Chaw nres tsheb
Thaum nres rau kev saib xyuas, cov kua dej ntawm ob sab ntawm cov khoom siv hluav taws xob yuav tsum tau kaw maj mam ua ntej, kom lub siab ntawm ob sab yuav poob qis rau tib lub sijhawm, thiab cov txiv ntoo nro yuav loosened tom qab tshem tawm cov kua seem. Thaum disassembling lub khi pas nrig, qhov kub thiab txias yuav tsum tau txo mus rau hauv chav tsev kub thiab sim ua kom cov kua seem seem ua ntej ua haujlwm.
Phaj ntxuav
Ntxuav thiab oxide-dawb phaj nto yog tsim nyog los xyuas kom meej nruj. Phaj tshav kub exchanger thermal efficiency txo qis, lub siab poob ntawm cov kev hloov tseem ceeb hauv fouling loj, yuav tsum tau disassembled, muab cov txhuam txhuam. Chav ua npuas dej tank nrog cov tshuaj ntxuav tes yog txoj hauv kev zoo kom tau txais qhov zoo ntawm qhov chaw zoo. Kev ntxuav, thawj phaj ntawm qhov kub ntawm 57-60oC (yog tias qhov kub ntawm 70-80oC zoo dua) hauv lye tank soak 48h, siv cov lye nyob rau hauv qhov kub siab kom cov sealant pasted rau ntawm lub phaj thiab scaling softened. Tom qab ntawd, daim ntawv phaj yog tsau rau hauv lub tank acid rau 2h, kom lub nplai reacts tag nrho nrog cov kua qaub. Tom qab qhov kawg ntawm kev ntub dej ntawm daim ntawv phaj, ntxuav cov txhuam hniav nrog txhuam txhuam ntawm lub platform, thiab txwv tsis pub siv cov txhuam hniav hlau.
Thaum ntxuav lub sealing groove, siv lub hau ntswj txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam nws, nws raug nquahu kom tshem tawm nws (los yog maj mam muab nws maj mam muab ci, tab sis maj mam muab ci rau hauv qab nrog hluav taws kub, tab sis tsis txhob ua kom cov hlau tsis muaj xim), thiab tom qab ntawd rub tawm. Siv acetone methyl kua los yog lwm yam ketone organic solvents los ntxuav lub sealing zawj.
Tom qab ntxuav thiab txhuam cov phaj thawj zaug yaug nrog dej, thiab tom qab ntawd qhuav nrog ib daim ntaub huv, lub phaj saum npoo tsis raug tso cai tawm ntawm cov khoom txawv teb chaws thiab cov fibers thiab cov khoom zoo li no. Cov ntsiab lus chlorine ion ntawm cov dej ntxuav yog tsawg dua lossis sib npaug li 25pp.
Tom qab kuaj xyuas thiab txiav txim siab cov khoom ua haujlwm tau raug ntxuav, cov phaj yuav tsum tau ua tib zoo tshuaj xyuas. Muaj peb txoj hauv kev tshuaj xyuas.
1, colouring method: xyuas nrog tus neeg saib xyuas xim.
2, translucent txoj kev: ib sab ntawm lub phaj piece muab lub teeb qhov chaw, cov neeg nyob rau hauv lub sab ntawm daim tshev.
3, unilateral pressure test method: unilateral test pressure los ntawm cov dej mus rau 0. 35MPa (gauge siab), yog tias sab nraud ntawm qhov chaw qis tshaj ntawm cov dej, ceev nrooj xyuas qhov chaw ntub dej ntawm lub phaj. Peb xaiv los txheeb xyuas txoj kev xa tawm, qhov zoo ntawm txoj kev no yog yooj yim, tus nqi qis, tshiab thiab qub daim ntawv tshuaj ntsuam xyuas yog siv tau. Txawm li cas los xij, nws yuav tsum muaj lub luag haujlwm siab ntawm cov neeg ua haujlwm soj ntsuam.
Raws li kev soj ntsuam daim ntawv phaj, txhawm rau txiav txim siab ua haujlwm, muaj peb yam tseem ceeb.
1, phaj ntawv thiab gasket tag nrho hloov.
2, tsuas yog hloov lub gasket.
3, hloov gaskets thiab ib feem ntawm kev puas tsuaj, deformation ntawm cov phaj loj.
Gasket muab tshuaj txhuam
Nrog cov nplaum los yog cov nplaum muaj zog, sib npaug hauv qab ntawm qhov sib khi groove coated txheej, thiab tom qab ntawd lub gasket yuav muab tso rau hauv lub sealing groove, haum tusyees, pressurised, ntuj ziab, los yog cua sov rau 100 degree -120 degree ob teev tom qab ziab. Xyuas seb nws puas haum ib daim ntawv los ntawm daim ntawv, thiab tshem tawm cov nplaum ntau dhau.
Kev sib dhos
Plate heat exchanger txheej txheem kev sib xyaw ua ke yog tus cwj pwm los ntawm: Yog tias cov kua dej nkag los ntawm lub kaum sab laug ntawm lub phaj, nws ib txwm tawm los ntawm lub kaum sab laug ntawm lub phaj, thiab rov ua dua. Kev sib dhos, kom paub qhov txawv ntawm A phaj, B phaj, uas yog: mus rau lub phaj daim ntawv nplaum rau sab pem hauv ntej, raws li kev taw qhia ntawm qhov sib txawv ntawm qhov sib txawv, cov lus qhia zawj rau ib qho kev taw qhia ntawm phaj li A phaj, cov lus qhia zawj rau lwm qhov kev taw qhia ntawm lub phaj uas yog B phaj, tab sis nyob rau hauv lub phaj thiab tsis txhob ntaus lub cim.
Hydraulic xeem
Raws li coj mus rau lub flange loj los ua plaub qhov muag tsis pom phaj, welded mus rau ntshuam thiab export, welded yeeb nkab ntawm lub phaj kom lub compressor thiab kub exchanger txuas. Nyob rau hauv lub ntshuam thiab export ntawm lub installation ntawm ib tug ntawv pov thawj, thiab nyob rau hauv lub validity ntawm lub siab gauge, lub siab gauge ntau yam rau ob npaug rau lub xeem siab yog tsim nyog. Kev ntsuas siab yog 1.5 npaug ntawm kev ua haujlwm siab.
1, nruj me ntsis raws li cov lus qhia saum toj no rau kev kho dua tshiab, qhov ua tau zoo ua tau raws li cov qauv tsim, thauj khoom kuaj 72 teev yam tsis muaj qhov xau. Thaum tshav kub kub pauv kua kub ntsuas ntsuas: alumina niam cawv ntshuam 45.2oC, export 84.6oC; alumina concentrate ntshuam 97.
2, kev txuag nqi. Vim yog cov khoom siv phaj rau ultra-nyias Crl7Nil3Mo2Ti stainless hlau, lub gasket kuj yog tshwj xeeb, tag nrho cov hloov tshiab phaj nqi yog siab heev. Los ntawm kev ntxuav thiab tshuaj xyuas, rov siv dua, ib lub phaj kub hloov pauv tuaj yeem txuag tus nqi 25-45 lab yuan.
