Yog tias koj mus ntsib cov khoom siv hauv tsev los yog taug kev mus rau hauv chav ua haujlwm ntawm lub tub yees, koj yuav pom qhov tshwm sim nthuav: txawm tias nws yog cov neeg loj heev txawv teb chaws lossis cov tuam txhab lag luam hauv tsev, yuav luag tag nrho lawv cov txheej txheem polyurethane ua npuas ncauj rwb thaiv tsev yog sau nrog "cyclopentane foaming." Tawm tsam keeb kwm yav dhau los ntawm cov theem kev ua tiav- tawm ntawm HCFC-141b hauv lub tub yees thiab lub tub yees kev lag luam, cyclopentane tau muaj peev xwm sawv tawm ntawm ib pawg ntawm lwm txoj hauv kev (xws li HFCs thiab HFOs) thiab dhau los ua cov ntsiab lus tseem ceeb. Qhov no tsis yog vim nws yog "ib puag ncig tus phooj ywg," tab sis kuj vim tias nws pom qhov sib npaug ntawm tus nqi, kev ua tau zoo, thiab kev ua raws cai. Niaj hnub no, cia peb piav qhia meej txog cov txiaj ntsig tseem ceeb ntawm cyclopentane ua tus neeg saib xyuas lub tub yees tshuab.
Qhov zoo tshaj plaws irreplaceable ntawm cyclopentane raws li ib tug tub yees tshuab tshuab yog nws "zero pollution" cov ntaub ntawv, uas ua tau raws li los yog txawm ntau tshaj qhov nruj tshaj tam sim no ib puag ncig kev cai.
Nyob rau hauv thaum ntxov xyoo, cov tub yees manufacturers nyiam 141b vim nws foamed zoo thiab tsis yog -flammable thiab non{2}} tawg. Txawm li cas los xij, raws li Montreal Protocol thiab "Cov Lus Pom Zoo ntawm Ozone Depleting Substance Substitutes" muab los ntawm Tuam Tshoj Ministry of Ecology thiab Ib puag ncig, 141b tau raug txwv vim nws ODP (Ozone Depletion Potential) ntau dua 0. Cyclopentane, ntshiab hydrocarbon fraction ntawm 0 thiab C. GWP (Lub Ntiaj Teb Warming Potential) tsuas yog kwv yees li 11.
Qhov no txhais li cas? Nws txhais tau hais tias los ntawm kev siv cyclopentane, cov khoom siv hauv tsev tsis tsuas yog zam tag nrho cov kev pheej hmoo raug cai ntawm kev puas tsuaj rau cov txheej txheem ozone tab sis kuj muaj kev tiv thaiv zoo los ntawm yav tom ntej tuaj yeem "cov se carbon" lossis kev txwv tsis pub siv cov pa roj carbon emission txwv. Lub sijhawm ntev - txoj cai tswjfwm kev pheej hmoo zam kom zoo dua yog qee yam uas tsis muaj kev hloov pauv hloov pauv tau.
Txawm hais tias cov thermal conductivity yog me ntsis qis rau thaum ntxov Freon- hom tshuab tshuab, cyclopentane tseem tuaj yeem txhawb nqa cov kev cai rwb thaiv tsev ntawm thawj- chav kawm hluav taws xob ua hluav taws xob los ntawm kev tsim txiaj ntawm nws cov qauv ntawm tes optimized.
Qhov ntsuas qhov kawg rau kev ntsuas lub tub yees tshuab tshuab yog thermal conductivity, uas ncaj qha txiav txim siab lub tub yees lub zog noj thiab rwb thaiv tsev txheej thickness. Saib tsuas yog tus nqi tiag tiag, cyclopentane yog qhov qis dua rau 141b, tab sis hauv kev ua lag luam, qhov sib txawv no yog nqaim.
