Water supplementing method and system for circulating cooling water system of thermal power plant and electronic equipment

Abstract

The invention relates to a water replenishing method and system for a circulating cooling water system of a thermal power plant and electronic equipment. The method comprises the following steps: acquiring lost water quantity and liquid level change data of the circulating cooling water system of the thermal power plant; determining the water supplementing amount of the circulating cooling water system of the thermal power plant according to the lost water amount and the liquid level change data; and supplementing water to the circulating cooling water system of the thermal power plant according to the water supplementing amount. According to the method, automatic water replenishing of the thermal power plant circulating water system is achieved, the intelligent control level of the circulating water system is improved, and the labor intensity of workers is relieved; the water supplementing proportion can be accurately controlled in real time, the stability of the water supplementing quality is guaranteed, and the corrosion and scaling risks possibly caused by short-time violent fluctuation of the water supplementing quality are avoided; real-time equivalent water replenishing is achieved, it is guaranteed that the liquid level of the cooling tower pool is stable, and waste caused by overflow of the cooling tower pool or harm to safe operation of a generator set due to too low liquid level is avoided.

Description

Technical Field

[0001] This invention relates to the field of circulating water technology in thermal power plants, and particularly to a method, system, and electronic equipment for replenishing water in a circulating cooling water system of a thermal power plant. Background Technology

[0002] The replenishment of circulating cooling water systems in thermal power plants is crucial to the safe and stable operation of generator units. Excessive replenishment will waste water resources, while insufficient replenishment will threaten the safe operation of circulating water pumps. Currently, the mainstream methods for replenishing circulating cooling water systems in thermal power plants all have different limitations, as detailed below.

[0003] (1) Manual water replenishment: The water replenishment valve is manually switched on and off according to the liquid level of the circulating water tower. The water replenishment volume is extremely unstable when this method is used, which is not conducive to the control of circulating water quality and the labor intensity of personnel is relatively high.

[0004] (2) Semi-automatic water replenishment: The water replenishment valve is automatically switched on and off according to the liquid level of the tower pool. However, the water replenishment valve is either fully open or fully closed, the water replenishment volume is unstable, and it is impossible to replenish water in real time according to the water replenishment ratio specified in the dynamic simulation test of circulating water, which is not conducive to the control of circulating water quality. Summary of the Invention

[0005] This invention provides a method, system, and electronic equipment for replenishing water in a circulating cooling water system of a thermal power plant, in order to overcome at least one of the above-mentioned technical problems existing in the prior art.

[0006] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: In a first aspect, the present invention provides a method for replenishing water in a circulating cooling water system of a thermal power plant, comprising: Acquire data on water loss and liquid level changes in the circulating cooling water system of a thermal power plant. The amount of water to be replenished for the circulating cooling water system of the thermal power plant is determined based on the water loss and the liquid level change data. The circulating cooling water system of the thermal power plant is replenished according to the stated replenishment amount.

[0007] In one possible implementation of the first aspect, the water loss includes evaporation loss, wind loss, total recycled water volume, and wastewater discharge volume.

[0008] In one possible implementation of the first aspect, obtaining the water loss of the circulating cooling water system of the thermal power plant includes: Obtain the flow rate of circulating water on the upper tower of the circulating cooling water system in a thermal power plant; The evaporation loss is determined using the following formula: ; in, Evaporation loss; Temperature coefficient; Temperature difference between the inlet and outlet water of the cooling tower; : Flow rate of circulating water on the tower.

[0009] In one possible implementation of the first aspect, obtaining the water loss of the circulating cooling water system of the thermal power plant includes: Obtain the flow rate of circulating water on the upper tower of the circulating cooling water system in a thermal power plant; The amount of wind loss is determined using the following formula: ; in, Wind damage; Wind loss rate; : Flow rate of circulating water on the tower.

