CN114383463A - Cooling tower water distribution control method and device, water distribution system and cooling tower - Google Patents
Cooling tower water distribution control method and device, water distribution system and cooling tower Download PDFInfo
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- CN114383463A CN114383463A CN202210077341.3A CN202210077341A CN114383463A CN 114383463 A CN114383463 A CN 114383463A CN 202210077341 A CN202210077341 A CN 202210077341A CN 114383463 A CN114383463 A CN 114383463A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 238000001816 cooling Methods 0.000 title claims abstract description 94
- 238000009826 distribution Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 239000000498 cooling water Substances 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 3
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 description 7
- 238000013316 zoning Methods 0.000 description 5
- 238000005399 mechanical ventilation Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a cooling tower water distribution control method, a cooling tower water distribution control device, a water distribution system and a cooling tower, wherein the method comprises the following steps: the water distribution system of the cooling tower is controlled in a subarea mode, each subarea is provided with a water quantity regulating valve, and the opening degree of each water quantity regulating valve is regulated in real time or at regular time at least according to the feedback of the heat exchange output temperature T of the circulating cooling water of each subarea. According to the cooling tower water distribution control method and device, the water distribution system and the cooling tower, the limitation of uniform water distribution is broken, and the air-water ratio in the cooling tower can be optimized only through small structural improvement, so that the cooling efficiency of the cooling tower is improved.
Description
Technical Field
The invention relates to the technical field of cooling towers, in particular to a cooling tower water distribution control method, a cooling tower water distribution control device, a water distribution system and a cooling tower.
Background
The cooling tower is an important accessory device of a power plant, and because the circulating water volume of the power plant is relatively large, a natural ventilation cooling tower or a mechanical ventilation cooling tower is generally adopted to cool steam and water in a condenser to required temperature.
The natural ventilation cooling tower is a cooling tower which carries out ventilation and heat exchange by depending on air flow formed by density difference of air inside and outside the tower, and the mechanical ventilation cooling tower is a cooling tower which carries out ventilation and heat exchange by depending on rotation of a fan. The two working principles are that the circulating cooling water is conveyed to the water distribution system through the water pump, and the water is uniformly sprayed on the packing layer through the injection device of the water distribution system; air enters from the bottom of the cooling tower under the action of air density difference or draught fan suction, hot water flows through the surface of the filler to form a water film to exchange heat with the air, hot air is pumped out from the top, and cooling water drips into a water collecting tank at the bottom of the cooling tower and flows into a condenser for heat exchange through a water outlet pipe.
In the prior art, water distribution can be adjusted to an inner zone and an outer zone according to the water quantity of an upper tower, but uniform water distribution is pursued in the water distribution of the inner zone and the outer zone so as to keep the water spraying density consistent. However, in the case of a natural draft cooling tower or a mechanical draft cooling tower, the cooling efficiency of the cooling tower is not high in the case of uniform water distribution.
Disclosure of Invention
In view of the above, the technical problems to be solved by the present invention are: the first aspect is to provide a water distribution control method for a cooling tower, which breaks through the limitation of uniform water distribution, optimizes the air-water ratio in the cooling tower only through small structural improvement, and further improves the cooling efficiency of the cooling tower.
In order to solve the technical problem of the first aspect, the invention provides a water distribution control method for a cooling tower, wherein a water distribution system of the cooling tower is controlled in a partitioning manner, each partition is provided with a water quantity regulating valve, and the opening degree of each water quantity regulating valve is regulated in real time or at regular time at least according to feedback of heat exchange output temperature T of circulating cooling water of each partition.
Preferably, the method comprises the following specific steps:
s1: performing reading acquisition on the heat exchange output temperature T of the circulating cooling water of each subarea;
s2: calculating the average heat exchange output temperature T of the circulating cooling water of all the subareasAre all made of；
S3: and adjusting the opening degree of each water quantity adjusting valve in real time or at fixed time according to the magnitude of the delta T value of each subarea so as to enable the heat exchange output temperature T of the circulating cooling water of all the subareas to gradually tend to be consistent, wherein the delta T is equal to T-T.
