Heat exchanger pressure maintaining test tool

Abstract

The utility model provides a pressure maintaining test tool for a heat exchanger. The heat exchanger pressure maintaining test tool comprises a sealing tank, the top of the sealing tank is fixedly connected with a display column, the front face of the display column is provided with an observation window, the interior of the display column is slidably connected with a pressure plate, the top of the pressure plate is fixedly connected with a spring, the top of the display column is provided with a lifting hole, and the top of the lifting hole is provided with a pressure sensor. A rubber ring is fixedly connected to the lifting hole, a conical rod is slidably connected to the interior of the lifting hole, a limiting disc is fixedly connected to the top of the conical rod, and an observation plate is fixedly connected to the bottom of the conical rod. The heat exchanger pressure maintaining test tool provided by the utility model has the effects of improving the application range of the tool and improving the test efficiency.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a pressure-holding test tooling for heat exchangers. Background Technique

[0002] The pressure-holding test tooling for heat exchangers is a device specifically used for conducting pressure-holding tests on heat exchangers. Its function is to simulate the pressure conditions of heat exchangers in actual working environments. By maintaining a certain pressure for a period of time, it is used to test whether the pressure resistance and sealing performance of heat exchangers meet the requirements, so as to promptly detect possible leaks or other defects and ensure the quality and reliability of heat exchangers. However, there are certain defects in the existing technology in practical applications.

[0003] First of all, the observation of whether there is air leakage at the connection of the heat exchanger is not obvious enough. Some existing observation mechanisms often rely on electric drive. This not only increases the complexity and cost of the device, but also limits its use in certain specific environments, such as occasions where there is a lack of power supply or potential electrical safety hazards. When facing heat exchanger joints with different apertures, it is very difficult for existing test devices to be generally applicable. It is often necessary to equip special tooling for different apertures to ensure the airtightness of the device during operation, which undoubtedly increases the cost and the complexity of operation.

[0004] Therefore, it is necessary to provide a pressure-holding test tooling for heat exchangers to solve the above technical problems. Content of the Utility Model

[0005] The utility model provides a pressure-holding test tooling for heat exchangers, which solves the problems that the observation mechanism of the existing test tooling depends on electricity and different apertures of heat exchanger joints need to be replaced to ensure the airtightness of the device during operation.

[0006] To solve the above technical problems, a pressure-holding test tooling for heat exchangers provided by the utility model includes: a sealing tank, a display column is fixedly connected to the top of the sealing tank, an observation window is opened on the front of the display column, a pressure plate is slidably connected inside the display column, a spring is fixedly connected to the top of the pressure plate, a lifting hole is opened at the top of the display column, a rubber ring is fixedly connected to the lifting hole, a tapered rod is slidably connected inside the lifting hole, a limiting disk is fixedly connected to the top of the tapered rod, and an observation plate is fixedly connected to the bottom of the tapered rod.

[0007] Preferably, two restraint plates are fixedly connected to the sealing tank, a restraint rod is slidably connected to the restraint plates, a limiting plate is fixedly connected to one end of the restraint rod, a close-fitting plate is fixedly connected to the other end of the restraint rod, a magnetic attraction ring is fixedly connected to one side of the close-fitting plate, a threaded ring is fixedly connected to the other side of the close-fitting plate, a penetration hole is opened on the close-fitting plate, fastening threads are opened on the surface of the sealing tank, and a fastening ring is threadedly connected to the outer surface of the sealing tank, and anti-slip edges are arranged on the surface of the fastening ring.

[0008] Preferably, a multi-stage connector is installed on the left side of the sealed tank, a socket joint is fixedly connected to the right side of the sealed tank, and a connecting sleeve is sleeved on the socket joint.

[0009] Preferably, an air pipe is fixedly connected to the connecting sleeve, the other end of the air pipe is fixedly connected to an air pump, and a filter is installed on the air pump.

[0010] Preferably, a connecting wire is fixedly connected to the air pump, the other end of the connecting wire is fixedly connected to a control board, a display screen is installed on the control board, and control buttons are arranged on the control board.

[0011] Preferably, the control board is electrically connected to the air pump, and the control buttons are electrically connected to the display screen.

