Water-saving fog dispersal device for cooling tower

Abstract

The utility model relates to the technical field of countercurrent cooling tower accessory devices, in particular to a water-saving fog dispersal device for a cooling tower, which improves the water resource recycling effect, realizes the fog dispersal effect at the same time, is convenient to meet the use requirements in different seasons and different arid regions, and improves the practicability. Comprising a tower body and an exhaust hood, the lower part of the tower body is communicated with an air inlet, and the exhaust hood is communicated with the top end of the tower body; the device further comprises a fog dispersal system, a filler layer, a drainage pipe and a water collector, the filler layer is installed on the inner side wall of the exhaust hood, the drainage pipe is installed in the exhaust hood, the output end of the drainage pipe is communicated with the interior of the exhaust hood, the drainage pipe is arranged above the filler layer, and the water collector is installed on the inner side wall of the exhaust hood and arranged above the drainage pipe. The fog dispersal system is arranged in the exhaust hood and above the water collector, and the fog dispersal system is used for eliminating water fog.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for countercurrent cooling towers, in particular to a water-saving and fog-eliminating device for cooling towers. Background Art

[0002] At present, there is a phenomenon of a large amount of water vapor evaporation at the air outlet of industrial cooling towers, resulting in waste of resources, and in severe cases of evaporation, it will even affect and pollute the surrounding environment. Most of the circulating water in industrial cooling towers is industrial water, which may contain some toxic and harmful substances. If it is discharged into the air along with water vapor, it will endanger the atmospheric environment and human health. In view of the above situation, the birth of a water-saving and fog-eliminating technology for cooling towers can alleviate the above problems. After years of tests and actual good operation, this technology is mature and stable enough to prove. While ensuring the cooling effect of the cooling tower, this technology can also achieve the purpose of saving water resources and protecting the environment. This technology can bring more significant effects to areas with scarce water sources and cold weather. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a water-saving and fog-eliminating device for cooling towers, which improves the recycling effect of water resources, realizes the fog-eliminating effect at the same time, is convenient to meet the use in different seasons and different arid regions, and improves the practicability.

[0004] A water-saving and fog-eliminating device for a cooling tower of the utility model comprises a tower body and an exhaust hood. An air inlet is communicated and arranged at the lower part of the tower body, and the exhaust hood is communicated and arranged at the top end of the tower body; it further comprises a fog-eliminating system, a packing layer, a drain pipe and a water collector. The packing layer is installed on the inner side wall of the exhaust hood, the drain pipe is installed inside the exhaust hood, the output end of the drain pipe is communicated with the inside of the exhaust hood, and the drain pipe is arranged above the packing layer. The water collector is installed on the inner side wall of the exhaust hood and is arranged above the drain pipe. The fog-eliminating system is arranged inside the exhaust hood and is arranged above the water collector. The fog-eliminating system is used to eliminate water mist; air enters the tower body through the air inlet at the lower part of the tower body, and then the air flows upward in the tower body and sequentially passes through the packing layer, the drain pipe, the water collector and the fog-eliminating system and is discharged through the exhaust hood. The hot water is sprayed outwards through the drain pipe, and the sprayed hot water flows downward through the water collector. By contacting the air and the hot water in the water collector, the hot water evaporates and dissipates heat, achieving the effect of reducing the water temperature. At the same time, the air will also carry away part of the water vapor to the fog-eliminating system, and the water vapor is cooled and condensed into water by the fog-eliminating system. After the water accumulates, it will fall to the water collector under the action of gravity to achieve the purpose of recycling, and at the same time, the fog-eliminating effect is realized, and the practicability is improved.

[0005] Preferably, the fog elimination system includes multiple groups of support columns, multiple groups of heat exchange boxes, and an exhaust air control device. The multiple groups of support columns are all installed on the inner sidewall of the tower body. The bottom ends of the multiple groups of heat exchange boxes are respectively connected to the top ends of the multiple groups of support columns, and the multiple groups of heat exchange boxes are arranged at intervals. The bottom ends of the multiple groups of heat exchange boxes communicate with the inside of the tower body. The exhaust air control device is connected and arranged between the multiple groups of heat exchange boxes, and is used to control the entry of dry cold air between the multiple groups of heat exchange boxes. The humid hot air evaporated from the hot water enters the interiors of the multiple groups of heat exchange boxes. At this time, the exhaust air control device controls the entry of dry cold air between the outer sidewalls of the multiple groups of heat exchange boxes. The multiple groups of heat exchange boxes are cooled by the dry cold air, so that the multiple groups of heat exchange boxes cool the humid hot air inside through heat conduction. The water condensed in the heat exchange boxes will adsorb onto the inner sidewalls of the heat exchange boxes to form a water film. After the water film accumulates, it will fall into the tower under the action of gravity to achieve the purpose of recycling. By arranging the multiple groups of heat exchange boxes at intervals, the materials can be saved maximally, and at the same time, a good fog elimination effect can be achieved.

