CN217502983U

CN217502983U - Connect municipal gas pipeline of firm canned type

Info

Publication number: CN217502983U
Application number: CN202220573427.0U
Authority: CN
Inventors: 温殿永
Original assignee: Cangzhou Bohai New Area Yongcheng Construction Development Co ltd
Current assignee: Cangzhou Bohai New Area Yongcheng Construction Development Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-09-27
Anticipated expiration: 2032-03-16

Abstract

The utility model relates to a gas pipeline technical field specifically is a connect firm canned type's municipal gas pipeline, including a pipe body, the innermost of body is the inlayer, the inside of body is including the filling layer. The utility model has the advantages that: the expanded filling ring is filled with a foamed polyurethane material through the injection port and is made of a rubber material, the expanded filling ring is extruded to two sides after being expanded, so that the clamping ring can be tightly extruded by the sealing groove, a good sealing effect is achieved, and then the joint of the two pipelines is welded, so that the gas pipeline is better in sealing performance; the filling layer fills and forms behind the polyurethane foam for the space between inlayer and the back up coat, can play the heat preservation effect, and the back up coat improves the holistic structural strength of pipeline, and shock resistance and compression resistance are good, and difficult the splitting, and the protective layer is the polyethylene material, plays anticorrosive waterproof effect to this gas pipeline good reliability, waterproof, anticorrosive, the durability is good.

Description

Connect municipal gas pipeline of firm canned type

Technical Field

The utility model relates to a gas pipeline technical field, especially a connect firm canned type's municipal gas pipeline.

Background

The natural gas pipeline refers to a pipeline for conveying natural gas (including associated gas produced by an oil field) from a mining place or a processing plant to a city gas distribution center or an industrial enterprise user, and is also called a gas transmission pipeline.

The natural gas pipeline is used for conveying natural gas, and is a way for conveying a large amount of natural gas on land. Natural gas pipelines account for about half of the total pipeline length in the world. The existing natural gas pipe is mainly connected in a mode of inserting and welding, but because the pipe diameter of the municipal natural gas pipe is large, tight welding at each position of a joint cannot be guaranteed, and therefore the existing gas pipe is lack of sealing performance and has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a connect municipal gas pipeline of firm canned type.

The purpose of the utility model is realized through the following technical scheme: a stably-connected and sealed municipal gas pipeline comprises a pipe body, wherein the innermost side of the pipe body is an inner layer, a filling layer is arranged inside the pipe body, and the filling layer is fixedly connected to the outer side of the inner layer;

the outer surface of the filling layer is fixedly connected with a reinforcing layer, and the outer surface of the reinforcing layer is fixedly connected with a protective layer;

one side of the pipe body is fixedly connected with a first interface, the other side of the pipe body is fixedly connected with a second interface, and the outer surface of the first interface is fixedly connected with a clamping ring;

the inboard of second interface has been seted up with the corresponding seal groove of snap ring, it has the expansion packing circle to integrate in seal groove department on the second interface, two sprue have been seted up on the expansion packing circle, the expansion packing circle is sealed at sprue department fixedly connected with.

Optionally, the pipe body integrally comprises an inner layer, a filling layer, a reinforcing layer and a protective layer, and the inner layer is made of steel.

Optionally, the filling layer is specifically filled with polyurethane, and the reinforcing layer is a steel wire plastic fiber layer.

Optionally, the thickness of the reinforcing layer is smaller than that of the filling layer, and the protective layer is made of polyethylene and plays a role in corrosion prevention and water prevention.

Optionally, the thickness of the protective layer is smaller than that of the reinforcing layer, and the first connector is inserted into the inner side of the second connector of another pipeline when the pipeline is connected.

Optionally, the shape of the snap ring is matched with the shape of the seal groove, and the vertical cross section of the snap ring is triangular.

Optionally, polyurethane is filled in the expansion filling ring and the expansion is performed to enable the sealing groove to tightly extrude the clamping ring, so that a better sealing effect is achieved, and then the joint of the two pipelines is welded, so that the gas pipeline is better in sealing performance.

The utility model has the advantages of it is following:

1. this connect municipal gas pipeline of firm canned type, this body is when another body is connected, utilize first interface to insert the second interface of another body, the cross-section can be oppressed until the seal groove of card income second interface for triangular snap ring this moment, the improvement contact, utilize sharp column structure to prevent gas leakage, it is further, it has the inflation packing ring to integrate in seal groove department on the second interface, two sprue have been seted up on the inflation packing ring, the inflation packing ring is sealed at sprue department fixedly connected with, fill into the foaming polyurethane material to the inflation packing ring through the sprue, and the inflation packing ring is rubber materials, it extrudees to both sides after the inflation, make the seal groove can closely extrude the snap ring, thereby play better sealed effect, the junction of two pipelines of later rewelding, thereby the leakproofness of this gas pipeline is better.

