Yuav ua li cas xaiv lub PTFE rhaub nrog ntev, Flexible Cold Zone rau ib qho nyuaj - mus rau -Reach Tank?

Lub tank txheej txheem tuaj yeem muab tso rau hauv qhov tob hauv lub tshuab congested thav duab lossis hauv qab lub qab nthab qis nrog nws lub qhov rooj nkag tau ntim rau hauv cov kav dej. Muaj qhov pom tseeb zoo tshaj plaws rau lub rhaub dej kub, tab sis qhov chaw nkag siab zoo rau lub thawv hluav taws xob sib txuas - tawm hauv huab cua qhib, txias thiab yooj yim kom tau txais ntawm kev saib xyuas - yog ib lub 'meter' los yog ntau tshaj nyob deb, nce thiab ib ncig ntawm kaum. Lub cev tsis zoo PTFE lub rhaub nrog luv luv ntawm qhov kev txiav tawm yuav tsis ua haujlwm. Qhov kev daws teeb meem yog lub hom phiaj- ua lub rhaub nrog qhov ntev, hloov pauv, tsis muaj cua sov, zoo li lub periscope, tso cai rau cov khoom kub kom nkag mus tob rau hauv lub tank thaum lub hlwb hluav taws xob ruaj ntseg thiab yooj yim khaws cia saum toj no.

Kev Lag Luam Tank Access Challenge
Muaj ntau cov txheej txheem tshuaj tso tsheb hlau luam nyob rau hauv cov cheeb tsam uas tsawg dua qhov zoo tshaj plaws rau kev kho cua sov. Piv txwv:

Lub tank tso rau hauv qhov sib sib zog nqus los yog qhov dej nrog rau sab saum toj flange ntawm lossis qis dua hauv pem teb.

Tso tsheb hlau luam ntsia hauv steel tshuab thav duab, nrog cov kab hlais thiab cov kav dej sab xis saum lub qhov ncauj tank.

Plating kab nrog ob peb lub tso tsheb hlau luam nyob ze, nrog qhov tsawg kawg nkaus yuav tsum muaj rau kev sib txuas hluav taws xob.

Tank nrog me ntsis nyiaj siv ua haujlwm tshem tawm (piv txwv li hauv qab mezzanine lossis lub qhov tso pa tawm).

Nyob rau hauv tag nrho cov xwm txheej no lub tank nws tus kheej tuaj yeem mus txog - lub rhaub tuaj yeem muab tso rau hauv cov kua. Txawm li cas los xij, lub thawv hluav taws xob hluav taws xob (lub taub hau davhlau ya nyob twg) ntawm lub tshuab tso cua sov ua ke yuav nyob rau hauv qhov chaw nruj, ntub lossis corrosive. Qhov no ua rau kev saib xyuas ib txwm muaj (xws li kev sim megger, rewiring lossis hloov fuse) nyuaj, pheej hmoo lossis ua tsis tau. Tsis tas li ntawd lub thawv sib txuas tau raug corrosive vapors uas yuav maj mam noj tam sim ntawd ntawm cov hluav taws xob ntsaws ruaj ruaj thiab cov davhlau ya nyob twg txuas.

Kev daws: Ib Ntev, Flexible Cold Zone
Ib qho piv txwv PTFE immersion rhaub yog tsim los ntawm peb ntu:

Heated ib feem : PTFE-coated caij rau hauv cov kua thiab ua kom sov.

Qhov chaw txias (nroj tsis sov): luv, tawv PTFE raj (feem ntau 150-300 mm) saum cov kua dej. Nws muaj lub zog insulated coj thiab mus rau lub thawv txiav.

Terminal box (hluav taws xob lub thawv): Lub tsev nyob qhov twg lub hwj chim coj mus txuas nrog rau cov khoom siv sab nraud.

