一、再沸器上盖氯化氢工段脱吸用石墨再沸器,操作压力0.5公斤/厘米~2,用3公斤/厘米~2蒸汽间接加热,上盖是由两块石墨粘接而成的。直径为φ660毫米,厚度150毫米。使用中经常发现石墨上盖粘接处漏气,曾采用各种办法进行修补,均未达到预期效果。后改用钢板内衬两层瓷砖的盖子,使用周期仅1～2月。由于上盖外形尺寸较大,一般均采用拼 First, reboiler hydrogen chloride hydrogen desulfurization section desulfurization graphite reboiler, operating pressure 0.5 kg / cm ~ 2, with 3 kg / cm ~ 2 steam indirect heating, the cover is made of two pieces of graphite bonded together. Diameter of φ660 mm, thickness 150 mm. Often found in the use of graphite cover joints leak, has used a variety of ways to repair, did not achieve the desired results. After the switch to steel lined with two layers of tiles cover, the use of only 1 to 2 months. As the cover larger size, are generally used to fight