KR200479119Y1 - Radiation shielding pad - Google Patents

Radiation shielding pad Download PDF

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Publication number
KR200479119Y1
KR200479119Y1 KR2020140007385U KR20140007385U KR200479119Y1 KR 200479119 Y1 KR200479119 Y1 KR 200479119Y1 KR 2020140007385 U KR2020140007385 U KR 2020140007385U KR 20140007385 U KR20140007385 U KR 20140007385U KR 200479119 Y1 KR200479119 Y1 KR 200479119Y1
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KR
South Korea
Prior art keywords
lead
shielding
radiation
present
pad
Prior art date
Application number
KR2020140007385U
Other languages
Korean (ko)
Inventor
박진규
김동열
문을석
주승채
허만주
Original Assignee
대우조선해양 주식회사
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Priority to KR2020140007385U priority Critical patent/KR200479119Y1/en
Application granted granted Critical
Publication of KR200479119Y1 publication Critical patent/KR200479119Y1/en

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    • 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
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
    • 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

Abstract

The present invention relates to a radiation shielding body 100 installed in a piping and includes a lead ball padding 110 and a shielding shell 120. The shielding shell 120 covers the lead ball padding 110, A Velcro strap 130 for wrapping around and fixing; A Velcro band fixing D ring 140 for fixing the velcro band 130; A non-slip pad part 150 for preventing the lead bead pad 110 from slipping; And a shielding pouch 160 for use with the lead ball pads 110 according to a radiation shielding requirement level. According to the present invention, it is possible to easily install the pipe around the pipe by adjusting the size to fit the piping size, and it is possible to use repeatedly, as well as excellent handling and efficient radiation shielding for the RT inspection part. In addition, since the radiation scatters and disappears by repeatedly moving between lead beads, a better shielding effect can be obtained.

Description

{Radiation shielding pad}

The present invention relates to a radiation shielding body, and more particularly, to a radiation shielding body capable of efficiently shielding the radiation of an RT inspection part.

Radiation restrictions are being strengthened in relation to RT (Radiographic Testing) inspection in Nuclear Safety Act. The RT worker standard is less than 10 μ㏜ / hr (microsievert), the general worker standard is less than 1 μ㏜ / hr, and the general worker access control is changed within a radius of 30 m and a radius of 100 m.

For reference, the RT test is a method of detecting defects by recording the difference in intensity on the film due to the change in the intensity of the transmitted radiation, that is, the difference between the penetration dose of the dry part and the defect part, when the radiation is irradiated on the specimen And a method for detecting defects such as welded parts such as pipes and castings.

In the past, in the RT inspection of field pipelines, the inspection section was not shielded, but the general worker limit zone was set based on the allowable radiation exposure limit, the restricted zone was marked and the access was restricted. . Or work in an RT room made of concrete, or work to build a shielding device thicker with lead.

However, in order to improve the productivity, it is necessary to perform a simultaneous inspection at a narrow radius and to shrink the general worker restricted area as well as a shielding technique that can be widely applied to piping of various sizes in the field.

For reference, lead is an effective and economical shielding material that can shield radiation, but for example to reduce the radiation intensity to about 1/8 of the RT measurement of a 100A pipe, the thickness of the lead shield is about 18 mm and the size is 400 mm * If it is 270mm, the weight is about 22kg, so there is a lot of difficulty in handling such as installing in various sizes of piping.

Korean Patent Laid-Open No. 2009-0110398 (October 22, 2009; radiation shielding material) Korean Laid-Open Patent No. 2013-0019142 (Feb. 26, 201, radiation shielding sheet)

In order to solve the above problems, the present invention provides a radiation shield which can be easily applied to piping of various sizes, can be repeatedly used, has excellent handling properties, and can efficiently shield radiation of the RT inspection unit It has its purpose.

In order to achieve the above object, a radiological shield according to an embodiment of the present invention is a radiological shield installed in a pipeline, wherein a lead bead is filled in a plurality of spaces defined in the inside so that lead beads can be uniformly arranged A lead bead pad; The lead bead pad is characterized in that the lead bead pad is divided into a triangular or honeycomb structure in which the lead bead pad is received so that the lead bead pad can be wound and fixed around the pipe.

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Here, the shielding shell may include a velcro band for winding and fixing the lead bead pad around the pipe.

In addition, a velcro band fixing D ring for fixing the velcro straps may be provided.

In addition, the shield shell may include a non-slip pad portion for preventing the lead bead pad from slipping.

In addition, the shielding enclosure may include a shielding bag for double-use of the lead bead pad.

delete

According to the present invention, it is possible to easily install the pipe around the pipe by adjusting the size to fit the piping size, and it is possible to use repeatedly, as well as excellent handling and efficient radiation shielding for the RT inspection part. In addition, since the radiation scatters and disappears by repeatedly moving between lead beads, a better shielding effect can be obtained.

