Intelligent control method and device for waste heat unit, terminal equipment and medium

Abstract

The invention discloses an intelligent control method and device for a waste heat unit, terminal equipment and a medium, and belongs to the technical field of heating and refrigerating combined systems. The method comprises the following steps: acquiring an oil temperature parameter and a water circulation parameter of the waste heat unit; acquiring operation state parameters of the air compressor; the oil temperature parameters, the water circulation parameters and the air compressor operation state parameters are input into a waste heat unit control model, and change prediction is conducted on the outlet water temperature in the water circulation parameters in combination with the air compressor operation state parameters; according to the outlet water temperature change prediction result, a water circulation control instruction is generated with the purpose of constant outlet water temperature, and the water circulation speed is controlled; according to temperature data and water circulation parameters collected by a temperature sensor in the waste heat unit, a digital twinborn model is established for dynamic display. According to the scheme, the purpose of accurately controlling the outlet water temperature is achieved, the energy utilization efficiency is improved, and it is ensured that the output high-temperature water serves as a heat source provided for the lithium bromide unit and has enough stability.

Description

Technical Field

[0001] The present application belongs to the technical field of combined heating and cooling systems, and specifically relates to an intelligent control method, device, terminal equipment and medium for a waste heat unit. Background Art

[0002] At present, with the increasing demand for industrial production, the heat generated in industrial production needs to be recycled. The lithium bromide unit can be applied to heat recovery to form a combined system of heat recovery and refrigeration because it can achieve the purpose of refrigeration based on hot water and meets the use requirements of cold water in industrial production, life, etc. After the heat is recovered, the hot water formed can be provided to the lithium bromide refrigeration unit to provide a heat source for the refrigeration of the lithium bromide refrigeration unit. However, the current heat recovery process does not have a better control method, which makes the heat source input of the lithium bromide unit unstable. Therefore, how to accurately control heat recovery is a technical problem to be solved in this field. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide an intelligent control method, device, terminal equipment and medium for a waste heat unit, with the purpose of solving the problems of unstable and unsuitable output water temperature caused by the inability to reasonably control the waste heat unit. This solution can achieve the purpose of accurately controlling the outlet water temperature by controlling the water circulation parameters of the waste heat unit, improve the utilization efficiency of energy, and ensure that the output high-temperature water has sufficient stability as a heat source provided to the lithium bromide unit.

[0004] In a first aspect, an embodiment of the present application provides an intelligent control method for a waste heat unit, the method comprising: Obtaining oil temperature parameters and water circulation parameters of the waste heat unit; wherein the oil temperature parameters include oil inlet temperature and oil outlet temperature, and the water circulation parameters include water circulation speed and water outlet temperature; Collect air compressor operating status parameters; The oil temperature parameter, the water circulation parameter and the air compressor operating state parameter are input into the waste heat unit control model, so that the waste heat unit control model combines the air compressor operating state parameter to predict the change of the outlet water temperature in the water circulation parameter; Using the waste heat unit control model to predict the change in outlet water temperature, a water circulation control instruction is generated to control the water circulation speed with the purpose of keeping the outlet water temperature constant; A digital twin model is established by using the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and is dynamically displayed on the terminal device.

[0005] Furthermore, the method further comprises: When an operation instruction is received through the terminal device, input the change parameters corresponding to the operation instruction into the waste heat unit control model to output result prediction data of the current operation instruction based on the waste heat unit control model; Display the result prediction data for the user to confirm the operation instruction; After receiving the confirmation operation, execute the operation instruction to control the parameters of the waste heat unit.

[0006] Furthermore, the method further includes: Obtain the inlet water temperature of the water cycle and collect it into the water cycle parameters; Correspondingly, use the waste heat unit control model to generate a water cycle control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change to control the water cycle speed, including: Use the waste heat unit control model to generate a water cycle control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change to control the water cycle speed and / or the inlet water temperature.

[0007] Furthermore, the method further includes: Use the water cycle speed and the inlet water temperature as control variables to determine the sensitivity tensor of the outlet water temperature to the control variables; Correspondingly, use the waste heat unit control model to generate a water cycle control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change to control the water cycle speed and / or the inlet water temperature, including: Use the waste heat unit control model to generate a water cycle control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change and the sensitivity tensor to control the water cycle speed and / or the inlet water temperature.

[0008] Furthermore, the method further includes: Obtain the connection relationship information and the internal pipeline distribution information of the waste heat unit; According to the connection relationship information and the internal pipeline distribution information, construct a hydrodynamic model for each cooling tower in the waste heat unit; Correspondingly, establish a digital twin model through the temperature data collected by the temperature sensors in the waste heat unit and the water cycle parameters, and perform dynamic display on the terminal device, including: Establish a digital twin model through the temperature data collected by the temperature sensors in the waste heat unit, the water cycle parameters, and the hydrodynamic model, and perform dynamic display on the terminal device.

[0009] Further, in the terminal device, a flow arrow is generated, the rotation speed of the flow arrow is determined according to the water circulation speed, and the display position of the flow arrow is determined according to the fluid dynamics model.

[0010] Further, the waste heat unit control model is used to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change, and control the water circulation speed, including: The waste heat unit control model is used to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change and the fluid dynamics model, and control the water circulation speed.

[0011] In a second aspect, an intelligent control device for a waste heat unit provided by an embodiment of the present application includes: A parameter acquisition module, configured to acquire the oil temperature parameter and the water circulation parameter of the waste heat unit; wherein, the oil temperature parameter includes the inlet oil temperature and the outlet oil temperature, and the water circulation parameter includes the water circulation speed and the outlet water temperature; An operating state parameter acquisition module, configured to acquire the operating state parameters of the air compressor; A prediction module, configured to input the oil temperature parameter, the water circulation parameter, and the operating state parameters of the air compressor into the waste heat unit control model, so that the waste heat unit control model combines the operating state parameters of the air compressor to predict the change of the outlet water temperature in the water circulation parameters; A water circulation control module, configured to use the waste heat unit control model to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change, and control the water circulation speed; A dynamic display module, configured to establish a digital twin model through the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameter, and perform dynamic display on the terminal device.

[0012] In a third aspect, an embodiment of the present application provides a terminal device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0013] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] In a fifth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the method described in the first aspect.

