CN216051459U

CN216051459U - Digital X-ray detection system for defects of fiber layer of wound gas cylinder

Info

Publication number: CN216051459U
Application number: CN202122221039.4U
Authority: CN
Inventors: 时岩; 唐萍; 郭伟灿; 滕国阳; 汤杰
Original assignee: Zhejiang Institute of Special Equipment Science
Current assignee: Zhejiang Institute of Special Equipment Science
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-15
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to the field of engineering detection. The purpose is to provide a digital X-ray detection system for the defects of the fiber layer of the wound gas cylinder, so as to realize the automatic conveying and rotation of the wound gas cylinders with various specifications and sizes and the digital X-ray detection of the defects of the fiber layer. The technical scheme is as follows: the utility model provides a digital X ray detecting system of winding gas cylinder fibre layer defect which characterized in that: the detection system comprises a driving device for driving the wound gas cylinder to do linear motion and rotary motion, and a detection device for performing digital X-ray detection on the wound gas cylinder; the driving device comprises a linear driving component and a rotary driving component; the linear driving assembly comprises a plurality of driving conveying rollers, a conveying motor and a plurality of driven conveying rollers, wherein the driving conveying rollers are horizontally arranged and distributed along the length direction of the detection system, the conveying motor drives the driving conveying rollers, and the driven conveying rollers are obliquely arranged on two sides of the driving conveying rollers to prevent the wound gas cylinder from moving laterally.

Description

Digital X-ray detection system for defects of fiber layer of wound gas cylinder

Technical Field

The utility model relates to the field of engineering detection, in particular to a digital X-ray detection system for defects of a fiber layer of a wound gas cylinder.

Background

At present, steel inner containers, carbon fiber, and circumferentially wound gas cylinders are mainly used for long tube trailers and tube bundle containers for storing and transporting hydrogen in China, and are hereinafter referred to as wound gas cylinders. The winding gas cylinder has a multilayer structure of a steel inner container, a carbon fiber composite material reinforcing layer, a glass fiber composite material protective layer and the like, and the carbon fiber composite material reinforcing layer and the glass fiber composite material protective layer are combined to be referred to as a fiber layer for short. The defects of the fiber layer outside the steel liner, such as layering, inclusion, pores and the like, can be detected by using a digital X-ray tangential irradiation technology, and the specific method is to enable the irradiation direction of the central ray beam to be tangential to the surface of the wound gas cylinder and to be vertical to the surface of the flat panel detector. However, the wound cylinders have different specifications and sizes, the diameter is usually larger than 500mm, the length is larger than 2000mm, the mass is larger than 500kg, manual adjustment of the tangential irradiation area of the fiber layer of the wound cylinder is time-consuming and labor-consuming, and the efficiency is low. Therefore, in order to perform digital X-ray detection on the fiber layers of the wound cylinders with different specifications and sizes efficiently, a digital X-ray detection system for the defects of the fiber layers of the wound cylinders is needed to realize automatic conveying, rotation and digital X-ray detection of the defects of the fiber layers of the wound cylinders with various specifications and sizes.

Disclosure of Invention

The utility model aims to solve the problems of the background technology and provide a digital X-ray detection system for detecting defects of fiber layers of wound gas cylinders, so as to realize automatic conveying and rotation of the wound gas cylinders with various specifications and sizes and digital X-ray detection of the defects of the fiber layers.

