A cikin shekarun 1930, an gina gininbawul ɗin malam buɗe idoan ƙirƙiro shi ne a Amurka, kuma a shekarun 1950, an gabatar da shi ga Japan. Duk da cewa ba a saba amfani da shi a Japan ba har zuwa shekarun 1960, bai shahara sosai a nan ba sai a shekarun 1970.
Muhimman halayen bawul ɗin malam buɗe ido sune nauyinsa mai sauƙi, ƙaramin sawun shigarwa, da ƙarancin ƙarfin aiki. Bawul ɗin malam buɗe ido yana da nauyin kusan 2T, yayin da bawul ɗin ƙofar yana da nauyin kusan 3.5T, ta amfani da DN1000 a matsayin misali. Bawul ɗin malam buɗe ido yana da ƙarfi na juriya da aminci kuma yana da sauƙin haɗawa da hanyoyin tuƙi daban-daban. Matsalar bawul ɗin malam buɗe ido da aka rufe da roba ita ce, idan aka yi amfani da shi ba daidai ba a matsayin bawul ɗin matsewa, cavitation zai faru, wanda ke sa kujerar roba ta bare ta lalace. Saboda haka, zaɓin da ya dace ya dogara ne akan buƙatun yanayin aiki. Yawan kwararar ruwa yana canzawa a layi ɗaya azaman aikin buɗe bawul ɗin malam buɗe ido.
Idan aka yi amfani da shi don daidaita kwararar ruwa, halayen kwararar ruwansa suna da alaƙa da juriyar kwararar bututun. Misali, saurin kwararar bawuloli zai bambanta sosai idan an sanya bututu biyu da diamita da siffa iri ɗaya, amma ma'aunin asarar bututu daban-daban. Ana iya samun cavitation a bayan farantin bawul yayin da bawul ɗin ke cikin matsayi mai nauyi na matsewa, wanda zai iya cutar da bawul ɗin. Sau da yawa ana amfani da shi a waje a digiri 15.
Thebawul ɗin malam buɗe idoyana samar da yanayi daban lokacin da yake tsakiyar buɗewarsa, lokacin da ƙarshen gaban farantin malam buɗe ido da jikin bawul ɗin suka kasance a tsakiya a kan shaft ɗin bawul. Ƙarshen gaban farantin malam buɗe ido ɗaya yana tafiya a hanya ɗaya.
Sakamakon haka, jikin bawul ɗin yana gefe ɗaya kumabawulFarantin ya haɗu don samar da buɗaɗɗen bututu mai kama da bututun ƙarfe, yayin da ɗayan gefen yayi kama da maƙulli. Gasket ɗin roba ya rabu. Ƙarfin aikin bawul ɗin malam buɗe ido ya bambanta dangane da yanayin buɗewa da rufewa na bawul ɗin. Saboda zurfin ruwan, ƙarfin da aka samar da bambancin tsakanin saman da ƙasan kan ruwa na shaft ɗin bawul ba za a iya watsi da shi ba ga bawul ɗin malam buɗe ido na kwance, musamman bawul ɗin diamita mai girma.
Bugu da ƙari, kwararar bias za ta fito kuma karfin juyi zai tashi lokacin da aka saka gwiwar hannu a gefen shiga na bawul ɗin. Saboda tasirin karfin juyi na ruwa lokacin da bawul ɗin yake tsakiyar buɗewa, dole ne tsarin aiki ya kasance yana kulle kansa.
Lokacin Saƙo: Nuwamba-17-2022