Dual-channel forced air cooling energy comprehensive utilization device

Abstract

The present invention discloses a dual-channel forced air-cooling energy comprehensive utilization device, which includes a first heat conduction tube, a second heat conduction tube and an external air duct; the second heat conduction tube is sleeved outside the first heat conduction tube, and the external air duct is sleeved outside the second heat conduction tube, so as to form an industrial circulating water flow channel between the first heat conduction tube and the second heat conduction tube, form an external air flow channel between the second heat conduction tube and the external air duct, and form a central air flow channel inside the first heat conduction tube; a fan is provided at the air inlet ends of the external air flow channel and the central air flow channel; an industrial water inlet and an industrial water outlet are respectively provided on the upstream side and the downstream side of the industrial circulating water flow channel.

Description

Technical Field

[0001] The present invention relates to the field of energy technologies, and particularly to a dual-channel forced air-cooled energy comprehensive utilization device. Background Art

[0002] A cooling tower or a cooling water tower is a common industrial cooling device. Its working principle is to utilize the convection formed by the blown-in air and the water sprinkled from above to discharge the heat source. Part of the water evaporates during the convection, taking away the corresponding latent heat of vaporization, thereby reducing the water temperature.

[0003] However, existing cooling towers have many defects. For an open cooling tower, for example, the circulating water is sprayed in a spray manner onto the fiberglass packing. Through the contact between water and air, heat exchange is achieved. Then, a fan drives the air flow circulation in the tower, and the hot air flow after heat exchange with water is taken out, thereby achieving cooling. However, the direct contact between water and air forms a humid environment in the tower, and microorganisms may accumulate in the packing, making it difficult to clean. In addition, if the spraying is uneven, it will also lead to problems such as uneven heat exchange and low efficiency.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual-channel forced air-cooled energy comprehensive utilization device, which can overcome the defects existing in existing cooling towers and cooling water towers and improve the energy utilization efficiency.

[0006] To solve the above problems, an embodiment of the present invention provides a dual-channel forced air-cooled energy comprehensive utilization device, including a first heat conduction tube, a second heat conduction tube, and an external air duct; the second heat conduction tube is sleeved outside the first heat conduction tube, and the external air duct is sleeved outside the second heat conduction tube, thereby forming an industrial circulating water flow channel between the first heat conduction tube and the second heat conduction tube, forming an external air flow channel between the second heat conduction tube and the external air duct, and forming a central air flow channel inside the first heat conduction tube;

[0007] Outside the air inlets of the external air flow channel and the central air flow channel, there are fans; an industrial water inlet and an industrial water outlet are respectively provided on the upstream side and the downstream side of the industrial circulating water flow channel.

[0008] Further, the fan is a hydrodynamic fan powered by the surplus pressure of an industrial water pump after cooling.

[0009] Further, high-efficiency heat exchange fins are arranged inside and / or outside the first heat conduction tube. The heat exchange fins can be high-efficiency heat exchange fins provided by Beijing Yingxiang Borui Refractory Materials Technology Co., Ltd.

[0010] Further, the heat exchange fins are connected to the first heat conduction tube by full welding.

[0011] Further, heat exchange fins are arranged inside and / or outside the second heat conduction tube. The heat exchange fins can be high-efficiency heat exchange fins provided by Beijing Yingxiang Borui Refractory Materials Technology Co., Ltd.

[0012] Further, the heat exchange fins are connected to the second heat conduction tube by full welding.

[0013] Further, a wind guiding cone is provided at the air inlet of the central air flow passage.

[0014] Further, a heating water inlet and a heating water outlet are respectively connected to the upper and lower ends of the first heat conduction tube; a detachable first sealing device is arranged between the air inlet of the central air flow passage and the heating water inlet, and a detachable second sealing device is arranged between the air outlet of the central air flow passage and the heating water outlet.

[0015] Further, an extended section is provided at the air outlet of the first heat conduction tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By adopting the internal and external double-channel air cooling, the wind energy resources are fully utilized, realizing the comprehensive utilization of energy. During the cooling process, the industrial water does not come into contact with the air flow, and no difficult-to-clean microorganisms are generated, reducing the decontamination cost. Since the device operates in a closed environment, there is no water loss phenomenon, saving a large amount of water resources. In winter, the waste heat can also be used for heating, saving energy. In the preferred mode, a manually disassembled blind plate or an electric valve can be used to switch between the air cooling and heating modes, realizing the full-season utilization of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a front structural view of the double-channel forced air-cooling energy comprehensive utilization device provided by the embodiment of the present invention.

