Hdi nghi khoa hoc ki thuat md qudc ti 2010 Cong nghiep md tien tien vi su phat trien bin viing N G H I E N C U T J X A C D I N H N H I T N G V I T R I D I E U T I E T T O I U U C H O THIET BI THONG GI[.]
Hdi Cong nghi khoa nghiep md hoc ki thuat tien tien md qudc vi su phat ti trien bin 2010 viing N G H I E N CUTJ X A C D I N H N H I T N G V I T R I D I E U T I E T T O I U U CHO THIET BI THONG GIO Dl/A TREN PHUONG PHAP DtTCTNG DAN VA DO NHAY GS, TS Jinzhang JIA, Yu Yang, Ran LIU T r u o n g dai hoc K y thuat va K h o a hoc A n toan D a i hoc C o n g nghe L i e u N i n h , Trung Quoc Tdm tdt: Hien tqi, phuong phap dudng dan duoc sic dung nhu mot phuong phap dieu tiet toi uu he thong md phong thdng gid md (MVSS) Ducmg gid vao duoc chia lam mice dieu tiet, xudt hien hon mot duong gid dieu tiet mot duong dan, thi can su lua chon tdi uu Be gidi quy it van de tren, bdi bao nay, cdc tdc gid gioi thieu phuong phap dudng dan vd ly thuyet nhay, tic xac dinh cdc vi tri dieu tiet tdi uu he thdng thdng gid md Phuong phap duong dan cho su dieu tiet toi uu 1.1 Nhirng phuong phap dieu tiet tdi uu N h u n g p h u o n g phap dieu tiet t o i u u co the q u i ve l o a i : (1) Dieu chinh tqi cdc ong nhanh vdi luong cd dinh B a n g p h u o n g phap nay, n g u d i ta co the co d i n h d u o c y i t r i va l u o n g dieu chinh, vi the, ve can ban, no k h o n g phai la m o t p h u o n g phap d i e u tiet t o i u u (2) Phuong phap lap trinh tuyen tinh M u c d i c h c h i n h cua p h u o n g phap la de g i a m t h i e u t o i da m u c tieu thu nang l u o n g cua quat v d i d i e u k i e n r a n g buoc la p h u o n g t r i n h can bang luc can P h u o n g phap thuc sir da giai quyet d u o c van de dat B a n g viec sir d u n g p h u o n g phap nay, sir dieu tiet hieu qua va l u o n g d i e u tiet deu co the d u o c xac d i n h , c h u n g c u n g t h u c sir rat kha thi thuc te T u y n h i e n d i e m thieu sot la d cho he thong dieu tiet t o i u u k h o n g the xac dinh mot lan ma phai d u o c c h o n lira tir rat n h i e u he thong dieu tiet (3) Phuong phap lap trinh phi tuyen L u o n g k h i , v i t r i d i e u tiet va l u o n g dieu tiet cd the d u o c xac d i n h m o t lan bang each ket hop t i n h toan l u o n g k h o n g k h i va cac yeu to dieu tiet D e n i d r o n g q u i m d cua mang l u d i thong gio, co rat n h i e u van de l y thuyet va thirc t i e n can phai giai quyet [ ] 1.2 Phuong phap dudng dan N h i n nhan n h u n g van de tren day, n g u o i ta da ctua p h u o n g phap d u d n g dan de toi u u hoa dieu tiet cho m a n g l u d i dua tren viec han che t o i t h i e u sir tieu t h u nang luong ,cac so k h o i duoc the h i e n h i n h B a n cheh ciia p h u o n g phap la xac d i n h tong so d u d n g dan bang p h u o n g phap t i m k i e m theo chieu sau dua vao nut va d u o n g dan v o i luc can l d n t h i i hai d u o c d i e u c h i n h v d i tieu chuan la d u o n g dan co lire c a n j d n nhat Sau d u d n g dan co lire can l d n t h u hai d u o c dieu chinh, tat ca nhirng