Daim ntawv thov ntawm txoj kab uas hla loj ventilated npauj npaim valve hauv kev lag luam li qub

Daim ntawv thov ntawm txoj kab uas hla loj ventilated npauj npaim valve hauv kev lag luam li qub

(1) Txuas lub valve nrog xov. Qhov kev sib txuas no feem ntau yog ua los ntawm MACHINING

ALVE INLET thiab qhov hluav taws xob xaus rau hauv TAPERED lossis STRAIGHT PIPE THREADS uas tuaj yeem txuas mus rau TAPERED PIPE xov xov sib txuas lossis kab. Vim tias muaj peev xwm ntawm cov dej xau loj hauv qhov kev sib txuas no, cov kab no tuaj yeem raug thaiv nrog sealant, sealing daim kab xev, los yog ntim. Yog hais tias cov khoom ntawm lub valve lub cev tuaj yeem welded, tab sis lub coefficient ntawm expansion yog txawv heev, los yog ntau yam ntawm variation ntawm kev khiav hauj lwm kub yog loj, threaded kev twb kev txuas yuav tsum tau zib mu kaw welding.
Threaded kev twb kev txuas ntawm lub valve feem ntau yog lub nominal meridian hauv qab no 50mm valve. Yog hais tias txoj kab uas hla loj dhau lawm, nws yog ib qho nyuaj heev rau nruab thiab kaw qhov sib koom ua ke.
Txhawm rau pab txhawb kev txhim kho thiab tshem tawm cov xov hlau, cov khoom sib txuas muaj nyob rau ntawm qhov chaw tsim nyog hauv cov kav dej. Valves txog li 50 hli hauv nominal loj tuaj yeem siv lub tes tsho sib koom ua ke, nrog cov xov txuas ntawm ob feem ntawm qhov sib koom ua ke.
(2) Flange txuas valve. Flanged li qub yog yooj yim rau nruab thiab tshem tawm. Tab sis lawv yog cov bulkier tshaj threaded li qub, thiab sib raug zoo kim dua. Yog li ntawd, nws yog qhov tsim nyog rau kev sib txuas ntawm cov yeeb nkab ntawm ntau qhov ntau thiab tsawg. Txawm li cas los xij, thaum qhov kub siab tshaj 350 degrees, vim qhov xoob ntawm bolts, gaskets thiab flanges, uas tseem txo cov load ntawm lub bolts, cov dej xau tuaj yeem tshwm sim rau kev sib txuas ntawm flange hnyav.
(3) Weld lub valve. Qhov kev sib txuas no yog tsim rau txhua yam ntawm qhov siab thiab qhov kub thiab txias, thiab txhim khu kev qha ntau dua li flanged kev twb kev txuas thaum siv nyob rau hauv hnyav hnyav. Tab sis lub welded valve disassembly thiab reinstallation yog qhov nyuaj dua, yog li nws txoj kev siv yog txwv rau feem ntau tuaj yeem khiav tau ntev, lossis siv cov xwm txheej ntawm kev thauj khoom, lub sijhawm kub. Xws li thermal fais fab chaw nres tsheb, nuclear zog project, ethylene project ntawm lub raj xa dej.
Welded li qub nrog nominal diameters txog li 50 hli feem ntau muaj welded jacks tuav cov yeeb nkab ntawm lub tiaj tus kawg ntawm lub load. Vim lub qhov (socket welding) ua rau muaj qhov sib txawv ntawm lub qhov (socket) thiab cov kav raj xa dej, uas yuav ua rau qhov sib txawv yuav raug corroded los ntawm qee qhov kev tshaj tawm, thiab kev vibration ntawm lub raj xa dej yuav ua rau qhov sib koom ua ke qaug zog, yog li kev siv lub qhov (socket) vuam yog txwv.
Nyob rau hauv lub nominal txoj kab uas hla yog loj, kev siv ntawm tej yam kev mob ntawm loading, siab kub, lub valve lub cev feem ntau txais groove vuam, nyob rau tib lub sij hawm, vuam sib koom tes muaj cov thawj yuav tsum tau, yuav tsum xaiv ib tug muaj zog technical welder kom tiav cov hauj lwm.
