CN203671166U - Gamma radiation source fixing device for small diameter tube radiographic inspection - Google Patents

Gamma radiation source fixing device for small diameter tube radiographic inspection Download PDF

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Publication number
CN203671166U
CN203671166U CN201420025022.9U CN201420025022U CN203671166U CN 203671166 U CN203671166 U CN 203671166U CN 201420025022 U CN201420025022 U CN 201420025022U CN 203671166 U CN203671166 U CN 203671166U
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CN
China
Prior art keywords
outer tube
ray source
gamma ray
bolt
fixing device
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.)
Expired - Lifetime
Application number
CN201420025022.9U
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Chinese (zh)
Inventor
张东辉
刘丽丽
赵天伟
魏鹏
严宇
杨会敏
张晓峰
黄晶
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.)
Nuclear Engineering Research & Design Co Ltd
China Nuclear Industry 23 Construction Co Ltd
Original Assignee
Nuclear Engineering Research & Design Co Ltd
China Nuclear Industry 23 Construction Co Ltd
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Priority to CN201420025022.9U priority Critical patent/CN203671166U/en
Application granted granted Critical
Publication of CN203671166U publication Critical patent/CN203671166U/en
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Abstract

The utility model relates to the technical field of non-destructive testing, and provides a gamma radiation source fixing device for small diameter tube radiographic inspection in order to solve the problems that an existing gamma radiation source is not firmly fixed and focal length setting is troublesome. The gamma radiation source fixing device comprises a base, a supporting rod perpendicularly connected with the base, an outer pipe and a small casing pipe, wherein the supporting rod is sleeved with the outer pipe, and the small casing pipe is fixed to the outer pipe. A positioning bolt is arranged on the outer pipe, and a fixing bolt is arranged on the small casing pipe. A gamma radiation source is fixedly arranged in the small casing pipe, and the focal length can be adjusted by moving the outer pipe up and down. Due to the fact that the gamma radiation source fixing device for small diameter tube radiographic inspection is used, the focal length is convenient to adjust, the gamma radiation source is firmly fixed, and detection efficiency and quality are improved.

