CN217058468U - Heat exchange plate of plate heat exchanger - Google Patents

Abstract

The invention provides a heat exchange plate of a plate heat exchanger, which comprises a plate body, wherein the plate body comprises a heat exchange area, the surface of the heat exchange area is provided with a plurality of first flow guide parts which are arranged in a quadrilateral structure, each first flow guide part comprises a first flow guide groove and a second flow guide groove, the protruding directions of the first flow guide grooves are opposite, and the first flow guide grooves and the second flow guide grooves form four sides of the first flow guide parts; when the sheet body is assembled, the first diversion grooves and the second diversion grooves which correspond to each other in the same group form a flow passage for fluid to pass through.

Description

A heat exchange plate of a plate heat exchanger

technical field

The present disclosure relates to the field of heat exchangers, and in particular, to a heat exchange plate of a plate heat exchanger.

Background technique

Plate heat exchanger is a kind of high-efficiency heat exchanger, which is widely used in air-conditioning equipment, building heating and food light industry and other industries. The plate heat exchanger consists of the following parts: a set of thin metal heat exchange plates pressed together, sealing gaskets and a pressing device. The surface of thin metal heat exchange plates is usually processed into special shapes, such as corrugated or herringbone shapes. The edges of the two adjacent plates are placed with clamping gaskets or sealing gaskets to prevent the liquid from flowing out, so as to achieve the purpose of sealing. The hot and cold fluids flow alternately on both sides of the heat exchange plate, and conduct heat transfer through the heat exchange area of the heat exchange plate.

The heat exchange area of the existing heat exchange plate is usually corrugated or herringbone shape, the structure is simple, the fluid disturbance is not strong, and the heat exchange efficiency needs to be improved.

Utility model content

The present disclosure provides a heat exchange plate of a plate heat exchanger to at least solve the above technical problems existing in the prior art.

The present disclosure provides a heat exchange plate of a plate heat exchanger, which includes a plate body, the plate body includes a heat exchange area, and a surface of the heat exchange area is provided with a plurality of first flow guides arranged in a quadrangular structure , the first guide portion includes a first guide groove and a second guide groove with opposite convex directions, and the first guide groove and the second guide groove constitute the first guide groove. Four sides; when the plate body groups are installed in pairs, the first guide grooves and the second guide grooves corresponding to the same group form a flow channel for fluid to pass through.

In an embodiment, the first guide groove and the second guide groove are both elongated structures.

In an embodiment, each side of the first guide portion includes at least two of the first guide grooves or the second guide grooves, and the adjacent sides of the first guide portion are The bulge direction is different.

In an embodiment, the bottom edge of the first air guide portion is disposed inclined with respect to the horizontal direction, and the included angle between the bottom edge of the first air guide portion and the horizontal direction is greater than or equal to 15 degrees.

In an optional implementation manner, the first flow guide parts are arranged in the order of rows and columns on the heat exchange area, and adjacent first flow guide parts share adjacent sides.

In a possible embodiment, the heat exchange area further includes a second flow guide portion, and the second flow guide portion includes a first side at the top of the heat exchange area and a second side at the bottom, and a second side at the bottom of the heat exchange area. The third and fourth sides on the left and right sides of the hot zone;

The first side and the second side are formed by a plurality of groups of the first guide grooves arranged at intervals, and each group of the first guide grooves includes at least two; the third side and the fourth side are formed by Multiple groups of the second guide grooves arranged at intervals are formed, and each group of the second guide grooves includes at least two.

In an alternative embodiment, each group of the first guide grooves of the first side and the second side is parallel to the side of the first guide portion, and the third side and the first guide Each group of the second guide grooves on the four sides is parallel to the bottom edge of the first guide portion.

In one possible embodiment, the heat exchange area further includes a third air guide part, and the third air guide part is partially distributed inside the quadrilateral structure of the first air guide part; the third air guide part further includes: The first guide grooves are arranged alternately with each group of the first side and the second side of the second guide portion, and are arranged with each group of the third side and the fourth side of the second guide portion. The second diversion grooves are staggered.

In an embodiment, the third guide portion includes a third guide groove and a fourth guide groove with opposite bulge directions, and the third guide groove and the fourth guide groove constitute the In the quadrilateral structure of the third air guide portion, the four sides of the third air guide portion and the four sides of the first air guide portion are respectively corresponding and arranged in parallel.

In an embodiment, the plate body further includes a flow splitting area, the flow splitting area is arranged in a triangular structure, and the flow splitting area is arranged at the upper and lower ends of the heat exchange area.

