Regulation and control method and system of cold end system

Abstract

The invention relates to a regulation and control method and system for a cold end system, and the method comprises the steps: collecting the flow, tower inlet water temperature, tower outlet water temperature and power consumption data of a cooling tower in operation, and collecting the angle of an electric wind shield of the cold end system; based on the flow, the tower inlet water temperature, the tower outlet water temperature, the electricity consumption data and the angle of the electric wind shield of the cold end system, generating a performance evaluation index of the cold end system; and generating at least one optimized operation regulation and control action according to the performance evaluation index, and executing the at least one optimized operation regulation and control action so as to regulate and control the cold end system. Through real-time monitoring of data such as flow, water temperature and electric quantity in operation of the cooling tower, an optimized operation strategy of the cold end system is constructed, full-time linkage dynamic feedback adjustment of the electric wind shield is achieved, intelligent regulation and control of the cold end system of the power plant are achieved, and the purposes of saving energy and improving efficiency are achieved.

Description

Technical Field

[0001] This application relates to the field of intelligent management technology for the cold end of power plants, and in particular to a control method and system for a cold end system. Background Technology

[0002] Currently, the circulation efficiency of thermal power units is generally below 50%, mainly due to irreversible losses in the cold-end system. Therefore, starting with the cold-end system, we need to independently develop intelligent cold-end operation optimization algorithms to achieve closed-loop control of the cold-end system operation. We also need to develop an online intelligent operation and maintenance platform that considers cooling tower operating characteristics, condenser vacuum, circulating pump power consumption, and intelligent control of electric dampers, eliminating information silos in the cold-end system operation and guiding the intelligent operation of the cold-end system in thermal power units.

[0003] Among related technologies, it is possible to try to solve the problem of energy conservation and emission reduction in the system by introducing various management systems, MIS (Management Information System) and SIS (Strategic Information System), and to gradually establish digital twin models of power plant systems, including all aspects of the power system, based on various advanced algorithm models, in order to adjust the angle of the wind deflector.

[0004] However, in related technologies, cold-end systems suffer from data silos. Currently, there is a lack of a 24 / 7 real-time monitoring system for evaluating the performance of wet cooling towers. This system cannot evaluate the cooling performance and monitor the operational status of cooling towers in real time, thus failing to form a closed-loop control and meet the requirements of smart power plants and intelligent control. The cold-end system of the power plant urgently needs to be made intelligent. Currently, the operation and adjustment of the cold-end system are mechanized, and the adjustment method of the circulating water system is unscientific and uneconomical. There is no intelligent regulation of the circulating water system based on operating parameters such as cooling tower operating status and cooling load, as well as electric baffles, which reduces the efficiency of the cold-end system and urgently needs to be improved. Summary of the Invention

[0005] This application provides a method and system for regulating a cold-end system to address the problems in related technologies, such as data silos in cold-end systems, the lack of a real-time, all-weather monitoring system for evaluating the performance of wet cooling towers, the inability to evaluate cooling performance and monitor operation in real time, the inability to form closed-loop control, and the failure to meet the requirements of smart power plants and intelligent control. The cold-end system of a power plant urgently needs to be intelligentized. Currently, the operation and regulation of cold-end systems are mechanized, and the regulation methods of the circulating water system are unscientific and uneconomical. There is no intelligent regulation of the circulating water system based on operating parameters such as cooling tower operation status and cooling load, as well as electric baffles, which reduces the efficiency of the cold-end system.

[0006] The first aspect of this application provides a method for regulating a cold-end system, comprising the following steps: collecting data on the flow rate, inlet water temperature, outlet water temperature, and power consumption of a cooling tower during operation, and collecting the angle of the electric baffle of the cold-end system; generating performance evaluation indicators for the cold-end system based on the flow rate, inlet water temperature, outlet water temperature, power consumption data, and the angle of the electric baffle of the cold-end system; generating at least one optimized operation regulation action based on the performance evaluation indicators, and executing the at least one optimized operation regulation action to regulate the cold-end system.

