Nā hana palekana no nā pahu mālama kinoea kūlohelohe

Liquefied Natural Gas (LNG), nona ka mea nui he methane, ua ʻike ʻia ʻo ia ka ikehu fossil maʻemaʻe loa ma ka honua. ʻAʻole waihoʻoluʻu, ʻaʻala ʻole, ʻaʻohe mea ʻawaʻawa a ʻaʻole ʻino. ʻO ke kaʻina hana e hoʻomaʻemaʻe mua i ke kinoea kūlohelohe i hana ʻia i loko o ke kahua kinoea, a ma hope o ke ʻano o ka liquefaction wela haʻahaʻa, lawe ʻia e ka moku LNG. He liʻiliʻi loa ka haumia o ka ea ma hope o ka puhi ʻana, a hoʻokuʻu i ka wela nui, no laila, ʻo ke kinoea liquefied maoli kahi kumu ikehu holomua. I ka mālama ʻana i nā pahu mālama kinoea kūlohelohe, pono e nānā pono i ka pale pono o nā pahu mālama e hoʻonui i ke ola lawelawe o nā pahu mālama LNG.

Nā hana pale nonā pahu mālama kinoea maoli:
1. E hāʻawi ʻia nā sila Nitrogen ma waena o nā mea hoʻohui i loko a me waho o ka pahu waihona LNG no ka mālama ʻana i ke kūlana maikaʻi o ka interlayer (emi ma lalo o 0.5kPa) e pale aku i ke komo ʻana o ka ea humid a hōʻoia i ka maikaʻi o ka hana insulation thermal o ke one pearlescent.

2. E ho'olako 'ia ka pahu o loko o ka pahu ho'opa'a LNG me ka pūnaehana ho'opālua pae wai. Ke kiʻekiʻe ke kiʻekiʻe o ka wai o ka pahu i loko o ka pahu waihona LNG ma mua o ka waiwai i hoʻonohonoho ʻia, ua hoʻāla ʻia kahi alarm wai kiʻekiʻe, a i ka hiki ʻana o ka pae wai kiʻekiʻe, hoʻomaka ʻia ʻo Interlocking system e pani i ka valve ma ka paipu inlet o ka pahu waihona LNG. Ke emi ka pae wai o ka pahu waihona LNG i loko o ka pahu i loko ma mua o ka waiwai i hoʻonohonoho ʻia, e hoʻāla ʻia kahi ala haʻahaʻa wai haʻahaʻa. Ke hiki i ka pae wai haʻahaʻa, hoʻāla ʻia ka ʻōnaehana interlock e ʻoki i ka valve ma ka paipu hoʻoheheʻe wai o ka pahu waihona LNG a pani i ka pauma hoʻouka. .3. Ka pahu loko o kaPahu hoʻopaʻa kinoea kūloheloheua lako ʻia me ʻelua pūʻulu o ka nānā ʻana i ke kaomi a me nā ʻōnaehana interlocking alarm. Ke ʻoi aku ka kiʻekiʻe o ka pahu pahu LNG waihona pahu i loko o ka waiwai i hoʻonohonoho ʻia, hoʻāla ʻia kahi ala hoʻokiʻekiʻe kiʻekiʻe, hoʻāla ʻia ka ʻōnaehana interlocking, a ʻoki ʻia ka piʻi ʻana o ka pahu waihona LNG. E kaomi i ka valve aunoa ma ka paipu pūnaewele e ho'ōki i ka hoʻonui. Ke emi iho ka pahu pahu pahu LNG o loko ma mua o ka waiwai i hoʻonohonoho ʻia, ua hoʻāla ʻia kahi ʻōhua haʻahaʻa haʻahaʻa, a ua wehe ʻia ka backflow regulating valve ma ka puka o ka BOG compressor no ka hōʻoia ʻana ʻaʻole pono e hoʻokumu ʻia ke kaomi pahu o loko o ka pahu waihona LNG i kahi kaomi ʻino. Ke hiki i ka haʻahaʻa haʻahaʻa, hoʻāla ʻia ka ʻōnaehana interlock, wehe ʻia ka valve aunoa ma ka pipeline o ka LNG storage tank pressurization system, a ua kaomi ʻia ka ʻāpana vaporized o ka Liquefied Natural Gas storage tank no ka pahu i loko.

4. ʻO ka pahu o loko o ka pahu waihona i hoʻolakoʻia me ka'ōnaehana palekana piha-ʻelua mau pūʻulu o nā valve palekana a me nā papa hana lua o ka hanu hanu, a ua hoʻololiʻia e ka valveʻekolu. Ke piʻi ka pahu i loko ma mua o 25kPa, wehe ka pahu palekana a hoʻokuʻu i ke kaomi; ke emi iho ka pahu o loko ma lalo o -0.5kPa, wehe ka pahu hanu a komo ka ea i loko o ka pahu i loko e hōʻoia i ka pale ʻana i nā mea hana a me nā hōʻeha pilikino. Hāʻawi ʻia ka luna o ka pahu o waho me nā ʻāpana ʻelua o nā pahu palekana a me nā ʻāpana ʻelua o nā pahu hanu e hōʻoia ai i ke kaomi interlayer i loko o kahi kikoʻī a me ka palekana o nā mea hana.