I-Boiler Safety Valve ingenye yezinsiza zokuphepha ezibaluleke kakhulu zokuqinisekisa ukusebenza okuphephile kwe-boiler.Ukuthi ingavulwa ngokunembile nangokwethembeka kubaluleke kakhulu ukugcina ukusebenza okuphephile kwe-boiler.

Njenge-valve enomsebenzi obalulekile wokuvikela, i-valve yokuphepha isetshenziswa kabanzi emikhunjini yokucindezela ehlukahlukene kanye nesistimu yamapayipi, lapho uhlelo lomkhumbi wokucindezela lufinyelela umkhawulo ophezulu wenani elibekiwe lokucindezela, umkhumbi wokucindezela ungavulwa ngokuzenzakalelayo ngokungeniswa, kanye nokweqile. i-medium ingakhishwa ohlelweni lomkhumbi we-pressure, futhi ingavalwa ngokuzenzakalelayo ngemva kokukhishwa, ngaleyo ndlela iqinisekise ukuthi umkhumbi wokucindezela ungasebenza ngaphakathi kwebanga elivumelekile elivumelekile lokucindezela, ukugwema izingozi ezinkulu zokuphepha.Ukusebenza okuvamile kwe-valve yokuphepha akuhlobene kuphela nokusetshenziswa okuphephile okujwayelekile kwemikhumbi yokucindezela njengama-boilers, kodwa futhi kuhlobene ngokuqondile nokuphepha kwezimpilo zabantu kanye nezakhiwo.Ngakho-ke, ukunakwa okukhulu kufanele kukhokhwe ekuhlulekeni okuvamile kwe-Boiler Safety Valve, futhi kuqedwe ngesikhathi esifanele.

1. Ukuvuza kweValve Yokuphepha

Ukuvuza kwevalvu kungenye yamaphutha ajwayelekile eBoiler Safety Valve.Ngokuyinhloko ibhekisela ekuvuzeni phakathi kwe-valve disc nesihlalo se-valve ngaphansi kwengcindezi evamile yokusebenza.

Izimbangela zokwehluleka kanye nezixazululo zabo:

1) Ukungcola kuwela endaweni yokuvala.Lift wrench ingasetshenziswa ukuvula valve izikhathi eziningana, ukungcola wageza away.

2) Seal umonakalo ebusweni.Ngokwezinga lomonakalo, indlela yokugaya noma yokugaya ngemva kokuphenduka kufanele isetshenziselwe ukulungisa.Ngemuva kokulungiswa kufanele uqinisekise ubushelelezi bokubeka uphawu, ubushelelezi bayo akufanele bube ngaphansi kuka-10.

I-3) Ngenxa Yokuhlangana Okungalungile noma ukulayishwa kwepayipi nezinye izizathu, yenza izingxenye zokulimala kwe-concentricity.Imithwalo eyengeziwe yamapayipi kufanele ihlanganiswe kabusha noma iqedwe;

I-4) Ingcindezi yokuvula i-valve iseduze kakhulu nokucindezela kwemishini evamile, ukuze indawo yokuvala iphansi kunengcindezi.Uma i-valve ingaphansi kokudlidliza noma ukushintshashintsha kwengcindezi emaphakathi, ijwayele ukuvuza.Ukucindezela kokuvula kufanele kulungiswe ngokuvumelana nesimo samandla wemishini.

I-5) Intwasahlobo evulekile inciphisa ingcindezi yokubeka futhi ibangele ukuthi i-valve ivuze.Kungase kube ngenxa yokushisa okuphezulu noma ukugqwala nezinye izizathu, kufanele kuthathwe ukushintsha intwasahlobo, noma ngisho nokushintsha i-valve nezinye izinyathelo.Uma ibangelwa ukulawulwa okungalungile, idinga kuphela ukuqinisa isikulufu sokulungisa kahle.

