Nayitrojeni wamadzimadzi: Mpweya wa nayitrojeni mumadzi. Wosatentha, wopanda mtundu, wopanda fungo, wosapsa, wosapsa, kutentha kwambiri kwa cryogenic. Nayitrojeni imapanga mlengalenga wambiri (78.03% ndi voliyumu ndi 75.5% kulemera kwake). Nayitrojeni sagwira ntchito ndipo sathandizira kuyaka. Frostbite chifukwa kwambiri endothermic kukhudzana pa vaporization.
Nayitrogeni wamadzimadzi ndi gwero lozizira bwino. Chifukwa cha mawonekedwe ake apadera, nayitrogeni yamadzimadzi imaperekedwa pang'onopang'ono ndikuzindikiridwa ndi anthu. Zakhala zikugwiritsidwa ntchito mochulukirachulukira pakuweta ziweto, m'makampani azachipatala, m'makampani azakudya, komanso m'magawo ofufuza a cryogenic. Mu zamagetsi, zitsulo, mlengalenga, makina opanga makina ndi zina za ntchito zakhala zikukula ndikukula.
Cryogenic superconducting
Makhalidwe apadera a Superconductor, kotero kuti amatha kugwiritsidwa ntchito kwambiri m'magulu osiyanasiyana. Superconductor imapezedwa pogwiritsa ntchito nayitrogeni wamadzi m'malo mwa helium yamadzimadzi ngati refrigerant ya superconducting, yomwe imatsegula kugwiritsa ntchito ukadaulo wa superconducting m'njira zosiyanasiyana ndipo imawonedwa ngati imodzi mwazinthu zazikulu zopanga sayansi m'zaka za zana la 20.
Maluso a superconducting maginito othamangitsa ndi superconducting ceramic YBCO, pomwe zinthu zowongolera zimakhazikika mpaka kutentha kwa nayitrogeni wamadzimadzi (78K, molingana ndi -196 ~ C), kuchokera pakusintha kwabwinobwino kupita kudziko la superconducting. Mphamvu ya maginito yopangidwa ndi mphamvu yotetezedwa imakankhira mphamvu ya maginito ya njanjiyo, ndipo ngati mphamvuyo ndi yaikulu kuposa kulemera kwa sitimayo, galimotoyo ikhoza kuyimitsidwa. Nthawi yomweyo, gawo la maginito limatsekeredwa mu superconductor chifukwa cha mphamvu ya maginito yopindika panthawi yozizira. Mphamvu ya maginito imeneyi imakopeka ndi mphamvu ya maginito ya njanjiyo, ndipo chifukwa cha kunyansidwa ndi kukopeka, galimotoyo imangokhala chilili pamwamba panjanjiyo. Mosiyana ndi zotsatira za kunyansidwa kwa amuna kapena akazi okhaokha komanso kukopeka kwa amuna kapena akazi okhaokha pakati pa maginito, kuyanjana pakati pa superconductor ndi maginito akunja kumakankhira kunja ndikukopana wina ndi mnzake, kotero kuti ma superconductor ndi maginito osatha amatha kukana mphamvu yokoka yawo ndikuyimitsa kapena lendetsani mozondoka pansi pa mzake.
Kupanga ndi kuyesa zida zamagetsi zamagetsi
Kuwunika kupsinjika kwa chilengedwe ndikusankha kuchuluka kwa zochitika zachilengedwe, kugwiritsa ntchito kuchuluka koyenera kwa kupsinjika kwa chilengedwe ku zigawo kapena makina onse, ndikuyambitsa zolakwika zamagulu, ndiye kuti, zolakwika pakupanga ndi kukhazikitsa, ndi kupereka kuwongolera kapena kusintha. Kuwunika kupsinjika komwe kumakhala kothandiza kuvomereza kusinthasintha kwa kutentha ndi kugwedezeka kwachisawawa. Kutentha kozungulira kuyezetsa ndikuvomereza kusintha kwa kutentha kwakukulu, kupsinjika kwakukulu kwa kutentha, kotero kuti zigawo za zipangizo zosiyanasiyana, chifukwa cha kuwonongeka kwa mgwirizano, asymmetry ya zinthuzo, zolakwika zomwe zimachitika chifukwa cha zovuta zobisika ndi kulephera kwachangu, kuvomereza kusintha kwa kutentha kwa 5 ℃ / min. Kutentha kocheperako ndi -40 ℃, +60 ℃. Chiwerengero cha zozungulira ndi 8.Kuphatikizana kotereku kwa magawo a chilengedwe kumapangitsa kuwotcherera, kudula magawo, zigawo za zofooka zawo zowonekera bwino. Pamayeso ozungulira kutentha kwa misa, titha kuganizira kuvomereza njira ziwiri zamabokosi. Munthawi imeneyi, kuyezetsa kuyenera kuchitika pamlingo.
