Ivalve yokutywina umphezulu umonakalo isizathu ivalve manual butterfly valve

Ivalve yokutywina umphezulu umonakalo isizathu ivalve manual butterfly valve

Umonakalo womatshini, ukutywinwa kwendawo yokuvula kunye nokuvalwa kwe-US kuya kuvelisa i-abrasion, i-bump, i-squeeze kunye nomnye umonakalo. Phakathi kweendawo ezimbini zokutywinwa, phantsi kwesenzo sokushisa okuphezulu kunye noxinzelelo oluphezulu, ii-athomu zingena ngaphakathi komnye nomnye, okubangela ukuba kubekho into yokubambelela. Xa iindawo ezimbini zokutywina zishukuma enye kwenye, ukuncamathela kutsalwa lula. Ukutywina uburhabaxa bomphezulu buphezulu, le nto yenzeka lula. I-valve kwinkqubo yokuvala, i-disc ye-valve kwinkqubo yokubuyela kwisihlalo iya kulimaza kwaye icinezele indawo yokutywina, ukwenzela ukuba indawo yokutywina inxibe okanye i-indentation.
Ukukhukuliseka kwendawo ephakathi kuyiphumo lokugqoka, ukuhlamba kunye ne-cavitation yendawo yokutywina xa i-medium isebenza. Ngesantya esithile, iincinci ezincinci eziphakathi ziya kuphula indawo yokutywina kwaye zibangele umonakalo wendawo. I-speed medium medium iya kuhlamba ngokuthe ngqo indawo yokutywina kwaye ibangele umonakalo wendawo. Xa i-medium ixutywe kwaye ingumphunga ngokuyinxenye, iqamza elinomsindo liya kugqabhuka lichaphazele umphezulu wokutywina, libangele umonakalo wendawo. Isiphumo esitshintshanayo sokhukuliseko lwemithombo yeendaba kunye nokukhukuliseka kweekhemikhali kuya kukhukulisa ngamandla umphezulu wokutywina.
Ukhukuliseko lwe-Electrochemical, ukutywina ukudibana komphezulu kunye nomnye, ukutywinwa komphezulu kunye nomzimba ovaliweyo kunye noqhagamshelwano lomzimba wevalve kunye nomehluko ophakathi woxinaniso, umahluko woxinaniso lweoksijini kunye nezinye izizathu, ziya kuvelisa umahluko onokubakho, ukukhukuliseka kwe-electrochemical, okukhokelela kwicala le-anode lendawo yokutywina. .
Ukhukuliseko lwekhemikhali oluphakathi, oluphakathi kufuphi nomphezulu wokutywina kwimeko yokungabikho kwangoku, i-medium ngqo idlala indima yekhemikhali kunye nomphezulu wokutywina, ukhukulisa umphezulu wokutywina.
Ufakelo olungafanelekanga kunye nokugcinwa kakubi kukhokelela kumsebenzi ongaqhelekanga wokutywinwa kwendawo, kwaye i-valve isebenza ngesifo, eyonakalisa indawo yokutywina ngaphambi kwexesha.
Umonakalo obangelwa kukukhetha okungafanelekanga kunye nokukhwabanisa. Ukusebenza okuphambili kukuba i-valve ayikhethwanga ngokwemeko yokusebenza, kwaye i-valve yokuqhawula isetyenziswe njenge-valve ye-throttle, ekhokelela ekunyanzeliseni ukutywinwa okuphezulu kunye nokukhawuleza okanye ukutywinwa kwe-lax, ukwenzela ukuba indawo yokutywinwa ikhutshwe. kwaye igugile.
Ukutywina umgangatho womatshini wokutywina umbi, ubukhulu becala ubonisa iziphene zomphezulu wokutywina ezinje ngokuqhekeka, i-porosity kunye noyilo lwe-clamp, ngenxa ye-welding egqunyiweyo kunye nenkcazo yonyango lobushushu ekukhethweni okungafanelekanga kwinkqubo yokwaleka kwe-welding kunye nokuphathwa kobushushu kunye nolawulo, olubangelwa ubuso bokutywina obubi bunzima ngokuphezulu okanye obuphantsi, ngenxa yomahluko obangelwa yimpazamo okanye unyango olungafanelekanga lobushushu, khetha izinto zokutywina umphezulu wobunzima obungalinganiyo, akukho mhlwa, Ngokukodwa ngenxa yokuba inkqubo yokujonga iya kuvuthela isinyithi esisezantsi ukuya phezulu, nciphisa ukutywinwa. umphezulu ingxubevange ukwakheka okubangelwa. Kakade ke, kukwakho nemiba yoyilo.
