The Characteristics Research On The Heating System Power Saving Of Distributed Variable Frequency Pump

Cold winter in north China region, the city of central heating is to be used byheating. For nearly thirty years, whether in heating scale or heating technology, centralheating career has developed rapidly. With the rapid development of national economy,energy conservation work is paid more and more attention to. Many researchers in thecentral heating energy saving aspects has done a lot of work and effort, and putforward the distributed heating system.This thesis analyses variable-speed pumps in the Dynamic Distributed DistrictHeating network, which is named Distributed Variable Frequency Pump HeatingSystem. Hydraulic calculate the case of Qiaoxi central heating project in Zhangjiakou.Through the pressure diagram analysis of traditional heating method and distributedfrequency heating method, calculate the parameter of the heat circulation pump anddistribution pump of heat users separately for traditional heating method or distributedfrequency heating method, which zero pressure control point disposed in differentpositions. Calculating the energy of traditional heating method and distributedfrequency heating method, draw a conclusion that anywhere does Zero pressurecontrol point is set in heating system, the latter is energy conservation than the former,The engineering case’s economic analysis made respectively by the time ofevaluation index, value evalution index and ratio of evalution frequency heatingsystem has large advantage in economic.Judging from the actual conditions of China at present, China still has much to doin terms of energy conservation. Therefore, strengthen the study of distributed heatingsystem of the cause of central heating has the contribution to our city. This topic infinding the right intention in the engineering method so as to give the design of thedistributed system operation and management work an important guidance.