[0007] Optionally, in one embodiment of this application, performing the at least one optimized operation control action to control the cold end system includes: using a rotary stepper motor connected to the electric wind deflector of the cold end system to perform the at least one optimized operation control action to drive the electric wind deflector of the cold end system to adjust its angle; and in response to the angle reaching a target value, controlling the cold end system to generate a control result for the cold end system.

[0008] Optionally, in one embodiment of this application, after regulating the cold end system, the method further includes: collecting meteorological environmental parameters around the cooling tower, wherein the meteorological environmental parameters include at least one of atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance; and optimizing the regulation action of the cold end system based on the meteorological environmental parameters.

[0009] Optionally, in one embodiment of this application, it further includes: using the upper and lower limit position switches of the electric wind deflector of the cold end system and the opto-isolation circuit to detect whether the electric wind deflector of the cold end system has reached a preset limit position; and triggering a warning signal of the cold end system in response to the electric wind deflector of the cold end system reaching the preset limit position.

[0010] Optionally, in one embodiment of this application, the method further includes: uploading the flow rate, the inlet water temperature, the outlet water temperature, the power consumption data, and the angle of the electric baffle of the cold end system to the monitoring and control center station and the main dispatch station via a wireless communication network; and receiving instructions from the monitoring and control center station and the main dispatch station to control the remote mobile wireless communication of the electric baffle of the cold end system according to the instructions.

[0011] A second aspect of this application provides a control system for a cold-end system, comprising: a data acquisition module for acquiring data on the flow rate, inlet water temperature, outlet water temperature, and power consumption of a cooling tower during operation, and for acquiring the angle of an electric baffle plate of the cold-end system; a generation module for generating performance evaluation indicators for the cold-end system based on the data on the flow rate, inlet water temperature, outlet water temperature, power consumption, and the angle of the electric baffle plate; and a control module for generating at least one optimized operation control action based on the performance evaluation indicators, and executing the at least one optimized operation control action to control the cold-end system.

[0012] Optionally, in one embodiment of this application, the control module includes: a drive unit, configured to execute at least one optimized operation control action using a rotary stepper motor connected to the electric wind deflector of the cold end system, to drive the electric wind deflector of the cold end system to adjust its angle; and a control unit, configured to control the cold end system in response to the angle reaching a target value, to generate a control result for the cold end system.

[0013] Optionally, in one embodiment of this application, it further includes: a data acquisition module, used to acquire meteorological environmental parameters around the cooling tower after regulating the cold end system, wherein the meteorological environmental parameters include at least one of atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance; and an optimization module, used to optimize the regulation action of the cold end system based on the meteorological environmental parameters.

[0014] Optionally, in one embodiment of this application, it further includes: a detection module, used to detect whether the electric wind deflector of the cold end system has reached a preset limit position using the upper and lower limit position switches of the electric wind deflector of the cold end system and the opto-isolation circuit; and a triggering module, used to trigger a warning signal of the cold end system in response to the electric wind deflector of the cold end system reaching the preset limit position.

[0015] Optionally, in one embodiment of this application, it further includes: an uploading module, used to upload the flow rate, the inlet water temperature, the outlet water temperature, the power consumption data, and the angle of the electric baffle of the cold end system to the monitoring and control center station and the main dispatch station via a wireless communication network; and a control module, used to receive instructions from the monitoring and control center station and the main dispatch station to control the remote mobile wireless communication of the electric baffle of the cold end system according to the instructions.

[0016] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the control method for a cold-end system as described in the above embodiments.

[0017] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described control method for a cold-end system.

