Na te mea he tino whanui te whakamahinga o te papu slurry, he rereke te rereke o te ahua o te wai i etahi wa, he rereke nga ahuatanga o te mahi, he rereke nga whakaritenga o te rere o te papu me te pehanga, kia tutuki ai nga whakaritenga o te mahi papu i nga waahi rereke. , He maha nga momo papu, te tikanga ka taea te whakarōpūtia i runga i te kaupapa mahi o te papu, a ko tana whakamahinga ka taea te hiki.E ai ki te kaupapa mahi o te papu ka taea te wehea ki te papu displacement pai, papu vane me etahi atu momo papu e toru nga waahanga.
Puma displacement pai whakawhirinaki i runga i huringa rōrahi hanga wā mahi momi rōrahi me te rere wai, ka piki te rōrahi mahi, te wai momi papu;ka heke, ka rere te wai o te papu.Ko nga ahuatanga kinematic e ai ki nga mahi o tenei momo Li ka wehewehea ki:
1. Mahinga mahi papu tauutuutu mo te nekehanga tauutuutu.Ko tenei momo papu he papu piston, piston, diaphragm chestnut me etahi atu.
2.Rotary papua nga umanga mahi mo te hurihanga tuaka pumau.Ko tenei momo papu he papu taputapu, he papu tira,ahumahi papu kirikirisliding vane pumps.
Ko te Vane chestnut e whakawhirinaki ana ki te hurihanga tere-tere o te impeller ki te whakatairanga i te rere o te wai, ki te whakatutuki i te kawe wai.E ai ki te wai i roto i te ahunga rere o te papu vane papu i roto i te tahuri wehea ki:
1. Pump wai rere radically i roto i te papu, te kaha turaki i te rere wai ka te kaha centrifugal hangaia e te hurihanga o te impeller.
(2) Rere axial wai axial i roto i te papu, te kaha turaki i te rere wai impeller axial pana axial hangaia ka te hurihanga.
3. Rere wai papu i roto i te papu rere ki te rakau papu ki tetahi koki, te kaha turaki i te rere wai ka te kaha centrifugal hangaia e te hurihanga o te impeller me te kaha turaki axial.
4 – Vortex papu wai i roto i te papu mo te rere vortex poutū, whakawhirinaki i runga i te impeller takahuri whakatairanga vortices hanga e te nekehanga o te momi wai me te tuku wai.
Ko etahi atu momo papua te nuinga kei te whakawhirinaki ki tetahi atu wai (wai, hau) kaha, kinetic energy hydrostatic wai tuku.No reira, ka kiia hoki ko te papu hydrodynamic, penei i te jet pumps, te wai chestnut, etc hama.
Ko nga tawhā taketake o nga ahuatanga matua o te papu kirikiri e whai ake nei:
1, te rere o Q
Ko te rere ko te nui o te papu kirikiri wai i roto i te wa tukunga o te waeine (te rahi, te kounga ranei).
Ko te rere o te rōrahi me Q ka mea, ko te waeine: m3/s, m3/h, l/s etc.
Ko te rere papatipu me te Qm i kii, ko te waeine: t/h, kg/s.
Ko te hononga i waenga i te rere papatipu me te rerenga rōrahi mo:
Qm= ρ Q
I roto i te tātai ρ — kiato wai (kg/m3, t/m3), wai pāmahana noa P =1000kg/m3.
2, te upoko o H
Ko te mahunga ko te taumaha o te papu kirikiri wai e pupuhi ana mai i te papu kirikiri (kouru flange kirikiri papu) ki te kirikiri i te putanga o te papu (pump out flange gravel) te pikinga o te kaha.Ko te pūngao whai hua he wai Newtonian i riro mai i te papu kirikiri.Ko te waeine ko N ?m/N=m, te teitei o te wīwī tīwae kirikiri papu papua wai, tikanga, e kiia ana ko M.
3, tere n
Ko te tere ko te tere o te wa e papu ana i te kirikiri, e tohuhia ana e te tohu n, he wae r/min.
4, NPSH NPSH
Ko te NPSH e kiia ana ko te upoko momi pai kupenga, ko te nuinga o nga tohu o te mahi cavitation.NPSH i roto i te whakamahi whare Δ H.
kg/m3）；
5, te kaha me te kahaTe turanga whiriwhiri o te papu slurry
Ko te mana papu kirikiri ko te nuinga o te wa e pa ana ki te mana whakauru, ko te hihiri taketake i puta mai he mana kirikiri papu papu, na reira ka kiia ko te mana o te rakau, he tohu na te P;
Ko te papu kirikiri mana whai hua ka kiia ko te mana whakaputa, e tohuhia ana e Pe.Ko te waeine kaha whai hua o te wa mai i te tuku papu kirikiri mai i te wai i roto i te papu kirikiri.
Na te mea ko te hiki te kaha o te kaha kirikiri papu putanga wae wai taumaha i riro mai i te papu kirikiri, na reira ko te upoko me te tere o te rere papatipu me te whakaterenga o te kaha, ko te waeine o te wa mai i te kirikiri papu whakaputa wai i whiwhi kaha whai hua — ara te pai o te papu kirikiri. mana:
Pe= ρ gQH (W) = gamma QH (W) tātai ρ kiato - kirikiri papu wai (kg/m3);
Gamma kino — kirikiri papu wai (N/m3);
Q — rere papu kirikiri (m3/s);
H - kirikiri papu upoko (m);
G — te whakaterenga o te kaha (m/s2).
Te kaha o te rakau P me te kaha Pe o te ngaronga mana o te papu kirikiri, te rahi o te ine pai o te papu kirikiri.Ko te kaha o te papu kirikiri ko te mana whai hua me te owehenga mana o te rakau, ma te whakamahi i te η.
Wā tuku: Hūrae-13-2021