Analysis On Water Consumption Law Of Different Buildings And Optimization Of Secondary Water Supply System

With the increase of high-rise buildings,users in the building have higher requirements on water quality,water quantity and pressure of water supply.Under the premise of saving energy and saving water,higher requirements are put forward for the design and operation of the secondary water supply system in buildings.At present,the current water consumption of all kinds of building is less,the law of water consumption for different building research is inadequate.The existing specifications have larger design parameters,and there is a big difference between the design requirements and operation of the secondary water supply system,resulting in excessive energy consumption of building water supply system.In order to supplement the data of water consumption and the regularity of different buildings,provide more detailed design basis,provide references for the revision and supplement of norms,provide the plan for the reconstruction and optimization operation of secondary water supply system,this project make the long-term continuous online monitoring of the water use of different buildings in Tianjin and a city of Northeast of China.The monitored buildings include residence,hospitals,office buildings and so on.The data of monitoring are analyzed by mathematical statistics to compare the different rules of water use in different buildings.The influencing factors of different building water rules are analyzed.The rules of water use for residential buildings with the same type and different size.The different types of water rules of same large high-building are researched.The research results refine the differences of water use rules in different buildings,and find that temperature and holidays are the main factors affecting daily water consumption.It is found that the design parameters of different building water supply systems are conservative,and some gaps in the norms are added.According to the law of water use,the secondary water supply system of different buildings is analyzed.The results show that quite a few secondary water supply systems in the building have the problems of excess design capacity and too conservative pump set.Combined with the law of water,it provides reference for the design and optimization of the secondary water supply system of different buildings,provides reference for the revision and supplement of the norms,and puts forward the reference scheme for the optimal configuration and operation mode of the pump group.The research results are of great significance to water saving and energy saving of secondary water supply system in buildings.