Ngongo Hau LPG mō te Oumu LPG o te Kāinga
Te Whakamahinga o te Ngongo Hau LPG
Ko te ngongo LPG hei whakawhiti i te hau, te wai rānei o te LPG, te hau māori me te methane i roto i te 25 pae. Haunga tēnā, he pai hoki mō ngā oumu me ngā mīhini ahumahi. I te kāinga, he hononga tonu tēnei i waenga i te tāke hau me ngā oumu pēnei i te oumu hau.
Whakaahuatanga
Ki te whakatauritea ki ētahi atu ngongo kirihou, ka taea e ngā ngongo hau LPG te mahi i roto i te whānuitanga pāmahana whānui. Ahakoa ko te pāmahana mahi ka taea te -32℃-80℃. Nō reira, he pai ake mō te whakamahinga pāmahana iti me te pāmahana teitei.
Te whakaritenga hangarau mō te ngongo hau LPG
Ko te ngongo LPG te mea hei whakawhiti i ngā hau mura. Nō reira, he tino uaua ngā whakaritenga hangarau.
Tuatahi, ko te manawanui. Hei paerewa, ko te manawanui o te ngongo i roto i te DN20 me noho ki roto i te ±0.75mm. Ko te DN25-DN31.5 he ±1.25. Kātahi, ko te DN40-DN63 he ±1.5.
Tuarua, te āhuatanga ā-pūkaha. Ko te kaha kume o te ngongo o roto me 7Mpa. Ko te 10Mpa mō te uhi. I taua wā, ko te roanga me 200% o te ngongo o roto me te 250% mō te uhi.
Tuatoru, te kaha pēhanga. Me mau te ngongo wai i te 2.0Mpa. I taua wā, kaua e turuturu, e mirumiru rānei i te pēhanga neke atu i te 1 meneti. Haunga tēnā, me noho te tere whakarerekētanga roa i te pēhanga ki roto i te 7%.
Tuawhā, te āhua piko o te pāmahana iti. Whakatakotoria te ngongo ki te -40℃ mō ngā hāora 24. Ā muri iho, kāore he pakaru. Kia hoki ki te pāmahana noa, me whakamātautau te pēhanga. Ahakoa kaua e turuturu.
Hei whakamutunga, te ātete ki te ozone. Whakanohoia te ngongo ki roto i tētahi pouaka whakamātautau he 50pphm te nui o te ozone me te 40℃. I muri i ngā hāora 72, kaua e puta he kapiti i te mata.
