Movable gas storage experiment equipment

Abstract

Movable gas storage experimental equipment comprises a buffer tank used for storing gas to be tested, a purging passage, a vacuumizing passage, a gas taking passage and a bagging passage, the purging passage comprises a gas inlet passage and a gas outlet passage, one end of the gas inlet passage is communicated with the buffer tank, and the other end of the gas inlet passage is communicated with an external gas cylinder; one end of the air outlet passage is communicated with the buffer tank; the vacuumizing channel comprises a sucking pump assembly and a control valve, one end of the vacuumizing channel communicates with the buffer tank, and the other end of the vacuumizing channel communicates with the outside; one end of the gas taking channel is used for sucking to-be-detected gas, and the other end is communicated with the buffer tank; one end of the bagging passage is communicated with the sampling bag, and the other end is communicated with the buffer tank. According to the invention, experiment gas storage and gas taking are more convenient, and control is more convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas storage equipment, and specifically relates to a mobile gas storage experimental device. Background Technology

[0002] With the deepening of scientific research and the diversified needs of industrial production, the convenience and efficiency of gas storage, as an important experimental and production material, have become a focus of attention in related industries. Traditional fixed gas storage equipment has many inconveniences in terms of installation, use, and maintenance, especially in environments such as laboratories where flexible adjustments and frequent access are required, and its limitations are becoming increasingly apparent.

[0003] Fixed gas storage equipment typically requires complex installation procedures and is also cumbersome to maintain and repair, requiring professional personnel to operate, which increases the cost of use. In addition, traditional gas storage equipment is large in size and requires a lot of space, which is a major challenge for laboratories or production sites with limited space. Furthermore, many traditional gas storage equipment lack effective pressure regulation and flow control functions, making it difficult to meet the requirements for precise control of gas pressure and flow in different experimental or production processes. Utility Model Content

[0004] This invention provides a mobile gas storage experimental device to address the shortcomings of gas storage devices mentioned in the background art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A mobile gas storage experimental device, comprising:

[0007] Buffer tank, used to store the gas to be tested;

[0008] The purging passage includes an air inlet passage and an air outlet passage. One end of the air inlet passage is connected to the buffer tank, and the other end is connected to an external gas cylinder. One end of the air outlet passage is connected to the buffer tank, and the other end is connected to the outside.

[0009] The vacuum passage includes a vacuum pump assembly and a control valve. One end of the vacuum passage is connected to the buffer tank, and the other end is connected to the outside.

[0010] The gas intake passage has one end for drawing in the gas to be tested, and the other end is connected to the buffer tank.

[0011] The bagging passage connects to the sampling bag at one end and to the buffer tank at the other end.

[0012] Furthermore, it also includes a movable frame, which includes a first mounting frame for fixing the buffer tank, a second mounting frame for arranging and fixing the rinsing passage, the gas intake passage and the bagging passage, and a third mounting frame for placing the vacuuming passage.

[0013] Furthermore, a first pressure gauge, a pressure reducing valve, and a second pressure gauge are sequentially installed on the air intake passage;

[0014] The air intake passage is also provided with an on / off valve assembly, which includes one or more of a ball valve, a solenoid valve, and a safety valve. The on / off valve assembly is partially located between the first pressure gauge and the pressure reducing valve, and partially located between the second pressure gauge and the buffer tank.

[0015] Furthermore, a first solenoid valve is provided on the air outlet passage.

[0016] Furthermore, a pressure relief pipe is provided between the air intake passage and the air outlet passage, and a first ball valve is provided on the pressure relief pipe.

[0017] Furthermore, the vacuum pump assembly includes a vortex pump, a molecular pump, and a vacuum gauge arranged in sequence, with the control valves respectively located between the molecular pump and the vortex pump, and between the vacuum gauge and the buffer tank.

[0018] Furthermore, a second solenoid valve, a filter, and a first quick connector are sequentially arranged on the gas intake passage in the direction away from the buffer tank.

[0019] Furthermore, a third solenoid valve, a ball valve, and a second quick connector are sequentially arranged on the bagging passage in the direction away from the buffer tank.

[0020] Furthermore, a fourth solenoid valve and a third pressure gauge are directly connected to the buffer tank.

