Circulating cooling tower

Abstract

The utility model provides a circulating cooling tower which comprises a hollow tower body, the hollow tower body is divided into a first-stage cooling cavity located on the outer side and a second-stage cooling cavity located on the inner side, a first-stage spiral guide vane is arranged in the first-stage cooling cavity, and a second-stage spiral guide vane is arranged in the second-stage cooling cavity; the lower end of the hollow tower body is connected with a water inlet pipe extending into the first-stage cooling cavity, the water inlet pipe is communicated with a plurality of first-stage spiral cooling pipes, the first-stage spiral cooling pipes are communicated with second-stage spiral cooling pipes in the second-stage cooling cavity, and water outlet pipes communicated with the second-stage spiral cooling pipes are outwards arranged in the second-stage cooling cavity; an air cooler and a high-pressure air pump are arranged outside the hollow tower body, the outlet end of the air cooler is communicated with the lower end of the primary cooling cavity, the outlet end of the high-pressure air pump is communicated with a vortex cooling pipe, and the cold end of the vortex cooling pipe is communicated with the lower end of the secondary cooling cavity. According to the cooling tower, water or cooling liquid is further cooled through the vortex cooling pipe, and the defects of an existing cooling tower in the aspect of low-temperature cooling are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial cooling and relates to a circulating cooling tower. Background Art

[0002] In modern industrial production, many processes and equipment generate significant amounts of heat, requiring effective cooling systems to ensure normal operation and production efficiency. Traditional cooling methods typically include natural cooling and air cooling, but these methods are often limited in effectiveness when dealing with high-power equipment or high-temperature processes, making them difficult to meet the high demands of industrial production.

[0003] Currently, one of the cooling equipment commonly used in industrial production is the cooling tower, which is used to cool the circulating cooling water or coolant and then circulate it to the equipment for cooling. The cooling tower lowers the water temperature by bringing the hot water into contact with the air, using evaporation and heat exchange processes. Depending on the ventilation method, cooling towers can be divided into natural ventilation cooling towers and mechanical ventilation cooling towers. Natural ventilation cooling towers rely on the temperature difference between the inside and outside of the tower to generate natural airflow to expel hot air. They are suitable for large-scale industrial projects, but the cooling effect is greatly affected by the ambient temperature. Mechanical ventilation cooling towers use fans to force air circulation to improve cooling efficiency. They are suitable for application scenarios that require higher cooling capacity and more precise control of the cooling process.

[0004] However, in many industrial processes, particularly in chemical reactions, precision machining, and high-energy physics experiments, it's often necessary to cool water or coolant to temperatures far below ambient. Existing cooling towers typically use ambient air to cool water or liquids, limiting the ultimate temperature of the water or coolant to the air temperature. Particularly in high-temperature environments, ambient air's cooling effect is extremely limited, making it incapable of cooling the water or coolant to the required low temperatures, thus impacting production efficiency and product quality. Utility Model Content

[0005] The purpose of the utility model is to provide a circulating cooling tower, which uses vortex cooling tubes to generate low-temperature air to further cool water or coolant, thereby solving the shortcomings of existing cooling towers in low-temperature cooling and improving the efficiency and reliability of industrial production.

[0006] In order to solve the above technical problems, the utility model provides a circulating cooling tower, comprising a hollow tower body, wherein the hollow tower body is divided into a primary cooling chamber located on the outside and a secondary cooling chamber located on the inside by a partition layer, the upper end of the hollow tower body is provided with a primary air outlet communicating with the primary cooling chamber and a secondary air outlet communicating with the secondary cooling chamber, the inner walls of the primary cooling chamber are connected with a spirally ascending primary spiral guide vane, and the secondary cooling chamber is provided with a spirally descending secondary spiral guide vane;

[0007] The lower end of the hollow tower body is connected to a water inlet pipe extending into the primary cooling chamber, the water inlet pipe is connected to a plurality of primary spiral cooling pipes spirally ascending along the primary spiral guide blades, each primary spiral cooling pipe is connected to a secondary spiral cooling pipe spirally downward along the secondary spiral guide blades in the secondary cooling chamber, and a water outlet pipe is provided in the secondary cooling chamber, extending outward from the hollow tower body and connected to the free end of each secondary spiral cooling pipe;

[0008] An air cooler and a high-pressure air pump are provided outside the hollow tower body. The outlet end of the air cooler is connected to the lower end of the first-level cooling chamber through a cold air pipe. The outlet end of the high-pressure air pump is connected to a vortex cooling pipe. The cold end of the vortex cooling pipe is connected to the lower end of the second-level cooling chamber through a cold air pipe.

