Kusamutsa LN₂: Machitidwe Oteteza Vacuum a Nayitrogeni Yamadzi Oyera Kwambiri

Machitidwe otumizira nayitrogeni wamadzimadzi akuyembekezeka kuchita chinthu chimodzi bwino kwambiri: kusunga LN₂ yozizira komanso yokhazikika kuyambira thanki yosungira mpaka pomwe ikugwiritsidwa ntchito. M'malo enieni amafakitale, makamaka kugwiritsa ntchito mpweya wa semiconductor ndi mpweya woyeretsedwa kwambiri, ngakhale kutentha pang'ono kungapangitse kupanga nthunzi, kusakhazikika kwa kuthamanga kwa magazi, kapena kusasinthasintha kwa kayendedwe ka madzi.

At HL Cryogenics, timapanga mapulanichitoliro chotenthetsera cha vacuumndipayipi yosinthasinthamakina makamaka otumizira LN₂ kutali ndi kutayika kochepa kwa kutentha. Mwa kuphatikiza kutchinjiriza kwa vacuum komwe kumasungidwa bwino,mavavu otetezedwa ndi vacuumndiukadaulo wolekanitsa magawo, makina athu amatha kusunga kutumizidwa kwa madzi m'gawo limodzi mokhazikika m'maukonde ovuta ogawa madzi a cryogenic.

Chifukwa Chake Kuteteza Vacuum Ndikofunikira Pakutumiza LN₂

Nayitrogeni yamadzimadzi imagwira ntchito pafupifupi -196 °C. Ndi kutentha kozungulira komwe nthawi zambiri kumakhala kopitilira 25 °C, kusiyana kwa kutentha pakhoma la chitoliro kumatha kupitirira 200 °C. Popanda kutchinjiriza bwino, kutentha kumalowa mwachangu mu dongosolo kudzera mu conduction, convection, ndi radiation, zomwe zimapangitsa mpweya woipa komanso kuyenda kosakhazikika kwa magawo awiri.

Zathuchitoliro chotenthetsera cha vacuumMakinawa amagwiritsa ntchito kapangidwe ka chitsulo chosapanga dzimbiri chokhala ndi makoma awiri chokhala ndi malo otseguka okhala ndi vacuum annular omwe nthawi zambiri amakhala pansi pa 1 × 10⁻⁵ mbar. Pansi pa izi, mpweya wotulutsa mpweya ndi convection zimatsala pang'ono kuchotsedwa. Kuteteza kwa multilayer (MLI) kumachepetsanso kutentha kwa radiative mwa kuwonetsa mphamvu ya infrared kutali ndi chitoliro chozizira chamkati.

Poyerekeza ndi kutchinjiriza kwa thovu kwachizolowezi, mphamvu yoyendetsera kutentha ndi yotsika kwambiri, zomwe zimapangitsa kuti LN₂ isamutsidwe pa mamita mazana ambiri pamene ikusunga madzi ndi kupanikizika kokhazikika.

Dongosolo la Pampu Yopumira Yopanda MphamvuKuti Pakhale Kukhazikika Kwanthawi Yaitali

Chimodzi mwa mavuto omwe amafala kwambiri pa kutchinjiriza kwa cryogenic ndi kuwonongeka pang'onopang'ono kwa vacuum pakapita nthawi. Kutuluka kwa mpweya wotsalira kuchokera pamwamba pa chitsulo chosapanga dzimbiri, zipangizo zotchinjiriza, ndi kulowa kwa mpweya pang'onopang'ono kumawonjezera kupanikizika kwa annulus, zomwe zimachepetsa mphamvu ya kutentha.

Kuti tithetse izi,HL CryogenicsimagwirizanitsaDongosolo la Pampu Yopumira Yopanda Mphamvumu netiweki yosamutsira. Dongosololi limachotsa malo ozungulira nthawi zonse kapena nthawi ndi nthawi kuti likhale ndi malo okhazikika a vacuum panthawi yonse yogwira ntchito kwa nthawi yayitali.

