Binciken Tambayoyi da yawa a cikin Jirgin Ruwa na Cryogenic Transport (1)

Gabatarwaduction

Tare da haɓaka fasahar cryogenic, samfuran ruwa na cryogenic suna taka muhimmiyar rawa a fannoni da yawa kamar tattalin arzikin ƙasa, tsaro na ƙasa da binciken kimiyya. Aikace-aikacen ruwa na cryogenic ya dogara ne akan ingantaccen kuma amintaccen ajiya da sufuri na samfuran ruwa na cryogenic, kuma bututun watsa bututun ruwa na cryogenic yana gudana ta duk tsarin ajiya da sufuri. Saboda haka, yana da matukar mahimmanci don tabbatar da aminci da ingancin watsa bututun ruwa na cryogenic. Don watsa ruwa na cryogenic, dole ne a maye gurbin iskar gas a cikin bututun kafin watsawa, in ba haka ba yana iya haifar da gazawar aiki. Tsarin sanyi shine hanyar haɗin da ba makawa a cikin aiwatar da jigilar samfuran ruwa na cryogenic. Wannan tsari zai kawo matsa lamba mai karfi da sauran mummunan tasiri ga bututun. Bugu da ƙari, abin da ya faru na geyser a cikin bututun tsaye da kuma yanayin rashin kwanciyar hankali na tsarin aiki, irin su cika bututun reshe makafi, cikawa bayan magudanar ruwa da kuma cika ɗakin iska bayan buɗe bawul, zai kawo nau'i daban-daban na mummunan tasiri akan kayan aiki da bututun. . Bisa la'akari da haka, wannan takarda ta yi nazari mai zurfi kan matsalolin da ke sama, da kuma fatan gano mafita ta hanyar bincike.

 

Matsar da iskar gas a cikin layi kafin watsawa

Tare da haɓaka fasahar cryogenic, samfuran ruwa na cryogenic suna taka muhimmiyar rawa a fannoni da yawa kamar tattalin arzikin ƙasa, tsaro na ƙasa da binciken kimiyya. Aikace-aikacen ruwa na cryogenic ya dogara ne akan ingantaccen kuma amintaccen ajiya da sufuri na samfuran ruwa na cryogenic, kuma bututun watsa bututun ruwa na cryogenic yana gudana ta duk tsarin ajiya da sufuri. Saboda haka, yana da matukar mahimmanci don tabbatar da aminci da ingancin watsa bututun ruwa na cryogenic. Don watsa ruwa na cryogenic, dole ne a maye gurbin iskar gas a cikin bututun kafin watsawa, in ba haka ba yana iya haifar da gazawar aiki. Tsarin sanyi shine hanyar haɗin da ba makawa a cikin aiwatar da jigilar samfuran ruwa na cryogenic. Wannan tsari zai kawo matsa lamba mai karfi da sauran mummunan tasiri ga bututun. Bugu da ƙari, abin da ya faru na geyser a cikin bututun tsaye da kuma yanayin rashin kwanciyar hankali na tsarin aiki, irin su cika bututun reshe makafi, cikawa bayan magudanar ruwa da kuma cika ɗakin iska bayan buɗe bawul, zai kawo nau'i daban-daban na mummunan tasiri akan kayan aiki da bututun. . Bisa la'akari da haka, wannan takarda ta yi nazari mai zurfi kan matsalolin da ke sama, da kuma fatan gano mafita ta hanyar bincike.

 

Tsarin sanyi na bututun mai

A cikin dukan tsarin watsa bututun ruwa na cryogenic, kafin kafa yanayin watsawa mai tsayi, za a sami tsarin sanyaya da zafi mai zafi da kuma karɓar tsarin kayan aiki, wato, tsarin sanyaya. A cikin wannan tsari, bututun bututu da kayan aiki don jure wa babban damuwa na raguwa da tasirin tasiri, don haka ya kamata a sarrafa shi.

Bari mu fara da nazarin tsari.

