CN104076047A - CT (computed tomography) system for monitoring fluid seepage processes - Google Patents
CT (computed tomography) system for monitoring fluid seepage processes Download PDFInfo
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- CN104076047A CN104076047A CN201410362941.XA CN201410362941A CN104076047A CN 104076047 A CN104076047 A CN 104076047A CN 201410362941 A CN201410362941 A CN 201410362941A CN 104076047 A CN104076047 A CN 104076047A
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Abstract
The invention discloses a CT (computed tomography) system for monitoring fluid seepage processes and belongs to the technical field of ray nondestructive testing. The system comprises a CT scanning device, a rack, a cable support, an operating console, an image reconstruction processing device and the like. A ray source and a detector are fixed on a large ring, during CT scanning, a fluid seepage test box is fixed on a support to penetrate through the center of the ring, then the ring provided with the ray source and the detector is driven to perform precise rotary scanning, and image reconstruction and display are performed according to scanning results. Compared with the prior art, the system has the advantages as follows: the fluid seepage test box is not required to be rotated, and the ray source and the detector rotate synchronously around the test box to realize CT scanning imaging; and irrotational motion CT scanning imaging of a to-be-detected object can be realized.
Description
Technical field
The invention belongs to ray technical field of nondestructive testing, especially computerized tomography technical field, relates to computerized tomography (CT) system that a kind of fluid flow event is monitored.
Background technology
Industry CT (being called for short ICT), industrial computed tomography imaging technique (Industrial Computed Tomography), is a kind of advanced person's nondestructiving detecting means.It can, not destroying under the prerequisite of object, present the internal feature of measured workpiece by digitized image form, have be not subject to that Workpiece structure and material affect, detected object scope is wide, space and density resolution high.The conventional scan mode of industry CT can be divided into: translation-rotation (TR) pattern, rotation (RO) pattern, helicon mode etc.For the oily water or other fluid of monitoring, the flow event in the objects such as geologic structure is highly effective means in CT imaging.
But in prior art, industrial CT system mostly is horizontal type structure or vertical structure, a common feature of these systems is that radiographic source and detector layout are in detected object both sides, in scanning process, radiographic source and detector are fixing indefinite, detected object is done precision rotation motion on rotary table, when detected object rotates in beam, the ray that sees through detected object passes in detector, according to its Strength Changes, the integration (be projection) of material in reaction detection object in raypath to gamma ray absorption coefficient, data for projection under various visual angles can be obtained to the absorption coefficient distributed image in radiation exposure section on detected object by the mode of contrary projection.This computerized tomography system, is detected object rotation.In the test of fluid seepage monitoring, due to the singularity of monitoring target or the complicacy of seepage flow experiment system, these detected objects cannot rotate, and therefore traditional computerized tomography mode cannot meet this type of CT detection demand.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of computerized tomography (CT) system of fluid flow event monitoring, this system can be monitored by convection cell flow event, and detected object need not rotate.
For achieving the above object, the invention provides following technical scheme:
A kind of computerized tomography system of fluid flow event monitoring, comprise CT scan device, frame, cable support, operating console and image reconstruction process device, it is characterized in that: in described CT scan device, radiographic source and detector are fixed on a large circle, and this annulus is done precision rotation motion in frame; Described system also comprises translation gear train, and frame can be done translation motion on translation gear train; In the time of CT scan, be that fluid seepage tests case is installed to and on support, makes it through circle ring center and do not bump with annulus upper-part by detected object, make to be provided with 360 ° of annulus precision rotations or the 180 °+α of radiographic source and detector, can complete scanning, meanwhile, make frame do translation motion on translation gear train, to realize the scanning of different parts, then scanning result is sent to image reconstruction process device and reconstructs CT image, and show testing result.
Further, described CT scan device is supported by annular bearing or ring-shaped guide rail, adopts ring gear tooth bar or Timing Belt to drive.
Further, described translation gear train adopts " screw mandrel+line slideway " mode or " rack-and-pinion+line slideway " mode.
Further, described radiographic source adopts electron linear accelerator, X-ray production apparatus, integrated X-ray production apparatus or radioactive isotope, and radiogenic quantity is one or more.
Further, described detector can adopt solid probe, detector liquid, gas detector or semiconductor detector, and its form can be linear array or face array, and the quantity of detector is one or more.
