Device for detecting air tightness and air permeability of equipment

Abstract

The utility model belongs to the technical field of detection equipment, and provides a device for detecting air tightness and air permeability of equipment, which comprises a shell, a main machine, an instrument bottle and a drying tube, the main machine and the instrument bottle are respectively arranged on the side wall of the shell, a cleaning peristaltic pump, an acid peristaltic pump and a sample peristaltic pump are arranged in the shell, and the drying tube is arranged in the shell. The cleaning peristaltic pump, the acid peristaltic pump and the sample peristaltic pump are respectively communicated with the instrument bottle, and the cleaning peristaltic pump, the acid peristaltic pump and the sample peristaltic pump are arranged in the shell and are communicated with the instrument bottle, so that automatic treatment and flowing of a sample in the detection process are realized, the detection efficiency and the automation degree are improved, and the detection accuracy is improved. The gas sensor, the flow meter, the gas pump and the electromagnetic three-way valve are communicated with the instrument bottle, so that the flowing and measurement of gas can be accurately controlled, and the gas tightness and air permeability of equipment to be detected can be more accurately evaluated.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, and particularly relates to a device for detecting the air tightness and air permeability of equipment. Background Art

[0002] In many industrial and scientific research fields, the air tightness and permeability of equipment are important indicators to measure its performance and safety. For example, the air tightness of chemical and mechanical manufacturing equipment is directly related to the quality and safety of the product. Therefore, the development of effective air tightness and permeability testing methods is crucial to improving product quality and ensuring safety.

[0003] The existing air tightness testing methods mainly include the bubble method, the smear method and the pressure method. Although these methods can provide effective test results in some cases, they all have certain limitations. For example, the bubble method and the smear method rely on the subjective judgment of the operator, and the test results are easily affected by the operator's skills and experience. In addition, these methods usually require anti-rust treatment after testing, which increases additional maintenance costs.

[0004] The pressure method is a more objective detection method, which determines the air tightness by measuring the pressure difference between the inside and outside of the device. However, this method requires the device to be tested to have good scalability, which is a challenge for some devices with complex structures or special materials. In addition, the pressure method is limited in its effectiveness in detecting air permeability because it cannot distinguish the specific path and rate of gas passing through the device. Existing technologies cannot meet the needs for accurate, reliable and easy-to-operate air tightness and permeability testing, especially when air tightness and permeability need to be tested simultaneously. Existing methods often cannot provide satisfactory solutions.

[0005] Therefore, it is necessary to design a device for detecting the air tightness and air permeability of equipment to solve the above technical problems. Summary of the invention

[0006] In order to solve the above technical problems, the utility model proposes a device for detecting the air tightness and air permeability of equipment. A cleaning peristaltic pump, an acid peristaltic pump and a sample peristaltic pump are arranged inside the shell, and are connected with the instrument bottle, thereby realizing automatic processing and flow of samples during the detection process, improving the detection efficiency and the degree of automation. A gas sensor, a flow meter, an air pump and an electromagnetic three-way valve are connected with the instrument bottle, which can accurately control the flow and measurement of the gas, thereby more accurately evaluating the air tightness and air permeability of the equipment to be detected.

[0007] The technical solution of the utility model is:

[0008] A device for detecting air tightness and air permeability of equipment, comprising a shell, a mainframe, an instrument bottle and a drying tube, wherein the mainframe and the instrument bottle are respectively arranged on the side wall of the shell;

[0009] A cleaning peristaltic pump, an acid peristaltic pump, and a sample peristaltic pump are arranged inside the shell, and the cleaning peristaltic pump, the acid peristaltic pump, and the sample peristaltic pump are respectively connected to the instrument bottle;

[0010] The shell is also provided with a gas sensor connected to the instrument bottle, a flow meter connected to the gas sensor, an air pump connected to the flow meter, and an electromagnetic three-way valve connected to the air pump. The electromagnetic three-way valve is connected to the drying tube, and the drying tube is connected to the instrument bottle. By arranging a cleaning peristaltic pump, an acid peristaltic pump, and a sample peristaltic pump inside the shell and connecting them to the instrument bottle, the automatic processing and flow of samples during the detection process are realized, and the detection efficiency and automation are improved. The cleaning peristaltic pump automatically rinses the instrument bottle to ensure the cleanliness of the equipment to be detected; the acid peristaltic pump and the sample peristaltic pump automatically extract and transport acidic solutions and sample solutions to perform air tightness and permeability tests. The arrangement of the gas sensor, flow meter, air pump, and electromagnetic three-way valve can accurately control the flow and measurement of the gas, thereby more accurately evaluating the air tightness and air permeability of the equipment to be detected.

