PLATE HEAT EXCHANGER
A plate heat exchanger includes heat exchange plates and a port, and the port communicates with a predetermined heat exchange space of a plurality of heat exchange spaces. The heat exchange plates of the plate heat exchanger includes a plurality of first heat exchange plates and a plurality of second heat exchange plates. The first heat exchange plate includes: a first heat exchange plate main body; a first opening formed in the first heat exchange plate main body for forming the port; and a first annular protrusion surrounding the first opening, adjoining the first opening and protruding from the first heat exchange plate main body toward a first side in a stacking direction. The second heat exchange plate includes: a second heat exchange plate main body; a second opening formed in the second heat exchange plate main body for forming the port; and a second annular protrusion surrounding the second opening, adjoining the second opening and protruding from the second heat exchange plate main body toward a second side opposite the first side in the stacking direction. The plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example.
This application is a National Stage application of International Patent Application No. PCT/CN2020/128673, filed on Nov. 13, 2020, which claims priority to Chinese Application No. 202010073885.3, filed Jan. 22, 2020, each of which is hereby incorporated by reference in its entirety.
TECHNICAL FIELDThe embodiments of the present invention relate to a plate heat exchanger.
BACKGROUNDA plate heat exchanger comprises cover plates, heat exchange plates, ports, distributors, connecting pipes, etc.
SUMMARYAn objective of the embodiments of the present invention is to provide a plate heat exchanger, which can thus simplify the manufacturing process of the plate heat exchanger, for example.
According to an embodiment of the present invention, there is provided a plate heat exchanger comprising: a plurality of heat exchange plates, the plurality of heat exchange plates being arranged in a stacking direction to form a plurality of heat exchange spaces, and the plurality of heat exchange plates comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates; and a port formed in the heat exchange plates, the port communicating with a predetermined heat exchange space of the plurality of heat exchange spaces, wherein the first heat exchange plate comprises: a first heat exchange plate main body; a first opening formed in the first heat exchange plate main body for forming the port; and a first annular protrusion surrounding the first opening, adjoining the first opening and protruding from the first heat exchange plate main body toward a first side in the stacking direction; and the second heat exchange plate comprises: a second heat exchange plate main body; a second opening formed in the second heat exchange plate main body for forming the port; and a second annular protrusion surrounding the second opening, adjoining the second opening and protruding from the second heat exchange plate main body toward a second side opposite to the first side in the stacking direction.
According to an embodiment of the present invention, the plate heat exchanger further comprises: a communicating hole formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, wherein the port communicates with the predetermined heat exchange space through the communicating hole.
According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate comprises: an annular first portion extending from the first heat exchange plate main body toward the first side; and an annular second portion extending inwardly from the annular first portion, the second portion of the first annular protrusion having a surface facing the first side; the second annular protrusion of the second heat exchange plate comprises: an annular first portion extending from the second heat exchange plate main body toward the second side; and an annular second portion extending inwardly from the annular first portion of the second annular protrusion of the second heat exchange plate, the second portion of the second annular protrusion having a surface facing the second side; and the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion.
According to an embodiment of the present invention, projections of the second portion of the first annular protrusion and the second portion of the second annular protrusion on a plane perpendicular to the stacking direction have an annular inner overlapping portion, and a projection of the communicating hole on the plane perpendicular to the stacking direction is outside the annular inner overlapping portion. According to an embodiment of the present invention, at least one part of the projection of the second portion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion in the plane perpendicular to the stacking direction.
According to an embodiment of the present invention, the first heat exchange plate further comprises an annular portion surrounding the first annular protrusion, the annular portion of the first heat exchange plate has a surface facing the second side, the second heat exchange plate further comprises an annular portion surrounding the second annular protrusion, the annular portion of the second heat exchange plate has a surface facing the first side, and the surface of the annular portion of the first heat exchange plate and the surface of the annular portion of the second heat exchange plate adjacent to each other are in at least partial contact to form a seal.
According to an embodiment of the present invention, projections of the annular portion of the first heat exchange plate and the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction have an annular outer overlapping portion, and the projection of the communicating hole on the plane perpendicular to the stacking direction is inside the annular outer overlapping portion.
According to an embodiment of the present invention, at least one part of the projection of the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction is inside the projection of the annular portion of the first heat exchange plate in the plane perpendicular to the stacking direction.
According to an embodiment of the present invention, the communicating hole is in the annular second portions of the first annular protrusions of at least some of the first heat exchange plates and/or the communicating hole is in the annular portions of at least some of the second heat exchange plates.
According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is larger than an outer diameter of the second annular protrusion of the second heat exchange plate.
According to an embodiment of the present invention, the annular portion of the first heat exchange plate has a circular annular shape, the annular portion of the second heat exchange plate has a circular annular shape, and an inner diameter of the annular portion of the second heat exchange plate is smaller than an inner diameter of the annular portion of the first heat exchange plate.
