Intelligent temperature control system and algorithm for water conservancy dam

Abstract

The invention provides an intelligent temperature control system and algorithm for a water conservancy dam. The intelligent temperature control system for the water conservancy dam comprises a core control module, a data acquisition module and an execution control module, the intelligent temperature control algorithm for the water conservancy dam comprises the following steps: selecting functional modules; parameter setting and instruction issuing; collecting data; monitoring and judging data; executing procedures according to an algorithm; the process is finished; according to the invention, the control efficiency and precision can be improved, the safety and stability are enhanced, and full-period temperature control management can be realized.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy dam construction technology, specifically relating to an intelligent temperature control system and algorithm for water conservancy dams. Background Technology

[0002] In current water conservancy dam temperature control operations, temperature monitoring equipment such as thermocouple thermometers and infrared thermometers are widely used, which can realize the basic data recording of dam body temperature and ambient temperature. However, there are significant shortcomings in the level of automation and integration at the control end.

[0003] Currently, core aspects such as cooling water flow regulation, curing spray activation and deactivation, and insulation layer control still rely on manual labor. A single flow regulation takes 2-4 minutes, causing internal concrete temperature fluctuations to frequently exceed the ±2℃ allowable range. Furthermore, each poured block requires 1-2 personnel to be on-site throughout the process. This system suffers from inherent defects such as response lag, insufficient accuracy, and high labor costs, severely impacting temperature stability.

[0004] Meanwhile, existing systems are mostly single-area, single-loop designs, which cannot meet the synchronous temperature control requirements of multiple dam casting blocks. They also lack emergency braking and mode switching mechanisms in case of sudden temperature rises / falls, sensor failures, or other emergencies. When temperature stress exceeds tensile strength, concrete cracks are likely to occur.

[0005] Furthermore, from the perspective of full-cycle management, the current system is fragmented across different stages such as construction, maintenance, and operation, failing to form a unified temperature control process. The transition between each stage relies on manual intervention to switch equipment and reset parameters. This artificially interrupts the intelligent chain from instruction issuance to execution feedback and then to dynamic adjustment based on data, making it impossible to form a coherent and data-driven intelligent control system. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an intelligent temperature control system and algorithm for water conservancy dams that improves control efficiency and accuracy, enhances safety and stability, and facilitates full-cycle temperature control management.

[0007] The technical solution of this invention is: an intelligent temperature control system for water conservancy dams, comprising:

[0008] The core control module is used to set temperature control parameters, display the real-time status of the system, and send control commands to each execution unit.

[0009] The data acquisition module is communicatively connected to the core control module. The data acquisition module includes a temperature sensor embedded in the concrete to monitor the temperature of the center and surface of the dam body, an environmental sensor deployed around the pouring area to collect ambient temperature and humidity, and a flow sensor installed in the cooling water pipeline to monitor the water flow.

[0010] An execution control module is communicatively connected to the core control module, and the execution control module includes:

[0011] Cooling water pipeline, wherein a regulating valve is provided on the cooling water pipeline to regulate the flow rate in order to achieve internal cooling of the dam concrete;

[0012] A maintenance spraying device, wherein the maintenance spraying device is equipped with a solenoid valve, which is used to achieve moisturizing and maintenance of the concrete surface of the dam body by controlling the on and off states.

[0013] A heating device, wherein the heating device is equipped with a relay or contactor for switching the power supply on and off in a low-temperature environment to achieve concrete insulation.

[0014] Furthermore, the core control module includes a concrete pouring temperature control module; the concrete pouring temperature control module is configured as follows:

[0015] Receives user-defined target temperature range, internal and external temperature difference threshold, and initial cooling water flow rate parameters;

[0016] Based on the real-time concrete core temperature and surface temperature data acquired by the data acquisition module;

[0017] When the internal temperature of the concrete exceeds the upper limit of the target temperature range, the regulating valve is controlled to increase its opening to increase the cooling water flow rate.

[0018] When the temperature difference between the inside and the surface of the concrete exceeds the internal and external temperature difference threshold, the regulating valve is controlled to reduce its opening to decrease the cooling water flow rate.

[0019] Furthermore, the core control module includes a temperature and humidity control module for the curing period; the temperature and humidity control module for the curing period is configured as follows:

[0020] Receive user-defined target maintenance temperature, target humidity, heating start threshold, and spray start threshold;

[0021] The ambient temperature and humidity are acquired in real time based on the data acquisition module.

[0022] When the ambient temperature is lower than the heating start threshold, the heating device is automatically started, and the power gradient can be adjusted according to the temperature difference until the ambient temperature is not lower than the target curing temperature.

[0023] When the ambient humidity is lower than the spray activation threshold, the maintenance spray device is automatically activated to spray intermittently until the ambient humidity is not lower than the target humidity.

[0024] When the ambient temperature exceeds the set high temperature threshold, heating will automatically stop and the spray frequency will be increased.

