CN104318965B - Dry-method strong-gamma source storing and driving device - Google Patents
Dry-method strong-gamma source storing and driving device Download PDFInfo
- Publication number
- CN104318965B CN104318965B CN201410560823.XA CN201410560823A CN104318965B CN 104318965 B CN104318965 B CN 104318965B CN 201410560823 A CN201410560823 A CN 201410560823A CN 104318965 B CN104318965 B CN 104318965B
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- China
- Prior art keywords
- shield
- shutter
- drawer
- cylinder
- drawer type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
Abstract
The invention relates to the technical field of construction of gamma ray reference radiation sites and provides a dry-method strong-gamma source storing and driving device. The dry-method strong-gamma source storing and driving device comprises a lead shield and a driving air cylinder, and the lead shield is composed of a main shield, a shield shutter and a drawer type shield. The drawer type shield is arranged in the middle of the main shield via a slide rail, one end of the drawer type shield is connected with a drawer driving air cylinder, one side of the main shield is provided with an emergence hole, the shield shutter is arranged at the opposite position of the emergence hole, and one end of the shield shutter is connected with the shutter driving air cylinder. The dry-method strong-gamma source storing and driving device pneumatically driven is simple in structure, convenient to operate and small in operation space, and is provided with automatic resetting and safety interlocking functions.
Description
Technical field
The present invention relates to gamma-rays Reference radiation field construction technique field, specifically a kind of dry method strong γ source storage and
Driving means.
Background technology
Gamma-rays Reference radiation field is mainly used in the calibration of radiation protection dosage instrument and dose rate instrument, the quarter of personnel dosimeter
Spend, determine the energy response of dosemeter and dose rate instrument.Set up gamma-rays Reference radiation field to be by radiation protection research and answer
Premise and basis.At present, domestic only individually large-scale scientific research institution establish gamma-rays Reference radiation field.
The storage of γ source and driving means are requisite parts in gamma-rays Reference radiation field, are mainly used in storing
Radioactive source is driven to carry out the operation of outgoing and return in radioactive source and test.Radioactive source has very strong nocuity in itself and wears
Permeability, at present, the storage of China γ source and drive mechanism are divided into two kinds of dry and wet, wherein in the majority in a wet process.
Wet method formula device typically requires in irradiation interior setting storage source well, shields γ with certain thickness layer of diw
Ray, the turnover of radioactive source is completed by rope traction source frame.The installation cost of wet method formula device is relatively low, and structure is simple,
But need to arrange special experimenter, continue water periodically to storage source well and check the water quality of internal deionized water；Meanwhile, steel wire
The in-placing precision of rope hoisting mechanism and reliability are all relatively low.And, if strong γ source will be stored, need very big well, take up an area
Area is big.Therefore, wet method formula device can not meet field storage and the demand driving strong γ source and engineer applied.
Content of the invention
The purpose of the present invention is exactly to overcome above-mentioned weak point of the prior art, providing a kind of dry method strong γ source to store
Deposit and driving means, by pure pneumatic actuation, structure is simple, and easy to operate, operating space is less, is also equipped with automatically simultaneously for this device
The function of resetting with safety interlocking.
In order to solve above-mentioned technical problem, the purpose of the present invention is achieved by the following technical measures：A kind of dry method
The storage of strong γ source and driving means, include lead screen body, drive cylinder, described lead screen body by main shield body, shield shutter and
Drawer type shield forms, and described drawer type shield is erected in the middle part of main shield body by slide rail, drawer type shield one end
Cylinder is driven to be connected with drawer, described main shield body one side is provided with perforation hole, is provided with shielding shutter with perforation hole relative to place,
Shielding shutter one end drives cylinder to be connected with shutter.
In technique scheme, described main shield body is arranged on fixed pedestal, and described drawer drives cylinder and shutter
Cylinder is driven to be respectively arranged in cylinder fixed seat, described cylinder fixed seat is arranged on fixed pedestal.
In technique scheme, described shielding shutter bottom is provided with mechanical wheel, is erected on a horizontal guide rail.
In technique scheme, described main shield body is being fitted place and set respectively with shielding shutter and drawer type shielding body phase
There are fast door limit switch and drawer limit switch.
In technique scheme, described lead screen body is used for shielding the gamma-rays that strong gamma ray radiator produces, material master
Lead to be, the thickness of lead is calculated and determined by monte carlo method, such as：The gamma ray radiator of 50ci at least adopts 150 thickness
Lead layer shielded, the gamma ray radiator of 800ci is at least shielded using the lead layer of 270 thickness, ensure that shielding is external
Surface dose rate in the safe range of national requirements.
