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س½ˮϴʵʩ
һسdzйˮſ
سĿǰ·綫ʮ·ɽ·ɽ··һֵڵ·ڽ裬ˮδװ⣬ˮ߾Ѱװϣ깤ˮ40ܵIJҪΪPEܣвīֹܺܣسˮܾܵĿǰΪDN600СΪDN150ܵװϺйܵδϴֹܵˮѹ鶼δ ݣ
1оԺൺоԺƵˮܵʩͼ
2ʩͳһGB5030002001 3ؾϩˮ̡ܹ̼ܵ(CJJ1012004) 4ˮˮܵʩչ淶(GB502682008) 5ˮˮůʩչ淶GB 50242-2002 ܵϴıҪԣ
ǰڶڰװˮз֣װϵĹܵԤͷδ£ɳʯѾԤܿڣмҲ洦ɼɳʯ飬´μװʱûܵװѹδϴֹܵˮѹ鶼ûʹд˽ϴܵ粻Ӧijϴܻʹϵͳܼ½ϵͳĸʩբ˨ˮȹȽʧ飬ʹΪȷϵͳȶУҪˮȫܵϵͳͶʹǰгϴͱҪҵظˮܵʩչ淶ԹܵijϴȷҪ硶ؾϩˮ̡̼ܵCJJ101
1
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2004)ܵijϴΪǿģϸִС
ġϴǰ
1ԴˮˮʷϡˮGB/T14848ˮ15000m/յҪʽˮĹܵԭˮܵˮѳϴϣˮõҩ㣻ˮе豸ѾװϣʱͶʹã
2ˮϵͳҪһȫղ飬ЩܵûӣЩܵδװϣֳȷܵϴˮŷŵص㣨ˮˮˮڣ
3ܵϴ蹤ߡԱ
Ź߰ճDN200DN150DN100ܸ20ףDN500DN400DN300äһ飬DN200DN150ä飻DN500200DN400200DN300150侶һ䱸Ӧİ֡ǯ֡桢˨Ϊ100m3/hΪ10-14ˮ̨䱸Ӧķ̨ЯʽǶ̨䱸̨Խͨʾư˿顢ɫͨͲ˸
Աã֯ԱһֳԱԱһʻԱ繤ܵ
塢ܵϴˮļ
Գˮܵijϴˮˮܵʩչ淶͡ؾϩˮ̡ܹ̼ܵȹع淶ҪܵijϴٲС1.0m/sܵһγϴϺЧӺ20mg/Lˮ24hˮеڶγϴ
1ܵϴˮļ
ݡˮѧԭܵϴˮ˶ѹ㶨ɳܵϴ
2
3
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ʱˮ˽ѹˮԴܵˮϴܵˮͷʧ½ڹܵˮ˷ˮˮɰܵɳʽ㡣
Źܵˮ˺ͳˮˮѹܵˮͷʧĹϵΪ H1-H2=H0
ʽH1H0ֱΪܵڶѹɳˮͷmˮ÷Ŀǰװ̨Ϊ470 m/hΪ35ıã˳ˮѹʱ趨Ϊ30ףسǵƱϵͣƽ¶Ϊ4.5ңˮλڱƽϸߴˮλˮ
H2---ܵˮͷʧm;ܵسˮͷʧɸݳϴܵ
3
d1ijϴ
ٲġˮܵˮ½ãܵľֲˮͷʧҪǰװϵͷ侶ͨȣسˮͷʧ8-12%㡣 ƹܵϴļ
Q=uc A2gH0= ucd2/42gH0 ʽQ------ܵm/s
uc-----ܵϵͳϵɳԲιܵȡ0.82
d2-----Ϊˮܿھm g-----ٶȣm/s
H0-----ܵɳˮͷm
ǹܵϴˮQc=QT
ʽQc------ܵϴˮm
T-------ܵϴʱ䣨Sڴ˴ǹܵװ״γϴǵľϴʱ°ţ
ϴܵھΪDN150200ϴʱΪ3600S ϴܵھΪDN300400ϴʱΪ5400S ϴܵھΪDN500600ϴʱΪ7200S
3
323
2