CN212537530U

CN212537530U - Detection device for natural gas pipeline leakage

Info

Publication number: CN212537530U
Application number: CN202021194075.5U
Authority: CN
Inventors: 胡旭峰; 姚俊
Original assignee: Chuzhou Xin'ao Clean Energy Co ltd
Current assignee: Chuzhou Xin'ao Clean Energy Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-12
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a detection apparatus for be used for natural gas line to leak, roof including bottom fixedly connected with bracing piece, double-shaft motor is installed at the roof top, the output shaft transmission at double-shaft motor both ends is connected with the worm, the pivot has been run through to the roof both sides, the worm wheel of being connected with the worm meshing has been cup jointed in the extension end outside at pivot top, the eccentric wheel has been cup jointed in the extension end outside of pivot bottom, both sides the slide bar has all been run through on the bracing piece. The utility model discloses in, rotate through biax motor drive worm, the transmission system drive eccentric wheel that constitutes through worm, worm wheel and pivot rotates, through the sliding connection between C shape cardboard and the annular spout, realizes the horizontal migration of slide bar, and then wraps up in the natural gas line through the sealed cowling of both sides and catches to carry out gas leakage detection test to the natural gas line, avoid the dismouting of sealed cowling, labour saving and time saving improves work efficiency.

Description

Detection device for natural gas pipeline leakage

Technical Field

The utility model relates to a natural gas line leak testing technical field especially relates to a detection device for natural gas line leaks.

Background

The natural gas pipeline is a pipeline for transporting natural gas, including associated gas produced in oil fields, 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 the most important mode for conveying natural gas on land in large quantities.

The current notice number is CN207702138U (a gaseous detection device for natural gas line), including fixing the sealed cowling in the pipe connection department and being used for detecting the gaseous detector of leakage, the sealed cowling includes sealed cowling and lower sealed cowling, it is the shell structure of semi-annular with lower sealed cowling to go up the sealed cowling, the both ends of going up sealed cowling and lower sealed cowling all are provided with epitaxial overlap, and form a whole through the laminating of epitaxial overlap, be provided with nut component on the epitaxial overlap, upward be provided with on the sealed cowling and detect a section of thick bamboo, the inductive probe of gaseous detector is pegged graft inside the sealed cowling through detecting a section of thick bamboo.

However, the detection device among the prior art utilizes nut component to go up sealed cowling and lower sealed cowling threaded connection, and the gas leakage condition of surveying natural gas line again, but in actual life, because natural gas line lays very long, then needs a large amount of manpowers to dismantle the installation at this moment and survey again and just can accomplish the detection, wastes time and energy, and is inefficient, consequently, lacks the detection device that the natural gas line that a sealed cowling and natural gas line of being convenient for wrapped up in and connect leaked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, the invention provides a detection device for natural gas pipeline leakage.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a detection apparatus for be used for natural gas line to leak, includes the roof of bottom fixedly connected with bracing piece, double-shaft motor is installed at the roof top, the output shaft transmission at double-shaft motor both ends is connected with the worm, the roof both sides are run through there is the pivot, the worm wheel of being connected with the worm meshing is cup jointed in the extension end outside at pivot top, the eccentric wheel has been cup jointed in the extension end outside of pivot bottom, both sides all run through the slide bar on the bracing piece, the high adaptation of one end fixedly connected with of slide bar and the symmetry set up hold natural gas line's the sealed cowling, two inside airtight cavity that forms during the butt joint of sealed cowling, the one end fixedly connected with opening of slide bar is towards the C shape cardboard on a left side, the annular spout that holds two free ends of C shape cardboard.

As a further description of the above technical solution:

and one side of the sealing cover is provided with an air hole communicated with the closed cavity.

As a further description of the above technical solution:

sealing strips are arranged on the contact surfaces of the sealing covers on the two sides.

As a further description of the above technical solution:

and a polish rod penetrating through the two sealing covers is fixedly connected between the support rods at two sides.

As a further description of the above technical solution:

two free ends of the C-shaped clamping plate are respectively provided with a first roller which is in rolling contact with the annular sliding groove.

As a further description of the above technical solution:

and a second roller in rolling contact with the ground is arranged at the bottom of the supporting rod.

As a further description of the above technical solution:

the power box is installed at the top of the top plate, the outer side of the power box is electrically connected with the control switch, and the double-shaft motor, the power box and the control switch are electrically connected with each other.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, rotate through biax motor drive worm, the transmission system drive eccentric wheel that constitutes through worm, worm wheel and pivot rotates, through the sliding connection between C shape cardboard and the annular spout, realizes the horizontal migration of slide bar, and then wraps up in the natural gas line through the sealed cowling of both sides and catches to carry out gas leakage detection test to the natural gas line, avoid the dismouting of sealed cowling, labour saving and time saving improves work efficiency.

