CN111103102B - Steel gas pipeline inner weld joint rapid detection device - Google Patents
Steel gas pipeline inner weld joint rapid detection device Download PDFInfo
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- CN111103102B CN111103102B CN202010011600.3A CN202010011600A CN111103102B CN 111103102 B CN111103102 B CN 111103102B CN 202010011600 A CN202010011600 A CN 202010011600A CN 111103102 B CN111103102 B CN 111103102B
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- gas pipeline
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- height adjusting
- reel
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- 238000001514 detection method Methods 0.000 title claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 48
- 238000005259 measurement Methods 0.000 claims description 31
- 238000003825 pressing Methods 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 230000009193 crawling Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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Classifications
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- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2823—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pigs or moles traveling in the pipe
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- 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
Abstract
The invention relates to a steel gas pipeline inner welding seam rapid detection device, which comprises a detection assembly which is placed in a gas pipeline and can move in the gas pipeline along the pipeline axis, wherein the detection assembly comprises an air pump and an air faucet which is communicated with the air pump and is just opposite to the inner wall of the gas pipeline, one end of the gas pipeline is provided with a bracket, a reel is rotatably connected on the bracket, the rotating axis of the reel is vertical to the axis of the gas pipeline, a connecting wire is wound on the reel and is fixedly connected with the detection assembly, a measuring part is arranged on the bracket and comprises a measuring gear which is rotatably connected with the bracket and a measuring rack which is meshed with the measuring gear, the measuring gear and the reel axis are superposed and synchronously rotated, two ends of the measuring rack penetrate through the bracket and are in sliding fit with the bracket, one end of the measuring rack is aligned with the air faucet, and an air tightness detection part is sleeved at the welding connection position of the gas pipeline, the invention has the effect of improving the detection precision of the welding seam.
Description
Technical Field
The invention relates to the technical field of weld joint detection, in particular to a steel gas pipeline inner weld joint rapid detection device.
Background
The gas pipeline is used for carrying the gas, in order to improve the transport distance of gas and reduce processing manufacturing cost, often need to carry out welding with many gas pipelines and link to each other, and in order to improve gas pipeline's gas tightness, adjacent gas pipeline need carry out interior welding in the inner wall position department of concatenation department when the welding. After the welding of the gas pipeline is completed, the gas tightness of the welding seam needs to be detected so as to ensure the safety of gas delivery.
The prior Chinese patent with reference to publication number CN209400475U discloses a pipeline inner wall circumferential weld detection device, which comprises a detection probe for detecting the inner wall of a pipeline, a rotating mechanism for driving the detection probe to swing left and right on the inner wall of the pipeline, and a crawling mechanism for driving the detection probe to move linearly on the inner wall of the pipeline; the detection probe comprises a framework body, the framework body is provided with a first winding part and a second winding part, the upper side edge of the first winding part and the upper side edge of the second winding part are both curved edges, and the upper side edge of the first winding part and the upper side edge of the second winding part are respectively parallel to the inner wall of the pipeline; the crawling mechanism comprises a base, a traveling wheel fixed below the base and a second motor for driving the traveling wheel to linearly move on the inner wall of the pipeline; the rotating mechanism comprises a rotating disk and a first motor for driving the rotating disk to swing left and right. The utility model discloses a test probe is curved surface detection coil, vertical placing during the detection, and the coil is bent the limit just to the pipe inner wall and parallel with the pipe inner wall, can effectively increase detection area.
The above prior art solutions have the following drawbacks: when the detection device is used, the whole detection device needs to be sent into a pipeline through the crawling mechanism, but the detection device cannot be accurately sent to the position right opposite to the welding line due to the fact that the welding line is located at the deep position inside the pipeline, and therefore the detection precision of the welding line is poor.
Disclosure of Invention
The invention aims to provide a device for quickly detecting a welding line in a steel gas pipeline, which achieves the effect of improving the detection precision of the welding line.
