Ultrahigh pressure metal hose with external strengthened layer

Abstract

The invention discloses an ultrahigh pressure metal hose with an external strengthened layer. The ultrahigh pressure metal hose comprises a flange, a connecting pipe, a corrugated pipe, steel wires, metal mesh sleeves and a hose. The corrugated pipe is sequentially in sealed connection with the connecting pipe and the flange. The steel wire is wound into the trough of the corrugated pipe until leveling with the crest, the metal mesh sleeves are axially sleeved along all crests of the corrugated pipe, at least one layer of steel wire and at least one layer of metal mesh sleeve are alternatively arranged on the layer of metal mesh sleeve, the steel wire is wound to form the circumferential strengthened layer of the corrugated pipe, and the metal mesh sleeve forms the axial strengthened layer of the corrugated pipe. In order to realize integrated connection, the end parts of the metal mesh sleeve and the steel wire uniformly extend to the outer wall of the middle section of the connecting pipe, are gathered and bound up with a jacket and then are fixedly connected uniformly. According to the invention, the strengthened layer is additionally arranged on a conventional corrugated pipe, the structure is simple, multiplication of bearing capability and temperature resistance can be realized, and the requirements of working conditions of ultrahigh pressure and extreme temperature resistance can be met. In addition, the strengthened layers are all of a flexible structure, thus having little influence on the flexible compensation capability of the corrugated pipe.

Description

technical field [0001] The invention relates to a high-pressure flexible pipe fitting, in particular, the invention relates to a metal hose, especially a metal hose bearing ultra-high pressure. Background technique [0002] In some important equipment in industries such as aerospace, petrochemical and offshore oil and gas drilling, it is necessary to configure hoses that can withstand high pressure and work normally under extreme temperature conditions, especially when the working pressure is higher than 10MPa and the medium temperature is -196℃~ 200°C hose. The metal hose made under the existing technical conditions has a thin wall and good flexibility. Although it can withstand extreme temperatures, it cannot withstand ultra-high pressure. Hose made of rubber or organic synthetic materials can withstand high pressure under normal temperature conditions, but its pressure resistance will plummet under extreme temperature conditions. At present, there is also a precedent fo...

AI Technical Summary

Problems solved by technology

Although the universal joint can change direction, it cannot completely replace the hose. The biggest problem is insufficient flexibility, poor radial displacement flexibility, no ability to bear axial tension, and cannot meet the compensation requirements of supporting equipment.

Generally speaking, the structures of the hoses or universal joints manufactured by the prior art are not reasonable enough, and the functions are not comprehensive enough to meet the actual needs of the project.

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