Uhlalutyo lweMibuzo eMininzi kwi-Cryogenic Liquid Pipeline Transportation (1)

Isingenisoukwenziwa

Ngokuphuhliswa kobuchwepheshe be-cryogenic, iimveliso ze-cryogenic liquid zidlala indima ebalulekileyo kwiinkalo ezininzi ezifana noqoqosho lwelizwe, ukhuselo lwesizwe kunye nophando lwezenzululwazi. Ukusetyenziswa kolwelo lwe-cryogenic lusekelwe kwindawo esebenzayo kunye nokugcinwa okukhuselekileyo kunye nokuthuthwa kweemveliso ze-cryogenic liquid, kunye nokuhanjiswa kwemibhobho ye-cryogenic liquid iqhuba yonke inkqubo yokugcina kunye nokuthutha. Ngoko ke, kubaluleke kakhulu ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle kwe-cryogenic liquid pipeline transmission. Ukuhanjiswa kwe-cryogenic liquids, kuyimfuneko ukutshintsha igesi kumbhobho ngaphambi kokudluliselwa, ngaphandle koko kunokubangela ukungaphumeleli kokusebenza. Inkqubo yokupholisa kwangaphambili ikhonkco elingenakuphepheka kwinkqubo yokuthutha imveliso ye-cryogenic liquid. Le nkqubo iya kuzisa ukothuka koxinzelelo olunamandla kunye nezinye iziphumo ezibi kumbhobho. Ukongeza, isenzeko segiza kumbhobho othe nkqo kunye nesenzeko esingazinzanga sokusebenza kwenkqubo, njengokuzaliswa kombhobho wesebe ongaboniyo, ukuzaliswa emva kokukhutshwa kwamanzi okuphumla kunye nokuzaliswa kwegumbi lomoya emva kokuvulwa kwevalve, kuya kuzisa amanqanaba ahlukeneyo eziphumo ezibi kwisixhobo kunye nombhobho. . Ngenxa yoku, eli phepha lenza uhlalutyo olunzulu kwezi ngxaki zingentla, kwaye linethemba lokufumana isisombululo ngokuhlalutya.

 

Ukufuduswa kwerhasi kumgca ngaphambi kokuhanjiswa

Ngokuphuhliswa kobuchwepheshe be-cryogenic, iimveliso ze-cryogenic liquid zidlala indima ebalulekileyo kwiinkalo ezininzi ezifana noqoqosho lwelizwe, ukhuselo lwesizwe kunye nophando lwezenzululwazi. Ukusetyenziswa kolwelo lwe-cryogenic lusekelwe kwindawo esebenzayo kunye nokugcinwa okukhuselekileyo kunye nokuthuthwa kweemveliso ze-cryogenic liquid, kunye nokuhanjiswa kwemibhobho ye-cryogenic liquid iqhuba yonke inkqubo yokugcina kunye nokuthutha. Ngoko ke, kubaluleke kakhulu ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle kwe-cryogenic liquid pipeline transmission. Ukuhanjiswa kwe-cryogenic liquids, kuyimfuneko ukutshintsha igesi kumbhobho ngaphambi kokudluliselwa, ngaphandle koko kunokubangela ukungaphumeleli kokusebenza. Inkqubo yokupholisa kwangaphambili ikhonkco elingenakuphepheka kwinkqubo yokuthutha imveliso ye-cryogenic liquid. Le nkqubo iya kuzisa ukothuka koxinzelelo olunamandla kunye nezinye iziphumo ezibi kumbhobho. Ukongeza, isenzeko segiza kumbhobho othe nkqo kunye nesenzeko esingazinzanga sokusebenza kwenkqubo, njengokuzaliswa kombhobho wesebe ongaboniyo, ukuzaliswa emva kokukhutshwa kwamanzi okuphumla kunye nokuzaliswa kwegumbi lomoya emva kokuvulwa kwevalve, kuya kuzisa amanqanaba ahlukeneyo eziphumo ezibi kwisixhobo kunye nombhobho. . Ngenxa yoku, eli phepha lenza uhlalutyo olunzulu kwezi ngxaki zingentla, kwaye linethemba lokufumana isisombululo ngokuhlalutya.