[0025] Furthermore, the core control module includes a dam body temperature regulation module for operation; the dam body temperature regulation module for operation is configured as follows:

[0026] Receives user-defined target temperature range and adjustment range parameters;

[0027] When the temperature at the center of the dam body exceeds the upper limit of the target temperature range, the cooling water pipeline will be automatically activated and the ventilation equipment will be activated in conjunction with it.

[0028] When the temperature at the center of the dam body is lower than the lower limit of the target temperature range, the cooling water pipeline will be automatically shut off and a heat preservation prompt message will be generated.

[0029] The temperature change rate of the dam body is calculated in real time, and when the change rate exceeds a preset limit, the adjustment range of the actuator is automatically reduced.

[0030] Furthermore, the core control module includes an emergency response and mode switching module; the emergency response and mode switching module is configured as follows:

[0031] It offers three control modes: fully automatic, semi-automatic, and fully manual, and allows users to switch between these modes.

[0032] In the fully automatic mode, the system autonomously completes all monitoring and adjustment tasks according to preset logic;

[0033] In the semi-automatic mode, the system receives one or more sets of threshold parameters set by the user and automatically performs adjustments based on these parameters;

[0034] In the fully manual mode, the system responds to manual commands and directly controls the actions of each component in the execution control module;

[0035] When at least one of the abnormal operating conditions is detected, such as abnormal temperature change, continuous interruption of sensor data, or excessive pipeline pressure, the system will automatically trigger the braking and suspension function and simultaneously activate the audible and visual alarm.

[0036] Furthermore, the core control module also includes:

[0037] The user permission management module is used to assign differentiated system operation and parameter modification permissions to users at different levels;

[0038] The function selection module allows users to select and activate one or more of the following functional modules: concrete pouring temperature control module, curing period temperature and humidity control module, and operation period dam body temperature regulation module, and supports their parallel operation.

[0039] The parameter management module provides a parameter configuration interface and supports saving commonly used parameter groups as templates for later use.

[0040] The status monitoring and alarm module is used to centrally display real-time data from each monitoring area and trigger multi-level alarms when data is abnormal.

[0041] The data visualization module is used to dynamically generate trend charts of key parameters in the temperature control process based on historical and real-time data.

[0042] The report generation module is used to automatically summarize and output temperature control reports that include key process parameters, process data, and operation records;

[0043] The system expansion interface is used to provide data and control channels for subsequent access to external environmental control equipment or multi-dam collaborative management systems.

[0044] The intelligent temperature control algorithm for water conservancy dams includes the following steps:

[0045] Step 1, Functional Module Selection: In response to user operation, select one or more functional modules from the concrete pouring temperature control module, the curing period temperature and humidity control module, and the operation period dam body temperature regulation module;

[0046] Step 2, parameter setting and command issuance: Receive and load the temperature control parameters set by the user, display the real-time status of the system, and issue control commands to the execution unit;

[0047] Step 3, Data Acquisition: The real-time status data of the dam body and the environment are periodically acquired through the data acquisition module. The status data includes the temperature of the dam body center and surface, the ambient temperature and humidity around the pouring area, and the flow rate of the cooling water pipeline.

[0048] Step 4, Data Monitoring and Judgment: If at least one of the following abnormal conditions is detected: abnormal temperature change, continuous interruption of sensor data, or pipeline pressure exceeding the limit, the system braking and suspension function will be automatically triggered, and an audible and visual alarm will be activated simultaneously; if there is no abnormality, proceed to Step 5.

[0049] Step 5, execute the process according to the algorithm: Based on the functional module selected in step 1, execute its corresponding preset temperature control algorithm, generate the corresponding control command and send it to the execution control module;

[0050] Step 6: The process is completed, the operation stops automatically, and a process report is generated.

[0051] Furthermore, the preset temperature control algorithm in the concrete pouring temperature control module includes the following steps:

[0052] Acquire the user-inputted target temperature range, internal and external temperature difference threshold, and initial cooling water flow parameters; based on real-time collected concrete core temperature and surface temperature data;

[0053] When the internal temperature of the concrete exceeds the upper limit of the target temperature range, a control command is generated and sent to the regulating valve to increase its opening and thus increase the cooling water flow rate.

[0054] When the temperature difference between the inside and the surface of the concrete exceeds the internal and external temperature difference threshold, a control command is generated and sent to the regulating valve to reduce its opening and thus reduce the cooling water flow.

[0055] Furthermore, the preset temperature control algorithm in the maintenance period temperature and humidity control module includes the following steps:

[0056] The system acquires user-inputted target maintenance temperature, target humidity, heating start threshold, and spray start threshold; based on real-time collected environmental temperature and humidity data.

[0057] When the ambient temperature is lower than the heating start threshold, a control command is generated and issued to start the heating device, and the heating power can be adjusted based on the temperature difference until the ambient temperature is not lower than the target curing temperature.

