CN211738657U

CN211738657U - High stability gas introduction pipe-line system

Info

Publication number: CN211738657U
Application number: CN201921686827.7U
Authority: CN
Inventors: 魏凯; 杨凡; 李岩
Original assignee: Tianjin Gas Heat Planning Design And Research Institute Co ltd
Current assignee: Tianjin Gas Heat Planning Design And Research Institute Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-10-23
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a high stability gas introduction pipe-line system, the metal collapsible tube has been increased on the outdoor gas supply horizontal pipe among traditional gas introduction pipe-line system, when the outdoor gas supply is responsible for and the outdoor gas supply horizontal pipe takes place inhomogeneous settlement, the deformation of accessible metal collapsible tube self compensates, offset the pipeline displacement, effectively reduce the additional stress that produces to each interface on the outdoor gas supply horizontal pipe, guarantee the stability and the security of pipeline operation, avoid the pipeline because of warping, the gas leakage phenomenon that the fracture caused, eliminate the potential safety hazard. Meanwhile, the pipeline bracket and the vertical pipe support are respectively additionally arranged at the outdoor gas supply horizontal pipe and the indoor gas supply vertical pipe, so that the stability of a gas introducing pipeline system is further improved, and the gas supply safety is ensured.

Description

High stability gas introduction pipe-line system

Technical Field

The utility model belongs to the technical field of the gas supply, especially, pipeline system is introduced to high stability gas.

Background

With the widespread development of urban infrastructure construction and clean energy utilization, the application of natural gas has spread to thousands of households. The fuel gas introducing pipeline system is used as an important node of a fuel gas supply system and plays an important role in connecting an outdoor air supply main pipe and an indoor air supply vertical pipe. The outdoor air supply main pipe is mainly laid on the residential road and greening in a buried way, and the outdoor air supply horizontal pipe is laid on the building main body in an overhead way; the main structure of the building has good foundation support, the settlement is small, and most of the residential road and the greening foundation adopts backfill soil, and the settlement is large, so that the uneven settlement of the outdoor air supply main pipe and the outdoor air supply horizontal pipe is easily caused, and each interface of the fuel gas inlet pipe is added with certain additional stress. In actual use, the phenomenon of gas leakage caused by deformation and breakage of the gas inlet pipe or the joint of the gas inlet pipe and the indoor gas supply vertical pipe occurs, and particularly, the phenomenon is highlighted in areas with large urban foundation settlement, so that great potential safety hazards are caused to an urban gas supply system. In order to solve the above problems, it is necessary to improve the conventional gas introduction piping system, and to provide a solution capable of improving the stability and safety of gas supply.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a high stability gas introduction pipe-line system.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-stability gas introduction pipeline system comprises buried gas supply main pipes, buried overhead pipeline connecting pipes, flanges, outdoor gas supply vertical pipes, reducing tee joints, outdoor gas supply horizontal pipes, introduction valves, 90-degree elbows, sleeves, equal-diameter tee joints, indoor gas supply vertical pipes and flange covers, and further comprises pipe fittings such as metal hoses, pipeline supports, pipe clamps, rubber gaskets, vertical pipe supports, circular steel plates, expansion bolts, nuts, gaskets and the like. The buried air supply main pipe is connected with a buried overhead pipeline connecting pipe, the buried overhead pipeline connecting pipe is connected with an outdoor air supply vertical pipe through a flange, and the outdoor air supply vertical pipe is connected with an outdoor air supply horizontal pipe through a reducing tee; the outdoor air supply horizontal pipe is provided with a metal hose, an introduction valve and a 90-degree elbow; the outdoor air supply horizontal pipe is connected with the indoor air supply vertical pipe through the equal-diameter tee after being laid through the wall; and the indoor air supply vertical pipe is connected to each layer of air supply room to supply air for users.

As an optimal technical scheme of the utility model, bury ground air feed trunk pipe and adopt straight seam resistance welding steel pipe, the material is Q235B, and is anticorrosive to adopt reinforced polyethylene three-layer composite structure anticorrosive.

As an optimal technical scheme of the utility model, buried overhead pipeline connecting pipe adopts seamless steel pipe, and the material is 20 steel, and is anticorrosive to adopt the cold area of twining of RD 6.

As an optimal technical scheme of the utility model, outdoor air feed riser, outdoor air feed horizontal pipe, indoor air feed riser, sleeve pipe and riser support all adopt hot-galvanize welding steel pipe, and the material is Q235B.

As an optimal technical scheme of the utility model, reducing tee, 90 elbows, equal diameter tee all adopt seamless pipe fitting.

As an optimal technical scheme of the utility model, metal collapsible tube adopts stainless steel material preparation, and 300mm ~ 500mm is chooseed for use to length, and nominal pressure is 1.0 ~ 2.5MPa, and the connection form is flange joint.

As an optimal technical scheme of the utility model, introduce the valve and adopt cast steel ball valve, the connected form is flange joint.

As an optimal technical scheme of the utility model, the pipe bracket adopts the angle steel preparation.

As an optimal technical scheme of the utility model, the pipe strap adopts C type pipe strap.

