CN113083743B - Full-automatic detection device and detection method for radioactive source - Google Patents
Full-automatic detection device and detection method for radioactive source Download PDFInfo
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- CN113083743B CN113083743B CN202110357035.0A CN202110357035A CN113083743B CN 113083743 B CN113083743 B CN 113083743B CN 202110357035 A CN202110357035 A CN 202110357035A CN 113083743 B CN113083743 B CN 113083743B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/346—Sorting according to other particular properties according to radioactive properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
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Abstract
The invention discloses a full-automatic detection device and a detection method for a radioactive source, wherein the full-automatic detection device for the radioactive source comprises a workbench, a grabbing system, a detector, a source disc to be detected and a control system, wherein the grabbing system, the detector and the source disc to be detected are arranged on the workbench; the source disc to be tested is used for placing a plurality of radioactive sources; the grabbing system is used for grabbing the radioactive sources placed on the source disc to be detected to realize the movement of the radioactive sources; the detector is used for detecting each radioactive source grabbed above the detector by the grabbing system; the control system is used for controlling the gripping system and/or the detector. Above-mentioned technical scheme has improved detection efficiency, has avoided personnel to receive the influence of radiation.
Description
Technical Field
The invention belongs to the technical field of radioactive source detection, and particularly relates to a full-automatic detection device and a detection method for a radioactive source.
Background
In recent years, with the rapid development of Chinese industrialization, the air quality gradually deteriorates, the haze weather gradually increases, and particularly, the inhalation of PM2.5 particles is very harmful to the health of human bodies, so that the monitoring of PM2.5 particles in air pollutants is particularly important. The principle of the beta-ray automatic particulate matter monitor as an effective means for monitoring PM2.5 particles is that a commonly used emission source is a carbon-14 beta radiation source, and the carbon-14 beta radiation source emits beta rays, so that the beta rays penetrate through a filter membrane for collecting the PM2.5 particles, and the PM2.5 particle concentration is analyzed through the attenuation of the beta rays in the process. Among them, the performance of the carbon-14 beta radiation source is an important factor influencing the accuracy of the PM2.5 monitoring result.
The carbon-14 beta radioactive source comprises a source core and a radioactive source shell, wherein the source core consists of an organic film, an aluminized PET (polyethylene terephthalate) film and a radioactive source carrier, and the radioactive source carrier is sealed between the organic film and the aluminized PET film; the radioactive source shell consists of an installation platform and a shell, the shell comprises an inner cavity and an emission window, the source core is adhered to the installation platform, and one side of the aluminized PET film of the source core faces the emission window. The housing of the radiation source is made of stainless steel and is generally spherical, including dimensions of 17mm in diameter, 20mm in diameter, 23mm in diameter, 30mm in diameter, or other dimensions.
At present, a carbon-14 beta radioactive source is mainly measured manually, firstly, an operator clamps the radioactive source by using tweezers, puts the radioactive source into the central position of a measuring disc, then pushes a measuring tray into a measuring instrument, presses a measuring key to read a reading number, and finally, records and analyzes measured data manually. The current manual measurement has the following problems: (1) The position of the radioactive source in the measuring tray is difficult to fix, and the measuring accuracy is influenced; (2) The tray is not completely pushed into the instrument, and the measurement result is inaccurate when a measurement key is pressed; (3) When the radioactive source is taken and put, the tweezers can puncture the sealing film of the radioactive source; (4) Manually recording data may be in error during the recording process; (5) Manual measurements are inefficient and subject to a certain amount of radiation dose.
Disclosure of Invention
In view of the above problems, the present invention discloses a full-automatic detection device and a detection method for a radioactive source, so as to overcome the above problems or at least partially solve the above problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a full-automatic detection device of a radioactive source, which is characterized by comprising a workbench, a grabbing system, a detector, a source disc to be detected and a control system, wherein the grabbing system, the detector and the source disc to be detected are arranged on the workbench; wherein the content of the first and second substances,
the source disc to be tested is used for placing a plurality of radioactive sources;
the grabbing system is used for grabbing the radioactive sources placed on the source disc to be detected to realize the movement of the radioactive sources;
the detector is used for detecting each radioactive source grabbed above the detector by the grabbing system;
the control system is used for controlling the grabbing system and/or the detector.
Optionally, the full-automatic detection device for the radioactive source further comprises an unqualified radioactive source recovery tray, and the unqualified radioactive source recovery tray is used for receiving the radioactive source with unqualified activity through the grabbing system.
Optionally, the grasping system is a three-dimensional grasping system, and is driven by any one of the following modes: air-driven, electric-driven, or electric hybrid-driven.
