Needle-shaped fin type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a needle type fin type heat exchanger which comprises a heat exchange tube and a fin mechanism, the fin mechanism comprises a sleeve and fin assemblies, the sleeve is sleeved on the outer side of the circumference of the heat exchange tube, and the fin assemblies are evenly arranged on the outer side of the circumference of the sleeve at intervals. According to the needle-shaped fin, the flow guide grooves are formed in the outer side of the circumference of the flow guide grooves, the heat exchange area is increased, the heat exchange efficiency is improved, meanwhile, the air guide assembly is arranged, the fan blades rotate in air flow through the guide spoons, the air flow is blown to the needle-shaped fin body, the air flow spirally rises through the spiral twisted flow guide grooves, and the heat exchange efficiency is improved. The pin-type fin body is arranged on the pin-type fin body, the heat exchange effect can be further improved, the pin-type fin body vibrates under the cooperation of the elastic effect of the spring, dust on the pin-type fin body is shaken off through vibration, dust self-cleaning is achieved, and the situation that the dust is accumulated on the pin-type fin body and influences the heat exchange effect is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and specifically relates to a pin-fin heat exchanger. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. In the processing of lithium batteries, a coating machine is required to spray the lithium battery substrate. The high-temperature gas discharged by the traditional coating machine uses a finned heat exchanger to recover the waste heat of the high-temperature gas. The finned heat exchanger achieves the purpose of enhancing heat transfer by adding fins to an ordinary base tube. The base tube and the fins are mainly made of thermal conductive materials to facilitate heat exchange.

[0003] The fin structure of existing heat exchangers is mostly a sheet structure. Although this structure has a large heat exchange area, it is also easy to cause dust accumulation and is not easy to clean, which may affect the heat exchange effect of the fin due to dust accumulation.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A pin-fin heat exchanger comprises a heat exchange tube and a fin mechanism, wherein the fin mechanism comprises a sleeve and a fin assembly, wherein the sleeve is sleeved on the outer side of the circumference of the heat exchange tube, and the fin assembly is evenly spaced and arranged on the outer side of the circumference of the sleeve;

[0007] The fin assembly includes a connecting rod and a needle-type fin body, one end of the connecting rod is radially fixedly connected to the circumferential outer wall of the sleeve, and the end of the connecting rod away from the sleeve is inserted into the needle-type fin body in a sliding fit connection, and an elastic structure for vibration of the needle-type fin body is also provided between the connecting rod and the needle-type fin body.

[0008] As a preferred embodiment of the utility model, a sliding plate is slidably connected between the circumferential inner walls of the pin-shaped fin body, and one end of the connecting rod away from the sleeve is fixedly connected to the center position of the sliding plate.

[0009] As a preferred embodiment of the utility model, the elastic structure is a spring, which is installed on the outer side of the circumference of the connecting rod and between the sliding plate near one end of the connecting rod and the inner wall of the pin-shaped fin body near one end of the connecting rod.

[0010] As a preferred embodiment of the utility model, an end block is provided at one end of the heat exchange tube, and a detachable threaded ring is fitted on the end of the heat exchange tube away from the end block. The outer side of the cross-section of the heat exchange tube is in the shape of a circular wavy line, and the inner side of the circumference of the sleeve is matched with the outer side of the circumference of the heat exchange tube.

[0011] As a preferred embodiment of the utility model, guide grooves are evenly spaced between the two ends of the outer circumference of the pin-shaped fin body, and the guide grooves are spirally twisted grooves with arc-shaped concave cross-sections.

[0012] As a preferred embodiment of the present invention, an air guide component for guiding airflow is also provided on the outer side of the circumference of the connecting rod close to one end of the sleeve and located outside the pin-shaped fin body.

