火電廠濕法煙氣脫硫省卻氣氣換熱器(GGH)的可行性研究

1、火電廠濕法煙氣脫硫省卻氣氣換熱器(GGH)的可行性研究更新時間：2009-09-17 15:03:30 胡志光,惠遠(yuǎn)峰,常愛玲,汪洋,候文龍(華北電力大學(xué),河北保定071003)摘要分析脫硫后煙氣的腐蝕性,并結(jié)合技術(shù)、經(jīng)濟(jì)等因素論證燃煤電廠濕法脫硫(FGD)裝置加裝GGH的利與弊。分析認(rèn)為,燃煤電廠濕法脫硫裝置不設(shè)GGH是可行性的,建議新建脫硫項目不裝設(shè)GGH;已安裝GGH的脫硫裝置,需對其尾部設(shè)備采取防腐措施。關(guān)鍵詞火電廠;燃煤;煙氣脫硫;氣-氣換熱器(GGH);防腐中圖分類號X511文獻(xiàn)標(biāo)識碼A文章編號10023364(2007)01000104目前,用于火電廠濕法煙氣脫硫系統(tǒng)(FGD)的

2、氣-氣換熱器(GGH)存在一些技術(shù)問題,最突出的是泄漏嚴(yán)重,不僅影響脫硫經(jīng)濟(jì)性,還降低脫硫效率。除此之外,GGH還存在著如能源消耗、腐蝕、堵灰等問題,且運(yùn)行維護(hù)費(fèi)用高。本文分析了濕法脫硫后煙氣的腐蝕性,結(jié)合技術(shù)、經(jīng)濟(jì)等因素論證了加裝GGH的利與弊。1GGH作用評價1.1GGH不能有效減輕尾部設(shè)備的腐蝕經(jīng)濕法FGD后的煙氣酸露點溫度在(100135)范圍,而煙氣經(jīng)GGH再熱之后的溫度為80左右,因此在FGD下游設(shè)備表面仍然會產(chǎn)生新的凝結(jié)酸液,引起煙道和煙囪點腐蝕。由于煙氣經(jīng)過GGH再熱以后溫度升高,造成煙道和煙囪中的環(huán)境溫度比不安裝GGH時高約30。金屬材料的酸腐蝕對溫度是非常敏感的,溫度升高會

3、使凝結(jié)酸液的腐蝕性更強(qiáng)。1.2GGH對煙氣抬升高度及SO2排放速率的影響13以江蘇某電廠1600MW機(jī)組數(shù)據(jù)為例,煙囪出口風(fēng)速按4m/s計,煙氣抬升高度根據(jù)GB13223-2003火電廠大氣污染物排放標(biāo)準(zhǔn)4中城市、丘陵條件進(jìn)行計算(表1)。從表1可見,GGH對煙氣抬升有較明顯的作用。從排放速率看,由于經(jīng)脫硫后的煙氣中SO2濃度大幅度降低,實際排放速率又遠(yuǎn)遠(yuǎn)低于允許排放速率,因此,設(shè)與不設(shè)GGH均不會對排放速率產(chǎn)生大的影響。1.3GGH對污染物落地濃度的影響安裝濕法煙氣脫硫裝置后,由于脫硫塔具有極強(qiáng)的洗滌作用,煙氣中的大部分粉塵被除去。根據(jù)國內(nèi)幾個脫硫項目的性能試驗數(shù)據(jù)可知,濕法煙氣脫硫裝置的除

4、塵效率均可達(dá)到80%以上,脫硫后煙氣中的粉塵濃度一般在20mg/m3以下。因此,本文不再計算粉塵的影響。仍以江蘇某電廠1600MW機(jī)組數(shù)據(jù)為例,計算所得的SO2和NOx落地濃度(標(biāo)準(zhǔn)狀態(tài),下同)見表2。同時,將GB3095-1996環(huán)境空氣質(zhì)量標(biāo)準(zhǔn)中規(guī)定的SO2、NOx的濃度限值5列于表3。由表2可見,當(dāng)穩(wěn)定度處于A與B、C、E與F時,設(shè)與不設(shè)GGH污染物落地濃度的差距較小,當(dāng)穩(wěn)定度處于D時,污染物落地濃度有一定的差別;由于SO2源強(qiáng)度在脫硫之后大大降低,因此無論是否安裝GGH,排放的SO2只為允許值的很小一部分;由于FGD不能有效脫除NOx,NOx的源強(qiáng)度并沒有降低。由表2、表3可以看出,N