In technique scheme, described shielding shutter is used for closing and open the perforation hole of radioactive source.Shielding shutter
Motion controlled by pneumatic push-pull type structure, power source is that shutter drives cylinder, and the distance that air-leg is released every time
Identical it is ensured that the position of each positioning of shielding shutter is all consistent.By the stretching motion of cylinder, can achieve shielding shutter
Left and right movement, thus realize unlatching and the closure of perforation hole.The design of bottom mechanical wheel is it is ensured that shielding shutter is capable of
Accurately move along a straight line and operate steadily.
In technique scheme, described drawer type shielding is provided with strong gamma ray radiator in vivo, and radioactive source can be with taking out
The motion of drawer formula shield and move.The motion of drawer type shield to be controlled using pneumatic push-pull type structure, and power source is to take out
Drawer drives cylinder, and each distance released of air-leg is identical it is ensured that the terminal of each motion of radioactive source is all consistent, thus
Ensure that the accuracy of calibration facility.The bottom of described drawer type shield is provided with rail plate, in main shield body
Guide rail is a pair of primary and secondary rail, by the stretching motion of cylinder, drawer type shield can left and right movement, thus realizing radioactive source
Outgoing and return.The design of bottom primary and secondary rail is it is ensured that drawer type shield is capable of accurately moving along a straight line and running
Steadily.
In above-mentioned design, described driving cylinder is respectively provided with auto-reset function, that is, work as emergency（As broken
Electricity）During generation, cylinder is driven to automatically return to initial bit.Shutter drives cylinder to return initial bit, can make driving shielding shutter close, enter
And close radioactive source perforation hole；Drawer drives cylinder to return initial bit, driving drawer type shield can be made to close, and then make radioactive source
Return to mask bit.
In above-mentioned design, the status information of described limit switch is with high safety with radiation field chain, with guarantor
Member's safety.When drawer limit switch obtains electric and fast door limit switch dead electricity, represent that radioactive source is in opening, now personnel
Will be unable to enter in radiation field；When drawer limit switch dead electricity and when fast door limit switch obtains electric, represent that radioactive source is in shielding
State, now personnel can enter safely in radiation field, place equipment to be calibrated and plant maintenance.
Dry method strong γ source storage of the present invention and driving means, by pure pneumatic actuation, structure is simple, easy to operate, and operation is empty
Between less, be also equipped with automatically reseting simultaneously and safety interlocking function.
Brief description
Fig. 1 is the storage of dry method of the present invention strong γ source and the front of frame for movement of driving means and right side schematic view.
Fig. 2 is the storage of dry method of the present invention strong γ source and the front of frame for movement of driving means and leftschematic diagram.
Wherein：1. shield fixed seat, 2. main shield body, 3. shield shutter, 4. shutter cylinder fixed seat, 5. shutter driving
Cylinder, 6. drawer cylinder fixed seat, 7. drawer driving cylinder, 8. drawer type shield, 9. drawer limit switch, 10. fast thresholding
Bit switch.
Specific embodiment
Below in conjunction with drawings and Examples, the technical scheme in the present invention is clearly and completely described.
As shown in Figure 1 and Figure 2, the present embodiment provide a kind of dry method strong γ source storage and driving means, including lead screen body,
Drive cylinder, fixed pedestal and limit switch.
Described lead screen body is made up of main shield body 2, shielding shutter 3 and drawer type shield 8, and described driving cylinder is by fast
Door drives cylinder 5 and drawer to drive cylinder 7 to form, and described limit switch is by drawer limit switch 9 and 10 groups of fast door limit switch
Become.Described shutter cylinder fixed seat 4 and drawer cylinder fixed seat 6 are arranged on fixed pedestal 1.
The bottom of shielding shutter 3, equipped with mechanical wheel, is fixed on the guide rail of shutter cylinder fixed seat 4, shields shutter 3 one end
Drive cylinder 5 to be connected with shutter, moved by the stretching motion of cylinder.
Strong gamma ray radiator is installed in drawer type shield 8, bottom is equipped with the guide rail in rail plate, with main shield body 2
For a pair of primary and secondary rail, drawer type shield 8 one end is driven cylinder 7 to be connected with drawer, is moved by the stretching motion of cylinder.
The workflow of the present embodiment is as follows：Drawer drives cylinder 7 to promote drawer type shield 8 to move left → drawer type screen
Cover after body 8 puts in place, touch drawer limit switch 9 and produce electric signal prompting radioactive source put in place → shutter drives cylinder 5 to drive
Dynamic shielding shutter 3 moves to right, and opens the perforation hole of main shield body 2, unclamps fast door limit switch 10 simultaneously and produce electric signal prompting
Test is opened → proceeded by shutter.