Description

A kind of Gamma ray source fixing device for small diameter tube radiographic inspection
Technical field
The utility model relates to technical field of nondestructive testing, is specifically related to the Gamma ray source fixing device for small diameter tube radiographic inspection.
Background technique
In the time that small diameter tube (diameter is less than the pipe of 79mm) is carried out to γ (gamma) radiographic inspection, need to carry out vertical transillumination and oval transillumination according to standard-required.Before transillumination, first to look for no chest at present, then Gamma ray source be placed on chest and adjust focal length and the position of Gamma ray source, make the focal length of Gamma ray source and position meet the requirement of transillumination, then Gamma ray source is fixed on chest with rubber band or adhesive tape.Or around small diameter tube to be detected, find no shelf, Gamma ray source is put on shelf, and will guarantee that the position of Gamma ray source and focal length meet the standard-required of transillumination.
Prior art mainly contains two aspect deficiencies, and on the one hand, the focal length of Gamma ray source transillumination and the requirement of position are strict regulations, and the chest temporarily calling in or shelf are difficult to meet the demands, and on chest or shelf to adjust the focal length of Gamma ray source pretty troublesome.On the other hand, the chest temporarily calling in or the steadiness of shelf are poor, whole transillumination process generally at least needs dozens of minutes, so the chest calling in or shelf probably move and Gamma ray source are moved in transillumination process temporarily, cause focal length change, and then cause egative film can not meet standard-required, and cause egative film to cancel, detection efficiency reduces.
Model utility content
For solve existing Gamma ray source fixing built on the sand with the problem of Focussing trouble, the utility model proposes a kind of Gamma ray source fixing device for small diameter tube radiographic inspection, to realize the object that facilitates adjusting focal length and fixed focal length.
Gamma ray source fixing device for small diameter tube radiographic inspection of the present utility model, comprise base, with described base strut connected vertically, be set in the outer tube outside described strut and be fixed on the small casing on the sidewall of described outer tube, described small casing and described outer tube are orthogonal, the sidewall of described outer tube is provided with bolt hole, the holding down bolt that can fix described outer tube is installed in described bolt hole, the sidewall of described small casing is provided with bolt hole, and the fixing bolt that can fix Gamma ray source is installed in described bolt hole.
Preferably, the cylindrical body that described outer tube is hollow.
Preferably, described holding down bolt is arranged on the middle part of described outer tube, with the effect of the fixing outer tube that reached.
Preferably, described strut is cuboid, with the effect of the fixing outer tube that reached.
Preferably, on the nut of described holding down bolt, cover has rotatable handle, and on the nut of described fixing bolt, cover has rotatable handle, to facilitate rotation holding down bolt and fixing bolt.
Gamma ray source fixing device for small diameter tube radiographic inspection of the present utility model, comprise base, with described base strut connected vertically, be set in outer tube outside described strut and be fixed on the small casing at the top of described outer tube, described base is that half slot structure and notch are downward, described small casing is parallel with described base, the sidewall of described outer tube is provided with bolt hole, the holding down bolt that can fix described outer tube is installed in described bolt hole, the sidewall of described small casing is provided with bolt hole, the fixing bolt that can fix Gamma ray source is installed in described bolt hole.
Preferably, the cylindrical body that described outer tube is hollow.
Preferably, described holding down bolt is arranged on the middle part of described outer tube, with the effect of the fixing outer tube that reached.
Preferably, described strut is cuboid, with the effect of the fixing outer tube that reached.
Preferably, on the nut of described holding down bolt, cover has rotatable handle, and on the nut of described fixing bolt, cover has rotatable handle, to facilitate rotation holding down bolt and fixing bolt.
The Gamma ray source fixing device for small diameter tube radiographic inspection the utility model proposes, by moving up and down outer tube adjusting focal length very easily; Focal length reaches after requirement, utilizes the vertical position of the fixing outer tube of holding down bolt, and fixed focal length well, prevents that transillumination process mid-focal length from changing; Gamma ray source is fixed in small casing, can prevent from causing focal length to change because Gamma ray source is moved in transillumination process.The utility model adjusting focal length is easily convenient, and fixing Gamma ray source is firm, has improved on the whole efficiency and the quality of small diameter tube radiographic inspection.
Accompanying drawing explanation
Fig. 1 is the utility model the first embodiment's structural representation;
Fig. 2 is the utility model the second embodiment's structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail, as shown in Fig. 1-Fig. 2.