[0011] Preferably, the shell is provided with a first independent chamber, a second independent chamber, a third independent chamber and a fourth independent chamber, and the first independent chamber, the second independent chamber, the third independent chamber and the fourth independent chamber are arranged in sequence along the length direction of the shell. By providing the first independent chamber, the second independent chamber, the third independent chamber and the fourth independent chamber, a clear division of the internal structure of the shell is achieved, and the orderliness and safety of the detection process are improved. The independent chambers are arranged in sequence along the length direction of the shell, making the device structure more compact, saving space, and facilitating deployment and use.

[0012] Preferably, a spare cleaning peristaltic pump, a spare acid peristaltic pump, and a spare sample peristaltic pump are arranged in the second independent chamber. The spare cleaning peristaltic pump, the spare acid peristaltic pump, and the spare sample peristaltic pump are arranged in the second independent chamber, which enhances the redundancy of the equipment and ensures that the detection process can continue when the cleaning peristaltic pump, the acid peristaltic pump, and the sample peristaltic pump fail, thereby improving the reliability and continuity of the detection.

[0013] Preferably, the first independent chambers are provided with three, and the cleaning peristaltic pump, the acid peristaltic pump, and the sample peristaltic pump are respectively located in the first independent chambers;

[0014] The third independent chamber is provided with two, and the two third independent chambers are symmetrical to each other, and the gas sensor and the electromagnetic three-way valve are respectively located in the third independent chamber;

[0015] The flow meter and the air pump are located in the fourth independent chamber.

[0016] Preferably, the cleaning peristaltic pump, the acid peristaltic pump and the sample peristaltic pump are arranged in sequence along the width direction of the housing.

[0017] Preferably, the instrument bottle is an organic glass instrument bottle. The instrument bottle is made of organic glass material, which has high transparency, is convenient for observing the internal situation, and improves the accuracy and convenience of detection.

[0018] Preferably, a desiccant is arranged in the drying tube, a filter screen is arranged at both ends of the drying tube, and the desiccant is wrapped in a breathable bag. A desiccant is arranged in the drying tube, a filter screen is arranged at both ends, and the desiccant is wrapped in a breathable bag, which effectively absorbs moisture in the gas, prevents impurities from entering the drying tube, protects the desiccant, and prolongs the service life.

[0019] Preferably, the gas sensor is a carbon dioxide sensor or a hydrogen sensor. The gas sensor can be a carbon dioxide sensor or a hydrogen sensor. According to different detection requirements, a suitable gas sensor is selected to improve the flexibility and accuracy of detection.

[0020] Preferably, the cleaning peristaltic pump, the acid peristaltic pump, the sample peristaltic pump, the gas sensor, the flow meter, the air pump, the electromagnetic three-way valve, the spare cleaning peristaltic pump, the spare acid peristaltic pump, and the spare sample peristaltic pump are all electrically connected to the host.

[0021] Preferably, the bottom of the instrument bottle is connected to the device to be detected.

[0022] Compared with the prior art, the utility model has the following advantages and effects:

[0023] (1) A cleaning peristaltic pump, an acid peristaltic pump, and a sample peristaltic pump are arranged inside the shell and connected to the instrument bottle, thereby realizing automatic processing and flow of samples during the detection process, improving detection efficiency and automation. A gas sensor, a flow meter, an air pump, and an electromagnetic three-way valve are connected to the instrument bottle, which can accurately control the flow and measurement of the gas, thereby more accurately evaluating the air tightness and air permeability of the equipment to be detected;

[0024] (2) By setting up the first independent chamber, the second independent chamber, the third independent chamber and the fourth independent chamber, a clear division of the internal structure of the device is achieved, which improves the orderliness and safety of the detection process. The independent chambers are arranged in sequence along the length direction of the shell. This layout makes the device structure more compact, saves space, and is easy to deploy and use;

[0025] (4) A spare cleaning peristaltic pump, a spare acid peristaltic pump and a spare sample peristaltic pump are installed in the second independent chamber, which enhances the redundancy of the equipment and ensures that the detection process can continue when the cleaning peristaltic pump, the acid peristaltic pump and the sample peristaltic pump fail, thereby improving the reliability and continuity of the detection.

