Dieu 385 .Khi van hanh cac thiet bi kie'!u kh6i phai dam bao Van hilnh tin cay lau dai 6n dinh voi cac chi tieu kinh te'! cao nMt phil hc,lp bie'!u dll ph\! tai cua dieu dO.
Dieu 386 : De'! pM dinh bie'!u dll ph\! tai cua dieu dO pMi dam bao thay d6i Ph\! tai cua kh6i trong pham vi cO dieu chinh va de'!n gia tri kY thuat nbO nMt, ngilng kh6i daa vao dl! phOng va cac cM dO khili dOng kMi til cac tr\lng tMi nhi¢t kMc nhau.
Dieo387 : Thythu(lc vao trang tMi nhi¢t clla thie'!t bi,cac ch<!" dO khili dong dllQc pMn fa nhlt sau :
I-Til tf\lng tMi nong.
2-Til trang thai chua nguol.
3-Til trang thai nguoi vii gan nguoi.
Ole eM dO khoi dong d6 SO bo duoc gioi han theo thili gian ngung urong ung vci duoi 6-10 giil,til 6-10 den 70-90 giil va tren
70-90 giil. Tr] s6 cu tM cua nhiet dO kim loai cua hoi vao tua bin xac dinh ranh gioi cac che dO khoi dong can neu r6 trong qui trinh cua tung nha may.
Dieu 388 : Tuy nguyen nhan va cong nghe sit dung vice ngung kh6i duoc phan ehia nhu sau :
1-0" dua kh6i vao du phong cling nhu d€ tien hanh sua chua khOng phu thuoc van trang thai nhiet cua lo hoi, duong 6ng hoi vii tua bin .khong phai lam nguoi cuong bile thiet bi,
2-D" dua kh6i vao d;ti tu cling nhu thuc hien cong tac sita .chira duoc lam nguoi cuong bile tua bin.
3-D" tien M\1h cong tac sita chua tai lo hoi va duong 6ng hoi chinh, neu viecngung khong phai do n6 6ng be mat d6t gAy
fa duoe lam nguOi ellong bile cae tuyen hoi nlloe eua 10 va duilng 6ng d~n hOi.
4-Ngitng s\l e6 :th\le hien theo mng ngh?, xae dinh nguyen . nMn ngilng va kM nAng khoi dOng 1;ti.
meu 389 : Thiet bi, cae so <Ill khili dOng vii SO db di¢n, van, bao On, h? tMng nh6m 10 viih¢ th6ng nlloe eua kh6i va eua nM may dien pMi dam bao san sang ehovi¢c khoi dong kh6i til Mt L-y tr;tng thai nhiet nao voi thili gian ngan nMt va tuAn.thea t6t tieu ehuan an toano
Dieu 390 : Trit truong h<.lp khoi dOng tit trang tMi n6ng, con khili dong til bat kY tr;tng tMi nhiet nao pMi th\le hi¢n0 thOng s6 truQt etia hoi. T;ti cae kh6i trong de an thiet ke dii m trang
b], phai sit dung cac phuong tien dieu ehinh nhi¢t dO hoi nlloc vii hoi qua nhiet trung gian khi khili dOng.
Dieu 391 : Cho phep thay dlli so <Ill khili dOng caa thiet k6 o cac kh6i dang van hanh trong cac truong hQp sau:
I-D6i voi vi¢e thit nghiem cd muc tieu cac gilli phap SO <Ill moi vii cac eM do khoi dong moi dil dll<.le s\l tMa thuan caa
nha che tao.
2-Khi hi¢n dai hoa cac SO db khoi dong voi muc dieh dat gan dting SO <Ill khoi dcng mliu. Kh6i luong vii trinh I\lhien d;ti hoa cac SO <Ill khili dong kh6i phai duoc s\l thoa thu~n ctia V.., Khoa hoc k)' thuat-Bo Nang luong,
Dieu 392 : Khoi dong vii ngung kh6i pMi thuc hien dlloi sll chi dao cua truong kh6i, con sau d;ti tu, trung tu vii sita chua nho (d6i voi kh6i e6 cong suat500 MW'sau batkY mOt sita chua nao.) phai e6 mat cua quan d6e hay pho quan d6e phan xlIong 10 tua bin.
Dien 393 : Khili dl)ng va ngilng kh6i pMi tien Mnh theo quy trinh eua nM may dii du<.Je ky sll ehinh duy¢t.
Quy trinh nily pMi cd n¢i dung :
I-Trinh tll cae thao tae thlle hi¢n cae eM dl).
2-Bieu db eM do thay dlli thOng .6 trong cae eM dl) khoi dong va ditng (thOng s6 hoi, ph.., tai eua kh6i, tlltJ. s6 quay eua rOto tua bin, Illu Illong nhien li¢u...) cd chi r6 thoi gian thlle hi¢n cae thao tae ehinh.