[0010] In one possible implementation of the first aspect, obtaining the water loss of the circulating cooling water system of the thermal power plant includes: Obtain the reclaimed water volume for each type of circulating cooling water system in a thermal power plant; The total recycled water consumption is determined using the following formula: ; in, Total recycled water volume; : The i-th type of recycled water volume in the circulating cooling water system of a thermal power plant.

[0011] In one possible implementation of the first aspect, the liquid level change data comprises multiple sets, and determining the makeup water volume of the power plant's circulating cooling water system based on the water loss and the liquid level change data includes: Based on the liquid level change data, a correction coefficient is obtained using a gain scheduling strategy. The makeup water volume of the thermal power plant's circulating cooling water system is determined based on the correction coefficient and the water loss.

[0012] In one possible implementation of the first aspect, obtaining the correction coefficient using a gain scheduling strategy based on the liquid level change data includes: Calculate the average value of the liquid level change data; Compare the average value with the preset target value. If: If the average value equals the target value, then the correction coefficient is 1. If the average value is less than the target value, then a value between 1.01 and 1.50 is selected as the correction coefficient based on the difference between the average value and the target value. If the average value is greater than the target value, then a value between 0.5 and 0.99 is selected as the correction coefficient based on the difference between the average value and the target value.

[0013] In one possible implementation of the first aspect, the circulating cooling water system of the thermal power plant includes multiple water replenishment units, and the step of replenishing the circulating cooling water system of the thermal power plant according to the replenishment amount includes: Based on the stated water replenishment amount, the water replenishment ratio of each water replenishment unit is adjusted to replenish the circulating cooling water system of the thermal power plant.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The water replenishment method for the circulating cooling water system of thermal power plants provided by this invention realizes automatic water replenishment for the circulating water system of thermal power plants. Under normal circumstances, no human intervention is required, which improves the intelligent control level of the circulating water system and reduces the labor intensity of personnel.

[0015] Furthermore, the water replenishment method for the circulating cooling water system of thermal power plants provided by this invention can accurately control the water replenishment ratio in real time, ensuring stable water quality and avoiding the risk of corrosion and scaling that may be caused by drastic fluctuations in water quality over a short period of time. Furthermore, the water replenishment method for the circulating cooling water system of thermal power plants provided by this invention enables real-time equal-volume water replenishment, ensuring stable cooling tower pool liquid level and avoiding overflow of cooling tower pool causing waste or excessively low liquid level jeopardizing the safe operation of generator units.

[0016] Secondly, the present invention provides a makeup water system for a circulating cooling water system in a thermal power plant, comprising: The acquisition module is used to acquire data on water loss and liquid level changes in the circulating cooling water system of a thermal power plant. The analysis module is used to determine the makeup water volume of the circulating cooling water system of the thermal power plant based on the water loss and the liquid level change data. An execution module is used to replenish water to the circulating cooling water system of the thermal power plant according to the replenishment amount.

[0017] Thirdly, the present invention provides an electronic device, comprising: a memory and one or more processors; the memory being coupled to the processors; wherein the memory stores computer program code, the computer program code including computer instructions, which, when executed by the processor, cause the electronic device to perform water replenishment for the circulating cooling water system of a thermal power plant in any implementation of the first aspect.

[0018] Fourthly, the present invention provides a storage medium storing a computer-executable program, characterized in that the computer-executable program is used to cause a computer to execute the water replenishment method for a circulating cooling water system in a thermal power plant according to any implementation of the first aspect.

[0019] Understandably, the beneficial effects achieved by the system of the second aspect, the electronic device of the third aspect, and the storage medium of the fourth aspect provided above can be referred to in light of the beneficial effects of the first aspect and any of its possible design embodiments, which will not be repeated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention; Figure 2 A flowchart illustrating a method for replenishing water in a circulating cooling water system of a thermal power plant, provided by an embodiment of the present invention; Figure 3 This is a structural block diagram of a water replenishment system for a circulating cooling water system in a thermal power plant, provided as an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings. In the description of the present invention, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. The "or" in the present invention is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A or B can represent: A alone, A and B simultaneously, and B alone. A and B can be singular or plural. Furthermore, in the description of the present invention, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.