[0015] In an embodiment of the present application, the oil temperature parameters and the water circulation parameters of the waste heat unit are obtained; wherein, the oil temperature parameters include the inlet oil temperature and the outlet oil temperature, and the water circulation parameters include the water circulation speed and the outlet water temperature; the operating state parameters of the air compressor are collected; the oil temperature parameters, the water circulation parameters, and the operating state parameters of the air compressor are input into the waste heat unit control model, so that the waste heat unit control model combines the operating state parameters of the air compressor to predict the change of the outlet water temperature in the water circulation parameters; the waste heat unit control model is used to generate a water circulation control instruction for controlling the water circulation speed with the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change; a digital twin model is established through the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and is dynamically displayed on the terminal device. Through the above technical solution, the purpose of accurately controlling the outlet water temperature can be achieved by controlling the water circulation parameters of the waste heat unit, the energy utilization efficiency can be improved, and it is ensured that the output high-temperature water has sufficient stability as the heat source provided to the lithium bromide unit. Description of the Drawings

[0016] Figure 1 is a schematic flowchart of the intelligent control method for the waste heat unit provided in the first embodiment of the present application; Figure 2 is a schematic flowchart of the intelligent control method for the waste heat unit provided in the second embodiment of the present application; Figure 3 is a schematic structural diagram of the intelligent control device for the waste heat unit provided in the third embodiment of the present application; Figure 4 is a schematic structural diagram of the cleaning equipment provided in the fourth embodiment of the present application. Detailed Embodiments

[0017] In order to make the purpose, technical solution and advantages of the present application clearer, the following further describes the specific embodiments of the present application in detail with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Additionally, it should be noted that for the sake of convenience of description, only parts related to the present application are shown in the drawings, rather than all of the content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. When the operations are completed, the process can be terminated, but there can also be additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0019] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0020] During the operation of the air compressor, the air compressor lubricating oil will generate a large amount of waste heat. In order to keep the air compressor working normally, the temperature of the lubricating oil needs to be maintained at a working space of 50-55℃, and it needs to be cooled by the cooling tower. If the cooling tower cannot be accurately controlled, it will not only cause waste of heat energy of the air compressor, but also increase the loss of electricity and waste of water resources. The air compressor waste heat recovery unit is a device that recycles the waste heat of the air compressor. When the air compressor is working, part of the input electrical energy is converted into the potential energy of compressed air, and the other part of the energy is converted into heat. The air compressor waste heat recovery unit can lead out the high-temperature oil, and then lead out the heat in the oil through heat exchange, use this part of the heat to heat the water, reuse it, and provide hot water to the lithium bromide unit as a heat source.

[0021] However, the current waste heat units operate according to fixed procedures and do not perform intelligent adjustments, which will cause the actual output water temperature to be unstable. In addition, if the air compressor lubricating oil temperature is too high, the cooling tower needs to be used for more heat dissipation. If effective heat dissipation cannot be achieved, not only will the heat dissipation be incomplete, but the water in the cooling tower cannot be effectively utilized, which will actually cause energy waste. Therefore, how to accurately control the water temperature of the waste heat unit and produce a stable heat source more efficiently is a technical problem that needs to be solved in this field.

[0022] In conjunction with the accompanying drawings, the intelligent control method, device, terminal equipment and medium of the waste heat unit provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0023] Embodiment 1 Figure 1It is a schematic flow chart of the intelligent control method for the waste heat unit provided in the first embodiment of the present application. As Figure 1 shown, it specifically includes the following steps: S101, obtain the oil temperature parameters and water circulation parameters of the waste heat unit; wherein, the oil temperature parameters include the inlet oil temperature and the outlet oil temperature, and the water circulation parameters include the water circulation speed and the outlet water temperature; First of all, the present application is applicable to the scenario of waste heat unit control. Based on the above usage scenario, it can be understood that the execution subject of the present application can be a waste heat unit control system or a terminal device that performs control operations.

[0024] Among them, the waste heat unit is a device that recovers the waste heat generated in the industrial production process and converts it into useful energy. In different industrial scenarios, the form and working principle of the waste heat unit will be different. For example, in a steel plant, the waste heat unit can recover the heat of the high-temperature waste gas generated in the blast furnace ironmaking process; in a chemical plant, it may recover the waste heat released during the chemical reaction process.

[0025] The oil temperature parameters, parameters related to the temperature of the oil in the waste heat unit, specifically include the inlet oil temperature and the outlet oil temperature. The inlet oil temperature refers to the temperature when the oil enters the waste heat unit, and the outlet oil temperature is the temperature when the oil leaves the waste heat unit. These two temperatures reflect the heat exchange situation of the oil in the waste heat unit. Among them, the inlet oil temperature and the outlet oil temperature can be measured using a high-precision non-contact infrared temperature sensor, which can respond quickly and avoid direct contact with the oil liquid, reducing the risk of pollution.

[0026] The water circulation parameters can be the relevant parameters of the water circulation system in the waste heat unit, including the water circulation speed and the outlet water temperature. The water circulation speed refers to the speed at which water flows in the circulation system, which will affect the heat exchange efficiency between water and oil. The outlet water temperature is the temperature when the water flows out of the water circulation system.

[0027] The water circulation speed, the distance or volume that water flows per unit time in the circulation system, can be controlled by the opening size of the inlet valve and can also be measured using an ultrasonic Doppler flowmeter.

[0028] This solution can collect relevant parameter information through various sensors and measurement devices. For the oil temperature parameters, an infrared temperature sensor is used to obtain the inlet and outlet oil temperatures; for the water circulation parameters, the water circulation speed can be determined by identifying the opening position of the inlet valve, and a high-precision temperature sensor can be used to identify the outlet water temperature.

[0029] S102, collect the operating state parameters of the air compressor; An air compressor, also known as an air compressor, is a device that converts the mechanical energy of an electric motor into gas pressure energy and is widely used in industrial production to provide compressed air. The operating state parameters of an air compressor are various parameters that reflect the operating conditions of the air compressor, such as rotational speed, power, pressure ratio, and displacement. Among them, the rotational speed represents the speed at which the air compressor rotates, the power reflects the electrical energy it consumes, the pressure ratio is the ratio of the intake pressure to the exhaust pressure, and the displacement is the volume of gas discharged by the air compressor per unit time.

[0030] This solution can more reasonably control the waste heat unit through the operating state parameters of the air compressor. For example, if the current operating state of the air compressor is high-load operation, it is necessary to control the water circulation parameters, such as adjusting the water circulation speed to the maximum, etc., to absorb the heat of the air compressor and keep the outlet water temperature of the waste heat unit fixed.