[0009] By adopting the above technical solution, high-temperature circulating water enters the hollow tower body through the water inlet pipe, becomes low-temperature circulating water, and is then discharged through the water outlet pipe, flowing into the circulating cooling system to cool the equipment. During the process, the air cooler works, blowing cold air into the first-stage cooling chamber. In the first-stage cooling chamber, the air spirals up along the first-stage spiral guide vanes, gradually exchanging heat with the liquid in the first-stage spiral cooling tube, absorbing the temperature of the liquid, and finally being discharged through the first-stage air outlet. The high-pressure air pump works, passing high-pressure air into the vortex cooling tube. Under the action of the vortex cooling tube, the cold and hot air flows are separated. The cold air flows from the cold end of the vortex cooling tube through the cold air pipe into the second-stage cooling chamber. In the second-stage cooling chamber, the air spirals up along the second-stage spiral guide vanes, gradually exchanging heat with the liquid in the second-stage spiral cooling tube, absorbing the temperature of the liquid, and finally being discharged through the second-stage air outlet. Finally, after heat exchange with the cold air, the liquid in the second-stage spiral cooling tube is cooled to a low temperature and discharged from the water outlet pipe.

[0010] The utility model is further configured such that the outer sides of each first-stage spiral cooling tube and each second-stage spiral cooling tube are provided with spiral heat exchange fins arranged along the spirals.

[0011] The present invention is further configured such that a vertical guide pipe is vertically arranged in the middle of the secondary cooling cavity, and the secondary spiral guide blades are arranged between the inner wall of the secondary cooling cavity and the outer wall of the vertical guide pipe.

[0012] The utility model is further configured such that the first-level air outlet is arranged on the side wall of the upper end of the hollow tower body, the upper end of the hollow tower body is provided with a second-level exhaust hood connected to the upper end of the second-level cooling cavity, and the second-level air outlet is arranged on the side wall of the second-level exhaust hood.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, the utility model adopts a two-stage cooling method to cool down the hot water, and uses the vortex cooling tube to generate low-temperature air to further cool the water or coolant. Compared with using normal temperature air, it can better cool the water or coolant to the required low temperature, thereby solving the shortcomings of the existing cooling tower in low-temperature cooling and improving the efficiency and reliability of industrial production.

[0015] Secondly, the utility model uses a first-level spiral guide blade and a second-level spiral guide blade, which can make the air flow along a longer path in the cooling tower. In combination with the first-level spiral cooling pipe and the second-level spiral cooling pipe, the liquid in the cooling pipe and the air can undergo more sufficient heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional view used to show the internal structure of the hollow tower;

[0018] Figure 3 Used to demonstrate the connection between the first-stage spiral cooling tube and the second-stage spiral cooling tube.

[0019] Among them, 1. Hollow tower body; 2. Partition layer; 3. Primary cooling chamber; 4. Secondary cooling chamber; 5. Primary air outlet; 6. Secondary exhaust hood; 7. Secondary air outlet; 8. Primary spiral guide blade; 9. Vertical guide pipe; 10. Secondary spiral guide blade; 11. Water inlet pipe; 12. Primary spiral cooling pipe; 13. Secondary spiral cooling pipe; 14. Spiral heat exchange fin; 15. Water outlet pipe; 16. Air cooler; 17. High-pressure air pump; 18. Cold air pipe; 19. Vortex cooling pipe; 20. Cold air pipe. DETAILED DESCRIPTION

[0020] The following is a detailed description of a circulating cooling tower according to the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0021] Example, see Figure 1-3A circulating cooling tower includes a hollow tower body 1, which is divided into a primary cooling chamber 3 located on the outside and a secondary cooling chamber 4 located on the inside by a partition layer 2. The side wall of the upper end of the hollow tower body 1 is provided with a plurality of primary air outlet holes 5 distributed in a circumferential manner and connected to the primary cooling chamber 3. The upper end of the hollow tower body 1 is provided with a secondary exhaust hood 6 connected to the upper end of the secondary cooling chamber 4. The side wall of the secondary exhaust hood 6 is provided with a plurality of secondary air outlet holes 7 distributed in a circumferential manner and connected to the secondary cooling chamber 4. A spirally ascending primary spiral guide vane 8 is connected between the inner walls of the primary cooling chamber 3, a vertically arranged vertical guide pipe 9 is provided in the middle of the secondary cooling chamber 4, and a spirally descending secondary spiral guide vane 10 is provided between the inner wall of the secondary cooling chamber 4 and the outer wall of the vertical guide pipe 9.

[0022] The lower end of the hollow tower body 1 is connected to a water inlet pipe 11 extending into the primary cooling chamber 3. The water inlet pipe 11 is connected to three primary spiral cooling pipes 12 that spirally rise along the primary spiral guide blades 8. Each primary spiral cooling pipe 12 is connected to a secondary spiral cooling pipe 13 that spirals downward along the secondary spiral guide blades 10 in the secondary cooling chamber 4. The outside of each primary spiral cooling pipe 12 and each secondary spiral cooling pipe 13 is provided with four spiral heat exchange fins 14 arranged along the spiral to improve the heat exchange efficiency between the liquid and the air in the cooling pipe. A water outlet pipe 15 is provided in the secondary cooling chamber 4, extending outward from the hollow tower body 1 and communicating with the free end of each secondary spiral cooling pipe 13.