[0023] Furthermore, to facilitate a clear description of the technical solutions of the embodiments of the present invention, the terms "first" and "second" are used in the embodiments of the present invention to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0024] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as superior or more advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner for ease of understanding.

[0025] The replenishment of circulating cooling water systems in thermal power plants is crucial to the safe and stable operation of generator units. Excessive replenishment will waste water resources, while insufficient replenishment will threaten the safe operation of circulating water pumps. Currently, the mainstream methods for replenishing circulating cooling water systems in thermal power plants all have different limitations, as detailed below.

[0026] (1) Manual water replenishment: The water replenishment valve is manually switched on and off according to the liquid level of the circulating water tower. The water replenishment volume is extremely unstable when this method is used, which is not conducive to the control of circulating water quality and the labor intensity of personnel is relatively high.

[0027] (2) Semi-automatic water replenishment: The water replenishment valve is automatically switched on and off according to the liquid level of the tower pool. However, the water replenishment valve is either fully open or fully closed, the water replenishment volume is unstable, and it is impossible to replenish water in real time according to the water replenishment ratio specified in the dynamic simulation test of circulating water, which is not conducive to the control of circulating water quality.

[0028] In view of this, on the one hand, embodiments of the present invention provide a method for replenishing water in a circulating cooling water system of a thermal power plant, comprising: acquiring data on water loss and liquid level change in the cooling water tower pool of the circulating cooling water system of the thermal power plant; determining the replenishment amount of the circulating cooling water system of the thermal power plant based on the water loss and the liquid level change data; and replenishing the circulating cooling water system of the thermal power plant based on the replenishment amount.

[0029] The water replenishment method for the circulating cooling water system of thermal power plants provided in this embodiment of the invention realizes automatic water replenishment for the circulating water system of thermal power plants. Under normal circumstances, no human intervention is required, which improves the intelligent control level of the circulating water system and reduces the labor intensity of personnel.

[0030] In some embodiments, the water replenishment method for a circulating cooling water system in a thermal power plant provided by the present invention can be executed by any electronic device 20 with data processing capabilities, such as a general-purpose computer, personal computer, laptop computer, switch, or tablet computer, etc. The specific implementation of the electronic device 20 is not limited here.

[0031] Figure 1 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present invention is shown. The electronic device 20 includes a processor 210, a memory 220, and a communication interface 230.

[0032] Processor 210 may include one or more processing cores. Processor 210 connects to various parts within electronic device 20 using various interfaces and lines, and performs various functions and processes data of electronic device 20 by running or executing instructions, programs, code sets, or instruction sets stored in memory 220, and by calling data stored in memory 220. Optionally, processor 210 may be implemented using at least one of the following hardware forms: Central Processing Unit (CPU), Graphics Processing Unit (GPU), Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA).

[0033] The memory 220 may include random access memory (RAI) or read-only memory (ROI). Optionally, the memory 220 may include non-transitory computer-readable storage ledger. The memory 220 may be used to store instructions, programs, code, code sets, or instruction sets. The memory 220 may include a stored program area. The stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as data processing functions, data storage functions, and display push functions), and instructions for implementing the various method embodiments described above.

[0034] Communication interface 230 is used to communicate with other devices, equipment or communication networks, such as data storage devices, image processing devices or Ethernet, wireless access network (RAN), wireless local area network (WLAN), etc.

[0035] In terms of physical implementation, the aforementioned devices (such as processor 210, memory 220, and communication interface 230) can each be devices within the same device (such as a laptop computer). Alternatively, at least two of these devices can be located within the same device, i.e., as different devices within the same device, similar to the deployment of devices or components in a distributed system.

[0036] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the electronic device 20. In other embodiments of the present invention, the electronic device 20 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0037] The following description, in conjunction with the accompanying drawings, illustrates a method for replenishing water in a circulating cooling water system of a thermal power plant, as provided in an embodiment of the present invention.

