Ribbed plate type heat exchanger with medium equipartition device

Abstract

The invention relates to a rib heat exchanger, with lower cost. Wherein, it has a medium distributor, while it can be used in the heat exchange plate with small angle aperture; the first nearby edge of first angle aperture of first heat exchange plate via the first edge incline extends downwards to the second nearby edge; the second nearby edge extends rightwards to the central line, and via the incline transition section extends upwards to the be layered with the second angle aperture nearby edge; the first nearby edge of second angle aperture of second heat exchange plate via the first edge incline surface extends upwards to the second nearby edge; the second nearby edge extends left wards to the central line, and via the incline transition section extends downwards to be layered with the first angle aperture nearby edge; the first edge incline surfaces of said two heat exchange plates both have small holes, while they are alternatively layered.

Description

technical field [0001] The present invention relates to a ribbed heat exchanger, in particular to a ribbed heat exchanger used in evaporators in refrigeration and heat pump cycles. Background technique [0002] The ribbed heat exchanger used for evaporator in this type of refrigeration and heat pump cycle system is usually composed of heat exchange plates that are connected and sealed together. There is a heat exchange structure in the heat exchange plate, and the heat exchange plate There are corner holes and corner hole sealing surfaces at both ends. When the heat exchange plates are connected and sealed together as required, these corner holes will form a confluence flow channel for the heat exchange medium in the heat exchanger. Usually, these heat exchange plates The connection and sealing form of the plates adopts the welding or brazing process, but adhesive or sealing gaskets can also be used as the connection and sealing form between the heat exchange plates. [000...

AI Technical Summary

Problems solved by technology

[0003] Under normal conditions, the refrigerant medium in the refrigeration and heat pump cycle will not be automatically and evenly distributed to the layers between the heat exchange plates when it flows into the ribbed heat exchanger as the evaporator, which will cause the refrigerant medium to There is uneven evaporation in each evaporative heat exchange level of the ribbed heat exchanger, which will cause less cold medium in some heat exchange levels and too much cold medium in other heat exchange levels. The fins are not fully and effectively utilized in the heat exchange process, which affects and reduces the overall heat exchange effect of the ribbed heat exchanger

[0004] In order to solve the problem of uneven distribution of the cold medium in each heat exchange level of the ribbed heat exchanger, two published patents to solve this problem can be found in the Chinese patent data. They are: Patent No. 93121143.3 and Patent No. 96198973.4, the disadvantage of the patent No. 93121143.3 is that the cost of the patented technology is high and the refrigerant distribution device and the plug-in refrigerant medium distribution pipe are not easy to fix and assemble. The disadvantage of the patent No. 96198973.4 is that this can be evenly distributed The structure of the heat medium requires the diameter of the corner holes to be large, which is not convenient for use in ribbed heat exchangers with small corner holes.

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