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    Ԕ ڵλã >> „ >> aƷ֪R >> ԔϢ

    ʽVC

    lrg2022-09-12x279
    һNÓˮO ʽVCՇMg_lһNÓˮO
       ʽVC

           ÓˮO                c  늺ĵ̎

      ̎

    Ŀ1 2 c3 ÓˮaӋ ǰ ̎Ӌ 

    ʽVC(5)

    ÞVSоƷ|ˮ̎OɌ⸡̎đҸPԼˮ̎иήaVÓˮ_ζȾĿһNܺõĹҺxOԓC߀ڝ{ϝsҺȡԼmڸNҺxˇ

    c1.늺ĵ̎2.ÓˮЧʸʸ3.ھSo4.Ԅӻ̶ȸBma5.ʹÉL6.Oɿ÷V

    ÓˮaӋǰ

    ʽsVÓˮCW|^V͙CеDԭƳɵĸЧҺxOйˇ̺Ԅӻ̶ȸ\BmƲ͹^̿{һϵЃcʡssһ̶Ϲʡ˽OYõԽԽVđ

    MÓˮ^󲿷xˮͨ^VVSV\MɃɗlVMɵШ΅^ɗlVʩӉuԽ^ɵե^ډե^ܵfĔD̓ɗlVλý׃aļ󲿷֚еxˮg϶ˮVɞ麬ˮ^͵ƬVžVж݁x{Vʵ׃ùεVFϵĹҺxžV_ϴʹMһڵĝsV

    ʽVCڌH̑漰ҪgָУ

     

    ̎ˮۻWˎͶ܄ݛ_ϴˮ

    ގЧV\ٶԴҪָ

    ̎urʽVCCܵҪָӰ푎ʽVC̎غܶҪwFÓˮ^ե^V\ٶV݁(СǺľ)V(͸)xˎ{ЧȷҲǎʽVCYOӋa|ľCwF˽⎧ʽVC̎Ӌ㷽ʽVCăOӋ\ЅxͶˎxһָx

    ̎Ӌ

    2.1 һN㷨ʽVCaȞҪӋㅢĝaӋM̎Ӌ㹫ʽ£

    Q=B·ξ·δ·v·s·γ·β

    ʽУQ——at/h

    B——Vm

    ξ——Vϵһȡ0.850.9

    δ——mһȡ610mm0.0060.01m

    v——VHٶm/min , һȡ36m/min

    s——λrg60min/h

    γ——t/m3һȡ1.03 t/m3

    β——һȡ≥95%

    QM=/MϺʣ×Qt/h

    Ӌ㹫ʽԿԓӋ㷽ԎʽVCaȞҪӋㅢȵγһcʽVC\ЅV\ٶ^VкܴPϵһ߀c|wճˎ{ıҲкܴPϵȵγPI߀ȡQډVCĽYOӋsεLsεVrg͉VV͸xӋ㹫ʽQcδɾPϵx񷶇310mmSʽVCH\γɵĝĺڞVȷҲ

    ԓNӋ㷽]csեεҪgҪ|Y]зӳˎ{ЧVCYOӋ\Ѕ׃،ʽVC̎ӰӋQֵ^һmڎʽVCOӋxʽVCăYOӋָ\еx

    2.2һN㷨

    ˮ͹IUˮÓˮϵyÓˮǰ茦Mмˎ{ˎ{ĿǸÓˮˮH^V迹ֵVrëˮrgCST

    V_ʼrVҺ횿˷^V|VVuγɺ߀횿˷VٞV^VĻʽøҺwͨ^VӵĻԭƌĿTCarman^V́M^Vaʣ̎Ӌ

    T^Ṿ

    (1)ʽУV——VҺwe m3

    t——^Vrg s

    P——^VPa

    A——^Vem2

    μ——VҺĄճPa·s

    ω——V^λweVҺ^V|Ͻĸɹwkg/m3

    r——m/kgVxλ^Veφλ؞Vе

    Rf——^V|迹1/m2

    ωĶxɌʽ

    2ʽУQ0——M̎m3

    Qf——VҺm3

    Ck——Vйw|kg/ m3

    ҺƽPϵQ0= Qf + Qk

    ƽPϵQ0C0= QfCf+ QkCk

    ã3ʽУC0——Mԭйw|g/L

    Cf——VҺйw|g/LÓˮϵyһҪw≥95%CfֵСHӋrȡCf =0

    Qk——VL

    ^VaʵĶxλrgȆλ^VeϮaĞVkg/(m2·s)kg/(m2·h)

    Ӌ㷽O^V|迹Rf=0tT^Ṿ1ʽ׃飺

    4OV؞WtW=ωVV=W/ω루4ãʽVC̎LԽ^ӋVأ飺(kg/m2.s)

    55ʽ鎧ʽVC̎һNӋ㹫ʽ

    ڳˮSÓˮϵyཛˎ{ırڣ14×1012m/kgҾͨ^yrֵ_^ļˎЌڎʽVCһͨ^ˎ{ı迹r(13)×1012 m/kgxÓˮr=(24)×1012m/kghض20r\ճμ=0.001Pa·s

    ã5ʽӋrڎʽVһwCփɲӋ㣺sκ͉եsΌ^VÓˮ^VPMsĸ߶ȣƽ1mm=9.5PaӋC0MCksһɰ810%ͨ^sÓˮʧȥԕrȣ^VrgtsLcVٶ

    ډեPͨ^VեLcV|eӋM뉺եεĝC0sȣ810%CkKVȣ25%20%Vrgt=m/Tm=ts/Tt=ts/T2ts錍HVrgեΞVcեL|LեΞV\ٶãT鉺Vڣե\Еrg

    scեε̎ĺͼ鎧ʽVC̎Ӌδ]^V|V迹RfV迹RfcVIJ|ͨ[һx800010000m3/(h·m2)]PK̎Ӌ̎һϵKKһȡ0.90.95鎧ʽVC̎

    ڶN㷨^һN㷨msԓӋ㷽аˎʽVCYOӋ|\ЅȌ̎ӰʽVCĽYOӋͶˎ\ЅxߎʽVC̎һָxͨ^Ӌsε̎ʽVC̎Ҫ

     


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