Winter circulating water temperature regulation and control system and method for wet cooling unit

Abstract

The invention discloses a winter circulating water temperature regulation and control system and method for a wet cooling unit, and relates to the technical field of water temperature regulation and control. The winter circulating water temperature regulation and control system comprises a cooling tower water spraying ventilation area control device, an upper tower bypass door opening degree monitoring device, a load monitoring device, a circulating water pump high-low speed switching monitoring device, a temperature monitoring device and a control unit; the cooling tower water spraying ventilation area control device is installed on a cooling tower site and used for adjusting the water spraying ventilation area of the cooling tower. The upper tower bypass door opening monitoring device is connected to an upper tower bypass door and is used for collecting opening data; the load monitoring device is connected to the wet cooling unit and used for collecting load data. The circulating water pump high-low speed switching monitoring device is connected to the circulating water pump and used for detecting the operation state. The temperature monitoring device is arranged at a water inlet / outlet of the cooling tower and an environment position and is used for acquiring temperature data and transmitting the temperature data to the control unit; and the control unit is used for receiving data from each monitoring device. The operation safety and economical efficiency of the wet cooling unit in winter are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water temperature control, and in particular to a system and method for controlling the temperature of circulating water of a wet cooling unit in winter. Background Art

[0002] In recent years, the overall ambient temperature in Lanzhou City has been changeable in winter, and the intermittent cold air has caused the ambient temperature in the city to fluctuate greatly. Lanzhou City is a northern city with a large temperature difference between morning and evening. The temperature variability has caused the circulating water temperature of the #1 and #2 units of Huaneng Lanzhou Fanping Thermal Power Co., Ltd. to change frequently and fluctuate greatly during the winter operation. The circulating water temperature of the unit directly affects the vacuum and load connection capacity of the unit and the economic efficiency of the unit operation. In the face of the above problems, Fanping Thermal Power Company can only adjust the circulating water temperature and prevent the freezing of the cooling tower by hanging (removing) the antifreeze plate of the cooling tower during the winter heating period. This method not only requires a lot of labor and a lot of time, but also has the safety hazard of falling from a high altitude when setting up the antifreeze plate. In extreme weather, it is impossible to install and remove the antifreeze plate. The above situation leads to the inflexibility of the control of the circulating water temperature of the unit and serious lag. If the load connection of the unit is affected, the third circulating water pump will be forced to start to increase the vacuum, which increases the power consumption rate of the plant. In view of the above problems, it is urgent to study a winter circulating water temperature control technology for wet cooling units. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the present invention provides a system and method for regulating the circulating water temperature of a wet cooling unit in winter, which can solve the problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides a winter circulating water temperature control system for a wet cooling unit, which comprises a cooling tower water spraying and ventilation area control device, an upper tower bypass door opening monitoring device, a load monitoring device, a circulating water pump high and low speed switching monitoring device, a temperature monitoring device and a control unit;

[0008] The cooling tower water sprinkling and ventilation area control device is installed on the cooling tower site and is used to adjust the water sprinkling and ventilation area of ​​the cooling tower;

[0009] The upper tower bypass door opening monitoring device is connected to the upper tower bypass door and is used to collect opening data and transmit it to the control unit;

[0010] The load monitoring device is connected to the wet cooling unit and is used to collect load data and transmit it to the control unit;

[0011] The circulating water pump high-low speed switching monitoring device is connected to the circulating water pump and is used to detect the operating status and transmit data to the control unit;

[0012] The temperature monitoring device is arranged at the water inlet and outlet of the cooling tower and the environment, and is used to obtain temperature data and transmit it to the control unit;

[0013] The control unit is used to receive data from each monitoring device.

[0014] As a preferred solution of the winter circulating water temperature control system of the wet cooling unit described in the present invention, the cooling tower water sprinkling and ventilation area control device includes an adjusting device, and the adjusting device adjusts by changing the cooling tower water sprinkling and ventilation area, and the range includes 0 to 550 square meters.

[0015] As a preferred solution of the winter circulating water temperature control system of the wet cooling unit of the present invention, the control unit is connected to the regulating device through a wire to send instructions to adjust the water sprinkling and ventilation area of ​​the cooling tower.

