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                當前位置:首頁 > 新聞中心 > 水泵常識
                磁力泵輸出流量不夠的原因
                來源:www.yvettesblogs.com 發布時間:2014-09-11 15:04
                 磁力泵輸出流量不夠的原因
                 ?、?內外轉子的齒側間隙太大,使吸壓油腔互通.容積效率顯著降低,輸出流量不夠;
                 ?、?軸向間隙大大;
                 ?、?吸油管路中的結合面處密封不嚴等原因,使泵吸進空氣,有效吸入流量減少;
                 ?、?吸油不暢.如因油液粘度過大,濾油器被污物堵塞等導致吸入流量減少;
                 ?、?溢流閥卡死在半開度位置,泵來的流量一部分通過溢流閥返回油箱,而使得進入系統的流量不夠.此時伴隨出現系統壓力上不去的故障。
                  排除方法:
                 ?、?更換內外轉子,使齒側隙在規定的范圍內(一般小于0.07mm);
                 ?、?研磨泵體兩端面,保證內外轉子裝配后軸向間隙在0.02~0.05mm 范圍內;
                 ?、?更換破損的吸油管密封,用聚四氟乙烯帶包扎好管接頭螺紋部分再擰緊管接頭;
                 ?、?選用合適粘度的油液,清洗進油濾油器使吸油暢通。并酌情加大吸油管徑;
                 ?、?修理溢流閥,排除溢流閥部分短接油箱造成泵有效流量減少的現象。
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