CN110619968A - Movable shielding device - Google Patents
Movable shielding device Download PDFInfo
- Publication number
- CN110619968A CN110619968A CN201910862584.6A CN201910862584A CN110619968A CN 110619968 A CN110619968 A CN 110619968A CN 201910862584 A CN201910862584 A CN 201910862584A CN 110619968 A CN110619968 A CN 110619968A
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- China
- Prior art keywords
- assembly
- heavy metal
- metal plate
- shielding
- shielding device
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- 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.)
- Pending
Links
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 49
- 210000002105 tongue Anatomy 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 16
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005260 alpha ray Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005250 beta ray Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The invention provides a movable shielding device which comprises a movable chassis assembly, a support frame assembly arranged on the movable chassis assembly and a shielding body assembly detachably fixed on the support frame assembly, wherein the support frame assembly is provided with a framework in a herringbone ladder structure, the shielding body assembly is fixed on two sides of the framework, the shielding body assembly is formed by stacking and assembling a plurality of heavy metal plate assembly bodies and is in a detachable structure, and a relative step staggered joint structure is formed by joints between the adjacent heavy metal plate assembly bodies. The shielding body components are fixed on both sides of the framework, so the shielding device has higher protection equivalent weight; the shielding body assembly is detachably fixed on the supporting frame assembly, is formed by stacking and assembling a plurality of heavy metal plate assembly bodies and is of a detachable structure, so that the shielding body assembly can be spliced randomly, high protection equivalent and high movement flexibility as a temporary shielding device during the overhaul of nuclear power plant equipment can be guaranteed, and particularly in a complex nuclear power plant environment, the effect of the shielding body assembly is more outstanding.
Description
Technical Field
The invention relates to the field of radiation protection in nuclear industry, in particular to a movable shielding device.
Background
With the operation of a pressurized water reactor nuclear power plant, alpha, beta and gamma ray radiation hot spots are formed on pipelines and equipment at a plurality of operating positions in a nuclear island control area, and certain radiation shielding measures are required to reduce the external irradiation dose received by working personnel during the operation and maintenance of the equipment near the radiation hot spots.
At present, a nuclear power plant in China generally adopts lead skins or lead plates for radiation shielding, and the shielding mode has more problems. For shielding radioactive pipelines, lead coatings are generally wrapped outside the pipelines, the method requires that the pipelines cannot be too thin and too thick, the weight of the lead coatings cannot be borne by the pipelines, and the lead coatings for shielding can be fixed on the pipelines by using a large amount of adhesive tapes if the pipelines are too thick. In addition, the lead sheath wrapped after overhaul or the suspended lead plate mostly needs to be dismantled, a large amount of lead sheath or lead plate is consumed by repeated building and dismantling, and the installation and dismantling personnel can also accumulate high external irradiation dose.
At present, a movable neutron source shielding body is provided, which is arranged around a neutron source moving channel, and is mainly used for neutron radiation generated by neutron sources such as nuclear reactors, isotope neutron sources and accelerators in the operation process, although the radiation influence of the neutron source on the surrounding environment in the use process can be effectively reduced, the design structure of the device can not be used as a shielding solution for radiation hotspots such as gamma rays of nuclear power plant equipment, and the external radiation dose caused by temporary shielding and setting work during the maintenance of the nuclear power plant equipment to the setting and dismantling personnel can not be avoided.
Therefore, how to avoid the external radiation dose caused by temporary shielding and erecting work to the erecting and dismantling personnel during the overhaul period of the nuclear power plant equipment and quickly and flexibly solve the shielding problem of the on-site radiation hot spot of the nuclear power plant so as to enlarge the application range of the shielding device and effectively reduce the collective dose is an important subject in the field.
