CN114294992A - Water distribution method, device, equipment and storage medium for cooling tower - Google Patents

Water distribution method, device, equipment and storage medium for cooling tower Download PDF

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CN114294992A
CN114294992A CN202111664258.8A CN202111664258A CN114294992A CN 114294992 A CN114294992 A CN 114294992A CN 202111664258 A CN202111664258 A CN 202111664258A CN 114294992 A CN114294992 A CN 114294992A
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branch
pipeline
calculating
flow
water
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CN114294992B (en
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刘雪峰
丁笠伟
徐瑾蔓
曾德强
彭志波
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Weiken Electromechanical Guangzhou Technology Co ltd
South China University of Technology SCUT
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Weiken Electromechanical Guangzhou Technology Co ltd
South China University of Technology SCUT
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • 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
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]

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Abstract

The application discloses a water distribution method, a device, equipment and a storage medium of a cooling tower, the application calculates the flow ratio of each branch pipeline and each main pipeline section which are connected with the same water outlet end for shunting according to a first total resistance coefficient of each branch pipeline, a second total resistance coefficient of each main pipeline section in a main pipeline and a flow rate correction value of each branch pipeline, and then calculates the branch flow of each branch pipeline according to the ratio of the total water flow and the flow rate so as to distribute the total water to a plurality of branch pipelines, the total resistance coefficient is adopted when calculating the flow ratio, thereby not only reducing the variables required to be calculated, but also quickly and accurately calculating the water quantity required to be distributed by each branch pipeline, solving the technical problem of accurately calculating and distributing the water quantity of the cooling tower, and also accurately calculating the actual water inlet quantity of the cooling tower according to the resistance characteristic of each cooling tower water inlet pipeline, therefore, a basis is provided for calculating the thermal performance of the cooling tower and predicting the outlet water temperature and the heat dissipation capacity of the cooling tower.

Description

Water distribution method, device, equipment and storage medium for cooling tower
Technical Field
The present disclosure relates to cooling towers, and particularly to a method, an apparatus, a device and a storage medium for water distribution in a cooling tower.
Background
At present, the main equipment for cooling the circulating water is a cooling tower, which can be divided into a counter-flow cooling tower and a cross-flow cooling tower from the flowing direction of water and air flow, and can be divided into a square and a rectangle from the appearance, wherein the square is mainly used on the counter-flow cooling tower, and the rectangle is mainly used on the cross-flow cooling tower; the water distribution mode can be divided into a plurality of modes, such as pipe type water distribution, disc type (pool type) water distribution, groove type water distribution and the like. The cooling tower works according to the principles of contact heat exchange between water and air and evaporative cooling, and the basic principle is that hot water enters a water distribution device at the upper part of the cooling tower through an upper water pipe, then, hot water is uniformly sprayed on the water spraying filler pieces through the water distribution device, the hot water flows downwards along the surfaces of the filler pieces, forming uniform water films on the concave-convex surfaces of the water spraying packing sheets, sucking cold air into the tower from the air inlet under the action of rotation of the fan impeller, penetrating through gaps among the packing sheets, exchanging heat with the water films on the packing sheets, absorbing heat in the water films, simultaneously, because of the negative pressure in the tower, part of water is evaporated, thereby taking away the heat in the water, finally discharging the water out of the tower and dissipating the water into the atmosphere, the hot water with heat taken away is cooled and finally collected into a water collecting basin (pool) at the bottom of the cooling tower to enter equipment needing cooling for the next time.
When a thermodynamic model of the cooling tower is constructed, water needs to be distributed to each cooling tower, so that how to accurately calculate and distribute the water of the cooling tower is very important.
Disclosure of Invention
The application provides a water quantity distribution method, a water quantity distribution device, equipment and a storage medium of a cooling tower, which are used for solving the technical problem of accurately calculating and distributing the water quantity of the cooling tower.
The present application provides in a first aspect a water distribution method for a cooling tower, which is applied to a cooling tower device in a cold source system, the cooling tower device includes a cooling tower, a branch pipeline and a main pipeline, the main pipeline is provided with a plurality of water outlets, the branch pipeline and the cooling tower are connected to form a branch, the branch and the water outlets are connected to connect a plurality of branches in parallel to the main pipeline, the water distribution method includes:
acquiring the total water quantity of the water inlet end of the main pipeline;
acquiring a first total resistance coefficient of the branch pipeline and a second total resistance coefficient of each main pipeline section in the main pipeline;
calculating the flow rate correction value of each branch pipeline;
calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main pipeline according to the first total resistance coefficients, the second total resistance coefficients and the flow speed correction value;
calculating the branch flow of each branch pipeline according to the ratio of the total water amount to the flow;
and distributing the total water quantity to a plurality of branch pipelines according to the branch pipelines and the branch flow quantity.
