暖通空调
暖通空調
난통공조
HEATING,VENTILATING & AIR CONDITIONING
2014年
9期
101-105,10
,共6页
符永正%谢雯雯%俞程祎
符永正%謝雯雯%俞程祎
부영정%사문문%유정의
集中空调%水泵%实测数据%选型%变速调节%节能
集中空調%水泵%實測數據%選型%變速調節%節能
집중공조%수빙%실측수거%선형%변속조절%절능
central air conditioning%water pump%measured data%selection%variable speed regulation%energy saving
实测了10个集中空调系统水泵的运行工况，结果表明：水泵的实际流量比设计流量平均高19．33％，水泵的实测效率平均为58．79％。其原因是水泵扬程选得过大，10个工程水泵铭牌工况扬程与所需扬程相比，平均高87．59％。其结果是实际能耗大大超过理想工况，10个工程的水泵实际能耗比理想工况能耗平均高131．45％。采用水泵的变速调节或者叶轮切削调节实现系统的设计流量，均有良好的节能效果。
實測瞭10箇集中空調繫統水泵的運行工況，結果錶明：水泵的實際流量比設計流量平均高19．33％，水泵的實測效率平均為58．79％。其原因是水泵颺程選得過大，10箇工程水泵銘牌工況颺程與所需颺程相比，平均高87．59％。其結果是實際能耗大大超過理想工況，10箇工程的水泵實際能耗比理想工況能耗平均高131．45％。採用水泵的變速調節或者葉輪切削調節實現繫統的設計流量，均有良好的節能效果。
실측료10개집중공조계통수빙적운행공황，결과표명：수빙적실제류량비설계류량평균고19．33％，수빙적실측효솔평균위58．79％。기원인시수빙양정선득과대，10개공정수빙명패공황양정여소수양정상비，평균고87．59％。기결과시실제능모대대초과이상공황，10개공정적수빙실제능모비이상공황능모평균고131．45％。채용수빙적변속조절혹자협륜절삭조절실현계통적설계류량，균유량호적절능효과。
Analyses the measured operation data of water pumps in the 10 central air conditioning projects.The results show that the measured flow rate of pump is 19.33 percent higher than that of design flow rate on average,and the measured efficiency of pump is 58.79 percent higher than that of design value on average.The higher flow rate and lower efficiency result from oversized pump head.The rated head is 87.59 percent higher than required head on average in 10 projects,which results in higher actual energy consumption than that of ideal condition.The actual energy consumption is 131.45 percent higher than that of ideal condition on average in 10 projects.Variable speed regulation of pumps or cutting-impeller control of pumps will contribute to operation on condition of design flow rate as well as sound energy saving effects.