2. This connect municipal gas pipeline of firm canned type, the innermost of body is the inlayer, the inside of body is including the filling layer, filling layer fixed connection is in the outside of inlayer, the outer fixed surface of filling layer is connected with the back up coat, the outer fixed surface of back up coat is connected with the protective layer, the body is whole by the inlayer, the filling layer, back up coat and protective layer are constituteed, the filling layer forms after filling into polyurethane foam for the space between inlayer and the back up coat, can play the heat preservation effect, the back up coat improves the holistic structural strength of pipeline, shock resistance and compression resistance can be good, difficult the fracture, the protective layer is the polyethylene material, play anticorrosive waterproof effect, thereby this gas pipeline good reliability, waterproofness, it is anticorrosive, and the durability is good.

Drawings

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

FIG. 2 is a schematic structural view of the tube body without the gasket of the present invention;

FIG. 3 is a schematic cross-sectional view of the tube body of the present invention;

fig. 4 is a schematic cross-sectional view of the sealing groove of the present invention;

fig. 5 is a schematic sectional view of the snap ring of the present invention.

In the figure: the pipe comprises a pipe body 1, an inner layer 2, a filling layer 3, a reinforcing layer 4, a protective layer 5, a first connector 6, a second connector 7, a snap ring 8, a sealing groove 9, an expansion filling ring 10, an injection port 11 and a sealing gasket 12.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-5, a stably connected and sealed municipal gas pipeline comprises a pipe body 1, wherein the innermost side of the pipe body 1 is an inner layer 2, a filling layer 3 is arranged inside the pipe body 1, and the filling layer 3 is fixedly connected to the outer side of the inner layer 2;

the outer surface of the filling layer 3 is fixedly connected with a reinforcing layer 4, and the outer surface of the reinforcing layer 4 is fixedly connected with a protective layer 5;

one side of the pipe body 1 is fixedly connected with a first connector 6, the other side of the pipe body 1 is fixedly connected with a second connector 7, and the outer surface of the first connector 6 is fixedly connected with a clamping ring 8;

the inboard of second interface 7 has been seted up and has been seted up with the corresponding seal groove 9 of snap ring 8, and the second interface 7 is gone up and is integrated with expansion packing ring 10 in seal groove 9 department, has seted up two sprue 11 on the expansion packing ring 10, and expansion packing ring 10 is sealed the pad 12 in sprue 11 department fixedly connected with.

As a preferred technical solution of the utility model: the pipe body 1 integrally comprises an inner layer 2, a filling layer 3, a reinforcing layer 4 and a protective layer 5, wherein the inner layer 2 is made of steel, the filling layer 3 is specifically filled with polyurethane, the reinforcing layer 4 is a steel wire plastic fiber layer, the thickness of the reinforcing layer 4 is smaller than that of the filling layer 3, and the reinforcing layer 4 improves the overall structural strength of the pipeline, is good in impact resistance and compression resistance and is not easy to crack;

the protective layer 5 is made of polyethylene, and the thickness of the protective layer 5 is smaller than that of the reinforcing layer 4, so that the effects of corrosion resistance and water resistance are achieved;

first interface 6 inserts the second interface 7 of another pipeline inboard when connecting the pipeline, and the shape of snap ring 8 and the shape looks adaptation of seal groove 9, and the vertical cross sectional shape of snap ring 8 is triangle-shaped, and the concrete inside polyurethane that fills of inflation packing ring 10 makes its inflation make seal groove 9 closely extrude snap ring 8 to play better sealed effect, the junction of two pipelines of later welding again, thereby this gas pipeline's leakproofness is better.

The working process of the utility model is as follows:

s1, the pipe body 1 integrally consists of an inner layer 2, a filling layer 3, a reinforcing layer 4 and a protective layer 5;

s2, when the pipe body 1 is connected with another pipe body 1, the first connector 6 is inserted into the second connector 7 of the other pipe body 1, at the moment, the clamping ring 8 with the triangular section is pressed until the clamping ring is clamped into the sealing groove 9 of the second connector 7, contact is improved, the pointed structure is utilized to prevent gas leakage, furthermore, an expansion filling ring 10 is integrated on the second connector 7 at the sealing groove 9, two injection ports 11 are formed in the expansion filling ring 10, a sealing gasket 12 is fixedly connected to the expansion filling ring 10 at the injection ports 11, a foaming polyurethane material is filled into the expansion filling ring 10 through the injection ports 11, the expansion filling ring 10 is made of a rubber material, and the expansion filling ring is extruded to two sides, so that the clamping ring 8 can be tightly extruded by the sealing groove 9;

and S3, welding the joint of the first connector 6 and the second connector 7, thereby completing the connection of the pipeline.