The method calculates the flow ratio of each branch pipeline and each main pipeline section which are connected with the same water outlet end for shunting according to the first total resistance coefficient of each branch pipeline, the second total resistance coefficient of each main pipeline section in the main pipeline and the flow rate correction value of each branch pipeline, calculates the branch flow of each branch pipeline according to the total water flow and the flow ratio so as to distribute the total water to a plurality of branch pipelines, adopts the total resistance coefficient when calculating the flow ratio, not only can reduce the variables required to be calculated, but also can quickly and accurately calculate the water quantity required to be distributed by each branch pipeline, not only solves the technical problem of accurately calculating and distributing the water quantity of a cooling tower, more importantly, can accurately calculate the actual water inlet quantity of each cooling tower according to the resistance characteristic of a water inlet pipeline of the cooling tower, thereby calculating the thermal performance of the cooling tower, and providing basis for predicting the outlet water temperature and the heat dissipation capacity of the cooling tower.
Optionally, a plurality of the branch circuits are all connected in parallel to the same side of the main path pipeline, and the water inlet end of the main path pipeline is one of the two ends of the main path pipeline;
the calculating the flow ratio of the branch pipeline connected with the same water outlet end for shunting and the main pipeline section in the main pipeline according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value comprises:
traversing from the end opposite to the water inlet end of the main path pipeline, and calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main path pipeline according to a plurality of first total resistance coefficients, second total resistance coefficients and the flow speed correction value.
Optionally, the calculating the branch flow rate of each branch pipeline according to the ratio of the total water amount to the plurality of flow rates includes:
and calculating the branch flow of each branch pipeline from the water inlet end of the main pipeline according to the ratio of the total water quantity to the plurality of flows.
Optionally, the calculating a flow rate correction value of each branch pipeline includes:
calculating a first cross-sectional area of each of the branch conduits;
calculating the number of nozzles and the second cross-sectional area in each branch pipeline;
and calculating a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of the nozzles and the second cross-sectional area.
Optionally, said calculating a flow rate correction value for each of said branch conduits based on said first cross-sectional area, said number of nozzles and said second cross-sectional area comprises:
calculating a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of the nozzles and the second cross-sectional area based on a first preset formula and a second preset formula;
the first preset formula is as follows:
Figure BDA0003450607110000031
the second preset formula is as follows:
Figure BDA0003450607110000032
wherein c is a flow rate correction value, n is the number of nozzles, AiIs the first cross-sectional area, v, of the ith branch conduitiThe flow rate of the ith branch pipe, AnozzleThe second cross-sectional area of the nozzle.
A second aspect of the present application provides a water amount distribution device of a cooling tower, comprising:
the first acquisition unit is used for acquiring the total water quantity of the water inlet end of the main pipeline;
the second acquiring unit is used for acquiring a first total resistance coefficient of the branch pipeline and a second total resistance coefficient of each main pipeline section in the main pipeline;
the first calculation unit is used for calculating the flow rate correction value of each branch pipeline;
the second calculation unit is used for calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main pipeline according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value;
the third calculating unit is used for calculating the branch flow of each branch pipeline according to the ratio of the total water quantity to the flow;
and the distribution unit is used for distributing the total water quantity to the branch pipelines according to the branch pipelines and the branch flow quantity.
A third aspect of the present application provides an electronic device comprising a processor and a memory storing a computer program, the processor implementing the steps of the method for water distribution for a cooling tower according to the first aspect when executing the computer program.
A fourth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the water quantity distribution method of a cooling tower according to the first aspect.
Drawings
FIG. 1 is a schematic flow chart of a water distribution method for a cooling tower according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of water distribution in a cooling tower according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of water distribution in another cooling tower provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a water distribution device of a cooling tower according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides a water quantity distribution method, a water quantity distribution device, equipment and a storage medium of a cooling tower, and is used for solving the technical problem of accurately calculating and distributing the water quantity of the cooling tower.
