Lengthening operating device for underwater ball valve

Abstract

The invention discloses a lengthening operating device for an underwater ball valve. The lengthening operating device comprises a lengthening operating unit and a lengthening indicating device which are mounted on an operating platform, wherein the lengthening operating unit is provided with a first extension rod, a reducing sleeve which sleeves the first extension rod, and a first square head which is connected with one end of the reducing sleeve in a pivoted manner; the other end of the reducing sleeve is connected with a first driving shaft; a plurality of bearings are mounted on the first driving shaft; a first end cover of each bearing is mounted at the top end of the first square head; the lengthening indicating device is provided with a second extension rod, a first connecting sleeve which sleeves the second extension rod, an indicating shaft which is mounted at the upper part of the first connecting sleeve, and a plurality of sliding bearings which are mounted on the indicating shaft; a second end cover of each sliding bearing is mounted at the top end of a second square head. The lengthening operating device disclosed by the invention can be used for implementing personalized regulation on the operation position of the underwater ball valve and realizing unified operation on the operating platform, so the work efficiency is greatly improved; moreover, the lengthening operating device can work in deep sea and in a bad work environment.

Description

technical field [0001] The invention relates to an underwater valve, in particular to an extended operating device for an underwater ball valve used to raise the operating position. It belongs to the field of offshore oil engineering. Background technique [0002] Subsea valve refers to the general term for all valves used in underwater pipelines. At present, underwater valves are mainly used in the exploitation of offshore oil and natural gas. The applied valves mainly include: ball valves, gate valves, check valves, control valves, etc. The operation methods include: diver operation, underwater robot operation, hydraulic control operation, etc. . Due to its special use environment, the installation of underwater valves is different from that on land. Therefore, underwater valves are mostly installed underwater with integrated devices such as manifolds. [0003] At present, many integrated devices used in offshore oil production include: terminal control manifold, subsea...

AI Technical Summary

Problems solved by technology

[0005] (1) Since the design dimensions of the underwater equipment are not uniform in height, it brings great changes to the operation

[0006] (2) Since the switch position indication of the underwater ball valve is generally located on the gear box, and the indicating device is small, and because the seabed environment is complex and changeable, the switch position indication of the underwater ball valve is likely to lose its effect, Bring certain safety hazards to underwater production equipment

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