Sephahla sa liphallelo tsa polokeho, e tsejoang hape e le valve ea ho phalla ha tšireletso, ke sesebelisoa sa ho imolla khatello e ikemetseng se tsamaisoang ke khatello e mahareng. E ka sebelisoa e le valve ea tšireletso le valve ea liphallelo ho itšetlehile ka kopo.

Ha re nka mohlala oa Japane, ho na le litlhaloso tse batlang li fokola haholo tsa li-valve tsa tšireletso le li-valve tsa liphallelo. Ka kakaretso, lisebelisoa tsa polokeho tse sebelisoang bakeng sa likepe tse kholo tsa polokelo ea matla joalo ka li-boilers li bitsoa li-valve tsa polokeho, 'me tse kentsoeng liphaepheng kapa litsing tse ling li bitsoa li-valve tsa liphallelo. Leha ho le joalo, ho ea ka litokisetso tsa "Technical Standards for Thermal Power Generation" ea Lekala la Khoebo ea Machabeng le Indasteri ea Japane, likarolo tsa bohlokoa tsa tiiso ea ts'ireletso ea lisebelisoa li totobatsa tšebeliso ea li-valve tsa tšireletso, tse kang li-boilers, li-superheaters, li-reheaters, joalo-joalo. Maemong ao karolo e ka tlaase ea valve e fokotsang khatello e hlokang ho hokahanngoa le boiler le turbine, valve ea liphallelo kapa valve ea tšireletso e hloka ho kenngoa. Ka tsela ena, valve ea tšireletso e hloka ho tšepahala ho feta valve ea liphallelo.

Ho phaella moo, ho tloha melaong e phahameng ea khatello ea khase ea Lekala la Basebetsi la Japane, melao ea Lekala la Lipalangoang le mekhatlo ea likepe maemong ohle, ho tsebahatsa le melao ea tsamaiso ea molumo o sireletsehileng oa khase, re bitsa valve e tiisang ho tsoa. bophahamo ba belofo ea polokeho, le belofo e sa tiisetseng molumo oa ho ntša valafo ea liphallelo. Chaena, ebang e butsoe ka ho feletseng kapa e butsoe hanyenyane, ka kakaretso e bitsoa valve ea tšireletso.

1. Kakaretso

Li-valve tsa tšireletso ke lisebelisoa tsa bohlokoa tsa tšireletso bakeng sa li-boilers, likepe tsa khatello le lisebelisoa tse ling tsa khatello. Ho tšepahala ha ts'ebetso ea bona le boleng ba ts'ebetso ea bona li amana ka ho toba le polokeho ea lisebelisoa le basebetsi, 'me li amana haufi-ufi le ho boloka matla le ho sireletsa tikoloho. Leha ho le joalo, basebelisi ba bang le mafapha a meralo ba lula ba khetha mofuta o fosahetseng ha ba khetha. Ka lebaka lena, sengoloa sena se sekaseka khetho ea li-valve tsa polokeho.

2. Tlhaloso

Lintho tse bitsoang li-valve tsa polokeho hangata li kenyelletsa li-valve tsa liphallelo. Ho tsoa melaong ea tsamaiso, li-valve tse kentsoeng ka kotloloho ho li-boilers tsa mouoane kapa mofuta oa likepe tsa khatello li tlameha ho amoheloa ke lefapha la taolo ea botekgeniki. Ka kutloisiso e moqotetsane, li bitsoa li-valve tsa tšireletso, 'me tse ling ka kakaretso li bitsoa li-valve tsa liphallelo. Li-valve tsa polokeho le li-valve tsa liphallelo li tšoana haholo ka sebopeho le ts'ebetso. Ka bobeli ba bona ba itokolla ka har'a sehare se ka hare ha khatello ea ho bula e fetisoa ho netefatsa polokeho ea thepa ea tlhahiso. Ka lebaka la ho tšoana hona ha bohlokoa, hangata batho ba ferekanya tse peli ha ba li sebelisa. Ho feta moo, lisebelisoa tse ling tsa tlhahiso li boetse li bolela hore mofuta ofe kapa ofe o ka khethoa melaong. Ka hona, liphapang pakeng tsa tse peli hangata li hlokomolohuoa. Ka lebaka leo, ho hlaha mathata a mangata. Haeba re batla ho fana ka tlhaloso e hlakileng ea tse peli, re ka li utloisisa ho latela tlhaloso e karolong ea pele ea ASME Boiler le Pressure Vessel Code:

(1)Sephahla se sireletsehileng, sesebelisoa sa ho imolla khatello e ikemetseng se tsamaisoang ke khatello e tsitsitseng ea seaplane ka pel'a valve. E khetholloa ka ketso e feletseng ea ho bula ka ho bula ka tšohanyetso. E sebelisoa lits'ebetsong tsa khase kapa mouoane.

(2)Sephahla sa liphallelo, eo hape e tsejoang e le valve ea ho phalla, ke sesebelisoa sa ho imolla khatello e ikemetseng se tsamaisoang ke khatello e tsitsitseng ea seaplane ka pel'a valve. E bula ka tekanyo ea keketseho ea khatello e fetang matla a ho bula. E sebelisoa haholo-holo lits'ebetsong tsa mokelikeli.