Vim li cas kev xaiv cov khoom siv dej tua hluav taws thiaj tseem ceeb
Kev xaiv cov ntaub ntawv raucov khoom siv tua hluav tawsyog qhov kev txiav txim siab tseem ceeb hauv kev tsim kho uas qhia txog kev npaj ua haujlwm, lub sijhawm txij nkawm, thiab kev ua haujlwm zoo ntawm kev teb rau thaum muaj xwm txheej ceev. Lub taub dej tua hluav taws ua haujlwm ua qhov chaw kawg ntawm kev xa cov kua dej hauv txhua lub kaw lus tua hluav taws, ua rau nws cov khoom siv tsim kho raug kev siv zog hydraulic hnyav, kev raug tshuaj lom neeg ib puag ncig hnyav, thiab kev siv lub cev hnyav heev.
Txawm hais tias kev tsim kho niaj hnub no tau qhia txog ntau yam khoom siv hluavtaws thiab cov hlau sib dua, kev xaiv cov khoom siv tseem yog qhov tseem ceeb uas yuav ua rau lub nozzle siv tau ntev. Cov kws ua haujlwm yuav khoom yuav tsum soj ntsuam cov khoom siv tsis yog tsuas yog ntawm lawv tus nqi pib xwb, tab sis kuj ntawm lawv qhov kev ruaj khov ntawm cov hlau, kev ua haujlwm ntawm lub cev thaum muaj kev nyuaj siab, thiab kev tiv thaiv kev puas tsuaj ntawm ib puag ncig dhau ntau xyoo ntawm kev tos tsis tau.
Kev cuam tshuam rau kev lag luam ntawm kev xaiv cov khoom siv nozzle
Kev tshuaj xyuas tag nrho tus nqi ntawm kev muaj (TCO) qhia tau hais tias tus nqi yuav khoom thawj zaug tsuas yog sawv cev rau 15% txog 20% ntawm tus nqi siv rau lub tshuab dej tua hluav taws. Lub tshuab tooj dag rau kev lag luam feem ntau yuav tsum tau siv nyiaj pib ntawm $ 80 txog $ 150, kwv yees li 30% txog 40% ntau dua li cov qauv txhuas extruded sib npaug. Txawm li cas los xij, qhov cuam tshuam rau kev lag luam pom tseeb hauv lub voj voog hloov pauv thiab kev saib xyuas.
Cov khoom siv tooj dag feem ntau siv tau ntev tshaj 15 txog 20 xyoo hauv kev lag luam hnyav. Qhov sib txawv, cov khoom siv qis dua yuav xav tau hloov txhua 3 txog 5 xyoos vim yog cov xov hnav, xeb galvanic, lossis kev puas tsuaj. Ntxiv mus, cov thawj coj ntawm qhov chaw yuav tsum suav nrog cov nqi tsis ua haujlwm thiab kev ua raws li kev pov hwm; kev ua tsis tiav ntawm lub nozzle puas tsuaj thaum muaj hluav taws tuaj yeem ua rau muaj kev poob nyiaj ntau lab daus las hauv kev lag luam tsis muaj kev pov hwm thiab kev rau txim hnyav.
Cov lus txhais tseem ceeb ntawm lub qhov dej tua hluav taws
Yuav kom paub meej txog cov khoom siv, cov engineers yuav tsum nkag siab txog cov ntsiab lus hydraulic uas tswj kev ua haujlwm ntawm lub nozzle. Cov qauv siab ua haujlwm feem ntau yog txij li 75 PSI txog 100 PSI rau cov kab tuav txheem, tab sis cov khoom siv hnyav thiab cov saib xyuas kev lag luam tuaj yeem tshaj 250 PSI. Cov khoom siv yuav tsum muaj lub zog tensile txaus los tiv taus cov kev ntxhov siab no yam tsis muaj kev cuam tshuam me me.