The technical scheme provided by the utility model is as follows:

the utility model provides a digital X ray detecting system of winding gas cylinder fibre layer defect which characterized in that: the detection system comprises a driving device for driving the wound gas cylinder to do linear motion and rotary motion, and a detection device for performing digital X-ray detection on the wound gas cylinder;

the driving device comprises a linear driving component and a rotary driving component; the linear driving assembly comprises a plurality of driving conveying rollers, a conveying motor and a plurality of driven conveying rollers, wherein the driving conveying rollers are horizontally arranged and distributed along the length direction of the detection system, the conveying motor drives the driving conveying rollers, and the driven conveying rollers are obliquely arranged at two sides of the driving conveying rollers so as to prevent the wound gas cylinder from moving laterally; the rotation driving assembly comprises a plurality of driving rotation rollers and driven rotation rollers which are distributed along the length direction of the detection system and are respectively positioned at two sides of the driving conveying roller, and a rotation motor for driving the driving rotation rollers;

the detection device comprises a ray source, a compensation block and a flat panel detector; the ray source and the flat panel detector are respectively arranged at the corresponding heights of two sides of the wound gas cylinder, so that digital X-ray detection of the fiber layer of the wound gas cylinder is realized.

The driving conveying rollers are distributed at intervals, and the axes of the driving conveying rollers and the driven conveying rollers are perpendicular to the length direction of the detection system.

All driving rotating rollers are coaxially arranged, and the axes of the driving rotating rollers are parallel to the length direction of the detection system, and all driven rotating rollers are coaxially arranged, and the axes of the driven rotating rollers are parallel to the length direction of the detection system.

All the driving rotating rollers are fixed on the same rotating roller shaft and are driven by a rotating motor through a chain and chain wheel mechanism;

each driving conveying roller is fixed on a conveying roller shaft with a chain wheel and is driven by a conveying motor through the same conveying roller chain.

Each driven conveyor roller comprises at least two rollers arranged parallel to each other and at a distance from each other.

All driving rotating rollers and driven rotating rollers are installed on the same platform driven by a plurality of hydraulic cylinders, and therefore synchronous lifting of the driving rotating rollers and the driven rotating rollers is achieved.

The two driven conveying rollers are arranged in a pair, and the two driven conveying rollers of each pair are distributed at corresponding positions on two sides of the driving conveying roller through the supporting bracket and are positioned on the same driven conveying roller guide rail which is horizontally arranged so as to carry out position adjustment in the opposite or reverse directions as required;

each driving rotating roller and the driven rotating rollers at corresponding positions form a pair, and the two rotating rollers of each pair are distributed on two sides of the driving conveying roller through supports and are positioned on the same rotating roller guide rail horizontally arranged so as to adjust the positions in opposite directions or opposite directions according to requirements.

Each driven conveying roller is fixed on the supporting bracket through an angle adjuster respectively so as to be matched with the guide rail of the driven conveying roller to correspondingly adjust the angle of the wound gas cylinders with different diameters.

Upright posts with vertical guide rails are distributed and installed on the left side and the right side of the wound gas cylinder; the radiation source can be vertically and slidably positioned on a vertical guide rail on one side, and the flat panel detector and the compensation block can be vertically and slidably positioned on a vertical guide rail on the other side; thereby realizing the digital X-ray detection of the fiber layers of the wound gas cylinders with different diameters.

The compensation block is made of a material with the density similar to that of a fiber layer of the wound gas cylinder, the cross section of the compensation block is designed into a trapezoid-like shape with a curve inclined edge, so that the thickness difference of X-rays passing through the fiber layer along different angles is corrected, and the imaging gray scale of the flat panel detector is uniform.

The utility model has the beneficial effects that:

the digital X-ray detection system provided by the utility model can realize automatic conveying and rotation of the wound gas cylinders with various specifications and sizes and digital X-ray detection of the defects of the full-range fiber layers according to the internal structure and material characteristics of the wound gas cylinders.

Drawings

Fig. 1 is a schematic view of the internal structure of a wound cylinder.

Fig. 2 is a schematic front view of the embodiment of the present invention.

Fig. 3 is a right-side view of the driving device in fig. 2.

Fig. 4 is a front view schematically showing the structure of the driven feed roller in the drive device.

Fig. 5 is a schematic front view of the driven conveying roller, the driving rotary roller and the driven rotary roller after position adjustment in the embodiment of the utility model (to adapt to detection of a large-diameter wound gas cylinder).

