Multi-group parallel gas permeation device

Abstract

The utility model discloses a multi-group parallel gas permeation device, which comprises a support assembly, a storage assembly, a gas transmission assembly and a pressure relief assembly, the support assembly comprises a test board and a support frame arranged at the top of the test board, and the storage assembly comprises a storage cylinder arranged on the test board. The gas conveying assembly comprises a hydraulic cylinder arranged on the supporting frame, a transverse pipe arranged at the bottom of the hydraulic cylinder, a branch pipe arranged at the bottom of the transverse pipe, a flow adjusting valve arranged on the branch pipe and a top cover arranged at the bottom of the branch pipe. The pressure relief assembly comprises a pressure relief cylinder in threaded connection with the two sides of the transverse pipe, a spring arranged on the inner wall of the pressure relief cylinder, a piston arranged on the spring and a pressure relief hole formed in the pressure relief cylinder. The spring enables the piston to have a certain buffering effect, the piston can be pushed to move inwards when air pressure is too large, pressure can be relieved through the pressure relief hole after the piston moves to a proper position, and potential safety hazards caused by too large air pressure are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas permeation experimental devices, in particular to a multi-group parallel gas permeation device. Background Art

[0002] A multi-group parallel gas permeation device is an experimental device used to study the permeation behavior of gas in porous media. It consists of multiple parallel gas permeation units, each unit has an independent gas inlet and outlet and control system, and can perform gas permeation tests on multiple samples at the same time. Multiple groups of parallel gas permeation devices have a wide range of applications in geological engineering, environmental science, materials science and other fields. When in use, multiple parallel gas permeation units need to transport gas, and a flow regulating valve is required to adjust the flow rate of the intake of each gas permeation unit to achieve a consistent flow rate. However, in order to ensure that the intake flow rate of each gas permeation unit is consistent, there will be excess gas left in the tube. Reserving too much will cause the internal air pressure to increase, and there are certain safety hazards. Therefore, we propose a multi-group parallel gas permeation device. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art or related technologies.

[0004] To this end, the technical solution adopted by the utility model is: a multi-group parallel gas permeation device, including a support component, a storage component, a gas transmission component and a pressure relief component, the support component includes a test bench and a support frame arranged on the top of the test bench, the storage component includes a storage cylinder arranged on the test bench, the gas transmission component includes a hydraulic cylinder arranged on the support frame, a cross pipe arranged at the bottom of the hydraulic cylinder, a branch pipe arranged at the bottom of the cross pipe, a flow regulating valve arranged on the branch pipe and a top cover arranged at the bottom of the branch pipe, the pressure relief component includes a pressure relief cylinder threadedly connected to both sides of the cross pipe, a spring arranged on the inner wall of the pressure relief cylinder, a piston arranged on the spring and a pressure relief hole opened on the pressure relief cylinder.

[0005] Preferably, a support plate is provided at the bottom of the test bench.

[0006] Preferably, the storage assembly further comprises a sealing ring clamped on the top of the storage tube, an exhaust pipe arranged at the rear side of the storage tube, and a flow meter arranged on the exhaust pipe.

[0007] Preferably, it further comprises an ejection assembly, wherein the ejection assembly comprises a fixing plate arranged at the bottom of the test bench, an electric push rod arranged on the fixing plate, and an ejector rod arranged at the top of the electric push rod.

[0008] Preferably, a connecting pipe is provided on the top of the transverse pipe, and the connecting pipe is fixedly connected to the gas conveying device.

[0009] Preferably, the two pressure relief holes are symmetrically distributed on the pressure relief cylinder, and the pressure relief holes are rectangular holes.

