Hydraulic control system of subsurface safety valve
The utility model belongs to the technical field of subsurface safety valves, and discloses a hydraulic control system of a subsurface safety valve, which is used for controlling opening and closing of the subsurface safety valve and comprises a liquid tank, the liquid tank is connected with a hydra...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model belongs to the technical field of subsurface safety valves, and discloses a hydraulic control system of a subsurface safety valve, which is used for controlling opening and closing of the subsurface safety valve and comprises a liquid tank, the liquid tank is connected with a hydraulic pump, and the output end of the hydraulic pump is connected with one end of a first valve and one end of a second valve through pipelines. The other end of the second valve is connected with a high-pressure opening of the pressure cylinder and one end of a third valve, the other end of the first valve and a low-pressure opening of the pressure cylinder are connected with one end of a fifth valve, the other end of the fifth valve is connected with a liquid box, and the other end of the third valve is connected with one end of a fourth valve and an oil pressure output connector. The other end of the fourth valve is connected with one end of a metering valve, the other end of the metering valve is connected with |
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