Optionally, the three-dimensional grabbing system comprises a vertical sliding rail fixedly arranged on the workbench, a transverse sliding rail is arranged on the vertical sliding rail in a sliding mode, a longitudinal sliding rail is arranged on the transverse sliding rail in a sliding mode, a sliding table is arranged on the longitudinal sliding rail in a sliding mode, and a grabbing device is arranged at the bottom of the sliding table.
Optionally, the transverse slide rail is driven by a first step motor and a screw rod, the longitudinal slide rail is driven by a second step motor and a screw rod, and the sliding table is driven by a third step motor and a screw rod.
Optionally, the gripping device is a suction nozzle, the suction nozzle is installed below the sliding table, the shape of the head of the gripping device is matched with that of the radioactive source, and the gripping device is connected with the vacuum generator through an air pipe connecting column arranged on the sliding table.
Optionally, the workbench is of a box structure and is arranged on the rack, and the bottom of the rack is also provided with a bearing wheel.
Optionally, the detector is arranged in the metal box body, and a detector protective cover is further arranged on the metal box body.
Optionally, the control system further comprises a storage device and a display device.
In another aspect of the present invention, a full-automatic detection method for a radioactive source is used in any one of the above full-automatic detection devices for radioactive sources, and the full-automatic detection method for a radioactive source includes:
step 1, placing the prepared radioactive sources into the source disc to be detected according to an arrangement sequence;
step 3, moving the radioactive source to the position above the detector through the grabbing system, and stopping the radioactive source above the detector for a set time to measure the activity;
step 4, judging whether the activity of the radioactive source is qualified or not through a control system, and if so, placing the radioactive source back to the original position of the source disc to be detected;
and 5, repeating the steps 2-4 until the radioactive source in the source disc to be detected is measured, wherein the control system stores the detection data.
The invention has the advantages and beneficial effects that:
the full-automatic detection device and the detection method for the radioactive source are particularly suitable for the carbon-14 beta radioactive source, can overcome the problems caused by manual detection in the prior art, improve the efficiency of radioactive source activity detection, and avoid the radiation dose in personnel operation.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a front view of a fully automated radiation source detection apparatus according to an embodiment of the present invention;
FIG. 2 is a top view of a fully automated radiation source detection apparatus according to an embodiment of the present invention;
fig. 3 is a structural view of a slide table in one embodiment of the present invention.
In the figure: 1. a vertical slide rail; 2. a transverse slide rail; 3. a longitudinal slide rail; 4. a sliding table; 5. a first stepper motor; 6. a second step motor; 7. a third step motor; 8. a suction nozzle; 9. a trachea connecting column; 10. a detector; 11. unqualified radioactive source recovery trays; 12. a source disc to be tested; 13. a box body; 14. bearing wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be understood that the terms "comprises/comprising," "consists of … …," or any other variation, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …", "consisting of … …" does not exclude the presence of additional like elements in a product, apparatus, process or method that includes the element.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device, component, or structure referred to must have a particular orientation, be constructed or operated in a particular orientation, and are not to be construed as limiting the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and fig. 2, a block diagram of a full-automatic detection device for a radioactive source according to an embodiment of the present invention is shown, and the full-automatic detection device for a radioactive source is particularly suitable for a carbon-14 β radioactive source, and specifically includes a workbench, a grasping system, a detector 10, a source disk 12 to be detected, and a control system, where the grasping system, the detector, and the source disk to be detected are disposed on the workbench.
The table is formed by a box 13; the grabbing system consists of a plurality of driving mechanisms, a sliding rail and a sliding table, can move in at least one direction, and is provided with a sucker, a suction nozzle or a manipulator and the like at the bottom for grabbing the radioactive source; the detector 10 is a commercially available device for detecting the activity and other properties of the radioactive source, and is used for detecting the radioactive source transferred to the upper part or the side edge of the detector; the source disc 12 to be tested is used for placing a plurality of radioactive sources, and handles can be arranged on the two sides of the source disc; the source plate 12 to be tested can be provided with grooves in a certain shape, such as an array arrangement, the size and the shape of the grooves are matched with those of the radioactive sources, the grooves are used for fixing the radioactive sources, the source plate to be tested can also be used for receiving the radioactive sources qualified for detection, the radioactive sources are preferably placed back to the original positions, and the grooves on the source plate to be tested can be numbered, so that the control and the detection are convenient to implement; and the control system is used for controlling the grabbing system, the detector and the like, controlling the grabbing system and the detector through a preset program and storing detected data.
