Water-saving cooling tower

Abstract

The utility model provides a water-saving cooling tower, and belongs to the technical field of cooling towers. Comprising a tower body, an exhaust device arranged at the top of the tower body, a water tank arranged at the bottom of the tower body, an air inlet formed in the side wall of the tower body, a cooling tower filler layer arranged above the air inlet in the tower body, a drain pipe arranged above the cooling tower filler layer and used for discharging hot water, and a first condensing device arranged on the tower body and used for reducing the temperature of the hot water in the drain pipe. And a second condensing device is also arranged above the water outlet of the drain pipe in the tower body. The water-saving cooling tower not only can play a certain fog dispersal role to improve the slippery condition of a road surface, but also has the effect of saving water resources.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a water-saving cooling tower. Background Art

[0002] Cooling towers are commonly used in air conditioning cooling systems, industrial water cooling and other fields. Their function is to exchange heat between the cooling water carrying waste heat and the air inside the tower. After the heat exchange, the air will continue to rise carrying a large amount of moisture and be discharged to the outside of the tower through the exhaust device. The cooling water is discharged into the water pool at the bottom after heat exchange with the air.

[0003] However, in winter, hot air carrying a lot of moisture is prone to produce fog when it encounters cold air outside the cooling tower. This will not only make the road slippery, but also cause the loss of some cooling water, resulting in a waste of resources. Utility Model Content

[0004] In view of the above problems, the utility model provides a water-saving cooling tower.

[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0006] Provided is a water-saving cooling tower, comprising a tower body, an exhaust device is arranged on the top of the tower body, a water tank is arranged at the bottom of the tower body, an air inlet is arranged on the side wall of the tower body, a cooling tower packing layer is arranged above the air inlet in the tower body, a drain pipe for discharging hot water is arranged above the cooling tower packing layer, a first condensing device for reducing the temperature of hot water in the drain pipe is arranged on the tower body, and a second condensing device is also arranged above the water outlet of the drain pipe in the tower body.

[0007] Furthermore, the first condensing device includes a refrigeration box, which is arranged on the outer wall of the tower body. The drain pipe passes through the refrigeration box and is bent inside the refrigeration box to form a coil. A plurality of first heat sinks are arranged on the side of the refrigeration box away from the tower body. A first vent connected to the interior of the refrigeration box is opened on one side of the tower body. A second vent is opened at the bottom of the refrigeration box, and the first vent is located above the second condensing device.

[0008] Furthermore, the second condensing device includes a plurality of parallel heat dissipation tubes, which horizontally pass through the side wall of the tower body and are located above the water outlet of the drain pipe. The portion of the heat dissipation tube located inside the tower body has a plurality of second heat dissipation fins plugged into its outer wall, and one end of the plurality of heat dissipation tubes is connected to a ventilation device.

[0009] Furthermore, the portion of the drainage pipe located inside the tower body is composed of a plurality of parallel branch pipes, and a plurality of nozzles for spraying hot water to the cooling tower packing layer below are evenly spaced on the outer wall of the branch pipe along its own axial direction.

[0010] Furthermore, the second heat sinks are bent and extended in a vertical direction, and the second heat sinks on the side walls of two adjacent heat sinks that are close to each other are arranged in a staggered manner.

[0011] Furthermore, the exhaust device includes an exhaust fan and a driving motor. An air outlet is provided at the top of the tower body, the exhaust fan is arranged at the air outlet, and the driving motor is arranged at the top of the tower body and is transmission-connected to the exhaust fan.

[0012] Furthermore, a protective cover is provided on the top of the tower body above the air outlet.

[0013] The beneficial effects of the utility model are as follows: the hot water in the drain pipe can be cooled and reduced in temperature by the first condensing device, and then the cooled hot water is discharged from the drain pipe to the packing layer of the cooling tower; the cold air from the outside can be drawn into the tower body through the exhaust device on the top of the tower body, so that it can exchange heat with the hot water when passing through the packing layer of the cooling tower, and become humid hot air carrying a large amount of moisture; then, the humid hot air rises and passes through the second condensing device, and can be condensed and cooled again, so that a large amount of moisture in the humid hot air can condense into water droplets and flow back downward, and only a small amount of moisture can be discharged together with the hot air, which can not only play a certain defogging role to improve the slippery condition of the road surface, but also has the effect of saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a water-saving cooling tower according to an embodiment of the present application.

[0015] Figure 2 This is a schematic diagram of the internal structure of a water-saving cooling tower according to an embodiment of the present application.