Reference numerals:

1. a steel inner container; 2. a fibrous layer; 3. a driven delivery roll; 4. an angle adjuster; 5. a driving rotation roller; 6. Rotating the roll shaft; 7. a rotating roller sprocket; 8. a rotating motor chain; 9. a rotating electric machine; 10. a base; 11. A driven conveyor roller guide; 12. a platform; 13. a rotating roller guide; 14. an active delivery roller; 15. a driven rotating roller; 16. a radiation source; 17. a compensation block; 18. a flat panel detector; 19. a column; 20. a conveying motor; 21. a conveying motor chain; 22. a conveyor roller sprocket; 23. a conveying roller chain; 24. and (4) rolling.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and embodiments.

The winding gas cylinder comprises a steel inner container 1 and a fiber layer 2 (see figure 1). The fiber layer 2 is wound on the cylinder part of the steel liner 1 and the bottle end transition section part near the cylinder, and needs to be detected by adopting a digital X-ray tangential irradiation technology.

The utility model provides a digital X-ray detection system for defects of a fiber layer of a wound gas cylinder, which comprises: the device comprises a driving device for driving the winding gas cylinder to do linear motion and rotary motion, and a detection device for performing digital X-ray detection on the winding gas cylinder (see figures 2 and 3);

the driving device comprises a linear driving component and a rotary driving component; the automatic conveying device comprises a driven conveying roller 3, an angle regulator 4, a driving rotating roller 5, a rotating roller shaft 6, a rotating roller chain wheel 7, a rotating motor chain 8, a rotating motor 9, a driving device base 10, a driven conveying roller guide rail 11, a platform 12, a rotating roller guide rail 13, a driving conveying roller 14, a driven rotating roller 15, a conveying motor 20, a conveying motor chain 21, a conveying roller chain wheel 22 and a conveying roller chain 23.

In the linear drive assembly: the axes of the active conveying rollers 14 are horizontally arranged and distributed along the length direction (i.e. the left and right direction of fig. 3) of the detection system, and the equal distance is kept between every two active conveying rollers; the conveying motor is used for driving the driving conveying rollers; the plurality of driven conveying rollers 3 are distributed on two sides of the driving conveying roller, and are obliquely arranged on two sides of the driving conveying roller to form a trapezoidal space with the upper part and the lower part matched with the wound gas cylinder, so that the lateral movement (namely, the movement perpendicular to the length direction of the detection system) of the wound gas cylinder can be prevented. The axes of the driving conveying rollers and the axes of the driven conveying rollers are perpendicular to the length direction of the detection system;

a conveying roller chain wheel 22 is respectively fixed on the conveying roller shaft of each driving conveying roller, and the conveying roller chain 23 is meshed with the conveying roller chain wheels on all the conveying roller shafts to carry out power transmission; two chain wheels are fixed on a conveying roller shaft of the first driving conveying roller and can be respectively meshed with the conveying motor chain 21 and the conveying roller chain; the conveying motor 20 drives the conveying motor chain to input power, so that all the driving conveying rollers can synchronously rotate; when the driving conveying roller rotates, the driven conveying roller limits the lateral rolling (namely, the movement perpendicular to the length direction of the detection system) of the air cylinder, so that the wound air cylinder is stably and controllably conveyed forwards.

Furthermore, the surface of each driven conveying roller, which is in contact with the winding gas cylinder, is provided with at least two freely rotatable rollers 24, the two rollers are parallel to each other and arranged at intervals, and the axes of the rollers are perpendicular to the length direction of the detection system; when initiative conveying roller drive twines the gas cylinder translation, the running roller on the driven conveying roller can assist the winding gas cylinder to move forward.

