Heat supply network metering control device based on integration of programmable logic controller and touch industrial machine
By integrating high-precision sensors, programmable logic controllers and touch-controlled industrial machines, the problem of inaccurate metering of traditional thermal metering devices is solved, accurate measurement of heat and transparent billing are achieved, and the accuracy and efficiency of energy management are improved.
Patent Information
- Application Number
- CN202421907935.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-08-08
AI Technical Summary
Traditional thermal metering devices have low metering accuracy and poor real-time performance. They cannot measure normally under interruption of power supply, and cannot achieve accurate control, resulting in inaccurate energy management and opaque thermal charges.
It adopts high-precision sensors and programmable logic controllers integrated with touch industrial machines, combined with flowmeters and electric regulating valves to achieve accurate measurement and control of heat, and has remote monitoring and management functions.
It realizes accurate measurement of heat values and fair and transparent billing, improves the accuracy and utilization efficiency of energy management, and has powerful data processing capabilities and remote operation functions.
Smart Images
Figure CN223294915U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat network metering control device based on the integration of a programmable logic controller and a touch-control industrial machine. Background Art
[0002] With the increasing demands for energy management and energy conservation and emission reduction, the requirements for the accuracy and real-time performance of heat metering devices are becoming increasingly stringent. Traditional heat metering control devices, such as ultrasonic heat meters, only collect parameters such as flow and temperature and calculate heat. They suffer from low control accuracy, poor real-time performance, and limited data processing capabilities. Traditional heat metering devices cannot properly measure data if heat users maliciously cut off the power supply to the device, resulting in heat loss. Traditional heat metering devices can only perform simple heat metering and cannot achieve precise control to achieve efficient energy utilization and management. Summary of the Invention
[0003] The purpose of the utility model is to provide a heat network metering control device based on the integration of a programmable logic controller and a touch industrial machine, which realizes the accurate measurement of calorific value and improves the accuracy of energy management. Billing is carried out according to the metering results, which helps to achieve fair and transparent billing of the heat network and improve energy utilization efficiency. The utility model provides the following technical solutions: a heat network metering control device based on the integration of a programmable logic controller and a touch industrial machine, the device comprising: an electric regulating valve (3), a temperature sensor (4), a temperature sensor (5), a flow meter (6), a programmable logic controller heat metering control box (7) and a touch industrial machine (8), wherein the electric regulating valve (3) and the temperature sensor T1 (4) are installed on the water supply pipe (1) in a welding manner, the flow meter (6) is installed on the water supply pipe (1) in a flange mounting manner, the temperature sensor T2 (5) is installed on the return pipe (2) in a welding manner, the programmable logic controller heat metering control box (7) is installed on the wall (9) of the heat user control room in a wall-mounted manner, and a square hole is opened on the panel of the programmable logic controller heat metering control box (7) to install the touch industrial machine. The industrial machine (8), the electric regulating valve (3), the temperature sensor T1 (4), the temperature sensor T2 (5) and the output end of the flow meter (6) are connected to the programmable logic controller heat metering control box (7) through a 4-core copper core shielded sheathed cable. The programmable logic controller heat metering control box (7) is internally configured with a CPU module (10), an AI module (11), an AO module (12), an Ethernet communication module (13) and a DC24V DC power supply (14). The programmable logic controller heat metering control box (7) is equipped with an electronic password lock (15). The user can display the supply and return water temperature, flow rate, instantaneous heat and cumulative heat value of the heating pipe network on the touch industrial machine (8). By inputting the unit heat heat fee value, the heat fee value can be calculated and displayed. The user can adjust the heat by controlling the opening size of the electric regulating valve (3).
[0004] The temperature sensor T1 (4) and the temperature sensor T2 (5) adopt high-precision 4-wire PT1000 thermal resistors, and the flow meter (6) adopts a vortex flow meter with a 4-20mA signal output function; the electric control valve (3) adopts a DC24V power supply, can receive 4-20mA or 0-10V instructions, and has a 4-20mA or 0-10V signal output function.
[0005] The temperature sensor (4) and the temperature sensor (5) are responsible for measuring the supply and return water temperatures of the heating pipe network, and transmit the corresponding real-time temperatures in the form of resistance signals to the AI module (11) inside the programmable logic controller heat metering control box (7). The flow meter (6) is responsible for collecting instantaneous flow data of the water supply pipe network and transmitting it to the AI module (11) in the form of a 4-20mA signal. The CPU module (10) processes the collected temperature and flow signals, and stores and displays the calorific value data in the touch industrial machine (8). The CPU module (10) can calculate the heat cost based on the given heat unit value and display it on the touch industrial machine (8). The user can control the opening of the electric regulating valve (3) on the touch industrial machine (8) according to needs to achieve the purpose of heat control.
