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Replacement steps and precautions for sealing gasket of plate heat exchanger
Release time:
2022-06-27
The sealing gasket of plate heat exchanger is made of synthetic rubber and natural rubber. First, in terms of composition, natural rubber is made from plants that produce natural rubber.
The sealing gasket of plate heat exchanger is an important part of the heat exchanger. The application scope and service life of plate heat exchanger are also restricted by the sealing gasket to a certain extent. If there is a problem with the use of gaskets, the plate heat exchanger will not work properly. The sealing gasket of the plate heat exchanger can not only seal the medium in the heat exchanger, prevent the medium from leaking out, but also prevent the heat exchange medium from entering in series. Therefore, when the gasket of the plate heat exchanger has leakage, aging, fracture, hardening and other problems, it needs to be replaced in time with the correct method. Improper operation will lead to the leakage of the heat exchanger. Then, let's learn the replacement steps and precautions of the sealing gasket of the lower plate heat exchanger!
1. Change order of sealing gasket of plate heat exchanger
1) Remove the waste gasket and take care not to damage the sealing gasket groove when disassembling.
2) Remove the glue residue in the gasket groove with methyl ethyl ketone or other ketone solvent.
3) Clean the washer groove and washer with a clean cloth or rag.
4) Apply the adhesive evenly in the gasket groove.
5) Affix clean new gasket to the plate.
6) The base plate with gasket shall be placed in a flat, cool and well-ventilated place and then installed and used after natural drying.
2. Precautions for sealing gasket of plate heat exchanger
1) Apply fluorescent reagent on each heat exchanger plate, irradiate it with ultraviolet light to check whether there are small cracks or corrosion holes, and clean it again. In addition, focus on checking the condition of the sealing groove and repair it as needed.
2) Check the bonding position and quality of the sealing gasket of each plate heat exchanger, and carefully assemble the complete set of plates after classification according to the installation sequence.
3) After the sealing gasket of the plate heat exchanger is cleaned, use the high-pressure purging device to remove the residual cleaning agent on the surface of the plate heat exchanger.
4) Recycling performance test and inspection. When rust is suspected, check the wall thickness of heat exchanger and pipeline.
5) Remove the aged and damaged gaskets of the plate heat exchanger, and use appropriate cleaning methods according to the dirt.
The sealing gasket of plate heat exchanger is made of synthetic rubber and natural rubber. First, in terms of composition, natural rubber is made from plants that produce natural rubber. That is to say, latex directly produced from rubber trees is directly extracted. Synthetic rubber is a synthetic high elastic polymer, also known as synthetic elastomer. Different kinds of rubber are synthesized from different raw materials. Natural rubber has high elasticity at room temperature, but strong chemical reaction. It is difficult to apply in high temperature production line due to light and heat aging. The basic properties of synthetic rubber are artificial addition of vulcanization and other production technologies to alleviate aging, with high elasticity, insulation, oil resistance, high temperature resistance, etc. These properties are the source of the performance of the sealing gasket of the plate heat exchanger.
The above is the replacement steps and precautions for the sealing gasket of the plate heat exchanger. If you need more information, please contact us at any time!
