Description
Plate heat exchanger has high heat exchange efficiency, the advantages of small area occupation, convenient repair, but because of its sealing pad heat-resistant temperature is limited, can not adapt to the high temperature steam. When the saturated steam pressure higher than 0.2Mpa, the temperature is above 130 degrees Celsius, gasket aging speed, the gradual deformation hardening, loss of elasticity, caused by the plate heat exchanger leakage.
Tube type heat exchanger has the advantages of high pressure, high temperature performance, but the drawback is that the heat transfer efficiency is low, covers an area of large, bulky, inconvenient repair. Steam - water heat exchanger is a combination of the advantages of the two, a heat exchanger to avoid the disadvantages of combination, which is in the upper plate heat exchanger attached a pipe type small heat exchanger, steam to enter the tube type heat exchanger, outflow before entering the heat exchanger, the steam passes through the heat exchanger temperature and pressure will drop angle range, the temperature and the pressure is suitable for plate heat exchanger, thus protecting plate heat exchanger, and can play the advantages of plate heat exchanger. The steam - water heat exchanger suitable pressure is 0.1-0.8MPa, temperature 120-180 ℃ steam heat exchanger.
Steam - water heat exchanger is mainly applied to steam as the heating medium heat residential areas, hotels and enterprises and institutions of the heating, bathing, industrial water and other fields, but this kind of heat exchanger is not confined to the heating water, can also be used to heat the other medium. It has the advantages of compact structure, small occupation area, high heat efficiency, convenient repair.
Pipe type steam - water heat exchanger and plate heat exchanger usually assembled into single process, heat exchanger can adopt BR type, can also be used BRB type, usually hanging. The glial seal gasket for plate heat exchanger for ethylene propylene rubber.