Yog vim li cas limonene ua balloons tawg? "Nws muaj peev xwm hais tias cov txheej txheem roj hmab o tuaj ntawm no."
Cov kws tshaj lij tau tshaj tawm tias limonene yog ib hom olefin, thiab lub ntsiab monomers ntawm hluavtaws roj hmab yog ntau yam olefins. Lawv cov qauv zoo sib xws. Thaum ob qho tib si sib ntsib, limonene ua "solvent" kom o ntawm cov roj hmab.
"Thaum lub zais pa roj hmab yog ib feem ntawm cov organic teeb meem xws li limonene, ib feem ntawm cov roj hmab no yuav o thiab nws lub zog yuav raug txo. Cov roj hmab yuav tsis sib luag thiab tawg nyob rau hauv qhov kev txiav txim ntawm cov huab cua sab hauv ntawm lub zais pa. Lub sijhawm no, cov pa roj puv hauv yuav raug tso tawm hauv lub sijhawm luv luv, nws tawg tawm ntawm qhov ua txhaum cai hauv ib lub sijhawm - lub zais pa tawg. "
Nco ntsoov tias nws tawg! Tsis yog qhov tawg uas ua ke nrog lub suab, lub teeb, cua sov thiab lwm yam tshuaj lom neeg hnyav!
Uh... Txawm hais tias nws tsis yog qhov tawg, nws txaus ntshai heev los saib cov xov xwm. Yuav ua li cas yog peb kov lub zais pa tom qab noj txiv kab ntxwv ...
Hom o tshwm sim no kuj yuav tshwm sim thaum siv phaj kub exchangers. Txawm hais tias nws yuav tsis tawg nyob rau hauv ib txwm muaj xwm txheej, nws tseem yuav ua rau kom tawg ntawm lub phaj kub exchanger thiab ua rau muaj kev puas tsuaj rau peb cov khoom thiab lub neej.
Txhua leej txhua tus paub tias phaj kub exchangers muaj cov yam ntxwv ntawm high tshav kub exchanger efficiency, me me cov ntaub ntawv txaus tsis kam, compact qauv, rhiab kub tswj, zoo ua hauj lwm yooj, yooj yim los ua ke thiab disassembly, thiab ntev kev pab cuam lub neej. Tam sim no lawv yog cov ua haujlwm siab tshaj plaws thiab txuag hluav taws xob hloov hluav taws xob. khoom siv. Nws tau siv dav hauv ntau qhov chaw xws li metallurgy, mining, roj av, tshuaj lom neeg kev lag luam, hluav taws xob, tshuaj, khoom noj khoom haus, tshuaj fiber ntau, textile, papermaking, shipbuilding thiab central cua sov. Tsis tas li ntawd, muaj ntau thiab ntau hom phaj kub exchangers, lawv cov kev ua tau zoo thiab zoo dua, thiab lawv daim ntawv thov ntau tau dav thiab dav.
Roj hmab sealing gasket yog ib qho tseem ceeb heev thiab xav tau ib feem ntawm phaj kub exchanger.
Lub gasket yuav tsum tsis tsuas yog kaw qhov nruab nrab ntawm kev xau mus rau ib puag ncig sab nraud, tab sis kuj tiv thaiv kev sib xyaw ntawm cov khoom siv hluav taws xob.
Yog hais tias lub gasket swells thiab poob nws elasticity, lub tshav kub exchanger yuav tsis ua hauj lwm zoo.
Ua ntej, cia peb nkag siab txog kev tawg thiab o ntawm cov roj hmab
Dissolution thiab o ntawm cov roj hmab
Unvulcanized roj hmab yog soluble nyob rau hauv cov kuab tshuaj nrog zoo solubility tsis. Rau cov roj hmab vulcanized, txij li cov tshuaj sib txuas txuas txuas cov roj hmab macromolecules rau hauv cov qauv kev sib txuas ntawm peb sab, nws tsuas tuaj yeem nqus cov kuab tshuaj hauv cov kuab tshuaj thiab maj mam nthuav thiab ncav cuag tus nqi sib npaug (qhov siab tshaj plaws o). Qhov tshwm sim no hu ua "o" ntawm roj hmab. Qhov ntim o tuaj yeem ncav cuag ntau zaus ntawm cov roj hmab ntim. thiab 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 qhov sib txuas ceev. Thaum nqus cov kuab tshuaj, qhov sib txuas sib txuas ntawm cov roj hmab vulcanized kuj tseem nthuav tawm los tsim kom muaj kev sib zog ua kom muaj zog uas nyem cov kuab tshuaj tawm ntawm lub network. Thaum lub siab ntawm cov kuab tshuaj diffusion thiab nkag mus rau qhov sib npaug ntawm elastic contraction quab yuam ntawm tus ntoo khaub lig-txuas network, qhov sib npaug o tuaj txog.