[0038] like Figure 2 As shown in the figure, an embodiment of the present invention provides a method for replenishing water in a circulating cooling water system of a thermal power plant, comprising: Step S1: Obtain data on water loss in the circulating cooling water system of the thermal power plant and changes in the liquid level of the cooling water tower pool.

[0039] In specific implementation, embodiments of the present invention can install high-precision electromagnetic flowmeters on all water supply, drainage, and reclaimed water pipelines of the circulating cooling water system in thermal power plants to monitor the water supply and drainage volumes in real time. Level gauges are installed in the cooling water tower pool to monitor the changes in the cooling water level. Thermometers are installed at the inlet and outlet of the circulating cooling water in the cooling water tower pool to monitor the inlet and outlet water temperatures.

[0040] In specific implementation, embodiments of the present invention may also install an environmental monitoring device near the cooling water tower pool of the circulating cooling water system in a thermal power plant to monitor the environmental data of the cooling tower pool in real time, including but not limited to temperature and humidity. Of course, embodiments of the present invention may also directly connect to the network and use local real-time environmental data released by the meteorological bureau, which is not limited here.

[0041] In the specific implementation process, the flow rate of circulating water to the tower is related to the operating mode of the circulating water pump. The embodiments of the present invention can, but are not limited to, use a portable flow meter to measure the water flow rate of the circulating water pump under various operating conditions, and integrate it into the control system. The control system automatically retrieves the flow rate according to the operating mode of the circulating water pump.

[0042] In one feasible implementation, the water loss in the embodiments of the present invention may include, but is not limited to, evaporation loss, wind loss, total recycled water volume, and wastewater discharge volume.

[0043] In specific implementation, the cooling tower pool in this embodiment of the invention may, but is not limited to, an open-type cooling tower pool. The wastewater volume in this embodiment of the invention is only generated during wastewater discharge. When no wastewater discharge is performed, the evaporation loss, the wind loss, and the total recycled water volume only need to be determined based on the circulating water flow rate on the tower. The wastewater volume in this embodiment of the invention is directly obtained using a high-precision electromagnetic flowmeter installed on the drain pipe.

[0044] In one feasible implementation, the method for obtaining the water loss of the circulating cooling water system in a thermal power plant, as described in this embodiment of the invention, may include, but is not limited to: Obtain the flow rate of circulating water on the upper tower of the circulating cooling water system in a thermal power plant; The evaporation loss is determined using the following formula: ; in, Evaporation loss, unit: m³ 3 / h; Temperature coefficient, unit: 1 / ℃; Cooling tower inlet and outlet water temperature difference, unit: °C; Circulating water flow rate in the tower, unit: m³ 3 / h.

[0045] In the specific implementation process, the temperature coefficient in the embodiments of the present invention is selected according to Table 1.

[0046] Table 1 Temperature Coefficient In one feasible implementation, the method for obtaining the water loss of the circulating cooling water system in a thermal power plant, as described in this embodiment of the invention, may include, but is not limited to: Obtain the flow rate of circulating water on the upper tower of the circulating cooling water system in a thermal power plant; The amount of wind loss is determined using the following formula: ; in, Wind loss, unit: m 3 / h; Wind loss rate; Circulating water flow rate in the tower, unit: m³ 3 / h.

[0047] In the specific implementation process, the wind loss rate in the embodiments of the present invention is selected according to Table 2. Table 2 Wind loss rate In one feasible implementation, the method for obtaining the water loss of the circulating cooling water system in a thermal power plant, as described in this embodiment of the invention, may include, but is not limited to: Obtain the reclaimed water volume for each type of circulating cooling water system in a thermal power plant; The total recycled water consumption is determined using the following formula: ; in, Total recycled water volume, unit: m³ 3 / h; The i-th type of reclaimed water volume in the circulating cooling water system of a thermal power plant, in m³. 3 / h.

