保定博泰泵業(yè)制造有限公司
主營產(chǎn)品: 離心泵
耐磨泡沫液循環(huán)泵配件-博泰泵業(yè)-現(xiàn)貨高揚(yáng)程泡沫液循環(huán)泵選型
價(jià)格
訂貨量(件)
¥5266.00
≥1
店鋪主推品 熱銷潛力款
萦营萩萫萫萤萪萭萫萧萧
決定后蓋板形狀的半徑,考慮所需流道尺寸和面積變化平滑來選取,通常Ru.s<Ru+b (式中, R-1為后蓋板輪席半徑; b, 為葉輪入口段流道寬度)。
軸面斷面繪制正確性準(zhǔn)則是蓋板之間流道過流面積從入口到出口的變化光滑,可以根據(jù)文獻(xiàn)[179,202]中所述的方法確定。AF泡沫泵
drawing of impeller shaft surface
When the values of B, D2 and D. are known, draw the impeller shaft surface section. Because the coefficient K of the impeller of the pump is very large (1.6-2.5) (for the pump of homogeneous liquid, when n, = 80-120, KUs = 0.6-0.8), the impeller structure can not be made to shrink to the outlet (for example, this can be generally done on the impeller of homogeneous liquid), and it is usually made into parallel wall form.
煙氣換熱器通常有蓄熱式和非蓄熱式兩種形式。蓄熱式煙氣換熱器是通過熱載體或載熱介質(zhì)將熱地氣的熱量傳遞給冷煙氣,主要有回轉(zhuǎn)式氣-氣換熱器(GGH)、水一氣換熱器(MGGH)和蒸發(fā)管式換熱器(簡稱熱管)非蓄熱式煙氣換熱器是通過蒸汽或燃燒等加熱冷煙氣,這種加熱方式初投資較小,但功耗高、運(yùn)行費(fèi)用較大,這里主要對蓄熱式的換熱器進(jìn)行介紹。AF泡沫泵