Nyob rau hauv lub PTFE rhaub, qhov txias cheeb tsam yog txuas mus rau 1, 2 los yog txawm 3 meters nyob rau hauv ntev - thiab ua tau yooj yim mus rau hauv ib tug nyuaj rau nkag mus rau hauv lub tank hom. Qhov cua sov feem ntau yog qhov loj me rau lub tank qhov tob. Qhov chaw txias yog tsim los ntawm cov phab ntsa tuab lossis corrugated lossis braid reinforced PTFE raj. Lub raj yog mechanically saj zawg zog txaus los khoov smoothly nyob ib ncig ntawm impediments, tab sis robust txaus kom nws cov duab thiab tiv taus qhov hnyav ntawm lub thawv davhlau ya nyob twg. Lub thawv davhlau ya nyob twg tuaj yeem txuas rau ntawm phab ntsa yooj yim, txhawb nqa lossis tshuab thav duab hauv qhov chaw huv, qhuav, zoo-lit thiab nkag tau yooj yim.

Lub caj dab hloov tau ntev ntawm lub tshuab cua sov ua rau nws txoj hauv kev tawm ntawm qhov txwv tsis pub muaj kua qaub, nqa nws cov hluav taws xob sib txuas mus rau hauv huab cua ntshiab thiab lub teeb.

Tsim Parameters rau ib qho chaw txias txias
Hauv kev qhia txog lub tshuab cua sov li no, yuav tsum tau muab ntau cov yam ntxwv ntawm kev ua haujlwm kom muaj kev nyab xeeb thiab txhim khu kev qha.

Yam tsawg kawg Bending Radius
Lub PTFE tubing hloov tau yuav tsum tsis txhob kinked los yog khoov heev quab yuam raws li qhov no tej zaum yuav tsoo lub sab hauv los yog ua mob rau lub rwb thaiv tsev ntawm lub hwj chim kab. Qhov tsawg kawg nkaus khoov vojvoog yuav muab los ntawm cov chaw tsim khoom (feem ntau yog 5-10 npaug ntawm txoj kab uas hla ntawm qhov chaw txias txias). Piv txwv li, ib qho chaw txias tube nrog OD ntawm 25 hli yuav muaj qhov qis qis qis ntawm 150mm. Qhov no yuav tsum tau pom thaum lub installation. Txoj kev routing yuav tsum tau nkhaus thiab tsis muaj qhov ntse tig. Nyob rau hauv cov ntaub ntawv ntawm kev hloov ntawm 90 degrees, qhov chaw txias yuav tsum tau nkhaus nyob rau hauv ib tug dav arc hla ib tug deb ntawm tsawg kawg yog 150-200 mm.

Txias Zone Temp Limit
By definition, the cold zone is not heated. But it is still influenced by the ambient heat coming from the tank wall, from the heated part below and from the surface of the hot liquid. The cold zone must be kept at a safe temperature (usually 80°C at the point of contact of the PTFE with the terminal box) in an effort to safeguard the PTFE material and internal insulation. The length of the cold zone and the nature of the heat sink (e.g. a metal or PTFE heat shield) shall be determined by the manufacturer such that the terminal box mounting flange does not go beyond this limit. For very lengthy cold zones (e.g. >1.5 m) lub ntuj tshav kub conduction ntawm PTFE raj yog me me thiab qhov kub ntawm lub thawv txiav yuav tsuas yog me ntsis saum ambient.

Cov Khoom Siv Tsim Kho Txias Thaj Chaw
Qhov hloov pauv qhov chaw txias txias yog feem ntau ua los ntawm:

Corrugated PTFE: Lub raj convoluted nyob rau hauv tag nrho cov lus qhia kom yooj. Nws yog resistant rau tshuaj tua kab mob thiab lub teeb yuag. Txawm li cas los xij, nws yooj yim dua raug mob los ntawm cov khoom ntse.

PTFE with braid or reinforcement: A smooth bore PTFE tube with a braid of stainless steel or polyester on the outside. The braid provides additional tensile strength, abrasion resistance and kink resistance. This is preferred for extended cold zones (>1m) los yog thaum muaj kev cuam tshuam rau txhua yam.

Hlau bellows nrog PTFE: PTFE tshaj -moulded ntawm hlau bellows (xws li stainless hlau). Qhov no muab cov neeg kho tshuab zoo zog thiab lub vojvoog nruj heev tab sis nws hnyav dua thiab kim dua.