[0006] The working principle of this utility model:
[0007] The temperature sensor (4) and the temperature sensor (5) are responsible for measuring the supply and return water temperatures of the heating pipe network, and transmit the corresponding real-time temperatures in the form of resistance signals to the AI module (11) inside the programmable logic controller heat metering control box (7). The flow meter (6) is responsible for collecting instantaneous flow data of the water supply pipe network and transmitting it to the AI module (11) in the form of a 4-20mA signal. The CPU module (10) processes the collected temperature and flow signals, and calculates the calorific value in accordance with the specification requirements of the "Microcomputer Real-time Heating Metering Device Verification Procedure" J based on the given medium density and enthalpy value. The calorific value data is stored and displayed in the touch industrial machine (8). The heat fee can be calculated based on the given heat unit value and displayed on the touch industrial machine (8). The user can control the opening of the electric regulating valve (3) on the touch industrial machine (8) according to the needs to achieve the purpose of heat control. Through the network connection function of the touch industrial machine (8) and the Ethernet communication module (13), the device can realize remote monitoring and management. The user can access the system remotely through Ethernet, view the operating status, data reports, etc. of the heating network in real time, and perform remote control and management operations.
[0008] Technical effects of the present invention:
[0009] Compared with the prior art, the beneficial effects of the present invention are:
[0010] This utility model uses high-precision measurement sensors and advanced metering methods to achieve accurate measurement of calorific value, improving the accuracy of energy management. Billing based on the measurement results helps achieve fair and transparent billing for the heating network and improve energy utilization efficiency.
[0011] In the present invention, through the intuitive interface of the touch-controlled industrial machine, users can conveniently perform operations such as parameter setting, data viewing and exporting, thereby reducing the difficulty of operation.
[0012] In the present invention, the touch industrial machine has powerful data processing and analysis capabilities, can process the collected data in real time, and generate various forms of reports and charts, providing users with rich information support.
[0013] In the present invention, an electric regulating valve is installed in the water supply network to control the flow of the network, which can be coordinated with the software to realize the automatic control function, providing strong support for energy management and control.
[0014] This utility model has important practical application value and market prospects. The device utilizes the high reliability of a small programmable logic controller and the powerful processing capabilities of an industrial computer to achieve accurate and efficient heat metering, heat control, and heat cost calculation, providing strong support for energy management and optimization. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the control logic in the utility model;
[0016] Figure 2 This is the circuit schematic diagram of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the programmable logic controller heat metering control box in the utility model; DETAILED DESCRIPTION
[0018] like Figure 2As shown, a heat network metering control device based on the integration of a programmable logic controller and a touch-screen industrial machine is shown. The device includes: an electric regulating valve 3, a temperature sensor 4, a temperature sensor 5, a flow meter 6, a programmable logic controller heat metering control box 7 and a touch-screen industrial machine 8. The electric regulating valve 3 and the temperature sensor 4 are installed on the water supply pipe 1 in a welding manner, the flow meter 6 is installed on the water supply pipe 1 in a flange mounting manner, the temperature sensor 5 is installed on the return pipe 2 in a welding manner, the programmable logic controller heat metering control box 7 is wall-mounted on the wall 9 of the heat user control room, a square hole is opened on the panel of the programmable logic controller heat metering control box 7 to install the touch-screen industrial machine 8, and the output ends of the electric regulating valve 3, the temperature sensor 4, the temperature sensor 5 and the flow meter 6 are connected to the programmable logic controller heat metering control box 7 through a 4-core copper core shielded sheathed cable.
[0019] like Figure 3 As shown, the programmable logic controller heat metering control box 7 is internally configured with a CPU module 10, an AI module 11, an AO module 12, an Ethernet communication module 13 and a DC24V direct current power supply 14.
[0020] like Figure 1 As shown, the device is mainly used in the heat network commercial user monitoring and metering system in the heating system. The temperature sensor 4 and the temperature sensor 5 are responsible for the supply and return water temperatures of the heating pipe network, and transmit the corresponding real-time temperature in the form of resistance signals to the AI module 11 inside the programmable logic controller heat metering control box 7. The flow meter 6 is responsible for collecting the instantaneous flow data of the water supply pipe network and transmitting it to the AI module 11 in the form of a 4-20mA signal. The CPU module 10 processes the collected temperature and flow signals, combines the given medium density and enthalpy value, and calculates the calorific value according to the requirements of the "Microcomputer Real-time Heat Metering Device Verification Procedure". The calorific value data is stored and displayed in the touch industrial machine 8. The heat fee can be calculated based on the given heat unit value and displayed on the touch industrial machine 8. The user can control the opening of the electric control valve 3 on the touch industrial machine 8 according to needs to achieve the purpose of heat control. Through the network connection function of the touch industrial machine 8 and the Ethernet communication module 13, the device can realize remote monitoring and management. Users can remotely access the system through Ethernet, view the operating status, data reports, etc. of the heating network in real time, and perform remote control and management operations.
[0021] The temperature sensor 4 is used to measure the water supply temperature of the water supply pipe 1 and adopts a high-precision domestic brand PT1000 thermal resistor.
[0022] The temperature sensor 5 is used to measure the return water temperature of the return water pipe 2 and adopts a high-precision domestic brand PT1000 thermal resistor.
[0023] The flow meter 6 adopts a high-precision vortex flow meter to measure the water supply flow of the water supply pipe 1. It has a 4-20mA signal output function and a liquid crystal display operation screen that can intuitively display instantaneous flow and cumulative flow data.
