The softening of the plate type heat exchanger's elastic gasket is related to pressure and temperature. When the gasket loses its elasticity, the heat exchanger will leak.
In the gasket type plate heat exchanger, in order to solve the leakage phenomenon caused by the aging of the gasket, the sealing performance of the heat exchanger is allowed to be adjusted, that is, the bolts of the combined plate heat exchanger are tightened again to adjust the temperature The pressing force of the elastic sealing pad solves the problem of dripping. On the nameplate of a heat exchanger with this function, the maximum clamping value and the smaller clamping value are generally given. For new heat exchanger plate groups, the larger allowable clamping value should be used for connection fixing.
Depending on the number of heat exchanger plates in each group, the tightening force of the heat exchanger can be adjusted one or more times. Each time you tighten, you can screw the nut into 3mm, and always pay attention to the stress of the adjustment plates during tightening, It is only allowed to adjust the tightening force of the heat exchanger without working pressure at room temperature to prevent dripping.
For plate heat exchangers whose stress adjustment range is not given on the nameplate, the clamping value is generally given in the parts drawing. When tightening such plate heat exchangers, the tightening torque should not be lower than the value specified in the drawing in any case. Because it is related to the assembly quality and assembly deformation of the plate heat exchanger. When the tightening torque reaches the required value, the elastic gasket can be replaced in a planned way. For plate heat exchangers used in critical production equipment and corrosive media, a spare set of seals is recommended. When the warehouse temperature is 18 ° C, the seal of the plate heat exchanger can be stored in transparent plastic packaging for about 3 years.
Fixation of seals: In principle, the fixation of seals is divided into two categories: adhesive and non-adhesive. The shape of the gasket should be consistent with the shape of the seal of the plate heat exchanger. It must be pointed out that the adhesive fixing method does not have any effect on the sealing function.
For more information, please Baidu: Taylor Plate Heat Exchanger
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