Ko te hangarau o te pūnaha kohikohi me te kawe hau o te mara hinu (arā, te hau e pā ana ki te hinu mata) ko: te kohikohi hau, te tukatuka hau; te kawe i te hau maroke me te hauwaiwai māmā; te kawe hiri o te hinu mata, te pumau o te hinu mata, te rokiroki o te hauwaiwai māmā, me ētahi atu.
Kohikohi hau o te mara hinu
I muri i te putanga mai o te hinu mata i te puna hinu, ā, ka inehia e te kaiwehewehe ine, ka haria te hinu me te hau ki roto i te kaiwehewehe hinu me te hau o te teihana whakawhiti hinu. Ka wehea te hau o te mara hinu mai i te hinu mata, ka tomo ki te whatunga kohikohi hau. I te nuinga o te wā, ka hangaia he teihana kohikohi hau pēhanga-ake, he teihana kohikohi hau whakanui rānei i roto i te teihana whakakotahi o te tipu whakaputa hinu. Ko ngā pūwero whakanui he maha ngā waeine pūwero kotahi-wāhanga. Ka taea e te pēhanga tomo te mānu, ā, ko te pēhanga putanga ka whakawhirinaki ki te pēhanga whakamuri o te pūnaha. Ko te pēhanga putanga mōrahi he 0.4MPa.
Te kohikohi me te kawe i te hinu mata i roto i te kati
Ko te kohikohi me te kawe ā-kati i te hinu mata te tikanga matua mō te tango i te hauwaiwai māmā mai i te hinu mata mā te tikanga whakapūmau hinu mata, ā, he mea nui anō hoki hei whakaiti i te ngaronga o te hinu mata.
I te teihana whakawhiti hinu, ka tomo te hinu mata e tika ana mā te wehewehe hinu-hau ki te mīhini tango wai kore utu, kātahi ka tukuna ki te teihana whakamaroke hinu mata mā te tāke ārai wai me te oumu whakamahana kaweake. I konei, ka tomo te hinu mata mā te mīhini tango wai kore utu, kātahi ka tomo ki te oumu whakamahana whakamaroke hei whakamahana, kātahi ka tomo ki te mīhini whakamaroke hiko whakakotahi. I muri i te whakamaroke, ka tomo te hinu mata ki te tāke ārai (he iti iho i te 0.5%) te nui o te wai o te hinu mata, kātahi ka pamuhia ki te wāhanga whakau hinu mata, ā, i muri i te whakau, ka tomo te hinu mata ki te tāke rokiroki hei kaweake.
I roto i te tukanga kati o te teihana whakawhiti hinu me te teihana maroke, ka tukuna te wai kore utu i mua i te wā, ka konatunatua ki te wai werohanga o te mara hinu i te rohe hei whakaiti i te whakapaunga pūngao whakaputa.
Te tukatuka i te hau o te mara hinu
Ka tomo te hau o te mara hinu mai i te teihana pēhanga-ake ki te wāhanga whakamatao pāpaku (te wāhanga cryogenic rānei), ka pēhia, ka tio, ka wehea ngātahi me te hau kore-whakapūmau mai i te wāhanga whakapūmau hinu mata hei whakaora i ngā wāhanga i runga ake i te C3 (C2 rānei), ā, ka kawea te hau maroke ki waho.
Pūnaha kohikohi me te kawe warowaihā māmā
Ko te kohikohinga me te kawe i ngā warowaihā māmā e whakamahi ana i te aratau kawe paipa, ā, ko te pūnaha he rokiroki āwhina, he teihana whakawhiti, he rokiroki whānui, he teihana ine kaweake me te whatunga paipa e rite ana.
Te wae whakaora warowaihā māmā he tāke rokiroki kei roto, e whakamahia ana mō te whakamaroke i te wai, te whakatikatika i ngā hua, te ārai i te papu kaweake me te paipa kaweake hei whakarite i te mahi whakaputa noa, i te kati rānei i te waeine mēnā ka puta he aituā. Ko te kaha rokiroki o te tāke rokiroki he 1 ki te 2 rā te roa mō te hanga warowaihā māmā.
Ko te mahi matua a te teihana whakawhiti warowaihā māmā ko te whakamahi i te teihana hei whakarite i te kore taurite i waenga i te hanga me te kaweake warowaihā māmā i roto i te rā kotahi, me te penapena me te horoi i te rerenga mai o te paipa mēnā ka puta he aituā i te paipa.
Ko te mahi matua o te rokiroki warowaihā māmā whānui ko te whakamahi i te tāke rokiroki hei whakarite i te kore taurite i waenga i te hanga warowaihā māmā me te kaweake, tae atu ki te piki me te heke o te putanga o te wae whakaputa, te piki me te heke o te putanga i puta mai i ngā wā tiaki rerekē o te wae, te tiaki i te tipu ethylene me te kore tiaki haukini, me te hiahia tonu ki te whakarato i te mara hinu ki te rokiroki i te warowaihā māmā i kohia mai i te hau whāngai.
Ko te teihana rokiroki whānui o te warowaihā māmā me te teihana ine kaweake katoa ngā putanga matua o ngā rauemi mata warowaihā wai e whakaratohia ana e te mara hinu mō te tipu ethylene, te wāhi kohikohinga o te warowaihā māmā i hangaia e ngā momo wae whakaora warowaihā māmā, me te pokapū o te pūnaha rokiroki me te kawe warowaihā māmā.
Pūnaha kaweake me te whakahoki mai i te hau maroke
Ka tukatukahia, ka tukatukahia hoki te hau o te mara hinu i muri i te whakaora. Ko te nuinga o te hau maroke i muri i te whakaora i te hauwaiwai māmā ka tukuna ki ngā tipu Dahua me te methanol hei rauemi mata matū, ā, ko tētahi wāhanga o te hau maroke ka whakahokia ki te teihana whakawhiti hinu i te mara hinu hei wahie mō te oumu whakamahana me te poiha. Ko te whakahokinga mai o te hau maroke te tukanga whakamuri o te kohikohinga hau. I taua wā anō, ka werohia ētahi o te hau maroke ki roto i te putunga hau i te raumati. Ka hangaia i te takurua hei whakamama i te korenga o te tuku me te hiahia o te hau māori.
Ka whakamahia ētahi o te hau maroke hei whakaputa hiko me te hau mā ngā kainoho.
Wā tuku: Pipiri-21-2021