[0023] A cooling fan 16 and a high-pressure air pump 17 are installed outside the hollow tower body 1. The outlet of the cooling fan 16 is connected to the lower end of the primary cooling chamber 3 via a cold air pipe 18. The outlet of the high-pressure air pump 17 is connected to a vortex cooling tube 19. The cold end of the vortex cooling tube 19 is connected to the lower end of the secondary cooling chamber 4 via a cold air pipe 20. The vortex cooling tube (Vortex Tube) uses the high-speed rotation of compressed gas to generate vortices. The centrifugal force creates a temperature difference within the gas, thereby separating the cold and hot air streams. The cold air is discharged from the center, and the hot air is discharged from the periphery. This device does not require an external power source and can achieve rapid cooling using only compressed gas.

[0024] Working Principle: High-temperature circulating water enters the hollow tower body 1 through the water inlet pipe 11, becomes low-temperature circulating water, and is then discharged through the water outlet pipe 15, flowing into the circulating cooling system to cool the equipment. During this process, the air cooler 16 operates, blowing cold air into the primary cooling chamber 3. Within this chamber, the air spirals upward along the primary spiral guide vanes 8, gradually exchanging heat with the liquid within the primary spiral cooling tube 12, absorbing the liquid's temperature before being discharged through the primary air outlet 5. A high-pressure air pump 17 operates, injecting high-pressure air into the vortex cooling tube 19. This separates the hot and cold air flows, and the cold air flows from the cold end of the vortex cooling tube 19 through the cold air pipe 20 into the secondary cooling chamber 4. Within this chamber, the air spirals upward along the secondary spiral guide vanes 10, gradually exchanging heat with the liquid within the secondary spiral cooling tube 13, absorbing the liquid's temperature before being discharged through the secondary air outlet 7. After finally exchanging heat with the cold air, the liquid within the secondary spiral cooling tube 13 cools to a low temperature and is discharged from the water outlet pipe 15.

[0025] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0026] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A circulating cooling tower, comprising a hollow tower body (1), characterized in that: The hollow tower body (1) is divided into a primary cooling chamber (3) located on the outside and a secondary cooling chamber (4) located on the inside by a partition layer (2); a primary air outlet (5) communicating with the primary cooling chamber (3) and a secondary air outlet (7) communicating with the secondary cooling chamber (4) are provided at the upper end of the hollow tower body (1); a primary spiral guide vane (8) that spirally ascends is connected between the inner walls of the primary cooling chamber (3); and a secondary spiral guide vane (10) that spirally descends is provided in the secondary cooling chamber (4); The lower end of the hollow tower body (1) is connected to a water inlet pipe (11) extending into the primary cooling chamber (3); the water inlet pipe (11) is connected to a plurality of primary spiral cooling pipes (12) spirally ascending along the primary spiral guide blades (8); each primary spiral cooling pipe (12) is connected to a secondary spiral cooling pipe (13) spirally descending along the secondary spiral guide blades (10) in the secondary cooling chamber (4); and a water outlet pipe (15) is provided in the secondary cooling chamber (4), extending outward from the hollow tower body (1) and connected to the free end of each secondary spiral cooling pipe (13); An air cooler (16) and a high-pressure air pump (17) are provided outside the hollow tower body (1); the outlet end of the air cooler (16) is connected to the lower end of the primary cooling chamber (3) through a cold air pipe (18); the outlet end of the high-pressure air pump (17) is connected to a vortex cooling pipe (19); the cold end of the vortex cooling pipe (19) is connected to the lower end of the secondary cooling chamber (4) through a cold air pipe (20).

2. A circulating cooling tower according to claim 1, characterized in that: The outer sides of each first-stage spiral cooling tube (12) and each second-stage spiral cooling tube (13) are provided with spiral heat exchange fins (14) arranged along the spirals.

3. A circulating cooling tower according to claim 1, characterized in that: A vertical guide pipe (9) is provided in the middle of the secondary cooling cavity (4), and the secondary spiral guide blade (10) is provided between the inner wall of the secondary cooling cavity (4) and the outer wall of the vertical guide pipe (9).

4. A circulating cooling tower according to claim 1, characterized in that: The primary air outlet (5) is arranged on the side wall of the upper end of the hollow tower body (1); the upper end of the hollow tower body (1) is provided with a secondary exhaust hood (6) that is in communication with the upper end of the secondary cooling cavity (4); and the secondary air outlet (7) is arranged on the side wall of the secondary exhaust hood (6).

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