Filter assembly for laboratory gas purification treatment

Abstract

The utility model discloses a filter assembly for laboratory gas purification treatment, which comprises a box body, the top, the middle and the bottom of the front surface of the box body are respectively provided with a socket, the inner walls of the three sockets are respectively inserted with a screen frame, the inner walls of the three screen frames are respectively and fixedly connected with a coarse particle filter screen, an HEPA filter screen and an activated carbon filter screen from bottom to top, and the coarse particle filter screen, the HEPA filter screen and the activated carbon filter screen are arranged in the box body. Mounting seats are fixedly embedded in the positions, corresponding to the screen frames, of the two sides of the box body, one side of the inner wall of each mounting seat is provided with a threaded hole, the inner wall of each threaded hole is in threaded connection with a threaded rod, one end of each threaded rod is rotationally connected with a locking strip through a bearing, and the two sides of each screen frame are provided with locking grooves. The three-stage filter screen is arranged, the filtering effect on laboratory gas is good, the blocking pressure of a single filter screen is dispersed, the filter screens can be washed to achieve the dredging effect, the maintenance frequency of the filter assembly is reduced, and the filter screens are fast to disassemble and assemble and convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of filter components, in particular to a filter component for laboratory gas purification processing. Background Art

[0002] Laboratory gas purification is the process of ensuring that the quality of gases in a laboratory environment meets specific standards and experimental requirements.

[0003] However, the existing gas purification filter components have the following disadvantages:

[0004] (1) The existing gas purification filters are prone to clogging after long-term use, which affects the filtering effect and requires frequent disassembly and maintenance, delaying the experimental process;

[0005] (2) The filter in the existing laboratory gas filter assembly is inconvenient to disassemble and assemble, which is not conducive to removing the filter for cleaning. Utility Model Content

[0006] The purpose of the utility model is to provide a filter assembly for laboratory gas purification treatment to solve the problem that the existing filter screen for gas purification treatment proposed in the above background technology is prone to clogging after long-term use, affecting the filtering effect, requiring frequent disassembly and maintenance, delaying the experimental progress, and the filter screen in the laboratory gas filter assembly is inconvenient to disassemble and assemble, which is not conducive to removing the filter screen for cleaning.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter component for laboratory gas purification treatment, comprising a box body, the top, middle and bottom of the front side of the box body are all provided with sockets, the inner walls of the three sockets are interspersed with mesh frames, the inner walls of the three mesh frames are respectively fixedly connected with coarse particle filter, HEPA filter and activated carbon filter from bottom to top, mounting seats are fixedly embedded at the corresponding mesh frames on both sides of the box body, one side of the inner wall of the mounting seat is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected with a threaded rod, one end of the threaded rod is rotatably connected with a locking strip through a bearing, locking grooves are provided on both sides of the mesh frame, the bottom end of the box body is fixedly connected with a water storage shell, the top end of the inner wall of the box body is fixedly connected with an annular tube, and the bottom end of the annular tube is fixedly connected with a plurality of flushing heads.

[0008] When a filter assembly for laboratory gas purification treatment according to the technical solution is used, a three-stage filter screen is provided, which has a good filtering effect on laboratory gas, disperses the clogging pressure of a single filter screen, and can be flushed to play a role in clearing, thereby reducing the maintenance frequency of the filter assembly. The filter screen is also quick to disassemble and install, and is convenient to clean.

[0009] As a preferred technical solution of the utility model, the bottom of the box is fixedly connected with an air inlet pipe, and the top of the box is fixedly connected with an air outlet pipe. The air inlet pipe and the air outlet pipe are respectively used for inputting experimental gas and discharging purified gas.

[0010] As a preferred technical solution of the utility model, a water pump is fixedly installed at the bottom of the back of the water storage shell, the output end of the water pump is fixedly connected to a water delivery pipe, and the top end of the water delivery pipe passes through the inner wall of the box body and is fixedly connected to the annular pipe. The water pump can deliver the extracted water to the annular pipe by means of the water delivery pipe.

[0011] As a preferred technical solution of the utility model, a retaining net is engaged with the input end of the water pump, and the input end of the water pump is connected to the inside of the water storage shell. The retaining net is provided to prevent particles from being sucked into the water pump and causing clogging of the flushing head.

[0012] As a preferred technical solution of the utility model, the locking strip is slidably connected to the inner wall of the mounting seat, and the locking strip is engaged with the inner wall of the locking groove. The locking strip can slide on the inner wall of the mounting seat and cannot be rotated.

[0013] As a preferred technical solution of the utility model, a knob is fixedly connected to one end of the threaded rod away from the bearing. The knob is provided to facilitate the rotation of the threaded rod.

