Spiral Plate Heat Exchanger

Spiral Plate Heat Exchanger

Overview

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

       Structure and Performance

1. This equipment is made from two rolls, forming two even spiral channels. The two heat transfer mediums can flow in a fully counter-current manner, significantly enhancing the heat exchange efficiency. Even with two mediums of small temperature differences, it can achieve ideal heat exchange results.
2. The branch connections on the housing are designed with a tangential structure, featuring minimal local resistance. Due to the uniform curvature of the helical channels, the liquid flow within the equipment experiences minimal directional changes, resulting in reduced overall resistance. Consequently, the design flow rate can be increased, endowing the device with higher heat transfer capabilities.
3. The I-type non-detachable spiral plate heat exchanger features a sealed end face with welding, thus offering high sealing integrity.
4. The structural principle of the II-type removable spiral plate heat exchanger is essentially the same as that of the non-removable type, but one of the channels can be disassembled for cleaning, particularly suitable for heat exchange of viscous and sediment-containing liquids.
5. The III-type removable spiral plate heat exchanger has a structure and principle similar to non-removable heat exchangers, but its two channels can be disassembled for cleaning, making it more versatile in application.
6. Spiral plate heat exchangers are divided into PN0.6, 1.0, 1.6, and 2.5 MPa (referring to the maximum working pressure a single channel can withstand) according to nominal pressure. They can also be categorized by material as 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 for use. However, the following regulations must be adhered to when combining: parallel combination, series combination, and uniform spacing between equipment and channels. Mixed combination: one channel in parallel, one channel in series.

Stainless acid-resistant steel PN0.6, 1.6MPa non-detachable (Type I) spiral plate heat exchanger

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