[0016] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A.

[0017] Among them, 1. tower body; 11. air inlet; 2. exhaust device; 21. drive motor; 3. water tank; 4. cooling tower packing layer; 5. drain pipe; 51. coil; 52. branch pipe; 6. first condensing device; 61. refrigeration box; 611. first vent; 612. second vent; 62. first heat sink; 7. second condensing device; 71. heat pipe; 72. second heat sink; 73. ventilation device; 8. protective cover. DETAILED DESCRIPTION

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] The present application embodiment discloses a water-saving cooling tower, referring to Figure 1 , Figure 2 and Figure 3, including a tower body 1, an exhaust device 2 is installed on the top of the tower body 1, and a water tank 3 is installed at the bottom of the tower body 1. An air inlet 11 is opened on the side wall of the tower body 1, a cooling tower packing layer 4 is arranged above the air inlet 11 in the tower body 1, and a drain pipe 5 for discharging hot water is installed above the cooling tower packing layer 4. A first condensing device 6 for reducing the temperature of hot water in the drain pipe 5 is installed on the tower body 1, and a second condensing device 7 is also installed above the water outlet of the drain pipe 5 in the tower body 1.

[0020] In the embodiment of the present application, the cooling tower packing layer 4 can be made of PVC honeycomb packing. The hot water in the drain pipe 5 can be cooled and cooled by the first condensing device 6, and then the cooled hot water is discharged from the drain pipe 5 to the cooling tower packing layer 4; the exhaust device 2 at the top of the tower body 1 can draw cold air from the outside into the tower body 1, so that it can exchange heat with the hot water when passing through the cooling tower packing layer 4, and become hot and humid air carrying a large amount of water; then, the hot and humid air rises and passes through the second condensing device 7, and can be condensed and cooled again, so that a large amount of water in the hot and humid air can condense into water droplets and flow back downward, and only a small amount of water can be discharged with the hot air. The cooling tower of the present application can not only play a certain role in defogging to improve the slippery condition of the road surface, but also has the effect of saving water resources.

[0021] Specifically, the first condensing device 6 includes a refrigerating box 61, which is bolted to the outer wall of the tower body 1. The drain pipe 5 passes through the refrigerating box 61 and is bent inside the refrigerating box 61 to form a coil 51. A plurality of first heat sinks 62 are bolted to the side of the refrigerating box 61 away from the tower body 1. A first vent 611 communicating with the inside of the refrigerating box 61 is provided on one side of the tower body 1. A second vent 612 is provided at the bottom of the refrigerating box 61. The first vent 611 is located above the second condensing device 7.

[0022] In the embodiment of the present application, when the exhaust device 2 draws outside air into the tower, part of the outside air can flow to the first vent 611 through the second vent 612, and take away the heat of the hot water in part of the coil 51, and then mix with the hot air carrying a small amount of moisture in the tower body 1 above the second condensing device 7, and exhaust together. The hot air inside the tower body 1 that passes through the second condensing device 7 still carries a small amount of moisture, while the air that passes through the refrigeration box 61 is dry hot air. The mixture of the two can further dilute the moisture concentration in the air, thereby increasing the defogging effect of the cooling tower.

[0023] Specifically, the second condensing device 7 includes a plurality of parallel heat dissipation tubes 71, which horizontally pass through the side wall of the tower body 1 and are located above the water outlet of the drain pipe 5. The portion of the heat dissipation tube 71 located inside the tower body 1 has a plurality of second heat dissipation fins 72 inserted on its outer wall, and one end of the plurality of heat dissipation tubes 71 is connected to a ventilation device 73.

[0024] In the embodiment of the present application, the ventilation device 73 may adopt a heat dissipation fan, and the heat dissipation fan may accelerate the air flow rate in the heat dissipation pipe 71, thereby improving the heat dissipation effect of the second heat sink 72.

[0025] Furthermore, the portion of the drain pipe 5 located inside the tower body 1 is composed of a plurality of parallel branch pipes 52, and a plurality of nozzles for spraying hot water to the cooling tower packing layer 4 below are evenly spaced along the axial direction on the outer wall of the branch pipe 52. In this way, the water outlet area of ​​the drain pipe 5 can be increased, so that the hot water can be evenly sprayed to the cooling tower packing layer 4 below, so as to fully exchange heat with the air.

[0026] Furthermore, the second fins 72 are bent and extended in the vertical direction, and the second fins 72 on the side walls close to each other on two adjacent heat pipes 71 are staggered. In this way, the heat dissipation area of ​​the second fins 72 can be increased, and the condensation effect on the humid hot air can be further improved.

