Me pēhea te mahi a ngā takirere pūrerehua?

takirere pūrerehuaHe momo takirere e whakamahi ana i te wāhanga whakatuwhera me te kati kōpae hei huri i te 90° hei whakatuwhera, hei kati, hei whakatika rānei i te tere rere o te reo. Ehara i te mea he hanganga māmā noa iho, he rahi iti, he māmā, he iti te whakamahinga rauemi, he iti te rahi tāutanga, he iti te taipana taraiwa, he māmā me te tere te whakahaere, engari he pai hoki te mahi whakahaere rere me ngā āhuatanga hiri kati, ā, ko tētahi o ngā momo takirere tino tere te tipu i roto i ngā tau tekau kua hipa. He whānui te whakamahinga o ngā takirere pūrerehua. Kei te whānui haere tonu te momo me te nui o tōna whakamahinga, ā, kei te whanake ki te pāmahana teitei, te pēhanga teitei, te diameter nui, te kikī teitei, te roa o te ora, ngā āhuatanga whakahaere pai, me te maha-mahi o te takirere kotahi. Kua eke tōna pono me ētahi atu tohu mahi ki tētahi taumata teitei.

Mā te whakamahi i te rapa hangai ātete matū kingā takirere pūrerehua, te mahi angā takirere pūrerehuakua whakapaitia. Nā te mea he āhuatanga ā-ringa te rapa hangai, arā, te ātete ki te waikura, te ātete ki te horo, te pumau o ngā āhuatanga, te pakari pai, te ngāwari ki te hanga, te iti o te utu, me ētahi atu, ka taea te whiriwhiri i te rapa hangai me ngā āhuatanga rerekē kia rite ki ngā whakaritenga whakamahinga rerekē hei whakatutuki i ngā tikanga mahi ongā takirere pūrerehua.

Nā te mea he kaha te ātete o te polytetrafluoroethylene (PTFE) ki te waikura, he pumau te mahi, he ngāwari ki te tawhito, he iti te tauwehenga o te waku, he ngāwari ki te hanga, he pumau te āhua, ā, ka taea te whakapai ake i ōna āhuatanga whānui mā te whakakī me te tāpiri i ngā rauemi e tika ana, ka taea te whiwhi i te rauemi hiri takirere pūrerehua he kaha ake, he iti ake te tauwehenga waku, ā, ka taea te wikitoria i ngā herenga o te rapa hangai, nō reira kua whakamahia whānuitia te rauemi polymer polymeric e tohuhia ana e te PTFE me tana rauemi whakakī kua whakarerekētia i roto i te takirere pūrerehua, nō reira kua pai ake te mahi a te takirere pūrerehua.Ngā takirere pūrerehuame te whānuitanga o ngā pāmahana me ngā pēhanga, kua hangaia he mahi hiri pono me te roa o te ora ratonga.

Hei whakatutuki i ngā whakaritenga o ngā tono ahumahi pēnei i te pāmahana teitei me te pāmahana iti, te horo kaha, me te roa o te ora, kua tino whanakehia ngā takirere pūrerehua hiri whakarewa. Nā te whakamahinga o te ātete pāmahana teitei, te ātete pāmahana iti, te ātete waikura kaha, te ātete horo kaha, me ngā rauemi koranu kaha-kaha i roto i ngā takirere pūrerehua, kua whānuitia te whakamahinga o ngā takirere pūrerehua hiri whakarewa i roto i ngā mara ahumahi pēnei i te pāmahana teitei me te pāmahana iti, te horo kaha, me te roa o te ora, ā, kua puta mai ngā takirere pūrerehua he whānui te diameter (9~750mm), te pēhanga teitei (42.0MPa) me te whānuitanga pāmahana whānui (-196~606°C), nō reira kua eke te hangarau o ngā takirere pūrerehua ki tētahi taumata hou.

Ina tuwhera katoa te takirere pūrerehua, he iti noa te ātete rere. Ina tata ki te 15° ki te 70° te koki o te whakatuwheratanga, ka taea te whakamahi hei whakahaere rere tairongo, nō reira he mea noa te whakamahi i te takirere pūrerehua i roto i te mara o te whakatikatika whānui.

Nā te nekehanga ka taea te muru o te pereti pūrerehua, ka taea te whakamahi i te nuinga o ngā pūrerehua mō ngā mea kei roto ngā totoka iri. I runga anō i te kaha o te hiri, ka taea hoki te whakamahi mō ngā mea paura me ngā mea kirikiri.

He pai ngā takirere pūrerehua mō te whakahaere rere. Nā te mea he nui te ngaronga pēhanga o te takirere pūrerehua i roto i te paipa, tata ki te toru ngā wā o te takirere kuaha, i te wā e whiriwhiri ana i te takirere pūrerehua, me whai whakaaro katoa ki te awe o te ngaronga pēhanga o te pūnaha paipa, me whai whakaaro hoki ki te kaha o te pereti pūrerehua ki te tu atu i te pēhanga o te reo paipa ina kati. Hei tāpiri, me whai whakaaro hoki ki ngā herenga o te pāmahana whakahaere ka taea te pā ki te rauemi nohoanga elastomeric i ngā pāmahana teitei.

He poto te roa o te hanganga me te teitei whānui o te takirere pūrerehua, he tere te whakatuwheratanga me te kati, ā, he pai ngā āhuatanga whakahaere wai. Ko te mātāpono hanganga o ngā takirere pūrerehua te mea tino pai mō te hanga takirere nui-pū. Ina hiahiatia he takirere pūrerehua hei whakahaere i te tere rere, he mea nui kia whiriwhiria te rahi me te momo tika o te takirere pūrerehua kia pai ai te mahi me te whai hua.

I te nuinga o te wā, i roto i te reo whakateretere, te whakahaere ture me te paru, he poto te roa o te hanganga, he tere te whakatuwheratanga me te katinga, ā, me iti te aukati pēhanga (he iti te rerekētanga pēhanga), ā, e taunakihia ana te takirere pūrerehua. Ka taea te whakamahi i ngā takirere pūrerehua ina he whakatikatika tūranga-rua, he hongere iti te diameter, he iti te haruru, he cavitation me te momi, he iti te turuturu ki te hau, me te pāpāho whakakoi. I raro i ngā tikanga mahi motuhake, he whakatikatika whakateretere, he hiri pakari rānei, he nui te kakahu, he iti te pāmahana (cryogenic) me ētahi atu tikanga mahi.