Mbiri ya Kampani
Gawo la nayitrogeni lamadzimadzi lomwe limapangidwa ndi gawo lathu limatenga Pressure Swing Adsorption (PSA) kuti likonzekere nayitrogeni yoyera, yomwe imayendetsedwa ndi gasi wosakanikirana wa joule-thomson Refrigeration Cycle, MRC mwachidule) kuti apange nayitrogeni wamadzimadzi wofunikira.
Mfundo Zoyendetsera Ntchito
Ponena za firiji yomwe ikuwonetsedwa mu Chithunzi 1, ntchito yake ndi: refrigerant yamadzimadzi yotsika kwambiri pa kutentha kozungulira T0 (yogwirizana ndi mfundo ya 1s) imapanikizidwa kukhala mpweya wotentha kwambiri (malo 2) ndi kompresa, ndi Kenako amalowa ozizira, etc. Utakhazikika pansi kutentha yozungulira (mfundo 3), amalowa regenerative kutentha exchanger, ndi utakhazikika ndi reflux otsika-anzanu otsika kutentha mpweya kuti boma mfundo 4, akulowa throttle valavu, adiabatic throttling kuloza. 5, kutentha kumatsika, ndikulowa mu evaporator kuti apereke kuzizira Pamene kutentha kumakwera kufika pa 6, kumalowa m'njira yotsika kwambiri ya kutentha kwa regenerative, ndipo pamene kuziziritsa kuthamanga kwakukulu kumalowa, kutentha kwake kumabwerera pang'onopang'ono. 1, ndiyeno kulowa chitoliro kulumikiza exchanger kutentha ndi kompresa. Pakhoza kukhala gawo la dongosolo panthawiyi Kutentha kwa kutentha, kutentha kumakwera kutentha kozungulira, kubwerera kumalo a boma kwa 1 sekondi, ndipo dongosolo limamaliza kuzungulira. Dongosolo la firiji pang'onopang'ono limachepetsa kutentha molingana ndi ndondomeko yomwe ili pamwambayi, ndipo pamapeto pake imapereka mphamvu ya refrigeration pa kutentha kwa firiji Tc. Pakuti anagawira kutentha katundu kuzirala, mphamvu kuzirala amaperekedwa pang'onopang'ono pa ndondomeko reflux, monga liquefaction gasi, etc.
Makhalidwe a osakaniza refrigerant throttling firiji
1) Kuyamba mwachangu komanso kuzizira kwachangu. Kupyolera mu chiŵerengero cha ndende ya refrigerant, kusintha kwa mphamvu ya kompresa ndi kutsegulira kwa valve throttle, zofunikira zozizira mofulumira zingatheke;
2) Njirayi ndi yophweka, chiwerengero cha zipangizo ndizochepa, ndipo kudalirika kwadongosolo ndikwapamwamba. Zigawo zazikulu za dongosololi zimatenga ma compressor okhwima, osinthanitsa kutentha ndi zida zina m'munda wa firiji. Dongosololi lili ndi kudalirika kwakukulu komanso magwero osiyanasiyana a zida.
Mtengo wopangira gawo la nayitrogeni wamadzimadzi wosakanikirana umaphatikizapo magawo awiri: PSA nitrogen generator unit ndi MRC liquefaction unit. Jenereta ya nayitrogeni ya PSA ndiyokhwima ndipo ndiyosavuta kugula pamsika wapanyumba.
