Research And Application Of The Transmission And Distribution Technology Of The Heating System Pipe Network

The hydraulic imbalance of the heating system, heating systems Enthusiasm, the long-standing problem of the industry is still plagued, caused by the waste heat is generally20to30%, some as high as40to50%; the waste of energy caused Usually30to50%, and some as high as60to70%.Tradition rooted in the same system resistance (throttling) hydraulic balance adjustment technology, because it is unable to apply the system of "dynamic " changes, so the only " coarse adjustment" system; their run mode large flow of small temperature difference, so the heating system hydraulic stability is poor, difficult to debug, anti-jamming capability, existing pipeline waste of resources; because it is unable to provide a water supply temperature, it is difficult to meet the different users of the diversification heat needs.Based on the current situation of China’s national conditions and heating systems, heating system combined with specific energy-saving projects, the relationship of the causes of the heating system hydraulic imbalance, hydraulic conditions and thermal conditions, the heating system operating mode, heating pipe network transmission and distribution technology for in-depth study and application of the system. Drawn:①The room for a network using the " two pump mixing water distributed water pump inverter technology, energy-saving30%to75%, about10%of the heat-saving, investment payback period of2-3years;②The direct supply or for the secondary network distribution modular adjustable jet pump heating system, energy saving of30%to70%, about18%of the heat-saving operation and management cost savings of about50%, investment payback period of1-2years.