Pumping unit wellhead spiral wire rope pumping rod sealing device

The invention specifically discloses a pumping unitwellhead spiral wire rope pumping rod sealing device. The problems that the existing pumping unit wellhead sealingis poor in sealing effect andprone to damaging, and maintenance is time-consuming and laborious are solved. Arotating sleeve sleeves th...

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Hauptverfasser: AN LIANBAO, FAN SHIYAO, PENG YONGNING, LIANG XINWEN, PEI ZIMIN, HAO FANGFANG, YAN HUANJING, LYU TUWEI, LIANG YINGJING, LYU NING, WEN SHIMING, GUO DEXIU, WANG QIHUI, WU DONGDONG
Format: Patent
Sprache:chi ; eng
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