Novel-structure U-shaped flow plate used on plate type heat exchanger
By designing a U-shaped flow channel on the plate of the plate heat exchanger, and adjusting the medium flow using long convex ribs and long planes, the problems of short media flow channels and low heat exchange efficiency of traditional plate heat exchangers are solved, and a more efficient heat exchange effect is achieved.
Patent Information
- Application Number
- CN202420951323.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The medium flow channel of traditional plate heat exchangers is short, and the medium can only flow in one direction, resulting in low heat exchange efficiency of medium under the same volume and cost, and cannot meet the required heat exchange power.
A new structure of U-shaped flow plate is designed. By setting long convex ribs and long planes on the plate, the medium flow channel is adjusted to form a U-shaped and the flow channel is increased.
With the premise that the volume and size are consistent and the manufacturing cost is not increased, the heat exchange efficiency of the plate heat exchanger is improved.
Smart Images
Figure CN222598617U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of plate-type heat exchangers for new energy vehicles, and specifically relates to a U-shaped flow plate with a new structure used in a plate-type heat exchanger. Background Art
[0002] With the development of society, cars are becoming more and more popular in ordinary families, which leads to an increasing number of cars. Since traditional cars are generally driven by fuel engines, the increase in car exhaust emissions will inevitably affect the air environment in which we live. In order to meet the requirements of future car exhaust emissions, electric vehicles, as new energy vehicles, emit almost no exhaust during use, and become one of the important choices for future cars. Electric vehicles generally refer to vehicles that use power battery packs as power sources and use motors to drive wheels. As a new power source, the technical indicators of power battery packs require them to have ultra-long life, safe use, and long endurance. Among them, temperature has an important influence on the performance and life of the power battery pack. In order to ensure that electric vehicles can work safely and normally in various environments, existing power battery packs usually need to be equipped with a cooling system with a plate heat exchanger to cool the power battery pack.
[0003] At present, plate heat exchangers are an indispensable and important part in the field of power battery packs, and plates are the main components of plate heat exchangers. Plate heat exchangers are a new type of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchangers are ideal equipment for liquid-liquid and liquid-steam heat exchange. The plate structure used in traditional plate heat exchangers is as follows: Figure 5 As shown, the medium flow channel b of the plate a of this structure is short, and the medium can only flow in one direction. Under the condition of the same volume and cost, the medium heat exchange efficiency of the plate heat exchanger is low and cannot meet the required heat exchange power. Utility Model Content
[0004] (1) Technical issues to be solved
[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a new structure U-shaped flow plate for a plate-type heat exchanger, which is intended to solve the problem that the medium flow channel of the traditional plate heat exchanger is short, the medium can only flow in one direction, and the medium heat exchange efficiency of the plate heat exchanger with the same volume and cost is low and cannot meet the required heat exchange power.
[0006] (2) Technical solution
[0007] In order to solve the above technical problems, the utility model provides a new structure U-shaped flow plate for a plate-type heat exchanger, the plate comprising a thin plate body, two first through holes and two second through holes are respectively provided on the left and right sides of the thin plate body, grooves and protrusions are respectively provided at the first through holes and the second through holes, and long planes and long convex ribs extending toward the middle are respectively provided on the left and right sides of the thin plate body, and the thin plate body is divided into a front heat exchange area and a rear heat exchange area with corrugations by the long planes and the long convex ribs.
[0008] Preferably, the long flat surface and the long convex rib are both two-thirds of the length of the thin plate body.
[0009] Furthermore, the width and height of the long plane and the long convex rib are equal to the corrugation.
[0010] Furthermore, the heights of the grooves and protrusions are equal to those of the corrugations, and the number of the grooves and protrusions is three.
[0011] Furthermore, the corrugations of the front heat exchange zone are inclined to the left, and the corrugations of the rear heat exchange zone are inclined to the right.
[0012] Furthermore, the thin plate body is integrally pressed from a stainless steel thin plate.
[0013] Beneficial Effects
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model changes the grooves and protrusions of the planes around the two first through holes and the two second through holes on the plate, and adds long convex ribs that are consistent with the corrugation height and occupy two-thirds of the length of the plate and a long plane that does not participate in stamping deformation on the plate, and the long convex ribs and the long plane are not axisymmetric, so that the medium flow channel can be adjusted by changing its own structure, so that the flow channel is U-shaped, and the flow channel is increased, thereby increasing the heat exchange efficiency of the plate heat exchanger while maintaining the same volume and without increasing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a top view structural schematic diagram of the utility model.
[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.
[0018] Figure 3 It is a schematic diagram of the explosion structure of the utility model.
[0019] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.
[0020] Figure 5It is a structural schematic diagram of the existing plate of the utility model.
[0021] The markings in the attached drawings are: 1. thin plate body; 2. first through hole; 3. second through hole; 4. groove; 5. protrusion; 6. long plane; 7. long convex rib; 8. corrugation; 9. front heat exchange zone; 10. rear heat exchange zone. DETAILED DESCRIPTION
[0022] This specific implementation method is a new structure U-shaped flow plate for plate-type heat exchanger, and its structural schematic diagram is as follows Figure 1-Figure 4 As shown, the plate comprises a thin plate body 1, two first through holes 2 and two second through holes 3 are respectively provided on the left and right sides of the thin plate body 1, a groove 4 and a protrusion 5 are respectively provided at the first through hole 2 and the second through hole 3, the circumferential planes of the first through hole 2 and the second through hole 3 do not participate in the die stamping, and are reference planes, the grooves 4 and the protrusions 5 are arranged around the first through hole 2 and the second through hole 3, and are stamped by the die as a whole, the left and right sides of the thin plate body 1 are respectively provided with a long plane 6 and a long convex rib 7 extending toward the middle, the thin plate body 1 is divided into a front heat exchange area 9 and a rear heat exchange area 10 with corrugations 8 by the long plane 6 and the long convex rib 7, the distance of the corrugations 8 is unchanged, and the height and cross-sectional shape are consistent, and are used for heat exchange.
