The application discloses a heat exchange plate combination of an air type brazing plate type heat exchanger

Abstract

The utility model relates to a heat exchange plate combination of air type brazing plate type heat exchanger convenient to assemble belongs to heat exchange technical field, the first heat exchange plate two ends respectively open second through -hole, the first through -hole outer periphery has first sealing protrusion, is equipped with the first concave welding spot of annular uniform distribution on first sealing protrusion, first heat exchange plate surface is equipped with multiple first point group, first heat exchange plate two long side edges symmetry is equipped with a plurality of second convex welding spot, first heat exchange plate four corners respectively are equipped with first positioning point, first heat exchange plate two long side middle edges are equipped with second positioning point, second heat exchange plate four corners respectively are equipped with fourth positioning point, fourth positioning point with first positioning point correspond, second sealing protrusion long side middle part symmetry is equipped with a plurality of third positioning points, in the installation process, the long -wide ratio heat exchange plate group middle part is avoided skew, is convenient to aim at, has improved accuracy, has saved time and labour.

Description

Technical Field

[0001] This utility model relates to a heat exchange plate assembly for an air-type brazed plate heat exchanger that is easy to assemble, belonging to the field of heat exchange technology. Background Technology

[0002] An air-type brazed plate heat exchanger is a heat exchange device that uses air as a coolant or heat source to cool or heat the medium inside the heat exchanger. It mainly consists of front and rear end plates, heat exchange plates, and brazing filler metal. During operation, a fluid medium flows in one channel of the heat exchange plates, while air is blown into another channel outside the heat exchange plates. The type and number of heat exchange plates significantly affect the performance of the air cooler. Compared to traditional air-type brazed plate heat exchangers, air-type brazed plate heat exchangers with a large aspect ratio have a sufficiently long internal flow path within the heat exchange plates, a large ventilation surface, and a greater air intake volume per unit time.

[0003] However, due to the large aspect ratio of the narrow and long air-brazed plate heat exchanger, it is difficult to ensure the straightness of the plates during the pressing process. Furthermore, the narrow and long plates are prone to tilting, misalignment, and positioning during installation, making the installation process troublesome, time-consuming, and labor-intensive. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a heat exchange plate assembly for an air-type brazed plate heat exchanger that is easy to assemble, easy to position and align, convenient to install, and saves time and effort.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a heat exchange plate assembly of an air-type brazed plate heat exchanger that is easy to assemble, comprising multiple sets of stacked heat exchange plate groups, each heat exchange plate group comprising a first heat exchange plate and a second heat exchange plate, the first heat exchange plate in the same group being disposed above the second heat exchange plate, the gap between the first heat exchange plate and the second heat exchange plate below forming a fluid medium channel, and the gap between the second heat exchange plate and the first heat exchange plate in the adjacent heat exchange plate group forming an air flow channel; The first heat exchange plate has first through holes at both ends, and the outer periphery of the first through hole has an annular first sealing protrusion. The first sealing protrusion has first concave weld points evenly distributed in a circumferential direction. The surface of the first heat exchange plate has multiple sets of first point groups evenly distributed along the width direction. The two long edges of the first heat exchange plate have several second protruding weld points arranged at intervals. The four corners of the first heat exchange plate have first positioning points. The middle edges of the two long edges of the first heat exchange plate have multiple second positioning points symmetrically arranged. The second positioning points and the second protruding weld points are located on the same straight line. The second heat exchange plate has second through holes at both ends, and the outer periphery of the second through holes has an annular first sealing groove. The first sealing groove has a plurality of first circumferentially arranged first protruding weld points, which correspond to first concave weld points. The surface of the second heat exchange plate has a plurality of second point groups and third point groups arranged along the width direction. The second point groups are located above the third point groups, and the second point groups and third point groups are arranged alternately. The second heat exchange plate has a second sealing protrusion around its perimeter. The two long sides of the second sealing protrusion have a plurality of second concave weld points symmetrically arranged, which correspond to second protruding weld points. The four corners of the second heat exchange plate have fourth positioning points, which correspond to first positioning points. The middle of the long side of the second sealing protrusion has a plurality of third positioning points symmetrically arranged.

[0006] The first heat exchange plate has a first flange at both ends, and the second heat exchange plate has a second flange at both ends.

[0007] The first point group includes several first points arranged along the length of the first heat exchange plate. The first points are convex structures. The first positioning point is a concave structure. The second positioning point is a convex structure. The second positioning point includes two second protrusions and a second protrusion'. The second protrusion' is located between the two second protrusions, and the height of the second protrusion' is higher than the height of the second protrusion.

