Plate structure of efficient heat exchanger

Abstract

The utility model relates to an efficient heat exchanger plate structure which comprises a plate, medium through holes are formed in four corners of the plate, and ripples are arranged in the middle of the plate. According to the efficient heat exchanger plate sheet structure, the arc-shaped sections, close to the center of the plate sheet, of the medium through holes are lengthened, the arc-shaped angles are smoother, more media can flow to the center of the plate sheet from the arc-shaped sections, the arc-shaped grooves in the distribution area and the flow dividing area are connected with the grooves in the arc-shaped sections, the media are guided to the other side of the plate sheet, and the heat exchange efficiency is improved. Therefore, the whole plate is fully utilized, and the heat exchange efficiency of the plate is improved. In addition, a sealing groove is formed in the position, close to the edge, of the plate, the original sealing groove is linearly formed along the edge of the plate, an arc-shaped groove is designed on the outer side of the middle of the medium through hole and the corrugation, a conventional linear groove is formed in the outer side of the corrugation, the center of the arc-shaped groove and the center of the linear groove are not located on the same straight line, and therefore the stress of the plate is dispersed, and cooling water can be better shunted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of high-efficiency heat exchanger sheet structure. BACKGROUND

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger, which has high heat transfer efficiency, light weight, small footprint, easy maintenance and many other advantages. Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with certain corrugated shape. Thin rectangular channels are formed between various sheets, and heat exchange is carried out through the sheets.

[0003] The plate structure of the heat exchanger determines the heat exchange effect of the heat exchanger. Some media flowing on the same side can only pass through half of the area of the plate vertically, and the other half of the plate cannot perform heat exchange function, so the whole plate cannot be fully utilized, resulting in low heat exchange efficiency of the plate.

[0004] In addition, the sealing grooves on the outer side of the plate are all arranged in straight lines, which causes large stress on the plate and easy damage. SUMMARY

[0005] The utility model aims at overcoming the above-mentioned shortcomings, and provides a kind of high-efficiency heat exchanger plate structure with high heat exchange efficiency.

[0006] The utility model is achieved as follows:

[0007] A kind of high-efficiency heat exchanger plate structure, it includes plate, medium through hole is set up on the four corners of plate, the middle of plate is corrugated, the two ends of medium through hole close to the bottom edge and side edge of plate are stretched outward, so that the arc segment of medium through hole close to the center of plate is lengthened.

[0008] The medium through hole is a special-shaped hole, which is similar to a triangle with three sides stretched into an arc and a straight line. The straight line is the side close to the top or bottom of the plate, the arc is the side close to the side of the plate, and the last side close to the inside of the plate is an arc segment. The arc segment is the longest side, and finally forms a shape similar to a scallop.

[0009] The upper region of the corrugation is a distribution area, and the grooves in the distribution area are arranged in an arc shape. A distribution area is also provided between the distribution area and the arc segment. The arc grooves in the distribution area and the distribution area are connected to the grooves in the arc segment.

[0010] The plate is provided with a sealing groove near the edge, the medium through hole and the outside of the corrugation in the middle are designed as arc grooves, and the outside of the corrugation is a conventional straight groove. The centers of the arc grooves and the straight grooves are not on the same straight line.

[0011] The center of the arc-shaped groove and the center line of the plate are at a distance L1, the center of the straight line groove and the center line of the plate are at a distance L2, L1 is greater than L2, and the upper portion and the lower portion of the middle section of the arc-shaped groove are at a distance less than the distance from the straight line groove to the center line of the plate.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] The medium through hole of the plate structure of the high-efficiency heat exchanger is elongated at the arc-shaped section close to the center of the plate, the arc-shaped angle is more gentle, more medium can flow to the center of the plate from the arc-shaped section, the arc-shaped groove in the distribution area and the flow distribution area is connected with the groove in the arc-shaped section, the medium is guided to the other side of the plate, and then the whole plate is fully utilized, and the heat exchange efficiency of the plate is improved.

[0014] In addition, the sealing groove is arranged at the edge of the plate, the original sealing groove is arranged in a straight line along the edge of the plate, the arc-shaped groove is designed outside the medium through hole and the corrugation in the utility model, the outer side of the corrugation is a conventional straight line groove, the center of the arc-shaped groove and the center line of the plate are at a distance L1, the center of the straight line groove and the center line of the plate are at a distance L2, L1 is greater than L2, so that the centers of the arc-shaped groove and the straight line groove are not in a same straight line, plate stress is dispersed, and the cooling water can be better distributed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure diagram of the plate structure of the high-efficiency heat exchanger.

