TWI804781B - Application of Adjustable Water Distribution System for Cooling Tower Fog Elimination and Energy Saving - Google Patents

Abstract

An application of an adjustable water distribution system for cooling tower defogging and energy saving, mainly including: a first water distribution pipeline, a first water distribution pipeline nozzle, a second water distribution pipeline, a second water distribution pipeline nozzle, the The second water distribution pipeline is arranged in layers to form a height difference, so that the nozzles of the two water distribution pipelines are arranged in a staggered interval between the upper and lower layers, which can correspond to different pressures and spraying ranges. The two circulating water volumes correspond to opening or closing a control valve respectively, providing the first water distribution pipeline and the second water distribution pipeline to spray water at the same time or choose one of them, so the water distribution of the whole pipeline can be effectively adjusted. When the amount of water is reduced, it can also ensure the uniformity of sprinkling of the entire cooling water tower, so as to achieve the best heat dissipation performance of the cooling water tower, and effectively reduce the concentration of discharged water mist to achieve the effect of defogging.

Description

Application of Adjustable Water Distribution System for Cooling Tower Fog Elimination and Energy Saving

The invention relates to the technical field of cooling tower water distribution systems, in particular to the application of an adjustable water distribution system for cooling tower defogging and energy saving.

The cooling water tower uses evaporative cooling to cool hot water into cold water, and is generally widely used in air-conditioning circulating water systems and industrial circulating water systems. It is mainly to send the hot water generated by cooling to the upper end of the cooling water tower, and flow down after forming a larger area through nozzles or other water distribution methods. Then use the fan device to force the cold air outside the tower into the cooling water tower, then the hot water flowing down and the cold air entering the cooling water tower will exchange heat at the cooling device, so that the water temperature will be reduced to cold water, and the heated gas Then flow out of the water tower and distribute in the air.

The design of the water distribution system of a general cooling water tower is usually aimed at the maximum design water volume, including main pipes, branch pipes and nozzles. When the circulating water volume is at the design value, ensure that the spray water of the cooling water tower can be evenly distributed on the filler. However, most of the conventional cooling water towers are standard single water distribution systems. The overall design has been perfected for a long time, and it is impossible to increase or decrease the water distribution automatically in response to changes in the circulating water volume of the cooling water tower. Once the circulating water volume is reduced, the cooling efficiency of the equipment will be significantly reduced. .

In view of this, the main purpose of the present invention is to provide an application of an adjustable water distribution system for cooling tower defogging and energy saving, which mainly includes: a first water distribution pipeline, a first water distribution pipeline nozzle, a second water distribution pipeline Water pipeline, a second water distribution pipeline nozzle, a control valve, and a circulating water supply system, wherein the first water distribution pipeline has a main pipe whose front end is a water inlet and the rear end is closed, and the two sides of the main pipe are connected at intervals There are a plurality of branch pipes, each of which is provided with a plurality of sprinkler heads at intervals to form the nozzles of the first water distribution pipeline; the second water distribution pipeline also has a main pipe whose front and rear ends are closed, the A plurality of branch pipes are connected at intervals on both sides of the main pipe, and a plurality of sprinkler heads are arranged at intervals on each branch pipe to form the nozzles of the second water distribution pipe. The second water distribution pipe is layered with the first water distribution pipe. A height difference is formed, and a communication part is provided between the two main pipe front sections of the second water distribution pipeline and the first water distribution pipeline, so that the nozzles of the first and second water distribution pipelines are staggered at upper and lower intervals The configuration can correspond to different pressures and spraying ranges; the control valve is set on the main pipe of the first water distribution pipeline at a short distance behind the communication part, when the control valve is opened, the first water distribution pipeline and the second water distribution pipeline The second water distribution pipeline is fully connected, when the control valve is closed to block the rear section of the main pipe of the first water distribution pipeline, it is only connected to the second water distribution pipeline through the communication part, and; the circulating water supply system has A water supply pipeline is connected to the water inlet of the main pipe of the first water distribution pipeline through a cooling water pump. The circulating water supply system has a first circulating water volume and a second circulating water volume, wherein the first circulating water volume When the control valve is opened, the first water distribution pipeline and the second water distribution pipeline are fully opened and fully sprinkled, wherein the second cycle The water quantity corresponds to the closing of the control valve, and only one of the second water distribution pipelines is selected for half-open water sprinkling.

