The spiral plate heat exchanger is a heat exchanger in which two parallel metal plates are rolled into two spiral channels, and the hot and cold fluids exchange heat through the spiral plate walls.Since the center of the spiral flow path to the casing is entirely made of continuous metal foil, the risk of leakage due to the presence of welds that are difficult to handle is completely avoided.Therefore, it can be used to handle sensitive and unstable hazardous fluids.The flow path of the spiral plate heat exchanger has the following characteristics:
(1) The length of the flow path is flexible and adapts to various fluids. Due to the great flexibility of the geometry of the runner, the spiral plate heat exchanger is suitably adjusted to the existing conditions and requirements.At the same time, the spiral plate heat exchanger has a relatively long separate flow path, which can provide a sufficiently long heat exchange distance for many difficult-to-handle fluids. In this way, the fluid can be completely processed in one device and clogging problems due to sudden steering of the fluid are avoided.
(2) The spiral plate heat exchanger has a concentric flow path and a certain number of fixed-distance columns. The fluid can also generate turbulence when the Reynolds number is low. Through this optimized flow pattern, the heat exchange capacity of the fluid is increased while reducing the possibility of particle deposition.
(3) It is not easy to block in the flow channel.Since the spiral plate heat exchanger employs a single flow path structure, it is generally the mainstream choice when handling fluids that are easily deposited, viscous fluids, and fluids containing particles.This is due to the self-cleaning function of the spiral plate heat exchanger, which has been flushed out by the fluid before the blockage is completely formed.