thediscussionofwater-savingtechnologyaboutwatersupplyanddrainageinbuilding-外文文獻(xiàn)(存儲(chǔ)版)
【正文】 easured survey for 67 taps, there were 47 taps which exceeded the rated flow [2]. The overlimit ratio reaches 61%. Therefore, the problem of overpressure flow in water supply system is serious and following measures should be adopted. A. Reasonably determine the pressure of water supply The pressure of water supply subarea should be acted according to Code for Design of Building of Water Supply and Drainage, while the best use hydraulic pressure of sanitary wares is between MPa and MPa, most of them are in overpressure flow. In recent years, branch pipe depression was widely used in projects, which became an important measure for watersaving. In the lower part of water supply subarea, the hydrostatic pressure of water supply after depression should take low value as possible on the condition that it satisfies the demand of rated flow of sanitary wares’ water supply fittings. It is suggested that, in higher part of water supply subarea, depression measures should be taken when the lowest hydrostatic pressure of sanitary wares’ water distribution points is more than MPa. B. Adopt depression measures Properly allocating relief fitting in water supply system means that hydraulic pressure should be limited within limiting value and reduce the threat of overpressure flow. 2020 International Conference on Digital Manufacturing amp。The Discussion of Watersaving Technology about Water Supply and Drainage in Building Qi Junfeng1,*, Yang Yanyan2, Hu Linpeng3 1. School of Municipal and Environmental Engineering, Jilin Institute of Architecture and Civil Engineering, Changchun, 2. Department of Thermal Energy Engineering, Collage of Automobile Engineering, JiLin University, Changchun, 3. Yatai Real Estate Development Co., Ltd. Changchun, Changchun, Abstract—According to the present situation of building water supply and drainage, analyzing the watersaving techniques of building water supply and drainage to achieve effective utilization of water resource. The watersaving techniques mainly include reasonably limiting the pressure of water distribution points and avoiding overpressure flow。s livelihood but also has bee a major constraining factor that preventing socioeconomic sustainable development. Therefore, we should focus on watersaving. Construction watersaving is system engineering. Except for formulating relevant laws and regulations related to watersaving, strengthening daily management and public education, using price leverage to promote water saving, in addition effective technical measures should be taken to ensure the implementation of construction watersaving thoroughly [1] . II. REASONABLE LIMIT THE PRESSURE OF WATER DISTRIBUTION POINTS AND AVOID OVERPRESSURE FLOW In article of Code for Design of Building of Water Supply and Drainage, domestic water supply system of highrise building should be vertical division. The hydrostatic pressure of residential water distribution points is less than MPa, while office building’s is less than MPa. In special circumstances the hydrostatic pressure is less than MPa。 when the municipal water supply pipeline is branched or there is only one water inlet pipe(except for second residential building). The volume of fire pool should meet the requirements of indoor and outdoor water use within the fire duration time. In this way, the volume of fire pool of every highrise building is very large by calculated, the volume will be from several hundreds of cubic meters to more than several thousand cubic meters. Generally the construction of fire pool has two ways, namely the bination of fire pool and drinking water tank, the construction of fire pool independently. In the case of bination of fire pool and drinking water tank, since most buildings’ fire water
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