[0016] As a preferred solution of the winter circulating water temperature control system of the wet cooling unit described in the present invention, the system also includes an intelligent energy-saving control device, which is connected to the fan, shutters, and water pump for automatically controlling the parameters of these devices.

[0017] As a preferred solution of the winter circulating water temperature control system of the wet cooling unit described in the present invention, the control unit includes integrating data from the upper tower bypass door opening monitoring device, the load monitoring device, the circulating water pump high and low speed switching monitoring device and the temperature monitoring device, and calculates the optimal cooling tower water sprinkling and ventilation area and the circulating water pump working mode according to a pre-set algorithm.

[0018] As a preferred solution of the winter circulating water temperature control system of the wet cooling unit of the present invention, the control unit is also used to execute field application test steps and conduct trial operation in a specific cooling tower to verify the actual effect of the control system.

[0019] As a preferred solution of the winter circulating water temperature control system of the wet cooling unit described in the present invention, the control unit generates a complete technical solution and operating procedures, including determining equipment selection, installation and commissioning, and operation and maintenance.

[0020] In a second aspect, the present invention provides a method for regulating the circulating water temperature of a wet cooling unit in winter, comprising: the control unit collects data on the operating status of the wet cooling unit through an upper tower bypass door opening monitoring device, a load monitoring device, a circulating water pump high-speed and low-speed switching monitoring device, and a temperature monitoring device;

[0021] After receiving the data from each monitoring device, the control unit calculates the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode according to a preset algorithm;

[0022] Based on the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode, the control unit sends instructions to the regulating device through the wire to adjust the cooling tower water sprinkling and ventilation area to the corresponding value, and automatically adjusts the equipment parameters of the fan, shutters and water pump.

[0023] In a third aspect, the present invention provides a computer device including a memory and a processor, wherein the memory stores a computer program, wherein: when the processor executes the computer program, the steps of the winter circulating water temperature control system of the wet cooling unit are implemented.

[0024] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, the steps of a winter circulating water temperature control system for a wet cooling unit are implemented.

[0025] Compared with the prior art, the beneficial effects of the present invention are that by automatically adjusting the cooling tower water sprinkling and ventilation area, the circulating water temperature in winter is ensured to be stably maintained within the range of 10±3℃, which significantly improves the operating efficiency and stability of the wet cooling unit; the intelligent energy-saving control device realizes real-time monitoring and automatic regulation of equipment parameters such as fans, shutters, and water pumps, shortening the system response time to less than 2 seconds, and controlling the control error within 3%, which greatly reduces the plant power consumption rate and achieves energy-saving effects; it replaces the traditional manual suspension antifreeze plate adjustment method, eliminates the lag and safety hazards caused by manual operation, and reduces labor costs and operational risks; by adjusting the upper tower bypass door opening and the unit Comprehensive analysis of factors such as load, cooling tower ventilation area, high and low speed switching of circulating water pumps, etc., optimized the heat exchange efficiency and heat dissipation effect of the cooling tower; formed a complete energy-saving transformation technical plan and operating procedures, clarified the standards for equipment selection, installation and commissioning, operation and maintenance, provided valuable technical references for the industry, and promoted the widespread application of energy-saving transformation of cooling towers of wet cooling units; it can automatically adjust operating parameters under different seasons and load conditions, enhancing the adaptability and flexibility of the system; and verified the actual effect of the control system through field application tests, published relevant papers and applied for patents, providing scientific basis and technical support for subsequent research and technical improvements. These beneficial effects not only improve the safety and economy of winter operation of wet cooling units, but also make important contributions to energy conservation, emission reduction and technological progress in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A system structure diagram of a winter circulating water temperature control system and method for a wet cooling unit provided by an embodiment of the present invention;

[0028] Figure 2 An internal structural diagram of a computer device for a winter circulating water temperature control system and method for a wet cooling unit provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, reference Figure 1-Figure 2 , which is the first embodiment of the present invention, and provides a winter circulating water temperature control system for a wet cooling unit, comprising:

[0033] The present application provides a method for effectively solving the above-mentioned problems. Next, multiple embodiments will be combined to explain in detail how to implement the winter circulating water temperature control system of the wet cooling unit;

[0034] Figure 1The system structure diagram of a wet cooling unit winter circulating water temperature control system and method is shown, including:

[0035] Cooling tower water spraying and ventilation area control device, upper tower bypass door opening monitoring device, load monitoring device, circulating water pump high and low speed switching monitoring device, temperature monitoring device and control unit;

[0036] The cooling tower water sprinkling and ventilation area control device is installed on the cooling tower site and is used to adjust the water sprinkling and ventilation area of ​​the cooling tower;

[0037] The upper tower bypass door opening monitoring device is connected to the upper tower bypass door and is used to collect opening data and transmit it to the control unit;

[0038] The load monitoring device is connected to the wet cooling unit and is used to collect load data and transmit it to the control unit;

[0039] The circulating water pump high-low speed switching monitoring device is connected to the circulating water pump and is used to detect the operating status and transmit data to the control unit;

[0040] The temperature monitoring device is arranged at the water inlet and outlet of the cooling tower and the environment, and is used to obtain temperature data and transmit it to the control unit;

[0041] The control unit is used to receive data from each monitoring device.

[0042] Furthermore, the cooling tower water sprinkling and ventilation area control device includes an adjusting device, and the adjusting device performs adjustment by changing the cooling tower water sprinkling and ventilation area, and the range includes 0 to 550 square meters.

[0043] Furthermore, the control unit is connected to the regulating device via a wire and is used to send instructions to adjust the water sprinkling and ventilation area of ​​the cooling tower.

[0044] Furthermore, the system also includes an intelligent energy-saving control device, which is connected to the fan, shutters, and water pump to automatically adjust the parameters of these devices.

[0045] Furthermore, the control unit includes integrating data from the upper tower bypass door opening monitoring device, the load monitoring device, the circulating water pump high and low speed switching monitoring device and the temperature monitoring device, and calculating the optimal cooling tower water sprinkling ventilation area and circulating water pump working mode according to a pre-set algorithm.

[0046] Furthermore, the control unit is also used to execute field application test steps and conduct trial operation in a specific cooling tower to verify the actual effect of the control system.

[0047] Furthermore, the control unit generates a complete technical solution and operating procedures, including equipment selection, installation and commissioning, and operation and maintenance.

[0048] Furthermore, this embodiment also provides a method for controlling the circulating water temperature of a wet cooling unit in winter, comprising:

[0049] The control unit collects data on the operating status of the wet cooling unit through an upper tower bypass door opening monitoring device, a load monitoring device, a circulating water pump high-low speed switching monitoring device, and a temperature monitoring device;

[0050] After receiving the data from each monitoring device, the control unit calculates the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode according to a preset algorithm;

[0051] Based on the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode, the control unit sends instructions to the regulating device through the wire to adjust the cooling tower water sprinkling and ventilation area to the corresponding value, and automatically adjusts the equipment parameters of the fan, shutters and water pump.

[0052] This embodiment also provides a computer device, which may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 2 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a winter circulating water temperature control system for a wet cooling unit is realized. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0053] This embodiment also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: the control unit collects data on the operating status of the wet cooling unit through an upper tower bypass door opening monitoring device, a load monitoring device, a circulating water pump high-low speed switching monitoring device, and a temperature monitoring device;

[0054] After receiving the data from each monitoring device, the control unit calculates the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode according to a preset algorithm;

[0055] Based on the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode, the control unit sends instructions to the regulating device through the wire to adjust the cooling tower water sprinkling and ventilation area to the corresponding value, and automatically adjusts the equipment parameters of the fan, shutters and water pump.

[0056] Example 2, reference Figure 1 - Figure 2 , which is the second embodiment of the present invention, and this embodiment provides a winter circulating water temperature control system for a wet cooling unit. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0057] In order to verify the effectiveness and advantages of the winter circulating water temperature control system of the wet cooling unit, a wet cooling unit (Unit 1) of Huaneng Lanzhou Fanping Thermal Power Co., Ltd. was selected as the experimental object. During the winter operation of the unit, the circulating water temperature fluctuated greatly, affecting the performance and economy of the unit. The traditional method of adjusting the water temperature by hanging antifreeze plates is not only inefficient, but also has safety hazards.

