Ukulinganisa uxinzelelo oluphakathi kubalulekile ekusetyenzisweni kwerabha ye-ethylene-propylene equka ulwelo lwe-ethylene olunoxinzelelo oluphezulu kunyeipropyleneUkunyuka koxinzelelo ngequbuliso ngenxa yokufuma kwe-cryogenic kwitanki yokugcina ulwelo lwe-ethylene kunokunyusa umngcipheko wokuqhuma kunye nokuvuza. Idatha ye-NIST ibonisa ukuba ukunyuka kwe-1 bar ngaphezu komda kwitanki yokugcina i-ethylene engama-50 m³ kunokukhupha umphunga ongaphezu kwama-20 kg kwimizuzwana, okwenza impendulo yexesha langempela ibe yinto ebalulekileyo.
Ukuthembeka kwenkqubo kumashishini erabha e-ethylene-propylene kufuna ii-transmitter zoxinzelelo lolwelo ezikwi-intanethi ezimelana nokuqhekeka kwegesi enyibilikisiweyo kunye nokuguquguquka okukhawulezayo okuqhelekileyo kwizigaba ze-reactor kunye nephayiphi. Ukuphambuka okungajongwanga kuxinzelelo kunokukhokelela kwimveliso engakhange icwangciswe okanye ukuvalwa okungacwangciswanga, okunciphisa imveliso ngaphezulu kwe-5% ngonyaka kwezinye izityalo. Ukufakelwa ngokufanelekileyo kwe-transmitter yoxinzelelo kuqinisekisai-ethyleneukhuseleko lwetanki yokugcina ngokubonelela ngedatha ekhawulezileyo kwiinkqubo zokhuseleko ezidibeneyo.
Itanki yokugcina i-ethylene engamanzi
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Iitransmitter zoxinzelelo lwemizi-mveliso ezifana neemodeli zeLonnmeter zibonelela ngokuchaneka kwe-±0.1% FS kulo lonke uluhlu lokusebenza lwe-100–500 bar oluqhelekileyo kwezi nkqubo. Ukubeka iliso kuxinzelelo ngexesha lokuthuthwa kolwelo lwe-ethylene kukhusela ukuvuza kunye noxinzelelo olugqithisileyo—izizathu eziphambili zeziganeko eziyingozi kweli candelo. Ukulinganisa okungqongqo ngaphakathi kwemigca kuxhasa ukusebenza okukhuselekileyo, okuqhubekayo kwaye kwandisa isivuno kwiindawo eziguquguqukayo.
Intshayelelo
Ukulinganisa uxinzelelo oluphakathi kunika impendulo ekhawulezileyo nechanekileyo ebalulekileyo kulawulo lwe-ethylene-propylene rubber copolymerization. Ulwelo lwe-ethylene oluphezulu kunye ne-propylene zifuna imida yoxinzelelo oluqinileyo ngexesha lokudluliselwa kunye nokusabela. Ukuguquguquka ngequbuliso kuxinzelelo lwetanki yokugcina ulwelo lwe-ethylene—okudla ngokubangelwa kukufuma kwe-cryogenic—kunokubangela ukungenelela kokhuseleko okanye ukusilela okukhulu ukuba akubonwanga kwangoko. Ukhuseleko lwetanki yokugcina i-ethylene luxhomekeke ekufundweni okuqhubekayo ukuze kukhuselwe ukuvuza kunye noxinzelelo olugqithisileyo. I-Lonnmeter ekwi-intanethi yothumelo loxinzelelo lwe-liquids ijonga olu tshintsho ngexesha langempela, ibonisa ngokuchanekileyo iimeko zenkqubo. Ii-transmitters zoxinzelelo lwemizi-mveliso zigcina umlinganiselo ozinzileyo nangona kungcangcazela, ukugquma, okanye ukufuma okuqhelekileyo kumashishini erabha e-ethylene-propylene. Ukufakwa ngokufanelekileyo kwe-transmitter yoxinzelelo kunciphisa ukutyibilika kwezixhobo kunye nokuphazamiseka kwesignali, kuxhasa ukuthotyelwa komthetho kunye nokuthintela iingozi. Ukulinganisa okuphakathi kukhusela abasebenzi, iiasethi, kunye nokuthembeka kwemveliso ngexesha lokuthuthwa kunye nokugcinwa kolwelo lwe-ethylene, ukuqinisekisa ukusebenza okungenamthungo kuzo zonke izicelo zerabha ye-ethylene-propylene.