[0058] When the ambient humidity is lower than the spray activation threshold, a control command is generated and issued to activate the maintenance spray device to perform intermittent spraying until the ambient humidity is not lower than the target humidity.

[0059] When the ambient temperature exceeds the set high temperature threshold, a control command is generated and issued to stop heating and increase the spray frequency.

[0060] Furthermore, the preset temperature control algorithm in the dam body temperature regulation module during operation includes the following steps:

[0061] Obtain the target temperature range and adjustment range parameters set by the user;

[0062] When the temperature at the center of the dam body exceeds the upper limit of the target temperature range, a control command is generated and issued to start the cooling water pipeline.

[0063] When the temperature at the center of the dam body is lower than the lower limit of the target temperature range, a control command is generated and issued to shut down the cooling water pipeline and generate a heat preservation reminder message.

[0064] The temperature change rate of the dam body is calculated in real time, and when the change rate exceeds a preset limit, the adjustment range of the actuator is automatically reduced.

[0065] The beneficial effects of this invention are:

[0066] (1) In this invention, the core control module collects data in real time through the data acquisition module and automatically sends instructions to the execution control module using the algorithm, which eliminates parameter response lag and human operation error, improves control efficiency, accuracy and reliability, and can automatically control temperature throughout the entire cycle of pouring, curing and operation, which is conducive to realizing full-cycle temperature control management.

[0067] (2) The modular design allows the system to be easily expanded to monitor and manage multiple dam blocks at the same time, meeting the collaborative temperature control requirements of large-scale projects.

[0068] (3) The cooling water pipeline and the heating device work together to regulate the temperature of the dam body. Through the built-in algorithm of the core control module, the internal temperature fluctuation of the concrete can be strictly controlled within the target range, and the temperature difference between the inside and outside is also limited to below the safety threshold, thereby enhancing safety and stability. Attached Figure Description

[0069] Figure 1 This is a schematic diagram of the intelligent temperature control system for water conservancy dams in this invention.

[0070] Figure 2 This is a flowchart of the intelligent temperature control algorithm for water conservancy dams in this invention.

[0071] Figure 3 This is a flowchart of the temperature control algorithm for the concrete pouring temperature control module in this invention.

[0072] Figure 4 This is a flowchart of the temperature control algorithm for the temperature and humidity control module during the curing period in this invention. Detailed Implementation

[0073] Various exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the invention or its application or use. The invention can be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0074] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0075] like Figure 1 As shown, a smart temperature control system for a water conservancy dam is disclosed, comprising:

[0076] Core control module 1 is used to set temperature control parameters, display the real-time status of the system, and send control commands to each execution unit;

[0077] The data acquisition module 2 is communicatively connected to the core control module 1. The data acquisition module includes a temperature sensor 21 embedded in the concrete to monitor the temperature of the center and surface of the dam body, an environmental sensor 22 deployed around the pouring area to collect ambient temperature and humidity, and a flow sensor 23 installed in the cooling water pipeline 34 to monitor the water flow.

[0078] Execution control module 3 is communicatively connected to the core control module 1, and the execution control module 3 includes:

[0079] Cooling water pipe 34, wherein a regulating valve 31 is provided on the cooling water pipe 34 for regulating the flow rate to achieve internal cooling of the dam concrete;

[0080] The maintenance spray device 35 is equipped with a solenoid valve 32, which is used to achieve moisturizing and maintenance of the concrete surface of the dam body by controlling the on and off states.

[0081] Heating device 36, which is equipped with a relay or contactor 33, is used to switch the power supply on and off in a low-temperature environment to achieve concrete insulation.

[0082] In the above embodiments, the core control module 1 collects data in real time through the data acquisition module 2 and automatically sends instructions to the execution control module 3 using an algorithm. This eliminates parameter response lag and human error, improves control efficiency, accuracy, and reliability, and enables automated temperature control throughout the entire lifecycle of pouring, curing, and operation, facilitating full-cycle temperature control management. The modular design allows the system to be easily expanded to simultaneously monitor and manage multiple pouring blocks of the dam, meeting the collaborative temperature control requirements of large-scale projects. The cooling water pipeline 34 and the heating device 36 work together to regulate the dam body temperature. Through the built-in algorithm of the core control module, the internal temperature fluctuation of the concrete can be strictly controlled within the target range, and the internal and external temperature difference is also limited to below the safety threshold, enhancing safety and stability.

[0083] As an example of the core control module 1, the core control module 1 includes an industrial computer 11, a PLC controller 12, a touch display 13, and a wireless data acquisition and transmission module 14. The data acquisition module 2 is wirelessly connected to the wireless data acquisition and transmission module 14 to transmit the collected temperature data of the dam center and surface, the temperature and humidity data around the pouring area, and the water flow data of the cooling water pipeline 34.