[0006] Preferably, the exhaust air control device includes multiple groups of upper air doors, multiple groups of lower air doors, and multiple groups of louvers. The multiple groups of upper air doors are respectively connected and arranged between the top ends of the multiple groups of heat exchange boxes. The multiple groups of lower air doors are all installed on the outer sidewalls of the support columns, and the multiple groups of lower air doors are respectively arranged between the bottom ends of the multiple groups of heat exchange boxes. The multiple groups of louvers are all connected and arranged on the outer sidewall of the tower body, and the multiple groups of louvers respectively communicate with the multiple groups of heat exchange boxes. When the evaporated humid hot air enters the interiors of the multiple groups of heat exchange boxes, the dry cold air is transported between the multiple groups of heat exchange boxes through the louvers. At this time, the multiple groups of upper air doors and the multiple groups of lower air doors are all in a closed state, so that the dry cold air between the multiple groups of heat exchange boxes exchanges heat with the humid hot air in the multiple groups of heat exchange boxes, achieving the effects of fog elimination and cooling of the humid hot air in the multiple groups of heat exchange boxes. When fog elimination is not required, by closing the multiple groups of louvers and opening the multiple groups of upper air doors and the multiple groups of lower air doors, the tower body is restored to the basic cooling state. In winter, the fog elimination mode can be turned on to eliminate the generation of water mist on the tower body. In other seasons, it can be selected to be closed or opened according to the actual situation. In arid and water-scarce areas, the fog elimination mode can be turned on for a long time to achieve the purpose of water conservation.

[0007] Preferably, the heat exchange box is in the shape of a cube, which improves the processing convenience and installation convenience of the multiple groups of heat exchange boxes and reduces the equipment cost.

[0008] Preferably, the direction of the water flow in the water collector is 180° to the direction of the air, which improves the full contact effect between water and air and the hot water cooling effect.

[0009] Preferably, the multiple groups of support columns are made of concrete material, which reduces the production cost of the equipment and improves the corrosion resistance effect.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: Air enters the interior of the tower body through the air inlet at the lower part of the tower body. Then, the air flows upward in the tower body and successively passes through the packing layer, the drain pipe, the water collector, and the demisting system, and is discharged through the exhaust hood. The hot water is sprayed outwards through the drain pipe, and the sprayed hot water flows downward through the water collector. By contacting the air with the hot water in the water collector, the hot water evaporates and dissipates heat, achieving the effect of reducing the water temperature. At the same time, the air will also carry away part of the water vapor to the demisting system, and the water vapor is cooled and condensed into water through the demisting system. After the water accumulates, it will fall to the water collector under the action of gravity to achieve the purpose of recycling, and at the same time, the demisting effect is achieved, improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is an isometric structural schematic diagram of the present utility model;

[0012] Figure 2 is an isometric structural schematic diagram of the connection between the tower body and the packing layer, etc.;

[0013] Figure 3 is an isometric partial structural schematic diagram of the connection between the support column and the heat exchange box, etc.;

[0014] Figure 4 is an isometric partial structural schematic diagram of the connection between the support column and the lower air damper, etc.;

[0015] Figure 5 is an isometric partial structural schematic diagram of the connection between the upper air damper and the heat exchange box, etc.

[0016] Reference numerals in the drawings: 1. Tower body; 2. Exhaust hood; 3. Packing layer; 4. Drain pipe; 5. Water collector; 6. Support column; 7. Heat exchange box; 8. Exhaust air control device; 9. Upper air damper; 10. Lower air damper; 11. Louvers. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0018] Embodiment 1

[0019] As Figures 1 to 5As shown in the figure, a water-saving and fog-eliminating device for a cooling tower of the present utility model includes a tower body 1 and an exhaust hood 2. An air inlet is communicatively provided at the lower part of the tower body 1, and the exhaust hood 2 is communicatively provided at the top end of the tower body 1. It further includes a fog-eliminating system, a packing layer 3, a drain pipe 4 and a water collector 5. The packing layer 3 is installed on the inner side wall of the exhaust hood 2, the drain pipe 4 is installed inside the exhaust hood 2, the output end of the drain pipe 4 communicates with the inside of the exhaust hood 2, and the drain pipe 4 is arranged above the packing layer 3. The water collector 5 is installed on the inner side wall of the exhaust hood 2 and is arranged above the drain pipe 4. The fog-eliminating system is arranged inside the exhaust hood 2 and is arranged above the water collector 5. The fog-eliminating system is used to eliminate water mist.