2. The utility model discloses in, through the sealing strip that sets up on the sealed cowling of both sides, improve the leakproofness of airtight cavity in the sealed cowling, improve the accuracy that gas leakage detected, through the polished rod of running through connection on the sealed cowling, take place relative offset when preventing that the sealed cowling of both sides from removing, stability and accuracy when guaranteeing two sealed cowlings butt joints further improve the accuracy that gas leakage detected time measuring.

Drawings

Fig. 1 shows a schematic structural diagram provided according to an embodiment of the present invention;

fig. 2 shows an enlarged schematic view at a provided according to an embodiment of the present invention;

fig. 3 shows a schematic top view of an eccentric according to an embodiment of the present invention;

fig. 4 shows a schematic top view provided according to an embodiment of the present invention;

fig. 5 shows a schematic front sectional view of a seal cover according to an embodiment of the present invention.

Illustration of the drawings:

1. a top plate; 2. a worm; 3. a worm gear; 4. a double-shaft motor; 5. a power supply box; 6. a control switch; 7. a support bar; 8. a rotating shaft; 9. an eccentric wheel; 901. an annular chute; 10. a first roller; 11. a C-shaped clamping plate; 12. a slide bar; 13. a second roller; 14. a sealing cover; 15. a polish rod; 16. a sealing strip; 17. and (4) air holes.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a detection device for natural gas pipeline leakage comprises a top plate 1, the bottom of which is fixedly connected with a support rod 7, a double-shaft motor 4 is installed at the top of the top plate 1, output shafts at two ends of the double-shaft motor 4 are in transmission connection with worms 2, rotating shafts 8 penetrate through two sides of the top plate 1, the worms 2 are driven to rotate by the output shafts of the double-shaft motor 4, worm wheels 3 meshed with the worms 2 are sleeved outside extension ends at the tops of the rotating shafts 8, the worm wheels 3 are further driven to rotate, the rotating shafts 8 are further driven to rotate, eccentric wheels 9 are sleeved outside extension ends at the bottoms of the rotating shafts 8, the eccentric wheels 9 are further driven to rotate, slide rods 12 penetrate through the support rods 7 at two sides, one ends of the slide rods 12 are fixedly connected with sealing covers 14 which are adaptive in height and symmetrically arranged and used for containing natural gas pipelines, a closed cavity is formed inside when the two, the C-shaped clamping plate 11 only moves horizontally along with the slide bar 12 under the limitation of the through connection between the slide bar 12 and the support bar 7, so that the horizontal movement of the slide bar 12 is realized through the rotation of the eccentric wheel 9, thereby realizing the mutual approaching and departing of the sealing covers 14 at the two sides, facilitating the gas leakage detection test of the natural gas pipeline, avoiding the manual disassembly and assembly of the detection components, saving time and labor, improving the working efficiency, paying attention to, under the self-locking action of the worm 2 and the worm wheel 3, the sealing covers 14 at two sides can be fixed and tightly wrapped at the outer side of the natural gas pipeline, when a gas leakage detection test is prevented, the sealing cover 14 is separated from the natural gas pipeline to influence the accuracy of the detection result, the top and the bottom of the eccentric wheel 9 are both provided with annular sliding grooves 901 for accommodating two free ends of the C-shaped clamping plate 11, meanwhile, the C-shaped clamping plate 11 can ensure that the eccentric wheel 9 drives the sliding rod 12 to move horizontally when rotating.

Specifically, as shown in fig. 5, an air hole 17 communicating with the closed cavity is formed in one of the sealing covers 14, and the gas detection head extends into the sealing cover 14 through the air hole 17 to detect whether the natural gas pipeline leaks, and if the natural gas is detected, it indicates that the natural gas pipeline in the section has a leakage problem, and otherwise, the natural gas pipeline does not exist.

Specifically, as shown in fig. 1 and 5, the sealing strips 16 are respectively disposed on the contact surfaces of the two side sealing covers 14, when the two side sealing covers 14 are butted, the sealing performance of the sealed cavity is improved by the contact of the sealing strips 16, and the sealing strips 16 are similar to the sealing device used on the refrigerator door, so that the sealing performance is good.

Specifically, as shown in fig. 1 and 5, the polish rod 15 penetrating through the two sealing caps 14 is fixedly connected between the two side support rods 7, the moving direction of the sealing caps 14 is fixed, the relative deviation of the two side sealing caps 14 during moving is prevented, the stability and accuracy of the two sealing caps 14 during butt joint are ensured, and the accuracy during detection is further improved.