As an optimal technical scheme of the utility model, pipe fittings such as outdoor air feed riser, outdoor air feed horizontal pipe, indoor air feed riser, reducing tee bend, 90 elbows, reducing tee bend all adopt welded connection, and the welding rod model adopts E4315.

As an optimal technical scheme of the utility model, the riser supports all adopts welded connection with the connected form of flange cover and circular steel sheet, and the welding rod model adopts E4315.

As an optimized technical scheme of the utility model, the flange adopts board-like flat welding flange.

The utility model discloses the beneficial effect who reaches: the utility model relates to a high stability gas introduction pipe-line system, the metal collapsible tube has been increased on the outdoor gas supply horizontal pipe in traditional gas introduction pipe-line system, when the outdoor gas supply is responsible for and the outdoor gas supply horizontal pipe takes place inhomogeneous settlement, the deformation of accessible metal collapsible tube self compensates, offset the pipeline displacement, effectively reduce the additional stress that produces to each interface on the outdoor gas supply horizontal pipe, guarantee the stability and the security of pipeline operation, avoid the pipeline because of warping, the gas leakage phenomenon that the fracture caused, eliminate the potential safety hazard. Meanwhile, the pipeline bracket and the vertical pipe support are respectively additionally arranged at the outdoor gas supply horizontal pipe and the indoor gas supply vertical pipe, so that the stability of a gas introducing pipeline system is further improved, and the gas supply safety is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 shows the process flow schematic diagram of the gas introducing pipeline system of the utility model.

Fig. 2 shows the installation structure of the gas introducing pipe system of the present invention.

Fig. 3 is a left side view of the installation of the pipe bracket of the present invention.

Fig. 4 is a top view of the pipe bracket according to the present invention.

Fig. 5 is a left side view of the pipe clamp of the present invention.

Fig. 6 is a front view of the pipe clamp of the present invention.

In the figure, 1-burying a gas supply main pipe; 2-buried overhead pipeline connecting pipe; 3-a flange; 4-outdoor air supply vertical pipe; 5-reducing tee; 6-horizontal pipe for outdoor air supply; 7-metal hose; 8-an introduction valve; 9-90 degree elbow; 10-a sleeve; 11-equal diameter tee; 12-indoor air supply vertical pipe; 13-a flange cover; 14-a rubber gasket; 15-vertical pipe support; 16-round steel plate; 17-a pipe support; 18-pipe strap; 1701-expansion bolts; 1801-nut; 1802-a washer.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when used in this specification the singular forms "a", "an" and/or "the" include "specify the presence of stated features, steps, operations, elements, or modules, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Examples

As shown in fig. 1-6, the utility model adopts the following technical scheme: the utility model provides a high stability gas introduction piping system, includes buried air feed trunk 1, buried overhead pipeline connecting pipe 2, flange 3, outdoor air feed riser 4, reducing tee 5, outdoor air feed horizontal pipe 6, introduction valve 8, 90 elbow 9, sleeve pipe 10, constant diameter tee 11, indoor air feed riser 12, flange lid 13, its innovation point lies in still including tubular fittings such as metal collapsible tube 7, pipeline support 17, pipe strap 18, rubber gasket 14, riser support 15, circular steel sheet 16, expansion bolts 1701, nut 1801, packing ring 1802. The buried air supply main pipe 1 is connected with a buried overhead pipeline connecting pipe 2, the buried overhead pipeline connecting pipe 2 is connected with an outdoor air supply vertical pipe 4 through a flange 3, and the outdoor air supply vertical pipe is connected with an outdoor air supply horizontal pipe 6 through a reducing tee 5; the outdoor air supply horizontal pipe 6 is provided with a metal hose 7, an introduction valve 8 and a 90-degree elbow 9; after the outdoor air supply horizontal pipe is laid through the wall, the outdoor air supply horizontal pipe is connected with an indoor air supply vertical pipe 12 through an equal-diameter tee 11; the indoor air supply vertical pipe 12 is connected to each layer of air room to supply air for users.

Specifically, the buried air supply trunk pipe 1 is buried to a depth of not less than 0.9m below a roadway, and is buried to a depth of not less than 0.6m below a non-roadway, and the pipeline is to be a courtyard pipeline with a slope of not less than 0.001.

Specifically, after the pipeline is installed, the upper pipe orifice of the reducing tee 5 is forbidden to be welded by a blind plate, and the flange 3 and the flange cover 13 are adopted to seal the upper part, so that the pipeline is convenient to open in the future during maintenance.

Specifically, the metal hose 7 and the inlet valve 8 should be sequentially installed on the outdoor air supply horizontal pipe 6 along the air transmission direction to protect the inlet valve 8 and avoid bearing additional stress when uneven settlement of the pipeline occurs.

Specifically, the installation height of the inlet valve 8 should be convenient for personnel to operate, and should be set in a position where the inlet valve is not easily collided, so as to ensure the safety of the gas supply system.

Specifically, when the metal hose 7 is installed, the elevation of the connection direction interface with the reducing tee 5 is preferably higher than the elevation of the connection direction interface with the introducing valve 8 by 100mm, so as to improve the settlement compensation amount.