[0021] The present invention can achieve the following beneficial effects:

[0022] 1. This application introduces inert gas into the buffer tank through a purging passage to purify the buffer tank and ensure the storage environment of the gas to be tested; the vacuum passage enables a pressure difference between the buffer tank and the external air pressure, which facilitates the entry of the gas to be tested into the buffer tank through the gas sampling passage, thus achieving the storage of the gas to be tested; when the gas to be tested is needed, the gas to be tested can be discharged and collected into a sampling bag through the bagging passage. The experimental equipment of this application forms a storage and retrieval passage for the gas to be tested and can ensure the gas storage environment, thereby making the gas sampling and storage in the laboratory more convenient and flexible.

[0023] 2. This application sets a first pressure gauge and a second pressure gauge on the air intake passage, and directly connects a third pressure gauge to the buffer tank, which can monitor the pressure of the gas entering the buffer tank in real time, and reduce the pressure through a multi-stage pressure reducing valve, thereby accurately controlling the gas pressure in the buffer tank.

[0024] 3. The vacuum pump assembly includes a vortex pump and a molecular pump, which enables multi-stage vacuuming of the buffer tank, thereby achieving fine adjustment of the pressure inside the buffer tank.

[0025] 4. Setting up opening and closing valve groups and pressure relief pipelines can achieve multiple protection and control of the entire passage, so as to reduce the impact of damage to some parts on the normal operation of the entire passage. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the circuit design principle of a mobile gas storage experimental device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of a mobile gas storage experimental device according to the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Buffer tank; 11. Fourth solenoid valve; 12. Third pressure gauge; 2. Inlet passage; 21. First pressure gauge; 22. Pressure reducing valve; 23. Second pressure gauge; 24. Ball valve A; 25. Solenoid valve A; 26. Safety valve A; 27. Needle valve A; 28. Solenoid valve B; 3. Outlet passage; 31. First solenoid valve; 4. Vacuum passage; 41. Vortex pump; 42. Molecular pump; 43. Vacuum gauge; 44. Angle valve A; 45. Angle valve B 5. Gas intake passage; 51. Second solenoid valve; 52. Filter; 53. First quick connector; 6. Bag filling passage; 61. Third solenoid valve; 62. First needle valve; 63. Second quick connector; 7. Pressure relief line; 71. First ball valve; 8. Movable frame; 81. First mounting frame; 82. Second mounting frame; 83. Third mounting frame; 100. Sampling bag; 200. Connecting suction gun; 300. External gas cylinder; 400. External pressure reducing valve. Detailed Implementation

[0031] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0032] like Figure 1 and Figure 2 As shown, a mobile gas storage experimental device includes a buffer tank 1, a purging passage, a vacuum passage 4, a gas intake passage 5, and a bagging passage 6. The buffer tank 1 is used to store the gas to be tested; the purging passage includes an inlet passage 2 and an outlet passage 3, with one end of the inlet passage 2 connected to the buffer tank 1 and the other end connected to an external gas cylinder 300; one end of the outlet passage 3 is connected to the buffer tank 1 and the other end is connected to the outside; one end of the vacuum passage 4 is connected to the buffer tank 1 and the other end is connected to the outside; one end of the gas intake passage 5 is used to draw the gas to be tested, and the other end is connected to the buffer tank 1. In this embodiment, one end of the gas intake passage 5 is connected to the suction gun 200 of the gas supply device for the gas to be tested. In other embodiments, the gas to be tested can also be introduced into the buffer tank 1 through the gas intake passage 5 in other ways; one end of the bagging passage 6 is connected to a sampling bag 100 and the other end is connected to the buffer tank 1.

[0033] When using the gas storage experimental equipment of this application, inert gas is first introduced into the entire passage and buffer tank 1 through the inlet passage 2 and the outlet passage 3 to discharge the residual gas inside the equipment and avoid affecting the gas experimental environment; then, the gas in the buffer tank 1 is extracted to form a negative pressure through the vacuum passage 4, and the gas to be tested is sucked into the buffer tank 1 through the gas sampling passage 5 to realize the storage of the gas to be tested; when the gas to be tested needs to be used, inert gas is introduced into the buffer tank 1 through the inlet passage 2, and the gas to be tested is discharged through the bagging passage 6 and put into the sampling bag 100 to realize the use of the gas to be tested.

[0034] This application discloses a mobile gas storage experimental device, including a mobile frame 8. The mobile frame 8 includes a first mounting frame 81 for mounting a buffer tank 1, a second mounting frame 82 for arranging and fixing the purging passage, the gas intake passage 5, and the bagging passage 6, and a third mounting frame 83 for placing the vacuum passage 4. The mobile frame 8 is also equipped with casters to facilitate the overall movement of the device and is suitable for various environments.

