即刻觀測是尋找布袋破損的常見方式,即工作人員逐個(gè)檢查,發(fā)現(xiàn)布袋有破損的,進(jìn)行拆換。實(shí)驗(yàn)數(shù)據(jù)表明,進(jìn)入2kg空氣壓縮后,正常情況下,布袋氣壓計(jì)讀數(shù)為11~13kg,壓力計(jì)讀數(shù)為07~09kg;透氣性能不良時(shí),布袋氣壓計(jì)讀數(shù)為14~18kg,壓力計(jì)讀數(shù)為04~08kg;