氧化生产安全技术（Oxidation production safety technology）.docVIP

氧化生产安全技术（Oxidation production safety technology） Oxidation production safety technology I. radio 1. the purge displacement of the hydrogen system can be performed by either the (B) replacement method or the water injection exhaust method. A, carbon monoxide, B, nitrogen, C, oxygen 2. when the hydrogen system is switched out, the oxygen or hydrogen content in the system must be qualified continuously (C). A, one B, two C, three 3., the gas in the hydrogen bottle is strictly prohibited, and the excess pressure (A) should be retained. A, 0.05MPa, B, 0.08MPa, C, 0.1MPa 4. the hydrogen produced in the chemical reaction can be exported to the roof of the workshop by the exhaust pipe, and higher than the ridge (C), and discharged through the fire arrester. A, 1 meters, B, 1.5 meters, C, 2 meters 5. strong corrosion liquid discharge valve should be set (C). A, single valve B, ball valve C, double valve 6. operators, maintenance, adjustment, inspection work position, from falling datum (C), and the difference exceeds the falling risk places should be configured for standing platform and fall protection railing, a safety cover plate, door plate. A, 4 meters, B, 3 meters, C, 2 meters 7. hazardous substances (class I), advanced hazards (class II), toxic materials, and liquid level of high temperature and strong corrosive materials shall not be used (A) A, glass tube level gauge B, plastic tube level gauge C, radar liquid level gauge 8., in flammable and explosive systems, blind board, but also to maintain the system (B), to prevent air inhalation. A, positive pressure B, micro positive pressure C, negative pressure 9. the risk of transporting solid bulk materials and powders comes mainly from equipment and (C) A, process B, environmental C, conveying material characteristics 10. the device should be blown off at the end (C) to prevent backflow in the piping system, A, first stop gas, then close the feed valve B, and stop the gas and shut down the material valve C, first close t