3-Trinh I\l dong, (cat) cae thiet bi bao v¢ mng ngh? vii cae bl) dieu ehinh tll dl)ng ;
5- Kh6i luong kiem tra trang thai nhiet va co khi cua thiet bi can thiet de dam bao dO tin cay cua cac che dO van hanh.
6-Kh6i luong t6i thieu cac bo dieu ehinh tll dOng duoc stl dung trong khoi dOng.
7-Cac chi dan nham loai trir viec mo cac van ciia so dl\khiJi dong khong thuoc pharn vi stl dung trong khi van hanh binh
thuong.
Dieu 394 : Viec bien soan qui trinh cua nha may phai chu '1 den nhitng d;ie diem cua de kh6i cu tM nhu sau :
I-D6i voi cac kh6i dllu tien tren CO sO qui trinh cua nha che
tao thiet bi, .
.2-D6i voi cac kh6i san xust hang loat tren co sO qui trinh khoi dong va ngung kMi mdu tuong ung voi loai thiet bi caa kh6i.
Dieu 395 : cam khOi dong khdi trong cac truong hop : l.Hu hOng bilt kY mOt thiet bi bao v¢ eong ngh¢ nao tae dOng den vi¢e ngling thiet bi eua kMi;
2- Htl hOng thiet bi di~u khien til xa tac dong den cae bO PMn di~u ehlnh eung nhtl eae van dung de xtl 1'1 S\l c6;
. 3-Khi c6 cae di~u ki¢n dm khoi dong thiet bi ehinh va phu tung tuong itng voi qui pham nay;
4-Thiet bi khtl mu6i ella kMi ehtla san sang lam vi¢c; 5-Hll hong gia do va gia treo eua duong 6ng.
.. Dieu 396 : Vi¢C lap dJiy dbthi phu tai M tMng nang Ill\lng
VOl cae eM dO khOng neu trong cae quy pham nay (vi du eM d<)
don~ cO di¢n, eM dO dl! phOng quay t6c d<) tMp ...) ehi eho phep . sau Klu di\ du<,lC sl! thoa thu~nella nha eM tao va du\le Vu Khon
hQC Ky thuat - BO Nang luong duyet va dtl\le b6 sung vao qui trinh caa nha may.
Dieu 397 : Trong dieu kien van hanh binh thuong theo nguyen tae cac kh6i may nang luong phai tham gia vao viec I~p dJiy nhung thay d6i ngoai ke hoach cua bieu dl\he thong nang Itl~ng.
Dleu 398 : Gioi han duoi cua pham vi dieu chinh cua kln6i can phai duoc quy dinh xuat phat til viec duy tri cac thanh phan khong thay d6i cua cac thiet bi dang v~n hanh va sl! lam viec ella hetMng dieu chinh tl! dong 0 t~t ci cac giai phu tai.
Dieu 399 :0vao nhirng giil thap diem phu tM cua M thong nang tuong thi phu tai ky thuat tMp nMt cua khoi can phai dat duoc quy dinh tuong ung voi tieu chudn phu tai nho nMt eho phep ella khdi. .Khi d6 cho phep thay doi thanh phlln cua cac thie! bi van hanh vacal mot vai b<) dieu chinh Il! dong rieng bitt ra.
Cho phcp eM do van hanh mot than cua sO db khoi t6 may kep (2 10 1 may) eho phCp nhtl la mOt ngo(l.i I¢khi e6 eae kh6 khan d;ie bitt vao nhung giil tMp diem ph,! tai ella he tMng nang lu<)ng.
Dieu 400 : Khi phu tai ella kh6i tuong itng voi gioi han duoi eua ph(l.m vi dieu ehinh hOae ph,! tai ky thuat tMp nMt vi¢e giam nhi¢t do hOi moi va hOi qua rthi¢t trung gian khOng vtl\lt qua Iri s6 quy dinh eila nM eM 1(1.0.
Dieu 401 : T6e d¢ gioi han thay d6i ph,! tai eua kMi trong ph(lm vi dieu ehinh clIn phili du\le xae dinh trell co sO quy trlnh eua nM eM t(l.O hay e6 .1$ thOa thu~n voi nba eM tao do e6 cae
ket qua thi nghi¢m.
Dieu 402 : Cae kh6i t6 may da thiet ke lam vi¢e voi ap 11$c hoi moi c6 dinh clio phep van Mnh 0 eM d¢ ap Il!e trl/<)t v6i
mile mo h<'!1 van di~u chinh cua phan eao ap caa tua bin sau
khi V,! hoa hQC "1thuat - BO Nang luong eho phep.