[0018] This application embodiment constructs an optimized operation strategy for the cold-end system by real-time monitoring of data such as flow rate, water temperature, and power consumption during the operation of the cooling tower. This enables real-time, dynamic feedback adjustment of the electric baffle, achieving intelligent control of the power plant's cold-end system and achieving energy conservation and efficiency improvement. This solves the problems in related technologies, such as data silos in the cold-end system, the lack of a real-time, all-weather monitoring system for evaluating the performance of wet cooling towers, the inability to evaluate cooling performance and monitor operation in real time, the inability to form closed-loop control, and the failure to meet the requirements of smart power plants and intelligent control. The power plant's cold-end system urgently needs intelligentization; currently, the operation and adjustment of the cold-end system are mechanized, and the adjustment methods of the circulating water system are unscientific and uneconomical. There is no intelligent control of the circulating water system based on operating parameters such as cooling tower status, cooling load, and the electric baffle, which reduces the efficiency of the cold-end system.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the installation of the electric wind deflector in this application; Figure 2 This is the left view of this application; Figure 3 This is a schematic diagram of the installation of the wireless temperature measurement unit in this application; Figure 4 This is a schematic diagram of the wireless temperature measurement unit circuit of this application; Figure 5 This is a pinout diagram of the DS18B20 digital temperature transmitter of this application; Figure 6 This is a flowchart of a control method for a cold-end system according to an embodiment of this application; Figure 7 This is a schematic block diagram of the control system of this application; Figure 8This is a diagram of the power metering network transmitter of this application; Figure 9 This is a circuit diagram of the corner stepper motor drive circuit of this application; Figure 10 This is a schematic diagram of the structure of a control system for a cold-end system according to an embodiment of this application; Figure 11 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application.

[0021] Attached reference numerals: 1-Water tower inclined column, 2-Sealed roof, 3-Corner stepper motor, 4-Rotating wheel, 5-Electric wind baffle, 6-Frame column, 7-Wireless temperature measurement unit, 8-Locking nut, 9-Bushing, 10-Flange, 11-Temperature probe, 12-Pipeline. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0023] The following description, with reference to the accompanying drawings, illustrates a method and system for controlling a cold-end system according to embodiments of this application. In the related technologies mentioned in the background section, cold-end systems suffer from data silos. Currently, there is a lack of a 24 / 7 real-time monitoring system for evaluating the performance of wet cooling towers. This system cannot evaluate the cooling performance and monitor the operational status of the cooling towers in real time, cannot form closed-loop control, and fails to meet the requirements of smart power plants and intelligent control. Power plant cold-end systems urgently need intelligentization. Currently, the operation and regulation of cold-end systems are mechanized, and the regulation methods for the circulating water system are unscientific and uneconomical. There is no intelligent regulation of the circulating water system based on operating parameters such as cooling tower operating status and cooling load, as well as the electric baffle, which reduces the efficiency of the cold-end system. This application provides a method for controlling a cold-end system. In this method, by real-time monitoring of data such as flow rate, water temperature, and power consumption during cooling tower operation, an optimized operation strategy for the cold-end system is constructed. This enables real-time, dynamic feedback regulation of the electric baffle, achieving intelligent control of the power plant's cold-end system and achieving the goal of energy saving and efficiency improvement. This addresses the issues in related technologies, such as data silos in cold-end systems, the lack of a real-time, all-weather monitoring system for evaluating the performance of wet cooling towers, the inability to evaluate cooling performance and monitor operational status in real time, the inability to form closed-loop control, and the failure to meet the requirements of smart power plants and intelligent control. The power plant's cold-end system urgently needs to be intelligentized. Currently, the operation and regulation of the cold-end system are mechanized, and the regulation methods of the circulating water system are unscientific and uneconomical. There is no intelligent regulation of the circulating water system based on operating parameters such as cooling tower status and cooling load, as well as electric baffles, which reduces the efficiency of the cold-end system.

[0024] Before describing the control method of the cold end system proposed in the embodiments of this application, the installation diagram of the electric wind deflector of the cold end system involved in the embodiments of this application will be introduced first.