Lub hwj chim sab hauv (feem ntau yog npib tsib xee-plated tooj liab lossis npib tsib xee ntshiab rau kev kub siab) yog insulated nrog PTFE lossis FEP lub tes tsho. Lawv yuav tsum tau ntev txaus kom ncav cuag tag nrho qhov ntev ntawm thaj tsam txias ntxiv rau lwm 200-300 hli hauv lub thawv davhlau ya nyob twg rau kev sib txuas.

Qhov chaw ntawm Terminal Box
Lub thawv davhlau ya nyob twg nws tus kheej yuav tsum tau muab tso rau hauv qhov chaw uas haum rau cov qauv hauv qab no:

ambient kub: qis dua 50℃(kom tsis txhob muaj cua sov ntawm cov hluav taws xob terminals).

Atmosphere: Ntxuav, qhuav, tsis muaj corrosive fumes. Yog hais tias lub thawv yuav nyob rau hauv ib puag ncig corrosive me me, xaiv NEMA 4X (IP66) lossis siab dua enclosure nrog corrosion- tiv thaiv txheej.

Kev siv tau. Qhov chaw txaus los qhib lub hau, tshem tawm lub megger tester, thiab rub cov xov hlau. Peb pom zoo kom tshem tawm yam tsawg kawg 500 mm nyob rau hauv pem hauv ntej ntawm lub thawv.

Vibration: Vibration theem qis. Yog tias lub cuab yeej tau nruab rau ntawm lub tshuab vibrating ncej, siv vibration dampers lossis ib qho chaw sib cais.

Piv txwv ntawm Kev Txhim Kho tiag
Xav txog lub pob zeb pob zeb nrog lub tank ntawm chrome plating ua rau hauv nws. Sab saum toj ntawm lub tank yog txawm nrog hauv pem teb. Lub qhov taub yog them nrog ib tug hlau grate. Muaj ib lub qhov hluav taws xob overhead uas tawm 800 mm clearance saum lub grating. Ib lub tshuab cua sov PTFE ib txwm yuav muaj lub thawv davhlau ya nyob twg hauv lub qhov taub, hauv qab lub grating, qhov twg nws yuav raug chrome pos huab, thiab yuav luag tsis tuaj yeem mus rau kev saib xyuas.

Peb siv ib qho kev daws teeb meem nrog rau qhov chaw txias hloov tau ntev:

Qhov cua sov yog 900 hli ntev thiab haum rau 1 m tob tank (100 hli tshem tawm hauv qab).

Qhov chaw txias yog 1.8 meters ntev nrog lub zog PTFE raj.

Lub cheeb tsam txias yog qhia upwards los ntawm ib lub qhov nyob rau hauv lub grating thiab ces nkhaus nrog ib tug maj mam 90℃tig mus rau sab, nyob ib ncig ntawm ib tug txhawb nqa thiab xaus nyob rau hauv ib tug davhlau ya nyob twg lub thawv nyob rau ntawm phab ntsa ntawm duav qhov siab, 1.2 m saum lub grating.

Qhov tsawg kawg nkaus lub vojvoog (150 mm) yog tswj raws li qhov kev kawm.

Lub thawv davhlau ya nyob twg muaj lub hau hinged thiab daim ntawv qhia meej qhia qhov voltage, wattage thiab serial tooj ntawm lub rhaub.

Qhov tshwm sim: muaj kev nyab xeeb thiab nkag tau yooj yim rau kev sim megger peb lub hlis twg thiab txhua qhov kev hloov kho cov xaim tsim nyog. Qhov chaw txias tsis muaj cua sov tseem qis dua 60℃ntawm qhov chaw vim tias qhov ntev muaj cov cua sov txaus.

Thaum twg Flexible Cold Zone tsis qhia?
Qhov chaw txias kho tau kov yeej ntau yam kev txhawj xeeb txog kev nkag mus tab sis muaj kev txwv:

Qhov kub thiab txias heev: Thaum cov kua kub siab tshaj 100℃(qhov siab tshaj plaws rau PTFE immersion heaters), xav tau lwm hom cua sov tsis hais qhov chaw txias.

