Improved heat transfer plate for plate heat exchanger

Abstract

The utility model provides an improved heat transfer plate for a plate heat exchanger, which belongs to the technical field of heat transfer plates and comprises a heat transfer plate component, the heat transfer plate component comprises a heat transfer bottom plate, and the upper end of the heat transfer bottom plate is fixedly connected with a plurality of air guide blocks. The contact area with fluid can be effectively increased through the unique wavy line shape, so that the heat transfer efficiency is improved, the fluid can be guided to be distributed more uniformly, flowing dead zones are reduced, heat transfer is more sufficient and uniform, smaller space is possibly occupied under the same heat exchange requirement, miniaturization and integration of equipment are facilitated, and the heat transfer efficiency is improved. When the wave-line-shaped flow guide strips are matched with the rhombic staggered protruding blocks, the protruding blocks can further disturb fluid flowing, enhance the turbulence effect, remarkably improve the heat transfer performance and provide more heat transfer ways and contact points, so that heat transfer is more efficient and comprehensive, formation of a thermal boundary layer is easily broken, and thermal resistance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat transfer plates, in particular to an improved heat transfer plate for a plate heat exchanger. Background Art

[0002] The heat transfer plate of a heat exchanger is a key component for realizing heat transfer in the heat exchanger. It is usually made of materials with good thermal conductivity, such as stainless steel, aluminum alloy, etc. Generally, specific flow channels or grooves are designed on the heat transfer plate to guide the fluid to flow along a certain path. When the heat exchanger works, two fluids at different temperatures flow in the flow channels on both sides of the heat transfer plate respectively, and heat exchange is carried out through the heat transfer plate. The structure and performance of the heat transfer plate have an important impact on aspects such as the heat transfer efficiency, heat exchange capacity, and pressure loss of the heat exchanger. Its reasonable design and high-quality manufacturing are crucial for the efficient operation of the heat exchanger.

[0003] Chinese Patent Grant Publication No.: CN219244355U provides an improved heat transfer plate for a plate heat exchanger. Compared with the prior art, a heat transfer plate sheet is applicable to heat exchangers of multiple specifications, eliminating the process of re-pressing with a die, improving production efficiency. However, it may be difficult to achieve uniform temperature distribution across the entire heat transfer plate, and there may be a large temperature difference in some local areas. Some traditional designs may result in a relatively bulky overall device, making it inconvenient for installation and use. The heat transfer effects of different fluids may vary greatly, and the adaptability is not flexible enough.

[0004] Therefore, it is necessary to provide an improved heat transfer plate for a plate heat exchanger to solve the above technical problems. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides an improved heat transfer plate for a plate heat exchanger.

[0006] An improved heat transfer plate for a plate heat exchanger provided by the utility model includes a heat transfer plate assembly. The heat transfer plate assembly includes a heat transfer bottom plate. A plurality of air guide blocks are fixedly connected to the upper end of the heat transfer bottom plate. A plurality of flow guide strips are also fixedly connected to the upper end of the heat transfer bottom plate. A sealing rubber ring is fixedly connected to the upper end of the heat transfer bottom plate.

[0007] Preferably, a plurality of ventilation holes are formed in the middle of the heat transfer bottom plate.

[0008] Preferably, an annular groove for cooperating with the sealing rubber ring is formed at the lower end of the heat transfer bottom plate.

[0009] Preferably, the overall shape of the air guide block is diamond-shaped, and a plurality of air guide blocks are arranged staggeredly.

[0010] Preferably, the overall shape of the flow guide strip is wavy.

[0011] Preferably, the height of the sealing rubber ring is higher than the heights of the air guiding block and the flow guiding strip, and the heights of the air guiding block and the flow guiding strip are equal.

[0012] Compared with the related art, an improved heat transfer plate for a plate heat exchanger provided by the present utility model has the following beneficial effects:

[0013] 1. An improved heat transfer plate for a plate heat exchanger can effectively increase the contact area with the fluid through a unique wavy shape, thereby improving the heat transfer efficiency. It can guide the fluid to be more evenly distributed, reduce the flow dead zone, make the heat transfer more sufficient and uniform, and may occupy a smaller space under the same heat exchange requirements, which is beneficial to the miniaturization and integration of the equipment.

