【正文】
and other miscellaneous, so as to replace the same amount of water, this is equivalent to increase the city39。 附錄 B Building water supply and drainage water saving energy saving measures The introduction China is a country with a shortage of water resources, it is a country with a large population, the contradiction between supply and demand of water resources is particularly outstanding. According to data shows that the per capita water resources is only equivalent to 1/4 of the world per capita level, 110, the world is listed as one of the world 13 PinShuiGuo. In the national 666 JianZhiShi at present, there are more than 330 urban poor in different degrees of water, serious water shortage of up to 108 of them, water scarcity affects industrial output 230 billion yuan a year. Therefore, how to open up new sources of water, or cherish water, saving is of great significance. 1 use watersaving sanitary ware, reduce water consumption and pressure energy consumption to porcelain core watersaving faucet and aeration tap instead of ordinary faucets. In the water pressure under the same conditions, watersaving faucet has better water saving effect than ordinary faucet, water quantity of 3% ~ 50%, most of between 20% ~ 30%. And the static pressure is higher, ordinary tap water, the greater the amount of water saving watersaving faucet. Therefore, should be in the building (especially in excess water pressure of water distribution point) install and use watersaving faucet, to reduce waste. using a small volume toilet water tank. At present our country is promoting use of 6 l water tank watersaving closet pan. Designers should guarantee the normal work of the drainage system under the condition of water closet pan suggest users using a small volume. Also can refer to foreign (Israel), by using two flushing cistern: when two gears flushing cistern flush urine, flush of 4 l (or less)。按規(guī)定:生活給水系統(tǒng)按靜水壓力不大于 300kPa~ 400kPa 分區(qū)為宜,消防給水系統(tǒng)按靜水壓力不大于 800kPa 分區(qū)為宜?,F(xiàn)在我國(guó)的大多數(shù)建筑都將屋頂?shù)挠晁苯优湃胧姓晁艿?,這不僅增加了市政雨水管道的承受能力,加大了管徑﹑增加了造價(jià),同時(shí)也是一種對(duì)水資源的浪 費(fèi)。中水指的是各種排水經(jīng)過(guò)處理后,達(dá)到規(guī)定的水質(zhì) 標(biāo)準(zhǔn) ,可在生活、市政、環(huán)境等范圍內(nèi)雜用的非飲用水。合理利用市政管網(wǎng)壓力,采用分區(qū)供水方式可以減少二次加壓能耗。 真空管型:全玻璃真空管結(jié)構(gòu)簡(jiǎn)單,價(jià)格適中,水在玻璃 管內(nèi)直接被加熱,其組成的家用熱水器一般是將真空管直接接入非承壓水箱,采用落水法取熱水。我國(guó)大部分地區(qū)均處于北緯 40 度以北,日照時(shí)間較長(zhǎng),均適合推廣太陽(yáng)能熱水器。但在我國(guó),過(guò)濾器的效用還未引起人們的足夠重視,只是在少數(shù)場(chǎng)合應(yīng)用。為此,應(yīng)采取措施提高水 表計(jì)量的準(zhǔn)確性。如有的建筑物水表型號(hào)過(guò)大,當(dāng)用水量較小時(shí),水表指針基本不動(dòng)??梢栽谒|(zhì)較好和供水壓力較穩(wěn)定的情況下采用。 減壓孔板和節(jié)流塞減壓孔板相對(duì)于減壓閥來(lái)說(shuō),系統(tǒng)比較簡(jiǎn)單,投資較少,管理方便。目前,光電控制小便器已在一些公 共建筑中安裝使用。 采用延時(shí)自閉式水龍頭和光電控制式水龍頭的小便器、大便器水箱。 使用小容積水箱大便器。 1 使用節(jié)水型衛(wèi)生器具,減少用水量及加壓能耗 以瓷芯節(jié)水龍頭和充氣水龍頭代替普通水龍頭。中文 2662 字 附錄 A 建筑給排水的節(jié)水節(jié)能措施 引言 我國(guó)是一個(gè)水資源短缺的國(guó)家,又是一個(gè)人口眾多的國(guó)家,水資源供需矛盾尤其突出。因此,如何開(kāi)辟新的水源,節(jié)約或珍惜用 水,具有重要意義。因此,應(yīng)在建筑中(尤其在水壓超標(biāo)的配水點(diǎn))安裝使用節(jié)水龍頭,以減少浪費(fèi)。也可以參考國(guó)外(以色列)的做法,采用兩檔沖洗水箱:兩檔沖洗水箱在沖洗小便時(shí),沖水量為 4L(或更少);沖洗大便