Further, described detector works in integral way or counting mode, and the data transmission of described detector can adopt wireless mode, also can adopt wired mode.
Further, in CT scan device, the cable being connected with radiographic source and detector is supported by scalable cable support, so that radiographic source and detector rotate and unlikely cable distortion and winding with annulus.
Beneficial effect of the present invention is: solved the problem that in conventional CT scans mode, detected object must rotate, under the prerequisite that makes not move at fluid seepage tests case, also can monitor its process.Adopt the fixing radiographic source of telescopic mechanism and detector cable; and adopt the rotating distance of 360 ° or (180 °+α); the cable having solved in radiographic source and detector rotary course is wound around problem, has protected cable and high pressure connection, has improved long term reliability.
Brief description of the drawings
In order to make object of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is agent structure schematic diagram of the present invention;
Fig. 2 is the front elevation of CT scan device.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Fig. 1 is agent structure schematic diagram of the present invention, and Fig. 2 is the front elevation of CT scan device, and as shown in the figure, system of the present invention comprises CT scan device 1, frame 2, cable support, operating console, image reconstruction process device etc.In described CT scan device 1, radiographic source 4 and detector 5 are fixed on an annulus 6, and this annulus moves at the interior precision rotation of doing of frame 2.In the time of CT scan, detected object (fluid seepage tests case) 7 is installed to and on support 8, makes it to bump through annulus 6 centers and unlikely and annulus upper-part, make to be provided with 360 ° of annulus precision rotations or (180 °+α) of radiographic source and detector, can complete scanning, then adopt image reconstruction algorithm to reconstruct CT image.
In scanning process, radiographic source and detector cable are fixed on a cable support, and this support is that telescopic mechanism supports, and can drive cable to move and be unlikely to the distortion of passing siding cable or winding.Frame 2 and CT scan device 1 can do translation motion on translation gear train 9, move along fluid seepage tests case 7 length directions, to realize the monitoring of different parts, in moving process, radiogenic radiographic source high voltage component, radiographic source cooling-part can be with machine frame movements.System is configuration operation control desk (control panel, control workstation and software) and image reconstruction process device (image workstation and software) also.By the control panel on operating console and control workstation, CT control signal is sent to CT scan device, radiographic source 4 sends ray, after penetration-detection object, enter detector 5, the ray signal of reception is finally converted to digital signal by detector 5, and carry out image reconstruction and processing by network delivery to image workstation, and show testing result.
In the present embodiment, described CT scan device 1 is supported by annular bearing or ring-shaped guide rail, adopts ring gear tooth bar or Timing Belt to drive.Translation gear train 9 adopts " screw mandrel+line slideway " mode or " rack-and-pinion+line slideway " mode.
Radiographic source 4 adopts electron linear accelerator, X-ray production apparatus, integrated X-ray production apparatus or radioactive isotope, and the quantity of radiographic source 4 is one or more.Detector 5 can adopt solid probe, detector liquid, gas detector or semiconductor detector, and its form can be linear array or face array, and the quantity of detector 5 is one or more.Detector 5 works in integral way or counting mode, and its data transmission can adopt wireless mode, also can adopt wired mode.
Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the claims in the present invention book limited range.
Claims (7)
1. the computerized tomography system of a fluid flow event monitoring, comprise CT scan device (1), frame (2), operating console and image reconstruction process device, it is characterized in that: in described CT scan device (1), it is upper that radiographic source (4) and detector (5) are fixed on a large circle (6), and this annulus (6) is done precision rotation motion in frame (2); Described system also comprises translation gear train (9), and frame (2) can be done translation motion on translation gear train (9); In the time of CT scan, be that fluid seepage tests case (7) is installed to and on support (8), makes it through annulus (6) center and do not bump with annulus upper-part by detected object, make to be provided with 360 ° of annulus precision rotations or the 180 °+α of radiographic source (4) and detector (5), can complete scanning, simultaneously, make frame (2) do translation motion on translation gear train (9), to realize the scanning of different parts, then scanning result is sent to image reconstruction process device and reconstructs CT image, and show testing result.
2. the computerized tomography system of a kind of fluid flow event monitoring according to claim 1, it is characterized in that: described CT scan device (1) is supported by annular bearing or ring-shaped guide rail, adopt ring gear tooth bar or Timing Belt to be driven by motor.