Based on the above scheme, the present disclosure has the following beneficial effects:

(1) The turbulence of the flow field is increased by arranging the first guide portion in the heat exchange area in a quadrangular structure, and the first guide portion includes a first guide groove and a second guide groove with opposite convex directions. . When the pair is installed, a flow channel for fluid circulation is formed, which improves the rigidity of the plate body; at the same time, compared with the corrugated and herringbone shape in the prior art, the quadrangular structure further improves the fluid in the heat exchanger. Turbulence;

(2) At least two elongated first guide grooves or second guide grooves are arranged to form each side of the first guide portion, and the length of each side of the first guide portion is further increased to increase heat exchange. area;

(3) The inclined quadrilateral structure, while further improving the turbulence degree, limits the flow velocity of the fluid and improves the heat exchange effect;

(4) The first diversion parts are distributed in a plurality of rows and columns and are closely connected, which improves the utilization efficiency of the entire heat exchange area;

(5) The first side and the second side are arranged at the top and bottom of the heat exchange area, the third step and the fourth side are arranged on both sides, and the second guide portion is arranged around the entire first guide portion to further improve the entire heat exchange. The path length of the fluid flow in the zone slows down the flow speed and further increases the heat exchange area;

(6) The third guide part is further provided, so that when the fluid flows to the second guide part and the first guide part to form the flow path, a higher-order turbulent flow is formed inside the flow path, which is already in the existing On the basis of further improving the heat exchange effect;

(7) By setting the splitting area, the entry and exit of the fluid are provided, so that the fluid enters and exits the heat exchange area in an orderly manner.

Description of drawings

FIG. 1 is a schematic diagram showing the structure of a plate body of a heat exchange plate provided in an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a heat exchange area of a heat exchange plate provided in an embodiment of the present disclosure;

3 is a schematic diagram of a heat exchange area of a heat exchange plate provided in another embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a heat exchange area of a heat exchange plate provided in another embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a plurality of heat exchange zones of a heat exchange plate provided in an embodiment of the present disclosure;

Figure 6 shows an enlarged view of the detail in Figure 5;

FIG. 7 is a partial top-view structural schematic diagram of FIG. 5;

FIG. 8 is a partial side structural schematic diagram of FIG. 5 .

In the figure: 1. Plate body; 2. Heat exchange area; 3. First guide part; 31. First guide groove; 32. Second guide groove; 4. Flow channel; 5. Second guide 51. The first side; 52. The second side; 53. The third side; 54. The fourth side; 6. The third guide part; 61. The third guide groove; 62. The fourth guide groove; 7. Diversion area.

Detailed ways

In order to make the purpose, features and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure. The embodiments are only some, but not all, embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present disclosure.

In order to improve the turbulence degree and the heat exchange effect, as shown in FIG. 1 to FIG. 7 , an embodiment of the present disclosure provides a heat exchange plate of a plate heat exchanger, including a plate body 1 , and the plate body 1 includes a heat exchange plate. The hot zone 2 and the diversion zone 7, the diversion zone 7 is arranged at the upper and lower ends of the heat exchange zone 2, the heat exchange zone 2 is arranged in a rectangular structure, and the diversion zone 7 can be arranged in a triangular structure, but the specific structure is not limited here, only It is only required that the fluid enters the heat exchange area 2 from the splitting zone 7 or is output from the heat exchange zone 2 to the splitting zone 7 . It should be understood that, the functions here are all implemented after the heat exchange plates are installed in the plate heat exchanger through pairs.

As shown in FIG. 1 and FIG. 2 , the surface of the heat exchange area 2 is provided with a plurality of first guide parts 3 arranged in a quadrangular structure. The first guide parts 3 include first guide grooves 31 and The second guide groove 32, the first guide groove 31 and the second guide groove 32 constitute the four sides of the first guide part 3; The convex directions of the second diversion grooves 32 are opposite. It can be seen that when the first diversion groove 31 is convex on one side, the second diversion groove 32 is concave; if the first diversion groove 31 is convex on one side If it is concave, the second guide groove 32 is convex on this side.

When the plate bodies 1 are installed in pairs, the first diversion grooves 31 and the second diversion grooves 32 corresponding to the same group constitute the flow channel 4 for the fluid to pass through; The first guide groove 31 is convex, and the second guide groove 32 is concave, so when the two plate bodies 1 are assembled in groups, the corresponding first guide grooves 31 are in close contact with each other, and the corresponding second guide grooves 31 are in close contact with each other. The guide grooves 32 are separated from each other to form a flow channel 4 through which the fluid can flow.

