Umehluko phakathi kwe-ductile iron Valve kanye nesango lensimbi elicijile Ukuhlukaniswa kwe-valve okusongela indawo yokuvala ye-valve yensimbi engagqwali "izinto ezimbi" ezimbalwa.
Ingxenye yokuvula neyokuvala yevalvu yesango lensimbi eyinsimbi yipuleti lesango. Ukuqondiswa kokunyakaza kwepuleti lesango ku-perpendicular kuya kolunye uketshezi. I-valve yesango ingavulwa ngokugcwele futhi ivalwe ngokugcwele, kodwa ayikwazi ukulungiswa nokuphonswa. Ubuso obubili bokuvala bevalve yesango bumise okwe wedge. I-engeli ye-wedge iyahlukahluka ngemingcele ye-valve, ngokuvamile engu-50, no-2 ° 52 'lapho izinga lokushisa eliphakathi lingekho phezulu. I-valve yesango le-wedge ingenziwa yonke, ebizwa ngokuthi isango eliqinile; Kungenziwa futhi kube isango elingakhiqiza ukuguquguquka komkhondo ukuze kuthuthukiswe ubuchwepheshe bayo futhi kwenze ukuphambuka kwe-Angle yokuvala uphawu ngesikhathi sokucubungula. Lolu hlobo lwesango lubizwa ngesango elinwebekayo.
Ingxenye yokuvula neyokuvala yevalvu yesango lensimbi eyinsimbi yipuleti lesango. Ukuqondiswa kokunyakaza kwepuleti lesango ku-perpendicular kuya kolunye uketshezi. I-valve yesango ingavulwa ngokugcwele futhi ivalwe ngokugcwele, kodwa ayikwazi ukulungiswa nokuphonswa. Ubuso obubili bokuvala bevalve yesango bakheka baba umcengezi. I-engeli ye-wedge iyahlukahluka ngemingcele ye-valve, ngokuvamile engu-50, no-2°52 'lapho izinga lokushisa eliphakathi nendawo lingekho phezulu. I-valve yesango le-wedge ingenziwa yonke, ebizwa ngokuthi isango eliqinile; Kungenziwa futhi kube isango elingakhiqiza ukuguquguquka komkhondo ukuze kuthuthukiswe ubuchwepheshe bayo futhi kwenze ukuphambuka kwe-Angle yokuvala uphawu ngesikhathi sokucubungula. Lolu hlobo lwesango lubizwa ngesango elinwebekayo.
Ukuhlukaniswa kwama-valve esango lensimbi
I-valve yesango lensimbi ye-Cast: ngokwezinto ezibonakalayo, kukhona i-valve yesango lensimbi yensimbi, i-valve yesango yensimbi engenasici, i-valve yesango yensimbi eyingxubevange ephansi (i-chromium molybdenum steel ukumelana nokushisa okuphezulu ingeyalesi sigaba), i-valve yesango yensimbi ephansi, njll.
Izinhlobo ezahlukahlukene zama-valve esango lensimbi zinezigaba ezahlukahlukene zensimbi ezivame ukusetshenziswa ngale ndlela elandelayo:
1. I-Carbon steel gate esangweni amamaki okuphonsa yilawa: WCA, WCB, WCC, LCB, njll. Izinga lokushisa elisebenzayo -46 degrees ~425 degrees.
2. Insimbi engagqwali isango valve castings: 301 insimbi engagqwali, CF8 insimbi engagqwali (okuhambisana forging 304 insimbi engagqwali), CF8M insimbi engagqwali (okuhambisana forging 316 insimbi engagqwali), njll lokushisa Okusebenzayo -198 degrees ~816 degrees.
3, low ingxubevange steel ihlukaniswe izinga lokushisa eliphezulu ingxubevange steel futhi ephelele ongaphakeme ingxubevange steel, phakathi lapho izinga lokushisa eliphezulu ingxubevange steel ngokuvamile kuthiwa chromium molybdenum steel.
I-Chromium molybdenum steel esangweni amamaki e-valve cast: ZG1Cr5Mo, ZG15Cr1MoV, ZG20CrMoV, WC6, WC9, C12A njalonjalo. Izinga lokushisa elisebenzayo 550 degrees 750 degrees.
Izinga lokushisa elisebenza ebangeni ngalinye lezinto lihlukile, kuye ngezimo zangempela zokusebenza.
I-Gb nominal pressure (MPa)
Ikilasi lephawundi elijwayelekile laseMelika (>
Ukucindezela okujwayelekile kwe-valve
1.62.54.06.410.015030040060090010 K20K
2.43.86.09.615.03.17.810.215.323.13.17.8 ingcindezi yokuhlola amandla omzimba (Mpa)
Ukuhlolwa kokuvalwa kwamanzi anengcindezi ephezulu 1.82.84.07.011.02.15.67.511.216.82.15.6 (Mpa)
Ukuhlolwa kophawu lwegesi yengcindezi ephansi (i-Mpa) ngokuya ngokutholwa kokuvuza kokuvuza kwegesi engu-0.5Mpa~0.7Mpa.
