Kuyeza kuthamanga kwa mkati ndikofunikira kwambiri pakugwiritsa ntchito rabara ya ethylene-propylene pogwiritsa ntchito madzi a ethylene opanikizika kwambiri komansopropyleneKukwera kwadzidzidzi kwa mphamvu kuchokera ku nthunzi ya cryogenic mu thanki yosungiramo madzi ya ethylene kungapangitse kuti kuphulika ndi kutayikira kukhale koopsa. Deta ya NIST ikusonyeza kuti kukwera kwa bar imodzi pamwamba pa malire mu thanki yosungiramo ya ethylene ya 50 m³ kumatha kutulutsa nthunzi ya 20+ kg mkati mwa masekondi, zomwe zimapangitsa kuti yankho la nthawi yeniyeni likhale lofunika kwambiri.
Kudalirika kwa njira m'mafakitale a rabara a ethylene-propylene kumafuna ma transmitter amadzimadzi omwe amatha kupirira kukwera kwa mpweya wosungunuka komanso kusinthasintha kwachangu komwe kumachitika nthawi zambiri m'magawo a reactor ndi mapaipi. Kupatuka kosayang'aniridwa kwa kuthamanga kungayambitse kutsekedwa kwa zinthu zomwe sizinakonzedwe kapena kutsekedwa kosakonzekera, zomwe zimachepetsa kutulutsa ndi 5% pachaka m'mafakitale ena. Kukhazikitsa bwino kwa transmitter ya kuthamanga kumathandizira kuti zinthu ziyambe kugwira ntchito bwino.ethyleneChitetezo cha thanki yosungiramo zinthu popereka deta mwachangu kuti makina otetezera agwirizane.
Thanki Yosungiramo Ethylene Yamadzimadzi
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Ma transmitter a kupanikizika kwa mafakitale monga ma Lonnmeter amapereka kulondola kwa ±0.1% FS pamlingo wogwirira ntchito wa 100–500 bar womwe umapezeka m'makina awa. Kuyang'anira kupanikizika panthawi yoyendetsa madzi a ethylene kumateteza ku kutuluka kwa madzi ndi kupanikizika kwambiri - zomwe zimayambitsa zoopsa m'gawoli. Kuyeza kolimba mkati mwa mzere kumathandizira kugwira ntchito kotetezeka, kosalekeza komanso kumawonjezera phindu m'malo osinthasintha.
Chiyambi
Kuyeza kuthamanga kwa mpweya mkati kumapereka mayankho ofulumira komanso olondola ofunikira pakulamulira copolymerization ya rabara ya ethylene-propylene. Madzi a ethylene ndi propylene okhala ndi kuthamanga kwambiri amafunika malire olimba a kuthamanga panthawi yosamutsa ndi kuchitapo kanthu. Kusinthasintha kwadzidzidzi kwa kuthamanga kwa madzi a ethylene—nthawi zambiri chifukwa cha kuphulika kwa cryogenic—kungayambitse kutsekedwa kwa chitetezo kapena kulephera kwakukulu ngati sikunazindikirike nthawi yomweyo. Chitetezo cha thanki yosungiramo ethylene chimadalira kuwerenga kosalekeza kuti chiteteze kutayikira ndi kupanikizika kwambiri. Chotumizira kuthamanga kwa madzi cha Lonnmeter pa intaneti cha zakumwa chimayang'anira kusinthaku nthawi yeniyeni, kuwonetsa molondola momwe zinthu zilili. Zotumizira kuthamanga kwa madzi m'mafakitale zimasunga muyeso wokhazikika ngakhale kugwedezeka, kutenthetsa, kapena kuzizira komwe kumachitika m'mafakitale a rabara ya ethylene-propylene. Kukhazikitsa bwino chotumizira kuthamanga kumachepetsa kusuntha kwa zida ndi kusokoneza chizindikiro, kuthandizira kutsatira malamulo ndi kupewa ngozi. Kuyeza mkati kumateteza antchito, katundu, ndi umphumphu wa chinthu panthawi yonyamula ndi kusunga madzi a ethylene, kuonetsetsa kuti ntchito ikuyenda bwino pa ntchito zonse za rabara ya ethylene-propylene.
Chithunzi cha Ethylene
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Chidule cha Njira Zamakampani
Madzi a ethylene amapanikizidwa pa 5–15 MPa ndipo amapopedwa kudzera m'mapaipi okhala ndi propylene kupita ku ma reactor apadera a ethylene-propylene.rabalantchito. Ma transmitter a pressure transmitter, monga transmitter ya Lonnmeter ya pa intaneti ya zakumwa, amatsimikiza kuchuluka kolondola kwa chakudya kuti asunge mawonekedwe a copolymer. Matanki osungira madzi a ethylene amagwiritsa ntchito vacuum insulation yokhala ndi makoma awiri, kuchepetsa kutentha kwa kutentha pansi pa 0.022 W/(m·K), kuchepetsa zoopsa zoyatsira kutentha. Kuyika kwa transmitter ya pressure inline ndikofunikira pa matanki onse osungira a ethylene kuti athe kuzindikira kutuluka kwa madzi mwachangu komanso kuthamanga kwa mpweya, kuthandizira chitetezo cha mayendedwe a ethylene liquid ndi umphumphu wa chakudya cha reactor. Kuzizidwa ndi kulekanitsa kwa gasi kumaonetsetsa kuti propylene imakhala ndi malo pakati pa 35–70%, zomwe zimapangitsa kuti zinthu ziyende bwino. Ma compounds a rabara a ethylene-propylene omalizidwa amasamutsidwa ndikusungidwa pa 0.8–1.1 MPa, ndi kuyang'aniridwa kosalekeza kuti apewe ngozi za utsi ndikusunga kudalirika kwa zinthu zamafakitale a rabara a ethylene-propylene.