[0013] As a preferred embodiment of the utility model, the air guide assembly includes a sleeve, which is mounted on the outer side of the circumference of the connecting rod in a rotatable fit connection, and the outer side of the circumference of the sleeve is close to one end of the needle-type fin body and is provided with fan blades in a circular array and inclined thereon, and the outer side of the circumference of the sleeve is close to one end of the sleeve and is provided with guide spoons in a circular array.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The guide groove arranged outside the circumference of the guide groove not only increases the heat exchange area and improves the heat exchange efficiency, but also the setting of the air guide component makes the fan blade rotate in the airflow through the guide spoon, so as to blow the airflow to the pin-shaped fin body. The airflow passes through the spirally twisted guide groove to make the airflow spirally rise, which is beneficial to further improve the heat exchange effect, and cooperates with the elastic effect of the spring to make the pin-shaped fin body vibrate, and the vibration shakes off the dust on the pin-shaped fin body, realizing dust self-cleaning, and avoiding the accumulation of dust on the pin-shaped fin body to affect the heat exchange effect.

[0016] 2. The sleeve is installed on the outer side of the heat exchange tube, which is convenient for the replacement and maintenance of the fin assembly. The cross-section of the outer side of the heat exchange tube and the inner side of the sleeve is annular and wavy, which not only limits the sleeve, but also increases the contact area between the heat exchange tube and the sleeve, thus ensuring the heat exchange effect.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0022] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the fin assembly of the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the heat exchange tube of the present utility model.

[0025] In the figure: 10, heat exchange tube; 11, end block; 12, collar; 20, sleeve; 30, fin assembly; 31, connecting rod; 32, needle fin body; 321, guide groove; 33, slide; 34, spring; 35, air guide assembly; 351, shaft sleeve; 352, fan blade; 353, guide spoon. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0027] A pin-fin heat exchanger, such as Figure 1-3 As shown, it includes a heat exchange tube 10 and a fin mechanism, the fin mechanism includes a sleeve 20 and a fin assembly 30, the sleeve 20 is sleeved on the outer circumference of the heat exchange tube 10, and the fin assembly 30 is evenly spaced and arranged on the outer circumference of the sleeve 20;

[0028] like Figure 3-5 As shown, the fin assembly 30 includes a connecting rod 31 and a needle-type fin body 32, one end of the connecting rod 31 is radially fixedly connected to the circumferential outer wall of the sleeve 20, and the end of the connecting rod 31 away from the sleeve 20 is inserted into the needle-type fin body 32 in a sliding fit connection, and an elastic structure for vibration of the needle-type fin body 32 is also arranged between the connecting rod 31 and the needle-type fin body 32.

[0029] like Figure 4-5 As shown, a slide plate 33 is slidably connected between the inner walls of the circumference of the pin-shaped fin body 32 , and one end of the connecting rod 31 away from the sleeve 20 is fixedly connected to the center position of the slide plate 33 .

[0030] like Figure 4-5 As shown, the elastic structure is a spring 34 , which is installed on the outer side of the circumference of the connecting rod 31 and is located between the sliding piece 33 and the bottom end of the pin-shaped fin body 32 .

[0031] like Figure 2 , Figure 6As shown, an end block 11 is provided at one end of the heat exchange tube 10, and a detachable threaded collar 12 is provided at the end of the heat exchange tube 10 away from the end block 11. The outer side of the cross section of the heat exchange tube 10 is in the shape of an annular wavy line, and the inner side of the circumference of the sleeve 20 is matched with the outer side of the circumference of the heat exchange tube 10.

[0032] Its function is that the sleeve 20 is sleeved on the outer side of the circumference of the heat exchange tube 10, which is convenient for the replacement and maintenance of the fin assembly 30, and the cross-section of the outer side of the circumference of the heat exchange tube 10 and the inner side of the circumference of the sleeve 20 is annular and wavy, which not only limits the sleeve 20, but also increases the contact area between the heat exchange tube 10 and the sleeve 20, thereby ensuring the heat exchange effect.

[0033] like Figure 5 As shown, guide grooves 321 are evenly spaced between the two ends of the outer side of the pin-shaped fin body 32, and the guide grooves 321 are spirally twisted grooves with a circular arc-shaped concave cross-section.

[0034] like Figure 4 As shown, an air guide assembly 35 for guiding airflow is also provided on the outer side of the circumference of the connecting rod 31 near one end of the sleeve 20 and located outside the pin-shaped fin body 32 .

