Izixhobo zokutshixa iivalvu zizinto ezibalulekileyo ekuqinisekiseni ukhuseleko emsebenzini, ingakumbi kumashishini apho ukukhutshwa kwamandla ayingozi kuyinkxalabo. Isiganeko esiphawulekayo esagxininisa ukubaluleka kwezi zixhobo senzeka ngo-2005 kwisityalo seekhemikhali eTexas. Ivalvu yavulwa ngempazamo ngexesha lokulungiswa rhoqo, nto leyo eyakhokelela ekukhutshweni kweegesi ezinobuthi kunye nokuqhuma okukhulu. Esi siganeko sagxininisa imfuneko yeenkqubo eziqinileyo zokutshixa/ukuthega (LOTO) ukuthintela ukusebenza okungekho mthethweni okanye ngengozi koomatshini kunye neenkqubo. Sinezi zizathu engqondweni, makhe sihlolisise ukuba zeziphi izixhobo zokutshixa iivalvu, indlela yokuzisebenzisa, kunye nesizathu sokuba zibalulekile.
Izixhobo zokutshixa iivalvu zibalulekile ekuqinisekiseni ukuba oomatshini nezixhobo zihlala zingasebenzi kakuhle ngexesha lokugcinwa nokulungiswa. Ngokutshixa ivalvu endaweni yayo, ezi zixhobo zithintela ukukhutshwa kwamandla ayingozi ngengozi, zikhusela abasebenzi kwingozi enokubakho.
Zithini izixhobo zokutshixa iiValve?
Izixhobo zokutshixa iivalvu ziindlela zokhuseleko ezenzelwe ukwahlukanisa imithombo yamandla ukuqinisekisa ukuba oomatshini nezixhobo azinakusebenza ngelixa kusenziwa ukulungiswa okanye ukugcinwa. Ezi zixhobo ziza ngeendlela ezahlukeneyo kwaye zisetyenziswa kumashishini apho ukukhululwa kwamandla ayingozi okungafunekiyo kunokubeka umngcipheko omkhulu wokhuseleko. Iintlobo eziqhelekileyo ziquka ukutshixa iivalvu zebhola, ukutshixa iivalvu zesango, kunye nokutshixa iivalvu zebhabhathane.
Injongo ephambili yezixhobo zokutshixa iivalvu kukubonelela ngomqobo obonakalayo othintela ukuguqulwa kwevalvu. Olu mqobo luqinisekisa ukuba ivalvu ihlala ikwindawo ekhuselekileyo, nokuba ivuliwe okanye ivaliwe, kuxhomekeke kwiimfuno zenkqubo yolondolozo. Ukongeza kwi-lock ebonakalayo, ezi zixhobo zihlala ziquka indlela yokumakisha enika ulwazi olubalulekileyo malunga nemeko yokutshixa, njengegama lomntu onoxanduva lokutshixa kunye nomhla owasetyenziswa ngawo.
Iintlobo zezixhobo zokutshixa iivalvu
Kukho iintlobo ezahlukeneyo zezixhobo zokutshixa iivalvu, nganye yenzelwe ukulungelelanisa uqwalaselo kunye nokusetyenziswa kweevalvu ezahlukeneyo. Ukuqonda iintlobo ezahlukeneyo kunokunceda ekukhetheni isixhobo esifanelekileyo kwiimfuno ezithile:
Ukutshixwa kweValve yeBhola
Ukutshixa iivalvu zebhola zenzelwe ukuba zingene phezu kwesiphatho seevalvu zebhola, nto leyo ethintela ukuba isiphatho singajikwa. Ezi zivalelo zihlala zihlengahlengiswa ukuze zilungele ubungakanani beesiphatho ezahlukeneyo. Zisetyenziswa kakhulu kuba iivalvu zebhola zixhaphakile kwiindawo ezininzi zoshishino.
Esi sixhobo sisebenza ngokufaka isiphatho kwisigqubuthelo esikhuselayo esiqiniswe ngesitshixo. Ngabasebenzi abagunyazisiweyo kuphela abanesitshixo okanye indibaniselwano abanokususa isitshixo, beqinisekisa ukuba ivalvu ayinakuvulwa okanye ivalwe ngengozi. Olu hlobo lokuvalelwa ngaphandle luluncedo ngakumbi kwiinkqubo ezibandakanya ulwelo okanye iigesi, apho ukuvulwa ngengozi kunokukhokelela ekuchithekeni, ukuvuza, okanye ukwakheka koxinzelelo oluyingozi.
Ixesha lokuthumela: Agasti-31-2024
