206 results about "Hydronic balancing" patented technology

The invention relates to a hydraulic balance flow adjusting method based on a data remote transmission system. The system mainly comprises a heat exchange station and a terminal heat user, wherein the heat exchange station and a plurality of parallel branched loops which are supplied with heat by the terminal heat user are subjected to heat exchange on a heat exchanger; a main pipeline loop is provided with an adjustable balance valve and a building calorimeter; each parallel branched loop is provided with an adjustable balance valve or a control valve. The adjusting method comprises the following steps: (1) opening all the valves based on the data remote transmission system; (2) determining a most disadvantaged tail end loop; and (3) adjusting the valve opening degree of each parallel loop to control the flow. By the aid of the adjusting method, the heat source flow can be reasonably controlled, the wastes of a heat source are prevented, the power consumption amount of a water pump is reduced, the adjusting method is rapid and accurate, the cost is low and the practical value is very high; the manpower cost is effectively reduced and the working efficiency is improved.

The invention provides a hydraulic balance temperature adjusting method, and belongs to the technical field of heating, which solves the problem of overlong adjusting time of the existing hydraulic balance adjusting method. The adjusting method comprises the following steps of a, opening all valves, and filling water; b, determining the most adverse loop, wherein the loop with lowest water return temperature is determined as the most adverse loop, and adjusting the most adverse loop; c, adjusting the water return temperature of each main loop and each branch loop, considering compensate temperature, and enabling the water return temperature of each loop to be equal to the total water return temperature; finally, spot-checking a plurality of branch loops, and guaranteeing the accuracy of the adjusted structure. The adjusting method has the advantages that the electric consumption amount of a water pump is less, and the adjusting is rapid and accurate.

The invention relates to a hydraulic equilibrium control system of a secondary network of a centralized heat-supply network and a control method thereof. The hydraulic equilibrium control system of the secondary network of the centralized heat-supply network is characterized by comprising a long-distance central computer control unit and a plurality of horizontal hydraulic disorder control units corresponding to buildings. Each control unit comprises a GPRS (General Packet Radio Service) communicator at the entrance of the corresponding building, a local measurement and control terminal, an electric adjusting valve on a building water supply pipe, a water return temperature sensor on a building water return pipe, and an operated type differential pressure control valve of the building; and an operated type differential pressure control valve of a user is arranged on a user water return pipe inside the building. The control method comprises the following steps of: A, manually and initially adjusting horizontal hydraulic disorder; B, automatically and adaptively adjusting the horizontal hydraulic disorder: calculating a set value t of a building water return temperature by the central computer control unit according to an outdoor temperature, and collecting a building water return temperature T and openness data of an electric adjusting valve, and calculating a deviation value deltaT by each measurement and control terminal, so as to control openness of the electric adjusting valve; and C, manually adjusting vertical hydraulic disorder. The hydraulic equilibrium control system of the secondary network of the centralized heat-supply network and the control method thereof provided by the invention have the advantages that uniform heat supply is ensured, energy is saved, and consumption is reduced.

The invention discloses a variable flow and household metering centralized heating system and a hydraulic balance regulating method. The system comprises household metering modules, a water supply temperature measuring module, a water returning temperature measuring module and a heat supply network monitoring and controlling management platform. The household metering modules are arranged at the positions of users, and the heat supply network monitoring and controlling management platform is in communication connection with the household metering modules and a total circulating pump and collects the water supply temperature and the water returning temperature in pipe network systems through the water supply temperature measuring module and the water returning temperature measuring module; and a frequency changer is arranged on the total circulating pump. The water quantity needs of the users are met, and on the premise that the heat comfort requirement of the users is met, the flow is adjusted according to needs, and energy consumption is reduced; and the cost is saved, the reliability and the stability are higher, and the system is more suitable for long-term utilization.

The invention discloses a regulation and control method and system for a secondary network of a heat exchange station. The regulation and control method comprises the steps that a secondary network return water temperature detection value and an indoor temperature detection value are obtained; a secondary network return water temperature control set value is calculated according to the indoor temperature detection value and a secondary network non-intermediate unit return water temperature correction value; the secondary network return water temperature control set value is compared with the secondary network return water temperature detection value to obtain a return water temperature control error; an opening degree change numerical value of a secondary network regulation and control valve is calculated according to the return water temperature control error and secondary network physical parameters; and the opening degree of the secondary network regulation and control valve is adjusted according to the opening degree change numerical value of the secondary network regulation and control valve. According to the regulation and control method and system for the secondary network of the heat exchange station, the thermal balance degree, the hydraulic balance degree and the control precision of the secondary network and heat consumers are improved, necessary conditions are provided for optimized operation of the heat exchange station, the heat supply quality requirement of the heat consumers is met, free heat of the system is fully utilized, system energy consumption and pollutant emission are reduced, and labor cost and labor intensity are reduced.