Be illustrated in figure 1 the first embodiment's structural representation, for the Gamma ray source fixing device 10 of small diameter tube radiographic inspection comprise base 1, with base 1 strut 2 connected vertically, be set in the outer tube 3 outside strut 2 and be fixed on the small casing 7 of the sidewall of outer tube 3.Strut 2 is vertically fixed on base 1, and base 1 is rectangular plate or plectane, and outer tube 3 is hollow tubular structure, outer tube 3 is vertically enclosed within strut 2 outsides, outer tube 3 can move up and down with respect to base 1 along strut 2, and outer tube 3 is bottom near one end of base 1, and the other end is top.Outer tube 3 is provided with bolt hole, and holding down bolt 5 is installed in bolt hole.The wall thickness of outer tube 3 is 1cm(centimetre)--2cm(centimetre).Outer tube 3 is cylindrical body or cuboid, and when outer tube 3 is cylindrical body, the external diameter of outer tube 3 equals the length of the screw rod of holding down bolt 5.Outer tube 3 moves up and down behind suitable position, turns holding down bolt 5, makes holding down bolt 5 prop up strut 2, has so just fixed the position of outer tube 3.Strut 2 is cylindrical body or cuboid, is preferably cuboid, because when like this holding down bolt 5 props up strut 2, large with the area of contact of strut 2, has fixed effect better.Preferably, holding down bolt 5 is arranged on the middle part of outer tube 3, is arranged on this position and can fixes better outer tube 3.On the bolt head of holding down bolt 5, can overlap and have rotatable handle 4, to facilitate rotation holding down bolt 5.Small casing 7 is fixed on the sidewall of outer tube 3, and the wall thickness of small casing 7 is 0.5cm(centimetre)--1cm(centimetre), and small casing 7 is orthogonal with outer tube 3, and preferably, small casing 7 is positioned at the neutral position of outer tube 3.The neutral position of small casing 7 is provided with bolt hole, and fixing bolt 6 is installed in bolt hole.Fixing bolt 6 is for being fixed on Gamma ray source small casing 7.Because Gamma ray source can not bear excessive pressure, fixing bolt 6 can be selected rubber bolt, uses rubber bolt, can fix Gamma ray source on the one hand, can protect on the other hand Gamma ray source, Gamma ray source can not damaged by pressure.On the bolt head of fixing bolt 6, also cover has rotatable handle 4, to facilitate rotary fixing screw bolt 6.
While using the first embodiment of the present utility model to carry out small diameter tube detection, small diameter tube is positioned on base 1, Gamma ray source is inserted in small casing 7, regulate the extrusion of Gamma ray source, to meet the requirement of transillumination, turn rotatable handle 7, rotary fixing screw bolt 6, make fixing bolt 6 prop up Gamma ray source, Gamma ray source is just fixed in small casing 7 like this.When the small diameter tube transillumination of different tube diameters, need different focal lengths, move up and down outer tube 3, Gamma ray source also moves up and down thereupon, thereby focuses size, after the requirement that meets transillumination until focal length, turn rotatable handle 4, rotation holding down bolt 5, makes holding down bolt 5 tightly prop up supporting element 2, and outer tube 3 is just fixed on strut 2 like this, the vertical position of outer tube 3 is fixed, and has also just fixed transillumination focal length.
Gamma ray source be fixed bolt 6 fixing after, can guarantee not occurrence positions variation of Gamma ray source; Holding down bolt 5 is fixed the vertical position of outer tube 3, guarantees not change of focal length.And move up and down outer tube 3 just can adjusting focal length, focus adjustment is easily convenient.
Be illustrated in figure 2 the second embodiment's structural representation, comprise base 8, strut 2, outer tube 3 and be fixed on the small casing 7 on outer tube 3 for the device 20 of small diameter tube radiographic inspection.Base 8 is that half slot and notch are downward, and the wall thickness of base 8 is 0.5cm(centimetre).Base 8 is made of metal.Strut 2 is vertically fixed on base 8, and strut 2 can be cylindrical body or cuboid, or even tubular structure, and strut 2 is made up of rigid material, and length is 50cm(centimetre), the effect of strut 2 is to support and fixing outer tube 3.Outer tube 3 is hollow tubular structure, the wall thickness of outer tube 3 is 1cm(centimetre)--2cm(centimetre), length is 50cm(centimetre), outer tube 3 is vertically enclosed within strut 2 outsides, outer tube 3 can move up and down with respect to base 8 along strut 2, here claim that outer tube 3 is bottom near one end of base 8, the other end is top.Outer tube 3 is provided with bolt hole, and holding down bolt 5 is installed in bolt hole, and outer tube 3 moves up and down behind suitable position, turns holding down bolt 5, makes holding down bolt 5 prop up strut 2, to fix the position of outer tube 3.Outer tube 3 is cylindrical body or cuboid, and when outer tube 3 is cylindrical body, the external diameter of outer tube 3 equals the length of the screw rod of holding down bolt 5.Strut 2 is cylindrical body or cuboid, is preferably cuboid, because when like this holding down bolt 5 props up strut 2, large with the area of contact of strut 2, has fixed effect better.Small casing 7 is fixed on the top of outer tube 3, and small casing 7 can be welded in the top of outer tube 3, also can be adhered to the top of outer tube 3.And small casing 7 is parallel to each other with base 8, to meet the requirement of oval transillumination or vertical transillumination.The wall thickness of small casing 7 is 0.5cm(centimetre)--1cm(centimetre), the neutral position of small casing 7 is provided with bolt hole, and fixing bolt 6 is installed in bolt hole.Fixing bolt 6 is for being fixed on Gamma ray source small casing 7.Because Gamma ray source can not bear excessive pressure, fixing bolt 6 choice for use rubber bolts, can either fix Gamma ray source, again can fine protection Gamma ray source, Gamma ray source can not damaged by pressure.
On the bolt head of fixing bolt 6 and holding down bolt 5, cover has rotatable handle 4, to facilitate swivel bolt.
Preferably, holding down bolt 5 is arranged on the middle part of outer tube 3, is arranged on this position and can fixes better outer tube 3, easy to use.
While using the second embodiment's the device for small diameter tube radiographic inspection, base 8 is positioned on small diameter tube, then with adhesive tape or rubber band etc., small diameter tube and base 8 is fixed together; Gamma ray source is positioned in small casing 7, regulates the extrusion of Gamma ray source, to meet the requirement of transillumination, use fixing bolt 6 that Gamma ray source is fixed in small casing 7.Move up and down outer tube 3, Gamma ray source also moves up and down thereupon, with the size of focusing, after the requirement that meets transillumination, uses the vertical position of holding down bolt 5 fixing outer tubes 3 until focal length.Whole process adjusting focal length is easily convenient.

