Gwaro iri rine chinangwa chekuderedza kuvhurwa kwemavharuvhu netsaona mumasisitimu ekutonhodza amoniya.
Sechikamu chehurongwa hwekudzora simba, International Ammonia Refrigeration Institute (IIAR) yakaburitsa mazano akawanda ekudzivirira kuvhurwa netsaona kwemavharuvhu emaoko mumasisitimu ekutonhodza eammonia (R717).
Shanduro yekutanga yechirongwa ichi-Nhungamiro dzekugadzira hurongwa hwekudzora simba remavharuvhu emaoko mumasisitimu ekutonhodza eammonia-nhengo dzeIIAR dzinogona kuitenga nemadhora zana nemakumi mashanu, uye vasiri nhengo vanogona kuitenga nemadhora mazana matatu.
Kudzora vharuvhu rinoshandisa manual ndekwekudzora simba rine njodzi, iro rinowanzo kunzi lockout/tagout (LOTO) procedure. Sekureva kwewebhusaiti yeYunivhesiti yeIowa Environmental Health and Safety, izvi zvinogona kudzivirira vashandi kubva mukukuvadzwa kana kuurayiwa netsaona kana kuburitswa kwesimba rakachengetwa pavanenge vachigadzirisa michina, maitiro, uye masisitimu.
Simba rine njodzi rinogona kuva remagetsi, rehydraulic, repneumatic, remakanika, remakemikari, rekupisa, kana mamwe masosi. "Kutevedzera maitiro nemaitirwo akakodzera eLOTO kunogona kudzivirira vashandi kubva pakuburitswa kwesimba rine njodzi," webhusaiti yeYunivhesiti yeIowa inowedzera.
Kubva apo US Occupational Health and Safety Administration (OSHA) yakaisa mutemo wekudzora simba rine njodzi (lock/list) muna 1989, maindasitiri mazhinji akaisa zvirongwa zvekudzora simba reLOTO. Asi izvi zvinowanzo tarisa simba rine njodzi remagetsi neremakanika; sekureva kweIIAR, indasitiri yeHVAC&R haina kujeka pakuvhurwa kwemavharuvhu emaoko netsaona, izvo zviri kukonzera kubuda kweammonia kakawanda.
Gwaro idzva iri rine chinangwa che "kuzadza mukaha uripo muindasitiri" uye kupa varidzi nevashandisi vemavharuvhu eR717 anoshandiswa nemaoko mazano akanakisa ekushandisa zvirongwa zvekudzora simba.
Nguva yekutumira: Nyamavhuvhu-21-2021