In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 3, an embodiment of the present application provides a water distribution method for a cooling tower, which is applied to a cooling tower device in a cold source system, the cooling tower device includes a cooling tower, a branch pipeline and a main pipeline, the main pipeline is provided with a plurality of water outlets, the branch pipeline and the cooling tower are connected to form a branch, the branch and the water outlets are connected to connect a plurality of branches to the main pipeline in parallel, the water distribution method includes:
and S101, acquiring the total water quantity of a water inlet end of the main pipeline.
It should be noted that, as shown in fig. 2 and fig. 3, when calculating the branch flow rates of the different branch pipelines, the total water amount at the water inlet end of the main pipeline needs to be obtained first, and the method for obtaining the total water amount may be obtained by other methods in the prior art, such as adding a flow meter and other detection devices to perform detection.
Step S102, a first total resistance coefficient of the branch pipeline and a second total resistance coefficient of each main pipeline section in the main pipeline are obtained.
It should be noted that, with reference to fig. 2 and 3, a first total resistance coefficient of the branch conduits, that is, a first total resistance coefficient including the branch conduits 1, 3, 5, 7, and 9, is obtained, and a second total resistance coefficient of each main conduit segment in the main conduit, that is, a second total resistance coefficient including the main conduit segments 2, 4, 6, and 8, is obtained.
And step S103, calculating a flow rate correction value of each branch pipeline.
Since each branch pipe connected to the cooling tower is provided with a water distributor, the flow rate of the branch pipe is not equal to the actual flow rate, and therefore, a flow rate correction value needs to be calculated to correct the flow rate of each branch pipe to the flow rate flowing through the water distributor.
And step S104, calculating the flow ratio of the main pipe section in the branch pipeline and the main pipe section in the main pipeline which are connected with the same water outlet end for shunting according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value.
And step S105, calculating the branch flow of each branch pipeline according to the ratio of the total water amount to the plurality of flows.
And S106, distributing the total water quantity to a plurality of branch pipelines according to the branch pipelines and the branch flow quantity.
Further, the plurality of branches are all connected in parallel to the same side of the main pipeline, the water inlet end of the main pipeline is one of the two ends of the main pipeline, and the step S104 specifically includes:
traversing from the end opposite to the water inlet end of the main pipeline, and calculating the flow ratio of the branch pipeline connected with the same water outlet end for shunting and the main pipeline section in the main pipeline according to a plurality of first total resistance coefficients, second total resistance coefficients and flow rate correction values.
It should be noted that, when calculating the flow ratio between the branch pipeline and the main pipeline segment, the calculation is started from the end opposite to the water inlet end of the main pipeline, that is, from the branch pipeline 7 and the main pipeline segment 8, until the flow ratio between the branch pipeline 1 and the main pipeline segment 2 is calculated, the branch flow of different branch pipelines can be accurately calculated, so as to facilitate subsequent rapid distribution.
Further, step S105 specifically includes:
and calculating the branch flow of each branch pipeline from the water inlet end of the main pipeline according to the ratio of the total water quantity to the plurality of flows.
It should be noted that, as shown in fig. 2 and fig. 3, in order to facilitate understanding of the water distribution method of the cooling tower provided in the present embodiment, the present embodiment provides a water distribution schematic diagram of the cooling tower, and the following detailed discussion is made with respect to fig. 2 to fig. 3 and the calculation derivation process:
as shown in fig. 2, 4, 6 and 8 respectively represent different main pipe segments in the main pipe, 1, 3, 5, 7 and 9 respectively represent different branch pipes, T, Q, M, N and R respectively represent the water outlet end of the main pipe, wherein T, Q, M and N are water outlet ends for branching.
The flow ratio of the branch pipeline 7 and the main pipeline section 8 is firstly obtained, then a pipeline 6 'is preset to be equal to the sum of the flow of the branch pipeline 7 and the flow of the main pipeline section 9, the total resistance coefficient of the pipeline 6' can be obtained, the flow ratio of the branch pipeline 5 and the flow ratio of the main pipeline section 6 can be obtained, and the flow ratio of the branch pipeline 3 and the main pipeline section 4 and the flow ratio of the branch pipeline 1 and the main pipeline section 2 are obtained in the same way and are circulated in sequence.
The calculation derivation process is as follows:
it should be noted that q is calculated for the first timem,8＝qm,9But q ism,4≠qm,5，qm,6≠qm,7Wherein q ismIs the flow rate.
