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CN104502380A - Nondestructive testing device for oil storage tanks - Google Patents

Nondestructive testing device for oil storage tanks Download PDF

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Publication number
CN104502380A
CN104502380A CN201410857696.XA CN201410857696A CN104502380A CN 104502380 A CN104502380 A CN 104502380A CN 201410857696 A CN201410857696 A CN 201410857696A CN 104502380 A CN104502380 A CN 104502380A
Authority
CN
China
Prior art keywords
storage tank
support body
petroleum storage
trailer
supporting leg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410857696.XA
Other languages
Chinese (zh)
Inventor
李锋
鲁艳秋
曾昭群
吴瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG HUATAI DETECTION TECHNOLOGY Co Ltd
Original Assignee
GUANGDONG HUATAI DETECTION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUANGDONG HUATAI DETECTION TECHNOLOGY Co Ltd filed Critical GUANGDONG HUATAI DETECTION TECHNOLOGY Co Ltd
Priority to CN201410857696.XA priority Critical patent/CN104502380A/en
Publication of CN104502380A publication Critical patent/CN104502380A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a nondestructive testing device for oil storage tanks. The nondestructive testing device comprises a travelling mechanism, a lifting mechanism and a rack, wherein the travelling mechanism comprises a trailer, and a mounting groove, a transmission wheel and a driving device are arranged on the trailer; the driving device is used for driving the transmission wheel to rotate. The trailer can walk along the side wall of the oil storage tank, so that an X-ray machine can move along the circumference of the oil storage tank; an electric hoist comprises a controller for controlling the electric hoist, and an operator can hold the controller with hands to control the rack to rise and fall, so that the X-ray machine can move along the axis direction of the oil storage tank; by adjusting the lengths of support legs, the horizontal position of the rack can be adjusted, so that the X-ray machine can be adjusted along the radial direction of the oil storage tank; a distance between the X-ray machine and the side wall of the oil storage tank is changed, so that the transillumination focus length of the X-ray machine can be adjusted. Accordingly, the position of the X-ray machine can be conveniently adjusted without frequent replacing of a support.

