Spiral plate heat exchangers are widely used. In China, spiral plate heat exchangers have been used to replace shell-and-tube heat exchangers in the shift heat exchangers of small and medium-sized ammonia plants and the heat exchangers in the lower part of the synthesis tower. The equipment cost of the spiral plate heat exchanger for the electrolyte heater and concentrated lye cooler of the caustic soda plant is only 1/3 of that of the shell-and-tube heat exchanger . In addition , this kind of heat exchanger has good effects for tower top condensation, quenching oil cooling, oleum cooling and fatty acid cooling. This kind of equipment has the best effect for steam condensation and non-phase change convection heat transfer, and it can also be used for boiling heat transfer. The connecting pipe on the shell adopts a directional structure with small local resistance. Because the curvature of the spiral channel is uniform, there is no big turning of the liquid flow in the equipment, and the total resistance is small. Therefore, the design flow rate can be increased to make it have a higher Heat transfer capacity.

https://www.wxlsshzb.com/