5、Ox的落地濃度只為允許值的10%左右,因此是否安裝GGH對環(huán)境的影響不明顯。2不設(shè)GGH的經(jīng)濟(jì)性評價6某電廠2600MW機(jī)組燃煤硫分為0.7%,采用石灰石-石膏濕法脫硫工藝,一爐一塔,全煙氣脫硫,脫硫率不低于95%。2臺爐合用1座雙管煙囪,煙囪直徑6m。脫硫前后的煙氣參數(shù)見表4。脫硫系統(tǒng)不設(shè)GGH帶來運(yùn)行參數(shù)方面的變化主要有:(1)FGD排煙溫度降至52。(2)由于進(jìn)入吸收塔的煙氣溫度較高,需要釋放更多的熱量和蒸發(fā)更多的水分才能夠達(dá)到絕熱飽和狀態(tài),2套FGD裝置工藝水消耗約增加76t/h。(3)由于不需要GGH驅(qū)動電機(jī)及密封風(fēng)機(jī),功率減少約200kW,此外脫硫系統(tǒng)煙氣阻力降低,每套FGD增壓風(fēng)

6、機(jī)的軸功率約可減少800kW,2套FGD裝置功耗共降低約2000kW。濕法煙氣脫硫裝置不設(shè)GGH時,煙囪需要采用防腐措施,防腐方案主要有:(1)在混凝土煙囪內(nèi)襯耐酸瓷磚;(2)鋼管煙囪內(nèi)表面襯玻璃鱗片、鈦合金板或鎳基合金板。表5是4種煙囪防腐方案的技術(shù)經(jīng)濟(jì)比較。取消GGH可節(jié)省FGD建設(shè)投資約4200萬元,其中2臺GGH設(shè)備費(fèi)約3600萬元,GGH支架、減少的煙道及支架以及相應(yīng)的安裝和土建費(fèi)用等約600萬元。煙囪防腐需增加費(fèi)用1800萬元(襯鎳基合金板)。因此,2套脫硫裝置不設(shè)GGH可節(jié)省投資費(fèi)用約2400萬元。此外,運(yùn)行費(fèi)用電價按0.35元/(kWh)計,不設(shè)GGH每年可節(jié)省電費(fèi)200055

7、000.35=385萬元;水價按1.0元/m3計,不設(shè)GGH每年將增加水費(fèi)7655001.0=41.8萬元;按設(shè)備費(fèi)的25%計,不設(shè)GGH每年可節(jié)省維護(hù)費(fèi)36002.5%=90萬元,則2600MW機(jī)組煙氣脫硫裝置采用不設(shè)GGH方案,2臺爐每年可節(jié)省運(yùn)行維護(hù)費(fèi)約433萬元。對2600MW機(jī)組煙氣脫硫裝置設(shè)與不設(shè)GGH的經(jīng)濟(jì)性進(jìn)行比較,結(jié)果見表6。由表可見,不設(shè)GGH的經(jīng)濟(jì)性十分顯著。3安裝GGH帶來的問題據(jù)初步推算,目前國內(nèi)火電廠FGD采用GGH的約占80%以上,若按每年新增FGD容量3000萬kW計算,安裝GGH的直接設(shè)備費(fèi)用就達(dá)11億元左右。其它相關(guān)費(fèi)用包括:因安裝GGH而增加的增壓風(fēng)機(jī),控

8、制系統(tǒng)增加的控制點數(shù),增加煙道長度和GGH支架及相應(yīng)的建筑安裝費(fèi)用等,其總和約占FGD總投資的15%20%。安裝GGH對煙氣的壓降約為1200Pa,為了克服這些阻力,必須增加增壓風(fēng)機(jī)的壓頭,這就使FGD系統(tǒng)的運(yùn)行費(fèi)用大大增加。脫硫后煙氣在GGH中由45左右升高到80左右,即GGH一般在酸露點以下運(yùn)行,因此在GGH的冷端會產(chǎn)生大量粘稠的濃酸液,這些酸液不但對GGH的換熱元件和殼體有很強(qiáng)的腐蝕作用,而且會粘附大量煙氣中的飛灰;另外,穿過除霧器的微小漿液液滴在換熱元件的表面上蒸發(fā)之后會結(jié)垢,這些固體物會堵塞換熱元件的通道,進(jìn)一步增加GGH的壓降。國內(nèi)有的電廠存在GGH粘污嚴(yán)重而造成增壓風(fēng)機(jī)振動過大的