[0014] As a preferred technical solution of the utility model, the bottom end of the water storage shell is fixedly connected with a drain flange, the bottom end of the drain flange is fixedly installed with a flange cover by bolts, and the bottom end of the flange cover is fixedly connected with a handle. The filtered dirt in the water storage shell can be discharged by opening the flange cover.

[0015] As a preferred technical solution of the utility model, a handle is fixedly connected to the front of the mesh frame, so as to facilitate the mesh frame to be pulled out.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The three-stage filter screens, i.e., coarse particle filter, HEPA filter and activated carbon filter, are provided to achieve good filtering effect on laboratory gas and disperse the clogging pressure of a single filter screen. The water pump can be started to deliver water to several flushing heads for spraying, and the impurities filtered on the filter surface can be flushed into the water pool below, which plays a role in dredging and preventing blockage, and reduces the maintenance frequency of the filter components.

[0018] 2. By rotating the knobs on the mounting seats on both sides, the threaded rod can be driven to rotate, and the locking strip can be driven to move horizontally with the cooperation of the bearing. Then, by moving the locking strips on both sides to disengage them from the locking grooves on the screen frame, the screen frame can be pulled out by pulling the handle, which is convenient and quick, and is conducive to cleaning the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective view of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 It is a cross-sectional view of the mounting seat of the utility model;

[0022] Figure 4 It is a bottom sectional view of the utility model;

[0023] Figure 5 It is a rear perspective view of the present invention.

[0024] In the figure: 1. Box body; 2. Air inlet pipe; 3. Air outlet pipe; 4. Socket; 5. Frame; 6. Coarse particle filter; 7. HEPA filter; 8. Activated carbon filter; 9. Mounting seat; 10. Threaded hole; 11. Threaded rod; 12. Locking strip; 13. Locking groove; 14. Knob; 15. Handle; 16. Water storage shell; 17. Water pump; 18. Water pipe; 19. Ring pipe; 20. Flushing head; 21. Screen; 22. Drain flange; 23. Flange cover; 24. Handle; 25. Bearing. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a filter assembly for laboratory gas purification treatment, including a box body 1, a socket 4 is provided at the top, the middle and the bottom of the front of the box body 1, and the inner walls of the three sockets 4 are interspersed with mesh frames 5. The inner walls of the three mesh frames 5 are respectively fixedly connected with coarse particle filter screens 6, HEPA filter screens 7 and activated carbon filter screens 8 from bottom to top for filtering laboratory gas, and mounting seats 9 are fixedly embedded at the corresponding mesh frames 5 on both sides of the box body 1, and a threaded hole 10 is provided on one side of the inner wall of the mounting seat 9, and a threaded rod 11 is threadedly connected to the inner wall of the threaded hole 10, and a locking strip 12 is rotatably connected to one end of the threaded rod 11 through a bearing 25, and locking grooves 13 are provided on both sides of the mesh frame 5 for limiting the mesh frame 5, and a water storage shell 16 is fixedly connected to the bottom end of the box body 1, and an annular pipe 19 is fixedly connected to the top of the inner wall of the box body 1, and a plurality of flushing heads 20 are fixedly connected to the bottom end of the annular pipe 19 for flushing the filter screen.

[0027] When in use, the coarse particle filter 6 filters the large particle impurities in the laboratory gas, and then the HEPA filter 7 filters the tiny particles in the gas, and finally the activated carbon filter 8 removes organic gas and odor. Thus, the three-stage filter is set to have a good filtering effect on the laboratory gas and disperse the clogging pressure of a single filter.

[0028] The bottom of the box body 1 is fixedly connected with an air inlet pipe 2, and the top of the box body 1 is fixedly connected with an air outlet pipe 3 for the circulation of laboratory gas. A water pump 17 is fixedly installed at the bottom of the back of the water storage shell 16, and the output end of the water pump 17 is fixedly connected with a water delivery pipe 18, and the top of the water delivery pipe 18 passes through the inner wall of the box body 1 and is fixedly connected with the annular pipe 19. The input end of the water pump 17 is engaged with a retaining net 21 to filter dirt, and the input end of the water pump 17 is connected with the inside of the water storage shell 16. The bottom end of the water storage shell 16 is fixedly connected with a sewage flange 22, and the bottom end of the sewage flange 22 is fixedly installed with a flange cover 23 by bolts to play a blocking role. The bottom end of the flange cover 23 is fixedly connected with a handle 24 to facilitate the movement of the flange cover 23;

[0029] When in use, the laboratory gas is input into the box body 1 from the air inlet pipe 2, and discharged from the air outlet pipe 3 after filtering and purification. The water pump 17 can be started to pump out the water in the water storage shell 16, and the water is transported along the water delivery pipe 18 to the several flushing heads 20 below the annular pipe 19 for spraying, so that the impurities filtered on the surface of the filter can be flushed into the water pool below, and a retaining net 21 is set at the input end of the water pump 17 to prevent the inhalation of dirt and blockage of the flushing head 20. After the work is finished, the flange cover 23 can be removed by holding the handle 24, and the dirt in the water storage shell 16 can be discharged from the sewage flange 22;

[0030] The locking strip 12 is slidably connected to the inner wall of the mounting seat 9 to play a guiding role, and the locking strip 12 is engaged with the inner wall of the locking groove 13 to play a locking role. The end of the threaded rod 11 away from the bearing 25 is fixedly connected to a knob 14 for easy rotation. The front of the net frame 5 is fixedly connected to a handle 15 for easy pulling.

