Fin type heat exchanger for cold chain transportation

Abstract

The utility model is applicable to the technical field of heat exchange fins, and provides a fin heat exchanger for cold chain transportation, which comprises a fixing component, two groups of heat exchange tubes are sleeved on the fixing component, a plurality of groups of heat exchange fin components are sleeved between the two groups of heat exchange tubes, and a connecting piece is arranged between each group of heat exchange fin component and the fixing component; the heat exchange fin assembly comprises two sets of side heat exchange fins, a plurality of sets of middle heat exchange fins are arranged between the two sets of side heat exchange fins, the multiple sets of middle heat exchange fins are arranged in a non-equidistant mode, the side heat exchange fins and the middle heat exchange fins are arranged to be of the same wavy structure, and the thickness of the middle heat exchange fins is smaller than that of the side heat exchange fins. According to the device, the problem that the heat exchange fins are damaged due to resonance generated by vibration in the cold chain transportation process is solved, the stability and the anti-seismic property of the heat exchanger are improved through the wave-shaped fins, the arrangement of different thicknesses and non-equidistance and the design of the elastic connecting pieces, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange fin technology field more specifically, it relates to a fin heat exchanger for cold chain transportation. BACKGROUND

[0002] Fin heat exchanger is a kind of heat exchange equipment widely used in various industrial cooling systems. Its main principle is to increase the surface area of fin, improve heat exchange efficiency, usually by several heat exchange pipes and the fin attached on these pipes. Fin heat exchanger is widely used in air conditioning system, automobile cooling system, air cooling system and other fields due to its simple structure, good heat dissipation performance, light weight and other advantages. However, fin heat exchanger will be affected by fluid medium flow, heat transfer and other factors during work, which may cause vibration of its fin and pipe at a certain frequency, and further affect heat exchange efficiency or even cause structural damage.

[0003] In cold chain transportation, especially in the process of cold chain truck transportation, the vehicle body will vibrate due to uneven road surface, bumping and other factors. Especially in long time running or encountering rugged road, the vibration of the vehicle body will intensify. Such vibration not only affects the stability of goods, but also may have a great impact on the cooling system on the vehicle. In such vibration environment, the traditional fin heat exchanger often fails due to resonance phenomenon. When the natural frequency of fin and heat exchange pipe matches the external vibration frequency, the fin heat exchanger may resonate under strong vibration, which may cause fin fracture, connection part loosening, heat exchange effect decline, and even the whole heat exchanger damage. This not only affects the temperature control accuracy in cold chain transportation, but also may cause damage to cold chain goods, resulting in economic loss and quality safety hazard.

[0004] Therefore, based on the above problems, the fin heat exchanger for cold chain transportation is proposed. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a fin heat exchanger for cold chain transportation.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A fin heat exchanger for cold chain transportation, comprising a fixing assembly, two groups of heat exchange pipes are sleeved on the fixing assembly, and a plurality of groups of heat exchange fin assembly are sleeved between the two groups of heat exchange pipes, and a connecting piece is arranged between each group of heat exchange fin assembly and the fixing assembly.

[0008] The heat exchange fin assembly comprises two groups of side heat exchange fins, a plurality of groups of middle heat exchange fins are arranged between the two groups of side heat exchange fins, the plurality of groups of middle heat exchange fins are arranged at non-equidistant positions, the side heat exchange fins and the middle heat exchange fins are arranged in the same wave shape structure, and the thickness of the middle heat exchange fins is smaller than that of the side heat exchange fins.

[0009] The utility model further sets up: the fixed component includes two groups of fixed plates, two groups of fixed plate same direction setting, two groups of fixed plate setting for L type structure.

[0010] The utility model further sets up: fixed plate both ends symmetry position through opening has fixed hole, two groups of fixed hole between along horizontal direction opening has fixed groove.