[0025] like Figure 1-2As shown, the system includes an intelligent control center, a corner stepper motor, an inlet water temperature network transmitter, an outlet water temperature network transmitter, a wind speed and direction network transmitter, and a power network transmitter. An electric windbreak 5 hangs on the outside of the frame column 6. The electric windbreak 5 is a plate-type roller shutter structure, with its upper end wound around a rotating wheel 4. The axle end of the rotating wheel 4 is connected to a corner stepper motor 3, which is a pulse-type stepper motor with a double-bearing output shaft and high output torque. The top of the frame column 6 is connected to the inclined column 1 of the water tower via a sealed roof 2 to maintain structural stability. The control center is connected to the angle stepper motor, the inlet water temperature network transmitter, the outlet water temperature network transmitter, the wind speed and direction network transmitter, and the power network transmitter. The intelligent control center communicates with the metering and control center and the main dispatch station via a 5G wireless network. The inlet and outlet water temperature network transmitters are connected to the wireless temperature measurement units on the inlet and outlet water pipes, respectively. These transmitters are housed in bushings, which are fixed to flanges with lock nuts. The flanges are connected to the pipes at the temperature measurement ports with screws. The model of the inlet and outlet water temperature network transmitters is the DS18B20 one-wire bus-type digital temperature transmitter.

[0026] like Figure 3-5 As shown, the wireless temperature measurement unit 7 is located in the bushing 9. The bushing 9 is fixedly connected to the flange 10 by the locking nut 8. The flange 10 is connected to the pipe 12 at the temperature measurement hole by screws. The temperature measurement probe 11 is attached to the bottom of the bushing 9 to complete the temperature signal acquisition and data transmission through the wireless temperature measurement unit 7.

[0027] Specifically, Figure 6 This is a flowchart illustrating a control method for a cold-end system provided in an embodiment of this application.

[0028] like Figure 6 As shown, the control method of this cold-end system includes the following steps: In step S601, the flow rate, inlet water temperature, outlet water temperature, and power consumption data of the cooling tower during operation are collected, and the angle of the electric baffle of the cold end system is also collected.

[0029] It is understood that the water temperature in the embodiments of this application includes the inlet water temperature and the outlet water temperature.

[0030] In actual implementation, the embodiments of this application can be based on a network transmitter-based online real-time monitoring system for cooling towers. By collecting and monitoring data such as flow rate, water temperature, and power consumption during the operation of the cooling tower, intelligent control of the power plant's cold end system can be achieved, thereby achieving the goal of energy saving and efficiency improvement. Furthermore, by collecting and monitoring the angle of the electric baffle in real time, the system can guide the intelligent control and maintenance of the electric baffle components of the cooling tower, providing a data foundation for the construction of a performance evaluation model for the cold end system.

[0031] This application provides support for constructing an optimized operation strategy for the cold end system by real-time monitoring of data such as flow rate, water temperature, and power consumption during the operation of the cooling tower. This enables the all-time linkage dynamic feedback adjustment of the electric wind deflector, achieving intelligent control of the power plant's cold end system and achieving the goal of energy saving and efficiency improvement.

[0032] In step S602, performance evaluation indicators for the cold end system are generated based on flow rate, inlet water temperature, outlet water temperature, power consumption data, and the angle of the electric baffle of the cold end system.

[0033] In this application, the embodiments can guide the intelligent control and maintenance of the cooling tower's electric baffle components based on flow rate, inlet water temperature, outlet water temperature, power consumption data, and the angle of the electric baffle in the cold end system. This constructs a comprehensive performance evaluation model for the cold end system, generating performance evaluation indicators and enabling real-time dynamic feedback adjustment of the electric baffle. Specifically, this application can establish a comprehensive performance evaluation model for the cold end system that conforms to the characteristics of the cooling tower, circulating pump power consumption, and electric baffle opening, obtaining the logical relationships between parameters and laying a theoretical foundation for optimized operation strategies of the cold end system.

[0034] In step S603, at least one optimized operation control action is generated based on the performance evaluation index, and at least one optimized operation control action is executed to control the cold end system.

[0035] It is understood that the optimized operation control action in the embodiments of this application can be an action to achieve a dynamic balance between cooling efficiency and energy consumption through precise adjustment. The control object is the angle of the electric wind deflector, and the operation status of the circulating water pump can be linked for auxiliary control.

