CN216385215U

CN216385215U - Asymmetric binary heat exchange plate

Info

Publication number: CN216385215U
Application number: CN202122950411.5U
Authority: CN
Inventors: 张永庆; 黄兴存
Original assignee: Shenzhen Aikemike Technology Co ltd
Current assignee: Shenzhen Aikemike Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-26
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses an asymmetric binary heat exchange plate, and relates to the technical field of air cooling. The two-dimensional heat exchange plate comprises heat exchange plates, wherein the two heat exchange plates are in sealed butt joint to form a group of plate type heat exchange plate groups, each heat exchange plate comprises heat exchange sheets, a plurality of primary plate grains which are linearly arranged are arranged on the inner side surfaces of the heat exchange sheets, and a plurality of secondary plate grains which are mutually crossed with the primary plate grains are arranged between every two adjacent primary plate grains; at least two angle holes communicated with the primary plate grains and the secondary plate grains are arranged on the heat exchange fins. According to the utility model, different primary plate patterns and secondary plate patterns are arranged according to the flow characteristics of liquid and gas, so that the flow area of a gas side can be increased, the efficiency of gas-water heat exchange is maximized, the wind resistance of the gas side is reduced, the power loss is reduced, and the purposes of energy conservation and efficiency improvement are achieved.

Description

Asymmetric binary heat exchange plate

Technical Field

The utility model relates to the technical field of air cooling, in particular to an asymmetric binary heat exchange plate.

Background

The plate heat exchanger has the advantages of high heat transfer coefficient, good pressure and temperature resistance, low temperature difference of tail end heat exchange, small overall equipment volume, light weight, difficult scaling, easy cleaning and the like, and can be widely applied to the fields of petrochemical industry, food and medicine production, power station waste heat recovery and the like.

When using plate heat transfer technique for air cooling field, because the density and the volume of gas and liquid are different, lead to the gaseous volume flow inequality of plate heat exchanger both sides and liquid, the resistance is inequality, causes the poor problem of heat exchange efficiency. Meanwhile, the existing plate heat exchanger generally adopts symmetrical plate patterns, and the heat exchange medium flows stably, so that the effective contact area of the heat exchange medium and the heat exchanger is reduced, and the heat exchange efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an asymmetric binary heat exchange plate, which aims to solve the problems of poor heat exchange efficiency caused by unequal volume flow and resistance of gas and liquid at two sides of a plate heat exchanger due to different densities and volumes of the gas and the liquid; the heat exchange medium of the existing plate heat exchanger flows more stably, the effective contact area of the heat exchange medium and the heat exchanger is reduced, and the heat exchange efficiency is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: an asymmetric binary heat exchange plate comprises heat exchange plates, wherein two heat exchange plates are in sealed butt joint to form a group of plate type heat exchange groups, each heat exchange plate comprises heat exchange sheets, a plurality of primary plate patterns which are linearly arranged are arranged on the inner side surfaces of the heat exchange sheets, and a plurality of secondary plate patterns which are mutually crossed with the primary plate patterns are arranged between every two adjacent primary plate patterns; the heat exchange fins are at least provided with two corner holes.

Preferably, the inner side surface of the heat exchange plate and the peripheries of the primary plate pattern and the secondary plate pattern are provided with sealing grooves, two corresponding sealing grooves are arranged in a mirror symmetry manner, and the two sealing grooves are connected in a sealing manner through sealing rubber gaskets.

Preferably, a plurality of flow isolation parts are arranged on the heat exchange plate and in the primary plate pattern and the secondary plate pattern in a staggered manner, and the primary plate pattern and the secondary plate pattern are divided by the plurality of flow isolation parts to form a plurality of flow areas which are communicated end to end.

Preferably, the primary plate patterns and the secondary plate patterns of the two heat exchange plates corresponding to the plate heat exchange group in one group are arranged in a staggered manner.

Preferably, a plurality of supporting parts are arranged on the outer side of the heat exchange plate.

Preferably, a plurality of the supporting portions are disposed around the outer side of the sealing groove.

Preferably, the primary plate patterns and the secondary plate patterns are manufactured in a mode of pressing by a mold.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, different primary plate patterns and secondary plate patterns are arranged according to the flow characteristics of liquid and gas, so that the flow area of the gas side can be increased, the efficiency of gas-water heat exchange is maximized, the wind resistance of the gas side is reduced, the power loss is reduced, and the purposes of energy conservation and efficiency improvement are achieved.

2. According to the utility model, the primary plate grains and the secondary plate grains are arranged in a mutually crossed manner, and the liquid channel and the gas channel form an asymmetric characteristic, so that turbulence in the medium flowing process is increased, the heat exchange area is increased, and the heat exchange efficiency is greatly improved.

