5. Dong canh huong mloc khi ngan keo dong slf cd hoat
dong;
6. Dongva mil cac van tua bin hoac cac van tac dong nhanh tren cac tuycn dan nuoc den tua bin;
7. D6ng van xa khong Iili cita tua bin nuoc;
Dieu 213: D¢ rung gia chir IMp cacmay pMI thuy Ilfc ki6u thing c6 6 huong, dO rung cac CO cau tua bin nuoc (6 huong tua bin, nap tua bin, cac tru do) va do rung 6 do t6 may pMI thuy
hie ki~u narn ngang il tan s6 quay dinh mite khong du<;lc vIl<;lt qua cac tri s6 sau day:
- S6 vong quay dinh mite v/ph:' 100 187,5 375 750
- Bien dO dao dong kep, mm 0,18 0,15 0,10 0,07
DO rung stato (lOi va IhAn) may pMt thuy llfe ki6u ditng 6 eM dO lam vitc 6n dinh khOng du<lC phep vIlOt qua:
- Thn s6 dao dong, HZ 20 30 40 50 80
- Bien dO dao dong kep, mm 0,08 0,06 0,045 0,035 0,02
75 I: I: li.... 1 1_i I I :1 I
Cac t6 may thuy luc c6 dO rung IOn hon tri s6 cho phep chi duoc ti6p 11,IC lam viec tarn thoi trong mot thili gian ngan khi duoc sl! dong ycua Cong ty Dien Iuc.
Dieu 214: Tril cac t6 may dang sua chua, tilt ca cac 16 may thuy luc da dilng phai chuan bj san sang khoi dong nhanh ch6ng. Cac tua bin phai luon luon chiu roan bo ap luc cua cor n 1I0c: cua nhan nuoc mo va b¢ huong nuoc il trang thai dong hoan toan. 0cac NMTD c6 duong 6ng ap luc, cua van nam true ti6p truce buong xoan can thiet phai d6ng, con dllilng 6ng thi chua day nuoc.
Dieu 215: Trong truong hop can tien hanh cac rung vice trong buong tua bin, nMt thiet phai xa h€l nuoc kh6i dUilng 6ng ap luc va d6ng kin cac cua van sua chtra sli c6 cua buong tua bin hay cia duong 6ng. D6i voi NMTD c6 nhieu t6 may chung mot 6ng ap luc, khi can tien hanh cac cong vice rrong buong tua bin nhat thi6t phai dong van sila chua sli c6 cua may d6 va ap d\mg cac bien phap de tranh vi¢C mil nham Ian.
Khi can thiet pMi tien Mnh nhilng cOng vi¢C tren ro to may pMt dien, nMt thiet pMi ch6t hoac chen b¢ hllong mtoc, klch rNo len phanh ham va ap dung m<;>i bien pMp can thiet de dam bao ky thuat an toan.
Dieu 216: DO ro ri hao hut trong heth6ng dau cua tua bin nlloc kieu canh quay kh6ng dllf,lc vllf,lt qua tieu chuAn cho phep do rung ty Dien llic xac dinh cho tilng nM mo.y thuy di¢n.
Dieu 217: Milc giam ap suilt trong binh dau lip ll!c cua MHY khi tilt ci cac van dong kin kMng dllf,lc Vl/f,lt qua 1-1, 5 kgfcm2 trong vOng 8 giil.
Dieu 218: Mili MHY pMi lam viec doc laP voi nhau. T6n . tMt kill trong binh pMi dllf,lc thl!ilng xuytn b6sung bang may
76
nen khi til dong hoac bang each n?p khi til he th6ng khi cao a
chung cua nha may. p
Cac born dau cua MHY can phai lam viec Juan phien nhau hoac theo mot chuong trinh djnh san.
Dieu 219: Ap suat trong dllilng 6ng ap lI!c khi sa tMi roan
b¢ phu tai kMng duoc vuot qua tri s6 thiet ke, Khi c6 van Jill
khOn~ tai, thi su lam viec tt,t dOng cua n6 can phai phil hop voi dac tinh ky thuat cua thiet bi va khong gay t6n tMt mroc,
Cac van pha chan khong il tua bin mroc phai dam bao mil khi xuar hien chan kMng dllOi nap tua bin va d6ng kin lai sau
khi da pha chan kMng. .
Dieu 220: D6i voi mili t6 may tMy luc, phai xac dinh ro
tr~ng qu~ trinh Van hanh cua nha mayeac tri s6 nhiet dO dinh
Illuc va.IO~ nhat c~o phep cua 6 hl!ong va (\ do. Khi nhi¢t dO tang qua 5 C so VOl dinh muc thi tin hieu phong ngila ph;\] tac dong, dang thili phai bang mQi bien pMp xac djnh nguyen nMn va xil IY.
. Khi nh!¢t d¢ Vllf,lt qua muc Ion nMt cho phCp thi bao v¢ nhl¢t dO tac dong hOac nhan vitn van banh thao tac dilng t6 may.
Dien 221: Chenh l¢Ch nhi¢t do giila cac sec mang cua 6 do khOng dllf,lc Vllf,lt qua 5° - 6°C d6i voi 6 do cilng kieu vit va 2 - 3°C d6i vo; cac (\ do kieu g6i thuy It,tc.
Dien 222: Khi sila chila (\ do t6 may tbUy It,tc, pMi tien hanh kiem tra st,t phan b6 tai tr<;>ng tren cac sec mango Do chenh lech tM tr<;>ng giila cac sec mang lo?i 6 dil cilng kieu vit kh6ng d~(,lc
Vl/(ll qua 10%; d6i voi cac (\ do kieu g6i thuy It,tc do chenh l¢ch vll chillu 030 giiia cac khoang dim hoi kMng dll<,lc Vl/<,lt qua 0,2
Dien 223 : Nuoc bOi tron 6 huong tua bin thoy lljc phai duoc cung cap tu hai ngubn doc lap. Khi mat mroc nguon chinh thi ngubn du phong phai t1I dong lam viec, Neu sau 2 - 3 giay khOngco nuoc titngubn du phong thibao ve phili tac dongdung may.
Dien 224 : Khi cac duong 6ng cap nuoc ky thuat bi d6ng
cau, phai ap dung cac bien phap de lam sach va bao v¢ chung,
Dleu 225 : Ap suat khong kill trong cac binh chua cue he th6ng kill nen phai duoc tlj dong duy tri trong gioi han cho truce.
Khi ap su~t giam toi mire gioi han thap nhat cho phep thi tin hieu bao phai tac dong,
Dien 226 : Dai tu cac tua bin thuy lire duoc tien hanh 4 - 6 nam mot Ian,
Cac 16 may dua vao Van hanh lan dliu tien thi ehu ky dai
tu, theo mile d¢ can thiet, c6the rut ngan,
Pblln tblltil
cAe THIET B! co NHI$T CUA
NHA MAy DI~N' vA uror DI$N
Chuang 15