[0012] Compared with the related art, a pressure-holding test tool for a heat exchanger provided by the present utility model has the following

[0013] Beneficial effects:

[0014] This tool makes the observation of air leakage at the connection of the heat exchanger more obvious, greatly reducing the possibility of missed detection. Moreover, the observation mechanism does not require electric drive, enabling the tool to be used smoothly in various environments, whether it is a conventional production site or some special areas with unstable or limited power supply. It will not be affected by power problems in carrying out the detection work, providing a wider application scenario and greater flexibility for the quality detection of heat exchangers. At the same time, this test device can maintain tightness under different heat exchanger joint apertures, greatly improving the versatility and applicability of the tool. Enterprises do not need to equip various specific tools for heat exchangers with different apertures, reducing the purchase cost and management difficulty of the tools. It can play a role in the production and detection of various specifications of heat exchangers, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of a pressure-holding test tool for a heat exchanger provided by the present utility model;

[0016] Figure 2 For Figure 1 The left view schematic diagram of the pressure-holding test tool for the heat exchanger shown;

[0017] Figure 3 For Figure 1 The enlarged schematic diagram of part A shown;

[0018] Figure 4 For Figure 1 The enlarged schematic diagram of part B shown.

[0019] Reference numerals in the figure: 1, sealed tank; 2, display column; 3, observation window; 4, pressure plate; 5, spring; 6, lifting hole; 7, rubber ring; 8, tapered rod; 9, limiting disc; 10, observation plate; 11, restraint plate; 12, restraint rod; 13, limiting plate; 14, close-fitting plate; 15, through hole; 16, magnetic attraction ring; 17, fastening thread; 18, fastening ring; 19, anti-slip rib; 20, multi-stage connector; 21, threaded ring; 22, socket joint; 23, connecting sleeve; 24, air pipe; 25, air pump; 26, filter; 27, connecting wire; 28, control board; 29, display screen; 30, control button. Detailed implementation manner

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and the implementation manner.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of a pressure-holding test tool for a heat exchanger provided by the present utility model; Figure 2 is Figure 1 a left view schematic diagram of the pressure-holding test tool for the heat exchanger shown in Figure 3 is Figure 1 a magnified schematic diagram of part A shown in Figure 4 is Figure 1 a magnified schematic diagram of part B shown in . A pressure-holding test tool for a heat exchanger includes: a sealed tank 1, a display column 2 is fixedly connected to the top of the sealed tank 1, an observation window 3 is opened on the front of the display column 2, a pressure plate 4 is slidably connected inside the display column 2, a spring 5 is fixedly connected to the top of the pressure plate 4, a lifting hole 6 is opened on the top of the display column 2, a rubber ring 7 is fixedly connected to the lifting hole 6, a tapered rod 8 is slidably connected inside the lifting hole 6, a limiting disc 9 is fixedly connected to the top of the tapered rod 8, an observation plate 10 is fixedly connected to the bottom of the tapered rod 8. This tool makes the observation of the air leakage situation at the connection of the heat exchanger more obvious, greatly reduces the possibility of missed inspection, and the observation mechanism does not require electric drive, which enables the tool to be used smoothly in various environments, whether it is a conventional production site or some special areas with unstable or limited power supply. The detection work will not be affected by power problems.

[0022] Two restraint plates 11 are fixedly connected to the sealed tank 1. A restraint rod 12 is slidably connected to the restraint plate 11. One end of the restraint rod 12 is fixedly connected to a limiting plate 13, and the other end of the restraint rod 12 is fixedly connected to a close-fitting plate 14. A magnetic attraction ring 16 is fixedly connected to one side of the close-fitting plate 14, and a threaded ring 21 is fixedly connected to the other side of the close-fitting plate 14. A through hole 15 is formed in the close-fitting plate 14, and a fastening thread 17 is formed on the surface of the sealed tank 1. A fastening ring 18 is threadedly connected to the outer surface of the sealed tank 1, and an anti-slip rib 19 is arranged on the surface of the fastening ring 18. After the test device is sleeved on the connection part of the heat exchanger, the close-fitting plate 14 closely adheres to the surface of the heat exchanger. The magnetic attraction ring 16 on the back of the close-fitting plate 14 attracts the metal shell of the heat absorber, and then the fastening ring 18 is rotated. Threads are formed on the inner surface of the fastening ring 18. Through the threaded ring 21 and the fastening thread 17, the sealed tank 1 and the close-fitting plate 14 slowly approach, and finally the sealed tank 1 and the connection part of the heat exchanger are tightly adhered for sealing, so that the test device can maintain the sealing performance for interfaces of any aperture.

[0023] A multi-stage connector 20 is installed on the left side of the sealed tank 1, and a socket joint 22 is fixedly connected to the right side of the sealed tank 1. A connecting sleeve 23 is sleeved on the socket joint 22. The multi-stage connector 20 can be adapted to connection parts of heat exchangers with more types of apertures.

