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A long-term stainless steel pipe sealing joint

A stainless steel pipe and sealing joint technology, applied in the field of pipe joints, can solve the problems of low installation efficiency, easy cracking and aging, and high maintenance frequency, and achieve the effect of protecting from damage, prolonging sealing aging, and improving sealing effect.

Active Publication Date: 2021-10-15
南通市正中钢管有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, the connection between the stainless steel pipe and the pipe joint is generally reinforced and sealed by a pipe collar, and then the surface is coated with sealant to improve the sealing of the joint of the stainless steel pipe. However, this method is complex in operation and low in installation efficiency. , on the other hand, the inner gasket used for sealing is always in a state of being squeezed, causing it to crack and age easily. In this case, the internal fluid hydraulic pressure is small, and its effective sealing time is relatively short, resulting in later Prone to water seepage, high maintenance frequency

Method used

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  • A long-term stainless steel pipe sealing joint
  • A long-term stainless steel pipe sealing joint
  • A long-term stainless steel pipe sealing joint

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Experimental program
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Effect test

Embodiment 1

[0049] see Figure 1-2 , a long-term stainless steel pipe sealing joint, including a joint body 1, the center of the joint body 1 presents an inwardly convex structure, and an inner ring 2 is fixedly connected to the protrusion on the inner wall of the joint body 1, and the inner ring 2 has two left and right sides. The outer end is inserted with a pre-sealed undulating pipe 3, the upper end of the joint body 1 is drilled with a liquid injection port 4, and both sides of the protrusion on the inner wall of the joint body 1 are provided with a pre-storage ring groove 5, and the pre-storage ring groove 5 is excavated in the joint body 1 The inner wall, and the cross-section of the pre-storage ring groove 5 is a trapezoidal structure. During installation, when guided by a magnet, the pre-storage ring groove 5 provides a certain accommodation space for the broken pre-breaking magnetic rod, so that it is not easy to affect the movement of the stainless steel pipe to the joint body 1...

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Abstract

The invention discloses a long-acting stainless steel pipe sealing joint, which belongs to the field of pipe joints. It is a long-acting stainless steel pipe sealing joint. Through the setting of pre-sealed undulating pipes, during installation, the extrusion effect on the end of the stainless steel pipe Next, the pre-breaking magnetic rod is broken, the sealant in the overflow ring is released, and it overflows quickly, and the steel pipe is rotated to disperse evenly, thereby forming a layer of sealing barrier in the stainless steel pipe, and then through the liquid injected into the liquid injection port The rubber liquid, after solidification, forms a sealing layer that is integrated with the joint body between the end of the stainless steel pipe and the joint body, and becomes another layer of sealing barrier that is not extruded by the stainless steel pipe or subjected to little force. Compared with the existing technology, it significantly prolongs the sealing time and reduces the maintenance frequency. In addition, when in use, the undulating structure of the pre-sealed undulating tube can buffer the hydraulic pressure to a certain extent, improve the stability of the hydraulic pressure at the joint, and reduce the impact of the hydraulic pressure on the sealing layer. Intensity of influence.

Description

technical field [0001] The invention relates to the field of pipe joints, in particular to a long-lasting stainless steel pipe sealing joint. Background technique [0002] Stainless steel pipe is a hollow long round steel, mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical structural components. [0003] In the prior art, the connection between the stainless steel pipe and the pipe joint is generally reinforced and sealed by a pipe collar, and then the surface is coated with sealant to improve the sealing of the joint of the stainless steel pipe. However, this method is complex in operation and low in installation efficiency. , on the other hand, the inner gasket used for sealing is always in a state of being squeezed, causing it to crack and age easily. In this case, the internal fluid hydraulic pressure is small, and its effective sealing time is relatively short, resulting in l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L13/10F16L13/11F16L55/02
CPCF16L13/103F16L13/116F16L55/02
Inventor 王正春
Owner 南通市正中钢管有限公司
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