Kubalulekile ukugcina la maphuzu engqondweni mayelana nokufakwa kwe-valve! Amanothi okufakwa kwamavalvu angempela angenisiwe aseJalimane

Kubalulekile ukugcina la maphuzu engqondweni mayelana nokufakwa kwe-valve! Amanothi okufakwa kwamavalvu angempela angenisiwe aseJalimane

Izinga lokufakwa kwe-valve lithinta ngokuqondile ukusetshenziswa, ngakho-ke kufanele kuqashelwe ngokucophelela.
(a) indlela yokufaka i-valve nendawo
Ama-valve amaningi ane-directional, njenge-globe valve, i-throttle valve, i-valve yokunciphisa ingcindezi, i-valve yokuhlola, njll., uma ifakwe ngokuhlehlayo, izothinta ukusetshenziswa komphumela kanye nempilo (njenge-throttle valve), noma ingasebenzi konke (njenge-valve yokunciphisa ingcindezi), futhi kubangele ngisho nengozi (njenge-valve yokuhlola). I-valve evamile, kunophawu lokuqondisa emzimbeni we-valve; Uma kungenjalo, kufanele ikhonjwe ngendlela efanele ngokuvumelana nesimiso sokusebenza kwe-valve. Igumbi le-valve elizungeze i-valve yembulunga alilingani, liwuketshezi lokulivumela lisuka phansi liye phezulu ngembobo ye-valve, ngakho ukumelana noketshezi kuncane (kunqunywa ukuma), ukonga umsebenzi ovulekile (ngenxa yokucindezela okuphakathi phezulu) , ivaliwe ngemva kokupakishwa kwengcindezi ephakathi, kulula ukuyilungisa, yingakho i-valve yomhlaba ingakwazi ukufaka iqiniso. Amanye ama-valve anezici zawo siqu.
I-valve INSTALLATION POSITION, kufanele ibe lula ukuyisebenzisa: NOMA ngabe ukufaka kunzima okwesikhashana, kodwa nomsebenzi wesikhathi eside womsebenzisi. Isondo lesandla se-valve nokuqondisa kwesifuba (ngokuvamile amamitha angu-1.2 ukusuka endaweni yokusebenza), ukuze ukuvulwa nokuvala kwe-valve kube umzamo omncane. Isondo lesandla sevalvu yaphansi kufanele libheke phezulu futhi lingatsheki ukuze kugwenywe ukusebenza kabi. I-valve yomshini wodonga incike emishinini, futhi opharetha kufanele ashiywe endaweni emile. Ukuze ugweme ukusebenza kwesibhakabhaka, ikakhulukazi i-asidi ne-alkali, imidiya enobuthi, ngaphandle kwalokho ayiphephile. Isango akufanele liguqulwe (okungukuthi, isondo lesandla liphansi), ngaphandle kwalokho okuphakathi kuzogcinwa esikhaleni sekhava isikhathi eside, kulula ukugqwala isiqu, futhi kwezinye izidingo zenqubo taboo. Kunzima kakhulu ukufaka esikhundleni sokupakisha ngesikhathi esifanayo. Vula AMAVAVAVA WE-STEM GATE, UNGAFAKI ngaphansi komhlaba, ngaphandle kwalokho ngenxa yokugqwala okumanzi kwesiqu esivelile. Phakamisa i-valve yokuhlola, ukufakwa ukuze uqinisekise ukuthi i-valve disc ime mpo, ukuze i-lift iguquguquke. Swayipha i-valve yokuhlola, lapho ifakiwe ukuze kuqinisekiswe ukuthi izinga lephinikhodi, ukuze linyakaze liguquguquke. I-valve yokunciphisa umfutho izofakwa iqonde epayipini elivundlile, futhi akufanele itshekele kunoma iyiphi indlela.
(2) ukufakwa kwe-valve nokwakhiwa
Ukufakwa nokwakhiwa kufanele kuqaphele, ungashayi i-valve eyenziwe ngezinto eziphukayo.
Ngaphambi KOKUFAKA, IVAVU KUFANELE IYAHLOLWA UKUZE kubhekwe imininingwane KANYE namamodeli ukuze kubonakale noma yimuphi umonakalo, ikakhulukazi wesiqu. Futhi vula izikhathi ezimbalwa ukuze ubone ukuthi i-skewed, ngoba ngesikhathi sokuthutha, kulula ukushaya i-stem skewed. Futhi *** udoti ku-valve.
UMA UPHAKAMISA IVAVAVU, INTAMBO AKUMELE IBOSHWE ESANDWENI NOMA ISIQINISEKISO UKUZE UGWEME UKULIMALA KWALEZI ZINgxenyana. KUFANELE KUBOSHWE EMHLABENI.
