대형 주물공정 용접작업장의 건강 위해인자 및 환기 개선
In this study we have examined the health risk factors and analyzing data of laborers working at the welding operation at large-sized casting process. In order to improve the working environment of workplace, an effective ventilation method was proposed after performing CFD (computational fluid dyna...
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Published in | Clean Technology, 20(2) Vol. 20; no. 2; pp. 171 - 178 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Korean |
Published |
한국청정기술학회
2014
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Subjects | |
Online Access | Get full text |
ISSN | 1598-9712 2288-0690 |
DOI | 10.7464/ksct.2014.20.2.171 |
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Abstract | In this study we have examined the health risk factors and analyzing data of laborers working at the welding operation at large-sized casting process. In order to improve the working environment of workplace, an effective ventilation method was proposed after performing CFD (computational fluid dynamics) modeling and measurement of pollutants. As a result of examining the health risk factors of workers, oxidized steel dust is the main pollution source in the company A, welding fume in the companies B and C, and welding fume and oxidized steel dust in the company D. The fume concentration in the workers' breathing zone was $0.05{\sim}4.37mg/m^3$, and the fume concentration in the indoor air at the welding process was $0.13{\sim}7.54mg/m^3$. From a result of CFD, a local exhaust with an exhaust duct adjacent to welding point was found to be most effective in case of the exhaust process. In case of air supply, we found that a desired location of air supply fan would be at the end of the opening. If a standardizing the ventilation system for tunnel-type semi-enclosed space at a large-sized casting process is introduced in welding work places in the future, it would be more effective to protect the health of welding workers working at the casting industry and shipbuilding industry and improve the work environment. 이 연구에서는 대형 주물공정 용접작업장 근로자들의 건강보호 및 작업환경 개선을 위해 위해인자 조사 및 분석작업을 수행하였다. 또한, 대상 작업장의 작업환경을 개선하기 위해 측정 및 전산유체해석 모델링을 수행한 후 효과적인 환기방법을 제안하였다. 대형 주물공정 용접작업장 근로자들의 건강 위해인자를 조사한 결과, A사는 산화철분진, B사와 C사는 용접흄, D사는 용접 흄과 산화철분진이 주오염원인 것으로 확인되었다. 작업자 호흡영역에서의 흄 농도는 $0.05{\sim}4.37mg/m^3$이었고, 용접작업장 공기 중 흄 농도는 $0.13{\sim}7.54mg/m^3$이었다. 또한, 용접작업 시 최적의 환기방법을 제안하기 위해 측정 및 전산유체해석 모사를 수행한 결과, 배기공정의 경우에는 배기 덕트를 용접점에 근접시켜 국소배기를 실시하는 것이 효과적인 것으로 나타났다. 급기공정의 경우에는 개구부 끝 부분에서 급기를 하며 급기용 팬은 작업 공간 외부에 설치하는 것이 효과적일 것으로 나타났다. 향후 대형 주물공정 용접작업장의 터널형 반밀폐 공간에 대한 환기방법을 표준화한다면 주물산업 및 조선업 등에 종사하는 용접 근로자들의 건강보호 및 작업환경 개선에 매우 효과적일 것으로 판단된다. |
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AbstractList | In this study we have examined the health risk factors and analyzing data of laborers working at the welding operation at large-sized casting process. In order to improve the working environment of workplace, an effective ventilation method was proposed after performing CFD (computational fluid dynamics) modeling and measurement of pollutants. As a result of examining the health risk factors of workers, oxidized steel dust is the main pollution source in the company A, welding fume in the companies B and C, and welding fume and oxidized steel dust in the company D. The fume concentration in the workers' breathing zone was $0.05{\sim}4.37mg/m^3$, and the fume concentration in the indoor air at the welding process was $0.13{\sim}7.54mg/m^3$. From a result of CFD, a local exhaust with an exhaust duct adjacent to welding point was found to be most effective in case of the exhaust process. In case of air supply, we found that a desired location of air supply fan would be at the end of the opening. If a standardizing the ventilation system for tunnel-type semi-enclosed space at a large-sized casting process is introduced in welding work places in the future, it would be more effective to protect the health of welding workers working at the casting industry and shipbuilding industry and improve the work environment. 