Preferably, step S3 includes the following specific steps:
s31: when the delta T is larger than the delta T1, the opening of the corresponding subarea water quantity regulating valve is subjected to small regulation control;
s32: when the absolute delta T is less than or equal to delta T1, keeping the opening degree of the corresponding subarea water quantity regulating valve unchanged;
s33: when the delta T plus the delta T1 is less than 0, the opening degree of the corresponding subarea water quantity regulating valve is controlled to be increased;
wherein, the delta T1 represents a preset deviation temperature threshold, and the delta T1 is more than or equal to 0.
Preferably, 0 ℃ to DELTA T1 to 2 ℃.
Preferably, the circulating cooling water heat exchange output temperature T is measured by any one of a fixed infrared thermal imager, a movable infrared thermal imager and a temperature measuring point under the filling layer of each subarea of the water distribution system.
Preferably, the water distribution system is additionally provided with an automatic control device, and the water quantity regulating valve configured in each subarea is in communication connection with the automatic control device.
Preferably, each water quantity regulating valve is also regulated in real time or at regular time according to the air quantity measured value of the corresponding subarea.
The technical problems to be solved by the invention are as follows: the second aspect provides a water distribution control device for a cooling tower, and/or the third aspect provides a water distribution system, and/or the fourth aspect provides a cooling tower, which breaks the limitation of uniform water distribution, optimizes the air-water ratio inside the cooling tower only through small-amplitude structural improvement, and further improves the cooling efficiency of the cooling tower.
In order to solve the technical problem of the second aspect, the invention provides a cooling tower water distribution control device, which is used for executing the method of any one of the embodiments of the first aspect, and the device comprises:
an acquisition module: the device is used for carrying out reading acquisition on the heat exchange output temperature T of the circulating cooling water of each subarea;
a calculation module: the device is used for calculating the average heat exchange output temperature T of the circulating cooling water of all the subareas according to the reading acquisition of the acquisition moduleAre all made of；
An adjusting module: the opening degree of each water quantity regulating valve is regulated in real time or at fixed time according to the magnitude of the delta T value of each subarea so as to ensure that the heat exchange output temperature T of the circulating cooling water of all the subareas gradually tends to be consistent, wherein the delta T is T-TAre all made of。
To solve the technical problem of the third aspect, the present invention provides a water distribution system, including a computer-readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed by the processor to implement the method according to any one of the embodiments of the first aspect.
In order to solve the technical problem of the fourth aspect, the invention provides a cooling tower, which is provided with the water distribution system of any embodiment of the third aspect.
Compared with the prior art, the cooling tower water distribution control method, the cooling tower water distribution control device, the cooling tower water distribution system and the cooling tower have the following beneficial effects:
the limit of uniform water distribution is broken through, and the air-water ratio in the cooling tower can be optimized only through small structural improvement, so that the cooling efficiency of the cooling tower is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and are not to limit the invention. In the drawings:
FIG. 1 is a schematic plan view of a water distribution system of a forced draft cooling tower according to the prior art;
fig. 2 is a schematic plan view of a water distribution system of a mechanical draft cooling tower according to embodiment 1 of the present invention.
Detailed Description
In order to make the aforementioned objects, technical solutions and advantages of the present invention more comprehensible, the present invention is described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only some of the embodiments constituting the present invention, and are not intended to limit the present invention, and the embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
Referring to fig. 2, the invention provides a water distribution control method for a cooling tower, wherein a water distribution system of the cooling tower adopts zone control, each zone is provided with a water quantity regulating valve, and the opening degree of each water quantity regulating valve is regulated in real time or at regular time at least according to feedback of heat exchange output temperature T of circulating cooling water of each zone.
Referring to fig. 1, a schematic plan view of a water distribution system of a mechanical draft cooling tower is shown. In the context of figure 1 of the drawings,in the direction from the mark point A to the mark point L, the total number of the sections can be divided into twelve partitions, in order to pursue that the inside of the water distribution system has the same water spraying density, the pipe diameters of an AE section, a FH section and an IL section of the water outlet main pipe tend to decrease section by section, for example, the pipe diameters of the three sections can be respectively set to DN1000, DN800 and DN600, and the unit can be mm. Meanwhile, on the branch pipe corresponding to each subarea, the marking point is arranged along the position of the marking point I to the marking point
In the direction, the jetting pressure (jetting range) of the jetting device gradually tends to weaken.