In a preferred implementation, the first water distribution pipeline is arranged on the upper floor, and the second water distribution pipeline is arranged on the lower floor, the two main pipes of the first and second water distribution pipelines are arranged up and down and arranged in a staggered manner, and the first , The plurality of branch pipes of the second water distribution pipeline are arranged staggered at intervals, but the actual situation is not limited to this.

In a preferred implementation, when the overall circulating water volume of the cooling water tower is normally sufficient, the first circulating water volume of the circulating water supply system is used to correspondingly open the control valve to provide the first water distribution pipeline and the second water distribution pipeline to be fully opened and fully opened at the same time. Sprinkle with water. When the overall circulating water volume of the cooling water tower drops to 60%, the second circulating water volume is used to close the control valve correspondingly, and only one of the second water distribution pipelines is selected to perform half-open water sprinkling, but the actual circulating water volume is Control is not limited to this.

Compared with the existing known technology, the application of an adjustable water distribution system for cooling tower defogging and energy saving in the present invention has the advantages that it can effectively adjust the water distribution of the overall pipeline, and when the circulating water volume is reduced, the entire cooling system can also be ensured. The sprinkling uniformity of the water tower to achieve the best heat dissipation performance of the cooling water tower. And through the uniform distribution of water to dissipate heat, the hot and humid air passing through the cooling fins is homogenized, effectively reducing the concentration of mist in the exhaust air, and achieving the effect of eliminating fog.

1: The first water distribution pipeline

10: The first water distribution pipeline nozzle

11: supervisor

110: water inlet

12: branch pipe

13: sprinkler head

2: The second water distribution pipeline

20: The second water distribution pipeline nozzle

201: Connectivity Department

202: S-shaped adapter

21: Supervisor

22: branch pipe

23: sprinkler head

3: Control valve

4: Circulating water supply system

40: Water supply pipeline

401: cooling water pump

41: The first circulating water volume

42: The second circulating water volume

Fig. 1 is a schematic configuration diagram of the system of the present invention.

Fig. 2 is a perspective view of the first and second water distribution pipelines of the present invention.

Fig. 3 is an application diagram in which the first and second water distribution pipelines of the present invention start water spraying at the same time.

Fig. 4 is an application diagram of the second water distribution pipeline of the present invention independently starting water spraying.

In order to facilitate the understanding of the content of the present invention and the effects that can be achieved, the specific embodiments are listed in conjunction with the drawings, and the details are as follows: Please refer to Figures 1 to 4, a cooling tower fog removal provided by the present invention The energy-saving adjustable water distribution system mainly includes a first water distribution pipeline 1, a first water distribution pipeline nozzle 10, a second water distribution pipeline 2, a second water distribution pipeline nozzle 20, a control valve 3, And a circulating water supply system 4, wherein; the first water distribution pipeline 1 has a main pipe 11, the two sides of the main pipe 11 are connected with a plurality of branch pipes 12 at intervals, and a plurality of sprinkler heads 13 are arranged at intervals on each branch pipe 12 , to form the nozzle 10 of the first water distribution pipeline; the second water distribution pipeline 2 also has a main pipe 21, and a plurality of branch pipes 22 are connected at intervals on both sides of the main pipe 21, and plural branch pipes 22 are arranged at intervals on each branch pipe 22. Spray head 23, to constitute the second water distribution pipeline sprinkler 20, the second water distribution pipeline 2 and the first water distribution pipeline 1 are layered to form a height difference, and between the second water distribution pipeline 2 and the first water distribution pipeline 1 A communication part 201 is provided between the two main pipes 11 and 21 of the first water distribution pipeline 1, so that the nozzles 10 and 20 of the first and second water distribution pipelines are alternately arranged in upper and lower layers, which can correspond to different pressures and pressures. Spraying range; the control valve 3 is set on the main pipe 11 of the first water distribution pipeline 1 at a short distance behind the communication part 201. When the control valve 3 is opened, the first water distribution pipeline 1 and the second water distribution pipeline 1 The water distribution pipeline 2 is completely connected. When the control valve 3 is closed to block the rear section of the main pipe 11 of the first water distribution pipeline 1, it is only connected to the second water distribution pipeline 2 through the communication part 201, and; The circulating water supply system 4 has a water supply pipeline 40 connected to the main pipe 11 of the first water distribution pipeline 1 through a cooling water pump 401. The circulating water supply system 4 has a first circulating water volume 41 and a second circulating water volume 42 to correspondingly open or close the control valve 3, so that the first water distribution pipeline 1 and the second water distribution pipeline 2 can perform water sprinkling at the same time or alternatively.

