A high-pressure hose assembly for oil drilling system

Abstract

The invention discloses a high-pressure hose assembly for a petroleum drilling system. A bonding transition layer, an inner protective layer and a reinforced layer are successively connected to the surface of an inner core of a rubber tube to form a tube body; the surface of an inner hole of a sleeve sleeves the surfaces of the reinforced layer in a spacing manner to form an annular curing cavity; an inner hole of a fastening cap sleeve the outer end surface of a joint, and an excircle at the outer end relative to the sleeve is detachably and movably connected and locked to drive the inner end surface of the joint and a seal ring connected to the inner end face so as to extrude, seal and fasten a flanging rubber layer at the outer end of the inner core of the rubber tube and the external faces of the sleeve and the tube body; the joint is connected to the inner core of the rubber tube in equal pore diameter; a curing layer is connected to the annular curing cavity to cure, connect and seal the surface of the inner hole of the sleeve and the surface of the reinforced layer. Failures, such as leakage of a transport medium, in a connecting and sealing part of the tube body due to loosing and detachment are eliminated, so that the service life is prolonged. The joint is convenient and rapid to detach and replace, the connector is not damaged, and the using cost is low. The pore diameter of the tube body is increased, and the conveying flow is improved.

Description

technical field [0001] The invention relates to a high-pressure rubber hose connection part; in particular, it relates to a high-pressure hose assembly used in an oil drilling system. Background technique [0002] With the development of human oil drilling technology to deeper formations and ocean bottoms, the demand for higher pressure on high-pressure hose assemblies and increasing the pore size of the pipe body to increase the flow rate of the conveying medium is becoming more and more urgent. At present, the high-pressure hose assembly of the oil drilling system usually adopts a buckle-type connection and sealing structure. Such as the Chinese utility model patent, announcement number: CN203656416U discloses the buckle-type hydraulic rubber hose joint with high pulse performance; The end is inserted into the core tube, and a sleeve is connected to the outer ring of the rubber hose. Through mechanical cold extrusion and shrinkage of the outer diameter of the sleeve, the ...

Images