Design principle of spiral plate heat exchanger

Spiral plate heat exchanger is especially suitable for sludge, mud, wastewater, scaling, high viscosity liquid and liquid containing fibers and solids. Spiral plate heat exchanger is a better solution for applications that need to deal with challenging fluids. The design of spiral plate heat exchanger allows countercurrent flow and can realize heat transfer with small temperature difference.

Because we use spiral metal plate instead of tube bundle, we can achieve very high thermal performance without sacrificing channel gap, thus making the medium unimpeded. The spiral plate heat exchanger plate itself will also produce turbulence, while the single channel design has a "self-cleaning" mechanism, which helps to reduce scaling. The accumulated sediment will locally increase the flow rate, resulting in a flushing effect, which is enough to loosen the sediment in the dirt in most cases. This enables our SONDEX® spiral plate heat exchanger to run for a long time without maintenance or cleaning.

However, some media are so challenging that the heat exchanger of spiral plate heat exchanger needs frequent maintenance and cleaning. With this in mind, we have designed a hinged cover sealed with a C-clip, creating a revolving door that is very easy to open and close. The whole spiral plate can be viewed for inspection and cleaning without any special tools.

Features and advantages of spiral plate heat exchanger: single-channel design with high shear rate, self-cleaning to prevent device blockage. Spiral plate heat exchanger is an ideal solution for challenging high viscosity media. The appropriate channel size can be selected according to the flow rate and quality of the medium. The variable diameter and width of the coil allows many different combinations, which means that we can create a better solution for each application. Designed to handle very active temperature projects and provide a variety of materials and plate thicknesses, we customize each spiral plate heat exchanger to meet various application requirements. And the maintenance and cleaning requirements are very limited, so that the normal operation time can be prolonged. If cleaning is required, the hinge cover can easily enter the whole heat transfer surface, because the medium is particularly difficult to handle. Our spiral plate heat exchanger is a very compact solution, which can greatly reduce the space requirement. Although they are small and slender, the tortuous flow path provides a very high heat transfer coefficient, which is twice that of shell-and-tube heat exchangers.

Screw plate heat exchanger specification interfaces DN32 to DN300. The frame design conforms to FEA and PED 2014/68/EU (EN13445) and ASME Chapter VIII Part 1 building standards). Material: carbon steel, stainless steel. Material of spiral plate: carbon steel, stainless steel. Operating pressure up to 16 bar (145 psi) and operating temperature range-20 C to 200 °C (392 °F). Higher pressure can be provided upon request. Dairy products, food, beverage, industrial biogas, industrial wastewater, industrial papermaking, heavy industry, industrial petroleum, chemical industry, chemical industry, etc.