Research Of New Measure About Central Heating System Energy Conservation And Optimization In The City

Building energy consumption in China is about31%of the country’s total energyconsumption, increasing every year and an average growth rate of5.82%. In the heatingseason, the average building energy consumption of standard coal30.9kg/m2The coalconsumption is2.5to3times of the more developed countries under similar climaticconditions. The increasing in energy consumption at the same time exacerbates environmentalpollution.At the present time,268cities have built central heating facilities in668cities of ourcountry. And the scale of central heating has increased dramatically. Heating universal scale ofthermal power plant has mostly upgraded to4×300MW and2×600MW cogeneration unitsfrom2×300MW cogeneration units. This results in increasing the project cost. The originaldiameter specifications are difficult to meet the requirements. The responding transportheating network specification needs to be improved.Faced with various situations, the need is urgent to promote scientific and technologicalinnovation, to implement technology optimization, to reduce the project cost and to saveenergy in the field of central heating.Referring to the interrelated Chinese and English document, combined with engineeringpractice of our designing institute, this paper deeply researches hot issues responding heatingsystem optimization and energy conservation in this field.1、the research of distributedvariable frequency the three pump heating system2、the application research of the DN1400directly buried hot water pipeline3、the research of automatic adjusting system of heatingsystems. To choose atmospheric environment protection engineering in HuhehaoteMunicipality as researching background, researches the advantage of central heating systemcompared with traditional heating system. The distributed variable frequency the three pumpheating system reduces throttling loss, at the same time, triple-stage pump can adjust flowaccording to the change of outdoor temperature, and heating network conveying energyconsumption. In the practice, solve the technical parameter DN1400directly buried hot waterpipeline, including working pipe wall thickness, insulation thickness and so on. This paced forthe development of the research theory of DN1400directly buried hot water pipeline.Additionally, the paper also discusses the significant effect in the energy conservation.