Spiral plate heat exchangers feature continuous spiral channels that promote high turbulence and self-cleaning effects. This design prevents clogging and ensures efficient heat transfer for viscous, dirty, or particulate fluids. Ideal for wastewater, pulp, and heavy industry, they provide long-lasting performance and operational reliability.
Used as a compact chemical reactor. Reactants undergo chemical reactions while flowing through a helical channel. Its highly efficient heat transfer allows for precise temperature control, making it particularly suitable for strongly exothermic or endothermic reactions.
Used as a reboiler, the pure counter-current arrangement facilitates rapid discharge of condensate and reduces liquid film thermal resistance; in reboiling applications, it also promotes the generation of vaporization nuclei and the detachment of bubbles, resulting in a high heat transfer coefficient.
Used in the heating, cooling, sterilization, and crystallization processes of pharmaceutical solutions. Due to its ease of cleaning and sterilization, it is suitable for industries with high hygiene requirements.
Used for smooth processing of juice containing large amounts of pulp and fiber, it is not prone to clogging. During the juice concentration stage, when the viscosity of the material increases sharply, the spiral plate heat exchanger can still maintain good heat transfer performance and flowability.
In alkali recovery systems, black liquor has high viscosity and is prone to scaling and crystallization of silicates during concentration. The self-cleaning function and wide-channel design of spiral plate heat exchangers effectively reduce the frequency of shutdowns for cleaning, ensuring continuous and stable operation of the evaporation station.
The spiral plate heat exchanger consists of two metal plates wound into a spiral shape to create two continuous flow channels. One fluid flows through each spiral channel, and heat is transferred through the metal wall separating them. The spiral design promotes a uniform flow and minimizes dead zones, ensuring stable and efficient heat transfer.
Because of its self-cleaning flow pattern, the spiral plate heat exchanger is particularly suitable for handling viscous, fouling, or particulate-laden fluids. It offers reliable performance in wastewater treatment, chemical processing, and pulp and paper industries.
Compared to traditional shell-and-tube heat exchangers, Spiral Plate Heat Exchanger designs deliver superior thermal performance with significantly reduced size and weight. Their innovative flow distribution and turbulence-enhancing geometries increase heat transfer efficiency while minimizing energy loss. The result — lower energy consumption, greater heat recovery, and more available space for your operation — making them the ideal choice for modern high-performance thermal systems.
Yes – 100%. Both channels are fully accessible by simply removing the cover plates. You can visually inspect, high-pressure wash, or mechanically brush the entire spiral passage in under 2 hours, unlike shell-and-tube units that require tube pulling.
No. The single continuous spiral channel has no dead zones and maintains constant velocity (1–2 m/s typical). It handles slurries up to 15 mm particles, pulp, fibrous wastewater, or food products with tomato seeds/meat fibers without clogging.
Standard models: 450 °C (842 °F) and 25 bar (360 psi). Special designs reach 700 °C and 60 bar using higher-grade alloys (316L, 254 SMO, Hastelloy, Titanium). Always check our P-T rating table for your exact model.
True counter-current flow allows approach temperatures as low as **2–3 °C (3.6–5.4 °F)** – typically 50% better than shell-and-tube in the same duty. This is why customers save 30–40% energy in viscous oil or sludge cooling applications.
One single spiral body can handle **up to 2,000 m²** of heat transfer area (diameter up to 2.2 m). For duties >500 kW or extreme ΔT, we simply use **one larger spiral** instead of 3–4 shell-and-tube shells in series – reducing piping, foundations, and maintenance points.
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