2.3 kev txiav txim siab ntawm kev ntsuas diaphragm
Kev ntsuas Diaphragm yog tus tseem ceeb ywj feem ntawm cov nplaim taws flange flangePlawg Siab Transmitter, cuam tshuam nws cov lus teb, ntsuas kev ua yuam kev ntev, xoom txav, xoom drift, thiab lub sij hawm ntev. Yog li ntawd, kev tsim txoj kev txiav txim siab ntawm ntsuas Diaphragm yog qhov tseem ceeb heev, uas tau cuam tshuam hauv plaub yam hauv qab no:
Cov Khoom Xaiv Rau Kev Ntsuas Diaphragm
Kev ntsuas Diaphragm yuav tsum muaj elasticity thiab linear stability thaum lub sijhawm ua haujlwm, xav tau cov khoom siv hlau nrog ib qho siab. Qhov ntau dua cov kev txwv ywj ywj pheej ntawm cov khoom, qhov ntau dua nws lub zog elastic elastic cia thiab cov me dua nws cov teebmeem tsis-Elastic. Cov ntaub ntawv cov khoom siv rau ntsuas diaphragms suav nrog 316, Hastelloy c, tantalum, titanium, thiab monel alloy, txhua tus muaj cov khoom sib txawv thiab cov ntawv thov.
316L yog cov khoom siv dav tshaj plaws rau kev ntsuas diaphragms. Vim nws cov ntsiab lus carbon qis, nws tsis xav tau kev kho cua sov tom qab vuam. Nws yog feem ntau siv nyob rau hauv cov kev thov corrosive thiab huv si cov kev daws teeb meem xws li cov kua tshuaj acid, formic acid, thiab cov kev daws teeb meem kub.
Hastellloy C muaj ntau dua corrosion tsis kam dua 316L thiab feem ntau siv hauv kev sib xyaw nrog cov khoom siv hluav taws xob, suav nrog cov pa ntub dej \/ qhuav, nitric acid (<50°C), hydrochloric acid, sulfuric acid, phosphoric acid, acetic acid, hypochlorites, ferric chloride, copper chloride, caustic soda, seawater, and various organic acids.
TANTATUM yog ib qho kev sib tw dawb huv siab dawb huv, haum rau cov acrmanic ib puag ncig xws li inorganic acids, aforic acids, organic acids, cov tshuaj pleev organic, thiab corrosive gases.
Titanium yog lwm qhov zoo corrosion-resistant zoo li cov neeg muaj zog xws li nitric acid (ntau hom tshuaj pleev), cov tshuaj nplaum, thiab alkalis.
Monel alloy yog ib qho ntawm feem ntau tiv thaiv cov hlau rau cov khoom siv roj ntsha acid (thib ob tsuas yog rau cov khoom siv xeb-resistant hauv chlorides, seashater, thiab alkalis.
Thickness tsim ntawm ntsuas diaphragm
Kev ntsuas Diaphragm xa cov kev xa mus rau lub siab, thiab nws cov tuab yog qhov tseem ceeb rau kev txo qis kev kis tau ploj. Yog hais tias tus diaphragm yog yuag heev, nws yuav corrode lossis poob elasticity thiab linarity nyob rau lub sijhawm. Yog tias nws yog tuab heev, nce rigidity thiab sab hauv kev ntxhov siab tuaj yeem ua rau hysteresis los yog siab kis tau los. Txhawm rau kom muaj kev sib kis tau zoo, cov diaphragm tuab yuav tsum tau tswj hwm nruab nrab ntawm {0}}. 025 hli thiab 0.2 hli.
Txheem tej thaj chaw sib txawv sib txawv cov transmitters feem ntau siv 0. 08 hli diaphragm.
Kev siv hluav taws xob kub thiab cov tshuab nqus tsev siab yuav tsum muaj cov tuab tuab yuav tsum muaj cov tuab tuab tuab, feem ntau nyob ib ncig {2}}. 2 hli.
Vuam cov txheej txheem rau ntsuas diaphragm
Txoj kev ntsuas Diaphragm yog weldoming rau lub flange los tsim lub siab-sib khi cov kab noj hniav, yog li cov weld yuav tsum tau xau. Lub vuam zoo ncaj qha cuam tshuam rau lub toastage tus nqi. Cov kev vuam hlau ib txwm muaj liner vuam, arc vuam, thiab kev tawm tsam vuam.
Laser Vuam muaj lub zog muaj zog, txo cov wrinkles lossis kev puas tsuaj rau cov diaphragm. Txawm li cas los xij, nws taw tes-Beam vuam kev mus kom ze yuav ua rau nkag tsis tau lossis nkag mus rau cov dej xau.
Arc Vuam muab cov kev sib tw ntau dua thiab txhim khu kev qha helds txhim kho, tab sis nws cov hluav taws xob siab tuaj yeem hlawv los ntawm nyias diaphragms. Lub nplhaib thicker compression yog feem ntau ntxiv los pab cov vuam txheej txheem.
Kuj vuam yog feem ntau siv rau kev tshwj xeeb diaphragms. Nws tsim cov cua sov ntawm lub diaphragm ntawm sab hauv thiab cov flange sab nraud sab nraud, ua tiav kev ua tiav yam tsis ua rau lub diaphragm. Hom qauv no zoo tagnrho thaum kev tiv thaiv diaphragm sib txawv, tiv thaiv pitting corrosion ntawm Weld sib koom tes.
Qhov loj ntawm kev ntsuas diaphragm
Dhau li ntawm cov tuab, lub diaphragm lub taub tseem cuam tshuam rau kev sib kis tau. Cov txheej txheem siab ua rau lub diaphragm, thiab nws cov kab uas cuam tshuam rau lub zog ua kua.
Kev tsav tsheb loj dua txhim kho cov lus teb ntawm cov lus teb.
Ib qho kev tsav tsheb me me (tshwj xeeb tshaj yog rau cov neeg tsis muaj siab dua 10 kPA) degrades dynamic teb. Nce cov diaphragm lub cheeb no tuaj yeem txo qhov teeb meem no.
Txawm li cas los xij, cov diaphragm loj yog txwv los ntawm Flange txoj kev uas hla kev corrugation. Ntau dhau sizing tuaj yeem ua rau muaj teeb meem calibration thiab teeb tsa. Yog li ntawd, qee cov tuam ntxhab pom zoo:
Txav deb ntawm cov flanges me dua DN25 rau tej thaj chaw deb Flange cov transmitters siab.
Siv DN50 lossis loj flanges rau cov khoom lag luam nrog cov khoom hauv qab 40 kPA los xyuas kom muaj diaphragm txaus kom muaj kev txhim kho kom haum.
