气锁阀是仪表辅助装置,当压缩气源发生故障停止供气时,利用气锁阀切断阀门控制通道,使阀门位置保持断气前的位置。以保证工艺过程的正常进行,直到系统中事故消除重新供气后气锁阀才打开通道,恢复正常时的控制。 气锁阀 NT-40002为双作用气锁阀,NT-40001为单作用气锁阀。
这种抽油泵柱塞游动阀采用机械强制开启和关闭的结构,柱塞为等径光管、浮动结构,可防止发生气锁游动阀、阀球关闭滞后、砂卡柱塞现象。
The travelling valve of the pump is designed to be closed and opened forcibly, and the pump plunger adopts equal-diameter bare pipe with a floating structure to prevent gas lock and sand sticking.
摘要 : 针对注气井CO2气窜而造成生产井气油比上升,常规管式泵游动阀打不开而导致的“气锁”问题,研制了CO2驱中空强制拉杆式防气泵。
Abstract : To address the issue of "gas lock" caused by CO2 gas-channeling in gas injection wells, the forced pull rod type hollow gas prevention pump for CO2 flooding has been developed.
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