CN110570971B - Transformation method suitable for electronic accelerator equipment based on cobalt source irradiation shielding device - Google Patents
Transformation method suitable for electronic accelerator equipment based on cobalt source irradiation shielding device Download PDFInfo
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- CN110570971B CN110570971B CN201711465665.XA CN201711465665A CN110570971B CN 110570971 B CN110570971 B CN 110570971B CN 201711465665 A CN201711465665 A CN 201711465665A CN 110570971 B CN110570971 B CN 110570971B
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- cobalt source
- electron accelerator
- source irradiation
- accelerator
- cobalt
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- 229910017052 cobalt Inorganic materials 0.000 title claims abstract description 134
- 239000010941 cobalt Substances 0.000 title claims abstract description 134
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000011426 transformation method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004566 building material Substances 0.000 claims abstract description 14
- 230000005855 radiation Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 238000009420 retrofitting Methods 0.000 claims 3
- 238000012545 processing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009466 transformation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 7
- 230000002285 radioactive effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002715 modification method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/10—Irradiation devices with provision for relative movement of beam source and object to be irradiated
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Particle Accelerators (AREA)
Abstract
The invention provides a transformation method suitable for electronic accelerator equipment based on a cobalt source irradiation shielding device, which comprises the following steps: step (1): filling the cobalt source well by using building materials, and covering a cobalt source irradiation chamber on the cobalt source well; step (2): fixing an electron accelerator, fixedly installing the electron accelerator on the cobalt source irradiation chamber or the cobalt source water well in the step (1), and installing a scanning window at the free end of the electron accelerator; and (3): the invention improves the original cobalt source irradiation device into a working field of an electron accelerator by using the shielding effect of the original cobalt source irradiation device, so that the original cobalt source irradiation enterprise can continuously engage in the irradiation processing industry, the transformation problem of the cobalt source irradiation processing enterprise is solved at the lowest cost, and the secondary utilization problem of the cobalt source irradiation device is solved.
Description
Technical Field
The invention belongs to the technical field of radiation shielding device reconstruction, and particularly relates to a reconstruction method suitable for electronic accelerator equipment based on a cobalt source radiation shielding device.
Background
The radiation shielding device of cobalt source is a place for storing cobalt-60 radioactive source, and is used for irradiating food, medicine and high-molecular material, etc. to attain the goal of disinfection and sterilization or material modification, and its wall body and roof are made up by using high-grade steel bar and cement, so that it can implement the effect of shielding gamma ray of cobalt-60 radioactive source, and in the course of use, the cobalt-60 radioactive source can continuously release ray and continuously attenuate, so that every one to two years of cobalt source radiation plant can be supplemented by purchasing cobalt-60 radioactive source, and for safety consideration, the supervision and approval of cobalt-60 radioactive source by environmental protection department are progressively stricter, and in addition, some small and medium-sized cobalt source radiation devices have a certain safety hazard in the radiation mechanical design, and are limited in purchasing cobalt-60 radioactive source, and even face the shut-down situation.
As an electron accelerator for replacing a cobalt-60 radioactive source to carry out industrial irradiation, the energy of the electron accelerator is below 10MeV, a cobalt source irradiation shielding device can completely shield electron beams or X rays generated by the electron accelerator, the electron accelerator has the advantage that radioactivity is not generated after power failure, the electron accelerator is safer and more reliable, the processing product is rapid, the utilization rate of the rays is high, and the electron accelerator is the direction of future development of the irradiation industry.
The invention is based on the original cobalt source irradiation device, fully utilizes the shielding effect of the original shielding structure on rays, and after the irradiation shielding device is transformed, the irradiation shielding device is suitable for the structural requirements of the electronic accelerator equipment, after the cobalt source irradiation shielding device is transformed into the electronic accelerator equipment field, the cost is effectively saved, the original small and medium-sized cobalt source irradiation factory can be converted into the use of the electronic accelerator to continue to engage in the irradiation processing industry, the secondary utilization problem of the cobalt source irradiation device is solved, and meanwhile, a way is provided for the survival of the cobalt source irradiation enterprises.