In particular, the pipe bracket 17 and the pipe clamp 18 are arranged on the horizontal outdoor air supply pipe 6 between the metal hose 7 and the inlet valve 8, so as to ensure that the horizontal outdoor air supply pipe 6 has good support and stability, and simultaneously avoid the joint of the inlet valve 8 from being damaged by stress when uneven settlement occurs.

In particular, the pipe bracket 17 is fixed to the building wall using expansion bolts 1701 to ensure a stable connection between the pipe bracket 17 and the wall.

Specifically, the pipe clamp 18 is fixed to the pipe bracket 17 by a nut 1801 and a washer 1802, so as to ensure that the outdoor air supply horizontal pipe 6 is securely mounted on the pipe bracket 17.

In particular, the outdoor air supply horizontal duct 6 should be installed in the casing 10 while passing through the wall, and the gap between the casing 10 and the wall should be filled, and its length should be the entire length of the structure to be passed through. The gap between the sleeve 10 and the horizontal outdoor air supply pipe 6 should be sealed by flexible anticorrosive and waterproof material.

In particular, the bottom of the indoor air supply vertical pipe 12 is sealed by welding by a flange cover 13. Meanwhile, the lower part of the stand pipe is provided with a stand pipe support 15 to ensure that the stand pipe has stable support and avoid fracture damage caused by bending and displacement.

In particular, the diameter of the vertical pipe support 15 is the same as that of the indoor air supply vertical pipe 12. The upper end is welded and blocked by a flange cover 13, and the lower end is welded and blocked by a round steel plate 16. The pipe diameter of the circular steel plate 16 should be two-step larger than that of the riser support 15.

Specifically, when the indoor air supply vertical pipe 12 is installed with the vertical pipe support 15 at the bottom, a rubber gasket 14 is arranged between the flange covers 13.

In particular, rubber flange gaskets are additionally arranged on the connection between the flanges 3 or the connection between the flanges 3 and the flange cover 13 so as to ensure the installation tightness and avoid air leakage.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A high-stability gas introduction pipeline system is characterized by comprising a buried gas supply main pipe, a buried overhead pipeline connecting pipe, a flange, an outdoor gas supply vertical pipe, a reducing tee, an outdoor gas supply horizontal pipe, an introduction valve, a 90-degree elbow, an equal-diameter tee, an indoor gas supply vertical pipe, a metal hose, a pipeline bracket and a pipe clamp,

the buried air supply main pipe is connected with a buried overhead pipeline connecting pipe, the buried overhead pipeline connecting pipe is connected with an outdoor air supply vertical pipe through a flange, and the outdoor air supply vertical pipe is connected with an outdoor air supply horizontal pipe through a reducing tee; the outdoor air supply horizontal pipe is sequentially provided with a metal hose, an inlet valve and a 90-degree elbow at intervals in the direction from the reducing tee to the equal-diameter tee, and is connected with the indoor air supply vertical pipe through the equal-diameter tee after being laid through the wall; the indoor air supply vertical pipe is connected to each layer of air supply room to supply air for users;

set up pipeline bracket and pipe strap on the outdoor air feed horizontal pipe in the middle of metal collapsible tube and the introduction valve, the pipe strap cover is in on the outdoor air feed horizontal pipe just pipe strap and pipeline bracket fix, and pipeline bracket fixes with building wall.

2. The high-stability fuel gas introducing pipeline system according to claim 1, wherein the buried gas supply trunk pipe is a straight-slit resistance welded steel pipe made of Q235B, and the corrosion prevention is realized by adopting a reinforced polyethylene three-layer composite structure.

3. The high-stability gas introducing pipeline system according to claim 1, wherein the buried overhead pipeline connecting pipe is made of seamless steel pipe and is made of 20 steel, and the corrosion prevention is realized by cold winding of RD 6.

4. The high-stability fuel gas inlet pipeline system according to claim 1, wherein the vertical outdoor gas supply pipe, the horizontal outdoor gas supply pipe and the vertical indoor gas supply pipe are made of hot-dip galvanized welded steel pipes and are made of Q235B.

5. The high stability gas introduction piping system of claim 1, wherein said reducing tee, 90 ° elbow, and equal tee are seamless pipes.

6. The high-stability fuel gas introducing pipeline system according to claim 1, wherein the metal hose is made of stainless steel, the length of the metal hose is 300 mm-500 mm, the nominal pressure of the metal hose is 1.0-2.5 MPa, and the metal hose is connected by a flange.

7. The high-stability gas inlet pipeline system according to claim 1, wherein the inlet valve is a cast steel ball valve, and the connection form is a flange connection.

8. The high stability gas introduction piping system of claim 1, wherein said piping bracket is made of angle steel.

9. The high-stability gas inlet pipeline system according to claim 1, wherein the pipe clamp is a C-shaped pipe clamp.

10. The high stability gas introduction piping system of claim 1, wherein said vertical outdoor gas supply pipe, horizontal outdoor gas supply pipe, vertical indoor gas supply pipe, reducing tee, 90 ° elbow, and equal tee are all welded together, and the type of welding rod is E4315.