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4、經濟上要概括考慮到設備費、工作費、維修費和管理費的總成本最低。<br /> <br /> 5、離心泵具有轉速高、體積小、重量輕、效率高、流量大、結構簡略、輸液無脈動、功用平穩、簡單操作和維修便利等特色。<br /> <br /> 6、有計量要求時，選用計量泵。<br /> <br /> 7、揚程要求很高，流量很小且無適宜小流量高揚程離心泵可選用時，可選用往復泵，如汽蝕要求不高時也可選用旋渦泵。<br /> <br /> 8、揚程很低,流量很大時，可選用軸流泵和混流泵。<br /> <br /> 7、介質粘度較大(大于650~1000mm2/s)時，可考慮選用轉子泵或往復泵(齒輪泵、螺桿泵)。<br /> <br /> 9、介質含氣量75%，流量較小且粘度小于37.4mm2/s時，可選用旋渦泵。<br /> <br /> 10、對發動頻頻或灌泵不便利的場合，應選用具有自吸功用的泵，如自吸式離心泵、自吸式旋渦泵、氣動(電動)隔膜泵。<br /> <br /> 選型依據泵|水泵廠家|水泵價格|杭州水泵|浙江水泵<br /> <br /> 泵選型依據，應依據工藝流程，給排水要求，從五個方面加以考慮，既液體運送量、設備揚程、液體性質、管路布置以及操作工作條件等。<br /> <br /> 一、流量是選泵的重要功用數據之一，它直接關系到整個設備的的生產能力和運送能力。如設計院工藝設計中能算出泵正常、最小、最大三種流量。選擇泵時，以最大流量為依據，統籌正常流量，在沒有最大流量時，通?？扇≌Ａ髁康?.1倍作為最大流量。<br /> <br /> 二、設備系統所需的揚程是選泵的又一重要功用數據，一般要用擴展5%—10%余量后揚程來選型。<br /> <br /> 三、液體性質，包括液體介質名稱，物理性質，化學性質和其它性質，物理性質有溫度c密度d，粘度u，介質中固體顆粒直徑和氣體的含量等，這涉及到系統的揚程，有效氣蝕余量核算和適宜泵的類型：化學性質，主要指液體介質的化學腐蝕性和毒性，是選用泵資料和選用那一種軸封型式的重要依據。<br /> <br /> 四、設備系統的管路布置條件指的是送液高度送液間隔送液走向，吸如側最低液面，排出側最高液面等一些數據和管道規范及其長度、資料、管件規范、數量等，以便進行系統揚程核算和汽蝕余量的校核。泵|水泵廠家|水泵價格|杭州水泵|浙江水泵<br /> <br /> 五、操作條件的內容很多，如液體的操作T豐滿蒸汽力P、吸入側壓力PS（肯定）、排出側容器壓力PZ、海拔高度、環境溫度操作是空隙的仍是接連的、泵的方位是固定的仍是可移的。</p> <p style="margin-left:0px; margin-right:0px">杭州桂冠環?？萍加邢薰荆?a href="http://www.wesgrimes.com">www.wesgrimes.com</a>）專業生產水泵的廠家</p> </div> </div> <div class="prev_next"> <ul> <li><p><a href="/newsshow_447.html">上一條：立式多級離心泵發生振蕩的緣由</a></p></li> <li><p><a href="/newsshow_445.html">下一條：立式管道泵訂購須知</a></p></li> </ul> </div> </div>    <div class="ly_foot"> <div class="ft_main"> <ul> <li> <h6>關于桂冠</h6> <a href="/about.html">企業簡介</a> <a href="/about1.html">企業榮譽</a> <a href="/about2.html">企業巡視</a> <a href="/about3.html">人才中心</a> <a >官方博客</a> </li> <li> <h6>技術服務</h6> <a href="/articlelist_t1.html">水泵資訊</a> <a href="/articlelist_t2.html">技術問答</a> <a href="/articlelist_t3.html">工作原理</a> <a href="/articlelist_t4.html">使用說明</a> <a href="/articlelist_t5.html">維修保養</a> <a href="/video.html">水泵視頻</a> </li> <li> <h6>新聞中心</h6> <a href="/newslist_t1.html">企業新聞</a> <a href="/newslist_t2.html">現場服務</a> <a 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