d u d n g dan chua duoc dieu chinh se duoc sap xep l a i , tiep theo d u o n g dan v d i luc can l d n nhat se d u o c dieu tiet Qua t r i n h dieu c h i n h se k h o n g ket thuc cho den k h i toan bo tat ca n h u n g d u o n g dan dugc dieu tiet D i e u tao m o t p h u o n g phap h i e u qua h o n tren l y thuyet va la phuong tien de lira chgn cac quat c h i n h tren mat dat m o t each k h o a hgc, h g p l y , k i n h te, an toan, on dinh va co h i e u qua, de t o i u u hoa v i t r i va dieu k i e n l a m viec ciia nhirng t r a m quat dudi dat ddng t h d i cung t d i u u hda n h u n g v i t r i d i e u tiet, l u g n g dieu tiet c u n g n h u bd cue tdng the ciia cac 16 dgc via 404 noi Cdng ngni nghiep Khoa hoc md tien kT thuat tiin md qudc vi su phat te - trien ben 2010 vung Trong phirong phap nay, nhung dong duoc chia muc dieu tiet, cu the la dieu t i l t u u tien, dieu t i l t co t h i chap nhan, dieu t i e t , k h o n g thuan l o i v a d i e u tiet k h o n g the thuc hien K h i co h o n m o t h u o n g k h i duoc dieu tiet t r o n g m o t d u o n g dan, n h u duoc the hien mo h i n h 2, viec l a m t h l nao de lira chon nhirng h u o n g d i e u tiet t o i u u va l a m the nao d l can thiep vao sir d i e u tiet cac h u o n g k h i thong qua viec t u o n g tac c o n n g u o i - may moc la nhung t r o n g t a m n g h i e n c u u cua bai bao D o o n d i n h c u a he t h o n g t h o n g gio Bat dau Nhap vao du lieu tho cua mang luoi thong gio de tao mang luoi G X6a cac duong dan vca luong co djnh de hinh mang luoi G'=G-E' Thuc hien viec tach tu nhien vao mang ludi I Them vao cac dudng dan v6i lugng co dinh E' de khoi phuc lai mang luoi goc G Tim tong so duong dan P=(P P h P, P ) W S5p xep cac duong dan dua theo Ion cua luc,can,xac djnh duong dan c6 Juc can Ion P„ va gia tri ciia luc can Ion nhat H W\iy duong dan c6 lire can Ion nhat, lay P'=P-P m max m Xac djnh duong dan v6i luc can Ion nhat H' max so cac duong dan lai P', ti'nh toan luong dieu chinh AH=H -H' max max Thyc hi?n dieu chinh cho duong din P' X6a cac duong dan da duoc dieu chinh, ti'nh toan cac lire can cua duong dan c6n lai va sap xep chung mot lan nua cac duong dan deu da duoc dieu chinh D Ket thuc Hinh So- khoi nguyen tdc hoat ddng cua phu ong phap dudng 405 ddn Hoi Cong nghi nghiep khoa hoc md tien ki thuat tien mo qudc vi su phat ti - 2010 triin ben rung Sir o n d i n h ciia he t h o n g t h o n g gio co the duoc phan t i c h m o t each d i n h l u o n g bang ly thuyet nhay D o nhay day bao g o m nhay cua nhanh ap lire t h o n g k h i va nhay ciia he thong r = i w i ' as H s M V i t r warn IASS * ã ' #Ơ? t < ô Q: S i"l * • * i S N J Ji*i=2i I JtSS*S) Ơli 93**ô x: >-.