The technical purpose of the invention is realized by the following technical scheme:
a steel gas pipeline inner weld joint rapid detection device comprises a detection component which is placed in a gas pipeline and can move in the gas pipeline along the pipeline axis, the detection component comprises an air pump and an air tap which is communicated with the air pump and is just opposite to the inner wall of the gas pipeline, one end of the gas pipeline is provided with a bracket, a reel is rotatably connected on the bracket, the rotating axis of the reel is vertical to the axis of the gas pipeline, and the reel is wound with a connecting wire, the connecting wire is fixedly connected with the detection assembly, the support is provided with a measurement piece, the measurement piece comprises a measurement gear which is rotatably connected with the support and a measurement rack which is meshed with the measurement gear, the measurement gear and the reel axis coincide and synchronously rotate, two ends of the measurement rack penetrate through the support and are in sliding fit with the support, one end of the measurement rack is aligned with the air faucet, and the welding connection position of the gas pipeline is sleeved with an air tightness detection piece.
Through the technical scheme, when the gas tightness detection is carried out to the welding position of gas pipeline as required, at first send detecting element into inside the gas pipeline, the connecting wire is fixed with detecting element this moment, along with detecting element moves along the axis direction of gas pipeline, detecting element pulling connecting wire, make the connecting wire unreel from the take-up pulley, the take-up pulley is pulled by the connecting wire and takes place to rotate simultaneously, the take-up pulley drives and measures gear revolve, measure gear drives engaged with rack translation, rack relatively movable support slides, when detecting element removed to inside weld position department, high-pressure gas that the air pump produced beats the inner wall to the gas pipeline through the air cock, the gas tightness of inside weld can be detected to the gas tightness detecting element, and then realize the detection of welding good or bad. Because during initial position, the tip of measuring the rack is just right with the air cock, consequently when the tip of rack reachd welding seam position department, the detection subassembly that corresponds also can reachd welding seam position department, consequently detection subassembly's removal condition can be judged through the horizontal slip of rack, improves the accuracy that detection subassembly removed to interior welding seam position, and then improves the precision that detects.
The present invention in a preferred example may be further configured to: one end of the measuring rack, which deviates from the detection assembly, is detachably connected with an extension rack.
Through the technical scheme, when the length of the gas pipeline is long, the end part of the measuring rack cannot extend to the position of the inner welding seam, the extending rack can be installed at one end, deviating from the detecting component, of the measuring rack, so that the end part of the measuring rack can smoothly reach the position of the inner welding seam, the detecting component can be guaranteed to smoothly move to the position of the inner welding seam inside the gas pipeline, and the precision of gas tightness detection is indirectly improved.
The present invention in a preferred example may be further configured to: the end part of the extension rack close to the measurement rack is fixedly provided with an insertion block, and a slot for inserting the insertion block is formed in the position of the measurement rack opposite to the insertion block.
Through above-mentioned technical scheme, when the installation extends the rack, insert the slot with the inserted block to make the installation compactness of extension rack and measurement rack higher, when guaranteeing to mesh with the measurement gear, the junction of extension rack and measurement rack can not produce the interference.
The present invention in a preferred example may be further configured to: the extension rack and the measuring rack are opposite to each other, the cross section of the end part of the extension rack is fixedly connected with the butt block, the cross section of the end part of the extension rack is smaller than the size of the end part of the extension rack, the insertion block is fixed with the butt block corresponding to the extension rack, the insertion groove is formed in the butt block corresponding to the measuring rack, the butt block is provided with a C-shaped plate in a clamping mode, and the C-shaped plate and the two butt blocks are fixed through bolts.
Through the technical scheme, after extension rack and measurement rack carry out fixed connection through the grafting cooperation of cutting with the slot, its stability is relatively poor, consequently, the tip at extension rack and measurement rack sets up the butt piece, make the two butt each other, then go into the surface of butt piece with C shaped plate card, and it is fixed with C shaped plate and two butt pieces to utilize the bolt, thereby make two butt piece reciprocal anchorages, and then make measurement rack and extension rack form effective stable fixed connection, the fixed stability of measurement rack and extension rack has been improved greatly.
The present invention in a preferred example may be further configured to: the gas tightness detection piece comprises two half rings sleeved on a gas pipeline, the two half rings are hollow inside and detachably connected through bolts, and a pressure measuring instrument stretching into the half rings is inserted in each half ring.
Through the technical scheme, when the gas tightness of the inner weld is detected, the two semi-ring sleeves are arranged at the welding position of the gas pipeline, then the two semi-rings are fixed through the bolts, so that a sealed area is formed between the hollow area inside the two semi-rings and the outer surface of the gas pipeline, and if the gas tightness of the welding position is poor, gas emitted through the gas nozzle can enter the semi-rings along the gap of the welding position, so that the gas can be detected by the pressure measuring instrument, and the poor sealing performance can be judged.
