Deep sea automatic compensation type full deep sea hydraulic control stop valve

Abstract

The invention belongs to the field of valves, and particularly discloses a deep sea automatic compensation type full deep seat hydraulic control stop valve. The deep sea automatic compensation type full deep sea hydraulic control stop valve comprises a valve body, a valve bush assembly and a valve core assembly. An inlet and an outlet are formed in the side face of the valve body, the valve bush assembly is mounted in the valve body in an embedded mode, and comprises a spring cap, a compression rod valve bush, a valve core cap, a valve seat, a compression sheet, a push rod valve bush substrateand a plug, the spring cap is connected with the upper end of the valve body, a compression rod balance port is formed in the spring cap, and a groove for mounting a spring is formed in the lower endof the spring cap. A valve port and a valve seat flow guide hole are formed in the valve seat, a valve core cap chamber and a valve core cap circulation hole are formed in the valve core cap, the plug is connected with the lower end of the valve body, and a control port is formed in the plug. The valve core assembly comprises a compression rod, a valve core and a push rod, the compression rod isinserted into the compression rod valve bush and the valve core cap sequentially, the valve core is arranged in a cavity formed between the valve core cap chamber and the valve port, the lower end ofthe push rod is mounted in the push rod valve bush substrate, and the upper end of the push rod is inserted into the compression sheet and the valve seat in sequence. The deep sea automatic compensation type full deep sea hydraulic control stop valve has the advantages of being stable in working property, good in airtightness, capable of achieving automatic compensation and the like.

Description

technical field [0001] The invention belongs to the field of valves, and more specifically relates to a sea depth automatic compensation type full-sea deep hydraulic control cut-off valve, which can be applied to the opening and closing control of pipelines in water hydraulic systems in deep sea equipment. Background technique [0002] The vast ocean, which accounts for 70% of the earth's area, is a treasure house of resources for human survival and development. However, more than 90% of the sea area has a sea depth between 200 and 6000 meters, with an average sea depth of 3730 meters. Due to the rich mineral resources in the deep sea, the development of the ocean has also begun to move from the shallow sea to the deep sea. Large-depth manned or unmanned submersibles are an important carrier for ocean development to go deep. The seawater ballast regulation system is an important subsystem of the submersible, and it is the development direction of the ballast regulation of th...

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Problems solved by technology

[0004] At present, the globe valves on the market are generally controlled by air control, manual control, electric control and hydraulic control. Due to the limitation of working pressure, it can only work in occasions with low rated pressure. Since the globe valve is completely immersed in high-pressure seawater when the globe valve works in deep sea, none of the globe valves used on land can meet the requirements of deep sea conditions, and the previous type The structure of the regulating valve is generally a cone valve structure, and the self-aligning ability of the regulating valve spool is poor, and due to the particularity of the buoyancy regulating system, this type of regulating valve will have problems under certain special working conditions

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