Izizathu zokutywinwa komonakalo womphezulu zingashwankathelwa ngolu hlobo lulandelayo.
Isizathu sokutywinwa komonakalo womhlaba ngumonakalo womntu kunye nomonakalo wendalo. Umonakalo owenziweyo ubangelwa yimiba efana noyilo olubi, ukuveliswa kakubi, ukukhetha izinto ezingafanelekanga, ukufakwa ngokungafanelekanga, ukusetyenziswa kakubi kunye nokugcinwa kakubi. Umonakalo wendalo kukugqoka kunye nokukrazula kwevalve phantsi kweemeko eziqhelekileyo zokusebenza, kunye nomonakalo obangelwa ukukhukuliseka okungenakuphepheka kunye nokukhukuliseka kwendawo yokutywina ngokuphakathi.
Ivalve yebhabhathane Ivalve yokusebenza ngesandla isetyenziswa ngomqheba okanye isixhobo sokuhambisa igiya, ivelufa yebhabhathane yombane okanye ipneumatic iqhutywa sisixhobo sombane okanye isixhobo somoya, ukuze ipleyiti yebhabhathane ijikeleze ngama-90° ukuvula okanye ukuvala ivalve. Kwiivalvu zebhabhathane ezisebenza ngesandla (kubandakanya ivili lesandla lesixhobo sokuqhuba) okanye ngesikrufu, ivalve iya kuvalwa ngokujikisa ivili lesandla okanye isikrufu ngewotshi xa sijongene nevili lesandla okanye isikrufu, ngaphandle kokuba kuchazwe ngenye indlela kwikhontrakthi yomyalelo. Ivalve kufuneka igcinwe kwigumbi elomileyo nelingena umoya. Zombini iziphelo zepaseji yevalvu kufuneka zivaliwe. Iivalvu zexesha elide ezigciniweyo kufuneka zihlolwe rhoqo ukuba zimdaka. Ingqwalasela ekhethekileyo kufuneka ihlawulwe ekucoceni kwendawo yokutywina ukukhusela umonakalo wokutywinwa kwendawo.
Uluhlu lwe-1.
Le ncwadana iquka idiameter yegama DN50mm ~ 1600mm (2″ ~ 64″), uxinzelelo lwegama
I-PN1.0 MPa ukuya kwi-4.0 MPa (ANSI >
2. Sebenzisa
2.1 Isetyenziselwa ikakhulu ukuvula okanye ukuvala i-medium yepayipi kunye nezixhobo zohlengahlengiso, i-flow interception kunye nokutshekisha.
2.2 Khetha imathiriyeli yevalvu ngokophakathi.
2.2.1 Ivalve yentsimbi yeCarbon ilungele amanzi, umphunga, i-oyile kunye nezinye imidiya.
2.2.2 Iivalvu zensimbi ezingenasici zifanelekile kwimidiya ephazamisayo.
2.2.3 Ivalve yentsimbi yokuphosa ifanelekile kumanzi kunye nendawo yerhasi.
2.3 Iqondo lokushisa elisebenzayo lixhomekeke kwizinto eziphathekayo zokuhlala.
I-PTFE(PTFE) ≤130℃
Insimbi engenasici + entsonkothileyo ≤425℃
Irabha 60 ℃ okanye ngaphantsi
Ulwakhiwo lwe-3.
3.1 Ulwakhiwo olusisiseko lwevalve yebhabhathane luboniswe kuMfanekiso 1
3.2 Ukupakishwa kweengxenye zokugqoka zenziwe nge-polytetrafluoroethylene okanye i-graphite eguquguqukayo, kwaye ukutywinwa kunokwethenjelwa.