1 is a conceptual view of a radiation shield according to a first embodiment of the present invention;
Fig. 2 is a detailed view of the lead bead pad of the radiation shield according to the first embodiment of the present invention; Fig.
3 is an external view of a lead bead pad of a radiation shield according to a first embodiment of the present invention;
Fig. 4 is a state of use of the radiation shield according to the first embodiment of the present invention; Fig.
5 is a view for explaining a shielding effect by a shield.
6 is a conceptual view of a radiation shield according to a second embodiment of the present invention;
7 is a conceptual view of a radiation shield according to a third embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a conceptual view of a radiation shield according to a first embodiment of the present invention, FIG. 2 is a detailed view of a lead bead pad of a radiation shield according to a first embodiment of the present invention, and FIG. 3 is a cross- Fig. 4 is a view showing the state of use of the radiation shield according to the first embodiment of the present invention, and Fig. 5 is a view for explaining a shielding effect by the shielding body.

The radiation shield according to the present invention is designed to be easily applicable to piping of various sizes, can be repeatedly used, has excellent handling properties, and is configured to enable effective radiation shielding to the RT inspection unit.

As shown in FIG. 1, the radiation shielding body 100 according to the first embodiment of the present invention is provided on a pipe for shielding radiation, and includes a lead bead pad 110 and a shielding shell 120 .

As shown in FIG. 2, the lead bead pad 110 is filled with lead beads 112 in a plurality of voids 111, which are divided into triangular or honeycomb structures, as shown in FIG. 2 . If the lead bead pad 110 is formed in a shape divided into a triangular shape or a honeycomb structure, the lead bead 112 is not aligned to one side but is uniformly arranged, and can easily be wound on a pipe to shield radiation .

For reference, if the triangular or honeycomb size is appropriately adjusted, it can be manufactured to meet the required thickness of the shielding body, and it is possible to manufacture each pipe size.

The shield shell 120 can be fixed by winding the lead bead pad 110 around the pipe while the lead bead pad 110 is received.

Specifically, the shielding shell 120 includes a velcro strip 130 (aka a squeak) for winding and fixing the lead bead pad 110 around the pipe. Further, a velcro band fixing D ring 140 for fixing the velcro band 130 may be provided.

The shield body 120 may further include a non-slip pad unit 150 for preventing the lead bead pad 110 from slipping. Therefore, when the lead bead pad 110 is wound around the pipe, it is possible to prevent the lead bead pad 110 from slipping.

The shielding shell 120 may further include a shielding pouch 160 for mounting the lead ball pads 110 in a double manner according to a radiation shielding requirement level, if necessary.

On the other hand, as shown in Fig. 5, the radiation irradiated to the pipe P is theoretically eliminated after scattering while repeatedly moving between the shield S and the pipe P.

6 is a conceptual diagram of a radiation shield according to a second embodiment of the present invention.

6, the radiation shield 200 according to the second embodiment of the present invention is provided in a piping for shielding radiation. The radiation shield 200 includes a space portion 211 as a pad having a space portion 211, And a lead bead pad 210 which is vacuum-pressed while the lead bead 212 is filled. At this time, the pad cover can be made of thick vinyl.

The radiation shield 200 according to the second embodiment of the present invention is configured such that the lead bead pad 210 is wound around the pipe P in the same manner as the radiation shield 100 according to the first embodiment of the present invention A shielding shell can be provided so as to be fixed to the shielding body.

The shield shell according to the second embodiment of the present invention may be provided with a velcro band for winding and fixing the lead bead pad around the pipe as in the case of the shield according to the first embodiment of the present invention.

The shield shell according to the second embodiment of the present invention may be provided with a velcro band-fixed D-ring for fixing the velcro straps similarly to the shield shell according to the first embodiment of the present invention.

The shielding shell according to the second embodiment of the present invention may include a non-slip pad portion for preventing slipping of the lead bead pad, like the shielding shell according to the first embodiment of the present invention.

The shielding shell according to the second embodiment of the present invention can be provided with a shielding bag for double use of the lead bead pad, like the shielding shell according to the first embodiment of the present invention.

When the pipeline is wound using the radiation shield 200, the lead beads 212 are not aligned to one side but are uniformly arranged, and the radiation can be shielded by being easily wound on the pipeline.

7 is a conceptual view of a radiation shield according to a third embodiment of the present invention.

7, the radiation shielding body 300 according to the third embodiment of the present invention is provided on a pipe for shielding radiation. The radiation shielding body 300 includes a space 311 as a pad having a space 311, And a lead bead pad 310 filled with lead beads 312.

The upper and lower lead bead fixing frames 320 and 330 are disposed at regular intervals on the upper and lower sides of the lead bead pad 310 so that the lead beads can be pressed and fixed.

A lead frame holding pin 340 fastened to the upper and lower lead fixing frames 320 and 330 for pressing and fixing the lead beads 311 to the upper and lower lead fixing frames 320 and 330, (350).

The radiation shield 200 according to the third embodiment of the present invention is configured such that the lead bead pad 310 is wound around the pipe P in the same manner as the radiation shield 100 according to the first embodiment of the present invention A shielding shell can be provided so as to be fixed to the shielding body.

The shield shell according to the third embodiment of the present invention may be provided with a velcro strap for winding and fixing the lead bead pad around the pipe in the same manner as the shield shell according to the first embodiment of the present invention.