In the rotary driving component, a plurality of driving rotary rollers 5 and driven rotary rollers 15 which are horizontally arranged are respectively positioned at two sides of a driving conveying roller and are spaced from each other; all driving rotating rollers are coaxially arranged, and the axes of the driving rotating rollers are parallel to the length direction of the detection system, and all driven rotating rollers are coaxially arranged, and the axes of the driven rotating rollers are parallel to the length direction of the detection system. The rotating motor 9 drives the rotating motor chain 8 (the rotating motor chain 8 is simultaneously meshed with the rotating roller sprocket 7 on the driving rotating roller shaft 6 and the sprocket on the rotating motor shaft) to drive the driving rotating roller; in the rotating process of the winding gas cylinder, the driving rotating roller and the driven rotating roller play a role in supporting and driving the winding gas cylinder to rotate.

Furthermore, all the driving rotating rollers are fixed on the same rotating roller shaft, and the rotating motor drives all the driving rotating rollers to synchronously rotate through the chain and sprocket mechanism, so that the wound gas cylinder rotates around the axis of the wound gas cylinder; the driven rotating roller is driven to rotate together by the friction force of the winding gas cylinder to the driven rotating roller.

Furthermore, all the driving rotating rollers and the driven rotating rollers are fixed on the same platform 12 (the driving rotating rollers and the driven rotating rollers are respectively fixed on the platform through vertically arranged supports), and the supports are driven to vertically move by a plurality of hydraulic cylinders (usually, the hydraulic cylinders can be driven by four hydraulic cylinders arranged at four corners of the platform; the hydraulic cylinders and hydraulic parts for the matched hydraulic cylinders are omitted in the figure) fixed on the base 10, so that the synchronous lifting of the driving rotating rollers and the driven rotating rollers is realized.

Furthermore, the driven conveying rollers are divided into a plurality of pairs, each pair of driven conveying rollers is distributed at the corresponding positions of the left side and the right side of the driving conveying roller through the supporting supports, and the two supporting supports of each pair of driven conveying rollers move towards or away from each other through the same driven conveying roller guide rail 11 horizontally arranged on the base. The bottom of each support bracket is provided with a slide block which is matched with the driven conveying roller guide rail 11, and a locking structure (the prior art) for fixing the slide block and the guide rail is also arranged; the position of the supporting bracket can be fixed through the locking structure after the position of the supporting bracket is adjusted to the position.

Further, each driven delivery roller is fixed to the support bracket by means of an angle adjuster (prior art) whose axis of rotation is parallel to the length direction of the detection system, thus enabling corresponding angular adjustment of the wrapped cylinders of different diameters, in cooperation with the guide rail.

Further, a plurality of rotating roller guide rails 13 are further arranged between the platform and the supports of the driving rotating roller 5 and the driven rotating roller 15, and the rotating roller guide rails are horizontally arranged at the top end of the platform and are arranged perpendicular to the length direction of the detection system; every initiative rotatory roller and the driven rotatory roller of corresponding position constitute a pair ofly, fix a position on same rotatory roller guide rail through the slider slidable of respective support bottom respectively to the configuration is with the fixed locking structure of slider and guide rail (prior art). Therefore, adjustment is carried out when necessary, so that the driving rotating roller and the driven rotating roller move outwards, namely move in the opposite direction, or move inwards, namely move in the opposite direction along the rotating roller guide rail 13, and the rotation of the winding gas cylinder is ensured to be safe and reliable.

Fig. 5 shows a schematic view after the position adjustment of the driven conveying roller, the driving rotating roller, and the driven rotating roller. The post-position adjustment detection system is capable of detecting larger diameter wound cylinders relative to the detection system shown in fig. 2. The adjustment is performed by moving the two driven feed rollers 3 of each pair outward (i.e., in opposite directions) along the driven feed roller guide 11 and adjusting the angle adjuster 4 so that the surface centers of the driven feed rollers 3 are in contact with the wound gas cylinders. In addition, the driving rotation roller 5 and the driven rotation roller 15 are moved outward (i.e., moved in opposite directions) along the rotation roller guide 13 so that the driving rotation roller and the driven rotation roller safely rotate to wind the gas cylinder. The ray source 16, the compensation block 17 and the flat panel detector 18 move upwards along the guide rail of the upright column 19, so that the ray source, the fiber layer region to be detected, the compensation block and the flat panel detector are in the same straight line.