Description

The cannot-harm-detection device of petroleum storage tank
Technical field
The present invention relates to the cannot-harm-detection device of petroleum storage tank.
Background technology
The SPR (strategic petroleum reserve) storehouse of current domestic a large amount of construction, all adopts single tank to hold the large-scale storage tank of more than ten ten thousand steres, single tank design more than internal diameter 80m, height more than 22m.The welding process of large-scale storage tank adopts brand-new welding technology, and wallboard cross joint adopts electro-gas (enclosed) welding, and wallboard girth joint then adopts Lincoln weld.
The Non-Destructive Testing of petroleum storage tank is generally detected by X-ray production apparatus, when detecting weld seam, needs the position adjusting X-ray production apparatus continually, and often encloses the word of the T up and down weld seam of wallboard and often clap a sheet and all will adjust equipment and focus.In prior art, when Non-Destructive Testing, X-ray production apparatus is fixed on inner side or the outside of petroleum storage tank by the framing scaffold that general is traditional and support fixed equipment, the position of such adjustment X-ray production apparatus is comparatively difficult, need operating personnel to carry out work high above the ground, the position of manual dismounting and traversing carriage adjustment X-ray production apparatus, and traditional support cannot adjust length, when adjusting the distance of X-ray production apparatus and petroleum storage tank sidewall, need to change support continually.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to the cannot-harm-detection device providing a kind of petroleum storage tank, can adjust the position of X-ray production apparatus easily, without the need to changing support continually.
For achieving the above object, the present invention adopts following technical scheme:
The cannot-harm-detection device of petroleum storage tank, comprises travel mechanism, elevating mechanism and frame; Travel mechanism comprises trailer, trailer is provided with mounting groove, power wheel and drive unit, Open Side Down and sidewall upper portion for clamping petroleum storage tank for mounting groove, power wheel is arranged at mounting groove upper end, power wheel rolls with the upper surface of petroleum storage tank sidewall and coordinates, and drive unit rotates for driving power wheel; Elevating mechanism comprises and is arranged on the electric block on trailer and the controller for controlling electric block; Frame comprises support body and length-adjustable many supporting legs, many supporting legs are connected to support body side, support body is connected on electric block and also can moves up and down under the drive of electric block, support body inside is provided with X-ray production apparatus, and supporting leg is provided with to being located at petroleum storage tank sidewall surfaces and rolling the support member coordinating or be slidably matched with Oil Tank sidewall surfaces away from one end of support body.
Supporting leg is biased toward the outside away from support body near one end of support body to the one end away from support body.
Supporting leg comprises the first supporting leg and the second supporting leg, and the first supporting leg is provided with chute, and the second supporting leg is slidably mounted in chute.
Support member is be arranged on the universal wheel of supporting leg away from support body one end.
Travel mechanism also includes the suspension arm that is fixed on trailer side, and electric block is fixedly connected with suspension arm by hanging cable, and hanging cable is positioned on suspension arm by pin.
Diagonal brace is provided with between suspension arm and trailer.
Have an inner space in support body, X-ray production apparatus is fixed in this inner space, and support body is provided with the window supplying the X ray of X-ray production apparatus injection to pass, the side that support body is provided with window is also provided with focusing lamp.
Beneficial effect of the present invention is:
Compared to prior art, trailer of the present invention can be walked along the sidewall of petroleum storage tank, thus X-ray production apparatus can be moved along the circumference of petroleum storage tank; Electric block comprises the controller for controlling electric block, and the hand-holdable controller of operating personnel controls the lifting of support body, thus X-ray production apparatus can be moved along the axis direction of petroleum storage tank; By regulating the length of supporting leg, the horizontal level of support body can be regulated, thus X-ray production apparatus can be regulated along the radial direction of petroleum storage tank, change the distance of the sidewall of X-ray production apparatus and petroleum storage tank, thus the transillumination focal length of adjustment X-ray production apparatus.Like this, the position of X-ray production apparatus can be adjusted easily, and without the need to changing support continually.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of frame of the present invention;
Wherein: 10, travel mechanism; 11, trailer; 111, mounting groove; 112, power wheel; 12, suspension arm; 13, diagonal brace; 20, elevating mechanism; 21, electric block; 211, suspension hook; 212, controller; 213, hanging cable; 214, pin; 215, control cables; 30, frame; 31, support body; 311, hanger; 312, window; 32, supporting leg; 321, support member; 40, sidewall.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further:
As shown in Figure 1, 2, the cannot-harm-detection device of petroleum storage tank of the present invention comprises travel mechanism 10, elevating mechanism 20 and frame 30, travel mechanism 10 comprises trailer 11, trailer 11 is provided with mounting groove 111, power wheel 112 and drive unit, Open Side Down for mounting groove 111, for being installed on sidewall 40 upper end of petroleum storage tank, power wheel 112 is arranged at mounting groove 111 upper end, power wheel 112 rolls with the upper surface of petroleum storage tank sidewall 40 and coordinates, and drive unit rotates for driving power wheel 112, elevating mechanism 20 comprises electric block 21 and controller 212, electric block 21 is arranged on trailer 11, controller 212 is for controlling electric block 21, frame 30 comprises the many supporting legs 32 of support body 31 and adjustable in length, many supporting legs 32 are connected to the side of support body 31, support body 31 is connected on electric block 21 and also can moves up and down under the drive of electric block 21, support body 31 inside is provided with X-ray production apparatus, supporting leg 32 is provided with to being located at petroleum storage tank sidewall 40 surface and the support member 321 coordinating or be slidably matched with Oil Tank sidewall 40 surface scrolls away from one end of support body 31.