Cov nqi ntws yog ntsuas hauv Gallons Per Feeb (GPM), nrog rau cov qauv siv tooj dag hauv kev lag luam xa cov dej ntws calibrated ntawm 60 thiab 125 GPM. Cov txheej txheem degradation ntawm cov khoom siv, xws li galvanic corrosion thiab cavitation, yog cov lus txhais tseem ceeb rau cov pab pawg yuav khoom. Cavitation tshwm sim thaum cov kua dej hauv zos poob qis dua qhov vapor pressure, ua rau muaj kev tawg me me uas tuaj yeem ua rau cov khoom siv nozzle qis dua ntawm tus nqi ntawm 0.1mm txog 0.5mm txhua xyoo, ua rau cov qauv ntws tsis zoo.
Vim Li Cas Tooj Liab Yog Cov Khoom Siv Hluav Taws Xob Txheem
Tooj dag tau tswj hwm nws txoj haujlwm ua tus qauv kev lag luam tsis muaj kev sib cav rau cov taub dej tua hluav taws vim muaj kev sib npaug zoo ntawm cov khoom siv kho tshuab, kev tiv taus cua sov, thiab kev lag luam tsim khoom. Cov khoom siv feem ntau yog cov hlau sib xyaw ua ke ntawm tooj liab thiab zinc, tsim tshwj xeeb los tiv taus qhov nyuaj ntawm cov kua dej ceev ceev thiab kev poob siab kub heev.
Kev tiv thaiv hluav taws kub hauv kev lag luamcov txheej txheem vam khom ntau rau cov hlau tooj dag txheem xws li C36000 (Free-Cutting Brass) thiab C46400 (Naval Brass). Cov khoom sib xyaw ua ke no muab kev sib xyaw ua ke ntawm qhov ceev, kev ua kom nws tus kheej lubrication, thiab kev ruaj khov ntawm cov qauv uas cov polymers tsim thiab cov hlau sib dua tsis tuaj yeem ua dua hauv cov ntawv thov kev nyab xeeb rau lub neej.
Corrosion kuj thiab dezincification tswj
Cov tooj daj txheem muaj kwv yees li 61.5% tooj liab thiab 35.5% zinc. Hauv cov chaw uas muaj cov tshuaj lom neeg dej ntau, dezincification - ib qho txheej txheem uas zinc xaiv leaches los ntawm cov hlau sib xyaw, tawm hauv cov qauv tooj liab tsis muaj zog, porous - ua rau muaj kev pheej hmoo ntawm kev puas tsuaj loj heev. Qhov kev puas tsuaj no raug nrawm dua hauv cov dej ntws nrog cov chloride concentration ntau dua 250 mg / L.
Txhawm rau tiv thaiv qhov tsis muaj zog no, cov taub dej tua hluav taws zoo tshaj plaws siv cov hlau tooj dag Dezincification Resistant (DZR). Cov qib tshwj xeeb no suav nrog cov khoom me me ntawm arsenic (0.02% txog 0.10%) lossis antimony kom ruaj khov cov zinc matrix. Kev hloov kho hlau no ua kom lub taub dej tswj tau nws cov qauv thiab lub peev xwm tuav lub siab txawm tias thaum raug dej hauv nroog lossis cov pas dej tsis kho tau ntau xyoo.
Lub zog siab, kev tiv taus kev cuam tshuam, thiab kev kam rau cua sov
Qhov ruaj khov ntawm tooj dag yog qhov tseem ceeb rau cov tshuab tswj kev kub siab. Cov hlau tooj dag feem ntau siv rau hauv kev tsim lub nozzle muaj lub zog tensile txij li 310 MPa txog 450 MPa, muab qhov kev nyab xeeb tshwj xeeb tiv thaiv kev poob siab hydraulic thiab cov teebmeem dej hammer uas feem ntau tshaj 300 PSI. Lub zog tensile no tiv thaiv kev nthuav dav lossis tawg ntawm lub cev nozzle thaum lub sijhawm pib nias.