[0014] 2. When the wavy flow guiding strip of an improved heat transfer plate for a plate heat exchanger is paired with diamond-shaped staggered bumps, the bumps can further disrupt the fluid flow, enhance the turbulence effect, significantly improve the heat transfer performance, provide more heat transfer paths and contact points, make the heat transfer more efficient and comprehensive, help break the formation of the thermal boundary layer, and reduce the thermal resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the overall disassembled structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the overall bottom structure of the present utility model;

[0018] Figure 4 is a schematic diagram of the overall top view structure of the present utility model;

[0019] Reference numerals in the drawings: 1, heat transfer plate assembly; 101, heat transfer bottom plate; 102, air guiding block; 103, flow guiding strip; 104, sealing rubber ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4, an improved heat transfer plate for a plate heat exchanger provided by an embodiment of the present utility model, includes a heat transfer plate assembly 1, the heat transfer plate assembly 1 includes a heat transfer bottom plate 101, a plurality of air guiding blocks 102 are fixedly connected to the upper end of the heat transfer bottom plate 101, a plurality of flow guiding strips 103 are also fixedly connected to the upper end of the heat transfer bottom plate 101, and a sealing rubber ring 104 is fixedly connected to the upper end of the heat transfer bottom plate 101.

[0022] A plurality of air permeable holes are provided in the middle of the heat transfer bottom plate 101.

[0023] An annular groove for cooperating with the sealing rubber ring 104 is provided at the lower end of the heat transfer bottom plate 101.

[0024] The overall shape of the air guiding block 102 is diamond-shaped, and a plurality of air guiding blocks 102 are arranged in a staggered manner.

[0025] The overall shape of the flow guiding strip 103 is wavy.

[0026] The height of the sealing rubber ring 104 is higher than the heights of the air guiding block 102 and the flow guiding strip 103, and the heights of the air guiding block 102 and the flow guiding strip 103 are equal.

[0027] During operation, the wavy flow guiding strip 103 can effectively increase the contact area with the fluid, thereby improving the heat transfer efficiency, can guide the fluid to be more evenly distributed, reduce the flow dead zone, make the heat transfer more sufficient and uniform, and may occupy a smaller space under the same heat exchange requirements, which is beneficial to the miniaturization and integration of the equipment. When the wavy flow guiding strip is paired with the diamond-shaped staggered air guiding block 102, the air guiding block 102 can further disrupt the fluid flow, enhance the turbulent effect, significantly improve the heat transfer performance, provide more heat transfer paths and contact points, make the heat transfer more efficient and comprehensive, help to break the formation of the thermal boundary layer, reduce the thermal resistance. When multiple heat transfer bottom plates 101 are stacked, they can be mutually sealed through the sealing rubber ring 104 to prevent gas from flowing out.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An improved heat transfer plate for a plate heat exchanger, characterized in that: The invention comprises a heat transfer plate assembly (1), wherein the heat transfer plate assembly (1) comprises a heat transfer bottom plate (101), the upper end of the heat transfer bottom plate (101) is fixedly connected to a plurality of air guide blocks (102), the upper end of the heat transfer bottom plate (101) is also fixedly connected to a plurality of guide strips (103), and the upper end of the heat transfer bottom plate (101) is fixedly connected to a sealing rubber ring (104).

2. An improved heat transfer plate for a plate heat exchanger according to claim 1, characterized in that: A plurality of air holes are provided in the middle of the heat transfer bottom plate (101).

3. An improved heat transfer plate for a plate heat exchanger according to claim 1, characterized in that: An annular groove for cooperating with a sealing rubber ring (104) is provided at the lower end of the heat transfer bottom plate (101).

4. An improved heat transfer plate for a plate heat exchanger according to claim 1, characterized in that: The overall shape of the air guide block (102) is a diamond arrangement, and a plurality of air guide blocks (102) are arranged in a staggered manner.

5. An improved heat transfer plate for a plate heat exchanger according to claim 1, characterized in that: The overall shape of the guide strip (103) is wave-shaped.

6. An improved heat transfer plate for a plate heat exchanger according to claim 1, characterized in that: The height of the sealing rubber ring (104) is higher than the height of the air guide block (102) and the guide strip (103), and the height of the air guide block (102) and the guide strip (103) is equal.

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