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Double-lumen tube connector, preparation thereof and using method

A technology for connection devices and lumen tubes, which is applied in the field of double-cavity tube connection devices, can solve the problems that pipe joints cannot be sealed by pipelines, and cannot meet the functions of sealing, fastening and sealing, and achieve simple structure and improved torsion resistance Effect

Active Publication Date: 2017-05-31
GRIKIN ADVANCED MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pipe joint cannot be used for the sealing of pipelines, and the existing structural design cannot meet the integrated design of sealing, fastening and sealing functions

Method used

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  • Double-lumen tube connector, preparation thereof and using method
  • Double-lumen tube connector, preparation thereof and using method
  • Double-lumen tube connector, preparation thereof and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Superelastic double-lumen tube connection device and method for making and using the same

[0031] The structure of the memory alloy double-cavity tube connection device is mainly composed of an outer ring 1, an inner ring 2, and a bottom ring 3, which is an integral structure, see the attached figure 1 a-b; Internal unsupported rib structure. The outer ring 1 has memory performance, can produce diameter shrinkage, and produces ring fastening to the connected pipe 7, and the inner ring 2 has superelasticity, and relies on the elastic support contact of the inner ring 2 pipe wall to realize the fastening contact connection and realize Pipeline connection and blockage to improve airtightness.

[0032] The memory alloy of the double-cavity tube connection device adopts NiTi alloy, and the outer ring 1 of the double-cavity tube connection device is expanded from a diameter of 20mm to 10% in advance in a martensitic state, and the plastic deformation will increase the marte...

Embodiment 2

[0036] Superelastic double-lumen tube connection device with support ribs and its preparation and use method

[0037] On the basis of the integral structure of the NiTi alloy double-lumen tube connection device in Example 1, there is an axial support rib 4 inside the outer ring 1 of the double-lumen tube connection device, image 3 It is a schematic diagram of the axial support rib structure of a double-lumen tube connection device. Or there is a circumferential support rib 5 on the inner side of the outer ring 1 of the double-lumen tube connection device, Figure 4 It is a schematic diagram of the structure of a double-lumen tube connection device in the circumferential support rib. The structural design with axial support rib 4 can further improve the impact resistance and sealing performance, and the choice of the structure with circumferential support rib 5 can further improve the sealing performance and pull-off resistance.

Embodiment 3

[0039] Bilateral double-lumen tube connection device and its preparation and use method

[0040] In order to achieve the purpose of double-sided fastening connection, choose Figure 5 The double-lumen tubing connection device with double-sided connection structure is shown.

[0041]The memory alloy material of the double-sided double-lumen tube connecting device is NiTi alloy, and the inner diameter of the outer ring 1 of the double-lumen tube connecting device on one side is expanded by 8% from a diameter of 15 mm in advance in a martensitic state, and then the other The inner diameter of the outer ring 1 of the side double-lumen tube connection device is expanded by 8% from a diameter of 15mm, and the phase transition temperature after the expansion is 80°C; while the inner ring 2 is expanded with a supporting core rod to maintain the original inner diameter.

[0042] The outer ring 1 has an inner diameter of 16.2 mm and has memory properties. When heated to 120° C., exceed...

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Abstract

The invention belongs to the technical field of connection and plugging of a memory alloy pipeline, and particularly relates to a double-lumen tube connector, a preparation thereof and a using method. The double-lumen tube connector comprises an outer ring, an inner ring, a middle connecting pillar body and a bottom circle; the middle connecting pillar body is connected with the outer ring and the inner ring at both ends; the outer ring and the inner ring are rib structure or rib-free structure. The double-lumen tube connector combines the advantages of the tube joint and the plugging device, and applies the heating fastening and contraction of the outer ring to generate sustainable fastening of the connected tube; the inner ring carries out the elastic support of the inside diameter of the connected tube, and memory recovery support, so as to realize the pipeline connection and blocking functions, and solve the problems that the existed plugging device is easy to leak after connecting. Meanwhile, the two-side double-lumen tube design is applied to the pipeline connection; the inside of the outer ring and the outside of the inner ring are provided with axial supporting ribs or the peripheral supporting ribs; through the design of the supporting rib, the twisting resistance, fastening connection, sealing and pugging performance can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of memory alloy pipeline connection and plugging, and in particular relates to a double-cavity tube connection device and its preparation and use methods. Background technique [0002] Memory alloys are mainly used for pipeline plugging and connection, mainly packers and pipe joints, and they are suitable for different occasions. [0003] Packers are widely used in oil production engineering as a sealing guarantee measure for layered oil production. The packers of traditional removable packers all use rubber as the sealing material. It is easy to age under high temperature and high pressure operation, which affects the service life of the packer; and the unsealing process is relatively complicated. The superelastic TiNi alloy can be used as a packer, relying on the relative movement between the rigid metal cone and the TiNi alloy packer, and the cone enters the packer, causing the TiNi alloy packer to expa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/115
CPCF16L55/115
Inventor 冯昭伟王江波袁志山朱明王越贺昕李君涛李勇军熊晓东王兴权
Owner GRIKIN ADVANCED MATERIALS
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