The cannot-harm-detection device of petroleum storage tank of the present invention is than being more suitable for the petroleum storage tank detecting vertical cylinder type.When carrying out the Non-Destructive Testing of petroleum storage tank, the mounting groove 111 of trailer 11 is installed on sidewall 40 upper end of petroleum storage tank, power wheel 112 is connected on the upper surface of sidewall 40 of petroleum storage tank, electric block 21 to be arranged on trailer 11 and to be arranged at the inner side of petroleum storage tank, support body 31 to be connected on electric block 21 and to be positioned at the inner side of petroleum storage tank, support member 321 is on the sidewall 40 being located at petroleum storage tank, and it is inner that X-ray production apparatus is installed on support body 31.When detecting, driving power wheel 112 to rotate by drive unit, trailer 11 can be walked along the sidewall 40 of petroleum storage tank, thus drive X-ray production apparatus to move along the circumference of petroleum storage tank; The hand-holdable controller 212 of operating personnel controls the lifting of support body 31, thus drives X-ray production apparatus to move along the axis direction of petroleum storage tank; By regulating the length of supporting leg 32, the horizontal level of support body 31 can be regulated, thus X-ray production apparatus can be regulated along the radial direction of petroleum storage tank, change the distance of the sidewall 40 of X-ray production apparatus and petroleum storage tank, thus the transillumination focal length of adjustment X-ray production apparatus.
When needing to detect the outside of petroleum storage tank, electric block 21 to be arranged on trailer 11 and to be arranged at the outside of petroleum storage tank, and support body 31 to be connected on electric block 21 and to be positioned at the outside of petroleum storage tank, like this, just can detect the outside of sidewall 40.
Trailer 11 of the present invention can be walked along the sidewall 40 of petroleum storage tank, thus X-ray production apparatus can be moved along the circumference of petroleum storage tank; Electric block 21 comprises the controller 212 for controlling electric block 21, and the hand-holdable controller 212 of operating personnel controls the lifting of support body 31, thus X-ray production apparatus can be moved along the axis direction of petroleum storage tank; By regulating the length of supporting leg 32, the horizontal level of support body 31 can be regulated, thus X-ray production apparatus can be regulated along the radial direction of petroleum storage tank, change the distance of the sidewall 40 of X-ray production apparatus and petroleum storage tank, thus the transillumination focal length of adjustment X-ray production apparatus.Like this, the position of X-ray production apparatus can be adjusted easily, and without the need to changing support continually.
Preferably, travel mechanism 10 also comprises suspension arm 12, and suspension arm 12 to be fixedly arranged on trailer 11 and to be positioned at the side of trailer 11, and suspension arm 12 is positioned at the inner side of petroleum storage tank, and electric block 21 is fixedly arranged on suspension arm 12.
Again preferably, between suspension arm 12 and trailer 11, be provided with diagonal brace 13, the intensity of suspension arm 12 can be increased like this.
Further, electric block 21 is fixedly connected with suspension arm 12 by hanging cable 213, and hanging cable 213 is positioned on suspension arm 12 by pin 214, can prevent hanging cable 213 from sliding on suspension arm 12 like this.
As other embodiment, the cannot-harm-detection device also can not arrange suspension arm 12, and electric block 21 is directly fixed on trailer 11.
Further, electric block 21 also comprises suspension hook 211, and support body 31 upper end is provided with the hanger 311 for being suspended on suspension hook 211, like this, is convenient to the installation of support body 31.
Further, have an inner space in support body 31, X-ray production apparatus is fixed in this inner space, the sidewall of support body 31 is provided with window 312, and window 312 passes for the X ray of X-ray production apparatus.
Further, controller 212 is connected to electric block 21 by control cables 215, controller 212 is for controlling the lifting of suspension hook 211, control cables 215 is arranged to obtain long enough, operating personnel just can control the lifting of suspension hook 211 at ground hand held controller 212, operating personnel, without the need to carrying out work high above the ground, improve the security of operating personnel.
Further, supporting leg 32 is biased toward the outside away from support body 31 near one end of support body 31 to the one end away from support body 31, like this, support body 31 can be made more firmly on the sidewall 40 being located at petroleum storage tank, because petroleum storage tank is arranged at beach more, such structure can strengthen the wind loading rating of the cannot-harm-detection device.
Further, support member 321 is for being arranged on the universal wheel of supporting leg 32 away from support body 31 one end, and universal wheel is connected on the sidewall 40 of petroleum storage tank, and like this, when trailer 11 moves, universal wheel can regulate direction of travel in a big way.As other embodiment, support member 321 also can be the miscellaneous part for coordinating or be slidably matched with Oil Tank sidewall 40 surface scrolls.
Further, supporting leg 32 comprises the first supporting leg and the second supporting leg, and the first supporting leg is provided with chute, and the second supporting leg is slidably mounted in chute, like this, by stretching out or the second supporting leg of retracting, can regulate the length of supporting leg 32.
Further, the side that support body 31 is provided with window 312 is also provided with focusing lamp, can be used for making the radiation center of X-ray production apparatus (i.e. focus) aim at subject, and focusing system can accurately be focused.
Preferably, focusing lamp adopts little infra-red flashlight, and be fixed on the center above window 312, this position should with window 312 center on same perpendicular line, and such focus effects is better.
Preferably, the quantity of suspension arm 12 has many, and many suspension arms 12 are disposed on the side of trailer 11,
The side of trailer 11 is installed with many suspension arms 12, every root suspension arm 12 is provided with an elevating mechanism 20, each elevating mechanism 20 is all hung with a frame 30.
When detecting, the suspension hook 211 of multiple elevating mechanism 20 can be adjusted on different height.Such as, when detecting the word weld seam of T up and down of sidewall 40 of petroleum storage tank, a upper T word weld seam of X-ray production apparatus focusing in two suspension arms 12 and two frames, 30, frame 30 can be set, the lower T word weld seam of an other focusing, eliminates the time alternately changed machine.
Or can be adjusted on identical height by the suspension hook 211 of multiple elevating mechanism 20, can hang multiple stage X-ray production apparatus when detecting large circumferential weld and carry out great-jump-forward shooting, efficiency increases simultaneously.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.

