外文翻譯---建筑給排水的節(jié)水節(jié)能措施(文件)
【正文】 water heater: solar energy as a clean energy, unlimited, unlimited, is the important way of energy saving. The solar water heater is posed of collector, storage water tank, water tank, circular tube, the circulating pump, pipes, etc. North of the most areas in China were under 40 degrees north latitude, the sunshine for a long time, are suitable for promotion of solar water heater. according to the current use of solar energy water heater technology, can be divided into the form of the collector plate type and tube type. water heater is used in homes, now use natural circulation ways, more and for the single cycle, the heated in the collector that directly into the storage tank to provide water to use. Simple structure, low cost, antifreeze ability weak. type vacuum tube, allglass vacuum tube structure is simple, moderate price, the water in the glass tube is heated directly, the household water heater is generally posed of the vacuum tube directly connected to the unconfined water tank, water method is used to get the hot water. Also have adopted metal tube bination pressure type and using ushaped tube bination of separate, in different regions are used throughout the year. With antifreeze, pressure and resistance to hot and cold impact ability.5 Rational utilization of municipal pipe network pressure In urban water supply, the size is different according to the urban water supply, municipal water supply pipe network pressure generally between ~ MPa, meet only 3 ~ 5 layers of multilayer buildings water supply pressure, there is no guarantee that highrise building water supply pressure. Rational utilization of municipal pipe network pressure, using the partition way of water supply can reduce secondary pressure energy consumption.6 develop second resource water Water from the building drainage, including people in daily life of sewage and waste water of life. Life waste water including the cooling water drainage, shower, toilet, laundry, drainage and drainage drainage kitchen drainage miscellaneous drainage, etc. Does not contain the kitchen drainage miscellaneous drainage called highquality miscellaneous drainage. Water refers to the various drainage after processing, meet the prescribed standards for water quality, and can be within the scope of the living environment, such as, municipal, and miscellaneous water. Our share of residential building displacement of domestic wastewater was 69%, 87%, hotel and restaurant buildings is 40%, if collected after purification treatment for water, and used as building miscellaneous water and miscellaneous water city, such as toilet flushing, road cleaning, urba
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