Gawo la vacuum nthawi zambiri limaphatikizapo:

• Mapampu opukutira mpweya wouma kapena turbomolecular vacuum
• Ma gauge oyang'anira vacuum
• Magawo ogwiritsira ntchito sieve ya molekyulu
• Ma valve odzipatula komanso osabwerera

Njira yogwiritsira ntchito vacuum iyi yosamalira imapangitsa kuti ntchito yoteteza kutentha isasinthe pakapita zaka zambiri ndipo ndi yofunika kwambiri m'malo opangira ma semiconductor komwe kukhazikika kwa kutentha kwa LN₂ kumakhudza mwachindunji kubwerezabwereza kwa njira.

Kutumiza Kokhazikika kwa Gawo Limodzi ndiMa Vavu Otetezedwa ndi VacuumndiOlekanitsa Magawo

Mu makina otumizira madzi a cryogenic, kusunga madzi oyenda mu gawo limodzi ndikofunikira kwambiri. Matumba a nthunzi mkati mwa payipi amatha kubweretsa kusakhazikika kwa madzi, kutsekeka kwa madzi, kusinthasintha kwa kuthamanga kwa madzi, komanso kuchepa kwa kudalirika kwa njira yogwirira ntchito.

Zathumavavu otetezedwa ndi vacuumZapangidwa ndi maboneti otambasulidwa okhala ndi vacuum kuti achepetse kutentha komwe kumazungulira thupi la valavu. Kuyika tsinde kumayikidwa kunja kwa malo obisika kuti kupewe kuzizira ndikuwonetsetsa kuti ntchitoyo ikugwira ntchito bwino panthawi yobwerezabwereza.

Pansi pa mtsinje,zolekanitsa magawo otetezedwa ndi vacuumChotsani nthunzi yolowetsedwa yomwe imapangidwa panthawi yosamutsa. LN₂ imalowa mu separator mozungulira, zomwe zimathandiza kuti magawo a mpweya ndi madzi azilekanitsidwa bwino madziwo asanayambe kutsika.

Kuphatikiza kumeneku kumathandiza kusunga mphamvu yokhazikika ndikuwonetsetsa kuti zida zapansi pamadzi zimalandira nayitrogeni yamadzi yoyera komanso yozizira.

Kuphatikiza kwa Tanki Yaing'ono ya Ma Network Ogawidwa a LN₂

Pa malo omwe ali ndi kufunikira kosinthasintha kapena malo ambiri ogwiritsira ntchito, kutsekereza kwapakati kumatha kusintha kwambiri kukhazikika kwa makina.

ZathuMndandanda wa Mini Tank, kuyambira 100 L mpaka 3 000 L, imapereka malo osungira LN₂ pafupi ndi zida zopangira. Thanki iliyonse imagwiritsa ntchito chotenthetsera cha vacuum ndi zothandizira zamkati zopanda mphamvu kuti zichepetse kupanikizika ndi kutayika kwa kutentha.

Pakugwira ntchito yeniyeni, Mini Tanks zimathandiza:

• Yamwani kusinthasintha kwa kuthamanga kwa magazi
• Kusamalira nthawi zomwe anthu amawononga kwambiri
• Chepetsani katundu pa dongosolo lalikulu la zinthu zoperekera
• Konzani kukhazikika pafupi ndi zida zodziwikiratu

Kapangidwe kameneka kamagwiritsidwa ntchito kwambiri m'mafakitale a semiconductor, ma laboratories, ndi machitidwe ogawa gasi m'mafakitale.

Kapangidwe ka Machitidwe ndi Uinjiniya

WambaHL CryogenicsDongosolo losamutsa la LN₂ limagwira ntchito pakati pa mipiringidzo 3 ndi 10 ndipo liwiro la kuyenda kwake limafika mpaka 8 m/s.