[0026] (5) A desiccant is installed in the drying tube and wrapped in a breathable bag, which can effectively absorb moisture in the gas. Filters are installed at both ends of the drying tube to prevent impurities from entering the drying tube, protect the desiccant, and extend the service life of the desiccant.

[0027] (6) All components are electrically connected to the main machine, which realizes the automatic control of the detection process, reduces the complexity of manual operation, and improves the detection efficiency and accuracy. The design of connecting the bottom of the instrument bottle to the device to be tested simplifies the device connection process and improves the applicability and convenience of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0029] Figure 2 for Figure 1 A schematic diagram of the front structure of

[0030] Figure 3 for Figure 2 Schematic diagram of the top view structure;

[0031] Figure 4 The overall structure of the utility model is shown in FIG. Figure 2 .

[0032] Figure numerals: 1. Shell; 2. Main unit; 3. Cleaning peristaltic pump; 4. Acid peristaltic pump; 5. Sample peristaltic pump; 6. Instrument bottle; 7. Solenoid three-way valve; 8. Gas sensor; 9. Flow meter; 10. Drying tube; 11. Air pump; 101. First independent chamber; 102. Second independent chamber; 103. Third independent chamber; 104. Fourth independent chamber; 30. Spare cleaning peristaltic pump; 40. Spare acid peristaltic pump; 50. Spare sample peristaltic pump. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0034] Embodiment 1:

[0035] like Figure 1 to Figure 4 As shown, the utility model provides a device for detecting the air tightness and air permeability of equipment, a device for detecting the air tightness and air permeability of equipment, comprising a shell 1, a host 2, an instrument bottle 6 and a drying tube 10, the host 2 and the instrument bottle 6 are respectively arranged on the side wall of the shell 1;

[0036] A cleaning peristaltic pump 3, an acid peristaltic pump 4, and a sample peristaltic pump 5 are arranged inside the housing 1, and the cleaning peristaltic pump 3, the acid peristaltic pump 4, and the sample peristaltic pump 5 are respectively connected to the instrument bottle 6;

[0037] The housing 1 is also provided with a gas sensor 8 connected to the instrument bottle 6, a flow meter 9 connected to the gas sensor 8, an air pump 11 connected to the flow meter 9, and an electromagnetic three-way valve 7 connected to the air pump 11. The electromagnetic three-way valve 7 is connected to the drying tube 10, and the drying tube 10 is connected to the instrument bottle 6. By arranging a cleaning peristaltic pump 3, an acid peristaltic pump 4, and a sample peristaltic pump 5 inside the housing 1 and connecting them to the instrument bottle 6, the automatic processing and flow of the sample during the detection process are realized, and the detection efficiency and automation are improved. The cleaning peristaltic pump 3 automatically rinses the instrument bottle 6 to ensure the cleanliness of the equipment to be detected; the acid peristaltic pump 4 and the sample peristaltic pump 5 automatically extract and transport the acid solution and the sample solution to perform air tightness and air permeability detection. The arrangement of the gas sensor 8, the flow meter 9, the air pump 11 and the electromagnetic three-way valve 7 can accurately control the flow and measurement of the gas, so as to more accurately evaluate the air tightness and air permeability of the equipment to be detected.

[0038] The first independent chamber 101, the second independent chamber 102, the third independent chamber 103 and the fourth independent chamber 104 are arranged in sequence along the length direction of the shell 1. By setting the first independent chamber 101, the second independent chamber 102, the third independent chamber 103 and the fourth independent chamber 104, a clear division of the internal structure of the shell 1 is achieved, and the orderliness and safety of the detection process are improved. The independent chambers are arranged in sequence along the length direction of the shell 1, making the device structure more compact, saving space, and facilitating deployment and use.

[0039] A spare cleaning peristaltic pump 30, a spare acid peristaltic pump 40, and a spare sample peristaltic pump 50 are arranged in the second independent chamber 102. The spare cleaning peristaltic pump 30, the spare acid peristaltic pump 40, and the spare sample peristaltic pump 50 are arranged in the second independent chamber 102, which enhances the redundancy of the equipment and ensures that when the cleaning peristaltic pump 3, the acid peristaltic pump 4, and the sample peristaltic pump 5 fail, the detection process can still continue, thereby improving the reliability and continuity of the detection.