Preferably, the first guide groove 31 and the second guide groove 32 are both elongated structures.

Preferably, each side of the first guide portion 3 includes at least two first guide grooves 31 or second guide grooves 32. The protruding directions of the adjacent sides of the first guide portion 3 are different. Therefore, the protruding directions of the two opposite sides of the first air guide portion 3 should be the same.

Preferably, the bottom edge of the first air guide portion 3 is inclined relative to the horizontal direction, and the included angle between the bottom edge of the first air guide portion 3 and the horizontal direction is greater than or equal to 15 degrees, and the specific inclination angle should be set according to the heat exchange area. 2 The length or fluid needs to be adjusted according to the actual application situation, such as adjusting by detecting the turbulence degree inside the heat exchange zone 2 under the current structure.

The first flow guide parts 3 are arranged in the order of rows and columns on the heat exchange area 2 , and adjacent first flow guide parts 3 share adjacent sides. In this solution, the four sides of the inner first air guide portion 3 are shared with the four adjacent first air guide portions 3 located in the up, down, left, and right directions. Therefore, the first air guide portions 3 of the heat exchange area 2 are arranged in a row compact, high space utilization.

As shown in FIG. 3 , preferably, the heat exchange area 2 further includes a second flow guide portion 5 , and the second flow guide portion 5 includes a first side 51 located at the top of the heat exchange area 2 , a second side 52 at the bottom, and a second side 52 located at the top of the heat exchange area 2 . The third side 53 and the fourth side 54 on the left and right sides of the hot zone 2;

The first side 51 and the second side 52 are formed by a plurality of groups of first guide grooves 31 arranged at intervals, and each group of the first guide grooves 31 includes at least two; the third side 53 and the fourth side 54 are formed by a plurality of groups of spaced apart The second guide grooves 32 are formed, and each group of second guide grooves 32 includes at least two.

Each group of the first guide grooves 31 of the first side 51 and the second side 52 is parallel to the side of the first guide portion 3 , and each group of the second guide grooves 32 of the third side 53 and the fourth side 54 is parallel to the side of the first guide portion 3 . The bottom edges of a guide portion are parallel.

The at least two first guide grooves 31 in each group of the first side 51 and the second side 52 are parallel to the side of the first guide portion 3, so they are also inclined with respect to the horizontal direction, and each group The at least two first guide grooves 31 are in the same direction as the bulge of the side of the first guide portion 3, and opposite to the bulge direction of the bottom edge of the second guide portion 5;

Since the at least two second guide grooves 32 of each group of the third side 53 and the fourth side 54 are parallel to the bottom edge of the first guide portion 3, they are also inclined with respect to the horizontal direction, and at least two second guide grooves 32 of each group The two second guide grooves 32 have the same bulge direction as the bottom edge of the first guide part 3 , and are opposite to the bulge direction of the side edge of the second guide part 5 .

As shown in FIG. 4 , preferably, the heat exchange zone 2 further includes a third air guide portion 6, and the third air guide portion 6 is provided with a plurality of them, including the part distributed inside the quadrangular structure of the first air guide portion 3; and It includes each set of first guide grooves 31 staggered with the first side 51 and the second side 52 of the second guide portion 5 , and each set of the first guide grooves 31 and the third side 53 and the fourth side 54 of the second guide portion 5 . The part of the group of second diversion grooves 32 arranged in a staggered manner.

The third guide portion 6 includes a third guide groove 61 and a fourth guide groove 62 with opposite bulge directions, and the third guide groove 61 and the fourth guide groove 62 form a quadrilateral of the third guide portion 6 In structure, the four sides of the third air guide portion 6 are respectively corresponding to and parallel to the four sides of the first air guide portion 3 . It should be understood that the third air guide portion 6 can also be regarded as a reduced version of the first air guide portion 3 , for example, the bulge direction and the inclination angle are the same, but the specific structures may be different.

As shown in FIG. 5 and FIG. 6 , preferably, the first guide groove 31 , the second guide groove 32 , the third guide groove 61 and the fourth guide groove 62 are all truncated cone-shaped convex structures.

As shown in Figures 7 and 8, the top and side views of the three heat exchange plates in Figure 5 are shown in the installed state, including a pair of paired plate bodies 1 and an adjacent third plate The sheet body 1, through the presentation of the structure, the installation relationship between the sheet bodies 1 and the formation of the flow channel 4 can be seen.