Kev tiv taus kev cuam tshuam thiab kev ua kom sov yog cov yam ntxwv tseem ceeb sib npaug. Cov qauv NFPA feem ntau xav kom cov nozzles kom dim ntau qhov poob rau ntawm cov pob zeb los ntawm qhov siab txog li 6 feet (1.8 meters). Txawm hais tias cov khoom txhuas yuav lwj thiab deform - tam sim ntawd cuam tshuam rau cov baffles ntws sab hauv lossis kev sib koom tes ntawm cov xov - tooj dag nqus cov zog kinetic nrog qhov sib txawv me me. Ntxiv mus, tooj dag muaj qhov chaw yaj ntawm kwv yees li 900 ° C txog 940 ° C, ua kom lub nozzle yuav tsis yaj lossis deform thaum lub sijhawm flashover, tsis zoo li txhuas uas liquefies ntawm tsuas yog 660 ° C.
Kev siv tshuab tau, kev ruaj khov ntawm qhov ntev, thiab kev kho tau
Los ntawm kev pom ntawm kev tsim khoom, C36000 cov tooj dag txiav dawb tuav qhov ntsuas kev ua haujlwm thoob ntiaj teb ntawm 100%. Qhov no tso cai rau CNC machining chaw kom ua tiav qhov kev kam rau siab nruj heev, feem ntau hauv ± 0.001 nti. Qhov kev ua kom raug zoo li no yog qhov tseem ceeb rau kev ua cov qauv National Standard Thread (NST) nyuaj thiab cov kab ntws sab hauv, yog li txo cov kua dej turbulence thiab ua kom cov dej ntws ntau tshaj plaws.
Qhov ruaj khov ntawm cov tooj dag ncaj qha txhais tau tias kev kho tau zoo thiab kev ua haujlwm tau zoo. Nws cov yam ntxwv uas nws tus kheej ua rau nws tus kheej lubricating tiv thaiv cov xov galling - ib qho teeb meem uas feem ntau qhov kev sib txhuam ua rau micro-welding ntawm cov chaw sib txuas, feem ntau pom thaum txuas cov khoom stainless hlau hauv qab kev ntxhov siab. Tsis tas li ntawd, cov nozzles tooj dag muab kev kho tau zoo dua; cov xov puas feem ntau tuaj yeem raug caum thiab kho dua tshiab siv cov kais txheem, ntev lub neej kev pabcuam thiab txo cov nuj nqis kho tag nrho.
Cov Khoom Siv Hluav Taws Xob thiab Cov Khoom Siv Hluav Taws Xob Lwm Hom
Txawm hais tias tooj dag tseem yog tus qauv tseem ceeb rau kev siv hnyav, kev tsim kho hluav taws niaj hnub no feem ntau ntsuas cov khoom siv lwm yam los ua kom zoo dua cov kev ua tau zoo tshwj xeeb. Kev nkag siab txog qhov zoo thiab qhov tsis zoo ntawm cov khoom siv no yog qhov tseem ceeb rau kev teev cov khoom siv kom raug rau cov chaw ua haujlwm tshwj xeeb.
Cov ntaub ntawv sib piv rau kev xaiv lub nozzle
Cov matrix hauv qab no qhia txog cov kev ntsuas kev ua tau zoo tseem ceeb ntawm tooj dag piv rau lwm cov ntaub ntawv siv hauvkev tsim cov dej tua hluav taws.