[0040] The first independent chamber 101 is provided with three, and the cleaning peristaltic pump 3, the acid peristaltic pump 4, and the sample peristaltic pump 5 are respectively located in the first independent chamber 101;

[0041] The number of third independent chambers 103 is two, and the two third independent chambers 103 are symmetrical to each other. The gas sensor 8 and the electromagnetic three-way valve 7 are respectively located in the third independent chambers 103;

[0042] The flow meter 9 and the air pump 11 are located in the fourth independent chamber 104 .

[0043] The cleaning peristaltic pump 3 , the acid peristaltic pump 4 , and the sample peristaltic pump 5 are arranged in sequence along the width direction of the housing 1 .

[0044] The instrument bottle 6 is an organic glass instrument bottle. The instrument bottle 6 is made of organic glass material, which has high transparency, is convenient for observing the internal situation, and improves the accuracy and convenience of detection.

[0045] A desiccant is arranged in the drying tube 10, and a filter screen is arranged at both ends of the drying tube 10. The desiccant is wrapped in a breathable bag. A desiccant is arranged in the drying tube 10, and a filter screen is arranged at both ends. The desiccant is wrapped in a breathable bag, which effectively absorbs moisture in the gas, prevents impurities from entering the drying tube, protects the desiccant, and prolongs the service life.

[0046] The gas sensor 8 is a carbon dioxide sensor or a hydrogen sensor. The gas sensor 8 can be a carbon dioxide sensor or a hydrogen sensor. According to different detection requirements, a suitable gas sensor is selected to improve the flexibility and accuracy of the detection.

[0047] The cleaning peristaltic pump 3 , the acid peristaltic pump 4 , the sample peristaltic pump 5 , the gas sensor 8 , the flow meter 9 , the air pump 11 , the electromagnetic three-way valve 7 , the spare cleaning peristaltic pump 30 , the spare acid peristaltic pump 40 , and the spare sample peristaltic pump 50 are all electrically connected to the host 2 .

[0048] The bottom of the instrument bottle 6 is connected to the device to be detected.

[0049] Working principle:

[0050] Shell 1, providing protection and support for internal components;

[0051] The host 2 is responsible for coordinating and controlling the entire detection process. The cleaning peristaltic pump 3, the acid peristaltic pump 4, the sample peristaltic pump 5, the gas sensor 8, the flow meter 9, the air pump 11, the electromagnetic three-way valve 7, the spare cleaning peristaltic pump 30, the spare acid peristaltic pump 40, and the spare sample peristaltic pump 50 are all electrically connected to the host 2, and are connected to all key components through electrical connections to achieve automatic control, reduce manual operations, and improve efficiency and accuracy;

[0052] The cleaning peristaltic pump 3 is used to rinse the instrument bottle during the detection process to clean the device to be detected, and the fluid is pushed by the peristaltic motion to ensure the precise control of the fluid;

[0053] Acid peristaltic pump 4, used to extract and deliver acidic solution during the detection process, it also works by peristaltic motion and is suitable for delivering corrosive or viscous fluids;

[0054] The sample peristaltic pump 5 is used to extract and deliver the sample solution during the detection process. It works by peristaltic motion and is suitable for delivering various types of fluids;

[0055] The instrument bottle 6 is a container for loading the equipment to be tested. It is usually made of transparent material, such as organic glass, so as to facilitate observation of the internal situation;

[0056] The electromagnetic three-way valve 7 is used to control the flow path of the gas. It controls the opening and closing of the valve through electromagnetic action, thereby adjusting the direction of the gas flow;

[0057] The gas sensor 8 is used to detect the gas composition and pressure changes flowing through the device to be tested, so as to evaluate the air tightness and air permeability of the device;

[0058] Flow meter 9 is used to measure gas flow to evaluate the air tightness of the equipment. It works by measuring the rate and volume of gas passing through the pipeline;

[0059] Air pump 11: The air pump is used to generate airflow for air tightness and air permeability testing. It generates airflow through mechanical action and delivers it to the device to be tested;

[0060] The drying tube 10 is provided with a desiccant for absorbing moisture in the gas. It removes moisture through physical adsorption or chemical reaction, thereby keeping the gas dry;

[0061] The standby cleaning peristaltic pump 30, the standby acid peristaltic pump 40 and the standby sample peristaltic pump 50 take over the work in case of failure to ensure the continuity of the detection process;

