BAF池反冲洗进气管回水分析及解决.pdfVIP

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BAF池反冲洗进气管回水分析及解决

【摘要】本文对银川污水处理公司第三中水厂曝气生物滤池反冲洗时,反冲

洗风机停止后发生的曝气风机回水现象进行阐述,对反冲洗步骤进行分析,找出问

题的关键点:一、反冲洗进气管道的U形阻水弯高度与液面高差过小;二、反冲洗

进气阀在反冲洗风机停止后不能迅速关闭以阻止水进入管道;三、由温差导致的

冷凝水累积在管道内。针对此三点提出改进方案,即提高反冲洗进气管道U形阻

水弯的高度;在反冲洗进气阀前加装止回阀;设计阻水弯为一端高一端低,最大限

度阻止冷凝水进入阻水弯保护端。

【关键词】曝气生物滤池;反冲洗步骤;压力;回水

TheBAFpondisanti-toflushtoreturntowateranalysisandsolveintothe

windpipe

【Abstract】ThistexttothesilverChuanwastewatertreatmentcompanythree

mediumwaterfactoryPuspiritthelivingcreaturefilterpondanti-flush,anti-flush

breezemachinestopempressoccurrenceofPuspiritthebreezemachinereturnto

waterphenomenontocarryonelaborate,rightnessanti-flushasteptocarryon

analysis,seekwrongofkeypoint:A,anti-flushcurvedintotheUformZuwaterof

thewindpipewayheightandliquidnoodlesGaoChaGuo4besmall;Two,anti-flush

intospiritvalveatanti-flushbreezemachinestopempresscan’tbequickcloseto

keepwaterfromgetintopiping;Three,thecongealedwateraccumulationcauseby

differenceintemperatureisinthepiping.Aimatthis3:00putforwardan

improvementproject,thenexaltationanti-flushtheUformZuwaterintothe

windpipewaycurvedofheight;Atanti-flushtoaddcheckvalvebeforethevalveinto

thespirit;ThedesignZuwatercurvedforacarryGaoYiDuanlow,thebiggestlimit

keepcongealedwaterfromgetintoZuwaterbecurvedprotectiontocarry.

【Keywords】ThePuspiritlivingcreaturefilterpond;Anti-flusha

step;Pressure;Returntowater

银川污水处理有限公司第三中水厂位于银川市西夏区丽子园南路,设计日处

理量为3×104m3,采用曝气生物滤池加高效纤维滤池过滤的处理工艺,出水水

质达到国家城市污