Dieo 403 : am duy tri khci trong truong hcp giam lAi s1/
c6cua 16 tua bin-may pMI dien d€n phu tai 11/ dung hoac d€n tri s6 kheng lai neu cal cac thiet b] 11/ dOng giam phu lai 10 hoi.
CHUONG 20 A
rarsr BI TVA BIN Kilt
Dieo 404 : Khi van hanh tua bin khi (TBK) can dam bao: - Lam viee 6n dinh va kinh I€ cua cacthi€t hiehinh va phu
theo dO th] phu tai cua dieu d¢;
- Co kha nang lam viec 0 cac thong s6 dinh mile;
- DO sach phan dan khi, tua bin va cac lhi€t hi trao dOi
nhiet ;
- Khong bj 1l;>1 khong l:~i va khi cling nhu do ri nhien lieu
dllu nhon va nuoc ;
Dieu 405 : He thong dieu ehinh cua TBK phai thoa man cac yeu ellu sau :
- Giil 6n djnh ph,! lai dien eho trllOe ;
- Giil vilng TBK vM hanb 0 eM do khOng lal khi tlln s6 quay dinh mile ;
- Bao dam TBK lam vi¢c an toan 0 eM dO khoi dong va ngllng Ihi€1 bi Irong cae Ilnh tr~ng s1/ e6 ;
- Bao dam TBK lam viee em (khOng rung) 0 eh€ dO van hilnh TBK kbi Ihay d6i ph,! lai dOng deu ;
• DuyInIlln 56 quay eUa rOto kh6nggaymsll tfc'40agcia . 11/ dOng eMng W\lt 16c khi sa lhii ph, tii ttc tllai klla. IIIIIt xu6ng bhng khong (d6i wi TBK\'tD.MnI140c "pIII tW dfa
ph\! lAit'l diing da JIM 1IIliy) ;
• Giir nhi~ ~ khi1rUtX: toabln b mile yeu~. tMa. c:IIo
phepling cao dl!n mile gi6i h4n Jam bAo~slI c6tk4qal;
• Bao dam eM dO \'tn hilllhcUa 1114y nc5~ khi. kh6ngc6 hO eMng IQI khi;
• COdO'khOng nh4y clla helMng &Wi IIfD II1lietdOtIUtMna
VII,>I qui 10"C.
• CO mile dO thODg iflng ct~ di~uehinh flD a6 qilay ,cUa
true may pMt, dieD bllDg'4,5 .: 0,5% so wi djnh mile. Mite,dO khOngnMy kIlOng VII,>I qui O,3%.Mite dO kh6Dg iflDllh ClJC
bO khOng nM hoD2,5% ... kh6Dg I6D boD 6%.
Chophc5p TBK111m vi¢<:c:6 dO'. eheDh. teth tlD.a6l1Cl vdi
binh Ihllllng n€udll,>e 511 thoalhl!4D cUa J1McII€ ~o.
Dmu 406 e Xung nhi¢t dOsil d,DgtrODg he th6Dgcb~u
ebinh vl1 bao v¢ pMi lay lilbO pMtxuDg q1!liDliIIh DM (l:tP
nhi¢1 ngAn hay elicthi€t hi dOb/llDg We\l6th€ l!i¢u Chillh
dOngdll\lC troag tn/llng hl)p dDthi€t); I'p~t If,i' li€tdi¢D ~e In/Dgeua IUy€D vl1 baodlimxaedjnhdll<>C nhi¢t.~dfi dieD.
~u407 :CAehO bAov¢eMngtaDgllhi¢td'o khiquA mite
eho phtp sau m6i Illng eMy dDphai dlt<>c hi¢u emnh ~.tfc dOng 0 nhi~t dO do JIM ch€ ~o quy cfinh.
Di~u 408 : Clic bO III dOng eh6Dg IllDg t6c phai cbI<>c cb~. emnh dI! tae dOngb flD 56 quay ella rOlO taDg qu.t cfinh mite
Di~u 409 : Trong thili gian van hanh TBK phai thuc hien nhimg bien phap <13m bao giarn tMp dO bui ban khOng khi vao dau hut TBK (trbng eo tren cac di¢ll tich con trang, trat nhua duong OtO, bO loc khi, tuoi nuoc ...) va Ioai trit kM nang de cac chat tMi cua nhamay va cac ehat thai ben ngoai 19t vao bubng
hut gio cua TBK.