Claims (7)

1. the cannot-harm-detection device of petroleum storage tank, is characterized in that, comprises travel mechanism, elevating mechanism and frame; Travel mechanism comprises trailer, trailer is provided with mounting groove, power wheel and drive unit, Open Side Down and sidewall upper portion for clamping petroleum storage tank for mounting groove, power wheel is arranged at mounting groove upper end, power wheel rolls with the upper surface of petroleum storage tank sidewall and coordinates, and drive unit rotates for driving power wheel; Elevating mechanism comprises and is arranged on the electric block on trailer and the controller for controlling electric block; Frame comprises support body and length-adjustable many supporting legs, many supporting legs are connected to support body side, support body is connected on electric block and also can moves up and down under the drive of electric block, support body inside is provided with X-ray production apparatus, and supporting leg is provided with to being located at petroleum storage tank sidewall surfaces and rolling the support member coordinating or be slidably matched with Oil Tank sidewall surfaces away from one end of support body.
2. the cannot-harm-detection device of petroleum storage tank as claimed in claim 1, is characterized in that, supporting leg is biased toward the outside away from support body near one end of support body to the one end away from support body.
3. the cannot-harm-detection device of petroleum storage tank as claimed in claim 1, it is characterized in that, supporting leg comprises the first supporting leg and the second supporting leg, and the first supporting leg is provided with chute, and the second supporting leg is slidably mounted in chute.
4. the cannot-harm-detection device of petroleum storage tank as claimed in claim 1, it is characterized in that, support member is be arranged on the universal wheel of supporting leg away from support body one end.
5. the cannot-harm-detection device of petroleum storage tank as claimed in claim 1, it is characterized in that, travel mechanism also includes the suspension arm that is fixed on trailer side, and electric block is fixedly connected with suspension arm by hanging cable, and hanging cable is positioned on suspension arm by pin.
6. the cannot-harm-detection device of petroleum storage tank as claimed in claim 5, is characterized in that, be provided with diagonal brace between suspension arm and trailer.
7. the cannot-harm-detection device of petroleum storage tank as claimed in claim 1, it is characterized in that having an inner space in support body, X-ray production apparatus is fixed in this inner space, support body is provided with the window supplying the X ray of X-ray production apparatus injection to pass, the side that support body is provided with window is also provided with focusing lamp.
CN201410857696.XA 2014-12-31 2014-12-31 Nondestructive testing device for oil storage tanks Pending CN104502380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410857696.XA CN104502380A (en) 2014-12-31 2014-12-31 Nondestructive testing device for oil storage tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410857696.XA CN104502380A (en) 2014-12-31 2014-12-31 Nondestructive testing device for oil storage tanks

