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Pipeline nuclear radiation shielding bandage

A pipe and bandage technology, applied in the field of nuclear radiation protection, can solve the problems of poor stability, inadaptability to radiation protection of special-shaped components, easy fall-off of lead powder, etc., and achieve the effect of good flexibility and excellent nuclear radiation protection performance

Inactive Publication Date: 2015-02-18
扬州锦沃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead screens, lead plates, lead glass, etc. can also be applied to mobile protective bodies or places that need to provide temporary protection, but the risk of radiation leakage is high, the construction is difficult, the utilization rate is low, and the adaptability is poor, and it is not suitable for special-shaped components such as pipeline valves. radiation protection
Flexible protective screens and protective clothing based on lead powder rubber have the advantages of strong removable and detachable properties and good airtightness, but low protection efficiency (small linear attenuation coefficient) and poor stability (matrix is ​​easy to age, lead powder Easy to fall off), low reuse rate (after multiple folds, the creases are damaged), high cost of use (to ensure the effectiveness of protection, it needs to be replaced frequently)

Method used

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  • Pipeline nuclear radiation shielding bandage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A lead alloy fiber with a diameter of 0.4mm was selected as the inner core fiber, and 16 lead alloy fibers with a diameter of 150D The carbon fiber is used as the core-spun fiber, and the lead alloy fiber / carbon fiber composite fiber filament with a diameter of 0.5 mm is obtained by automatic core-spun braiding. On an automatic warp and weft or three-dimensional weaving machine, the lead alloy fiber / carbon fiber composite filaments are cross-braided in warp and weft to form a radiation protection inner core layer 1 with a thickness of 1.5mm. A meshed carbon fiber cloth with a thickness of 0.3 mm is put into two layers of thermoplastic polyurethane, and hot-pressed to form a coating layer 2 with a thickness of 0.5 mm. The above-mentioned radiation protection inner core layer 1 with a thickness of 1.5mm is sandwiched between two cladding layers 2 with a thickness of 0.5mm for secondary packaging to make a pipe nuclear radiation shielding bandage with a thickness of 2.5mm....

Embodiment 2

[0026] One lead alloy fiber with a diameter of 0.3 mm and one tantalum alloy fiber with a diameter of 0.1 mm were selected for the inner core fiber; 16 core fibers with a diameter of 150D polyamide fiber, the Automatic corespun braiding A lead alloy fiber / tantalum alloy fiber / polyamide fiber composite fiber filament with a diameter of 0.5 mm was obtained. On an automatic warp and weft or three-dimensional weaving machine, the lead alloy fiber / tantalum alloy fiber / polyamide fiber composite fiber is cross-braided in warp and weft to form a radiation protection inner core layer 1 with a thickness of 1.5 mm. A mesh-shaped nylon cloth with a thickness of 0.3 mm is put into two layers of thermoplastic polyvinyl chloride, and heat-pressed to form a coating layer 2 with a thickness of 0.6 mm. The above-mentioned radiation protection inner core layer 1 with a thickness of 1.5mm is sandwiched between two cladding layers 2 with a thickness of 0.6mm for secondary packaging to make a pip...

Embodiment 3

[0028] One tungsten alloy fiber with a diameter of 0.4mm is selected as the inner core fiber, and 16 tungsten alloy fibers with a diameter of 150D Tungsten alloy fiber / high-density polyethylene fiber composite fiber filament with a diameter of 0.5mm is obtained by automatic core-spun weaving. On an automatic warp and weft or three-dimensional weaving machine, the tungsten alloy fiber / high-density polyethylene fiber composite fiber filaments are cross-braided in warp and weft to form a radiation protection inner core layer 1 with a thickness of 1.5 mm. A mesh carbon fiber cloth with a thickness of 0.3 mm is put into two layers of thermoplastic polyurethane, and hot-pressed to form a coating layer 2 with a thickness of 0.6 mm. A radiation protection inner core layer 1 with a thickness of 1.5mm is sandwiched between two cladding layers 2 with a thickness of 0.6mm for secondary packaging to make a pipe nuclear radiation shielding bandage with a thickness of 2.7mm. The radiation p...

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Abstract

The invention relates to a pipeline nuclear radiation shielding bandage which comprises a radiation protection inner core layer and wrapping layers, wherein the radiation protection inner core layer is packaged between two wrapping layers; the radiation protection inner core layer is woven from radiation protection composite fibers in a warp and weft or three-dimensional manner; the radiation protection composite fibers are formed by performing automatic wrapping and weaving on metal inner core fibers and wrapped fibers; the metal inner core fibers at least comprise one lead alloy fiber, tungsten alloy fiber or tantalum alloy fiber; the wrapped fibers are carbon fibers, high-density polyethylene fibers, polytetrafluoroethylene fibers, polyphenylene sulfide fibers, polyarmide fibers or polyester fibers; the wrapping layers are made of thermal plastic resin and net-shaped reinforced fiber cloth inside the thermal plastic resin in a thermal grinding composite manner. The pipeline nuclear radiation shielding bandage is excellent in nuclear radiation protection property, has multiple functions of flame retardancy, oil prevention, puncture prevention, simplicity in contamination removal, and the like, is applicable to irregular components such as pipelines and valves, and can be widely applied to fields such as nuclear stations, hospitals and military nuclear facilities.

Description

[0001] technical field [0002] The invention relates to the technical field of nuclear radiation protection, in particular to a pipeline nuclear radiation shielding bandage. [0003] Background technique [0004] Nuclear science and technology have been widely used in many fields such as national defense, energy, industry, and medical treatment, bringing huge economic and social benefits, and increasing people's chances of being exposed to and threatened by various radiations. Nuclear and radiation safety issues has become increasingly prominent and has received much attention. Radiation protection materials and equipment are the key to ensuring the safety of workers in radiation sites and the public, and are also an effective means to resolve the crisis of nuclear accidents. They are an important guarantee for military and civilian radiation safety protection and are in urgent need. [0005] Because lead has good nuclear radiation protection effect and low cost, it has b...

Claims

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Application Information

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IPC IPC(8): G21F1/12D03D15/00D04C1/02D02G3/36D02G3/04D02G3/12D03D15/25D03D15/275D03D15/283D03D15/47D03D15/50D03D15/513D03D15/533
CPCG21F1/125B32B15/02B32B15/14B32B2307/3065B32B2260/021B32B2260/046B32B2571/00
Inventor 常树全于丰源马颜雪杨东辉戴耀东李进常岭于徐生
Owner 扬州锦沃科技有限公司