Finned tube type heat exchanger

Abstract

The utility model discloses a finned tube type heat exchanger, which relates to the technical field of heat exchange equipment, and adopts the technical scheme that the finned tube type heat exchanger comprises a tube body and radiating fins, a clamping component is arranged on the radiating fins, and an ash cleaning component is arranged on the clamping component; the ash removal assembly comprises a gas ejector pipe and a gas pump, a plurality of gas holes are formed in the gas ejector pipe, the gas pump is arranged on the clamping assembly and drives compressed gas to be ejected from the gas holes of the gas ejector pipe, and the length of the gas ejector pipe is adjustable; the clamping assembly comprises a holder and a plurality of clamping blocks, embedding grooves are formed in the clamping blocks, and elastic pieces are arranged in the embedding grooves. By arranging the air pump and the air ejector pipe, the air pump is used for driving high-pressure air to be ejected from the air holes in the air ejector pipe, the surfaces of the cooling fins are directly and efficiently blown, accumulated dust is effectively removed, meanwhile, the length of the air ejector pipe is adjustable, the air ejector pipe can adapt to cooling fin sets with different heights, the dust removal coverage range is ensured, and the dust removal efficiency is improved. Therefore, long-term stability and heat exchange efficiency of the heat exchanger are improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and more specifically, to a finned tube heat exchanger. Background Technology

[0002] With the development of various industries, finned tube heat exchangers, as highly efficient heat transfer devices, have been widely used in industrial heat exchange. The performance of finned tube heat exchangers is not only affected by the spacing and shape of the fins, but also closely related to the fluid flow state, temperature changes, and environmental conditions. Common finned tube heat exchangers typically improve heat exchange efficiency by increasing the heat transfer area and optimizing the fluid flow state. However, the performance of traditional structures still has significant shortcomings under complex operating conditions.

[0003] For example, Chinese patent CN112345678A discloses a corrugated finned tube heat exchanger, which increases the heat exchange area through corrugated fins. However, the fixed fin spacing leads to a significant decrease in heat exchange efficiency in the latter half of the fluid flow due to the reduced temperature difference. Furthermore, while the corrugated structure enhances fluid turbulence, it is prone to dust accumulation and blockage in practical applications, especially in humid or high-dust environments, further affecting the long-term performance of the heat exchanger.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a finned tube heat exchanger.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a finned tube heat exchanger, comprising a tube body and heat dissipation fins, wherein the heat dissipation fins are provided with through holes for accommodating the tube body to pass through, the heat dissipation fins are provided with a clamping assembly, and the clamping assembly is provided with a dust removal assembly.

[0007] The dust removal assembly includes a jet pipe and an air pump. One end of the jet pipe is fixed to the clamping assembly, and the other end of the jet pipe extends between two adjacent heat dissipation fins. The jet pipe has several air holes. The air pump is located on the clamping assembly and drives compressed gas to be ejected from the air holes of the jet pipe. The length of the jet pipe is adjustable.

[0008] The clamping assembly includes a retainer and several clamping blocks. The air pump and the jet pipe are fixed on the top and bottom surfaces of the retainer. The clamping blocks are provided with slots for accommodating the heat dissipation fins and elastic elements for abutting the heat dissipation fins are provided in the slots.

[0009] The present invention is further configured such that: the jet pipe includes at least two connecting pipes, and the connecting pipes are provided with a locking mechanism, the locking mechanism including an elastic buckle located on the outer wall of one end of the connecting pipe and a limiting groove located on the inner wall of the other end of the connecting pipe and capable of accommodating the elastic buckle; the cross-section of the elastic buckle is semi-circular.

[0010] The present invention is further configured such that: the outer wall of the connecting pipe near the limiting groove is provided with an external thread, the retainer is provided with an internal thread that matches the external thread, and the connecting pipe is threadedly connected to the retainer.

[0011] The present invention is further configured such that: the connecting pipe is provided with an exhaust channel and an air hole communicating with the exhaust channel; a dustproof sheet is detachably connected inside the connecting pipe; the dustproof sheet is provided with a plurality of valves; the plurality of valves abut against each other and form a sealed channel; and the two ends of the dustproof sheet are fixed to the connecting pipe by fasteners.