The present invention in a preferred example may be further configured to: the height adjusting device is characterized in that a height adjusting groove is formed in the support, a height adjusting block capable of sliding along the vertical direction is arranged in the height adjusting groove, the measuring gear and the take-up pulley are rotatably connected with the height adjusting block, the measuring rack is in sliding fit with the height adjusting block, and a height adjusting cylinder capable of driving the height adjusting block to slide up and down is fixedly arranged at the top end of the support.
Through above-mentioned technical scheme, because when measuring the gas tightness of gas pipeline, the test height of pipeline is different, and pipeline weight is too big, is difficult to move, consequently can drive high adjusting block up-and-down motion in the height adjustment inslot through the height adjustment cylinder, and then adjusts detecting element's height to inside detecting element puts into gas pipeline smoothly, improve gas pipeline's detection convenience.
The present invention in a preferred example may be further configured to: the fixed cover in circumference face of air pump is equipped with the installation cover, is provided with the running gear of drive determine module along the axis motion of gas pipeline on the installation cover.
Through above-mentioned technical scheme, the installation cover can install the protection to the air pump to for running gear provides the mounted position, thereby make determine module can be inside along axial motion at the gas pipeline, ensure that determine module can arrive interior welding seam position smoothly.
The present invention in a preferred example may be further configured to: the walking mechanism comprises a pressing cylinder fixed with the mounting sleeve, a walking crawler belt is fixedly connected to the end portion of a piston rod of the pressing cylinder, and the walking crawler belt is abutted to the inner wall of the gas pipeline.
Through above-mentioned technical scheme, when the gas pipeline internal diameter that needs detected is different, can stretch out and draw back through the piston rod that compresses tightly the cylinder, adjust the position of walking track for the butt can be stabilized at the inner wall of gas pipeline to the walking track, and then makes detecting element can be applicable to the gas pipeline that detects different pipe diameters, enlarges application scope.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the measurement rack advancing synchronously with the detection assembly is arranged outside the gas pipeline, so that the walking position of the detection assembly in the gas pipeline can be visually observed, the position accuracy of gas tightness detection is improved, and the detection precision is improved;
2. the end, deviating from the detection assembly, of the measuring rack is detachably connected with the extending rack, so that the gas pipeline can be smoothly detected when being long;
3. through setting up height adjustment piece and height adjustment cylinder for detection assembly's height-adjustable, and then convenience is higher when making the detection.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic view of the present embodiment for emphasizing the structure of the air-tightness detecting member;
FIG. 3 is a schematic view of the gas pipeline with the view to emphasizing the structure of the detection assembly;
fig. 4 is a partially exploded view aimed at emphasizing the connection relationship of the measuring rack and the extension rack.
Reference numerals: 1. a support; 11. a height adjustment groove; 12. a height adjusting block; 13. a height adjustment cylinder; 2. a reel; 21. a connecting wire; 3. a measuring member; 31. measuring the gear; 32. measuring a rack; 4. an extension rack; 5. a butting block; 51. a slot; 52. inserting a block; 53. a C-shaped plate; 6. an air-tightness detecting member; 61. a half ring; 62. a pressure gauge; 7. a detection component; 71. an air pump; 711. installing a sleeve; 72. an air tap; 8. a traveling mechanism; 81. a pressing cylinder; 82. a walking crawler belt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a quick detection device of steel gas pipeline inner weld, combine figure 1 and figure 2, including setting up in the support 1 of gas pipeline opening one end position department, it is provided with reel 2 to rotate on the support 1, the axis of rotation of reel 2 is perpendicular with the axis of gas pipeline, it has connecting wire 21 to wind on reel 2's the circumference face, and the tip fixedly connected with of connecting wire 21 can be at the inside detection element 7 who removes of gas pipeline, still be provided with measuring part 3 on the support 1, measuring part 3 includes with support 1 normal running fit's measuring gear 31 and with the measuring rack 32 of measuring gear 31 meshing, measuring gear 31 and the coaxial rotation of reel 2, measuring rack 32 and support 1 sliding fit, and measuring rack 32 is located the gas pipeline outside and is parallel with the gas pipeline. In the initial position, the end of the measuring rack 32 facing the inner weld of the gas pipe is flush with the detection assembly 7. The surface cover of gas pipeline inside weld position is equipped with gas tightness detection piece 6, consequently when carrying out the gas tightness detection, make inside 7 position gas pipelines of determine module, and walk inside gas pipeline, determine module 7 drives connecting wire 21 and unreels from reel 2, and then drive measurement gear 31 and rotate, measurement gear 31 drives and measure rack 32 level extension, when the tip of measuring rack 32 reachs inside weld position department, can deduce the position department that determine module 7 has also reachd the inside weld of pipeline correspondingly, consequently can judge determine module 7 in the inside position of pipeline through the position of measuring rack 32, it is more directly perceived reliable, and then the gas tightness detection precision has been improved. When the detection assembly 7 reaches the position of the inner welding seam, the air tightness detection is carried out by matching with the air tightness detection piece 6.