Preferred implementation, as shown in Figure 1 and Figure 2, wherein the first water distribution pipeline 1 is located on the upper floor, and the second water distribution pipeline 2 is located on the lower floor, the first water distribution pipeline 1, the second water distribution pipeline The two main pipes 11, 21 of the water pipeline 2 are arranged up and down in a staggered arrangement, and the plurality of branch pipes 12, 22 of the first water distribution pipeline 1 and the second water distribution pipeline 2 are arranged in a staggered interval, so that the upper and lower The first and second water distribution pipeline sprinklers 10, 20 formed by the plurality of sprinkler heads 13, 23 are arranged alternately in upper and lower layers.

In a preferred implementation, the control valve 3 is formed by an automatic control butterfly valve. The front end of the main pipe 11 of the first water distribution pipeline 1 is a water inlet 110, and the rear end is closed, and the sprinklers 13 of each branch pipe 12 are arranged downward; the main pipe 21 of the second water distribution pipeline 2 Both front and rear ends are closed, and an S-shaped adapter 202 is provided between each branch pipe 22 and the main pipe 21 , and the spray heads 23 of each branch pipe 22 are disposed downward.

In a preferred implementation, the cooling water pump 401 provided on the water supply pipeline 40 of the circulating water supply system 4 is a cooling water pump 401 controlled by frequency conversion.

In a preferred implementation, the plurality of sprinkler heads 13 on each branch pipe 12 of the first water distribution pipeline 1 is at least eight, and the plurality of sprinkler heads 23 on each branch pipe 22 of the second water distribution pipeline 2 are at least It is set to seven, but the above actual configuration quantity is not limited thereto.

Preferred implementation, as shown in Figure 3 and Figure 4, wherein the first circulating water volume 41 of the circulating water supply system 4 corresponds to opening the control valve 3 and the first water distribution pipeline 1 and the second distribution pipeline. The water pipeline 2 is fully open and fully sprinkled at the same time, and the second circulating water volume 42 is used to close the control valve 3 correspondingly, and only one of the second water distribution pipelines 2 is used to perform half-open water sprinkling.

