CN218031886U

CN218031886U - Anticorrosive connected node of underground water pipe pipeline component

Info

Publication number: CN218031886U
Application number: CN202222754094.4U
Authority: CN
Inventors: 杨淘; 杜心舒; 靳凯驿
Original assignee: Shenyang Jianzhu University
Current assignee: Shenyang Jianzhu University
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2022-12-13
Anticipated expiration: 2032-10-19

Abstract

The utility model aims at providing an anticorrosive connected node of underground water pipe pipeline component, the inboard built-in welding of pipe A and pipe B welding point has the inner joint pipe, the inside wall of inner joint pipe is scribbled and is brushed there is interior anti-corrosion coating, the junction lateral wall of pipe A and pipe B is scribbled and is brushed there is outer anti-corrosion coating the lateral surface of outer anti-corrosion coating closely wraps up there is the pyrocondensation area both sides seam and horizontal overlap joint gap department cover has H shape banding pyrocondensation area. The utility model relates to an anticorrosive technical field of underground pipe, this anticorrosive connected node of underground water pipe pipeline component uses inner union coupling and two-layer anticorrosive coating to shelter from and cover the connected node of two pipelines in inlayer department. The outer anticorrosion coating and the thermal shrinkage tape are used at the outer layer to cover the connecting joint of the two pipelines, the H-shaped edge sealing thermal shrinkage tape is used to cover the edge generated by the thermal shrinkage tape, and the inner part and the outer part are subjected to protection treatment by holding the welding points of the pipe A and the pipe B.

Description

Anticorrosive connected node of underground water pipe pipeline component

Technical Field

The utility model relates to an underground pipe is anticorrosive (also called "ground pipe laying is anticorrosive") technical field, specifically is an anticorrosive connected node of underground water pipe pipeline component.

Background

Prior patent literature

Patent document 1: the application date is: 21/6/2022, publication (bulletin) number: CN114933835A;

patent document 2: the application date is: in 2013, month 5 and 28 days, the publication (announcement) numbers are: CN103244766A.

First, the standard method of the existing underground steel pipe anticorrosion treatment is to adopt three oil cloths and two cloth cloths. Brushing asphalt paint on one side, brushing the asphalt paint on the pipeline after winding the glass fiber cloth, and brushing the asphalt paint on the pipeline after winding the glass fiber cloth. Mainly wrap up the pipe fitting through the pitch lacquer, and the glass silk cloth plays the problem that improves intensity and prevent that the pitch lacquer from dropping.

When the device is used, the welding position of the two pipelines is easy to corrode more than other parts of the steel pipe when the two pipelines are butted in the steel pipe applied to the underground pipeline, the reason is that programmed processing such as grinding and welding treatment is needed during welding, impurities on the pipe wall can be removed during grinding, an anti-corrosion coating is also removed, and if pinholes and cracks occur during welding, the part can be corroded preferentially. The prior art method is therefore to apply a coating treatment for corrosion protection.

In order to solve the problems, in the prior art, an optimized anticorrosive coating and optimized connection points are adopted to improve the corrosion resistance effect of the steel pipe.

As shown in patent document 1, in order to improve the effect of corrosion prevention, a painted asphalt paint is improved. The effect is to improve the adhesive force after use and make it not easy to fall off.

In addition, as shown in patent document 2, in order to solve the corrosion prevention problem of the welding point at the butt joint of the two pipelines, the sealing part is sealed by the connecting piece, the structure is limited to the material and the structure problem, for example, the sealing part is a conventional sealing part such as a rubber ring, is easy to oxidize and can leave a gap, is easy to corrode after being used for a long time, and then can lead to preferential corrosion at the joint, and the corrosion prevention effect cannot be achieved.

