Kunyungudutsa gasi rechisikigo inzira yekudziya yakaderera. Gasi rechisikigo rakacheneswa rinopinda muheat exchanger kuti ritonhore, rinyorove uye ritonhore zvishoma nezvishoma, rinodzikisa simba uye rinodzikamisa kudzvanywa patembiricha ye -160 ~ 165 ℃, uye rinopinda mutangi rekuchengetera LNG.
Hukama huripo pakati pekupisa nekupisa kwekutonhodza, kudziya kwemhepo, uye kutonhora kwegasi rechisikigo ndekwekuti:
1) Mhando dzemafiriji
Kuti gasi rechisikigo rinyungudike, kupisa kuri kuitwa pakutonhodza, kudziya kwemhepo uye kutonhora kwemhepo kunofanira kubviswa, kureva kuti, simba rekutonhodza rinoenderana naro rinodiwa kuti uchinje naro.
Sisitimu yekutonhodza yakagadzirwa panguva yekunyorova ndeyekuita kuti chinoshandiswa pakupisa chiwane musiyano mudiki wekupisa pakati pekutonhora nekuyerera kwekupisa, kuitira kuti chiwane kushanda zvakanaka kwefiriji.
Sisitimu yekutonhodza yekunyungudutsa gasi rechisikigo yakura zvikuru, uye maitiro anowanzo shandiswa anosanganisira:
Danho rekutenderera kwefiriji
Kutenderera kwefiriji yakasanganiswa
Kutenderera kwefiriji yakasanganiswa nePrecooling
Kukura kwemaitiro ekutonhora kutenderera
2) Danho rekutenderera kwefiriji
Kutenderera kwekutonhodza kwematanho kwakatanga kushandiswa pazvigadzirwa zvegasi rechisikigo zvakanyungudutswa muna 1939. Kwakaiswa muCleveland muUnited States, kuchishandisa NH3 neC2H4 semafiriji ekutanga neechipiri.
Padanho rekutanga, propane kana Freon inoshandiswa semuchina wekuisa mufiriji. Gasi rechisikigo rakacheneswa rinotonhodzwa kusvika pa -35 ~ -40 ℃ mupropane kana Freon cooler. Mushure mekuparadzanisa mahydrocarbon anorema pamusoro pepentane, rinopinda padanho rechipiri rekutonhodza. Gasi repropane rinobviswa mupropane cooler rinomanikidzwa necompressor, rozonyungudutswa mushure mekutonhodzwa nemuchina wekuisa mufiriji, uye rozodzokororwa kuita propane cooler.
Muchikamu chechipiri, ethane kana ethylene inoshandiswa semuchina wekuisa mufiriji, uye gasi rechisikigo rinotonhodzwa kusvika pa -90 ~ - 100 ℃ muchikamu chechipiri uye rinonyungudutswa kusvika padanho rechitatu kuti ritonhodze. Mushure mekumanikidzwa uye kutonhodzwa nemvura, gasi rinobviswa mu ethane kana ethylene cooler rinotonhodzwa uye rinonyungudutswa mu propane cooler rozodzokororwa kuita ethane kana ethylene cooler.
Muchikamu chechitatu, methane inoshandiswa semuchina wekuisa mufiriji. Gasi rechisikigo rakanyungudutswa rinotonhorerwa kusvika pa -150 ~ - 160 ℃ mumudziyo wekupisa methane, uye rozoderedzwa nekudzvinyirirwa kuburikidza nevharuvhu yethrottle. Kana tembiricha yadzikira kusvika pa -162 ℃, rinopombwa kuenda kutangi rekuchengetera LNG. Gasi rinobuda kubva mumudziyo wekupisa methane rinomanikidzwa uye rinotonhodzwa nemvura, rinotonhodzwa mumudziyo wekupisa propane, rinonyungudutswa mumudziyo wekupisa ethane kana ethylene, uye rinodzokororwa kuita mumudziyo wekupisa methane.
Kutenderera kwechando kwetsika dzekare kunosanganisira matanho akati wandei ekutonhodza akazvimiririra uye akabatana. Sezvo firiji ichiwanzomanikidzwa necompressor ine matanho akawanda, muchikamu chimwe nechimwe chekutonhodza, firiji inogona kupwanyika pasi pekumanikidzwa kwakasiyana-siyana uye kupatsanurwa kuita mazinga akasiyana ekupisa kuti itonhodze gasi rechisikigo, uye firiji inopwanyika pasi pekumanikidzwa kwega kwega inopinda muchikamu checompressor chakakodzera chekudzvanywa. Muchikamu chimwe nechimwe chekutonhodza, firiji chete ndiyo yakasiyana, uye maitiro ekushanda akafanana.
Zvakanakira zvedanho rekutonhora kwechando ndeizvi:
① Kushandiswa kwesimba shoma;
② Refrigerant yakachena uye haina dambudziko rekuenzana kwehuwandu;
③ Tekinoroji yakakura uye kushanda kwakasimba
Zvakashata zvedanho rekuisa firiji ndeizvi:
① Kune mayuniti akawanda uye maitiro acho akaomarara;
② Kune michina yakawanda yekubatsira, uye panofanira kunge paine michina yakasarudzika mukugadzira nekuchengetedza mafiriji akasiyana-siyana;
③ Mapaipi nehurongwa hwekudzora zvinhu zvakaoma uye hazvishande zvakanaka kuchengetedza
Nguva yekutumira: Gunyana-26-2021