Nayitrogeni wamadzimadzi ndi njira yachangu komanso yothandiza kwambiri yotchinjiriza ndikuyesa zida zamagetsi ndi ma board ozungulira.
Maluso a mphero a Cryogenic mpira
Cryogenic mapulaneti mpira mphero ndi madzi nayitrogeni mpweya mosalekeza athandizira mu pulaneti mpira mphero okonzeka ndi kutentha kuteteza chivundikirocho, mpweya ozizira adzakhala mkulu liwiro kasinthasintha wa kutentha kwaiye ndi mpira akupera thanki zenizeni nthawi mayamwidwe, kotero kuti akupera mpira. thanki munali zipangizo, akupera mpira nthawi zonse mu malo ena cryogenic. Mu chilengedwe cha cryogenic kusakaniza, kupukuta bwino, chitukuko chatsopano cha mankhwala ndi kupanga magulu ang'onoang'ono a zipangizo zamakono. Mankhwalawa ndi ang'onoang'ono, odzaza, amatsatira kwambiri, amamveka phokoso, amagwiritsidwa ntchito kwambiri mu mankhwala, makampani opanga mankhwala, kuteteza chilengedwe, makampani opepuka, zomangira, zitsulo, zoumba, mchere ndi zina.
Luso la makina obiriwira
Kudula kwa cryogenic ndikugwiritsa ntchito madzimadzi a cryogenic monga nayitrogeni wamadzimadzi, carbon dioxide yamadzimadzi ndi mpweya wabwino wopopera kumalo odulirako, zomwe zimapangitsa kuti dera la cryogenic kapena ultra-cryogenic likhale lodula, pogwiritsa ntchito cryogenic brittleness ya workpiece. pamikhalidwe cryogenic, kusintha workpiece kudula machinability, moyo chida ndi workpiece pamwamba khalidwe. Malinga ndi kusiyana kwa sing'anga yozizira, kudula kwa cryogenic kumatha kugawidwa m'madulidwe ozizira a mpweya ndi kudula kwa nayitrogeni wamadzimadzi. Cryogenic ozizira mpweya kudula njira ndi kupopera mbewu mankhwalawa -20 ℃ ~ -30 ℃ (kapena m'munsi) cryogenic airflow ku gawo processing wa nsonga chida, ndi kusakaniza ndi kufufuza mbewu lubricant (10 ~ 20m 1 pa ola), kuti kusewera. ntchito yozizira, kuchotsa chip, mafuta. Poyerekeza ndi kudula kwachikhalidwe, kudula kuziziritsa kwa cryogenic kumatha kupititsa patsogolo kutsata, kuwongolera mawonekedwe a workpiece, komanso kusawononga chilengedwe. Malo opangira makina a Japan Yasuda Industry Company amavomereza masanjidwe a njira ya adiabatic yomwe imayikidwa pakati pa shaft yamoto ndi shaft yodula, ndipo imatsogolera ku tsamba pogwiritsa ntchito mphepo yozizira ya cryogenic ya -30 ℃. ndi zothandiza kukhazikitsa ozizira mpweya kudula luso. Kazuhiko Yokokawa adachita kafukufuku woziziritsa mpweya wabwino potembenuza ndi mphero. Poyesa mphero, madzi odulira m'munsi mwamadzi, mphepo yanthawi zonse yotentha (+10 ℃) ndi mpweya wozizira (-30 ℃) adagwiritsidwa ntchito kuyerekeza mphamvu. Zotsatirazo zinasonyeza kuti kulimba kwa chidacho kunasintha kwambiri pamene mpweya wozizira unagwiritsidwa ntchito. M'mayeso otembenuza, mpweya wozizira wa chida (-20 ℃) ndiwotsika kwambiri kuposa mpweya wabwinobwino (+20 ℃).
