Ki te whakarerekētia te putanga o te papu mai i te 6" ki te 4" e te hononga, ka pāngia te papu e tēnei? I roto i ngā kaupapa tūturu, he maha ngā wā ka rangona ngā tono rite. Mā te whakaiti i te putanga wai o te papu ka paku piki ake te pēhanga wai, engari nā te pikinga o te tere rere o te papu, ka piki ake te ngaronga waipēhi.
Me kōrero tātou mō te pānga o te whakaiti i te putanga papu ki te papu.
Te pānga o te whakaiti i te putanga papu
1. Ngā panonitanga o ngā tawhā waipēhi: te pikinga o te pēhanga, te hekenga o te rere, me te mōrearea o te wiri
Pānga whakawhāiti:Ko te whakaiti i te putanga wai o te papu he rite tonu ki te kati i te takirere putanga o te papu. Ko te whakaiti i te diameter putanga he rite tonu ki te whakanui ake i te tauwehenga ātete ā-rohe. Mā te whai i te tātai Darcy-Weisbach, ka peke te pēhanga pūnaha i te kore-rārangi (e whakaatu ana ngā raraunga whakamātautau ka taea e te whakaiti 10% o te diameter te arahi ki te pikinga 15-20% o te pēhanga), ko te tere rere e whakaatu ana i te ture whakaiti Q∝A·v.
Ahakoa ka heke te mana o te toki mā te 8-12% i te hekenga o te rere, ka piki ake pea te kaha o te wiri i puta mai i te pēhanga o te pehanga mā te 20-30%, inā koa tata ki te tere matua, he mea ngāwari ki te whakaoho i te haruru hanganga.
2. Te whanaungatanga i waenga i te upoko me te pēhanga: Kāore te upoko ariā i rerekē, ka huri te pēhanga tūturu i runga i te hihiri
Kāore i rerekē te pane o te ariā:Ko te pane ariā o te impeller ka whakatauhia e ngā tawhā āhuahanga, ā, kāore he hononga tika ki te diameter o te putanga wai.
Ka whakanuia e te pānga whakawhāiti te pēhanga putanga o te papu: Ina neke te pūwāhi mahi pūnaha i te pihi HQ, ā, ka rerekē te taiao o waho (pēnei i te piki me te heke o te ātete o te whatunga paipa), ka piki ake te kaha o te piki me te heke o te pēhanga mā te 30-50%, ā, me matapae hihiri mā te pihi āhuatanga rere-pēhanga.
3. Te pono o ngā taputapu:ngā whakaaro mō te pānga ki te ora me te aroturukitanga
Mena kāore i te tino pai ngā āhuatanga mahi, ka pāngia te roanga o te mahi a te papu. Ka taea te aroturuki i te wiri, ā, ka taea te whakahaere i te arotautanga o te tātaritanga aratau mēnā e tika ana.
4. Tapeke haumaru:ngā whakaritenga whakarerekētanga me te kawenga motuka
Ngā whakaritenga whakahou:Kaua te whānui o te putanga wai e iti iho i te 75% o te uara hoahoa taketake. Mēnā ka nui rawa te whakawhāiti i te hau, ka nui ake te tauwehenga ratonga motuka (SF) i te paepae haumaru.
Ki te hipa te paepae haumaru, ka pēhia te papu wai e te rere kino o te wai, ka piki ake te kawenga o te motuka, ā, ka taumaha rawa te motuka. Mēnā e tika ana, me matapae te kaha o te awhiowhio mā te whakatauira CFD, ā, me whakatikatika te tauwehenga rere mā te mita rere ultrasonic kia mōhio ai kei raro iho i te 85% o te uara whakatauranga te tere kawenga o te motuka.
5. Te whakahaere rere:te whanaungatanga tika i waenga i te diameter me te rere
He pānga tika tēnei ki te rere o te papu wai, arā, ko te nui ake o te putanga wai o te papu wai, ko te nui ake hoki o te rere o te papu wai, ā, ko te ritenga kē. (He hononga pai te tere rere ki te horahanga whakawhiti o te putanga wai. E whakaatu ana ngā whakamātautau ko te whakahekenga 10% o te diameter e rite ana ki te whakahekenga 17-19% o te rere)
Wā tuku: Maehe-24-2025