Chofunika Kwambiri pa Kupereka Nayitrogeni Yamadzimadzi ku Laboratory: Matanki a Nayitrogeni Yamadzimadzi Odzipanikiza Okha

Mwachitsanzo, Shengjie Liquid Nitrogen Replenishment Series imapereka zotengera zatsopano zosungiramo nayitrogeni yamadzimadzi yotsika kutentha kwambiri. Zogulitsazi zimapangidwa makamaka kuti zigwiritsidwe ntchito ndi ogwiritsa ntchito ma laboratory ndi makampani opanga mankhwala kuti zisungidwe nayitrogeni yamadzimadzi kapena kubwezeretsanso zokha.

Ndi kapangidwe kake ka chitsulo chosapanga dzimbiri, amatha kupirira malo ovuta kwambiri ogwirira ntchito pomwe amachepetsa kuchuluka kwa kutayika kwa nthunzi. Chinthu chilichonse mu mndandanda uwu chimakhala ndi valavu yolimbikitsira, valavu yotulutsira madzi, choyezera kuthamanga, valavu yotetezera, ndi valavu yotulutsira mpweya. Kuphatikiza apo, mitundu yonseyi ili ndi zotengera zinayi zosunthika kuti zikhale zosavuta kuyenda pakati pa malo osiyanasiyana.

Kuwonjezera pa kudzazanso matanki amadzimadzi a nayitrogeni, matanki amadzimadzi a nayitrogeni odzikakamiza okha amathanso kudzazana. Kuti muchite izi, konzani zida monga ma wrench pasadakhale. Musanalowetse nayitrogeni wamadzimadzi, tsegulani valavu yotulutsira mpweya, tsekani valavu yolimbikitsira ndi valavu yotulutsira madzi, ndikudikirira kuti kuwerenga kwa pressure kuchepe kufika pa zero.

Kenako, tsegulani valavu yotulutsira mpweya ya thanki yomwe ikufunika kuwonjezeredwa, lumikizani mavalavu awiri otulutsira mpweya ndi payipi yolowetsera madzi, ndikuyilimbitsa ndi wrench. Kenako, tsegulani valavu yolimbikitsira ya thanki yosungiramo nayitrogeni yamadzimadzi ndikuwona momwe mpweya umayezera. Mukangoyesa mpweya wopitirira 0.05 MPa, mutha kutsegula mavalavu onse awiri otulutsira mpweya kuti mubwezeretse madziwo.

Ndikofunika kudziwa kuti mukalowetsa nayitrogeni yamadzimadzi koyamba kapena mutatha nthawi yayitali osagwiritsa ntchito, ndibwino kuti choyamba mulowetse nayitrogeni yamadzimadzi ya 5L-20L kuti muziziritse chidebecho (pafupifupi mphindi 20). Pambuyo poti chidebe chamkati cha chidebecho chazizira, mutha kulowetsa nayitrogeni yamadzimadzi kuti mupewe kupanikizika kwambiri komwe kumachitika chifukwa cha kutentha kwambiri kwamkati, komwe kungayambitse kuchuluka kwa nayitrogeni yamadzimadzi komanso kuwonongeka kwa ma valve oteteza.

Pa nthawi yogwira ntchito, ogwira ntchito ayenera kuvala zida zoyenera zodzitetezera kuti asavulale ndi nayitrogeni yamadzimadzi. Poika nayitrogeni yamadzimadzi m'matanki amadzimadzi a nayitrogeni odzikakamiza okha, pazifukwa zachitetezo, sayenera kudzazidwa mokwanira, kusiya pafupifupi 10% ya kuchuluka kwa chidebecho ngati malo osungira mpweya.

Mukamaliza kudzaza nayitrogeni yamadzimadzi, musatseke nthawi yomweyo valavu yotulutsira mpweya ndikuyika nati yotsekera kuti valavu yotetezera isadumphe pafupipafupi chifukwa cha kutentha kochepa komanso kuwonongeka. Lolani thankiyo iime kwa maola osachepera awiri musanatseke valavu yotulutsira mpweya ndikuyika nati yotsekera.