2. Ukucindezela Okuphansi Kokubuyisela kwe-valve yokusiza

Izimbangela zokwehluleka kanye nezixazululo zabo:

Ukucindezela okuphansi kokubuyisela kuzodala inani elikhulu le-medium ukuze likhiphe ngokuhamba kwesikhathi, okuholela ekulahlekelweni kwamandla okungadingekile, isizathu siwukuthi i-valve yokusiza i-spring pulse ngenani elikhulu lokukhishwa kwe-steam, leli fomu le-valve yokusiza i-impulse livuleke, okuphakathi kuyaqhubeka. ukukhipha, ukudlidliza Umzimba Wevaluvu Yokusiza, noma i-valve yokusiza umfutho ngaphambi nangemva kwamandla ngenxa yokukhishwa okuphakathi kwe-valve yokusiza akwanele ukuqhubeka nokwanda, ngakho-ke isitimu esiseshubhuni yokuphefumula eduze kwesihloko segesi yesigubhu siyaqhubeka nokugeleza isenzo se-valve.

Ngakolunye uhlangothi ngenxa yalolu hlobo lwe-Impulse safety valve action impulse safety valve sealing surface.Ekuhleleni kabusha kwayo ukwakha indawo yokucindezela kwe-kinetic, i-spool izophakanyiswa, ukuze i-valve yokuphepha kwe-impulse iqhubeke nokuphuma, ukukhishwa okukhulu kwe-steam, indima ye-Spool ekuphepheni kokuphonswa kwesikhulu, ukuphepha kwe-Impulse. i-valve kuzoba lula ukubuyela esihlalweni.Kuleli qophelo, indlela yokuqeda iphutha iwukuvala i-valve ye-throttle, ukuze ukugeleza kwe-valve yokusiza i-impulse ukunciphisa ukucindezela endaweni yokucindezela kwamandla e-kinetic, ukuze i-valve yokusiza i-impulse ibuyele esihlalweni.Isici sesibili esibangela ukucindezela okuphansi kokubuyisela ukuthi imvume efanelekile phakathi kwe-spool kanye nomkhono womhlahlandlela ayifanele, futhi imvume efanelekile incane, ukubambezeleka Isikhathi Sokubuyisela, indlela yokuqeda lokhu kwehluleka ukuhlola ngokucophelela usayizi we I-spool iphinde iqondise izingxenye zemikhono, nge-clearance encane, yehlise ikhava ye-disc ngokuqondile noma i-disc stop valve cap ububanzi noma ikhulise i-disc kanye nokuqondisa i-sleeve radial clearance, ukwandisa indawo yokujikeleza kwengxenye, ukuze ukugeleza kwe-steam kungaphambukisi lapho ingcindezi yendawo ukwenza indawo yokucindezela kwe-kinetic ephezulu.

3. Ukuvuza Kwamalungu Omzimba

Ukuvuza kwendawo ehlangene ye-valve yomzimba ikakhulukazi kubhekisela esimweni sokuvuza esingaphezulu nesingaphansi somzimba we-valve.

Izimbangela zokwehluleka kanye nezixazululo zabo:

Eyodwa indawo ehlangene ye-bolt tight force ayanele noma ibambene ngokwengxenye, okuholela endaweni ehlangene yophawu olungeluhle.Indlela yokuqeda iwukuba ulungise amandla okuqinisa ibhawodi, kubhawodi eliqinile kufanele libanjwe ngokuhambisana ne-diagonal tightening way, kungcono ukukala yonke i-side side clearance, i-bolt tight ukuze inganyakazi kuze kube manje, futhi wenze. ukukhishwa okuhlangene kwendawo yonke okuhambisanayo.

Okwesibili, i-valve body joint surface ye-tooth seal gasket ayihlangabezani nendinganiso.Isibonelo, i-groove encane ngasendleleni ye-radial ye-tooth seal gasket, ukufana okungahambi kahle, izinyo elibukhali kakhulu noma umthambeka kanye nokunye ukukhubazeka kuzodala ukwehluleka kokuvalwa.Lokhu kubangela ukuthi ilunga lomzimba we-valve livuze.Ekunakekeleni ikhwalithi yezingxenye ezisele, ukusetshenziswa kwe-gasket evamile emise okwezinyo kungagwema lesi simo.

