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</div> </div> <div id="wyqzvp0isa" class="ny_right"> <div id="wyqzvp0isa" class="ny_pro"> <div id="wyqzvp0isa" class="ny_bt"> <span>您现在的位置?a href="/index.htm">首页</a> >> <a href="/news/">新闻中心</a> >> 新闻详细</span><b>新闻中心</b></div> <div id="wyqzvp0isa" class="zuixiao"> <div id="wyqzvp0isa" class="newslist"> <div id="wyqzvp0isa" class="newshow"> <h1> 水泵选型原则和水泵选型方法</h1> <h2> 信息来源?上海上久泵业制造有限公?发布日期?011/8/11 点击?/h2> <ul> <li id="newsContent"><p><span style="font-size:small;"><span style="font-family:宋体;"><span style="font-family:宋体;"><span style="font-size:small;"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;"><span style="font-family:宋体;"><span style="font-size:small;"><a href="http://caen-hotel-caen.com" target="_blank"><strong><span style="color:#337fe5;">水泵</span></strong></a><span style="color:#666666;">知识:根据水泵选型原则,使用合理的水泵选型方法能延长泵类产品的使用寿命,提高泵的工作效率及降低耗能。最终达到经济、高效、节能的目的?/span></span></span><span style="color:#666666;"> </span></span></span></span></span></span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;"><span style="font-family:宋体;"><span style="font-size:small;"><span style="font-family:宋体;"><span style="color:black;font-size:10.5pt;"><b><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">水泵选型的原则:经济、高效、节?/span></span></b></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">一</span><span style="color:#666666;">.</span><span style="font-family:宋体;color:#666666;">经济则:根据介质的比重、粘度、腐蚀性等特性,选择最恰当的泵材质及最适合的泵类型,从而保证泵的使用寿命?/span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">?/span><span style="color:#666666;">.</span><span style="font-family:宋体;color:#666666;">高效原则:尽量选择高效率的水泵,在性能参数同样适合时尽量选用大泵,因为大泵比小泵效率高?/span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">?/span><span style="color:#666666;">.</span><span style="font-family:宋体;color:#666666;">节能原则:尽量让泵在等于或接近额定工况的情况下使用,这样能提高水泵的运行效率。除此之外还应充分考虑到泵联合工作时的情形,尽量使水泵各种情形下都保持高效?/span></span></p> <p><span style="font-size:small;"><b><span style="font-family:宋体;color:#666666;">水泵选型的方法(步骤?/span></b><span style="font-family:宋体;color:#666666;">?/span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">一</span><span style="color:#666666;">.</span><span style="font-family:宋体;color:#666666;">列出基本数据?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">1</span><span style="font-family:宋体;color:#666666;">、介质的特性:介质名称、比重、粘度、腐蚀性、毒性等?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">2</span><span style="font-family:宋体;color:#666666;">、介质中所含因体的颗粒直径、含量多少?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">3</span><span style="font-family:宋体;color:#666666;">、介质温?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">4</span><span style="font-family:宋体;color:#666666;">、所需要的流量</span></span></p> <p><span style="color:#666666;font-size:small;"><span style="color:#666666;">5</span><span style="font-family:宋体;color:#666666;">?/span> <span style="font-family:宋体;color:#666666;">压力:吸池压力,排水池压力,管道系统中的压力降(扬程损失)?/span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">?/span><span style="color:#666666;">. </span><span style="font-family:宋体;color:#666666;">确定流量和扬?/span><span style="color:#666666;">:</span></span></p> <p><span style="color:#666666;font-size:small;"><span style="color:#666666;">1</span><span style="font-family:宋体;color:#666666;">、流量是选泵的重要性能数据之一,它直接关系到整个装置的的生产能力和输送能力?