As shown in fig. 3, a height adjusting groove 11 is formed in the bracket 1, a height adjusting block 12 is arranged in the height adjusting groove 11 in a sliding manner along the vertical direction, the height adjusting block 12 is divided into two parts which are opposite to each other, the two parts of the height adjusting block 12 are fixed through a rotating shaft, the reel 2 and the measuring gear 31 are positioned between the two parts of the height adjusting block 12, the measuring gear 31 and the reel 2 are both in running fit with the height adjusting block 12, a vertically downward height adjusting cylinder 13 is fixedly arranged at the top end of the bracket 1, and the end of a piston rod of the height adjusting cylinder 13 extends into the height adjusting groove 11 and is fixedly connected with the height adjusting block 12. When the gas pipeline that needs to detect the gas tightness place the position higher or lower, can utilize height adjustment cylinder 13 to drive height adjusting block 12 and slide from top to bottom in height adjustment groove 11 to ensure height adjusting block 12 and the axial lead parallel and level of gas pipeline on vertical direction, improve the inside convenience of detecting element 7 entering gas pipeline, reduce detecting element 7 and gas pipeline's eccentric error simultaneously.
With reference to fig. 3 and 4, an end of the measuring rack 32 facing away from the gas pipeline is detachably connected with the extending rack 4, so as to ensure that the end of the measuring rack 32 can reach the inner weld position when the length of the gas pipeline is long. Specifically, the opposite ends of the extension rack 4 and the measurement rack 32 are fixedly connected with a butt block 5, the cross-sectional dimensions of the ends of the measurement rack 32 and the extension rack 4 are the same, the cross-sectional dimension of the butt block 5 is smaller than the cross-sectional dimensions of the ends of the measurement rack 32 and the extension rack 4, the end of the butt block 5 corresponding to the measurement rack 32 is provided with a slot 51, the end of the butt block 5 corresponding to the extension rack 4 is fixedly provided with an insert block 52 in plug fit with the slot 51, when the extension rack 4 and the measurement rack 32 are spliced with each other, the insert block 52 is inserted into the slot 51, and at the moment, the upper surfaces and two opposite vertical surfaces of the extension rack 4 and the measurement rack 32 are in a gap shape, a C-shaped plate 53 is clamped at the gap, the C-shaped plate 53 is made of an elastic material, so as to ensure that the C-shaped plate 53 can form a tight and reliable clamping fit with the extension rack 4 and the measurement rack 32, and form fixed connection through the counter bore bolt between C template and two butt joint pieces 5, after installation C shaped plate 53, the tip that extends rack 4 and measure the mutual concatenation of rack 32 is smooth transition form, has improved the installation stability that extends rack 4 greatly, can not cause interference and influence to the meshing of extending rack 4 and gear simultaneously.
As shown in fig. 3, the detecting assembly 7 includes an air pump 71, the air pump 71 is cylindrical, a mounting sleeve 711 is fixedly disposed on a circumferential surface of the air pump 71, the mounting sleeve 711 is also cylindrical, a plurality of air nozzles 72 (air pipes between the air nozzles 72 and the air pump 71 are omitted in the figure) are disposed on the circumferential surface of the air pump 71 in a communicating manner, the air nozzles 72 are disposed perpendicular to an axis of the gas pipeline, and a traveling mechanism 8 is disposed on the circumferential surface of the mounting sleeve 711 to ensure that the whole detecting assembly 7 can move inside the gas pipeline. When the gas tightness of the welding position of the gas pipeline is detected, the walking mechanism 8 drives the detection assembly 7 to move to the inner welding position, then the air pump 71 blows air towards the inner welding position through the air nozzle 72, when the inner welding quality is poor and a hole exists, the air blown out from the air nozzle 72 can penetrate out along the hole, enters the gas tightness detection piece 6 and obtains a detection result.