[0012] The present invention is further configured such that: the fixing member is a bolt, the dustproof sheet has a circular hole for accommodating the bolt passing through, and the inner wall of the connecting pipe has a threaded hole that matches the bolt.

[0013] The present invention is further configured such that one end of the connecting pipe is detachably connected to a dust cover.

[0014] The present invention is further configured such that: the elastic element is a sponge pad, and the side of the elastic element near the groove opening is provided with a guide slope.

[0015] The present invention is further configured such that both the heat dissipation fins and the tube body are made of brass.

[0016] In summary, this utility model has the following beneficial effects: by setting an air pump and an air jet pipe, and with the air jet pipe length adjustable, the air jet pipe can be precisely inserted into the gap between two adjacent heat dissipation fins. The air pump drives high-pressure gas to be ejected from the air holes on the air jet pipe, directly and efficiently blowing the surface of the heat dissipation fins, effectively removing accumulated dust. At the same time, the adjustable length of the air jet pipe allows it to adapt to heat dissipation fin groups of different heights, ensuring the dust removal coverage area, thereby improving the long-term stability and heat exchange efficiency of the heat exchanger. Furthermore, while the high-pressure gas is blowing on the surface of the heat dissipation fins, it can also achieve a heat dissipation effect, thus ensuring the heat exchange efficiency of the heat exchanger. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3This is a cross-sectional view of the present invention;

[0020] Figure 4 for Figure 3 Enlarged diagram of section A in the middle;

[0021] Figure 5 for Figure 3 Enlarged schematic diagram of section B in the middle.

[0022] In the diagram: 1. Tube body; 2. Heat dissipation fins; 3. Through hole; 4. Clamping assembly; 5. Dust cleaning assembly; 51. Air jet pipe; 52. Air pump; 53. Air hole; 41. Cage; 42. Clamping block; 421. Groove; 422. Elastic element; 511. Connecting pipe; 5111. Elastic buckle; 5112. Limiting groove; 5113. Exhaust channel; 5114. Dustproof sheet; 5115. Valve; 5116. Bolt; 512. Dustproof cover. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] To better describe and illustrate the embodiments of this application, reference may be made to one or more accompanying drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the utility model creation, the embodiments or preferred embodiments of this application, or the preferred methods described herein.

[0025] In the description of this utility model, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] A finned tube heat exchanger, such as Figure 1As shown, the device includes a tube body 1 and several heat dissipation fins 2. The heat dissipation fins 2 have through holes 3 to accommodate the tube body 1. The tube body 1 passes through the through holes 3 on the outermost heat dissipation fins 2, sequentially passing through them in the order of their arrangement. This ensures that the inner wall of each through hole 3 is in contact with the outer wall of the tube body 1, thereby guaranteeing the heat exchange efficiency of the heat dissipation fins 2. Both the heat dissipation fins 2 and the tube body 1 are made of brass. Brass has good thermal conductivity, enabling it to quickly transfer heat from the tube body 1 to the heat dissipation fins 2, further ensuring heat exchange efficiency. Furthermore, brass contains copper, an antioxidant element, thus providing excellent corrosion resistance and maintaining a smooth surface for a long time. This makes it suitable for various environments and extends the service life of the equipment.

[0029] A clamping assembly 4 is provided on the heat dissipation fins 2, and a dust removal assembly 5 is provided on the clamping assembly 4. Specifically, the dust removal assembly 5 includes an air jet pipe 51 and an air pump 52. One end of the air jet pipe 51 is fixed to the clamping assembly 4, and the other end of the air jet pipe 51 extends between two adjacent heat dissipation fins 2. Several air holes 53 are opened on the air jet pipe 51. The air pump 52 is located on the clamping assembly 4 and drives compressed gas to be ejected from the air holes 53 of the air jet pipe 51. The length of the air jet pipe 51 is adjustable. By setting the air pump 52 and the air jet pipe 51, and by making the length of the air jet pipe 51 adjustable, the air jet... The nozzle 51 can be precisely inserted into the gap between two adjacent heat dissipation fins 2. The air pump 52 drives high-pressure gas to be ejected from the air hole 53 on the nozzle 51, which directly and efficiently blows the surface of the heat dissipation fins 2, effectively removing the accumulated dust. At the same time, the adjustable length of the nozzle 51 allows it to adapt to heat dissipation fins 2 of different heights, ensuring the dust removal coverage area, thereby improving the long-term stability and heat exchange efficiency of the heat exchanger. In addition, the high-pressure gas can also dissipate heat while blowing on the surface of the heat dissipation fins 2, thus ensuring the heat exchange efficiency of the heat exchanger.

