Uluhlu oluqhelekileyo kunye nesiseko se-fire pump outlet pressure gauges
Uluhlu oluqhelekileyo lwegeyiji yoxinzelelo lwempompo yomlilo ngokuqhelekileyo yi-0.8-1.4 MPa. Olu luhlu lusekwe kule migangatho ilandelayo yobungcali:
1. IiMfuno zoMgangatho weSizwe:Ngokutsho kweSiqendu 5.1.6 "IiNkcazo zeTechnical for Fire Water Supply and Fire Hydrant Systems" (GB 50974-2014), uxinzelelo lwempompo yomlilo kufuneka luhlangabezane neemfuno zokusebenza zoxinzelelo lwezixhobo zokucima umlilo kwindawo engathandekiyo yenkqubo. Ixabiso loyilo jikelele ngu-0.8-1.4 MPa.
2. Iimeko zesicelo esisebenzayo:
- Izakhiwo ezisezantsi{1}}eziphakamileyo (ezifana nezakhiwo zokuhlala kunye nodederhu lweevenkile ezincinci) zikholisa ukuba noxinzelelo olusezantsi lwe-0.8 MPa.
- Izakhiwo eziphakamileyo{1}}eziphakamileyo okanye iikhompleksi ezinkulu zifuna uluhlu loxinzelelo lwe-1.0-1.4 MPa ukoyisa ukuxhathisa kwemibhobho kunye nokwahluka kokuphakama.
3. Isalathiso samazwe ngamazwe:Umgangatho we-US NFPA 20 uphinde uncome ukugcina uxinzelelo lwempompo yomlilo malunga ne-1.0 MPa, ehambelana ngokubanzi nemigangatho yasekhaya.
Izizathu ezinokwenzeka kunye nezisombululo zoxinzelelo olungaqhelekanga
Ukuba igeyiji yoxinzelelo ingaphandle koluhlu oluqhelekileyo, hlalutya oku kulandelayo:
1. Uxinzelelo oluphantsi (<0.8 MPa):
- Unobangela: Ukunxitywa kwe-impeller, ukuvuza kwemibhobho, umbane ongonelanga wobonelelo lombane, okanye izibuko lokufunxa elivalekileyo.
- Isisombululo: Jonga ukuvuza, coca isihluzi, kwaye ubuyisele i-impeller okanye wandise uxinzelelo ukuba kukho imfuneko.
2. High Pressure (>1.4 MPa):
- Isizathu: Ivalve yokuphuma ayivulekanga ngokupheleleyo, umbhobho uvalekile, okanye igeyiji yoxinzelelo ayisebenzi.
- Isisombululo: Jonga isimo sevalvu, coca umbhobho, kwaye ulungelelanise rhoqo igeyiji yoxinzelelo.
Indlela yokubeka iliso ngokufanelekileyo kunye nokugcinwa kweGauji yoxinzelelo
1. Ulungelelwaniso lwarhoqo:Yenza ulungelelwaniso rhoqo emva kweenyanga ezintandathu ngokungqinelana ne "Pressure Instrument Verification Regulations" (JJG 52-2013) ukuqinisekisa ukufundwa ngokuchanekileyo.
2. Uhlolo lwemihla ngemihla:Qwalasela isalathi sozinzo, khangela iglasi yokucofa iintanda, kwaye ujonge ukuvuza kumalungu.
3. Uvavanyo lonxulumano:Idityaniswe novavanyo lwenkqubo yokhuseleko lomlilo, linganisa iimeko zangempela zokusebenza ukuze uqinisekise ukuba impendulo yoxinzelelo iyahlangabezana nexabiso loyilo.
Inqaku elongezelelweyo:Ixabiso lokulinganisa uxinzelelo luphawu olulodwa kuphela lwempilo yempompo yomlilo; kufuneka kwakhona ithathelwe ingqalelo kunye nezinye iiparameters ezifana nesantya sokuhamba kunye nomsinga. Ngokomzekelo, ukuba uxinzelelo luqhelekileyo kodwa izinga lokuhamba alanele, ukuvinjelwa okuyingxenye kumbhobho kungabangela. Kucetyiswa ukuba abasebenzisi bagcine iirekhodi ezipheleleyo zokuhlola impompo yomlilo kwaye bagcine ingxelo yokuhlola ekhutshwe yintlangano yobuchwephesha ukuze isetyenziswe kwixesha elizayo.