Disclosure of Invention
In order to solve the problems, the invention provides a movable shielding device which comprises a movable chassis assembly, a support frame assembly arranged on the movable chassis assembly and a shielding body assembly detachably fixed on the support frame assembly, wherein the support frame assembly is provided with a framework in a herringbone ladder structure, the shielding body assembly is fixed on two sides of the framework, the shielding body assembly is formed by stacking and assembling a plurality of heavy metal plate assembly bodies and is in a detachable structure, and a seam between adjacent heavy metal plate assembly bodies forms a relative ladder staggered joint structure.
The shielding body components are fixed on both sides of the framework in the herringbone ladder structure, so that the shielding device has higher protection equivalent weight; shielding body subassembly detachable is fixed in the support frame subassembly, and piles up the assembly by a plurality of heavy metal panel assembly body stromatolite and form and be detachable construction, therefore can splice wantonly, can guarantee as interim shielding device's high protection equivalent and high removal flexibility during nuclear power plant overhaul, especially in the complicated nuclear power plant environment that has more stair, ground obstacles such as pipeline, the effect of this kind of detachable, the shielding body subassembly of splicing wantonly seems more outstanding. The movable shielding device can be formed by the movable chassis component, the support component and the shielding body component, and can be moved freely, so that during the overhaul of equipment of a nuclear power plant, the shielding device is assembled at a waiting working point and directly pushed to a radiation hot point, and after an overhaul worker finishes the overhaul work, the shielding device is directly pushed away, and the movable shielding device serving as a temporary shielding device greatly reduces the collective dose of radiation from the assembling and disassembling stage and the overhaul stage.
Further, the skeleton has 4 pole settings, 4 the pole setting is averagely divided into two sets ofly and is located respectively the both sides of skeleton, 4 the horizontal pole is connected on the top of pole setting, and the bottom frame is connected to the bottom, each be equipped with a plurality of confessions in the pole setting the fixed block portion of heavy metal panel assembly body, block portion can be the couple. Furthermore, both sides of the framework are respectively provided with a criss-cross middle frame, the top end of the middle frame is connected with the cross rod, and the bottom end of the middle frame is connected with the bottom frame.
Furthermore, the top end and the bottom end of the heavy metal plate assembly body are provided with matching grooves and tongues, the heavy metal plate assembly bodies are stacked and assembled through the matching grooves and tongues, the left side and the right side of the heavy metal plate assembly body are respectively provided with a clamping piece, and the heavy metal plate assembly body is clamped on the support frame assembly through the clamping pieces on the left side and the right side, so that the shielding body assembly and the support frame assembly can be detachably connected. Furthermore, a top stop block is arranged on the upper portion of the heavy metal plate assembly body located on the uppermost layer of the stacked stacking assembly, and the top stop block fixes the heavy metal plate assembly body on the uppermost layer to the top end of the support frame assembly. Furthermore, the heavy metal plate assembly body is also provided with a handle so as to be convenient to assemble and disassemble.
Further, the movable chassis assembly comprises a bottom plate and a plurality of universal wheels arranged below the bottom plate. Furthermore, mobilizable chassis subassembly still includes a plurality of scalable anti-falling supporting legs, and is a plurality of scalable anti-falling supporting legs set up in a staggered manner the bottom plate below, therefore can increase crashproof stability when the workspace is placed, prevent that shield assembly from empting. Further, the below of bottom plate is equipped with the spout, scalable prevent that the landing leg is connected with support piece for the below and follows the spout carries out gliding slider, and is adjacent scalable prevent that the landing leg slides along opposite direction, therefore can prevent down in a plurality of directions as required.
Further, the bottom plate is perpendicular scalable prevent that landing leg slip direction's both ends are provided with respectively and supply the fixed pin to insert the connecting piece of establishing, can splice a plurality of portable shield assembly through the connecting piece to use the connection face to remove as the axis, guarantee that a plurality of portable shield assembly can surround into shielding structure such as circle, semicircle, with the complex environment that adapts to nuclear power plant's radiant heat point department.
Drawings
Fig. 1 is a perspective view of a mobile shielding device according to an embodiment of the present invention.
