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计量仓的开闭机构 ,由气缸设在井筒侧 ,改造成气缸设在非井筒侧的平衡闸门机构。可快速开闭闸门 ,增加提升能力 ,并且使维修人员有一个安全的工作环境 ,缩短维修时间。
The opening and closing mechanism of the metering chamber is composed of a cylinder arranged on the side of the wellbore and a balance gate mechanism arranged on the non-wellbore side of the cylinder. Can quickly open and close the gate, increase the ability to enhance, and make maintenance staff have a safe working environment, shorten the repair time.