CN113606503B - Air leakage detection device for natural gas pipeline transportation - Google Patents
Air leakage detection device for natural gas pipeline transportation Download PDFInfo
- Publication number
- CN113606503B CN113606503B CN202111043134.8A CN202111043134A CN113606503B CN 113606503 B CN113606503 B CN 113606503B CN 202111043134 A CN202111043134 A CN 202111043134A CN 113606503 B CN113606503 B CN 113606503B
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- detector
- pipeline
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- support
- detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000003345 natural gas Substances 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 28
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 6
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a gas leakage detection device for natural gas pipeline transportation, wherein the upper travelling mechanism and the lower travelling mechanism are arranged, so that the automatic detection of the leakage of a gas pipeline can be realized, meanwhile, a first detector and a second detector are positioned at the two radial sides of the pipeline, and the detection ends of the first detector and the second detector can be arranged in a reciprocating manner during detection, so that the detection precision and the reliability can be effectively improved, and the detection range is improved; the end sides of the first detector and the second detector are provided with supporting rollers which can rotate around the axis of the supporting rollers, and the supporting rollers can relatively roll with the outer surface of the pipeline in a matched mode, so that the moving stability of the first detector and the second detector can be effectively improved, the reliability in detection is guaranteed, shaking is reduced, and the service life is prolonged.
Description
Technical Field
The invention particularly relates to an air leakage detection device for natural gas pipeline transportation, and relates to the field of natural gas pipeline detection.
Background
At present, for some exposed natural gas pipelines, due to the existence of corrosion, ageing and other problems, in order to ensure the safety of the natural gas pipelines, the leakage problem of the natural gas pipelines needs to be detected regularly so as to be discovered and treated early when tiny problems such as cracks and the like initially occur, and currently, a leakage detector is generally manually held for detection along the pipelines, so that the detection mode is low in efficiency, and effective detection is difficult to be carried out on positions which are difficult to reach by people. Meanwhile, the mode of hand holding is easy to be influenced by the outside, so that the detection precision is not high, the timeliness of discovery is influenced, and potential safety hazards are easy to occur.
Disclosure of Invention
Accordingly, in order to solve the above-described drawbacks, the present invention provides a leak detection apparatus for natural gas pipeline transportation.
The invention is realized by constructing a gas leakage detection device for natural gas pipeline transportation, which comprises an upper bracket, a lower bracket, an elastic connecting column, a first detector, a second detector, an upper travelling mechanism and a lower travelling mechanism, wherein the upper bracket and the lower bracket are detachably connected, the elastic connecting column is arranged on the upper bracket and the lower bracket in a connecting way, the upper travelling mechanism is arranged on the upper bracket, the lower travelling mechanism is arranged on the lower bracket, the elastic connecting column can be arranged in a telescopic way in the connecting direction between the upper bracket and the lower bracket, the first detector is arranged on the upper travelling mechanism, the second detector is arranged on the lower travelling mechanism, the upper bracket and the lower bracket are respectively sleeved on the two radial sides of a pipeline to be detected, the upper travelling mechanism and the lower travelling mechanism can enable the device to move along the extending direction of the pipeline, the first detector and the second detector are positioned on the two radial sides of the pipeline, and the first detector and the second detector can reciprocate when in detection.
Further, preferably, end sides of the first and second detectors are provided with support rollers which are rotatably provided around their own axes and which are capable of relatively rolling in cooperation with an outer surface of the pipe.
Further, preferably, the upper bracket is symmetrically provided with two elastic connection columns, the lower bracket is also symmetrically provided with two elastic connection columns, and the elastic connection columns on the upper bracket and the elastic connection columns on the lower bracket are symmetrically arranged.
Further, as the preference, the tip of the junction of upper bracket with the lower carriage is all integrally provided with the linking clip, go up the linking clip of support with adopt bolt or block to connect between the linking clip of lower carriage, go up running gear and running gear structure down the same, just go up running gear with running gear down the setting of the equal elastic deformation of one end of pipeline contact with, so that make go up running gear and running gear down and can closely laminate the contact pipeline, go up running gear and running gear down and all adopt respective driving motor drive.
Further, preferably, the driving motor is controlled by a controller, and the controller can control the driving motor of the upper traveling mechanism and the driving motor of the lower traveling mechanism to move synchronously or asynchronously.