Mavuto mu Kuyeza Kupanikizika Kwapakati
Madzi a ethylene osungunuka m'matanki osungira okhala ndi makoma awiri, otetezedwa ndi vacuum amawonetsa makina otumizira kuthamanga kwa madzi pa intaneti kuti asinthe kuthamanga mwachangu. Kusinthasintha komwe kumachitika chifukwa cha nthunzi kumapitirira 25 bar/min pazochitika zomwe zasokonekera, zomwe zimafuna ma transmitter okhala ndi nthawi yoyankha ya millisecond. Chitetezo cha thanki yosungiramo ethylene chimadalira muyeso wa mkati mwa 24/7, chifukwa kutayika kwa insulation kapena kuwonetsedwa ku magwero otentha kungayambitse kupsinjika koopsa mkati mwa mphindi zochepa. Mpweya wosungunuka ndi propylene yogwira ntchito mu rabara ya ethylene-propylene zimayambitsa kusakhazikika kwakanthawi, kuphatikizapo kukwera kwa sensor mpaka ±1% yonse, zomwe zimavuta kuwongolera njira. Ma transmitter opanikizika m'mafakitale amakumana ndi kusokonezedwa ndi insulation ya njira, kugwedezeka, ndi condensation, zomwe zimawononga kulondola kwa sensor ndi 0.5% kapena kuposerapo ndikuchepetsa nthawi ya moyo. Kukhazikitsa kwa transmitter ya kuthamanga m'mafakitale a rabara ya ethylene-propylene kumafuna mawaya olimba komanso nyumba zotetezeka ku nyengo, chifukwa kutentha kozungulira nthawi zambiri kumapitirira 45°C ndipo kuchuluka kwa kugwedezeka kumafika 5 g. Ma protocol a chitetezo cha mayendedwe amadzimadzi a ethylene amafuna mayankho achangu kuchokera ku ma transmitter apaintaneti kupita ku ma interlocks achitetezo, chifukwa kutuluka kwa madzi ndi kupanikizika kwambiri m'mizere yosamutsira kumatha kupanga zosakaniza zophulika mkati mwa masekondi.
Ubwino Wophatikiza Zotumiza Zopanikizika Zamkati
Kuwerenga kwa kuthamanga kwa madzi nthawi yeniyeni kuchokera ku chotumizira cha kuthamanga kwa madzi pa intaneti kumathandiza kulamulira nthawi yomweyo panthawi ya copolymerization ya rabara ya ethylene-propylene. Kuyeza kwa mzere kumachepetsa chiopsezo cha kusintha kwa zinthu m'ma reactor okhala ndi madzi a ethylene opanikizika ndi propylene, zomwe zimachepetsa kutsekedwa kosakonzekera ndi 32% (ICIS, 2024).
Kuzindikira kutayikira mwachangu ndi kupanikizika kwambiri m'matanki osungira madzi a ethylene ndi mapaipi opangira zinthu kumafupikitsa nthawi yoyankhira. Kuyankha mwachindunji kwa masensa kumayambitsa kutsekeka kwa chitetezo malire asanafike, zomwe ndizofunikira kwambiri pachitetezo cha thanki yosungiramo ethylene. Kafukufuku akuwonetsa kuti kuchitapo kanthu mwachangu kumaletsa 60% ya zochitika zomwe zingatuluke (Process Safety Progress, 2025).
Kuyang'anira njira zoyendetsera ntchito kumachitika pogwiritsa ntchito ma transmitter opanikizika a mafakitale pamalo ofunikira kwambiri. Izi zimachepetsa kulowererapo kwa ogwiritsa ntchito ndipo zimathandiza kuti njira zonse zoyendetsera ntchito zizichitika m'mafakitale a rabara a ethylene-propylene. Mafakitale amanena kuti kusintha kwa makina pamanja kwatsika ndi 17% poyerekeza ndi kugwiritsa ntchito bwino masensa (Chem. Eng. J., 2024).
Deta yolondola ya kuthamanga kwa madzi imachepetsa kutayika kwa madzi a ethylene panthawi yolekanitsa, kusamutsa, ndi kusungira. Zomera zimawonjezera zokolola ndi 4–8%, zomwe zimachepetsa kwambiri ndalama zogwirira ntchito.
Kukhazikitsa makina otumizira mpweya omwe amakwaniritsa zofunikira zofunika kwambiri pa chitetezo kumasungabe kutsatira miyezo ya boma ya ntchito zoopsa komanso zoyaka moto. Izi zimapangitsa kuti pakhale mbiri yabwino kwambiri yowunikira ntchito zonse za rabara ya ethylene-propylene komanso chitetezo cha kayendedwe ka madzi a ethylene.
Pemphani Mtengo
Lonnmeter imapereka chotumizira mphamvu pa intaneti chodziwika bwino cha zakumwa, chopangidwa kuti chigwirizane ndi zofunikira kwambiri za rabara ya ethylene-propylene. Akatswiri a Lonnmeter amapereka chithandizo chaukadaulo pakusankha chotumizira mphamvu pa intaneti, chokonzedwa kuti chigwirizane ndi zovuta za ntchito komanso zinthu zoyera kwambiri. Lumikizanani ndi akatswiri kuti mupeze mayankho.
Nthawi yotumizira: Januwale-21-2026
