CN217272494U

CN217272494U - Pipeline with interlayer sealing structure

Info

Publication number: CN217272494U
Application number: CN202123351172.8U
Authority: CN
Inventors: 杜清; 江成文; 刘小勇; 沈婧
Original assignee: Chengdu Common Tube Group Co ltd
Current assignee: Chengdu Common Tube Group Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-23
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a pipeline with seal structure between layer, relates to pipeline technical field, and the technical scheme who adopts includes inlayer pipe, is in with the coupling and the setting of inlayer union coupling the enhancement layer of inlayer pipe and coupling surface, the coupling both ends all are provided with annular groove, annular groove be provided with annular groove complex sealing washer, still be provided with between sealing washer and the enhancement layer be used for with the sealing washer compresses tightly the beaded finish in annular groove, the beaded finish with the surface interference fit of sealing washer. The utility model discloses at the inlayer pipe both ends installation sealing washer of coupling to the position of sealing washer is fixed to the annular groove, compresses tightly the sealing washer with the beaded finish, makes to form static seal between beaded finish, sealing washer and the inlayer pipe, thereby prevents that liquid from permeating the pipe connector mouth and oozing to other pipeline sections, with the range control of leaking between the layer on the pipeline section that the leakage takes place.

Description

Pipeline with interlayer sealing structure

Technical Field

The utility model relates to the technical field of pipelines, especially, relate to a pipeline with seal structure between layer.

Background

The inner layers of pipes are connected into a pipeline through pipe joints, and the outer surface of the pipeline is wound with the reinforcing layer 3 to form the multilayer composite pipeline. If a certain inner layer pipe 1 leaks or the joint of the inner layer pipe 1 and the pipe joint 2 leaks, a liquid medium can spread along interlayer gaps among the inner layer pipe 1, the pipe joint 2 and the reinforcing layer 3 to cause an interlayer leakage phenomenon, the structural strength and the sealing performance of the whole pipeline are affected, and delamination and external leakage of the whole pipeline can occur in severe cases. However, the current pipe joint has no structure for preventing the interlayer leakage.

SUMMERY OF THE UTILITY MODEL

To the unable problem that prevents the interlaminar leakage of pipe joint among the prior art scheme, the utility model provides a pipeline with seal structure between layer.

The utility model provides a following technical scheme: the utility model provides a pipeline with seal structure between layer, includes inlayer pipe, the coupling of being connected with inlayer pipe and sets up the enhancement layer of inlayer pipe and coupling surface, the coupling both ends all are provided with annular groove, annular groove be provided with annular groove complex sealing washer, still be provided with between sealing washer and the enhancement layer be used for with the sealing washer compresses tightly the beaded finish in annular groove, the beaded finish with the surface interference fit of sealing washer.

Preferably, the inner pipe and the pipe joint are both metal pipes.

Preferably, the sealing ring is a rubber sealing ring.

Preferably, the reinforcement ring and the reinforcement layer are both glass fiber reinforced plastic or carbon fiber reinforced plastic.

The utility model has the advantages that: sealing rings are arranged at two ends of an inner layer pipe of the pipe joint, the positions of the sealing rings are fixed by annular grooves, the sealing rings are compressed by the reinforcing rings, and static sealing is formed among the reinforcing rings, the sealing rings and the inner layer pipe, so that liquid is prevented from permeating the pipe joint to other pipe sections, and the range of interlayer leakage is controlled on the pipe section where leakage occurs.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Reference numerals: 1-inner layer pipe, 2-pipe joint, 3-reinforcing layer, 4-annular groove, 5-sealing ring and 6-reinforcing ring.

Detailed Description

The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the embodiments after studying the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model provides a pipeline with interlayer seal structure as shown in fig. 1-2, coupling 2 and the setting of being connected including inlayer pipe 1, with inlayer pipe 1 are in the enhancement layer 3 of inlayer pipe 1 and coupling 2 surface, 2 both ends of coupling all are provided with annular groove 4, annular groove 4 be provided with annular groove 4 complex sealing washer 5, still be provided with between sealing washer 5 and the enhancement layer 3 and be used for with sealing washer 5 compresses tightly beaded finish 6 in annular groove, beaded finish 6 with sealing washer 5's surface interference fit.

The annular groove is used for fixing the position of the sealing ring; the inner surface of the sealing ring is matched with the annular groove, so that the annular groove is completely filled by the sealing ring, and gaps are reduced as much as possible; the outer surface of the sealing ring is in interference fit with the inner surface of the reinforcing ring, so that the sealing ring is tightly pressed on the annular groove by the reinforcing ring, and the sealing performance is improved. The reinforcing layer can be wound on the outer surfaces of the inner layer pipe and the pipe joint through a fixed-length winding process. The annular groove, the sealing ring and the reinforcing ring form an interlayer sealing structure for preventing liquid from spreading and infiltrating through a gap between the pipe joint and the reinforcing layer, and the two ends of the pipe joint are provided with the interlayer sealing structures, so that the interlayer leakage range is controlled in an inner layer pipe with leakage, and the whole pipeline is prevented from being influenced by interlayer leakage.

Preferably, the inner pipe 1 and the pipe joint 2 are both metal pipes, generally stainless steel pipes, and can be connected by welding.

Preferably, the seal ring 5 is a rubber seal ring.

Preferably, the reinforcement ring 6 and the reinforcement layer 3 are both glass fiber reinforced plastic or carbon fiber reinforced plastic.

The foregoing is directed to one or more embodiments of the present invention, which are described in some detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a pipeline with seal structure between layer, includes inlayer pipe (1), coupling (2) of being connected with inlayer pipe (1) and sets up in enhancement layer (3) of inlayer pipe (1) and coupling (2) surface, its characterized in that: the utility model discloses a sealing device, including coupling (2), annular groove (4), sealing washer (5), still be provided with between sealing washer (5) and enhancement layer (3) be used for with sealing washer (5) compress tightly beaded finish (6) in the annular groove, beaded finish (6) with the surface interference fit of sealing washer (5).

2. A pipe having an interlayer sealing structure according to claim 1, wherein: the inner layer pipe (1) and the pipe joint (2) are both metal pipes.

3. A pipe having an interlayer sealing structure according to claim 1, wherein: the sealing ring (5) is a rubber sealing ring.

4. A pipe having an interlayer sealing structure according to claim 1, wherein: the reinforcing ring (6) and the reinforcing layer (3) are both made of glass fiber reinforced plastics or carbon fiber reinforced plastics.