[0024] The electric regulating valve 3 is a proportional regulating function valve used to adjust the water supply flow valve of the water supply pipe 1. It is installed by flange connection, has a pressure resistance level of 1.6MPa, is powered by DC 24V, has a 0-10V or 4-20mA signal output function, receives instructions of 0-10V or 4-20mA signals, and has a manual control function.
[0025] The programmable logic controller heat metering control box 7 adopts a non-standard customized waterproof and moisture-proof box, which is equipped with a CPU module 10, an AI module 11, an AO module 12, an Ethernet communication module 13 and a DC24V DC power supply 14. A touch industrial machine 8 and an electronic password lock 15 are set in the front of the box.
[0026] The CPU module 10, AI module 11, AO module 12, and Ethernet communication module 13 are currently mainstream small-scale editable logic controllers of the same brand internationally. The CPU module 10 has a storage register that can store data and also has a backup battery power supply function. When the external power supply is cut off, the battery can be used for power supply to ensure that data is not lost, ensure temporary power supply to the controller, and send a power-off alarm instruction to the user.
[0027] The DV24V DC power supply 14 converts the AC 220V power supply connected to the programmable logic controller heat metering control box 7 into a DC 24V power supply, providing working power for the CPU module 10, AI module 11, AO module 12, Ethernet communication module 13, touch industrial machine 8 and electric control valve 3.
[0028] The touch industrial machine 8 uses a domestic mainstream brand embedded industrial computer with touch screen function, with an installation size of 10 inches, a configuration of at least 4G memory, a 500G hard disk, a win10 operating system, and is equipped with common office software and force control configuration software. It has an RS485 interface and a USB interface, an RJ45 Ethernet interface, and is connected to the editable logic controller in the form of TCP / IP through the RJ45 Ethernet interface. Various data such as water supply temperature, return water temperature, instantaneous water supply flow, electric control door opening, instantaneous heat, accumulated heat, accumulated water supply flow and current heat fee value can be displayed on the main interface of the touch industrial machine 8. Historical data and various alarm records can also be queried, and report export and printing functions are supported.
Claims
1. A heat network metering control device based on the integration of a programmable logic controller and a touch-screen industrial machine, the device comprising: The invention is composed of an electric regulating valve (3), a temperature sensor (4), a temperature sensor (5), a flow meter (6), a programmable logic controller heat metering control box (7) and a touch industrial machine (8), wherein the electric regulating valve (3) and the temperature sensor T1 (4) are installed on the water supply pipe (1) in a welding manner, the flow meter (6) is installed on the water supply pipe (1) in a flange mounting manner, the temperature sensor T2 (5) is installed on the return pipe (2) in a welding manner, the programmable logic controller heat metering control box (7) is installed on the wall (9) of the heat user control room in a wall-mounted manner, a square hole is opened on the panel of the programmable logic controller heat metering control box (7) to install the touch industrial machine (8), the electric regulating valve (3), the temperature sensor T1 (4) The output end of the temperature sensor T2 (5) and the flow meter (6) are connected to the programmable logic controller heat metering control box (7) through a 4-core copper core shielded sheathed cable. The programmable logic controller heat metering control box (7) is internally configured with a CPU module (10), an AI module (11), an AO module (12), an Ethernet communication module (13) and a DC24V DC power supply (14). The programmable logic controller heat metering control box (7) is equipped with an electronic password lock (15). The user can display the supply and return water temperature, flow rate, instantaneous heat and cumulative heat value of the heating pipe network on the touch industrial machine (8). By inputting the unit heat heat fee value, the heat fee value can be calculated and displayed. The user can adjust the heat by controlling the opening size of the electric control valve (3).
2. A heat network metering control device based on the integration of a programmable logic controller and a touch-screen industrial machine according to claim 1, characterized in that: The temperature sensor (4) and the temperature sensor (5) adopt high-precision 4-wire PT1000 thermal resistors, and the flow meter (6) adopts a vortex flow meter with a 4-20mA signal output function; the electric control valve (3) adopts a DC24V power supply, can receive 4-20mA or 0-10V instructions, and has a 4-20mA or 0-10V signal output function.
3. A heat network metering control device based on the integration of a programmable logic controller and a touch-controlled industrial machine according to claim 1, characterized in that: The temperature sensor (4) and the temperature sensor (5) are responsible for measuring the supply and return water temperatures of the heating pipe network, and transmit the corresponding real-time temperatures in the form of resistance signals to the AI module (11) inside the programmable logic controller heat metering control box (7). The flow meter (6) is responsible for collecting instantaneous flow data of the water supply pipe network and transmitting it to the AI module (11) in the form of a 4-20mA signal. The CPU module (10) processes the collected temperature and flow signals, and stores and displays the calorific value data in the touch industrial machine (8). The CPU module (10) can calculate the heat cost based on the given heat unit value and display it on the touch industrial machine (8). The user can control the opening of the electric regulating valve (3) on the touch industrial machine (8) according to needs to achieve the purpose of heat control.