Preferred implementation, as shown in Figures 1 to 4, the present invention implements the application of an adjustable water distribution system for cooling tower defogging and energy saving, which may include: first, constructing a cooling tower for adjusting fog removal and energy saving The water distribution system has the above-mentioned first water distribution pipeline 1, a first water distribution pipeline nozzle 10, a second water distribution pipeline 2, a second water distribution pipeline nozzle 20, a control valve 3, and a circulating water supply System 4, wherein the first water distribution pipeline 1 and the second water distribution pipeline 2 are layered to form a height difference, and a continuous water distribution pipeline is provided between the second water distribution pipeline 2 and the first water distribution pipeline 1 Through part 201, the two main pipes 11 and 21 of the first water distribution pipeline 1 and the second water distribution pipeline 2 are arranged up and down in a front and rear staggered configuration, and the first water distribution pipeline 1 and the second water distribution pipeline 2 are arranged A plurality of branch pipes 12, 22 are provided with a plurality of spray heads 13, 23 at intervals to form the first and second water distribution pipelines. The spray heads 10, 20 are arranged alternately in the upper and lower layers, and can correspond to different pressures and spraying ranges; the control The valve 3 is composed of an automatic control butterfly valve, which is arranged between the main pipe 11 of the first water distribution pipeline 1 and the communication part 201 of the second water distribution pipeline 2, and; the circulating water supply system 4 has a water supply pipeline 40 , to be connected to the main pipe 11 of the first water distribution pipeline 1, a cooling water pump 401 controlled by frequency conversion is provided on the water supply pipeline 40, and the circulating water supply system 4 has a segmented water supply set point as a high and low water level distinction, to correspond to A first circulating water volume 41 and a second circulating water volume 42 open or close the control valve 3; step 1, when the overall circulating water volume of the cooling water tower is normally sufficiently higher than the subsection water supply set point such as 60%, as the circulating water supply The first circulating water volume 41 of the system 4 is to correspondingly open the control valve 3 to provide the first water distribution pipeline 1 and the second water distribution pipeline 2 to perform full-open and sufficient water sprinkling at the same time, and Step 2. When the overall circulating water volume of the cooling water tower drops below the subsection water supply set point, such as 60%, the second circulating water volume 42 of the circulating water supply system 4 is used to correspondingly close the control valve 3, and only one is selected to use the first The second water distribution pipeline 2 is mainly used for sprinkling water at half-open intervals.

Compared with the existing conventional technology, the advantages of the adjustable water distribution system for cooling water tower defogging and energy saving of the present invention are:

1. The first water distribution pipeline 1 and the second water distribution pipeline 2 in the cooling water tower can be divided into upper and lower layers, and the automatic control valve 3 is installed on the first water distribution pipeline 1 on the upper layer to control the flow of circulating water in an adjustable manner, so that Pressure balance is carried out in its pipeline.

2. The branch pipes 12, 22 of the upper and lower main pipes 11, 21 of the first water distribution pipeline 1 and the second water distribution pipeline 2 are arranged in a staggered pattern, so that when the circulating water decreases, the control valve 3 can be used to control the scheduling, The water distribution uniformity of the internal circulating water supply system 4 of the adjustable cooling water tower can be achieved, and the water can be evenly distributed on the filler more effectively.

3. For example, when the circulating water flow rate drops to 60%, but the actual circulating water volume is not limited to this, the automatic control valve 3 is closed, and only the second water distribution pipeline 2 at the bottom is used for uniform watering, so it can be used more effectively The heat transfer area of the filler achieves the best heat dissipation performance of the cooling tower.

4. The overall structural design is reasonable and effective, which can easily meet various customized needs. The pipe diameters of main pipes and branch pipes, as well as the actual pipe configuration size, can be adjusted according to the design water volume, cooling tower size and packing type.

5. The sprinkler head type must be allocated according to the design water volume in the upper and lower pipelines, and the distance between the sprinkler head and the filler should be considered, and the optimized sprinkler head type should be adopted to facilitate the uniformity of water distribution in the overall cooling water tower. And through the uniform distribution of water to dissipate heat, the hot and humid air passing through the cooling fins is homogenized, effectively reducing the concentration of mist in the exhaust air, and achieving the effect of eliminating fog.

In summary, the novelty and practicality of the present invention fully meets the requirements of a patent, and an application for a patent for invention is proposed. But the above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention; so all equivalent changes and modifications made according to the patent scope of the present invention and the contents of the creation instructions should be It is within the scope covered by the patent of the present invention.