Izinga lokusebenza lokuhlola: I-GB/T13927-2008 igama lokuhlolwa kwengcindezi yevalvu evamile
Izinga lokuklama: I-GB/T12234-2007 Igama: Amavalvu esango lensimbi anama-stud caps embonini ye-petroleum negesi yemvelo
Uxhumano lwe-Flange: I-JB/T79-94 I-Flange ye-Mechanical Ministry standard, i-GB/T9113-2000 indinganiso ye-flange enconyiwe kazwelonke, i-HG/T20592-2009 i-Chemical Ministry flange
Ubude besakhiwo: GB12221-2005 Igama: ubude besakhiwo se-valve yensimbi
Ububanzi begama: DN15~DN1200mm
Ingcindezi encane: PN10~PN320, 1.0Mpa~32.0Mpa
Isondo lesandla, isibambo kanye nendlela yokudlulisa akuvunyelwe ukusetshenziselwa ukuphakamisa, futhi ukushayisana akuvunyelwe ngokuqinile.
Amavalvu esango eliphindwe kabili kufanele afakwe aqonde phezulu (okungukuthi isiqu sime mpo nesondo lesandla phezulu).
Ama-valve esango anama-bypass valve kufanele avulwe ngaphambi kokuvula (ukulinganisa umehluko wengcindezi phakathi kokungena nokuphuma kanye nokunciphisa amandla okuvula).
I-valve yesango enomshini wokushayela izofakwa ngokulandela imiyalelo yomkhiqizo.
Gcoba ama-valve okungenani kanye ngenyanga uma evamise ukusetshenziswa ngokuvula noma ukuvala.
Ukugeleza kwamapayipi, ingcindezi, ukulawulwa kwezinga lokushisa kokukhiqizwa okuzenzakalelayo kwezimboni ezihlukahlukene. Isibonelo: amandla kagesi, i-metallurgy, i-petrochemical, ukuvikelwa kwemvelo, ukuphathwa kwamandla, uhlelo lokuvikela umlilo nokunye. Isikhathi eside, ama-valve esango ajwayelekile asetshenziswa emakethe ngokuvamile ayavuza noma ayagqwala. Amanye amabhizinisi ethula ubuchwepheshe baseYurophu bokukhiqiza irabha nama-valve obuchwepheshe obusezingeni eliphezulu ukuze kukhiqizwe ivalve yesango lokuvala isihlalo esinwebekayo, esinqoba ivalve yesango elijwayelekile elingavaleki kahle, ukugqwala nokunye ukonakala. I-valve yesango lokunwebeka lesihlalo sophawu isebenzisa ipuleti lesango elinwebekayo ukukhiqiza inani elincane lesinxephezelo sokuguga okunwebekayo ukuze kuzuzwe umphumela omuhle wokuvala. I-valve inezinzuzo zokushintsha ukukhanya, uphawu oluthembekile, inkumbulo enhle yokunwebeka nokuphila kwesevisi.
"Ububi" obuningana obusongela indawo yokuvala yamavalvu ensimbi engagqwali
I-valve yensimbi engagqwali ibhekisela ekusetshenzisweni kwezinto zensimbi engagqwali ezenziwe ngama-valve. I-valve iyingxenye yokulawula ohlelweni lokulethwa koketshezi lwamapayipi. Isetshenziselwa ukushintsha isigaba sesiteshi kanye nesiqondiso sokugeleza kwe-medium. Inemisebenzi yokuphambukisa, ukunqamula, ukulawula, ukugoqa, ukuhlola, ukwehlisa noma ukukhulula ingcindezi echichimayo. Amavalvu okulawula uketshezi asukela kumavalvu embulunga alula kuya kumavalvu asetshenziswa ezinhlelweni zokulawula ezizenzakalelayo eziyinkimbinkimbi kakhulu ezinhlobonhlobo zezinhlobonhlobo kanye nokucaciswa.
I-valve yensimbi engagqwali kanye nepayipi noma umshini wokuxhumanisa umshini ukuxhuma kwe-flange yensimbi engagqwali engu-304, okuvame ukubizwa ngokuthi i-304 stainless steel flange connection.
