Te Whai Hua o te Kōhao Wai: Te Kaha Kua Takahia o ngā Tātai PVC-O

Ngā Kōhao Wai Katoa: Te Whakamāngō i ngā Kōhao Wai i ngā Rākau Wai Ākene

I tēnei āhua ngā kōhao o ngā tātai PVC-O i te whakamāngō i ngā wāhi kōhao i te whakamāngō i ngā wāhi kōhao kāore o te whakamāngō

Kaore i rite ki nga punaha putorino waahanga tuku iho e whakawhirinaki ana ki nga kopae rapa, ki nga hononga miihini ranei, ka tutuki te putorino PVC-O i te tata ki te kore puta mai i te mahinga honoa o te ngota. Ka hangaia ia hononga mā te whakawera i ngā pito o te putorino mā te whakamahi i ngā taputapu whakakotahitanga e whakahaeretia ana e te rorohiko kia hanga ai he hononga ōrite, kotahi, kaha rite ki te pakitara o te putorino. Mā tēnei ka whakakorea ngā kōaro iti me te whakaheke i te hiri, ko ngā take matua o te mate wai i roto i ngā whatunga noa. I kitea e tētahi rangahau ā-rohe Pākehā 2021 he 0.02 rita noa iho te toharite o ngā whatunga PVC-O ia hononga ia rā, i whakaritea ki te toharite o te ahumahi o te 0.5 rita. Kāore he kōpaki, he pū, he taatiraa rapa rānei e hiahiatia ana, ka mau tonu te hononga i tōna tika, kāore he tiakika huri i ngā roa putorino motuhake ki tētahi arawhata tonu, kore-whakaheke. I roto i ngā hanganga tawhito, ka nui ake i te 20% o te rerenga katoa ngā ngaronga huna, ka whakaratohia e tēnei pūtaiao pūtaiao te painga o te tiaki.

Te mahi i raro i te pēhanga whakawhiti: Te tōtika hydrostatic me te ātete o te pōtae wai

Ko te āhua o te PVC-O e āhei ana ki te hopu me te whakakore i te pūngao i ngā āhuatanga pēhanga poto pēnei i te pōtae wai. I raro i ngā kawenga nui, ka whakaitihia anō ōna mekameka pūngāwerewere i te wā poto, ka heke iho te pēhanga nui o te kaha ki te 35% i whakaritea ki ngā rauemi pakeke, e ai ki tētahi tātari waiora 2022. He mea nui, kāore ngā hononga whakarewa i te mahi hei pūhui i te ahotea. Ko ngā whakamātautau pēhanga hydrostatic e whakapūtā ana i te mahi kore-whakaheke i ngā pēhanga neke atu i te 2.5 ngā wā o te pēhanga tauine e tino hāngai ana ki te ISO 16422. Ko te whakamātautau ngenge huringa i runga i te 100,000 huringa pēhanga kāore i kitea he whakaheke, he turuturu rānei. I roto i te mahi tūturu, ahakoa te kati ohorere o te piha, kaore he ngoikoretanga o te hononga, he turuturu ranei. Mā tēnei kaha ā-tinana e whakaiti ai i te whakawhirinaki ki ngā ipu nui, ki ngā here ā-waho rānei, e whakanui ana i te haumaru o te pūnaha, e whakatāwari ana hoki i te hoahoa.

