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Solve the aging of plate heat exchanger
Source: Time: 2020-11-17 19:00:18 Hit:
Plate heat exchangers often experience gradual wear and aging after a period of use. So how should we solve the aging phenomenon of plate heat exchangers?
Temporary treatment of aging of plate heat exchanger gaskets: The hardening of elastic gaskets has nothing to do with pressure and temperature. When the gasket is elastic, the plate heat exchanger will drip. In some products, in order to deal with the dripping caused by the aging of the gasket, it is allowed to suspend the scheduling of the sealing function of the heat exchanger, that is, to re-tighten the bolts of the combined plate heat exchanger, and to schedule the compression force of the elastic gasket between the heat exchangers to deal with Dripping results.
For plate heat exchangers in the stress scheduling field not given in the nameplate, the stress value is generally given in the complete machine diagram. When tightening this type of plate heat exchanger, the tightening torque should not be lower than the value specified in the drawing, because it has nothing to do with the assembly quality and deformation of the plate heat exchanger. When the tightening torque reaches the specified value, you can stop the conversion of the elastic gasket in a planned way. For plate heat exchangers used in harsh production equipment and corrosive media, a set of backup seals is recommended. When the warehouse temperature is 18 degrees, the seal of the plate heat exchanger can be stored in a transparent plastic package for 3 years.
The maximum and minimum allowable stress are usually given on the nameplate of the plate heat exchanger with this function. For new plate heat exchangers, the minimum allowable stress should be used to stop the connection. According to the number of plate heat exchangers in each group, the tightening force of the plate heat exchangers can be adjusted one or more times. The nut can be screwed out by 3 mm each time it is tightened. Pay attention to the stress of the adjusting plate during the tightening process. In addition, only heat exchangers without task pressure are allowed.
The sealing strength of the plate heat exchanger. In principle, the sealing strength can be divided into two types: bonding strength and non-bonding strength. The shape of the gasket does not match the shape of the sealing part of the plate heat exchanger and should be discarded. It must be pointed out that the bonding strength method will not have any effect on the sealing function.
The aging problem of plate heat exchangers is inevitable. Yojo, a leading plate heat exchanger manufacturer in China, proposes some temporary solutions for you. For the aging of plate heat exchangers, it is necessary to replace new heat exchanger equipment as soon as possible for the safe operation of the equipment. , Yojo has been committed to the production of plate heat exchangers for many years, looking forward to your arrival.
tag: Plate heat exchanger aging, heat exchanger equipment, Chinese plate heat exchanger manufacturer, plate heat exchanger production