Umugqa lapho i-valve ixhunywe khona kufanele ihlanzwe. Umoya ocindezelwe ungasetshenziselwa ukushaya amafayili e-iron oxide, isihlabathi, i-welding slag nezinye izinhlobo. Lezi mfucumfucu, akulula nje ukunwaya indawo yokuvala ye-valve, izinhlayiya ezinkulu zemfucumfucu (njenge-welding slag), kodwa futhi zingavimba i-valve encane, ukuze ukwehluleka kwayo. Lapho UFAKA I-VALVE YESIKREWU, UKUPHAKISWA KOKUVALWA (INTAMBO KAmafutha e-aluminium NOMA Ibhande lezinto ezibonakalayo le-PTFE RAW) kufanele liboshwe kuntambo yepayipi, ungangeni ku-valve, ukuze ugweme ivolumu yememori ye-valve, ithinte ukugeleza okuphakathi.
Lapho ufaka ama-valve e-flange, qaphela ukuqinisa ama-bolts ngokulinganayo nangokulinganayo. I-valve flange kanye ne-pipe flange kufanele ihambisane, imvume inengqondo, funa i-valve ikhiqize ukucindezela okukhulu, ngisho nokuqhekeka. Ngezinto eziqinile futhi hhayi amandla aphezulu we-valve, ukunakwa okukhethekile kufanele kukhokhwe. I-valve ezoshiselwa ngepayipi kufanele ifakwe endaweni eshiselwe kuqala, khona-ke ingxenye evaliwe izovulwa ngokugcwele, bese i-welded ifile.
(3) izinyathelo zokuvikela amavalvu
Amanye ama-valve kufanele futhi abe nesivikelo sangaphandle, okuwukugcina ukushisa nokugcina amakhaza. I-insulation layer kwesinye isikhathi ixutshwa nemigqa yesitimu esishisayo. Hlobo luni lwe-valve okufanele lube ukushisa noma ukubanda, ngokuya ngezidingo zokukhiqiza.
Empeleni, lapho medium valve ukunciphisa izinga lokushisa kakhulu, kuzothinta ukusebenza kahle ukukhiqizwa noma valve eqandisiwe, udinga ukufudumala, ngisho mix ukushisa; Lapho i-valve ingenalutho, ingalungile ekukhiqizeni noma ibangele isithwathwa nezinye izinto ezimbi, udinga ukubanda. Izinto zokufakelwa i-asbestos, uboya be-slag, uboya bengilazi, i-perlite, i-diatomite, i-vermiculite, njll; Izinto zokupholisa zingukhokho, i-perlite, igwebu, ipulasitiki nokunye.
(4) I-Bypass kanye nezinsimbi
Amanye ama-valve, ngaphezu kwezinsiza ezidingekayo zokuvikela, nawo ane-bypass kanye nezinsimbi. I-bypass ifakiwe. Kulula ukulungisa isicupho. Amanye ama-valve, nawo afakwe i-bypass. Ukufakwa kwe-bypass kuncike esimweni se-valve, ukubaluleka, kanye nezidingo zokukhiqiza.
(5) Ukushintshwa kokupakisha
I-valve yesitoko, ukupakisha okuthile akubanga kuhle, kanti okunye akuhambisani nokusetshenziswa kwemidiya, okudingeka kuthathelwe indawo yokupakisha.
I-Valve factory ayikwazi ukucabangela ukusetshenziswa kwezinkulungwane zezinhlobo ezahlukene zemidiya, ibhokisi lokupakisha lihlala ligcwele impande evamile, kodwa lapho lisetshenziswa, kufanele livumele ukupakisha phakathi ukuze livumelane.
Uma ushintsha ukupakisha, cindezela uzungeleze ngokuzungeza. Umthungo ngamunye wendandatho ukuya kuma-degree angama-45 kufanelekile, indandatho futhi ikhale ivuleke ngama-degree angama-180. Ukuphakama kokupakisha kufanele kucabangele i-leeway ukuze indlala iqhubeke nokucindezela, futhi manje kuyadingeka ukuvumela ingxenye engezansi ye-gland icindezele ikamelo lokupakisha ekujuleni okufanele, okungase kube ngu-10-20% wokujula okuphelele igumbi lokupakisha. Kuma-valve afunayo, i-engeli ehlangene ingama-degree angama-30. Umthungo ophakathi kwendandatho nendandatho inyakaza ngamadigri ayi-120. Ngaphezu kokupakisha, kodwa futhi ngokusho kwesimo esithile, ukusetshenziswa kwe-rubber O-ring (irabha yemvelo imelana no-60 degrees Celsius i-alkali ebuthakathaka, i-butadiene injoloba imelana no-80 degrees Celsius ikristalu kawoyela, i-Fluorine iraba imelana nezinhlobonhlobo zokubola. imidiya engaphansi kuka-150 degrees Celsius) indandatho emithathu eyisitaki ye-polytetrafluoron (imelana nemidiya edlayo eqinile engaphansi kuka-200 degrees Celsius) indandatho yesitsha senayiloni (imelana nokungu-120 degrees Celsius ammonia, alkali) nokunye ukugcwaliswa okwenza. Ungqimba lwetheyiphu ye-TEflon eluhlaza lungathuthukisa umphumela wokuvala futhi lunciphise ukugqwala kwe-electrochemical kwesiqu se-valve.