[0020] As Figure 2 shown, the fog-eliminating system includes multiple groups of support columns 6, multiple groups of heat exchange boxes 7 and an exhaust air control device 8. Multiple groups of support columns 6 are all installed on the inner side wall of the tower body 1. The bottom ends of multiple groups of heat exchange boxes 7 are respectively connected to the top ends of multiple groups of support columns 6, and multiple groups of heat exchange boxes 7 are arranged at intervals. The bottom ends of multiple groups of heat exchange boxes 7 communicate with the inside of the tower body 1. The exhaust air control device 8 is communicatively provided between multiple groups of heat exchange boxes 7. The exhaust air control device 8 is used to control the entry of dry cold air between multiple groups of heat exchange boxes 7.

[0021] In this embodiment, air enters the inside of the tower body 1 through the air inlet at the lower part of the tower body 1. Then the air flows upward in the tower body 1 and sequentially passes through the packing layer 3, the drain pipe 4, the water collector 5 and the fog-eliminating system and is discharged through the exhaust hood 2. Hot water is sprayed outwards through the drain pipe 4. The sprayed hot water flows downward through the water collector 5. By contacting the air and the hot water in the water collector 5, the hot water evaporates and dissipates heat, achieving the effect of reducing the water temperature. At the same time, the air will also carry away part of the water vapor to the fog-eliminating system. The water vapor is cooled and condensed into water by the fog-eliminating system. After the water accumulates, it will fall to the water collector 5 under the action of gravity to achieve the purpose of recycling, and at the same time achieve the fog-eliminating effect and improve the practicability.

[0022] Embodiment 2

[0023] On the basis of Embodiment 1, as Figure 1 and Figure 3 shown, a water-saving and fog-eliminating device for a cooling tower of the present utility model, the exhaust air control device 8 includes multiple groups of upper air doors 9, multiple groups of lower air doors 10 and multiple groups of louvers 11. Multiple groups of upper air doors 9 are respectively communicatively provided between the top ends of multiple groups of heat exchange boxes 7. Multiple groups of lower air doors 10 are all installed on the outer side wall of the support columns 6, and multiple groups of lower air doors 10 are respectively arranged between the bottom ends of multiple groups of heat exchange boxes 7. Multiple groups of louvers 11 are respectively communicatively provided on the outer side wall of the tower body 1, and multiple groups of louvers 11 respectively communicate with multiple groups of heat exchange boxes 7.

[0024] As Figure 3 shown, the heat exchange box 7 is in the shape of a cube.

[0025] AsFigure 2 As shown, the direction of the water flow in the water collector 5 is 180° to the direction of the air;

[0026] As Figure 3 shown, the multiple groups of support columns 6 are made of concrete;

[0027] In this embodiment, the hot and humid air evaporated from the hot water enters the interiors of the multiple groups of heat exchange boxes 7 upwards. At this time, the exhaust air control device 8 controls the dry and cold air to enter between the outer sidewalls of the multiple groups of heat exchange boxes 7. The multiple groups of heat exchange boxes 7 are cooled down by the dry and cold air, and the hot and humid air inside the multiple groups of heat exchange boxes 7 is cooled through heat conduction. The water condensed in the heat exchange boxes 7 will adsorb onto the inner sidewalls of the heat exchange boxes 7 to form a water film. After the water film accumulates, it will fall into the tower under the action of gravity to achieve the purpose of recycling. By arranging the multiple groups of heat exchange boxes 7 at intervals, the material can be saved maximally, and at the same time, a good demisting effect can be achieved. When the evaporated hot and humid air enters the interiors of the multiple groups of heat exchange boxes 7, the dry and cold air is conveyed between the multiple groups of heat exchange boxes 7 through the louvers 11. At this time, the multiple groups of upper air valves 9 and the multiple groups of lower air valves 10 are both in the closed state, so that the dry and cold air between the multiple groups of heat exchange boxes 7 exchanges heat with the hot and humid air inside the multiple groups of heat exchange boxes 7, achieving the effects of demisting and cooling down the hot and humid air inside the multiple groups of heat exchange boxes 7. When demisting is not required, by closing the multiple groups of louvers 11 and opening the multiple groups of upper air valves 9 and the multiple groups of lower air valves 10, the tower body 1 is restored to the basic cooling state. In winter, the demisting mode can be turned on to eliminate the generation of water mist on the tower body 1. In other seasons, it can be selected to be turned off or on according to the actual situation. In arid and water-scarce areas, the demisting mode can be turned on for a long time to achieve the purpose of water conservation.

