My bin du

Du bin hnh l mt cht lng du m c kh nng t chy v c bt li trong vic bo v mi trng. Tuy nhin, bi v du my bin i c c trng ca hiu sut tuyt vi v gi thp, hu ht my bin p vn s dng du bin th nh cht cch ly v phng tin lm mt.

Vo cui th k XIX, nhng ngi bin th bt u s dng du my bin i nh vt cht cch ly v nhit mt lnh, v nhng my bin i b m du xut hin. Ngoi vic tit kim nhin liu v gi thp, du bin i c s dng rng ri nh nhng c im sau y.

1) Khi c dng vi cc cht liu bng si, n c hiu qu cch ly tt, c th gim khong cch cch in v chi ph.

2) Du bin hnh c st thp v kh nng truyn nhit tt.

Ba) N c th bo v li st v ng cong khi tc ng ca hi m trong khng kh.

4) Bo v giy cch ly v vt phm cch ly khi oxy, gim lo ha cc vt liu cch ly v ko di thi gian hot ng ca my bin th.

Ngoi tr mt s my bin p nh v trung bnh cho nhng mc ch c bit, nhng my bin p ln v trung bnh vn s dng du b ch bin nh mt cht lm mt v cch ly.

i vi nhng my bin c tm du chuyn ha, lp A khng c nhit cch ly l tng A, v nhit hot ng di hn l 105*840511;.