Report on high-speed characteristics of ERM8\/ERF8-16mm docking height
Release time:2022-09-26 15:45:13
Legal analysis: In accordance with the requirements of the \"Notice on Printing and Issuing\" (Jian Biao [2014] No. 189) issued by the Ministry of Housing and Urban Rural Development, the standard preparation team has conducted extensive investigation and research, carefully summarized practical experience, referred to relevant international standards and advanced foreign standards, and revised the outdoor water supply design standards based on extensive solicitation of opinions. This standard is divided into 12 chapters and 1 appendix, mainly including: general principles, terminology, water supply system, design water volume, water intake, pump room, transmission and distribution water, overall design of water plants, water treatment, sludge treatment of water purification plants, emergency water supply, detection and control, etc.
Legal basis: Article 3 of the \"Indoor Water Supply Design Standards\"
The selection of the first water supply system should be based on local terrain, water source conditions, urban and rural planning, urban-rural coordination, water supply scale, water quality, water pressure, and safety water supply requirements, combined with existing water supply engineering facilities, starting from the overall situation, and after comprehensive consideration through technical and economic comparison.
The second type of urban water supply system with large terrain elevation difference should adopt partial pressure water supply. For water supply areas far away from water plants or with high local terrain, pressurized pumping stations can be set up and partitioned water supply can be used.
When industrial enterprises with high water consumption are relatively concentrated and suitable water sources are available, an independent industrial water supply system can be set up through technical and economic comparison, using differentiated water supply.
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When there is a terrain height difference between the water source area and the water supply area that can be utilized, a technical and economic comparison should be made between the gravity water transmission and distribution system and the pressurized water transmission and distribution system to select the best one.
When the water supply system adopts regional water supply to supply water to multiple towns with a wide range, the layout of raw water or clean water transmission, water transmission pipelines, and the setting of regulating water tanks, booster pump stations, etc. should be adopted. After comparing the technical and economic aspects of multiple schemes, the determination should be made