Te Whakapaipai Hiko Nui: Te Whakanuia o te Kawenga Huri me te Pipe PVC-O

Ngā āki o te wai kia rere ake i ngā tātai PVC-U me ngā tātai pārāwae i ngā tātai ōrite

I ngā tātai whānui ōrite, ko te PVC-O e whakamāhinga ana i te PVC-U me ngā tātai pārāwae i te whakamāhinga o te wai. Ko te whakamāhinga ā-rua he take mō ngā tātai iti ake, ākine kāore he pakaru i te hāngā o te pressure—ka whakamārama i te tātai wāhi roto 8–12% te nui ake i ngā tātai metara, pārāwae, me ngā tātai PVC mātātū. I tēnei, i tēnei anō, ko te whakamāhinga o te whānui o te tātai wāhi roto—ka mau tonu te ‘Hazen-Williams’ C -te tau o te 150 (i tēnei anō, ko te 130 mō ngā tātai pārāwae, me ngā tātai pārāwae kua pāhua mai i te kōpū)—ka whakamāhinga i te whakamāhinga o te wai 15–25% te nui ake i te tātai ōrite. Ko ngā whakamātautau i te wāhi e whakaatu ana i te whakamāhinga o ngā tātai pārāwae kua pāhua mai ki te PVC-O ka whakamāhinga i te whakamāhinga o te wai, kāore he whakamāhinga o te tātai wāhi, ā, ka whakamāhinga i te whakamāhinga o ngā kōrero me ngā utu o te whakamāhinga o te tātai.

He iti ake te ngākau o te wai me ngā whakamāhinga o te hiko i ngā pūnaha whakamāhinga o te wai

Te whakamāmā o te whakamātautau o te rūpō o PVC-O i te whakamātautau o te kaha o te wāhi i te 20% i te whakamātautau o te rūpō o te rino mātā, ā, he nui ake te whakamāmā i ngā rūpō mātā i te whakamātautau o ngā rūpō. I te mea i tēnei, ko te PVC-O e whakawātea ana i te whakamātautau o te rūpō me ngā whakamātautau o te rūpō, kāore he huringa i tōna whakamātautau o te wāhi i te tau, ā, ko ngā rūpō mātā i te whakamātautau o te rūpō i te whakamātautau o te rūpō i te 40% o te whakamātautau o te wāhi i te 20 tau. Mō tēnei rūpō e neke atu i te 50 miriona lītā i te rā, ko te whakamāmā o te whakamātautau o te kaha o te wāhi i te 20% e whakamāmā ana i te whakamātautau o te kaha o te wāhi i te 120,000 kWh i te tau—e whakamāmā ana i ngā utu o te whakamāhi, ā, e whakamāmā ana i ngā whakamātautau o te kōhanga. Ko ngā ripoata o ngā rūpō o Tāwhiri Āwherika i te 2022 e whakamātua ana i ngā whakamāmā o ngā utu o te whakamāhi i te 25%, e whakamātua ana i ngā whakamātautau o te wāhi. Ko ēnei whakamāmā o te kaha o te wāhi i te 50 tau o te whakamāhi o te PVC-O e whakamātua ana i tōna tūranga hei wāhanga matua o te rūpō o te wai.

Te whakamāhua o te kaha me ngā whakamātautau o te whakamāhi i te whakamātautau o te whakamātautau o te whakamātautau

Ko te whakamāhinga biaxial te whakamāhinga i te PVC tātai ki tēnei wā ki tēnei wā i te whakamāhinga o ngā āhua i mua i ngā āhua rāwhiti (whānui) me ngā āhua tāwhai (tāwhai), ā, ko tēnei te whakamāhinga i ngā rārangi o ngā pōlymēra ki tēnei rārangi kīato—ka pānui ake i te whānuitanga o te pakaru ki te 18–23 kJ/m² (i tēnei wā he 4–8 kJ/m² mō te PVC kāore i whakamāhinga), ka whakarereke i te ora o te whakamāhinga i te rima ki te whitu wā, ā, ka whakapānui ake i te whānuitanga o te pakaru o te rārangi i te 300% i te nuinga. Ka pānui ake te kaha o te whakamāhinga i te 50–70% (Pipeline International, 2023), e whakamārama ana i te whakamāhinga o ngā pāmahana o te wāhi e 25–35% ake, i te whakamāhinga i te 15–20% iti ake o ngā kōpae.

