The Analysis For Hydraulic Status Of Central Heating Network In The Condition Of Heat Metering

The technology of heat metering is immature in our country, we have learned much experience from foreign, but there are still a lot of problems in the process of reforming the central heating. For example: the original form of indoor heating network is not applicable. The method of heat metering .The method of calculation and collection for heat cost. The hydraulic imbalances caused by the users'adjust. The pipe network characteristics are not matched with the power cycle.This article describes several ways to heat metering and heating system for measuring the form of heating network; the reasons for the pipe network hydraulic imbalance has been explained and functions and applications of several conditioning equipment have been stated. The pipe network hydraulic conditions were analyzed before and after the reform for heating, and the different pipe network characteristics between the form of the original heating and heat metering are simulated by experiment. The pressure diagrams of different hydraulic conditions are drawn, reflecting the inapplicability of conditioning before and after the reform and then make adjustments. According to the Requirements of network before and after the reform we select a reasonable regulation of conditioning and operation strategy. The situation of cycle power to change the variable flow-driven regulation has been changed, implemented the means of droved by the client driven, cycle power-assisted variable flow regulation, which meet the needs of the users to take heat, but also to avoid interference during adjacent users. While cycle power can make adjustments to accommodate the variability of the network characteristics, and adapt the transformation of heat metering, making the dynamic water balance.