| Khoom siv | Lub zog Tensile (MPa) | Melting Point (°C) | Tus Nqi Sib Piv | Kev Tiv Thaiv Galling | Kev Tsim Nyog Rau Marine |
|---|---|---|---|---|---|
| Tooj dag (C36000) | 310 – 450 | 900 – 940 | 1.0x (Txoj kab pib) | Zoo heev | Nruab nrab |
| Txhuas Extruded | 275 – 310 | 660 | 0.7x | Zoo | Txom nyem |
| Hlau tsis xeb (316L) | 480 – 620 | 1370 – 1400 | 2.5x | Txom nyem | Zoo heev |
| Marine Bronze | 240 – 380 | 850 – 1000 | 1.8x | Zoo heev | Zoo heev |
| Cov Khoom Siv Uas Muaj Iav Puv | 110 – 150 | 220 – 260 | 0.4x | Tsis muaj | Txom nyem |
Qhov twg tooj dag ua tau zoo dua lwm cov ntaub ntawv
Tooj dag yeej ib txwm ua tau zoo dua lwm cov ntaub ntawv hauv cov chaw ua lag luam hnyav, cov chaw tua hluav taws hauv nroog, thiab cov chaw siv kav dej ua lag luam uas cov khoom siv raug kev tuav tsis zoo thiab khaws cia ntev. Nws cov khoom siv nws tus kheej ua rau txo qhov kev pheej hmoo ntawm kev tawg xov, qhov zoo dua thaum cov neeg tua hluav taws yuav tsum txuas cov kav dej thiab cov khoom siv sai sai hauv qab kev ntxhov siab ntawm lub hlwb thiab lub cev.
Qhov ntom ntawm tooj dag (kwv yees li 8.4 txog 8.7 g/cm³) muab qhov zoo ergonomic uas feem ntau tsis quav ntsej hauv cov ntawv thov ruaj khov lossis hnyav. Qhov hnyav no ua rau lub zog hydraulic co thiab cavitation suab nrov, muab cov neeg teb xov tooj nrog lub zog tiv thaiv nozzle ruaj khov dua thiab kwv yees tau thaum tso dej tawm ntawm qhov ceev tshaj 100 feet ib ob. Qhov kev ruaj khov no nyuaj rau ua tiav nrog cov polymers ultra-lightweight lossis cov txhuas nyias-phab ntsa.
Thaum twg yuav tsum xaiv txhuas, hlau tsis xeb, tooj liab, lossis composite
Txawm hais tias tooj dag yog cov khoom siv tseem ceeb, qee qhov kev txwv kev ua haujlwm kuj tseem ua rau siv lwm cov khoom siv. Cov txhuas uas tau anodized nyuaj yog qhov kev xaiv zoo tshaj plaws rau kev tua hluav taws hauv hav zoov thiab hav zoov, qhov chaw uas cov neeg ua haujlwm yuav tsum nqa cov khoom siv hla thaj chaw siab rau kev deb ntev; lub nozzle txhuas hnyav kwv yees li ib feem peb ntawm nws cov tooj dag sib npaug, txo qhov qaug zog.
Cov hlau tsis xeb (feem ntau yog 316L) yuav tsum tau siv rau hauv cov chaw ua roj av uas muaj xeb heev lossis cov chaw ua haujlwm hauv hiav txwv uas raug cov kua qaub hnyav lossis cov tshuaj tsuag ntsev tas li ntau dua li cov peev xwm tiv thaiv ntawm cov tooj dag DZR txheem. Tooj liab (ib qho hlau sib xyaw ntawm tooj liab thiab tin) yog qhov yuav tsum tau ua rau cov ntawv thov hauv hiav txwv hnyav vim nws cov ntsiab lus zinc ze li xoom, tshem tawm cov kev pheej hmoo ntawm dezincification tag nrho. Thaum kawg, cov yas sib xyaw (polycarbonate lossis nylon puv iav) raug txwv rau kev siv hauv tsev qis lossis kev ua liaj ua teb me me uas qhov siab ua haujlwm tseem nyob hauv qab 75 PSI thiab kev txwv nyiaj txiag nruj tswj tus nqi ib chav nyob hauv qab $ 20.