ôã X < i / / / ; / / Phuong phap dudng dan cho su dieu chinh toi uu mo hinh mo pliong hi thong thong gio tqi mo (MY 'SSj M o i mang l u o i t h o n g gio deu la m o t he t h o n g co to chuc v i the su thay doi lire can khong k h i m o i nhanh rj deu co the dan den sir thay d o i l u o n g k h o n g k h i ciia chinh ban than no va n h u n g nhanh co l i e n quan, t h a m c h i la tat ca each nhanh t r o n g mang l u o i K h i bien t h i e n ciia luc can k h i r/j cua nhanh j la A r „ bien t h i e n ciia l u o n g k h i q, ciia nhanh i se la ± Iq K h i Ar - > G o i dy la nhay cua l u o n g k h i qj ciia nhanh i can x u n g v o i bien t h i e n ciia luc can k h o n g k h i i ciia i m a n h j } Thuat toan duoc lap l a i tai l i e u [2 ] , cac thuoc t i n h cua nhay cung se dugc phan t i c h m o t each ro rang Phuong phap xac dinh nhung vi tri dieu chinh toi uu cho thiet bi thong gio d u a t r e n p h u o n g p h a p d u o n g d a n v a n h a y D u a vao p h u o n g phap d u o n g dan de thirc hien d i e u tiet dat h i e u qua t o i u u va de xac dinh nhanh co the dieu tiet t o i i r u cac nhanh co the thirc h i e n , viec o n d i n h he thong dugc phan t i c h bang each sir dung l y thuyet nhay 406 Hoi nghi Cong 3.1 Gid dinh khoa nghiep co hoc kT thuat md tien tien md quoc vi su phat te - trien ben 2010 viing ban Goi cac nhanh d u g c dieu tiet la e M u c tieu cua viec dieu tiet la tang l u g n g k h i q k k cua ei< q B e sir dung rong rai qua t r i n h dieu tiet bang viec gia tang lire can, n g u o i ta e k lira chgn cac nhanh co the thirc hien dugc ej tir cac nhanh thoa m a n d i l u k i e n d j > Viec k tang l u o n g k h i q ciia e tir q q d dugc thirc h i e n bang viec tang lire can cua ej k 3.2 Qua trinh k k dieu k chinh Thiet lap trang thai ban dau Xac d i n h thiet b i dieu tiet (sir dieu tiet u u tien, s u d i l u t i l t co t h i thuc hien dugc, sir dieu tiet khong thuan l g i v a sir dieu tiet k h o n g co kha nang thirc h i e n ) cua m d i nhanh M a n g l u o i g i a i phap Phuong phap Scot-Hensley t h u o n g dirge t h o n g qua d l thuc h i e n cac g i a i phap d u o i dang mang l u o i Phan p h o i l u g n g k h i theo yeu cau Phuong phap d u o n g dan dugc sir dung d l thuc h i e n viec phan p h d i l u g n g k h i theo yeu cau Xac d i n h d u o n g dan dieu tiet theo dong N g u o i ta t i m d u o n g dan dieu tiet co t h i thirc h i e n d u g c bang viec sir dung m o hinh mo phong he t h d n g thdng g i d tai m d ( M V S S 3.0), k i hieu la Pj K i hieu d u d n g dan dugc dieu tiet cd the thirc hien dugc la E ' Xac d i n h nhanh e, cd anh h u d n g d i l u t i l t ro rang nhat Nhanh ej v d i gia t r i l d n nhat d j dugc c o i la nhanh v d i cd anh h u d n g d i l u t i l t r d k rang nhat, n g u d i ta tang lire can d i n gia t r i ej Tang lire can Khi tang lure can din gia tri e gia tri thang du la = r /£, dat £=20, dilu js y dong nghTa vdi viec gia tri thang du cua lire can khong cua nhanh j bang 1/20 cua lire can khong k h i ban dau t r o n g m o i qua t r i n h gia tang lire can Xac d i n h n h i r n g v u n g k h o n g hoat ddng t r o n g qua t r i n h d i l u t i l t bang viec gia tang lire can N g u o i ta theo d d i neu anh h u d n g ddi v d i e bat dau k h o n g hoat ddng sau m o i qua k trinh gia tang lire can v d i e js cu the la n i u sir d i l u t i l t