Publications (1)

Publication Number Publication Date
CN104502380A true CN104502380A (en) 2015-04-08

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ID=52943795

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410857696.XA Pending CN104502380A (en) 2014-12-31 2014-12-31 Nondestructive testing device for oil storage tanks

Country Status (1)

Country Link
CN (1) CN104502380A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107991440A (en) * 2017-12-05 2018-05-04 董海峰 A kind of oil storage tank Non-Destructive Testing slewing equipment
CN115855979A (en) * 2022-12-15 2023-03-28 中国能源建设集团浙江火电建设有限公司 A large-scale LNG storage tank ray detection device

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2150557Y (en) * 1993-03-20 1993-12-22 张森 Movable flaw detector bracket for pipeline
JPH1038818A (en) * 1996-07-17 1998-02-13 Ishikawajima Harima Heavy Ind Co Ltd X-ray imaging method and X-ray imaging apparatus used therefor
CN1174923A (en) * 1997-08-21 1998-03-04 上海市建筑科学研究院 Falling-proof safety protective system for integral electric lifting scaffold
JPH10160440A (en) * 1996-11-29 1998-06-19 Mitsubishi Heavy Ind Ltd Film sticking position detector for radiation inspection
US20020181650A1 (en) * 2000-07-28 2002-12-05 D'ambrosio Karl V. Apparatuses and methods for non-destructive inspection
CN2531386Y (en) * 2002-04-10 2003-01-15 潘磊 Radiation pipeline creeper
CN1475696A (en) * 2002-08-13 2004-02-18 张根祥 Method for overhaul person in boiler quickly change its space position
CN201183719Y (en) * 2008-01-11 2009-01-21 张凤翔 Revolving type mini single arm crane
KR20090067789A (en) * 2007-12-21 2009-06-25 주식회사 한국공업엔지니어링 Radiographic inspection device that does not require scaffolding in high altitude work
CN101770823A (en) * 2010-01-22 2010-07-07 中广核检测技术有限公司 Welding line X-ray inspection device between lower seal head of voltage stabilizer and surge nozzle in nuclear power station
CN202041482U (en) * 2011-04-25 2011-11-16 中国十九冶集团有限公司 Hooks for Radiographic Inspection of Circumferential Butt Welding Specimens of Small-diameter Pipes
CN102297321A (en) * 2011-06-01 2011-12-28 中国十九冶集团有限公司 Test piece supporting and fixing device for radiographic inspection machine
CN102401805A (en) * 2010-09-19 2012-04-04 西安轨道交通装备有限责任公司 Real time imaging transillumination method and system for tank car
CN102507611A (en) * 2011-10-28 2012-06-20 中国核工业二三建设有限公司 Travelling device for welding joint radiological inspecting machine
CN102539452A (en) * 2012-02-14 2012-07-04 中国东方电气集团有限公司 Radioactive source fixing support for radiographic inspection of large tube-shaped weld workpiece
CN202676629U (en) * 2012-07-25 2013-01-16 天津辰鑫石化工程设计有限公司 Weld joint alignment instrument of directional ray machine
CN202757894U (en) * 2012-07-25 2013-02-27 天津辰鑫石化工程设计有限公司 Weld seam alignment instrument for peripheral ray machine
CN202994691U (en) * 2012-11-30 2013-06-12 武汉一冶钢结构有限责任公司 X-ray radiographic inspection rapid detection platform
CN203025122U (en) * 2012-12-18 2013-06-26 丹东奥龙射线仪器有限公司 X-ray automatic detection device of gas storage tank

