Brief discussion on spiral plate heat exchanger

Spiral plate heat exchanger without dead angle is an efficient heat exchange equipment, which is suitable for heat transfer of steam, steam, liquid, liquid and liquid. It is mainly used in chemical industry, petroleum, solvent, medicine, food, light industry, textile, metallurgy, steel rolling, coking and other industries.

In order to achieve the purpose of mechanical cleaning, open the flat cover and gasket of the spiral plate heat exchanger without dead angle at one end of the detachable spiral channel to prevent the fluid from leaking into the atmosphere or short circuit of the fluid in the same channel. The structure of the non detachable spiral plate heat exchanger is relatively simple. All oil coolers at both ends of the spiral channel are welded, and the sealing structure of the removable spiral plate heat exchange shell and tube heat exchanger is exactly the same as that at both ends of the spiral channel.

The working temperature of spiral plate heat exchanger depends on the selected materials, most of which are carbon steel, stainless steel, aluminum, copper and titanium. In order to improve the bearing capacity of spiral plates, fixed distance columns are used between plates. There are two kinds of fluid inlet and outlet on the cylinder: normal nozzle and tangential nozzle. Tangential nozzle is widely used in China. Its fluid resistance is small and impurities are easy to be washed out by stainless steel reaction pot. The use of the rotary support is more convenient, and the heat exchanger can be placed vertically or horizontally. The heat exchange fluids a and B flow through both sides of the spiral plate respectively, and one fluid flows from outside to inside along the spiral channel. Out of the center outlet. The spiral plate heat exchanger and another fluid fixed tubesheet heat exchanger flow from the center inlet to the outside along the spiral channel. The two fluids flow in pure countercurrent.