The efficiency of heat exchanger is improved from several aspects

1. Heat exchanger ripples often produce turbulence at low fluid flow rates, so that higher surface heat transfer coefficients can be obtained. The surface heat transfer coefficients of heat exchanger accessories, the geometric structure of the plate ripples, and the flow state of the medium are very large. relationship.

2. The key to reducing the thermal resistance of the fouling layer of the heat exchanger is to prevent fouling of the plates. When the fouling thickness of the plate is 1mm, the heat transfer coefficient is reduced by about 10%. Therefore, care must be taken to monitor the water quality on both sides of the heat exchanger to prevent fouling of the plates and prevent debris in the water from adhering to the plates.

3. The plate material can choose stainless steel, titanium alloy, copper alloy, etc. Stainless steel has good thermal conductivity, thermal conductivity is about 14.4W/(m·K), high strength, good stamping performance, not easy to be oxidized, lower price than titanium alloy and copper alloy, and is most used in heating engineering, but it is resistant to chlorine The ability of ion corrosion is poor.

4. The thickness of the plate design of the heat exchanger accessories has little to do with the corrosion resistance, mainly related to the pressure bearing capacity of the heat exchanger. However, thickening the plates can increase the pressure-bearing capacity of the heat exchanger. With the combination of herringbone plates, adjacent plates will be upside down and the corrugations will be in contact with each other. At this time, a high-density, uniformly distributed fulcrum is formed, giving it a good pressure bearing capacity.