[0031] S103, input the oil temperature parameter, the water circulation parameter, and the air compressor operating state parameter into the waste heat unit control model, and let the waste heat unit control model combine the air compressor operating state parameter to predict the change of the outlet water temperature in the water circulation parameter; The waste heat unit control model can be a model constructed based on mathematical algorithms and machine learning technologies and is used to predict and control the operation of the waste heat unit. In this solution, a deep learning algorithm, such as Long Short-Term Memory (LSTM), can be used and combined with a reinforcement learning mechanism to construct. By learning a large amount of historical operation data, this model can master the complex relationships among the oil temperature parameter, the water circulation parameter, and the air compressor operating state parameter, so as to predict the change of the outlet water temperature. Among them, the LSTM network can process time series data and learn the laws and mutual relationships of the oil temperature parameter, the water circulation parameter, and the air compressor operating state parameter, etc., that change over time; reinforcement learning, according to the operating goal of the system, such as a constant outlet water temperature, optimizes the control strategy through continuous trial and error and reward mechanisms. In addition, the waste heat unit control model also incorporates the principles and formulas of related disciplines such as thermodynamics and fluid mechanics to accurately describe the heat exchange and energy conversion processes inside the waste heat unit.

[0032] Using the waste heat unit control model, based on the current input information such as the oil temperature parameter, the water circulation parameter, and the air compressor operating state parameter, and combining the algorithms and learned knowledge inside the model, estimate the possible changes in the outlet water temperature in the next period of time. The prediction results include information such as the change trend of the outlet water temperature, such as rising, falling, or remaining stable, and the change amplitude, etc., providing a basis for subsequent control decisions.

[0033] This solution can take the collected oil temperature parameters, water circulation parameters, and air compressor operating state parameters as data inputs into the waste heat unit control model, providing a basis for the model's calculation and prediction. When predicting the change in the outlet water temperature, the waste heat unit control model comprehensively considers the impact of the air compressor operating state parameters on the water temperature. For example, when the power of the air compressor increases, more heat may be generated, affecting the heat exchange process of the waste heat unit and thus the outlet water temperature. Based on the input parameters, the waste heat unit control model uses its internal algorithms and learned rules to estimate the change in the outlet water temperature in the water circulation parameters over a period of time in the future.

[0034] S104, use the waste heat unit control model to generate a water circulation control instruction aiming at a constant outlet water temperature according to the prediction result of the outlet water temperature change, and control the water circulation speed; The water circulation control instruction can be a series of control signals generated by the waste heat unit control model according to the prediction result of the outlet water temperature change, used to guide the actions of the actuators in the water circulation system. These instructions contain specific adjustment requirements for the water circulation speed. For example, the instruction may require increasing the water circulation speed by a certain percentage or reducing it to a specific value. It may also involve operation instructions for other related devices, such as adjusting the opening degree of valves and controlling the start and stop of pumps, to achieve precise control of the water circulation system.

[0035] Constant outlet water temperature means setting a target outlet water temperature value as the control target for the operation of the waste heat unit. During actual operation, by adjusting control means such as the water circulation speed, the outlet water temperature is made to be as stably maintained near this target value as possible, allowing a certain fluctuation range. For example, if the control target is 80°C, the fluctuation range can be set according to actual needs, such as ±1°C, etc. Keeping the outlet water temperature constant helps improve the operation efficiency and stability of the waste heat unit and meet the water temperature requirements of subsequent production processes.

[0036] In this solution, by invoking the waste heat unit control model and using its prediction results of the outlet water temperature change and the internal control algorithm, the generation calculation of control instructions is performed. The model evaluates the effects of different control strategies based on the current system state, the predicted temperature change trend, and the goal of constant outlet water temperature, and selects the optimal control scheme. Based on the analysis of the prediction results of the outlet water temperature change, the waste heat unit control model calculates the water circulation control instructions required to achieve a constant outlet water temperature according to the pre-set control rules and algorithms, and sends them to the actuator controller of the water circulation system. The actuators of the water circulation system, such as high-precision variable-frequency water pumps and electric control valves, adjust their working states according to the instructions after receiving the water circulation control instructions. For example, the variable-frequency water pump adjusts the motor speed according to the instructions, thereby changing the water circulation speed; the electric control valve adjusts the valve opening to control the water flow. Through these precise operations, the control of the water circulation speed is achieved, and then the outlet water temperature is adjusted to approach the set constant value.

[0037] S105, establish a digital twin model based on the temperature data collected by the temperature sensors in the waste heat unit and the water circulation parameters, and perform dynamic display on the terminal device.

[0038] Among them, the digital twin model can be a digital virtual mapping of the waste heat unit and its water circulation system. It constructs a virtual model highly consistent with the actual physical system by collecting in real time the temperature data obtained by the temperature sensors and water circulation parameters such as speed and temperature, using advanced 3D modeling software such as Unity 3D and Unreal Engine, and using data processing techniques. This model is not only consistent with the actual equipment in geometric structure, but also can reflect in real time information such as the operating state, temperature distribution, and energy flow of the equipment.

[0039] The terminal device can be a device for users to interact with the digital twin model, including but not limited to computers, tablets, smartphones, and industrial touchscreens. These devices can be connected to the server of the digital twin model through the network, receive and display the real-time data and dynamic images of the model. Users can view the operating state of the waste heat unit, perform parameter settings, and control operations, etc., through the terminal device.

[0040] This solution first uses 3D modeling software to accurately model the physical structure of the waste heat unit, including the equipment's external shape, internal pipeline layout, and heat exchange components. Then, it correlates and maps the real-time data such as the temperature data collected by temperature sensors and the water circulation parameters with the 3D model. Through data fusion technology, data from different sources are integrated to construct a digital twin model that can reflect the real-time operating status of the equipment. During the establishment process, the model also needs to be calibrated and verified to ensure its accuracy. This solution can use various temperature sensors to monitor the temperature changes of different parts of the waste heat unit in real time according to the preset sampling frequency, and convert the temperature signals into data forms that can be transmitted and processed. These data are sent to the data acquisition and processing system through wired or wireless data transmission methods, providing the latest temperature information for the update and analysis of the digital twin model. The server of the digital twin model transmits the processed model data and real-time operating information to the terminal device through the network. The terminal device uses graphics rendering technology to display the digital twin model to the user in the form of intuitive 3D images or charts. Users can perform interactive operations on the terminal device, such as zooming in and out of the model, viewing the temperature data of different parts, and understanding the operating status and performance indicators of the equipment.

