Modular general water heater intelligent control system

Abstract

The invention relates to the technical field of heating system control, and discloses a modular general water heater intelligent control system which comprises a central control module, a temperature monitoring module, a flow monitoring module, a pressure monitoring module, a power regulation and control module, an intelligent energy-saving module, a fault diagnosis module, a safety protection module, a user interaction module and a remote communication module. The central control module coordinates all the modules to work through a preset comprehensive control algorithm, and the temperature monitoring module is used for accurately measuring the water temperature in real time and transmitting data to the central control module to execute a power adjustment instruction. Through cooperative work of all the modules, high-precision temperature, flow and pressure monitoring and precise power regulation and control are achieved, the stability and reliability of hot water supply are ensured, an energy consumption prediction model is established through the intelligent energy-saving module on the basis of a machine learning algorithm, the operation mode and power output are optimized, and energy consumption is remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heating system control, and in particular to a modular comprehensive water heater intelligent control system. Background Art

[0002] Quanke heat exchange is a safe, hygienic, energy-saving and environmentally friendly indirect water heating system technology. It is a comprehensive, scientific, Chinese and Western integrated, new heat exchange method. At present, the level of science and technology is developing rapidly, people's demand for quality of life is increasing, people's lives can no longer do without hot water anytime and anywhere, and the application of Quanke water heaters is becoming more and more extensive.

[0003] In traditional water heater systems, a simple temperature control method is usually used. The water temperature control is not precise enough, resulting in unstable hot water supply. The monitoring method is relatively simple and cannot fully obtain key data such as water flow and pressure. The power regulation is also relatively rough, making it difficult to achieve efficient and energy-saving operation. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a modular comprehensive water heater intelligent control system, which solves the problem that the hot water system in the prior art is not perfect.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a modular general purpose water heater intelligent control system, including a central control module, a temperature monitoring module, a flow monitoring module, a pressure monitoring module, a power regulation module, an intelligent energy-saving module, a fault diagnosis module, a safety protection module, a user interaction module and a remote communication module;

[0006] The central control module coordinates the work of each module through a preset comprehensive control algorithm, which is: out =k1T+k2F+k3P+k4E, where P out is the output power of the water heater, T is the real-time monitored water temperature, F is the real-time water flow, P is the system pressure, E is the energy efficiency, k1, k2, k3, k4 are weight coefficients determined according to the actual working conditions and equipment characteristics;

[0007] The temperature monitoring module is used to accurately measure the water temperature in real time and transmit the data to the central control module to execute the power adjustment instruction;

[0008] The flow detection module is used to monitor the hot water flow and transmit the data to the central control module to execute the power adjustment instruction;

[0009] The pressure detection module is used to collect pressure data in real time for safety protection and power adjustment;

[0010] The power control module is used to accurately adjust the power of the heating element according to the instructions of the central control module;

[0011] The intelligent energy-saving module is used to optimize the operation mode and power output to save energy;

[0012] The fault diagnosis module is used to monitor operating parameters in real time, quickly and accurately identify the fault type and location and generate relevant information;

[0013] The safety protection module is used to take prompt measures to ensure the safety of the system and users when the system is abnormal;

[0014] The user interaction module is used to provide an operation interface for users to facilitate users to set parameters and view operating status and energy consumption information;

[0015] The remote communication module is used to upload operation data to realize remote monitoring and management, which is convenient for users to operate remotely.

[0016] Preferably, the temperature monitoring module uses a high-precision platinum resistance temperature sensor, which can accurately measure the water temperature inside the water heater in real time, with a measurement accuracy of ±0.01°C. The temperature data is transmitted to the central control module after analog-to-digital conversion, and is used to calculate and adjust the output power of the water heater. Its working formula is: T m＝ R*(T0+α*(T-T0)), where T m is the measured temperature, R is the resistance value of the platinum resistor, T0 is the reference temperature, and α is the resistance temperature coefficient.