[0084] The modular design of data acquisition module 2 allows for the deployment of a set of data acquisition modules 2 in multiple pouring blocks or testing areas at the construction site, enabling stable testing of multiple pouring blocks or testing areas.

[0085] In some embodiments, the core control module includes a concrete pouring temperature control module; the concrete pouring temperature control module is configured as follows:

[0086] Receives user-defined target temperature range, internal and external temperature difference threshold, and initial cooling water flow rate parameters;

[0087] Based on the real-time concrete core temperature and surface temperature data acquired by the data acquisition module;

[0088] When the internal temperature of the concrete exceeds the upper limit of the target temperature range, the regulating valve is controlled to increase its opening to increase the cooling water flow rate.

[0089] When the temperature difference between the inside and the surface of the concrete exceeds the internal and external temperature difference threshold, the regulating valve is controlled to reduce its opening to decrease the cooling water flow rate.

[0090] like Figure 3 As shown, this is an example of a concrete pouring temperature control module:

[0091] The user inputs the casting block number, the target temperature range of 18-22℃, the internal and external temperature difference limit of 25℃, and the initial flow rate of the cooling water pipe of 2m³ / h. 3 / h, data acquisition frequency is 1 time / 30 seconds, the algorithm automatically starts the temperature control process:

[0092] The temperature of the concrete center and surface, as well as the temperature of the cooling water, are collected in real time using temperature sensors.

[0093] When the concrete core temperature exceeds 22℃, the opening of the electric valve is automatically increased, with a flow rate increase of 0.2m³. 3 / h / time, until the temperature drops back to the target range;

[0094] When the temperature difference between the inside and outside exceeds 25℃, reduce the cooling water flow rate by 0.1m³ / h. 3 / h / times, to avoid excessive temperature stress.

[0095] In some embodiments, the concrete pouring temperature control module is equipped with an anti-repeated click mechanism; the anti-repeated click mechanism is configured to execute the same control command only once within a set time window to avoid sudden changes in flow and improve reliability; as an example, the set time window is 3 seconds, that is, the same command is only responded to once within 3 seconds.

[0096] In some embodiments, the core control module 1 includes a maintenance period temperature and humidity control module; the maintenance period temperature and humidity control module is configured as follows:

[0097] Receive user-defined target maintenance temperature, target humidity, heating start threshold, and spray start threshold;

[0098] The ambient temperature and humidity are acquired in real time based on the data acquisition module.

[0099] When the ambient temperature is lower than the heating start threshold, the heating device is automatically started, and the power gradient can be adjusted according to the temperature difference until the ambient temperature is not lower than the target curing temperature.

[0100] When the ambient humidity is lower than the spray activation threshold, the maintenance spray device is automatically activated to spray intermittently until the ambient humidity is not lower than the target humidity.

[0101] When the ambient temperature exceeds the set high temperature threshold, heating will automatically stop and the spray frequency will be increased.

[0102] like Figure 4 As shown, this is an example of a temperature and humidity control module during the maintenance period:

[0103] After the user inputs the maintenance area number, the target maintenance temperature of 5℃, the target humidity of 85%RH, the heating start threshold of 5℃, and the spray start threshold of 85%RH, the algorithm will execute automatically.

[0104] When the ambient temperature is <5℃, the heating device will be automatically activated. The heating device is an electric heating element, and the electric heating power is adjusted in gradients of 0.5kW, 1kW, and 2kW until the temperature is ≥5℃.

[0105] When the ambient humidity is <85%RH, the maintenance spray device will automatically turn on, spraying for 5 minutes each time, with an interval of 10 minutes, until the humidity is ≥85%RH;

[0106] When the temperature is above 30°C, the heating will automatically stop and the spraying frequency will be increased to prevent the maintenance environment from becoming too hot. As an example of increasing the spraying frequency, the spraying interval will be shortened from 10 minutes to 5 minutes.

[0107] In some embodiments, the core control module 1 includes a dam body temperature regulation module for operation; the dam body temperature regulation module for operation is configured as follows:

[0108] Receives user-defined target temperature range and adjustment range parameters;

[0109] When the temperature at the center of the dam body exceeds the upper limit of the target temperature range, the cooling water pipeline will be automatically activated and the ventilation equipment will be activated in conjunction with it.

[0110] When the temperature at the center of the dam body is lower than the lower limit of the target temperature range, the cooling water pipeline will be automatically shut off and a heat preservation prompt message will be generated.

[0111] The temperature change rate of the dam body is calculated in real time, and when the change rate exceeds a preset limit, the adjustment range of the actuator is automatically reduced.

