Welded spiral heat exchangers. Alfa Laval spiral heat exchangers are designed to handle the toughest heat transfer challenges. Whether its frequent fouling from dirty media, or limitations from pressure drop and floor space, they are the ultimate problem solver for liquid-to-liquid and two-phase duties.
It withstands extremely high pressure, stress variation and thermal shocks. Like the plate pack, the surrounding shell is fully welded. The plate pack and shell are not, however, welded together, which allows them to expand and contract with heat variation. The plate pack consists of circular plates, which guarantees even distribution of stress.
Welded Plate Heat Exchanger - Semi & Fully Welded HFMAll-welded plate heat exchanger is a kind of plate type heat exchangers that can endure high temperature and high pressure. Highest temperature 400°C, pressure 3.5Mpa. R elying on application practices, Fully welded plate heat exchangers are applied in oil and gas industry, refinery applications, pharmaceutical industry, chemical/petrochemical industry.
Vahterus heat exchangers are used for e.g. heating, cooling, condensing and recovery of process heat. Vahterus heat exchangers comprise a fully welded pack of circular heat transfer plates assembled into a cylindrical steel shell. This principle is known as Plate & Shell®. The overall construction and a number of the component parts are patented.Images
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Alfa Laval - Industrial semi-welded lineThe heat transfer area of a gasketed plate-and-frame heat exchanger consists of a series of corrugated plates, assembled between the frame and pressure plates, which retain the design pressure. For the highest thermal performance and to enable a very close temperature approach, fluids normally run counter-currently through the heat exchanger.
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