[0035] Specifically, in this embodiment, the intake passage 2 is sequentially equipped with a first pressure gauge 21, an A ball valve 24, an A solenoid valve 25, an A safety valve 26, a pressure reducing valve 22, a second pressure gauge 23, an A needle valve 27, and a B solenoid valve 28, all facing towards the buffer tank 1. The A ball valve 24, A solenoid valve 25, A safety valve 26, A needle valve 27, and B solenoid valve 28 are all part of an on / off valve group used to control the opening and closing of the intake passage 2. Multiple valves are used to achieve multi-level control of the intake passage 2, reducing the impact of damage to any one or two control valves on the normal operation of the entire intake passage 2. When setting up the on / off valve group, part of it needs to be located between the first pressure gauge 21 and the pressure reducing valve 22, and part of it needs to be located between the second pressure gauge 23 and the buffer tank 1. The number and types of valves can be selected and determined according to the actual situation.

[0036] A first solenoid valve 31 is installed on the air outlet passage 3 to control the opening and closing of the air outlet passage 3. In addition, a pressure relief pipe 7 is installed between the air outlet passage 3 and the air inlet passage 2, and a first ball valve 71 is installed on the pressure relief pipe 7.

[0037] In the purging passage, an external pressure reducing valve 400 is connected to the outlet of the external gas cylinder 300. Specifically, the external gas cylinder 300 in this application can be an inert gas cylinder. After the gas pressure is reduced to 0.6 MPa or below by the external pressure reducing valve 400, the gas enters the purging passage. First, the gas pressure is detected by the first pressure gauge 21, and then the gas is reduced a second time by the pressure reducing valve 22 to reach the gas pressure value for entering the buffer tank 1. After the pressure is reduced by the pressure reducing valve 22, the gas pressure is detected by the second pressure gauge 23 and then the inert gas is introduced into the buffer tank 1. At the same time, the first solenoid valve 31 is opened to allow the inert gas to be discharged from the outlet passage 3 of the purging passage, thereby forming a circulation passage for the inert gas to remove other gases in the pipeline and the buffer tank 1 and maintain a relatively pure storage environment for the gas to be tested.

[0038] If the air pressure exceeds the set standard value, safety valve A 26 is used to release the pressure; ball valve A 24, solenoid valve A 25, needle valve A 27 and solenoid valve B 28 are used to close the air intake passage 2 when the air pressure is inconsistent with the set standard value. Multiple control valves are set to achieve multiple controls and form multiple protections.

[0039] It should be noted that the buffer tank 1 is directly connected to the fourth solenoid valve 11 and the third pressure gauge 12. The third pressure gauge 12 can monitor the air pressure value in the buffer tank 1 in real time. During daily use, the fourth solenoid valve 11 is used to disconnect the buffer tank 1 from the third pressure gauge 12 to reduce the damage to the third pressure gauge 12 when the pressure value in the buffer tank 1 is unstable.

[0040] The vacuum passage 4 includes a pump assembly and control valves. The pump assembly includes a vortex pump 41, a molecular pump 42, and a vacuum gauge 43 arranged sequentially towards the buffer tank 1. The control valves are respectively located between the molecular pump 42 and the vortex pump 41, and between the vacuum gauge 43 and the buffer tank 1. In this embodiment, the control valves specifically include an A-angle valve 44 located between the vacuum gauge 43 and the buffer tank 1, and a B-angle valve 45 located between the molecular pump 42 and the vortex pump 41. The A-angle valve 44 and the B-angle valve 45 can be used to control the opening and closing of the vacuum passage 4.

[0041] During the vacuuming operation, close the inlet passage 2, outlet passage 3, gas intake passage 5 and bag passage 6, open the control valve, and use the vortex pump 41 and molecular pump 42 to extract the residual nitrogen in the buffer tank 1 step by step, so that the buffer tank 1 reaches a vacuum state. Use the vacuum gauge 43 to monitor and observe whether the buffer tank 1 has reached the vacuum environment required for the experiment.

[0042] A second solenoid valve 51, a filter 52, and a first quick connector 53 are sequentially arranged on the gas intake passage 5 in the direction away from the buffer tank 1. During the gas intake operation, based on the previous vacuuming operation, the vacuuming passage 4 is closed, the second solenoid valve 51 is opened, and the gas to be tested is drawn into the buffer tank 1 through the suction gun 200. The pressure value of the gas to be tested after being drawn into the buffer tank 1 is observed and read using the third pressure gauge 12 until the set pressure value is reached in the buffer tank 1. Then, the second solenoid valve 51 is closed, and the storage of the gas to be tested is completed.