Gabaɗayan tsarin sanyi yana farawa tare da tsarin turɓaya mai tashin hankali, sannan yana bayyana kwararar matakai biyu. A ƙarshe, kwararar lokaci-lokaci ɗaya yana bayyana bayan an sanyaya tsarin gaba ɗaya. A farkon precooling tsari, bango zafin jiki a fili ya wuce jikewa zafin jiki na cryogenic ruwa, har ma ya wuce babba iyaka zafin jiki na cryogenic ruwa - matuƙar zafi fiye da kima. Saboda canja wurin zafi, ruwan da ke kusa da bangon bututu yana zafi kuma nan take ya yi tururi don samar da fim ɗin tururi, wanda ke kewaye da bangon bututu gaba ɗaya, wato, tafasar fim yana faruwa. Bayan haka, tare da tsarin sanyi, zafin jiki na bangon bututu sannu a hankali yana faɗuwa ƙasa da iyakar zafin zafi, sa'an nan kuma an kafa yanayi masu kyau don tafasawar canji da tafasasshen kumfa. Babban juzu'in matsin lamba yana faruwa yayin wannan tsari. Lokacin da precooling da aka za'ayi zuwa wani mataki, da zafi damar bututun da zafi mamayewa na muhalli ba zai zafi da cryogenic ruwa zuwa jikewa zazzabi, da kuma yanayin guda-lokaci kwarara zai bayyana.

A cikin aiwatar da matsananciyar tururi, za a haifar da kwararar ruwa mai ban mamaki da matsi. A cikin duka tsarin jujjuyawar matsa lamba, matsakaicin matsa lamba da aka kafa a karon farko bayan ruwan cryogenic ya shiga cikin bututu mai zafi kai tsaye shine matsakaicin girman girman a cikin duk tsarin jujjuyawar matsa lamba, kuma matsa lamba na iya tabbatar da karfin karfin tsarin. Saboda haka, kawai motsin matsa lamba na farko ne kawai ana nazarin gabaɗaya.

Bayan an buɗe bawul ɗin, ruwa na cryogenic da sauri ya shiga cikin bututun a ƙarƙashin aikin bambance-bambancen matsa lamba, kuma fim ɗin tururi da aka samar ta hanyar vaporization ya raba ruwa daga bangon bututu, yana samar da kwararar axial mai ma'ana. Domin juriya coefficient na tururi yana da ƙananan ƙananan, don haka yawan kwararar ruwa na cryogenic yana da girma sosai, tare da ci gaba na gaba, yawan zafin jiki na ruwa saboda shayar da zafi kuma a hankali ya tashi, saboda haka, matsa lamba na bututu yana ƙaruwa, saurin cikawa yana raguwa. kasa. Idan bututun ya yi tsayi sosai, dole ne zazzabin ruwa ya kai ga jikewa a wani lokaci, a lokacin ne ruwan ya daina ci gaba. Ana amfani da zafi daga bangon bututu zuwa cikin ruwa na cryogenic duk ana amfani dashi don evaporation, a wannan lokacin saurin fitarwa yana ƙaruwa sosai, matsin lamba a cikin bututun kuma yana ƙaruwa, yana iya kaiwa 1. 5 ~ 2 sau na matsa lamba. A karkashin aikin da bambancin matsa lamba, wani ɓangare na ruwa za a mayar da shi zuwa ga cryogenic ruwa tank tank, sakamakon da gudun da tururi tsara ya zama karami, kuma saboda wani ɓangare na tururi samu daga bututu fitarwa fitarwa, bututu matsa lamba drop, bayan. wani lokaci, bututun zai sake kafa ruwa a cikin yanayin bambancin matsa lamba, lamarin zai sake bayyana, don haka maimaita. Duk da haka, a cikin tsari mai zuwa, saboda akwai wani matsa lamba da kuma wani ɓangare na ruwa a cikin bututu, karuwar matsa lamba da sabon ruwa ke haifarwa kadan ne, don haka matsa lamba zai zama karami fiye da farkon farko.

A cikin dukan tsari na precooling, tsarin ba wai kawai ya ɗauki babban tasiri na matsa lamba ba, amma har ma yana ɗaukar babban damuwa na raguwa saboda sanyi. Ayyukan haɗin gwiwar biyu na iya haifar da lalacewar tsarin, don haka ya kamata a dauki matakan da suka dace don sarrafa shi.