I-valve yensimbi engagqwali isebenzisa impahla yensimbi engagqwali enesibambo, i-turbine, i-pneumatic, isakhiwo sokudlulisa ugesi, ukushintsha okuguquguqukayo nokukhanya. Isakhiwo esihlangene, isisindo esilula, ukulondolozwa okulula kokushisa, ukuyifaka kalula. Imodi yokuxhuma: i-welding, intambo, i-flange ukuze abasebenzisi bakhethe. Inokusebenza okuhle kakhulu kokuvala kanye nokumelana nokugqwala. Ama-valve ensimbi engagqwali ayaqhubeka nokumunca ubuchwepheshe obuphambili bangaphandle, kuhlangene nesimo sangempela sokuthuthukiswa kwasekhaya, ukuya ezifuyweni esikhundleni sokungeniswa kwamanye amazwe. Isetshenziswa kugesi yemvelo, i-petroleum, ukufudumeza, inethiwekhi yamapayipi amakhemikhali kanye ne-thermoelectric nakwezinye izinkambu zamapayipi okuhambisa amabanga amade.
Njengamanje ekusetshenzisweni kwama-valve ensimbi engagqwali, i-valve yebhola yensimbi engenasici, i-valve yesango, i-globe valve emakethe isebenzisa okusobala kakhudlwana.
Uma kuqhathaniswa nezimboni zendabuko, ngenxa yokulinganiselwa kwezici zesakhiwo, akufanelekile ukumelana nokushisa okuphezulu, ukucindezela okukhulu nokumelana nokugqwala, ukumelana nokugqoka nezinye izimboni. Ukulimala kwazo zonke izinhlobo zezinto kuhlukaniswe izigaba ezimbili zokulimala komuntu kanye nemvelo, i-valve yensimbi engagqwali ayihlukile, umonakalo wemvelo, ukuguga kwe-valve ngaphansi kwezimo ezijwayelekile zokusebenza. Kungumonakalo odalwe ukugqwala okungenakugwemeka nokuguguleka kwendawo evalekayo yi-medium, ehlukaniswe ikakhulukazi ngamaphoyinti alandelayo:
1. Ukufakwa nokugcinwa ngendlela efanele
Lesi sici siholela ekusebenzeni okungavamile kwendawo yokuvala, futhi i-valve igijima nesifo, okuholela ekungqubuzaneni okuphoqelekile nokulimala kwendawo yokuvala. Ukusebenza okuyinhloko ukuthi i-valve ayikhethiwe ngokuvumelana nesimo sokusebenza, futhi i-valve ye-truncation isetshenziswa njenge-valve ye-throttle, okuholela ekucindezelweni kokuvala kukhulu kakhulu futhi ukuvala uphawu kushesha kakhulu noma ukuvala uphawu akuqinile, ngakho-ke. ukuthi indawo yokuvala igugulekile futhi igugile.
2. Ukukhetha okungalungile nokusebenza okungalungile
Ikakhulukazi hhayi ngokwezimo zokusebenza bese ukhetha i-valve, njenge-valve ye-truncation lapho kusetshenziswa i-valve ye-throttle, okuholela ekucindezelweni kokuvala kube kukhulu kakhulu futhi ukuvala uphawu kushesha kakhulu noma ukubekwa uphawu kungabi lukhuni, ukuze indawo yokubeka uphawu idlule. ukuguguleka nokuguga. Noma i-valve yensimbi eyinsimbi isetshenziswa emithonjeni edlayo, noma i-valve engavimbeli izinga lokushisa isetshenziswa ezimweni zokushisa eziphakeme. Noma impahla engaphezulu yokuvala isetshenziswa endaweni enokungcola okwengeziwe kanye nezinga lokushisa eliphakeme.
3. Ukuguguleka okuphakathi
Kungumphumela wokugqoka, ukugeza kanye ne-cavitation yendawo yokuvala lapho i-medium isebenza. Ngesivinini esithile, izinhlayiya ezinhle zeplanktic phakathi nendawo ziphula indawo yokuvala, zidale umonakalo wendawo. I-medium enesivinini esikhulu ehambayo igeza ngokuqondile indawo yokuvala, ibangele umonakalo wendawo. Lapho okuphakathi kuhlangana bese kuhwamuka, ukuqhuma kwebhamuza okucasukile kuthinta indawo evalekayo, kubangele umonakalo wendawo. Ukuguguleka kwendawo ephakathi kuhlanganiswe nesenzo esishintshanayo sokuguguleka kwamakhemikhali kuzoyiguguleka kakhulu indawo evalekile.
4. Ukuguguleka kwe-Electrochemical
Indawo yokubeka uphawu ixhumene nomunye nomunye, indawo yokuvala ixhumene nomzimba ovalayo kanye nomzimba we-valve, kanye nomehluko wokuhlushwa we-medium, umehluko wokuhlushwa komoya-mpilo nezinye izizathu, kuzoveza umehluko ongaba khona, ukuguguleka kwe-electrochemical. , okuholela ekugugulekeni kohlangothi lwe-anode lwendawo yokuvala.
Isikhathi sokuthumela: Nov-15-2022