[0010] By adopting the above technical scheme, the beneficial effects achieved by the utility model are as follows: the pressure relief cylinder of the pressure relief assembly provided in the utility model can be fixed on the cross tube by means of threaded connection, so as to replace the pressure relief assembly. When in use, the piston has a certain buffering effect through the spring. When the air pressure is too high, the piston will be pushed to move inward. After moving to a suitable position, the pressure can be relieved through the pressure relief hole, thus avoiding the safety hazard caused by the excessive air pressure. Then, the electric push rod of the ejection assembly provided can drive the ejector rod to move upward, and the moving ejector rod can eject the object to be measured in the storage tube for taking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the storage assembly of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the storage tube of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the ejection assembly of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the pressure relief component of the utility model.

[0016] Reference numerals:

[0017] 100, support assembly; 101, test bench; 102, support frame; 103, support plate;

[0018] 200, storage assembly; 201, storage tube; 202, sealing ring; 203, exhaust pipe; 204, flow meter;

[0019] 300, ejector assembly; 301, fixing plate; 302, electric push rod; 303, ejector rod;

[0020] 400, gas transmission assembly; 401, hydraulic cylinder; 402, cross pipe; 403, connecting pipe; 404, branch pipe; 405, flow regulating valve; 406, top cover;

[0021] 500, pressure relief assembly; 501, pressure relief cylinder; 502, spring; 503, piston; 504, pressure relief hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] Some embodiments of the utility model are described below in conjunction with the accompanying drawings to provide a plurality of parallel gas permeation devices.

[0024] Embodiment 1:

[0025] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a plurality of parallel gas permeation devices, including a support assembly 100, a storage assembly 200, a gas transmission assembly 400 and a pressure relief assembly 500.

[0026] Specifically, the support assembly 100 includes a test bench 101 and a support frame 102 arranged on the top of the test bench 101. The support frame 102 is used to fix the gas transmission assembly 400. A support plate 103 is arranged at the bottom of the test bench 101. The support plate 103 is U-shaped to facilitate supporting the test bench 101.

[0027] Specifically, the storage component 200 includes a storage tube 201 set on the test bench 101, and the test object can be placed in the storage tube 201. The storage component 200 also includes a sealing ring 202 clamped on the top of the storage tube 201, an exhaust pipe 203 set on the rear side of the storage tube 201, and a flow meter 204 set on the exhaust pipe 203. The sealing ring 202 can abut against the gas transmission component 400 to improve the sealing performance and avoid the problem of inaccurate test results caused by leakage. Then, gas can be transported through the exhaust pipe 203, and the flow meter 204 can detect the flow rate of the gas transported by the exhaust pipe 203.

[0028] Specifically, the gas delivery assembly 400 includes a hydraulic cylinder 401 arranged on the support frame 102, a transverse pipe 402 arranged at the bottom of the hydraulic cylinder 401, a branch pipe 404 arranged at the bottom of the transverse pipe 402, a flow regulating valve 405 arranged on the branch pipe 404 and a top cover 406 arranged at the bottom of the branch pipe 404. The flow regulating valve 405 can detect the flow of the branch pipe 404 and can control the flow. A connecting pipe 403 is arranged on the top of the transverse pipe 402. The connecting pipe 403 is fixedly connected to the gas delivery device. The gas delivery device can deliver the gas to the transverse pipe 402 through the connecting pipe 403, and then deliver the gas to the branch pipe 404 from the transverse pipe 402, so as to deliver the gas to the storage cylinder 201.

[0029] Specifically, the pressure relief assembly 500 includes a pressure relief cylinder 501 threadedly connected to both sides of the cross tube 402, a spring 502 arranged on the inner wall of the pressure relief cylinder 501, a piston 503 arranged on the spring 502, and a pressure relief hole 504 opened on the pressure relief cylinder 501. The two pressure relief holes 504 are symmetrically distributed on the pressure relief cylinder 501. The pressure relief holes 504 are rectangular holes. The spring 502 allows the piston 503 to have a certain buffering effect. When the gas inside the cross tube 402 is large, the piston 503 will be pushed to move inward. After moving to a suitable position, the pressure can be relieved through the pressure relief holes 504 to avoid safety hazards caused by excessive air pressure.

