Valve sealing surface umonakalo isizathu valve manual uvemvane valve

Valve sealing surface umonakalo isizathu valve manual uvemvane valve

Ukulimala kwemishini, indawo evalekayo ekuvuleni nasekuvaleni kwe-US kuzoveza ukuhuzuka, ukuqhuqha, ukuminyanisa nomunye umonakalo. Phakathi kwezindawo ezimbili zokuvala uphawu, ngaphansi kwesenzo sokushisa okuphezulu nokucindezela okukhulu, ama-athomu angena komunye nomunye, okuholela entweni yokunamathela. Lapho izindawo ezimbili zokuvala zinyakaza, ukunamathela kudonseka kalula. Ukuqina kwendawo yokuvala kuphezulu, lesi simo senzeka kalula. I-valve enqubweni yokuvala, i-disc ye-valve ohlelweni lokubuyela esihlalweni izolimaza futhi incinde indawo yokuvala, ukuze indawo yokuvala igqoke noma i-indentation yendawo.
Ukuguguleka kwe-medium kuwumphumela wokuguga, ukugeza kanye ne-cavitation yendawo yokuvala lapho okuphakathi kusebenza. Ngesivinini esithile, izinhlayiya ezinhle eziphakathi zizophula indawo yokuvala futhi zidale umonakalo wendawo. I-high-speed medium izogeza ngokuqondile indawo yokuvala futhi ibangele umonakalo wendawo. Lapho okuphakathi kuxutshiwe futhi kuhwamuka kancane, ibhamuza elithukuthele lizoqhuma futhi libe nomthelela endaweni yokuvala, lidale umonakalo wendawo. Umthelela oshintshanayo wokuguguleka kwemithombo yezindaba kanye nokuguguleka kwamakhemikhali kuzoguguleka kakhulu indawo evalekile.
Ukuguguleka kwe-Electrochemical, ukubeka uphawu kokuxhumana okungaphezulu komunye nomunye, ukuvala ubuso nomzimba ovaliwe nokuxhumana komzimba we-valve kanye nomehluko wokuhlushwa okuphakathi, umehluko wokuhlushwa komoya-mpilo nezinye izizathu, kuzoveza umehluko ongaba khona, ukuguguleka kwe-electrochemical, okuholela ekutheni uhlangothi lwe-anode lwendawo yokuvala luguguleke. .
Ukuguguleka kwamakhemikhali kwendawo ephakathi nendawo, okuphakathi nendawo eduze nendawo evalekayo uma ingekho imanje, okuphakathi nendawo kudlala indima yamakhemikhali ngokuqondile ngendawo yokuvala, kuguguleka indawo yokuvala.
Ukufakwa okungafanele kanye nokugcinwa okungalungile kuholela ekusebenzeni okungavamile kwendawo yokuvala, futhi i-valve isebenza ngesifo, esilimaza indawo yokuvala ngaphambi kwesikhathi.
Umonakalo odalwe ukukhetha okungalungile nokukhohlisa. Ukusebenza okuyinhloko ukuthi i-valve ayikhethiwe ngokuvumelana nesimo sokusebenza, futhi i-valve yokusika isetshenziswa njenge-valve ye-throttle, okuholela ekucindezelweni okuphezulu kakhulu kokuvala nokuvala okusheshayo noma okuxekethile, ukuze indawo yokuvala iguguleke. futhi igugile.
Ikhwalithi yomshini wokuvala insimbi yimbi, ikakhulukazi iboniswa endaweni evalekayo njengokonakala okufana nokuqhekeka, i-porosity kanye nomklamo we-clamp, ngenxa ye-welding embozayo kanye nencazelo yokwelashwa kokushisa ukukhetha okungalungile enqubweni ye-welding yokumbondela kanye nokuphathwa kokushisa nokulawula, okubangelwa Ubuso bokubeka uphawu okubi buqinile ngokuphezulu noma obuphansi, ngenxa yomehluko obangelwa iphutha noma ukwelashwa okushisa okungafanele, khetha ukuqina kokuqina kokuqina kokuqina okungalingani, akukho ukugqwala, Ikakhulukazi ngenxa yokuthi inqubo yokuvela kuyoshaya insimbi ephansi iye phezulu, nciphisa ukubekwa uphawu. ukwakheka kwe-alloy surface okubangelwa. Yiqiniso, kukhona nezindaba zokuklama.
