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Different types of heat exchangers are used in different working conditions

1. Spiral plate heat exchanger

Structure: spiral plate heat exchanger consists of two metal sheets

It is welded on a partition plate and rolled into a spiral shape. During heat exchange, the cold and hot fluids enter the two channels separately, and the device is subjected to strict countercurrent flow in the device.

2. Plate heat exchanger

Compact structure, small footprint, small space to provide a large heat exchange area, no additional disassembly space; in the same environment, its floor space and weight are 1/3 of other types of heat exchangers.

3. Plate-fin heat exchanger

Corrugated metal fins are sandwiched between two parallel metal plates, and the two sides are sealed by side strips to form a unit body; the respective unit bodies are stacked and properly arranged, and then fixed by brazing to form a countercurrent , cocurrent and cross-flow plate-fin heat exchanger assemblies (core or bundle); weld the header with inlet and outlet to the bundle.

Features: better heat transfer and more compact structure.

4. Heat pipe heat exchanger

The two ends of a metal tube are sealed, and a non-condensable gas is extracted and filled with a certain amount of working liquid. When one end of the heat pipe is heated, the working liquid is vaporized by heat boiling, and the generated steam flows to the cooling end to condense and release the latent heat of condensation, and the condensate flows back along the capillary force with the capillary structure to the heating section to boil again. The working medium is repeatedly cycled, and the heat is transferred from the heating end to the cooling end from the axial direction of the heat pipe.

There are many types of heat exchangers, and each type of heat exchanger is used in a certain kind of working condition. Therefore, different types of heat exchangers should be selected according to different medium, temperature, pressure and use occasions, so as to avoid weakness and make it bigger Economic benefits.