/span> <span style="font-family:宋体;color:#666666;">如设计院工艺设计中能算出泵正常、最小、最大三种流量。选择泵时,以最大流量为依据,兼顾正常流量,在没有最大流量时,通常可取正常流量?/span><span style="color:#666666;">1.1</span><span style="font-family:宋体;color:#666666;">倍作为最大流量?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">2</span><span style="font-family:宋体;color:#666666;">、装置系统所需的扬程是选泵的又一重要性能数据,一般要用放?/span><span style="color:#666666;">5%</span><span style="font-family:宋体;color:#666666;">?/span><span style="color:#666666;">10%</span><span style="font-family:宋体;color:#666666;">余量后扬程来选型?/span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">?/span><span style="color:#666666;">. </span><span style="font-family:宋体;color:#666666;">确定泵的材质</span><span style="color:#666666;">:</span></span></p> <p><span style="color:#666666;font-size:small;"><span style="color:#666666;">1</span><span style="font-family:宋体;color:#666666;">?/span> <span style="font-family:宋体;color:#666666;">泵的材质必须满足介质特性的要求:液体性质,包括液体介质名称,物理性质、化学性质和其它性质。物理性质有温?/span><span style="color:#666666;">c</span><span style="font-family:宋体;color:#666666;">密度</span><span style="color:#666666;">d</span><span style="font-family:宋体;color:#666666;">,粘?/span><span style="color:#666666;">u</span><span style="font-family:宋体;color:#666666;">,介质中固体颗粒直径和气体的含量等,这涉及到系统的扬程、有效气蚀余量计算和合适泵的类型;化学性质,主要指液体介质的化学腐蚀性和毒性,是选用泵材料和选用那一种轴封型式的重要依据?/span></span></p> <p><span style="font-size:small;"><span style="font-family:宋体;color:#666666;">?/span><span style="color:#666666;">. </span><span style="font-family:宋体;color:#666666;">确定泵的种类?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">1</span><span style="font-family:宋体;color:#666666;">根据装置的布置、地形条件、水位条件、运转条件,确定选择卧、立式和其它型式</span><span style="color:#666666;">(</span><span style="font-family:宋体;color:#666666;">管道式、潜水式、液下式、无堵塞式、自吸式、齿轮式?/span><span style="color:#666666;">)</span><span style="font-family:宋体;color:#666666;">的泵?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">2</span><span style="font-family:宋体;color:#666666;">、根据液体介质性质,确定清水泵,热水泵还是油泵、化工泵或耐腐蚀泵或杂质泵,或采用无堵塞泵。安装在爆炸区域的泵,应根据爆炸区域等级,采用相应的防爆电动机?/span></span></p> <p><span style="font-size:small;"><span style="color:#666666;">3</span><span style="font-family:宋体;color:#666666;">、根据流量大小,确定选单吸泵还是双吸泵;根据扬程高低,选单级泵还是多级泵,高转泵还是低转速泵</span><span style="color:#666666;">(</span><span style="font-family:宋体;color:#666666;">空调?/span><span style="color:#666666;">)</span><span style="font-family:宋体;color:#666666;">、多级泵效率比单级泵低,如选单级泵和多级泵同样都能用时,首先选单级?/span></span></p> </span></span></span></span></span></span> </li> </ul> </div> <div id="wyqzvp0isa" class="xgxw"> <p> <font>相关资讯</font></p> <ul> <li><a href="/newsshow/2011081602.htm" target="_blank">螺杆泵在污水处理领域的运?/a></li><li><a href="/newsshow/2011101601.htm" target="_blank">国内外泵设备的应用与发展</a></li><li><a href="/newsshow/2011111302.htm" target="_blank">中国泵业将迎来发展良?/a></li><li><a href="/newsshow/2011112902.htm" target="_blank">“十二五”钢铁工业着力产业升?/a></li><li><a href="/newsshow/2011120202.htm" target="_blank">我国五金机电业加快转型步伐战略分?/a></li><li><a href="/newsshow/2012021701.htm" target="_blank">我国油泵行业技术呈多元化发展趋?/a></li><li><a href="/newsshow/2013012501.htm" target="_blank">上海上久泵业2013年春节放假通知</a></li><li><a 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