Txij li thaum qhov tob ntawm cov kua rau hauv cov roj hmab yog qhov ua haujlwm ntawm lub hauv paus square ntawm lub sijhawm sib cuag, txawm tias cov roj hmab tsis muaj qhov tshwj xeeb tsis kam rau cov kua nws tiv tauj, lossis cov khoom siv roj hmab nws tus kheej muaj qee qhov ntim, nws yuav muaj qee yam cuam tshuam. ntawm nws lub neej kev pab.
Yog vim li cas rau o ntawm roj hmab sealing gasket ntawm phaj kub exchanger
1. Vim yog qhov nruab nrab, qhov sib txawv ntawm qhov kub thiab txias, qhov sib txawv ntawm qhov tseem ceeb, thiab cov xov xwm sib txawv yuav tsum tau siv cov roj hmab gaskets ntawm cov khoom sib txawv. Piv txwv li, high-temperature tshav kub hloov roj yuav tsum tau acid thiab alkali-resistant NBR strips, dej EPDM strips txaus. Yog tias cov roj hloov pauv kub kub yuav tsum siv EPDM strips, o ntawm cov strips yog qhov yuav tsum tau zam. Yog li ntawd, cov ntaub ntawv gasket tsim nyog yuav tsum raug xaiv raws li cov yam ntxwv sib txawv ntawm qhov nruab nrab.
2. Kev xaiv tus neeg saib xyuas tsis raug. Vim tias cov phaj kub hloov pauv feem ntau muaj qhov kub hloov pauv kub (tshwj xeeb tshaj yog chav dej sib pauv) thiab kev sib pauv hluav taws xob siab, lawv muaj peev xwm ua kom ntsuas tau. Nyob rau tib lub sij hawm, lub internal ncig pores ntawm lub phaj kub exchanger yog me me. Tom qab scaling, lub sab hauv channel cross-section yuav me me los yog txawm blocked, ua rau ib tug txo nyob rau hauv lub tshav kub exchanger efficiency ntawm lub phaj kub exchanger, yog li cuam tshuam rau cov khoom ib txwm muaj thiab kev ruaj ntseg ntawm cov khoom. Lub phaj kub exchanger yuav tsum tau muab tshuaj ntxuav tsis tu ncua kom tshem tawm cov av kom ntseeg tau tias muaj kev sib pauv cua sov thiab ib txwm tsim cov phaj kub exchanger. Cov additives ntawm ntau cov tshuaj ntxuav tu muaj polyetheramine (PEA), ib yam tshuaj uas ua rau cov av yaj. Nws muaj zog heev detergency thiab solubility, thiab tuaj yeem yooj yim ua rau cov roj hmab sealing gasket kom o. Nco ntsoov thaum xaiv tus neeg saib xyuas tu, ua ntej xaiv ib qho uas tsis muaj teeb meem rau cov roj hmab foob.
Roj hmab gaskets siv hauv cov kuab tshuaj organic xws li benzene, ketone, thiab ether yog qhov ua rau o, hnyav nce, softening, thiab stickiness, ua rau sealing tsis ua hauj lwm. Feem ntau, nws tsis tuaj yeem siv tau yog tias qhov o ntawm qib siab tshaj 30%.
Thaum cov roj hmab sealing gasket swells, nws kuj poob nws thawj lub cev thiab tshuaj lom neeg, tshwj xeeb tshaj yog nws lub cev. Nws txhais tau hais tias cov qauv ntawm cov roj hmab hloov pauv (kev laus) thiab poob lub cev. Thaum nws raug tshem tawm ntawm qhov hnyav ib puag ncig, qhov o tsis tuaj yeem rov qab los, thiab cov roj hmab sealing gasket ua tsis raug thiab siv tsis tau!