[0017] Preferably, the flow detection module uses an electromagnetic flowmeter to monitor the flow of hot water in real time, with a measurement accuracy within ±0.5%. The flow data is transmitted to the central control module through a communication interface to participate in the calculation and regulation of the output power. The flow calculation formula is: F = Q / t, where F is the flow rate, Q is the volume flowing in a period of time, and t is the time.

[0018] Preferably, the pressure monitoring module collects the pressure data in the water heater system in real time through a pressure transmitter, with a measurement range of 0-10MPa and an accuracy of ±0.05MPa.

[0019] Preferably, the power regulation adopts an intelligent power controller, which can accurately adjust the power of the heating element of the water heater according to the instructions of the central control module, with an adjustment range of 10%-100% and an adjustment resolution of 1%. The response time of power regulation does not exceed 1 second to achieve fast and stable power control.

[0020] Preferably, the intelligent energy-saving module conducts in-depth mining and learning of the historical operating data of the water heater based on a machine learning algorithm, establishes an energy consumption prediction model, and intelligently optimizes the operating mode and power output of the water heater according to real-time operating parameters and the prediction model to achieve energy-saving operation.

[0021] Preferably, the fault diagnosis module monitors the temperature, flow, pressure, and power operating parameters of the water heater in real time and compares them with a preset normal range, adopts a fault diagnosis algorithm, quickly and accurately identifies the fault type and location, and generates a fault code and alarm information.

[0022] Preferably, the safety protection module has multiple safety protection functions including overvoltage protection, overcurrent protection, overheat protection, leakage protection and water shortage protection. When an abnormal situation is detected in the system, the power supply can be quickly cut off or corresponding emergency measures can be taken to ensure the safety of the system and users.

[0023] Preferably, the user interaction module includes a touch screen, buttons and a voice interaction interface, providing the user with an intuitive and convenient operation interface. The user can set the hot water temperature, water usage time and energy-saving mode parameters through the module, and can also view the operating status and energy consumption information of the water heater in real time.

[0024] Preferably, the remote communication module supports Wi-Fi, Bluetooth and 4G / 5G communication methods, and can upload the operating data of the water heater to the cloud server to realize remote monitoring and management. Users can access the operating information of the water heater anytime and anywhere through a mobile phone APP or a web page, and perform remote control operations.

[0025] The present invention provides a modular all-purpose water heater intelligent control system, which has the following beneficial effects:

[0026] 1. Through the collaborative work of various modules, the present invention realizes high-precision temperature, flow and pressure monitoring and precise power regulation, ensuring the stability and reliability of hot water supply. Through the intelligent energy-saving module, an energy consumption prediction model is established based on the machine learning algorithm, the operation mode and power output are optimized, and energy consumption is significantly reduced.

[0027] 2. The present invention effectively responds to various abnormal situations through multiple safety protection functions, greatly improving the safety of the system and users. Secondly, the user interaction module provides a convenient operation experience, and the remote communication function allows users to control the operating status of the water heater anytime and anywhere, realize intelligent management, meet the personalized needs of users, and bring great convenience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see attached Figure 1 The embodiment of the present invention provides a modular general purpose water heater intelligent control system, including a central control module, a temperature monitoring module, a flow monitoring module, a pressure monitoring module, a power regulation module, an intelligent energy-saving module, a fault diagnosis module, a safety protection module, a user interaction module and a remote communication module.

[0032] When the water heater is started, the high-precision platinum resistance temperature sensor in the temperature monitoring module starts working immediately. Assuming the initial water temperature is 30°C, the resistance value R measured by the sensor is 150Ω, the reference temperature T0 is 25°C, and the resistance temperature coefficient α is 0.00392, the formula T m =R×(T0+α×(T-T0)) to calculate the accurate water temperature T m The temperature is 30.05℃, and the data is transmitted to the central control module in real time.

[0033] At the same time, the electromagnetic flowmeter in the flow monitoring module also starts to monitor the water flow. In the first 5 seconds, the volume Q flowing is 1L. According to the formula F=Q / t, the flow F is calculated to be 0.2L / s, and the flow data is transmitted to the central control module through the communication interface.

[0034] The pressure monitoring module collects pressure data in real time through the pressure transmitter. Assuming that the system pressure is 3MPa at this time, this data is also quickly transmitted to the central control module.