Disclosure of Invention
The invention aims to solve the problem of providing a transformation method suitable for electronic accelerator equipment based on a cobalt source irradiation shielding device, so that the transformed cobalt source irradiation shielding device is suitable for production, debugging, maintenance and operation of the electronic accelerator equipment, the cost is effectively saved, and the secondary utilization of the irradiation shielding device is realized.
In order to solve the technical problems, the invention adopts the technical scheme that: the transformation method suitable for the electron accelerator equipment based on the cobalt source irradiation shielding device comprises the following steps:
step (1): filling a cobalt source water well by using a building material, wherein a cobalt source irradiation chamber is arranged on the cobalt source water well;
step (2): fixing an electron accelerator, fixedly installing the electron accelerator on the cobalt source irradiation chamber or the cobalt source water well in the step (1), and installing a scanning window at the free end of the electron accelerator;
and (3): and a conveying device is arranged on the ground and is arranged along the side wall of the cobalt source irradiation chamber, and the scanning window is aligned with the conveying device.
Further, in the step (1), the cobalt source water well is partially filled with building materials, and an irradiation cavity is formed in the cobalt source water well; and (2) fixing the electron accelerator at the bottom of the irradiation cavity or fixedly suspending the electron accelerator in the irradiation cavity through a steel plate, and extending the installed scanning window into the cobalt source irradiation chamber.
Further, in the step (1), the cobalt source water well is completely filled with building materials; vertically and fixedly mounting an electron accelerator on the inner side wall of a cobalt source irradiation chamber in the step (2); and (4) setting the transmission direction of the transmission device to be vertical to the central axis of the scanning window in the step (3).
Further, in the step (1), the cobalt source water well is completely filled with building materials; fixedly installing an electron accelerator at the top end of the outer wall of a cobalt source irradiation chamber, and covering a first shielding chamber outside the electron accelerator, wherein the free end of the electron accelerator extends to the inside of the cobalt source irradiation chamber and is provided with a scanning window; and (4) setting the scanning window above the conveying device in the step (3).
Further, in the step (1), the cobalt source water well is completely filled with building materials; fixedly installing an electron accelerator on the outer side wall of the cobalt source irradiation chamber, and covering a second shielding chamber outside the electron accelerator, wherein the free end of the electron accelerator is perpendicular to the side wall of the cobalt source irradiation chamber, extends to the inside of the cobalt source irradiation chamber and is provided with a scanning window, and the installed scanning window and the electron accelerator are coaxially arranged; and (4) setting the transmission direction of the transmission device to be vertical to the central axis of the scanning window in the step (3).
Further, a part of the conveyor located outside the cobalt source irradiation room is disposed in the goods yard.
Further, the electron accelerator is a linear electron accelerator, a terrestrial nano accelerator or a plum blossom petal type accelerator.
Further, the conveying device comprises a suspension chain type conveying device, an above-ground rail type conveying device or a flat plate trolley type conveying device.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. at present, many small and medium-sized cobalt source irradiation devices face the situation of shutdown, the original cobalt source irradiation device is transformed into a working field of an electron accelerator by utilizing the shielding effect of the original cobalt source irradiation device, so that the original cobalt source irradiation enterprises can continue to engage in the irradiation processing industry, the transformation problem of the cobalt source irradiation processing enterprises is solved at the lowest cost, and the secondary utilization problem of the cobalt source irradiation device is solved;
2. the invention can form the working fields of the electron accelerators with different installation forms by the method for improving the cobalt source irradiation device, so that the electron accelerators can be suitable for installation environments with different irradiation processing requirements, thereby not only realizing convenient installation and low installation cost, but also greatly increasing the application range of the improved cobalt source irradiation device and being convenient for popularization and use.