[0041] In this embodiment, it should be additionally noted that if the waste heat unit can be precisely controlled to effectively absorb the temperature of the lubricating oil of the air compressor, it can not only ensure the normal operation of the air compressor, but also increase the output of hot water. For example, the original output of hot water per unit time was 4 tons, and after precise control, the output of hot water can be increased from the original 4 tons to 6 tons or more. This can also improve the energy utilization rate from another aspect, provide more applicable scenarios for the use of the produced hot water, achieve better energy conversion, and provide convenience for people's daily use.

[0042] This technical solution realizes the precise control of the outlet water temperature by accurately obtaining the oil temperature parameters, water circulation parameters, and air compressor operating status parameters of the waste heat unit and using an advanced waste heat unit control model for in-depth analysis and prediction. The control model combining deep learning and reinforcement learning can adapt to complex and changeable operating conditions and dynamically adjust the control strategy. At the same time, the digital twin model established based on real-time data provides users with an intuitive and comprehensive display of the equipment's operating status, facilitating real-time monitoring and management. Through these technical means, the energy utilization efficiency of the waste heat unit is improved, the stability of the outlet water temperature is ensured, the equipment failure and maintenance costs are reduced, and the intelligent level of the system is enhanced.

[0043] In one embodiment, optionally, the method further includes: When an operation instruction is received through the terminal device, the change parameters corresponding to the operation instruction are input into the waste heat unit control model to output the result prediction data of the current operation instruction based on the waste heat unit control model; Display the result prediction data for the user to confirm the operation instruction; After receiving the confirmation operation, execute the operation instruction to control the parameters of the waste heat unit.

[0044] Among them, the operation instruction can be an instruction sent by the user through the terminal device to the waste heat unit control system for changing the device operation state or parameters. These instructions can be the adjustment of the water circulation speed, the switching of the working mode of the waste heat recovery device, the re - setting of the oil temperature control range, etc. For example, the user may wish to increase the water circulation speed by 20%, and these requirements will be input into the system in the form of operation instructions through the terminal device.

[0045] The change parameter is the parameter that needs to be adjusted in the waste heat unit control model corresponding to the operation instruction. For example, when the operation instruction is to increase the water circulation speed, the change parameter is the specific change value of the water circulation speed, such as an increase of 20%.

[0046] The result prediction data can be the prediction data of the possible results generated by executing the operation instruction output by the waste heat unit control model according to the input change parameters, combined with the current operation state of the system, such as the oil temperature parameter, the water circulation parameter, the operation state parameter of the air compressor, etc., through internal algorithms and models. The result prediction data can include information such as the change trend of the outlet water temperature, the change of energy consumption, and the change of equipment operation efficiency. For example, it is predicted that after increasing the water circulation speed by 20%, the outlet water temperature will decrease by 8℃ within the next 10 minutes, and the energy consumption will increase by 5%.

[0047] The confirmation operation can be a clear decision made by the user on whether to execute the operation instruction after viewing the result prediction data. If the user believes that the result prediction data meets the expectations and can accept the possible results after the execution of the operation instruction, the user will perform a confirmation operation through the terminal device to inform the system that the corresponding operation instruction can be executed; otherwise, if the user believes that the result prediction data does not meet the expectations, the operation instruction may be modified or the execution may be abandoned.

[0048] In this solution, the terminal device listens to the user's input operations in real time. When the user issues an operation instruction through the operation interface of the terminal device, the terminal device can accurately identify and obtain this instruction information. Then, it transmits the change parameters corresponding to the operation instruction to the waste heat unit control model. Specifically, the operation instruction can be parsed to extract the change parameters, and these parameters are input into the model according to the data format and interface specifications required by the control model. After receiving the change parameters, the waste heat unit control model uses its internal algorithm to process and calculate the input data. By simulating and analyzing the heat exchange process and energy conversion relationship of the system, the model obtains the possible results after executing the operation instruction and outputs these results in the form of data. The output result prediction data can be in the form of numerical values, charts, text descriptions, etc., which is convenient for users to understand and evaluate. This solution can display the result prediction data output by the waste heat unit control model on the screen of the terminal device. For example, the temperature change trend can be displayed with a line chart, and the energy consumption change can be represented by a bar chart. At the same time, relevant information can also be described in words. Through the intuitive display, users can clearly understand the possible impacts of executing the operation instruction. After viewing the result prediction data displayed on the terminal device, the user, according to their own needs and judgments, performs a confirmation operation through the operation interface of the terminal device. This operation usually manifests as clicking the "confirm" button, entering a password, etc., to clearly indicate agreement to execute the operation instruction. After receiving the user's confirmation operation, the terminal device converts the operation instruction into a specific control signal and sends it to each actuator of the waste heat unit, such as water pumps, valves, and heating devices. The actuator adjusts its working state according to the received control signal and performs corresponding control on the parameters of the waste heat unit, thereby achieving the change in the equipment operating state expected by the user.

[0049] In this technical solution, after the user issues an operation instruction through the terminal device, the waste heat unit control model is used to predict the result of the operation instruction, and the prediction data is displayed for the user to confirm. This process provides a decision-making reference for the user and avoids problems such as equipment failures, energy waste, or non-compliance with production requirements that may be caused by blindly executing operation instructions. Through result prediction, the user can understand in advance the impact of the operation instruction on the operation of the waste heat unit, and thus decide whether to execute the operation instruction or adjust the operation instruction according to the actual situation. After the user's confirmation, the operation instruction is executed, ensuring the accuracy of the parameter control of the waste heat unit and improving the operation efficiency and stability of the equipment.

[0050] In one embodiment, optionally, the method further includes: Obtain the connection relationship information and the internal pipeline distribution information of the waste heat unit; Construct a hydrodynamic model for each cooling tower in the waste heat unit according to the connection relationship information and the internal pipeline distribution information; Correspondingly, establish a digital twin model based on the temperature data collected by the temperature sensors in the waste heat unit and the water circulation parameters, and dynamically display it on the terminal device, including: Establish a digital twin model based on the temperature data collected by the temperature sensors in the waste heat unit, the water circulation parameters, and the hydrodynamic model, and dynamically display it on the terminal device.

[0051] Among them, the connection relationship information may refer to information such as the connection methods and connection sequences between various devices and components inside the waste heat unit. For example, the pipeline connection method between the waste heat recovery device and the cooling tower, such as series or parallel, the connection position of the water pump and the water circulation pipeline, the installation position of each valve in the pipeline system and its connection relationship with other components. These connection relationship information is crucial for understanding the material flow and energy flow paths inside the waste heat unit.

