CN214146889U - Gas pipeline crossover pipe fitting - Google Patents

Gas pipeline crossover pipe fitting Download PDF

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Publication number
CN214146889U
CN214146889U CN202022649028.1U CN202022649028U CN214146889U CN 214146889 U CN214146889 U CN 214146889U CN 202022649028 U CN202022649028 U CN 202022649028U CN 214146889 U CN214146889 U CN 214146889U
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China
Prior art keywords
pipe
gas
tube
connecting pipe
ring
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CN202022649028.1U
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Chinese (zh)
Inventor
孙德芝
倪志国
张松涛
万涛
王恒宇
彭涛
王鹏
贺申申
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Beijing Gas Group Co Ltd
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Beijing Gas Group Co Ltd
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Priority to CN202022649028.1U priority Critical patent/CN214146889U/en
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Abstract

The utility model discloses a gas pipeline cross-connecting pipe fitting, include: a connecting pipe; the flange is fixed at the first end of the connecting pipe; the gas transmission pipe is sleeved in the connecting pipe from the second end of the connecting pipe and is fixedly connected with the connecting pipe through a fastening ring and a fastening nut, the fastening ring is sleeved at the connecting part of the connecting pipe and the gas transmission pipe, the fastening nut is screwed on the connecting pipe and tightly presses the fastening ring, and the connecting pipe is arranged at the two ends of the gas transmission pipe; and the sealing ring is arranged between the gas transmission pipe and the connecting pipe. The utility model discloses in the scheme, can realize that the gas overhauls when transforming not stop the gas, not step down the operation, the pipe fitting is changed simply, fast, and is with low costs, connects firm, reliable, can effectively reduce the gas and diffuse, practice thrift the running cost, get rid of the potential safety hazard, reduce the operation risk, reduce the destruction to the environment.