[0023] like Figure 1 and Figure 2 As shown: In this embodiment, the long flat surface 6 and the long convex rib 7 are both two-thirds of the length of the thin plate body 1.
[0024] In this way, the long convex rib 7 is formed by die stamping, and the long flat surface 6 is not formed by die stamping.
[0025] like Figure 1 and Figure 2 As shown: In this embodiment, the width and height of the long flat surface 6 and the long convex rib 7 are equal to the corrugation 8.
[0026] The upper surface of the long convex rib 7 arranged in this way can be fitted with the lower surface of the long flat surface 6 of the upper plate to form a partition with a length of two-thirds of the plate length that blocks the flow of the medium.
[0027] like Figure 3 and Figure 4 As shown: In this embodiment, the heights of the grooves 4 and the protrusions 5 are equal to those of the corrugations 8, and the number of the grooves 4 and the number of the protrusions 5 are both three.
[0028] The upper surface of the upward protrusion 5 can be fitted with the lower surface of the groove 4 so that a cavity for the medium to flow is formed between the upper and lower plates.
[0029] like Figure 1 and Figure 2As shown: In this embodiment, the corrugations 8 of the front heat exchange area 9 are inclined to the left, and the corrugations 8 of the rear heat exchange area 10 are inclined to the right.
[0030] This arrangement adjusts the medium flow channel by changing its own structure, making the flow channel U-shaped, and increasing the flow channel.
[0031] In this embodiment, the thin plate body 1 is formed by integrally pressing a stainless steel thin plate, which has better corrosion resistance and increases the service life.
[0032] Working principle: When assembling the plate heat exchanger, the same plate is used, and the upper and lower plates are rotated 180° and stacked. The upper plate and the lower plate are rotated 180° relative to each other. At this time, the first through hole 2 on the upper and lower sides is connected with the second through hole 3, and the upper surface of the upward protrusion 5 fits with the lower surface of the groove 4, so that a cavity for medium flow is formed between the upper and lower plates. At the same time, after the upper plate and the lower plate are rotated 180° relative to each other, the upper surface of the long convex rib 7 of the lower plate fits with the lower surface of the long plane 6 of the upper plate, forming a partition with a length of two-thirds of the length of the plate to hinder the flow of the medium. At this time, the flowing medium can only flow through one-third of the plate that is not fitted. This structure allows the medium to enter between the upper and lower plates through a through hole on one side, and under the action of the partition, a U-shaped flow channel is formed, and then flows out through another circular hole on this side;
[0033] By changing the grooves 4 and the protrusions 5 on the planes around the two first through holes 2 and the two second through holes 3 on the plate, and adding long convex ribs 7 that are consistent with the height of the corrugations 8 and occupy two-thirds of the length of the plate and long planes 6 that do not participate in stamping deformation on the plate, and the long convex ribs 7 and the long planes 6 that are not involved in stamping deformation, and the long convex ribs 7 and the long planes 6 are not axisymmetric, the medium flow channel can be adjusted by changing its own structure to make its flow channel U-shaped, and the flow channel can be increased, thereby increasing the heat exchange efficiency of the plate heat exchanger while maintaining the same volume and without increasing the manufacturing cost.
[0034] All technical features in this embodiment can be freely combined according to actual needs.
[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.
Claims
1. A new structure U-shaped flow plate for a plate-type heat exchanger, the plate comprising a thin plate body (1), characterized in that: The thin plate body (1) is provided with two first through holes (2) and two second through holes (3) on the left and right sides respectively, and the first through holes (2) and the second through holes (3) are provided with grooves (4) and protrusions (5) respectively. The thin plate body (1) is provided with long planes (6) and long convex ribs (7) extending toward the middle on the left and right sides respectively, and the thin plate body (1) is divided into a front heat exchange area (9) and a rear heat exchange area (10) with corrugations (8) by the long planes (6) and the long convex ribs (7).
2. The new structure U-shaped flow plate for plate-type heat exchanger according to claim 1 is characterized in that: The long flat surface (6) and the long convex rib (7) are both two-thirds of the length of the thin plate body (1).
3. The new structure U-shaped flow plate for plate-type heat exchanger according to claim 2 is characterized in that: The width and height of the long plane (6) and the long convex rib (7) are equal to those of the corrugation (8).
4. The new structure U-shaped flow plate for plate-type heat exchanger according to claim 3 is characterized in that: The grooves (4) and protrusions (5) are both equal in height to the corrugations (8), and the number of the grooves (4) and protrusions (5) is three.
5. The new structure U-shaped flow plate for plate-type heat exchanger according to claim 4 is characterized in that: The corrugations (8) of the front heat exchange zone (9) are inclined toward the left, and the corrugations (8) of the rear heat exchange zone (10) are inclined toward the right.
6. The new structure U-shaped flow plate for plate-type heat exchanger according to claim 5, characterized in that: The thin plate body (1) is integrally formed by pressing a stainless steel thin plate.