A plate evaporator

Abstract

The invention relates to a plate type evaporator, which comprises a series of heat exchange plates stacked at intervals between the first heat exchange fins and the second heat exchange fins (2) to form an interlaced , isolated heat exchange channels; the first surface (6) of the first and second heat exchange plates has a heat exchange area (E); the first surface (6) is respectively provided with four corner holes corresponding to the cold / heat medium Liquid inlet channel or liquid outlet channel; at least one groove (3') is provided on the edge of the first liquid inlet hole (a) for cold medium inlet in the four corner holes, and the groove (3') starts from the first inlet The edge of the liquid hole (a) extends all the way to the heat exchange channel; the first surface (6) is centrosymmetric except for the four corner holes, but the arrangement of the center points of the four corner holes also satisfies centrosymmetry; the first and second heat exchange The plates are punched separately from the same substrate. Copper foil is applied on the first surface of each heat exchange plate, the heat exchange plates are stacked in sequence, and the copper foil is heated to melt to form a permanent bond between the first and second heat exchange plates.

Description

Technical field[0001]The present invention relates to a plate heat exchanger in combination with a multilayer heat exchange plate, and more particularly to a plate evaporator that is permanently bonded together by multilayer heat exchange plates.Background technique[0002]The plate heat exchanger is the most commonly used heat exchanger in the field of cooling and heat, such as air conditioning, heat pump heat, etc., in two interleaved and interlaced flow paths, the evaporation of the refrigerant is discharged during the condensation process. A large amount of heat, refrigeration or heating of the second fluid such as water. The plate evaporator is the most ideal equipment for the heat exchange of liquid-steam. It has the advantages of high heat exchange efficiency, small heat loss, compact structure, small area, and long service life. The plate evaporator is often also divided into detachable and non-detachable, and detachable mainly consists of a certain number of heat exchanger, s...

AI Technical Summary

Problems solved by technology

The production line has a high degree of automation, but the production line includes two parallel production lines, and the equipment investment cost is high, especially in the final stamping part of the two heat exchange fins. The machine punches out the holes, but in fact the heat exchange fins produced by the two production lines must ensure that they match each other very high, which requires extremely high production accuracy, which undoubtedly increases the control cost of the equipment. The plate package can only produce heat exchangers without distributors. If distributors are required, distributor gaskets must be installed manually, which is not only troublesome and costly, but distributors are standard equipment for refrigerant evaporators.

Images