Optimal Design Of Natural Gas Transmission And Distribution System In Dujiangyan

Urban natural gas as a clean and efficient energy,the use of cities and towns have become more and more popular.Dujiangyan as a key tourist city in China,it is important for us to develop the natural gas.But with the growing demand for natural gas in the city at present,the Dujiangyan natural gas transmission and distribution system has been unable to meet the demand for natural gas in current and future years,the distribution system of Dujiangyan natural gas optimization design is very important meaning.Firstly,based on the analysis of the basic situation of Dujiangyan City,according to the classification of urban natural gas users,the demand for natural gas in 2020 is forecasted by different users,and get the total demand for natural gas in Dujiangyan in 2020.According to the time(days)the amount of peak shaving out when(day)peak shaving and storage scheme and seasonal peak shaving and storage scheme.The city gas distribution system based on the structure analysis to optimize the design of distribution system,the first city pipe network pressure level to establish the comprehensive evaluation model,and establish the selection model of construction model of CNG station of standard stations with parent and subsidary stations,optimization and improvement of the entire distribution system.Finally,according to the current situation of Dujiangyan the natural gas transmission and distribution system,several important parts of the transmission and distribution system in Dujiangyan to optimize the design,the construction scheme of the main gas pipeline is put forward on the construction of second main gas pipelines and third main gas pipeline,in the urban network to improve the construction of the network,and put forward Juyuan gate station and Daguanmen gate station two door station with construction scheme and 5 new CNG station building.Based on the analysis of the demand of natural gas in Dujiangyan over the next few years,this paper puts forward the optimization of the natural gas transmission and distribution system,which has important guiding significance for the development of Dujiangyan natural gas.