Takirere Keti: Ko te takirere keti he takirere e whakamahi ana i te keti (pereti keti) hei neke poutū i te tuaka o te ara. Ka whakamahia nuitia i roto i ngā paipa hei wehe i te reo, arā, he tuwhera katoa, he kati katoa rānei. I te nuinga o te wā, kāore ngā takirere keti e pai mō te whakahaere rere. Ka taea te whakamahi mō ngā tono pāmahana iti me te pāmahana teitei me te pēhanga, i runga i te rauemi o te takirere.
Heoi, kāore ngā takirere kēti e whakamahia whānuitia ana i roto i ngā paipa e kawe ana i te paru me ngā mea rite.
Ngā Painga:
He iti te ātete ki te wai.
He iti ake te taipana e hiahiatia ana mō te whakatuwheratanga me te kati.
Ka taea te whakamahi i roto i ngā pūnaha rere e rua ngā taha, kia rere ai te reo i ngā taha e rua.
Ina tuwhera katoa, ka iti ake te pakaru o te mata hiri i te mea e whakamahia ana, ki te whakaritea ki ngā takirere porowhita.
He hanganga māmā me te tukanga hanga pai.
Te roa o te hanganga kiato.
Ngā ngoikoretanga:
He nui ake ngā āhuatanga whānui me te wāhi tāutanga e hiahiatia ana.
He nui ake te waku me te pakaru i waenga i ngā mata hiri i te wā e tuwhera ana, e katia ana hoki, inā koa i ngā pāmahana tiketike.
E rua ngā mata hiri o ngā takirere kēti, ka nui ake ai ngā uauatanga o te tukatuka, te huri, me te tiaki.
He roa ake te wā whakatuwheratanga me te wā kati.
Takirere PūrerehuaHe takirere pūrerehua te takirere e whakamahi ana i tētahi wāhanga kati āhua kōpae hei hurihuri i te 90 nekehanga hei whakatuwhera, hei kati, hei whakahaere hoki i te rere o te wai.
Ngā Painga:
He māmā te hanganga, he iti te rahi, he mama, he iti hoki ngā rauemi e pau ana, e pai ana mō ngā takirere whānui.
He tere te whakatuwheratanga me te kati me te iti o te ātete rere.
Ka taea te whakahaere i ngā pāpāho he matūriki totoka iri, ā, ka taea te whakamahi mō ngā pāpāho paura me ngā kirikiri i runga i te kaha o te mata hiri.
He pai mō te whakatuwhera, te kati, me te whakahaere i ngā paipa hauhautanga me te tango puehu. He whānuitia te whakamahinga i roto i te mahi whakarewa, te ahumahi māmā, te hiko, me ngā pūnaha petrochemical mō ngā paipa hau me ngā ara wai.
Ngā ngoikoretanga:
He iti te whānuitanga whakahaere rere; ina tuwhera te takirere mā te 30%, ka neke ake te tere rere i te 95%.
Kāore e pai mō ngā pūnaha paipa pāmahana teitei me te pēhanga teitei nā te mea he iti noa ngā hanganga me ngā rauemi hiri. Ko te tikanga, ka mahi i ngā pāmahana i raro i te 300°C me te PN40, i raro iho rānei.
He iti ake te mahi hiri i ngā takirere pōro me ngā takirere porowhita, nō reira kāore i te pai mō ngā tono he nui ngā whakaritenga hiri.
Takirere Pōro: I ahu mai te takirere pōro i te takirere mono, ā, ko tōna wāhanga kati he porowhita e hurihuri ana i te 90 nekehanga huri noa i te tuaka o tetakirerete kakau hei whakatuwhera me te kati. Ko te takirere pōro te mea matua e whakamahia ana i roto i ngā paipa hei whakaweto, hei tohatoha, hei whakarerekē hoki i te ahunga rere. He pai hoki ngā āheinga whakahaere rere o ngā takirere pōro me ngā whakatuwheratanga āhua-V.
Ngā Painga:
Te ātete rere iti rawa (tata ki te kore).