Drawings
FIG. 1 is a schematic top view of the laying path of the conveying device in the raw cobalt source irradiation chamber.
Fig. 2 is a schematic structural diagram of embodiment 1 of the modification method of the electron accelerator apparatus based on the cobalt source radiation shielding device of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the modification method for the electron accelerator apparatus based on the cobalt source radiation shielding device of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 3 of the modification method for the electron accelerator apparatus based on the cobalt source radiation shielding device of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 4 of the modification method for the electron accelerator apparatus based on the cobalt source radiation shielding device of the present invention.
In the figure: 1-a building material; 2-cobalt source water well; 3-a cobalt source irradiation chamber; 4-an electron accelerator; 5-a scanning window; 6-a conveying device; 7-irradiating the cavity; 8-a first shielded room; 9-second shielded room.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
The invention provides a transformation method suitable for electronic accelerator equipment based on a cobalt source irradiation shielding device, which comprises the following steps:
step (1): filling a cobalt source water well by using a building material, wherein a cobalt source irradiation chamber is arranged on the cobalt source water well;
step (2): fixing an electron accelerator, fixedly installing the electron accelerator on the cobalt source irradiation chamber or the cobalt source water well in the step (1), and installing a scanning window at the free end of the electron accelerator;
and (3): and a conveying device is arranged on the ground and is arranged along the side wall of the cobalt source irradiation chamber, and the scanning window is aligned with the conveying device.
As shown in fig. 1, a schematic view of a top view structure of a laying path of a conveyor device arranged in a raw cobalt source radiation shielding device, which is used for sterilizing or modifying materials under the radiation action of an electron accelerator, and simultaneously combines the shielding action of the side wall of a cobalt source radiation chamber in the raw cobalt source radiation shielding device, greatly utilizes the structure of the raw cobalt source radiation shielding device, and improves the secondary utilization rate of the raw cobalt source radiation shielding device.
Example 1
A transformation method suitable for an electron accelerator device based on a cobalt source irradiation shielding device comprises the following steps of (1): partially filling the cobalt source well 2 by using the building material 1, so that an irradiation cavity 7 is formed in the cobalt source well 2, and a cobalt source irradiation chamber 3 is arranged on the cobalt source well 2; step (2): fixing a linear electron accelerator at the bottom end of a cobalt source water well 2 or fixedly suspending the linear electron accelerator in an irradiation cavity 7 through a steel plate, and installing a scanning window 5 at the free end of the linear electron accelerator, wherein the installed scanning window 5 extends into a cobalt source irradiation chamber 3; and (3): as shown in the structural schematic diagram of the modified linear electron accelerator work yard shown in fig. 2, a part of the conveying device 6 located outside the cobalt source irradiation chamber 3 is arranged in a goods stacking yard, goods are placed on the conveying device 6, the goods are conveyed to the position below the scanning window 5 in the cobalt source irradiation chamber 3 to be vertically irradiated, and the scanning window 5 can also be located below the conveying device 6 to vertically irradiate the goods.
Example 2
A transformation method suitable for an electron accelerator device based on a cobalt source irradiation shielding device comprises the following steps of (1): completely filling the cobalt source well 2 by using the building material 1, and arranging a cobalt source irradiation chamber 3 on the cobalt source well 2; step (2): vertically and fixedly mounting a linear electron accelerator on the inner side wall of a cobalt source irradiation chamber 3, and mounting a scanning window 5 at the free end of the linear electron accelerator; and (3): the conveying device 6 is arranged on the ground, the conveying device 6 is arranged along the side wall of the cobalt source irradiation chamber 3, the conveying direction of the conveying device 6 is perpendicular to the central axis of the scanning window 5, namely the scanning window 5 is positioned at the side end of the conveying device 6, as shown in the structural schematic diagram of the modified linear electron accelerator work field shown in fig. 3, the part, positioned outside the cobalt source irradiation chamber 3, of the conveying device 6 is arranged in a goods stacking field, goods are placed on the conveying device 6, the goods are conveyed into the cobalt source irradiation chamber 3 and are horizontally irradiated by the scanning window 5, and then the conveying device 6 conveys the goods to the outside of the cobalt source irradiation chamber 3.
