This paper with the authors' experience of water supply and drainage construction project and the understanding, will be building indoor water supply system construction project results as a product, through all points in the process of quality control points of control to water supply and drainage engineering construction for perfect quality management.
Most of the current our country commodity house is semifinished product room, only guarantee that laying pipelines out water electricity, water supply and drainage installation project in the whole building project cost percentage of small, so get the attention of construction and installation company, to the project quality control and management has a lot of problems, not form a perfect quality management system. But with "paperback room" policy appearing, paper napkins our equipment installation project in the importance of the construction project must be constantly improved, water supply and drainage engineering quality management of the content is more and more rich, it must establish the perfect quality management system, the project quality can be assured.
1 building indoor water supply and drainage system composition
1.1 building indoor water supply system composition
Building indoor water supply system for the interiors of buildings is life, production and fire water supply a series of engineering facilities to provide safe combinations.paper tissue It and outdoor water system building water supply system by introducing pipe valves or water meter is bounded well well. The typical building indoor water supply system by the following several parts. (1) the drinking water system. For civil, public buildings and industrial enterprise within the building and the application of the cooking, washing, shower in life such as set by the water supply system said the drinking water system. The system in addition to meet the demand of water and water pressure outside, the water quality must meet the kingdom
Home life cited health standard. (2) the fire water system. For multi-layer and high-rise residential building or large public buildings, and the state's key protection of ancient architecture and some production workshop the water supply system, fire water demand is lower than the life of water quality standards for drinking water, but must abide by building the relevant provisions of the code for fire protection design, ensure adequate water and water pressure. (3) the production water system. More public buildings or factory in to used in the production process of water system. For example of the air conditioning system and cooling water cooling water, laundry washing water, boiler water and cold drinks products such as water. Due to the different production technology, the production water on water quality, water quantity, water pressure requirements difference is very big.
1.2 building indoor the composition of the drainage system
Building indoor drainage system, its task will be to people living or used in the production process of water collected, and sometimes through the necessary processing, and promptly platoon to arrive outdoor drainage system. Building drainage system by their acceptance of sewage and waste water of the different nature, can be divided into three groups. (1) life drainage system. Life drainage system and exclude structures within the acceptance of black water and waste water washing. (2) rainwater drainage system. Rainwater drainage system is accepted rule out building roof, metope, window well, the water pours drainage system. (3) industrial waste water system. Industrial wastewater drained out of the production process is the floorboard of the waste water pollution.
2 building indoor water supply and drainage system construction quality management
Building indoor water supply and drainage system is part of the construction project, the construction process and construction structure construction closely related, according to the construction progress, mainly divided into the following several stages.
2.1 material purchasing stage
The construction units in the purchase process should set the material purchasing plan, purchasing plan generally shall include the following contents: name, class, type, specification, quantity, quality requirements, delivery mode, delivery date and other information. In purchasing products after comes into play, the construction unit shall purchase the products for inspection, to ensure that purchased product meets specified purchase requirements. Inspection content mainly includes: (1) building water supply and drainage engineering by use of main materials and finished products, semi-finished products, fittings, instruments and equipment must have the Chinese quality qualification documents, specifications, models and performance test report and accord with national technology standard or the design requirements.