Referring back to fig. 2, the gas tightness detecting member 6 includes two half rings 61 sleeved at the welding position of the gas pipeline, the two half rings 61 are hollow and fixedly connected by bolts, so that the two half rings 61 can be tightly pressed on the outer wall of the gas pipeline, a pressure measuring instrument 62 extending into the half rings 61 is fixedly arranged on the half rings 61, when the gas tightness is detected, if there is a hole at the welding position, the gas blown out from the detecting component 7 can enter the inside of the half rings 61 along the hole, so as to be detected by the pressure measuring instrument 62, and the detection of the welding precision is realized.
As shown in fig. 3, the traveling mechanism 8 includes a plurality of pressing cylinders 81 fixedly connected to the circumferential surface of the mounting sleeve 711, piston rods of the pressing cylinders 81 are perpendicular to the inner wall of the gas pipeline, and the end portions of the piston rods of the pressing cylinders 81 are fixedly connected with the traveling crawler 82, specifically, the piston rods of the pressing cylinders 81 are fixed to the arm rods of the traveling crawler 82 to ensure the normal operation of the traveling crawler 82, and when the detection assembly 7 is placed inside the gas pipeline, the pressing cylinders 81 can drive the traveling crawler 82 to abut against the inner wall of the gas pipeline, thereby ensuring the smooth traveling of the traveling crawler 82 inside the pipeline.
The implementation principle of the embodiment is as follows: when the inner welding seam airtightness of the gas pipeline is detected, firstly, the height of the height adjusting block 12 is adjusted through the height adjusting cylinder 13, so that the height adjusting block 12 is opposite to the central axis of the gas pipeline in the vertical direction, then, the two half rings 61 are sleeved at the welding position of the gas pipeline and screwed down by bolts, then, the detection assembly 7 is placed in the pipeline, the walking mechanism 8 drives the detection assembly 7 to walk in the pipeline until the position of the inner welding seam is reached, the measurement rack 32 also moves synchronously in the process, when the end part of the measurement rack 32 reaches the welding position, the detection assembly 7 is predicted to also reach the welding position, at the moment, the walking mechanism 8 stops, the air pump 71 starts, air is blown towards the welding seam position through the air nozzle 72, when the welding seam is not tight and an air gap exists, the air flow blown out by the air nozzle 72 can enter the inner cavity of the half rings 61 along the air gap, and is detected by the pressure measuring instrument 62, and at this moment, the welding quality of the welding seam is judged to be in problem, and repair welding or re-welding is needed. Due to the arrangement of the measuring piece 3, the position of the detection assembly 7 in the pipeline can be observed in real time, the detection assembly 7 can be ensured to accurately reach the position of the inner welding seam, and the welding precision is further improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. The utility model provides a quick detection device of steel gas pipeline inner weld, includes that put into inside and follow mobilizable determine module (7) of pipeline axis in the gas pipeline of gas pipeline, its characterized in that: the detection assembly (7) comprises an air pump (71) and an air faucet (72) communicated with the air pump (71) and just opposite to the inner wall of the gas pipeline, a support (1) is arranged at one end of the gas pipeline, a reel (2) is rotatably connected onto the support (1), the rotating axis of the reel (2) is perpendicular to the axis of the gas pipeline, a connecting line (21) is wound on the reel (2), the connecting line (21) is fixedly connected with the detection assembly (7), a measuring part (3) is arranged on the support (1), the measuring part (3) comprises a measuring gear (31) rotatably connected with the support (1) and a measuring rack (32) meshed with the measuring gear (31), the measuring gear (31) is overlapped with the axis of the reel (2) and rotates synchronously, two ends of the measuring rack (32) penetrate through the support (1) and are in sliding fit with the support (1), one end of the measuring rack (32) is aligned with the air faucet (72), the welding connection position of the gas pipeline is sleeved with an air tightness detection piece (6);
one end of the measuring rack (32) departing from the detection component (7) is detachably connected with an extension rack (4); the gas tightness detection piece (6) comprises two half rings (61) sleeved on the gas pipeline, the two half rings (61) are hollow, the two half rings (61) are detachably connected through bolts, and a pressure measuring instrument (62) extending into the half rings (61) is inserted into the half rings (61);
the height adjusting device is characterized in that a height adjusting groove (11) is formed in the support (1), a height adjusting block (12) capable of sliding in the vertical direction is arranged in the height adjusting groove (11), the measuring gear (31) and the reel (2) are rotatably connected with the height adjusting block (12), the measuring rack (32) is in sliding fit with the height adjusting block (12), and a height adjusting cylinder (13) capable of driving the height adjusting block (12) to slide up and down is fixedly arranged at the top end of the support (1).
