Spiral plate heat exchanger is generally used in the chemical industry, the equipment has two channels, through two sheets of coil combined with a fixed distance column, jointly rolled into a cylinder-shaped equipment, two media in two channels in reverse flow, hot and cold fluid through the flow channel, there is a partition plate in the middle of the fluid separate, and through the plate for heat transfer.
The structure and heat exchange principle of spiral plate heat exchanger determine that it has the characteristics of compact structure, small footprint, high heat transfer efficiency, large operational flexibility, wide application range, small heat loss, convenient installation and cleaning.
Spiral plate heat exchanger his working principle is as follows:
First, good heat transfer efficiency. The curved spiral channel and fixed distance column are conducive to enhancing the turbulent state of the fluid. The fluid resistance in the channel is small, the design flow rate can be increased, and the heat transfer coefficient can be improved. For water-water heat transfer, the heat transfer coefficient can reach 1.8 ~ 3.5 kW per square meter per degree Celsius (kW/(m(· ° C)).
Second, it has a self-cleaning effect, when the fluid in the single channel passes through the impurity deposition in the channel, the flow rate will be relatively increased, and it is easy to wash away the impurities.
Third, the sealing performance of non-detachable structure is good. Suitable for heat transfer of judu, yiran, easy bao or valuable fluids.
The above is the working principle of the spiral plate heat exchanger introduced by Xiaobian. The spiral plate heat exchanger has replaced the tube and shell heat exchanger to become the commonly used heat exchanger in the mouth, which must have its advantages. Compared with other heat exchangers, the heat exchange efficiency of spiral plate heat exchangers is higher than that of ordinary heat exchangers, because it has a higher sealing property, so the energy consumption is relatively small.
