A new type of closed cooling tower

Abstract

This utility model proposes a novel closed-loop cooling tower, belonging to the field of cooling tower technology. The main body includes a water tank and a ventilation section. A heat dissipation coil is installed inside the main body. A spray pump sprays water from the water tank onto the surface of the heat dissipation coil. It also includes a compressor and a fan. The fan is installed on the side wall of the main body, and the compressor is connected to the cooling coil, which is installed inside the main body. Depending on actual needs, it can choose between "natural cooling first" and "mechanical refrigeration," or both modes can be activated simultaneously. When mechanical refrigeration is engaged, further cooling can be achieved to obtain a lower target temperature. The operating state of "natural cooling first" and "mechanical refrigeration first" can be adjusted according to the inlet water temperature, environmental parameters, and target temperature to achieve efficient and coordinated operation, making it more environmentally friendly.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and more specifically, to a novel closed-loop cooling tower. Background Technology

[0002] Cooling towers are needed for cooling in various applications, including precision air conditioning cooling systems in data centers, process cooling in the chemical and pharmaceutical industries, constant temperature cooling systems in new energy battery production, industrial circulating water cooling in high-temperature and high-humidity areas, and various production equipment with strict requirements for outlet water temperature. In high-temperature, high-humidity environments or high-load cooling scenarios, traditional closed-circuit cooling towers may face problems such as insufficient cooling effect and inability to reduce the circulating water temperature to the target value. Secondly, traditional closed-circuit cooling towers have a slow cooling effect through ventilation and spraying, requiring multiple cooling towers to work simultaneously, increasing energy consumption, wasting a lot of costs, and not in line with the concept of green environmental protection.

[0003] Therefore, there is an urgent need for a cooling tower that can quickly reduce the temperature to the target value. Utility Model Content

[0004] In view of this, this utility model proposes a closed cooling tower with multiple cooling methods.

[0005] The technical solution of this utility model is implemented as follows: A novel closed cooling tower includes a main body and a spray water pump. The main body includes a water tank and a ventilation section. A heat dissipation coil is installed inside the main body. The spray water pump sprays water from the water tank onto the surface of the heat dissipation coil. The tower also includes a compressor and a fan. The fan is installed on the side wall of the main body. The compressor is connected to a cooling coil, which is installed inside the main body.

[0006] Based on the above technical solutions, preferably, the main body further includes a base plate, a ventilation section, an air-cooling section, a spray section, and a tower top. The base plate is located at the bottom of the water tank, the ventilation section is located at the top of the water tank, the air-cooling section is located above the ventilation section, the spray section is located above the air-cooling section, and the tower top seals the end of the spray section away from the air-cooling section.

[0007] Based on the above technical solutions, preferably, the fan includes several fans, which are installed on the side wall of the ventilation section and / or the air-cooling section. The fans blow air into the main body, and the gas blown into the main body is blown out from the ventilation section.

[0008] Based on the above technical solutions, preferably, the heat dissipation coil is disposed in the ventilation section and / or the air-cooling section.

[0009] Based on the above technical solutions, preferably, one end of the spray water pump is connected to a spray water inlet pipe, and the other end of the spray water pump is connected to a spray water outlet pipe.

[0010] Based on the above technical solutions, preferably, the spray water inlet pipe is set inside the water tank, and the cooling coil is wound around the spray water inlet pipe.

[0011] Based on the above technical solutions, preferably, the spray outlet pipe passes through the water tank, the ventilation section and the air-cooling section in sequence, and a spray head is installed at one end of the spray outlet pipe that extends into the spray section.

[0012] Based on the above technical solutions, preferably, the cooling coil includes a cooling liquid inlet end and a cooling liquid return end, both of which are connected to the compressor.

[0013] Based on the above technical solutions, preferably, the spray water pump and compressor are fixedly mounted on the base plate, and the spray water pump and compressor are fixedly mounted outside the main body.

[0014] This utility model provides a novel closed-loop cooling tower that offers the following advantages over existing technologies: The spray pump sprays water from the tank onto the surface of the heat exchange coil. The water sprayed onto the surface of the heat exchange coil exchanges heat with the liquid inside the heat exchange coil, thus cooling the liquid inside the heat exchange coil. The fan blows air directly onto the cooling coil from the side wall of the main body. The closer the fan is to the cooling coil, the more obvious the effect. The fan increases the airflow around the cooling coil, which accelerates the temperature reduction of the cooling coil and the water sprayed onto the cooling coil by the spray pump, further improving the cooling effect of the cooling tower. The refrigeration unit can be implemented using screw, scroll, or plate heat exchangers + compressor units. The cooled medium after refrigeration is transported to the main body through cooling coils to further reduce the temperature inside the cooling tower and accelerate the cooling effect of the cooling tower. Depending on the actual needs, one of the cooling methods, "natural cooling first and mechanical cooling," can be selected, or both cooling modes can be activated simultaneously. When the mechanical cooling mode is involved, it can further reduce the temperature to achieve a lower target temperature. The operation status of "natural cooling first and mechanical cooling first" can be adjusted according to the inlet water temperature, environmental parameters, and target temperature to achieve efficient collaborative work and make it more green and environmentally friendly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a cross-sectional view of a novel closed-loop cooling tower according to the present invention. Figure 2 This is a partial structural schematic diagram of a novel closed-loop cooling tower according to the present invention; Figure 3 This is a cross-sectional view of another novel closed-loop cooling tower according to the present invention. Figure 4 This is a cross-sectional view of another novel closed-loop cooling tower according to the present invention. Figure 5 This is a cross-sectional view of another novel closed-loop cooling tower according to the present invention. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model. Example 1