Aggressive mechanical hnav: Yog tias qhov chaw txias yuav tsum dhau los ntawm lub qhov hauv lub phaj hlau lossis raug puas tsuaj tsis tu ncua (xws li cov neeg taug kev) cov hlau tsis muaj steel lossis PTFE lined hlau standpipe tej zaum yuav tsim nyog dua.

Extreme lengths >3m: Rau cov cheeb tsam txias ntev tshaj li ~ 3m, qhov hluav taws xob poob hauv lub hwj chim ua tau loj thiab cov khoom siv hluav taws xob ntawm lub raj yog qhov nyuaj. Cov yeeb nkab nruj los yog lub thawv txuas txuas ntxiv nrog cov kav dej sib cais yog nyiam.

Kev co ib puag ncig siab: Kev rov ua dua tuaj yeem ua rau qaug zog tsis ua haujlwm ntawm kev sib tshuam ntawm thaj chaw txias rau thaj tsam cua sov. Siv cov clamps los tuav qhov chaw txias txias kom tsis txhob txav mus los.

Daim ntawv txheeb xyuas Specification -
Thaum thov ib qho kev tsocai rau PTFE immersion rhaub nrog rau qhov ntev, hloov tau yooj yim, cov khoom hauv qab no yuav tsum muab rau ntawm RFQ:

Parameter Description
Tag nrho qhov ntev ntawm cov cua sov (Lh) Ntev ntawm PTFE sheath yuav tsum raus rau hauv cov kua
Tag nrho qhov ntev ntawm cheeb tsam txias (Lc) Kev ncua deb ntawm cov kua nto mus rau lub thawv txiav flange (nrog rau khoov)
Tube khoom txias zonePTFE tshaj -bllows, Braided PTFE los yog Corrugated PTFE
Min khoov radiusManufacturer- muab; yuav tsum hwm nyob rau hauv routing tsim
Terminal lub thawv hom NEMA 4X (IP66) lossis ib txwm, nrog lossis tsis muaj ntsuas kub, fuse lossis tsav teeb
Fais fab txhuas ntev nyob rau hauv lub thawv davhlau ya nyob twg Feem ntau ib qho ntxiv 300 mm rau connector
Wattage thiab VoltsStandard qhov tseem ceeb (piv txwv li . 2 kW, 240 V ib theem)
Daim ntawv pov thawj CE, UL lossis lwm yam kev pom zoo xav tau
Cov chaw tsim khoom yuav tsum muab cov qauv tsim kom pom qhov ntev ntawm qhov cua sov, qhov chaw txias txias thiab pom zoo khoov lub vojvoog. Cov lus qhia kev teeb tsa yuav tsum muaj kev ceev faj kom tsis txhob dhau qhov qis qis qis qis thiab tsis txhob siv lub zog rau lub thawv davhlau ya nyob twg.

TXOJ CAI: Kev sib cais ntawm qhov chaw thiab kev sib txuas
Qhov ntse, kev cai daws teeb meem uas cais lub tshuab cua sov lub cev qhov chaw los ntawm nws cov hluav taws xob sib txuas yog qhov ntev, hloov tau yooj yim, uas daws cov teeb meem tsis zoo tshaj plaws hauv lub tank. "Lub tank yog qhov tsim nyog rau lub caij kub yuav tsum nyob rau hauv cov txheej txheem. Lub hlwb hluav taws xob (lub thawv davhlau ya nyob twg) nyob rau hauv qhov chaw nyab xeeb, siv tau, deb ntawm cov tshuaj corrosive, blockages thiab cramped cheeb tsam. Lawv txuas nrog lub caj dab PTFE hloov tau, uas muab cov tshuaj tiv thaiv thiab kev ua raws li kev siv tshuab. Qhov kev daws teeb meem zoo tshaj plaws yog feem ntau yog ib qho uas ua rau kev txhim kho yooj yim dua thiab muaj kev nyab xeeb rau cov neeg ua haujlwm. lub thawv davhlau ya nyob twg, lub tshuab cua sov uas muaj qhov ntev, hloov pauv qhov chaw txias tsis yog khoom kim heev, tab sis yog qhov tsim nyog uas ua rau muaj kev phom sij, kev ua haujlwm nyuaj, kev nyab xeeb, thiab kev ua haujlwm zoo.