氧─乙炔铜管退火工安全操作规程
1.氧气瓶
(1)氧气瓶应直立放置,并用卡子等加以固定。
平放时,必须使气门比底座稍高;
(2)禁止将氧气瓶放在靠近火源、热源的地方。
防止碰撞和在阳光下曝晒;
(3)氧气瓶不应与乙炔瓶放在一起,应该相距5~10mm以上的距离;
(4)氧气瓶不允许接触油脂、不准用有油渍的手套去开氧气瓶;
(5)氧气瓶在压力调节器、压力表不正常,无铅封或安全阀不可靠时禁止使用;
(6)开启氧气阀门时,要用专用工具,动作要缓慢,不能面对瓶嘴,瓶内氧气所示压力不得少于0.05MPa。
2.乙炔气瓶
(1)乙炔气瓶与火焰淬火工作地点之间的距离应不少于
应避开电线的闸刀开关及送风机的抽风地点等;
(2)作业环境气温不得超过
(3)禁止将明火、炽热的物件接近乙炔气瓶;
(4)乙炔气瓶冰冻时,可用不超过
(5)每个工作点的乙炔气瓶必须配有回火防止器,并应经常检查,清洗;
(6)乙炔压力不得超过0.15MPa。
3.输气软管和喷火嘴
(1)禁止将软管设在明火,热导管,电线或其它热源附近。
(2)软管不允许有漏气和堵塞现象,使用新的软管时应用压缩空气吹净管内石粉或灰屑。
(3)如果乙炔软管发生着火,应将软管着火处上方弯折,氧气软管着火不准用弯折方法,应关闭上一级氧气阀门。
(4)喷火咀应用紫铜制造,不得用黄铜,喷咀不准放在地上。
(5)喷火咀温度过高时,应暂停操作或关闭乙炔气门,但不得关闭氧气,然后将喷火咀置于冷水中冷却。
(6)点燃时,应先小开氧气门,再开乙炔气点燃,然后调节,熄灭时应先关乙炔气门。
为避免喷火孔爆炸,也可先将氧气阀调小(不能一下子关死),再关乙炔气阀,最后将氧气瓶关死。
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