[0052] The internal pipeline distribution information describes the specific layout of various pipelines such as the water circulation pipeline and the oil pipeline inside the waste heat unit. It includes the pipeline orientation, such as horizontal, vertical or inclined, pipe diameter size, bending radius, the positions of pipeline branches and confluence points, etc. Detailed internal pipeline distribution information helps to accurately simulate the flow characteristics of fluids in the pipelines and the heat transfer process.

[0053] The hydrodynamic model can be a mathematical model constructed based on hydrodynamic principles such as the continuity equation, momentum equation, and energy equation, which is used to describe the flow state and interaction of fluids in the cooling tower. For each cooling tower, this model takes into account parameters such as the velocity, pressure, temperature, and density of the fluid, as well as the interaction between the fluid and components such as the packing and fan in the tower. Through this model, the water flow distribution, air flow resistance, and heat exchange efficiency in the cooling tower can be predicted, providing theoretical support for the operation optimization of the waste heat unit.

[0054] The digital twin model can, on the original basis, more precisely perform digital virtual mapping of the waste heat unit by combining the above-mentioned connection relationship information, internal pipeline distribution information, and hydrodynamic model. It can not only reflect the geometric structure and operating state parameters of the equipment, but also simulate the flow and heat exchange process of fluids in the unit, and display the spatial distribution of parameters such as temperature, pressure, and flow rate in real time, providing users with more comprehensive and in-depth equipment operation information.

[0055] In this technical solution, connection relationship information and internal pipeline distribution information of the waste heat recovery unit are collected through various methods. Specifically, relevant information can be obtained by referring to technical documents such as the design drawings and installation manuals of the equipment; or the waste heat recovery unit can be scanned using 3D laser scanning technology to generate a high-precision 3D model, from which the connection relationship and pipeline distribution information are extracted. According to the obtained connection relationship information and internal pipeline distribution information, this solution uses professional numerical calculation software and mathematical modeling methods to establish a fluid dynamics model for each cooling tower. During the construction process, it is necessary to accurately model the geometric structure of the cooling tower, set reasonable boundary conditions such as inlet flow rate, temperature, and pressure, and set relevant physical parameters such as the density, viscosity, and thermal conductivity of the fluid, and select the finite element method or the finite volume method to solve the fluid dynamics equation, so as to obtain accurate model results.

[0056] Based on the digital twin model established by collecting temperature data and water circulation parameters through temperature sensors, this solution further combines the calculation results of the fluid dynamics model. The temperature data, water circulation parameters, and information on fluid flow and heat exchange in the fluid dynamics model are integrated, and using 3D modeling software and data processing technology, a more realistic and accurate digital twin model is constructed. During the establishment process, it is necessary to calibrate and match data from different sources to ensure that the model can accurately reflect the actual operating state of the waste heat recovery unit. The established digital twin model is transmitted to the terminal device through the network, and using the graphics processing and display functions of the terminal device, the relevant information of the model is displayed dynamically, allowing users to view the temperature distribution inside the waste heat recovery unit, the water flow situation, etc., and can also display the operation process and parameter changes of the equipment through 2D or 3D animations, enabling users to intuitively understand the real-time operating state of the waste heat recovery unit.

[0057] In this technical solution, by obtaining the connection relationship information and internal pipeline distribution information of the waste heat recovery unit, constructing a fluid dynamics model of the cooling tower, and integrating it into the establishment process of the digital twin model, the accuracy and practicality of the digital twin model are significantly improved. The accurate fluid dynamics model can more realistically simulate the fluid flow and heat exchange process in the cooling tower, enabling the digital twin model to not only display the operating state parameters of the equipment but also reflect the spatial distribution and changes of the fluid. This provides users with more comprehensive and in-depth equipment operation information, helps users better understand the working principle and performance characteristics of the waste heat recovery unit, and thus make more scientific and reasonable operation decisions. At the same time, by dynamically displaying the digital twin model, users can monitor the operating state of the equipment in real time, timely discover potential problems and abnormal situations, take measures in advance for processing, improve the stability of the equipment, reduce equipment failures and maintenance costs, and further optimize the operating efficiency and energy utilization efficiency of the waste heat recovery unit.

[0058] In one embodiment, optionally, in a terminal device, a flow arrow is generated, the rotation speed of the flow arrow is determined according to the water circulation speed, and the display position of the flow arrow is determined according to the hydrodynamic model.

[0059] Among them, the flow arrow can be a graphical element in the digital twin model interface displayed on the terminal device, which is used to intuitively represent the flow direction and state of water or oil in the internal pipeline of the waste heat unit. It is presented in the form of an arrow, and its direction represents the flow direction of the fluid, and the relevant parameters of the fluid are reflected through different visual performances. For example, the rotation speed can be the speed at which the flow arrow rotates around its own center point. In this solution, the rotation speed can be associated with the water circulation speed, and through this association, users can more intuitively feel the change of the water circulation speed on the terminal device. The display position can be the specific coordinate position of the flow arrow in the digital twin model interface displayed on the terminal device. This position is calculated according to the hydrodynamic model and can accurately reflect the flow of the fluid at different positions inside the waste heat unit, helping users understand the distribution and flow direction of the fluid in the entire system.

[0060] This solution can determine the rotation speed of the flow arrow according to the water circulation speed and the display position of the flow arrow according to the hydrodynamic model in the terminal device, which can help determine at which positions the flow characteristics of the fluid are more obvious and it is necessary to display the flow arrow to represent. For example, display the flow arrow at the position where the fluid velocity is large or the flow direction changes significantly to highlight the flow state of the fluid. By analyzing and processing the calculation results of the model, these positions are converted into coordinates on the display interface of the terminal device, so as to determine the display position of the flow arrow.

[0061] In this technical solution, by generating a flow arrow in the terminal device and respectively determining its rotation speed and display position according to the water circulation speed and the hydrodynamic model, the visualization effect and information expression ability of the digital twin model are greatly enhanced. The rotation speed of the flow arrow intuitively reflects the change of the water circulation speed, enabling users to quickly perceive the speed of the water circulation without viewing specific values, which is convenient for timely discovering abnormalities in the water circulation system. And the display position determined according to the hydrodynamic model enables the flow arrow to accurately indicate the actual flow path and key positions of the fluid inside the waste heat unit, helping users more clearly understand the distribution and flow direction of the fluid in the entire system, and providing a more intuitive and effective tool for users to monitor, analyze and make decisions on the system.