3. the computerized tomography system of a kind of fluid flow event monitoring according to claim 1, is characterized in that: described translation gear train (9) adopts " screw mandrel+line slideway " mode or " rack-and-pinion+line slideway " mode.
4. the computerized tomography system of a kind of fluid flow event monitoring according to claim 1, it is characterized in that: described radiographic source (4) adopts electron linear accelerator, X-ray production apparatus, integrated X-ray production apparatus or radioactive isotope, and the quantity of radiographic source (4) is one or more.
5. the computerized tomography system of a kind of fluid flow event monitoring according to claim 1, it is characterized in that: described detector (5) can adopt solid probe, detector liquid, gas detector or semiconductor detector, its form can be linear array or face array, and the quantity of detector (5) is one or more.
6. the computerized tomography system of a kind of fluid flow event monitoring according to claim 1, it is characterized in that: described detector (5) works in integral way or counting mode, the data transmission of described detector (5) can adopt wireless mode, also can adopt wired mode.
7. the computerized tomography system of a kind of fluid flow event monitoring according to claim 1, it is characterized in that: in CT scan device (1), the cable being connected with radiographic source and detector is supported by scalable cable support, so that radiographic source and detector rotate and unlikely cable distortion and winding with annulus (6).
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104502382A (en) * | 2015-01-09 | 2015-04-08 | 天津三英精密仪器有限公司 | Novel rock core three-dimensional CT imaging device and application thereof |
| CN105355118A (en) * | 2015-11-17 | 2016-02-24 | 南京大学 | Tectonic control physical simulation experiment model industrial CT detection device and detection method thereof |
| CN105445300A (en) * | 2015-12-16 | 2016-03-30 | 天津三英精密仪器有限公司 | Full-field rod-shaped sample CT scanning device |
| CN105805172A (en) * | 2014-12-31 | 2016-07-27 | 同方威视技术股份有限公司 | Support frame for CT slip ring bearing |
| CN109884560A (en) * | 2019-04-01 | 2019-06-14 | 北京原力辰超导技术有限公司 | Three-dimensional magnetic field stereoscan device, system and method |
| CN109975330A (en) * | 2019-04-28 | 2019-07-05 | 重庆日联科技有限公司 | A kind of ray detecting apparatus and channel-type ray detector |
| CN110099717A (en) * | 2016-11-15 | 2019-08-06 | 西安大医集团有限公司 | A kind of therapeutic equipment |
| CN110108734A (en) * | 2019-06-11 | 2019-08-09 | 丹东奥龙射线仪器集团有限公司 | Non-destructive testing X-ray original position on-line measuring device |
| CN111508049A (en) * | 2020-03-26 | 2020-08-07 | 国网河南省电力公司电力科学研究院 | Image reconstruction method, system, device and storage medium for finite angle CT scanning |
| US11116997B2 (en) | 2015-04-21 | 2021-09-14 | Our United Corporation | Radiotherapeutic device |
| CN113968095A (en) * | 2021-10-22 | 2022-01-25 | 胡玉涛 | Surveying and mapping device for three-dimensional structure |
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| CN109884560A (en) * | 2019-04-01 | 2019-06-14 | 北京原力辰超导技术有限公司 | Three-dimensional magnetic field stereoscan device, system and method |
| CN109884560B (en) * | 2019-04-01 | 2021-12-07 | 北京原力辰超导技术有限公司 | Three-dimensional magnetic field stereo scanning device, system and method |
| CN109975330A (en) * | 2019-04-28 | 2019-07-05 | 重庆日联科技有限公司 | A kind of ray detecting apparatus and channel-type ray detector |
| CN110108734A (en) * | 2019-06-11 | 2019-08-09 | 丹东奥龙射线仪器集团有限公司 | Non-destructive testing X-ray original position on-line measuring device |
| CN111508049A (en) * | 2020-03-26 | 2020-08-07 | 国网河南省电力公司电力科学研究院 | Image reconstruction method, system, device and storage medium for finite angle CT scanning |
| CN113968095A (en) * | 2021-10-22 | 2022-01-25 | 胡玉涛 | Surveying and mapping device for three-dimensional structure |
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