Preferably, the full-automatic radioactive source detection device further comprises an unqualified radioactive source recovery disc 11 disposed at a side of the detector 10, and configured to receive the unqualified radioactive source and return the radioactive source qualified for activity detection to the original position of the source disc to be detected. The unqualified radioactive source recovery disc is an open metal box body, soft materials are arranged in the box body, and the soft materials can play a role in buffering the radioactive sources placed in the box body.
Specifically, the gripping system is a three-dimensional gripping system and can move in three directions, namely, the horizontal direction and the vertical direction of the surface of the workbench and the longitudinal direction perpendicular to the workbench. And the gripping system may be driven by compressed gas or electricity or a mixture of electricity and gas.
Optionally, the three-dimensional grabbing system includes two vertical sliding rails 1 fixedly disposed on the workbench, and the two vertical sliding rails 1 are respectively disposed on the left side and the right side of the workbench; and the vertical slide rail 1 is provided with a horizontal slide rail 2 in a sliding manner, and the horizontal slide rail 2 stretches across the two vertical slide rails and can move on the two vertical slide rails.
The horizontal sliding rail 2 is provided with a longitudinal sliding rail 3 in a sliding manner, the longitudinal sliding rail 3 slides under the driving of a driving mechanism in the vertical direction perpendicular to the workbench, a sliding table 4 is arranged on the longitudinal sliding rail in a sliding manner, the sliding table 4 slides up and down under the driving of the driving mechanism, a gripping device is arranged at the bottom of the sliding table, and the gripping device can be any one of a mechanical claw, a vacuum sucker, a suction nozzle and the like.
As a preferred embodiment, the transverse slide rail 2 is driven by a first stepping motor 5 and a screw rod, the longitudinal slide rail 3 is driven by a second stepping motor 6 and a screw rod, and the sliding table 4 is driven by a third stepping motor 7 and a screw rod.
The circuit of connecting above-mentioned step motor and control system also can take place to remove, in order to avoid the circuit to take place to twine unable work, has set up the plastics tow chain and has accomodate the circuit.
In a preferred embodiment, the gripping device is a suction nozzle 8, the suction nozzle 8 is installed below the sliding table 4, the shape of the head of the suction nozzle 8 is matched with the shape of the radioactive source, preferably in the shape of a circular arc, and the suction nozzle is connected with a vacuum generator (not shown in the figure) through an air pipe connecting column 9 arranged on the sliding table 4, and the vacuum generator is provided with a pressure switch and is controlled by a control system to act or not.
Preferably, the workbench is of a box structure and is arranged on the frame, and the bottom of the frame is also provided with a bearing wheel 14.
Preferably, the detector 10 is arranged in a metal box body, a detector protective cover is further arranged on the metal box body, the protective cover is taken away to leak the detector when the measuring device is used, and the protective cover is covered after the use is finished.
Preferably, the control system further comprises a storage device and a display device, wherein the storage device is used for storing detected data, and the display device can be a touch screen or an intelligent terminal screen and can set control parameters or display the detection process, so that the detection monitoring is realized.
Preferably, the unqualified radioactive source recovery disc is an open metal box body, soft materials are arranged in the metal box body, and the soft materials can play a role in buffering the radioactive source placed in the box body.
Example 2
The embodiment discloses a full-automatic detection method for a radioactive source, which can be used in the full-automatic detection device for the radioactive source, and the full-automatic detection method for the radioactive source comprises the following steps:
step 1, placing the prepared radioactive sources into the source disc 12 to be detected according to an arrangement sequence;
in the step 2, the step of mixing the raw materials, sequentially grabbing radioactive sources on the source disc 12 to be detected by using the grabbing system;
step 3, moving the radioactive source above the detector 10 through the grasping system, and stopping the radioactive source above the detector for a set time to measure the activity;
step 4, judging whether the activity of the radioactive source is qualified or not through a control system, and if so, placing the radioactive source back to the original position of the source disc 12 to be detected;
and 5, repeating the steps 2-4 until the radioactive source in the source disc to be detected is measured, wherein the control system stores the detection data.