[0035] like Figure 5 As shown, the air guide assembly 35 includes a sleeve 351, which is sleeved on the outer side of the circumference of the connecting rod 31 in a rotatable fit connection, and the outer side of the circumference of the sleeve 351 is close to one end of the needle-shaped fin body 32 and is provided with fan blades 352 in a circumferential array and inclined, and the outer side of the circumference of the sleeve 351 is close to one end of the sleeve 20 and is provided with guide spoons 353 in a circumferential array.

[0036] Its function is that the guide groove 321 arranged on the outer side of the circumference of the guide groove 321 not only increases the heat exchange area and improves the heat exchange efficiency, but also the setting of the air guide component 35 makes the fan blade 352 rotate in the airflow through the guide spoon 353, so that the airflow is blown to the needle-shaped fin body 32. The airflow passes through the spirally twisted guide groove 321, so that the airflow spirals up, which is beneficial to further improve the heat exchange effect, and cooperates with the elastic effect of the spring 34 to make the needle-shaped fin body 32 vibrate, and the vibration shakes off the dust on the needle-shaped fin body 32, realizing self-cleaning of dust, and avoiding the accumulation of dust on the needle-shaped fin body 32 to affect the heat exchange effect.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A pin-fin heat exchanger, comprising a heat exchange tube (10) and a fin mechanism, characterized in that: The fin mechanism comprises a sleeve (20) and a fin assembly (30), wherein the sleeve (20) is sleeved on the outer circumference of the heat exchange tube (10), and the fin assembly (30) is evenly spaced and arranged on the outer circumference of the sleeve (20); The fin assembly (30) comprises a connecting rod (31) and a pin-shaped fin body (32); one end of the connecting rod (31) is radially fixedly connected to the circumferential outer wall of the sleeve (20), and the end of the connecting rod (31) away from the sleeve (20) is inserted into the pin-shaped fin body (32) in a sliding fit connection; an elastic structure for vibration of the pin-shaped fin body (32) is also provided between the connecting rod (31) and the pin-shaped fin body (32).

2. The pin-fin heat exchanger according to claim 1, characterized in that: A sliding plate (33) is slidably connected between the circumferential inner walls of the pin-shaped fin body (32), and one end of the connecting rod (31) away from the sleeve (20) is fixedly connected to the center position of the sliding plate (33).

3. The pin-fin heat exchanger according to claim 2, characterized in that: The elastic structure is a spring (34), and the spring (34) is mounted on the outer side of the circumference of the connecting rod (31).

4. The pin-fin heat exchanger according to claim 3, characterized in that: An end block (11) is provided at one end of the heat exchange tube (10), and a sleeve ring (12) is detachably threadedly matched at one end of the heat exchange tube (10) away from the end block (11); the outer side of the cross section of the heat exchange tube (10) is in the shape of an annular wavy line, and the inner side of the circumference of the sleeve (20) matches the outer side of the circumference of the heat exchange tube (10).

5. The pin-fin heat exchanger according to claim 4, characterized in that: Guide grooves (321) are evenly spaced between the two ends of the outer circumference of the pin-shaped fin body (32), and the guide grooves (321) are in the shape of a spirally twisted groove with a circular arc-shaped concave cross section.

6. The pin-fin heat exchanger according to claim 5, characterized in that: An air guide component (35) for guiding airflow is also provided on the outer side of the circumference of the connecting rod (31) and close to one end of the sleeve (20) and located outside the pin-shaped fin body (32).

7. The pin-fin heat exchanger according to claim 6, characterized in that: The air guide assembly (35) comprises a shaft sleeve (351), which is sleeved on the outer side of the circumference of the connecting rod (31) in a rotationally matched connection, and the outer side of the circumference of the shaft sleeve (351) is close to one end of the pin-shaped fin body (32) and is provided with fan blades (352) in a circumferential array and in an inclined manner, and the outer side of the circumference of the shaft sleeve (351) is close to one end of the sleeve (20) and is provided with guide spoons (353) in a circumferential array and in a circumferential array.

Images