이 연구에서는 대형 주물공정 용접작업장 근로자들의 건강보호 및 작업환경 개선을 위해 위해인자 조사 및 분석작업을 수행하였다. 또한, 대상 작업장의 작업환경을 개선하기 위해 측정 및 전산유체해석 모델링을 수행한 후 효과적인 환기방법을 제안하였다. 대형 주물공정 용접작업장 근로자들의 건강 위해인자를 조사한 결과, A사는 산화철분진, B사와 C사는 용접흄, D사는 용접 흄과 산화철분진이 주오염원인 것으로 확인되었다. 작업자 호흡영역에서의 흄 농도는 $0.05{\sim}4.37mg/m^3$이었고, 용접작업장 공기 중 흄 농도는 $0.13{\sim}7.54mg/m^3$이었다. 또한, 용접작업 시 최적의 환기방법을 제안하기 위해 측정 및 전산유체해석 모사를 수행한 결과, 배기공정의 경우에는 배기 덕트를 용접점에 근접시켜 국소배기를 실시하는 것이 효과적인 것으로 나타났다. 급기공정의 경우에는 개구부 끝 부분에서 급기를 하며 급기용 팬은 작업 공간 외부에 설치하는 것이 효과적일 것으로 나타났다. 향후 대형 주물공정 용접작업장의 터널형 반밀폐 공간에 대한 환기방법을 표준화한다면 주물산업 및 조선업 등에 종사하는 용접 근로자들의 건강보호 및 작업환경 개선에 매우 효과적일 것으로 판단된다. 이 연구에서는 대형 주물공정 용접작업장 근로자들의 건강보호 및 작업환경 개선을 위해 위해인자 조사 및 분석작업을 수행하였다. 또한, 대상 작업장의 작업환경을 개선하기 위해 측정 및 전산유체해석 모델링을 수행한 후 효과적인 환기방법을제안하였다. 대형 주물공정 용접작업장 근로자들의 건강 위해인자를 조사한 결과, A사는 산화철분진, B사와 C사는 용접흄, D사는 용접 흄과 산화철분진이 주오염원인 것으로 확인되었다. 작업자 호흡영역에서의 흄 농도는 0.05~4.37 mg/m3이었고, 용접작업장 공기 중 흄 농도는 0.13~7.54 mg/m3이었다. 또한, 용접작업 시 최적의 환기방법을 제안하기 위해 측정 및 전산유체해석 모사를 수행한 결과, 배기공정의 경우에는 배기 덕트를 용접점에 근접시켜 국소배기를 실시하는 것이 효과적인것으로 나타났다. 급기공정의 경우에는 개구부 끝 부분에서 급기를 하며 급기용 팬은 작업 공간 외부에 설치하는 것이 효과적일 것으로 나타났다. 향후 대형 주물공정 용접작업장의 터널형 반밀폐 공간에 대한 환기방법을 표준화한다면 주물산업및 조선업 등에 종사하는 용접 근로자들의 건강보호 및 작업환경 개선에 매우 효과적일 것으로 판단된다. In this study we have examined the health risk factors and analyzing data of laborers working at the welding operationat large-sized casting process. In order to improve the working environment of workplace, an effective ventilation method wasproposed after performing CFD (computational fluid dynamics) modeling and measurement of pollutants. As a result ofexamining the health risk factors of workers, oxidized steel dust is the main pollution source in the company A, welding fume inthe companies B and C, and welding fume and oxidized steel dust in the company D. The fume concentration in the workers’breathing zone was 0.051~4.37 mg/m3, and the fume concentration in the indoor air at the welding process was 0.13~7.54 mg/m3. From a result of CFD, a local exhaust with an exhaust duct adjacent to welding point was found to be most effective in case of theexhaust process. In case of air supply, we found that a desired location of air supply fan would be at the end of the opening. If astandardizing the ventilation system for tunnel-type semi-enclosed space at a large-sized casting process is introduced in weldingwork places in the future, it would be more effective to protect the health of welding workers working at the casting industry andshipbuilding industry and improve the work environment. KCI Citation Count: 0 |
Author | 이정희(Jung Hee Lee) 정유진(Yu Jin Jung) 손병현(Byung Hyun Shon) 정종현(Jong Hyeon Jung) 이상만(Sang man Lee) 임현술(Hyun Sul Lim) |
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Keywords | 건강 위해인자 용접 주물공정 환기 Health risk factor Welding Computational fluid dynamics 전산유체해석 Ventilation Casting process |
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Snippet | In this study we have examined the health risk factors and analyzing data of laborers working at the welding operation at large-sized casting process. In order... 이 연구에서는 대형 주물공정 용접작업장 근로자들의 건강보호 및 작업환경 개선을 위해 위해인자 조사 및 분석작업을 수행하였다. 또한, 대상 작업장의 작업환경을 개선하기 위해 측정 및 전산유체해석 모델링을 수행한 후 효과적인 환기방법을제안하였다. 대형 주물공정 용접작업장 근로자들의 건강... |
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SubjectTerms | 화학공학 |
Title | 대형 주물공정 용접작업장의 건강 위해인자 및 환기 개선 |
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