1. Phalla-E bua ka molumo kapa boima ba mokelikeli o fanoang kepompo ea metsika nako ea yuniti. E hlalositsoe ke Q, litekanyetso tse sebelisoang hangata ke m3/h, m3/s kapa L/s, t/h.
2.Hlooho-E bua ka matla a ntseng a eketseha a ho tsamaisa metsi ka matla a khoheli ho tloha ho seketsoana ho ea sebakeng sa pompo ea metsi, ke hore, matla a fumanoang ka mor'a hore metsi a nang le matla a khoheli a fete ka pompong ea metsi.E hlahisoa ke h, yuniti ke Nm/N, eo ka tloaelo e hlahisoang ke bophahamo ba kholomo ea mokelikeli moo mokelikeli o pompeloang teng;Ka linako tse ling boenjiniere bo hlahisoa ke khatello ea sepakapaka, 'me karolo ea molao ke kPa kapa MPa.
( Lintlha: Yuniti: m/p = ρ gh)
Ho latela tlhaloso:
H=Ed-Es
Ed-Energy ho yuniti e le 'ngoe boima ba mokelikeli ka lehlakoreng le ka ntle lapompo ea metsi;
Es-Energy ho boima ba yuniti ea mokelikeli ka har'a flange e kenang ea pompo ea metsi.
Ed=Z d + P d/ ρg + V2d /2g
Es=Z s+ Ps / ρg+V2s /2g
Hangata, hlooho holim'a nameplate ea pompo e lokela ho kenyelletsa likarolo tse peli tse latelang.Karolo e 'ngoe ke bophahamo bo ka lekanyetsoang ba sehlooho, ke hore, bophahamo bo emeng ho tloha holim'a metsi a letamo la ho kena ho ea holim'a metsi a letamo la ho tsoa.E tsejoa e le hlooho ea sebele, karolo ea eona ke tahlehelo ea ho hanyetsa tseleng ha metsi a feta phapeng, kahoo ha u khetha hlooho ea pompo, e lokela ho ba kakaretso ea hlooho ea sebele le tahlehelo ea hlooho, ke hore:
Mohlala oa lipalo tsa hlooho ea pompo
Haeba u batla ho fana ka metsi mohahong o phahameng, nka hore metsi a hona joale a pompo ke 50m.3/h, 'me bophahamo bo otlolohileng ho tloha holim'a metsi a letamo la metsi ho ea boemong bo phahameng ka ho fetisisa ba ho fana ka metsi ke 54m, bolelele bohle ba phala ea phano ea metsi ke 150m, bophara ba phala ke Ф80mm, e nang le belofo e le 'ngoe e tlase, valve e le' ngoe ea heke le valve e le 'ngoe e sa khutleng, le tse robeli tse 900 li kobeha ka r / d = z, hlooho ea pompo e kholo hakae ho finyella litlhoko?
Tharollo:
Ho tloha kenyelletsong e ka holimo, rea tseba hore hlooho ea pompo ke:
H =Hea sebele +H tahlehelo
Moo: H ke bophahamo bo otlolohileng ho tloha holim'a metsi a tanka e kenang ho ea boemong bo phahameng ka ho fetisisa bo fetisang metsi, ke hore: H.ea sebele=54m
Htahleheloke mefuta eohle ea tahlehelo e ntseng e tsoela pele, e baloang ka tsela e latelang:
Liphaephe tse tsebahalang tsa ho hula le ho ntša metsi, litsoe, li-valve, li-valve tse sa khutleng, li-valve tse ka tlase le li-diameter tse ling tsa liphaephe ke 80mm, kahoo sebaka sa eona se ka thōko ke:
Ha sekhahla sa phallo e le 50 m3/h (0.0139 m3/s), sekhahla se lekanang sa phallo ke:
Tahlehelo ea ho hanyetsa hammoho le bophara ba H, ho ea ka lintlha, ha sekhahla sa phallo ea metsi e le 2,76 m / s, tahlehelo ea phala ea tšepe e nang le mafome a 100 ke 13.1 m, e leng tlhokahalo ea morero ona oa phepelo ea metsi.
Tahlehelo ea phaephe ea drain, setsoe, valve, valve ea ho hlahloba le belofo e ka tlase ke2.65m.
Hlooho ea lebelo bakeng sa ho ntša metsi ka nozzle:
Ka hona, kakaretso ea hlooho ea H ea pompo ke
H hlooho= H ea sebele + H tahlehelo e felletseng=54+19.65+2.65+0.388 = 76.692 (m)
Ha u khetha phepelo ea metsi a holimo-limo, pompo ea phepelo ea metsi e nang le phallo e seng ka tlase ho 50m3/ h le hlooho e seng ka tlase ho 77 (m) e lokela ho khethoa.
Nako ea poso: Dec-27-2023