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CN-224216254-U - Leak detection device for vacuum system

CN224216254UCN 224216254 UCN224216254 UCN 224216254UCN-224216254-U

Abstract

The utility model discloses a leak detection device for a vacuum system, which comprises a vacuum pump station and a pump station leak detection mechanism. The vacuum pump station is provided with a machine body, a base, a vacuum pump, a control panel and a vacuum tube, wherein the vacuum pump is fixed in the machine body and is communicated with the outside through the vacuum tube, and the control panel is used for controlling and displaying the running state. The pump station leak detection mechanism is fixedly embedded at the rear side of the vacuum pump station, a test box is in butt joint with a port at the rear side of the machine body, a super-hydrophobic film layer is arranged at the rear side of an inner cavity of the test box, a partition plate is arranged at the front side, and a support plate is fixed at the top of the partition plate and is connected with an infrared liquid level sensor. When the vacuum pump station leaks, the pressure difference between the inside and the outside enables purified water to enter the front side area of the inner cavity of the test box through the super-hydrophobic membrane layer, the infrared liquid level sensor detects the liquid level change and sends out a signal to prompt an operator to process. The device has compact structure and simple and convenient operation, can effectively detect the leakage of the vacuum pump station in time, ensures the stable operation of the vacuum system, and reduces the maintenance cost and the production risk.

Inventors

  • SHAO LIWEI

Assignees

  • 峰禾自动化科技(天津)有限公司

Dates

Publication Date
20260508
Application Date
20250702

Claims (10)

  1. 1. The leak detection device for the vacuum system comprises a vacuum pump station (1) and is characterized in that a pump station leak detection mechanism (2) is fixedly embedded on the side wall of the rear side of the vacuum pump station (1); The vacuum pump station (1) comprises a machine body (11), a base (12) fixed on the bottom end surface of the machine body (11), and a vacuum pump (13) fixedly connected to the top surface of the base (12) and positioned in the machine body (11), wherein a control panel (15) is fixedly connected to the top surface of the machine body (11), and a vacuum conveying end of the vacuum pump (13) is connected with a plurality of vacuum tubes (16) penetrating through the exterior of the machine body (11); The pump station leak hunting mechanism (2) comprises a test box (21) fixedly connected to the port position at the rear side of the machine body (11), a super-hydrophobic membrane layer (27) fixedly arranged at the rear side of the inner cavity of the test box (21), and a baffle plate (25) fixedly connected to the front side of the inner cavity of the test box (21), wherein a supporting plate (24) is fixedly connected to the top surface of the baffle plate (25).
  2. 2. The leak detection apparatus for a vacuum system according to claim 1, wherein the rear end face of the main body (11) has a notch penetrating the inner cavity of the test case (21).
  3. 3. The leak detection apparatus for a vacuum system according to claim 1, wherein the top end face of the main body (11) and the bottom end face of the control panel (15), and the bottom end face of the main body (11) and the top end face of the base (12) are fixed by screws and sealant.
  4. 4. The leak detection apparatus for a vacuum system according to claim 1, wherein a pump station controller (14) is mounted on a side wall of an inner cavity of the body (11), and wheels (17) are mounted at four corners of a bottom surface of the base (12).
  5. 5. The leak detection apparatus for a vacuum system according to claim 1, wherein a plurality of through holes through which the vacuum pipes (16) pass are formed in the side wall of the main body (11), and sealing rings are fixed in the through holes.
  6. 6. The leak detection apparatus for a vacuum system according to claim 1, wherein the front end faces of the test cases (21) each have an opening that interfaces with a rear side port of the main body (11), and a bottom surface of the test case (21) is fixedly connected to a rear side of a top surface of the base (12).
  7. 7. The leak detection device for a vacuum system according to claim 1, wherein the super-hydrophobic membrane layer (27) divides the inner cavity of the test box (21) into a front part and a rear part, wherein purified water is arranged in the rear part of the inner cavity of the test box (21), the water-repellent surface of the super-hydrophobic membrane layer (27) faces the rear side of the inner cavity of the test box (21), and after the vacuum pump station (1) leaks to generate a pressure difference, the purified water is forced to penetrate through the super-hydrophobic membrane layer (27) and enter the front side area of the inner cavity of the test box (21).
  8. 8. The leak detection apparatus for a vacuum system according to claim 1, wherein the height of the partition plate (25) is 1/2 of the overall height of the test tank (21), and an opening for allowing the gas inside the vacuum pump station (1) to pass through the front side area of the inner cavity of the test tank (21) is provided between the top surface of the partition plate (25) and the bottom of the inner cavity of the test tank (21).
  9. 9. The leak detection device for a vacuum system according to claim 1, wherein a water inlet (22) is formed in the top surface of the test box (21), and a water inlet valve (23) is installed in the water inlet (22).
  10. 10. The leak detection device for a vacuum system according to claim 1, wherein a supporting plate (24) is fixedly connected to the rear side of the top surface of the partition plate (25), and the rear side of the bottom surface of the supporting plate (24) is fixedly connected to the side wall of the infrared liquid level sensor (26), and the detection end of the infrared liquid level sensor (26) faces the side wall of the bottom of the inner cavity of the test box (21) and is used for monitoring whether purified water enters the front side area of the inner cavity of the test box (21) through the super-hydrophobic film layer (27).

