Double-sealing-type socket press-fit pipe fitting and an assembling method thereof.

A technology for pipe fittings and pipe materials, which is applied in the field of double-sealed socket press-fit pipe fittings and assembly, which can solve the problems of easy generation of cavities and pores, unsaturated pressure pipe glue, and inability to achieve sealing, so as to reduce the amount of glue poured, High adhesiveness and the effect of preventing glue overflow

Pending Publication Date: 2020-05-22
金品冠科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) A large amount of anaerobic adhesive will be used during the installation process, resulting in glue overflow during installation
[0005] (2) After the glue overflows, the glue inside the pressing tube is not saturated, and it is easy to produce cavities and pores, forming leaks
[0006] (3) At the same time, the anaerobic adhesive has a certain degree of brittleness after drying, and there will be a certain rebound when mechanically pressing the stainless steel pipe fittings, which cannot achieve a complete seal, and is insufficient for high and low temperature areas and high pressure.

Method used

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  • Double-sealing-type socket press-fit pipe fitting and an assembling method thereof.
  • Double-sealing-type socket press-fit pipe fitting and an assembling method thereof.
  • Double-sealing-type socket press-fit pipe fitting and an assembling method thereof.

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: see Figure 1-Figure 4 , a double-sealed socket press-fit pipe fitting, including a pipe 1 made of stainless steel and a socket press-fit welded joint 6, the socket press-fit welded joint 6 includes an inner pipe body 3 and an outer pipe body 2, two They are arranged in parallel, one end is welded as the welding end, and the other end is used as the open end for the pipe 1 to be inserted into. part, the outer wall of the insertion part is sleeved with a ring of sealing tape 4, one end of the sealing tape 4 is flush with the open end, the other end is close to the welding end and the gap between the welding end and the welding end is filled with an anaerobic adhesive layer 7, the outer Corresponding to the sealing tape 4 on the pipe body 2, there is an annular groove 5 for the sealing tape 4 to be embedded in;

[0029] The pipe fittings and the socket compression welding joint 6 are tightly connected by the ring pressure of the hydraulic tool, and the two ...

Embodiment 2

[0038] Example 2: see Figure 1-Figure 4 , the sealing tape 4 is made of fluorine rubber, silicon rubber or nitrile rubber, with a thickness of 0.6mm-3.5mm and a width of 20-80mm, and the anaerobic adhesive standard is HG / T3737. All the other are identical with embodiment 1.

[0039] In this embodiment, on the existing clamping pipeline, increase the use of widened special sealing tape 4, such as about 70 mm, and the material is fluorosilicone rubber that is resistant to high and low temperatures and has a long service life. For more than 20 years, it can ensure the quality of pipeline engineering installation under extreme conditions such as high and low temperature areas and high pressure environments.

Embodiment 3

[0040] Embodiment 3: see Figure 1-Figure 4 In the present embodiment, the thickness of the sealing tape 4 is related to the diameter of the pipe 1. For example, the pipe 1 with a diameter of 15mm can use the sealing tape 4 with a thickness of 0.6mm, and the pipe 1 with a diameter of 400mm can use the sealing tape 4 with a thickness of 3.5mm. All the other are identical with embodiment 1.

[0041] The invention strengthens the sealing effect of the joints of the pipeline engineering, fills the existence of some small gaps caused by the springback when the stainless steel is pressed, and can adapt to the pipeline engineering in various regional environments. Through the test verification, this scheme is superior to the original technology. It can effectively reduce the overflow of anaerobic adhesives and reduce the amount of anaerobic adhesives, so that the sealing performance of pipeline engineering is stronger in high and low temperature climates and high pressure environment...

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Abstract

The invention discloses a double-sealing-type socket press-fit pipe fitting and an assembling method thereof. The double-sealing-type socket press-fit pipe fitting comprises a pipe material and a socket press-fit welding head, the pipe material is inserted from the open end to the welding end, after insertion, the part located in the socket press-fit welding head is an insertion part, a circle ofsealing tape are connected to the outer wall of the insertion part in a sleeving mode, one end of the sealing tape is parallel and level to the open end, the other end of the sealing tape is close tothe welding end, the gap between the other end of the sealing tape and the welding end is filled with an anaerobic adhesive layer, and an annular groove is formed in the position, corresponding to thesealing tape, of an outer pipe body; the pipe fitting and the socket press-fit welding head are subjected to confining pressure through a hydraulic tool and are connected with each other tightly, andtwo confining pressure positions of confining pressure are separately located on the sealing tape and the anaerobic adhesive layer. According to the double-sealing-type socket press-fit pipe fitting,the structure and assembling method of the socket press-fit pipe fitting are improved, the amount of adhesive filling is effectively reduced, and the phenomenon of adhesive overflowing is avoided; and meanwhile, the installation cost is greatly saved, the sealing performance can be increased, and the installation quality of pipeline engineering can be ensured under extreme conditions such as high-and-low temperature area and high pressure environment.

Description

technical field [0001] The invention relates to a pipe fitting and an assembling method, in particular to a double-sealed socket pressing pipe fitting and an assembling method. Background technique [0002] The socket and press-fit connection pipe fittings realize the connection function, turning function, branch function, conversion function and so on. This is a new type of pipe fitting with double-layer sockets, which is mainly used in pipeline engineering in high-temperature and high-pressure areas. Oxygen sealant, commonly known as "liquid raw material belt", is inserted into the double-layer socket of the pipe fitting, and the pipe and the pipe fitting are pressed and connected together with a special pressing tool, and the seal between the pipe and the pipe fitting is hermetically filled. The glue is cured and sealed in the absence of oxygen. [0003] The disadvantages of this technique are: [0004] (1) A large amount of anaerobic adhesive will be used during the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L13/11F16L13/16
CPCF16L13/11F16L13/16
Inventor 汪仕斌
Owner 金品冠科技集团有限公司
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