A method to reduce transmission and distribution energy consumption of district central heating network

Abstract

The invention discloses a method for reducing the transmission and distribution energy consumption of a district central heating network, comprising: constructing the building thermal energy of the building according to the pipeline data of the thermal inlets of all heating buildings within the heating range of the central heating system. The inlet jet mixed flow device is used to adjust the opening of the electric valve of the thermal inlet jet mixed flow device of the building and the injection mixing ratio of the water jet mixer, so as to adjust the transmission and distribution pumps configured by the heating network according to the heating quality requirements of the building to adjust the supply. The transmission and distribution flow of the heating network can be adjusted at the thermal entrance of each heating building. While keeping the flow rate of the heating system in the building unchanged, reduce the flow rate of the building’s thermal inlet to the heating network to reduce the energy consumption of the heating network transmission and distribution, the power consumption of the transmission and distribution pump, increase the temperature difference between supply and return water, and improve the building quality. The ratio of the transmission and distribution flow of the material heat inlet to the heating network and the flow of the building heating system can improve the hydraulic and thermal adjustability and stability of the building heating system, and save equipment and maintenance costs.

Description

technical field [0001] The invention relates to the technical field of energy saving and efficiency enhancement of central heating systems, in particular to a method for reducing transmission and distribution energy consumption of regional central heating networks. Background technique [0002] At present, the total building heating area in northern my country is about 9 billion square meters, of which nearly 75% of the heating area adopts centralized heating. According to the process of heating heat from conversion, preparation, transportation, and use, the central heating system includes heat sources (cogeneration, boiler room), primary heating network, multiple heat stations, and secondary heating network to reach many buildings. The thermal entrance of the building enters the indoor heating system, etc. There is a large difference between the specification parameters selected in the design stage of the heat sources in the transmission and distribution system in the cent...

AI Technical Summary

Problems solved by technology

[0004] Based on the problems existing in the above-mentioned prior art, the present invention provides a method for reducing the transmission and distribution energy consumption of the district central heating network, which can effectively reduce the transmission and distribution flow of the central heating network, and further reduce the transmission and distribution of the central heating network. Energy consumption, which solves the high energy consumption of transmission and distribution of the existing central heating system heating pipe network, and the application of common frequency conversion devices, hydraulic balance valves and other adjustment methods cannot effectively reduce transmission and distribution energy consumption and energy waste under the premise of ensuring the quality of heat supply Serious, Difficult to Implement, and Ineffective Problems

Images