[0036] In actual implementation, embodiments of this application can generate at least one optimized operation control action based on performance evaluation indicators, and execute at least one optimized operation control action to regulate the cold end system. For example, when performance evaluation indicators show that the cooling tower cooling efficiency is insufficient, the optimized control action generated by this application can be to increase the opening of the electric baffle, thereby increasing the gas-liquid heat exchange efficiency in the cooling tower by expanding the air inlet area; as another example, when indicators show that the circulating pump power consumption is too high, but the cooling efficiency meets the requirements, the optimized control action generated by this application can be to decrease the opening of the electric baffle, thereby reducing airflow resistance while ensuring the cooling effect, and thus reducing the operating load of the circulating pump.

[0037] The embodiments of this application can realize real-time monitoring of inlet and outlet water temperatures and the angle of the electric baffle, guide the intelligent control and maintenance of the electric baffle components of the cooling tower, provide a data foundation for the construction of a performance evaluation model for the cold end system, realize the all-time linkage dynamic feedback adjustment of the electric baffle, and thus realize the intelligent control of the power plant's cold end system to achieve the goal of energy saving and efficiency improvement.

[0038] Optionally, in one embodiment of this application, at least one optimized operation control action is performed to control the cold end system, including: using a rotary stepper motor connected to the electric baffle of the cold end system to perform at least one optimized operation control action to drive the electric baffle of the cold end system to adjust the angle; and in response to the angle reaching the target value, controlling the cold end system to generate the control result of the cold end system.

[0039] It is understood that in the embodiments of this application, the upper end of the electric baffle of the cold end system is wound on the rotating wheel, and the wheel axle end of the rotating wheel is connected to the angle stepper motor, which is a pulse stepper motor.

[0040] In this embodiment, a rotary stepper motor connected to the electric baffle of the cold end system can be used to perform at least one optimized operation control action to drive the electric baffle of the cold end system to adjust its angle. In response to the angle reaching the target value, the cold end system is controlled to generate the control result of the cold end system, ensuring that the cooling tower online real-time monitoring system based on the network transmitter can realize the intelligent control of the power plant's cold end system and achieve the goal of energy saving and efficiency improvement.

[0041] Optionally, in one embodiment of this application, after regulating the cold end system, the method further includes: collecting meteorological environmental parameters around the cooling tower, wherein the meteorological environmental parameters include at least one of atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance; and optimizing the regulation action of the cold end system based on the meteorological environmental parameters.

[0042] It is understood that the meteorological environmental parameters in the embodiments of this application can be meteorological elements.

[0043] In actual implementation, such as Figure 7 As shown, the embodiments of this application include a wind speed and direction network transmitter, which is an IES series IoT environmental data acquisition system that can simultaneously monitor many meteorological elements such as atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance. The wind speed and direction sensors are meteorological-specific sensors with high precision and high reliability. This application optimizes the control actions of the cold-end system based on the above meteorological elements, so as to perform functions such as meteorological data acquisition, real-time clock, timed storage of meteorological data, parameter setting, user-friendly human-machine interface, and standard communication through the meteorological data acquisition instrument.

[0044] The embodiments of this application can combine sensing technology, network transmitters and data processing algorithms to develop an intelligent cold-end system operation and maintenance platform, guide the optimized design of the cold-end system, and promote the closed-loop control and intelligent operation of the cold-end system.

[0045] Optionally, in one embodiment of this application, it further includes: using the upper and lower limit position switches of the cold end system electric wind deflector and the opto-isolation circuit to detect whether the cold end system electric wind deflector has reached a preset limit position; and triggering a warning signal of the cold end system in response to the cold end system electric wind deflector reaching the preset limit position.

[0046] Specifically, such as Figure 7 As shown in the embodiment of this application, the network power metering controller in the power network transmitter can be connected to an ASIC electrical measurement chip (the ASIC electrical measurement chip is a power acquisition chip, equipped with a current sensor interface and a voltage sensor interface), an ambient temperature network transmitter, an LCD screen, a keyboard, a watchdog circuit, a USB interface, a time circuit, a digital input circuit, a digital output circuit, an opto-isolation circuit, and a 5G communication module. The digital input circuit and the digital output circuit are respectively connected to the upper and lower limit position switches of the electric wind deflector through the opto-isolation circuit. The upper and lower limit position switches of the electric wind deflector of the cold end system are used to detect whether the electric wind deflector of the cold end system has reached the preset limit position. The RS485 interface and the 4-20mA interface are respectively connected to the network power metering controller through the opto-isolation circuit. The network power metering controller is also connected to an alarm, which triggers a warning signal of the cold end system in response to the electric wind deflector of the cold end system reaching the preset limit position.

