Spiral Plate Heat Exchanger

Overview

A spiral plate heat exchanger is a heat exchange device suitable for vapor-vapor, vapor-liquid, and liquid-liquid heat transfer for liquids. It is used in industries such as chemicals, petrochemicals, solvents, food, light industry, textiles, metallurgy, rolling steel, and coking. It can be classified into non-detachable (Type I) spiral plate heat exchangers and removable (Type II, Type III) spiral plate heat exchangers based on structural form.

     Structure and Performance

1. This equipment is formed by two rolled sheets, creating two uniform spiral channels. Both heat transfer media can flow in a fully counter-current manner, significantly enhancing the heat exchange efficiency, even for media with small temperature differences, achieving ideal heat exchange results.
2. The connection on the housing features a tangential structure, which minimizes local resistance. Due to the uniform curvature of the helical channel, the liquid flow within the equipment experiences minimal redirection, resulting in lower overall resistance. Consequently, the design flow rate can be increased to achieve higher heat transfer capacity.
3. The I-type non-detachable spiral plate heat exchanger features a sealed end face with welding, resulting in high sealing performance.
4. The Type II removable spiral plate heat exchanger operates on the same principle as non-removable heat exchangers, but one channel can be disassembled for cleaning, making it particularly suitable for heat exchange with sticky or sedimentary liquids.
5. The III-type removable spiral plate heat exchanger operates on the same principle as the non-removable type, but its two channels can be disassembled for cleaning, making it suitable for a wider range of applications.
6. Spiral plate heat exchangers can be classified by nominal pressure into PN0.6, 1.0, 1.6, and 2.5 MPa (referring to the maximum working pressure that a single channel can withstand). They can also be categorized by material into carbon steel and stainless steel. Users can choose according to their actual process requirements.
7. When a single piece of equipment does not meet the usage requirements, multiple units can be combined. However, the following regulations must be adhered to when combining: parallel combination, series combination, and equal spacing between equipment and pathways. Mixed combination: one channel in parallel and one channel in series.

Stainless acid-resistant steel PN 0.6, 1.6 MPa non-removable (Type I) spiral plate heat exchanger

Carbon steel Pg6, 16 kg/cm² non-detachable (Type I) spiral plate heat exchanger