推荐回答(4个)
锅炉点火就是新安装的锅炉或者锅炉大小修之后重新启动时点火,因为直接用煤直接点火很难(等离子点火的除外)一般开始点火是都投入一定的轻油进行助燃,当煤粉燃烧稳定后再将油枪熄灭。
1 本规程所指的点火器是带有自动发火源以先引燃由喷枪喷出的气体(或液体)燃料,再点燃助燃油枪或主燃烧器煤粉的成套装置,它应能就地手动和按程序自动操作。
2 点火器的热功率,按燃煤的特性和主燃烧器的出力大小确定。单纯起点火作用的点火器(主燃烧器着火后即停用),其热功率一般应为主燃烧器功率的5%。如果要点火器在主燃料着火后仍继续运行以维持着火稳定,其热功率一般应在主燃烧器额定功率的10%以上。点火器应带有自己的火焰检测器,以观测其是否着火。
3 点火器及与之配套的助燃油枪配置的数量及安装位置,应根据锅炉的容量,燃料的性能,主燃烧器的数量、型式等因素,由锅炉制造厂确定。
4 400t/h 及以上容量的锅炉,点火器及其助燃油枪系统应能实现按程序自动操作。
5 锅炉除点火器外,为启动升负荷、低负荷时稳燃以及燃烧设备事故处理的需要,还应装设一定数量的助燃油枪。助燃油枪的数量及安装位置由锅炉制造厂确定。
6 点火器和助燃油枪的布置应考虑便于维修。油管路上的安全截止阀应装在靠近点火器和助燃油枪的地方,以使阀门后管道中可能积存的油量减小到最低限度。油管道应有防油凝固的措施,雾化蒸汽管道应能就地疏水。
7 点火器发火导杆、油(气)枪,以及助燃油枪停用时,应能退出到炉墙内,以免被高温火焰烧坏
锅炉点火就是新安装的锅炉或者锅炉大小修之后重新启动时点火,因为直接用煤直接点火很难(等离子点火的除外)一般开始点火是都投入一定的轻油进行助燃,当煤粉燃烧稳定后再将油枪熄灭。
锅炉点火就是新安装的锅炉或者锅炉大小修之后重新启动时点火,因为直接用煤直接点火很难(等离子点火的除外)一般开始点火是都投入一定的轻油进行助燃,当煤粉燃烧稳定后再将油枪熄灭
经济指标统计时见到的名词吧?锅炉在点火、稳燃时需要烧油,耗用的燃油量就是这个东东。一般大型电站锅炉备有4~8支烧轻油(也就是柴油)的油枪,每支油枪出力是1~2吨/小时。现在一般都设有等离子点火装置,不用烧油,但在特殊情况下,如等离子所处的磨煤机故障不能投等离子点火或稳燃、煤质差等离子点不着等情况下还得烧油。做为运行人员还是趋向于用油来点火或稳燃的,因为烧油比投等离子稳定和易操作。但油贵,所以在经济指标考核时对点火和助燃油量有要求。
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