[0058] Test objects and environment settings

[0059] Test object name: Huaneng Lanzhou Fanping Thermal Power Co., Ltd. #1 wet cooling unit

[0060] Trial period: January 15, 2024 to March 15, 2024

[0061] Test location: No. 728, Fanjiaping, Xigu District, Lanzhou City, Gansu Province

[0062] Environmental conditions: The average temperature fluctuates between -5℃ and 5℃, with a large temperature difference between morning and evening and moderate humidity.

[0063] System installation and debugging

[0064] First, a cooling tower water sprinkling ventilation area control device was installed on site to ensure that it could flexibly adjust the water sprinkling ventilation area from 0 to 550 square meters. At the same time, the upper tower bypass door opening monitoring device, load monitoring device, circulating water pump high and low speed switching monitoring device and temperature monitoring device were connected. These devices are used to collect upper tower bypass door opening data, unit load data, circulating water pump operating status data and cooling tower inlet and outlet and ambient temperature data.

[0065] Next, the data transmission lines of all monitoring devices are connected to the control unit to ensure that the data can be transmitted in real time and accurately received. The intelligent energy-saving control device is also connected to the fan, blinds and water pump to automatically adjust the parameters of these devices according to the real-time working conditions.

[0066] Test plan

[0067] After completing the above preparations, a two-month trial run will begin. The trial run is divided into two phases:

[0068] Control phase (January 15-February 14):

[0069] During this period, the water temperature was adjusted using the traditional manual hanging antifreeze plate method and various operating parameters were recorded.

[0070] Experimental phase (February 15th - March 15th):

[0071] The winter circulating water temperature control system of the wet cooling unit of the present invention is activated to automatically adjust the water sprinkling and ventilation area, and the working modes of the fan, shutters and water pump are optimized through the intelligent energy-saving control device, and various operating parameters are recorded again.

[0072] Data is collected once a day in each phase, including but not limited to key indicators such as cooling tower inlet and outlet water temperature, ambient temperature, unit load, circulating water volume, etc. In addition, special attention is paid to the changes in the plant power consumption rate to evaluate the energy-saving effect of the system.

[0073] Table 1: Comparison of operating parameters at different stages

[0074]

[0075]

[0076] Table 2: System response time and control error statistics

[0077]

[0078] By comparing and analyzing the data in the table, it can be clearly seen that the winter circulating water temperature control system of the wet cooling unit of the present invention has significant advantages in many aspects:

[0079] Stability of inlet and outlet water temperatures: In the control phase, the inlet and outlet water temperatures fluctuated greatly and were difficult to maintain within a stable range due to the inability of traditional methods to accurately control them. In the experimental phase, by automatically adjusting the water sprinkling and ventilation area, the inlet and outlet water temperatures were stabilized at around 10°C, reducing the impact of temperature fluctuations on unit performance.

[0080] Reduction of power consumption rate in the plant: Experimental data show that after the system of the present invention is activated, the power consumption rate in the plant is reduced from the original 9.5% to 8.7%, a reduction of about 8.4%. This shows that the system not only improves the cooling efficiency, but also effectively saves power resources, with obvious economic benefits.

[0081] Improvement of system response time and control error: In the control phase, the system response time was 10 seconds and the control error was as high as 10%; in the experimental phase, the response time was shortened to less than 2 seconds and the control error was reduced to less than 3%. This fast and accurate control system greatly improves the safety and reliability of operations and avoids the risks caused by human factors.

[0082] Improvement of cooling tower vacuum degree: During the experimental phase, the cooling tower vacuum degree was increased from 78kPa to 80kPa. This change helps to further enhance the cooling effect and ensure that the unit can maintain good operating condition under high load conditions.

[0083] Optimization of fan, shutter and water pump parameters: During the experimental stage, the fan speed dropped slightly, the shutter opening was appropriately reduced, and the water pump flow was reasonably reduced. These adjustments not only ensured sufficient cooling capacity, but also achieved effective use of energy, reflecting the advantages of intelligent management of the system.

