Luer taper positive and negative pressure sealing test device

Abstract

The utility model belongs to the sealing performance test field, and relates to a Luer taper positive and negative pressure sealing test device comprising a pressure reducing valve, the pressure reducing valve is respectively connected with a first solenoid valve and a throttle valve, the first solenoid valve is connected to a vacuum generator, the vacuum generator is connected to a second solenoid valve, and the throttle valve is connected to a third solenoid valve. The second electromagnetic valve and the third electromagnetic valve are jointly connected to a three-way electromagnetic valve, and the three-way electromagnetic valve is connected to a testing cavity. The device is complete in structure and complete in function, a positive pressure system and a negative pressure system are effectively integrated, the testing accuracy and efficiency are improved, space waste and operation complexity caused by independent operation of positive pressure and negative pressure in a traditional system are avoided, and a guarantee is provided for stability and reliability in the Luer taper sealing testing process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of sealing test, specifically relates to a luer joint positive and negative pressure sealing test device. BACKGROUND

[0002] In many industrial applications, sealing test is a key step to ensure the normal operation of equipment. Especially in gas pipeline systems, chemical reaction vessels, pressure vessels and various types of pipe fittings, the accuracy of sealing test is directly related to the safety and reliability of the system. With the development of the times, the application of luer joint is more and more widely, and the requirement of luer joint will be more and more strict, among them, the positive and negative pressure leakage rate test is the core of luer joint test project, so it is required to ensure the accuracy and stability of the test results of the positive and negative pressure test system, and the structure should be simple and easy to maintain. In order to improve the test efficiency, reduce the equipment occupation space and simplify the operation, the utility model provides a luer joint positive and negative pressure sealing test device integrated with positive and negative pressure test system. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a luer joint positive and negative pressure sealing test device, which can ensure that the pressure system can be adjusted and stabilized in time during positive and negative pressure test, so as to ensure that there is no pressure fluctuation in the test process, and solve the problem of inaccurate test caused by independent operation of positive and negative pressure and unstable pressure in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that the utility model provides a luer joint positive and negative pressure sealing test device, which comprises a pressure reducing valve, the pressure reducing valve is connected with electromagnetic valve one and throttle valve respectively, electromagnetic valve one is connected to vacuum generator, vacuum generator is connected to electromagnetic valve two, throttle valve is connected to electromagnetic valve three, electromagnetic valve two and electromagnetic valve three are connected to three-way electromagnetic valve together, three-way electromagnetic valve is connected to test cavity.

[0005] As a preferred, the front end of the pressure reducing valve is provided with an air source.

[0006] As a preferred, one side of the vacuum generator is connected to pressure relief valve one.

[0007] As a preferred, a pressure sensor one is arranged between electromagnetic valve two and three-way electromagnetic valve.

[0008] As a preferred, pressure relief valve two is arranged between electromagnetic valve three and three-way electromagnetic valve.

[0009] As a preferred, a pressure sensor two is arranged between three-way electromagnetic valve and test cavity.

[0010] Compared with the prior art, the utility model has the advantages and positive effects that,

[0011] This utility model has a complete structure and perfect functions. It effectively integrates positive and negative pressure systems, improves the accuracy and efficiency of testing, and avoids the space waste and operational complexity caused by the independent operation of positive and negative pressure in traditional systems. It provides a guarantee for the stability and reliability of Luer joint sealing test process.

[0012] This invention ensures that the pressure system can be adjusted and stabilized in a timely manner during positive and negative pressure testing, thereby preventing pressure fluctuations during the testing process and solving the problem of inaccurate testing caused by independent operation of positive and negative pressure and unstable pressure in the prior art. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a Luer joint positive and negative pressure sealing test device provided in Example 1;

[0015] In the diagram above, 1 is the air source, 2 is the pressure reducing valve, 3 is the solenoid valve one, 4 is the throttle valve, 5 is the vacuum generator, 6 is the pressure relief valve one, 7 is the solenoid valve two, 8 is the solenoid valve three, 9 is the three-way solenoid valve, 10 is the pressure sensor one, 11 is the pressure relief valve two, 12 is the pressure sensor two, and 13 is the test chamber. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1, such as Figure 1 As shown, a Luer joint positive and negative pressure sealing test device includes a pressure reducing valve 2, which is connected to a solenoid valve 3 and a throttle valve 4 respectively. The solenoid valve 3 is connected to a vacuum generator 5, the vacuum generator 5 is connected to a solenoid valve 7, the throttle valve is connected to a solenoid valve 8, and the solenoid valve 7 and the solenoid valve 8 are connected to a three-way solenoid valve 9. The three-way solenoid valve 9 is connected to the test chamber 13.

[0019] The pressure reducing valve 2 is used to control the pressure of the gas, reducing the pressure of the high-pressure gas source 1 to the working pressure required by the test system. By adjusting the pressure reducing valve 2, the gas pressure in the test system can be accurately controlled to ensure stability and accuracy during the test process, avoiding unnecessary effects on the test sample due to excessive or insufficient pressure. The gas source 1 is arranged at the front end of the pressure reducing valve 2, which provides high-pressure gas for the test system and reduces the pressure of the gas to the set value through connection with the pressure reducing valve 2, so as to be delivered to the test chamber 13 through the pipeline.

