Driving mechanism achieving quick switching between hydraulic driving and manual driving and used for fracturing plate valve

Abstract

A driving mechanism achieving the quick switching between hydraulic driving and manual driving and used for a fracturing plate valve comprises a hydraulic driving component and a manual driving component, wherein in the hydraulic driving component, the two ends of a hydraulic cylinder barrel, one side of a support cylinder cover and one side of a bonnet cylinder cover are connected together through pipe connectors, bent pipes and a stop valve; in the manual driving component, two sliding sleeves, i.e. an upper sliding sleeve and a lower sliding sleeve which are engaged with each other oppositely and can rotate relatively, are arranged at the upper ends of a rotary support frame and a hand wheel, and an elastic bolt fixed to the lower edge of the upper sliding sleeve is matched with bolt holes formed in the upper edge of the lower sliding sleeve to control the axial position of a ball nut which moves up and down in center holes of the upper sliding sleeve and the lower sliding sleeve, so as to achieve the quick switching between the two different driving methods. The fracturing plate valve using the dual driving methods, including hydraulic driving and manual driving, is enabled tomeet the field operation requirements of a user; the loss and waste, caused by a dual-valve configuration for the fracturing plate valve which uses the two different driving methods, are avoided; andobvious economic and social benefits are achieved.

Description

technical field [0001] The invention relates to oil and natural gas drilling equipment and the research and development of a driving mechanism for a fracturing flat valve. Background technique [0002] In oil and natural gas drilling equipment at home and abroad, most of the fracturing plate valves used are driven by a single method; namely: hydraulic drive or manual handwheel drive. During the fracturing operation, the ultra-high working pressure and the sand-containing fracturing fluid will cause great damage to the equipment used. Once the equipment leaks, the jet of the fracturing fluid will also threaten the personal safety around the equipment; therefore, now Some fracturing equipment mostly use hydraulic remote control as the main control method, supplemented by short-distance human control. However, hydraulic remote drive requires complex auxiliary systems and related preconditions; if there is a problem with the auxiliary system or the lack of preconditions, the en...

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Problems solved by technology

However, hydraulic remote drive requires complex auxiliary systems and related preconditions; if there is a problem with the auxiliary system or the lack of preconditions, the entire fracturing flat valve and complete fracturing equipment will not be able to operate; therefore, human-driven Valves are also indispensable

Most of the existing complete sets of fracturing equipment use two kinds of fracturing valves with different driving methods "dual valve configuration": that is, a human-driven valve is connected in series on one side of the hydraulically driven valve, which is used together as a safety backup and Wear and tear; this not only increases the volume, weight and economic burden of the user of the fracturing equipment, but also wastes a lot of precious natural resources

For this reason, a very small number of hydraulic and manpower dual-drive fracturing flat valves came into being; however, the design of the driving mechanism of the first dual-drive valve is not perfect, mainly because when the two different drive methods are converted to each other, The process is cumbersome, time-consuming and labor-intensive, and it is difficult to adapt to the on-site operation requirements against time and seconds; while the double drive method of other types of valves is not specially designed for fracturing flat valves. The strength of parts and components cannot meet the special work requirements such as ultra-high pressure and large torque during fracturing operations

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