Izimbangela zokulimala kwendawo yokubeka uphawu zingafingqwa ngale ndlela elandelayo.
Imbangela yokulimala kobuso obuvaliwe ukulimala komuntu kanye nokulimala kwemvelo. Ukulimala kokwenziwa kubangelwa izici ezifana nokuklama okungalungile, ukukhiqizwa okungalungile, ukukhetha okungalungile kwempahla, ukufakwa okungalungile, ukusetshenziswa kabi kanye nokugcinwa okungalungile. Ukulimala kwemvelo ukuguga kwe-valve ngaphansi kwezimo ezijwayelekile zokusebenza, kanye nomonakalo obangelwa ukuguguleka okungenakugwemeka nokuguguleka kwendawo evalekayo yi-medium.
I-valve ye-Butterfly Ivalve yokusebenza ngesandla isebenza ngesibambo noma isisetshenziswa sokudlulisa igiya, i-valve yevemvane kagesi noma yomoya iqhutshwa idivayisi kagesi noma idivayisi yomoya, ukuze ipuleti levemvane lizungezise ngo-90 ° ukuze livule noma livale ivalvu. Kumavalve ovemvane asebenza ngesandla (okuhlanganisa isondo lesandla ledivayisi yokushayela) noma ngesikrufu, ivalvu izovalwa ngokuphendula isondo lesandla noma isikrufu sibheke kwewashi lapho sibhekene nesondo lesandla noma isikrufu, ngaphandle uma kucaciswe ngenye indlela kwinkontileka ye-oda. I-valve kufanele igcinwe ekamelweni elomile, elinomoya. Zombili iziphetho zephaseji ye-valve kufanele zivalwe. Ama-valve agcinwe isikhathi eside kufanele ahlolwe njalo ukuthi angcolile yini. Ukunakwa okukhethekile kufanele kukhokhwe ekuhlanzweni kwendawo yokuvala ukuvimbela ukulimala kwendawo yokubeka uphawu.
Ibanga elingu-1.
Le manuwali ifaka phakathi ububanzi obujwayelekile be-DN50mm~1600mm(2″~64″), ukucindezela okuzisholo
I-PN1.0 MPa ukuya ku-4.0 MPa (ANSI >
2. Sebenzisa
2.1 Isetshenziselwa kakhulu ukuvula noma ukuvala indawo yamapayipi kanye nemishini yokulungisa, ukunqamula ukugeleza nokuhlola.
2.2 Khetha impahla ye-valve ngokuya ngendlela.
2.2.1 Ivalvu yensimbi ye-Carbon ilungele amanzi, isitimu, uwoyela kanye nezinye imidiya.
2.2.2 Amavalvu ensimbi engagqwali afanele imidiya egqwalayo.
2.2.3 I-valve yensimbi yokusansimbi ilungele amanzi nendawo yegesi.
2.3 Izinga lokushisa elisebenzayo lincike ezintweni zesihlalo.
I-PTFE(PTFE) ≤130℃
Insimbi engagqwali + eyinkimbinkimbi ≤425℃
Irabha engu-60 ℃ noma ngaphansi
Isakhiwo sesi-3.
3.1 Isakhiwo esiyisisekelo sevalve uvemvane sikhonjisiwe kuMfanekiso 1
3.2 Ukupakishwa kwezingxenye zokugqoka kwenziwa nge-polytetrafluoroethylene noma i-flexible graphite, futhi ukubekwa uphawu kuthembekile.