Description

Gas pipeline crossover pipe fitting
Technical Field
The utility model relates to a gas overhauls and reforms transform technical field, especially relates to a gas pipeline cross-connecting pipe fitting.
Background
With the continuous popularization of gas use and the continuous increase of gas pipelines, the project amount of gas overhauling and reconstruction is also increased year by year. When the gas is overhauled and modified, how to achieve the operation of not stopping gas, not stepping down, reach simultaneously and reduce the gas and diffuse, practice thrift the operating cost, get rid of the potential safety hazard, reduce the operation risk, reduce the destruction to the environment, be the key breakthrough direction when the gas is overhauled and modified.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a gas pipeline cross-connecting pipe fitting for among the solution prior art, make the gas diffuse easily when the gas overhauls the transformation, with high costs, effect risk is high, destroy higher problem to the environment.
In order to solve the above problem, the utility model adopts the following technical scheme:
there is provided a gas line crossover fitting, comprising:
a connecting pipe;
a flange fixed at a first end of the connecting tube;
the gas transmission pipe is sleeved in the connecting pipe from the second end of the connecting pipe and is fixedly connected with the connecting pipe through a fastening ring and a fastening nut, the fastening ring is sleeved at the connecting part of the connecting pipe and the gas transmission pipe, the fastening nut is screwed on the connecting pipe and tightly presses the fastening ring, and the connecting pipe is arranged at each of the two ends of the gas transmission pipe;
and the sealing ring is arranged between the gas transmission pipe and the connecting pipe.
Optionally, the connecting pipe includes a first pipe section with a smaller diameter connected to the gas transmission pipe and a second pipe section with a larger diameter connected to the fastening nut, wherein an outer wall of the first pipe section is smooth, an outer wall of the second pipe section is provided with a thread, and the second pipe section is close to the second end relative to the first pipe section.
Optionally, the connecting pipe is formed by connecting a first pipe body and a second pipe body, the first pipe body is fixedly connected with the flange, the first pipe section and the second pipe section are arranged on the second pipe body, and the fastening nut is abutted to the end of the first pipe body.
Optionally, the connecting pipe is a metal pipe, and the connecting pipe is welded to the flange.
Optionally, along the axial of connecting pipe, the sealing washer with the tighrening ring dislocation, and along the axial of connecting pipe, be equipped with at least two circles the sealing washer.
Optionally, the gas transmission pipe is provided with at least two sections, the gas pipeline cross-connecting pipe further includes an auxiliary connection pipe connecting the two adjacent sections of the gas transmission pipe, and each gas transmission pipe is fixedly connected with the auxiliary connection pipe through different auxiliary fastening rings and auxiliary fastening nuts.
Optionally, the middle part of assisting the connecting pipe is equipped with the ring, assist fastening nut butt in the ring.
Optionally, the auxiliary connecting pipe is a metal pipe.
Optionally, the gas transmission pipe is a pure butyl octyl grease water band.
Optionally, the fastening ring is a metal ring.
The utility model discloses a technical scheme can reach following beneficial effect:
by the aid of the gas pipeline cross-connecting pipe fitting, gas is not stopped and pressure reduction operation is not performed during gas overhauling and transformation, namely, gas is not stopped in a community during construction, normal gas pressure can be kept, and normal use is not influenced; the gas pipeline jumper pipe fitting is simple and quick to replace, low in cost, stable and reliable in connection, and capable of effectively reducing gas emission, saving operation cost, eliminating potential safety hazards, reducing operation risks and reducing damage to the environment.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof of the present invention explain the present invention and do not form an improper limitation to the present invention. In the drawings:
fig. 1 is a schematic structural view of a gas pipeline crossover pipe disclosed by the present invention;
fig. 2 is a schematic view of a connection structure of a connection pipe and a flange disclosed by the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a schematic structural view of the fastening ring disclosed in the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is a schematic structural view of an auxiliary connection pipe disclosed in the present invention;
fig. 7 is a cross-sectional view taken along line C-C of fig. 6.
Wherein the following reference numerals are specifically included in figures 1-7:
connecting pipe-1; a flange-2; a gas transmission pipe-3; a fastening ring-4; a fastening nut-5; a sealing ring-6; an auxiliary connecting pipe-7; a first tube-11; a second tube-12; a first tube segment-121; a second tube segment-122; thread-123; circle-71.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the gas pipeline jumper pipe fitting of the present invention includes a connecting pipe 1, a flange 2, a gas transmission pipe 3, a fastening ring 4, a fastening nut 5, and a sealing ring 6. The flange 2 is fixed in the one end of connecting pipe 1, and gas transmission pipe 3 sets up with 1 components of a whole that can function independently of connecting pipe, and during the use, gas transmission pipe 3 overlaps on connecting pipe 1 from the other end of connecting pipe 1, and is fixed through tighrening ring 4 and fastening nut 5, seals gas transmission pipe 3 and connecting pipe 1 through sealing washer 6 to the both ends of gas transmission pipe 3 all are connected with connecting pipe 1. This gas pipeline is striden and is used when pipe fitting is particularly useful for long distance (for example about 1 kilometer) operation of striding the street, for example, get into a certain section gas pipeline corrosion damage in district by the outside, when needing to be changed, flange 2 and the interface connection at corrosion damage gas pipeline both ends at 3 both ends of gas transmission pipe utilize this gas pipeline to stride the pipe fitting and temporarily replace the gas pipeline air feed and get into the district, do not influence resident's normal use.
The gas pipeline cross-connecting pipe fitting can realize gas supply and pressure reduction operation during gas emergency, namely, the gas supply of a cell can not be stopped in construction, the normal gas pressure can be kept, and the normal use can not be influenced; the gas pipeline jumper pipe fitting is simple and quick to replace, low in cost, stable and reliable in connection, and capable of effectively reducing gas emission, saving operation cost, eliminating potential safety hazards, reducing operation risks and reducing damage to the environment.
To achieve the above object, the components of the gas line crossover fitting may be arranged in various ways, and the configuration of the components will be described in detail below by taking specific examples as examples.
The connecting pipe 1 is a metal pipe, is durable, corrosion-resistant, pressure-resistant and wear-resistant, and can bear 1.3 tons. As shown in fig. 2 and 3, the connecting pipe 1 is formed by welding two sections of pipes, one end of the first pipe 11 is provided with a convex edge, and the other end is welded with the flange 2. The second tubular body 12 includes a first tubular section 121 and a second tubular section 122. The outer wall of the first pipe section 121 is smooth, the outer wall of the second pipe section 122 is provided with threads 123, the diameter of the first pipe section 121 is smaller than that of the second pipe section 122, and the end of the first pipe body 11 provided with the flange is welded to the end of the second pipe section 122. Of course, the first tubular body 11 may not be provided with a flange, but may have a diameter larger than that of the second tubular section 122. When the gas transmission pipe 3 is connected, the first pipe section 121 is sleeved with the sealing ring 6, then the gas transmission pipe 3 is sleeved from the first pipe section 121 until the gas transmission pipe 3 is close to the second pipe section 122, then the fastening ring 4 is added outside the gas transmission pipe 3 and is matched with the fastening nut 5 for fixing, so that the gas transmission pipe 3 is further sealed and does not leak gas, and the transmission pressure can reach 4 kilograms and does not leak gas.
After the fastening nut 5 is screwed, the fastening nut abuts against the convex edge (i.e., the end portion) of the first pipe body 11, so that the fixing firmness of the fastening nut 5 is improved. As shown in fig. 4 and 5, the fastening ring 4 may be a metal ring, which is formed by bending a section of metal wire, and is durable, corrosion-resistant, flexible to operate, and capable of improving the fixing firmness of the gas transmission pipe 3. Along the axial of connecting pipe 1, sealing washer 6 misplaces with tighrening ring 4 to be equipped with two rings at least sealing washers 6, improve the leakproofness of gas transmission pipe 3.
The gas transmission pipe 3 can be a pure octyl grease water band, the operating environment temperature is-30 ℃ to 65 ℃ in the service life, the gas leakage and high pressure resistance can not be damaged after the gas transmission pipe is used for many times, and the service cycle can reach three years or can be continuously used for more than 100 times in one year.
When a longer gas transmission pipe 3 is needed, the gas transmission pipe 3 may be provided with at least two sections, and each two adjacent sections of the gas transmission pipe 3 are fixed on an auxiliary connecting pipe 7 (shown in fig. 6 and 7) through an auxiliary fastening ring and an auxiliary fastening nut. The auxiliary connecting pipe 7 can be a metal pipe, a circular ring 71 is arranged in the middle of the metal pipe, threads 123 are arranged on two sides of the circular ring 71, and the auxiliary fastening nut is screwed in place and then abuts against the circular ring 71, so that the fixing firmness of the auxiliary fastening nut 5 is improved.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.