Example 3
A transformation method suitable for an electron accelerator device based on a cobalt source irradiation shielding device comprises the following steps of (1): completely filling the cobalt source well 2 by using the building material 1, and arranging a cobalt source irradiation chamber 3 on the cobalt source well 2; step (2): fixedly installing a plum-petal type electron accelerator on the top end of the outer wall of the cobalt source irradiation chamber 3, covering a first shielding chamber 8 outside the plum-petal type electron accelerator, extending the free end of the plum-petal type electron accelerator to the inside of the cobalt source irradiation chamber 3 and installing a scanning window 5; and (3): be equipped with conveyer 6 on subaerial, conveyer 6 sets up along the lateral wall of cobalt source irradiation room 3, scanning window 5 is located conveyer 6's top, as the structural schematic diagram of the plum blossom petal type electron accelerator workplace after the transformation that shows in figure 4, first shielding room 8 plays good shielding and guard action to the plum blossom petal type electron accelerator, the part that conveyer 6 is located cobalt source irradiation room 3 outside sets up in the goods yard, place the goods on conveyer 6, convey the goods and enter into cobalt source irradiation room 3, scanning window 5 extends to cobalt source irradiation room 3 in from the top of cobalt source irradiation room 3, carry out vertical irradiation to the goods that convey on conveyer 6.
Example 4
A transformation method suitable for an electron accelerator device based on a cobalt source irradiation shielding device comprises the following steps of (1): completely filling the cobalt source well 2 by using the building material 1, and arranging a cobalt source irradiation chamber 3 on the cobalt source well 2; step (2): fixedly installing a plum-petal type electron accelerator on the outer side wall of a cobalt source irradiation chamber 3, and covering a second shielding chamber 9 outside the plum-petal type electron accelerator, wherein the free end of the plum-petal type electron accelerator is vertical to the side wall of the cobalt source irradiation chamber 3 and extends to the inside of the cobalt source irradiation chamber 3, and a scanning window 5 is installed, and the installed scanning window 5 and the plum-petal type electron accelerator are coaxially arranged; and (3): the conveying device 6 is arranged on the ground, the conveying device 6 is arranged along the side wall of the cobalt source irradiation chamber 3, the conveying direction of the conveying device 6 is perpendicular to the central axis of the scanning window 5, namely the scanning window 5 is positioned at the side end of the conveying device 6, as shown in the structural schematic diagram of the reconstructed plum-petal-shaped electronic accelerator working field shown in fig. 5, the second shielding chamber 9 plays a good role in shielding and protecting the plum-petal-shaped electronic accelerator, the part of the conveying device 6 positioned outside the cobalt source irradiation chamber 3 is arranged in a goods stacking field, goods are placed on the conveying device 6, the goods are conveyed into the cobalt source irradiation chamber 3 to be irradiated horizontally by the scanning window 5, and then the conveying device 6 conveys the goods to the outside of the cobalt source irradiation chamber 3.
At present, many middle and small-sized cobalt source irradiation devices face the situation of shutdown, the invention reforms the original cobalt source irradiation device into a working field of an electron accelerator by utilizing the shielding effect of the original cobalt source irradiation device, so that the original cobalt source irradiation enterprises can continue to engage in the irradiation processing industry, the transformation problem of the cobalt source irradiation processing enterprises is solved with the lowest cost, and the secondary utilization problem of the cobalt source irradiation device is solved.
