The crux of the matter should proceed from the fundamental and thorough solution to pump in a sealed, overload and other problems, this is a more proactive approach.
问题的关键应该是从根本着手，彻底解决泵在密封、过载等方面的问题，这才是一种较为主动的办法。
2
Screw pump body and at the same time, each other between the screw and screw and form a sealed chamber, ensure airtight, otherwise there may be liquid backflow from the gap.
同时螺杆与泵体、螺杆与螺杆间又相互形成密封腔，保证密闭，否则就可能有液体从间隙中倒流回去。
3
Accumulator Tank: a sealed air chamber combined with a water reservoir provides expansion volume to reduce pump cycling from minor pressure changes and give a steady flow.