The detection device comprises a radiation source 16, a compensation block 17 and a flat panel detector 18 which are arranged on a stand column 19. The column is provided with a guide rail arranged along the length direction of the column, the ray source, the compensation block and the flat panel detector are respectively positioned on the guide rail in a sliding way through a sliding block, and the sliding block is also provided with a locking structure fixed with the guide rail (the prior art); therefore, the height of the detection device can be adjusted according to needs, and digital X-ray detection of the wound gas cylinder fiber layer is realized.

The working process of the utility model is as follows: the winding gas cylinder to be detected is conveyed through the matching of the driving conveying roller 14 and the driven conveying roller 3, so that the region to be detected of the winding gas cylinder fiber layer 2 moves to the lower side of the ray detection region. Then, the platform 12 drives the driving rotating roller 5 and the driven rotating roller 15 to ascend to jack up the winding gas cylinder, the winding gas cylinder is separated from the driving conveying roller 14 and the driven conveying roller 3, the radiation source 16, the compensation block 17 and the flat panel detector 18 slide along the upright column 19, and the radiation source 16, the fiber layer to-be-detected area, the compensation block 17 and the flat panel detector 18 move to be on the same straight line. The rotating motor 9 drives the rotating motor chain 8 to enable the rotating roller chain wheel 7 to drive the driving rotating roller 5 to rotate, and the driven rotating roller 15 is matched with the driving rotating roller 5 to enable the wound gas cylinder to rotate around the axis of the wound gas cylinder, so that digital X-ray detection of a fiber layer of the wound gas cylinder is performed. After the winding gas cylinder slowly rotates a week, platform 12 drives initiative rotation roller 5 and driven rotation roller 15 and descends, puts the winding gas cylinder on initiative conveying roller 14 and driven conveying roller 3, and the winding gas cylinder breaks away from the contact with initiative rotation roller 5, driven rotation roller 15. The wound cylinder is driven by the driving feed roller 14 and the driven feed roller 3, conveyed forward by a distance, and thereafter the above rotating operation is repeated. And the steps of rotating and translating the wound gas cylinder are alternately and repeatedly carried out, so that the digital X-ray detection full coverage of the fiber layer of the wound gas cylinder is completed.

The material of the compensation block is similar to the density of the fiber layer of the wound gas cylinder, the cross section of the compensation block is designed into a trapezoid with a curve-like inclined edge, so that the thickness difference of X-rays passing through the fiber layer along different angles is corrected, and the gray level of the flat panel detector is uniform. The material and shape structure of the compensation block are the prior art and can be directly used.

It should be noted that figure 5 illustrates a detection system suitable for larger diameter wound cylinders. Similar to that shown in fig. 5, after the structure of the device is adjusted, the wound gas cylinder with a smaller diameter can be detected, specifically, according to the diameter of the wound gas cylinder, the driven conveying roller 3 moves inwards along the driven conveying roller guide rail 11, the angle adjuster 4 is properly adjusted, the driving rotating roller 5 and the driven rotating roller 15 move inwards along the rotating roller guide rail 13, and finally, the radiation source 16, the compensating block 17 and the flat panel detector 18 move downwards to a proper position along the guide rail of the upright post 19.

Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.

