Ithangi lokuqandisa ukudla kwasolwandle

Ukubuka konke:

Ubuchwepheshe bokugcina i-nitrogen ewuketshezi lwaselwandle buwubuchwepheshe obusha bokuqandisa ukudla eminyakeni yamuva nje. Izinga lokushisa elijwayelekile le-nitrogen ewuketshezi lingu-195.8 ℃, futhi okwamanje libhekwa njengendawo yokupholisa enobungani nemvelo, esebenza kahle futhi engabizi kakhulu. Uma i-nitrogen ewuketshezi ithintana nokudla kwasolwandle, umehluko wokushisa ungaphezu kuka-200 ℃, futhi ukudla kungaqandiswa ngokushesha kungakapheli imizuzu emi-5. Inqubo yokuqandisa ngokushesha yenza amakristalu eqhwa abe yizicucu ezincane kakhulu, ivimbela ukulahleka kwamanzi, ivimbela ukubhujiswa kwamagciwane nezinye izinto ezincane, yenza ukudla kungabi nombala ongcolile kanye nokuqhekeka kwamafutha, futhi igcina umbala wokuqala, ukunambitheka kanye nezakhamzimba zokudla kwasolwandle, ngakho-ke ukuqandisa isikhathi eside kungaqinisekisa nokunambitheka okuhle kakhulu.

Ifriji ye-nitrogen ewuketshezi yasolwandle iyona yokuqala esetshenziswa ekuqandisweni kwaso kwasolwandle okusezingeni eliphezulu ngenxa yokubanda kwayo okusheshayo, isikhathi eside sokugcina, izindleko zokufaka imishini eziphansi, izindleko zokusebenza eziphansi, ukusetshenziswa kwamandla, umsindo kanye nokugcinwa. Kungabikezelwa ukuthi ubuchwepheshe bokuqandisa be-nitrogen ewuketshezi buzothatha indawo kancane kancane yobuchwepheshe bendabuko bokuqandisa nokuvuselela, okuzoletha izinguquko ezinkulu ekusebenzeni kwefriji yendabuko.

Izici Zomkhiqizo:

○ Ubuchwepheshe bokufudumeza obunezingqimba eziningi ze-vacuum cleaner buyasetshenziswa ukuqinisekisa izinga eliphansi kakhulu lokulahlekelwa ukuhwamuka kwe-nitrogen ewuketshezi (<0.8%) kanye nezindleko zokusebenza eziphansi kakhulu.

○ Uhlelo lokuqapha nokuphatha oluhlakaniphile lwethangi le-nitrogen eliwuketshezi lungaqapha izinga lokushisa kanye nezinga loketshezi lwethangi lokudla kwasolwandle ngesikhathi sangempela, lubone ukugcwaliswa okuzenzakalelayo, luxwayise amaphutha ahlukahlukene angaba khona, futhi luqinisekise ukusebenza okuphephile kwemishini. Ngesikhathi esifanayo, luhlinzeka ngohlelo lokuphatha izimpahla zokugcina, olwenza ukuphathwa kwezimpahla eziphuma egunjini lokugcina impahla kanye nasegunjini lokugcina impahla kucace ngokushesha.

○ Amagobolondo angaphakathi nangaphandle enziwe ngensimbi engagqwali yezinga lokudla ukuqinisekisa ukuthi umkhiqizo uhlala isikhathi esingaphezu kweminyaka eyi-10.

○Isakhiwo sethreyi elijikelezayo langaphakathi senzelwe ukwenza kube lula ukufinyelela ekudleni kwasolwandle. Amanye amamodeli angafakelwa isakhiwo esijikelezayo sikagesi ukuze kufezwe ukufinyelela okuzenzakalelayo.

○ Ingagcinwa kokubili kugesi kanye noketshezi ukuqinisekisa ukuthi izinga lokushisa lomlomo wethangi lifinyelela ku--190 degrees C.

Izinzuzo zomkhiqizo:

○Izinga eliphansi lokuhwamuka kwe-nitrogen ewuketshezi
Ubuchwepheshe bokufudumeza obunezingqimba eziningi ze-vacuum buqinisekisa izinga eliphansi lokulahlekelwa ukuhwamuka kwe-nitrogen ewuketshezi kanye nezindleko zokusebenza eziphansi.

○ Ubuchwepheshe obusha bugcina ukunambitheka kwasekuqaleni
I-nitrogen ewuketshezi iqinisa ngokushesha, izinhlayiya ze-ice crystal zokudla zincane, ziqeda ukulahleka kwamanzi, zivimbele amabhaktheriya nezinye izinto ezincane ezilimaza ukudla, ukuze ukudla kungabi nokushintsha kombala we-oxidation futhi kube nokuwohloka kuphela.

○ Uhlelo lokuqapha oluhlakaniphile
Ingafakelwa uhlelo lokuqapha oluhlakaniphile, ukuqapha inethiwekhi ngesikhathi sangempela sokushisa kwethangi ngalinye, ukuphakama kwezinga loketshezi, njll., ingagcwalisa ngokuzenzakalelayo, zonke izinhlobo ze-alamu yamaphutha. Ngesikhathi esifanayo ukuhlinzeka ngohlelo lokuphatha impahla, ukuphathwa kwezimpahla ngaphakathi nangaphandle kwesitoreji.