[0048] It should be noted that the total recycled water volume of the circulating cooling water system in the thermal power plant in this embodiment of the invention refers to the amount of cooling water consumed in the entire circulating cooling water system loop. For example, some equipment requires spray cooling, and this loop directly consumes cooling water. This consumed cooling water will not return to the cooling tower pool. Since there are multiple loops that consume cooling water, there are multiple recycled water volumes. The sum of the water consumption of these cooling water-consuming loops is the total recycled water volume.

[0049] In specific implementation, embodiments of the present invention may, but are not limited to, directly obtain the amount of each type of recycled water by setting a flow meter on each loop.

[0050] Step S2: Determine the makeup water volume of the power plant's circulating cooling water system based on the water loss and the liquid level change data.

[0051] The water loss mentioned in this embodiment of the invention is the theoretical total water replenishment, as detailed below: ; in, Theoretical total water replenishment, unit: m³ 3 / h; Wastewater discharge from the circulating water system, unit: m³ 3 / h.

[0052] In the specific implementation process, considering factors such as rainfall or unknown leaks in the circulating cooling water system, this embodiment of the invention installs a level gauge in the cooling water tower pool to monitor the changes in the liquid level of the cooling water tower pool, and then determines the actual replenishment amount of the circulating cooling water system of the thermal power plant based on the water loss and the liquid level change data.

[0053] In one feasible implementation, the liquid level change data in this embodiment of the invention comprises multiple sets. The amount of water replenishment for the power plant's circulating cooling water system is determined based on the water loss and the liquid level change data, and may include, but is not limited to: Based on the liquid level change data, a correction coefficient is obtained using a gain scheduling strategy. The makeup water volume of the thermal power plant's circulating cooling water system is determined based on the correction coefficient and the water loss.

[0054] It should be noted that the liquid level change data in the embodiments of the present invention can be obtained by comparing the liquid level values ​​of the cooling tower pool within a unit time period by collecting the liquid level value by a liquid level gauge, and calculating the difference to finally obtain the liquid level change data.

[0055] In the specific implementation process, this embodiment of the invention uses multiple level gauges to acquire the liquid level change data of the cooling water tower pool, avoiding the impact of level monitoring due to faulty level gauges. If a level gauge has a faulty level, the relevant data is automatically discarded and not included in the subsequent calculation of water replenishment. If all level gauges have faulty level, an alarm message is sent to the operation and maintenance terminal so that maintenance personnel can repair and handle the problem in a timely manner, ensuring the safe and stable operation of the generator set.

[0056] In the specific implementation process, the liquid level value of the cooling tower pool collected by the liquid level gauge in this embodiment of the invention can also send alarm information to the operation and maintenance terminal in a timely manner when the liquid level of the cooling tower pool exceeds the upper limit or falls below the lower limit, so that the operation and maintenance personnel can drain or replenish water in time to ensure the safe and stable operation of the generator set.

[0057] In one feasible implementation, the step of obtaining the correction coefficient based on the liquid level change data using a gain scheduling strategy in this embodiment of the invention may include, but is not limited to: Calculate the average value of the liquid level change data; Compare the average value with the preset target value. If: If the average value equals the target value, then the correction coefficient is 1. If the average value is less than the target value, then a value between 1.01 and 1.50 is selected as the correction coefficient based on the difference between the average value and the target value. If the average value is greater than the target value, then a value between 0.5 and 0.99 is selected as the correction coefficient based on the difference between the average value and the target value.

[0058] It should be noted that the target value in the embodiments of the present invention may be, but is not limited to, 0.

[0059] Step S3: Add water to the circulating cooling water system of the thermal power plant according to the amount of water to be added.

[0060] In one feasible implementation, the circulating cooling water system of the thermal power plant in this embodiment of the invention includes multiple water replenishment units, and the step of replenishing the circulating cooling water system of the thermal power plant according to the replenishment amount includes: Based on the stated water replenishment amount, the water replenishment ratio of each water replenishment unit is adjusted to replenish the circulating cooling water system of the thermal power plant.