Description

Leak detection device for vacuum system Technical Field The utility model relates to the technical field of vacuum pump station leakage detection, in particular to a leakage detection device for a vacuum system. Background In vacuum system applications, leakage problems have been a critical factor affecting system performance and stability. The vacuum system is widely applied to the fields of industrial production, scientific research experiments and the like, has higher requirement on vacuum degree, and can not only lead the system to reach the expected vacuum degree but also possibly influence the product quality and experimental result once leakage occurs. The conventional vacuum system leak detection method has certain limitations. For example, some detection methods are complicated to operate, require specialized personnel to operate, have low detection efficiency, and have insufficient sensitivity, and are difficult to detect small leaks. In addition, some detection methods may cause a certain interference or damage to the vacuum system, which affects the normal operation of the system. In order to solve these problems, there is a need for a leak detection apparatus that is more efficient, sensitive and has little impact on the vacuum system. The leak detection device for the vacuum system of the technical scheme has the advantages that the leak detection mechanism of the pump station is fixedly embedded at the rear side of the vacuum pump station, and the leak of the vacuum pump station is rapidly and accurately detected by utilizing the components such as the super-hydrophobic film layer, the infrared liquid level sensor and the like. Disclosure of utility model The utility model aims to provide a technical scheme of a leak detection device for a vacuum system, so as to solve the defects in the background technology. In order to solve the defects and drawbacks described in the background art, the technical scheme comprises the following steps: The vacuum pump station comprises a machine body, a base fixed on the bottom end surface of the machine body, and a vacuum pump fixedly connected to the top surface of the base and positioned in the machine body, wherein a control panel is fixedly connected to the top surface of the machine body, and a plurality of vacuum pipes penetrating to the outside of the machine body are connected to the vacuum conveying end of the vacuum pump; The pump station leak hunting mechanism comprises a test box fixedly connected to the port position at the rear side of the machine body, a super-hydrophobic membrane layer fixedly arranged at the rear side of the inner cavity of the test box, and a baffle fixedly connected to the front side of the inner cavity of the test box, wherein a supporting plate is fixedly connected to the top surface of the baffle. As a preferable scheme of the utility model, the rear end face of the machine body is provided with a notch communicated with the inner cavity of the test box. As a preferable scheme of the utility model, the top end face of the machine body and the bottom end face of the control panel, and the bottom end face of the machine body and the top end face of the base are fixed by screws and sealant. As a preferable scheme of the utility model, a pump station controller is arranged on the side wall of the inner cavity of the machine body, and the four corners of the bottom surface of the base are provided with the organic wheels. As a preferable scheme of the utility model, a plurality of through holes for the vacuum tubes to penetrate are formed on the side wall of the machine body, and sealing rings are fixed in the through holes. As a preferable scheme of the utility model, the front end face of the test box is provided with openings which are in butt joint with the rear side ports of the machine body, and the bottom surface of the test box is fixedly connected with the rear side of the top surface of the base. As a preferable scheme of the utility model, the super-hydrophobic membrane layer divides the inner cavity of the test box into a front part and a rear part, wherein purified water is arranged in the rear part of the inner cavity of the test box, the water draining surface of the super-hydrophobic membrane layer faces the rear side of the inner cavity of the test box, and after the vacuum pump station leaks to generate pressure difference, the purified water is forced to penetrate through the super-hydrophobic membrane layer and enter the front side area of the inner cavity of the test box. As a preferable scheme of the utility model, the height of the partition plate is 1/2 of the whole height of the test box, and an opening for communicating the gas in the vacuum pump station with the front side area of the inner cavity of the test box is arranged between the top surface of the partition plate and the bottom of the inner cavity of the test box. As a preferable scheme of the utility model, the top surface of the test box