1、 System Introduction

The flow temperature method heat metering system, also known as the flow temperature method heat distribution system, hereinafter referred to as the flow temperature method (device) system, is a heat metering and energy-saving system scheme composed of devices that distribute the heat measured by the heat total meter of the heat settlement point in the heating area to each user based on the proportion of heating user flow to the total flow at the heat settlement point and the temperature difference.

The flow temperature method heat distribution device consists of a heat meter, a heat distributor, a temperature acquisition processor, a heat query device, and other equipment.

The system uses the temperature difference and flow ratio data of each household's inlet and outlet water to allocate the heat value of the building's total table.

This system integrates computer technology, communication technology, information technology, network technology, database management technology, automatic control technology, heating hydraulic balance technology, energy-saving technology and other technologies, providing a system solution for energy-saving and household heat metering in the operation and management of heating systems.

This system is particularly suitable forThe indoor heating system can be transformed from an existing heating system with a single pipe connected in series, and can also be applied to individual heating systems with a shared riser and a dual pipe systemIt can be applied to the energy-saving renovation of existing heating residential buildings through heat metering, as well as to the household heat metering of newly built centralized heating residential buildings.

The system solution also integrates the energy management system solution for the heating network, including energy-saving renovation plans for heat exchange stations and heat sources, hydraulic balance renovation plans for the heating network, and monitoring and scheduling plans for the heating network, to achieve energy-saving goals for heating.

1.1 System Principle

The working principle of the flow temperature method heat metering system is to install a heat meter at the thermal inlet of the building to measure the heat consumption of the entire building during the heating period; Install a three-way temperature control valve, crossover pipe, and temperature collector at the inlet end of the indoor radiator for heating users, adjust the water supply flow rate (heat dissipation) of the radiator, and measure the inlet and outlet water temperature and temperature difference of the radiator; The system distributes the heat consumption of the entire building (total heat consumption) based on the flow rate of the common riser, the inlet and outlet temperatures of the radiator, the temperature difference, and the number of user radiators. Users can query user information and heat consumption using the heat query device.

System architecture diagram

System technical characteristics

1 Integrating metering, temperature control, billing, and energy conservation;

2 Building measurement, allocation by household, fair and reasonable;

3 Good rationality of data measurement: it not only accurately reflects the actual heat consumption of users, but also comprehensively considers the radiation conductivity of heat itself and the close correlation between users in the building, in order to reduce measurement conflicts between users

4 Integrating hydraulic balance and energy-saving heating technology, the heating system effectively saves energy;

5 Temperature regulation of radiator compartments to ensure energy efficiency for users during heating;

6 Real time remote monitoring and management of heating systems and user heating operation status;

7 The abnormal protection and monitoring functions of system equipment ensure the security and stability of the system;

8 Integrating multiple communication methods such as wireless, bus, and public network, the system network is flexible and reliable;

9 The modular design of the system management platform and client software is powerful, easy to use, and conducive to upgrading;

10 Powerful data processing and mining techniques provide safe and reliable operational data for heating operations, improving the level of heating management;

11 System Open InterfaceCan share data, coordinate work, and link control with other intelligent systems;

12 Suitable for different price and fee management modes, easy to manage;

13 Design, construction, operation, maintenance, upgrade, and operation are simple and convenient, with low investment, low maintenance costs, and high cost-effectiveness, especially suitable for energy-saving renovation of existing single tube heating systems.

System Function Description

1) System function: It integrates multiple functions such as heating metering, control, billing, and energy conservation;

2) Measurement and Allocation Function: ByThe total heat consumption of the building's metered heating system is distributed fairly and reasonably based on the temperature and temperature difference of the radiator's inlet and outlet water, as well as the flow rate of the common riser;

3) Room temperature control function: Users can adjust the three-way temperature control valve to change the water supply of the radiator according to their room temperature needsAutomatic room temperature balance control ensures users save heat and energy, truly achieving room temperature regulation;

4) Remote monitoring function:Real time remote monitoring and management of heating systems and user heating operation status;

5）Abnormal alarm function: System equipment abnormal protection and monitoring function ensure system security and stability;

6) Local display query function: throughThe user query device is convenient for querying users' information such as heat consumption, and can also provide users with functions such as card swiping, recharging, and payment；

7) Data sharing function: Data can be transmitted over long distances to the management platform server, enabling data sharing with heating management departments or financial charging departments, making it easy to manage and charge;

8) Easy renovation of heating system: Especially suitable for energy-saving renovation of existing single tube heating systems, adding a crossover pipe and a three-way temperature control valve in front of the radiator is sufficient, making system construction and renovation simple and convenient.

2、 System architecture composition

The flow temperature method heat metering system mainly consists of three parts: indoor structure, building structure, and management system, as follows:

2.1Indoor structure:

It mainly includes a radiator temperature collector, a three-way temperature control valve, and a radiator crossover pipe. The three-way temperature control valve and radiator crossover pipe are installed at the inlet end of the radiator to regulate the water supply (heat dissipation) of the radiator; The temperature collector is installed on the crossing pipe to measure the temperature and temperature difference at the inlet and outlet of the radiator, and communicates wirelessly with the temperature receiver to transmit data.