[0061] In the specific implementation process, the water quality of each water replenishment unit in the embodiments of the present invention is different. Some water sources may be recycled water that has been used by other equipment and reused, some water sources may be municipal water supply, and some water sources may be natural water bodies (such as rivers and lakes). Therefore, the water quality of each water replenishment unit is different. By adjusting the water replenishment ratio of each water replenishment unit by adjusting the water replenishment amount, the water quality can be kept stable.

[0062] The water replenishment method for the circulating cooling water system of thermal power plants provided in this embodiment of the invention realizes automatic water replenishment for the circulating water system of thermal power plants. Under normal circumstances, no human intervention is required, which improves the intelligent control level of the circulating water system and reduces the labor intensity of personnel.

[0063] Furthermore, the water replenishment method for the circulating cooling water system of a thermal power plant provided in this embodiment of the invention can accurately control the water replenishment ratio in real time, ensuring stable water quality and avoiding the risk of corrosion and scaling that may be caused by drastic fluctuations in water quality over a short period of time. Furthermore, the water replenishment method for the circulating cooling water system of a thermal power plant provided in this embodiment of the invention enables real-time equal-volume water replenishment, ensuring a stable liquid level in the cooling tower pool and preventing overflow of the cooling tower pool that could lead to waste or excessively low liquid levels that could endanger the safe operation of the generator unit.

[0064] Based on the above-mentioned method for replenishing water in a thermal power plant's circulating cooling water system provided in the first aspect, embodiments of the present invention provide a water replenishment system for a thermal power plant's circulating cooling water system, such as... Figure 3 As shown, the makeup water system of the circulating cooling water system in the thermal power plant includes: The acquisition module 110 is used to acquire data on water loss and liquid level changes in the cooling water tower pool of the thermal power plant's circulating cooling water system. Analysis module 120 is used to determine the makeup water volume of the circulating cooling water system of the thermal power plant based on the water loss and the liquid level change data; The execution module 130 is used to replenish the circulating cooling water system of the thermal power plant according to the replenishment amount.

[0065] Based on the above-described method for replenishing water in a circulating cooling water system of a thermal power plant as provided in the first aspect, this embodiment of the invention also provides a storage medium storing a computer-executable program. The computer-executable program is used to cause a computer to execute the method for replenishing water in a circulating cooling water system of a thermal power plant as described in any implementation of the first aspect. Explanations of the relevant content and descriptions of the beneficial effects of any of the computer-readable storage media provided above can be found in the corresponding embodiments described above, and will not be repeated here.

[0066] Those skilled in the art will understand that the program for implementing all or part of the steps of the above embodiments, which can be executed by a program instructing related hardware, can be stored in a computer-readable storage medium. The storage medium mentioned above can be a read-only memory, a random access memory, etc. The processing unit or processor mentioned above can be a central processing unit, a general-purpose processor, an application-specific integrated circuit (ASIC), a microprocessor (DSP), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.

[0067] This invention also provides a computer program product containing instructions that, when executed on a computer, cause the computer to perform any of the methods described in the above embodiments. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this invention is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., SSD), etc.

[0068] It should be noted that the devices for storing computer instructions or computer programs provided in the embodiments of the present invention, such as, but not limited to, the aforementioned memory, computer-readable storage medium, and communication chip, are all non-transitory. Those skilled in the art should recognize that the functions described in the embodiments of the present invention in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable storage medium or transmitted as one or more instructions or code on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein communication media include any medium that facilitates the transmission of computer programs from one place to another. Storage media can be any available medium accessible to general-purpose or special-purpose computers.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method of making up a circulating cooling water system of a thermal power plant, characterized in that, The method comprises the following steps: acquiring loss water quantity of a circulating cooling water system of a thermal power plant and liquid level change data of a cooling water tower pool; determining water supplement quantity of the circulating cooling water system of the thermal power plant according to the loss water quantity and the liquid level change data; supplementing water to the circulating cooling water system of the thermal power plant according to the water supplement quantity.