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2150557Y (en) * 1993-03-20 1993-12-22 张森 Movable flaw detector bracket for pipeline
JPH1038818A (en) * 1996-07-17 1998-02-13 Ishikawajima Harima Heavy Ind Co Ltd X-ray imaging method and X-ray imaging apparatus used therefor
JPH10160440A (en) * 1996-11-29 1998-06-19 Mitsubishi Heavy Ind Ltd Film sticking position detector for radiation inspection
CN1174923A (en) * 1997-08-21 1998-03-04 上海市建筑科学研究院 Falling-proof safety protective system for integral electric lifting scaffold
US20020181650A1 (en) * 2000-07-28 2002-12-05 D'ambrosio Karl V. Apparatuses and methods for non-destructive inspection
CN2531386Y (en) * 2002-04-10 2003-01-15 潘磊 Radiation pipeline creeper
CN1475696A (en) * 2002-08-13 2004-02-18 张根祥 Method for overhaul person in boiler quickly change its space position
KR20090067789A (en) * 2007-12-21 2009-06-25 주식회사 한국공업엔지니어링 Radiographic inspection device that does not require scaffolding in high altitude work
CN201183719Y (en) * 2008-01-11 2009-01-21 张凤翔 Revolving type mini single arm crane
CN101770823A (en) * 2010-01-22 2010-07-07 中广核检测技术有限公司 Welding line X-ray inspection device between lower seal head of voltage stabilizer and surge nozzle in nuclear power station
CN102401805A (en) * 2010-09-19 2012-04-04 西安轨道交通装备有限责任公司 Real time imaging transillumination method and system for tank car
CN202041482U (en) * 2011-04-25 2011-11-16 中国十九冶集团有限公司 Hooks for Radiographic Inspection of Circumferential Butt Welding Specimens of Small-diameter Pipes
CN102297321A (en) * 2011-06-01 2011-12-28 中国十九冶集团有限公司 Test piece supporting and fixing device for radiographic inspection machine
CN102507611A (en) * 2011-10-28 2012-06-20 中国核工业二三建设有限公司 Travelling device for welding joint radiological inspecting machine
CN102539452A (en) * 2012-02-14 2012-07-04 中国东方电气集团有限公司 Radioactive source fixing support for radiographic inspection of large tube-shaped weld workpiece
CN202676629U (en) * 2012-07-25 2013-01-16 天津辰鑫石化工程设计有限公司 Weld joint alignment instrument of directional ray machine
CN202757894U (en) * 2012-07-25 2013-02-27 天津辰鑫石化工程设计有限公司 Weld seam alignment instrument for peripheral ray machine
CN202994691U (en) * 2012-11-30 2013-06-12 武汉一冶钢结构有限责任公司 X-ray radiographic inspection rapid detection platform
CN203025122U (en) * 2012-12-18 2013-06-26 丹东奥龙射线仪器有限公司 X-ray automatic detection device of gas storage tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107991440A (en) * 2017-12-05 2018-05-04 董海峰 A kind of oil storage tank Non-Destructive Testing slewing equipment
CN115855979A (en) * 2022-12-15 2023-03-28 中国能源建设集团浙江火电建设有限公司 A large-scale LNG storage tank ray detection device

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