[0035] After receiving the data from the temperature, flow and pressure monitoring modules, the central control module will control the temperature, flow and pressure according to the preset comprehensive control algorithm P out = k1T + k2F + k3P + k4E. Assuming that the weight coefficients k1, k2, k3, k4 and k4 are determined according to the actual working conditions and equipment characteristics, and the current energy efficiency E is 70%, the output power P of the water heater is calculated. out for:

[0036] Pout = 0.4 × 30.05 + 0.3 × 0.2 + 0.2 × 3 + 0.1 × 70 = 12.02 + 0.06 + 0.6 + 7 = 19.68 The central control module sends the calculated power command to the power control module, which uses an intelligent power controller to accurately adjust the power of the heating element of the water heater. Assume that the power needs to be adjusted from 20% to 40%, and the adjustment is completed within 1 second, so that the water heater runs at the new power.

[0037] During operation, the intelligent energy-saving module continuously collects and analyzes historical operation data and establishes an energy consumption prediction model based on a linear regression algorithm. The steps to establish the prediction model are as follows:

[0038] 1. Data collection and preprocessing: collect a large amount of historical operation data of water heaters, including water temperature (T), water flow (F), pressure (P), energy efficiency (E) and output power (P out ); Clean the data and handle missing values ​​and outliers;

[0039] 2. Construct new features, such as the product of water temperature and pressure (TP), the ratio of flow rate to pressure (F / P), etc. Suppose the constructed features are X1, X2, ..., X n ;

[0040] 3. Select the linear regression algorithm, the model formula is: E = β0 + β1X1 + β2X2 + ... + β n X n , where β0 is the intercept, β1, β2, ..., β n are regression coefficients. Use the training data to fit the model and determine the value of the coefficient;

[0041] 4. Use the test data to calculate evaluation indicators such as mean square error (MSE): Where m is the number of test samples, E i is the actual energy efficiency, For the predicted energy efficiency;

[0042] 5. Adjust model parameters or features based on the evaluation results, optimize the model, and deploy the optimized model to the actual system for real-time prediction.

[0043] When real-time operating parameters such as slow water temperature rise and low flow rate are met, the operating mode is intelligently optimized according to the model to reduce power output and save energy.

[0044] The fault diagnosis module monitors operating parameters such as temperature, flow, pressure and power in real time. If the water temperature is found to be abnormally high and exceeds the preset upper limit of the normal range of 80°C, or the flow rate suddenly drops to below the lower limit of the normal range of 0.1L / s, the fault diagnosis algorithm is immediately used for analysis to quickly and accurately identify possible fault types, such as heating element failure or pipe blockage, and determine the fault location. At the same time, a fault code and alarm information are generated to notify users and relevant maintenance personnel.

[0045] The safety protection module always remains vigilant. When the pressure collected by the pressure monitoring module exceeds 8MPa, the safety protection module quickly activates the overpressure protection function and cuts off the power supply to ensure the safety of the system and users.

[0046] The user can set the hot water temperature to 60℃, the water use time to 19:00-21:00 every day, and the energy-saving mode through the touch screen in the user interaction module. At the same time, the user can view the running status of the water heater in real time, such as the current water temperature of 45℃, the flow rate of 0.15L / s, and the energy consumption information of 5 degrees / hour.

[0047] The remote communication module supports Wi-Fi communication and uploads the real-time operation data of the water heater to the cloud server. Even if the user is not on site, he can access the operation information of the water heater anytime and anywhere through the mobile phone APP. If the water temperature does not reach the set value, remote control can be performed to increase the output power of the water heater.

