Plate heat exchangers are also widely used in factories. However, the type of plate heat exchanger equipment required by each company or factory is different. How should the company choose the type of plate heat exchanger?
The plate heat exchanger equipment is made up of two steel plates, which form two uniform spiral channels. The two heat transfer media can carry out full countercurrent flow, which greatly enhances the heat transfer effect. Even with two small temperature difference media, the ideal heat transfer effect can be achieved.The connecting tube on the shell of the plate heat exchanger adopts a twisting structure, and the local resistance is small. Since the curvature of the spiral passage is uniform, the liquid does not have a large steering in the apparatus, and the total resistance is small, so that the design flow rate can be increased to have a high heat transfer capacity.
The end face of the spiral passage of the type I non-removable spiral plate heat exchanger is welded and sealed, so that it has a high sealing property.The structure principle of the Type II detachable spiral plate heat exchanger is basically the same as that of the non-removable heat exchanger, but one of the channels can be disassembled and cleaned, especially for heat exchange with viscous and precipitated liquid.The structure principle of the type III detachable spiral plate heat exchanger is basically the same as that of the non-removable heat exchanger, but the two channels can be disassembled and cleaned, and the scope of application is wide.However, the spiral plate heat exchanger can be divided into the maximum working pressure that a single channel can withstand according to the nominal pressure.According to the material, it can be divided into carbon steel and stainless steel. Users can choose according to the actual process conditions. When a single device cannot meet the usage requirements, it can be used in combination.However, the following requirements must be met when combining: parallel combination, series combination, equipment and channel spacing are the same. Hybrid combination: one channel is connected in parallel and one channel is connected in series.