He pono te whakamahinga i roto i ngā wai waikura me ngā wai iti te kohua, nā te mea kāore e piri i te wā e whakamahia ana (me te kore he hinu whakahinuhinu).
Ka tutuki te hiri katoa i roto i te whānuitanga o te pēhanga me te pāmahana.
He tere te whakatuwheratanga me te kati, ko ētahi hanganga he poto noa te wā whakatuwheratanga/kati, tae atu ki te 0.05 ki te 0.1 hēkona, he pai mō ngā pūnaha aunoa i roto i ngā papa whakamātautau me te kore e pā i te wā e whakahaerehia ana.
Te tūnga aunoa i ngā tūranga rohe me te huānga kati pōro.
He hiri pono i ngā taha e rua o te rauemi mahi.
Kāore e memeha ngā mata hiri i ngā pāpāho tere-rahi ina tuwhera katoa, ina kati katoa rānei.
He hanganga kiato, he mama hoki, koia te hanganga takirere tino pai mō ngā pūnaha pāpāho pāmahana-iti.
Ka taea e te tinana takirere ōrite, inā koa i roto i ngā hanganga tinana takirere whakarewa, te tu atu i te ahotea mai i ngā paipa.
Ka taea e te wāhanga kati te tu atu i ngā rerekētanga pēhanga teitei i te wā e kati ana. Ka taea te tanu i ngā takirere pōro kua oti te whakarewa ki raro i te whenua, kia kore ai e pakaru ngā wāhanga o roto, me te roanga mahi mōrahi o te 30 tau, kia pai ai mō ngā paipa hinu me te hau.
Ngā ngoikoretanga:
Ko te rauemi matua o te mowhiti hiri o te takirere pōro ko te polytetrafluoroethylene (PTFE), he mea kore e pāngia e te nuinga o ngā matū, ā, he whānui ōna āhuatanga pēnei i te iti o te tauwehenga waku, te pumau o te mahi, te ātete ki te koroheketanga, te whānui o te awhe pāmahana, me te pai o te mahi hiri.
Heoi, ko ngā āhuatanga ā-tinana o te PTFE, tae atu ki tōna tauwehenga whānui teitei ake, te aro ki te rere makariri, me te kawe wera ngoikore, me hangai te hoahoa o ngā hiri nohoanga ki ēnei āhuatanga. Nō reira, ina mārō te rauemi hiri, ka ngoikore te pono o te hiri.
Heoi anō, he iti te ātete o te PTFE ki te pāmahana, ā, ka taea anake te whakamahi i raro i te 180°C. Ki te kore tēnei pāmahana, ka tawhito te rauemi hiri. Ki te whakamahia mō te wā roa, kāore e whakamahia i runga ake i te 120°C.
He iti iho te mahi whakahaere a tēnei takirere i tō te takirere porowhita, inā koa ngā takirere hau (ngā takirere hiko rānei).
Takirere Porowhita: E pā ana ki tētahi takirere e neke ana te wāhanga kati (kōpae takirere) i te rārangi pokapū o te nohoanga. He rite tonu te rerekētanga o te kōhao nohoanga ki te nekehanga o te kōpae takirere. Nā te poto o te whakatuwheratanga me te katinga o tēnei momo takirere me tana mahi kati pono, me te whanaungatanga ōrite i waenga i te rerekētanga o te kōhao nohoanga me te nekehanga o te kōpae takirere, he tino pai mō te whakahaere rere. Nō reira, he mea noa te whakamahi i tēnei momo takirere mō ngā kaupapa kati, whakahaere, me te whakawhāiti.
Ngā Painga:
I te wā e whakatuwhera ana, e kati ana hoki, he iti ake te kaha waku i waenga i te kōpae takirere me te mata hiri o te tinana takirere i tō te takirere kēti, ā, he ātete ake ki te kakahu.
Ko te teitei o te whakatuwheratanga he 1/4 noa iho o te awa nohoanga, he iti iho i te takirere keti.
