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φ1520×604毫米双动滑阀装于我厂齐鲁石化公司胜利炼油厂联合装置车间催化单元再生器烟道上,阀体是用20g 钢板焊接而成,与烟道焊接成一体,1977年5月安装使用。根据生产上的需要,操作压力由0.7公斤/厘米~2提高到1.5公斤/厘米~2,从而在生产中阀体法兰经常出现跑漏催化烟气。曾用过加厚垫片的办法来解决,但仍然无效,影响了正常运行。直到84年我厂大检修中发现了阀体和阀盖法兰端面沿纵、横方向全长上产生了3毫米左右的弯曲变形,(如图1所示),在没有更换新阀的条件下,采用了增焊垫板的方法进行修复,才解决了问题。
φ1520 × 604 mm double action slide valve installed in our plant Qilu Petrochemical Company Shengli refinery unit plant catalyst unit regenerator flue, the valve body is welded with 20g steel, and flue welded into one, in May 1977 installation use. According to production needs, operating pressure increased from 0.7 kg / cm ~ 2 to 1.5 kg / cm ~ 2, resulting in the production of valve flange often ran off catalytic fumes. Used to increase the way to solve the gasket, but still invalid, affecting the normal operation. Until 84 years I found in the overhaul of the valve body and bonnet flange face along the length and width of the entire length of about 3 millimeters of bending deformation (Figure 1), without the replacement of the new valve conditions Under, using the method of welding pad repair, only to solve the problem.