Further, as the preference, go up running gear and running gear down all include support frame, mount pad, first roller, second roller and walking roller area, the support frame is installed on upper bracket or the lower carriage, fixed mounting has on the support frame the mount pad, be provided with a plurality of interval arrangement on the mount pad first roller and a plurality of interval arrangement's second roller, adjacent two be provided with one between the first roller the second roller, be provided with one between two adjacent second rollers first roller, the arrangement interval direction of first roller and second roller is along the axis direction of pipeline, and each the outside of first roller and each second roller is around being equipped with the walking roller area, the walking roller area can laminate in the outer peripheral face of pipeline.
Further, preferably, the axes of the first roller and the axes of the second roller are arranged in a non-parallel manner, the first roller and the second roller are arranged in an inclined manner, so that a deformable adapting area is arranged between the first roller and the second roller, the walking roller belt can be stretched tightly under the extrusion of the pipeline and stretches into the deformable adapting area, the walking roller belt adopts an elastic belt structure, at least one of the first roller and/or the at least one of the second roller is in driving connection with the driving motor through a transmission mechanism, and the driving motor is fixed on the supporting frame through a supporting plate.
Further, preferably, an angle between the axis of the first roller and the axis of the second roller is 135-175 °.
Further, as the preference, first detector and second detector all include detection control main part seat, articulated arm, swing guide holder, extension arm, cover, detection sensing inductive head, detection control main part seat is connected on upper bracket or lower carriage, adopt the torsional spring rotation to be connected with on the detection control main part seat the articulated arm, the fixed swing guide holder that is provided with on the articulated arm, swing guide holder with guide sliding fit between the detection control main part seat, the fixed extension arm that is provided with of tip of articulated arm or swing guide holder, be provided with on the extension arm the cover, be provided with in the cover the position that detects the sensing inductive head is provided with the opening, still be provided with the support card on the cover, the both ends that support the roller bearing was adopted rotatable setting to be in on the support card, the torsional spring constructs to make the support roller bearing on the extension arm laminating in the pipeline surface.
Further, preferably, the detection control main body seat is further provided with a swinging shaft, and the swinging shaft is connected to the upper bracket or the lower bracket so as to drive the detection control main body seat to swing through the swinging shaft; the gas collecting sleeve is detachably clamped on the upper support and the lower support, the gas collecting sleeve is of two detachable semicircular structures, the two semicircular structures are buckled into an integral cylinder structure, the inner diameter of the integral cylinder structure is larger than the outer diameter of a pipeline to be detected, the gas collecting sleeve is located on the front side of the walking direction, and the first detector and the second detector are located in the gas collecting cylinder.
The invention has the following advantages: compared with the same type of equipment, the gas leakage detection device for natural gas pipeline transportation has the following advantages:
(1) According to the gas leakage detection device for natural gas pipeline transportation, the upper travelling mechanism and the lower travelling mechanism are arranged, so that the leakage of a gas pipeline can be automatically detected, meanwhile, the first detector and the second detector are positioned on the two radial sides of the pipeline, and when in detection, the detection ends of the first detector and the second detector can be arranged in a reciprocating manner, so that the detection precision and the reliability can be effectively improved, and the detection range is improved;
(2) The end sides of the first detector and the second detector are provided with supporting rollers which can rotate around the axis of the first detector and the second detector, and the supporting rollers can relatively roll in cooperation with the outer surface of the pipeline, so that the moving stability of the first detector and the second detector can be effectively improved, the reliability of the first detector and the second detector in detection is ensured, the shaking is reduced, and the service life is prolonged;
(3) The upper travelling mechanism and the lower travelling mechanism comprise a supporting frame, a mounting support, a first roll shaft, a second roll shaft and a travelling roll belt, wherein the axes of the first roll shaft and the second roll shaft are arranged in a non-parallel manner, and the travelling roll belt can be tightly expanded under the extrusion of a pipeline and stretches into the deformable adaptation area, so that the travelling stability and fluency of the upper travelling mechanism and the lower travelling mechanism can be effectively ensured, and the phenomenon that the travelling roll belt rolls circumferentially on the pipeline is reduced;
(4) Through setting up the gas collection sleeve, two the gas collection sleeve lock of semicircle ring structure is a whole cylinder structure, the gas collection sleeve is located the front side of walking direction, and first detector and second detector are located in the gas collection tube, effectively reduce the influence of external environment to detecting, establish the arrangement of gas collection through the cover, can effectually improve detection accuracy.