Cov Lus Qhia Txog Lub Taub Hau Dej Tua Hluav Taws thiab Kev Tshawb Xyuas Kev Ua Raws Cai
Kev yuav lub taub dej tua hluav taws yuav tsum ua raws li cov qauv kev nyab xeeb thoob ntiaj teb thiab cov txheej txheem kev lees paub zoo. Cov neeg yuav khoom tsis tuaj yeem cia siab rau qhov pom ntawm cov khoom siv tooj dag xwb; lawv yuav tsum xyuas kom meej tias cov khoom xaiv tau ua tau raws li cov qauv kev ua tau zoo thiab cov lus qhia nruj ntawm cov hlau.
Yog tias tsis ua raws li cov lus qhia no thaum lub sijhawm yuav khoom, qhov no yuav ua rau koj yuav tau cov khoom siv tsis zoo uas tsis ua haujlwm raws li kev nyuaj siab, ua rau muaj kev phom sij rau kev nyab xeeb ntawm lub neej thiab ua rau cov cai pov hwm ntawm chaw tsis siv tau.
Cov qauv, kev ntsuas siab, cov xov, thiab cov qauv ntws
Lub Koom Haum Tiv Thaiv Hluav Taws Hauv Tebchaws (NFPA) 1964 Tus Qauv rau Cov Tshuaj Tsuag Ntsis tau teev cov qauv kev ua haujlwm zoo, suav nrog kev kuaj hydrostatic uas yuav tsum tau ua. Cov tshuaj tsuag uas ua raws li txoj cai yuav tsum tiv taus qhov siab hydrostatic uas tiv taus txog li 900 PSI yam tsis muaj kev tawg lossis kev hloov pauv mus tas li, thiab ua haujlwm zoo kawg nkaus ntawm lawv qhov siab ua haujlwm, feem ntau yog 100 PSI.
Cov lus qhia txog xov yuav tsum ua raws li NFPA 1963 lossis cov qauv hauv zos sib npaug, kom ntseeg tau tias muaj kev sib koom ua ke nrog cov dej hauv nroog thiab cov kev sib txuas hose uas twb muaj lawm (piv txwv li, NH, NST, lossis NPSH). Ntxiv mus, cov qauv ntws - xws li cov kwj deg ncaj nraim mus rau cov huab cua tiv thaiv dav dav ntawm 120 degrees - yuav tsum tau calibrated kom raug kom xa cov GPM tau teev tseg hauv qhov nruj ± 5% kev kam rau siab thoob plaws tag nrho cov qib siab.
Qib hlau tooj dag thiab qhov zoo ntawm kev tsim khoom
Qhov kev ua kom zoo ntawm cov hlau tooj dag yog qhov tseem ceeb ntawm kev tsim khoom zoo thiab lub neej ntev. Cov lus qhia txog kev yuav khoom yuav tsum qhia meej txog cov qib hlau uas siv tau, xws li C46400 (Naval Brass) rau kev tiv thaiv dej noo lossis C37700 rau cov khoom siv forged muaj zog heev. Kev hloov cov hlau zoo nrog cov tooj dag pheej yig, cov hlau txhuas muaj zog ua rau lub zog ntawm cov khoom tiav tsis zoo.
Cov txheej txheem tswj xyuas zoo ntawm lub chaw tsim khoom yuav tsum yuam kom kuaj xyuas cov khoom siv hluav taws xob los xyuas kom meej cov tshuaj lom neeg muaj pes tsawg leeg, xyuas kom cov zinc nyob hauv 35% txog 39% qhov txwv kom tiv thaiv kev tawg. Tsis tas li ntawd, cov neeg yuav khoom yuav tsum teev cov nqi porosity siab tshaj plaws rau cov nozzles tooj dag, feem ntau xav tau qhov tsis zoo ntawm qhov ntim tsawg dua 1% kom tiv thaiv kev xau me me thiab tawg thaum muaj kev ntxhov siab hydraulic siab.