[0030] The clamping assembly 4 includes a retainer 41 and several clamping blocks 42. The air pump 52 and the jet pipe 51 are fixed to the top and bottom surfaces of the retainer 41. Each clamping block 42 has a groove 421 for accommodating the heat dissipation fins 2, and the groove 421 contains an elastic element 422 for abutting the heat dissipation fins 2. The retainer 41 acts as a rigid support frame, ensuring that the air pump 52 and the jet pipe 51 do not shift under the reaction force of the high-pressure airflow, preventing the dust removal assembly 5 from deviating from its working position due to vibration. The design of the groove 421 increases the contact area between the clamping block 42 and the heat dissipation fins 2, increasing the friction between them and ensuring a stable connection between the heat dissipation fins 2 and the clamping block 42. The elastic element 422 is a sponge pad. The side of the sponge pad near the groove 421 has a guide slope. The sponge pad has a certain elasticity, which can absorb the impact force during installation or vibration, and avoid the rigid clamping from causing scratches or deformation to the surface of the heat dissipation fins 2. The compression and rebound elasticity of the sponge ensures that the pressure distribution of the groove 421 on the fins is uniform, avoiding local stress concentration that could cause the fins to warp, ensuring close contact between the fins and the tube body 1, and maintaining heat exchange efficiency. The guide slope forms a flared structure, which automatically guides the heat dissipation fins 2 into the groove 421 when they are inserted, without the need for fine adjustment of the position, significantly reducing the assembly difficulty. It is especially suitable for densely arranged fin groups and improves installation efficiency.

[0031] Specifically, the jet pipe 51 includes at least two connecting pipes 511. The connecting pipes 511 are equipped with a locking mechanism, which includes an elastic buckle 5111 located on the outer wall of one end of the connecting pipe 511 and a limiting groove 5112 located on the inner wall of the other end of the connecting pipe 511 that can accommodate the elastic buckle 5111. The elastic buckle 5111 has a semi-circular cross-section. By increasing or decreasing the number of connecting pipes 511, the operator can freely adjust the total length of the jet pipe 51 to adapt to heat exchangers of different specifications, thereby improving the versatility of the equipment. At the same time, the jet pipe 51 can extend to the bottom of the heat exchanger to ensure that the airflow covers all fin gaps and avoids cleaning blind spots. By setting the elastic buckle 5111 and the fiber groove, the semi-circular cross-section elastic buckle 5111 cooperates with the limiting groove 5112, automatically locking when inserted and separating by pressing when disassembling, without tools, greatly simplifying the cleaning or replacement process of the dust removal component 5.

[0032] The connecting pipe 511 is provided with an exhaust channel 5113 and an air hole 53 connecting the exhaust channel 5113. A dustproof sheet 5114 is detachably connected inside the connecting pipe 511. The dustproof sheet 5114 is provided with several valves 5115. The connecting pipe 511 is connected to the outer wall of the pipe near the limiting groove 5112 and has an external thread. The retainer 41 has an internal thread that matches the external thread. The connecting pipe 511 is threadedly connected to the retainer 41. By setting the external and internal threads, the connection strength between the connecting pipe 511 and the retainer 41 is ensured, thereby improving the stability of the jet pipe 51 during the use of the equipment. A dustproof cover 512 is detachably connected to one end of the connecting pipe 511. By setting the dustproof cover 512, dust is prevented from entering from one end of the connecting pipe 511, which plays a protective role. It also protects the dustproof sheet 5114, preventing the dustproof sheet 5114 from being exposed to the outside, thereby extending the service life of the dustproof sheet 5114.