Specifically, as shown in fig. 1 and 2, two free ends of the C-shaped catch plate 11 are respectively provided with a first roller 10 in rolling contact with the annular chute 901, so that when the eccentric wheel 9 rotates, the frictional resistance between the C-shaped catch plate 11 and the inside of the annular chute 901 is reduced, and the rotation of the eccentric wheel 9 is conveniently converted into the horizontal movement of the sliding rod 12.

Specifically, as shown in the figure, the bottom of the support rod 7 is provided with a second roller 13 in rolling contact with the ground, so that the moving device is convenient to move integrally, and periodic gas leakage detection tests are convenient to be carried out on the natural gas pipeline.

Specifically, as shown in fig. 1 and 4, a power box 5 is installed at the top of the top plate 1, the power box 5 provides power for the biaxial motor 4, a control switch 6 is electrically connected to the outer side of the power box 5, the control switch 6 can control the start and stop of the biaxial motor 4, the power box 5 and the control switch 6 are electrically connected, and the biaxial motor 4, the power box 5 and the control switch 6 are electrically connected through wires to form a loop.

The working principle is as follows: when the device is used, firstly, the device is integrally moved to the outer side of the natural gas pipeline, the natural gas pipeline is positioned in the middle position of the sealing covers 14 on the two sides, then, the double-shaft motor 4 is started through the control switch 6, the output shaft of the double-shaft motor 4 drives the worm 2 to rotate, the worm wheel 3 is driven to rotate according to the gear meshing transmission principle, the rotating shaft 8 is further driven to rotate, the eccentric wheel 9 is further driven to rotate, the sliding rod 12 is moved in the horizontal direction through the sliding connection between the annular sliding groove 901 and the C-shaped clamping plate 11, the sealing covers 14 on the two sides are further moved close to the natural gas pipeline until the natural gas pipeline is wrapped in the sealing covers 14, then, the control switch 6 is closed, the double-shaft motor 4 is closed, the sealing covers 14 are fixed on the outer side of the natural gas pipeline under the self-locking action of the worm 2 and the worm, carrying out a gas leakage detection test on the natural gas pipeline;

after this section of natural gas line gas leakage detection, the output shaft of control double-shaft motor 4 reverses, repeats above-mentioned theory of operation for natural gas line is kept away from to sealed cowling 14, through second gyro wheel 13 with device integral movement to next section wait to detect the natural gas line on, continues to carry out gas leakage detection test, avoids artifical manual dismantlement installation determine module, labour saving and time saving improves work efficiency.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The detection device for the leakage of the natural gas pipeline comprises a top plate (1) fixedly connected with supporting rods (7) at the bottom, and is characterized in that a double-shaft motor (4) is installed at the top of the top plate (1), output shafts at two ends of the double-shaft motor (4) are in transmission connection with worms (2), rotating shafts (8) penetrate through two sides of the top plate (1), worm wheels (3) meshed with the worms (2) are sleeved outside extension ends at the top of the rotating shafts (8), eccentric wheels (9) are sleeved outside the extension ends at the bottom of the rotating shafts (8), sliding rods (12) penetrate through the supporting rods (7) at two sides, one end of each sliding rod (12) is fixedly connected with sealing covers (14) which are adaptive in height and symmetrically arranged and used for containing the natural gas pipeline, a closed cavity is formed inside when the sealing covers (14) are butted, one end of each sliding rod (12) is fixedly connected with a C-shaped clamping plate (11, the top and the bottom of the eccentric wheel (9) are both provided with annular sliding grooves (901) for accommodating two free ends of the C-shaped clamping plate (11).

2. The natural gas pipeline leakage detection device according to claim 1, wherein an air hole (17) communicated with the closed cavity is formed in one side of the sealing cover (14).

3. The device for detecting the leakage of the natural gas pipeline according to claim 1, wherein a sealing strip (16) is arranged on the contact surface of the sealing cover (14) on two sides.

4. The device for detecting the leakage of the natural gas pipeline according to claim 1, wherein a polish rod (15) penetrating through two sealing covers (14) is fixedly connected between the supporting rods (7) at two sides.

5. The detection device for natural gas pipeline leakage according to claim 1, characterized in that the two free ends of the C-shaped clamping plate (11) are provided with first rollers (10) which are in rolling contact with the annular sliding grooves (901).

6. The device for detecting natural gas pipeline leakage according to claim 1, characterized in that the bottom of the support rod (7) is provided with a second roller (13) which is in rolling contact with the ground.

7. The natural gas pipeline leakage detection device according to claim 1, wherein a power supply box (5) is installed on the top of the top plate (1), a control switch (6) is electrically connected to the outer side of the power supply box (5), and the double-shaft motor (4), the power supply box (5) and the control switch (6) are electrically connected.