[0062] When in use, the device to be tested is connected to the instrument bottle 6, the air pump 11 and the electromagnetic three-way valve 7 are turned on, and the flow meter 9 is adjusted to the allowable measurement range of the gas sensor 8. When the gas sensor 8 is a carbon dioxide sensor, when the carbon dioxide gas concentration in the device to be tested approaches the atmospheric concentration, the electromagnetic three-way valve 7 is closed, and the instrument bottle 6 is flushed with the cleaning peristaltic pump 3. After the flushing is completed, a certain amount of sodium carbonate and phosphoric acid are extracted from the device to be tested through the acid peristaltic pump 4 and the sample peristaltic pump 5. At this time, the carbon dioxide content will rise rapidly until it diffuses to the highest point. The host 2 displays the data in real time, calculates the air tightness and permeability parameters, and infers the air tightness condition by observing the image drop rate after the carbon dioxide content reaches the highest point;

[0063] It can also be applied to the reaction between a metal element and a strong acid, and the gas sensor 8 is a hydrogen sensor.

[0064] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A device for detecting the air tightness and air permeability of equipment, characterized in that: It comprises a housing (1), a main unit (2), an instrument bottle (6) and a drying tube (10), wherein the main unit (2) and the instrument bottle (6) are respectively arranged on the side wall of the housing (1); A cleaning peristaltic pump (3), an acid peristaltic pump (4), and a sample peristaltic pump (5) are arranged inside the housing (1); the cleaning peristaltic pump (3), the acid peristaltic pump (4), and the sample peristaltic pump (5) are respectively connected to the instrument bottle (6); The housing (1) is further provided with a gas sensor (8) connected to the instrument bottle (6), a flow meter (9) connected to the gas sensor (8), an air pump (11) connected to the flow meter (9), and an electromagnetic three-way valve (7) connected to the air pump (11); the electromagnetic three-way valve (7) is connected to the drying tube (10), and the drying tube (10) is connected to the instrument bottle (6).

2. The device for detecting air tightness and air permeability of equipment according to claim 1, characterized in that: A first independent chamber (101), a second independent chamber (102), a third independent chamber (103) and a fourth independent chamber (104) are arranged inside the shell (1); the first independent chamber (101), the second independent chamber (102), the third independent chamber (103) and the fourth independent chamber (104) are arranged in sequence along the length direction of the shell (1).

3. The device for detecting air tightness and air permeability of equipment according to claim 2, characterized in that: A spare cleaning peristaltic pump (30), a spare acid peristaltic pump (40), and a spare sample peristaltic pump (50) are arranged in the second independent chamber (102).

4. The device for detecting air tightness and air permeability of equipment according to claim 2, characterized in that: The number of the first independent chambers (101) is three, and the cleaning peristaltic pump (3), the acid peristaltic pump (4), and the sample peristaltic pump (5) are respectively located in the first independent chambers (101); The third independent chamber (103) is provided in two pieces, and the two third independent chambers (103) are symmetrical to each other, and the gas sensor (8) and the electromagnetic three-way valve (7) are respectively located in the third independent chamber (103); The flow meter (9) and the air pump (11) are located in the fourth independent chamber (104).

5. The device for detecting air tightness and air permeability of equipment according to claim 1, characterized in that: The cleaning peristaltic pump (3), the acid peristaltic pump (4), and the sample peristaltic pump (5) are arranged in sequence along the width direction of the housing (1).

6. The device for detecting air tightness and air permeability of equipment according to claim 1, characterized in that: The instrument bottle (6) is a plexiglass instrument bottle.

7. The device for detecting air tightness and air permeability of equipment according to claim 1, characterized in that: A desiccant is arranged in the drying tube (10), filter screens are arranged at both ends of the drying tube (10), and the desiccant is wrapped in a breathable bag.

8. The device for detecting air tightness and air permeability of equipment according to claim 1, characterized in that: The gas sensor (8) is a carbon dioxide sensor or a hydrogen sensor.

9. The device for detecting air tightness and air permeability of equipment according to claim 3, characterized in that: The cleaning peristaltic pump (3), the acid peristaltic pump (4), the sample peristaltic pump (5), the gas sensor (8), the flow meter (9), the air pump (11), the electromagnetic three-way valve (7), the spare cleaning peristaltic pump (30), the spare acid peristaltic pump (40), and the spare sample peristaltic pump (50) are all electrically connected to the host (2).

10. The device for detecting air tightness and air permeability of equipment according to claim 1, characterized in that: The bottom of the instrument bottle (6) is connected to the device to be tested.

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