Okwesithathu, indiza ehlangene yomzimba we-valve imbi kakhulu noma ngenxa yokwehluleka kophawu lomcamelo wokungcola okunzima.Ukuqedwa kokuvuza kwendawo yomzimba ngenxa yokungafiki kahle kwendawo yomzimba ukuqaqa i-valve bese ugaya kabusha indawo ehlangene ize ifinyelele izindinganiso zekhwalithi.Uma uphawu luhluleka ngenxa yokupakishwa kokungcola, hlanza ngokucophelela indawo ehlangene ukuze ugweme ukungcola okuwela emhlanganweni we-valve.

4. Ukubambezeleka Ukubuyiswa kwevalvu yokukhulula

Ukusebenza okuyinhloko kwe-valve yokukhulula umfutho ngemva kokubuya kwevalvu enkulu ebambezelekile isikhathi sokubuya inkulu kakhulu.

Izimbangela zokwehluleka kanye nezixazululo zabo:

Kunezizathu ezimbili eziyinhloko zalokhu kwehluleka.Ngakolunye uhlangothi, ukuvuza kwePiston Chamber yevalvu yokusiza enkulu kukhulu.Nakuba i-valve yokusiza umfutho isibuyele esihlalweni sayo, umfutho we-steam epayipini nasePiston Chamber usephezulu kakhulu, futhi amandla aphusha i-piston phansi asemakhulu kakhulu, lokhu kubangela ukuthi i-valve yokusiza enkulu ibuyele esihlalweni. kancane.Indlela yokuqeda lolu hlobo lwenkinga ngokuyinhloko ixazululwa ngokuvula i-valve ye-throttle banzi nokwandisa ububanzi bembobo ye-throttle.Kokubili ukuvuleka kwevalve ye-throttle ibe banzi kanye nokwanda kwembobo yomphimbo kwenza isitimu esisele eshubhuni lokushaya siphele ngokushesha, ngakho-ke, ukucindezela ku-Piston kuyehla, futhi amandla ashukumisayo asebenza ku-Piston aye phezulu naphansi. kuncishiswe ngokushesha.I-valve core ibuyiselwa ngokushesha esihlalweni ngaphansi kokuphonswa phezulu kwe-steam medium kunhlokweni kanye namandla okudonsela phezulu kwe-spring ye-valve yokuphepha eyinhloko ngokwayo.Ngakolunye uhlangothi, ukungqubuzana phakathi kwezingxenye ezihambayo kanye nezingxenye zokulungisa ze-valve yokuphepha eyinhloko kuzobangela ukuthi i-valve yokuphepha eyinhloko ibuyele esihlalweni kancane kancane, isisombululo sale nkinga ukulingana nezingxenye eziyinhloko ezihambayo ze-valve kanye nezingxenye ezihleliwe. ngaphakathi kwebanga elijwayelekile lekhonsoli yokususa.

5. I-Safety Valve Chatter

Isimo sokudlidliza se-valve yokuphepha ngesikhathi sokuphuma sibizwa ngokuthi i-chatter ye-valve yokuphepha.Isimo sokuxoxa sibangela kalula ukukhathala kwensimbi, okunciphisa ukusebenza kwemishini kwe-valve yokuphepha futhi kubangele inkinga enkulu efihliwe yezinto zokusebenza.

Izimbangela zokwehluleka kanye nezixazululo zabo:

Izimbangela eziyinhloko ze-flutter yilezi ezilandelayo: Ngakolunye uhlangothi, i-valve isetshenziswa ngendlela engafanele, amandla okukhipha i-valve makhulu kakhulu, indlela yokuqeda ukuthi ukukhishwa okulinganiselwe kwe-valve kufanele kusetshenziswe eduze ngangokunokwenzeka ukukhishwa okudingekayo kwemishini.Ngakolunye uhlangothi, ngenxa yokuthi ububanzi bepayipi lokungena lincane kakhulu, lincane kunobubanzi bokungena kwe-valve, noma ukumelana kwepayipi lokungena kukhulu kakhulu, indlela yokuqeda lapho kufakwa i-valve, ububanzi bangaphakathi. wepayipi lokungena akufanele libe ngaphansi kobubanzi bokungena kwe-valve noma ukumelana kwepayipi lokungena kufanele kuncishiswe, lokhu kungaxazululwa ngokunciphisa ukumelana komugqa wokuphuma.