Therefore, it is necessary to provide a new corrosion-resistant structure for the welding point of two steel pipes to solve the problem of corrosion at the welding point.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an anticorrosive connected node of underground water pipe pipeline component has solved two current steel pipe welding point departments and has easily received the problem of corruption.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an anti-corrosion connecting joint of a pipeline component of an underground water pipe comprises a pipe A and a pipe B, wherein pipe openings of the pipe A and the pipe B are welded oppositely, and pipe body anti-corrosion layers are wrapped on the outer walls of the pipe A and the pipe B;

an inner connecting pipe is welded inside the welding point of the pipe A and the pipe B, and the welding points of the two sides of the inner connecting pipe and the pipe A and the pipe B are inner sealing points;

the outer side wall of the joint of the pipe A and the pipe B is coated with an outer anti-corrosion coating;

the outer side surface of the outer anti-corrosion coating is tightly wrapped with a heat-shrinkable belt, and seams at two sides of the heat-shrinkable belt and the position of a circumferentially closed transverse lap joint seam are covered with an H-shaped edge sealing heat-shrinkable belt.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, the inside wall of inner joint pipe is scribbled and is brushed interior anticorrosive coating.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, interior anticorrosive coating covers interior union coupling and interior sealing point and extends to both sides.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, interior anticorrosive coating is interior anticorrosive coating A and interior anticorrosive coating B of overlapping the brush in proper order.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, the edge of body anticorrosive coating has polished the hired hair layer, pyrocondensation area covers hired hair layer and closely bonds.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, H shape banding pyrocondensation area includes two annulars and integrated into one piece in the horizontal banding area between two annulars.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, two ring belts cover the seam of pyrocondensation area and body anticorrosive coating department respectively, horizontal lap joint gap after the horizontal sealing area covers pyrocondensation area axial closure.

The utility model discloses an anticorrosive connected node of underground water pipe pipeline component, it is preferred, the outer surface of pyrocondensation area is painted asphalt layer.

Advantageous effects

Through using the utility model provides a pair of anticorrosive connected node of underground water pipe pipeline component, this anticorrosive connected node of underground water pipe pipeline component adopt inside and outside dual anticorrosive treatment to wholly improve connected node's corrosion-resistant effect. An inner pipe and two layers of anti-corrosion coatings are used at the inner layer to shield and cover the connecting joint of the two pipes. Use outer anti-corrosion coating and pyrocondensation to bring in outer department and shelter from and cover the connected node of two pipelines to bring the edge that covers the pyrocondensation area and produce through H shape banding pyrocondensation, prevent that the gas from getting into pyrocondensation area department through the gap and leading to pyrocondensation area inefficacy, the rethread is applied paint the asphalt layer with a brush and is played outer protection. The inside and outside multiple extremely big butt pipe A and the protection of pipe B welding point department are held and are handled, avoid the node to receive the corruption for a long time, guarantee pipeline result of use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at L in FIG. 1;

FIG. 3 is a schematic view of the heat shrinkable band bonding structure of the heat shrinkable band of the present invention;

fig. 4 is a schematic view of the thermal shrinkage band structure of the present invention;

fig. 5 is a schematic view of the H-shaped edge sealing heat shrinkage band structure of the present invention.

Description of the symbols in the drawings

1. The pipe comprises a pipe A, a pipe B, a pipe body anticorrosive layer, a roughening layer, a H-shaped edge sealing and heat shrinking belt, a ring-shaped belt, a transverse sealing belt, a pipe body anticorrosive layer, a pipe roughening layer, an H-shaped edge sealing and heat shrinking belt, a pipe roughening layer, an annular belt, a transverse sealing belt, a pipe roughening layer, an inner sealing point, an outer anticorrosive coating layer, an inner anticorrosive coating layer A, a pipe roughening layer, an inner anticorrosive coating layer B, an inner anticorrosive coating layer 11, an inner pipe and a bitumen layer, wherein the pipe roughening layer is 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. As long as can exert the effect of the utility model, various changes can be made to the embodiment.