Fig. 2 is a perspective view of a movable floor assembly of the mobile shielding device of fig. 1.
Fig. 3 is a perspective view of a support assembly of the mobile shielding device of fig. 1.
Fig. 4 is a perspective view of the heavy metal plate assembly of the mobile shielding device of fig. 1.
Fig. 5 is a schematic view of two mobile shielding devices after assembly.
Fig. 6 is an enlarged view of the circled portion in fig. 5.
Description of the elements
100-a mobile shielding device; 10-a movable floor assembly; 11-a base plate; 13-a universal wheel; 15-a chute; 17-telescopic anti-falling supporting legs; 171-a slide; 173-a support; 30-a support frame assembly; 31-a backbone; 311-vertical rod; 313-a cross bar; 315-bottom frame; 317-middle frame; 33-an engaging portion; 50-a shield assembly; 51-heavy metal panel assemblies; 511-matching tongue and groove; 513-a clip; 515-a handle; 53-top stop; 70/70' -connector; 90-fixed pin
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It is to be noted that, unless otherwise explicitly defined, specific meanings of the industrial terms in the present invention may be understood as specific cases by those of ordinary skill in the art.
A movable type shielding apparatus of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a mobile shielding device 100 includes a movable chassis component 10, a support frame component 30 disposed on the movable chassis component 10, and a shielding body component 50 detachably fixed to the support frame component 30, where the support frame component 30 has a framework 31 in a herringbone ladder structure, the shielding body component 50 is fixed on two sides of the framework 31, the shielding body component 50 is formed by stacking and assembling a plurality of heavy metal plate assemblies 51 and is in a detachable structure, and a seam between adjacent heavy metal plate assemblies 51 forms a relative ladder staggered seam structure. The support frame assembly 30 is structurally supported as the whole mobile shielding device 100, and the bottom of the support frame assembly 30 is fixed on the movable chassis assembly 10, and the specific fixing mode can be a fixed connection mode known in the industry, and preferably, the support frame assembly 30 is fixed on the movable chassis assembly 10 in a detachable mode such as plugging, so that the appropriate support frame assembly 30 or the movable chassis assembly 10 can be selected according to the specific environment of the radiation hot spot of the nuclear power plant.
As shown in fig. 1 and 2, the movable floor assembly 10 includes a bottom plate 11 and a plurality of universal wheels 13, 4 shown in the figure, disposed below the bottom plate 11. The bottom plate 11 is further provided with a plurality of telescopic anti-falling legs 17, as shown in the figure, the number of the telescopic anti-falling legs 17 is 4, and the 4 telescopic anti-falling legs 17 are arranged below the bottom plate 11 in a staggered manner, so that the anti-collision stability can be improved when the mobile shielding device 100 is placed in a working area, and the mobile shielding device 100 is prevented from toppling over. Bottom plate 11's below is equipped with spout 15, scalable prevent that down landing leg 17 is connected with support piece 173 for the below and carries out gliding slider 171 along spout 15, adjacent scalable prevent down landing leg 17 slides along opposite direction, a plurality of scalable prevent down landing leg 17 can set for asynchronous operation, as shown in fig. 2, only 2 scalable prevent down landing leg 17 slides, therefore can select the scalable landing leg 17 that prevents of suitable number to prevent down in a plurality of directions according to actual need, scalable prevent down landing leg 17's slip accessible maintainer's manual operation, also can set up support piece 173 into the wheel that rolls as shown in fig. 2, when bottom plate 11 slides, the wheel that rolls also can roll thereby drive scalable prevent down landing leg 17 and slide along spout 15.