Los ntawm kev kho cov txheej txheem polyurethane (xws li siv high-kev ua tau zoo polyether polyols thiab tshwj xeeb silicone roj ua npuas ncauj stabilizers), lub cyclopentane foaming system tuaj yeem tsim cov qauv ntawm tes zoo heev nrog lub siab kaw -cov ntsiab lus ntawm tes. Cia peb saib ntawm cov txheej txheem hardcore kev lag luam cov ntaub ntawv sib piv:
| Tshuab tshuab hom | ODP Tus nqi | GWP Tus nqi | Thermal conductivity (mW / m · K, 25 degree) | Ntsuas kev ua tau zoo hauv tub yees Insulation Txheej |
|---|---|---|---|---|
| HCFC-141b (Hloov tawm) | 0.11 | 725 | 10.0 | Cov rwb thaiv tsev zoo heev, tab sis ua txhaum lub teb chaws txwv thiab siv tsis tau |
| HFC-245fa (Kev hloov pauv) | 0 | 1,030 | 12.5 | Kev rwb thaiv tsev zoo, tab sis GWP siab heev, ntsib theem thib ob - tawm kev pheej hmoo |
| Cyclopentane (Lub ntsiab lus tseem ceeb) | 0 | Kwv yees li 11 | Kwv yees li 14.5 | Kev rwb thaiv tsev zoo, tuaj yeem ua tiav thawj zaug -chav kawm siv hluav taws xob los ntawm kev tsim cov thinning (xws li, ua ke nrog VIP panels) |
| LBA (HFO) (High-end) | 0 | <5 | 11.5 | Kev rwb thaiv tsev zoo heev thiab tus phooj ywg ib puag ncig, tab sis cov khoom siv raw khoom yog kim heev |
Nws tuaj yeem pom tias cov thermal conductivity ntawm cyclopentane yog nyob ib ncig ntawm 14.5. Txawm hais tias me ntsis siab dua 141b, nrog rau kev ua kom zoo ntawm cov khoom siv tub yees niaj hnub no, nws tuaj yeem ua tiav thiab ruaj khov ua tiav lub teb chaws thawj -chav kawm ntawv pov thawj lub zog ua haujlwm.
Cyclopentane qhia txog tus nqi zoo dua li fluorocarbon tshuab cov neeg ua haujlwm ntawm cov khoom siv raw khoom, txo cov nqi tsim khoom ib lub tub yees.
Kev lag luam khoom siv hauv tsev tau ntev dhau los ua dej hiav txwv liab, thiab kev tswj hwm tus nqi yog qhov teeb meem ntawm lub neej thiab kev tuag. Tus nqi ntawm HFC-245fa lossis cov kua HFO tshuab tshuab tshiab (xws li LBA) feem ntau yog kaum tawm txhiab lossis ntau pua txhiab RMB ib tuj, cuam tshuam ntau nruab nrab - mus rau - cov chaw tsim khoom tub yees qis.
Cyclopentane, vam khom rau Tuam Tshoj lub peev xwm loj loj petrochemical, muaj cov khoom siv ntau heev, nrog cov nqi yuav khoom feem ntau tsuas yog ob peb txhiab RMB ib tuj. Txawm hais tias txiav txim siab qhov kev txiav txim siab ntawm kev tawg ua ntej-cov ntaub ntawv pov thawj rhiav rov qab cov nqi, cov khoom siv foaming nqi faib rau ib lub tub yees tseem tseem txo qis rau lub hauv paus loj ntawm ntau lab units. Qhov no yog qhov laj thawj tseem ceeb vim li cas cyclopentane tau kov yeej qhov nruab nrab ntawm - mus rau - qis - kev ua lag luam kawg thiab cov neeg siv khoom loj hauv khw.
Qhov loj tshaj lub cev tsis xws luag ntawm cyclopentane nyob rau hauv nyias - phab ntsa tub yees foaming yog tsis txaus flowability, ib tug mob taw tes uas yuav tsuas yuav alleviated los ntawm lub hauv paus los ntawm heev raw khoom purity.