The invention can form the working fields of the electron accelerators with different installation forms by the method for improving the cobalt source irradiation device, so that the electron accelerators can be suitable for installation environments with different irradiation processing requirements, thereby not only realizing convenient installation and low installation cost, but also greatly increasing the application range of the improved cobalt source irradiation device and being convenient for popularization and use.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (4)
1. The transformation method suitable for the electronic accelerator equipment based on the cobalt source irradiation shielding device is characterized in that: the method comprises the following steps:
step (1): filling a cobalt source water well by using a building material, wherein a cobalt source irradiation chamber is arranged on the cobalt source water well;
step (2): fixing an electron accelerator, fixedly installing the electron accelerator on the cobalt source irradiation chamber or the cobalt source water well in the step (1), and installing a scanning window at the free end of the electron accelerator;
and (3): a conveying device is arranged on the ground and is arranged along the side wall of the cobalt source irradiation chamber, and the scanning window is aligned with the conveying device;
in the step (1), a building material is used for partially filling a cobalt source well, and an irradiation cavity is formed in the cobalt source well; and (2) fixing the electron accelerator at the bottom of the irradiation cavity or fixedly suspending the electron accelerator in the irradiation cavity through a steel plate, and extending the installed scanning window into the cobalt source irradiation chamber.
2. The method of claim 1 for retrofitting an electron accelerator facility based on a cobalt source radiation shield, wherein: the part of the conveyor device outside the cobalt source irradiation chamber is arranged in the goods yard.
3. The method of claim 1 for retrofitting an electron accelerator facility based on a cobalt source radiation shield, wherein: the electron accelerator is a linear electron accelerator, a terrestrial nano accelerator or a plum blossom petal type accelerator.
4. The method of claim 1 for retrofitting an electron accelerator facility based on a cobalt source radiation shield, wherein: the conveying device comprises a suspension chain type conveying device, an above-ground track type conveying device or a flat plate trolley type conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711465665.XA CN110570971B (en) | 2017-12-28 | 2017-12-28 | Transformation method suitable for electronic accelerator equipment based on cobalt source irradiation shielding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711465665.XA CN110570971B (en) | 2017-12-28 | 2017-12-28 | Transformation method suitable for electronic accelerator equipment based on cobalt source irradiation shielding device |
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| CN110570971A CN110570971A (en) | 2019-12-13 |
| CN110570971B true CN110570971B (en) | 2021-09-03 |
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| CN112768109A (en) * | 2021-01-28 | 2021-05-07 | 泛华检测技术有限公司 | Mobile electronic irradiation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2196320Y (en) * | 1994-06-03 | 1995-05-03 | 北京市射线应用研究中心 | Cobalt radiation source alarm device with infrared probe |
| CN2317596Y (en) * | 1997-11-22 | 1999-05-05 | 深圳奥沃国际科技发展有限公司 | Small accelerator irradiation device |
| AU2002347834A1 (en) * | 2001-10-05 | 2003-04-22 | Idaho State University | A method of inhibiting sprouting in plant products |
| CN101315340B (en) * | 2007-05-28 | 2010-12-08 | 天津市技术物理研究所 | Processing method for raw wood irradiation quarantine |
| CN201044186Y (en) * | 2007-06-21 | 2008-04-02 | 天津市富辰高新技术公司 | Semi-underground irradiation processed protection device |
| CN101752020B (en) * | 2008-12-17 | 2011-12-28 | 同方威视技术股份有限公司 | System for irradiation processing high-energy electron beam having self-shielding radiation source |
| CN101640076B (en) * | 2009-08-19 | 2012-05-09 | 江苏达胜加速器制造有限公司 | Irradiating device of dual-rail trolley |
| CN206163135U (en) * | 2016-10-14 | 2017-05-10 | 天津市技术物理研究所 | Device is down restrainted to multi -functional electronic accelerator |
| CN206806038U (en) * | 2016-11-16 | 2017-12-26 | 北京三强核力辐射工程技术有限公司 | A kind of cobalt source irradiation devices |
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