有许多著作研究了杆式深井泵进口处气体分离条件,提出了确定进入杆式深井泵内气体体积的计算公式。但是这些公式并不通用,只在个别情况下才是正确的。分离系数,即泵敞开进口处气体分离能力指标,是多参数的函数,可由下式表示 There are many works to study the gas separation conditions at the inlet of a rod-type deep well pump, and a formula to determine the gas volume entering the rod-type deep well pump is proposed. However, these formulas are not universal and only correct in some cases. The separation factor, which is the index of the gas separation capacity at the open inlet of the pump, is a function of multiple parameters and can be expressed by the following equation