Spiral Plate Heat Exchanger

Spiral plate heat exchangers are made of two thin metal plates welded to a dividing baffle (the short plate in the center of the picture) and rolled into a spiral. Two thin metal plates form two spiral channels in the device, and the top and bottom are respectively welded with cover plates or heads. When exchanging heat, the cold and hot fluids enter two channels respectively, and flow strictly countercurrently in the device.

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Description

Technical Parameters

Introduction

Advantages

(1) The overall heat transfer coefficient is high. Since the fluid flows in the spiral channel, turbulent flow can be achieved at a lower Reynolds value (generally Re=1400-1800, sometimes as low as 500), and a higher flow rate can be selected (2m/s for liquid, 2m/s for gas) 20m/s), so the overall heat transfer coefficient is relatively large.
(2) Not easy to block. Due to the high flow rate of the fluid, the suspended matter in the fluid is not easy to deposit, and any sediment will reduce the cross section of the single flow channel, thus increasing the speed and scouring the blocked area, so the spiral plate heat exchanger Not easy to be blocked.
(3) Able to utilize low-temperature heat source and precisely control temperature. This is due to the long passage of fluid flow and the complete counterflow of the two fluids.
(4) Compact structure. The heat transfer area per unit volume is three times that of the tube heat exchanger.

Product Details

product-850-1123