[0018] Figure 2 FIG. 2 is a cross-sectional view of the double-channel forced air-cooling energy comprehensive utilization device provided by the embodiment of the present invention;

[0019] In the figures: 1 - hydrodynamic fan; 2 - wind guiding cone; 3 - heating water inlet; 4 - industrial water outlet; 5 - external air duct; 6 - first heat conduction tube; 7 - second heat conduction tube; 8 - industrial water inlet; 9 - heating water outlet; 10 - extended section; 11 - central air flow passage; 12 - industrial circulating water flow passage; 13 - external air flow passage; 14 - first blind plate; 15 - second blind plate; 17 - first inner fin; 18 - first outer fin; 19 - second inner fin; 20 - second outer fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments shown in the accompanying drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and then implement the present invention, rather than limiting the scope of the present invention in any way.

[0021] Please refer to Figure 1 , an embodiment of the present invention provides a dual-channel forced air-cooled energy comprehensive utilization device, including a first heat conduction pipe 6, a second heat conduction pipe 7 and an external air duct 5. The second heat conduction pipe 7 is sleeved outside the first heat conduction pipe 6, and the external air duct 5 is sleeved outside the second heat conduction pipe 7. The outermost external air duct 5 can also play a role in blocking sunlight.

[0022] The inside of the first heat conduction pipe 6 is a central air flow passage 11. The gap between the first heat conduction pipe 6 and the second heat conduction pipe 7 is an industrial circulating water flow passage 12, and the space between the second heat conduction pipe 7 and the external air duct 5 is an external air flow passage 13.

[0023] One end of the second heat conduction pipe 7 is connected to an industrial water inlet 8, which is the water inlet of the industrial circulating water flow passage 12. The other end of the second heat conduction pipe 7 is connected to an industrial water outlet 4, which is the water outlet of the industrial circulating water flow passage 12.

[0024] One end of the external air duct 5 is provided with a hydrodynamic fan 1. There is a certain distance between the upper wind end of the first heat conduction pipe 6 and the upper wind end of the external air duct 5. At the upper wind end of the first heat conduction pipe 6, that is, the upper wind end of the central air flow passage 11, a wind guiding cone 2 is provided. The opening of the wind guiding cone 2 gradually shrinks towards the inside of the first heat conduction pipe 6, so that the air flow from the hydrodynamic fan 1 can be more concentratedly introduced into the first heat conduction pipe 6, improving the heat exchange efficiency inside the first heat conduction pipe 6.

[0025] The water discharged from the industrial water outlet 4 is cooled water. This part of the cooled water can be returned to the hydrodynamic fan 1 to provide power for the hydrodynamic fan 1. For example, the hydrodynamic fan 1 usually includes a water turbine shaft and a fan. A cooling water flow passage can be arranged outside the hydrodynamic fan 1. When the cooling water flow passage passes through the water turbine shaft of the hydrodynamic fan 1, it drives the hydrodynamic fan 1 to move.

[0026] In some other embodiments, the hydrodynamic fan 1 can also be replaced by other types of fans.

[0027] On the other hand, a heating water inlet 3 and a heating water outlet 9 are respectively connected to the upper and lower ends of the first heat conduction tube 6. A first blind plate 14 is provided between the air inlet of the first heat conduction tube 6 (i.e., the air inlet of the central air flow passage 11) and the heating water inlet 3, and a second blind plate 15 is provided between the air outlet of the first heat conduction tube 6 (i.e., the air outlet of the central air flow passage) and the heating water outlet 9. The first blind plate 14 and the second blind plate 15 can be installed manually. During the heating season, the first blind plate 14 and the second blind plate 15 seal the air inlet and air outlet of the first heat conduction tube 6 for flowing heating water, playing the role of winter heating. When the heating season ends, the first blind plate 14 and the second blind plate 15 are removed to switch to the return air cooling mode. The two modes are used alternately, and the device can be effectively utilized in each season, improving the utilization efficiency of the device. Among them, the first blind plate 14 and the second blind plate 15 can also be replaced by other sealing devices, such as valves.

[0028] A lengthening section 10 can be added to the air outlet of the first heat conduction tube 6 to generate a pulling force on the central air or install a non-powered fan.

[0029] Both the first heat conduction tube 6 and the second heat conduction tube 7 provided in this embodiment are pipes with internal and external heat exchange fins. The first heat conduction tube 6 is internally provided with a plurality of first internal fins 17. The first internal fins 17 can be arranged inside the first heat conduction tube 6 in a certain rule and form. For example, the first internal fins 17 are arranged in two rows and are respectively connected to the inner walls of the two semi-circular parts of the first heat conduction tube 6, and a certain distance is left between the two rows of first internal fins 17. Outside the first heat conduction tube 6, a plurality of first external fins 18 are arranged at intervals along the circumferential surface. The first external fins 18 form a certain angle with the outer wall of the first heat conduction tube 6. In this embodiment, each first external fin 18 is substantially perpendicular to the outer wall of the first heat conduction tube 6.