[0062] In one embodiment, optionally, use the waste heat unit control model to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change, and control the water circulation speed, including: Using the waste heat unit control model, generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change and the fluid dynamics model, and control the water circulation speed.

[0063] Among them, the water circulation speed refers to the distance or volume that water flows per unit time in the water circulation system of the waste heat unit, and it is one of the key factors affecting the outlet water temperature. By adjusting the water circulation speed, the heat exchange efficiency between water and oil can be changed, so as to control the outlet water temperature.

[0064] This solution can call the waste heat unit control model, take the prediction result of the outlet water temperature change and the information provided by the fluid dynamics model as inputs, and use the internal algorithms and logics of the model for analysis and calculation. In this process, the model comprehensively considers various factors such as the temperature change trend, the flow characteristics of the fluid in the system, and the heat exchange situation, etc., to achieve precise control of the outlet water temperature. After receiving the prediction result of the outlet water temperature change and the relevant information of the fluid dynamics model, the waste heat unit control model calculates the control measures required to keep the outlet water temperature constant according to the preset control algorithm. These measures are converted into specific water circulation control instructions, and the instructions include the adjustment amount of the water circulation speed and the operation parameters of other related equipment. For example, if it is predicted that the outlet water temperature will rise, the model may generate an instruction to increase the water circulation speed to accelerate the heat removal speed, thus ensuring the consistency of the outlet water temperature.

[0065] Specifically, this solution can send the generated water circulation control instruction to the actuator of the water circulation system. For example, after receiving the instruction, the variable frequency water pump adjusts its own working state according to the instruction requirements. When the instruction requires increasing the water circulation speed, the water pump will increase the motor speed, so that the flow speed of water in the pipeline is accelerated; conversely, when the instruction requires reducing the water circulation speed, the water pump will reduce the motor speed. In this way, precise control of the water circulation speed is achieved, and then the outlet water temperature is adjusted to approach the set constant value.

[0066] In this technical solution, a fluid dynamics model is added when generating the water circulation control instruction, enabling the waste heat unit control model to more comprehensively and accurately consider the flow characteristics of the fluid inside the waste heat unit and the influence of the heat exchange process on the outlet water temperature. Compared with controlling only based on the prediction results of temperature changes, after introducing the fluid dynamics model, the control model can more precisely calculate the adjustment amount of the water circulation speed required to keep the outlet water temperature constant according to parameters such as the speed and pressure of the fluid at different positions. This helps improve the accuracy and timeliness of control, reduce the fluctuation of the outlet water temperature, enable the outlet water temperature to more stably maintain near the set value, thereby improving the operating efficiency and stability of the waste heat unit, further optimizing the effect of waste heat recovery and utilization. At the same time, it can also reduce energy consumption and the wear and maintenance costs of equipment.

[0067] Embodiment 2 Figure 2 It is a schematic flowchart of the intelligent control method for the waste heat unit provided in Embodiment 2 of this application. This solution makes a better improvement to the above embodiment. Specifically, the improvement is as follows: after extracting the semantic features and voiceprint features from the voice information, the method further includes: identifying whether the semantic features include a preset qualifier; if so, determining the priority of each control instruction according to the preset qualifier. As Figure 2 shown, it specifically includes the following steps: S201, obtain the oil temperature parameters of the waste heat unit and the water circulation parameters; wherein, the oil temperature parameters include the inlet oil temperature and the outlet oil temperature, and the water circulation parameters include the water circulation speed and the outlet water temperature; S202, collect the operating state parameters of the air compressor; S203, obtain the inlet water temperature of the water circulation and incorporate it into the water circulation parameters; Among them, the inlet water temperature of the water circulation can refer to the temperature when water enters the water circulation system of the waste heat unit. During the waste heat recovery process, the inlet water temperature is an important parameter, which will affect the heat exchange process between the entire water circulation system and the oil, and further affect the outlet water temperature. For example, a lower inlet water temperature means that the water has greater heat absorption potential, and it may make the outlet water temperature easier to reach the expected value.

[0068] The water circulation parameters are a set of parameters describing the operating state of the water circulation system, which previously included information such as the water circulation speed and the outlet water temperature. After incorporating the inlet water temperature into the water circulation parameters, it can more comprehensively reflect the thermal state of the water circulation system and provide richer data support for subsequent control and analysis.

[0069] S204, inputting the oil temperature parameter, the water circulation parameter and the air compressor operating state parameter into the waste heat unit control model, so that the waste heat unit control model combines the air compressor operating state parameter to predict the change of the outlet water temperature in the water circulation parameter; S205, using the waste heat unit control model to generate a water circulation control instruction based on the prediction result of the outlet water temperature change with the purpose of keeping the outlet water temperature constant, and controlling the water circulation speed and / or the inlet water temperature; In this scheme, in addition to the water circulation speed, the control object can also include the inlet water temperature. The control of the inlet water temperature can be achieved through some auxiliary equipment, such as preheaters, coolers, etc. Adjusting the inlet water temperature can also directly affect the heat exchange process between water and other heat sources, thereby affecting the outlet water temperature.

[0070] This solution can call the waste heat unit control model for analysis and calculation. After considering the new inlet water temperature parameters, the waste heat unit control model will more comprehensively evaluate various possible control strategies. According to the predicted results of the outlet water temperature change and the goal of constant outlet water temperature, the model will not only consider the adjustment of the water circulation speed, but also consider whether the inlet water temperature needs to be adjusted, thereby generating a water circulation control instruction containing requirements for water circulation speed and / or inlet water temperature control. For example, if the outlet water temperature is predicted to be too low, the model may generate an instruction to increase the inlet water temperature, and may also appropriately reduce the water circulation speed to increase the heating time of the water in the system.

[0071] S206, establishing a digital twin model through the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and dynamically displaying it on the terminal device.

[0072] This technical solution obtains the inlet water temperature of the water cycle and integrates it into the water cycle parameters, enriching the parameter information used for control, so that the waste heat unit control model can more comprehensively understand the thermal state of the water circulation system. On this basis, the control range is expanded from the simple water circulation speed to the water circulation speed and / or the inlet water temperature, enhancing the flexibility and accuracy of the control. When the outlet water temperature fluctuates, the control model can comprehensively consider adjusting the water circulation speed and the inlet water temperature according to the actual situation to more effectively keep the outlet water temperature constant. This helps to improve the operating efficiency of the waste heat unit and reduce energy waste, while also better meeting the requirements of different industrial production processes for outlet water temperature stability.

