Cooling tower for cooling water supply in four seasons

Abstract

The utility model discloses a cooling tower for cooling water supply in four seasons, which belongs to the technical field of cooling towers, and comprises a tower body, a coil pipe, radiating fins and an unpowered hood, the tower body is provided with an air inlet and an air outlet, the coil pipe is connected with a first inlet pipe, a first outlet pipe and a second outlet pipe, and the coil pipe is connected with a second inlet pipe. The path length of the liquid flowing out of the first outlet pipe through the coil pipe is A, the path length of the liquid flowing out of the second outlet pipe through the coil pipe is B, and B is smaller than or equal to 0.8 A. The unpowered air cap exhausts air in the tower body, when the cooling tower is used in winter, air flow does not need a fan to provide power, and energy consumption is reduced; when the cooling tower is used in winter, the temperature of discharged media is controllable, the temperature range is large, and the use requirements of different subsequent places are met; a spraying assembly and a fan are arranged, so that the cooling use requirement of the liquid medium in summer is met.

Description

Technical Field

[0001] This utility model belongs to the field of cooling tower technology, specifically relating to a cooling tower that can provide cooling water supply in all four seasons. Background Technology

[0002] In industrial production, cooling water and other liquid media are typically used to circulate and cool equipment. After the cooling water is heated, a cooling tower is usually used to cool it down before recirculation. Cooling towers generally use coils to circulate the liquid media, with external air or spray circulating liquid exchanging heat with the liquid media flowing inside the coils to lower its temperature. Existing cooling towers, regardless of summer or winter use, use fans to drive airflow within the tower. However, in winter, due to the low air temperature, a lower airflow velocity can achieve a better cooling effect, making fan-driven cooling inefficient. Furthermore, because of the low air temperature in winter, while the cooling effect is good, the cooled liquid media may sometimes be below the required temperature, causing inconvenience for recirculation and making it difficult to meet the different temperature requirements of different locations. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a cooling tower that can supply cooling water in all four seasons and reduce the energy consumption of the cooling tower when it is used in winter.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A cooling tower for all-season cooling water supply includes a tower body, a coil installed inside the tower body, heat dissipation fins connected to the coil, and a non-powered air cap installed on the tower body. The tower body is provided with an air inlet and an air outlet. The coil is connected to a first inlet pipe, a first outlet pipe, and a second outlet pipe. The path length of the liquid flowing out of the first outlet pipe through the coil is A, and the path length of the liquid flowing out of the second outlet pipe through the coil is B, where B≤0.8A.

[0006] Furthermore, both the first and second outlet pipes are connected to the mixing tank, which is connected to a main outlet pipe.

[0007] Furthermore, the first outlet pipe is equipped with a first opening regulating valve, the second outlet pipe is equipped with a second opening regulating valve, and the main outlet pipe is equipped with a third opening regulating valve and a third temperature sensor.

[0008] Furthermore, a first temperature sensor is provided on the first outlet pipe, and a second temperature sensor is provided on the second outlet pipe.

[0009] Furthermore, the mixing tank is equipped with baffles.

[0010] Furthermore, the first outlet pipe is connected to the main outlet pipe via an intermediate pipe, and the intermediate pipe is equipped with an intermediate valve.

[0011] Furthermore, the tower body is also equipped with a spray assembly for spraying liquid onto the heat dissipation fins. The spray assembly includes a spray pump, a delivery pipe connected to the spray pump, a spray pipe connected to the delivery pipe, and a nozzle installed on the spray pipe. A water storage tank is provided at the bottom of the tower body, and the spray pump is connected to the water storage tank through a suction pipe.

[0012] Furthermore, the air outlet is located at the top of the tower body, and the top of the tower body is also equipped with a first fan corresponding to the air outlet.

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

[0014] 1. The cooling tower is equipped with a tower body, coils, heat dissipation fins, and a non-powered air hood. The non-powered air hood exhausts the air inside the tower, so the air flow does not require a fan to provide power when the cooling tower is used in winter, thus reducing energy consumption.

[0015] 2. The coil is equipped with a first outlet pipe and a second outlet pipe and a mixing tank. The first outlet pipe and the second outlet pipe are equipped with opening adjustment valves. The liquid medium in the mixing tank is discharged after mixing. When the cooling tower is used in winter, the temperature of the discharged medium is controllable and the temperature range is large, which meets the needs of different places.

