Plate heat exchanger gasket is a very important part of the plate heat exchanger, used to prevent leakage between heat exchanger plates and ensure the efficiency of heat exchange. This article will introduce the types, selection and use of plate heat exchanger gasket.
First, the types of plate heat exchanger gaskets plate heat exchanger gaskets are mainly the following types:
Rubber gasket: rubber gasket has good elasticity and sealing performance, suitable for low-pressure and low-temperature occasions.
Asbestos rubber gasket: asbestos rubber gasket is made of asbestos and rubber, is suitable for medium-pressure and low-temperature occasions.
Polyethylene gaskets: Polyethylene gaskets have good corrosion resistance and sealing performance, suitable for medium pressure and high-temperature occasions.
Metal-coated gaskets: metal-coated gaskets are made of sheet metal and asbestos rubber, suitable for high-pressure and high-temperature occasions.
Second, the choice of plate heat exchanger gasket
In the selection of plate heat exchanger gasket, need to consider the following factors:
Operating temperature: the gasket can withstand the temperature should be matched with the operating temperature of the heat exchanger.
Working pressure: the gasket should have sufficient strength and sealing performance to withstand the working pressure of the heat exchanger.
Material: The material of the gasket should be compatible with the fluid inside the heat exchanger to avoid corrosion and leakage.
Cost: under the premise of meeting the performance requirements, the gasket should be selected at a lower cost.
Third, the use of plate heat exchanger gasket
In the use of plate heat exchanger gasket, need to pay attention to the following points:
When installing the gasket, it should be ensured that its contact with the heat exchanger plate is flat to avoid gaps and leakage.
Regularly check the use of gaskets and replace them in time when damage and aging are found.
When dismantling the heat exchanger, damage to the gasket should be avoided so as not to affect the re-use.
In short, the selection and use of plate heat exchanger gaskets to ensure the normal operation of the heat exchanger and extend the service life is of great significance. In the actual application, according to the specific working conditions and requirements, select the appropriate gasket, and reasonable use and maintenance.
