Fractal fin type plate-fin heat exchanger
By using plate-fin heat exchangers with fractal fins, the problems of limited space and low heat transfer efficiency of traditional heat exchangers are solved, achieving high-efficiency heat exchange and material saving, and making them suitable for space-constrained applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional heat exchangers have small heat exchange area, complex structure, high material cost and large equipment size, making them difficult to use effectively in space-constrained situations, and their heat transfer efficiency is low.
Plate-fin heat exchangers employing fractal fins achieve cross-flow arrangement and turbulent development of hot and cold fluids by staggering hot and cold fluid channels and fins, combined with Y-shaped fin structures and corrosion-resistant metal baffles, thereby increasing the heat exchange area and improving fluid turbulence.
It provides a large heat exchange area in a limited space, improves heat transfer efficiency, reduces material usage, reduces equipment weight and volume, promotes fluid turbulence, avoids mixing, and enhances insulation effect.
Smart Images
Figure CN224051124U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heat exchanger technical field more particularly relates to a fractal fin form's plate fin heat exchanger. BACKGROUND
[0002] With the continuous expansion of industrial production scale and the improvement of process requirement, in industrial production, a large amount of waste heat is discharged to the environment, causing a large amount of energy waste, and the traditional heat exchange equipment has been unable to meet the demand of high efficient heat exchange. With the global energy shortage and environmental pollution problems becoming increasingly prominent, energy saving and emission reduction has become the common goal of governments and enterprises, at present, through the heat transfer enhancement technology can improve energy utilization efficiency, reduce energy consumption and emission, meet the requirements of sustainable development. The heat transfer enhancement technology can improve the efficiency of waste heat recovery, and more effectively transfer the heat of high temperature fluid to low temperature fluid, realize the reuse of energy, thereby improving the energy utilization efficiency of the whole system.
[0003] As the core component of heat transfer enhancement, the traditional heat exchanger has many defects in actual use process: such as the heat exchange area of the traditional heat exchanger (such as shell and tube heat exchanger) is relatively small, which leads to low heat transfer efficiency; and the structure of the traditional heat exchanger is relatively complex, due to the limitation of heat exchange area and volume, a large amount of materials are usually used to meet the heat exchange demand, which not only increases the material cost, but also may cause the weight and volume of the equipment to be too large, affecting its application in some space limited occasions. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a fractal fin form's plate fin heat exchanger, which can provide larger heat exchange area in limited space and promote the development of fluid turbulence, thereby improving the heat exchange efficiency.
[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.
[0006] A fractal fin form's plate fin heat exchanger, comprising a shell, cold fluid inlet and cold fluid outlet are arranged on the left and right sides of the shell through cold cavity head respectively, hot fluid outlet and hot fluid inlet are arranged on the upper and lower sides of the shell through hot cavity head respectively, cold fluid channels communicating with the cold fluid inlet and the cold fluid outlet and hot fluid channels communicating with the hot fluid inlet and the hot fluid outlet are arranged in the shell through horizontal partition plates; the cold fluid channels and the hot fluid channels are provided with fins for realizing heat exchange of cold and hot fluids.
[0007] Further optimize the technical scheme, two sides between the upper and lower horizontal partition plates of the hot fluid channel are respectively provided with hot cavity sealing strips for sealing the hot fluid channel and supporting the hot fluid channel.
[0008] Further optimization technical scheme, the upper and lower two horizontal partition plates of the cold fluid channel are staggered with the two sides of the heat cavity seal, and the two sides are respectively provided with cold cavity seals for sealing the cold fluid channel and supporting the cold fluid channel.
[0009] Further optimization technical scheme, the fin is fixedly arranged on the inner side of the upper and lower two horizontal partition plates, and the cross section of the fin is Y-shaped structure.
[0010] Further optimization technical scheme, the fin is copper fin.
[0011] Further optimization technical scheme, the horizontal partition plate is made of corrosion-resistant metal material.
[0012] Further optimization technical scheme, the inside of the shell and the outermost horizontal partition plate are filled with a heat preservation layer for heat preservation.
[0013] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model is as follows.
[0014] The plate-fin heat exchanger in the form of fractal fin provided by the utility model is based on fractal theory to construct fractal fin as a reinforced heat exchange element inside the heat exchanger, which can provide a large heat exchange area, and is a cross-flow plate-fin heat exchanger, can realize effective utilization of space resources, has the characteristics of small land occupation and large heat exchange area; due to the complex structure of the fractal fin, the turbulent degree of fluid can be increased, and the heat exchange efficiency of the heat exchanger is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the utility model;
[0016] Figure 2 It is a structural schematic view of the utility model;
[0017] Figure 3 It is a structural schematic view of the heat fluid channel of the utility model;
[0018] Figure 4 It is a structural schematic view of the cold fluid channel of the utility model;
[0019] Figure 5 It is a structural schematic view of the fin of the utility model.
[0020] Wherein: 1. shell, 2. cold cavity head, 3. hot cavity head, 4. cold fluid inlet, 5. hot fluid inlet, 6. cold fluid outlet, 7. hot fluid outlet, 8. horizontal partition plate, 9. heat cavity seal, 10. cold cavity seal, 11. fin, 12. hot fluid channel, 13. cold fluid channel. DETAILED DESCRIPTION
[0021] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.
