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ҺѹվҺѹϵͳѡ͡Һѹѡ

ߣԴҺѹ豸ʱ䣺2016-08-23 16:42:30
0

ҺѹվҺѹϵͳҺѹõȷ

(1)ȷҺѹõѹҺѹ蹤ѹȷҪҺѹڹѭ׶ѹp1ټͱõijͿڵ׽ͿڴܵѹʧppB=p1+pp ҺԪľֲѹʧ·سʧȣϵͳ·δ֮ǰɸͬϵͳƣһ·򵥵Ľϵͳ?pΪ (25)105Paõٷ·ӵϵͳpΪ(515)105PapҲֻƷѹʧ·ϵͳسʧԲƣĶѹʧɴҺѹԪֲƷвңҲɲ±ѡȡ
Сѹ෧ѹʧ(pn)

(2)ȷҺѹõqBõqBִԪѭqmaxϵͳй©ȷ

ٶҺѹͬʱʱҺѹõҪͬʱļҺѹ()Ӧϵͳй©ҺѹĥݻЧʵ½qBK(q)max(m3/s)ʽУKΪϵͳй©ϵһȡ1.11.3ȡСֵСȡֵ(q)maxΪͬʱҺѹ()(m3/s)

ڲòҺѹ׻·ʱҺѹΪqBK(A1-A2)vmax(m3/s)ʽУA 1A 2ΪֱΪҺѹ޸ǻиǻЧ(m2)vmaxΪƶٶ(m/s)

۵ϵͳʹʱҺѹϵͳһѭеƽѡȡqB= ViK/TiʽУViΪҺѹڹеܺ(m3)TiΪĹ(s)ZΪҺѹ׵ĸ

(3)ѡҺѹõĹ񣺸ѹpBqBҺѹԪƷѡPBqB൱ҺѹõĹͺš

ҺѹվҺѹϵͳѡ͡Һѹѡ

ѹpBϵͳ̬ѹϵͳдŹɹ̵Ķ̬ѹ̬ѹȾ̬ѹߵö࣬ԱõĶѹpBӦϵͳѹ25%60%ʹҺѹһѹϵͳڸѹΧѹȡСֵϵͳеѹΧѹȡֵ

(4)ȷҺѹõĹʡ

ٵҺѹõѹȽϺⶨʱ蹦Ϊp=pBqB/103B (kW)ʽУpBΪҺѹõѹ(N/m2)qBΪҺѹõ(m3/s)BΪҺѹõЧʣʽҺѹõЧʿɲο±ȡҺѹùȡֵ֮ȡСֵȡֵȡСֵ

ڹѭУõѹ仯ʱɷֱѭи׶ʣȻƽֵʺͱõת٣ԴӲƷѡȡ׼綯ٽ㣬ʹ綯ʱ䳬Χڡ