建筑给排水设计及施工要点（Key points of design and construction of building water supply and drainage）.doc

建筑给排水设计及施工要点（Key points of design and construction of building water supply and drainage） Key points of design and construction of building water supply and drainage With the continuous improvement of living standards, to meet the needs of the residents of the high-quality residential, residential design and construction requirements with more adaptability and flexibility requirements, given higher residential technology content and cultural connotation. Now, the core of residential construction has changed from simply satisfying the living and living conditions of peoples food and clothing to providing all-round people-oriented and well-off living space. Many real estate developers regard senior housing as the focus of development, and a large number of comfortable, elegant and livable houses can be built. The following water supply and drainage design, construction of some of the problems discussed, so that we can better solve the problem in construction. 1 water seal for floor drain Article 4.5.9 of the building water supply and drainage design standard (GB50015-2003) stipulates that the sealing depth of water leakage with water seal shall not be less than 50mm.. The purpose of this regulation is to prevent the harmful gas from the sewage pipe from channeling into the indoor pollution and environmental sanitation after the water seal is damaged. But in the water supply and drainage design that rarely mentioned, building and construction units in order to reduce the cost of using the market price low floor drain, this Water Leakage letter is generally not more than 3 cm, can not meet the requirements of water depth. In addition, residents decorate the house, choose the stainless steel floor drain on the decoration market instead of the original plastic floor drain, although the appearance of bright and beautiful, the internal water seal is also very shallow. When draining, the water seal of the floor drain is destroyed due to the positive pressure (lower floor) or