Novel aluminum tube heat exchanger

Abstract

The utility model discloses a novel aluminum tube heat exchanger, which relates to the technical field of heat exchangers and comprises a heat exchange tube, heat exchange fins and a backflow mechanism, the heat exchange fins are arranged on the periphery of the heat exchange tube, and the backflow mechanism is arranged between the heat exchange fins. The backflow mechanism comprises end plates, an upper box body, a lower box body, a feeding pipe, a discharging pipe, a connecting pipe, a communicating pipe and a one-way valve, the end plates are arranged on the two sides of the surface of the heat exchange pipe, the heat exchange fins are located between the end plates, in the medium downward flowing process, heat dissipation treatment can be conducted on the heat exchange fins close to the medium feeding end through the low-temperature performance of the heat exchange fins, and heat dissipation efficiency is improved. The surface temperature of the heat exchange fins close to the medium supply end is reduced, heat exchange treatment can be better conducted, then the media in the communicating pipes converge into the lower box body and flow back into the heat exchange pipes through the bottom connecting pipes to be continuously recycled, the temperature difference between the heat exchange fins at the upper end and the lower end of the heat exchanger is reduced, and the heat exchange efficiency is improved. And the heat exchange efficiency of the aluminum pipe heat exchanger is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technology, concretely to a novel aluminum pipe heat exchanger. BACKGROUND

[0002] It is known that the aluminum pipe heat exchanger is a kind of high-efficiency heat exchange equipment, usually by aluminum pipe and aluminum plate, and heat transfer is realized between metal pipe and plate by medium, and the aluminum pipe heat exchanger has wide application in industrial production, especially in chemical industry, power, steel, papermaking, printing, pharmaceutical and other fields, and is widely used.

[0003] Such as the application publication no. CN201277818Y, the application publication date is September 25, 2008, and the name is a finned tube heat exchanger, which can reduce cost, stable quality, high heat transfer efficiency.

[0004] The prior art has the following deficiencies: the aluminum pipe heat exchanger body is generally composed of aluminum pipe and heat exchange fins, the heat medium enters the aluminum pipe from one end and flows through the aluminum pipe, and then is discharged from the discharge end, and heat exchange treatment is carried out in the flow process, due to the single pipe structure inside the heat exchanger, the surface temperature of the heat exchange fins near the medium inflow end is higher, and the surface temperature of the heat exchange fins near the medium discharge end is lower, resulting in a large temperature difference between the upper and lower sides of the fins, and the heat dissipation efficiency has room for improvement. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a novel aluminum pipe heat exchanger to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a heat exchange pipe is provided, and a heat exchange fin and a reflux mechanism are further provided, the heat exchange pipe is provided with heat exchange fins on the periphery, and the heat exchange fins are provided with a reflux mechanism, the reflux mechanism includes an end plate, an upper box body, a lower box body, a supply pipe, a discharge pipe, a connecting pipe, a communication pipe and a one-way valve, the heat exchange pipe surface is provided with an end plate on both sides, and the heat exchange fins are located between the end plates, the upper and lower ends of the end plates are respectively welded with the upper box body and the lower box body, the heat exchange pipe communication end is provided with the supply pipe and the discharge pipe connected with external pipeline, the heat exchange pipe surface is provided with the connecting pipe connected with the inside of the upper box body and the lower box body on one side close to the upper box body and the lower box body, the heat exchange fin surface is welded with the communication pipe on one side, and the one-way valve is installed in the connecting pipe.

[0007] As a further description of the above technical scheme: the heat exchange pipe air supply end is provided with an air supply mechanism, the air supply mechanism comprises a fan cover, a rotating shaft, a guide plate, a damping rotating shaft and a connecting rod, the fan cover is arranged between the end plates towards the fan mounting side, the rotating shaft is mounted on the top of the inner wall of the fan cover, the guide plate is movably connected to the rotating shaft and located inside the fan cover, the guide plate is located inside the fan cover close to the exhaust pipe side, the damping rotating shaft is mounted on both sides of the fan cover and extends to the outside of the fan cover, and the fan cover is movably connected to the connecting rod through the damping rotating shaft, the connecting rod is connected to the side edge of the guide plate; the fan cover is mounted on the air supply end of the device main body, i.e. the exhaust end of the fan, the air generated by the fan is blown into the heat exchange pipe and the heat exchange fin surface by the fan cover, the heat is blown out to convert into hot air to realize heat exchange treatment, the guide plate structure is arranged inside the fan cover, the damping rotating shaft is twisted before operation, the guide plate is deflected around the rotating shaft through the connecting rod, the angle of the guide plate is adjusted, the guide plate is in an inclined state inside the fan cover, and the guide plate plays a guiding role on the airflow, during the blowing process of the air, most of the airflow is directly blown into the surface of the heat dissipation fin close to the heat medium supply end under the action of the guide plate, the heat exchange effect of the heat exchange fin of the supply end is improved, and a small part of the airflow is blown into the heat exchange fin close to the exhaust pipe position, the air supply mechanism is used to realize dispersion adjustment of the blown airflow, and the heat energy utilization rate is further improved.