[0008] The second point group includes several second points arranged along the length of the second heat exchange plate, and the second points are concave structures; the third point group includes several third points arranged along the length of the second heat exchange plate, and the third points are convex structures; the third positioning point is a convex structure, and the fourth positioning point is a concave structure.

[0009] When the first heat exchange plate is on top and the second heat exchange plate is on the bottom, the first flange and the second flange are fitted together and locked together, and the first positioning point is embedded in the fourth positioning point; the second protrusion of the first heat exchange plate is fitted with the third positioning point of the lower second heat exchange plate, and the bottom surface of the first heat exchange plate is attached to and welded to the second sealing protrusion of the lower second heat exchange plate; the second concave weld point of the second heat exchange plate is attached to and welded to the second protrusion of the adjacent heat exchange plate group, and the bottom surface of the second sealing protrusion is attached to and welded to the top surface of the second protrusion.

[0010] When the first heat exchange plate is below and the second heat exchange plate is above, a first limiting surface is formed between the outer inclined surface of the second concave weld point and the outer inclined surface of the second protrusion; when the first heat exchange plate is above and the second heat exchange plate is below, a second limiting surface is formed between the outer inclined surface of the third positioning point and the inner inclined surface of the second protrusion.

[0011] Compared with the prior art, the advantages of this utility model are as follows: A heat exchanger plate assembly for an air-type brazed plate heat exchanger that is easy to assemble, wherein the first and second flanges interlock to provide a limiting function; the first heat exchanger plate has a first positioning point at each of its four corners, and the second heat exchanger plate has a fourth positioning point at each of its four corners; the first and fourth positioning points are embedded and arranged together to provide positioning and limiting functions during the assembly of the heat exchanger plates. A first limiting surface is formed between the outer inclined surface of the second concave weld point and the outer inclined surface of the second protrusion; multiple third positioning points are provided in the middle of the long side of the second heat exchanger plate, and a second limiting surface is formed between the outer inclined surface of the third positioning point and the inner inclined surface of the second protrusion; for heat exchanger plates with a length-to-width ratio of 15-25, this design avoids misalignment of the middle of the heat exchanger plate assembly during installation, facilitates alignment, improves accuracy, and saves time and effort. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first heat exchange plate in a heat exchange plate assembly of an easily assembled air-type brazed plate heat exchanger according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the second heat exchange plate in a heat exchange plate assembly of an easily assembled air-type brazed plate heat exchanger according to an embodiment of the present invention. Figure 3 This is a schematic diagram of a heat exchange plate assembly for an easily assembled air-type brazed plate heat exchanger according to an embodiment of the present invention. Figure 4 for Figure 3 Exploded view; Figure 5 This is a top view of the heat exchanger assembly (the first heat exchanger is on top). Figure 6 This is a top view of the heat exchanger assembly (the second heat exchanger is on top). Figure 7 for Figure 5 Sectional view of AA; Figure 8 for Figure 6 Sectional view of BB; In the figure, 1 is the first heat exchange plate, 101 is the air flow channel, 102 is the fluid medium flow channel, 2 is the second heat exchange plate, 3 is the first position, 4 is the second raised weld point, 5 is the first positioning point, 6 is the second positioning point, 6.1 is the second protrusion, 6.2 is the second protrusion, 7 is the first flange, 8 is the first through hole, 9 is the first sealing protrusion, 10 is the second position, 11 is the third position, 12 is the second sealing protrusion, 13 is the third positioning point, 14 is the fourth positioning point, 15 is the second flange, 16 is the second concave weld point, 17 is the first raised weld point, 18 is the first limiting surface, 19 is the second limiting surface, 20 is the second through hole, and 21 is the first concave weld point. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1-8 As shown in this embodiment, a heat exchanger plate assembly for an easily assembled air-type brazed plate heat exchanger includes multiple stacked heat exchanger plate groups with an aspect ratio of 15-25. Each heat exchanger plate group includes a first heat exchanger plate 1 and a second heat exchanger plate 2, with the first heat exchanger plate in the same group positioned above the second heat exchanger plate. The gap between the first heat exchanger plate and the second heat exchanger plate below it forms a fluid medium channel 102, and the gap between the second heat exchanger plate and the first heat exchanger plate in an adjacent heat exchanger plate group forms an air flow channel 101.

