| 英文摘要 |
Occupational health control methods can start from three aspects: emission sources, exposure routes and receivers. Ventilation facilities are one of the most commonly used control methods in occupational health. Good ventilation facilities can remove harmful emissions from the working environment. objects, improve the comfort of the working environment, and prevent fire and explosions. Domestic laws and regulations on ventilation facilities are divided into three parts: installation, performance requirements, and maintenance and management. The installation part only mentions that ventilation facilities should be installed when manufacturing, handling, and using specific hazardous substances; the performance requirements part stipulates that they should operate effectively during operations and It is required that the concentration of harmful substances shall not exceed the allowable concentration; the maintenance and management part requires regular automatic inspections. However, there are no relevant domestic standards for testing methods and implementation methods for the effectiveness of ventilation systems. To this end, we collected and compiled domestic and foreign regulations, standards and guidelines for ventilation systems, and further discussed relevant standards and measurement technologies in the performance testing stage of ventilation systems, as well as qualitative and quantitative measurement indicators for performance evaluation, such as smoke flow test, Wind speed, pressure and tracer gas measurement, etc., and draw up a ventilation system practice manual accordingly. When visiting public institutions, in addition to understanding the performance, effect and operation and maintenance of the ventilation system, the proposed practice manual was also used. The results showed that most institutions had unimplemented or unimplemented matters in the implementation of each stage of the ventilation system, such as There were no qualified professionals to carry out the design and no relevant design data was saved, making it difficult to carry out subsequent commissioning, regular testing and maintenance work. The Working Environment Ventilation System Management Technical Manual is compiled based on domestic and foreign regulations, standards and trial results of public institutions. It is intended to provide reference for competent authorities and public institutions, help improve public institutions’understanding and implementation capabilities of ventilation systems, and ensure ventilation The system can operate effectively to ensure the safety and health of workers. |