[0047] Furthermore, such as Figure 8 As shown, the ambient temperature network transmitter is also model DS18B20, specifically designed for measuring the internal temperature rise of the network power metering device. The watchdog circuit chip is model IMP813. The watchdog's function is to periodically check the internal status of the chip, and send a restart signal to the chip if an error occurs. The watchdog command has the highest priority in the program interrupt. The time circuit uses a 32.768kHz crystal oscillator in conjunction with a frequency divider circuit to generate the second signal required for the calendar function, specifically designed for measuring power consumption and off-peak hours (23:00 to 7:00 the next day).

[0048] The embodiments of this application can further combine sensing technology, network transmitters and data processing algorithms to develop an intelligent cold-end system operation and maintenance platform, guide the optimized design of the cold-end system, and promote the closed-loop control and intelligent operation of the cold-end system.

[0049] Optionally, in one embodiment of this application, it further includes: uploading data on flow rate, inlet water temperature, outlet water temperature, power consumption, and the angle of the electric baffle of the cold end system to the monitoring and control center station and the main dispatch station via a wireless communication network; and receiving instructions from the monitoring and control center station and the main dispatch station to control the remote mobile wireless communication of the electric baffle of the cold end system according to the instructions.

[0050] In actual implementation, the network power metering controller in this embodiment is a controller composed of an 8-bit embedded microcomputer. The ASLC measurement chip is a dedicated chip for power measurement. The input terminal is connected to a current sensor CT and a voltage sensor PT from the measured power. After completing the power measurement, the data is transmitted to the network power metering controller for further processing, storage, and network transmission. The 4-20mA constant current output terminal provides a standard current source for its external sensors. The network power metering transmitter is equipped with an RS485 communication interface for networking, such as Profibus-DP fieldbus. In this application, the power metering network transmitter is also equipped with 5G communication function, which uploads data such as flow rate, inlet water temperature, outlet water temperature, power consumption, and the angle of the cold end system electric damper to the metering and control center station and the main dispatch station through a wireless communication network. It receives instructions from the metering and control center station and the main dispatch station to control the remote mobile wireless communication of the cold end system electric damper according to the instructions.

[0051] Specifically, it can be combined with Figure 9 As shown, the corner stepper motor drive circuit uses a ULN2003 high-current drive array, which is widely used in control circuits of microcontrollers, smart meters, PLCs, digital output cards, etc., and can directly drive loads such as relays. In this embodiment, a buzzer is used for overload alarm, and a relay is used for motor switching control.

[0052] According to the cold-end system control method proposed in this application, by real-time monitoring of data such as flow rate, water temperature, and power consumption during cooling tower operation, an optimized operation strategy for the cold-end system is constructed. This enables real-time dynamic feedback adjustment of the electric baffle, achieving intelligent control of the power plant's cold-end system and achieving the goal of energy saving and efficiency improvement. This solves the problems in related technologies, such as data silos in the cold-end system, the lack of a real-time, all-weather monitoring system for evaluating the performance of wet cooling towers, the inability to evaluate cooling performance and monitor operation status in real time, the inability to form closed-loop control, and the failure to meet the requirements of smart power plants and intelligent control. The power plant's cold-end system urgently needs intelligentization. Currently, the operation and adjustment of the cold-end system are mechanized, and the adjustment method of the circulating water system is unscientific and uneconomical. There is no intelligent control of the circulating water system based on operating parameters such as cooling tower operation status, cooling load, and the electric baffle, which reduces the efficiency of the cold-end system.