[0020] The pressure reducing valve 2 is connected to the electromagnetic valve one 3 and the throttle valve 4 respectively. The electromagnetic valve one 3 is used to control the flow of gas, which can realize the opening and closing of the gas according to the needs of the system. When positive pressure test is needed, the electromagnetic valve one 3 is opened to allow the gas to flow from the gas source into the test chamber 13. The electromagnetic valve one 3 is connected to the vacuum generator 5, and the main function of the vacuum generator 5 is to generate negative pressure to provide the necessary vacuum environment for the test system. The vacuum generator 5 forms a negative pressure state by extracting air or gas in the test chamber 13, so as to carry out the sealing test. The vacuum generator 5 is connected to the pressure relief valve one 6, which is used to control the pressure release in the test chamber 13. When the pressure in the system exceeds the set value, the pressure relief valve one 6 will automatically open to allow the excess gas or air to be released, preventing the system from overpressure and ensuring the safety of the equipment and the test process. The vacuum generator 5 is connected to the electromagnetic valve two 7, which has the same function as the electromagnetic valve one 3, and is used to control the formation and maintenance of negative pressure in the test chamber 13. When negative pressure test is needed, the electromagnetic valve two 7 is opened to allow the negative pressure of the vacuum generator 5 to act on the test chamber 13. After completing the negative pressure test, the electromagnetic valve two 7 is closed to cut off the connection between the vacuum generator 5 and the test chamber 13. The throttle valve 4 is used to accurately adjust the gas flow, and by adjusting the opening of the valve, the flow rate and pressure of the gas can be controlled. The throttle valve 4 is usually used to control the slow adjustment of gas flow, so that the gas flows smoothly during the test, thereby avoiding the influence on the test results due to too fast or unstable gas flow. The throttle valve 4 is connected to the electromagnetic valve three 8, which is used to control the switching of gas flow direction, and is responsible for switching the path of gas flow between the throttle valve 4 and the three-way electromagnetic valve 9. By opening and closing the electromagnetic valve three 8, the gas flow can be introduced or cut off in a specific test channel, thereby realizing the control of different test states. The electromagnetic valve two 7 and the electromagnetic valve three 8 are jointly connected to the three-way electromagnetic valve 9, which is a three-way electromagnetic valve that can switch the gas flow path between different pipelines as needed. In this device, the three-way electromagnetic valve 9 is connected to the electromagnetic valve two 7, the electromagnetic valve three 8 and the test chamber 13. Through the control of the three-way electromagnetic valve 9, the gas flow can be directed to the test chamber 13 or other exhaust channels to realize the gas flow control and pressure adjustment in the positive and negative pressure test processes.

[0021] A pressure sensor one 10 is arranged between the electromagnetic valve two 7 and the three-way electromagnetic valve 9, which is used to monitor the gas pressure between the electromagnetic valve two 7 and the three-way electromagnetic valve 9. The pressure sensor one 10 can provide real-time feedback of the gas pressure in the pipeline, ensuring that the system pressure meets the predetermined working requirements. A pressure relief valve two 11 is arranged between the electromagnetic valve three 8 and the three-way electromagnetic valve 9, which is used to automatically release gas when the gas pressure is too high, preventing the system from overpressure. Stable pressure can be maintained in the pipeline between the electromagnetic valve three 8 and the three-way electromagnetic valve 9, ensuring that the pressure does not exceed the safety threshold, protecting the system from damage. The three-way electromagnetic valve 9 is connected to the test cavity 13, which is usually used to place the luer joint for testing. During the test process, the test cavity 13 will be pressurized or vacuumed, thereby simulating the air tightness under normal working conditions. The change of gas pressure in the test cavity 13 directly reflects the tightness of the joint or assembly. A pressure sensor two 12 is arranged between the three-way electromagnetic valve 9 and the test cavity 13, which is responsible for monitoring the gas pressure in the test cavity 13. The pressure sensor two 12 provides real-time pressure data in the test cavity 13, which is used to ensure that the pressure during the test meets the requirements, and adjusts the state of the electromagnetic valve or other equipment through the feedback control system, ensuring the accuracy of the test.

[0022] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0023] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present application without departing from the technical scheme of the present application shall fall within the protection scope of the present application.

Claims

1. A luer connector positive and negative pressure seal testing device, characterized by, The pressure reducing valve is connected with the electromagnetic valve one and the throttle valve respectively, the electromagnetic valve one is connected with the vacuum generator, the vacuum generator is connected with the electromagnetic valve two, the throttle valve is connected with the electromagnetic valve three, the electromagnetic valve two and the electromagnetic valve three are connected with the three-way electromagnetic valve, and the three-way electromagnetic valve is connected with the test cavity.

2. The luer connector positive and negative pressure seal testing device of claim 1, wherein, The front end of the pressure reducing valve is provided with an air source.

3. The luer connector pressure seal testing device of claim 1, wherein, One side of the vacuum generator is connected with the pressure relief valve one.

4. The luer connector pressure seal testing device of claim 1, wherein, The pressure sensor one is arranged between the electromagnetic valve two and the three-way electromagnetic valve.

5. The luer connector pressure seal testing device of claim 1, wherein, The pressure relief valve two is arranged between the electromagnetic valve three and the three-way electromagnetic valve.

6. The luer connector pressure seal testing device of claim 1, wherein, The pressure sensor two is arranged between the three-way electromagnetic valve and the test cavity.

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