[0016] 3. Install spray system and fan to meet the cooling needs of liquid media in summer;

[0017] 4. It meets the cooling water needs in spring, summer and autumn, and can also meet the public cooling water demand of "Seven Degrees Water" in winter. In winter, the Seven Degrees Water supply room can be shut down and the public cooling water of "Seven Degrees Water" can be provided through the cooling tower, saving a lot of energy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the coil and mixing tank structure in the embodiment;

[0020] Figure 3 This is a top view of the tower structure in the embodiment. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0022] like Figure 1 and Figure 3 As shown, a cooling tower for all-season cooling water supply includes a tower body 1, a coil 2, heat dissipation fins 3, a non-powered fan cap 4, a mixing tank 5, and a spray assembly. The tower body 1 is rectangular, and the coil 2 is installed inside the tower body 1. The coil 2 is made of deoxidized copper tubing and includes multiple S-shaped bends. The heat dissipation fins 3 are connected to the outer wall of the coil 2 and are evenly distributed in an array. The heat dissipation fins 3 are made of aluminum fins, which can increase the heat dissipation area of ​​the coil 2, resulting in good thermal conductivity and high cost performance. The tower body 1 is provided with an air inlet 11 and an air outlet 12. The air inlet 11 is located on the lower side of the tower body 1, and the air outlet 12 is located on the top of the tower body 1. The non-powered air cap 4 is located on the top of the tower body 1, corresponding to the position of the air outlet 12. The non-powered air cap 4 adopts the existing stainless steel non-powered air cap. There are two non-powered air caps 4. Under the action of the non-powered air cap 4, the air inside the tower body 1 is discharged. The outside air enters the tower body 1 through the air inlet 11. When the air passes through the heat dissipation fins 3 and the coil 2, it exchanges heat with the liquid medium in the coil 2, thereby reducing the temperature of the liquid medium in the coil 2. The air with the increased temperature is discharged from the air outlet 12 through the non-powered air cap 4.

[0023] like Figure 1 and Figure 2 As shown, the coil 2 is connected to a first inlet pipe 21, a first outlet pipe 22, and a second outlet pipe 23. The first inlet pipe 21 is located on one side of the tower body 1, and the first outlet pipe 22 and the second outlet pipe 23 are located on the other side of the tower body 1. The liquid medium enters the coil 2 from the first inlet pipe 21 and is discharged from the first outlet pipe 22 and the second outlet pipe 23. The first outlet pipe 22 is connected to the tail end of the coil 2, and the second outlet pipe 23 is connected to the middle section of the coil 2. The path length of the liquid flowing out of the first outlet pipe 22 through the coil 2 is A, and the path length of the liquid flowing out of the second outlet pipe 23 through the coil 2 is B, where B ≤ 0.8A. In this embodiment, B = 0.5A. Therefore, the liquid flowing out of the second outlet pipe 23 only undergoes heat exchange through half the length of the coil 2. The heat exchange path is short, so the temperature drop of the liquid medium is less than that of the heat exchange medium flowing out of the first outlet pipe 22, which goes through the entire heat exchange path.

[0024] like Figure 1 and Figure 2As shown, both the first outlet pipe 22 and the second outlet pipe 23 are connected to the mixing tank 5. The mixing tank 5 contains multiple baffles 52, and a main outlet pipe 51 is connected to it. The liquid medium flowing from the first outlet pipe 22 and the second outlet pipe 23 is mixed in the mixing tank 5 and then discharged from the main outlet pipe 51. The multiple baffles 52 create turbulence in the liquid medium, improving the mixing effect. A first opening regulating valve 61 is installed on the first outlet pipe 22 to regulate its opening. A second opening regulating valve 62 is installed on the second outlet pipe 23 to regulate its opening. A third opening regulating valve 63 is installed on the main outlet pipe 51 to regulate its opening. A third temperature sensor 64 is installed on the main outlet pipe 51. A first temperature sensor 65 is installed on the first outlet pipe 22, and a second temperature sensor 66 is installed on the second outlet pipe 23. These three temperature sensors are used to measure the temperature of the liquid medium in their respective pipes. An inlet valve 68 is installed on the first inlet pipe 21 to control its opening. The first outlet pipe 22 is connected to the main outlet pipe 51 through the intermediate pipe 24. The intermediate pipe 24 can directly connect the first outlet pipe 22 and the main outlet pipe 51. An intermediate valve 67 is provided on the intermediate pipe 24, which can control the opening and closing of the intermediate pipe 24.

[0025] In this embodiment, when the cooling tower is used in winter, the temperature of the liquid medium entering through the first outlet pipe 22 is not high, for example, around 30°C. At this time, the temperature of the liquid medium discharged from the first outlet pipe 22 is monitored by the first temperature sensor 65. In some places, the discharge temperature needs to be around 10°C. If the discharge temperature is detected to be slightly lower, for example, the temperature of the liquid medium discharged from the first outlet pipe 22 is only 5°C, then the second opening regulating valve 62 is opened. For example, if the temperature of the liquid medium discharged from the second outlet pipe 23 is 15°C, the liquid medium discharged from the second outlet pipe 23 mixes with the liquid medium discharged from the first outlet pipe 22 in the mixing tank 5 and is discharged from the main outlet pipe 51. The temperature of the liquid medium discharged from the main outlet pipe 51 is monitored by the third temperature sensor 64. The opening of the first opening regulating valve 61 and the second opening regulating valve 62 is controlled according to the liquid medium discharge temperature of the main outlet pipe 51, so as to obtain a suitable discharge temperature at the main outlet pipe 51. The discharge medium temperature is controllable and has a large temperature range to meet different usage requirements. During summer use, the liquid medium entering through the first outlet pipe 22 is at a high temperature and requires heat exchange through the entire section of coil 2. At this time, the first opening regulating valve 61 and the second opening regulating valve 62 are closed, and the intermediate valve 67 is opened. The heat-exchanged liquid medium is discharged directly from the main outlet pipe 51 without passing through the mixing tank 5. Some factories require "7-degree water" (water at 7°C) as public cooling water year-round. In spring, summer, and autumn, "7-degree water" is supplied through a dedicated 7-degree water supply room using chillers and pumps. In winter, the 7-degree water supply room can be shut down, and "7-degree water" is supplied through a cooling tower to cool the public water supply, saving a significant amount of energy.