4. Ukusebenza
4.1 I-valve yokusebenza eyenziwa mathupha isebenzisa isibambo noma idivayisi yokudlulisa igiya, i-valve yevemvane kagesi noma yomoya iqhutshwa idivayisi kagesi noma isisetshenziswa somoya, ukuze ipuleti levemvane lizungezise ngo-90° ukuze livule noma livale ivalvu.
4.2 Ivalvu yovemvane esebenza ngesandla (kuhlanganise nesondo lesandla ledivayisi yokushayela) noma ngesikrufu, ngaphandle uma kucaciswe ngenye indlela kwinkontileka ye-oda, lapho ibhekene nesondo lesandla noma isikrufu, ivalvu izovalwa ngokujikisa isondo lesandla noma iklintshi ngokwewashi.
4.3 Imiyalo yokuvula nokuvala yamavalvu ovemvane kagesi nawewomoya imakwa ngezinkomba zokuma kumadivayisi kagesi nawewomoya.
5. Ukugcinwa, ukugcinwa, ukufakwa kanye nokusetshenziswa
5.1 Ivalvu kufanele igcinwe ekamelweni elomile nelingena umoya, futhi amaphethelo womabili wephaseji yevalvu ayovinjwa.
5.2 Amavalvu agcinwe isikhathi eside kufanele ahlolwe njalo ukuthi angcolile yini. Ukunakwa okukhethekile kufanele kukhokhwe ekuhlanzweni kwendawo yokuvala ukuvimbela ukulimala kwendawo yokubeka uphawu.
5.3 Ngaphambi kokufaka, hlola ngokucophelela ukuthi umaki wevalvu uyahambisana yini nezidingo zokusebenzisa.
5.4 Ngaphambi kokufakwa, i-valve passage kanye nendawo yokuvala kufanele ihlolwe. Uma kukhona ukungcola, kufanele kuhlanzwe ngendwangu yokuhlanza.
5.5 Ngaphambi kokufaka, hlola ukuthi ukupakisha kucindezelwe yini ukuze uqinisekise ukuthi ukupakisha akunamoya futhi akufanele kuvimbe ukujikeleza kwesiqu se-valve.
5.6 Ngesikhathi sokufakwa, amandla aqinisayo wesixhumi sesikulufa kufanele avalwe ngokulinganayo.
5.7 I-valve uvemvane ingafakwa kumapayipi avundlile naqondile, futhi indawo yokufaka kufanele iqinisekise ukuthi ikulungele ukusetshenziswa, ukulondolozwa nokushintshwa.
5.8 Uma i-valve ye-manual ivuliwe noma ivaliwe, isibambo kufanele sisetshenziselwe ukuvula nokuvala, futhi i-lever yokusiza noma amanye amathuluzi akufanele ibolekwe.
5.9 Ivalvu kufanele ihlale ihlolwe ukuthi ayigugile yini kanye nokupakishwa kwe-gasket endaweni yokuvala. Uma kwenzeka umonakalo noma ukwehluleka, lungisa noma ushintshe ngesikhathi.
5.10 Ukugcina, ukunakekela, ukufakwa kanye nokusetshenziswa kwamadivaysi okudlulisa amavalvu womoya, sicela ubheke “Imiyalo yokusebenza yamadivaysi amavalvu kagesi” kanye “Nemiyalo yokusebenza yamadivaysi amavalvu womoya”.
6. Amaphutha okungenzeka, izimbangela, kanye nezindlela zokuwaqeda kukhonjisiwe kuThebula loku-1
Ithebula 1 Amaphutha angenzeka, izimbangela, kanye nezindlela zokuxazulula izinkinga
Iwaranti engu-7.
Umkhiqizi unesibopho sewaranti yevalvu phakathi nonyaka owodwa ngemva kokusetshenziswa, kodwa kungakapheli izinyanga eziyi-18 ngemva kokulethwa. Phakathi nesikhathi sewaranti, ngenxa yezizathu zekhwalithi yomkhiqizo ingakhandwa noma ishintshwe izingxenye.