[0053] Next, the control system of the cold end system proposed according to the embodiments of this application is described with reference to the accompanying drawings.

[0054] Figure 10 This is a schematic diagram of the control system of the cold end system according to an embodiment of this application.

[0055] like Figure 10 As shown, the control system 10 of the cold end system includes: a data acquisition module 100, a generation module 200, and a control module 300.

[0056] Specifically, the data acquisition module 100 is used to collect data on the flow rate, inlet water temperature, outlet water temperature, and power consumption of the cooling tower during operation, and to collect the angle of the electric baffle of the cold end system.

[0057] The generation module 200 is used to generate performance evaluation indicators for the cold end system based on flow rate, inlet water temperature, outlet water temperature, power consumption data, and the angle of the electric baffle of the cold end system.

[0058] The control module 300 is used to generate at least one optimized operation control action based on performance evaluation indicators, and execute at least one optimized operation control action to control the cold end system.

[0059] Optionally, in one embodiment of this application, the control module 300 includes a driving unit and a control unit.

[0060] The drive unit is used to perform at least one optimized operation control action by using a rotary stepper motor connected to the electric baffle of the cold end system to drive the electric baffle of the cold end system to adjust its angle.

[0061] The control unit is used to control the cold end system in response to the angle reaching the target value, so as to generate the control result of the cold end system.

[0062] Optionally, in one embodiment of this application, the control system 10 of the cold end system further includes a data acquisition module and an optimization module.

[0063] The data acquisition module is used to collect meteorological environmental parameters around the cooling tower after the cold end system is regulated. The meteorological environmental parameters include at least one of atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance.

[0064] The optimization module is used to optimize the control actions of the cold-end system based on meteorological environmental parameters.

[0065] Optionally, in one embodiment of this application, the control system 10 of the cold end system further includes a detection module and a triggering module.

[0066] The detection module is used to detect whether the electric baffle of the cold end system has reached the preset limit position by using the upper and lower limit position switches of the electric baffle of the cold end system and the opto-isolation circuit.

[0067] The trigger module is used to trigger a warning signal for the cold end system when the electric wind deflector of the cold end system reaches a preset limit position.

[0068] Optionally, in one embodiment of this application, the control system 10 of the cold end system further includes an upload module and a control module.

[0069] The upload module is used to upload data such as flow rate, inlet water temperature, outlet water temperature, power consumption, and the angle of the electric baffle of the cold end system to the metering and control center station and the main dispatch station via wireless communication network.

[0070] The control module is used to receive instructions from the control center station and the main dispatch station, and to control the remote mobile wireless communication of the electric wind deflector of the cold end system according to the instructions.

[0071] It should be noted that the explanation of the control method embodiment for the cold end system described above also applies to the control system of the cold end system in this embodiment, and will not be repeated here.

[0072] The control system for the cold-end system proposed in this application constructs an optimized operation strategy for the cold-end system by real-time monitoring of data such as flow rate, water temperature, and power consumption during the operation of the cooling tower. This enables real-time, dynamic feedback adjustment of the electric baffle, achieving intelligent control of the power plant's cold-end system and achieving energy conservation and efficiency improvement. This solves the problems in related technologies, such as data silos in the cold-end system, the lack of a real-time, all-weather monitoring system for evaluating the performance of wet cooling towers, the inability to evaluate cooling performance and monitor operation in real time, the inability to form closed-loop control, and the failure to meet the requirements of smart power plants and intelligent control. The power plant's cold-end system urgently needs intelligentization; currently, the operation and adjustment of the cold-end system are mechanized, and the adjustment methods of the circulating water system are unscientific and uneconomical. There is no intelligent control of the circulating water system based on operating parameters such as cooling tower operation status, cooling load, and the electric baffle, which reduces the efficiency of the cold-end system.

[0073] Figure 11 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 1101, the processor 1102, and the computer program stored on the memory 1101 and executable on the processor 1102.

[0074] When the processor 1102 executes the program, it implements the control method of the cold end system provided in the above embodiments.

[0075] Furthermore, electronic devices also include: Communication interface 1103 is used for communication between memory 1101 and processor 1102.

