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ϺY{(dio)޹˾gӭ Ϻ K Ͼ ղرվ | ھ(bo)r(ji) | վc(din)؈D | “(lin)ϵY |
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λã > „ > {(dio)֪R(sh) >
ˮx
^ˮõxȡӋ(j)䌍(sh)ǹ㣨ܶӋ(j)㹫ʽǹģֵļ(x)Щ]ă(ni)ȫЩǾ_Ӌ(j)
؄ea(b)һ䣺(dng)O(sh)Ӌ(j)O(sh)~r(sh)ᵽ^(gu)O(sh)~ܶࡣͬˮܵˮٽhӋ(j)󣬲ȡֵ
P(gun)ˮÓP(yng)^(gu)(wn)}O(sh)Ӌ(j)xȡˮÓP(yng)^(gu)ʹøԣēP(yng)̓QȡӲʹˮӴ؄e߀ʹˮ늙C(j)ؓ(f)ɼӴӴl(f)Ӵ“Q^(gu)o(w)(sh)S”߀Скܴ߀Ҫ늙C(j)ġ
“ˮóډֻ0.22”f(shu)ʲôˮM(jn)ډdž(wn)}P(gun)I猢_(ki)ʽϵy(tng)ˮ÷100׸ߵډ0.22MPa@(g)ϵy(tng)ˮ÷ڵ100׸ߵډ0.32MPa
ˮÓP(yng)̺(jin)׹㷨
ůͨˮõxͨxñD(zhun)(sh)ns130150xʽˮˮõ(yng)ˮC(j)M~1.11.2_(ti)ȡ1.1_(ti)“(lin)ȡ1.2ɴȡÿ100׹L(zhng)س̓pʧ5mH2OˮÓP(yng)̣mH2O
Hmax=P1+P2+0.05L (1+K)
P1ˮC(j)Ml(f)ˮ
P2ԓh(hun)в“(lin)ĸռ{(dio)δbõˮpʧһ_(ti)ˮ
Lԓh(hun)·ĹL(zhng)
Kh(hun)·оֲ(dng)L(zhng)ȿͺcֱܿL(zhng)ıֵ(dng)h(hun)·^L(zhng)r(sh)Kֵȡ0.20.3h(hun)·^̕r(sh)Kֵȡ0.40.6
˾SˮC(j)ˮÓP(yng)̌(sh)ù㷽
@Մ]ʽ{(dio)ˮϵy(tng)M?yn)@Nϵy(tng)õϵy(tng)
1.ˮC(j)MəC(j)MSṩһ60~100kPa
2.·ĥֲІλL(zhng)ȵĥĦMȡQڼg(sh)(jng)(j)^ȡֵt܏СͶYʡˮ\(yn)ܺĴȡֵСt֮ĿǰO(sh)Ӌ(j)ˮ·ıĦM˿150~200Pa/m(ni)܏^r(sh)ȡֵСЩ
3.{(dio)δbĩbõ(li)L(fng)C(j)P(pn)ܙC(j)MMʽ{(dio)Ǹ(j)O(sh)Ӌ(j)Ŀ՚M(jn){(dio)P(pn)ܵą(sh)ˮزS(jng)^(gu)P(pn)Ӌ(j)ṩS~rֵڮa(chn)Ʒӱܲ鵽(xing)һ20~50kPa(ni)
4.{(dio)(ji)y{(dio)gҪҜصͨ^(gu)ڿ{(dio)ĩbõˮ·O(sh)늄(dng)ͨ{(dio)(ji)ynj(sh)F(xin)ҜؿƵһNֶͨyҎ(gu)yT(mn)ȫ_(ki)r(sh)ͨcS(li)xġSȡֵtyT(mn)ĿܺãȡֵСtܲyT(mn)ȫ_(ki)r(sh)ĉռԓ֧·İٷ?jn)?sh)Qy(qun)ȡˮϵy(tng)O(sh)Ӌ(j)r(sh)Ҫy(qun)S>0.3ǣͨ{(dio)(ji)ySһ㲻С40kPa
(j)ԴԹӋ(j)һs100mߵĸߌӽ{(dio)ˮϵy(tng)ĉpʧҲѭh(hun)ˮēP(yng)̣
1.ˮC(j)Mȡ80 kPa8mˮ
2.·ȡC(j)?j)?ni)ijˮˮ·ȵ50 kPaȡݔ(c)·L(zhng)300mcĦ200 Pa/mtĥ300*200=60000 Pa=60 kPa翼]ݔ(c)ľֲĥ50%tֲ60 kPa*0.5=30 kPaϵy(tng)·Ŀ50 kPa+60 kPa+30 kPa=140 kPa14mˮ
3.{(dio)ĩbMʽ{(dio)һL(fng)C(j)P(pn)ȡǰߵ45 kPa4.5ˮ
4.ͨ{(dio)(ji)yȡ40 kPa0.4ˮ
5.ˮϵy(tng)ĸ֮͞飺80 kPa+140kPa+45 kPa+40 kPa=305 kPa30.5mˮ
6.ˮÓP(yng)̣ȡ10%İȫϵ(sh)tP(yng)H=30.5m*1.1=33.55m
(j)ϹY(ji)Ի(li)ͬҎ(gu)ģĿ{(dio)ˮϵy(tng)ĉpʧֵ䑪(yng)ֹδ(jng)^(gu)Ӌ(j)^(gu)ڱأϵy(tng)pʧӋ(j)^(gu)ˮÓP(yng)x^(gu)󣬌(do)M(fi)
ˮÓP(yng)O(sh)Ӌ(j)
1䡢ˮ·ϵy(tng)
_(ki)ʽˮϵy(tng)
Hp=hf+hd+hm+hs    10-12
]ʽˮϵy(tng)
Hp=hf+hd+hm       10-13
ʽ hfhd——ˮϵy(tng)س;ֲpʧPa
    hm——O(sh)pʧPa
    hs——_(ki)ʽˮϵy(tng)oˮPa
hd/ hfֵСסլ1~1.5֮g͸ߌӽ0.5~1֮gh(yun)xݔ͹ܵй䣩0.2~0.6֮gO(sh)pʧҊ(jin)10-5
2sˮ·ϵy(tng)
1ssˮ
O(sh)pʧ
O(sh)Q kPa ע
xʽC(j)
l(f) 30~80 ͬa(chn)Ʒ
50~80 ͬa(chn)Ʒ
ʽC(j)
l(f) 40~100 ͬa(chn)Ʒ
50~140 ͬa(chn)Ʒ
s 20~80 ͬF
ˮP(pn) 20~50 ˮٶ0.8~1.5m/s
ύQ 20~50
L(fng)C(j)P(pn)ܙC(j)M 10~20 L(fng)C(j)P(pn)30kPa
Ԅ(dng)y 30~50

ssˮ԰ʽӋ(j)㣺
   10-14
ʽQ——sߟkWsʽC(j)ȡC(j)ؓ(f)1.3ңʽC(j)ȥC(j)ؓ(f)ɵ2.5
c——ˮıȟᣬkJ/kg· oCؕr(sh)c=4.1868 kJ/kg·oC
tw1-tw2——sM(jn)ˮزoCsʽC(j)ȡ4~5 oCʽC(j)ȥ6~9 oC
2ˮÓP(yng)
sˮP(yng)
Hp=hf+hd+hm+hs+ho
ʽhfhd——sˮ·ϵy(tng)س;ֲmH2O
hm——mH2O
hs——sˮ߶ȣsʢˮصĸ߲mH2O
ho——s쇊FmH2Os5 mH2O
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