[0027] Specifically, the exhaust device 2 includes an exhaust fan and a drive motor 21. An air outlet is provided at the top of the tower body 1. The exhaust fan is rotatably arranged at the air outlet. The drive motor 21 is installed at the top of the tower body 1 and is transmission-connected to the exhaust fan. The exhaust fan can be driven to rotate by starting the drive motor 21.

[0028] Since the cooling tower is usually installed on the roof and exposed to the outdoors, in order to prevent some foreign matter from entering the air outlet, a protective cover 8 is installed on the top of the tower body 1 above the air outlet. When installing the protective cover 8, the staff must consider its height from the air outlet and must not affect the air discharge in the tower body 1.

[0029] The implementation principle of a water-saving cooling tower in the embodiment of the present application is as follows: the hot water in the drain pipe 5 can be cooled and lowered through the first condensing device 6, and then the cooled hot water is discharged from the drain pipe 5 to the cooling tower packing layer 4; the exhaust device 2 at the top of the tower body 1 can draw cold air from the outside into the tower body 1, so that it exchanges heat with the hot water when passing through the cooling tower packing layer 4, and becomes hot and humid air carrying a large amount of water; then, the hot and humid air rises and passes through the second condensing device 7, and can be condensed and cooled again, so that a large amount of water in the hot and humid air can condense into water droplets and flow back downward, and only a small amount of water can be discharged with the hot air. It can not only play a certain role in defogging to improve the slippery condition of the road surface, but also has the effect of saving water resources.

[0030] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A water-saving cooling tower, characterized in that: The tower body (1) comprises a tower body (1), wherein an exhaust device (2) is provided at the top of the tower body (1), a water tank (3) is provided at the bottom of the tower body (1), an air inlet (11) is provided on the side wall of the tower body (1), a cooling tower packing layer (4) is provided above the air inlet (11) in the tower body (1), a drain pipe (5) for discharging hot water is provided above the cooling tower packing layer (4), a first condensing device (6) for reducing the temperature of hot water in the drain pipe (5) is provided on the tower body (1), and a second condensing device (7) is also provided above the water outlet of the drain pipe (5) in the tower body (1).

2. A water-saving cooling tower according to claim 1, characterized in that: The first condensing device (6) comprises a refrigerating box (61), the refrigerating box (61) being arranged on the outer wall of the tower body (1), the drain pipe (5) passing through the refrigerating box (61) and being bent inside the refrigerating box (61) to form a coil (51), a plurality of first heat sinks (62) being arranged on a side of the refrigerating box (61) away from the tower body (1), a first ventilation opening (611) communicating with the interior of the refrigerating box (61) being provided on one side of the tower body (1), a second ventilation opening (612) being provided at the bottom of the refrigerating box (61), and the first ventilation opening (611) being located above the second condensing device (7).

3. A water-saving cooling tower according to claim 2, characterized in that: The second condensing device (7) comprises a plurality of parallel heat dissipation pipes (71), the plurality of heat dissipation pipes (71) horizontally passing through the side wall of the tower body (1) and being located above the water outlet of the drain pipe (5), the portion of the heat dissipation pipe (71) located inside the tower body (1) having a plurality of second heat dissipation fins (72) inserted on its outer wall, and one end of the plurality of heat dissipation pipes (71) being connected to a ventilation device (73).

4. A water-saving cooling tower according to claim 3, characterized in that: The portion of the drainage pipe (5) located inside the tower body (1) is composed of a plurality of parallel branch pipes (52), and a plurality of nozzles for spraying hot water onto the cooling tower packing layer (4) below are evenly spaced on the outer wall of the branch pipe (52) along its own axial direction.

5. A water-saving cooling tower according to claim 3, characterized in that: The second heat sinks (72) are bent and extended in a vertical direction, and the second heat sinks (72) on the side walls of two adjacent heat sinks (71) that are close to each other are arranged in a staggered manner.

6. A water-saving cooling tower according to claim 2, characterized in that: The exhaust device (2) comprises an exhaust fan and a drive motor (21); an air outlet is provided at the top of the tower body (1); the exhaust fan is arranged at the air outlet; and the drive motor (21) is arranged at the top of the tower body (1) and is transmission-connected to the exhaust fan.

7. A water-saving cooling tower according to claim 6, characterized in that: A protective cover (8) is provided on the top of the tower body (1) above the air outlet.

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