2. The steel gas pipeline inner weld joint rapid detection device according to claim 1, characterized in that: an inserting block (52) is fixedly arranged at the end part of the extension rack (4) close to the measuring rack (32), and a slot (51) for inserting the inserting block (52) is formed in the position, facing the inserting block (52), of the measuring rack (32).
3. The steel gas pipeline inner weld joint rapid detection device according to claim 2, characterized in that: the utility model discloses a butt joint piece of extension rack (4) and measurement rack (32) is less than butt piece (5) of tip size each other just to the equal fixedly connected with cross-sectional dimension of tip that extends rack (4) and is right, and insert piece (52) are fixed with butt joint piece (5) that extend rack (4) correspond, and slot (51) are seted up in butt joint piece (5) that measurement rack (32) correspond, and butt joint piece (5) go up the card and are equipped with C shaped plate (53), and C shaped plate (53) all pass through the bolt fastening with two butt joint pieces (5).
4. The steel gas pipeline inner weld joint rapid detection device according to claim 1, characterized in that: the gas pump is characterized in that a mounting sleeve (711) is fixedly sleeved on the circumferential surface of the gas pump (71), and a traveling mechanism (8) for driving the detection assembly (7) to move along the axis of the gas pipeline is arranged on the mounting sleeve (711).
5. The steel gas pipeline inner weld joint rapid detection device according to claim 4, characterized in that: the walking mechanism (8) comprises a pressing cylinder (81) fixed with the mounting sleeve (711), a walking crawler (82) is fixedly connected to the end portion of a piston rod of the pressing cylinder (81), and the walking crawler (82) is abutted to the inner wall of the gas pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011600.3A CN111103102B (en) | 2020-01-06 | 2020-01-06 | Steel gas pipeline inner weld joint rapid detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010011600.3A CN111103102B (en) | 2020-01-06 | 2020-01-06 | Steel gas pipeline inner weld joint rapid detection device |
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| CN111103102A CN111103102A (en) | 2020-05-05 |
| CN111103102B true CN111103102B (en) | 2021-12-07 |
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| CN203391887U (en) * | 2013-07-31 | 2014-01-15 | 四川瑞迪射线数字影像技术有限责任公司 | Circular construction and detection device for pipes |
| CN103645018A (en) * | 2013-12-05 | 2014-03-19 | 江苏新时代造船有限公司 | Fillet weld inflation test method |
| CN104457661A (en) * | 2014-04-01 | 2015-03-25 | 太原重工股份有限公司 | Detecting device capable of adjusting transmission gap and transmission gap adjusting mechanism |
| CN204556195U (en) * | 2015-03-27 | 2015-08-12 | 天津市卓阳无损检测有限公司 | A kind of pipeline girth weld air-flow the cannot-harm-detection device |
| CN107638991A (en) * | 2017-09-28 | 2018-01-30 | 高祥桐 | A kind of sealing device for internal diameter of the pipeline weld seam |
| CN107606387A (en) * | 2017-10-17 | 2018-01-19 | 北京理工大学珠海学院 | A kind of self-adapting pipe crawl device and pipe welding line detecting method |
| CN209198022U (en) * | 2018-12-21 | 2019-08-02 | 上海荆虹实业有限公司 | A kind of gas pipeline convenient for detection of pipeline damage position |
| CN209400475U (en) * | 2019-01-07 | 2019-09-17 | 仓信无损检测设备苏州有限公司 | Inner wall of the pipe circumference weld inspection device |
| CN209656634U (en) * | 2019-01-24 | 2019-11-19 | 南京卓为工程监理有限公司 | The ultrasound examination scanner of petroleum pipeline weld seam |
| CN209757463U (en) * | 2019-03-27 | 2019-12-10 | 武汉交通职业学院 | Measuring device convenient for observing draught of ship |
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