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color="#000000">  <b>当前位置Q?/b></font><a href="xinwen.html">行业资讯</a> </TD> </TR> <TR align="center"> <TD height=70 colspan="2"><strong><font size="5" color="#000000">泵设备的发展与应?</font></strong> <hr width="530" size="0" /> </TD> </TR> <TR align="center"> <TD height=22 colspan="2"><a href="http://www.pussyx888.com" target="_blank">http://www.pussyx888.com/ </a>( 2011-03-30 ) <a href="http://www.pussyx888.com/" target="_blank"><font color="#990000">中d密封技术网</font></a></TD> </TR> <TR> <TD height=1 colspan="2"></TD> </TR> <TR valign="top"> <TD height=691 align="left" valign="top" style="PADDING-BOTTOM: 0px; LINE-HEIGHT: 19px; PADDING-LEFT: 15px; PADDING-RIGHT: 15px; PADDING-TOP: 0px"><p> </p> <DIV class="STYLE1"> <p>核心提示Q܇是伴随着工业发展而发展v来的。据l计Q在1880q左叻I一般用途的d泵量占整量的90%以上Q而动力装|用c化工܇、矿q늭Ҏ用途的泵,仅占整个泵量的10%左右。? </p> </DIV> <DIV id="contents"> <DIV align="center"> <DIV align="left"> <p>泉|伴随着工业发展而发展v来的。据l计Q在1880q左叻I一般用途的<a href="http://www.pussyx888.com" target="_blank">d?/a>产量占整产量?0%以上Q而动力装|用c化工܇、矿q늭Ҏ用途的泵,仅占整个泵量的10%左右?/p> <p>  19世纪Ӟ国外已有了比较完整的늚型式和品U,q得Cq泛的应用。到1960q_一般用途的泵只?5Y002EaQ而特D用途的泵已?5%o2Ea?/p> <p>  据目前发展趋势,Ҏ用途的泵,会比一般用途的泉|占比例还要提高。早?0世纪初,潜水<a href="http://www.pussyx888.com" target="_blank">污水?/a>q国首先研制成功,用它来代替深井܇?/p> <p>  我国的潜水污水܇?0世纪60q代Q发展v来的Q其中作业面潜水甉|܇在南Ҏ已用于农田的灌溉Q且中小定w的潜水电泵已形成pdQƈ扚w投入了生产。大定w高电压的潜水甉|܇、潜水电动机也相l面世,500?200kw的大型潜水电泵均已在矿山投入q行?/p> <p>  随后Q西Ƨ各国也相q行研制Qƈ且不断加以改q,逐步完善。如德国的莱茵褐煤矿Q用各U潜水污水܇2500多台Q容量最高的?600kW、扬E?10m?/p> <p>  通常把用来抽吸液体、输送液体和使液体增加压力的机器l称为܇。从能量观点来说Q܇是一U{换能量的机器Q它把原动机的机械能转化输送液体的能量Q液体的流速和压力增加?/p> <p>  泵一般是用来液体从地势较低的地Ҏ怸来,沿管路输送到地势较高的地方去。例如,我们日常见到的,用܇把河,池塘中的水抽上来往农田里灌?又如把地下深井里的水抽吸上来q到水塔上去{?/p> <p>  ׃液体l过泵后压力可以提高Q所以܇的作用也可以用来液体从压力较低的容器中抽吸出来Qƈ克服沉K的d输送到压力较高的容器中或其他需要的地方Q例如,锅炉l水泵从低压水箱中抽吸水往压力较高的锅炉汽包内l水。܇的性能范围很广Q巨型的泉|量可大达几十万in/h以上;而微型的<a href="http://www.pussyx888.com" target="_blank">?/a>量则在几十mL/h以下。其压力可从常压一直高达l000MPa以上。它输送液体的温度最低可刎ͽ200C以下Q最高可?00C以上。܇输送液体的U类很多Q它可以输送水(清水、污水等)、a涌Ӏ酸液、^化液、悬液和液态金属等?/p> </DIV> </DIV> </DIV> 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