Kua tāutahia ngā taputapu pouaka whakamātao (te waeine kōpeke) ki roto i te rūma mīhini, ā, me tiaki te taiao e karapoti ana i a rātou:
1. Me whai wāhi wātea kia kaua e iti iho i te 1.5m i te taha teitei o te pūwhakamātao, kia kaua e iti iho i te 0.6~1.5m i mua me muri, kia kaua hoki e iti iho i te 0.6m i tetahi pito ki te pakitara i te taha maui me te taha matau, ā, kia kaua hoki e iti iho i te 0.6m i tetahi pito. Kia iti iho i te 0.9~1.2m te wāhi wātea.
2. Kaua te pāmahana o te taiao e iti iho i te 10℃.
3. Ina tāutahia te waeine ki waho, me whai wāhi tiaki hau, ua me te rā, ā, me mahi hoki i ngā mahi hei ārai i te waikura me te whakarite i te whakamarumaru hiko. Me wehe atu i ngā pūtake wera pāmahana teitei, i ngā rauemi mura me ngā mea pahū, i ngā ipu pahū rānei.
4. Me ātete te mīhini ki ngā ru me te haruru.
Ngā whakaritenga hanga taputapu pouaka whakamātao:
1. Me nui te kaha o te turanga o ngā taputapu whakamatao (waeine pēhi), ā, me tanumia te turanga raima ki raro i te taumata whenua. Ko te taumaha turanga he 2 ki te 5 ngā wā o te taumaha o te waeine pēhi. Mō ngā waeine iti me te rahi waenga, ka taea te tāuta i ngā pēhi me ngā motuka whakamatao ki runga i te anga noa i te tuatahi, kātahi ka tāuta ki runga i te turanga.
2. Me whakatakoto whakapae ngā taputapu whakamatao (te waeine pēhi), ā, me whakamahi ngā papa taurite me ngā papa āhua porowhita me te tika e wātea ana kia kaua e iti iho i te 0.02~0.05mm/m hei whakatikatika i te taurite. Hei whakaiti i te wiri me te haruru, me whakatakoto ngā taputapu mimiti ru, pērā i ngā papa mimiti ru rapa, ngā puna, me ētahi atu, i waenganui i te turanga mīhini me te turanga.
3. Kia rite te whitiki o te pūwhakamātao ki te riu o te pūrakau o te motuka, kia tika hoki te piri o te whitiki. Ko te tikanga tirotiro ko te pēhi i te tūranga waenga o te whānuitanga o te whitiki mā te ringa, ā, he pai te whitiki kei roto i te 100mm te roa, me te piko tata ki te 1mm.
4. Me whakamātautau te pēhanga hau o te 176.4N/cm2 mō te tāutanga o te pūwhakamātao. Me anga te paipa putanga pūwhakamātao ki te taha o te kaiwhakaemi, me te pikinga o te 1/1000. Me whakahaere te whakamātautau pēhanga hau o te 156.8N/cm2 i mua i te tāutanga o te pūwhakamātao. I waenganui i te pūwhakamātao, i te turanga waikeri me te whakamakuku whakamatao rānei me te mata o te turanga, me tāpiri he papa rakau mārō matotoru 50-100mm, me pania hoki he uku hei ārai i te waikura. Tērā pea kāore he teihana whakahaere wai mō te rokiroki makariri iti te taumaha, ā, ka tukuna tika mai te wai e te rokiroki wai. Mēnā he nui te taumaha o te rokiroki makariri, he maha ngā rūma makariri o te whare putunga, ā, he pūwhakamātao, he paipa whakamatao rānei kei ia rūma makariri, me whakatū he teihana whakatikatika wai. Ka tukuna te wai ki ia pūwhakamātao, ki ia paipa whakamatao rānei mā te takirere whakatere.
5. Ko ngā tikanga hononga o ngā paipa ko te whakarewa, te hononga miro me te hononga flange. Me whakamahi te whakarewa i ngā wā katoa e taea ana, engari me whakamahi te hononga miro, te hononga flange rānei mō te tāutanga me te tiaki. Mō te hononga miro, me tāpiri he hinu mata, he rīpene hiri PTFE rānei ki te miro. Mō te hononga flange, me hanga he aukati pūkohu me te piko ki te mata hononga o te flange, ā, me tāpiri he matotoru o te 1~3mm ki te aukati, ā, me pania te hinu mata ki ngā taha e rua. Whāriki rapa asbestos pēhanga-waenga.
6. Te pari o te whakaurunga paipa: ko te wāhanga paipa whakapae o te wehewehe hinu i roto i te paipa putanga o te pūwero whakamatao he anga 0.3%~0.5% ki te ahunga o te wehewehe hinu; ko te wāhanga mai i te wehewehe hinu ki te paipa whakatōtō he anga 0.3%~0.5% ki te ahunga o te pūwero whakamatao; ko te putanga o te pūwero whakamatao he anga 0.5%~1.0% ki te ahunga o te pūwero whakamatao; ko te wāhanga paipa whakapae mai i te teihana whakamatao wai ki te paipa whakamatao he anga 0.1%~0.3% ki te ahunga o te paipa whakamatao; ko te paipa whakamatao ki te hau. Ko te wāhanga paipa whakapae o te teihana whakamatao he anga 0.1%~0.3% ki te ahunga o te paipa putanga whakamatao; ko te wāhanga paipa whakapae o te paipa momi Freon he anga 0.19~0.3% ki te ahunga o te pūwero whakamatao.
7. Mō te piko o te paipa, ina kei raro iho te diameter o te paipa i te Ф57, ko te radius o te piko o te paipa kaua e iti iho i te 3 ngā wā o te diameter o waho o te paipa; ina kei runga ake te diameter o te paipa i te Ф57, ko te radius o te piko o te paipa kaua e iti iho i te 3.5 ngā wā o te diameter o waho o te paipa. Me whai whakaaro te hononga o te paipa ki te whānui me te whakaheke wera o te paipa. Nō reira, ina neke atu te paipa pēhanga iti i te 100m, ā, neke atu te paipa pēhanga teitei i te 50m, me tāpiri he tuke karu ki te tūranga tika o te paipa.
8. Me whakamahana te nohoanga tautoko paipa pakitara ki te rakau mārō adiabatic, me neke atu i te 150mm te tawhiti o te paipa pakitara mai i te pakitara, ā, me neke atu i te 300mm te tawhiti o te paipa tuanui mai i te tuanui.
Wā tuku: Whiringa-ā-rangi-09-2022