According to an embodiment of the present invention, the annular portion of the first heat exchange plate adjoins the first portion of the first annular protrusion of the first heat exchange plate, and the annular portion of the second heat exchange plate adjoins the first portion of the second annular protrusion of the second heat exchange plate.
According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate comprises an annular protrusion main body and a communicating protrusion extending outwardly from the annular protrusion main body; and at least one part of a projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular projection on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicating protrusion of the first annular protrusion.
According to an embodiment of the present invention, the annular protrusion main body of the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the annular protrusion main body of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate; and the projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the projection of the communicating protrusion of the first annular protrusion.
According to an embodiment of the present invention, the communicating hole is a plurality of communicating holes, and the communicating protrusion is a plurality of spaced communicating protrusions.
According to an embodiment of the present invention, a surface of the second annular protrusion of the second heat exchange plate facing the second side has a second recessed portion, and the second recessed portion forms the communicating hole.
According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate has a circular annular shape, the second protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate.
According to an embodiment of the present invention, an annular first portion of the first annular protrusion of the first heat exchange plate extends obliquely from the first heat exchange plate main body toward the first side, and an annular second portion of the first annular protrusion of the first heat exchange plate extends inwardly from the annular first portion of the first annular protrusion of the first heat exchange plate substantially parallel to the first heat exchange plate main body; and an annular first portion of the second annular protrusion of the second heat exchange plate extends obliquely from the second heat exchange plate main body toward the second side, and an annular second portion of the second annular projection of the second heat exchange plate extends inwardly from the annular first portion of the second annular projection of the second heat exchange plate substantially parallel to the second heat exchange plate main body.
According to an embodiment of the present invention, the annular second portion of the first annular protrusion of the first heat exchange plate adjoins the first opening, and the annular second portion of the second annular projection of the second heat exchange plate adjoins the second opening.
According to an embodiment of the present invention, the plurality of first heat exchange plates and the plurality of second heat exchange plates are alternately arranged in the stacking direction.
According to an embodiment of the present invention, the communicating hole is formed in the first heat exchange plates and/or the second heat exchange plates.
The plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example.
The present invention is explained further below in conjunction with the accompanying drawing and specific implementations.
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The concepts according to the embodiments of the present invention can be applied to any plate heat exchanger, not limited to the heat exchangers shown in the figures. That is, the port portion of the heat exchange plate of the plate heat exchanger according to the embodiments of the present invention can be applied to any plate heat exchanger.
The plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example. A separate distributor may be omitted for the plate heat exchanger. In addition, the use of the plate heat exchanger according to the embodiments of the present invention can reduce the cost.
According to the plate heat exchanger of the embodiments of the present invention, an integrated distributor is formed on the heat exchange plate by means of stamping.
It must be explained that features in one or more of the embodiments above may be combined to form new embodiments. A feature in one embodiment may be used in another embodiment, unless the feature in one embodiment clashes with the technical solution of the other embodiment.
Claims
1. A plate heat exchanger, comprising:
- a plurality of heat exchange plates, the plurality of heat exchange plates being arranged in a stacking direction to form a plurality of heat exchange spaces, and the plurality of heat exchange plates comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates; and
- a port formed in the heat exchange plates, the port communicating with a predetermined heat exchange space of the plurality of heat exchange spaces, wherein
- the first heat exchange plate comprises: a first heat exchange plate main body; a first opening formed in the first heat exchange plate main body for forming the port; and a first annular protrusion surrounding the first opening, adjoining the first opening and protruding from the first heat exchange plate main body toward a first side in the stacking direction; and
- the second heat exchange plate comprises: a second heat exchange plate main body; a second opening formed in the second heat exchange plate main body for forming the port; and a second annular protrusion surrounding the second opening, adjoining the second opening and protruding from the second heat exchange plate main body toward a second side opposite to the first side in the stacking direction.
2. The plate heat exchanger as claimed in claim 1, further comprising:
- a communicating hole formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, wherein the port communicates with the predetermined heat exchange space through the communicating hole.
3. The plate heat exchanger as claimed in claim 2, wherein:
- the first annular protrusion of the first heat exchange plate comprises: an annular first portion extending from the first heat exchange plate main body toward the first side; and an annular second portion extending inwardly from the annular first portion, the second portion of the first annular protrusion having a surface facing the first side;
- the second annular protrusion of the second heat exchange plate comprises: an annular first portion extending from the second heat exchange plate main body toward the second side; and an annular second portion extending inwardly from the annular first portion of the second annular protrusion of the second heat exchange plate, the second portion of the second annular protrusion having a surface facing the second side; and
- the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion.