Drawings
FIG. 1 is a schematic diagram of the front view of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the front view of the lower running gear of the present invention;
FIG. 3 is a schematic diagram of the structure of the first detector or the second detector of the present invention;
fig. 4 is a schematic structural view of another embodiment of the present invention.
Detailed Description
The following detailed description of the present invention, taken in conjunction with fig. 1-4, clearly and completely describes the technical solutions of embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a gas leakage detection device for natural gas pipeline transportation through improvement, which comprises an upper bracket 1, a lower bracket 2, an elastic connecting column 7, a first detector 6, a second detector 3, an upper traveling mechanism 9 and a lower traveling mechanism 4, wherein the upper bracket 1 and the lower bracket 2 are detachably connected, the elastic connecting column 7 is arranged on the upper bracket and the lower bracket in a connecting way, the upper traveling mechanism 9 is arranged on the upper bracket, the lower traveling mechanism 4 is arranged on the lower bracket, the elastic connecting column can be arranged in a telescopic way in the connecting direction between the upper bracket and the lower bracket, the first detector is arranged on the upper traveling mechanism, the second detector is arranged on the lower traveling mechanism, the upper bracket and the lower bracket are respectively sleeved on two radial sides of a pipeline 9 to be detected, the upper traveling mechanism and the lower traveling mechanism can enable the device to travel along the extending direction of the pipeline, the first detector and the second detector are positioned on the two radial sides of the pipeline, and the first detector and the second detector can swing at the first detector and the second detector 6 can swing at the detection end and the second detector can swing.
The end sides of the first detector and the second detector are provided with supporting rollers 21, the supporting rollers 21 can rotate around the axis of the supporting rollers, and the supporting rollers can relatively roll in cooperation with the outer surface of the pipeline.
The upper support is symmetrically provided with two elastic connecting columns 7, the lower support is symmetrically provided with two elastic connecting columns 7, and the elastic connecting columns on the upper support and the elastic connecting columns on the lower support are symmetrically arranged.
The upper bracket with the tip of the junction of lower carriage is all integrative to be provided with connector 10, the connector of upper bracket with adopt bolt or block to connect between the connector of lower carriage, go up running gear and running gear structure down the same, just go up running gear with the equal elastically deformable's of one end of running gear and pipeline contact sets up down, so that go up running gear and running gear down can closely laminating contact the pipeline, go up running gear and running gear down and all adopt respective driving motor 5 drive.
The driving motor 5 is controlled by a controller, and the controller can control the driving motor of the upper travelling mechanism and the driving motor of the lower travelling mechanism to synchronously or asynchronously move.
The upper traveling mechanism and the lower traveling mechanism comprise a supporting frame 11, a mounting support 14, a first roller shaft 15, a second roller shaft and a traveling roller belt 16, the supporting frame is mounted on the upper support or the lower support, the mounting support is fixedly mounted on the supporting frame, a plurality of spaced-apart second roller shafts 15 and a plurality of spaced-apart second roller shafts are arranged on the mounting support, one second roller shaft is arranged between every two adjacent first roller shafts 15, one first roller shaft is arranged between every two adjacent second roller shafts, the arrangement interval direction of the first roller shafts and the second roller shafts is along the axial direction of a pipeline, the traveling roller belts are respectively wound on the outer sides of the first roller shafts and the outer sides of the second roller shafts, and the traveling roller belts can be attached to the outer peripheral surfaces of the pipeline.
The axis of the first roller shaft and the axis of the second roller shaft are arranged in a non-parallel manner, the first roller shaft and the second roller shaft are arranged in an inclined manner, so that a deformable adaptation area is arranged between the first roller shaft and the second roller shaft, the walking roller belt can be stretched tightly under the extrusion of a pipeline and stretches into the deformable adaptation area, the walking roller belt 16 adopts an elastic belt structure, at least one first roller shaft and/or at least one second roller shaft is in driving connection with the driving motor through a transmission mechanism 13, and the driving motor 5 is fixed on the support frame through a support plate 12.