[0084] In summary, this embodiment fully demonstrates the innovation and practicality of the winter circulating water temperature control system of the wet cooling unit. Compared with the prior art, the present invention not only solves the problems of low efficiency and poor safety in the traditional method, but also achieves the effect of energy saving and emission reduction through intelligent management and refined control, and provides reliable guarantee for the efficient and stable operation of the wet cooling unit in winter. In addition, the successful application of the present invention also provides important reference value for the technological progress and development of related fields.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0086] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code. The scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0087] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0088] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0089] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0090] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0091] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A winter circulating water temperature control system for a wet cooling unit, characterized by: include, Cooling tower water spraying and ventilation area control device, upper tower bypass door opening monitoring device, load monitoring device, circulating water pump high and low speed switching monitoring device, temperature monitoring device and control unit; The cooling tower water sprinkling and ventilation area control device is installed on the cooling tower site and is used to adjust the water sprinkling and ventilation area of ​​the cooling tower; The upper tower bypass door opening monitoring device is connected to the upper tower bypass door and is used to collect opening data and transmit it to the control unit; The load monitoring device is connected to the wet cooling unit and is used to collect load data and transmit it to the control unit; The circulating water pump high-low speed switching monitoring device is connected to the circulating water pump and is used to detect the operating status and transmit data to the control unit; The temperature monitoring device is arranged at the water inlet and outlet of the cooling tower and the environment, and is used to obtain temperature data and transmit it to the control unit; The control unit is used to receive data from each monitoring device.

2. The winter circulating water temperature control system of the wet cooling unit according to claim 1, characterized in that: The cooling tower water sprinkling and ventilation area control device comprises an adjusting device, and the adjusting device performs adjustment by changing the cooling tower water sprinkling and ventilation area, and the range comprises 0 to 550 square meters.

3. The winter circulating water temperature control system of the wet cooling unit according to claim 2, characterized in that: The control unit is connected to the regulating device via a wire and is used to send instructions to adjust the water sprinkling and ventilation area of ​​the cooling tower.

4. The winter circulating water temperature control system of the wet cooling unit according to claim 3, characterized in that: The system also includes an intelligent energy-saving control device, which is connected to the fan, shutters, and water pump and is used to automatically adjust the parameters of these devices.

5. The winter circulating water temperature control system of the wet cooling unit according to claim 4, characterized in that: The control unit includes integrating data from the upper tower bypass door opening monitoring device, the load monitoring device, the circulating water pump high and low speed switching monitoring device and the temperature monitoring device, and calculates the optimal cooling tower water sprinkling ventilation area and circulating water pump working mode according to a pre-set algorithm.

6. The winter circulating water temperature control system of the wet cooling unit according to claim 5, characterized in that: The control unit is also used to perform field application test steps and conduct a trial run in a specific cooling tower to verify the actual effect of the control system.

7. The winter circulating water temperature control system of the wet cooling unit according to claim 6, characterized in that: The control unit generates a complete technical solution and operating procedures, including equipment selection, installation and commissioning, and operation and maintenance.

8. A method for controlling the circulating water temperature of a wet cooling unit in winter, based on the circulating water temperature control system of a wet cooling unit in winter according to any one of claims 1 to 7, characterized in that: Including, the control unit collects data on the operating status of the wet cooling unit through an upper tower bypass door opening monitoring device, a load monitoring device, a circulating water pump high-low speed switching monitoring device and a temperature monitoring device; After receiving the data from each monitoring device, the control unit calculates the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode according to a preset algorithm; Based on the optimal cooling tower water sprinkling and ventilation area and circulating water pump working mode, the control unit sends instructions to the regulating device through a wire to adjust the cooling tower water sprinkling and ventilation area to a corresponding value, and automatically regulates the equipment parameters of the fan, shutters, and water pump.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the winter circulating water temperature control system for a wet cooling unit according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the winter circulating water temperature control system for a wet cooling unit according to any one of claims 1 to 7 are implemented.

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