For N points, the calculation formula of the ND branch is:
Figure BDA0003450607110000061
since the diameters of NR and RE tubes in the NE branch are not necessarily the same, it is assumed that the diameter of RE tube is the same as the diameter of NR tube.
The calculation formula of the NRE branch is as follows:
Figure BDA0003450607110000062
according to the above calculation formula, a representative formula of the ratio of the flow rates of the branch pipeline 7 and the main pipeline section 8 is obtained:
Figure BDA0003450607110000063
and the ratio of the flow rates of the branch conduit 7 and the main conduit segment 8:
Figure BDA0003450607110000064
to obtain the ratio of the flow rates of the branch conduit 7 and the main conduit segment 8
Figure BDA0003450607110000065
Calculating the total resistance coefficient Zeta of the preset pipeline 66', due to qm,6＝qm,7+qm,9，v6A6＝v7A7+v8A8The following equation can be derived:
Figure BDA0003450607110000071
thus solving for ζ6’。
Wherein, PNIs the total pressure at point N, ρ is the density of water, c1And c2Are flow rate correction values, v7Is the flow velocity, v, of the branch conduit 78For the flow rate of the main pipe section 8, ζ8Is the second total coefficient of resistance, ζ7And ζ9Are all the first total resistance coefficient，A6、A7、A8The cross-sectional area of the main tube section 6, the cross-sectional area of the branch conduit 7 and the cross-sectional area of the main tube section 8, respectively.
The ratio of the flow rates of the branch line 5 and the main line section 6 is determined in the same way
Figure BDA0003450607110000072
Ratio of the flow rates of the bypass line 3 and the main line section 4
Figure BDA0003450607110000073
Ratio of the flow rates of the bypass line 1 and the main line section 2
Figure BDA0003450607110000074
Due to the total water quantity qm,totalThe relationship between the branch pipeline 1 and the main pipeline section 2 is as follows:
Figure BDA0003450607110000075
qm,1＝qm,total-qm,2；
then the flow of the main pipe section 2 can be obtained, and the branch flow q of the branch pipeline 1 can be calculated according to the total water quantity and the flow of the main pipe section 2m,1. And repeating the steps until the branch flow of all branch pipelines is obtained so as to distribute the total water quantity to all branch pipelines.
Further, step S103 includes:
calculating a first cross-sectional area of each branch pipeline;
calculating the number of nozzles and the second cross-sectional area in each branch pipeline;
and calculating a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of the nozzles and the second cross-sectional area.
Further, calculating a flow rate correction value for each of the branch conduits based on the first cross-sectional area, the number of nozzles, and the second cross-sectional area includes:
and calculating a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of nozzles and the second cross-sectional area based on the first preset formula and the second preset formula. It should be noted that the water flow rate at the water spray of the cooling tower (i.e., where the static pressure is equal to the atmospheric pressure) is not the same as the flow rate of the water inlet pipe (i.e., the bypass pipe) of the cooling tower. The water distributor is provided with a plurality of water spraying nozzles, the water quantity of the water inlet pipeline needs to be uniformly distributed to each nozzle in the water distributor, and the corrected water flow speed is obtained. Therefore, it is necessary to calculate the corrected flow rate value, and the flow rate is the real required outlet flow rate. The specific calculation process is as follows:
calculating the nozzle flow velocity v based on a first preset formulai,nozzleThe first preset formula is:
Figure BDA0003450607110000081
calculating the flow rate correction value c based on a second preset formula, wherein the second preset formula is as follows:
Figure BDA0003450607110000082
wherein n is the number of nozzles, AiIs the cross-sectional area (i.e. first cross-sectional area) of the ith branch conduit, viThe flow rate of the ith branch pipe, AnozzleIs the cross-sectional area (i.e., the second cross-sectional area) of the nozzle.
In this embodiment, the ratio of the flow rates of each branch pipeline and each main pipeline section connected to the same water outlet end for splitting is calculated according to the first total resistance coefficient of each branch pipeline, the second total resistance coefficient of each main pipeline section in the main pipeline, and the flow rate correction value of each branch pipeline, and then the branch flow rate of each branch pipeline is calculated according to the ratio of the total water flow rate and the flow rate, so as to distribute the total water flow rate to a plurality of branch pipelines, and the total resistance coefficient is adopted when calculating the flow rate ratio, thereby not only reducing the variables to be calculated, but also quickly and accurately calculating the water amount to be distributed by each branch pipeline, not only solving the technical problem of accurately calculating and distributing the water amount of the cooling tower, and more importantly, accurately calculating the actual water inflow rate of each cooling tower according to the resistance characteristics of the water inlet pipeline of the cooling tower, thereby calculating the thermal performance of the cooling tower, and providing basis for predicting the outlet water temperature and the heat dissipation capacity of the cooling tower.