Tunda yawan zafin sanyin sanyi kai tsaye yana shafar tsarin sanyin sanyi da girman damuwa na sanyin sanyi, ana iya sarrafa tsarin sanyi ta hanyar sarrafa ƙimar saurin sanyi. Ƙa'idar zaɓi mai ma'ana na ƙimar saurin sanyi shine rage lokacin sanyi ta hanyar amfani da mafi girman ƙimar zafin jiki a kan yanayin tabbatar da cewa canjin matsa lamba da damuwa na sanyin sanyi ba su wuce iyakar damar kayan aiki da bututun mai ba. Idan yawan zafin jiki na kafin sanyi ya yi ƙanƙanta, aikin rufin bututun ba shi da kyau ga bututun, maiyuwa bazai taɓa kaiwa yanayin sanyaya ba.

A cikin tsari na precooling, saboda abin da ya faru na biyu-lokaci kwarara, ba shi yiwuwa a auna ainihin kwarara kudi tare da na kowa flowmeter, don haka ba za a iya amfani da shi don jagorantar kula da precooling kwarara kudi. Amma za mu iya yin hukunci a kaikaice girman magudanar ruwa ta hanyar lura da matsi na baya na jirgin ruwa mai karɓa. A ƙarƙashin wasu sharuɗɗa, ana iya ƙayyade alaƙar da ke tsakanin matsi na baya na jirgin ruwa mai karɓa da kuma ruwan sanyi na farko ta hanyar nazari. Lokacin da tsarin sanyi ya ci gaba zuwa yanayin kwararar lokaci ɗaya, ana iya amfani da ainihin magudanar da aka auna ta hanyar ma'aunin zafin jiki don jagorantar sarrafa kwararar sanyi. Ana amfani da wannan hanyar sau da yawa don sarrafa cikawar ruwa na cryogenic propellant don roka.

Canjin matsin lamba na baya na jirgin ruwa ya dace da tsarin sanyi kamar haka, wanda za'a iya amfani da shi don yin hukunci da qualitatively mataki na farko: lokacin da ƙarfin shaye-shaye na jirgin ruwa ya kasance koyaushe, matsa lamba na baya zai ƙaru da sauri saboda tashin hankali. vaporization na cryogenic ruwa da farko, sa'an nan kuma sannu a hankali fada baya tare da rage yawan zafin jiki na jirgin ruwa da bututun mai karba. A wannan lokacin, ƙarfin sanyi yana ƙaruwa.

Saurara zuwa labari na gaba don wasu tambayoyi!

 

HL Cryogenic Equipment

HL Cryogenic Equipment wanda aka kafa a cikin 1992 alama ce mai alaƙa da HL Cryogenic Equipment Company Cryogenic Equipment Co., Ltd. HL Cryogenic Equipment ya himmatu ga ƙira da ƙera na Babban Vacuum Insulated Cryogenic Pipe System da Kayan Tallafi masu alaƙa don biyan buƙatun abokan ciniki daban-daban. The Vacuum Insulated Bututu da M Hose ana gina su a cikin wani babban vacuum da Multi-Layer Multi-Layer Multi-screen na musamman insulated kayan, da kuma wucewa ta cikin jerin musamman m fasaha jiyya da high vacuum magani, wanda ake amfani da canja wurin na ruwa oxygen, ruwa nitrogen. , ruwa argon, ruwa hydrogen, ruwa helium, liquefied ethylene gas LEG da liquefied yanayi gas LNG.

Jerin samfurin Vacuum Jacketed Pipe, Vacuum Jacketed Hose, Vacuum Jacketed Valve, da Mai Rarraba Mataki a cikin Kamfanin Kayan Aikin HL Cryogenic, wanda ya wuce ta jerin manyan jiyya na fasaha, ana amfani dashi don canja wurin oxygen na ruwa, nitrogen ruwa, argon ruwa, ruwa hydrogen, helium ruwa, LEG da LNG, kuma waɗannan samfuran ana ba da su don kayan aikin cryogenic (misali tankuna na cryogenic, dewars da akwatunan sanyi da sauransu) a cikin masana'antar rabuwar iska, gas, jirgin sama, lantarki, superconductor, kwakwalwan kwamfuta, taro na atomatik, abinci & abin sha, kantin magani, asibiti, bankin biobank, roba, sabbin kayan aikin injiniyan sinadarai, ƙarfe & ƙarfe, da binciken kimiyya da sauransu.


Lokacin aikawa: Fabrairu-27-2023

Bar Saƙonku