The following working principles, detailed connecting means thereof, and following main descriptions of the working principles and processes shall be referred to by those skilled in the art to connect the components in this case in sequence, and the specific connecting and operating sequence shall be described below.

Referring to fig. 1-5, the pipe member of the present embodiment is described, which is an anti-corrosion connection node of a pipe member of an underground sewer pipe, comprising a pipe A1 and a pipe B3, the pipe ends of which are welded to each other, and the outer walls of the pipe A1 and the pipe B3 are wrapped with a pipe body anti-corrosion layer 4.

An inner connecting pipe 11 is welded inside the welding point of the pipe A1 and the pipe B3, and the welding point of the two sides of the inner connecting pipe 11 and the pipe A1 and the pipe B3 is an inner sealing point 7;

during construction, the inner connecting pipe 11 is made of 304 steel rings, and the outer diameter of the inner connecting pipe is matched with the pipe A1 and the pipe B3. Firstly, the interface between the pipe A1 and the pipe B3 is subjected to rust removal and drying treatment. Then, a half portion of the inner joint pipe 11 is inserted into the joint of the pipe A1, and is welded to the pipe A1, and after the welding, the pipe B3 is fitted over the other half portion of the inner joint pipe 11, and the inner joint pipe 11 is welded to the pipe B3.

The inner side wall of the inner connecting pipe 11 is coated with an inner anti-corrosion coating, the inner anti-corrosion coating covers the inner connecting pipe 11 and the inner sealing point 7 and extends towards two sides, and the inner anti-corrosion coating is an inner anti-corrosion coating A9 and an inner anti-corrosion coating B10 which are sequentially coated in a brush-overlapping mode.

During painting, after the inner connecting pipe 11 is welded, the welding position and the inner wall of the inner connecting pipe 11 are cleaned, and the inner anticorrosive coating A9 is painted after the cleaning is finished. After the coating is shaped, the inner anti-corrosion coating B10 is coated outside the inner anti-corrosion coating A9, and bubbles generated by the inner anti-corrosion coating A9 and uneven coating are sealed. The inner connecting pipe 11 and the inner sealing points 7 formed by the welding points on the two sides form the connection and fixation in the pipe, and the double-layer anticorrosive coating performs sealing and anticorrosive treatment on the connecting points in the pipe.

The outer side of the joint of the pipe A1 and the pipe B3 is coated with an outer anticorrosive coating 8;

the edge of the pipe body anticorrosive coating 4 is polished with a roughening layer 5, the outer side surface of the outer anticorrosive coating 8 is tightly wrapped with a heat-shrinkable belt 2, the heat-shrinkable belt 2 covers the roughening layer 5 and is tightly bonded, and an H-shaped edge sealing heat-shrinkable belt 6,H-shaped edge sealing heat-shrinkable belt 6 covers joints at two sides of the heat-shrinkable belt 2 and transverse lap joints after circumferential closing comprises two annular belts 61 and a transverse sealing belt 62 integrally formed between the two annular belts.

The two annular belts 61 respectively cover the joints at the positions of the heat-shrinkable belt 2 and the pipe body anticorrosive layer 4, and the transverse sealing belt 62 covers the transverse lap joint seam of the heat-shrinkable belt 2 after annular closing.

The outer surface of the heat-shrinkable belt 2 is coated with an asphalt layer 12, and the coating thickness of the asphalt layer 12 is preferably smoothly connected with the anti-corrosion layers 4 of the pipe bodies on the two sides.

And (3) welding the outer connection part of the pipe A1 and the pipe B3, reserving a welding gap of 5-10 mm when welding points are opposite, performing welding in the welding gap, and closing the gap after welding to completely weld and fix the pipe A1 and the pipe B3 with the inner connecting pipe 11 and form an outer sealing point.