[0011] The utility model further sets up: the both ends position of fixed plate is equipped with through -hole, fixed rod is arranged at the through -hole, the fixed rod passes through two groups of fixed plates and is arranged, the fixed rod away from fixed plate one end is installed with counterweight, and the counterweight is arranged as cylindrical structure.

[0012] The utility model further sets up: the heat exchange pipe is arranged as arch structure, one end of the heat exchange pipe is provided with the water inlet for entering the cooling liquid, and the other end is connected with the water outlet for discharging the cooling liquid.

[0013] The utility model further sets up: a plurality of groups of installation holes are formed in the middle heat exchange fin, and the installation hole position corresponds to the heat exchange pipe position.

[0014] The utility model further sets up: the connecting piece is arranged between each group of installation holes, and the connecting piece is matched with the shape of the installation hole.

[0015] The utility model further sets up: the connecting piece includes the connecting ring that is arranged in the inner wall of the installation hole, a rubber ring is arranged in the connecting ring, and the rubber ring is arranged in the heat exchange pipe.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] 1, the heat exchange fin of the utility model adopts the wave shape structure, improves the rigidity and anti -deformation ability of fin, strengthens air turbulence effect simultaneously, improves heat exchange efficiency, in addition, two kinds of different thickness fins are arranged in the heat exchange fin assembly, wherein the thickness of the middle heat exchange fin is smaller than that of the side heat exchange fin, the fins of different quality have different natural vibration frequency, avoid large -scale synchronous resonance phenomenon, at the same time, the non -equidistant arrangement between the middle heat exchange fins further breaks the resonance effect that the fixed pitch arrangement can cause, thereby effectively reducing the resonance risk, and enhancing the anti -shock performance of the heat exchanger in the cold chain transportation process.

[0018] 2, the connecting piece is made of flexible material, which forms a buffer layer between the heat exchange fin assembly and the heat exchange pipe, can effectively absorb and attenuate external vibration energy, reduce the structure loosening or damage caused by transportation bumping. At the same time, the elastic property of the rubber ring can adapt to the slight deformation of the heat exchange pipe, improve the stability of the overall structure, and further reduce the probability of resonance, so as to improve the durability and reliability of the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the fin heat exchanger for cold chain transportation.

[0020] Figure 2 It is a side view of the fin heat exchanger for cold chain transportation.

[0021] Figure 3 It is a top view of the heat exchange fin.

[0022] Figure 4 It is Figure 3 It is a sectional view along the A-A section line.

[0023] Figure 5 It is a structure schematic view of the heat exchange fin.

[0024] Figure 6 It is Figure 5 It is a local enlarged schematic view of the B area.

[0025] Explanation of reference signs: 1, fixed assembly; 11, fixed plate; 111, fixed hole; 112, fixed groove; 12, fixed rod; 121, counterweight;

[0026] 2, heat exchange pipe; 21, water inlet; 22, water outlet;

[0027] 3, heat exchange fin assembly; 31, edge heat exchange fin; 32, middle heat exchange fin; 321, mounting hole;

[0028] 4, connecting piece; 41, connecting ring; 42, rubber ring. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0031] Example one, please refer to Figures 1-6The utility model provides the following technical scheme:

[0032] Specifically refers to a kind of fin heat exchanger for cold chain transportation, including fixed component 1, fixed component 1 provides installation environment for the whole fin heat exchanger, ensure that fin heat exchanger can be stably fixed in cold chain transport vehicle, avoid displacement or loosening due to the vibration or jolt in the process of vehicle driving, two groups of heat exchange tubes 2 are set on fixed component 1, heat exchange tube 2 is used to carry cooling medium or refrigerant, and heat exchange fin assembly 3 is exchanged with in the process of operation, to improve the temperature control efficiency in cold chain transport vehicle. Several groups of heat exchange fin assemblies 3 are set between two groups of heat exchange tubes 2, mainly used to increase heat exchange area, improve heat exchange efficiency. Connecting piece 4 is arranged between each group of heat exchange fin assembly 3 and fixed component 1, and connecting piece 4 is used to ensure that heat exchange fin assembly 3 is closely combined with fixed component 1.