[0112] As an example of a dam body temperature regulation module during operation:

[0113] After the user inputs the monitoring area number, the safe temperature range of 15-25℃, and the cooling / insulation switching threshold, the algorithm will execute automatically:

[0114] When the temperature is above 25℃, start the cooling water pipes and control the flow rate to 1.5m³. 3 / h, and activate the corridor ventilation accordingly;

[0115] When the temperature is <15℃, the cooling water pipe is shut off and the insulation layer prompt is triggered, reminding the user to manually lay insulation cotton through a software pop-up window;

[0116] The temperature change rate (°C / h) is calculated in real time. When the change rate is greater than 1°C / h, measures such as halving the flow rate increment are used to reduce the adjustment range and avoid sudden temperature changes.

[0117] In some embodiments, the core control module 1 includes an emergency response and mode switching module; the emergency response and mode switching module is configured as follows:

[0118] It offers three control modes: fully automatic, semi-automatic, and fully manual, and allows users to switch between these modes.

[0119] In the fully automatic mode, the system autonomously completes all monitoring and adjustment tasks according to preset logic;

[0120] In the semi-automatic mode, the system receives one or more sets of threshold parameters set by the user and automatically performs adjustments based on these parameters;

[0121] In the fully manual mode, the system responds to manual commands and directly controls the actions of each component in the execution control module;

[0122] When at least one of the abnormal operating conditions is detected, such as abnormal temperature change, continuous interruption of sensor data, or excessive pipeline pressure, the system will automatically trigger the braking and suspension function and simultaneously activate the audible and visual alarm.

[0123] As an example, when a temperature change rate greater than 2°C / minute is detected, it is determined to be an abnormal temperature change; if the sensor does not collect data for more than 1 minute, it is determined to be a continuous interruption of sensor data; if the pipeline pressure exceeds 1MPa, it is determined to be an over-limit pipeline pressure.

[0124] In some embodiments, the core control module further includes:

[0125] The user permission management module is used to assign differentiated system operation and parameter modification permissions to users at different levels;

[0126] The function selection module allows users to select and activate one or more of the following functional modules: concrete pouring temperature control module, curing period temperature and humidity control module, and operation period dam body temperature regulation module, and supports their parallel operation.

[0127] The parameter management module provides a parameter configuration interface and supports saving commonly used parameter groups as templates for later use.

[0128] The status monitoring and alarm module is used to centrally display real-time data from each monitoring area and trigger multi-level alarms when data is abnormal.

[0129] The data visualization module is used to dynamically generate trend charts of key parameters in the temperature control process based on historical and real-time data.

[0130] The report generation module is used to automatically summarize and output temperature control reports that include key process parameters, process data, and operation records;

[0131] The system expansion interface is used to provide data and control channels for subsequent access to external environmental control equipment or multi-dam collaborative management systems.

[0132] As an example of a data visualization module, it dynamically plots "temperature-time" and "flow-temperature" curves to intuitively present temperature control trends.

[0133] As an example of a report generation module, it automatically generates temperature control operation reports, including process parameters such as target temperature, process data such as temperature fluctuation records, and adjustment records such as valve opening changes; and supports table export and printing.

[0134] The intelligent temperature control system for water conservancy dams integrates parameter display, curve plotting, and report output functions, realizing a closed-loop temperature control data throughout the entire cycle, avoiding errors from manual recording, and providing accurate data support for dam temperature stress analysis and quality assessment; at the same time, it reserves expansion interfaces for stronger adaptability.

[0135] like Figure 2 As shown, a smart temperature control algorithm for water conservancy dams is disclosed, including the following steps:

[0136] Step 1, Functional Module Selection: In response to user operation, select one or more functional modules from the concrete pouring temperature control module, the curing period temperature and humidity control module, and the operation period dam body temperature regulation module;

[0137] Step 2, parameter setting and command issuance: Receive and load the temperature control parameters set by the user, display the real-time status of the system, and issue control commands to the execution unit;

[0138] Step 3, Data Acquisition: The real-time status data of the dam body and the environment are periodically acquired through the data acquisition module. The status data includes the temperature of the dam body center and surface, the ambient temperature and humidity around the pouring area, and the flow rate of the cooling water pipeline.

[0139] Step 4, Data Monitoring and Judgment: If at least one of the following abnormal conditions is detected: abnormal temperature change, continuous interruption of sensor data, or pipeline pressure exceeding the limit, the system braking and suspension function will be automatically triggered, and an audible and visual alarm will be activated simultaneously; if there is no abnormality, proceed to Step 5.

[0140] Step 5, execute the process according to the algorithm: Based on the functional module selected in step 1, execute its corresponding preset temperature control algorithm, generate the corresponding control command and send it to the execution control module;

[0141] Step 6: The process is completed, the operation stops automatically, and a process report is generated.

[0142] In some embodiments, the preset temperature control algorithm in the concrete pouring temperature control module includes the following steps:

[0143] Acquire the user-inputted target temperature range, internal and external temperature difference threshold, and initial cooling water flow parameters; based on real-time collected concrete core temperature and surface temperature data;

[0144] When the internal temperature of the concrete exceeds the upper limit of the target temperature range, a control command is generated and sent to the regulating valve to increase its opening and thus increase the cooling water flow rate.

