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立式管(guǎn)道離心泵(bèng)的安(ān)裝

立式管道離(lí)心泵的安裝技(jì)術關鍵在于确(què)定離心泵安(ān)裝高度即吸(xī)程。這(zhè)個高度(dù)是指水源水(shuǐ)面(miàn)到 立式管道離心泵 葉輪中(zhōng)心(xīn)線的垂(chuí)直距離，它(tā)與允許吸(xī)上(shàng)真(zhēn)空高(gāo)度不(bú)能混爲一談(tán)，水(shuǐ)泵産品說(shuō)明書或銘(míng)牌上(shàng)标示的(de)允許吸上真空高度是指水泵進水口斷面(miàn)上的真空值，而且是(shì)在1标準大氣壓(yā)下、水溫20℃情況下(xià)，進行(háng)試驗而測定得的。它并沒有考(kǎo)慮吸水(shuǐ)管(guǎn)道配套以(yǐ)後(hòu)的水流狀況。而水泵安(ān)裝高(gāo)度應該是(shì)允許吸上(shàng)真空高度扣除了吸(xī)水管道損失揚程以(yǐ)後，所剩下(xià)的那(nà)部分(fèn)數值(zhí)，它(tā)要(yào)克服實際(jì)地形吸水(shuǐ)高度。水泵(bèng)安裝(zhuāng)高度(dù)不能超(chāo)過計算(suàn)值，否(fǒu)則(zé)，離心泵(bèng)将(jiāng)會抽不(bú)上水(shuǐ)來。另外，影響計(jì)算值的(de)大小是吸水管(guǎn)道的阻(zǔ)力損失揚程，因(yīn)此，宜(yí)采(cǎi)用短的(de)管路布置，并盡(jìn)量少(shǎo)裝彎(wān)頭等(děng)配件，也(yě)可考慮适當(dāng)配大(dà)一些(xiē)口徑(jìng)的 立式管(guǎn)道離心(xīn)泵 水(shuǐ)管，以減(jiǎn)管内流速(圖\文 xiaojikuaipao.top/ )。
中(zhōng)譯(yì)英：
vertical pipeline centrifugal pump installation technology is the key to determine the suction centrifugal pump installation height. this highly refers to the water surface to the vertical pipeline centrifugal pump impeller centerline vertical distance, and it allows suction vacuum height can not be confused, pump product brochures or nameplate marking allows suction vacuum height refers to the value of the vacuum on the water inlet of the water pump section, and in1 standard atmospheric pressure, water temperature 20℃condition next, the test and measurement. it does not take into account the suction pipe supporting later flow condition. and the pump mounting height should be allowed to deduct the suction vacuum suction piping loss of lift, the remaining portion of numerical value, it is to overcome the real terrain suction height. pump mounting height should not exceed the calculated value, otherwise, centrifugal pump will be pumped to not sheung shui. in addition, affect the calculation value is the size of the suction piping resistance loss of lift, therefore, should adopt the most short circuit arrangement, and minimize the loaded elbow parts, may also be considered appropriate with a larger caliber vertical pipeline centrifugal pump water pipe, to reduce the flow velocity in the tube.

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