In conclusion, when the stably-connected and sealed municipal gas pipeline is used, when another pipe body 1 is connected, the first connector 6 is inserted into the second connector 7 of the other pipe body 1, at the moment, the clamping ring 8 with the triangular cross section is pressed until the clamping ring is clamped into the sealing groove 9 of the second connector 7, contact is improved, a pointed structure is utilized to prevent gas leakage, furthermore, an expansion filling ring 10 is integrated at the sealing groove 9 on the second connector 7, two injection ports 11 are formed on the expansion filling ring 10, a sealing gasket 12 is fixedly connected to the expansion filling ring 10 at the injection ports 11, a foaming polyurethane material is filled into the expansion filling ring 10 through the injection ports 11, the expansion filling ring 10 is made of a rubber material, the expansion filling ring is extruded to two sides, so that the sealing groove 9 can tightly press the clamping ring 8, a good sealing effect is achieved, and then the joint of the two pipelines is welded, therefore, the gas pipeline has better sealing performance; the innermost of body 1 is inlayer 2, the inside of body 1 is including

filling layer

3, 3 fixed connection in the outside of inlayer 2 of filling layer, the outer fixed surface of filling layer 3 is connected with back up coat 4, the outer fixed surface of back up coat 4 is connected with protective layer 5, body 1 is whole by inlayer 2, filling layer 3, back up coat 4 and protective layer 5 are constituteed, filling layer 3 fills to form after polyurethane foam material for the space between inlayer 2 and the back up coat 4, can play the heat preservation effect, back up coat 4 improves the holistic structural strength of pipeline, shock resistance and compression resistance are good, difficult fracture, protective layer 5 is the polyethylene material, play anticorrosive waterproof effect, thereby this gas pipeline good reliability, water-proofing, corrosion-proofing, and durability are good.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a connect municipal gas pipeline of firm canned type which characterized in that: the pipe comprises a pipe body (1), wherein the innermost side of the pipe body (1) is an inner layer (2), a filling layer (3) is arranged inside the pipe body (1), and the filling layer (3) is fixedly connected to the outer side of the inner layer (2);

the outer surface of the filling layer (3) is fixedly connected with a reinforcing layer (4), and the outer surface of the reinforcing layer (4) is fixedly connected with a protective layer (5);

a first interface (6) is fixedly connected to one side of the pipe body (1), a second interface (7) is fixedly connected to the other side of the pipe body (1), and a clamping ring (8) is fixedly connected to the outer surface of the first interface (6);

the inboard of second interface (7) has been seted up with corresponding seal groove (9) of snap ring (8), it has inflation packing circle (10) to locate to integrate at seal groove (9) on second interface (7), two sprue (11) have been seted up on inflation packing circle (10), inflation packing circle (10) are in the sealed pad (12) of fixedly connected with of sprue (11) department.

2. The firmly-sealed municipal gas pipeline of claim 1, wherein: the pipe body (1) integrally comprises an inner layer (2), a filling layer (3), a reinforcing layer (4) and a protective layer (5), and the inner layer (2) is made of steel.

3. The firmly-sealed municipal gas pipeline of claim 1, wherein: the filling layer (3) is filled with polyurethane, and the reinforcing layer (4) is a steel wire plastic fiber layer.

4. The firmly-sealed municipal gas pipeline of claim 1, wherein: the thickness of the reinforcing layer (4) is smaller than that of the filling layer (3), and the protective layer (5) is made of polyethylene.

5. The firmly-sealed municipal gas pipeline of claim 1, wherein: the thickness of the protective layer (5) is smaller than that of the reinforcing layer (4), and the first connector (6) is inserted into the inner side of a second connector (7) of another pipeline when the pipeline is connected.

6. The firmly-sealed municipal gas pipeline of claim 1, wherein: the shape of snap ring (8) and the shape looks adaptation of seal groove (9), the vertical cross-sectional shape of snap ring (8) is triangle-shaped.

7. The firmly-sealed municipal gas pipeline of claim 1, wherein: polyurethane is filled in the expansion filling ring (10) and the expansion filling ring is expanded to enable the sealing groove (9) to tightly extrude the clamping ring (8).