As shown in fig. 1 and fig. 3, the framework 31 has 4 vertical rods 311, the 4 vertical rods 311 are divided into two groups and located on two sides of the framework 31, the top ends of the 4 vertical rods 311 are connected to the cross rods 313, the cross rods 313 are two and two cross rods 313 fixedly connected, the bottom ends of the 4 vertical rods 311 are connected to the bottom frame 315, the vertical rods 311, the cross rods 311 and the bottom frame 315 form a main frame of the framework 31 and play a main supporting role, each vertical rod 311 is provided with a plurality of clamping portions 33 for fixing the heavy metal plate assembly 50, and the clamping portions 33 can be hooks. The two sides of the framework 31 are respectively provided with a criss-cross middle frame 317, the top end of the middle frame 317 is connected with a cross bar 313, the bottom end of the middle frame 317 is connected with a bottom frame 315, and the middle frame 317 plays a role in auxiliary support. The support bracket assembly 30 serves as a structural support for the overall shielding assembly and supports and secures the shield assembly 50. The supporting frame assembly 30 is made of 304 stainless steel materials, the height of the supporting frame assembly is set to be 1.8m as the optimal integral height, the height of the supporting frame assembly is higher than that of a normal person, the shielding range of the shielding device is guaranteed, and the requirement that the shielding device flexibly moves is met. Preferably, the width of the supporting frame assembly 30 is 900mm, and the height thereof is 1.8m, that is, the length of the cross bar 311 is 900mm, so as to ensure that the transportation can be performed in a non-standard elevator of a nuclear power plant.
As shown in fig. 1 and 4, the top end and the bottom end of the heavy metal plate assembly 51 both have matching grooves 511, the multiple heavy metal plate assemblies 51 are stacked and assembled through the matching grooves 511, the left and right sides of the heavy metal plate assembly 51 are respectively provided with the clamping members 513, the heavy metal plate assembly 51 is clamped on the support frame assembly 30 through the clamping members 513 on the left and right sides, specifically, the clamping members 513 are clamped on the clamping portions 33 on the support frame assembly 30, so that the shielding body assembly 50 and the support frame assembly 30 can be detachably connected. The appearance profile of the heavy metal plate assembly 51 is similar to a rectangle, the heavy metal plate assembly 51 is stacked and assembled through the matching tongue and groove 511, the heavy metal plate assembly is also of a detachable structure, the shielding body assemblies 50 fixed on two sides of the framework 31 are formed by sequentially stacking and installing 6-15 heavy metal plate assemblies 51 from bottom to top, each surface is 11 heavy metal plate assemblies 51 as shown in fig. 1, and 22 heavy metal plate assemblies 51 are counted on two surfaces. The heavy metal plate assembly 51 is formed by rolling one or more materials of tungsten powder, lead powder, iron powder and nickel powder into a plate and coating a stainless steel plate on the surface of the plate, the weight of the plate is 5-11 Kg, the thickness of the plate is 4-9 mm, and the thickness of the stainless steel plate is 1-2 mm, and the parameter design meets the requirement that the radiation dose of most shielding hot spot positions of a nuclear power plant is reduced by more than 80%. If a lead plate with the thickness of 6mm is adopted, the thickness of a stainless steel shell is 1.5mm, and each surface is 11 heavy metal plate assembly bodies 51, the shielding rate aiming at 58C and 137Cs reaches 82 percent, and the equivalent weight of 12mmPb can be achieved. And each heavy metal plate assembly body 51 weight is 5 ~ 11Kg, guarantees just can carry out heavy metal plate assembly body 51's dismantlement and installation alone. The seam between the adjacent heavy metal plate assembly bodies 51 forms a relative step peak staggering structure, the seam length can be 20mm, rays can not be emitted from the seam, each shielding body adopts the same specification, and convenience and replaceability when the shielding bodies are detached in installation are guaranteed. The upper portion of the heavy metal plate assembly body 51 positioned on the uppermost layer of the stacked stacking assembly is provided with the top stopper 53, the left end and the right end of the heavy metal plate assembly body 51 on the uppermost layer are respectively provided with the top stopper 53, the heavy metal plate assembly body 51 on the uppermost layer is fixed on the top end of the support frame assembly 30 through the top stopper 53, and the top stopper 53 can abut against the top end of the support frame assembly 30 to enable the fixation to be stronger. The heavy metal panel assembly 51 also has a handle 515 for easy handling.