Yuav kom muaj tseeb, cyclopentane muaj qhov tsis zoo uas ua rau cov neeg tsim khoom mob taub hau: tsis muaj dej txaus. Vim hais tias qhov kub ntawm cyclopentane yog siab li 49.3 degree, nws vaporizes maj mam nyob rau hauv lub nqaim interlayer ntawm lub tub yees sab nrauv plhaub thiab sab hauv liner, ua rau cov kua ntws maj mam nyob rau hauv cov pwm. Yog tias nws tsis ntws zoo, qhov khoob lossis qhov tsis sib xws (feem ntau hu ua "ntau qhov ntom ntom ntom ntom ntom ntom" hauv kev lag luam) yuav tshwm sim ntawm cov ces kaum ntawm lub tub yees thiab sab nraum qab ntawm lub compressor compartment.
Txhawm rau daws qhov teeb meem flowability, dhau li ntawm kev hloov kho cov qauv, qhov yooj yim tshaj plaws saib tsis tau tab sis qhov txuas tuag yog - raw khoom purity. Yog hais tias lub cyclopentane yog tov nrog lub teeb Cheebtsam nrog qis boiling ntsiab lus (xws li isopentane), cov roj khiav ceev heev thaum lub sij hawm foaming; yog tias sib xyaw nrog cov khoom hnyav lossis dej noo, nws yuav rhuav tshem cov qauv ntawm tes. Tsuas yog cov ntshiab ntshiab cyclopentane tso cai rau cov neeg tsim khoom kom tswj tau cov tshuaj tiv thaiv kinetics nkhaus.
Raws li cov chaw tsim khoom lag luam, ZL Energy qhov txiaj ntsig tseem ceeb nyob rau hauv kev tshem tawm impurities los ntawm kev sib sib zog nqus distillation, siv siab -purity cyclopentane saum 99.5% los pab cov khw muag khoom hauv qab hauv qab los daws qhov mob ntawm cov dej tsis zoo thiab cov hlwb ntxhib.
Muaj ntau cov tub lag luam muag cyclopentane nyob rau hauv kev ua lag luam, tab sis muaj ob peb qhov chaw tsim khoom uas tuaj yeem ua tau raws li cov qauv kev yuav khoom ncaj qha ntawm cov lag luam tub yees loj. Ntau lub tuam txhab me me thiab nruab nrab - cov tuam txhab loj yuav cyclopentane nrog purity tsawg li 98% lossis qis dua. Cov kab ya raws thiab sulfides muaj ncaj qha ua rau "brittleness" los yog "tso kaw-cov ntsiab lus ntawm tes" thaum lub sij hawm foaming.
ZL Energy tau nkag siab txog qhov mob ntawm kev lag luam no. Raws li cov kws tshaj lij cyclopentane chaw tsim khoom, ZL Zog tsis sib tw ntawm tus nqi qis tab sis ntawm qhov zoo. Kev vam khom rau nws qhov tob tob distillation units thiab ntau -theem desulfurization thiab lub cev qhuav dej, ZL Zog tuaj yeem tuav ruaj khov cyclopentane purity ntawm tus qauv siab tshaj 99.5%, nrog rau tag nrho cov sulfur cov ntsiab lus tswj ntawm qhov tsawg kawg nkaus ntawm 1 ppm. Rau polyurethane foaming cov kab ntau lawm, siv high -purity cyclopentane ncaj qha muab los ntawm ZL Zog txhais tau hais tias lub cev tsis muaj zog ntawm cov khoom siv yuav luag tsis hloov pauv. Formulators tsis tas yuav hloov kho qhov tsis tu ncua rau kev hloov pauv ntawm lub tank. Lub flowability ntawm cov kua foaming yog feem ntau stably guaranteed, tus nqi void ntawm lub tub yees ces kaum yog ho txo, thiab cov tawm los ib txwm txhim kho. Hauv kev sib ntaus sib tua nyuaj ntawm 141b hloov pauv, nrhiav lub chaw tsim khoom xws li ZL Zog uas tuaj yeem ruaj khov muab cov khoom zoo siab{11}} cov ntaub ntawv zoo yog txoj hauv kev txhim khu kev qha tshaj plaws rau cov tuam txhab tub yees.