Kev tsim nyog ntawm tus neeg muab khoom thiab kev tswj hwm kev pheej hmoo ntawm kev yuav khoom
Kev tswj hwm kev pheej hmoo ntawm kev yuav khoom zoo yuav tsum tau ua kom cov neeg muag khoom muaj kev lees paub zoo ua ntej muab cov lus txib yuav khoom. Cov chaw tsim khoom yuav tsum tuav cov ntaub ntawv raug caiISO 9001: 2015cov ntawv pov thawj kev tswj xyuas zoo thiab muaj peev xwm muab EN 10204 Hom 3.1 Cov Ntawv Qhia Txog Kev Ntsuas Khoom Siv (MTRs) rau txhua pawg ntau lawm, kom ntseeg tau tias muaj kev taug qab tag nrho los ntawm cov khoom siv raw mus rau lub nozzle tiav.
Thaum tsim cov saw hlau rau cov nozzles tooj dag lossis OEM, cov pab pawg yuav khoom yuav tsum kwv yees qhov tsawg kawg nkaus ntawm kev txiav txim (MOQs) txij li 500 txog 1,000 units rau cov khoom sib dhos ua los ntawm kev cai, nrog rau lub sijhawm ua khoom ntau lawm feem ntau yog 8 txog 12 lub lis piam. Kev ua cov kev tshuaj xyuas ua ntej xa khoom los ntawm cov neeg thib peb ywj pheej (siv cov koom haum xws li SGS lossis Bureau Veritas) txo qhov kev pheej hmoo ntawm kev tau txais cov khoom tsis ua raws li txoj cai uas yuav ua tsis tiav thaum muaj xwm txheej ceev.
Yuav Ua Li Cas Cov Neeg Yuav Khoom Yuav Tsum Xaiv Lub Nozzle Dej Hluav Taws Xob Tooj Liab
Xaiv qhov zoo tshaj plawslub qhov dej hluav taws tooj dagyuav tsum muaj ib txoj hauv kev uas ua kom sib npaug ntawm cov peev txheej pib thiab kev ntseeg siab rau kev ua haujlwm mus sij hawm ntev. Cov pab pawg yuav khoom yuav tsum daws cov teeb meem nyuaj hauv kev tsim kho kom ntseeg tau tias muaj kev nyab xeeb siab tshaj plaws, ua raws li txoj cai, thiab rov qab los ntawm kev nqis peev.
Los ntawm kev tshem tawm ntawm kev yuav khoom raws li cov khoom lag luam thiab kev siv txoj kev npaj yuav khoom uas tsom mus rau lub neej tas mus li, cov koom haum tuaj yeem txo lawv cov kev saib xyuas mus sij hawm ntev thaum txhim kho lawv txoj kev npaj tua hluav taws tag nrho.
Daim ntawv txiav txim siab rau tus nqi, tus nqi siv tas mus li, thiab kev ua tau zoo
Cov ntawv txiav txim siab hauv qab no muab ib lub moj khaum rau kev sib phim cov kev xaiv hlau tooj dag nrog cov chaw thov tshwj xeeb, lub neej voj voog xav tau, thiab kev txiav txim siab OPEX.