The above is a detailed description of an embodiment of a water distribution method for a cooling tower provided by the present application, and the following is a detailed description of an embodiment of a water distribution device for a cooling tower provided by the present application, and a water distribution device for a cooling tower described below and a water distribution method for a cooling tower described above may be referred to in correspondence.
Referring to fig. 4, an embodiment of the present application provides a water distribution device for a cooling tower, including:
the first obtaining unit 301 is configured to obtain a total water amount at a water inlet end of the main pipeline.
The second obtaining unit 302 is configured to obtain a first total resistance coefficient of the branch pipeline and a second total resistance coefficient of each main pipeline segment in the main pipeline.
The first calculating unit 303 is configured to calculate a flow rate correction value for each branch pipe.
And a second calculating unit 304, configured to calculate, according to the plurality of first total resistance coefficients, the second total resistance coefficient, and the flow rate correction value, a ratio of flows of the main pipe segments in the branch pipe and the main pipe connected to the same water outlet end for splitting.
And a third calculating unit 305, configured to calculate a branch flow rate of each branch pipe according to the total water amount and a ratio of the plurality of flow rates.
And the distribution unit 306 is used for distributing the total water quantity to the branch pipelines according to the branch pipelines and the branch flow quantity.
Furthermore, the plurality of branch circuits are all connected in parallel to the same side of the main pipeline, and the water inlet end of the main pipeline is one of the two ends of the main pipeline.
The second calculating unit 304 is specifically configured to traverse from an end opposite to the water inlet end of the main pipeline, and calculate a ratio of flows of the main pipeline segments in the branch pipeline and the main pipeline segment in the main pipeline, which are connected to the same water outlet end for splitting, according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow rate correction value.
Further, the third calculating unit 305 is specifically configured to calculate, from the water inlet end of the main branch pipeline, the branch flow rate of each branch pipeline according to the ratio between the total water amount and the multiple flow rates.
Further, the first calculation unit 303 includes:
and the first calculating subunit is used for calculating the first cross-sectional area of each branch pipeline.
And the second calculating subunit is used for calculating the number of the nozzles in each branch pipeline and the second cross-sectional area.
And a third calculating subunit for calculating a flow rate correction value for each branch conduit based on the first cross-sectional area, the number of nozzles, and the second cross-sectional area.
Further, the third calculating subunit is specifically configured to calculate, based on the first preset formula and the second preset formula, a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of nozzles, and the second cross-sectional area;
the first preset formula is:
Figure BDA0003450607110000091
the second preset formula is:
Figure BDA0003450607110000092
wherein c is a flow rate correction value, n is the number of nozzles, AiIs the first cross-sectional area, v, of the ith branch conduitiThe flow rate of the ith branch pipe, AnozzleThe second cross-sectional area of the nozzle.
Fig. 5 illustrates a physical structure diagram of an electronic device. As shown in fig. 5, the present invention also provides an electronic device, which may include: a processor (processor)310, a Communication Interface (Communication Interface)320, a memory (memory)330 and a Communication bus 340, wherein the processor 310, the Communication Interface 320 and the memory 330 complete the Communication with each other through the Communication bus 340. The processor 310 may invoke computer programs in the memory 330 to perform the steps of a method of water distribution for a cooling tower, including, for example:
acquiring the total water quantity of a water inlet end of a main pipeline;
acquiring a first total resistance coefficient of a branch pipeline and a second total resistance coefficient of each main pipeline section in a main pipeline;
calculating the flow velocity correction value of each branch pipeline;
calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main pipeline according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value;
calculating the branch flow of each branch pipeline according to the ratio of the total water amount to the plurality of flow rates;
and distributing the total water quantity to a plurality of branch pipelines according to the branch pipelines and the branch flow.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
On the other hand, embodiments of the present application further provide a computer-readable storage medium, where a processor-readable storage medium stores a computer program, where the computer program is configured to cause a processor to perform the steps of the method provided in each of the above embodiments, for example, including:
acquiring the total water quantity of a water inlet end of a main pipeline;
acquiring a first total resistance coefficient of a branch pipeline and a second total resistance coefficient of each main pipeline section in a main pipeline;
calculating the flow velocity correction value of each branch pipeline;
calculating the flow ratio of the branch pipeline connected with the same water outlet end for shunting and the main pipeline section in the main pipeline according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value;
calculating the branch flow of each branch pipeline according to the ratio of the total water amount to the plurality of flow rates;
and distributing the total water quantity to a plurality of branch pipelines according to the branch pipelines and the branch flow.
