pipe and the air outlet pipe and the filter cartridge respectively.

[0013] Furthermore, threaded holes are provided on the top and bottom of the filter cartridge, external threads matching the threaded holes are provided on the lower side of the annular side of the second exhaust pipe and the upper side of the annular side of the outlet pipe, the shielding net is placed inside the threaded hole, and through holes are provided on the top and bottom of the filter cartridge for connecting the threaded hole with the interior of the filter cartridge. The inner diameter of the through hole is smaller than the inner diameter of the threaded hole, and the diameter of the shielding net is larger than the inner diameter of the through hole.

[0014] The argon gas is then filtered out of the second filter housing through the evaporation valve, and the filtered argon gas flows out of the second exhaust pipe. Then the filter assembly in the first filter housing is taken out to clean the impurities. Similarly, when the impurities filtered out of the filter assembly in the second filter housing need to be cleaned, the guide valve and the first exhaust valve are closed, the intake valve is opened, and the intake valve is opened. The gas passes through the intake pipe into the first filter housing in turn and is filtered by the filter assembly therein. Then, the gas flows through the reflux pipe and the second exhaust pipe to be discharged. Then, the filter assembly in the second filter housing is taken out to clean the impurities. This facilitates the cleaning of impurities without affecting the purification of the argon gas, thereby improving the argon gas purification and recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a three-dimensional diagram of an argon gas purification and recovery device according to one embodiment of the present utility model;

[0017] Figure 2 This is a front cross-sectional view of an argon gas purification and recovery device according to one embodiment of the present utility model;

[0018] Figure 3 According to an embodiment of the present invention Figure 2 A magnified view of middle A;

[0019] Figure 4 According to an embodiment of the present invention Figure 2 Enlarged view of middle B;

[0020] Figure 5 This is a perspective view of a filter assembly in an argon gas purification and recovery device according to one embodiment of the present invention;

[0021] In the figure: 1. first filter box; 101. sealing groove; 102. guide groove; 2. diversion valve; 3. filter assembly; 31. sealing plate; 311. force handle; 32. grid plate; 33. filter screen; 34. sealing sleeve; 4. diversion pipe; 5. air inlet pipe; 6. air inlet valve; 7. return pipe; 8. return valve; 9. connecting column; 10. second filter box; 11. first exhaust valve; 12. first exhaust pipe; 13. second exhaust valve; 14. second exhaust pipe; 15. filter cartridge; 16. air outlet pipe; 17. dehydrating agent; 18. first partition net; 19. second partition net; 20. deoxidizer; 21. shielding net; 22. through hole; 23. threaded hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown, the utility model provides a technical solution: an argon gas purification and recovery device, comprising:

[0024] The first filter box 1 is provided with an air inlet pipe 5 on the top of the first filter box 1, an air inlet valve 6 is provided on the side wall of the air inlet pipe 5, a first exhaust pipe 12 is provided at the bottom of the first filter box 1, a first exhaust valve 11 is provided on the side wall of the first exhaust pipe 12, a second filter box 10 is provided at the bottom of the first exhaust pipe 12, a second exhaust pipe 14 is provided at the bottom of the second filter box 10, and a filter assembly 3 that can be disassembled and used to filter impurities in the argon gas is provided inside the first filter box 1 and the second filter box 10. A return pipe 7 is provided between the side wall of the filter box 1 and the second exhaust pipe 14 for delivering the argon gas filtered by the first filter box 1 to the inside of the second exhaust pipe 14. A guide pipe 4 is provided between the intake pipe 5 and the first exhaust pipe 12. One end of the guide pipe 4 is placed above the intake valve 6 and the other end is placed below the first exhaust valve 11. A guide valve 2 is provided on the side wall of the guide pipe 4. When it is necessary to clean the impurities filtered by the filter assembly 3 inside the first filter box 1, the intake valve 6 and the first exhaust valve 11 are closed. , open the guide valve 2 and the second exhaust valve 13, the argon gas to be purified enters the second filter box 10 along the intake pipe 5, the guide pipe 4, and the first exhaust pipe 12 to filter the impurities, and the filtered argon gas flows out from the second exhaust pipe 14, and then the filter component 3 inside the first filter box 1 is taken out to clean the impurities, thereby facilitating the cleaning of impurities without affecting the purification of the argon gas, thereby improving the purification and recovery efficiency of the argon gas. Similarly, when it is necessary to clean the impurities filtered by the filter component 3 inside the second filter box 10, close the guide valve 2 and the first exhaust valve 11, open the intake valve 6, and the gas enters the first filter box 1 through the intake pipe 5 in turn, and is filtered by the filter component 3 inside it, and then flows through the reflux pipe 7 and the second exhaust pipe 14 to discharge the purified argon gas, and then the filter component 3 inside the second filter box 10 is taken out to clean the impurities, thereby facilitating the cleaning of impurities without affecting the purification of the argon gas, thereby improving the purification and recovery efficiency of the argon gas.