Kudula koziziritsa kwa nayitrogeni wamadzimadzi kuli ndi ntchito ziwiri zofunika. Imodzi ndikugwiritsa ntchito kuthamanga kwa botolo kupopera nayitrogeni wamadzimadzi molunjika kumalo odulira monga kudula madzi. China ndi kuziziritsa chida kapena workpiece pogwiritsa ntchito evaporation yamadzimadzi nayitrogeni pansi pa kutentha. Tsopano kudula kwa cryogenic ndikofunikira pakukonza titaniyamu aloyi, chitsulo chachikulu cha manganese, chitsulo cholimba ndi zina zovuta kukonza zida. KPRaijurkar adatengera chida cha H13A carbide ndipo adagwiritsa ntchito chida chozizirira cha nayitrogeni chamadzimadzi kuti achite zoyeserera zodulira ma cryogenic pa aloyi ya titaniyamu. Zotsatira zoyesa zidawonetsa kuti poyerekeza ndi njira zachikhalidwe zodulira, zida zobvala zidachotsedwa mwachiwonekere, kutentha kwafupikitsa kunachepetsedwa ndi 30%, ndipo mtundu wa makina opangira makinawo udasinthidwa kwambiri. Wan Guangmin adatengera njira yozizirira yosalunjika kuti achite zoyesera zodulira za cryogenic pazitsulo zapamwamba za manganese, ndipo zotsatira zake zimaperekedwa ndemanga. Mukatengera njira yozizirira yosalunjika pokonza chitsulo chambiri cha manganese pa cryogenic, mphamvu ya zida imachotsedwa, kuvala kwa zida kumachepetsedwa, zizindikiro zowumitsa ntchito zimawongoleredwa, komanso mawonekedwe apamwamba a chogwirira ntchito amawongoleredwa. Wang Lianpeng et al. adatengera njira yamadzimadzi nayitrogeni kupopera mbewu mankhwalawa otsika kutentha Machining kuzimitsidwa zitsulo 45 pa CNC zida makina, ndi ndemanga pa zotsatira mayeso. Kukhazikika kwa chida ndi mtundu wa workpiece pamwamba ukhoza kusinthidwa potengera njira yamadzimadzi ya nayitrogeni kupopera mbewu mankhwalawa mu makina otsika otentha achitsulo chozimitsidwa 45.
Mu madzi asafe kuzirala processing boma, carbide zinthu kulumikiza mphamvu kupinda, kulimba fracture ndi dzimbiri kukana, mphamvu, kuuma kumawonjezeka ndi kutentha ndi otsika choncho simenti carbide kudula zida zamadzimadzi nayitrogeni kuzirala mwina kulumikiza ntchito kudula kwambiri, monga kutentha kwa chipinda, ndipo ntchito yake imatsimikiziridwa ndi chiwerengero cha gawo lomangiriza. Kwa chitsulo chothamanga kwambiri, chokhala ndi cryogenic, kuuma kumawonjezeka ndipo mphamvu yake imakhala yochepa, koma zonse zimatha kugwirizanitsa ntchito yabwino yodula. Iye pa zipangizo zina mu cryogenic kusintha machinability ake kudula unachitikira phunziro, kusankha otsika mpweya zitsulo AISll010, mkulu mpweya zitsulo AISl070, kubala zitsulo AISIE52100, titaniyamu aloyi Ti-6A 1-4V, kuponyedwa zotayidwa aloyi A390 zipangizo zisanu, kukhazikitsa za kafukufuku ndi kuwunika: Chifukwa cha brittleness yabwino pa cryogenic, zotsatira zofunidwa zamakina zitha kupezeka mwa kudula kwa cryogenic. Pamwamba pazitsulo za carbon ndi zitsulo zokhala ndi zitsulo, kukwera kwa kutentha m'madera odulidwa ndi zida zovalira zimatha kuletsedwa ndi kuzirala kwa nayitrogeni wamadzimadzi. Mu kudula kuponyera zotayidwa aloyi, ntchito kuzirala cryogenic akhoza kusintha chida kuuma ndi chida kukana silicon gawo abrasive kuvala luso, mu processing wa titaniyamu aloyi, pa nthawi yomweyo cryogenic kuzirala chida ndi workpiece, zothandiza otsika kudula kutentha ndi kuthetsa kuyanjana kwa mankhwala pakati pa titaniyamu ndi zida za zida.