 

Inkqubo yokupholisa kwangaphambili kombhobho

Kuyo yonke inkqubo yokuhanjiswa kombhobho we-cryogenic liquid, ngaphambi kokuseka i-stable state transmission, kuya kuba nenkqubo yokupholisa kwangaphambili kunye nokutshisa kunye nokufumana inkqubo yezixhobo, oko kukuthi, inkqubo yokupholisa kwangaphambili. Kule nkqubo, umbhobho kunye nezixhobo zokufumana ukumelana noxinzelelo olukhulu lokucutheka kunye noxinzelelo lwempembelelo, ngoko kufuneka ilawulwe.

Masiqale ngohlalutyo lwenkqubo.

Yonke inkqubo yokupholisa kwangaphambili iqala ngenkqubo yobundlobongela bomphunga, kwaye emva koko ibonakala ukuhamba kwezigaba ezibini. Ekugqibeleni, ukuhamba kwesigaba esisodwa kubonakala emva kokuba inkqubo ipholile ngokupheleleyo. Ekuqaleni kwenkqubo yokupholisa, iqondo lobushushu eludongeni ngokucacileyo lidlula ubushushu bokugcwala kolwelo lwe-cryogenic, kwaye lude ludlule ubushushu bomda ophezulu wolwelo lwe-cryogenic - ubushushu obugqithileyo bokugqibela. Ngenxa yokudluliselwa kobushushu, ulwelo olukufuphi nodonga lwetyhubhu luyafudunyezwa kwaye luvuthelwe ngoko nangoko ukwenza ifilimu yomphunga, ejikeleze ngokupheleleyo udonga lwetyhubhu, oko kukuthi, ukubilisa kwefilimu kwenzeka. Emva koko, kunye nenkqubo yokupholisa kwangaphambili, iqondo lobushushu bodonga lwetyhubhu liyehla ngokuthe ngcembe ngaphantsi komda wobushushu obuphezulu, kwaye emva koko iimeko ezifanelekileyo zokubilisa inguqu kunye nokubiliswa kweqamza kwenziwa. Ukuguquguquka okukhulu koxinzelelo kwenzeka ngexesha le nkqubo. Xa ukupholisa kwangaphambili kuqhutyelwa kwinqanaba elithile, amandla obushushu bombhobho kunye nokuhlasela kobushushu kokusingqongileyo akuyi kushushumbisa ulwelo lwe-cryogenic kwiqondo lobushushu lokugcwala, kwaye imeko yokuhamba kwesigaba esisodwa iya kuvela.

Kwinkqubo ye-vaporization enzulu, ukuhamba okumangalisayo kunye nokuguquguquka koxinzelelo kuya kuveliswa. Kuyo yonke inkqubo yokuguquguquka koxinzelelo, uxinzelelo oluphezulu olwenziwe okokuqala emva kokuba ulwelo lwe-cryogenic lungene ngokuthe ngqo kumbhobho oshushu luphezulu lwe-amplitude kuyo yonke inkqubo yokuguquguquka koxinzelelo, kwaye i-wave yoxinzelelo inokuqinisekisa amandla oxinzelelo lwenkqubo. Ngoko ke, kuphela igagasi lokuqala loxinzelelo olufundwa ngokubanzi.

