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What are the parameters for the comparison and design of the heat exchanger and the evaporator?
Nov 30, 2018

Heat exchangers, it can be said that the product is widely used, mainly for heat exchange. Therefore, it can be used in various occasions where heat exchange is required. In order to use the heat exchanger correctly and reasonably, it is necessary to master the relevant professional knowledge in order to achieve the purpose, and in turn, it has a good use effect on the use of the product.


1. Is the evaporator the same as the heat exchanger?

Evaporators and heat exchangers, if they are based on the principle, they are indistinguishable because they are designed to achieve the purpose of heat exchange between hot and cold fluids, but from a professional point of view, the two are different because of heat exchange. The concept of the device is broader. It contains all the "heat exchange equipment" for heat exchange, and there are different types, such as convection heat exchangers, plate heat exchangers, heat pipe heat exchangers, and regenerative heat exchangers. Heat and radiant heat exchangers. The evaporator, which is also a type of heat exchanger, is a phase change and is a special heat exchanger. In addition, it is also necessary to know that the heat exchange mode or the heat exchanger type is different, and it is very different in terms of heat exchanger design and structure.


2. The heat exchanger is designed to work. What parameters do you need to provide?

The heat exchanger, if it is designed, needs to provide some parameters, and it has specific steps and processes, which are: shell and tube heat exchanger medium inlet and outlet parameters, mainly for pressure and temperature, thus To find out the physical properties of the heat exchange medium, that is, the physical properties of the heat exchanger. In addition, it is necessary to know the structural parameters, including the heat exchanger type, heat transfer pipe diameter, number of pipe runs, heat transfer pipe material, and medium flow rate in the hot and cold section, which are basically the same. The design purpose of the heat exchanger is to determine the appropriate heat exchange area and the heat transfer surface arrangement and specific structure of the heat exchanger according to the above parameters to ensure a good heat exchange effect of the heat exchanger.


3. Is there a rigid regulation on the length of the heat transfer tube of the heat exchanger?

The length of the heat transfer tube of the heat exchanger has some rigid regulations, and from a professional point of view, as long as the structure and capacity of the heat exchanger are suitable, the length of the tube can be customized, so that it can meet different use requirements. At the same time, it can guarantee the good performance and use effect of the heat exchanger.


4. How to choose the heat exchanger inlet and outlet temperature?

The inlet and outlet temperature of the heat exchanger is not selected, but there are specific requirements, because when the inflowing hot fluid is cooled, the hot fluid inlet temperature will be known, and it is known how much cooling is required before it can be changed according to the heat exchanger. The heat is purchased or the product is designed, and the inlet and outlet temperatures of the heat exchanger are the design requirements and basis, and are a known amount so that the subsequent work can be performed.

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