[0048] To sum up, the modular general purpose water heater intelligent control system of the present invention can achieve precise control, energy-saving operation, fault diagnosis and safety protection, as well as convenient user interaction and remote management in practical applications, providing users with efficient, reliable and intelligent hot water supply solutions.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular all-purpose water heater intelligent control system, characterized in that: It includes central control module, temperature monitoring module, flow monitoring module, pressure monitoring module, power regulation module, intelligent energy-saving module, fault diagnosis module, safety protection module, user interaction module and remote communication module; The central control module coordinates the work of each module through a preset comprehensive control algorithm, which is: out =k1T+k2F+k3P+k4E, where P out is the output power of the water heater, T is the real-time monitored water temperature, F is the real-time water flow, P is the system pressure, E is the energy efficiency, k1, k2, k3, k4 are weight coefficients determined according to the actual working conditions and equipment characteristics; The temperature monitoring module is used to accurately measure the water temperature in real time and transmit the data to the central control module to execute the power adjustment instruction; The flow detection module is used to monitor the hot water flow and transmit the data to the central control module to execute the power adjustment instruction; The pressure detection module is used to collect pressure data in real time for safety protection and power adjustment; The power control module is used to accurately adjust the power of the heating element according to the instructions of the central control module; The intelligent energy-saving module is used to optimize the operation mode and power output to save energy; The fault diagnosis module is used to monitor operating parameters in real time, quickly and accurately identify the fault type and location and generate relevant information; The safety protection module is used to take prompt measures to ensure the safety of the system and users when the system is abnormal; The user interaction module is used to provide an operation interface for users to facilitate users to set parameters and view operating status and energy consumption information; The remote communication module is used to upload operation data to realize remote monitoring and management, which is convenient for users to operate remotely.

2. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The temperature monitoring module uses a high-precision platinum resistance temperature sensor, which can accurately measure the water temperature inside the water heater in real time, with a measurement accuracy of ±0.01°C. The temperature data is transmitted to the central control module after analog-to-digital conversion, and is used to calculate and adjust the output power of the water heater. Its working formula is: T m＝ R*(T0+α*(T-T0)), where T m is the measured temperature, R is the resistance value of the platinum resistor, T0 is the reference temperature, and α is the resistance temperature coefficient.

3. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The flow detection module adopts an electromagnetic flowmeter to monitor the flow of hot water in real time with a measurement accuracy within ±0.5%. The flow data is transmitted to the central control module through the communication interface to participate in the calculation and regulation of the output power. The flow calculation formula is: F=Q / t, where F is the flow rate, Q is the volume flowing in a period of time, and t is the time.

4. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The pressure monitoring module collects the pressure data in the water heater system in real time through the pressure transmitter, with a measurement range of 0-10MPa and an accuracy of ±0.05MPa.

5. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The power control adopts an intelligent power controller, which can accurately adjust the power of the heating element of the water heater according to the instructions of the central control module, with an adjustment range of 10%-100% and an adjustment resolution of 1%. The response time of power adjustment does not exceed 1 second to achieve fast and stable power control.

6. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The intelligent energy-saving module conducts in-depth mining and learning of the historical operation data of the water heater based on a machine learning algorithm, establishes an energy consumption prediction model, and intelligently optimizes the operation mode and power output of the water heater according to real-time operation parameters and the prediction model to achieve energy-saving operation.

7. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The fault diagnosis module monitors the temperature, flow, pressure, and power operating parameters of the water heater in real time and compares them with the preset normal range. It uses a fault diagnosis algorithm to quickly and accurately identify the fault type and location and generate a fault code and alarm information.

8. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The safety protection module has multiple safety protection functions such as overvoltage protection, overcurrent protection, overheat protection, leakage protection and water shortage protection. When an abnormal situation is detected in the system, it can quickly cut off the power supply or take corresponding emergency measures to ensure the safety of the system and users.

9. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The user interaction module includes a touch screen, buttons and a voice interaction interface, providing users with an intuitive and convenient operation interface. Users can set hot water temperature, water use time and energy-saving mode parameters through this module, and can also view the operating status and energy consumption information of the water heater in real time.

10. A modular general purpose water heater intelligent control system according to claim 1, characterized in that: The remote communication module supports Wi-Fi, Bluetooth and 4G / 5G communication methods, and can upload the operating data of the water heater to the cloud server to realize remote monitoring and management. Users can access the operating information of the water heater anytime and anywhere through the mobile phone APP or web page, and perform remote control operations.

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