As shown in fig. 1 and fig. 5 to 6, the two ends of the bottom plate 11 in the sliding direction of the vertical telescopic anti-falling support leg 17 are respectively provided with a connector 70, 70 'for the fixing pin 90 to be inserted, the plurality of mobile shielding devices 100 can be spliced by the connectors 70, 70', and the connecting surface is used as an axis to move, so that the plurality of mobile shielding devices 100 can be surrounded into shielding structures such as a circle and a semicircle to adapt to a complex environment at a radiant heat point of a nuclear power plant. The connectors 70, 70 'at both ends may be vertically staggered so that when the adjacent mobile shielding devices 100 are connected, the connector 70 of one mobile shielding device 100 and the connector 70' of the other mobile shielding device 100 can be overlapped together and have a through hole for the insertion of the fixing pin 90. Of course, the connectors 70, 70' at both ends may have a fitting structure as shown in fig. 6, in which one of the connectors has an engaging groove and the other connector has an engaging piece, and the engaging piece is engaged in the engaging groove and fixed by the fixing pin 90.
The shielding body assembly 50 is fixed on both sides of the framework 31 of the movable shielding device 100 in the herringbone ladder structure, so that the shielding device has higher protection equivalent; the shielding body assembly 50 is detachably fixed on the supporting frame assembly 30 and is formed by stacking and assembling a plurality of heavy metal plate assembly bodies 51, so that the shielding body assembly can be spliced at will, high protection equivalent and high movement flexibility of a temporary shielding device can be guaranteed during the overhaul of nuclear power plant equipment, and especially in the complex nuclear power plant environment with more stairs, ground barriers such as pipelines and the like, the detachable and randomly spliced shielding body assembly has more outstanding effect. During the nuclear power plant equipment maintenance, finishing the shielding device assembly at the point of waiting to be worked, directly pushing away to the radiant heat point department, after the maintainer accomplished the maintenance work, directly pushing away shielding device, it has all greatly reduced the collective dosage of radiation from taking on and tearing off stage and maintenance stage as a interim shielding device.
It should be noted that the above-mentioned embodiments illustrate rather than limit the scope of the invention, and that those skilled in the art will be able to modify the invention in its various equivalent forms after reading the present invention and to fall within the scope of the invention as defined in the appended claims.
Claims (10)
1. A movable shielding device is characterized by comprising a movable chassis assembly, a supporting frame assembly arranged on the movable chassis assembly and a shielding body assembly detachably fixed on the supporting frame assembly, wherein the supporting frame assembly is provided with a framework in a herringbone ladder structure, the shielding body assembly is fixed on two sides of the framework, the shielding body assembly is formed by stacking and assembling a plurality of heavy metal plate assembly bodies and is of a detachable structure, and seams between adjacent heavy metal plate assembly bodies form opposite ladder staggered joint structures.
2. The mobile shielding device of claim 1, wherein the framework has 4 vertical rods, the 4 vertical rods are divided into two groups on average and located on two sides of the framework, the top ends of the 4 vertical rods are connected to the cross rods, the bottom ends of the 4 vertical rods are connected to the bottom frame, and each vertical rod is provided with a plurality of clamping portions for fixing the heavy metal plate assembly.
3. The mobile shielding device of claim 2, wherein the framework further comprises criss-cross middle frames on two sides of the framework, the top ends of the middle frames are connected to the cross bars, and the bottom ends of the middle frames are connected to the bottom frames.
4. The movable shielding device of claim 1, wherein matching grooves and tongues are formed in the top end and the bottom end of each heavy metal plate assembly body, the heavy metal plate assembly bodies are stacked and assembled through the matching grooves and tongues, clamping members are arranged on the left side and the right side of each heavy metal plate assembly body, and the heavy metal plate assembly bodies are clamped on the support frame assembly through the clamping members on the left side and the right side.
