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目的探讨某电厂化学水处理车间通风排毒系统防护效果,为同类企业职业病防护设施设计审查及通风排毒设施设计、施工提供科学依据。方法采用现场职业卫生调查法、职业病危害因素检测等方法。通过卫生工程检测,分析通风排毒系统控制效果。结果整改前,化学有害因素检测合格率为100%;二氧化氯加药间及炉内加药间实测通风换气次数分别为3.4和2.6次/h,不符合标准要求。酸碱计量间的通风换气次数为12.1次/h,符合标准要求。整改后,二氧化氯加药间及炉内加药间的通风换气次数分别为12.0和15.3次/h,符合标准要求。结论整改后各加药间的通风排毒设施防护有效。通过对通风排毒系统防护效果的检测,能发现职业病防护设施设计及施工中存在的问题。应定期检测通风排毒设施防护效果,确保通风排毒设施正常运转。
Objective To explore the protective effect of ventilation and detoxification system of chemical water treatment plant in a power plant and provide scientific basis for design review and ventilation and detoxification facility design and construction of occupational disease protection facilities of similar enterprises. Methods The method of on-the-spot occupational health investigation and detection of occupational hazards were used. Through health engineering testing, analysis of ventilation detoxification system control effect. Results Before the rectification, the passing rate of chemical harmful factors was 100%. The actual number of ventilation between chlorine dioxide dosing room and furnace dosing was 3.4 and 2.6 times / h respectively, which did not meet the standard requirements. Acid-base metering ventilation between the number of 12.1 times / h, in line with standard requirements. After the rectification, the number of ventilation between chlorine dioxide dosing room and dosing furnace was 12.0 and 15.3 times / h respectively, which met the standard requirements. Conclusions After the rectification, ventilation and detoxification facilities between dosing stations are effective and effective. Ventilation detoxification system through the detection of protective effects, we can find occupational disease protection facilities design and construction problems. Ventilation and detoxification facilities should be regularly tested protective effect to ensure the normal operation of ventilation detox facilities.