A spiral heat exchanger (SHE) is a high-efficiency heat exchanger suitable for steam-steam, steam-liquid and liquid-liquid heat transfer. It adapts for chemical, petroleum, pharmacy, food, light-industry, textile, metallurgy, steel rolling and coking industry etc. According to the structure, it can be divided into un-detachable type and detachable type.

Construction

(1) This equipment coiled with two sheets of metal to form two uniform spiral flow passages, both fluids flow in opposite directions. It provides extremely efficient heat transfer, even for two kinds of fluid with little temperature range. It can reach the ideal heat exchanging effect.

(2) The nozzles of the shell adopt tangential connection type, with small local resistance loss. Because of the uniform curved rate of spiral channel, fluids flow without sudden changing, so flow rate can be much higher in order to improve the heat transfer capacity.