[0028] In the working process of a cooling tower water-saving and demisting device of the present utility model, air enters the interior of the tower body 1 through the lower air inlet of the tower body 1, and then the air flows upwards in the tower body 1 and sequentially passes through the packing layer 3, the drain pipe 4, the water collector 5 and the demisting system and is discharged through the exhaust hood 2. The hot water is sprayed outwards through the drain pipe 4, and the sprayed hot water flows downwards through the water collector 5. By contacting the air with the hot water in the water collector 5, the hot water evaporates and dissipates heat, achieving the effect of reducing the water temperature. At the same time, the air will also carry away part of the water vapor to the demisting system, and the water vapor is cooled down by the demisting system to condense into water. After the water accumulates, it will fall into the water collector 5 under the action of gravity to achieve the purpose of recycling, and at the same time, the demisting effect is achieved.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A cooling tower water-saving and mist-eliminating device, comprising a tower body (1) and an exhaust hood (2), wherein the lower part of the tower body (1) is connected to an air inlet, and the exhaust hood (2) is connected to the top of the tower body (1); characterized in that: The utility model also comprises a demisting system, a packing layer (3), a drain pipe (4) and a water collector (5), wherein the packing layer (3) is mounted on the inner wall of the exhaust hood (2), the drain pipe (4) is mounted inside the exhaust hood (2), the output end of the drain pipe (4) is communicated with the inside of the exhaust hood (2), and the drain pipe (4) is arranged above the packing layer (3), the water collector (5) is mounted on the inner wall of the exhaust hood (2) and arranged above the drain pipe (4), the demisting system is arranged inside the exhaust hood (2), and the demisting system is arranged above the water collector (5), and the demisting system is used to eliminate water mist.

2. A cooling tower water-saving and mist-eliminating device as claimed in claim 1, characterized in that: The demisting system comprises a plurality of groups of support columns (6), a plurality of groups of heat exchange boxes (7) and an exhaust control device (8); the plurality of groups of support columns (6) are all mounted on the inner wall of the tower body (1); the bottom ends of the plurality of groups of heat exchange boxes (7) are all connected to the top ends of the plurality of groups of support columns (6); the plurality of groups of heat exchange boxes (7) are arranged at intervals; the bottom ends of the plurality of groups of heat exchange boxes (7) are all connected to the inside of the tower body (1); the exhaust control device (8) is arranged in communication between the plurality of groups of heat exchange boxes (7); and the exhaust control device (8) is used to control dry cold air to enter between the plurality of groups of heat exchange boxes (7).

3. A cooling tower water-saving and mist-eliminating device as claimed in claim 2, characterized in that: The exhaust control device (8) comprises a plurality of groups of upper air doors (9), a plurality of groups of lower air doors (10) and a plurality of groups of shutters (11); the plurality of groups of upper air doors (9) are respectively arranged in communication between the top ends of the plurality of groups of heat exchange boxes (7); the plurality of groups of lower air doors (10) are all installed on the outer side walls of the support columns (6); the plurality of groups of lower air doors (10) are respectively arranged between the bottom ends of the plurality of groups of heat exchange boxes (7); the plurality of groups of shutters (11) are all arranged in communication on the outer side walls of the tower body (1); and the plurality of groups of shutters (11) are respectively communicated with the plurality of groups of heat exchange boxes (7).

4. A cooling tower water-saving and mist-eliminating device as claimed in claim 2, characterized in that: The heat exchange box (7) is in the shape of a cube.

5. A cooling tower water-saving and mist-eliminating device as claimed in claim 1, characterized in that: The direction of the water flow in the water collector (5) is 180° to the direction of the air.

6. A cooling tower water-saving and mist-eliminating device as claimed in claim 2, characterized in that: The multiple groups of support columns (6) are made of concrete material.

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