[0025] Reference Figure 1 and Figure 2 A reflux valve 8 is provided on the side wall of the reflux pipe 7, and a second exhaust valve 13 is provided on the side wall of the second exhaust pipe 14. The second exhaust valve 13 is placed between the reflux pipe 7 and the second filter box 10. This design avoids gas backflow by using the reflux valve 8 and the second exhaust valve 13. A plurality of connecting columns 9 are provided between the first filter box 1 and the second filter box 10. This design improves the stability of the connection by using the connecting columns 9.

[0026] Reference Figure 2 、 Figure 3 and Figure 5The side walls of the first filter box 1 and the second filter box 10 are both provided with a sealing groove 101, and the interiors of the first filter box 1 and the second filter box 10 are both provided with a guide groove 102 connected to the sealing groove 101;

[0027] The filter assembly 3 includes a sealing plate 31 arranged inside the sealing groove 101, and a grid plate 32 placed inside the guide groove 102 is provided on the side of the sealing plate 31 close to the sealing groove 101, and a filter screen 33 is provided inside the grid plate 32. The side wall of the grid plate 32 is provided with a sealing sleeve 34 that matches the guide groove 102. This design facilitates filtering impurities in the argon gas by using the filter screen 33 in the filter assembly 3, and improves the sealing performance of the connection by connecting the sealing plate 31 to the sealing groove 101 and the sealing sleeve 34 to the guide groove 102. At the same time, force can be applied to the sealing plate 31 to disengage the sealing plate 31 from the sealing groove 101, driving the grid plate 32 to drive the sealing sleeve 34 to disengage from the guide groove 102, thereby facilitating the removal of the filter screen 33 and cleaning the filtered impurities.

[0028] Reference Figure 5 The sealing plate 31 matches the sealing groove 101 , and a force-applying handle 311 is provided on the side wall of the sealing plate 31 . This design facilitates applying force to the sealing plate 31 by using the force-applying handle 311 .

[0029] Reference Figure 2 and Figure 4 A filter cartridge 15 is provided on the side wall of the second exhaust pipe 14, an air outlet pipe 16 is provided at the bottom of the filter cartridge 15, and a first partition screen 18 and a second partition screen 19 are provided in sequence inside the filter cartridge 15 from top to bottom. A dehydrating agent 17 is provided between the top of the first partition screen 18 and the upper side of the inner wall of the filter cartridge 15, and a deoxidizer 20 is provided between the bottom of the second partition screen 19 and the lower side of the inner wall of the filter cartridge 15. A shielding net 21 is provided at the connection between the second exhaust pipe 14 and the air outlet pipe 16 and the filter cartridge 15 respectively. This design facilitates the placement of the dehydrating agent 17 and the deoxidizer 20 by using the first partition screen 18, the second partition screen 19 and the shielding net 21 in the filter cartridge 15, thereby facilitating the dehydration and deoxidation of the argon gas, wherein the dehydrating agent 17 and the deoxidizer 20 are both existing technologies.

[0030] Reference Figure 4, threaded holes 23 are provided on the top and bottom of the filter cartridge 15, and external threads matching the threaded holes 23 are provided on the lower side of the annular side of the second exhaust pipe 14 and the upper side of the annular side of the outlet pipe 16. The shielding net 21 is placed inside the threaded hole 23, and a through hole 22 is provided on the top and bottom of the filter cartridge 15 for connecting the threaded hole 23 with the interior of the filter cartridge 15. The inner diameter of the through hole 22 is smaller than the inner diameter of the threaded hole 23, and the diameter of the shielding net 21 is larger than the inner diameter of the through hole 22. This design facilitates the separation of the filter cartridge 15 from the second exhaust pipe 14 and the outlet pipe 16 from the filter cartridge 15 by using threaded connection, thereby facilitating the outflow of the deoxidizer 20 and the dehydrator 17 from the through hole 22, facilitating the replacement of the deoxidizer 20 and the dehydrator 17, and improving the sealing of the connection. Handles can be provided on the side walls of the filter cartridge 15 and the outlet pipe 16 for easy force disassembly and assembly.

[0031] Reference Figure 1-Figure 5 As an embodiment of the present utility model: when it is necessary to purify impurities in argon gas, by closing the guide valve 2 and the reflux valve 8, and opening the air intake valve 6, the first exhaust valve 11, and the second exhaust valve 13, the argon gas enters the first filter box 1 through the air intake pipe 5 in turn, and filters the impurities through the first filter component 3, and then enters the second filter box 10 through the first exhaust pipe 12, and filters the impurities through the first filter component 3 at its temporal part, thereby improving the thoroughness of the filtration. The argon gas flows through the second exhaust pipe 14 into the filter cartridge 15, and passes through the deoxidizer for dehydration and the deoxidizer 20 for deoxygenation in turn, and is finally discharged from the air outlet pipe 16, thereby completing the purification of the argon gas.

