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在寒冷的冬季,所有工业企业和民用建筑物的排气系统的排气温度都远高于室外气温,一些大型商场、剧院和厂房的排气量很大,所含的热量也较多,用这些排气对进气进行加热,可以回收排气中的热量。在各类建筑物的暖通空调系统中合理利用排气中的热量,具有较大的经济意义。 基本类型 从排气中回收热量可在不同结构系统的热回收器中进行。目前所使用的排气热回收器大致有以下几种:(1)转轮式热回收器(又称热轮);(2)板式热回收器;(3)
In the cold winter, the exhaust temperatures of exhaust systems of all industrial enterprises and civil buildings are much higher than the outdoor air temperature. Some large shopping malls, theaters and factories have large amounts of exhaust gas and contain more heat. These exhaust gases heat the intake air to recover heat from the exhaust gas. It is of great economic significance to rationally utilize the heat in the exhaust gas in the HVAC system of various buildings. Basic types Heat recovery from exhaust gas can be performed in heat recovery units of different structural systems. Currently used exhaust heat recovery devices are roughly the following: (1) Rotary heat recovery (also known as hot wheels); (2) plate heat recovery; (3)