[0145] When the temperature difference between the inside and the surface of the concrete exceeds the internal and external temperature difference threshold, a control command is generated and sent to the regulating valve to reduce its opening and thus reduce the cooling water flow.

[0146] In some embodiments, the preset temperature control algorithm in the maintenance period temperature and humidity control module includes the following steps:

[0147] The system acquires user-inputted target maintenance temperature, target humidity, heating start threshold, and spray start threshold; based on real-time collected environmental temperature and humidity data.

[0148] When the ambient temperature is lower than the heating start threshold, a control command is generated and issued to start the heating device, and the heating power can be adjusted based on the temperature difference until the ambient temperature is not lower than the target curing temperature.

[0149] When the ambient humidity is lower than the spray activation threshold, a control command is generated and issued to activate the maintenance spray device to perform intermittent spraying until the ambient humidity is not lower than the target humidity.

[0150] When the ambient temperature exceeds the set high temperature threshold, a control command is generated and issued to stop heating and increase the spray frequency.

[0151] In some embodiments, the preset temperature control algorithm in the dam body temperature regulation module during operation includes the following steps:

[0152] Obtain the target temperature range and adjustment range parameters set by the user;

[0153] When the temperature at the center of the dam body exceeds the upper limit of the target temperature range, a control command is generated and issued to start the cooling water pipeline.

[0154] When the temperature at the center of the dam body is lower than the lower limit of the target temperature range, a control command is generated and issued to shut down the cooling water pipeline and generate a heat preservation reminder message.

[0155] The temperature change rate of the dam body is calculated in real time, and when the change rate exceeds a preset limit, the adjustment range of the actuator is automatically reduced.

[0156] The technical solution and effects of the present invention will be further illustrated below through a specific engineering example.

[0157] Taking the temperature control construction of a concrete pouring block (number A1-01, size 10m×5m×3m) in a certain arch dam project as an example, the intelligent temperature control system and control algorithm of this invention are adopted, and the specific implementation steps are as follows:

[0158] 1. System installation and debugging

[0159] The temperature control cabinet was deployed in a temporary power distribution room near the A1-01 pouring block, connecting 8 temperature control circuits (2 of which were used for the A1-01 pouring block); 6 concrete temperature sensors were embedded in the pouring block (3 in the center and 3 on the surface), and 2 environmental sensors were deployed around it. Flow sensors and regulating valves were installed on the cooling water pipes; the sensors and control cabinet were connected through a wireless data acquisition and transmission module (transmission distance 250m, stable signal); the software system was debugged, the accuracy of the temperature sensors was calibrated (error ≤0.1℃), and administrator accounts (responsible for parameter configuration) and operator accounts (responsible for daily operation) were set up.

[0160] 2. Temperature control during concrete pouring

[0161] The operator logs into the software, selects the "Pouring Temperature Control Module," and enters the parameters:

[0162] Cast-in block number: A1-01;

[0163] Target temperature: 18-22℃;

[0164] Internal and external temperature difference limit: ≤25℃;

[0165] Initial flow rate of cooling water pipe: 2m 3 / h;

[0166] Data acquisition frequency: 1 time / 30 seconds.

[0167] After clicking "Start", the system will automatically perform temperature control:

[0168] Two hours after pouring, the core temperature of the concrete rose to 23.5℃ (exceeding the target upper limit). The algorithm automatically increased the opening of the regulating valve, reducing the flow rate from 2m³ / h. 3 / h / h increased to 2.4m 3 / h;

[0169] After 30 minutes, the core temperature dropped to 21.8℃, and the flow rate stabilized at 2.4m³. 3 / h;

[0170] Five hours after pouring, the surface temperature dropped to 17℃, and the temperature difference between the inside and outside reached 23.5℃ (close to the limit). The algorithm automatically reduced the flow rate to 2.2m³. 3 / h, the temperature difference drops back to 21℃;

[0171] The entire process requires no human intervention, with temperature fluctuations controlled between 18.2-23.5℃ (fluctuation range ±1.3℃) and a response time of ≤25 seconds.

[0172] 3. Temperature and humidity control during the maintenance period

[0173] After pouring is complete, switch to the "Cure Control Module" and input the parameters:

[0174] Maintenance area number: A1-01 surrounding area;

[0175] Target curing temperature: ≥5℃;

[0176] Target humidity: ≥85%RH;

[0177] Heating start-up threshold: <5℃;

[0178] Spray start-up threshold: <85%RH.

[0179] The system will execute automatically:

[0180] The ambient temperature dropped to 4.2℃ at night, and the algorithm activated the electric heating element (power increased from 0.5kW to 1kW). After 15 minutes, the temperature rose to 5.3℃.