5. The mobile shielding apparatus of claim 4, wherein a top stop is disposed at an upper portion of the top heavy metal plate assembly of the stacked assembly, and the top stop fixes the top heavy metal plate assembly to the top end of the supporting frame assembly.
6. The mobile shielding device of claim 4, wherein the heavy metal panel assembly further comprises a handle.
7. The mobile shielding apparatus of claim 1, wherein the movable chassis assembly comprises a base plate and a plurality of universal wheels disposed below the base plate.
8. The mobile shielding apparatus of claim 7, wherein the mobile chassis assembly further comprises a plurality of retractable anti-backup legs, the plurality of retractable anti-backup legs being staggered below the base plate.
9. The mobile shielding device of claim 8, wherein a sliding slot is formed below the bottom plate, the retractable anti-falling legs are sliding blocks which are connected with supporting members below and slide along the sliding slot, and adjacent retractable anti-falling legs slide in opposite directions.
10. The mobile shielding device of claim 9, wherein two ends of the bottom plate perpendicular to the sliding direction of the retractable anti-falling legs are respectively provided with a connecting piece for inserting a fixing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862584.6A CN110619968A (en) | 2019-09-11 | 2019-09-11 | Movable shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862584.6A CN110619968A (en) | 2019-09-11 | 2019-09-11 | Movable shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110619968A true CN110619968A (en) | 2019-12-27 |
Family
ID=68922822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910862584.6A Pending CN110619968A (en) | 2019-09-11 | 2019-09-11 | Movable shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110619968A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748040A (en) * | 2020-12-24 | 2021-05-04 | 郑州工程技术学院 | Slurry pipeline conveying density change detection meter and detection method |
| CN113689967A (en) * | 2021-07-20 | 2021-11-23 | 中国辐射防护研究院 | Movable rail type screen wind radiation shielding device |
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| JP2002350587A (en) * | 2001-05-29 | 2002-12-04 | Hitachi Plant Eng & Constr Co Ltd | Radiation shield body and shield wall |
| JP2013007640A (en) * | 2011-06-24 | 2013-01-10 | Hitachi-Ge Nuclear Energy Ltd | Assembly radioactive ray shield and radioactive ray shielding method by using the same |
| JP3181434U (en) * | 2012-11-26 | 2013-02-07 | 有限会社藤崎工業 | Fence-shaped radiation shielding sheet mounting jig and fence-shaped radiation shielding sheet mounting jig equipped with radiation shielding sheet |
| JP2015215298A (en) * | 2014-05-13 | 2015-12-03 | 日軽金アクト株式会社 | Shield structure |
| JP2016125838A (en) * | 2014-12-26 | 2016-07-11 | 日軽金アクト株式会社 | Shield wall |
| CN208637152U (en) * | 2018-07-26 | 2019-03-22 | 东莞材料基因高等理工研究院 | A kind of shielding construction of leakage path |
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2019
- 2019-09-11 CN CN201910862584.6A patent/CN110619968A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002350587A (en) * | 2001-05-29 | 2002-12-04 | Hitachi Plant Eng & Constr Co Ltd | Radiation shield body and shield wall |
| JP2013007640A (en) * | 2011-06-24 | 2013-01-10 | Hitachi-Ge Nuclear Energy Ltd | Assembly radioactive ray shield and radioactive ray shielding method by using the same |
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| JP2015215298A (en) * | 2014-05-13 | 2015-12-03 | 日軽金アクト株式会社 | Shield structure |
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| CN112748040A (en) * | 2020-12-24 | 2021-05-04 | 郑州工程技术学院 | Slurry pipeline conveying density change detection meter and detection method |
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| CN113689967A (en) * | 2021-07-20 | 2021-11-23 | 中国辐射防护研究院 | Movable rail type screen wind radiation shielding device |
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Application publication date: 20191227 |