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Ke kumu hana o ka pauma centrifugal

2024-09-14

pauma centrifugalHe mīkini wai ma?amau nona ka mana?o hana ma muli o ka ikaika centrifugal.

Eia keiapauma centrifugalNā ?ikepili kiko?ī a me ka wehewehe ?ana i ke ?ano o ka hana ?ana:

1.kahua kumu

1.1 Pum kino

  • Mea waiwai: Ka hao, ke kila kila, ke keleawe, etc.
  • ho?olālā: He mea ma?amau i ke ?ano o ka volute, ho?ohana ?ia e hō?ili?ili a alaka?i i ke kahe o ka wai.

1.2 Impeller

  • Mea waiwai: Ka hao, ke kila kila, ke keleawe, etc.
  • ho?olālā: ?O Impeller kapauma centrifugalHo?oka?awale ?ia nā ?āpana ko?iko?i i ?ekolu mau ?ano: pani, semi-open a me ka wehe.
  • Ka helu o nā lau: ?O ka ma?amau 5-12 papa, e pili ana i ka ho?olālā a me ka ho?ohana ?ana.

1.3 axis

  • Mea waiwai: Ke kila ikaika ki?eki?e a i ?ole ke kila kila.
  • Hana: Ho?ohui i ka motika a me ka impeller e ho?ouna i ka mana.

1.4 Mea ho?opa?a sila

  • ?ano ?ano: Sila mīkini a ho?opa?a sila.
  • Hana: Kāohi i ka leaka wai.

1.5 Piha

  • ?ano ?ano: Ke ku?i ka?a a i ?ole ke ku?i ?ana.
  • Hana: Kāko?o i ka lā?au a ho?emi i ka friction.

2.Ke kumu hana

2.1 Komo ka wai i loko o ke kino pamu

  • Ke ala komo wai: Komo ka wai i loko o ke kino pamu ma o ka paipu inlet, ma?amau ma o ka paipu ho?omoe a me ka pahu ho?omoe.
  • Anawaena komo wai: Ho?oholo ?ia ma muli o nā kiko?ī pump a me nā koi ho?olālā.

2.2 Ho?okē ka wai impeller

  • Ka māmā holo ho?olele: ?O ka ma?amau ma 1450 RPM a i ?ole 2900 RPM (ho?ololi i kēlā me kēia minuke), ma muli o ka ho?olālā ?ana a me ka noi.
  • ikaika centrifugal: Holoi ka impeller ma ke ki?eki?e ki?eki?e i alaka?i ?ia e ka ka?a, a wikiwiki ka wai e ka ikaika centrifugal.

2.3 Kahe ka wai i waho o ke kino pauma

  • Ho?olālā holo: Kahe ka wai i ho?okē?ai ?ia i waho ma ke kahawai kahe o ka impeller a komo i ka ?āpana volute o ke kino pahū.
  • Ho?olālā Volute: Kōkua ka ho?olālā o ka volute e ho?ololi i ka ikehu kinetic o ka wai i ikehu kaomi.

2.4 Ho?oku?u ?ia ka wai mai ke kino pauma

  • Ke ala puka wai: Ho?emi hou ?ia ka wai i loko o ka volute a ho?ololi ?ia i ikehu kaomi, a ho?oku?u ?ia mai ke kino pahū ma o ka paipu puka wai.
  • Anawaena puka puka: Ho?oholo ?ia ma muli o nā kiko?ī pump a me nā koi ho?olālā.

3.ka?ina ho?ololi ikehu

3.1 Ho?ololi i ka ikehu kinetic

  • ?O ka wikiwiki o ka impeller: Loa?a i ka wai ka ikehu kinetic ma lalo o ka hana a ka impeller, a pi?i a?e kona wikiwiki.
  • ?O ke ?ano o ka ikehu kinetic:( E_k = \frac{1}{2} mv^2 )
    • (E_k): ikehu kinetic
    • (m): Ka nui wai
    • (v): ka wikiwiki o ka wai

3.2 Ho?ololi i ka ikehu kaomi

  • Volute deceleration: Ho?emi ka wai i ka volute, a ho?ololi ?ia ka ikehu kinetic i ikehu kaomi.
  • ka hoohalike Bernoulli( P + \frac{1}{2} \rho v^2 + \rho gh = \text{constant} )
    • (P): Pa?i
    • ( \rho ): ka nui o ka wai
    • (v): ka wikiwiki o ka wai
    • (g): ka māmā ?umekaumaha
    • (h): kiekie

4.Nā palena hana

4.1 Kahe (Q)

  • wehewehe:pauma centrifugalKa nui o ka wai i hā?awi ?ia i kēlā me kēia manawa.
  • ?āpana: Meka kubiko no ka hola (m?/h) a i ?ole lita no kekona (L/s).
  • laulā: ?O 10-5000 m?/h ma?amau, ma muli o ke kumu ho?ohālike a me ka ho?ohana ?ana.

4.2 hāpai (H)

  • wehewehe:pauma centrifugalHiki ke ho?oki?eki?e i ke ki?eki?e o ka wai.
  • ?āpana: Mika (m).
  • laulā: ?O 10-150 mika ma?amau, ma muli o ke kumu ho?ohālike a me ka noi.

4.3 Mana (P)

  • wehewehe:pauma centrifugalMana ka?a.
  • ?āpana: kilowatt (kW).
  • Ka helu helu:( P = \frac{Q \times H}{102 \times \eta} )
    • (Q): kahe kahe (m?/h)
    • (H): Hāpai (m)
    • ( \eta ): pono o ka pamu (ma?a mau 0.6-0.8)

4.4 Pono (η)

  • wehewehe: ?O ka ho?ololi ?ana i ka ikehu o ka paila.
  • ?āpana: pākēneka(%).
  • laulā: ?O 60% -85% ma?amau, e pili ana i ka ho?olālā ?ana a me ka noi.

5.Nā manawa noi

5.1 Waiwai kalana

  • ho?ohana: Ke kahua pahū nui i ho?ohana ?ia i loko o nā ?ōnaehana wai o ke kūlanakauhale.
  • kahe: ?O 500-3000 m?/h.
  • Hapai: ?O 30-100 mau mika ma?amau.

5.2 Ho?olako wai ?oihana

  • ho?ohana: Ho?ohana ?ia i nā ?ōnaehana ho?ohehe?e wai i ka hana ?oihana.
  • kahe: Ma?a mau 200-2000 m?/h.
  • Hapai: ?O 20-80 mau mika ma?amau.

5.3 Ka wai mahiai

  • ho?ohana: Nā ?ōnaehana wai no nā wahi nui o ka ?āina mahi?ai.
  • kahe: ?O ka ma?amau 100-1500 m?/h.
  • Hapai: ?O 10-50 mika ma?amau.

5.4 Ke kūkulu ?ana i ka wai

  • ho?ohana: Ho?ohana ?ia i nā ?ōnaehana wai o nā hale ki?eki?e.
  • kahe: ?O 50-1000 m?/h.
  • Hapai: ?O 20-70 mau mika.

Loa?a i ka ?ike maika?i me kēia mau ?ikepili kiko?ī a me nā wehewehepauma centrifugal?O kāna kumu hana a me kāna hana a me ke kumu koho i nā noi like ?ole.

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