武漢螺耐斯設(shè)備有限公司為您提供螺耐斯(多圖)-螺桿泵轉(zhuǎn)子。 if you ignore the steam pressure, fluid dynamic friction loss&wellbore liquid pump suction, open an open chamber the maximum production pressure difference is 0.1mpa, as long as the pressure drop between the inlet&the chamber to form a chamber is less than the pressure difference, the wellbore fluid will be filled with the chamber, then screw pump can achieve the displacement perturbation theory.當(dāng)流體壓力降到蒸汽壓力以下,則出現(xiàn)氣蝕現(xiàn)象。如果一部分敞開的腔室被流體的蒸汽所充滿,當(dāng)腔室封閉、轉(zhuǎn)子施加正壓力后,蒸汽則凝析,會(huì)使泵出現(xiàn)脈動(dòng)和噪音。因此,為使泵能達(dá)到其理論排量和正常運(yùn)轉(zhuǎn),要求流體壓力大于其蒸汽壓力,并且吸入壓降小于