Nyob rau hauv kev siv cov phaj kub exchanger kuj yuav tshwm sim nyob rau hauv xws li ib tug yaj tshwm sim, txawm hais tias qhov teeb meem dav dav yuav tsis tawg, tab sis nws tseem yuav ua rau lub phaj kub exchanger to peb ntau lawm thiab lub neej txaus ntshai.
Peb txhua tus paub tias lub phaj kub hloov pauv, nrog rau kev hloov pauv ntawm cov cua sov siab, cov khoom ntws tsis zoo yog qhov me me, cov qauv compact, rhiab kub tswj, kev ua haujlwm yooj yim, yooj yim rau nruab thiab rhuav tshem, kev pab lub neej ntev thiab lwm yam, nws yog qhov siab tshaj plaws. high-efficiency thiab lub zog txuag hluav taws xob hloov khoom siv. Nws tau siv dav hauv metallurgy, mining, roj av, tshuaj lom neeg kev lag luam, hluav taws xob fais fab, tshuaj, zaub mov, tshuaj fiber ntau, textile, ntawv, nkoj thiab hauv nruab nrab cua sov thiab lwm yam kev lag luam. Thiab ntau thiab ntau hom phaj kub exchanger, kev ua tau zoo dua thiab zoo dua, daim ntawv thov ntau thiab ntau dua. Roj hmab sealing gasket yog phaj kub exchanger yog ob qho tib si tseem ceeb heev, tab sis kuj yuav tsum tau xav tau qhov chaw. Gasket tsis tsuas yog kaw qhov nruab nrab kom nws tsis txhob xau mus rau sab nraud ib puag ncig, tab sis kuj los tiv thaiv cov cua sov nruab nrab ntawm intermixing. Yog hais tias lub gasket zoo li yaj thiab poob nws elasticity, nws yuav ua rau lub tshav kub exchanger yuav tsis ua hauj lwm ib txwm.
Terminology
Dissolution thiab o ntawm cov roj hmab
Cov roj hmab Unvulcanized tuaj yeem yaj hauv cov kuab tshuaj uas muaj cov yam ntxwv zoo sib xws. Rau cov roj hmab vulcanized, vim muaj tshuaj lom neeg sib txuas ntawm cov roj hmab macromolecules txuas rau hauv cov qauv mesh peb sab, yog li hauv cov kuab tshuaj tsuas tuaj yeem nqus cov kuab tshuaj maj mam nthuav dav thiab ncav cuag tus nqi sib npaug (qhov siab tshaj plaws o). Qhov tshwm sim no yog hu ua roj hmab "o". Lub ntim tom qab o tuaj yeem ncav cuag ntau zaus ntawm cov roj hmab ntim. Qhov no yog nrog los ntawm ib tug poob ntawm mechanical zog. Qhov siab tshaj plaws o ntawm cov roj hmab vulcanized muaj feem xyuam rau nws cov crosslink ceev. Nyob rau hauv kev nqus ntawm cov kuab tshuaj, vulcanized roj hmab crosslinked network kuj swelled thiab tsim cov kuab tshuaj yuav extruded tawm ntawm lub network ntawm elastic contraction quab yuam, thaum cov kuab tshuaj diffusion infiltration siab thiab crosslinked network ntawm elastic contraction quab yuam yog sib npaug, uas yog, mus txog. qhov o equilibrium. Raws li qhov tob ntawm cov kua rau hauv cov roj hmab yog qhov ua haujlwm ntawm lub hauv paus square ntawm lub sijhawm sib cuag, yog li ntawd, txawm tias cov roj hmab ntawm cov kua hauv kev sib cuag nrog tsis muaj peev xwm tshwj xeeb impedance, lossis cov khoom siv roj hmab nws tus kheej muaj qee qhov ntim, tab sis kuj ntawm nws cov kev pab cuam lub neej yuav muaj tej yam cuam tshuam. Qhov tseeb, kev sib cais ntawm lub phaj kub exchanger roj hmab sealing gasket zoo li lub zais pa sib ntsib ib lub txiv kab ntxwv tev.
Phaj kub exchanger roj hmab sealing gasket o ua rau
1, qhov ua rau ntawm qhov nruab nrab Kev ua haujlwm ntawm qhov nruab nrab tsis yog qhov kub thiab txias, tsis yog qhov sib npaug ntawm cov concentration, tsis yog tib lub nruab nrab yuav tsum tau siv cov khoom sib txawv ntawm cov roj hmab gasket, xws li kub kub thermal roj yuav tsum tau siv cov kua qaub thiab alkali NBR roj hmab sawb, dej rau EPDM roj hmab sawb tuaj yeem ua tau, yog tias kub kub thermal roj yuav tsum siv EPDM roj hmab sawb, ces cov roj hmab strip o uas tsis tuaj yeem zam tau, thiab yog li ntawd yuav tsum tau ua raws li kev tshaj tawm ntawm cov yam ntxwv sib txawv ntawm kev xaiv cov khoom siv gasket uas tsim nyog. . Yog li ntawd, nws yuav tsum tau ua raws li cov yam ntxwv sib txawv ntawm qhov nruab nrab los xaiv cov khoom siv gasket uas tsim nyog.
2, kev xaiv tsis raug ntawm cov neeg ua haujlwm tu vim lub phaj kub hloov pauv kub feem ntau yog siab dua (tshwj xeeb tshaj yog vapor pauv), thiab nws cov hluav taws xob hloov pauv tau siab, yog li nws yooj yim heev los ntsuas. Nyob rau tib lub sij hawm phaj kub exchanger sab hauv kev ncig aperture yog me me, tom qab scaling lub internal channel cross-section yuav me me los yog txawm blocked, uas ua rau lub phaj kub exchanger tshav kub hloov efficiency yog txo, yog li cuam tshuam rau cov khoom ib txwm muaj thiab cov cuab yeej muaj kev ruaj ntseg. Phaj kub exchanger yuav tsum tsis tu ncua ntxuav chemically, tshem tawm cov av, thiaj li yuav xyuas kom meej tias lub phaj kub exchanger npaum tshav kub hloov thiab ib txwm tsim. Ntau tus neeg saib xyuas cov khoom siv ntxiv, uas muaj cov tshuaj tua kab mob hauv av polyether amine PEA, muaj kev huv huv thiab solubility, yooj yim ua rau cov roj hmab sealing gasket o tshwm sim. Nco ntsoov xaiv lub tshuab ntxhua khaub ncaws uas tsis muaj teeb meem rau cov roj hmab gasket.
phooj ywg tswv yim
Roj hmab gasket siv rau hauv benzene, ketone, ether thiab lwm yam organic solvents, yooj yim rau o, hnyav, softening, nplaum tshwm sim, ua rau lub foob tsis ua hauj lwm. Feem ntau, yog tias qhov mob o ntau tshaj 30%, nws tsis tuaj yeem siv.
Roj hmab gasket ib zaug o, nws tseem poob qhov qub lub cev thiab tshuaj lom neeg, tshwj xeeb tshaj yog lub cev. Txhais tau hais tias cov qauv ntawm cov roj hmab hloov pauv (kev laus), kev poob ntawm lub cev. Tos kom tawm hauv qhov hnyav ib puag ncig, o tsis tuaj yeem rov qab los, cov roj hmab gasket tsis siv, tsis tuaj yeem rov qab siv tau!
