Leak detection device for water boiling heating container and leak detection method thereof

Abstract

The invention discloses a leak detection device for a water boiling heating container and a leak detection method thereof. The device comprises a positioning tool for placing the water boiling heating container, a vacuum gauge and a vacuum evacuation means for evacuating the water boiling heating vessel. Each sealing hole of the water boiling and heating container is sequentially provided with a sucker, a compression spring and a blocking plate, one end of the compression spring abuts against the sucker, and the other end of the compression spring abuts against the blocking plate. The device and the method detect the airtightness of the water boiling heating container by evacuating the inside of the water boiling heating container, and the detection reliability is improved.

Description

technical field [0001] The invention relates to a leak detection device and a leak detection method for a boiling water heating container. Background technique [0002] In the actual production process of the boiling water heating container, it needs to be tested for air tightness. At present, in the industry, the hardware cup body is usually placed on the positioning tool, and a relatively large external force is used. Usually, the cylinder pushes the sealing body to seal the sealing hole of the boiling water heating container. The compressed air is passed into the external boiling water heating container, and the standard is generally 0.1MPa. Then keep the pressure for a few seconds, and check the range of pressure changes by connecting the equipment inside the boiling water heating container to determine whether the boiling water heating container is well airtight. But this detection method has the following disadvantages: 1. It is necessary to use a large external forc...

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Problems solved by technology

But this detection method has the following disadvantages: 1. It is necessary to use a large external force to seal the container, especially the sealing hole, which can easily cause the deformation of the boiling water heating container cup body and affect the appearance; 2. The boiling water heating container cup body It is connected with the aluminum plate and heat pipe on the cup body by brazing. Usually, external force acts on the cup body of the boiling water heating container, and the cup body of the boiling water heating container is deformed by a large external force, which may easily lead to cracking of the aluminum plate and the bottom of the cup body, and the cup body The material is different from the aluminum plate, the modulus of elasticity is different, and the deformation degree is different after being subjected to a large force, which will damage the welding layer and cause the cup body to separate from the aluminum plate and aluminum tube; 3. During the forming process of the cup body of the boiling water heating container, according to different processes, There are direct circular sheet stretching and tube stretching. The bottom of the tube stretching process needs to be argon-welded with a circular sheet. During the airtightness process, there is an external force to compact the weld seam, so that the tiny defects that may exist in the original weld seam are covered up, which affects the airtightness result; 4. The structure of the leak detection device is complex, and the location requires a gas source

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