IS whakapae kotahi-waahi kotahi-momi pūngao papu
whakaahuatanga hua
1. Ko te momo momo IS ko te waahi kotahi-waahanga kotahi-momi centrifugal papu, kua hangaia kia rite ki te paerewa o te ao ISO2858.He hua whakakapinga mo nga momo papu wai B me BA.He pai mo te ahumahi me te taone wai me te whakaheke wai, ka taea hoki te whakamahi mo te irrigation ahuwhenua me te whakaheke wai.Ka whakamahia mo te kawe i te wai maamaa, etahi atu wai me nga ahuatanga o te tinana me te puawai e rite ana ki te wai maamaa, a, kaore te pāmahana e neke ake i te 80°C.
Ko te momo ISR he raupapa o nga papu wai wera i hangaia e to taatau kamupene kia rite ki te mahi me te rahi i whakaritea i roto i te paerewa o te ao ISO2858.He pai mo te tuku wai ki nga kohua wai wera, nga punaha tohanga wai wera, ka taea hoki te whakamahi mo te wai ahumahi me te taone nui, te whakaheke me te irrigation, engari kaore te pāmahana e neke atu i te l50 ℃.
2. IS(R) awhe mahi (e ai ki te tohu hoahoa):
Tere: 2900r / min me te 1450r / min
Te whanui o roto: 50-200mm
Rere:6.3-400 m³/h
IS: 80-65-160 A... J (D ano hoki)
Yang Cheng: 5-125m
4.Selection o te papu:
(1)I te wa e whiriwhiri ana i nga tohu o te papu wai, me aro te kaiwhakamahi ki nga waahanga e whai ake nei: (1) Ko te rere o te rere o te papu wai kua tohua me iti ake i te hanga wai o te puna, i etahi atu puna wai ranei;
(2) Me whiriwhiri te upoko o te papu wai kia rite ki te upoko tonu, me whakaaro te mate paipa o te papu wai.
(3)I te wa e whiriwhiri ana i te papu wai, me whakaaro te pāmahana o te wai kawe, kia iti iho i te pāmahana kua tohua.
(4) I te wa e whiriwhiri ana i te papu wai, me whakaaro te teitei o te whakaurunga o te papu wai, ara, ko te tawhiti poutū mai i te mata o te wai ki te tuaka o te papu wai kia iti ake i te teitei kua tohua o te papu wai. :
Te whakatau tata mo te teitei whakaurunga papu Hsz:
Hsz≤Hv-Fv-△Hs-[NPSH]
Hsz≤10.09-△Hs-[NPSH]
Kei hea: Hv=10.33 (m) te pēhanga kōhauhau paerewa.(pou wai)
Fv=0.24 (m) Te pehanga ngohe o te wai pāmahana noa (20°C) (tīwae wai)
△Hs=Te ngaronga o te paipa momi, kua tatauhia kia rite ki te ahuatanga.
[NPSH] = NPSH whakaaetia.
[NPSH]=[NPSH]r+0.3(m)
[NPSH]=Ko te NPSH e tika ana kua hoatu ki te Pepa Raraunga Mahi
