⑵ heat pump evaporator and condenser of the unit. The heat pump is widely used in air conditioning systems and heat recovery systems for critical devices, these applications place on the heat pump to the following requirements: light weight, small size (assembly technology), good pressure resistance, good low temperature performance and high sealing properties. Shell and tube heat exchanger used in the past is difficult to meet those requirements. Suzhou Pacific heat exchanger QH brazed plate heat exchanger can not only save the space of the heat pump can reduce the cost of refrigerants and refrigerant leakage, so a lot of heat pump units use it as an evaporator and condenser . In addition to using them as energy-saving and oil cooler. Absorption chillers also use it as the solution heat exchanger.
(3) In the paper, food, alcohol, evaporation and concentration process, due to the side of the process containing fibers, particles, or high viscosity media, so the requirements of the circulation section of the large channel. The shortcomings of the past but to use the shell and tube heat exchanger, but frequent cleaning and difficult to clean clogged after, prompting the industry to develop a new type of heat exchanger. Suzhou Pacific heat exchanger production of all-welded plate heat exchanger and a detachable type of KNB, KBB type plate heat exchanger the plate equivalent diameter of about 28mm, suitable for fluids containing fibers, particles. Has been widely used in the above process, including black liquor concentration device has become stereotyped products.
(4) oil refining industry of catalytic reforming unit, shell heat exchanger used in the heat recovery gas thermoelectric Cooling Supply, all-welded plate air preheaters, and all-welded plate province, etc., have been largely replaced the tube shell heat exchanger.
⑸ in industrial sulfuric acid, alkali industry, oil refining industry in the cooling process, the plate cooler has been replaced by a shell and tube heat exchanger.