【摘要】 介绍了一种新设计的QM-1型叠片式滤头,并对不同材质的QM-1型过滤头和市售的PB-500型叠片式滤头进行了水力试验。试验表明,用塑料制的QM-1型滤头阻力系数最小。更多还原

【Abstract】 This paper introduces a new kind of filter-head with folded blade (type QM-1). The hydraulical tests to the filter-head with folded blade third type QM-1 made of Different matterials and type PB-500 which is sold on the market now have been made. The tests show that the resistance coefficient of type QM-1 made of plastic is minimum.更多还原