[0181] In the afternoon, when the ambient humidity drops to 82% RH, the maintenance spray will automatically turn on (5 minutes / time, 10-minute interval), and the humidity will rise to 87% RH after 20 minutes;

[0182] During the maintenance period, the temperature and humidity met the standard requirements, and no human intervention was required.

[0183] 4. Verification of simultaneous operation in multiple areas

[0184] Simultaneously, the temperature control operation for casting blocks A1-02 and A1-03 is initiated, and the software interface displays the real-time status of each block in three windows:

[0185] Due to a slight blockage in the cooling water pipe, the flow rate of the A1-02 cast-in-place block decreased from 2m³ / h. 3 / h decreased to 1.2m 3 / h, when the core temperature rises to 24.1℃, the system automatically triggers braking and stops, issues a red warning, and notifies the administrator via SMS;

[0186] The administrator switches A1-02 to "semi-automatic mode" and manually adjusts the valve opening to the maximum (flow rate recovers to 1.8m³ / s). 3 The algorithm maintains temperature monitoring and fine-tuning ( / h), and the temperature drops back to 22℃ after 1 hour;

[0187] During simultaneous operations in multiple areas, only one operator is needed (compared to three in the traditional method), increasing efficiency by 67%.

[0188] The various embodiments of the present invention have now been described in detail. To avoid obscuring the concept of the invention, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0189] The embodiments described above only illustrate some implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An intelligent temperature control system for hydraulic dams, characterized in that, include: The core control module is used to set temperature control parameters, display the real-time status of the system, and send control commands to each execution unit. The data acquisition module is communicatively connected to the core control module. The data acquisition module includes a temperature sensor embedded in the concrete to monitor the temperature of the center and surface of the dam body, an environmental sensor deployed around the pouring area to collect ambient temperature and humidity, and a flow sensor installed in the cooling water pipeline to monitor the water flow. An execution control module is communicatively connected to the core control module, and the execution control module includes: Cooling water pipeline, wherein a regulating valve is provided on the cooling water pipeline to regulate the flow rate in order to achieve internal cooling of the dam concrete; A maintenance spraying device, wherein the maintenance spraying device is equipped with a solenoid valve, which is used to achieve moisturizing and maintenance of the concrete surface of the dam body by controlling the on and off states. A heating device, wherein the heating device is equipped with a relay or contactor for switching the power supply on and off in a low-temperature environment to achieve concrete insulation.

2. The intelligent temperature control system for water conservancy dams according to claim 1, characterized in that, The core control module includes a concrete pouring temperature control module; the concrete pouring temperature control module is configured as follows: Receives user-defined target temperature range, internal and external temperature difference threshold, and initial cooling water flow rate parameters; Based on the real-time concrete core temperature and surface temperature data acquired by the data acquisition module; When the internal temperature of the concrete exceeds the upper limit of the target temperature range, the regulating valve is controlled to increase its opening to increase the cooling water flow rate. When the temperature difference between the inside and the surface of the concrete exceeds the internal and external temperature difference threshold, the regulating valve is controlled to reduce its opening to decrease the cooling water flow rate.

3. The intelligent temperature control system for water conservancy dams according to claim 1, characterized in that, The core control module includes a temperature and humidity control module for the curing period; the temperature and humidity control module for the curing period is configured as follows: Receive user-defined target maintenance temperature, target humidity, heating start threshold, and spray start threshold; The ambient temperature and humidity are acquired in real time based on the data acquisition module. When the ambient temperature is lower than the heating start threshold, the heating device is automatically started, and the power gradient can be adjusted according to the temperature difference until the ambient temperature is not lower than the target curing temperature. When the ambient humidity is lower than the spray activation threshold, the maintenance spray device is automatically activated to spray intermittently until the ambient humidity is not lower than the target humidity. When the ambient temperature exceeds the set high temperature threshold, heating will automatically stop and the spray frequency will be increased.

4. The intelligent temperature control system for water conservancy dams according to claim 1, characterized in that, The core control module includes a dam body temperature regulation module for operation; the dam body temperature regulation module for operation is configured as follows: Receives user-defined target temperature range and adjustment range parameters; When the temperature at the center of the dam body exceeds the upper limit of the target temperature range, the cooling water pipeline will be automatically activated and the ventilation equipment will be activated in conjunction with it. When the temperature at the center of the dam body is lower than the lower limit of the target temperature range, the cooling water pipeline will be automatically shut off and a heat preservation prompt message will be generated. The temperature change rate of the dam body is calculated in real time, and when the change rate exceeds a preset limit, the adjustment range of the actuator is automatically reduced.