Claims (10)

1. the Gamma ray source fixing device for small diameter tube radiographic inspection, it is characterized in that, comprise base (1), with described base (1) strut connected vertically (2), be set in the outer outer tube (3) of described strut (2) and be fixed on the small casing (7) on the sidewall of described outer tube (3), described small casing (7) is orthogonal with described outer tube (3), the sidewall of described outer tube (3) is provided with bolt hole, the holding down bolt (5) that can fix described outer tube (3) is installed in described bolt hole, the sidewall of described small casing (7) is provided with bolt hole, the fixing bolt (6) that can fix Gamma ray source is installed in described bolt hole.
2. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 1, it is characterized in that the cylindrical body that described outer tube (3) is hollow.
3. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 1, it is characterized in that, described holding down bolt (5) is arranged on the middle part of described outer tube (3).
4. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 1, it is characterized in that, described strut (2) is cuboid.
5. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 1, it is characterized in that, on the nut of described holding down bolt (5), cover has rotatable handle (4), and on the nut of described fixing bolt (6), cover has rotatable handle (4).
6. the Gamma ray source fixing device for small diameter tube radiographic inspection, it is characterized in that, comprise base (8), with described base (8) strut connected vertically (2), be set in the outer outer tube (3) of described strut (2) and be fixed on the small casing (7) at the top of described outer tube (3), described base (8) is that half slot structure and notch are downward, described small casing (7) is parallel with described base (8), the sidewall of described outer tube (3) is provided with bolt hole, the holding down bolt (5) that can fix described outer tube (3) is installed in described bolt hole, the sidewall of described small casing (7) is provided with bolt hole, the fixing bolt (6) that can fix Gamma ray source is installed in described bolt hole.
7. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 6, it is characterized in that the cylindrical body that described outer tube (3) is hollow.
8. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 6, it is characterized in that, described holding down bolt (5) is arranged on the middle part of described outer tube (3).
9. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 6, it is characterized in that, described strut (2) is cuboid.
10. according to the Gamma ray source fixing device for small diameter tube radiographic inspection of claim 6, it is characterized in that, on the nut of described holding down bolt (5), cover has rotatable handle (4), and on the nut of described fixing bolt (6), cover has rotatable handle (4).
CN201420025022.9U 2014-01-15 2014-01-15 Gamma radiation source fixing device for small diameter tube radiographic inspection Expired - Lifetime CN203671166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420025022.9U CN203671166U (en) 2014-01-15 2014-01-15 Gamma radiation source fixing device for small diameter tube radiographic inspection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420025022.9U CN203671166U (en) 2014-01-15 2014-01-15 Gamma radiation source fixing device for small diameter tube radiographic inspection

Publications (1)

Publication Number Publication Date
CN203671166U true CN203671166U (en) 2014-06-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897702A (en) * 2015-06-24 2015-09-09 中国石油天然气第一建设公司 Special gamma ray detection tool for small diameter tube butt joints
CN104950003A (en) * 2015-06-24 2015-09-30 中国石油天然气第一建设公司 Gamma ray detection method for butt joint of small-diameter pipe
CN112113982A (en) * 2020-10-29 2020-12-22 中国石油天然气第一建设有限公司 Industrial X-ray generator fixing device capable of adjusting transillumination focal length of small-diameter tube

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897702A (en) * 2015-06-24 2015-09-09 中国石油天然气第一建设公司 Special gamma ray detection tool for small diameter tube butt joints
CN104950003A (en) * 2015-06-24 2015-09-30 中国石油天然气第一建设公司 Gamma ray detection method for butt joint of small-diameter pipe
CN104897702B (en) * 2015-06-24 2017-08-08 中国石油天然气第一建设有限公司 A kind of small diameter tube banjo fixing butt jointing gamma ray detection special tooling
CN104950003B (en) * 2015-06-24 2017-08-15 中国石油天然气第一建设有限公司 A kind of gamma ray detection method of small diameter tube banjo fixing butt jointing
CN112113982A (en) * 2020-10-29 2020-12-22 中国石油天然气第一建设有限公司 Industrial X-ray generator fixing device capable of adjusting transillumination focal length of small-diameter tube

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Granted publication date: 20140625