[0008] As a further description of the above technical scheme: the installation holes are arranged at both ends of the end plate; the installation hole structure in the end plate facilitates the use of fasteners to fix the position of the end plate.

[0009] As a further description of the above technical scheme: the flow direction of the one-way valve in the connecting pipe on one side of the exhaust pipe is towards the inside of the upper box body, and the flow direction of the one-way valve in the connecting pipe on one side of the lower box body is towards the inside of the supply pipe; the one-way valve in the connecting pipe plays a role in guiding the flow of the medium, and ensures that part of the medium after heat exchange can enter the upper box body and re-enter the inside of the heat exchange pipe after use.

[0010] As a further description of the above technical scheme: the guide plate end is provided with a rubber pad between the inner wall top of the fan cover; the rubber pad structure plays a connecting role and does not affect the deflection of the angle of the guide plate.

[0011] In the above technical scheme, the novel aluminum pipe heat exchanger provided by the utility model is provided with heat exchange fins between the peripheries of the heat exchange pipes, the heat medium flows in through the inlet pipe and is subjected to heat exchange treatment in the flow process, the low-temperature medium subjected to heat exchange is discharged through the outlet pipe, in the flow process of the heat medium, part of the low-temperature medium subjected to heat exchange will pass through the connecting pipe into the inside of the upper box body, then flow into the inside of the lower box body under the action of gravity, the connecting pipe is welded on the surface of the heat exchange fin, in the process of medium downward flow, the heat exchange fin close to the medium inlet end is subjected to heat dissipation treatment by utilizing the low-temperature property, the surface temperature of the heat exchange fin close to the medium inlet end is reduced, so that the heat exchange treatment can be better performed, then the medium in the connecting pipe is converged into the inside of the lower box body and flows back to the inside of the heat exchange pipe through the bottom connecting pipe to continue to be used circularly, the temperature difference between the heat exchange fins at the upper and lower ends of the heat exchanger is reduced, and the heat exchange efficiency of the aluminum pipe heat exchanger is improved; the fan cover is installed at the air supply end of the device main body, that is, the air exhaust end of the fan, the air generated by the fan is blown to the surface of the heat exchange pipe and the heat exchange fin through the fan cover, heat is blown out to be converted into hot air to realize heat exchange treatment, the flow guide plate structure is arranged in the fan cover, the damping rotating shaft is twisted before operation, the flow guide plate is driven to deflect around the rotating shaft through the connecting rod to realize adjustment of the angle, the flow guide plate is in an inclined state in the fan cover and plays a guiding role on the airflow, in the process of air blowing in, most of the airflow is blown to the surface of the heat dissipation fin close to the heat medium inlet end under the action of the flow guide plate, the heat exchange effect on the heat exchange fin at the inlet end is improved, a small part of the airflow is blown to the position of the heat exchange fin close to the outlet pipe, the air blowing mechanism is utilized to realize dispersion adjustment of the blown airflow, and the heat energy utilization rate is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0013] Figure 1 The overall structure schematic diagram of the novel aluminum pipe heat exchanger provided by the embodiment of the present application is shown in the figure.

[0014] Figure 2 The upper box body and lower box body installation structure schematic diagram of the novel aluminum pipe heat exchanger provided by the embodiment of the present application is shown in the figure.

[0015] Figure 3 The local connection place enlarged structure schematic diagram between the upper box body and the lower box body of the novel aluminum pipe heat exchanger provided by the embodiment of the present application is shown in the figure.

[0016] Figure 4 The internal structure schematic diagram of the fan cover of the novel aluminum pipe heat exchanger provided by the embodiment of the present application is shown in the figure.

[0017] BRIEF DESCRIPTION OF DRAWINGS

[0018] 1, heat exchange pipe; 2, heat exchange fin; 3, backflow mechanism; 301, end plate; 302, mounting hole; 303, upper box body; 304, lower box body; 305, feeding pipe; 306, discharge pipe; 307, connecting pipe; 308, communication pipe; 309, one-way valve; 4, air supply mechanism; 401, air cover; 402, rotating shaft; 403, guide plate; 404, rubber pad; 405, damping rotating shaft; 406, connecting rod. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings.