Compared with fig. 1, the zoning structure shown in fig. 2 breaks the limitation of overlong distribution of the branch pipes of the single zoning in fig. 1, and greatly improves the convergence setting of the spraying device, but the pipe diameter setting of each section of the water outlet main pipe can be the same as that in fig. 1, only the connection between the water outlet main pipe and each branching pipe of each zoning tends to be complicated, but the arrangement of the water quantity regulating valve arranged in each zoning is not influenced. It should also be noted here that, in practice, based on the partition structure shown in fig. 1, it is also possible to improve the water quantity regulating valve and to apply the present invention, i.e. the present invention does not require any particular limitation to the partition structure of the water distribution system.
A large number of researches show that no matter a natural ventilation cooling tower or a mechanical ventilation cooling tower is adopted, airflow in the tower is not uniformly distributed everywhere, and the wind speed and the wind quantity of all the places are inconsistent, so that under the condition of uniform water distribution, although the water spraying density is the same, the gas-water ratio of all the places has larger difference, and further the air-water ratio of the cooling tower is poor, namely the heat exchange output temperature T of circulating cooling water of each subarea has larger difference, and further the cooling efficiency of the cooling tower is lower corresponding to the subarea with higher heat exchange output temperature T.
In the invention, by breaking the traditional limitation of uniform water distribution, when the water distribution system is redesigned, the design difficulty and the production and manufacturing difficulty are both greatly reduced, and on the contrary, the air-water ratio in the cooling tower is optimized in real time or in fixed time due to the real-time adjustment or the fixed-time adjustment of the opening of the water quantity regulating valve of each subarea, so that the cooling efficiency of the cooling tower is improved. The timing adjustment can be manually realized, for example, the opening of each water quantity adjusting valve is manually adjusted every two hours. Meanwhile, even if the existing water distribution system is modified, the cooling efficiency of the cooling tower can be easily improved by only a small structural improvement such as 'water quantity regulating valves are arranged in each partition'.
Preferably, the circulating cooling water heat exchange output temperature T is measured by any one of a fixed infrared thermal imager, a movable infrared thermal imager and a temperature measuring point under the filling layer of each subarea of the water distribution system.
Specifically, as described in the background art, air enters from the bottom of the cooling tower under the action of air density difference or fan suction, hot water flows through the surface of the packing to form a water film to exchange heat with the air, hot air is pumped out from the top, and cooling water drips into a water collecting tank at the bottom of the cooling tower and flows into a condenser for heat exchange through a water outlet pipe. Therefore, the temperature of the circulating cooling water under each partition packing layer is measured, and the circulating cooling water heat exchange output temperature T can be represented to the greatest extent, so that the feedback control effect of the circulating cooling water heat exchange output temperature T is ensured.
Preferably, the method comprises the following specific steps:
s1: performing reading acquisition on the heat exchange output temperature T of the circulating cooling water of each subarea;
s2: calculating the average heat exchange output temperature T of the circulating cooling water of all the subareasAre all made of；
S3: and adjusting the opening degree of each water quantity adjusting valve in real time or at fixed time according to the magnitude of the delta T value of each subarea so as to enable the heat exchange output temperature T of the circulating cooling water of all the subareas to gradually tend to be consistent, wherein the delta T is equal to T-T.
Specifically, in a stand-alone cooling tower water distribution system, the instantaneous flow of circulating cooling water can be T, no matter how fluctuating it varies with its upstream loadAre all made ofThe value is used as a regulation target so thatThe T values of the opening degrees of the water quantity regulating valves of all the subareas gradually tend to be consistent after real-time or timing regulation. When a manual adjustment mode is adopted, the consistency deviation can not be controlled, for example, only one manual adjustment is needed every two hours; or the consistency deviation can be properly controlled by additionally arranging an alarm reminding unit.
Preferably, step S3 includes the following specific steps:
s31: when the delta T is larger than the delta T1, the opening of the corresponding subarea water quantity regulating valve is subjected to small regulation control;
s32: when the absolute delta T is less than or equal to delta T1, keeping the opening degree of the corresponding subarea water quantity regulating valve unchanged;
s33: when the delta T plus the delta T1 is less than 0, the opening degree of the corresponding subarea water quantity regulating valve is controlled to be increased;
wherein, the delta T1 represents a preset deviation temperature threshold, and the delta T1 is more than or equal to 0.