The included angle between the axis of the first roll shaft and the axis of the second roll shaft is 135-175 degrees.
The first detector and the second detector all include detection control main part seat, articulated arm 25, swing guide holder 19, extension arm 24, guard housing 22, detection sensing sensor head 23, detection control main part seat connects on upper bracket or lower carriage, adopt the torsional spring rotation to be connected with on the detection control main part seat articulated arm 25, the fixed setting of articulated arm 25 is provided with swing guide holder 19, swing guide holder 19 with guide sliding fit between the detection control main part seat, the fixed extension arm 24 that is provided with of tip of articulated arm or swing guide holder, be provided with on the extension arm 24 guard housing 22, be provided with in the guard housing detection sensing sensor head, the guard housing is covered and is corresponded the position of detection sensing sensor head is provided with the opening, still be provided with on the guard housing and support the card 20, the both ends of supporting roller 21 adopt the rotatable setting of bearing to be in on the card 20, the torsional spring constructs so that the support roller on the extension arm is laminated in the pipeline surface.
The detection control main body seat is also provided with a swinging shaft 18, and the swinging shaft 18 is connected to the upper bracket or the lower bracket so as to drive the detection control main body seat to swing through the swinging shaft; as another embodiment, the gas collecting device further comprises a gas collecting sleeve 17, the gas collecting sleeve 17 is detachably clamped on the upper bracket and the lower bracket, the gas collecting sleeve is of two detachable semicircular structures, the gas collecting sleeve of two semicircular structures is buckled into a whole cylindrical structure, the inner diameter of the whole cylindrical structure is larger than the outer diameter of a pipeline to be detected, the gas collecting sleeve is positioned on the front side of the walking direction, and the first detector and the second detector are positioned in the gas collecting cylinder.
The basic principle and main characteristics of the invention and the advantages of the invention are shown and described above, standard parts used by the invention can be purchased from market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolt rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the description is omitted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a leak gas detection device for natural gas pipeline carries, its includes upper bracket, lower carriage, elastic connection post, first detector, second detector, go up running gear and running gear down, wherein, upper bracket with the detachable connection between the lower carriage, upper bracket is gone up and the lower carriage is gone up and is all connected and be provided with elastic connection post, be provided with on the upper bracket go up running gear, be provided with on the lower carriage down running gear in the direction of connection between upper bracket and the lower carriage the elastic connection post can flexible setting, be provided with on the upper running gear first detector, be provided with on the running gear down the second detector, upper bracket and lower carriage cover respectively are established in the radial both sides of waiting to detect the pipeline, go up running gear and running gear down and can make the device walk along the extending direction of pipeline and remove, first detector and second detector are located the radial both sides of pipeline, and during the detection, first detector and the setting that second detector can be swung to the end of detecting;
the end sides of the first detector and the second detector are provided with supporting rollers which can rotate around the axis of the first detector and the second detector, and the supporting rollers can relatively roll in a matched mode with the outer surface of the pipeline;
the upper traveling mechanism and the lower traveling mechanism comprise a support frame, a mounting support, a first roll shaft, a second roll shaft and a traveling roll belt, the support frame is arranged on the upper support or the lower support, the mounting support is fixedly arranged on the support frame, a plurality of first roll shafts which are arranged at intervals and a plurality of second roll shafts which are arranged at intervals are arranged on the mounting support, one second roll shaft is arranged between every two adjacent first roll shafts, one first roll shaft is arranged between every two adjacent second roll shafts, the arrangement interval direction of the first roll shafts and the second roll shafts is along the axial direction of a pipeline, the outside of each first roll shaft and each second roll shaft is wound with the traveling roll belt, and the traveling roll belt can be attached to the outer peripheral surface of the pipeline;
the axes of the first roll shafts and the axes of the second roll shafts are arranged in a non-parallel manner, the first roll shafts and the second roll shafts are arranged in an inclined manner, so that a deformable adaptation area is arranged between the first roll shafts and the second roll shafts, the walking roll belts can be stretched tightly under the extrusion of a pipeline and extend into the deformable adaptation area, the walking roll belts adopt an elastic belt structure, the upper walking mechanism and the lower walking mechanism are driven by respective driving motors, at least one first roll shaft and/or at least one second roll shaft are connected with the driving motors in a driving manner by adopting a transmission mechanism, and the driving motors are fixed on the support frame by adopting support plates;