[0073] In one embodiment, optionally, the method further comprises: Taking the water circulation speed and the water inlet temperature as control variables, determining a sensitivity tensor of the water outlet temperature to the control variables; Correspondingly, using the waste heat unit control model, according to the prediction result of the outlet water temperature change, a water circulation control instruction is generated with the aim of keeping the outlet water temperature constant, and the water circulation speed and / or the inlet water temperature are controlled, including: Using the waste heat unit control model, according to the prediction result of the outlet water temperature change and the sensitivity tensor, a water circulation control instruction is generated with the aim of keeping the outlet water temperature constant, and the water circulation speed and / or the inlet water temperature are controlled.

[0074] Among them, the control variable can be a physical quantity that can be artificially adjusted during the control process of the waste heat unit. Taking the water circulation speed and the inlet water temperature as control variables means that the outlet water temperature can be affected by changing the values of these two parameters, so as to achieve the purpose of keeping the outlet water temperature constant.

[0075] The sensitivity tensor can be the rate-of-change relationship of the outlet water temperature with respect to the two control variables of the water circulation speed and the inlet water temperature. It reflects how a small change in each control variable will cause a change in the outlet water temperature. It is a multi-dimensional quantitative index that can comprehensively reflect the sensitivity between the control variable and the outlet water temperature. For example, the sensitivity tensor can tell us how much the outlet water temperature will change correspondingly and at what speed when the water circulation speed or the inlet water temperature changes by one unit.

[0076] In this solution, the sensitivity tensor of the outlet water temperature to the water circulation speed and the inlet water temperature can be calculated by methods such as experimental measurement, numerical simulation, or data analysis. In experimental measurement, under different working conditions, the water circulation speed and the inlet water temperature can be changed respectively, the corresponding outlet water temperature changes are recorded, and then the sensitivity is calculated based on these data. Numerical simulation is to use the mathematical model of the waste heat unit to simulate the outlet water temperature under different control variable values on the computer, and then obtain the sensitivity tensor. Data analysis is based on historical operation data, and statistical analysis methods are used to explore the relationship between the control variable and the outlet water temperature to determine the sensitivity tensor.

[0077] In this solution, the water circulation control instruction can be an instruction generated by the waste heat unit control model according to relevant information to regulate the water circulation system in order to keep the outlet water temperature constant, including the regulation requirements for the water circulation speed and / or the inlet water temperature.

[0078] This solution takes the predicted results of the outlet water temperature change and the sensitivity tensor as input information and provides it to the waste heat unit control model. The model will use this information for more accurate analysis and calculation to formulate appropriate control strategies. The waste heat unit control model combines the predicted results of the outlet water temperature change and the sensitivity tensor, considers the goal of constant outlet water temperature, and uses internal algorithms and logic to calculate the adjustment amount that needs to be made to the water circulation speed and / or the inlet water temperature, thereby generating specific water circulation control instructions. For example, if it is predicted that the outlet water temperature will rise and the sensitivity tensor shows that the change in the inlet water temperature has a greater impact on the outlet water temperature, the model may generate an instruction to lower the inlet water temperature and, in combination with the adjustment of the water circulation speed, to achieve a constant outlet water temperature.

[0079] This technical solution determines the sensitivity tensor of the outlet water temperature to the water circulation speed and the inlet water temperature, providing more detailed information for the waste heat unit control model, enabling the model to more accurately understand the relationship between the control variables and the outlet water temperature. Adding the sensitivity tensor when generating the water circulation control instructions allows the control model to more reasonably allocate the adjustment amounts for the water circulation speed and the inlet water temperature according to the sensitivity of different control variables. This helps to improve the accuracy and efficiency of control, reduce unnecessary adjustment actions, and more quickly bring the outlet water temperature to and maintain a constant level, thereby improving the operating stability and energy utilization efficiency of the waste heat unit and reducing the operating cost.

[0080] Embodiment III Figure 3 is a schematic structural diagram of the intelligent control device of the waste heat unit provided in Embodiment III of this application. As Figure 3 shown, the device includes: A parameter acquisition module 301, configured to acquire the oil temperature parameters and the water circulation parameters of the waste heat unit; wherein, the oil temperature parameters include the inlet oil temperature and the outlet oil temperature, and the water circulation parameters include the water circulation speed and the outlet water temperature; An operating state parameter acquisition module 302, configured to acquire the operating state parameters of the air compressor; A prediction module 303, configured to input the oil temperature parameters, the water circulation parameters, and the operating state parameters of the air compressor into the waste heat unit control model, so that the waste heat unit control model combines the operating state parameters of the air compressor to predict the change in the outlet water temperature in the water circulation parameters; A water circulation control module 304, configured to use the waste heat unit control model to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the predicted result of the outlet water temperature change, and control the water circulation speed; A dynamic display module 305, configured to establish a digital twin model through the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and perform dynamic display on the terminal device.

[0081] In an embodiment of the present application, a parameter acquisition module is configured to acquire the oil temperature parameters and water circulation parameters of a waste heat unit; wherein, the oil temperature parameters include the inlet oil temperature and the outlet oil temperature, and the water circulation parameters include the water circulation speed and the outlet water temperature; an operating state parameter acquisition module is configured to acquire the operating state parameters of an air compressor; a prediction module is configured to input the oil temperature parameters, the water circulation parameters, and the operating state parameters of the air compressor into a waste heat unit control model, and for the waste heat unit control model to combine the operating state parameters of the air compressor to predict the change of the outlet water temperature in the water circulation parameters; a water circulation control module is configured to use the waste heat unit control model to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change, and control the water circulation speed; a dynamic display module is configured to establish a digital twin model through the temperature data collected by a temperature sensor in the waste heat unit and the water circulation parameters, and perform dynamic display on a terminal device. Through the above technical solution, by controlling the water circulation parameters of the waste heat unit, the purpose of accurately controlling the outlet water temperature can be achieved, the energy utilization efficiency can be improved, and it is ensured that the output high-temperature water has sufficient stability as the heat source provided to the lithium bromide unit.

[0082] The intelligent control device of the waste heat unit in the embodiment of the present application can be a device, or a component, an integrated circuit, or a chip in a terminal. This device can be a mobile terminal device or a non-mobile terminal device. Exemplarily, the mobile terminal device can be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc., and the non-mobile terminal device can be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc. The embodiment of the present application does not make specific limitations.

