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1. 发明授权

US06422822B1 Pressurized seal for submersible pumps 有权
标题翻译：潜水泵加压密封
公开(公告)号：US06422822B1
公开(公告)日：2002-07-23
申请号：US09594864
申请日：2000-06-15
申请人： Jeffrey Wayne Holmes
发明人： Jeffrey Wayne Holmes
IPC分类号： F04B4910
CPC分类号： F04D15/0263 , F04D13/083 , F04D29/128
摘要： A submersible pump employs a sealed, oil-filled chamber with a moisture-sensing probe to detect the presence of any pumpage, such as water, which has leaked into the chamber. If contamination is detected, the pump may be shut down for repairs before it fails. Two mechanical seals are installed the lower seal is located between the pump and the oil chamber and an upper seal is located between the oil chamber and the motor. The improvement disclosed herein combines a pressurized oil accumulator with the pump oil chamber described above. The accumulator is divided into two compartments separated by a bladder, one compartment being connected to the reservoir of the pump and filled with oil for providing make-up oil to the reservoir and for accepting surplus (expansion) oil from the reservoir. The second compartment is pressurized and applies pressure to the bladder that, in turn, transfers the pressure to the oil in the first compartment and to the oil-filled chamber. The purpose is to pressurize the pump oil chamber in order to equalize pressure across the seals and thereby prevent failure of the seals or, at least, extend their life. The invention also includes apparatus for purging the motor casing with air and a pressure transducer for detecting a decrease in reservoir oil pressure.
摘要翻译：潜水泵采用带有湿度传感探头的密封的充油室，以检测已经泄漏到室中的任何泵送物（例如水）的存在。如果检测到污染，泵可能会在故障之前关闭以进行维修。安装了两个机械密封件，下部密封件位于泵和油室之间，上部密封件位于油室和电机之间。本文公开的改进是将加压油储存器与上述的泵油室相结合。蓄能器被分成两个由气囊隔开的隔室，一个隔室连接到泵的储存器，并且填充有用于向储存器提供补充油并用于接收来自储存器的剩余（膨胀）油的油。第二隔室被加压并且向气囊施加压力，其又将压力传递到第一隔室中的油和充油室。目的是加压泵油室，以便均衡两个密封件之间的压力，从而防止密封件的故障，或至少延长其使用寿命。本发明还包括用于用空气吹扫马达壳体的装置和用于检测储层油压降低的压力传感器。

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