[0033] The dustproof sheet 5114 and its two ends are fixed to the connecting pipe 511 by fasteners. By setting the dustproof sheet 5114, it can play a role in dust prevention. When there is no airflow, the multiple valves 5115 of the dustproof sheet 5114 press against each other to form a sealed channel, effectively preventing dust, particles or moisture from entering the air jet pipe 51 in reverse, avoiding blockage of the air hole 53, and ensuring long-term stable operation. When the air pump 52 is started, the high-pressure airflow opens the valves 5115, forming a smooth airflow. When the system is stopped, the valve 5115 automatically closes to prevent dust. Specifically, the fixing component is a bolt 5116. The dustproof plate 5114 has a round hole to accommodate the bolt 5116. The inner wall of the connecting tube 511 has a threaded hole that matches the bolt 5116. The dustproof plate 5114 is fixed to the connecting tube 511 by the bolt 5116. It can be quickly disassembled and assembled without special tools, which facilitates regular cleaning of accumulated dust or replacement of damaged valves 5115, reduces downtime, and lowers maintenance costs.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A finned tube heat exchanger, characterized by: The utility model provides a heat dissipation fin group, including pipe body (1) and heat dissipation fin (2), be equipped with the through -hole (3) of containing pipe body (1) to pass through on heat dissipation fin (2), be equipped with clamping assembly (4) on heat dissipation fin (2), be equipped with dust cleaning subassembly (5) on clamping assembly (4), The dust cleaning subassembly (5) includes a jet pipe (51) and a gas pump (52), one end of the jet pipe (51) is fixed with the clamping assembly (4), the other end of the jet pipe (51) is inserted between two adjacent heat dissipation fins (2), a plurality of gas holes (53) are formed on the jet pipe (51), the gas pump (52) is arranged on the clamping assembly (4) and drives compressed gas to be sprayed from the gas holes (53) of the jet pipe (51), and the length of the jet pipe (51) is adjustable. The clamping assembly (4) includes a retainer (41) and a plurality of clamping blocks (42), the gas pump (52) and the jet pipe (51) are fixed on the top surface and the bottom surface of the retainer (41), the clamping block (42) is provided with an embedding groove (421) for accommodating the heat dissipation fin (2), and the embedding groove (421) is provided with an elastic element (422) for abutting against the heat dissipation fin (2).

2. A finned tube heat exchanger according to claim 1, wherein: The jet pipe (51) includes at least two connecting pipes (511), the connecting pipe (511) is provided with a locking mechanism, the locking mechanism includes an elastic buckle (5111) on the outer wall of one end of the connecting pipe (511) and a limiting groove (5112) on the inner wall of the other end of the connecting pipe (511) and capable of accommodating the elastic buckle (5111) to be embedded, and the cross section of the elastic buckle (5111) is semicircular.

3. A finned tube heat exchanger according to claim 2, wherein: An outer thread is arranged on the outer wall of one side of the connecting pipe (511) close to the limiting groove (5112), the retainer (41) is provided with an inner thread matched with the outer thread, and the connecting pipe (511) is screwed on the retainer (41).

4. A finned tube heat exchanger according to claim 2, wherein: The connecting pipe (511) is provided with an exhaust channel (5113) and a gas hole (53) communicating with the exhaust channel (5113), the connecting pipe (511) is detachably connected with a dustproof sheet (5114), the dustproof sheet (5114) is provided with a plurality of valves (5115), the plurality of valves (5115) abut against each other and form a sealed channel, and the both ends of the dustproof sheet (5114) are fixed with the connecting pipe (511) through a fixing member.

5. A finned tube heat exchanger according to claim 4, wherein: The fixing member is a bolt (5116), a round hole is formed on the dustproof sheet (5114) for accommodating the bolt (5116) to pass through, and a threaded hole matched with the bolt (5116) is formed on the inner wall of the connecting pipe (511).

6. A finned tube heat exchanger according to claim 5, wherein: One end of the connecting pipe (511) is detachably connected with a dustproof cover (512).

7. A finned tube heat exchanger according to claim 1, wherein: The elastic element (422) is a sponge pad, and a guide inclined surface is arranged on one side of the elastic element (422) close to the slot of the embedding groove (421).

8. The finned tube heat exchanger according to claim 1, wherein: The heat dissipation fin (2) and the pipe body (1) are made of brass.

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