thediscussionofwater-savingtechnologyaboutwatersupplyanddrainageinbuilding-外文文獻(xiàn)-在線瀏覽
2024-07-23 12:30本頁(yè)面
【正文】 x), polypropylene pipe (PPR), polybutylene pipe (PB) and acrylonitrilebutadienestyrene pipe (ABS), etc. Composite pipes include AluminiumPlastic Composite pipes， plasticcoated steel tube, steelplastic posites pipe，etc. Metal pipes have copper pipes and stainless steel tube, etc. Compared with Galvanized steel pipes, plastic pipes have advantages in economy. Although the cost of Copper pipes and stainless steel tube is higher, the mean life may last longer and also can be used for hot water system. So we had better consider 670669the construction’s function, property, specification, the level and water supply before choose the appropriate highquality water supply pipes. The valve is the most mon accessory in building water supply and drainage, whose types and level of quality is the key of affecting watersaving. Generally speaking, the globe valves shut tighter than gate valves, and gate valves shut closer than butterfly valves. Hydraulic valves overe the large size of float valves, and overe the overflow and other disadvantages caused by plug stuck。 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 waterstorage is much greater than drink waterstorage, drink water stays too long in tank to result poor water quality because of the exhaust of residual chlorine. Therefore，drinking water tank and fire pool should be established separately in the new building construction. Not only the construction of fire pool independently occupies valuable building space that costs a lot of construction investment, but also fire water is easy to be smelly because of fire water’s lower frequency of use. In order to ensure fire water quality, we have to replace fire water regularly which results in waste of water resource. Therefore, I put forward some suggestions about the construction of fire pool. A. Adapt the regional cooperation mode of fire pool With the development of city construction, the density of highrise buildings grows quickly. Government departments should coordinate the relevant units and departments to promote that the adjacent buildings in the same block share the same fire pool and establish shared control center according to the actual situation. The design of fire pool should be accordance with the maxim fire water volume of building use. Relevant beneficiaries undertake certain cost according to the scale of building. In this way, we can save investment, reduce waste water, and ensure the fire water. B. Develop reclaimed water as the source of fire water At present, some cities with severe water shortages in our country have carried out to explore the construction of reclaimed water system. It demands that reclaimed water system should be established in the public buildings, especially in large hotels, guesthouses, etc. If we develop reclaimed water as the source of fire water, the source of drinking water can be saved in large quantity. If we recycle reclaimed water reasonably, utilize reclaimed water and bine it with fire water to form effective circulation, the secondary pollution problem caused by the long time stay of fire water can be solved. C. Make full use of municipal w
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