Design Scheme And Economic Comparison Of Distributed Variable Frequency Heating System

With the continuous development of the traditional central heating system in China,many problems have been exposed,such as the large flow operation of the system,the large energy consumption of the system as a whole,and the uneven cold and heat on the user side.In this regard,some experts put forward the distributed variable frequency heating system,which can not only solve the problems existing in the traditional central heating system,but also reduce the environmental pollution caused by the heating industry to a certain extent.In this paper,the traditional central heating system and the distributed variable frequency heating system are introduced,and the energy-saving principle and advantages of the variable frequency pump are analyzed and summarized according to the water pressure diagram.Secondly,the engineering design ideas of the two heating systems are studied.There are differences in the design ideas between the two systems.Therefore,the hydraulic calculation process,the drawing of water pressure diagram,the selection of water pump and the constant pressure water supply are discussed.In this paper,four kinds of design schemes are put forward in a heating project.The four schemes are designed and calculated completely,and compared from the aspects of energy saving,economic and environmental benefits.It is concluded that the three kinds of distributed variable frequency pump heating system have obvious advantages in energy saving compared with the traditional central heating system.One is selected for the project by combining the economic and environmental benefits The best solution.In this paper,the scheme design and economic comparison of distributed frequency conversion heating system are carried out,and a better design scheme is obtained,which can provide reference for later engineering design.