[0018] like Figure 1 and Figure 2 As shown, a novel closed-loop cooling tower includes a main body 1 and a spray water pump 2. The main body 1 includes a water tank 12 and a ventilation section 13. A heat dissipation coil is installed inside the main body 1. The spray water pump 2 sprays water from the water tank 12 onto the surface of the heat dissipation coil. The tower also includes a refrigeration unit 3 and a fan 4. The fan 4 is installed on the side wall of the main body 1 and blows air onto the heat dissipation coil. The refrigeration unit 3 is connected to a cooling coil 31, which is installed inside the main body 1. The spray pump 2 sprays water from the water tank 12 onto the surface of the heat dissipation coil. The water sprayed onto the surface of the heat dissipation coil exchanges heat with the liquid inside the heat dissipation coil, cooling the liquid inside the heat dissipation coil. The fan 4 blows air directly onto the heat dissipation coil from the side wall of the main body 1. The fan 4 is closer to the heat dissipation coil, so the effect is more obvious. The fan 4 increases the airflow around the heat dissipation coil, accelerating the temperature reduction of the heat dissipation coil and the water sprayed onto the heat dissipation coil by the spray pump 2, further improving the cooling effect of the cooling tower. The refrigeration unit 3 can be implemented by screw, scroll, or plate heat exchanger + compressor unit. The cooled medium after refrigeration is transported to the interior of the main body 1 through the cooling coil 31, further reducing the temperature inside the cooling tower and accelerating the cooling effect of the cooling tower.

[0019] The device employs a two-stage cooling mode: first natural cooling, then mechanical refrigeration. Natural cooling: The spray water pump 2 continuously circulates the circulating water in the water tank 12 to the surface of the heat dissipation coil for spray cooling. Then, the fan 4 draws air into the main body 1 to increase air circulation to the heat dissipation coil and shorten the cooling time.

[0020] Mechanical refrigeration: The refrigeration unit is started to perform deep cooling. Mechanical refrigeration delivers the refrigerant into the interior of the main body 1, thereby rapidly cooling the temperature inside the main body 1.

[0021] Depending on the actual needs, one of the cooling methods, "natural cooling first and mechanical cooling," can be selected, or both cooling modes can be activated simultaneously. When the mechanical cooling mode is involved, it can further reduce the temperature to achieve a lower target temperature. The operation status of "natural cooling first and mechanical cooling first" can be adjusted according to the inlet water temperature, environmental parameters, and target temperature to achieve efficient collaborative work and make it more green and environmentally friendly.

[0022] The main body 1 also includes a base plate 11, a ventilation section 13, an air-cooling section 14, a spray section 15, and a tower top 16. The base plate 11 is located at the bottom of the water tank 12, the ventilation section 13 is located above the water tank 12, the air-cooling section 14 is located above the ventilation section 13, the spray section 15 is located above the air-cooling section 14, and the tower top 16 seals the end of the spray section away from the air-cooling section 14. The cooling tower is a space formed by the sequential combination of the base plate 11, the water tank 12, the ventilation section 13, the air-cooling section 14, the spray section 15, and the tower top 16.

[0023] In this embodiment, there are four fans 4. Two fans 4 are installed on the side wall of the ventilation section 13, and two fans 4 are installed on the side wall of the air-cooling section 14. The fans 4 blow air into the main body 1, and the air blown into the main body 1 is blown out from the ventilation section 13. At this time, the air blown in by the fans 4 is blown out from the ventilation section 13, forming flowing air, which facilitates air circulation. The larger the volume and power of the fans 4, the better the air circulation. Therefore, the volume and power of the fans 4 are arranged according to actual needs. The arrangement can also have a certain impact on the air circulation. Therefore, the arrangement of the fans 4 can be adjusted according to actual needs.

[0024] The heat dissipation coil is installed in the ventilation section 13 and the air-cooling section 14. At this time, heat dissipation coils can be installed in both the ventilation section 13 and the air-cooling section 14.

[0025] One end of the spray water pump 2 is connected to a spray inlet pipe 22, and the other end is connected to a spray outlet pipe 21. The spray inlet pipe 22 is installed inside the water tank 12, and the cooling coil 31 is wound around the spray inlet pipe 22. The spray outlet pipe 21 passes through the water tank 12, the ventilation section 13, and the air-cooling section 14 in sequence, and a nozzle 23 is installed at the end of the spray outlet pipe 21 that extends into the spray section 15. The nozzle 23 atomizes the water in the water tank 12. The atomized water has a larger contact area with the cooling coil, resulting in better heat dissipation. The atomized water is also easily cooled quickly by the fan 4, which facilitates the cooling of the water tower.

