A heat exchanger plate structure

Abstract

The invention relates to a sheet space structure for a heat exchanger. The sheet space structure comprises a main panel and stop slopes arranged on the two sides of the main panel, wherein a plurality of wave crest surfaces and a plurality of wave trough surfaces are also arranged on the main panel alternately; a first slope surface and a second slope surface are also arranged on the main panel; the two ends of each wave crest surface are connected with the first slope surface respectively; the first slope surface is connected with the second slope surface through a horizontal extension surface; the length of the first slope surface is different from that of the second slope surface; and the two ends of each wave trough surface are connected with the second slope surface respectively. Compared with other heat exchangers with asymmetric structures, with the adoption of a brazing heat exchanger formed with a sheet space group as a unit, the channel structure can ensure acquisition of different volumes and consistent pressure bearing capacity of two adjacent heat transfer medium channels without adding the area of a welding contact point of two adjacent sheet spaces, and the brazing heat exchanger is particularly suitable for special working conditions with some flows with obvious differences.

Description

technical field [0001] The invention relates to a heat exchanger plate structure. Background technique [0002] Under the existing technical conditions, the plate heat exchanger needs to achieve the effect of different medium circulation spaces (that is, the volumes of the two adjacent heat exchange media flow through are different), and generally adopts an asymmetric corrugated plate structure. , so that two adjacent ripples are inconsistent. However, in this way, due to the difference in the number of welding contact points (that is, the contact density) that constitutes the adjacent medium channels, it is easy to cause the difference in the pressure bearing capacity of the two adjacent heat exchange media to be too large; in addition, the adjacent medium channels The increase in the area of ​​the welding contact point will easily lead to an increase in the thermal resistance of the heat exchange medium, which is not conducive to the improvement of the heat exchange effic...

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Problems solved by technology

However, in this way, due to the difference in the number of welding contact points (that is, the contact density) that constitutes the adjacent medium channels, it is easy to cause the difference in the pressure bearing capacity of the two adjacent heat exchange media to be too large; in addition, the adjacent medium channels The increase in the area of ​​the welding contact point will easily lead to an increase in the thermal resistance of the heat exchange medium, which is not conducive to the improvement of the heat exchange efficiency of the system

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