5. The intelligent temperature control system for water conservancy dams according to claim 1, characterized in that, The core control module includes an emergency response and mode switching module; the emergency response and mode switching module is configured as follows: It offers three control modes: fully automatic, semi-automatic, and fully manual, and allows users to switch between these modes. In the fully automatic mode, the system autonomously completes all monitoring and adjustment tasks according to preset logic; In the semi-automatic mode, the system receives one or more sets of threshold parameters set by the user and automatically performs adjustments based on these parameters; In the fully manual mode, the system responds to manual commands and directly controls the actions of each component in the execution control module; When at least one of the abnormal operating conditions is detected, such as abnormal temperature change, continuous interruption of sensor data, or excessive pipeline pressure, the system will automatically trigger the braking and suspension function and simultaneously activate the audible and visual alarm.

6. The intelligent temperature control system for water conservancy dams according to claim 1, characterized in that, The core control module also includes: The user permission management module is used to assign differentiated system operation and parameter modification permissions to users at different levels; The function selection module allows users to select and activate one or more of the following functional modules: concrete pouring temperature control module, curing period temperature and humidity control module, and operation period dam body temperature regulation module, and supports their parallel operation. The parameter management module provides a parameter configuration interface and supports saving commonly used parameter groups as templates for later use. The status monitoring and alarm module is used to centrally display real-time data from each monitoring area and trigger multi-level alarms when data is abnormal. The data visualization module is used to dynamically generate trend charts of key parameters in the temperature control process based on historical and real-time data. The report generation module is used to automatically summarize and output temperature control reports that include key process parameters, process data, and operation records; The system expansion interface is used to provide data and control channels for subsequent access to external environmental control equipment or multi-dam collaborative management systems.

7. A smart temperature control algorithm for hydraulic dams, characterized in that, Includes the following steps: Step 1, Functional Module Selection: In response to user operation, select one or more functional modules from the concrete pouring temperature control module, the curing period temperature and humidity control module, and the operation period dam body temperature regulation module; Step 2, parameter setting and command issuance: Receive and load the temperature control parameters set by the user, display the real-time status of the system, and issue control commands to the execution unit; Step 3, Data Acquisition: The real-time status data of the dam body and the environment are periodically acquired through the data acquisition module. The status data includes the temperature of the dam body center and surface, the ambient temperature and humidity around the pouring area, and the flow rate of the cooling water pipeline. Step 4, Data Monitoring and Judgment: If at least one of the following abnormal conditions is detected: abnormal temperature change, continuous interruption of sensor data, or pipeline pressure exceeding the limit, the system braking and suspension function will be automatically triggered, and an audible and visual alarm will be activated simultaneously; if there is no abnormality, proceed to Step 5. Step 5, execute the process according to the algorithm: Based on the functional module selected in step 1, execute its corresponding preset temperature control algorithm, generate the corresponding control command and send it to the execution control module; Step 6: The process is completed, the operation stops automatically, and a process report is generated.

8. The intelligent temperature control algorithm for water conservancy dams according to claim 7, characterized in that: The preset temperature control algorithm in the concrete pouring temperature control module includes the following steps: Obtain the user-inputted target temperature range, internal and external temperature difference threshold, and initial cooling water flow rate parameters; Based on real-time collected data on the core temperature and surface temperature of the concrete. When the internal temperature of the concrete exceeds the upper limit of the target temperature range, a control command is generated and sent to the regulating valve to increase its opening and thus increase the cooling water flow rate. When the temperature difference between the inside and the surface of the concrete exceeds the internal and external temperature difference threshold, a control command is generated and sent to the regulating valve to reduce its opening and thus reduce the cooling water flow.

9. The intelligent temperature control algorithm for water conservancy dams according to claim 7, characterized in that: The preset temperature control algorithm in the maintenance period temperature and humidity control module includes the following steps: Obtain the target maintenance temperature, target humidity, heating start threshold, and spray start threshold input by the user; Based on real-time collected environmental temperature and humidity data; When the ambient temperature is lower than the heating start threshold, a control command is generated and issued to start the heating device, and the heating power can be adjusted based on the temperature difference until the ambient temperature is not lower than the target curing temperature. When the ambient humidity is lower than the spray activation threshold, a control command is generated and issued to activate the maintenance spray device to perform intermittent spraying until the ambient humidity is not lower than the target humidity. When the ambient temperature exceeds the set high temperature threshold, a control command is generated and issued to stop heating and increase the spray frequency.

10. The intelligent temperature control algorithm for water conservancy dams according to claim 7, characterized in that: The preset temperature control algorithm in the dam body temperature regulation module during operation includes the following steps: Obtain the target temperature range and adjustment range parameters set by the user; When the temperature at the center of the dam body exceeds the upper limit of the target temperature range, a control command is generated and issued to start the cooling water pipeline. When the temperature at the center of the dam body is lower than the lower limit of the target temperature range, a control command is generated and issued to shut down the cooling water pipeline and generate a heat preservation reminder message. The temperature change rate of the dam body is calculated in real time, and when the change rate exceeds a preset limit, the adjustment range of the actuator is automatically reduced.

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