[0026] The cooling coil 31 includes a cooling liquid inlet end 312 and a cooling liquid return end 311, both of which are connected to the refrigeration unit 3. The spray water pump 2 and the refrigeration unit 3 are fixedly mounted on the base plate 11 and are also fixedly mounted outside the main body 1.

[0027] 1. Significantly improved cooling effect: Combining the advantages of natural cooling and mechanical refrigeration, the temperature of the circulating water in the water tank 12 can be reduced to close to or below the ambient wet-bulb temperature, improving the cooling capacity by 5-15℃ compared to traditional closed cooling towers.

[0028] 2. Wider range of applications: It can operate stably in harsh environments such as high temperature and high humidity, meeting the needs of precision equipment, high-load industrial production and other scenarios with strict requirements for cooling water temperature.

[0029] 3. Energy consumption optimization: Intelligent control enables "on-demand cooling". Natural cooling can be used independently in spring and autumn or during low load, and mechanical cooling is only activated when necessary to reduce overall energy consumption.

[0030] 4. Improved system reliability: natural cooling and mechanical refrigeration complement each other; if one refrigeration mode fails, another refrigeration mode can be activated, reducing the risk of production interruption. Example 2

[0031] like Figure 3-5 As shown, a novel closed-loop cooling tower differs from Embodiment 1 in that it includes three fans 4: one fan 4 is located on the side wall of the ventilation section 13, and the other two fans 4 are located on the side wall of the air-cooling section 14. The heat dissipation coil is mainly located in the air-cooling section 14, which reduces the number of fans 4 and saves energy. Similarly, ... Figure 4 Ventilation section 13 may not require a fan; both fans can be installed in air-cooled section 14. Similarly, it can be done as follows: Figure 5 As shown, both fans 4 are installed inside the ventilation section 13.

[0032] The larger the volume and power of fan 4, the better the air circulation. Therefore, the size and power of fan 4 are arranged according to actual needs. The arrangement can also have a certain impact on air circulation. Therefore, the arrangement of fan 4 can be adjusted according to actual needs.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel closed-loop cooling tower, comprising a main body (1) and a spray water pump (2), wherein the main body (1) includes a water tank (12) and a ventilation section (13), a heat dissipation coil is disposed inside the main body (1), and the spray water pump (2) sprays water from the water tank (12) onto the surface of the heat dissipation coil, characterized in that: It also includes a refrigeration unit (3) and a fan (4), the fan (4) being installed on the side wall of the main body (1), the fan (4) blowing air onto the heat dissipation coil, the refrigeration unit (3) being connected to a cooling coil (31), the cooling coil (31) being installed inside the main body (1).

2. The novel closed-loop cooling tower as described in claim 1, characterized in that: The main body (1) also includes a base plate (11), a ventilation section (13), an air-cooling section (14), a spray section (15), and a tower top (16). The base plate (11) is located at the bottom of the water tank (12), the ventilation section (13) is located at the top of the water tank (12), the air-cooling section (14) is located at the top of the ventilation section (13), the spray section (15) is located at the top of the air-cooling section (14), and the tower top (16) seals the end of the spray section away from the air-cooling section (14).

3. A novel closed-loop cooling tower as described in claim 1, characterized in that: The fan (4) includes several fans, which are installed on the side wall of the ventilation section (13) and / or the air-cooling section (14). The fan (4) blows air into the main body (1), and the gas blown into the main body (1) is blown out from the ventilation section (13).

4. A novel closed-loop cooling tower as described in claim 3, characterized in that: The heat dissipation coil is located in the ventilation section (13) and / or the air-cooling section (14).

5. A novel closed-loop cooling tower as described in claim 2, characterized in that: One end of the spray pump (2) is connected to a spray inlet pipe (22), and the other end of the spray pump (2) is connected to a spray outlet pipe (21).

6. A novel closed-loop cooling tower as described in claim 5, characterized in that: The spray inlet pipe (22) is installed inside the water tank (12), and the cooling coil (31) is wound around the spray inlet pipe (22).

7. A novel closed-loop cooling tower as described in claim 5, characterized in that: The spray outlet pipe (21) passes through the water tank (12), the ventilation section (13) and the air-cooling section (14) in sequence, and a nozzle (23) is installed at one end of the spray outlet pipe (21) that extends into the spray section (15).

8. A novel closed-loop cooling tower as described in claim 6, characterized in that: The cooling coil (31) includes a cooling inlet end (312) and a cooling return end (311), both of which are connected to the refrigeration unit (3).

9. A novel closed-loop cooling tower as described in claim 2, characterized in that: The spray water pump (2) and the refrigeration unit (3) are fixedly installed on the base plate (11), and the spray water pump (2) and the refrigeration unit (3) are fixedly installed outside the main body (1).

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