Heat exchange sheet leak detection device

Abstract

The utility model relates to a heat exchange sheet leak detection device, which belongs to the technical field of heat exchange sheet detection, and comprises a sealed cabin, the sealed cabin is a box body with an opening at the top, the sealed cabin is connected with a pressure plate, the pressure plate can be turned over, and one side of the sealed cabin is also provided with a pressure gas interface; according to the leakage detection device for the heat exchange sheet, the heat exchange sheet is fixed through the pressing plate and the sealed cabin, pressure gas is applied to the sealed cabin, whether the heat exchange sheet has a leakage point or not is judged by detecting air pressure change, and when the heat exchange sheet has the leakage point, soapy water is sprayed on the surface of the heat exchange sheet, so that the leakage point can be quickly found out, and the leakage point can be conveniently repaired; the device is reliable in detection, prevents unqualified products from flowing into the subsequent process, reduces the defective product rate of the heat exchange sheets, simplifies the detection method, saves the labor cost, improves the detection efficiency, can achieve the feeding and discharging of the heat exchange sheets through an automatic movement module, can spray soapy water to the defective heat exchange sheets through a PLC system, and improves the detection efficiency. And assembly line work is realized.

Description

Technical Field

[0001] The utility model relates to a heat exchange plate leakage detection device, belonging to the technical field of heat exchange plate detection. Background Art

[0002] During the production process of heat exchangers, it is necessary to check for leaks. Generally, simple inspections are performed by visual inspection of the appearance, which is time-consuming and labor-intensive, and small leaks are difficult to detect. Even with the use of visual inspection equipment, the yield rate of the product cannot be effectively guaranteed. It is even more difficult to detect the damaged points on the heat exchanger that are about to break, resulting in the failure of the entire heat exchanger after assembly, causing waste. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a heat exchanger plate leak detection device, which can effectively detect small leaks and damaged points that are about to break of the heat exchanger plate, avoid unqualified products from flowing into the next process, and improve the product yield.

[0004] The heat exchanger plate leak detection device described in the utility model comprises a sealed cabin, which is a box body with an open top. The sealed cabin is connected to a pressure plate, which can be turned over. A pressure gas interface is also provided on one side of the sealed cabin. The heat exchanger plate to be detected is placed above the sealed cabin, and the pressure plate is turned over to cover the heat exchanger plate, so that a sealed area can be formed between the heat exchanger plate and the sealed cabin.

[0005] The technical solution of the utility model is to provide a heat exchanger plate leak detection device. When in use, the heat exchanger plate is placed above the sealed cabin, and the pressure plate is flipped to cover the heat exchanger plate to form a sealed area between the heat exchanger plate and the sealed cabin. Pressurized gas is introduced into the sealed area through the pressure gas interface to detect pressure changes. If the air pressure is qualified, the heat exchanger plate does not need to be subjected to detailed and tedious visual inspection. If the air pressure is abnormal, the heat exchanger plate is abnormal, and soapy water is needed to cooperate with the abnormal heat exchanger plate to detect and repair leaks.

[0006] Preferably, the sealed cabin is rotatably connected to the pressure plate via a hinge, and the pressure plate is a rectangular frame structure.

[0007] Furthermore, a rotating cylinder is provided on one side of the sealed cabin, and the rotating cylinder is connected to the pressure plate through a swing rod, and the swing rod can drive the pressure plate to rotate around the hinge.

[0008] Furthermore, the front and rear edges of the sealing cabin are provided with bosses, and the front and rear edges of the pressure plate are provided with grooves. The shapes of the sealing cabin bosses and the pressure plate grooves are compatible with the shapes of the front and rear ends of the heat exchanger, so the heat exchanger can be positioned.

[0009] Preferably, the sealing cabin and the rotating cylinder are both fixed on a workbench.

[0010] The sealed cabin is also provided with an air pressure detection device. When the air pressure changes beyond a specified range, the air pressure detection device sounds an alarm to remind the staff to spray soapy water on the surface of the heat exchanger plate in order to find the leak and repair it.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The heat exchanger plate leak detection device described in the utility model fixes the heat exchanger plate by means of a pressure plate and a sealing cabin, applies pressurized gas in the sealing cabin, and determines whether the heat exchanger plate has a leak by detecting the change in air pressure. When a leak exists in the heat exchanger plate, soapy water is sprayed on the surface of the heat exchanger plate to quickly find the leak so as to repair the leak. The utility model has reliable detection, avoids unqualified products from flowing into the subsequent process, reduces the defective product rate of the heat exchanger plate, simplifies the detection method, saves labor costs, and improves the detection efficiency. At the same time, the loading and unloading of the heat exchanger plate can be realized by an automated motion module, and the spraying of soapy water on the defective heat exchanger plate can be integrated into the device through a PLC system to realize assembly line operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the state of the utility model before the heat exchange plate is tested;

[0015] Figure 3 It is a schematic diagram of the state of the utility model during the heat exchange plate detection process.