[0076] The memory 1101 is used to store computer programs that can run on the processor 1102.

[0077] The memory 1101 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage.

[0078] If the memory 1101, processor 1102, and communication interface 1103 are implemented independently, then the communication interface 1103, memory 1101, and processor 1102 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 11 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0079] Optionally, in a specific implementation, if the memory 1101, processor 1102, and communication interface 1103 are integrated on a single chip, then the memory 1101, processor 1102, and communication interface 1103 can communicate with each other through an internal interface.

[0080] The processor 1102 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0081] This embodiment also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described control method for the cold-end system.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0085] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0086] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0087] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0088] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0089] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for controlling a cold-end system, characterized in that, Includes the following steps: Collect data on the flow rate, inlet water temperature, outlet water temperature, and power consumption of the cooling tower during operation, and also collect the angle of the electric baffle of the cold end system; Based on the flow rate, the inlet water temperature, the outlet water temperature, the power consumption data, and the angle of the electric baffle of the cold end system, a performance evaluation index for the cold end system is generated. At least one optimized operation control action is generated based on the performance evaluation indicators, and the at least one optimized operation control action is executed to control the cold end system.

2. The method according to claim 1, characterized in that, The execution of the at least one optimized operation control action to control the cold-end system includes: The at least one optimized operation control action is executed by a rotary stepper motor connected to the electric baffle of the cold end system to drive the electric baffle of the cold end system to adjust its angle. In response to the angle reaching the target value, the cold end system is regulated to generate the regulation result of the cold end system.

3. The method according to claim 1, characterized in that, After regulating the cold-end system, the following is also included: Meteorological environmental parameters around the cooling tower are collected, wherein the meteorological environmental parameters include at least one of atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance; Based on the meteorological environmental parameters, the control actions of the cold end system are optimized.

4. The method according to claim 1, characterized in that, Also includes: The upper and lower limit position switches of the electric wind deflector of the cold end system and the opto-isolation circuit are used to detect whether the electric wind deflector of the cold end system has reached the preset limit position. When the electric baffle of the cold end system reaches the preset limit position, a warning signal of the cold end system is triggered.

5. The method according to claim 1, characterized in that, Also includes: The flow rate, the inlet water temperature, the outlet water temperature, the power consumption data, and the angle of the electric baffle of the cold end system are uploaded to the monitoring and control center station and the main dispatch station through the wireless communication network. The system receives instructions from the control center station and the central dispatch station to control the remote mobile wireless communication of the electric wind deflector of the cold end system according to the instructions.

6. A control system for a cold-end system, characterized in that, include: The data acquisition module is used to collect data on the flow rate, inlet water temperature, outlet water temperature, and power consumption of the cooling tower during operation, as well as the angle of the electric baffle of the cold end system. The generation module is used to generate performance evaluation indicators for the cold end system based on the flow rate, the inlet water temperature, the outlet water temperature, the power consumption data, and the angle of the electric baffle of the cold end system. The control module is used to generate at least one optimized operation control action based on the performance evaluation index, and to execute the at least one optimized operation control action to control the cold end system.

7. The system according to claim 6, characterized in that, The control module includes: A drive unit is used to execute at least one optimized operation control action using a rotary stepper motor connected to the electric baffle of the cold end system, so as to drive the electric baffle of the cold end system to adjust its angle. The control unit is used to control the cold end system in response to the angle reaching the target value, so as to generate the control result of the cold end system.

8. The system according to claim 6, characterized in that, Also includes: The data acquisition module is used to collect meteorological environmental parameters around the cooling tower after the cold end system is regulated. The meteorological environmental parameters include at least one of atmospheric temperature, atmospheric humidity, soil temperature, soil humidity, rainfall, wind speed, wind direction, air pressure, radiation, and illuminance. The optimization module is used to optimize the control actions of the cold-end system based on the meteorological environmental parameters.

9. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the control method for a cold-end system as described in any one of claims 1-5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the control method for the cold-end system as described in any one of claims 1-5.

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