With the increasing demanding on the heating quality

using advanced automation technology

control technology and communication technology

constant pressure water supply system with high performance

high energy-saving and adapting to the complex heating environment was designed

and it become an inevitable trend. Heating water supply system of the former district of workers was transformed by Shuoli Mining

realized variable frequency and constant pressure automatic water supply system

and saved energy observably

stability was greatly improved. The modification background

work theories and control programs of water supply system in heating network

and the operational performance of variable frequency and constant pressure water supply system were advanced in this paper

and economic benefits were analyzed.