2.2Building structure:

It mainly includes hydraulic balance equipment such as thermal energy distributors, temperature receivers, user query devices, power distribution boxes, building heat meters, differential pressure or flow balance valves. The thermal energy distributor collects heating operation data from building heat meters and temperature receivers, calculates and distributes user heat, and usesGPRS or network communication method exchanges data with the system management center, while conducting system and user management and control; The temperature receiver receives measurement data from the user's radiator temperature collector and transmits it to the thermal energy distributor; The user query tool is used for users to query information such as heat consumption; The power distribution box provides working power and safety protection for the heat metering system; The building heat meter measures the heat consumption of the entire building, using ultrasonic or electromagnetic heat meters; Differential pressure or flow balance valves are used for regulating the hydraulic balance of heating in buildings and for users.

2.3 Energy Monitoring and Management Platform:

The Jingyuan Energy Monitoring and Management System Platform mainly includes a central computer service station (data transmission terminal, data serverWEB ServerNetwork equipment, data centers, system management platform software, and client software are used for data storage, management, statistical analysis, remote monitoring, and billing management. At the same time, client queries, payments, maintenance, and other management are also carried out.

The Jingyuan Energy Monitoring and Management System Platform includes flow temperature method heat metering system, on-off time area method heat metering system, heat meter temperature control integrated system, heat network monitoring and management system, heat meter and water meter management system6 independent subsystem platforms.The management platform of the flow temperature method heat metering system integrates the comprehensive data information of the flow temperature method heat metering energy-saving management fee system, boiler room, heat exchange station energy-saving renovation, and monitoring system, providing a systematic solution for energy-saving design, construction, operation, and maintenance of heating.

The system adoptsB/S architecture allows both management departments and users to remotely log in to the system in real-time for information queries and authorization instructions, making management very convenient.

The server and management system receive the uploaded data from the data collector, detect and analyze energy consumption, etc., for practical decision-making by the management department, and can remotely configure relevant equipment and user information. managementThe software can monitor the running status of each collector in real time, and there are two types of meter reading methods: automatic and manual. Automatically collect data from all heat meters and radiator temperature collectors according to the set time, and store the data; Manual meter reading is convenient for system debugging and maintenance.The management system canCreate various daily, monthly, and quarterly data reports, arrange them according to the community or user (optional order), and also arrange historical data for individual households to create an overall report. Combine the collected data with indoor area to calculate unit consumption, hydraulic stability analysis, and other operational analysis functions.

The management platform of the flow temperature method heat metering system includes multiple management modules such as system login, system security, basic information, equipment monitoring, meter reading management, data query, data statistical analysis, report management, abnormal alarm, payment management, data backup, etc. It realizes the management and monitoring functions of login permissions, role management, security protection, user information, heating area information, equipment information, equipment configuration, equipment monitoring, instrument information, instrument monitoring, remote meter reading management, real-time data query and statistical analysis, historical data query and statistical analysis, abnormal information query and processing, database management, report management, etc. It provides customers with a complete management system that integrates intelligent collection, data management, real-time monitoring, flexible query, data security, and convenient user functions.

2.3.1 Characteristics of Management Software:

1）SystemB/S architecture design allows both management departments and users to remotely log in to the system in real-time for information queries and authorization instructions, making it convenient and efficient;

2）Real time performance, system data can be collected and updated in real-time according to user needs, reflecting the heating system and the actual heat consumption situation of users in a timely manner;

3）Intelligent, the system can remotely configure and modify system control parameters such as heating users, equipment, heating time, and data collection as needed, achieving unmanned automatic operation monitoring and adjustment of the system;

4）Massive data storage, the system adopts independent data servers, which can be configured according to multiple regions, companies, etc., and can also be stored in the cloud. The data storage can be expanded arbitrarily, and heating users are not restricted, realizing the integration of urban heating data;

5）Security, system data servers, andThe web server is separated, and the data server adopts network security design to effectively ensure the security of data. System access permissions and role settings further ensure the security of user data;

6）Openness, the system is compatible with multiple domestic and foreign manufacturers' heat metering equipment, and can seamlessly interface with the heating management department's heat network management system, data service system, and bank fee management system to share system data, reflecting the system's good compatibility and openness;

7）Flexibility, the system adopts a modular design, and users can configure different functional modules according to their needs. The system data analysis and query can be flexibly set to achieve different management modes such as regional and branch offices, achieving system cost-effectiveness;

8）Convenience, the user interface adopts a browser mode, and mobile and smart terminal clients can also be installed as needed. Users can perform real-time on-site query and control operations. The interface is simple and friendly, providing users with convenient services;

9）Easy to maintain, system operation self diagnostic security design, servers can be self owned or rented, and the company is equipped with professional management and maintenance service personnel to ensure the safe and normal operation of the system.

4. Energy saving system for heat exchange stations and heating network heat sources:

Closely connected to the flow temperature method heat metering system is the energy-saving renovation system of the entire heating network, which mainly includes hydraulic balance equipment for the secondary network, flow, pressure, and temperature monitoring equipment for the pipeline network, climate compensation equipment for heat exchange stations, constant pressure or constant flow water supply equipment, and operation monitoring and temperature adjustment systems for the heating network.