Analysis And Optimization On The Secondary Network Of A Geothermal Heating System

In recent years,due to the increasingly severe problems of energy structure and environment in China,heating energy consumption has been widely concerned.Therefore,it is very important to develop and utilize new energy sources.In the new energy,geothermal energy as a renewable and clean energy has been widely used in the heating system,but in the actual project,the use of geothermal energy is reasonable and in geothermal heating system with heat source for operation is efficient has rarely mentioned,therefore,this article is based on one hot water heating engineering,analyze the application in the field of heating geothermal water.In this paper,firstly,the design and operating conditions of the existing systems are analyzed and compared.There are two major problems,namely,the temperature and the pressure of the system.The temperature problem mainly displays the system running with low operating parameters but can still meet the users with hot demand,for this abnormal phenomenon,the author first analyzes its credibility,and further to study the causes of this appearance.The pressure problem is mainly manifested in the system belongs to the traditional form of heating but appeared backwater pressure higher than the pressure of water supply,through the investigation,found that the reason of this phenomenon lies in the system of the heat users are adding pressure pump,therefore,the author makes a further analysis on the pressure generated by the pump addition.Secondly,qualitative points out the irrationality of the system is designed,and from the design point of view to study the optimization of the system,the main work content for the location of the heat exchange station of the new scheme,a secondary network redesign,and selection of the new project of equipment is calculated by water force.By comparing the calculation,the new scheme is better than the existing schemes in terms of initial investment and operation cost.Finally,through the above research,it is concluded that the construction of the heat exchanger station location affect heating system of heating radius,and for each heating system,there are made to minimize initial investment and operation cost of the best heating radius,therefore,summarizes the common factors,based on the actual engineering formula for calculating the optimum heating radius of geothermal water heating system is put forward.