The spiral plate heat exchanger is an efficient heat exchange device suitable for gas-gas, gas-liquid, and liquid-liquid heat transfer. It is widely used in various industries such as chemical, petroleum, solvent, pharmaceutical, food, light industry, textile, metallurgy, steel rolling, and coking. According to its structural form, it can be divided into non-detachable (Type I) spiral plate heat exchangers and detachable (Type I, Type II, Type III) spiral plate heat exchangers Structure and performance
       1. This equipment is made of two rolls, forming two uniform spiral channels. Two heat transfer media can flow in full countercurrent, greatly enhancing the heat exchange effect. Even for two media with small temperature differences, ideal heat exchange effects can be achieved.
2. The connecting pipe on the shell adopts a tangential structure, resulting in low local resistance. Due to the uniform curvature of the spiral channel, the liquid flows within the device without significant turning, leading to low overall resistance. Therefore, the design flow rate can be increased, enhancing its heat transfer capability
3. The end faces of the spiral channels in the Type I non-detachable spiral plate heat exchanger are sealed by welding, thus ensuring high sealing performance
4. The structural principle of the Type II detachable spiral plate heat exchanger is basically the same as that of the non-detachable heat exchanger, but one of its channels can be detached for cleaning, making it particularly suitable for heat exchange with viscous and sedimentary liquids
5. The structural principle of Type III detachable spiral plate heat exchanger is basically the same as that of non-detachable heat exchanger, but its two channels can be detached for cleaning, making it widely applicable
6. Spiral plate heat exchangers can be divided into PN0.6, 1.0, 1.6, and 2.5 MPa according to their nominal pressure (referring to the maximum working pressure that a single channel can withstand). They can also be classified into carbon steel and stainless steel types. Users can choose according to their actual process conditions
When a single device cannot meet the usage requirements, multiple devices can be used in combination, but the combination must comply with the following regulations: Parallel combination, series combination, equipment, and channel spacing are all the same. Mixed combination: one channel in parallel and one channel in series.