CN218212869U

CN218212869U - Detection device for maintaining natural gas long-distance pipeline

Info

Publication number: CN218212869U
Application number: CN202222207031.7U
Authority: CN
Inventors: 邓磊; 贺旭歌; 周小超
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-03
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a natural gas long distance pipeline maintains uses detection device belongs to gas pipeline and maintains technical field, include the detection ring of constituteing by first collar and second collar, first collar and second collar all are the semicircle ring-type, and the articulated cooperation installation of first collar and second collar, first collar and second collar are inside all seted up and to hold the chamber, and horizontal installation has the detector on the second collar, and the both ends of first collar and second collar have all been seted up and have been inlayed and establish the groove, inlay and establish the inslot and be provided with rubber air bag, and rubber air bag's outside edge is installed and is used for inflating sealed valve inside. This detection device is used in long-distance pipeline of natural gas maintenance can conveniently install when examining the gas transmission pipeline that carries out different diameters in the course of the work and can guarantee through the inflation of rubber leather hose that detection device can stabilize sealing treatment with the gas transmission pipeline of different pipe diameters, guarantees the accuracy that detection device detected.

Description

Detection device for maintaining natural gas long-distance pipeline

Technical Field

The utility model belongs to the technical field of the gas pipeline is maintained, especially, relate to a natural gas long distance pipeline is maintained and is used detection device.

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 the gas conveying pipeline is assembled by connecting single pipes one by one. Modern gas collection pipelines and gas transmission pipelines are formed by connecting steel pipes through electric welding.

The steel pipe has various types, such as a seamless pipe, a spiral seam pipe and a straight seam pipe, the seamless pipe is suitable for a pipeline with the pipe diameter of less than 529 mm, and the spiral seam pipe and the straight seam pipe are suitable for a large-diameter pipeline. The pipe cross section structure of the gathering and transportation pipeline is complexly an inner coating, a steel pipe, an outer insulating layer and a heat preservation (cold insulation) layer; the simple structure is only a steel pipe and an outer insulating layer, the inner wall coating and the heat preservation (cold insulation) layer are determined according to the gas transmission process, the air tightness detection needs to be carried out on the flange at the joint of the pipeline and the pipeline when the natural gas pipeline is jacked up for maintenance, and the stable connection and good air tightness between the pipeline and the pipeline are ensured.

The existing detection device for maintaining the gas transmission pipeline can only detect and process the gas transmission pipeline with a specific pipe diameter mostly when maintenance and detection are carried out, the problems that the overall airtightness of the detection device is poor and the like easily occur when the detection is carried out on pipelines with different diameters, and the detection device is not beneficial to the follow-up detection work.

Therefore, the detection device for maintaining the long-distance natural gas pipeline is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art, current gas transmission pipeline maintains uses detection device, and detection device mostly can only detect to the gas transmission pipeline of specific pipe diameter when maintaining the detection, easily appears detection device's the relatively poor scheduling problem of whole airtight when detecting different diameter pipelines, is unfavorable for the problem of going on of follow-up detection work, and the long gas transmission pipeline who provides maintains uses detection device.

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

a detection device for maintaining a natural gas long-distance pipeline comprises a detection ring consisting of a first mounting ring and a second mounting ring, wherein the first mounting ring and the second mounting ring are both semicircular, the first mounting ring and the second mounting ring are hinged and matched to be installed, accommodating cavities are formed in the first mounting ring and the second mounting ring respectively, a detector is transversely installed on the second mounting ring, embedding grooves are formed in two ends of the first mounting ring and the second mounting ring respectively, rubber air bags are arranged in the embedding grooves, and valve cores for inflating and sealing are installed on the outer side edges of the rubber air bags;

the valve inside include with the communicating pipe of rubber gasbag intercommunication, wear to establish on the communicating pipe and install the intake pipe, install in the intake pipe and be used for hollow rubber leather hose, the outer fringe department of communicating pipe installs the fixed cover that supplementary intake pipe compressed tightly, communicating pipe with screw-thread fit between the fixed cover.