[0031] When in use, the threaded rod 11 is driven to rotate by rotating the knobs 14 on the mounting seats 9 on both sides, and the locking strip 12 can be driven to move horizontally with the cooperation of the bearing 25, and then the locking strips 12 on both sides are moved to disengage from the locking grooves 13 on the screen frame 5, and the handle 15 can be pulled to pull out the screen frame 5 to clean the filter.

[0032] When used specifically, the utility model is a filter assembly for laboratory gas purification treatment. The laboratory gas is input into the box body 1 from the air inlet pipe 2, the coarse particle filter 6 filters the large particle impurities in the gas, and then the HEPA filter 7 filters the tiny particles in the gas. Finally, the activated carbon filter 8 removes organic gas and odor. Thus, the three-stage filter is set to have a good filtering effect on the laboratory gas, and the clogging pressure of a single filter is dispersed. The purified gas is discharged from the air outlet pipe 3, and the water pump 17 can be started to pump the water in the water storage shell 16 The impurities filtered on the surface of the filter screen can be flushed into the water pool below, which plays a role in dredging and preventing blockage, and reduces the maintenance frequency of the filter assembly. The threaded rod 11 can be driven to rotate by rotating the knobs 14 on the mounting seats 9 on both sides, and the locking strip 12 can be driven to move horizontally with the cooperation of the bearing 25, and then the locking strips 12 on both sides are moved to disengage from the locking grooves 13 on the screen frame 5, and the handle 15 can be pulled to pull out the screen frame 5, which is convenient and quick, and is conducive to cleaning the filter screen.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter assembly for laboratory gas purification, comprising a housing (1), characterized in that: The top, middle and bottom of the front of the box body (1) are provided with sockets (4); the inner walls of the three sockets (4) are interspersed with mesh frames (5); the inner walls of the three mesh frames (5) are respectively fixedly connected with a coarse particle filter (6), a HEPA filter (7) and an activated carbon filter (8) from bottom to top; mounting seats (9) are fixedly embedded at the positions corresponding to the mesh frames (5) on both sides of the box body (1); a threaded hole (10) is provided on one side of the inner wall of the mounting seat (9). 0), the inner wall of the threaded hole (10) is threadedly connected to a threaded rod (11), one end of the threaded rod (11) is rotatably connected to a locking strip (12) via a bearing (25), locking grooves (13) are provided on both sides of the net frame (5), the bottom end of the box body (1) is fixedly connected to a water storage shell (16), the top end of the inner wall of the box body (1) is fixedly connected to an annular tube (19), and the bottom end of the annular tube (19) is fixedly connected to a plurality of flushing heads (20).

2. A filter assembly for laboratory gas purification according to claim 1, characterized in that: The bottom of the box body (1) is fixedly connected to an air inlet pipe (2), and the top of the box body (1) is fixedly connected to an air outlet pipe (3).

3. The filter assembly for laboratory gas purification according to claim 1, characterized in that: A water pump (17) is fixedly mounted on the bottom of the back side of the water storage shell (16); the output end of the water pump (17) is fixedly connected to a water delivery pipe (18); and the top end of the water delivery pipe (18) passes through the inner wall of the box body (1) and is fixedly connected to the annular pipe (19).

4. A filter assembly for laboratory gas purification according to claim 3, characterized in that: The input end of the water pump (17) is engaged with a blocking net (21), and the input end of the water pump (17) is in communication with the interior of the water storage shell (16).

5. The filter assembly for laboratory gas purification according to claim 1, characterized in that: The locking strip (12) is slidably connected to the inner wall of the mounting seat (9), and the locking strip (12) is engaged with the inner wall of the locking groove (13).

6. The filter assembly for laboratory gas purification according to claim 1, characterized in that: One end of the threaded rod (11) away from the bearing (25) is fixedly connected to a knob (14).

7. The filter assembly for laboratory gas purification according to claim 1, characterized in that: The bottom end of the water storage shell (16) is fixedly connected to a drain flange (22), the bottom end of the drain flange (22) is fixedly mounted with a flange cover (23) by means of bolts, and the bottom end of the flange cover (23) is fixedly connected to a handle (24).

8. The filter assembly for laboratory gas purification according to claim 1, characterized in that: A handle (15) is fixedly connected to the front side of the mesh frame (5).

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