[0020] Please refer to Figures 1-4 The utility model embodiment provides a technical scheme: including heat exchange pipe 1 still includes heat exchange fin 2 and backflow mechanism 3, heat exchange fin 2 is set up between the backflow mechanism 3 between the periphery of heat exchange pipe 1 is provided with heat exchange fin 2, the backflow mechanism 3 includes end plate 301, upper box body 303, lower box body 304, feeding pipe 305, discharge pipe 306, connecting pipe 307, communication pipe 308 and one-way valve 309, heat exchange pipe 1 surface both sides are provided with end plate 301 and heat exchange fin 2 are located between end plate 301, the upper and lower both ends between end plate 301 are welded with upper box body 303 and lower box body 304, the communication end of heat exchange pipe 1 is provided with feeding pipe 305 and discharge pipe 306 connected with external pipeline, heat exchange pipe 1 surface is close to upper box body 303 and lower box body 304 one side is provided with the connecting pipe 307 connected with the inside of upper box body 303 and lower box body 304, heat exchange fin 2 surface one side is welded with communication pipe 308, the connecting pipe 307 inside is all installed with one-way valve 309.

[0021] The utility model provides a still another embodiment provides, the heat exchange pipe 1 wind supply end is provided with the air supply mechanism 4, the air supply mechanism 4 includes the wind cover 401, the pivot 402, the deflector 403, the damping pivot 405 and the connecting rod 406, the end plate 301 between towards the fan installation side is provided with the wind cover 401, the wind cover 401 inner wall top position is equipped with the pivot 402 and is connected with the deflector 403 in the wind cover 401 inside through the pivot 402 swing, the deflector 403 is located in the wind cover 401 inside and is close to the discharge pipe 306 side, the wind cover 401 inside both sides are equipped with the damping pivot 405 and the damping pivot 405 end extends to the wind cover 401 outside, the wind cover 401 is connected with the connecting rod 406 of deflector 403 side edge connection through the damping pivot 405 swing, preferably, the wind cover 401 is installed in the wind supply end of device main body, i. e. the exhaust end of fan, the wind power generated by fan blows into the surface of heat exchange pipe 1 and heat exchange fin 2, and heat is blown out to convert into hot air to realize heat exchange treatment, the deflector 403 structure is equipped in the wind cover 401 inside, rotates the damping pivot 405 before operation, and the deflector 403 is deflected around the pivot 402 by the connecting rod 406, which realizes the adjustment of the angle, and the deflector 403 is in an inclined state inside the wind cover 401, which guides the airflow, and during the blowing process of wind power, most of the airflow is blown directly into the surface of the heat dissipation fin close to the heat medium supply end under the action of the deflector 403, which improves the heat exchange effect of the heat exchange fin 2 on the supply end, and a small part of the airflow is blown into the position of the heat exchange fin 2 close to the discharge pipe 306, and the air supply mechanism 4 is used to realize the dispersion adjustment of the blown airflow, which further improves the heat energy utilization rate.

[0022] As a further description of the above technical solutions: the installation hole 302 is formed in both ends of the end plate 301, the one-way valve 309 in the connecting pipe 307 on the side of the discharge pipe 306 has a flow direction towards the inside of the upper box body 303, and the one-way valve 309 in the connecting pipe 307 on the side of the lower box body 304 has a flow direction towards the inside of the supply pipe 305; preferably, the installation hole 302 in the end plate 301 is used to fix the position of the end plate 301 with fasteners, and the one-way valve 309 in the connecting pipe 307 is used to guide the medium flow, ensuring that part of the medium after heat exchange can enter the upper box body 303 and re-enter the inside of the heat exchange pipe 1 after use.

[0023] As a further description of the above technical solutions: the rubber pad 404 is installed between the end of the deflector 403 and the top of the inner wall of the wind cover 401; preferably, the rubber pad 404 is used to connect and does not affect the deflection of the angle of the deflector 403.