4. The plate heat exchanger as claimed in claim 3, wherein:
- projections of the second portion of the first annular protrusion and the second portion of the second annular protrusion on a plane perpendicular to the stacking direction have an annular inner overlapping portion, and
- a projection of the communicating hole on the plane perpendicular to the stacking direction is outside the annular inner overlapping portion.
5. The plate heat exchanger as claimed in claim 4, wherein:
- at least one part of the projection of the second portion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion in the plane perpendicular to the stacking direction.
6. The plate heat exchanger as claimed in claim 4, wherein:
- the first heat exchange plate further comprises an annular portion surrounding the first annular protrusion, the annular portion of the first heat exchange plate has a surface facing the second side, the second heat exchange plate further comprises an annular portion surrounding the second annular protrusion, the annular portion of the second heat exchange plate has a surface facing the first side, and the surface of the annular portion of the first heat exchange plate and the surface of the annular portion of the second heat exchange plate adjacent to each other are in at least partial contact to form a seal.
7. The plate heat exchanger as claimed in claim 6, wherein:
- projections of the annular portion of the first heat exchange plate and the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction have an annular outer overlapping portion, and
- the projection of the communicating hole on the plane perpendicular to the stacking direction is inside the annular outer overlapping portion.
8. The plate heat exchanger as claimed in claim 6, wherein:
- at least one part of the projection of the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction is inside the projection of the annular portion of the first heat exchange plate in the plane perpendicular to the stacking direction.
9. The plate heat exchanger as claimed in claim 6, wherein:
- the communicating hole is in the annular second portions of the first annular protrusions of at least some of the first heat exchange plates and/or the communicating hole is in the annular portions of at least some of the second heat exchange plates.
10. The plate heat exchanger as claimed in claim 3, wherein:
- the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is larger than an outer diameter of the second annular protrusion of the second heat exchange plate.
11. The plate heat exchanger as claimed in claim 6, wherein:
- the annular portion of the first heat exchange plate has a circular annular shape, the annular portion of the second heat exchange plate has a circular annular shape, and an inner diameter of the annular portion of the second heat exchange plate is smaller than an inner diameter of the annular portion of the first heat exchange plate.
12. The plate heat exchanger as claimed in claim 11, wherein:
- the annular portion of the first heat exchange plate adjoins the first portion of the first annular protrusion of the first heat exchange plate, and the annular portion of the second heat exchange plate adjoins the first portion of the second annular protrusion of the second heat exchange plate.
13. The plate heat exchanger as claimed in claim 4, wherein:
- the first annular protrusion of the first heat exchange plate comprises an annular protrusion main body and a communicating protrusion extending outwardly from the annular protrusion main body; and
- at least one part of a projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular projection on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicating protrusion of the first annular protrusion.
14. The plate heat exchanger as claimed in claim 13, wherein:
- the annular protrusion main body of the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the annular protrusion main body of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate; and
- the projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the projection of the communicating protrusion of the first annular protrusion.
15. The plate heat exchanger as claimed in claim 13, wherein:
- the communicating hole is a plurality of communicating holes, and the communicating protrusion is a plurality of spaced communicating protrusions.
16. The plate heat exchanger as claimed in claim 2, wherein:
- a surface of the second annular protrusion of the second heat exchange plate facing the second side has a second recessed portion, and the second recessed portion forms the communicating hole.
17. The plate heat exchanger as claimed in claim 16, wherein:
- the first annular protrusion of the first heat exchange plate has a circular annular shape, the second protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate.
18. The plate heat exchanger as claimed in claim 1, wherein:
- an annular first portion of the first annular protrusion of the first heat exchange plate extends obliquely from the first heat exchange plate main body toward the first side, and an annular second portion of the first annular protrusion of the first heat exchange plate extends inwardly from the annular first portion of the first annular protrusion of the first heat exchange plate substantially parallel to the first heat exchange plate main body; and
- an annular first portion of the second annular protrusion of the second heat exchange plate extends obliquely from the second heat exchange plate main body toward the second side, and an annular second portion of the second annular projection of the second heat exchange plate extends inwardly from the annular first portion of the second annular projection of the second heat exchange plate substantially parallel to the second heat exchange plate main body.
19. The plate heat exchanger as claimed in claim 18, wherein:
- the annular second portion of the first annular protrusion of the first heat exchange plate adjoins the first opening, and the annular second portion of the second annular projection of the second heat exchange plate adjoins the second opening.
20. The plate heat exchanger as claimed in claim 1, wherein:
- the plurality of first heat exchange plates and the plurality of second heat exchange plates are alternately arranged in the stacking direction.
Type: Application
Filed: Nov 13, 2020
Publication Date: Mar 2, 2023
Inventors: Zhifeng ZHANG (Zhejiang), Zhixuan AN (Zhejiang), Lingjie ZHANG (Zhejiang)
Application Number: 17/793,961