CN114396516A

CN114396516A - Natural gas line pressure testing connecting device

Info

Publication number: CN114396516A
Application number: CN202210123322.XA
Authority: CN
Inventors: 艾明; 范永奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-04-26

Abstract

The invention discloses a natural gas pipeline pressure test connecting device, which comprises: the flange plate is arranged on the main pipeline; the flange plate is arranged at the open end of the main pipeline, the first branch pipeline and the second branch pipeline are arranged on the side face of the main pipeline and are respectively communicated with the main pipeline, the first control valve is arranged on the first branch pipeline, and the second control valve is arranged on the second branch pipeline. The device has the advantages of simple structure, easy processing and manufacture, convenient installation, and suitability for being installed outdoors, especially on an outdoor natural gas pipeline, and can be fixedly installed on the natural gas pipeline with required pressure test for a long time, thus being equivalent to providing a connector, and facilitating the later stage to carry out pressure test and exhaust of the natural gas pipeline at any time.

Description

Natural gas line pressure testing connecting device

Technical Field

The invention relates to the technical field of natural gas pipelines, in particular to a natural gas pipeline pressure test connecting device.

Background

After the natural gas pipeline is installed, a tightness test and a strength test are required to be carried out, wherein the tightness test and the strength test are respectively carried out for 24 hours, and the test pressure is 1.15 times of the design pressure of the pipeline; 1 hour of strength test, the test pressure is 1.5 times the design pressure. At present, in the pressure test, a special connecting device is lacked, and a pressure gauge and a pressurizing device used for pressure test are not well connected with a natural gas pipeline, so that the pressure test work is inconvenient to carry out.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a natural gas pipeline pressure test connecting device.

The technical scheme of the invention is as follows: the utility model provides a natural gas line pressure testing connecting device which characterized in that includes: the flange plate is arranged on the main pipeline;

the flange plate is arranged at the open end of the main pipeline, the first branch pipeline and the second branch pipeline are arranged on the side face of the main pipeline and are respectively communicated with the main pipeline, the first control valve is arranged on the first branch pipeline, and the second control valve is arranged on the second branch pipeline.

Further, the first control valve is detachably connected with the first branch pipeline.

Further, the second control valve is detachably connected with the second branch pipeline.

Further, the first control valve and the second control valve are both manual ball valves.

Further, the flange plate is connected with the main pipeline in a welding mode.

Furthermore, a plurality of connecting through holes are formed in the flange plate.

Compared with the prior art, the invention has the following beneficial effects:

the device has the advantages of simple structure, easy processing and manufacture, convenient installation, and suitability for being installed outdoors, especially on an outdoor natural gas pipeline, and can be fixedly installed on the natural gas pipeline with required pressure test for a long time, thus being equivalent to providing a connector, and facilitating the later stage to carry out pressure test and exhaust of the natural gas pipeline at any time.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:

FIG. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention.

Reference numerals:

1. a main pipeline; 2. a flange plate; 3. a first branch line; 4. a second branch pipe; 5. a first control valve; 6. a second control valve; 7. and connecting the through holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", "radial", "axial", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

A natural gas pipeline pressure test connection device according to an embodiment of the present invention is described below with reference to fig. 1 to 2 of the accompanying drawings, including: the device comprises a main pipeline 1, a flange plate 2, a first branch pipeline 3, a second branch pipeline 4, a first control valve 5 and a second control valve 6.

As shown in fig. 1 and 2, one end of the main pipeline 1 is open, the other end is closed, the open end of the main pipeline 1 is provided with a flange 2, the side surface of the main pipeline 1 is provided with a first branch pipeline 3 and a second branch pipeline 4, the first branch pipeline 3 and the second branch pipeline 4 are respectively communicated with the main pipeline 1, the first branch pipeline 3 is provided with a first control valve 5, and the second branch pipeline 4 is provided with a second control valve 6.

In the concrete application, main line 1 can use the open steel pipe in both ends to one of them one end welding head at the steel pipe is made, the welding is gone up the head, the steel pipe just only one end is opened, then can open and hold a ring flange 2 of welding again, be equipped with a plurality of connect the via hole 7 on the ring flange 2, also correspond the ring flange 2 that sets up the flange that has connect the via hole 7 on the natural gas line that needs to connect, can use bolt and nut to fix main line 1 on natural gas line after two ring flanges 2 correspond.

The welding has first branch pipeline 3 and second branch pipeline 4 on main line 1's the lateral wall, first branch pipeline 3 and second branch pipeline 4 communicate with main line 1 respectively, can dismantle on the first branch pipeline 3 and be equipped with first control valve 5, can dismantle on the second branch pipeline 4 and be equipped with second control valve 6, be convenient for from this installation and the later stage change of first control valve 5 and second control valve 6, first control valve 5 is used for controlling the break-make of first branch pipeline 3, second control valve 6 is used for controlling the break-make of second branch pipeline 4, first control valve 5 and second control valve 6 can be manual ball valve. The working principle of the manual ball valve is to rotate the valve core to open or close the valve. The ball valve switch is light, small in size, reliable in sealing, simple in structure and convenient to maintain, can be made into a large-caliber ball valve, a sealing surface and a spherical surface are always in a closed state, and are not easily eroded by a medium, so that the ball valve switch is widely applied to various industries.

This device is before using, need link to each other the ring flange 2 of main line 1 with natural gas line's ring flange 2 and fix with the installation that carries out the device, main line 1 is in the connected state with natural gas line this moment, link to each other pressure device and first control valve 5 again, link to each other manometer and second control valve 6, then open first control valve 5 and second control valve 6, open the pressure device after, pressure device inflates the pressurization to natural gas line, the manometer then is used for detecting pressure, can realize natural gas line's pressure testing from this. After the device is used, other complicated connecting pieces are not needed, the pressure test installation process can be simplified, and the pressure test detection of the natural gas pipeline is convenient to carry out.

The device is simple in structure, easy to process and manufacture, convenient to install, suitable for being installed outdoors, especially on an outdoor natural gas pipeline, and capable of being fixedly installed on the natural gas pipeline with required pressure testing for a long time, so that a connector is equivalently provided, the later stage is convenient to perform pressure testing and exhausting of the natural gas pipeline at any time, and the device is convenient to use.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a natural gas line pressure testing connecting device which characterized in that includes: the flange plate is arranged on the main pipeline;

2. The natural gas pipeline pressure testing connecting device of claim 1, wherein the first control valve is detachably connected with the first branch pipeline.

3. The natural gas pipeline pressure testing connecting device as claimed in claim 1, wherein the second control valve is detachably connected with the second branch pipeline.

4. The natural gas pipeline pressure test connecting device of claim 1, wherein the first control valve and the second control valve are both manual ball valves.

5. The natural gas pipeline pressure test connecting device as claimed in claim 1, wherein the flange plate is connected with the main pipeline in a welding mode.

6. The natural gas pipeline pressure test connecting device of claim 1, wherein a plurality of connecting through holes are arranged on the flange plate.