[0033] Heat exchange tube 2 is arranged as arch-shaped structure, one end of heat exchange tube 2 is provided with water inlet 21 for entering cooling liquid, and the other end is connected with water outlet 22 for discharging cooling liquid.

[0034] Heat exchange fin assembly 3 includes two groups of side heat exchange fins 31, and several groups of middle heat exchange fins 32 are arranged between the two groups of side heat exchange fins 31, the several groups of middle heat exchange fins 32 are arranged at unequal intervals, the side heat exchange fins 31 and the middle heat exchange fins 32 are arranged as the same wave-shaped structure, the wave-shaped structure can effectively enhance the deformation resistance of the fins, improve the overall rigidity, reduce the local deformation caused by external impact or air flow effect, and the heat exchange area is increased, the air disturbance effect is improved, and the heat exchange efficiency is further improved.

[0035] In addition, the thickness of the middle heat exchange fin 32 is less than the thickness of the side heat exchange fin 31, and it should be noted that, since the mass of the middle heat exchange fin 32 and the side heat exchange fin 31 is different, the natural vibration frequency of the two is also different, so when subjected to external vibration, large-scale synchronous resonance phenomenon will not be formed, thereby effectively reducing the possibility of damage caused by resonance of heat exchange fin assembly 3 in the process of cold chain transportation. At the same time, since the spacing of the several groups of middle heat exchange fins 32 is not equidistantly distributed, this non-uniform arrangement can break the resonance effect caused by fixed pitch arrangement, so that the fins at different positions produce different vibration responses when subjected to external excitation, thereby further reducing the resonance risk.

[0036] A plurality of mounting holes 321 are formed in the middle heat exchange fin 32, and the mounting holes 321 correspond in position to the heat exchange tubes 2. Connecting piece 4 is arranged between each group of mounting holes 321, and the connecting piece 4 is adapted in shape to the mounting holes 321, so that it can be stably embedded and ensure the stable connection between the heat exchange fin assembly 3 and the heat exchange tube 2.

[0037] The connecting piece 4 comprises a connecting ring 41 which is tightly fitted to the inner wall of the mounting hole 321, used to enhance the stability between the heat exchange fin assembly 3 and the heat exchange pipe 2, and to reduce loosening or displacement caused by vibration. The inside of the connecting ring 41 is provided with a rubber ring 42 which is tightly fitted to the heat exchange pipe 2, not only playing a buffering and damping role, but also improving the heat exchange efficiency through its heat conduction performance, thereby enhancing the fixing reliability and heat transfer performance of the heat exchange fin assembly 3. The rubber ring 42 is made of heat-conducting rubber material, ensuring good heat conduction effect, while having high-temperature resistance and anti-aging properties.

[0038] When the center heat exchange fin 32 is installed, it should be noted that due to the particularity of the installation process, the two end return bends of the heat exchange pipe 2 are installed later than the heat exchange fin assembly 3, and the specific installation steps are as follows: first, the connecting ring 41 is installed to the inside of the center heat exchange fin 32 to form a preliminary fixed structure. Then, the rubber ring 42 is sleeved on the inside of the connecting ring 41 and is ensured to be uniformly fitted to provide a buffering effect. Finally, the whole assembly is inserted into the surface of the heat exchange pipe 2, so that the rubber ring 42 is tightly fitted to the heat exchange pipe 2 to form the first buffering layer. Since the rubber ring 42 is flexible, a part of the rubber ring 42 will be extruded and slightly extruded from the bottom of the connecting ring 41 during installation. This design can effectively improve the installation stability of the heat exchange fin assembly 3, and avoid loosening or falling off due to vibration or impact during transportation. Moreover, the material of the rubber ring 42 itself has certain elasticity and damping properties, which can effectively absorb and attenuate vibration energy, thereby reducing the possibility of resonance of the heat exchange fin assembly 3 during cold chain transportation.

