Heptafluoropropane (HFC-227ea), tshuaj lom neeg cov tshuaj C3HF7, muaj peb lub ntsiab lus: C (carbon), F (fluorine), thiab H (hydrogen). Nws yog vaporized nyob rau hauv qhov chaw tsis muaj residue, tsis-kev coj ua, thiab feem ntau tsis ua rau muaj kuab paug thib ob. Ntxiv rau cov tsev khaws khoom qub, nws tseem ua tau zoo rau kev txuag cov khoom siv hluav taws xob, cov twj paj nruag raug ntsuas, cov twj paj nruag zoo nkauj thiab cov ntawv sau thiab lwm cov ntawv, txhob lo lo ntxhuav lossis cov ntaub ntawv tshaj tawm. Tso tus neeg sawv cev rau.
Heptafluoropropane yog qhov ruaj khov ntawm chav tsev kub thiab yuav ploj mus thaum ua kom sov. Hauv cov txheej txheem tua hluav taws tiag, heptafluoropropane hluav taws tua hluav taws yog ua tiav los ntawm tshuaj lom neeg thiab lub cev ua ke.
Heptafluoropropane thiab cov khoom siv cua txias tub yees ua tib pawg, yog li nws yog qhov ua tau zoo hloov pauv hloov cua sov. Lub cev tua hluav taws cov nyhuv yog nqus cov cua kub hauv hluav taws los ntawm vaporization, uas ua rau muaj qhov kub ntawm cov nplaim hluav taws tsawg. Qhov tshuaj lom neeg cov tshuaj tiv thaiv yog thermal decomposition los tsim fluorine-dawb radicals xws li CF3, CF2, CF3, CFO, thiab CFO, yog li cuam tshuam txog cov xov xwm cov tshuaj lom cov tshuaj tiv thaiv hauv cov txheej txheem sib txuas.
Tseem ceeb tshaj, heptafluoropropane tua hluav taws sai.
Thaum txhim kho hluav taws, qhov hluav taws kub ntxov tau tswj tau zoo tshaj plaws. Yog tias cov tua hluav taws thaum ntxov tsis tuaj yeem tua tau raws sijhawm, nws yuav nyuaj rau tua cov hluav taws txuas ntxiv. Ntxiv mus, cov khoom siv tuag taus xws li kub thiab haus luam yeeb yog tsim nyob rau hauv thawj theem ntawm kev sib txuas. Xaiv cov cuab yeej tua hluav taws nrog cov tua hluav taws kom ua tiav yog qhov ntsuas tseem ceeb rau kev tiv thaiv hluav taws los ntawm qhov tshwm sim thiab kis tau sai.
Cov chaw tua hluav taws muag khoom yuav siv sijhawm li 60 lij lossis ntau dua los tsim cov tshuaj tua hluav taws. Lub sijhawm tso tawm ntawm heptafluoropropane tsawg dua kaum lub vib nas this, uas tuaj yeem tua cov hluav taws ua ntej qhov hluav taws kub tau tsim, thiab yuav tsis muaj qhov rov yauv mus ntxiv tom qab ua tiav (ua kom tsis txhob hom ua kom tsis txhob rov ua haujlwm). Cov tshuaj tiv thaiv nrawm thiab ua kom zoo tshaj plaws kev sib tsub hluav taws muaj peev xwm zam dhau qhov kev puas tsuaj.
Txheeb xyuas qhov cuam tshuam ntawm kev tua hluav taws tus neeg tua hluav taws ntawm qhov chaw ib puag ncig, nws qhov kev cuam tshuam ncaj qha thiab tsis ncaj rau ib puag ncig. Heptafluoropropane tsis muaj cov tshuaj chlorine lossis bromine, tsis rhuav tshem pov tseg txheej pov tseg tom qab tua tag, thiab ozone txheej muaj peev xwm ODP yog 0. Nws yog tus tua hluav taws huv huv. Heptafluoropropane muaj cov nyhuv ntsuab tag tom qab tua cov hluav taws. Lub tsev cog khoom nyhuv Performance index tus nqi GMP yog 3220, tab sis txij li nws tsuas yog tso tawm thaum muaj hluav taws kub, nws cov kev cuam tshuam yuav luag tsis tau.
Txij li nws tuaj yeem ua tau raws li cov kev cai ntawm cov roj huv hluav taws tua hluav taws uas hais txog kev tua hluav taws, kev tiv thaiv kev tiv thaiv kev nyab xeeb, tib neeg kev nyab xeeb, thiab kev cuam tshuam rau ib puag ncig, heptafluoropropane tau suav hais tias yog cov khoom lag luam uas tau hloov mus rau halon tua hluav taws zoo thiab tau siv dav. hauv Europe thiab Amelikas. Tam sim no, NFPA2001 (American huv tshuaj tua hluav taws tua hluav taws tsim qauv qauv), ISO14520 (European roj tua hluav taws tua qauv tsim qauv) thiab GB50370 (Suav cov hluav taws kub tua hluav taws tsim qauv tsim) txhua qhov sib xyaw heptafluoropropane hluav taws tua hluav taws tso rau hauv lawv cov qauv.