Di~u410:H¢th6ngJgekhong-khiphai dam bao ham luong bui trong khOng khi a cua vac may nen khi khong vuot qua
9,3mglm3 va kich thpoe hat b~ikhOng vuot quaiS I'm. PMi
thuong xuyen kiern tra tinh trang cac bO 19C khOng khi irong khi van hanh, KhOngeh,9 ph~p vang dal! hoaccac vat .li¢u khac ra khoi bO loc roi vaotuyen hut cua TBK.·ft nM\mlli thang 2 Ian l'MikieD1.traB~I(lC khOngkhi va law sach bOI(lC va ang gop khong de"b~i,inuOi!?am.VilO (neu TBKlam viec ifeM dO day thi kidrn tra a Ian n~itng gan nhat). •
Dieu 411 : j{¢ th6ng 1(lC khOng khi phai trangbjvan nMnh tac dOng hai phia dam bao rna h! dOng khi dO giang ap tren bO !ge tang qua dinh mite! hay xuat hi¢nap suat du lrong buong cua bO 19C.
Dieu412 : Van Stop va van dieuehinh nhien li¢u 'cua TBK phili .kin. ](hOng.cho phep dl nhien li¢u do ri qua eat'vaiL TruCe mlli Ian khoi dOng pMi Ide~ tra cacvan va khi TBK lam vi¢c
lien tyc thi pMi kUm tra 1 Ian hanh tdnh eua cae van hilng ngay...~tnh,at m6i IMng mOt Ian pMi Idem tra dO kincua cac van; khi TBK lam vi¢clien )\lcduQe hon mOklMng thivi¢c
Idem Ira Ihl!c hi¢n 0 Ian ngitng ke ho~eh gan I1Mt.
,Dieu 4l3.; Qic,vO)iingJua ':acvan lAp Irendl10ng 6ng.dan, dau InHlc va saub~lam mat d~u,t~¢1) ~auhutYil ~auday..cua· bom dau dl! pMng vii Sl! cO Iren duilng xa dau sl!cO lit be ehua
128
dau cua TBK, tnroc vii sau cacbo loc c6tM thao dili d.u"e trong so do chen true cua may phat dien phai kep chi a vi tri viln hanh cua cac van.
Di~u 414 ; Khi may phat cua TBK diuyln sang chI! dO dOng CO phai duoc I~p litc cM ngay, dl thuc hien dillu dc$, il m~ypM! phai dill bao ve ch6ng cong suat nguoc,
Dleu 415 ; Khoi dong vii tien hanh hoad1lng bO TBK til bllt ky trang thai nhiet nao deu phai Ihl!c hien t\l dong,
Di~u 416 ; Khoi dOng TBK phai thuc hien duoi sJ!. chi dao cua Iruang kip con sau dai tu va lilu tu duoi sl! chi dao cua quan d6e phan xuong hoac pho quan d6c.
Dieu 417 ; Truce khi khbi dOng TBK sau slta chila hay ngilng dl! phong qua 3 ngay dem phai tien Mnh kiem Ira tinh hoan hao vii tinh san sang dua vao lam viec cua cac thiet bi bao v¢ cong ngh¢ va tl! dOng, cae bO lien dOng eua cae thiet bi ph\l, h¢ th6ng dau nhon ,cae born dau nhon dl! phong vii sl!cO, cac dong
h(; kiem Ira do luang va cae phltOng ti¢n thOng tin lien I~c . Cic hu hOng dlt"e pMI hi¢n pMi du"c khAc ph\lo.
Dieu 418 : aim khai dOng TBK trong cac Iruilng Mp sau : 1-Hu hOng hoile TBK bi ngitng do blit cit lo~i cAt bao v¢
nao;
2-Khi cO cac khiem khuyel cua h¢ dillu ehinhcO tM dua d~n
lang cao nhi¢l dO khi qua mite cho phep hay I~ng cao 160 dO tua bin.
3-HIl hOng mOt trong cac born dllu nhiln ho~c.M lh6ng lien dOng eua cae born dO.
4-CMt lu"ng nhien lieu hay dau 'nhiln khOng dung lieuchu~n
eung nhu khi nhi¢t dO vii ap sull! nhien li¢u (dllu nhiln) tMp hon hay vlt,,1 qua giOi h~n coo lfllOc.
5-C4c chi tieu til!m tra nm¢t va co C1la TBK VltQt ra thoi gidi "IIcoo plK!p.
Mu 41' : Tht6c: khi d6t nhien li¢u trong bullng d6t , cac
t~n khiC1laTBKplW dllQC thOng gi6 khiquay rOto bang dOng COthai dOng .Thili gian thOng giO pMi DC dinh trong quy triM C1lai l l my.
Sail khithOng thili dOng dllQC TBK, ~meMt lai nmen lieu
m.thOng thOng gio SObO toan h¢ tMng.
~420 : Vi¢C thili dOng pMi cMm dirt ngay bangtacdOng C1la th~t bi 1180 v¢ hay do nMn vien v*n hanh thao tac trong