the included angle between the axis of the first roll shaft and the axis of the second roll shaft is 135-175 degrees;
the first detector and the second detector comprise a detection control main body seat, a hinged arm, a swinging guide seat, an extension arm, a protective housing and a detection sensing head, wherein the detection control main body seat is connected to an upper bracket or a lower bracket, the detection control main body seat is rotationally connected with the hinged arm by a torsion spring, the swinging guide seat is fixedly arranged on the hinged arm, the swinging guide seat is in guide sliding fit with the detection control main body seat, the extension arm is fixedly arranged at the end part of the hinged arm or the swinging guide seat, the protective housing is provided with the protective housing, the detection sensing head is arranged in the protective housing, an opening is formed in the protective housing corresponding to the position of the detection sensing head, a support card is further arranged on the protective housing, two ends of the support roller are rotatably arranged on the support card by a bearing, and the torsion spring is configured to enable the support roller on the extension arm to be attached to the outer surface of a pipeline;
the detection control main body seat is also provided with a swinging shaft which is connected to the upper bracket or the lower bracket so as to drive the detection control main body seat to swing through the swinging shaft; the gas collecting sleeve is detachably clamped on the upper support and the lower support, the gas collecting sleeve is of two detachable semicircular structures, the two semicircular structures are buckled into an integral cylindrical structure, the inner diameter of the integral cylindrical structure is larger than the outer diameter of a pipeline to be detected, the gas collecting sleeve is located on the front side of the walking direction, and the first detector and the second detector are located in the gas collecting sleeve.
2. A leak detection apparatus for natural gas pipeline transportation as defined in claim 1, wherein: the upper support is symmetrically provided with two elastic connecting columns, the lower support is symmetrically provided with two elastic connecting columns, and the elastic connecting columns on the upper support and the elastic connecting columns on the lower support are symmetrically arranged.
3. A leak detection apparatus for natural gas pipeline transportation as defined in claim 2, wherein: the upper bracket is connected with the connecting clamp of the lower bracket, the connecting clamp of the upper bracket is connected with the connecting clamp of the lower bracket by bolts or clamping, the upper travelling mechanism and the lower travelling mechanism are identical in structure, and one ends of the upper travelling mechanism and the lower travelling mechanism, which are in contact with a pipeline, are elastically deformable, so that the upper travelling mechanism and the lower travelling mechanism can be in close contact with the pipeline.
4. A leak detection apparatus for natural gas pipeline transportation as defined in claim 3, wherein: the driving motor is controlled by a controller, and the controller can control the driving motor of the upper travelling mechanism and the driving motor of the lower travelling mechanism to synchronously or asynchronously move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111043134.8A CN113606503B (en) | 2021-09-07 | 2021-09-07 | Air leakage detection device for natural gas pipeline transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111043134.8A CN113606503B (en) | 2021-09-07 | 2021-09-07 | Air leakage detection device for natural gas pipeline transportation |
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| CN113606503A CN113606503A (en) | 2021-11-05 |
| CN113606503B true CN113606503B (en) | 2023-09-01 |
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| CN202111043134.8A Active CN113606503B (en) | 2021-09-07 | 2021-09-07 | Air leakage detection device for natural gas pipeline transportation |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114135793B (en) * | 2021-11-09 | 2023-10-13 | 江苏耀坤液压股份有限公司 | Hydraulic oil pipe with self-checking function |
| CN115823504B (en) * | 2022-11-18 | 2023-10-31 | 江苏氟豪防腐科技有限公司 | Intelligent detection device is revealed to steel lining tetrafluoro pressure pipeline |
| KR102577205B1 (en) * | 2023-06-26 | 2023-09-11 | 조경의 | Apparatus for inspecting safety and hydraulic pressure of pipe |
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| US10520476B2 (en) * | 2016-07-05 | 2019-12-31 | Loenbro Inspection, LLC | Method for inspecting high density polyethylene pipe |
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| US9481082B1 (en) * | 2012-10-30 | 2016-11-01 | The Boeing Company | Apparatus for automated maintenance of aircraft structural elements |
| CN207162142U (en) * | 2017-09-25 | 2018-03-30 | 南京驰新科技有限责任公司 | Crawl frame |
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