I te nuinga o te wā, kotahi anake te mata hiri o te tinana takirere me te kōpae takirere, kia māmā ake ai te hanga me te whakatika.
He teitei ake tōna ātete ki te pāmahana nā te mea he ranunga asbestos me te graphite te nuinga o te wā e takai ana. He mea whakamahi noa ngā takirere porowhita mō ngā takirere mamaoa.
Ngā ngoikoretanga:
Nā te panoni o te ahunga rere o te reo mā roto i te takirere, he teitei ake te ātete rere iti rawa o te takirere porowhita i tērā o te nuinga o ngā momo takirere kē atu.
Nā te roa o te whiu, he puhoi ake te tere whakatuwheratanga ki te whakaritea ki te takirere pōro.
Takirere Mono: E pā ana ki tētahi takirere hurihuri me te huānga kati i te āhua o tētahi mono rango, kōne rānei. Ka hurihia te mono takirere i runga i te takirere mono kia 90 nekehanga hei hono, hei wehe rānei i te ara i runga i te tinana takirere, kia puta ai te whakatuwheratanga, te katinga rānei o te takirere. Ka taea te hanga porotaka, te kōne rānei te āhua o te mono takirere. He rite tōna kaupapa ki te takirere pōro, i whakawhanakehia i runga i te takirere mono, ā, e whakamahia ana i roto i te whakamahinga o ngā mara hinu me ngā ahumahi matū hinu.
Takirere Haumaru: He taputapu tiaki pēhanga nui rawa atu i runga i ngā oko, taputapu, paipa rānei kua pēhia. Ina nui ake te pēhanga i roto i te taputapu, oko, paipa rānei i te uara e whakaaetia ana, ka tuwhera aunoa te takirere hei tuku i te kaha katoa, hei ārai i te pikinga ake o te pēhanga. Ina heke te pēhanga ki te uara kua tohua, me kati tonu te takirere hei tiaki i te mahi haumaru o te taputapu, oko, paipa rānei.
Mahanga Kohu: I te kawe i te kohu, te hau kōpeke, me ētahi atu mea, ka hangaia he wai whakapūhau. Hei whakarite i te whai huatanga me te haumaru o te mahi a te taputapu, me tuku wawe atu ēnei mea koretake me ngā mea kino kia mau tonu ai te whakamahinga me te whakamahinga o te taputapu. Ko āna mahi e whai ake nei: (1) Ka taea e ia te tuku tere i te wai whakapūhau e puta mai ana. (2) Ka ārai i te turuturu o te kohu. (3) Ka tango.
Takirere Whakaiti Pēhanga: He takirere e whakaiti ana i te pēhanga tomo ki te pēhanga putanga e hiahiatia ana mā te whakarerekētanga, ā, e whakawhirinaki ana ki te kaha o te reo tonu hei pupuri aunoa i te pēhanga putanga pumau.
Takirere TirotiroE mōhiotia ana hoki ko te takirere kore-hoki, te aukati rere whakamuri, te takirere pēhanga whakamuri, te takirere kotahi-ara rānei. Ka whakatuwheratia, ka kati aunoatia ēnei takirere e te kaha e puta mai ana i te rere o te reo i roto i te paipa, ka waiho hei momo takirere aunoa. Ka whakamahia ngā takirere tirotiro i roto i ngā pūnaha paipa, ā, ko ā rātou mahi matua he ārai i te rere whakamuri o te reo, te ārai i te hurihanga o ngā papu me ngā motuka taraiwa, me te tuku i ngā pāpāho ipu. Ka taea hoki te whakamahi i ngā takirere tirotiro i runga i ngā paipa e tuku ana i ngā pūnaha āwhina i reira ka piki ake te pēhanga i runga ake i te pēhanga pūnaha. Ka taea te whakarōpū i te nuinga o te wā ki te momo hurihuri (ka huri i runga i te pokapū o te taumaha) me te momo hiki (ka neke i te tuaka).
Wā tuku: Pipiri-03-2023