Specifically, as mentioned above, if the preset deviation temperature threshold Δ T1 is set, Δ T1 indicates an allowable consistency deviation, that is, when |, Δ T | ≦ Δ T1, it is determined that the adjustment target has been achieved or at least has been achieved in stages, and then at the current stage, the opening degree of the corresponding zoning water amount adjustment valve is kept unchanged; otherwise, corresponding control of increasing or decreasing is required. The positive and negative values of the delta T value represent the adjusting direction of the opening, namely when the delta T value is a positive number, the theoretical excess supply phenomenon exists in the water supply quantity of the corresponding subarea compared with the air quantity distribution condition, and when the delta T is more than delta T1, the turning-down control needs to be carried out, and the larger the deviation value of the delta T value and the delta T1 is, the larger the opening turning-down force is; on the contrary, when the value of Δ T is negative, it represents that the theoretical shortage of water supply compared with the air volume distribution exists in the corresponding sub-area, and when the value of Δ T +. DELTA.T 1 is still less than 0, the control of increasing the opening is required, and the larger the deviation value of Δ T +. DELTA.T 1 from 0 is, the larger the opening increasing force is. Therefore, the air-water ratio of all the subareas can be greatly optimized, and the cooling efficiency of the cooling tower is improved.
Preferably, the water distribution system is additionally provided with an automatic control device, and the water quantity regulating valve configured in each subarea is in communication connection with the automatic control device.
Specifically, when an automatic adjustment mode is adopted, the accuracy control can be performed on the allowable consistency deviation, and at the moment, the value range of the delta T1 can be controlled in a relatively more accurate smaller range, so that the wind-water ratio of all the subareas can be further optimized, and the cooling efficiency of the cooling tower can be further improved.
Preferably, 0 ℃ to DELTA T1 to 2 ℃.
Specifically, when the value of delta T1 is 0 ℃, which means that the consistency deviation does not exist in the adjustment target, the heat exchange output temperature T of the circulating cooling water of all the subareas needs to be equal to T at any momentAre all made ofKeeping consistent, wherein the requirement on the adjusting frequency of the opening of each water quantity adjusting valve is higher; however, since there is a certain hysteresis between the feedback of the heat exchange output temperature T of the circulating cooling water and the air-water ratio before heat exchange, even if Δ T1 takes the value of 2 ℃, for example, the cooling efficiency of the cooling tower is not necessarily reduced or significantly reduced, which is favorable for reducing the design difficulty or purchase cost of the automatic control device and is also favorable for improving the service life of the automatic control device and even the water quantity regulating valves.
Preferably, each water quantity regulating valve is also regulated in real time or at regular time according to the air quantity measured value of the corresponding subarea.
Specifically, for a power plant, there may be multiple sets of generator sets and cooling towers, and the number and the association manner of the generator sets and the cooling towers thereof need not be particularly limited. And for each independent cooling tower water distribution system, the instant flow of the circulating cooling water can be adaptively adjusted according to the change of the total power generation load of the power plant. In this scenario, the air volume distribution of the natural ventilation cooling tower is controllable without manpower, or the total ventilation volume of the mechanical ventilation cooling tower can be controlled manually, but in consideration of the real-time operation condition and even the maximum power limit of the fan and other extreme conditions, in order to ensure that the air-water ratio is always in a better control range, the above-mentioned adaptive adjustment of the instantaneous flow of the circulating cooling water can also be used for auxiliary control with the air volume measurement value (air volume distribution condition) as a reference in parallel on the basis of the main control logic of the heat exchange output temperature T of the circulating cooling water. Namely, for each subarea, each water quantity regulating valve can also be regulated in real time or at regular time according to the air quantity measured value of the corresponding subarea.
Preferably, the air quantity measuring point of each subarea is arranged at the same position above the subarea filler layer.
Specifically, the air volume measuring point of each subarea is arranged above the subarea packing layer where the air volume measuring point is located, so that the air volume distribution condition of each subarea before air-water heat exchange can be represented to the greatest extent, and the auxiliary control effect of taking the air volume distribution condition as a reference index is ensured.