3. The utility model can solve the problems of unequal volume flow and unequal resistance at two sides during gas-water heat exchange by asymmetric arrangement, and further improves the efficiency of gas-liquid heat exchange.

4. According to the utility model, the two corresponding secondary plate patterns in the plate heat exchange group are arranged in a staggered manner, and the spaces between the two corresponding secondary plate patterns form a corrugated structure, so that when heat exchange liquid passes through the secondary plate patterns, the heat exchange liquid can form turbulent flow during flowing, the heat exchange area is increased, and the heat exchange efficiency is effectively improved.

Drawings

FIG. 1 is a first view (exploded view) illustrating the fitting of two heat exchange plates according to the present invention;

FIG. 2 is a second view (combination view) of the two heat exchange plates of the present invention;

FIG. 3 is a schematic view of a first (inner side) configuration of a heat exchange plate according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 3 in accordance with the present invention;

FIG. 6 is a second schematic structural view (outer side) of the heat exchange plate of the present invention;

FIG. 7 is a diagram illustrating the flow of a heat exchange liquid in a heat exchange plate according to the present invention;

FIG. 8 is a first view (exploded view) of the plate heat exchange unit according to the present invention;

fig. 9 is a diagram (combination view) of the composition mode of the plate heat exchange unit.

In the figure:

1-a plate-type heat exchange group,

11-heat exchange plate, 111-heat exchange plate, 112-primary plate pattern, 113-secondary plate pattern, 114-flow isolation part, 115-sealing groove, 116-corner hole and 117-supporting part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, fig. 2 and fig. 7, an asymmetric binary heat exchange plate includes heat exchange plates 11, two heat exchange plates 11 are in sealed butt joint to form a group of plate heat exchange sets 1, each heat exchange plate 11 includes a heat exchange plate 111, a plurality of linear primary plate patterns 112 are arranged on an inner side surface of each heat exchange plate 111 (the side opposite to the corresponding two heat exchange plates 111 is the inner side), and a plurality of secondary plate patterns 113 are arranged between two adjacent primary plate patterns 112 and are mutually crossed with the primary plate patterns 112; the heat exchanging plate 111 is provided with at least two corner holes 116 communicated with the primary plate patterns 112 and the secondary plate patterns 113.

Preferably, the primary plate patterns 112 and the secondary plate patterns 113 are arranged perpendicular to each other.

Specifically, as shown in fig. 1-3, fig. 6 and fig. 8-9, the shape and size of the heat exchanger plate 111 and the primary corrugation 112 and the secondary corrugation 113 can be set adaptively according to the actual plate type and application requirements. In this embodiment, the application to a plate-type gas-liquid heat exchanger is taken as an example: the length of the heat exchange plate 111 is 2200mm, and the width of the heat exchange plate 111 is 333 mm; the primary plate patterns 112 are arranged in a V-shaped structure with the depth of 15mm, and the secondary plate patterns 113 are arranged in a V-shaped structure with the depth of 5 mm. Thus, when the gas-liquid heat exchanger is carried out, after the two heat exchange plates 11 are in sealed butt joint, a liquid channel for liquid to pass through and exchange heat is formed in the space between the two heat exchange plates 11, the two heat exchange plates 11 are in sealed butt joint to form a group of plate type heat exchange groups 1, a plurality of groups of plate type heat exchange groups 1 are overlapped to form a heat exchange plate group, and a gas channel for gas to pass through and exchange heat is formed in the space between the adjacent two plate type heat exchange groups 1. During heat exchange, circulation of heat exchange liquid inside the plate type heat exchange groups 1 is achieved through the angle holes 116, and gas exchanges heat with the heat exchange liquid between two adjacent plate type heat exchange groups 1. In this embodiment, according to the flowing characteristics of liquid and gas, the setting size of the first-stage plate patterns 112 is larger than that of the second-stage plate patterns 113, so that the flow area of the gas side can be increased, the efficiency of gas-water heat exchange is maximized, the wind resistance of the gas side is reduced, the power loss is reduced, and the purposes of energy conservation and efficiency improvement are achieved. The primary plate patterns 112 and the secondary plate patterns 113 are arranged in an intersecting manner, and preferably, as shown in fig. 8, the corresponding primary plate patterns 112 and the corresponding secondary plate patterns 113 in two adjacent groups of the plate heat exchange groups 1 are arranged in an intersecting manner. Therefore, the liquid channel and the gas channel form asymmetric characteristics, turbulence in the flowing process of the medium is increased, the heat exchange area is increased, and the heat exchange efficiency is greatly improved. Asymmetric setting can solve the not equidistance of both sides volume flow, the not equidistance problem of resistance simultaneously when the air water heat transfer.