[0043] A third solenoid valve 61, a first needle valve 62, and a second quick connector 63 are sequentially arranged on the bagging passage 6 in the direction away from the buffer tank 1. During the bagging operation, the air inlet passage 2 is opened, and the vacuum passage 4, air outlet passage 3, bagging passage 6, and air intake passage 5 are closed. Inert gas is introduced into the buffer tank 1 until the pressure inside the buffer tank 1 is greater than the gas pressure. Then, the air inlet passage 2 is closed, and the bagging passage 6 is opened to allow the gas in the buffer tank 1 to enter the air intake bag 100. After the air intake bag 100 is full, the bagging passage 6 is closed.

[0044] The mobile gas storage experimental equipment of this application allows operators to set automatic start-up and stop conditions according to different needs, facilitating precise control. Furthermore, the entire process flow of cleaning, gas storage, and gas extraction is rigorously and meticulously designed to meet the stringent standards for the gas being tested, while also being easy to operate. Simultaneously, each pathway of the experimental equipment is designed with a multi-level control structure, enabling precise control of inlet and outlet pressures and minimizing the impact of component failures on the normal operation of the entire equipment. In addition, the equipment is compact, easy to move, and flexible in operation, meeting the needs of various application scenarios.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile gas storage experimental device, characterized in that, include: Buffer tank (1) is used to store the gas to be tested; The purging passage includes an air inlet passage (2) and an air outlet passage (3). One end of the air inlet passage (2) is connected to the buffer tank (1), and the other end is connected to an external gas cylinder (300). One end of the air outlet passage (3) is connected to the buffer tank (1), and the other end is connected to the outside. The vacuum passage (4) includes a vacuum pump assembly and a control valve. One end of the vacuum passage (4) is connected to the buffer tank (1), and the other end is connected to the outside. The gas intake passage (5) is used to draw the gas to be tested at one end and is connected to the buffer tank (1) at the other end. The bagging passage (6) is connected to the sampling bag at one end and to the buffer tank (1) at the other end.

2. The mobile gas storage experimental device according to claim 1, characterized in that: It also includes a movable frame (8), which includes a first mounting frame (81) for fixing the buffer tank (1), a second mounting frame (82) for arranging and fixing the rinsing passage, the gas intake passage (5) and the bagging passage (6), and a third mounting frame (83) for placing the vacuum passage (4).

3. The mobile gas storage experimental device according to claim 1, characterized in that: The air intake passage (2) is provided with a first pressure gauge (21), a pressure reducing valve (22), and a second pressure gauge (23) in sequence. The air intake passage (2) is also provided with an on / off valve group, which includes one or more of a ball valve, a solenoid valve, a needle valve and a safety valve. The on / off valve group is partially located between the first pressure gauge (21) and the pressure reducing valve (22), and partially located between the second pressure gauge (23) and the buffer tank (1).

4. The mobile gas storage experimental device according to claim 3, characterized in that: A first solenoid valve (31) is provided on the air outlet passage (3).

5. A mobile gas storage experimental device according to claim 4, characterized in that: A pressure relief pipe (7) is provided between the air intake passage (2) and the air outlet passage (3), and a first ball valve (71) is provided on the pressure relief pipe (7).

6. The mobile gas storage experimental device according to claim 1, characterized in that: The pump assembly includes a vortex pump (41), a molecular pump (42), and a vacuum gauge (43) arranged in sequence. The control valves are respectively located between the molecular pump (42) and the vortex pump (41), and between the vacuum gauge (43) and the buffer tank (1).

7. The mobile gas storage experimental device according to claim 1, characterized in that: The gas intake passage (5) is provided with a second solenoid valve (51), a filter (52) and a first quick connector (53) in sequence in the direction away from the buffer tank (1).

8. A mobile gas storage experimental device according to claim 1, characterized in that: The bagging passage (6) is provided with a third solenoid valve (61), a first needle valve (62), and a second quick connector (63) in sequence in the direction away from the buffer tank (1).

9. A mobile gas storage experimental device according to claim 1, characterized in that: The buffer tank (1) is directly connected to a fourth solenoid valve (11) and a third pressure gauge (12).

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