Hot-melting and mechanical extrusion type flexible pipe joint
A flexible pipe and extrusion technology, which is applied in the direction of pipes/pipe joints/fittings, mechanical equipment, hose connection devices, etc., can solve the problems of unsatisfactory sealing performance, difficulties in size design and processing, difficulties in the operation of pipes and joints, etc. problem, achieve the effect of reducing the cost of oil extraction, preventing shedding, and improving the tensile and compressive capacity
Pending Publication Date: 2021-01-05
CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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Problems solved by technology
[0003] However, most of the flexible pipe joints currently used are rigid connections, the sealing performance cannot meet the requirements, the size design and processing are difficult, the operation is difficult when connecting pipes and joints, the connection stability is poor, and the long-term use of tensile and compressive properties is difficult. fading, falling off
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[0040] In order to solve the shortcomings of insufficient pressure bearing of hot-melt connection and poor sealing of mechanical connection, provide a better tensile and compression-resistant structure, and improve the sealing performance of flexible pipe joints, in the embodiment of the present invention, a hot-melt mechanical extrusion type flexible pipe joint is provided. pipe fittings. It realizes the connection of flexible pipe joints and flexible pipes through hot-melt connection, and at the same time adopts mechanical connection to extrude and assemble the bonded pipes to prevent falling off and seal. During the joint assembly process, the hot-melt inner joint and the flexible pipe are welded together by the electric fusion method, and then the outer sleeve of the joint and the inner core of the joint are tightened by threads to achieve the connection and connection by extruding the hot-melt inner joint. Sealing effect.
[0041] Such as figure 1 As shown, the hot-melt...
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The invention provides a hot-melting and mechanical extrusion type flexible pipe joint, and belongs to the technical field of oil extraction pipeline joints. The hot-melting and mechanical extrusion type flexible pipe joint comprises a hollow joint inner core and a hot-melting inner joint, wherein one end of the hollow joint inner core is used for being sleeved by a flexible pipe; the hot-meltinginner joint is used for being sleeved on the flexible pipe and sleeved on the outer part of one end of the joint inner core; a joint outer sleeve is arranged on the outer part of the hot-melting innerjoint in a sleeving manner and is detachably connected with the other end of the joint inner core, so that the flexible pipe and the hot-melting inner joint are positioned between the outer wall of the joint inner core and the inner wall of the joint outer sleeve; and the hot-melting inner joint is heated and can be in fusion joint with the flexible pipe, and the hot-melting inner joint subjectedto fusion jointing and the flexible pipe can be extruded between the outer wall of the joint inner core and the inner wall of the joint outer sleeve. According to the hot-melting and mechanical extrusion type flexible pipe joint disclosed by the invention, the hot-melting inner joint is in fusion joint with the flexible pipe, the pre-mounted joint outer sleeve is shifted to the joint inner core and is in threaded connection with the joint inner core, and the flexible pipe and the hot-melting inner joint are pressed tightly, so that the tensile strength and the compression resistance of hot-melting connection and the connection sealing property can be improved.
Description
technical field [0001] The invention relates to the technical field of oil exploration pipeline joints, in particular to a hot-melt mechanical extrusion type flexible pipe joint. Background technique [0002] At present, more and more oil and gas mining is mainly based on flexible pipelines. The distance between oil and gas and the ground or sea level is hundreds of meters or even thousands of meters. The joints are very important to the whole project. [0003] However, most of the flexible pipe joints currently used are rigid connections, the sealing performance cannot meet the requirements, the size design and processing are difficult, the operation is difficult when connecting pipes and joints, the connection stability is poor, and the long-term use of tensile and compressive properties is difficult. Fades, easy to fall off. Contents of the invention [0004] The purpose of the present invention is to provide a hot-melt mechanical extrusion flexible pipe joint with st...
Claims
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IPC IPC(8): F16L33/34
CPCF16L33/34
Inventor 时晨曲金枝王森包兴先王晓欣
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)