The secondary network heating system refers to the use of two independent pipe networks for heating, namely the water supply pipe network and the return water pipe network. Balance adjustment refers to the adjustment of valves, pumps and other equipment in the secondary network heating system to balance the flow of water supply and return, so as to ensure the balanced heat distribution of each heating terminal.
In the process of heating in winter, in order to ensure that users can enjoy a comfortable temperature, it is necessary to effectively balance the heating system. The secondary network heating balance adjustment method is a commonly used technical means, which aims to solve the problems of uneven temperature and flow in the heating pipe network.
The following are some commonly used methods for adjusting the balance of secondary network heating:
Valve regulation method
By adjusting the opening of the terminal valve, the heat output of each terminal is controlled. According to the heat load of different terminals, gradually adjust the opening of the valve to make the supply and return water flow balanced.
Pump regulation method
By adjusting the flow rate of the supply and return pumps, the heat output of each terminal is controlled. According to the heat load of different terminals, the flow rate of the pump is gradually adjusted to make the supply and return flow balanced.
Temperature measurement control method
By installing temperature sensors at each terminal, the temperature of the supply and return water is monitored in real time. According to the temperature difference, adjust the working state of valves, pumps and other equipment, so that the temperature of the supply and return water is close to the design requirements, so as to achieve balanced adjustment.
Pressure equalization method
By adjusting the pressure of the water supply and return pipe network, a pressure balance valve and other devices are set in the pipe network to make the water supply and return flow balanced. By keeping the pressure in the pipe network equal, an even distribution of the terminal heat can be achieved.
Automatic control system
The automatic control system is used to monitor and control the water supply and return flow, temperature, pressure and other parameters in real time through sensors, actuators and other equipment, and automatically adjust valves, pumps and other equipment according to the set control strategy to realize the balance adjustment of the secondary network heating system.
The above are some common secondary grid heating balance adjustment methods, and the specific adjustment methods should be selected and adjusted according to the actual situation and system requirements. When balancing and adjusting, it is necessary to fully consider the heat load of the terminal, the structure of the pipe network, the hydraulic characteristics and other factors to achieve the best performance and energy efficiency of the system. These methods first require a comprehensive understanding of the layout and structure of the heating network in order to develop an adjustment plan according to the actual situation. By installing temperature and flow monitoring equipment at key nodes, the data in the pipe network can be obtained in real time, providing a basis for subsequent adjustment work.
During the adjustment process, a variety of means can be used to intervene in the pipe network. For example, by adjusting the valve opening of the pipe network, the flow rate through each branch is changed so that the whole system reaches a state of equilibrium. At the same time, dynamic hydraulic balance valves and other equipment can be used to optimize the hydraulic characteristics of the pipeline network and improve the stability of the system.
In order to ensure the effectiveness of the regulation effect, an automated control system can also be introduced. By interacting with the monitoring equipment, the automation system can automatically adjust the valve opening based on real-time temperature and flow data, enabling dynamic balancing adjustment. This not only reduces the error of manual operation, but also improves the efficiency and accuracy of adjustment.
In addition, in order to improve the energy efficiency and environmental friendliness of heating, intelligent control technology can also be introduced. By analyzing historical data, the intelligent system can optimize future heating needs and develop a more reasonable adjustment strategy accordingly. This not only avoids wasted energy, but also helps to reduce greenhouse gas emissions and contribute to sustainable development.
In short, the secondary network heating balance adjustment method is an important technical means, which realizes the balance adjustment of the heating pipe network through the comprehensive application of a variety of means. The application of this method not only improves the efficiency and quality of heating, but also contributes to energy conservation, emission reduction and environmental protection.