Zida zamankhwala zitha kugawidwa m'magulu awiri: zida zachitsulo ndi zida za polima. Makhalidwe azitsulo ndi okhazikika ndipo amalolera bwino njira zosiyanasiyana zolera. Choncho, kulolerana kwa zipangizo za polima nthawi zambiri kumaganiziridwa posankha njira zolera. Zida zachipatala zomwe zimagwiritsidwa ntchito polima pazida zamankhwala ndi polyethylene, polyvinyl chloride, polypropylene, poliyesitala, ndi zina zotere, zonse zomwe zimakhala ndi zinthu zabwino zosinthiraethylene oxide (EO)njira yotseketsa.

EOndi yotakata sipekitiramu sterilant kuti akhoza kupha tizilombo zosiyanasiyana kutentha firiji, kuphatikizapo spores, chifuwa mabakiteriya, mabakiteriya, mavairasi, bowa, etc. Pa kutentha ndi kupanikizika,EOndi mpweya wopanda mtundu, wolemera kuposa mpweya, ndipo uli ndi fungo lonunkhira la ether. Kutentha kukakhala kochepera 10.8 ℃, gasiyo amasungunuka ndikukhala madzi owoneka bwino opanda mtundu pa kutentha kochepa. Ikhoza kusakanikirana ndi madzi mumtundu uliwonse ndipo imatha kusungunuka muzitsulo zomwe zimagwiritsidwa ntchito nthawi zambiri. Kuthamanga kwa nthunzi kwa EO ndi kwakukulu, kotero kumakhala ndi mphamvu zolowera muzinthu zosawilitsidwa, zimatha kulowa mu micropores ndikufika kumadera akuya a zinthu, zomwe zimathandiza kuti asabereke bwino.

Kutentha kwa Sterilization

Muethylene oxidesterilizer, kusuntha kwa mamolekyu a ethylene oxide kumachulukira pamene kutentha kumakwera, zomwe zimathandiza kuti zifike kumalo ofananirako ndikuwongolera mphamvu yotseketsa. Komabe, mu njira yeniyeni yopangira, kutentha kwa sterilization sikungawonjezereke mpaka kalekale. Kuphatikiza pa kulingalira za mtengo wa mphamvu, machitidwe a zipangizo, ndi zina zotero, zotsatira za kutentha pa ntchito ya mankhwala ziyeneranso kuganiziridwa. Kutentha kwambiri kumatha kufulumizitsa kuwonongeka kwa zinthu za polima, zomwe zimapangitsa kuti pakhale zinthu zosayenera kapena kufupikitsa moyo wautumiki, etc.Choncho, kutentha kwa ethylene oxide sterilization nthawi zambiri kumakhala 30-60 ℃.

Chinyezi Chachibale

Madzi ndi gawo laethylene oxidenjira yotseketsa. Pokhapokha pakuwonetsetsa kuti chinyezi chambiri mu sterilizer ndizotheka kuti ethylene oxide ndi tizilombo tating'onoting'ono tigwirizane ndi alkylation reaction kuti tikwaniritse cholinga chotseketsa. Panthawi imodzimodziyo, kukhalapo kwa madzi kungathenso kufulumizitsa kutentha kwa sterilizer ndikulimbikitsa kufalitsa yunifolomu ya mphamvu ya kutentha.Chinyezi chachibale chaethylene oxidekutsekereza ndi 40% -80%.Zikatsikira 30%, ndizosavuta kuyambitsa kulephera kwa njira yolera.

Kukhazikika

Pambuyo kudziwa kutentha yolera yotseketsa ndi chinyezi wachibale, ndiethylene oxideKukhazikika ndi kutseketsa bwino kumawonetsa machitidwe amtundu woyamba, ndiye kuti, kuchuluka kwa zomwe zimachitika kumawonjezeka ndi kuchuluka kwa ndende ya ethylene oxide mu sterilizer. Komabe, kukula kwake sikuli kopanda malire.Kutentha kukadutsa 37 ° C ndipo ethylene oxide ndende ndi yayikulu kuposa 884 mg/L, imalowa m'malo ochitira ziro., ndiethylene oxidendende ali ndi zotsatira zochepa zimene mlingo.

Nthawi Yochita

Pochita kutsimikizira kutsekereza, njira yozungulira theka imagwiritsidwa ntchito kudziwa nthawi yotsekera. Njira yozungulira theka imatanthawuza kuti pamene magawo ena kupatula nthawi amakhalabe osasinthika, nthawi yochitapo kanthu imachepetsedwa ndi theka motsatizana mpaka nthawi yaifupi kwambiri kuti zinthu zosabala zifike pamalo osabala. Kuyeza kolera kumabwerezedwa katatu. Ngati njira yolera yotseketsa ikhoza kukwaniritsidwa, imatha kutsimikizika ngati theka la mkombero. Pofuna kuonetsetsa kuti sterilization ikugwira ntchito,nthawi yeniyeni yoletsa kubereka iyenera kuwirikiza kawiri theka la mkombero, koma nthawi yochitapo iyenera kuwerengedwa kuyambira pomwe kutentha, chinyezi chachibale,ethylene oxidekukhazikika ndi mikhalidwe ina mu chowumitsa zimakwaniritsa zofunikira zotseketsa.

Zida zoyikamo

Njira zosiyanasiyana zotsekera zimakhala ndi zofunikira zosiyanasiyana pakuyika zida. Kusinthasintha kwa zinthu zoyikapo zomwe zimagwiritsidwa ntchito panjira yotseketsa kuyenera kuganiziridwa. Zida zomangira zabwino, makamaka zida zazing'ono kwambiri zonyamula, zimagwirizana mwachindunji ndi mphamvu ya ethylene oxide. Posankha zida zoyikamo, zinthu zosachepera, kulekerera kwapakati, mpweya, ndi antibacterial properties ziyenera kuganiziridwa.Ethylene oxidekutsekereza kumafuna zomangira kuti zikhale ndi mpweya wokwanira.