双螺杆多相混输泵的技术改进

Technical reform of two-screw multiphase pump.

双螺杆多相混输泵在使用中存在泵体及螺旋套磨损快、油封处漏油、泵的使用寿命短等情况。为此 ,通过改换螺旋套及主、从动轴材质 ,以及对螺旋套耐磨性差 ,主、从动轴油封处磨损快 ,泵体“8”字孔表面处理 ,优选机械密封和混输泵流程等方面进行技术改进 ,提高了双螺杆多相混输泵的泵效和使用寿命。经改进后 ,螺旋套的寿命由原来的 70 0h提高到 70 0 0h ,泵体“8”字孔的表面硬度达到 10 0 0～ 12 0 0HV ,混输泵已运转 6 0 0 0h以上 ,使用效果良好。

In view of the problems with the use of two-screw multiphase pump, measures for technical reform is put forward, including replacing the scroll cover and changing the material of screws and shafts, conducting surface treatment on the 8-shaped hole in pump body, making optimal selection of the mechanical seal and pump flow. After the technical reform, both the service life and working efficiency of the multiphase pump is improved remarkably.