The edge of the pipe body anticorrosive coating 4 is firstly polished to form a roughening layer 5, and then the joints of the pipe A1 and the pipe B3 are cleaned. Apply paint outer anti-corrosion coating 8 with a brush in the junction outside of pipe A1 and pipe B3, treat the drying back, toast 2 inner walls in pyrocondensation area, encircle to wrap up on outer anti-corrosion coating 8, and the both ends overlap joint of pyrocondensation area 2, both sides glue and glue on sanding layer 5, use the gyro wheel to press pyrocondensation area 2, extrude the bubble. Taking out the H-shaped edge sealing heat-shrinkable belt 6, baking the inner walls of the annular belt 61 and the transverse sealing belt 62, covering the transverse sealing belt 62 at the transverse lap joints of the two ends of the heat-shrinkable belt 2 after circumferential closing, covering the annular belt 61 on the joint of the heat-shrinkable belt 2 and the pipe body anticorrosive layer 4 and closing the two ends of the annular belt 61, pressing the H-shaped edge sealing heat-shrinkable belt 6 by using a roller, and extruding bubbles. And finally, brushing the asphalt layer 12, standing and then drying to form an outer protective shell.

Although embodiments of the present invention and its advantages have been described in detail, it should be understood that various changes, modifications and substitutions may be made therein by one skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the claims appended hereto are intended to encompass within their scope such processes, apparatus, manufacturers, compositions of matter, means, methods, or steps.

Claims

1. The utility model provides an anticorrosive connected node of underground water pipe pipeline component, includes that the mouth of pipe is relative welded pipe A (1) and pipe B (3), the outer wall of pipe A (1) and pipe B (3) has all wrapped up body anticorrosive coating (4), its characterized in that:

an inner connecting pipe (11) is welded inside the welding point of the pipe A (1) and the pipe B (3), and the welding points of the two sides of the inner connecting pipe (11) and the pipe A (1) and the pipe B (3) are inner sealing points (7);

the outer side wall of the joint of the pipe A (1) and the pipe B (3) is coated with an outer anti-corrosion coating (8);

the outer side surface of the outer anti-corrosion coating (8) is tightly wrapped with a heat-shrinkable belt (2), and seams at two sides of the heat-shrinkable belt (2) and a transverse lap joint seam after circumferential closing are covered with an H-shaped edge sealing heat-shrinkable belt (6).

2. An anticorrosive connection node of an underground water pipe piping member according to claim 1, characterized in that: the inner side wall of the inner connecting pipe (11) is coated with an inner anti-corrosion coating.

3. An anticorrosive connection node of an underground water pipe piping member according to claim 2, characterized in that: the inner anti-corrosion coating covers the inner connecting pipe (11) and the inner sealing point (7) and extends towards two sides.

4. An anticorrosive joint node of a sewer pipe line member according to any one of claims 2 or 3, characterized in that: the inner anti-corrosion coating is an inner anti-corrosion coating A (9) and an inner anti-corrosion coating B (10) which are sequentially brushed in a stacked mode.

5. An anticorrosive connection node of an underground water pipe piping member according to claim 1, characterized in that: the edge of the pipe body anticorrosive layer (4) is polished with a roughening layer (5), and the thermal shrinkage belt (2) covers the roughening layer (5) and is tightly bonded.

6. An anticorrosive connection node of an underground water pipe piping member according to claim 1, characterized in that: the H-shaped edge sealing heat-shrinkable belt (6) comprises two annular belts (61) and a transverse sealing belt (62) which is integrally formed between the two annular belts.

7. An anti-corrosion connection node of an underground water pipe pipeline member according to claim 6, characterized in that: the two annular belts (61) respectively cover the joints at the positions of the heat-shrinkable belt (2) and the pipe body anticorrosive layer (4), and the transverse sealing belt (62) covers the transverse lap joint gap formed after the heat-shrinkable belt (2) is annularly closed.

8. An anticorrosive connection node of an underground water pipe piping member according to claim 1, characterized in that: and an asphalt layer (12) is coated on the outer surface of the heat-shrinkable belt (2).