Off-test → shutter drives cylinder 5 to drive shielding shutter 3 to move to left, and closes the perforation hole → shielding of main shield body 2
After shutter 3 puts in place, touch fast door limit switch 10 and produce electric signal prompting shutter be turned off → drawer drive cylinder 7 promote
Drawer type shield 8 moves right, and makes radioactive source return to mask bit, unclamps drawer limit switch 9 simultaneously and produces electric signal prompting
Radioactive source has returned mask bit → end-of-job.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, done etc., should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of dry method strong γ source storage and driving means, including lead screen body, drive cylinder, it is characterized in that：Described lead screen
Body is made up of main shield body, shielding shutter and drawer type shield, and described drawer type shield is erected at main shield by slide rail
In the middle part of body, drawer type shield one end and drawer drive cylinder to be connected, and described main shield body one side is provided with perforation hole, and go out
Perforation is provided with shielding shutter relative to place, and shielding shutter one end drives cylinder to be connected with shutter；On described main shield body with shielding
Shutter and drawer type shielding body phase are fitted place and are respectively equipped with fast door limit switch and drawer limit switch, described fast door limit switch and
Drawer limit switch is chain with radiation field safety devices.
2. the storage of dry method according to claim 1 strong γ source and driving means it is characterised in that：Described main shield body setting
On fixed pedestal, described drawer drives cylinder and shutter to drive cylinder to be respectively arranged in cylinder fixed seat, and described cylinder is solid
Reservation is arranged on fixed pedestal.
3. the storage of dry method according to claim 1 strong γ source and driving means it is characterised in that：Described shielding shutter bottom
It is provided with mechanical wheel, be erected on a horizontal guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410560823.XA CN104318965B (en) | 2014-10-21 | 2014-10-21 | Dry-method strong-gamma source storing and driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410560823.XA CN104318965B (en) | 2014-10-21 | 2014-10-21 | Dry-method strong-gamma source storing and driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104318965A CN104318965A (en) | 2015-01-28 |
| CN104318965B true CN104318965B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410560823.XA Active CN104318965B (en) | 2014-10-21 | 2014-10-21 | Dry-method strong-gamma source storing and driving device |
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| Country | Link |
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| CN (1) | CN104318965B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770384B (en) * | 2016-11-21 | 2023-08-22 | 云南电网有限责任公司电力科学研究院 | Gamma ray removes ray testing platform |
| CN116386923B (en) * | 2023-03-24 | 2024-01-16 | 常州市大成真空技术有限公司 | Radiation shielding device of radioactive source |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203179563U (en) * | 2013-03-25 | 2013-09-04 | 南京中纽科技有限公司 | Radioactive source protecting device with optimized structure |
| CN103454666A (en) * | 2012-05-30 | 2013-12-18 | 中国辐射防护研究院 | Dosimeter panoramic exposure calibrating device |
| CN203376985U (en) * | 2013-08-15 | 2014-01-01 | 黑龙江省中贝技术有限公司 | Electric radioactive source lead tank |
| CN203462899U (en) * | 2013-07-29 | 2014-03-05 | 中国原子能科学研究院 | Pneumatic double-stroke shielding shutter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008008878A (en) * | 2006-06-27 | 2008-01-17 | Chiyoda Technol Corp | Calibrating device for dosemeter |
-
2014
- 2014-10-21 CN CN201410560823.XA patent/CN104318965B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454666A (en) * | 2012-05-30 | 2013-12-18 | 中国辐射防护研究院 | Dosimeter panoramic exposure calibrating device |
| CN203179563U (en) * | 2013-03-25 | 2013-09-04 | 南京中纽科技有限公司 | Radioactive source protecting device with optimized structure |
| CN203462899U (en) * | 2013-07-29 | 2014-03-05 | 中国原子能科学研究院 | Pneumatic double-stroke shielding shutter |
| CN203376985U (en) * | 2013-08-15 | 2014-01-01 | 黑龙江省中贝技术有限公司 | Electric radioactive source lead tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104318965A (en) | 2015-01-28 |
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Effective date of registration: 20151204 Address after: 19 No. 430205 Hubei province Wuhan city Jiangxia District Yangqiao Lake Avenue Applicant after: Wuhan Haiwang Nuclear Energy Equipment Engineering Co., Ltd. Address before: 19 No. 430205 Hubei province Wuhan city Jiangxia District Development Zone canglongdao Yangqiao Lake Avenue Applicant before: No.719 Inst. China Shipping Heavy Industry Group Corp. |
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