Specifically, firstly, the prepared radioactive sources are placed in the source disc 12 to be detected according to the arrangement sequence, and then the source disc 12 to be detected is placed at the appointed position of the workbench; then, the gripping devices such as the suction nozzle 8 for positioning the original point and the like can move to the position numbered as 1 on the source disc 12 to be measured, the suction nozzle 8 can move downwards along with the sliding table 4, and the vacuum generator generates negative pressure to suck the radioactive source and move to the initial height; s3, the sliding table 4 moves along the transverse sliding rail and the vertical sliding rail along with the longitudinal sliding rail 3, so that the absorbed radioactive source is transferred to the upper side of the detector 10, the radioactive source stays above the detector 10 for a set time to measure activity, whether the activity of the radioactive source is qualified or not is judged, if the activity of the radioactive source is qualified, the suction nozzle 8 returns to the position No. 1, the radioactive source is placed into the groove at the position No. 1, and if the activity of the radioactive source is unqualified, the suction nozzle 8 can place the radioactive source into the unqualified radioactive source recovery disc 11. And repeating the steps until the radioactive source in the source disc 12 to be measured is measured, and storing the measured data by the control software.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (1)
1. The full-automatic detection method of the radioactive source is characterized in that the full-automatic detection device of the radioactive source comprises a workbench, a grabbing system, a detector, a source disc to be detected and a control system, wherein the grabbing system, the detector and the source disc to be detected are arranged on the workbench; wherein the content of the first and second substances,
the source disc to be detected is used for placing a plurality of radioactive sources and receiving the radioactive sources qualified for detection; a groove in a certain shape is formed in the source disc to be detected, and the size and the shape of the groove are the same as those of the radioactive source and are used for fixing the radioactive source;
the grabbing system is used for grabbing the radioactive sources placed on the source disc to be detected according to the arrangement sequence of the radioactive sources to realize the movement of the radioactive sources;
the gripping system is a three-dimensional gripping system and is driven by any one of the following modes: air-driven, electric-driven, or electric hybrid-driven;
the three-dimensional grabbing system comprises a vertical sliding rail fixedly arranged on the workbench, a transverse sliding rail is arranged on the vertical sliding rail in a sliding manner, a longitudinal sliding rail is arranged on the transverse sliding rail in a sliding manner, a sliding table is arranged on the longitudinal sliding rail in a sliding manner, and a grabbing device is arranged at the bottom of the sliding table;
the gripping device is a suction nozzle which is arranged below the sliding table, the shape of the head of the gripping device is matched with that of the radioactive source, and the gripping device is connected with a vacuum generator through an air pipe connecting column arranged on the sliding table;
the transverse sliding rail is driven by a first stepping motor and a screw rod, the longitudinal sliding rail is driven by a second stepping motor and a screw rod, and the sliding table is driven by a third stepping motor and a screw rod;
the detector is used for detecting each radioactive source grabbed above the detector by the grabbing system;
the detector is arranged in the metal box body, and a detector protective cover is also arranged on the metal box body;
the control system is used for controlling the grabbing system and/or the detector, judging whether the activity of the radioactive source is qualified or not according to the detection result of the detector, and storing the detected data;
the control system also comprises a storage device and a display device; the storage device is used for storing detected data, and the display device is a touch screen or an intelligent terminal screen and can set control parameters or display the detection process, so that the detection is monitored;
the full-automatic radioactive source detection device also comprises an unqualified radioactive source recovery disc, wherein the unqualified radioactive source recovery disc is used for receiving the radioactive source with unqualified activity through the grabbing system, an open metal box body is selected as the unqualified radioactive source recovery disc, a soft material is arranged in the metal box body, and the soft material is used for protecting the unqualified radioactive source;
the workbench is of a box body structure and is arranged on the rack, and the bottom of the rack is also provided with a bearing wheel;
the full-automatic detection method of the radioactive source comprises the following steps:
step 1, placing the prepared radioactive sources into the source disc to be detected according to an arrangement sequence;
step 2, sequentially grabbing radioactive sources on the source disc to be detected by using the grabbing system;
step 3, moving the radioactive source to the position above the detector through the grabbing system, and stopping the radioactive source above the detector for a set time to measure the activity;
step 4, judging whether the activity of the radioactive source is qualified or not through a control system, if so, placing the radioactive source back to the original position of the source disc to be detected, and if not, placing the radioactive source into a unqualified radioactive source recovery disc;
and 5, repeating the steps 2-4 until the radioactive source in the source disc to be detected is measured, wherein the control system stores the detection data.
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| CN207628750U (en) * | 2017-11-08 | 2018-07-20 | 中冶南方工程技术有限公司 | Expect sample bucket sorting system |
| CN111617974A (en) * | 2018-12-13 | 2020-09-04 | 青岛东卡环保工程技术有限公司 | Movable radioactive waste sorting device and using method thereof |
| CN212149698U (en) * | 2020-04-20 | 2020-12-15 | 无锡市科鼎包装科技有限公司 | Electronic component tray |
| CN212663615U (en) * | 2020-07-03 | 2021-03-09 | 任新雯 | Clinical laboratory uses sample processing apparatus |
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