| Ib puag ncig ntawm daim ntawv thov | Cov Khoom Siv Tooj Liab Pom Zoo | Lub Hom Phiaj Ua Haujlwm Siab | Lub Neej Xav Tau | Tag Nrho Cov Nqi ntawm Kev Muaj Tswv (TCO) Qhov Cuam Tshuam |
|---|---|---|---|---|
| Lub Tsev Lag Luam Sawv Ntsug | C36000 (Txiav Dawb) | 100 PSI | 15 - 20 Xyoo | Lub hauv paus OPEX |
| Kev Lag Luam Hnyav / Kev Tsim Khoom | C37700 (Forging Brass) | 150 – 200 PSI | 10 – 15 Xyoos | Txuag tau 30% dua li Aluminium |
| Cov Chaw Nyob Ntug Dej Hiav Txwv / Marine | C46400 (Tooj Nkoj Tub Rog) | 100 – 150 PSI | 12 – 18 Xyoo | Txuag tau 50% dua li cov tooj dag txheem |
| Cov Tshuab Dej Muaj Chloride Ntau | DZR Tooj Liab (Arsenic Inhibited) | 100 PSI | 15+ Xyoo | Tiv thaiv cov nqi ua tsis tiav loj heev |
Cov kauj ruam xaiv ua tau zoo rau cov pab pawg yuav khoom
Cov pab pawg yuav khoom yuav tsum ua cov txheej txheem xaiv plaub kauj ruam kom paub tseeb tias lub nozzle ua haujlwm zoo tshaj plaws. Ua ntej, ua qhov kev tshuaj xyuas tag nrho ntawm qhov chaw dej, ntsuas cov pH thiab cov chloride concentration kom paub seb tus qauv C36000 tooj dag puas txaus lossis yog xav tau tooj dag DZR tshwj xeeb (pom zoo heev rau kev raug cov chloride ntau dua 200 mg / L tas li).
Qhov thib ob, xyuas kom meej tias cov xov sib xws nrog lub hauv paus ntawm thaj chaw hauv zos kom tiv thaiv kev ncua sijhawm xa tawm. Qhov thib peb, xam qhov nrawm thiab lub zog siab uas xav tau - qhia meej, piv txwv li, lub nozzle ntws tas li uas tau ntsuas meej ntawm 95 GPM ntawm 100 PSI. Thaum kawg, thov cov ntaub ntawv sim ua haujlwm los ntawm lub chaw tsim khoom, suav nrog daim ntawv pov thawj xeem poob 6-foot thiab cov ntawv qhia txog kev ua haujlwm ntawm 1,000-cycle valve, los xyuas kom meej tias lub zog ntawm cov pob valve sab hauv thiab cov txheej txheem tswj kev ntws.
Thaum tooj dag yog qhov kev xaiv khoom zoo tshaj plaws
Tooj dag tseem yog cov khoom siv uas tsis muaj kev sib cav xaiv rau cov chaw tsim khoom hnyav, cov kav dej hauv tsev lag luam (Chav Kawm I thiab Chav Kawm III), thiab kev siv hluav taws hauv nroog uas xav tau ntau. Hauv cov chaw no, cov khoom siv tua hluav taws yuav nyob twj ywm tsis ua haujlwm tau ntau xyoo tab sis yuav tsum ua haujlwm zoo tshaj plaws ntawm lub peev xwm siab tshaj plaws thaum lub sijhawm ceeb toom.
Qhov kev sib xyaw ua ke tshwj xeeb ntawm lub zog tensile siab (txog li 450 MPa), kev tiv thaiv thermal tsis muaj qhov sib piv (tiv taus qhov kub thiab txias txog li 900 ° C), thiab kev tiv thaiv tag nrho rau cov xov galling ua kom lub taub dej tua hluav taws tooj dag muab lub neej ua haujlwm txhim khu kev qha feem ntau tshaj 15 txog 20 xyoo. Rau cov chaw ua haujlwm uas muab kev nyab xeeb rau lub neej, kev ua raws li txoj cai nruj, thiab kev saib xyuas tsawg kawg nkaus, tooj dag qib siab muab cov kev daws teeb meem engineering uas tsis muaj qhov sib piv thiab sim sijhawm.
Cov Ntsiab Lus Tseem Ceeb
- Cov taub dej tua hluav taws feem ntau muab kev pabcuam 15 txog 20 xyoo hauv cov chaw ua haujlwm hnyav, txo qhov zaus hloov pauv piv rau cov khoom siv qis dua uas tsuas yog kav ntev li 3 txog 5 xyoos.
- Cov pab pawg yuav khoom yuav tsum soj ntsuam tag nrho tus nqi ntawm kev muaj vim tias tus nqi pib ntawm lub nozzle tsuas yog suav txog 15% txog 20% ntawm tus nqi siv tas mus li.