[0026] like Figure 1 and Figure 2 As shown, the top of the tower body 1 is also equipped with a first fan 8 corresponding to the air outlet 12. When the first fan 8 is working, it draws air outward to increase the air flow speed and improve the heat dissipation effect. In summer, it can increase the air flow speed. In winter, due to the low air temperature, the first fan 8 is not needed. The two non-powered air caps 4 can be used alone to meet the temperature requirements of the liquid medium flowing out of the main outlet pipe 51, while saving energy and reducing consumption. The tower body 1 is also equipped with a spray assembly for spraying liquid onto the heat dissipation fins 3. The spray assembly includes a spray pump 71, a delivery pipe 72, a spray pipe 73, a nozzle 74, and a suction pipe 75. A water storage tank 13 is provided at the bottom of the tower body 1. The spray pump 71 is located outside the tower body 1 and is connected to the water storage tank 13 through the suction pipe 75 to pump water out of the water storage tank 13. The delivery pipe 72 is connected to the spray pump 71 and is located in the middle of the tower body 1. The delivery pipe 72 extends upward to the area above the heat dissipation fins 3. The spray pipe 74 and the delivery pipe 75 are connected to the spray pump 71. 2. The top is connected to multiple spray pipes 73, which are arranged in an array. Spray nozzles 74 are installed on the spray pipes 73. The water sprayed from the spray nozzles 74 falls on the coil 2 and the heat dissipation fins 3. It works with the upward air to improve the heat exchange effect with the liquid medium in the coil 2 by utilizing the principle of evaporative heat absorption, thereby reducing the temperature of the liquid medium in the coil 2. In summer, since the heat dissipation effect of air alone is not good, the spray assembly forms a mist, which has a good effect on reducing the temperature of the liquid medium in the coil 2. In winter, the spray assembly can be left unused, and the spray pump 71 does not work, thus saving energy and reducing consumption.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cooling tower for providing cooling water supply in all four seasons, characterized in that, The device includes a tower body (1), a coil (2) installed inside the tower body (1), heat dissipation fins (3) connected to the coil (2), and a non-powered wind cap (4) installed on the tower body (1). The tower body (1) is provided with an air inlet (11) and an air outlet (12). The coil (2) is connected to a first inlet pipe (21), a first outlet pipe (22), and a second outlet pipe (23). The path length of the liquid flowing out of the first outlet pipe (22) through the coil (2) is A, and the path length of the liquid flowing out of the second outlet pipe (23) through the coil (2) is B, where B≤0.8A.

2. The cooling tower for all-season cooling water supply according to claim 1, characterized in that, The first outlet pipe (22) and the second outlet pipe (23) are both connected to the mixing tank (5), and the mixing tank (5) is connected to the main outlet pipe (51).

3. The cooling tower for all-season cooling water supply according to claim 2, characterized in that, The first outlet pipe (22) is provided with a first opening adjustment valve (61), the second outlet pipe (23) is provided with a second opening adjustment valve (62), and the main outlet pipe (51) is provided with a third opening adjustment valve (63) and a third temperature sensor (64).

4. The cooling tower for all-season cooling water supply according to claim 3, characterized in that, The first outlet pipe (22) is provided with a first temperature sensor (65), and the second outlet pipe (23) is provided with a second temperature sensor (66).

5. The cooling tower for all-season cooling water supply according to claim 2, characterized in that, The mixing tank (5) is equipped with a baffle plate (52).

6. The cooling tower for all-season cooling water supply according to claim 2, characterized in that, The first outlet pipe (22) is connected to the main outlet pipe (51) through an intermediate pipe (24), and an intermediate valve (67) is provided on the intermediate pipe (24).

7. The cooling tower for all-season cooling water supply according to claim 1, characterized in that, The tower body (1) is also provided with a spray assembly for spraying liquid onto the heat dissipation fins (3). The spray assembly includes a spray pump (71), a delivery pipe (72) connected to the spray pump (71), a spray pipe (73) connected to the delivery pipe (72), and a nozzle (74) provided on the spray pipe (73). A water storage tank (13) is provided at the bottom of the tower body (1). The spray pump (71) is connected to the water storage tank (13) through a suction pipe (75).

8. The cooling tower for all-season cooling water supply according to claim 1, characterized in that, The air outlet (12) is located at the top of the tower body (1), and the top of the tower body (1) is also provided with a first fan (8) corresponding to the air outlet (12).

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