Umzobo we-Ethylene
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Isishwankathelo seNkqubo yoShishino
Ulwelo lwe-ethylene luxinzelelwa kwi-5–15 MPa kwaye luphonswa ngemibhobho enepropylene kwii-reactors ezikhethekileyo ze-ethylene-propylene.irabhaizicelo. Iitransmitter zoxinzelelo lwemizi-mveliso, ezifana netransmitter yoxinzelelo ekwi-intanethi yeLonnmeter yolwelo, ziqinisekisa amazinga okutya achanekileyo ukugcina iimpawu ze-copolymer. Iitanki zokugcina ulwelo lwe-ethylene zisebenzisa i-vacuum insulation eneendonga ezimbini, zinciphisa ukuhanjiswa kobushushu ngaphantsi kwe-0.022 W/(m·K), zinciphisa umngcipheko wokutsha kobushushu. Ukufakwa kwetransmitter yoxinzelelo oluphakathi kuyimfuneko kuzo zonke iitanki zokugcina i-ethylene ukuze kuvumeleke ukuvuza kwangoko kunye nokufunyaniswa koxinzelelo, kuxhasa ukhuseleko lokuthuthwa kolwelo lwe-ethylene kunye nokuthembeka kokutya kwe-reactor. Ukupholisa kunye nokwahlukana kwesigaba segesi kuqinisekisa iithagethi zoxinzelelo lwe-propylene phakathi kwe-35–70%, kubonelela ngeemeko ezifanelekileyo zokusabela kwe-copolymerization. Iikhompawundi zerabha ze-ethylene-propylene ezigqityiweyo zidluliselwa kwaye zigcinwe kwi-0.8–1.1 MPa, kunye nokubeka iliso rhoqo ukuthintela iingozi zokufuma kunye nokugcina ukuthembeka kwezinto kwimizi-mveliso zerabha ye-ethylene-propylene.
Imingeni ekulinganiseni uxinzelelo oluphakathi
Ulwelo lwe-ethylene oluyi-cryogenic kwiitanki zokugcina ezineendonga ezimbini, ezifakwe i-vacuum cleaner luveza iinkqubo zokuhambisa uxinzelelo lolwelo kwi-intanethi kutshintsho olukhawulezileyo loxinzelelo. Ukuguquguquka okubangelwa ngumphunga kudlula i-25 bar/min kwiimeko eziphazamisayo, nto leyo efuna ii-transmitters ezineempendulo ze-millisecond. Ukhuseleko lwetanki yokugcina i-ethylene luxhomekeke kumlinganiselo we-inline wama-24/7, njengoko ukulahleka kwe-insulation okanye ukuvezwa kwimithombo yobushushu kunokukhokelela kuxinzelelo oluyingozi kwimizuzu embalwa. Iigesi ezinyibilikisiweyo kunye ne-reactive propylene kwizicelo zerabha ye-ethylene-propylene zibangela ukungazinzi okwethutyana, kubandakanya ukunyuka kwe-sensor ukuya kuthi ga kwi-±1% epheleleyo, nto leyo eyenza kube nzima ukulawula inkqubo. Ii-transmitters zoxinzelelo lwemizi-mveliso zijongene nokuphazamiseka kwi-process insulation, vibration, kunye ne-condensation, nto leyo ethoba ukuchaneka kwe-sensor nge-0.5% nangaphezulu kwaye inciphise ubomi. Ukufakwa kwe-pressure transmitter kwimizi-mveliso yerabha ye-ethylene-propylene kufuna iintambo eziqinileyo kunye neendawo ezimelana nemozulu, njengoko amaqondo obushushu ahlala edlula i-45°C kwaye amanqanaba okungcangcazela afikelela kwi-5 g. Iiprotokholi zokhuseleko lokuthuthwa kolwelo lwe-ethylene zifuna impendulo ekhawulezileyo evela kwiitransmitter zoxinzelelo ezikwi-intanethi ukuya kwiindawo zokhuseleko, njengoko ukuvuza kunye noxinzelelo olugqithisileyo kwimigca yokudlulisa kunokwenza imixube eqhumayo kwimizuzwana embalwa.