gia tang luc can ciia lire can k h o n g r, den l u g n g k h i q v u g t qua g i d i han cho phep N i u sir d i l u t i l t v a n k h o n g n a m k khu vuc k h o n g hoat d d n g , t i l p tuc qua t r i n h d i l u t i l t , hoac quay lai b u d c < > 407 Hdi Cong nghi khoa nghiep mo hoc tien ki thuat tien md qudc v i su phat ti 2010 triin ben vung Tien hanh danh gia neu qua trinh dieu tiet duong dan hien thai ket thuc Qua t r i n h d i e u tiet d u o n g dan hien t h a i ket thuc cung t u o n g ducmg v a i viec lugng k h i q c i i a e d u g c de cap t o i a tren dat t a i q j N e u q nho h a n q j tiep tuc quay lai buoc k k kt k k de thuc hien t h e m lire can t h e m m o t lan nua hoac tiep tuc b u o c < > < > T i e n hanh danh gia neu tat ca cac qua t r i n h dieu tiet k h i co the thuc hien dugc da dugc tien hanh m o t lan D a n h gia x e m gia t r i i = S hay k h o n g dieu cung dong nghia v a i viec duong dan dugc dieu tiet h i e n t h a i da la d u o n g dan cuoi cung hay chua N e u i = S tiep tuc den buoc de dieu tiet d u o n g dan tiep theo N e u i = S , dieu d o n g nghia v o i viec duong dan dugc dieu tiet hien t h a i la d u o n g dan cuoi ciing den buoc < 1 > < > D i e u tiet d u o n g dan tiep theo Tiep tuc tien hanh qua t r i n h dieu tiet tai ducmg dan tiep theo lay i = i + l K e t thuc K e t l u a n N h u n g van de p h u o n g phap d u o n g dan de t o i u u hoa qua t r i n h dieu tiet, cu the la l a m the nao de xac d i n h v i t r i dieu tiet t o i u u , deu da dugc de cap a tren Phuong phap d u o n g dan de t o i u u qua t r i n h dieu tiet va nhay dugc ket hgp mot each kheo leo dat m o t p h u o n g phap m o i de xac d i n h nhirng v i t r i dieu tiet t o i uu, do thuc hien t o i u u h o n nua qua t r i n h dieu tiet ciia thiet b j t h o n g gio tai cac m o Tdi lieu tham khdo [1] S U Qingzheng L I U Jian Mine ventilation simulation theory and practice [M] B e i j i n g : Coal Industry Press 2006: 116-1 18 [2] L I U Jian J I A Jinzhang Z H E N G Dan Fluid network theory [ M ] B e i j i n g : Coal Industry- Press 2002:162-168 [3] J I A Jinzhang Study of ventilation system reliability during mine fire [ D ] , Fuxin: L i a o n i n g Technical U n i v e r s i t y , 2004 [4] L I U Ran Study path method and sensibility of optimal theory regulating methods for ventilation sy stem based on [ D ] F u x i n : L i a o n i n g Technical U n i v e r s i t y , 2008 408 ... tiet t r o n g m o t d u o n g dan, n h u duoc the hien mo h i n h 2, viec l a m t h l nao de lira chon nhirng h u o n g d i e u tiet t o i u u va l a m the nao d l can thiep vao sir d i e u tiet... max so cac duong dan lai P'', ti''nh toan luong dieu chinh AH=H -H'' max max Thyc hi?n dieu chinh cho duong din P'' X6a cac duong dan da duoc dieu chinh, ti''nh toan cac lire can cua duong dan c6n... i"l * • * i S N J Ji*i=2i I JtSS*S) Ơli 93**ô x: >-.ôã X < i / / / ; / / Phuong phap dudng dan cho su dieu chinh toi uu mo hinh mo pliong hi thong thong gio tqi mo (MY ''SSj M o i mang l u o i