Loj txoj kab uas hla lub qhov cua npauj npaim valve nyob rau hauv daim ntawv thov ntawm industrial li qub Tam sim no peb lub teb chaws muaj ntau yam industries rau hlau valve, valve dav siv nyob rau hauv zus tau tej cov hlau valve siv rau ntau pua xyoo ntawm keeb kwm, uas muaj los ntawm kev txhim kho cov qauv thiab cov khoom, tab sis los ntawm nws. tus kheej cov kev txwv, cov ntaub ntawv hlau yog ntau thiab ntau tsis tuaj yeem hloov mus rau kev ua haujlwm tsis zoo, xws li muaj zog hnav thiab corrosion. Feem ntau xav txog hauv lub neej luv luv, kev xau cuam tshuam rau kev ruaj ntseg ntawm kev ua haujlwm. Cov tsoos hlau valve yog qhov xav tau ceev nrooj ntawm kev tsim kho tshiab hauv cov khoom siv, tsim thiab tsim cov txheej txheem.
Tam sim no, lub valve feem ntau siv hauv kev tsim khoom ntawm ntau yam kev lag luam hauv peb lub teb chaws yog cov hlau valve. Kev siv hlau valve tau dhau ib puas xyoo keeb kwm. Txawm hais tias nws tau raug txhim kho los ntawm cov qauv thiab cov khoom siv, nws tsis tuaj yeem ua tau raws li qhov xav tau ntawm kev hnav siab, muaj zog corrosion thiab lwm yam kev ua haujlwm hnyav. Feem ntau xav txog nyob rau hauv lub neej luv luv kev pab cuam, leakage cuam tshuam rau stability ntawm lub system ua hauj lwm. Cov tsoos hlau valve yog qhov xav tau ceev nrooj ntawm kev tsim kho tshiab hauv cov khoom siv, tsim thiab tsim cov txheej txheem.
Advanced ceramic khoom, raws li cov khoom tshiab nyob rau hauv lub xyoo pua 21st, tau raug coj los ntawm ntau thiab ntau cov neeg ua haujlwm tshawb fawb. Nws yog lub siab tawv thiab muaj txiaj ntsig kev tsim kho tshiab los siv nws rau kev lag luam li qub.
Cov ntaub ntawv ceramic muaj tsawg heev deformation thiab ntau dua binding zog tshaj hlau. Feem ntau, cov crystalline ionic vojvoog ntawm cov ntaub ntawv ceramic yog me me, thiab tus nqi hluav taws xob ionic yog siab, thiab kev sib koom tes yog loj. Cov khoom no txiav txim siab lub zog tensile, compressive zog, elastic modulus thiab hardness ntawm cov ntaub ntawv ceramic yog siab heev. Ceramic nws tus kheej, txawm li cas los xij, "nkig" thiab kev ua haujlwm nyuaj txwv nws txoj haujlwm ntawm kev siv xyoo caum tsis ntev los no, vim yog martensitic theem hloov toughening thev naus laus zis, cov khoom siv sib xyaw science thiab thev naus laus zis thiab kev txhim kho thiab kev vam meej ntawm lub tswv yim ntawm nanometer ceramics ua los ntawm cov tais diav thiab cov plooj (porcelain). "nkig" tau txais * * los txhim kho, toughness thiab lub zog tau zoo heev, nthuav daim ntawv thov ntau yam.
Hnav-resistant ceramic valve feem ntau yog siv rau hauv hluav taws xob fais fab, roj av, tshuaj lom neeg kev lag luam, metallurgy, mining, dej phwj kho thiab lwm yam kev lag luam, tshwj xeeb tshaj yog nyob rau hauv lub ntsej muag ntawm siab hnav, muaj zog corrosion, kub kub, siab siab thiab lwm yam kev ua hauj lwm hnyav, tab sis kuj qhia nws qhov kev ua tau zoo tshaj plaws. Nws tuaj yeem ua tau raws li kev siv siab hnav, muaj zog corrosion ib puag ncig, tshwj xeeb tshaj yog qhov zoo tshaj plaws yog lub neej ua haujlwm ntev, nws qhov kev ua tau zoo ntawm tus nqi yog zoo dua li lwm cov hlau zoo li qub. Nrog rau kev txhim kho txuas ntxiv thiab kev vam meej ntawm kev tshawb fawb thiab thev naus laus zis, cov ntaub ntawv ceramic los ntawm kev tsim, molding, ua thiab sib dhos tshuab thiab lwm yam ntawm cov cuab yeej siv tau zoo dua thiab ua tiav, ceramic valve nrog nws cov kev ua tau zoo heev kom tau txais kev lees paub ntawm cov neeg hauv kev lag luam. . Kev ua tiav ntawm kev ua cov pob zeb ceramic kuj tuaj yeem siv rau kev ua haujlwm siab tshaj plaws.