[0016] Wherein: plate 1, medium through hole 2, arc line 2.1, straight line 2.2, corrugation 3, arc-shaped section 4, flow distribution area 5, distribution area 6, sealing groove 7, arc-shaped groove 8, straight line groove 9. DETAILED DESCRIPTION

[0017] Referring to Figure 1 The utility model relates to a plate structure of high-efficiency heat exchanger, it includes plate 1, is set up with medium through hole 2 on four corners of plate 1, and the middle of plate 1 is corrugation 3.

[0018] The medium through hole 2 is not the traditional circle, it is special-shaped hole, the special-shaped hole is stretched outwards at two ends close to the bottom edge and the side edge of plate 1, so that the medium through hole 2 is elongated at the arc-shaped section 4 close to the center of plate 1, three sides are respectively drawn into arc line 2.1 and straight line 2.2, wherein straight line 2.2 is close to one side of the top or bottom of plate 1, arc line 2.1 is close to one side of the side of plate 1, and the last one close to the inner side of plate 1 is arc-shaped section 4, arc-shaped section 4 is the longest side, and finally forms the special-shaped hole similar to scallop shape, compared with the original round hole, the arc-shaped angle is more gentle, more medium can flow to the center of plate 1 from arc-shaped section 4.

[0019] The upper area of the corrugation 3 is a distribution area 5, the groove in the distribution area 5 is arranged in an arc shape, and a distribution area 6 is further arranged between the distribution area 5 and the arc-shaped section 4, the arc-shaped groove in the distribution area 6 is also opened, the arc-shaped grooves in the distribution area 6 and the distribution area 5 are connected with the groove in the arc-shaped section 4, for guiding the medium to the other side of the plate 1, and then fully utilizing the whole plate, and improving the heat exchange efficiency of the plate.

[0020] The plate 1 is provided with a sealing groove 7 near the edge, the outer side between the medium through hole 2 and the corrugation 3 is designed as an arc-shaped groove 8, and the outer side of the corrugation 3 is a conventional straight groove 9, the center of the arc-shaped groove 8 and the center line of the plate 1 are at a distance L1, the straight groove 9 and the center line of the plate 1 are at a distance L2, L1 is greater than L2, the upper part and the lower part of the middle section of the arc-shaped groove 8 to the center line of the plate 1 are at a distance less than the distance from the straight groove 9 to the center line of the plate 1, so that the center of the arc-shaped groove 8 and the straight groove 9 are not in the same straight line, thereby dispersing the stress of the plate, and better distributing the cooling water.

Claims

1. A high-efficiency heat exchanger plate structure, characterized in that: It includes a plate with medium through holes at the four corners of the plate and a corrugated middle. The two ends of the medium through holes near the bottom and sides of the plate are stretched outward, so that the medium through holes are elongated in the arc-shaped section near the center of the plate.

2. The high-efficiency heat exchanger plate structure according to claim 1, characterized in that: The medium through-hole is an irregularly shaped hole, which is similar to a triangle with three sides that are respectively drawn into arcs and straight lines. The straight line is the side near the top or bottom of the plate, the arc is the side near the side of the plate, and the last one near the inner side of the plate is an arc segment, which is its longest side, ultimately forming a scallop-like shape.

3. The high-efficiency heat exchanger plate structure according to claim 1, characterized in that: The area above the corrugations is a diversion zone, and the grooves in the diversion zone are arranged in an arc shape. A distribution zone is also provided between the diversion zone and the arc segment, and an arc-shaped groove is also provided in the distribution zone. The arc-shaped grooves in the distribution zone and the diversion zone are connected to the grooves in the arc segment.

4. The high-efficiency heat exchanger plate structure according to claim 1, characterized in that: The plate is provided with a sealing groove near the edge. The outer side of the medium through hole and the corrugation is designed as an arc groove, while the outer side of the corrugation is a straight groove. The centers of the arc groove and the straight groove are not on the same straight line.

5. The high-efficiency heat exchanger plate structure according to claim 4, characterized in that: The distance between the center of the arc-shaped groove and the center line of the plate is L1, and the distance between the straight groove and the center line of the plate is L2. L1 is greater than L2. The distance from the upper and lower parts of the middle section of the arc-shaped groove to the center line of the plate is less than the distance from the straight groove to the center line of the plate.

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