It should be understood that a sealing strip is also required when installing the heat exchange plate in a pair, so that the flow channel 4 for fluid circulation in the installed heat exchange plate is in a sealed state, but this solution is not specifically limited.

In this solution, the first guide part 3 , the second guide part 5 and the third guide part 6 are arranged to act together on the heat exchange area 2 , which greatly increases the disturbance of the fluid, so that the fluid remains stable even at a low flow rate. It can present a turbulent flow state and improve the heat exchange efficiency.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A heat exchange plate of a plate heat exchanger, characterized in that it comprises a plate body (1), and the plate body (1) comprises a heat exchange area (2), and the heat exchange area of the heat exchange area (2) is The surface is provided with a plurality of first guide parts (3) arranged in a quadrilateral structure, and the first guide parts (3) include a first guide groove (31) and a second guide groove ( 32), the first guide groove (31) and the second guide groove (32) constitute the four sides of the first guide part (3); the plate body (1) is installed in pairs At the same time, the first guide groove (31) and the second guide groove (32) corresponding to the same group constitute a flow channel (4) for the fluid to pass through. 2 . The heat exchange plate of a plate heat exchanger according to claim 1 , wherein the first guide groove ( 31 ) and the second guide groove ( 32 ) are both elongated structures. 3 . . 3. The heat exchange plate of a plate heat exchanger according to claim 1, wherein each side of the first guide portion (3) comprises at least two first guide grooves (31) Or in the second guide groove (32), the protruding directions of the adjacent sides of the first guide part (3) are different. 4. The heat exchange plate of a plate heat exchanger according to any one of claims 1 to 3, characterized in that, the bottom edge of the first air guide portion (3) is inclined relative to the horizontal direction, and the The included angle between the bottom edge of the first air guide portion (3) and the horizontal direction is greater than or equal to 15 degrees. 5 . The heat exchange plate of a plate heat exchanger according to claim 4 , wherein the first flow guides ( 3 ) are arranged in the order of rows and columns on the heat exchange zone ( 2 ). 6 . , and the adjacent first air guide parts (3) share adjacent sides. 6. The heat exchange plate of a plate heat exchanger according to any one of claims 1 to 3, wherein the heat exchange zone (2) further comprises a second flow guide (5), the second The flow guiding part (5) comprises a first side (51) at the top of the heat exchange zone (2), a second side (52) at the bottom and a third side at the left and right sides of the heat exchange zone (2) (53) and the fourth side (54); The first side (51) and the second side (52) are formed by a plurality of sets of the first guide grooves (31) arranged at intervals, and each group of the first guide grooves (31) includes at least two The third side (53) and the fourth side (54) are formed by a plurality of groups of the second guide grooves (32) arranged at intervals, and each group of the second guide grooves (32) at least includes two indivual. 7. The heat exchange plate of a plate heat exchanger according to claim 6, characterized in that, each group of the first guide grooves ( 31) Parallel to the side edges of the first guide portion (3), each group of the second guide grooves (32) of the third side (53) and the fourth side (54) is connected to the The bottom edges of the first air guide portion (3) are parallel. 8 . The heat exchange plate of a plate heat exchanger according to claim 7 , wherein the heat exchange zone ( 2 ) further comprises a third flow guide portion ( 6 ), the third flow guide portion ( 6 ). ) part is distributed inside the quadrilateral structure of the first guide part (3); the third guide part (6) is also connected with the first side (51) and the first side of the second guide part (5). Each group of the first diversion grooves (31) on the two sides (52) is staggered and arranged with each group of the third side (53) and the fourth side (54) of the second diversion part (5). The second guide grooves (32) are arranged in a staggered manner. 9 . The heat exchange plate of a plate heat exchanger according to claim 8 , wherein the third guide portion ( 6 ) comprises a third guide groove ( 61 ) and a fourth guide groove with opposite convex directions. 10 . A flow groove (62), the third flow guide groove (61) and the fourth flow guide groove (62) constitute a quadrilateral structure of the third flow guide portion (6), and the third flow guide portion ( The four sides of 6) are respectively corresponding to and parallel to the four sides of the first air guide portion (3). 10 . The heat exchange plate of a plate heat exchanger according to claim 9 , wherein the plate body ( 1 ) further comprises a flow dividing area ( 7 ), and the flow dividing area ( 7 ) is arranged in the The upper and lower ends of the hot zone (2).

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