As a further preferred scheme, a protruding plate protrudes and is fixed on one side of the first mounting ring and the second mounting ring, which is far away from the hinged end, a protruding block protrudes and is arranged on the protruding plate on the first mounting ring, and a clamping groove for the protruding block to be inserted is formed in the protruding plate on the second mounting ring.

As a further preferred scheme, positioning cavities are symmetrically formed in the protruding block, positioning assemblies are arranged in the positioning cavities, and positioning holes matched with the positioning assemblies for positioning are symmetrically formed in the two side edges of the clamping groove.

As a further preferred scheme, locating component slides including the symmetry and sets up locating pin in the location intracavity, the center department of outstanding piece rotates and is provided with the carousel, the locating pin with the connecting band is installed to the cover establishment between the carousel, the location intracavity be provided with the supplementary locating pin promote release the spring carousel bottom department install the knob, the knob rotates to inlay to establish and installs in outstanding board bottom department.

As a further preferable scheme, a sealing gasket is embedded and mounted on one side edge of the protruding plate of the first mounting ring and the protruding plate of the second mounting ring, which are adjacent to each other.

As a further preferred scheme, supporting pieces are symmetrically arranged in the accommodating cavities of the first mounting ring and the second mounting ring.

As a further preferred scheme, the support piece comprises a screw rod fixed in the accommodating cavity, an adjusting sleeve is rotatably arranged at the bottom of the screw rod, the screw rod is in threaded fit with the adjusting sleeve, and an arc-shaped jacking plate is rotatably arranged at one end, far away from the screw rod, of the adjusting sleeve.

To sum up, the utility model discloses a technological effect and advantage: according to the detection device for maintaining the natural gas long-distance pipeline, the rubber tube and the valve inside on the first mounting ring and the second mounting ring are matched, so that the detection device can be ensured to be stably sealed with gas pipelines with different pipe diameters by the inflation of the rubber tube when the gas pipelines with different diameters are mounted and detected conveniently in the working process, and the detection accuracy of the detection device is ensured;

through the support piece that sets up, the cooperation between lead screw, adjusting collar, the tight board in support piece can be adjusted the position of tight board in top according to the gas transmission pipeline of different pipe diameters before the work to make the detection device that first collar and second collar are constituteed can with gas transmission pipeline between play the effect of auxiliary stay.

Drawings

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

FIG. 2 is a longitudinal sectional view of the present invention after being installed on a gas pipeline;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

fig. 4 is an enlarged view of the present invention at B in fig. 3;

fig. 5 is a longitudinal sectional view of the positioning assembly corresponding to the protruding block of the present invention.

In the figure: 1. a first mounting ring; 2. a second mounting ring; 3. a protruding block; 31. a clamping groove; 4. a rubber air bag; 5. a valve core; 51. a communicating pipe; 6. an air inlet pipe; 7. a rubber hose; 8. fixing a sleeve; 9. a gas pipeline; 10. a support member; 11. a screw rod; 12. an adjusting sleeve; 13. a jacking plate; 14. a detector; 15. a gasket; 16. a positioning assembly; 17. positioning pins; 18. a turntable; 181. a knob; 19. a connecting belt; 20. pushing out the spring.

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.

Referring to fig. 1 and 2, a natural gas long distance pipeline maintains uses detection device, include the detection ring of constituteing by first collar 1 and second collar 2, first collar 1 and second collar 2 all are half circular, first collar 1 and the articulated cooperation installation of second collar 2, first collar 1 and the inside chamber that holds that has all been seted up of second collar 2, transversely install detector 14 on the second collar 2, the model of detector 14 is GD-CGI, can use but not be limited to this model, first collar 1 and second collar 2 keep away from one side of hinged end and stand out the board, the outstanding piece 3 that is provided with on the outstanding board on the first collar 1, offer the joint groove 31 that supplies outstanding piece 3 to peg graft on the outstanding board on the second collar 2.

Inlay on the adjacent side on the protruding board of above-mentioned first collar 1 and second collar 2 and establish and install sealed 15, through the sealed 15 that seals that set up, can guarantee the whole leakproofness of

first collar

1 and 2 junctions of second collar in the course of the work, guarantee that the condition such as gas leakage can not appear in detection device overall seal when detecting state.