[0022] A plate-fin heat exchanger in the form of fractal fins, combining Figures 1 to 5 As shown, it comprises a shell 1, the left and right sides of the shell 1 are provided with a cold fluid inlet 4 and a cold fluid outlet 6 through a cold cavity head 2 respectively, the upper and lower sides of the shell 1 are provided with a hot fluid outlet 7 and a hot fluid inlet 5 through a hot cavity head 3 respectively, the inside of the shell 1 is provided with a cold fluid channel 13 and a hot fluid channel 12 staggered through horizontal partitions 8, the cold fluid channel 13 communicates the cold fluid inlet 4 and the cold fluid outlet 6, the hot fluid channel 12 communicates the hot fluid inlet 5 and the hot fluid outlet 7, to realize the cross-flow arrangement of cold and hot fluids.
[0023] The two sides between the upper and lower horizontal partitions 8 of the hot fluid channel 12 are respectively provided with hot cavity sealing strips 9, to seal the hot fluid channel and support the hot fluid channel.
[0024] The two sides between the upper and lower horizontal partitions 8 of the cold fluid channel 13 are respectively provided with cold cavity sealing strips 10, the cold cavity sealing strips 10 are staggered with the hot cavity sealing strips 9, to seal the cold fluid channel 13 and support the cold fluid channel. Through the staggered hot fluid channel and cold fluid channel, the cold and hot fluids of the heat exchanger will not mix with each other, the cold and hot fluid channels are separated by the intermediate horizontal partitions, which helps to realize the compact design of the heat exchanger, so that more heat exchange area can be arranged in limited space, and the limited space resources are fully utilized.
[0025] The horizontal partitions 8 are made of corrosion-resistant metal material, which avoids the corrosion of the heat exchange medium to the heat exchanger and improves the service life of the heat exchanger.
[0026] The cold fluid channel 13 and the hot fluid channel 12 are both provided with fins 11, to realize the heat exchange of cold and hot fluids, the fins 11 are fixedly arranged on the inner sides of the upper and lower horizontal partitions 8, the cross section of the fins 11 is in Y-shaped structure, so that the fluid changes direction continuously during flowing, increases the disturbance between fluids, promotes the formation of turbulent flow, destroys the development of the convenient layer, and makes the fluid contact with the heat exchange surface more fully, and the fins 11 are copper fins, which can also improve the heat exchange coefficient and further improve the heat transfer effect.
[0027] The inside of the shell 1 and the outermost horizontal partition 8 are filled with a thermal insulation layer, which reduces the heat loss of the heat exchanger core from the uppermost and lowermost horizontal partitions to the environment, thereby improving the heat preservation effect of the heat exchanger.
[0028] The utility model discloses a heat exchanger, including heat fluid inlet, cold fluid inlet, heat fluid channel, cold fluid channel and heat exchanger, wherein, the heat fluid inlet is located at the one side of heat exchanger, and the cold fluid inlet is located at the other side of heat exchanger, and the heat fluid channel and the cold fluid channel are located at the heat exchanger, and the heat fluid channel and the cold fluid channel are arranged in the heat exchanger in the staggered flow mode, and the heat fluid channel and the cold fluid channel are arranged in the heat exchanger in the staggered flow mode.
Claims
1. A plate-fin heat exchanger in the form of a fractal fin, characterized by: The application relates to a heat exchanger, which comprises a shell (1), cold fluid inlets (4) and cold fluid outlets (6) are arranged on the left and right sides of the shell (1) through cold cavity sealing heads (2), hot fluid outlets (7) and hot fluid inlets (5) are arranged on the upper and lower sides of the shell (1) through hot cavity sealing heads (3), cold fluid channels (13) and hot fluid channels (12) are arranged in the shell (1) through horizontal partition plates (8), the cold fluid channels (13) are connected with the cold fluid inlets (4) and the cold fluid outlets (6), and the hot fluid channels (12) are connected with the hot fluid inlets (5) and the hot fluid outlets (7); and fins (11) for realizing heat exchange of cold and hot fluids are arranged in the cold fluid channels (13) and the hot fluid channels (12).
2. A plate-fin heat exchanger in the form of a fractal fin according to claim 1, characterized in that: Two sides between the upper and lower horizontal partition plates (8) of the hot fluid channel (12) are respectively provided with hot cavity sealing strips (9) for sealing the hot fluid channel and supporting the hot fluid channel.
3. A plate-fin heat exchanger in the form of a fractal fin according to claim 2, characterized in that: Two sides between the upper and lower horizontal partition plates (8) of the cold fluid channel (13) which are staggered with the hot cavity sealing strips (9) are respectively provided with cold cavity sealing strips (10) for sealing the cold fluid channel and supporting the cold fluid channel.
4. A plate-fin heat exchanger in the form of a fractal fin according to claim 1, characterized in that: The fins (11) are fixedly arranged on the inner sides of the upper and lower horizontal partition plates (8), and the cross section of the fins (11) is in Y-shaped structure.
5. A plate-fin heat exchanger in the form of a fractal fin according to claim 1, characterized in that: The fins (11) are copper fins.
6. A plate-fin heat exchanger in the form of a fractal fin according to claim 1, characterized in that: The horizontal partition plates (8) are made of corrosion-resistant metal materials.
7. A plate-fin heat exchanger in the form of a fractal fin according to claim 1, characterized in that: A heat preservation layer is filled between the inner side of the shell (1) and the outermost horizontal partition plate (8) for heat preservation.