- Cov taub hau txheem feem ntau ua haujlwm ntawm 75 txog 100 PSI, thaum cov ntawv thov saib xyuas kev lag luam tuaj yeem tshaj 250 PSI, ua rau lub zog ntawm cov khoom siv thiab kev sib txuas ntawm cov xov tseem ceeb heev.
- Cov hlau tooj dag xws li C36000 thiab C46400 muab qhov sib npaug ntawm kev tiv taus corrosion, kev siv tshuab, qhov ceev, thiab kev ruaj khov rau cov khoom siv kev nyab xeeb rau lub neej.
- Cavitation thiab corrosion tuaj yeem ua rau cov khoom siv nozzle qis dua lwj los ntawm 0.1 hli txog 0.5 hli ib xyoos, uas ua rau cov dej ntws thiab cov qauv tsuag tsis zoo.
Cov Lus Nug Feem Ntau
Vim li cas cov taub dej tua hluav taws uas siv tooj dag thiaj li nyiam dua li cov qauv txhuas?
Tooj dag muaj zog tiv taus xeb zoo dua, cov xov ruaj khov dua, thiab siv tau ntev dua hauv qhov chaw nyuaj. Txawm hais tias nws kim dua 30% txog 40% dua li txhuas, feem ntau nws siv tau 15 txog 20 xyoo piv rau 3 txog 5 xyoos rau cov khoom qis dua.
Lub taub dej tua hluav taws yuav tsum tiv taus qhov siab ua haujlwm li cas?
Cov tshuab nozzles uas siv tes ua feem ntau ua haujlwm li ntawm 75 txog 100 PSI, thaum cov tshuab saib xyuas kev lag luam hnyav tuaj yeem ua haujlwm tshaj 250 PSI. Cov khoom siv nozzle yuav tsum tiv taus kev hloov pauv, kev puas tsuaj ntawm cov xov, thiab kev pheej hmoo tawg hauv qab cov hydraulic loads no.
Cov tooj dag txo cov nqi siv rau cov neeg yuav khoom tiv thaiv hluav taws hauv kev lag luam li cas?
Tus nqi yuav thawj zaug tsuas yog li ntawm 15% txog 20% ntawm cov nqi siv rau lub neej. Cov nozzles tooj dag txo qhov zaus hloov pauv, kev ua haujlwm txij nkawm, kev pheej hmoo ntawm lub sijhawm tsis ua haujlwm, thiab kev txhawj xeeb txog kev ua raws li txoj cai, ua rau lawv tsim nyog rau kev siv hauv kev lag luam thiab kev siv hauv dej hiav txwv mus sij hawm ntev.
Cov hlau tooj dag twg feem ntau siv rau cov taub dej tua hluav taws?
Cov kev xaiv uas siv ntau suav nrog C36000 tooj dag txiav dawb thiab C46400 tooj dag tub rog dej hiav txwv. Cov hlau no muaj kev siv tshuab ua ke, kev tiv thaiv xeb, qhov ceev, thiab kev ruaj khov ntawm lub tshuab, ua rau lawv tsim nyog rau cov khoom siv tua hluav taws uas xav tau ntau.
Puas yog xeb tuaj yeem cuam tshuam rau kev ua haujlwm ntawm lub nozzle tsuag?
Yog. Kev xeb, cavitation, thiab kev hnav xov tuaj yeem ua rau lub geometry sab hauv ntawm lub nozzle puas tsuaj, txo qhov tseeb ntawm kev ntws thiab kev sib xws ntawm cov qauv tsuag. Hauv cov xwm txheej hnyav, cavitation erosion yuav tshem tawm 0.1 hli txog 0.5 hli ntawm cov khoom txhua xyoo.
Lub sijhawm tshaj tawm: Lub Rau Hli-22-2026