In addition, the shielding shell according to the third embodiment of the present invention may be provided with a Velcro band-fixed D-ring for fixing the velcro straps, like the shielding shell according to the first embodiment of the present invention.

The shielding shell according to the third embodiment of the present invention may be provided with a non-slip pad portion for preventing slipping of the lead bead pad, like the shielding shell according to the first embodiment of the present invention.

The shield shell according to the third embodiment of the present invention may be provided with a shielding bag for double use of the lead bead pads in the same manner as the shield shell according to the first embodiment of the present invention.

When the piping is wound using the radiation shielding body 300, the lead beads 311 are not aligned to one side but are uniformly arranged, and the radiation can be shielded by being easily wound on the piping.

As described above, according to the present invention, it is possible to adjust the size of the pipe to suit the size of the pipe so that the pipe can be easily wrapped around the pipe. In addition, the pipe can be used repeatedly and has excellent handling properties. .

In addition, since the radiation is scattered and disappears by repeatedly moving between the lead beads, a better shielding effect can be obtained.

While the radiation shield according to the present invention has been described in terms of a limited number of embodiments, the scope of the present invention is not limited to the specific embodiment, and various changes and modifications may be made without departing from the scope of the present invention. And can be carried out by alternatives, modifications and alterations.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are within the scope of the same should be interpreted as being included in the scope of the present invention.

100, 200, 300: radiation shielding member 110, 210, 310: lead ball pad
111, 211, 311: Space part 112, 212, 312:
120: Shielding jacket 130: Velcro strap
140: Velcro fastening D-ring 150: Non slip pad part
160: Shielding pouch 320,330: Frame for fixing lead beads
340: Lead frame holding pin 350: Lead frame holder

Claims (7)

A radiation shield for a pipeline,
A lead bead pad in which a lead bead is filled in a plurality of spaces defined in the inside so that the lead beads can be evenly arranged;
And a shield bead shell accommodating the lead bead pads so that the lead bead pads can be wound and fixed around the pipe,
Wherein the lead bead pad is partitioned into a triangular or honeycomb structure. delete The method according to claim 1,
Wherein the shield shell comprises a velcro band for winding and fixing the lead bead pad around the pipe. The method of claim 3,
And a Velcro band fixing D ring for fixing the velcro straps. The method according to claim 1,
Wherein the shield shell has a non-slip pad portion for preventing slip of the lead bead pad. The method according to claim 1,
Wherein the shielding shell comprises a shielding bag for use with the lead bead pad mounted in a double manner. delete
KR2020140007385U 2014-10-13 2014-10-13 Radiation shielding pad KR200479119Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR2020140007385U KR200479119Y1 (en) 2014-10-13 2014-10-13 Radiation shielding pad

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KR200479119Y1 true KR200479119Y1 (en) 2015-12-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102585849B1 (en) 2023-05-20 2023-10-10 주식회사 올네이션 Radiation shield of the welded pipe for radiography and a manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0656797U (en) * 1993-01-08 1994-08-05 株式会社日本環境調査研究所 Lead mat for pipe shielding
JPH07229999A (en) * 1994-02-21 1995-08-29 Nippon Kankyo Chiyousa Kenkyusho:Kk Zinc plate laminated mat for shielding
KR20070001406A (en) * 2005-06-29 2007-01-04 강석종 Radiation shielding wall
KR20090078159A (en) * 2008-01-14 2009-07-17 대륙화학공업 주식회사 Lagging rubber pad for non-slip of pulley drum for conveyor
KR20090110398A (en) 2008-04-18 2009-10-22 한국수력원자력 주식회사 Radiation shielding body
KR20130019142A (en) 2011-08-16 2013-02-26 (주)에나인더스트리 Radiation shield sheet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0656797U (en) * 1993-01-08 1994-08-05 株式会社日本環境調査研究所 Lead mat for pipe shielding
JPH07229999A (en) * 1994-02-21 1995-08-29 Nippon Kankyo Chiyousa Kenkyusho:Kk Zinc plate laminated mat for shielding
KR20070001406A (en) * 2005-06-29 2007-01-04 강석종 Radiation shielding wall
KR20090078159A (en) * 2008-01-14 2009-07-17 대륙화학공업 주식회사 Lagging rubber pad for non-slip of pulley drum for conveyor
KR20090110398A (en) 2008-04-18 2009-10-22 한국수력원자력 주식회사 Radiation shielding body
KR20130019142A (en) 2011-08-16 2013-02-26 (주)에나인더스트리 Radiation shield sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102585849B1 (en) 2023-05-20 2023-10-10 주식회사 올네이션 Radiation shield of the welded pipe for radiography and a manufacturing method thereof
KR102629320B1 (en) 2023-05-20 2024-01-24 주식회사 올네이션 Radiation shield of the welded pipe for radiography and a manufacturing method thereof
KR102629316B1 (en) 2023-05-20 2024-01-24 주식회사 올네이션 Radiation shield of the welded pipe for radiography and a manufacturing method thereof

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