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  • 蒸发器和换热器的区别
  • 本站编辑:国际米兰吧发布日期:2019-12-12 20:34 浏览次数:

1、从原理上说,二者是没有区别的,二者都是以达到冷热流体换热为目的的。

2、但二者也不能混为一谈。

(1)“换热器”的概念更加广泛,包含了所有的以热交换为目的的一切“换热设备”。比如,辐射换热器、对流换热器、板式换热器、针状换热器、热管换热器、扰流子换热器、蓄热式换热器、气气换热器、气液换热器,等等,这些都是堂堂正正的所谓“换热器”。

(2)当然,蒸发器、冷凝器也是属于换热器的一种类型,只不过这类的“换热器”有相变,比较特殊。因此,其名称通常是按照工质相变来命名的,以示与普通换热器的区别。比如,气体发生凝结的,就叫“冷凝器”,当然,液体发生蒸发的,就叫蒸发器了。但不论如何,它们仍然属于换热器的范畴。

(3)其他特殊应用的领域的还有:锅炉用的对流(屏蔽、高温、低温)过热器、高温(低温)再热器、省煤器,等等,这类“换热器”是按照使用目的或用处来命名的。其实,这些也都是比较特殊用途或特别领域应用的一类换热器。

1. In principle, there is no difference between the two, they are both aimed at heat transfer of cold and hot fluids. 2. But you can't mix the two. (1) the concept of heat exchanger something is broader, including all the heat exchanger something for the purpose of heat exchange. For example, radiation heat exchanger, convection heat exchanger, plate heat exchanger, needle heat exchanger, heat pipe heat exchanger, spoiler heat exchanger, regenerative heat exchanger, gas heat exchanger, gas-liquid heat exchanger, etc. These are the so-called heat exchangers. (2) of course, evaporator and condenser also belong to a type of heat exchanger, but this type of heat exchanger has phase change, more special. Therefore, the name is usually based on the working fluid phase change to show the difference with the ordinary heat exchanger. For example, gas condensation, called the condenser something, of course, the liquid evaporation, called the evaporator. However, they still belong to the category of heat exchanger. (3) other special applications include convection (shield, high temperature, low temperature) superheaters, high temperature (low temperature) reheaters, economizers, and so on, which are named after their purpose or use. In fact, these are also more special use or special field applications of a class of heat exchangers.

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