The types of heat exchangers have?
A, according to the principle of classification: 1, direct contact heat exchanger The main working principle of this kind of heat exchanger are two medium by contact and mutual transmit heat, heat transfer, contact area directly affect the heat transfer, this kind of heat exchanger is usually a medium is gas, another is liquid, mainly tower equipment as the main body of the heat transfer equipment, but usually involves the mass transfer, so it is difficult to distinguish the relationship with columns, usually under centralized for tower equipment, power plant with cooling tower is the most typical direct contact heat exchanger. 2, energy storage heat exchanger (hereinafter referred to as the accumulator, the dosage is very few, this kind of heat exchanger is hot medium by heating a solid substance first after reaching a certain temperature, cold medium through solid matter is heated, to reach the purpose of the heat transfer. 3, recuperative heat exchanger Dosage is very large, this kind of heat exchanger accounted for more than 99% of the total, the principle is the hot medium of heat transfer over a metal or non-metal cooling medium, we usually referred to as this kind of heat exchanger tube and shell or plate, plate type, fin type heat exchanger.
?the classification of the non-metallic materials heat exchanger (1) graphite heat exchanger (2) the fluorine plastic heat exchanger (3) ceramic fiber composite heat exchanger (4) glass steel heat exchanger
according to heat transfer type classification 1, no phase change heat transfer Generally divided into heater and cooler. 2, with phase change heat transfer Generally divided into condenser and reboiler. Reboiler is divided into kettle reboiler, siphon reboiler, reboiler, evaporator, the steam generator and waste heat boiler.