1: The first water distribution pipeline

11: supervisor

110: water inlet

12: branch pipe

13: sprinkler head

2: The second water distribution pipeline

201: Connectivity Department

21: Supervisor

22: branch pipe

23: sprinkler head

3: Control valve

4: Circulating water supply system

40: Water supply pipeline

401: cooling water pump

41: The first circulating water volume

42: The second circulating water volume

Claims (5)

An application of an adjustable water distribution system for cooling tower defogging and energy saving, which mainly includes: firstly, constructing an adjustable water distribution system for cooling tower defogging and energy saving, which has a first water distribution pipeline and a first water distribution pipeline Nozzle, a second water distribution pipeline, a second water distribution pipeline nozzle, a control valve, and a circulating water supply system, wherein; the first water distribution pipeline has a main pipe whose front end is a water inlet and the rear end is closed, The two sides of the main pipe are connected with a plurality of branch pipes at intervals, and a plurality of sprinkler heads are arranged at intervals on each branch pipe to form the nozzles of the first water distribution pipe; the second water distribution pipe also has a main pipe and its front and rear ends Both sides of the main pipe are closed, and a plurality of branch pipes are connected at intervals on both sides of the main pipe, and a plurality of sprinkler heads are arranged at intervals on each branch pipe to form the nozzle of the second water distribution pipeline. The second water distribution pipeline is connected with the first distribution pipe The water pipelines are layered to form a height difference, and a communication part is provided between the two main pipe front sections of the second water distribution pipeline and the first water distribution pipeline, wherein the first water distribution pipeline is set on the upper layer , and the second water distribution pipeline is arranged in the lower layer, and the plurality of branch pipes of the first and second water distribution pipelines are arranged in a staggered interval, so that the nozzles of the first and second water distribution pipelines are arranged in a staggered interval between the upper and lower layers, It can correspond to different pressures and spraying ranges; the control valve is composed of an automatic control butterfly valve, which is installed on the main pipe of the first water distribution pipeline at a short distance behind the communication part. When the control valve is opened, the first The water distribution pipeline is fully connected to the second water distribution pipeline, and when the control valve is closed to block the rear section of the main pipe of the first water distribution pipeline, it is only connected to the second water distribution pipeline through the communication part, and; The circulating water supply system has a water supply pipeline connected to the water inlet of the main pipe of the first water distribution pipeline through a cooling water pump regulated by a frequency conversion, and the circulating water supply system has a segmented water supply The set points are distinguished as high and low water levels, so as to respectively correspond to a first circulating water volume and a second circulating water volume, and perform the following method steps: Step 1, when the overall circulating water volume of the cooling water tower is normally sufficiently higher than the subsection water supply set point, as The first circulating water volume of the circulating water supply system is to correspondingly open the control valve, provide the first water distribution pipeline and the second water distribution pipeline to sprinkle water at the same time, and; step 2, when the overall circulating water volume of the cooling water tower decreases At the sectional water supply set point, as the second circulating water volume of the circulating water supply system, the control valve is correspondingly closed, and only the second water distribution pipeline is provided for sprinkling. Application of an adjustable water distribution system for cooling tower defogging and energy saving as described in Claim 1, wherein the two main pipes of the first and second water distribution pipelines are arranged up and down and arranged in a staggered manner. The application of the adjustable water distribution system for cooling tower fog elimination and energy saving as described in claim 2, wherein the sprinklers of each branch of the first water distribution pipeline are arranged downward; the second water distribution pipeline An S-shaped adapter is provided between each branch pipe and the main pipe, and the spray heads of each branch pipe are disposed downward. As mentioned in claim item 3, the application of the adjustable water distribution system for cooling tower defogging and energy saving, wherein the circulating water supply system takes 60% of the overall circulating water volume of the cooling water tower as the segmented water supply set point, when the overall circulating water volume is higher than 60% % is used as the first circulating water volume to correspondingly open the control valve for full-open and full-scale sprinkling, wherein the circulating water supply system reduces the overall circulating water volume of the cooling tower to 60%, and as the second circulating water volume correspondingly closes the control valve for half-opening Sprinkle sparingly. The application of the adjustable water distribution system for cooling tower defogging and energy saving as described in claim item 3, wherein the plurality of sprinkler heads on each branch of the first water distribution pipeline is set at least eight, and the second water distribution pipeline There are at least seven sprinkler heads on each branch pipe.

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