9、問題。以北京熱電廠、半山電廠和重慶電廠為例,這3個電廠的FGD系統(tǒng)都裝有GGH(前2個電廠的GGH為回轉(zhuǎn)式,后者為蒸汽加熱器),在運(yùn)行過程中都有不同程度的積灰、腐蝕和磨損。有關(guān)GGH結(jié)垢情況見圖1和圖27。4結(jié)論與建議(1)濕法脫硫再熱后的煙氣仍具腐蝕性,且腐蝕性等級增強(qiáng)。(2)脫硫后煙氣的酸露點溫度在100135之間。如果不安裝GGH,脫硫后的煙氣溫度在50左右;安裝GGH后的煙氣溫度在80,均低于煙氣的酸露點溫度,因此只要采用濕法脫硫,煙囪就必須防腐,與是否安裝GGH無關(guān),即GGH在解決FGD尾部設(shè)備腐蝕問題上作用不大。(3)GGH本身占地面積大,還存在著腐蝕、堵灰等問題,且運(yùn)行維護(hù)費(fèi)用高

10、,造價昂貴;GGH還是造成FGD事故停機(jī)的主要設(shè)備;安裝GGH后,脫硫再熱后的煙氣對于FGD下游設(shè)備的腐蝕,不但沒有減輕,相反由于腐蝕環(huán)境的溫度比沒有GGH時升高了不少,反而加劇了煙氣對金屬材料的腐蝕。因此安裝GGH給FGD帶來的負(fù)面影響很大。(4)火電廠煙氣濕法脫硫后的煙氣升溫,主要是在一定程度上提高煙氣抬升高度和有效源高,從而在一定條件下改善煙氣擴(kuò)散條件,而對污染物的排放濃度和排放量沒有影響。(5)SO2的源強(qiáng)度在脫硫之后大大降低,因此無論是否安裝GGH,SO2的排放只占環(huán)境允許值的很小一部分。此外,盡管FGD不能有效脫除NOx,但因NOx的落地濃度只占環(huán)境允許值的10%左右,因此對環(huán)境的

11、影響不明顯。(6)濕煙氣直接排放可能會使煙氣抬升高度降低,地面污染物濃度增高,尾部煙道與煙囪的腐蝕加劇。脫硫后煙氣抬升高度的降低可通過脫硫后煙氣中污染物的減少來補(bǔ)償,因而不會造成環(huán)境污染的加大,而尾部煙道和煙囪的腐蝕可采取防腐措施解決。(7)濕法煙氣脫硫工藝省卻GGH是可行的,不設(shè)GGH的經(jīng)濟(jì)性十分顯著。參考文獻(xiàn)1張華,何強(qiáng),陳振宇,等.濕法煙氣脫硫中GGH對污染物擴(kuò)散影響初探J.電力環(huán)境保護(hù),2005,21(2):1-3.2姚增權(quán).濕煙氣的抬升與凝結(jié)J.國際電力,2003,7(1):42-46.3姚增權(quán).濕法脫硫煙氣直接排放的環(huán)境問題探討J.電力環(huán)境保護(hù),2003,19(2):5-8.4GB

12、12223-2003,火電廠大氣污染物排放標(biāo)準(zhǔn)S.5GB3095-1996,環(huán)境空氣質(zhì)量標(biāo)準(zhǔn)S.6許正濤,吳樹志,范新寬.濕法煙氣脫硫系統(tǒng)不設(shè)GGH的經(jīng)濟(jì)性及對環(huán)境影響的分析J.電力環(huán)境保護(hù),2005,21(2):57-59.7舒惠芬.北京、半山、重慶三個電廠脫硫后評估簡要情況及對有關(guān)問題的討論C.火電廠煙氣脫硫技術(shù)及管理工作研討會論文集,2004:249-254.9JWKffwvG#tYM*Jg&6a*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFyeQ!djs#XuyUP2kNXpR89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9Cp

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20、4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!z

21、n%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE

22、9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5

23、pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNuGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6Y

24、WRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK

25、8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqvadNu#KN&

26、MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$

27、vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYW

28、pazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYW

29、pazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gT

30、XRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&k

31、sv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%MadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*adNu#KN&MuWFA5uxY7JnD6YWRrW

32、wcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z8

33、9AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5ux

34、Gjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5ux

35、Y7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ks

36、v*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*

37、3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNuGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5

38、pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD

39、6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%

40、Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89Amv$UE9wEwZ#QcUE

41、%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA

42、5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%MzadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnG

43、K8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWF

44、A5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ks

45、v*3tnGK8!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3t

46、nGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz84!z89Amv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpaza

47、dNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7J

48、nD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK

49、8!z89AmYWpazadNuGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wE

50、wZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#K

51、N&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqvUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$U*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tn

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