[0024] In another embodiment of the utility model, when in use, the heat exchange fin 2 is arranged between the outer periphery of the heat exchange pipe 1, the heat medium flows in through the inlet pipe 305 and is subjected to heat exchange treatment during the flow process, the low-temperature medium subjected to heat exchange is discharged through the outlet pipe 306, during the flow process of the heat medium, part of the low-temperature medium subjected to heat exchange passes through the connecting pipe 307 into the inside of the upper box body 303, and then flows into the inside of the lower box body 304 under the action of gravity, the communicating pipe 308 is welded on the surface of the heat exchange fin 2, during the downward flow of the medium, the heat exchange fin 2 close to the inlet end of the medium is subjected to heat dissipation treatment by utilizing the low-temperature property, the surface temperature of the heat exchange fin 2 close to the inlet end of the medium is reduced, and then the medium in the communicating pipe 308 is converged into the inside of the lower box body 304 and flows back to the inside of the heat exchange pipe 1 through the bottom connecting pipe 307 to continue to be used in circulation, the temperature difference between the heat exchange fins 2 at the upper and lower ends of the heat exchanger is reduced, and the heat exchange efficiency of the aluminum pipe heat exchanger is improved; the fan cover 401 is installed at the air supply end of the device main body, that is, the air exhaust end of the fan, the wind power generated by the fan is blown into the surface of the heat exchange pipe 1 and the heat exchange fin 2 through the fan cover 401, heat is blown out to be converted into hot air to realize heat exchange treatment, the flow guide plate 403 structure is arranged in the fan cover 401, the damping shaft 405 is twisted before operation, the flow guide plate 403 is deflected around the shaft 402 through the connecting rod 406, the angle is adjusted, the flow guide plate 403 is in an inclined state in the fan cover 401 and plays a guiding role on the airflow, during the blowing process of the wind power, most of the airflow is blown into the surface of the heat dissipation fin close to the heat medium inlet end under the action of the flow guide plate 403, the heat exchange effect of the heat exchange fin 2 at the inlet end is improved, a small part of the airflow is blown into the position of the heat exchange fin 2 close to the outlet pipe 306, the blowing airflow is dispersed and adjusted by using the air supply mechanism 4, and the heat energy utilization rate is further improved.

[0025] The above only describes certain exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that the spirit and scope of the utility model are not deviated, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the protection scope of the utility model claims.

Claims

1. A novel aluminum tube heat exchanger, comprising heat exchange tubes (1), characterized in that, It also includes heat exchange fins (2) and a reflux mechanism (3). The heat exchange tube (1) is provided with heat exchange fins (2) on its outer periphery and a reflux mechanism (3) is provided between the heat exchange fins (2). The reflux mechanism (3) includes an end plate (301), an upper box (303), a lower box (304), an inlet pipe (305), an outlet pipe (306), a connecting pipe (307), a connecting pipe (308), and a one-way valve (309). The heat exchange tube (1) is provided with end plates (301) on both sides of its surface and the heat exchange fins (2) are located between the end plates (301). The upper box (303) and lower box (304) are welded to the upper and lower ends of the heat exchange tube (1) respectively. The heat exchange tube (1) is provided with an inlet pipe (305) and an outlet pipe (306) connected to the external pipeline. The heat exchange tube (1) is provided with a connecting pipe (307) connected to the inside of the upper box (303) and lower box (304) on the side of its surface near the upper box (303) and lower box (304). The heat exchange fin (2) is provided with a connecting pipe (308) on one side of its surface. The connecting pipe (307) is provided with a one-way valve (309) installed inside the connecting pipe (307).

2. The novel aluminum tube heat exchanger according to claim 1, characterized in that, The heat exchange tube (1) is provided with an air supply mechanism (4) at the air supply end. The air supply mechanism (4) includes a shroud (401), a rotating shaft (402), a guide plate (403), a damping rotating shaft (405), and a connecting rod (406). The shroud (401) is provided between the end plates (301) facing the fan installation side. The rotating shaft (402) is installed at the top of the inner wall of the shroud (401) and is movably connected to the guide plate (403) located inside the shroud (401) through the rotating shaft (402). The guide plate (403) is located inside the shroud (401) on the side close to the discharge pipe (306).

3. A novel aluminum tube heat exchanger according to claim 2, characterized in that, The wind shield (401) has damping shafts (405) installed on both sides inside, and the ends of the damping shafts (405) extend to the outside of the wind shield (401). The wind shield (401) is movably connected to a connecting rod (406) that is connected to the side of the guide plate (403) through the damping shafts (405).

4. A novel aluminum tube heat exchanger according to claim 3, characterized in that, Mounting holes (302) are provided at both ends of the end plate (301).

5. A novel aluminum tube heat exchanger according to claim 4, characterized in that, The flow direction of the one-way valve (309) inside the connecting pipe (307) on one side of the discharge pipe (306) is towards the inside of the upper box (303).

6. A novel aluminum tube heat exchanger according to claim 5, characterized in that, The flow direction of the one-way valve (309) inside the connecting pipe (307) on one side of the lower box (304) is towards the inside of the feed pipe (305).

7. A novel aluminum tube heat exchanger according to claim 6, characterized in that, A rubber pad (404) is installed between the end of the guide plate (403) and the top of the inner wall of the wind shield (401).

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