According to the principle of straight pipe pressure-balanced bellows compensator, the influence of blind flange force can be eliminated Fundamentally and thereby it is possible to continuously meter pulverized coal amount in series hoppers. 基于直管压力式平衡补偿器的原理,从根本上消除了盲板力的影响,使重叠罐喷煤连续计量得以实现。