[0083] The intelligent control device of the waste heat unit in the embodiment of the present application can be a device with an operating system. This operating system can be the Android operating system, the IOS operating system, or other possible operating systems. The embodiment of the present application does not make specific limitations.

[0084] The intelligent control device of the waste heat unit provided in the embodiment of the present application can implement each process implemented in the above Embodiments 1 to 4. To avoid repetition, it will not be elaborated here.

[0085] Embodiment 4 As Figure 4 shown, an embodiment of the present application further provides a cleaning device 400, including a processor 401, a memory 402, a program or instruction stored on the memory 402 and executable on the processor 401. When the program or instruction is executed by the processor 401, it implements each process of the above-mentioned embodiment of the intelligent control method for the waste heat unit, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0086] It should be noted that the terminal device in the embodiment of the present application includes the above-mentioned mobile terminal device and non-mobile terminal device.

[0087] Embodiment Five An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-mentioned embodiment of the intelligent control method for the waste heat unit, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0088] Wherein, the processor is the processor in the terminal device described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc, etc.

[0089] Embodiment Six Another embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above-mentioned embodiment of the intelligent control method for the waste heat unit, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0090] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0091] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0092] From the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions for causing a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0093] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit of the present application and the scope protected by the claims, can still make many forms, all of which fall within the protection scope of the present application.

[0094] The above is only the preferred embodiment of the present application and the technical principles applied. The present application is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, it may also include more other equivalent embodiments, and the scope of the present application is determined by the scope of the claims.

Claims

1. An intelligent control method for a waste heat unit, characterized in that: The method comprises: Obtaining oil temperature parameters and water circulation parameters of the waste heat unit; wherein the oil temperature parameters include oil inlet temperature and oil outlet temperature, and the water circulation parameters include water circulation speed and water outlet temperature; Collect air compressor operating status parameters; The oil temperature parameter, the water circulation parameter and the air compressor operating state parameter are input into the waste heat unit control model, so that the waste heat unit control model combines the air compressor operating state parameter to predict the change of the outlet water temperature in the water circulation parameter; Using the waste heat unit control model to predict the change in outlet water temperature, a water circulation control instruction is generated to control the water circulation speed with the purpose of keeping the outlet water temperature constant; A digital twin model is established by using the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and is dynamically displayed on the terminal device.

2. The intelligent control method of waste heat unit according to claim 1, characterized in that: The method further comprises: When an operation instruction is received through the terminal device, a change parameter corresponding to the operation instruction is input into the waste heat unit control model, so as to output result estimation data of the current operation instruction based on the waste heat unit control model; Display estimated result data for the user to confirm the operation instruction; After receiving the confirmation operation, the operation instruction is executed to control the parameters of the waste heat unit.

3. The intelligent control method of waste heat unit according to claim 1, characterized in that: The method further comprises: Obtaining the water inlet temperature of the water cycle and integrating it into the water cycle parameters; Accordingly, the waste heat unit control model is used to generate a water circulation control instruction based on the prediction result of the outlet water temperature change to keep the outlet water temperature constant, and the water circulation speed is controlled, including: The waste heat unit control model is used to generate water circulation control instructions based on the prediction results of the outlet water temperature change with the purpose of keeping the outlet water temperature constant, so as to control the water circulation speed and / or the inlet water temperature.

4. The intelligent control method of waste heat unit according to claim 3 is characterized in that: The method further comprises: Taking the water circulation speed and the water inlet temperature as control variables, determining a sensitivity tensor of the water outlet temperature to the control variables; Accordingly, the waste heat unit control model is used to generate a water circulation control instruction based on the prediction result of the outlet water temperature change for the purpose of keeping the outlet water temperature constant, and the water circulation speed and / or the inlet water temperature are controlled, including: The waste heat unit control model is used to generate water circulation control instructions for the purpose of keeping the outlet water temperature constant according to the prediction result of the outlet water temperature change and the sensitivity tensor, and the water circulation speed and / or the inlet water temperature are controlled.

5. The intelligent control method of waste heat unit according to claim 1, characterized in that: The method further comprises: Obtaining connection relationship information and internal pipeline distribution information of the waste heat unit; Constructing a fluid dynamics model of each cooling tower in the waste heat unit according to the connection relationship information and the internal pipeline distribution information; Accordingly, a digital twin model is established through the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and is dynamically displayed on the terminal device, including: A digital twin model is established by using the temperature data collected by the temperature sensor in the waste heat unit, the water circulation parameters, and the fluid dynamics model, and is dynamically displayed on a terminal device.

6. The intelligent control method of waste heat unit according to claim 5, characterized in that: In the terminal device, a flow arrow is generated, a rotation speed of the flow arrow is determined according to the water circulation speed, and a display position of the flow arrow is determined according to the fluid dynamics model.

7. The intelligent control method of a waste heat unit according to claim 5, characterized in that: Using the waste heat unit control model to predict the change in outlet water temperature, a water circulation control instruction is generated for the purpose of keeping the outlet water temperature constant, and the water circulation speed is controlled, including: The waste heat unit control model is used to generate water circulation control instructions for the purpose of maintaining a constant outlet water temperature according to the outlet water temperature change prediction result and the fluid dynamics model, and the water circulation speed is controlled.

8. An intelligent control device for a waste heat unit, characterized in that: The device comprises: A parameter acquisition module, used to acquire the oil temperature parameters and water circulation parameters of the waste heat unit; wherein the oil temperature parameters include the oil inlet temperature and the oil outlet temperature, and the water circulation parameters include the water circulation speed and the water outlet temperature; An operating status parameter acquisition module is used to acquire operating status parameters of the air compressor; A prediction module, used for inputting the oil temperature parameter, the water circulation parameter and the air compressor operating state parameter into the waste heat unit control model, so that the waste heat unit control model can predict the change of the outlet water temperature in the water circulation parameter in combination with the air compressor operating state parameter; A water circulation control module is used to generate a water circulation control instruction for the purpose of keeping the outlet water temperature constant by using the waste heat unit control model according to the prediction result of the outlet water temperature change, and to control the water circulation speed; The dynamic display module is used to establish a digital twin model through the temperature data collected by the temperature sensor in the waste heat unit and the water circulation parameters, and dynamically display it on the terminal device.

9. A terminal device, characterized in that: It includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the intelligent control method for a waste heat unit as described in any one of claims 1 to 7 are implemented.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the intelligent control method for a waste heat unit according to any one of claims 1 to 7 are implemented.

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