[0032] When it is necessary to clean the impurities filtered by the filter assembly 3 inside the first filter box 1, close the air intake valve 6, the first exhaust valve 11 and the reflux valve 8, open the guide valve 2 and the second exhaust valve 13, and the argon gas to be purified enters the second filter box 10 along the air intake pipe 5, the guide pipe 4 and the first exhaust pipe 12 to filter the impurities, and the filtered argon gas flows out from the second exhaust pipe 14. Then, the force-applying handle 311 in the internal filter assembly 3 is applied to disengage the sealing plate 31 from the sealing groove 101, thereby driving the grid plate 32 to drive the sealing sleeve 34 from the guide groove 102, so as to facilitate the removal of the filter screen 33 to clean the filtered impurities, thereby facilitating the cleaning of impurities without affecting the purification of the argon gas, thereby improving the purification and reflux of the argon gas. Recovery efficiency. Similarly, when it is necessary to clean the impurities filtered by the filter component 3 inside the second filter box 10, close the guide valve 2, the first exhaust valve 11 and the second exhaust valve 13, open the intake valve 6 and the return valve 8, and the gas enters the first filter box 1 through the intake pipe 5 in turn and is filtered through the filter component 3 inside it, and then flows through the return pipe 7 and the second exhaust pipe 14 to discharge the purified argon gas, and then the force handle 311 in the internal filter component 3 is applied to make the sealing plate 31 disengage from the sealing groove 101, thereby driving the grid plate 32 to drive the sealing sleeve 34 to disengage from the guide groove 102, thereby facilitating the cleaning of impurities without affecting the purification of argon, thereby improving the purification and recovery efficiency of argon gas and improving the practicality of the present invention.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An argon gas purification and recovery device, characterized in that: include: A first filter box (1), an air intake pipe (5) is provided on the top of the first filter box (1), an air intake valve (6) is provided on the side wall of the air intake pipe (5), a first exhaust pipe (12) is provided on the bottom of the first filter box (1), a first exhaust valve (11) is provided on the side wall of the first exhaust pipe (12), a second filter box (10) is provided on the bottom of the first exhaust pipe (12), a second exhaust pipe (14) is provided on the bottom of the second filter box (10), and both the first filter box (1) and the second filter box (10) are provided with a removable and A filter assembly (3) for filtering impurities in argon gas, a return pipe (7) for sending the argon gas filtered by the first filter box (1) to the inside of the second exhaust pipe (14) is provided between the side wall of the first filter box (1) and the second exhaust pipe (14), a guide pipe (4) is provided between the intake pipe (5) and the first exhaust pipe (12), one end of the guide pipe (4) is placed above the intake valve (6) and the other end is placed below the first exhaust valve (11), and a guide valve (2) is provided on the side wall of the guide pipe (4).

2. The argon gas purification and recovery device according to claim 1, characterized in that: A return valve (8) is provided on the side wall of the return pipe (7), a second exhaust valve (13) is provided on the side wall of the second exhaust pipe (14), and the second exhaust valve (13) is placed between the return pipe (7) and the second filter box (10).

3. The argon gas purification and recovery device according to claim 1, characterized in that: A plurality of connecting columns (9) are provided between the first filter box (1) and the second filter box (10).

4. The argon gas purification and recovery device according to claim 1, characterized in that: The side walls of the first filter box (1) and the second filter box (10) are both provided with sealing grooves (101); the interiors of the first filter box (1) and the second filter box (10) are both provided with guide grooves (102) connected to the sealing grooves (101); The filter assembly (3) comprises a sealing plate (31) arranged inside the sealing groove (101); a grid plate (32) arranged inside the guide groove (102) is provided on one side of the sealing plate (31) close to the sealing groove (101); a filter screen (33) is provided inside the grid plate (32); and a sealing sleeve (34) matching the guide groove (102) is provided on the side wall of the grid plate (32).

5. The argon gas purification and recovery device according to claim 4, characterized in that: The sealing plate (31) matches the sealing groove (101), and a force-applying handle (311) is provided on the side wall of the sealing plate (31).

6. The argon gas purification and recovery device according to claim 1, characterized in that: A filter cartridge (15) is provided on the side wall of the second exhaust pipe (14), an air outlet pipe (16) is provided at the bottom of the filter cartridge (15), a first partition net (18) and a second partition net (19) are provided in sequence from top to bottom inside the filter cartridge (15), a dehydrating agent (17) is provided between the top of the first partition net (18) and the upper side of the inner wall of the filter cartridge (15), a deoxidizing agent (20) is provided between the bottom of the second partition net (19) and the lower side of the inner wall of the filter cartridge (15), and a shielding net (21) is provided at the connection between the second exhaust pipe (14) and the air outlet pipe (16) and the filter cartridge (15).

7. The argon gas purification and recovery device according to claim 6, characterized in that: The filter cartridge (15) is provided with threaded holes (23) at the top and bottom, and external threads matching the threaded holes (23) are provided at the lower side of the annular side of the second exhaust pipe (14) and the upper side of the annular side of the outlet pipe (16). The shielding net (21) is placed inside the threaded hole (23). The filter cartridge (15) is provided with through holes (22) at the top and bottom for connecting the threaded hole (23) with the inside of the filter cartridge (15). The inner diameter of the through hole (22) is smaller than the inner diameter of the threaded hole (23), and the diameter of the shielding net (21) is larger than the inner diameter of the through hole (22).

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