Lapho ucindezela isithokelo, vula isiqu ngesikhathi esifanayo ukugcina nxazonke ngokulinganayo, futhi uvimbele ukufa kakhulu, qinisa indlala ukuphoqa ngokulinganayo, awukwazi ukutsheka.
Amanothi okufakwa kwamavalvu angempela angenisiwe aseJalimane
Ngaphambi kokufakwa kwe-valve, qiniseka ukuthi i-valve ihlangabezana nezidingo zokuklama kanye namazinga afanele.
Lapho uphatha futhi ufaka ama-valve, qaphela amaqhubu kanye nemihuzuko
Ngaphambi kokufaka Ivalvu, OKUMELE KUFANELE KUHLANZWE OKUPHAKATHI KWEPHIPI UKUKUSA ukungcola okufana namafayili okusansimbi ukuvimbela isihlalo sokuvalwa kwevalvu ekubeni sibe nemizimba yangaphandle. Ngaphezu kwalokho, i-valve kufanele ifakwe esimweni esivaliwe.
Ukusebenza kwe-valve yokuphakamisa. IVALIVU IZOPHAKAMISA NGEMPELA ESIKHUNDLENI ESISHISIWE SOKUPHAKAMISA, FUTHI NGEKE IPHEZULUNWE NOMA IYAKHISHWA NGAPHANSI kwamandla endawo.
Lapho ufaka i-valve, kuyadingeka ukunquma ukuthi isiqondiso sokugeleza kwe-medium, ifomu lokufaka kanye nesimo se-handwheel sihambisana nemithethonqubo.
Ukufakwa kwama-valve okuxhumana ane-flanged
(1) Indawo evulekile yevalvu namapayipi kufanele ingabi namonakalo, imihuzuko, njll., futhi igcinwe ihlanzekile. Ikakhulukazi ukusetshenziswa kwama-gaskets ensimbi (isigaba se-oval noma i-octagonal), ama-flange grooves nama-gaskets kufanele ahambisane,
Kufanele imbozwe ngomthofu obomvu ukuze uqiniseke ukuthi isimo sayo sokuvala silungile.
(2) I-perpendicularity yendawo ye-flange epayipini kanye nomugqa omaphakathi wepayipi kanye nephutha lembobo yebhawodi ye-flange kufanele kube phakathi kwenani lenani elivunyelwe. Ivalvu kanye nolayini wesikhungo samapayipi kufanele kuhambisane ngaphambi kokufakwa.
(3) Uma uxhuma ama-flanges amabili, okokuqala, ubuso bokuvalwa kwe-flange kanye ne-gasket kufanele icindezelwe ngokulinganayo, ukuze kuqinisekiswe ukuthi i-flange ixhunywe ukucindezeleka okufanayo kwebhawudi.
(4) Lapho uqinisa amabhawodi, sebenzisa isikrufu esifana namantongomane. Lapho usebenzisa ingcindezi kawoyela kanye namathuluzi omoya wokuqinisa, qaphela ukuthi ungadluli itorque eshiwo.
(5) Ukuqiniswa kwe-flange kufanele kugweme amandla angalingani, futhi kufanele kuqiniswe ngokulandelana ngendlela yokulinganisa nokuhambisana.
(6) Ngemuva kokufakwa kwe-flange, qiniseka ukuthi wonke ama-bolts namantongomane aqinile futhi afanayo.
(7) Impahla yamabhawudi namantongomane kufanele ihlangabezane nemithethonqubo. Ngemuva kokubopha, ikhanda le-bolt kufanele livezwe kusuka ku-nati kabili i-pitch ifanelekile.
(8) Ukuqiniswa kwebhawudi nesikulufu, ukuze kuvinjelwe ukudlidliza okubangelwa ukuxega, ukusebenzisa ama-gaskets. Ukuze ugweme ukunamathela phakathi kwezintambo ekushiseni okuphezulu, izingxenye zentambo kufanele ziboshwe nge-anti-adhesion agent (molybdenum disulfide) ngesikhathi sokufakwa.
(9) Kumavalvu okushisa aphezulu angaphezu kuka-300 degrees Celsius, ngemva kokukhuphuka kwezinga lokushisa, amabhawodi okuxhuma ama-flange, amabhawodi okubopha ama-valve, amabhawodi okuvalwa komfutho kanye namabhawodi okupakisha okumboza umfutho kumele aqiniswe futhi.
(10) I-valve yokushisa ephansi ifakwe esimweni sokushisa komkhathi. Ekusetshenzisweni okungokoqobo, lapho okuphakathi kudlula, kuba yisimo sokushisa esiphansi. Ngenxa yokwakhiwa komehluko wokushisa, ama-flanges, ama-gaskets, ama-bolts namantongomane, njll., ayancipha, futhi ngenxa yokuthi izinto zalezi zingxenye azifani, i-coefficient yabo yokwandisa i-linear nayo ihlukile, okwenza kube lula kakhulu ukuvuza izimo zemvelo. Kusukela ezimeni ezihlukahlukene zenhloso, lapho uqinisa amabhawodi ekushiseni komkhathi, kuyadingeka ukwamukela i-torque ecabangela izici zokufinyela zengxenye ngayinye ekushiseni okuphansi.