Yolimbachitoliro chotenthetsera cha vacuumnthawi zambiri amagwiritsidwa ntchito pothamanga molunjika kwa nthawi yayitali, pomwevacuum insulated yosinthasinthaZigawo za payipi zimayikidwa pamalo olumikizira zida, malo olumikizirana, kapena malo omwe amafunika kulipidwa kuti ayendetsedwe.

Mu mikhalidwe yokhazikika yogwirira ntchito, kutentha konse kumatha kuchepetsedwa kufika pa 0.25–0.5 W/m kutengera ndi momwe mzere umakhazikitsidwira. Mu mapulojekiti ambiri, izi zimalola nayitrogeni yamadzimadzi kuyenda mamita mazana angapo popanda kupanga nthunzi yokwanira.

Zigawo zosinthasintha za payipi zimagwiritsa ntchito ma cores amkati achitsulo chosapanga dzimbiri cha 316L chophatikizidwa ndi ma straightener akunja kuti asamavutike komanso kuti azitha kugwira ntchito kwa nthawi yayitali.

Kugwiritsa Ntchito Semiconductor Fab ku East Asia

Kampani yopanga ma semiconductor ku Taiwan yasintha njira yake yogawa ma LN₂ yomwe ilipo kale pambuyo poti yakumana ndi kusakhazikika kwa nthunzi m'mapaipi otetezedwa ndi makina.

HL Cryogenicsanapereka njira yosamutsira yosakanizidwa yokhala ndi:

• Chitoliro chotenthetsera cha vacuumpa njira yayikulu yogawa
• Paipi yosinthika yotenthetsera yotenthetserapamalo olumikizira zida
• Pakatikatikupopera kwa vacuum kosinthika
• Zolekanitsa magawo otetezedwa ndi vacuumpamalo aliwonse opangira zinthu

Pambuyo poyika, kuyeza kutentha kwa dongosolo kunakhazikika pa pafupifupi 0.27 W/m, ndipo malowa anachotsa kusokonekera kwa kupanga komwe kumabwera chifukwa cha LN₂ panthawi yogwira ntchito mosalekeza.

Kutsatira Malamulo ndi Ntchito Zapadziko Lonse

HL Cryogenicsmakinawa adapangidwa motsatira miyezo yayikulu yapadziko lonse lapansi ya cryogenic, kuphatikizapo:

• ASME B31.3
• EN 13480
• ISO 21013
• BS 6364

Makina athu osinthira otetezedwa ndi vacuum pakadali pano amagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikizapo:

• Kupanga ma semiconductor
• Kugawa gasi m'mafakitale
• Machitidwe oziziritsa chakudya
• Zomangamanga za LNG
• Mapulojekiti oyendetsa haidrojeni
• Ma network a cryogenic a labotale

Mfundo zomwezo zotetezera mpweya wa vacuum zomwe zimagwiritsidwa ntchito pa LN₂ zitha kugwiritsidwanso ntchito pa mpweya wamadzimadzi, argon yamadzimadzi, LNG, ndi hydrogen yamadzimadzi.

Gwirizanani ndiHL Cryogenics

Kusamutsa LN₂ kodalirika kumafuna zambiri osati kungowonjezera kutentha kuzungulira chitoliro. Kukhazikika kwa kutentha kwa nthawi yayitali kumadalira umphumphu wa vacuum, kuwongolera gawo, kapangidwe kabwino ka makina, ndi uinjiniya wokhudzana ndi cryogenic.

At HL Cryogenics, timapereka njira zonse zotumizira zotetezedwa ndi vacuum kuphatikizapo chitoliro chotetezedwa ndi vacuum, payipi yosinthasintha, ma valve, zolekanitsa magawo, ndi Mini Tanks zomwe zapangidwira kuti zigwire bwino ntchito mokhazikika kwa zaka zambiri.

Ngati mukukonzekera netiweki yatsopano yogawa LN₂ kapena kukweza makina omwe alipo kale a cryogenic, gulu lathu la mainjiniya likhoza kupereka kusanthula kutentha komwe kumatuluka komanso malingaliro a makina omwe amapangidwira pulogalamu yanu.