Iingenelo zokudibanisa ii-Inline Pressure Transmitters
Ukufundwa koxinzelelo ngexesha langempela oluvela kwi-pressure transmitter ekwi-intanethi yolwelo kwenza ukuba ulawulo oluvaliweyo lukhawuleze ngexesha le-ethylene-propylene rubber copolymerization. Ukulinganiswa okucwangcisiweyo kunciphisa umngcipheko weempendulo ezibalekayo kwii-reactors eziqulethe i-ethylene liquid kunye ne-propylene ecinezelweyo, kunciphisa ukuvalwa okungacwangciswanga ukuya kuthi ga kwi-32% (ICIS, 2024).
Ukufunyanwa kokuvuza okukhawulezileyo kunye noxinzelelo olugqithisileyo kwiitanki zokugcina ulwelo lwe-ethylene kunye nemibhobho yenkqubo kunciphisa amaxesha okuphendula. Impendulo ye-sensor ethe ngqo ibangela ukunxibelelana kokhuseleko ngaphambi kokuba kufikelelwe kwimida enobungozi, nto leyo ebalulekileyo kukhuseleko lwetanki yokugcina i-ethylene. Uphando lubonisa ukuba ukungenelela ngokukhawuleza kuthintela i-60% yeziganeko ezinokubakho zokukhululwa (Process Safety Progress, 2025).
Ulawulo lwenkqubo oluzenzekelayo lwenziwa kusetyenziswa iitransmitter zoxinzelelo lwemizi-mveliso kwiindawo ezibalulekileyo. Ezi zinto zinciphisa ukungenelela kwabaqhubi kwaye zivumela ukwenziwa kwe-automation epheleleyo kwimizi-mveliso yerabha ye-ethylene-propylene. Izityalo zibika ukwehla kwe-17% kwi-frequency yokulungiswa ngesandla ngokufakwa kwe-sensor ngokufanelekileyo (Chem. Eng. J., 2024).
Idatha yoxinzelelo oluchanekileyo inciphisa ukulahleka kolwelo lwe-ethylene ngexesha lokuhlukaniswa, ukudluliselwa, kunye nokugcinwa. Izityalo zonyusa isivuno sezinto nge-4–8%, nto leyo enciphisa kakhulu iindleko zokusebenza.
Ukufakelwa kwesixhobo sokuhambisa uxinzelelo esihlangabezana nemigangatho ebalulekileyo yokhuseleko kugcina ukuthotyelwa kwemigangatho karhulumente kwimisebenzi enobuthi netshayo. Oku kudala irekhodi elomeleleyo lokuhlolwa okugubungela zonke izicelo zerabha ye-ethylene-propylene kunye nokhuseleko lokuthuthwa kolwelo lwe-ethylene.
Cela iNtetho
I-Lonnmeter inika i-transmitter yoxinzelelo olukwi-intanethi eqinisekisiweyo ukuba iyasebenza kwiilwelo, yenzelwe iimfuno ezingqongqo zezicelo zerabha ye-ethylene-propylene. Iingcali ze-Lonnmeter zibonelela ngenkxaso yobugcisa ekukhetheni i-transmitter yoxinzelelo lolwelo olukwi-intanethi, eyenzelwe iimeko ezinzima zenkqubo kunye ne-high-purity liquid media. Nxibelelana ukuze ufumane izisombululo zobungcali.
Ixesha leposi: Jan-21-2026
