Box-shaped stacked heat exchanger with different plate thickness and different plate spacing flow channel height
A technology with different thicknesses and plate spacing, applied in the direction of indirect heat exchangers, heat exchanger types, laminated components, etc., can solve the problem of increasing product manufacturing difficulty and cost, high manufacturing costs, heat exchanger pressure bearing capacity and resistance Fatigue ability is weak and other problems, to achieve the effect of improving pressure bearing capacity and fatigue resistance, reducing manufacturing difficulty and manufacturing cost
Active Publication Date: 2018-02-27
缪志先
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[0003] The disadvantage of the prior art with published patent No. 03811046.6 is that after the above-mentioned heat exchange plates are assembled and brazed, the second edge section of each second type heat exchange plate will not It is in contact with the first and third edge slopes of the upper and lower heat exchange plates, and will not be brazed with these edge slopes, which will cause the second type of In the edge of the heat exchange plate, there will be a section of outer edge protection with only a single heat exchange plate material thickness. Such an edge thickness distribution will result in weak pressure bearing capacity and fatigue resistance of the entire heat exchanger
[0004] In addition, the manufacture of the second type of heat exchange plate composed of three sections requires a relatively special mold, which makes its manufacturing cost higher and increases the difficulty and cost of product manufacturing
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[0029] Further description will be made below in conjunction with embodiments and illustrations.
[0030] Such as figure 1 As shown, there is a heat exchange structure 2 on the first type of heat exchange plate 1 with a thickness h1 of the plate material. The height of the heat exchange structure 2 is H1. The angle between it and the extension line of the bottom plate is a, and the edge slope has sufficient height, and the value of the angle a can be determined by calculation.
[0031] Such as figure 2 As shown, the first type of heat exchange plates 1 with plate material thickness h1 are stacked and assembled together, and the edges of each heat exchange plate 1 have turned-up edge parts and are sealed and connected together to form a The heat exchange core with the same plate thickness h1 and the same plate spacing flow channel height as H1 has a heat exchange structure 2 between the plate spacing channels of the heat exchange plate 1, and their height is the same as the ...
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A box-shaped laminated heat exchanger with different plate thicknesses and different plate spacing flow channel heights, including a heat exchange core, is characterized in that all types of heat exchange plates have a section of slope turned up in the same direction at their edges. The slope has a sufficient height and is connected to the bottom plate of the heat exchange plate. The angle a between the slope of the edge of various types of heat exchange plates and the bottom plate is the same, and the thickness of the plates of various types of heat exchange plates that can be stacked together is different. , resulting in different heights of flow channels between plates in various types of heat exchange plates.
Description
technical field [0001] The invention relates to a heat exchanger, in particular to a box-shaped stacked heat exchanger with different plate thicknesses and different plate spacing flow channel heights. Background technique [0002] The prior art of heat exchangers with different plate spacings has been disclosed in Patent Application No. 03811046.6. In the first article of the patent claims, it is clearly stated that the heat exchange core of this type of heat exchanger is composed of two The first type has different flow channel heights, and the heat exchange plates with a box-shaped groove structure are stacked together, and it also clearly shows that the edge of the second type of heat exchange plate is composed of three sections. Wherein, the first edge segment with height H1 and the third edge segment with height H3 each have a bevel angle a, while the second edge segment with height H2 is perpendicular to the bottom of the board. [0003] The disadvantage of the prior...
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IPC IPC(8): F28D9/00F28F3/10
Inventor 缪志先
Owner 缪志先