The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. A water distribution method for a cooling tower, the method being applied to a cooling tower apparatus in a cold source system, the cooling tower apparatus including a cooling tower, a branch pipe and a main pipe, the main pipe being provided with a plurality of water outlet ends, the branch pipe being connected to the cooling tower to form a branch, the branch being connected to the water outlet ends so that the plurality of branch pipes are connected in parallel to the main pipe, the water distribution method comprising:
acquiring the total water quantity of the water inlet end of the main pipeline;
acquiring a first total resistance coefficient of the branch pipeline and a second total resistance coefficient of each main pipeline section in the main pipeline;
calculating the flow rate correction value of each branch pipeline;
calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main pipeline according to the first total resistance coefficients, the second total resistance coefficients and the flow speed correction value;
calculating the branch flow of each branch pipeline according to the ratio of the total water amount to the flow;
and distributing the total water quantity to a plurality of branch pipelines according to the branch pipelines and the branch flow quantity.
2. The method of claim 1, wherein the plurality of branch circuits are connected in parallel to the same side of the main circuit pipe, and the water inlet end of the main circuit pipe is one of the two ends of the main circuit pipe;
the calculating the flow ratio of the branch pipeline connected with the same water outlet end for shunting and the main pipeline section in the main pipeline according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value comprises:
traversing from the end opposite to the water inlet end of the main path pipeline, and calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main path pipeline according to a plurality of first total resistance coefficients, second total resistance coefficients and the flow speed correction value.
3. The method of claim 2, wherein said calculating a branch flow rate of each of said branch pipes according to a ratio between said total water flow rate and a plurality of said flow rates comprises:
and calculating the branch flow of each branch pipeline from the water inlet end of the main pipeline according to the ratio of the total water quantity to the plurality of flows.
4. The method of claim 1, wherein said calculating a flow rate correction for each of said branch conduits comprises:
calculating a first cross-sectional area of each of the branch conduits;
calculating the number of nozzles and the second cross-sectional area in each branch pipeline;
and calculating a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of the nozzles and the second cross-sectional area.
5. The method of claim 4, wherein said calculating a flow correction value for each of said branch conduits based on said first cross-sectional area, said number of nozzles, and said second cross-sectional area comprises:
calculating a flow rate correction value of each branch pipeline according to the first cross-sectional area, the number of the nozzles and the second cross-sectional area based on a first preset formula and a second preset formula;
the first preset formula is as follows:
Figure FDA0003450607100000021
the second preset formula is as follows:
Figure FDA0003450607100000022
wherein c is a flow rate correction value, n is the number of nozzles, AiIs the first cross-sectional area, v, of the ith branch conduitiThe flow rate of the ith branch pipe, AnozzleThe second cross-sectional area of the nozzle.
6. A water distribution device for a cooling tower, comprising:
the first acquisition unit is used for acquiring the total water quantity of the water inlet end of the main pipeline;
the second acquiring unit is used for acquiring a first total resistance coefficient of the branch pipeline and a second total resistance coefficient of each main pipeline section in the main pipeline;
the first calculation unit is used for calculating the flow rate correction value of each branch pipeline;
the second calculation unit is used for calculating the flow ratio of a branch pipeline connected with the same water outlet end for shunting and a main pipeline section in the main pipeline according to the plurality of first total resistance coefficients, the second total resistance coefficients and the flow speed correction value;
the third calculating unit is used for calculating the branch flow of each branch pipeline according to the ratio of the total water quantity to the flow;
and the distribution unit is used for distributing the total water quantity to the branch pipelines according to the branch pipelines and the branch flow quantity.
7. An electronic device comprising a processor and a memory storing a computer program, wherein the processor when executing the computer program performs the steps of the method of water distribution for a cooling tower according to any one of claims 1 to 5.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for water distribution for a cooling tower according to any one of claims 1 to 5.
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