Wherein, support piece 10 is installed to the symmetry in the chamber that holds of first collar 1 and second collar 2, and support piece 10 is including fixing the lead screw 11 that holds in the chamber, and lead screw 11 bottom department rotates and is provided with adjusting collar 12, screw-thread fit between lead screw 11 and the adjusting collar 12, and curved tight board 13 in top is installed in the one end rotation that adjusting collar 12 keeps away from lead screw 11.

Through the support piece 10 that sets up, rotate adjusting collar 12, screw-thread fit between adjusting collar 12 and the lead screw 11, thereby adjust support piece 10's whole height, and then make top grip 13 can stabilize the joint and install the outer fringe department at gas transmission pipeline 9, can adjust the position of top grip 13 according to the gas transmission pipeline 9 of different pipe diameters before the work, thereby make the detection device that first collar 1 and second collar 2 constitute can and gas transmission pipeline 9 between play the effect of auxiliary stay.

Referring to fig. 1, 3 and 4, the two ends of the first mounting ring 1 and the second mounting ring 2 are both provided with embedding grooves, rubber air bags 4 are arranged in the embedding grooves, and the outside edges of the rubber air bags 4 are provided with valve cores 5 for inflating and sealing, and when the tire inflating device works in detail, the valve cores 5 can be the same as the structure of a tire inflating nozzle in the prior art.

The valve core 5 comprises a communicating pipe 51 communicated with the rubber air bag 4, an air inlet pipe 6 is arranged on the communicating pipe 51 in a penetrating mode, a hollow rubber leather hose 7 is arranged on the air inlet pipe 6, a fixing sleeve 8 pressed by the auxiliary air inlet pipe 6 is arranged at the outer edge of the communicating pipe 51, and the communicating pipe 51 is in threaded fit with the fixing sleeve 8.

Through the cooperation between the rubber leather hose 7 and the fixed cover 8 of the intake pipe 6 on the valve core 5 that sets up, can conveniently realize the quick gassing of filling of rubber gasbag 4, the rubber leather hose 7 can guarantee the whole of rubber gasbag 4 sealed after aerifing simultaneously after aerifing.

Referring to fig. 1 and 3, the inside of the protruding block 3 is symmetrically provided with positioning cavities, the positioning cavities are provided with positioning assemblies 16, two side edges of the clamping groove 31 are symmetrically provided with positioning holes matched and positioned with the positioning assemblies 16, the positioning assemblies 16 comprise positioning pins 17 symmetrically and slidably arranged in the positioning cavities, the center of the protruding block 3 is rotatably provided with a turntable 18, a connecting belt 19 is sleeved between the positioning pins 17 and the turntable 18, the positioning cavities are internally provided with push-out springs 20 for assisting the pushing of the positioning pins 17, the bottom of the turntable 18 can be conveniently provided with a knob 181 by the arranged push-out springs 20 in the working process, the knob 181 is rotatably embedded at the bottom of the protruding plate,

through setting up locating component 16, rotate knob 181, knob 181 drives carousel 18, carousel 18 drives connecting band 19 and rotates, connecting band 19 drives locating pin 17 and removes, thereby make locating pin 17 release from the locating hole, locating pin 17 removes to drive simultaneously and releases spring 20 and remove and is compressed, can dismantle fast first collar 1 and second collar 2 through locating component 16, only need directly to close first collar 1 and second collar 2 and can fix when the installation simultaneously, can improve detection device's whole dismantlement installation effectiveness.

The working principle is as follows: before the work, rotate adjusting collar 12, screw-thread fit between adjusting collar 12 and the lead screw 11 to adjust the whole height of support piece 10, and then make the outer fringe department at gas transmission pipeline 9 of stable joint installation of puller plate 13 ability.