[0015] First through holes 8 are respectively opened at both ends of the first heat exchange plate 1: fluid medium inlet and fluid medium outlet. The outer periphery of the first through hole 8 has an annular first sealing protrusion 9. The first sealing protrusion 9 is provided with first concave weld points evenly distributed in a circumferential direction. The surface of the first heat exchange plate 1 is provided with multiple sets of first point positions evenly distributed along the width direction of the first heat exchange plate. Several second protruding weld points 4 are symmetrically arranged at intervals along the two long edges of the first heat exchange plate. First positioning points 5 are respectively provided at the four corners of the first heat exchange plate. Multiple second positioning points 6 are symmetrically provided at the middle edges of the two long edges of the first heat exchange plate. The second positioning points 6 and the second protruding weld points 4 are located on the same straight line.

[0016] The first point group includes several first points 3 arranged at intervals along the length of the first heat exchange plate. The first points are convex structures. The first positioning point is a concave structure, and the second positioning point is a convex structure. The second positioning point 6 includes two second protrusions 6.1 and a second protrusion '6.2. The second protrusion '6.2 is located at the center of the two second protrusions 6.1, and the height of the second protrusion '6.2 is higher than the height of the second protrusion 6.1.

[0017] The second heat exchange plate 2 has second through holes 20 at both ends: a fluid medium inlet and a fluid medium outlet. The outer periphery of each second through hole has an annular first sealing groove. Multiple circumferentially arranged first raised weld points 17 are provided on the first sealing groove, corresponding to first concave weld points. The surface of the second heat exchange plate has multiple sets of second and third point groups arranged along the width of the second heat exchange plate. The second point groups are located above the third point groups, and the second and third point groups are arranged alternately. The periphery of the second heat exchange plate has second sealing protrusions 12. Several second concave weld points 16 are symmetrically arranged on the two long sides of the second sealing protrusions 12, corresponding to second raised weld points 4. Fourth positioning points 14 are provided at each of the four corners of the second heat exchange plate, corresponding to first positioning points 5. Multiple third positioning points 13 are symmetrically arranged in the middle of the long sides of the second sealing protrusions 12.

[0018] The second point group includes several second points 10 arranged along the length of the second heat exchange plate, and the second points 10 have a concave structure; the third point group includes several third points 11 arranged along the length of the second heat exchange plate, and the third points 11 have a convex structure. The third positioning point 13 has a convex structure, and the fourth positioning point 14 has a concave structure.

[0019] The first heat exchange plate 1 has a first flange 7 at both ends, and the second heat exchange plate 2 has a second flange 15 at both ends.

[0020] When the first heat exchange plate is assembled on top and the second heat exchange plate is on the bottom, the first flange 7 and the second flange 15 fit together and are locked in place. The first positioning point 5 is embedded in the fourth positioning point 14, and the two work together to position and limit the heat exchange plates during assembly. The second protrusion 6.1 of the first heat exchange plate fits into the third positioning point 13 of the lower second heat exchange plate 2, and the bottom surface of the first heat exchange plate 1 is attached to and welded to the second sealing protrusion 12 of the lower second heat exchange plate 2. The second concave weld point 16 of the second heat exchange plate 2 is attached to and welded to the second protrusion 6.1 of the adjacent heat exchange plate group, and the bottom surface of the second sealing protrusion 12 is attached to and welded to the top surface of the second protrusion 6.2.

[0021] When the upper second heat exchange plate is combined with the lower first heat exchange plate of the adjacent heat exchange plate group, a first limiting surface 18 is formed between the outer inclined surface of the second concave weld point 16 and the outer inclined surface of the second protrusion 6.2; when the first heat exchange plate is on top and the second heat exchange plate is on the bottom, a second limiting surface 19 is formed between the outer inclined surface of the third positioning point 13 and the inner inclined surface of the second protrusion 6.1. The first limiting surface 18 and the second limiting surface play a positioning and limiting role.

[0022] The first heat exchange plate has first flanges at both ends, and the second heat exchange plate has second flanges at both ends. The first flanges and second flanges interlock to limit movement. The first heat exchange plate has first positioning points at each of its four corners, and the second heat exchange plate has fourth positioning points at each of its four corners. These first and fourth positioning points are interlocked and work together to position and limit movement during heat exchange plate assembly. Multiple second positioning points are located in the middle of the long side of the first heat exchange plate, with a first limiting surface formed between the outer bevel of the second concave weld point and the outer bevel of the second protrusion. Multiple third positioning points are located in the middle of the long side of the second heat exchange plate, with a second limiting surface formed between the outer bevel of the third positioning point and the inner bevel of the second protrusion. For heat exchange plates with an aspect ratio of 15-25, this design prevents misalignment of the heat exchange plate assembly during installation, facilitating alignment, improving accuracy, and saving time and effort.