Claims (10)

1. A gas line crossover fitting, comprising:
a connecting pipe;
a flange fixed at a first end of the connecting tube;
the gas transmission pipe is sleeved in the connecting pipe from the second end of the connecting pipe and is fixedly connected with the connecting pipe through a fastening ring and a fastening nut, the fastening ring is sleeved at the connecting part of the connecting pipe and the gas transmission pipe, the fastening nut is screwed on the connecting pipe and tightly presses the fastening ring, and the connecting pipe is arranged at each of the two ends of the gas transmission pipe;
and the sealing ring is arranged between the gas transmission pipe and the connecting pipe.
2. A gas line crossover fitting according to claim 1, wherein the connection tube comprises a first smaller diameter tube section connected to the gas delivery tube and a second larger diameter tube section connected to the fastening nut, wherein the outer wall of the first tube section is smooth and the outer wall of the second tube section is threaded and is proximate the second end relative to the first tube section.
3. A gas line crossover fitting as claimed in claim 2, wherein the connecting tube is formed by connecting a first tube section to the flange, the first and second tube sections being provided on the second tube section, and the fastening nut abutting against an end of the first tube section.
4. The gas line crossover fitting of claim 2, wherein the connecting tube is a metal tube, and the connecting tube and the flange are welded together.
5. A gas line crossover fitting as claimed in claim 2, wherein the sealing ring is offset from the tightening ring in the axial direction of the connecting tube, and at least two rings of the sealing ring are provided in the axial direction of the connecting tube.
6. The gas pipeline crossover fitting of claim 1, wherein the gas delivery pipe is provided with at least two sections, the gas pipeline crossover fitting further comprises an auxiliary connection pipe connecting two adjacent sections of the gas delivery pipe, and each gas delivery pipe is fixedly connected with the auxiliary connection pipe through different auxiliary fastening rings and auxiliary fastening nuts.
7. The gas pipeline crossover fitting as defined in claim 6, wherein the secondary connecting tube is provided at a middle portion thereof with a circular ring, and the secondary fastening nut abuts against the circular ring.
8. The gas line crossover fitting of claim 6, wherein the secondary connecting tube is a metal tube.
9. Gas line crossover fitting according to any of claims 1-8, wherein the gas transfer pipe is a pure butyl octyl grease water hose.
10. A gas line crossover fitting as claimed in any one of claims 1 to 8, wherein the fastening ring is a metal ring.
CN202022649028.1U 2020-11-16 2020-11-16 Gas pipeline crossover pipe fitting Active CN214146889U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022649028.1U CN214146889U (en) 2020-11-16 2020-11-16 Gas pipeline crossover pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022649028.1U CN214146889U (en) 2020-11-16 2020-11-16 Gas pipeline crossover pipe fitting

Publications (1)

Publication Number Publication Date
CN214146889U true CN214146889U (en) 2021-09-07

Family

ID=77564655

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022649028.1U Active CN214146889U (en) 2020-11-16 2020-11-16 Gas pipeline crossover pipe fitting

Country Status (1)

Country Link
CN (1) CN214146889U (en)

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