Ko te whakamārama he mea matua: ko te whakamāhinga kē o te whānuitanga o te rāwhiti e whakamāmā ai i te whānuitanga o te whakamāhinga tāwhai i te 25–30% (Journal of Materials Science, 2022). Ko tēnei whakamāhinga tāwhai te whakamārama i te kaha tino, ngā pāmahana pūmau o te wāhi, me te whakamārama o te whakamāhinga i te wā roa—kāore he tāwhai i te taumaha, i te utu rānei o ngā whakamāhinga tātai.

Te roa o te kore o te whakamāhinga o te rākau me te kounga wai kāore i te whakamāmā

Kore waikura, kahore he mate pukupuku, me te mahi waiora pūmau i runga i te 50+ tau

Ka whakakorea e te hanganga ngota ngota o te PVC-O te waikura, te whakairo o roto, me te whakaheke hiko-herekohiko nga aratau hapa noa i roto i nga putorino rino, maitai, tae atu ki nga putorino whakarewa. Ka taea e ia te tu atu ki ngā oneone kaha, ki te wai waikawa, ki ngā matū rānei, kāore he tiaki cathodic, he ārai tiaki rānei. Ko tōna kōhao maeneene e noho ana i te kore o te mate pukupuku, e pupuri ana i te kaha o te rere katoa, e whakaiti ana i te pūngao papu puta noa i tōna oranga katoa. Ko ngā aromatawai ā-rohe motuhake e whakapūtā ana i te pūmautanga o te mahi waioro i tua atu i te 50 taui te tiaki i te kounga o te wai mā te whakakore i ngā mōrearea o te waikura, te rerenga o te tumu, te whakapoke parahi rānei. Ko tēnei roa o te ora, kāore he tiaki, ka whakaiti tika i ngā utu o te ora, ā, ka whakarite kia kore e whakakorehia, kia pai te wai.

FAQ

He aha te painga o ngā hononga PVC-O pūhui rāpoi ngota?

Ko ngā hononga PVC-O i whakamahinga kia tāwhai ai ngā molekū, ka whakamāngai i te rere o te wai mā te whakamāhunga i tēnei huinga kōpū, kāore he rerekē i te pū o te rorohiko. Ko tēnei huinga kāore he hāngā, he pātītī, he whakamāhunga, kia whakamāngai ai te tūmātanga o te wāhi i te wāhi, kāore he whakamāhunga i te wāhi i te wāhi.

He aha te whāinga o te PVC-O i ngā pānga o te pressure i ngā rorohiko āpihi atu?

Ko ngā uara o te PVC-O i te whakamāhunga o te pānga me te whakamāhunga o te pānga, e whakamāhunga ana i te pānga o te pressure, e whakamāhunga ana i te pānga o te pressure i te 35%. Ko tēnei whakamāhunga e whakamāhunga ana i te whakamāhunga o te hononga i ngā āhua pānga o te pressure.

He aha te take o te PVC-O i te whakamāhunga o te whakamāhunga o te wai?

Ko te PVC-O e whakamāhunga ana i ngā rere o te wai, me ngā whakamāhunga o te wai, e whakamāhunga ana i te pānga o te wai, e whakamāhunga ana i te pānga o te wai, e whakamāhunga ana i te pānga o te wai.

He pānga te PVC-O i te corrosion?

Āe, ko te PVC-O kāore he corrosion, me te whakamāhunga o te scaling, kia whakamāhunga ai te whakamāhunga o te wai, me te whakamāhunga o te wai i te 50 tau.

He aha te mea i whakamāhinga ai te tāwhai ā-tāwhai ki te whānanga o ngā pīpī PVC-O?

Ko te tāwhai ā-tāwhai he whakamāngai i te PVC tātai kia rere kē, e whakakaha ana i te kaha o te tāwhai, te whakamāngai ki ngā pākanga, me ngā whānanga hukapapa, i te whakamāmā i te whakamahinga o ngā kōpae.