[0023] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A heat exchange plate assembly for an easily assembled air-type brazed plate heat exchanger, characterized in that: It includes multiple sets of stacked heat exchange plate groups. Each heat exchange plate group includes a first heat exchange plate and a second heat exchange plate. The first heat exchange plate in the same group is located above the second heat exchange plate. The gap between the first heat exchange plate and the second heat exchange plate below it forms a fluid medium channel. The gap between the second heat exchange plate and the first heat exchange plate in the adjacent heat exchange plate group forms an air flow channel. The first heat exchange plate has first through holes at both ends, and the outer periphery of the first through hole has an annular first sealing protrusion. The first sealing protrusion has first concave weld points evenly distributed in a circumferential direction. The surface of the first heat exchange plate has multiple sets of first point groups evenly distributed along the width direction. The two long edges of the first heat exchange plate have several second protruding weld points arranged at intervals. The four corners of the first heat exchange plate have first positioning points. The middle edges of the two long edges of the first heat exchange plate have multiple second positioning points symmetrically arranged. The second positioning points and the second protruding weld points are located on the same straight line. The second heat exchange plate has second through holes at both ends, and the outer periphery of the second through holes has an annular first sealing groove. The first sealing groove has a plurality of first circumferentially arranged first protruding weld points, which correspond to first concave weld points. The surface of the second heat exchange plate has a plurality of second point groups and third point groups arranged along the width direction. The second point groups are located above the third point groups, and the second point groups and third point groups are arranged alternately. The second heat exchange plate has a second sealing protrusion around its perimeter. The two long sides of the second sealing protrusion have a plurality of second concave weld points symmetrically arranged, which correspond to second protruding weld points. The four corners of the second heat exchange plate have fourth positioning points, which correspond to first positioning points. The middle of the long side of the second sealing protrusion has a plurality of third positioning points symmetrically arranged.

2. The heat exchanger plate assembly of an easily assembled air-type brazed plate heat exchanger according to claim 1, characterized in that: The first heat exchange plate has a first flange at both ends, and the second heat exchange plate has a second flange at both ends.

3. The heat exchanger plate assembly of an easily assembled air-type brazed plate heat exchanger according to claim 1, characterized in that: The first point group includes several first points arranged along the length of the first heat exchange plate. The first point is a convex structure. The first positioning point is a concave structure. The second positioning point is a convex structure. The second positioning point includes two second protrusions and a second protrusion'. The second protrusion' is located between the two second protrusions, and the height of the second protrusion' is higher than the height of the second protrusion.

4. The heat exchange plate assembly of an easily assembled air-type brazed plate heat exchanger according to claim 1, characterized in that: The second point group includes several second points arranged along the length of the second heat exchange plate, and the second points are concave structures; the third point group includes several third points arranged along the length of the second heat exchange plate, and the third points are convex structures; the third positioning point is a convex structure, and the fourth positioning point is a concave structure.

5. The heat exchange plate assembly of an easily assembled air-type brazed plate heat exchanger according to claim 2, characterized in that: When the first heat exchange plate is on top and the second heat exchange plate is on the bottom, the first flange and the second flange are fitted together and locked together, and the first positioning point is embedded in the fourth positioning point; the second protrusion of the first heat exchange plate is fitted with the third positioning point of the lower second heat exchange plate, and the bottom surface of the first heat exchange plate is attached to and welded to the second sealing protrusion of the lower second heat exchange plate; the second concave weld point of the second heat exchange plate is attached to and welded to the second protrusion of the adjacent heat exchange plate group, and the bottom surface of the second sealing protrusion is attached to and welded to the top surface of the second protrusion.

6. The heat exchanger plate assembly of an easily assembled air-type brazed plate heat exchanger according to claim 5, characterized in that: When the first heat exchange plate is below and the second heat exchange plate is above, a first limiting surface is formed between the outer inclined surface of the second concave weld point and the outer inclined surface of the second protrusion; when the first heat exchange plate is above and the second heat exchange plate is below, a second limiting surface is formed between the outer inclined surface of the third positioning point and the inner inclined surface of the second protrusion.

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