[0024] An air pipe 24 is fixedly connected to the connecting sleeve 23, and the other end of the air pipe 24 is fixedly connected to an air pump 25. A filter 26 is installed on the air pump 25. Air can be filled into the sealed tank 1 through the air pump 25, and the filter 26 can ensure that impurities in the air are filtered out when inhaling air.

[0025] A connecting wire 27 is fixedly connected to the air pump 25, and the other end of the connecting wire 27 is fixedly connected to a control board 28. A display screen 29 is installed on the control board 28, and a control button 30 is arranged on the control board 28. The control board 28 can control the opening and closing of the air pump 25 through electrical connection.

[0026] The control board 28 is electrically connected to the air pump 25, and the control button 30 is electrically connected to the display screen 29. A pressure sensor is installed inside the sealed tank 1, and the display screen 29 can display the pressure inside the sealed tank 1.

[0027] The working principle of a heat exchanger pressure-holding test tooling provided by the present utility model is as follows:

[0028] After installing this test work at the heat exchanger interface, after injecting gas into the sealed tank 1, the pressure plate 4 inside the display column 2 is pushed upward, the spring 5 is compressed, and then the tapered rod 8 is driven to move upward. If there is air leakage at the interface, the pressure plate 4 will move downward due to the influence of the spring 5, and the tapered rod 8 will stay in place due to being squeezed by the rubber ring 7. Observe whether the observation plate 10 is separated from the pressure plate 4. The observer only needs to observe whether the observation plate 10 is separated from the pressure plate 4 to confirm whether the seal of the heat exchanger interface is qualified. This observation mechanism does not require electric drive, which enables the tooling to be used smoothly in various environments.

[0029] Compared with the related technology, a pressure-holding test tooling for a heat exchanger provided by the present utility model has the following

[0030] Beneficial effects:

[0031] This tooling makes the observation of air leakage at the connection of the heat exchanger more obvious, greatly reducing the possibility of missed inspections. And the observation mechanism does not require electric drive, which enables the tooling to be used smoothly in various environments, whether it is a conventional production site or some special areas with unstable or limited power supply. It will not affect the progress of the detection work due to power problems, providing a wider application scenario and greater flexibility for the quality inspection of heat exchangers. At the same time, this test device can maintain the seal at different heat exchanger joint apertures, which greatly improves the versatility and applicability of the tooling. Enterprises do not need to equip multiple specific toolings for heat exchangers with different apertures, reducing the purchase cost and management difficulty of the tooling. It can play a role in the production and detection of various different specifications of heat exchangers, improving production efficiency.

[0032] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A heat exchanger pressure test tool, characterized in that: include: A sealed tank, wherein a display column is fixedly connected to the top of the sealed tank, an observation window is provided on the front of the display column, a pressure plate is slidably connected to the inside of the display column, a spring is fixedly connected to the top of the pressure plate, a lifting hole is provided on the top of the display column, a rubber ring is fixedly connected to the lifting hole, a cone rod is slidably connected to the inside of the lifting hole, a limiting disk is fixedly connected to the top of the cone rod, and an observation plate is fixedly connected to the bottom of the cone rod.

2. A heat exchanger pressure test fixture according to claim 1, characterized in that: Two constraint plates are fixedly connected to the sealing tank, and a constraint rod is slidably connected to the constraint plate. One end of the constraint rod is fixedly connected to a limit plate, and the other end of the constraint rod is fixedly connected to a close contact plate. One side of the close contact plate is fixedly connected to a magnetic ring, and the other side of the close contact plate is fixedly connected to a threaded ring. A penetration hole is provided on the close contact plate, a fastening thread is provided on the surface of the sealing tank, a fastening ring is threadedly connected to the outer surface of the sealing tank, and an anti-slip edge is provided on the surface of the fastening ring.

3. A heat exchanger pressure test fixture according to claim 1, characterized in that: A multi-stage connector is installed on the left side of the sealing tank, and a sleeve connector is fixedly connected to the right side of the sealing tank, and a connecting sleeve is sleeved on the sleeve connector.

4. A heat exchanger pressure test fixture according to claim 3, characterized in that: The connecting sleeve is fixedly connected with an air pipe, the other end of the air pipe is fixedly connected with an air pump, and a filter is installed on the air pump.

5. A heat exchanger pressure test fixture according to claim 4, characterized in that: A connecting wire is fixedly connected to the air pump, and the other end of the connecting wire is fixedly connected to a control board. A display screen is installed on the control board, and a control button is arranged on the control board.

6. A heat exchanger pressure test fixture according to claim 5, characterized in that: The control panel is electrically connected to the air pump, and the control button is electrically connected to the display screen.

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