[0030] Embodiment 2:

[0031] Reference Figure 1 and Figure 4 , which is the second embodiment of the utility model, which is different from the first embodiment in that it also includes an ejection assembly 300, the ejection assembly 300 includes a fixed plate 301 arranged at the bottom of the test bench 101, an electric push rod 302 arranged on the fixed plate 301 and a push rod 303 arranged on the top of the electric push rod 302, the electric push rod 302 can be controlled to be extended and retracted, the retracted electric push rod 302 can drive the push rod 303 to move upward, and the movable push rod 303 can eject the test object in the storage tube 201 for removal.

[0032] The working principle and use process of the utility model are as follows: when in use, the object to be measured can be placed in the storage cylinder 201. After being placed, the hydraulic cylinder 401 is controlled to drive the top cover 406 to move downward until the top cover 406 contacts the top of the storage cylinder 201. Then the gas delivery device delivers the gas to the transverse pipe 402 through the connecting pipe 403, and then delivers the gas to the storage cylinder 201 through the transverse pipe 402 and the branch pipe 404, and then the gas penetrates the object to be measured and is discharged through the exhaust pipe 203. During the gas delivery process, the flow regulating valve 405 can detect the flow of the gas and control the flow. When the transverse pipe 403 is in contact with the top of the storage cylinder 201, the gas is delivered to the storage cylinder 201 through the connecting pipe 403. When the gas inside 402 is large, it will push the piston 503 of the pressure relief assembly 500 to move inward. After moving to a suitable position, the pressure can be released through the pressure relief hole 504 to avoid safety hazards caused by excessive air pressure. After the gas is transmitted, the flow rate of the flow regulating valve 405 and the flow meter 204 are compared to obtain the gas permeability performance of the object to be tested. Finally, the electric push rod 302 of the ejection assembly 300 can be controlled to retract. The retracted electric push rod 302 can drive the ejector rod 303 to move upward, and the moving ejector rod 303 can eject the test object in the storage tube 201 for removal.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plurality of parallel gas permeation devices, characterized in that: include: A support assembly (100) comprises a test bench (101) and a support frame (102) arranged on the top of the test bench (101); A storage assembly (200), comprising a storage tube (201) arranged on the test bench (101); A gas delivery assembly (400) comprises a hydraulic cylinder (401) arranged on the support frame (102), a transverse pipe (402) arranged at the bottom of the hydraulic cylinder (401), a branch pipe (404) arranged at the bottom of the transverse pipe (402), a flow regulating valve (405) arranged on the branch pipe (404), and a top cover (406) arranged at the bottom of the branch pipe (404); The pressure relief assembly (500) comprises a pressure relief cylinder (501) threadedly connected to both sides of a transverse tube (402), a spring (502) arranged on the inner wall of the pressure relief cylinder (501), a piston (503) arranged on the spring (502), and a pressure relief hole (504) opened on the pressure relief cylinder (501).

2. A multi-group parallel gas permeation device according to claim 1, characterized in that: A support plate (103) is provided at the bottom of the test bench (101).

3. A multi-group parallel gas permeation device according to claim 1, characterized in that: The storage assembly (200) further comprises a sealing ring (202) clamped on the top of the storage tube (201), an exhaust pipe (203) arranged at the rear side of the storage tube (201), and a flow meter (204) arranged on the exhaust pipe (203).

4. A multi-group parallel gas permeation device according to claim 1, characterized in that: The invention also comprises an ejection assembly (300), wherein the ejection assembly (300) comprises a fixing plate (301) arranged at the bottom of the test bench (101), an electric push rod (302) arranged on the fixing plate (301), and an ejector rod (303) arranged at the top of the electric push rod (302).

5. A multi-group parallel gas permeation device according to claim 1, characterized in that: A connecting pipe (403) is provided on the top of the transverse pipe (402), and the connecting pipe (403) is fixedly connected to the gas conveying device.

6. A multi-group parallel gas permeation device according to claim 1, characterized in that: The two pressure relief holes (504) are symmetrically distributed on the pressure relief cylinder (501), and the pressure relief holes (504) are rectangular holes.

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