Ntchito zina zamadzimadzi nayitrogeni
Satellite ya Jiuquan inatumiza malo opangira mafuta apadera kuti apange nayitrogeni wamadzimadzi, wopangira mafuta a rocket, omwe amakankhidwira m'chipinda choyaka moto kwambiri.
Kutentha kwakukulu kwa superconducting mphamvu chingwe. Amagwiritsidwa ntchito kuyimitsa payipi yamadzimadzi pokonza mwadzidzidzi. Amagwiritsidwa ntchito kukhazikika kwa cryogenic ndi kuzimitsa kwa zinthu za cryogenic. Maluso a chipangizo chozizirira cha nayitrogeni wamadzimadzi (kukula kwa kutentha ndi zizindikiro zoziziritsa kuzizira pakugwiritsa ntchito kwamakampani) amagwiritsidwanso ntchito kwambiri. Maluso obzala mbewu za nayitrogeni mumtambo. Maluso amadzimadzi amadzimadzi amadzimadzi amadzimadzi amadzimadzi amadzimadzi nthawi zonse, amafufuza mozama nthawi zonse. Landirani nayitrogeni wozimitsa moto wapansi panthaka, moto umawonongeka mwachangu, ndikuchotsa kuwonongeka kwa kuphulika kwa gasi. Chifukwa chiyani musankhe madzi a nayitrogeni: Chifukwa amazizira mofulumira kusiyana ndi njira zina, ndipo sachita zinthu ndi zinthu zina, amachititsa kuti danga likhale louma komanso kuti likhale louma, siligwirizana ndi chilengedwe (nayitrogeni wamadzimadzi amasungunuka mwachindunji mumlengalenga akagwiritsidwa ntchito, osasiya chilichonse. kuipitsa), ndi yosavuta komanso yosavuta kugwiritsa ntchito.
HL Cryogenic Equipment
HL Cryogenic Equipmentyomwe idakhazikitsidwa mu 1992 ndi mtundu womwe umagwirizana nawoHL Cryogenic Equipment Company Cryogenic Equipment Co., Ltd. HL Cryogenic Equipment yadzipereka kupanga ndi kupanga High Vacuum Insulated Cryogenic Piping System ndi Zida Zothandizira Zothandizira kukwaniritsa zosowa zosiyanasiyana za makasitomala. The Vacuum Insulated Pipe ndi Flexible Hose amapangidwa mu vacuum yayikulu komanso yosanjikiza yamitundu ingapo ya zida zapadera zotchingidwa, ndipo amadutsa munjira zingapo zamankhwala okhwima kwambiri komanso ma vacuum apamwamba, omwe amagwiritsidwa ntchito kusamutsa mpweya wamadzimadzi, nayitrogeni wamadzimadzi. , argon yamadzimadzi, haidrojeni yamadzimadzi, helium yamadzimadzi, mpweya wa ethylene LEG ndi mpweya wachilengedwe wa liquefied LNG.
Mndandanda wazinthu za Phase Separator, Vacuum Hose, Vacuum Hose ndi Vacuum Vavu mu HL Cryogenic Equipment Company, yomwe idadutsa njira zingapo zamankhwala okhwima kwambiri, imagwiritsidwa ntchito potengera mpweya wamadzimadzi, nayitrogeni wamadzi, argon wamadzimadzi, wamadzimadzi wa hydrogen, wamadzimadzi. helium, LEG ndi LNG, ndipo zinthuzi zimatumizidwa ku zida za cryogenic (mwachitsanzo, thanki yosungiramo cryogenic, dewar ndi coldbox etc.) m'mafakitale olekanitsa mpweya, mpweya, ndege, zamagetsi, superconductor, tchipisi, pharmacy, biobank, chakudya & chakumwa, automation msonkhano, uinjiniya wamankhwala, chitsulo & chitsulo, mphira, kupanga zinthu zatsopano ndi kafukufuku wasayansi etc.
Nthawi yotumiza: Nov-24-2021