Example 2
Referring to fig. 2, the present invention also provides a water distribution control device for a cooling tower, for performing the method as described in embodiment 1, the device comprising:
an acquisition module: the device is used for carrying out reading acquisition on the heat exchange output temperature T of the circulating cooling water of each subarea;
a calculation module: the device is used for calculating the average heat exchange output temperature T of the circulating cooling water of all the subareas according to the reading acquisition of the acquisition moduleAre all made of；
An adjusting module: the opening degree of each water quantity regulating valve is regulated in real time or at fixed time according to the magnitude of the delta T value of each subarea so as to ensure that the heat exchange output temperature T of the circulating cooling water of all the subareas gradually tends to be consistent, wherein the delta T is T-TAre all made of。
The invention also provides a water distribution system comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor for performing the method as described in embodiment 1.
The invention also provides a computer-readable storage medium, which stores a computer program that, when read and executed by a processor, implements the method as described in embodiment 1.
Specifically, as will be understood by those skilled in the art, the method as described in embodiment 1 can be implemented by a combination of hardware and software in the cooling tower water distribution control device, the water distribution system, and the computer readable storage medium provided in embodiment 2. For information interaction, execution process and the like of any one of the cooling tower water distribution control device, the water distribution system and the computer readable storage medium, reference may be made to the description of the cooling tower water distribution control method in embodiment 1, which is not described in detail herein.
Further, the invention also provides a cooling tower which is provided with the water distribution system in the embodiment 2.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The water distribution control method of the cooling tower is characterized in that a water distribution system of the cooling tower is controlled in a partitioning mode, each partition is provided with a water quantity regulating valve, and the opening degree of each water quantity regulating valve is regulated in real time or at regular time at least according to feedback of heat exchange output temperature T of circulating cooling water of each partition.
2. The method for controlling water distribution of the cooling tower according to claim 1, wherein the method comprises the following specific implementation steps:
s1: performing reading acquisition on the heat exchange output temperature T of the circulating cooling water of each subarea;
s2: calculating the average heat exchange output temperature T of the circulating cooling water of all the subareasAre all made of；
S3: and adjusting the opening degree of each water quantity adjusting valve in real time or at fixed time according to the magnitude of the delta T value of each subarea so as to enable the heat exchange output temperature T of the circulating cooling water of all the subareas to gradually tend to be consistent, wherein the delta T is equal to T-T.
3. The method for controlling water distribution of the cooling tower according to claim 2, wherein the step S3 comprises the following steps:
s31: when the delta T is larger than the delta T1, the opening of the corresponding subarea water quantity regulating valve is subjected to small regulation control;
s32: when the absolute delta T is less than or equal to delta T1, keeping the opening degree of the corresponding subarea water quantity regulating valve unchanged;
s33: when the delta T plus the delta T1 is less than 0, the opening degree of the corresponding subarea water quantity regulating valve is controlled to be increased;
wherein, the delta T1 represents a preset deviation temperature threshold, and the delta T1 is more than or equal to 0.
4. The method for controlling water distribution of the cooling tower according to claim 3, wherein the temperature is 0 DEG C
≤△T1≤2℃。
5. The cooling tower water distribution control method according to any one of claims 1-4, wherein the circulating cooling water heat exchange output temperature T is measured by any one of a fixed infrared thermal imager, a mobile infrared thermal imager and a temperature measuring point under each section packing layer of the water distribution system.
6. The cooling tower water distribution control method according to any one of claims 1-4, wherein an automatic control device is additionally arranged in the water distribution system, and a water quantity regulating valve arranged in each partition is in communication connection with the automatic control device.
7. The cooling tower water distribution control method according to any one of claims 1-4, wherein each water quantity regulating valve is also regulated in real time or at regular time according to the air quantity measured value of the corresponding subarea.
8. A cooling tower water distribution control device, for performing the method of any one of claims 1-7, the device comprising:
an acquisition module: the device is used for carrying out reading acquisition on the heat exchange output temperature T of the circulating cooling water of each subarea;
a calculation module: the device is used for calculating the average heat exchange output temperature T of the circulating cooling water of all the subareas according to the reading acquisition of the acquisition moduleAre all made of；
An adjusting module: the opening degree of each water quantity regulating valve is regulated in real time or at fixed time according to the magnitude of the delta T value of each subarea so as to ensure that the heat exchange output temperature T of the circulating cooling water of all the subareas gradually tends to be consistent, wherein the delta T is T-TAre all made of。
9. A water distribution system, comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to perform the method according to any one of claims 1-7.
10. A cooling tower having the water distribution system of claim 9.
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