Emva kokuba ivalve ivuliwe, ulwelo lwe-cryogenic lungena ngokukhawuleza kumbhobho phantsi kwesenzo somohluko woxinzelelo, kwaye ifilimu yomphunga eyenziwe ngumphunga yahlula ulwelo eludongeni lombhobho, yenze i-axial flow concentric. Ngenxa yokuba i-coefficient yokumelana nomphunga incinci kakhulu, ngoko ke izinga lokuhamba kolwelo lwe-cryogenic likhulu kakhulu, kunye nenkqubela phambili, iqondo lokushisa lolwelo ngenxa yokufunxa ubushushu kunye nokunyuka ngokuthe ngcembe, ngokufanelekileyo, uxinzelelo lwemibhobho luyanda, isantya sokuzalisa siyacotha. phantsi. Ukuba umbhobho ude ngokwaneleyo, ukushisa kwamanzi kufuneka kufikelele kwi-saturation kwinqanaba elithile, apho ulwelo luyeka ukuqhubela phambili. Ubushushu obuvela eludongeni lombhobho ukuya kulwelo lwe-cryogenic busetyenziselwa ukuphuphuma, ngeli xesha isantya somphunga sinyuswe kakhulu, uxinzelelo kumbhobho nalo lunyukile, lunokufikelela kwi-1. 5 ~ 2 amaxesha oxinzelelo lokungena. Phantsi kwentshukumo yomehluko woxinzelelo, inxalenye yolwelo iya kuqhutywa umva kwitanki yokugcina ulwelo lwe-cryogenic, okubangela ukuba isantya sokuveliswa komphunga sibe sincinci, kwaye ngenxa yokuba inxalenye yomphunga oveliswa kukukhutshwa kombhobho, ukuhla koxinzelelo lombhobho, emva kokuba Ithuba lexesha, umbhobho uya kuseka kwakhona ulwelo kwiimeko zokumahluko woxinzelelo, isenzeko siyakuvela kwakhona, siyaphinda-phinda. Nangona kunjalo, kule nkqubo ilandelayo, ngenxa yokuba kukho uxinzelelo oluthile kunye nenxalenye yolwelo kumbhobho, ukunyuka koxinzelelo okubangelwa yi-liquid entsha kuncinci, ngoko i-peak yoxinzelelo iya kuba yincinci kuneyona nto yokuqala.

Kuyo yonke inkqubo yokupholisa kwangaphambili, inkqubo ayifanele ithwale impembelelo yamaza oxinzelelo olukhulu, kodwa kufuneka ithwale uxinzelelo olukhulu lokuncipha ngenxa yokubanda. Isenzo esidibeneyo sababini sinokubangela umonakalo wesakhiwo kwisistim, ngoko kufuneka kuthathwe amanyathelo ayimfuneko ukuyilawula.

Ekubeni izinga lokuhamba kwe-precooling lichaphazela ngqo inkqubo yokupholisa kwangaphambili kunye nobukhulu boxinzelelo lwe-shrinkage ebandayo, inkqubo yokupholisa iyakwazi ukulawulwa ngokulawula izinga lokuhamba kwe-precooling. Umgaqo-nkqubo ofanelekileyo wokukhetha umyinge wokuhamba kwe-precooling kukunciphisa ixesha lokupholisa kwangaphambili ngokusebenzisa isantya esikhulu sokuhamba kwe-precooling kwisiseko sokuqinisekisa ukuba ukuguquguquka koxinzelelo kunye noxinzelelo olubandayo lwe-shrinkage aludluli uluhlu oluvumelekileyo lwezixhobo kunye nemibhobho. Ukuba isantya sokuhamba kokupholisa kwangaphambili sincinci kakhulu, ukusebenza kokugquma kwemibhobho akulunganga kumbhobho, akunakuze kufikelele kwindawo yokupholisa.

