CU TO V NGUYN L HOT NG CA MY BM NC

Trc khi s dng bt k sn phm no, chng ta thng tm hiu cu to v nguyn l hot ng ca sn phm , c bit l cc sn phm c in t. Chnh v vy hm nay mnh chia s vi cc bn mt vi thng tin v cu to v nguyn l hot ng ca my bm nc

1. Cu to:

Bnh cng tc: kt cu c 3 dng chnh l cnh m hon ton, m mt phn v cnh kn. Bnh cng tc c lp trn trc ca bm cng vi cc chi tit khc c nh vi trc to nn phn quay ca bm gi l Rto. Bnh cng tc c c bng gang hoc thp theo phng php c chnh xc. Cc b mt cnh dn v a bnh cng tc yu cu c nhn tng i cao (tam gic 3 n 6) gim tn tht. Bnh cng tc v Rto camy bm ncu phi c cn bng tnh v cn bng ng khi lm vic bnh cng tc khng c xt vo thn bm.Trc bm: thng c ch to bng thp hp kim v c lp vi bnh cng tc thng qua mi ghp then.B phn dn hng vo. Hai b phn ny thuc thn my bm thngB phn dn hng ra (bung xon c) c bng gang c hnh dng tng i phc tp.

2. Nguyn l hot ng ca bm ly tm:

Mt vt khi quay quanh trc phi chu mt lc c hng ko vt ra xa trc quay v c phng lc i qua tm quay. l lc ly tm.

Ht nc khi nm trn mt a trn phng ang quay s chu tc dng ca lc ly tm v dch chuyn dn t tm quay ra pha ngoi.

Bm ly tm l loi bm theo nguyn l lc ly tm. Nc c dn vo tm quay ca cnh bm. Nh lc ly tm, nc b y vng ra mp cnh bm. Nng lng bn ngoi thng qua cnh bm c truyn cho dng nc, mt phn to nn p nng, mt phn to thnh ng nng khin nc chuyn ng.

Trc khi my bm lm vic, cn phi lm cho thn bm (trong c bnh cng tc) v ng ht c in y cht lng, thng gi l mi bm.Khi my bm lm vic, bnh cng tc quay, cc phn t cht lng trong bnh cng tc di nh hng ca lc ly tm b vng t trong ra ngoi, chuyn ng theo cc mng dn v i vo ng y vi p sut cao hn, l qu trnh y ca bm. ng thi, li vo ca bnh cng tc to nn vng c chn khng v di tc dng ca p sut trong b cha ln hn p sut li vo ca my bm, cht lng b ht lin tc b y vo bm theo ng ht, l qu trnh ht ca bm.Qu trnh ht v y ca bm l qu trnh lin tc, to nn dng chy lin tc qua bm.B phn dn hng ra (thng c dng xon c nn cn gi l bung xon c) dn cht lng t bnh cng tc ra ng y c iu ha, n nh v cn c tc dng bin mt phn ng nng ca dng chy thnh p nng cn thit.Nhn dng:my bm ncly tm c ng ht a nc vo tm ca cnh bm v ng y nm trn mp cnh.

3.Cc c im:

Khi ht nc b lc ly tm y t tm cnh bm ra pha mp bm, s xut hin khong trng ti tm cnh bm. p sut ti khong trng ny c th nh hn p sut kh tri v thm ch c lc t gn ti chn khng tuyt i. Bm ly tm l thuyt c th ht nc su ti a 10 m so vi tm cnh bm. Thc t bm ly tm ht c nc su t 3 n 8 m, ty loi bm.

Lc ly tm t l thun vi trng lng ca vt. V khng kh nh hn 1000 ln so vi nc nn nu kh lt vo tm cnh bm, lc ly tm s tc dng nh hn 1000 ln v khng sc ko khi kh ra khi my bm, to chn khng cho lng cht lng k tip trn vo. Cnh bm vn quay m nc th khng bm c. y l hin tng lt kh vo ng ht my bm ly tm ang hot ng. Thc t thng gi l bm b e (air). V l do ny, ngi ta dng bm ly tm ch nhng ni c iu kin lp t c nh v ng ht ca bm ly tm lc no cng phi y nc.

Vi cu to, nguyn l hot ng v cc c im ca my bm nc nu trn hn cc bn cng hiu thm v my bm nc.

Vi cc thng tin trn hy vng s gip c cc bn hiu thm v my bm nc. Trong trng hp cc bn cn bit thm g v my bm nc, c th lin h vi chng ti c gii p mt cch tt nht.

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