[0030] In this embodiment, a plurality of second internal fins 19 are arranged at intervals along the circumferential surface on the inner wall of the second heat conduction tube 7, and the second internal fins 19 and the first external fins 18 are staggered from each other. Outside the second heat conduction tube 7, a plurality of second external fins 20 are arranged at intervals along the circumferential surface.

[0031] It should be understood that the number and arrangement shape of the fins are not limited to the situations in this embodiment. As long as the heat exchange efficiency can be improved, other configurations can also be adopted. Each fin can be fixed on the inner wall or outer wall of the pipe by welding, and the welding method can be full welding.

[0032] Specifically, the heat exchange fins can adopt the structures invented by the inventor and described in Chinese patent publication documents CN110145956A and CN110345800A.

[0033] In this embodiment, both the first heat conduction tube 6 and the second heat conduction tube 7 are provided with heat exchange fins on both the inner and outer sides, making full use of the limited space between the inside and outside of the tubes and improving the heat exchange efficiency.

[0034] The first heat conduction tube 6 and the second heat conduction tube 7 are preferably made of materials with good heat conductivity, such as various metals. The outer air guide tube can be made of plastic.

[0035] The device of this embodiment is an independent unit. When multiple such units are connected in series and used, it can be used in scenarios with a larger heat exchange capacity. The device of this embodiment can replace a cooling tower, a cooling water tower, etc. and be used as a device for cooling industrial water. The internal and external double-channel air cooling makes full use of natural wind and improves the cooling efficiency.

[0036] During use, industrial circulating water is introduced into the industrial circulating water flow channel 12, the water-powered fan 1 is turned on, and air is guided into the central air flow channel 11 and the inner air flow channel of the outer air flow channel to cool the industrial circulating water. With this device, the industrial circulating water can be cooled from 45°C to below 32°C. In the winter heating season, the first blind plate 14 and the second blind plate 15 are installed for the circulation of heating water.

[0037] In this article, specific examples are used to elaborate on the inventive concept in detail. The description of the above embodiments is only used to help understand the core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, any obvious modification, equivalent replacement, or other improvement made without departing from the inventive concept should be included in the protection scope of the present invention.

Claims

1. A dual-channel forced-air-cooled energy comprehensive utilization device, characterized in that It includes a first heat conduction tube, a second heat conduction tube and an external air duct; the second heat conduction tube is sleeved outside the first heat conduction tube, and the external air duct is sleeved outside the second heat conduction tube, so as to form an industrial circulating water flow channel between the first heat conduction tube and the second heat conduction tube, an external air flow channel between the second heat conduction tube and the external air duct, and a central air flow channel inside the first heat conduction tube; A fan is provided outside the air inlets of the external air flow channel and the central air flow channel; an industrial water inlet and an industrial water outlet are respectively provided on the upstream side and the downstream side of the industrial circulating water flow channel; the upper and lower ends of the first heat conduction tube are respectively connected with a heating water inlet and a heating water outlet; a detachable first sealing device is arranged between the air inlet of the central air flow channel and the heating water inlet, and a detachable second sealing device is arranged between the air outlet of the central air flow channel and the heating water outlet; a wind guiding cone hopper is arranged at the air inlet of the central air flow channel.

2. The dual-channel forced air cooling energy comprehensive utilization device according to claim 1, wherein The fan is a hydrodynamic fan powered by the residual pressure of an industrial water pump after cooling.

3. The dual-channel forced-air-cooled energy comprehensive utilization device according to claim 1, wherein Heat exchange fins are arranged inside and / or outside the first heat conduction tube.

4. The dual-channel forced air-cooled energy comprehensive utilization device according to claim 3, wherein The heat exchange fins are connected to the first heat conduction tube by full welding.

5. The dual-channel forced-air-cooled energy comprehensive utilization device according to claim 1, characterized in that, Heat exchange fins are arranged inside and / or outside the second heat conduction tube.

6. The dual-channel forced air-cooled energy comprehensive utilization device according to claim 5, wherein, The heat exchange fins are connected to the second heat conduction tube by full welding.

7. The dual-channel forced air-cooled energy comprehensive utilization device according to claim 1, wherein An extended section is provided at the air outlet of the first heat conduction tube and a non-powered fan device is installed.

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