Kwinkqubo yokupholisa kwangaphambili, ngenxa yesiganeko sokuhamba kwezigaba ezimbini, akunakwenzeka ukulinganisa isantya sangempela sokuhamba kunye ne-flowmeter eqhelekileyo, ngoko ayinakusetyenziselwa ukukhokela ukulawulwa kwesantya sokuhamba kwangaphambili. Kodwa sinokugweba ngokungangqalanga ubungakanani bokuhamba ngokubeka iliso kuxinzelelo lwangasemva lwesitya esifumanayo. Ngaphantsi kweemeko ezithile, ubudlelwane phakathi koxinzelelo lwangasemva lwesitya esifumanayo kunye nokuhamba kwangaphambili kokupholisa kunokumiselwa ngendlela yokuhlalutya. Xa inkqubo yokupholisa kwangaphambili iqhubela phambili kwinqanaba elilodwa lokuhamba, ukuhamba kwangempela kulinganiswa yi-flowmeter ingasetyenziselwa ukukhokela ukulawulwa kokuhamba kwangaphambili. Le ndlela isoloko isetyenziselwa ukulawula ukuzaliswa kwe-cryogenic liquid propellant ye-rocket.

Ukutshintshwa koxinzelelo lwangasemva kwinqanawa efumanayo ihambelana nenkqubo yokupholisa kwangaphambili ngolu hlobo lulandelayo, olungasetyenziselwa ukugweba ngokufanelekileyo inqanaba le-precooling: xa umthamo wokukhupha umkhumbi ofumanayo uhlala, uxinzelelo lwasemva luya kunyuka ngokukhawuleza ngenxa yobundlobongela. Ukwenziwa ngumphunga kolwelo lwe-cryogenic ekuqaleni, kwaye emva koko ngokuthe ngcembe ubuyela umva kunye nokuhla kweqondo lobushushu kwinqanawa efumanayo kunye nombhobho. Ngeli xesha, amandla okupholisa kwangaphambili ayanda.

Jonga inqaku elilandelayo ngeminye imibuzo!

 

HL Izixhobo zeCryogenic

I-HL Cryogenic Equipment eyasungulwa kwi-1992 yi-brand ehambelana ne-HL Cryogenic Equipment Company Cryogenic Equipment Co., Ltd. I-HL Cryogenic Equipment izibophelele ekuyilweni nasekuveliseni iNkqubo yeMibhobho ye-Vacuum ye-High Vacuum Insulated Cryogenic kunye neZixhobo zeNkxaso ezinxulumeneyo ukuhlangabezana neemfuno ezahlukeneyo zabathengi. I-Vacuum Insulated Pipe kunye ne-Flexible Hose yakhiwe kwindawo yokucoca ephezulu kunye ne-multi-layer multi-screen special insulated materials, kwaye idlula kuthotho lonyango olungqongqo kakhulu lobugcisa kunye nonyango oluphezulu lwevacuum, olusetyenziselwa ukuhanjiswa kweoksijini elulwelo, initrogen engamanzi. , i-argon yolwelo, i-hydrogen engamanzi, i-helium engamanzi, igesi ye-ethylene engamanzi ULEG kunye negesi yendalo enyibilikisiweyo ye-LNG.

Uluhlu lwemveliso ye-Vacuum Jacketed Pipe, i-Vacuum Jacketed Hose, iVacuum Jacketed Valve, kunye neSigaba Sokwahlula kwi-HL Cryogenic Equipment Company, edlula uluhlu lwezonyango ezingqongqo kakhulu, zisetyenziselwa ukuhanjiswa kwe-oksijini yolwelo, i-nitrogen engamanzi, i-argon yolwelo, i-hydrogen engamanzi, i-helium yolwelo, i-LEG kunye ne-LNG, kwaye ezi mveliso zisetyenziselwa izixhobo ze-cryogenic (umzekelo, amatanki e-cryogenic, i-dewars kunye neebhokisi ezibandayo njl. isiselo, ikhemesti, isibhedlele, i-biobank, irabha, izinto ezintsha zokwenza ubunjineli bemichiza, intsimbi kunye nentsimbi, kunye nophando lwezenzululwazi njl.


Ixesha lokuposa: Feb-27-2023

Shiya uMyalezo Wakho