During installation, the first installation ring 1 and the second installation ring 2 are installed at the flange of the outer edge of the gas transmission pipeline 9, the top tightening plate 13 is pushed against the outer edge of the gas transmission pipeline 9, the protruding block 3 on the first installation ring 1 and the clamping groove 31 on the second installation ring 2 are clamped in a matched mode, and therefore the positioning pin 17 on the positioning assembly 16 is installed in the positioning hole in an inserted mode, and the first installation ring 1 and the second installation ring 2 are installed in a matched and positioned mode.

When carrying out inflatable seal, send into valve inside 5 with gaseous through intake pipe 6 and rubber leather hose 7 in, make 5 whole collisions of valve inside, thereby make 5 inflation of valve inside, and then make 5 bottoms laminating of valve inside in the outer fringe department of gas transmission pipeline 9, thereby realize the whole sealed processing of first collar 1 and second collar 2, the gas that holds intracavity inner space that constitutes first collar 1 and second collar 2 is detected through detector 14, thereby realize that pipeline flange joint department carries out gas leak testing.

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 maintaining the natural gas long-distance pipeline comprises a detection ring consisting of a first installation ring (1) and a second installation ring (2), and is characterized in that the first installation ring (1) and the second installation ring (2) are both semicircular, the first installation ring (1) and the second installation ring (2) are hinged and installed in a matched mode, accommodating cavities are formed in the first installation ring (1) and the second installation ring (2), a detector (14) is transversely installed on the second installation ring (2), embedding grooves are formed in two ends of the first installation ring (1) and the second installation ring (2), rubber air bags (4) are arranged in the embedding grooves, and valve cores (5) for inflating and sealing are installed on the outer side of the rubber air bags (4);

valve inside (5) include with communicating pipe (51) of rubber gasbag (4) intercommunication, wear to establish on communicating pipe (51) and install intake pipe (6), install on intake pipe (6) and be used for hollow rubber leather hose (7), the outer fringe department of communicating pipe (51) installs fixed cover (8) that supplementary intake pipe (6) compress tightly, communicating pipe (51) with screw-thread fit between fixed cover (8).

2. The detection device for maintaining the long-distance natural gas pipeline as claimed in claim 1, wherein a protruding plate protrudes and is fixed on one side, away from the hinged end, of the first installation ring (1) and the second installation ring (2), a protruding block (3) protrudes and is arranged on the protruding plate on the first installation ring (1), and a clamping groove (31) for the protruding block (3) to be inserted and connected is formed in the protruding plate on the second installation ring (2).

3. The detection device for maintaining the natural gas long-distance pipeline according to claim 2, wherein the protruding block (3) is symmetrically provided with positioning cavities therein, positioning components (16) are arranged in the positioning cavities, and positioning holes matched and positioned with the positioning components (16) are symmetrically formed on two side edges of the clamping groove (31).

4. The detection device for maintaining the natural gas long-distance pipeline is characterized in that the positioning component (16) comprises positioning pins (17) which are symmetrically and slidably arranged in a positioning cavity, a turntable (18) is rotatably arranged at the center of the protruding block (3), a connecting belt (19) is sleeved between the positioning pins (17) and the turntable (18), a push-out spring (20) pushed by the auxiliary positioning pin (17) is arranged in the positioning cavity, a knob (181) is arranged at the bottom of the turntable (18), and the knob (181) is rotatably embedded and arranged at the bottom of the protruding plate.

5. The detection device for maintaining the long-distance natural gas pipeline as claimed in claim 4, wherein a sealing gasket (15) is embedded and installed on one adjacent side edge of the protruding plate of the first installation ring (1) and the protruding plate of the second installation ring (2).

6. The detection device for maintaining the long-distance natural gas pipeline is characterized in that supporting pieces (10) are symmetrically arranged in accommodating cavities of the first mounting ring (1) and the second mounting ring (2).

7. The detection device for maintaining the natural gas long-distance pipeline according to claim 6, wherein the support member (10) comprises a screw rod (11) fixed in the accommodating cavity, an adjusting sleeve (12) is rotatably arranged at the bottom of the screw rod (11), the screw rod (11) and the adjusting sleeve (12) are in threaded fit, and an arc-shaped tightening plate (13) is rotatably arranged at one end, away from the screw rod (11), of the adjusting sleeve (12).