Ekukhetheni kweempompo zamanzi, ukuba ukhetho aluchanekanga, iindleko zinokuphakama okanye ukwenziwa kwempompo yepompo kungakwazi ukufezekisa iimfuno zendawo. Nika umzekelo ukubonisa eminye imigaqo ekufuneka ilandelwe ngamanzi.
Ukukhethwa kwempompo yokunyanzelwa kabini kufuneka inikele ingqalelo kumanqaku alandelayo:
1. Isantya:
Isantya esiqhelekileyo simiselwa ngokwemifuno yomthengi. Ukuphatha ngesantya sempompo efanayo, inqanaba lokuhamba elihambelanayo kunye nokuphakamisa kuya kuncipha. Xa ukhetha imodeli, kubalulekile ukuba ungaqwalaseli kuphela ukusebenza kwezoqoqosho, kodwa neemeko zesayi, ezinje: Ukufakwa kwezinto eziphakathi, ukunxiba, izinto zokuziqhelanisa, njl.
2. Ukuzimisela kwe-NPSH:
I-NPSH inokugqitywa ngokwexabiso elinikezwe ngumthengi, okanye ngokweemeko ze-inlet zempompo, amaqondo obushushu aphakathi kunye noxinzelelo lwe-themospicic kwi-themospicic uxinzelelo:
Ukubalwa kobude bokufakwa kwempompo yamanzi (i-algorithm elula: Ngokwe-themospic themospic themospic kunye namanzi obushushu aqhelekileyo) ngolu hlobo lulandelayo:
Phakathi kwawo: Ukufakwa kwe-HG
I-Starfic Ardic AMANZI YAMANZI AMANQAKU KWIPHEPHA LOKUSETYENZISWA
Ilahleko ye-HC-Ilahleko yokulahleka; .
Intloko yoxinzelelo (Amanzi acacileyo kubushushu begumbi ubalwa njenge-0.24m)
-Ivumelana ne-NPSH; (Ukuqinisekisa ukhuseleko, ukubala ngokwe-NPSHR × 1.2, i-NPSHR Bona ikhathalogu)
Umzekelo, i-NPSH NPSHR = 4M: HG = 10.33-0.5.5-0.5m, (4 × 4 × 1.2). Yiba mkhulu kunexabiso eliliweyo, oko kukuthi, inqanaba leli nqanaba lamanzi linokuba ngaphezulu kwexabiso elibaliweyo ngaphezulu komgca we-impleller).
Oku kungasentla kubalwa phantsi kwemeko yobushushu obuqhelekileyo, amanzi acocekileyo kunye nenqanaba eliqhelekileyo. Ukuba iqondo lobushushu, ukungcungcutheka kunye nokuphakama kwephakathi kungaqhelekanga, ukwenzela ukuthintela ukwenziwa kwe-caviting kunye nezinye iingxaki ezichaphazela ukuseta okuqhelekileyo kwepumps, amaxabiso ahambelanayo kufuneka akhethwe kwaye athathelwe indawo yokubalwa. Phakathi kwazo, ubushushu kunye nokuxinana kwephakathi kubabalwa ngokweenqobo zokuziphatha ezihambelana "kwi-daporition yoxinzelelo lwamanzi", kwaye indawo eqondakalayo ibalwa ngokweengcinezelo ezihambelana nezixeko ezikhulu kweli lizwe ". Enye i-NPS evumelekileyo kukuqinisekisa ukhuseleko, ngokutsho kwe-NPSHR × 1.4 (eli xabiso liyi-1.4).
3. Xa uxinzelelo lwe-inlet yempompo eqhelekileyo yi-pumps yi-≤0.2MPA, xa i-Inlet Axinenkene + intloko × 1.5 amaxesha ி Ingcinezelo yoxinzelelo;
I-Infery Axinenkene + intloko (iNtloko ye-1.5 Ukuba uxinzelelo lwe-inlet luphezulu kakhulu okanye uxinzelelo lovavanyo luphezulu kakhulu, njl.
I-FUMP yePump yoMatshini yeThengiso ye-Toal's: M7N, M74 kunye ne-M37g-G92 yeZintlukwano ezixhomekeke kuyilo lwempompo, itywina eliqhelekileyo / i-gungsten Xa uxinzelelo lwe-inlet l≥0.8MPA, itywina elilungelelanisiweyo kufuneka likhethwe;
5. Kucetyiswa ukuba iqondo lobushushu eliphakathi le-pump yokuncamathisela kabini akufuneki lidlule kwi-120 ° C. Xa i-100 ° C ≤ Iqondo lobushushu eliphakathi ≤ 120 ° C, impompo eqhelekileyo kufuneka ilungiswe: i-pump yokutywina kunye nenxalenye yokuthwala kufuneka ixhotywe ngamanzi okupholisa; Zonke ii-o-tings zempompo zenziwa zombini ukusetyenziswa: zombini irabha (kubandakanya itywina).
Ixesha lokuposa: ngoMeyi-10-2023