Claims

1. The utility model provides a digital X ray detecting system of winding gas cylinder fibre layer defect which characterized in that: the detection system comprises a driving device for driving the wound gas cylinder to do linear motion and rotary motion, and a detection device for performing digital X-ray detection on the wound gas cylinder;

the driving device comprises a linear driving component and a rotary driving component; the linear driving assembly comprises a plurality of driving conveying rollers (14) which are horizontally arranged and distributed along the length direction of the detection system, a conveying motor (20) for driving the driving conveying rollers, and a plurality of driven conveying rollers (3) which are obliquely arranged at two sides of the driving conveying rollers so as to prevent the wound gas cylinder from moving laterally; the rotary driving assembly comprises a plurality of driving rotary rollers (5) and driven rotary rollers (15) which are distributed along the length direction of the detection system and are respectively positioned on two sides of the driving conveying roller, and a rotary motor (9) for driving the driving rotary rollers;

the detection device comprises a ray source (16), a compensation block (17) and a flat panel detector (18); the ray source and the flat panel detector are respectively arranged at the corresponding heights of two sides of the wound gas cylinder, so that digital X-ray detection of the fiber layer of the wound gas cylinder is realized.

2. The digital X-ray detection system of wound gas cylinder fiber layer defects of claim 1, characterized in that: the plurality of driving conveying rollers are distributed at intervals in pairs, and the axes of the driving conveying rollers and the driven conveying rollers are perpendicular to the length direction of the detection system;

3. The digital X-ray detection system of wound gas cylinder fiber layer defects of claim 2, characterized in that: all the driving rotating rollers are fixed on the same rotating roller shaft (6) and are driven by a rotating motor through a chain and chain wheel mechanism;

each driving conveying roller is fixed on a conveying roller shaft with a chain wheel and is driven by a conveying motor through the same conveying roller chain (23).

4. The digital X-ray detection system of wound cylinder fiber layer defects of claim 3, characterized in that: each driven conveyor roller comprises at least two rollers (24) arranged parallel to each other and at a distance.

5. The digital X-ray detection system of wound cylinder fiber layer defects of claim 4, characterized in that: all the driving rotating rollers and the driven rotating rollers are arranged on the same platform (12) driven by a plurality of hydraulic cylinders, so that the synchronous lifting of the driving rotating rollers and the driven rotating rollers is realized.

6. The digital X-ray detection system of wound gas cylinder fiber layer defects of claim 5, characterized in that: the two driven conveying rollers are arranged in a pair, and the two driven conveying rollers in each pair are distributed at corresponding positions on two sides of the driving conveying roller through the supporting bracket and are positioned on the same driven conveying roller guide rail (11) which is horizontally arranged so as to adjust the positions in the opposite or reverse directions according to requirements.

7. The digital X-ray detection system of wound gas cylinder fiber layer defects of claim 6, characterized in that: each driving rotating roller and the driven rotating rollers at corresponding positions form a pair, and the two rotating rollers of each pair are distributed on two sides of the driving conveying roller through a support and are positioned on the same rotating roller guide rail (13) which is horizontally arranged so as to adjust the positions in the opposite or reverse directions according to the needs.

8. The digital X-ray detection system of wound gas cylinder fiber layer defects of claim 7, characterized in that: each driven conveying roller is fixed on the supporting bracket through an angle adjuster (4) respectively so as to be matched with the guide rail of the driven conveying roller to correspondingly adjust the angle of the wound gas cylinders with different diameters.

9. The digital X-ray detection system of wound cylinder fiber layer defects of claim 8, characterized in that: upright posts (19) with vertical guide rails are distributed and installed on the left side and the right side of the winding gas cylinder; the radiation source can be vertically and slidably positioned on a vertical guide rail on one side, and the flat panel detector and the compensation block can be vertically and slidably positioned on a vertical guide rail on the other side; thereby realizing the digital X-ray detection of the fiber layers of the wound gas cylinders with different diameters.

10. The digital X-ray detection system of wound cylinder fiber layer defects of claim 9, characterized in that: the compensation block is made of a material with the density similar to that of a fiber layer of the wound gas cylinder, the cross section of the compensation block is designed into a trapezoid-like shape with a curve inclined edge, so that the thickness difference of X-rays passing through the fiber layer along different angles is corrected, and the imaging gray scale of the flat panel detector is uniform.