[0039] The fixing assembly 1 comprises two groups of fixing plates 11 which are arranged in the same direction and parallel to each other, and are arranged in an L-shaped structure. Symmetrical positions at both ends of the fixing plate 11 are provided with a fixing hole 111, which is used to connect with the mounting part of the vehicle body and is fixed by bolts or other fasteners. A fixing groove 112 is provided between the two groups of fixing holes 111 in the horizontal direction. The two ends of the fixing plate 11 are provided with through holes, and the through holes are provided with a fixing rod 12 which penetrates through the two groups of fixing plates 11. A counterweight 121 is installed at the end of the fixing rod 12 away from the fixing plate 11, and the counterweight 121 is arranged in a cylindrical structure. The counterweight 121 is used to change the overall mass distribution, so that the center of gravity of the fixing assembly 1 is more stable, thereby improving the anti-interference ability of the heat exchanger to external vibration during cold chain transportation.

[0040] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

Claims

1. A fin heat exchanger for cold chain transport, characterized by: The utility model provides a heat exchange device, including fixed component (1), two groups of heat exchange pipes (2) are sleeved on fixed component (1), and a plurality of groups of heat exchange fin component (3) are sleeved between two groups of heat exchange pipes (2), and connecting piece (4) is arranged between each group of heat exchange fin component (3) and fixed component (1); The heat exchange fin component (3) includes two groups of side heat exchange fins (31), a plurality of groups of middle heat exchange fins (32) are arranged between the two groups of side heat exchange fins (31), the plurality of groups of middle heat exchange fins (32) are non-equidistantly arranged, the side heat exchange fins (31) and the middle heat exchange fins (32) are all arranged as the same wave-shaped structure, and the thickness of the middle heat exchange fins (32) is less than the thickness of the side heat exchange fins (31).

2. The finned heat exchanger for cold chain transportation according to claim 1, characterized in that: The fixed component (1) includes two groups of fixed plates (11), the two groups of fixed plates (11) are arranged in the same direction, and the two groups of fixed plates (11) are arranged as L-shaped structures.

3. The finned heat exchanger for cold chain transportation according to claim 2, characterized in that: Symmetrical positions at both ends of the fixed plate (11) are provided with fixed holes (111), and a fixed groove (112) is formed between the two groups of fixed holes (111) in the horizontal direction.

4. The finned heat exchanger for cold chain transportation according to claim 2, characterized in that: A through hole is formed at the position of the two ends of the fixed plate (11), a fixed rod (12) is arranged at the through hole, the fixed rod (12) penetrates through the two groups of fixed plates (11), a counterweight (121) is arranged at the end of the fixed rod (12) away from the fixed plate (11), and the counterweight (121) is arranged as a cylindrical structure.

5. The finned heat exchanger for cold chain transportation according to claim 1, characterized in that: The heat exchange pipe (2) is arranged as an arch-shaped structure, one end of the heat exchange pipe (2) is provided with a water inlet (21) for entering the cooling liquid, and the other end is connected with a water outlet (22) for discharging the cooling liquid.

6. The finned heat exchanger for cold chain transportation according to claim 1, characterized in that: A plurality of groups of mounting holes (321) are formed in the middle heat exchange fin (32), and the positions of the mounting holes (321) correspond to the positions of the heat exchange pipes (2).

7. The finned heat exchanger for cold chain transportation according to claim 6, characterized in that: The connecting piece (4) is sleeved between each group of mounting holes (321), and the connecting piece (4) is matched with the shape of the mounting hole (321).

8. The finned heat exchanger for cold chain transportation according to claim 7, characterized in that: The connecting piece (4) includes a connecting ring (41) arranged on the inner wall of the mounting hole (321), a rubber ring (42) is arranged in the connecting ring (41), and the rubber ring (42) is arranged on the heat exchange pipe (2).

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