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Semi-welded heat exchanger
Semi-welded heat exchanger adopts laser welding technology
The semi-welded heat exchanger is composed of a plate box, and a plate box is formed by laser welding of two plates. This structure is welded on one side and gasket on the other side, eliminating the risk of corrosion of the sealing strip.
Semi-welded plate heat exchanger
The laser half-welded plate heat exchanger is composed of welding channels and conventional runners alternately. The two plates are reversed 180 degrees and welded to form a plate group to form a welding runner; each plate group is sealed with a gasket to form a detachable conventional runner. The sensitive medium flows through the welding runner, and the conventional medium flows through the conventional runner for heat exchange.
The laser semi-welded plate heat exchanger is especially suitable for the evaporation and condensation of refrigerants such as ammonia and freon. It is also an ideal heat exchange equipment for the medium that corrodes the gasket in the heat exchange of chemical and general processes.
The advanced flow principle
The unique flow channel design can increase the turbulence intensity when the medium flows through the plate heat exchanger, enhance the heat exchange effect and reduce the corresponding pressure loss. Even if the flow rate of the medium in the heat exchanger is very low, high heat exchange efficiency can be obtained. In order to meet the requirements of different working conditions, we have a variety of plate types to choose from.
Glus-free seals that last longer
Due to the high corrosion resistance of neoprene sealing gaskets, laser semi-welded plate heat exchangers use this material as the gasket material. The adhesive-free system installs the gasket in a specially designed groove to make the gasket and the medium The contact area is minimized, extending its service life. The sealing gasket also has the advantages of easy cleaning and good thermal stress resistance.
Models
When the mixing of the hot and cold medium of the plate heat exchanger will cause harmful reactions, we need to use the double-wall safety plate heat exchanger. Double-wall safety plate heat exchangers are widely used in food, medicine, municipal water supply, metallurgy, electric power and chemical industries.
Double-wall plates
The working principle of the double-wall safety plate heat exchanger is the same as that of the ordinary plate heat exchanger. The difference is that each heat exchange unit is formed by welding two plates, and the two plates are specially pressed to make them fit completely to reduce thermal resistance. The four corner holes are laser welded to form a heat exchange unit, which is equivalent to a plate of an ordinary detachable heat exchanger. It can be used as a common gasket with ordinary plates. When the plates have cracks or perforations, the fluid on either side will leak out from the gap between the plate groups; the relative leakage of the fluid on either side is at positive pressure and will never flow to the other side of the medium , To ensure the absolute safety of the media on the other side.