4. Ukusebenza
4.1 Ivalve yokusebenza ngesandla isebenzisa isixhobo sokuhambisa okanye isixhobo sokuhambisa, ivalve yombane okanye ipneumatic butterfly iqhutywa sisixhobo sombane okanye isixhobo somoya, ukuze ipleyiti yebhabhathane ijikelezise ama-90° ukuvula okanye ukuvala ivalve.
4.2 Kwivalve yebhabhathane esebenza ngesandla (kubandakanya ivili lesandla lesixhobo sokuqhuba) okanye ngesikrufu, ngaphandle kokuba kucaciswe ngolunye uhlobo kwikhontrakthi yomyalelo, xa ujongene nevili lesandla okanye isikrufu, ivalve iya kuvalwa ngokujika ivili lesandla okanye isikrufu ngasekunene.
4.3 Imiyalelo yokuvula nokuvala yeevalvu zebhabhathane zombane kunye ne-pneumatic ziphawulwa ngezalathi zokuma kwizixhobo zombane nezepneumatic.
5. Ukugcinwa, ukugcinwa, ukufakwa kunye nokusetyenziswa
5.1 Ivalve iya kugcinwa kwigumbi elomileyo nelingena umoya, kwaye zombini iziphelo zepaseji yevalvu ziya kuvalwa.
5.2 Iivalvu ezigcinwe ixesha elide kufuneka zihlolwe rhoqo ukungcola. Ingqwalasela ekhethekileyo kufuneka ihlawulwe ekucoceni kwendawo yokutywina ukukhusela umonakalo wokutywinwa kwendawo.
5.3 Ngaphambi kofakelo, khangela ngononophelo ukuba ngaba uphawu lwevalve luhambelana neemfuno zokusetyenziswa.
5.4 Ngaphambi kofakelo, i-valve passage kunye nendawo yokutywina kufuneka ihlolwe. Ukuba kukho ukungcola, kufuneka kucocwe ngelaphu lokucoca.
5.5 Ngaphambi kokufakela, khangela ukuba ukupakishwa kuxinzezelekile ukuqinisekisa ukuba ukupakisha kungenayo umoya kwaye akufanele kuthintele ukujikeleza kwe-valve stem.
5.6 Ngexesha lofakelo, amandla okuqinisa i-screw connector kufuneka avale ngokulinganayo.
5.7 Ivalve yebhabhathane inokufakwa kwimibhobho ethe tyaba kunye nethe nkqo, kwaye indawo yofakelo kufuneka iqinisekise ukuba ikulungele ukusetyenziswa, ukuyigcina kunye nokutshintshwa kwayo.
5.8 Xa i-valve ye-manual ivuliwe okanye ivaliwe, isibambo kufuneka sisetyenziswe ukuvula nokuvala, kwaye i-lever encedisayo okanye ezinye izixhobo akufanele zibolekwe.
5.9 Ivalve iya kujongwa rhoqo ukuba igugile kunye negasket epakishwayo kumphezulu wokutywina. Kwimeko yomonakalo okanye ukungaphumeleli, ukulungiswa okanye ukubuyisela ngexesha.
5.10 Ukugcina, ukugcinwa, ukufakela nokusetyenziswa kwezixhobo zombane kunye ne-pneumatic valve transmission, nceda ujonge “Imiyalelo yokuSebenza yezixhobo zevalvu yombane” kunye “neMiyalelo yokuSebenza yeziXhobo zevalve yepneumatic”.
6. Iimpazamo ezinokwenzeka, izizathu, kunye neendlela zokuphelisa ziboniswe kwiThebhile yoku-1
Uluhlu 1 Iimpazamo ezinokwenzeka, izizathu, kunye neendlela zokusombulula ingxaki
Iwaranti ye7.
Umenzi unoxanduva lwewaranti yevalve kunyaka omnye emva kokuba isetyenziswe, kodwa hayi ngaphezulu kweenyanga ezili-18 emva kokunikezelwa. Ngexesha lewaranti, ngenxa yezizathu zomgangatho wemveliso zinokulungiswa okanye zitshintshwe iindawo.