1 Gabatarwa
Masana'antar LNG ta China ta samar da cikakkiyar sarkar masana'antu daga sharar gida, sufuri, samar da iskar gas zuwa amfani da tashar jiragen ruwa, kuma saurin ci gabanta da balagarta suna ƙara zama cikakke, wanda hakan ya kafa harsashin ci gaba mai kyau don amfani da iskar gas a China. A halin yanzu, an gina tashoshin LNG guda 14 na bakin teku kuma ana kan gina su a China, kuma jimlar ƙarfin karɓar zai wuce tan miliyan 50 / shekara bayan an kammala su. Har yanzu akwai ayyuka da yawa a ƙarƙashin aikin farko ⑴. Masana'antar sharar gida, tashoshin tauraron dan adam da kuma mai da abubuwan hawa da jiragen ruwa suma suna ci gaba da haɓaka cikin sauri. Ya zuwa watan Mayu na 2013, an gina masana'antar sharar gida sama da 50 kuma an fara aiki a duk faɗin ƙasar, tare da jimlar ƙarfin sharar gida na 23 m3 / rana. Halayen ajiyar LNG a -162 ℃ da matsin lamba na yau da kullun, yanayin sufuri na musamman, canjin matsin lamba na tankin ajiya na LNG yayin saukewa da cikewa, zubar zafi na tankin ajiya da bututun mai, da sauransu, za su samar da iskar gas mai tururi mai yawa, wato bola. Domin kare aiki da amincin jiragen ruwa na jigilar kaya, tankunan ajiya da bututun mai, ya zama dole a yi la'akari da kula da adadi mai yawa na dazuzzuka da kuma kiyaye daidaiton matsin lamba mai ƙarfi don kiyaye matsin lamba a cikin iyakar sarrafawa mai aminci. Saboda haka, don manufar aminci aiki da adana makamashi, ana nazarin tsarin kula da dazuzzuka a ƙarƙashin yanayi daban-daban don inganta saurin dawo da dazuzzuka da rage ɓarnar iskar gas.
Tsarin hanya 2
Ga tashar karɓar ruwa mai girman 4 x 160000m3, ƙimar fitar da ruwa a kowace rana shine 0. Dangane da lissafin 05%, fitar da ruwa a kowace rana na LNG shine kimanin mita cubic 320, kuma rijiyar da aka samar tana da kimanin mita cubic 192000, kimanin tan 144 a kowace rana; A ƙarƙashin yanayin sauke kaya, adadin rijiyar da aka samar ta hanyar musayar zafi da canjin matsin lamba zai ninka sau da yawa ko ma sau goma fiye da na al'ada. Kula da rijiyar da tsari mai ma'ana ba wai kawai zai iya rage lalacewar kayan aiki da ma'aikata ba, har ma yana adana makamashi, rage amfani da kuma rage farashi.
Domin yin nazarin tsarin maganin datti a ƙarƙashin yanayi daban-daban, ta hanyar ɗaukar tashar karɓa da tashar tauraron ɗan adam a matsayin misali, ana la'akari da zaɓin tsarin daga adadin dattin. A ɗauki tashar karɓa a Fujian (tankunan ajiya 4 x 160000m3) da tashar tauraron ɗan adam a Shandong (tankunan ajiya 10 100m3). Tushen kwatancen: nau'ikan tankuna daban-daban suna da ƙimar ƙafewa daban-daban, kuma hanyoyin magani daban-daban za su shafi sarrafa dattin daga baya. Za a zaɓi tsarin magani mai dacewa don nau'ikan tankuna daban-daban da sikelin maganin LNG.
Maganin gargajiya guda 3 na bokanci
Gabaɗaya akwai hanyoyi guda huɗu na magance matsalar da aka haifar, ɗaya ita ce sake danshi; Na biyu, matsi kai tsaye; 3. Konewa ko fitar da iska; Na huɗu, mayar da shi ga mai ɗaukar iskar gas.
(1) Tsarin sake sarrafa danshi. Bayan wucewa ta cikin tankin raba iskar gas da ruwa, danshi yana shiga cikin mashin ɗin kwalta. Dashi mai matsin lamba yana shiga cikin Recondenser kuma ana haɗa shi da LNG da aka fitar wanda aka matse shi zuwa matsin lamba iri ɗaya. Ana tattara dashi ta hanyar ƙarfin sanyaya da LNG mai sanyi ya ɗauka sannan a haɗa shi da LNG by-pass zuwa cikin famfon mai matsin lamba mai yawa, sannan a turo shi ta hanyar vaporizer sannan a tura shi zuwa hanyar sadarwa ta bututu mai matsin lamba mai yawa (2). An nuna jadawalin kwararar tsarin sake haɗa dashi na tashar a cikin Hoto na 1.
(2) Tsarin matsewa kai tsaye. Ana fitar da Bog kai tsaye zuwa hanyar sadarwa ta bututu bayan an matse shi ta hanyar matsewa.
(3) Konawa ko fitar da iska. Idan matsin lamba a cikin tanki da ɗakin ya kai wani ƙima, sau da yawa ana amfani da konewar iska ko ƙonewa don rage matsin lamba zuwa wuri mai aminci da za a iya sarrafawa. Konewar iska ko ƙonewa zai zama babban ɓatar da iskar gas. Saboda haka, wannan hanya ma'auni ne na maganin aminci idan akwai gaggawa.
(4) Ana jigilar jirgin ruwa zuwa jirgin ruwa na LNG ta hannun dawowa don daidaita matsin lamba da cike injin da aka samar ta hanyar sauke tankin ajiya na LNG da ke cikin jirgin. Wannan hanyar tana da sauƙi kuma mai sauri, amma ta dace ne kawai don sauke jirgin ruwa na LNG.
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Kamfanin Sichuan Hengzhong Automation Equipment Co., Ltd.
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Lokacin Saƙo: Yuni-26-2022