2. The method of claim 1, wherein the method further comprises: The loss water quantity comprises evaporation loss quantity, wind blow loss quantity, total reuse water quantity and blowdown water quantity.

3. The method of claim 2, wherein the water is added to the circulating cooling water system of the thermal power plant at a location downstream of the cooling tower. The acquiring of the loss water quantity of the circulating cooling water system of the thermal power plant comprises the following steps: acquiring circulating water on-tower flow of the circulating cooling water system of the thermal power plant; determining the evaporation loss quantity by the following calculation formula: ； wherein, : amount of evaporation loss; : air temperature coefficient; : temperature difference between inlet and outlet water of cooling tower; : flow rate of circulating water on tower.

4. The method of claim 2, wherein the water is added to the circulating cooling water system of the thermal power plant. The acquiring of the loss water quantity of the circulating cooling water system of the thermal power plant comprises the following steps: acquiring circulating water on-tower flow of the circulating cooling water system of the thermal power plant; determining the wind blow loss quantity by the following calculation formula: ； wherein, : wind blow loss amount; : wind blow loss rate; : circulating water up-tower flow rate.

5. The method of claim 2, wherein the water is added to the circulating cooling water system of the thermal power plant at a rate of 0.1% to 5% of the volume of the circulating cooling water system. The acquiring of the loss water quantity of the circulating cooling water system of the thermal power plant comprises the following steps: acquiring each reuse water quantity of the circulating cooling water system of the thermal power plant; determining the total reuse water quantity by the following calculation formula: ； wherein, : total amount of recycled water; : amount of the i-th recycled water of the circulating cooling water system of the thermal power plant.

6. The method of claim 1, wherein the method further comprises: The liquid level change data has multiple groups, and the determining of the water supplement quantity of the circulating cooling water system of the thermal power plant according to the loss water quantity and the liquid level change data comprises the following steps: obtaining a correction coefficient by using a gain scheduling strategy according to the liquid level change data; determining the water supplement quantity of the circulating cooling water system of the thermal power plant according to the correction coefficient and the loss water quantity.

7. The method of claim 6, wherein the step of determining the amount of make-up water is performed by a computer program. The obtaining of the correction coefficient by using the gain scheduling strategy according to the liquid level change data comprises the following steps: calculating average value of the liquid level change data; comparing the average value with a preset target value, if: the average value = the target value, the correction coefficient is 1; the average value < the target value, selecting a value in 1.01-1.50 as the correction coefficient based on the difference between the average value and the target value; the average value > the target value, selecting a value in 0.50-0.99 as the correction coefficient based on the difference between the average value and the target value.

8. The method of claim 1, wherein the method further comprises: The circulating cooling water system of the thermal power plant comprises multiple water supplement units, and the supplementing of water to the circulating cooling water system of the thermal power plant according to the water supplement quantity comprises the following steps: adjusting water supplement proportion of each water supplement unit according to the water supplement quantity to supplement water to the circulating cooling water system of the thermal power plant.

9. A make-up water system for a circulating cooling water system of a thermal power plant, characterized in that, The method comprises the following steps: an acquiring module, configured to acquire loss water quantity of a circulating cooling water system of a thermal power plant and liquid level change data of a cooling water tower pool; an analyzing module, configured to determine water supplement quantity of the circulating cooling water system of the thermal power plant according to the loss water quantity and the liquid level change data; an executing module, configured to supplement water to the circulating cooling water system of the thermal power plant according to the water supplement quantity.

10. An electronic device, comprising: The method comprises the following steps: a memory and one or more processors; the memory is coupled with the processors; wherein the memory stores computer program codes, the computer program codes comprise computer instructions, when the computer instructions are executed by the processors, the electronic device executes the circulating cooling water system water supplement of the thermal power plant in any one of claims 1 to 8.

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