Specifically, the corresponding corner holes 116 between two adjacent plate heat exchange sets 1 are communicated through a sealing ring. Namely, the angle holes 116 for liquid feeding are communicated in a sealing way through the sealing ring; the corner holes 116 for discharging liquid are communicated in a sealing manner through sealing rings, so that the heat exchange liquid can conveniently circulate among different plate type heat exchange groups 1.

As a specific implementation manner, as shown in fig. 3 and fig. 5, sealing grooves 115 are provided on the inner side surfaces of the heat exchange plates 11 and located at the peripheries of the primary plate patterns 112 and the secondary plate patterns 113, when two plate heat exchange plates 11 in one group of plate heat exchange groups 1 are butted with each other, the two corresponding sealing grooves 115 are arranged in a mirror symmetry manner, and the two sealing grooves 115 are connected in a sealing manner through a sealing rubber gasket (not shown in the drawings).

Further, as shown in fig. 3, 4 and 7, a plurality of flow path isolation portions 114 are alternately arranged on the heat exchange plate 11 and located inside the primary plate patterns 112 and the secondary plate patterns 113, and the primary plate patterns 112 and the secondary plate patterns 113 are divided by the plurality of flow path isolation portions 114 to form a plurality of flow path regions which are communicated end to end. Thus, when the heat exchange liquid enters the first-stage plate patterns 112 and the second-stage plate patterns 113 from one corner hole, the heat exchange liquid flows in a circuitous manner in the flow area under the cutting and guiding effects of the flow isolating part 114, so that the effective contact area between the heat exchange liquid and the heat exchange plate 111 is maximized, and the heat exchange effect and the heat exchange efficiency are improved.

Further, as shown in fig. 1, the primary plate patterns 112 and the secondary plate patterns 113 of the two heat exchange plates 11 corresponding to the plate heat exchange group 1 in one group are arranged in a staggered manner. Therefore, the spaces between the primary plate patterns 112 and the secondary plate patterns 113 form a cross-type corrugated structure, and when the heat exchange liquid passes through the primary plate patterns 112 and the secondary plate patterns 113, the heat exchange liquid can form turbulent flow when flowing, so that the heat exchange area is increased, and the heat exchange efficiency is improved.

Further, as shown in fig. 3 and fig. 6 to 7, in order to improve the connection stability and the stress strength between the two sets of plate heat exchange groups 1, a plurality of support portions 117 are disposed on the outer sides of the heat exchange plates 111 (the side of the two heat exchange plates 111 opposite to each other is used as the outer side), so as to facilitate the support connection between the two adjacent sets of plate heat exchange groups 1.

Preferably, the support portion 117 is disposed around the outer side of the sealing groove 15, so as to prevent the support portion 117 from affecting the air flow.

The primary plate patterns 112 and the secondary plate patterns 113 are manufactured in a mold pressing mode, so that the heat exchange plate 11 can be manufactured conveniently.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An asymmetric binary heat exchange plate is characterized in that: the heat exchanger comprises heat exchange plates, wherein two heat exchange plates are in sealed butt joint to form a group of plate type heat exchange groups, each heat exchange plate comprises a heat exchange sheet, a plurality of primary plate patterns which are linearly arranged are arranged on the inner side surface of each heat exchange sheet, and a plurality of secondary plate patterns which are mutually crossed with the primary plate patterns are arranged between every two adjacent primary plate patterns; the heat exchange fins are at least provided with two corner holes.

2. An asymmetric binary heat exchanger plate according to claim 1, characterized in that: the inner side surface of the heat exchange plate is provided with sealing grooves at the peripheries of the primary plate grains and the secondary plate grains, the two corresponding sealing grooves are arranged in a mirror symmetry mode, and the two sealing grooves are connected in a sealing mode through sealing rubber gaskets.

3. An asymmetric binary heat exchanger plate according to claim 1, characterized in that: and a plurality of flow isolation parts are arranged on the heat exchange plate and in the primary plate grains and the secondary plate grains in a staggered manner, and the primary plate grains and the secondary plate grains are divided by the flow isolation parts to form a plurality of flow areas which are communicated end to end.

4. An asymmetric binary heat exchanger plate according to claim 1, characterized in that: the primary plate patterns and the secondary plate patterns of the two heat exchange plates corresponding to the plate type heat exchange group in one group are arranged in a staggered mode.

5. An asymmetric binary heat exchanger plate according to claim 2, characterized in that: and a plurality of supporting parts are arranged on the outer sides of the heat exchange fins.

6. An asymmetric binary heat exchanger plate according to claim 5, characterized in that: the supporting parts are arranged around the outer side of the sealing groove.

7. An asymmetric binary heat exchanger plate according to claim 1, characterized in that: the first-stage plate patterns and the second-stage plate patterns are manufactured in a die pressing mode.