[0016] In the figure: 1. pressure plate; 11. groove; 2. rotating cylinder; 21. swing rod; 3. sealing cabin; 31. boss; 4. workbench; 5. pressure gas interface; 6. heat exchange plate. DETAILED DESCRIPTION

[0017] like Figure 1-3 As shown, this embodiment is implemented through the following technical solutions: it includes a sealed cabin 3, the sealed cabin 3 is a box body with an opening on the top, the sealed cabin 3 is connected to a pressure plate 1, the pressure plate 1 can be flipped, and a pressure gas interface 5 is also provided on one side of the sealed cabin 3; the heat exchange plate 6 to be tested is placed above the sealed cabin 3, and the pressure plate 1 is flipped to cover the heat exchange plate 6, so that a sealed area can be formed between the heat exchange plate 6 and the sealed cabin 3.

[0018] In this embodiment, the sealing cabin 3 is rotatably connected to the pressure plate 1 through a hinge, and the pressure plate 1 is a rectangular frame structure; a rotating cylinder 2 is provided on one side of the sealing cabin 3, and the rotating cylinder 2 is connected to the pressure plate 1 through a swing rod 21, and the swing rod 21 can drive the pressure plate 1 to rotate around the hinge; the front and rear ends of the sealing cabin 3 are provided with bosses 31, and the front and rear ends of the pressure plate 1 are provided with grooves 11. The shape of the sealing cabin boss 31 and the shape of the pressure plate groove 11 are both compatible with the shape of the front and rear ends of the heat exchange plate 6, so as to position the heat exchange plate 6; the contact part between the sealing cabin 3 and the heat exchange plate 6 is a soft material. After the pressure plate 1 is pressed, the soft material can be deformed to seal the heat exchange plate 6 and the edge of the sealing cabin 3, so that a sealing area is formed between the two.

[0019] The sealed cabin 3 and the rotating cylinder 2 are both fixed on the workbench 4. The sealed cabin 3 is also provided with an air pressure detection device for detecting air pressure changes; when the air pressure changes exceed a specified range, the air pressure detection device sounds an alarm to remind the staff to spray soapy water on the surface of the heat exchange plate 6 to find the leak.

[0020] The working process of the utility model is:

[0021] Place the heat exchanger 6 above the sealed cabin 3, flip the pressure plate 1 to cover the heat exchanger 6, so that a sealed area is formed between the heat exchanger 6 and the sealed cabin 3, and introduce pressurized gas into the sealed area through the pressure gas interface 5 to detect the pressure change. If the air pressure is qualified, the heat exchanger 6 does not need to be visually inspected in detail; if the air pressure is abnormal, the heat exchanger 6 is abnormal, and soapy water is needed to check and repair the abnormal heat exchanger for leaks. The loading and unloading of the heat exchanger 6 can be achieved through the automated motion module, and the spraying of soapy water on the defective heat exchanger can be integrated into this device through the PLC system to achieve assembly line operation.

[0022] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A heat exchanger fin leak detection device, characterized in that: The sealed cabin (3) is a box body with an opening at the top. The sealed cabin (3) is connected to a pressure plate (1). The pressure plate (1) is flippable and has a rectangular frame structure. A pressure gas interface (5) is also provided on one side of the sealed cabin (3).

2. The heat exchanger fin leak detection device according to claim 1, characterized in that: The sealed cabin (3) is rotatably connected to the pressure plate (1) via a hinge.

3. The heat exchanger fin leak detection device according to claim 2, characterized in that: A rotating cylinder (2) is provided on one side of the sealed cabin (3). The rotating cylinder (2) is connected to the pressing plate (1) via a swing rod (21). The swing rod (21) can drive the pressing plate (1) to rotate around the hinge.

4. The heat exchanger fin leak detection device according to claim 3, characterized in that: The sealing cabin (3) is provided with bosses (31) at the front and rear ends, and the pressure plate (1) is provided with grooves (11) at the front and rear ends. The shapes of the sealing cabin bosses (31) and the pressure plate grooves (11) are compatible with the shapes of the front and rear ends of the heat exchange plate (6), so that the heat exchange plate (6) can be positioned.

5. The heat exchanger fin leak detection device according to claim 3, characterized in that: The sealed cabin (3) and the rotating cylinder (2) are both fixed on a workbench (4).

6. The heat exchanger fin leak detection device according to claim 1, characterized in that: The sealed cabin (3) is also provided with an air pressure detection device for detecting air pressure changes.

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