Ngā Hononga Paipa Ahumahi: Ngā Momo, Ngā Rauemi me Ngā Whakamahinga

Kupu Whakataki

Ko te whiriwhiri i te hononga paipa tika he nui atu ngā pānga i te hononga o ngā paipa anake. I roto i ngā pūnaha ahumahi, ka whakatauhia e ngā hononga te ahunga rere, te ngaronga pēhanga, te mahi hiri, te auau tiaki, me te haumaru i raro i ngā āhuatanga mahi uaua. E whakamārama ana tēnei tuhinga i ngā momo hononga matua, ngā rauemi i whakamahia hei hanga, me te wāhi e pai ai te uru o ia kōwhiringa puta noa i ngā tipu tukatuka, ngā ratonga, me ngā ahumahi taumaha. Hei te mutunga, ka whai anga mahi koe mō te whakataurite i ngā tuke, ngā tī, ngā whakaiti, ngā hononga, me ngā wāhanga e pā ana i runga i ngā āhuatanga ratonga, te ātete waikura, te kaha, me ngā whakaritenga tono.

He aha te Hiranga o ngā Hononga Paipa Ahumahi

Ko ngā hononga paipa ahumahi te pūnga matua o roto i ngā whatunga kawe wai matatini. Ko tā rātou mahi matua he hono, he whakamutu, he whakahaere, he whakarerekē rānei i te ahunga rere o ngā pūnaha paipa puta noa i ngā rāngai mai i te tukatuka hinu ki te maimoatanga wai ā-tāone.

Te whakamāramatanga me te tūranga i roto i ngā pūnaha paipa

Kei roto i ngā hononga he whānuitanga o ngā wāhanga—pērā i ngā tuke, ngā tī, ngā whakaiti, me ngā takirere—e whakahaere tika ana i ngā nekehanga wai. I roto i te oma paipa ahumahi paerewa 1,000-putu te roa, tae atu ki te 30% o te hekenga pēhanga katoa ka taea te kī ko te waku e puta mai ana i ngā hononga. E whakaatu ana tēnei i tōna pānga nui ki te rahi o te papu, te whakapaunga pūngao, me te whai huatanga whānui o te pūnaha.

Pānga ki te pono, te haumaru, me te wā kore mahi

Ko te hanganga pai o ngā taputapu te mea e whakatau ana i te haumaru o te mahi katoa. Mēnā ka rahua te taputapu pēhanga teitei, ka puta he turuturu kino, ka pāngia ngā whare e ngā turuturu rauemi morearea me ngā motuhanga kore i whakaritea. E whakaatu ana ngā raraunga ahumahi ko ngā turuturu e pā ana ki te taputapu me ngā huihuinga honohono hē te take o te 15% ki te 20% o ngā tukunga rere i roto i ngā tipu tukatuka matū, ā, he mea nui ngā whakaritenga tika mō te tutuki i ngā whakaritenga taiao, te haumaru o ngā kaimahi, me te whakaiti i te wā whakatā o te mahi.

Ngā whakaaro mō te utu me te huringa ora

Ahakoa he 10% ki te 15% noa iho o te whakapaunga whakapaipai tuatahi i roto i tētahi kaupapa paipa nui, he nui te pānga o ēnei ki ngā tahua tiaki roa. Mā te whakarite i tētahi hononga me te roanga hoahoa 20-tau, kaua ki tētahi atu hononga iti ake te utu, 5-tau te roa, ka taea te whakaiti i ngā utu whakakapinga huringa ora tae atu ki te 60%. Ka whakaurua tēnei tataunga ki ngā utu whakakapinga tika me te mahi, ngā whakaritenga tūāpapa, me te moni whiwhi whakaputa ngaro e pā ana ki ngā huringa tipu kua whakaritea.

Ngā momo hononga paipa ahumahi

Ko te whirihoranga āhuahanga me te tikanga hononga o tētahi hononga e whakatau ana i tōna pai mō ngā whakaritenga hihiri wai motuhake, ngā tikanga huihuinga, me ngā wā tiaki.

Ngā āhua me ngā mahi taunga noa

Ko te āhua o te hononga e whakatau ana i te huarahi e whakatere ai te wai i roto i te pūnaha. Ka whakarerekētia e ngā tuke (e hangaia ana i ngā koki 45° me te 90°) te ahunga rere, ko ngā tī me ngā whakawhiti ka wehea, ka whakakotahi rānei i ngā awa rere. Ka whakawhitihia e ngā taputapu whakaiti te diameter o ngā paipa hei whakahaere i te tere o te wai, e puta mai ana i ngā whirihoranga porowhita (ōrite) me ngā whirihoranga āhua rerekē (koreōrite). Ka whakatakotoria motuhake ngā taputapu whakaiti āhua rerekē ki roto i ngā rārangi wai whakapae me te taha papatahi ki runga hei ārai i te hanganga o te pute hau, he mea nui tēnei hei pupuri i te pane momi papu pumau.

Ngā tikanga hononga me te wā e whakamahia ai

Ngā tikanga honongaKa whakatau i te tere o te huihuinga me te manawanui pēhanga mōrahi. Ko ngā hononga whakapiri-tuara e whakarato ana i te hanganga teitei rawa atu mō ngā raina pēhanga teitei (he maha ngā wā ka neke atu i te 3,000 psi) engari me tino mohio ki te whakamātautau whakapiri me te whakaahua X-ray. He pai ake ngā hononga whakapiri-tuara mō ngā paipa poka iti ake (i raro i te 2 inihi NPS) me karo i te taupatupatu whakapiri o roto. Mā ngā hononga miro (pēnei i te NPT, BSPT rānei) ka taea te huihui tere i roto i ngā tono pēhanga iti, kāore i te tino nui, ko ngā hononga flanged ka āwhina i te tiaki auau me te wetewete tere.

Te whakataurite i te momo me te hononga

Ko te whiriwhiri i te momo taunga tino pai me whakataurite tika i ngā herenga ā-tinana, ngā whakaritenga huihuinga, me ngā whakaritenga whakahaere.

Ripanga 1: Whakataurite i ngā Tikanga Hononga Whakauru

Ngā Rauemi mō ngā Hononga Paipa Ahumahi

Ko te whiriwhiri rauemi te mea tino nui pea i roto i te whakatau i te uarangā hononga paipa ahumahiMe tu atu te koranu, te pūmua rānei kua whiriwhiria ki te hanganga matū o te rauemi, te awhe pāmahana whakahaere, me te kōtaha pēhanga ā-roto, me te kore e hohoro te pirau.

Ngā rauemi noa me ngā whakamahinga noa

Ko te maitai waro (hei tauira, ASTM A234 WPB) te mea tino pai mō te umanga, he mea tino pai mō ngā taiao kore-waikura, he nui te ahotea pērā i te kawe i te mamaoa me te wai. Ko te maitai kore-waikura (pērā i ngā reanga 304/304L me te 316/316L) he ātete nui ki te waikura; kei roto i te 316L te 2% ki te 3% molybdenum hei ātete i te pakaru o te hauhā. Mō ngā rauemi tino kaha, ka whakamahia ngā koranu tauhou pērā i a Hastelloy, Monel, Titanium rānei. I tetahi atu taha,ngā kōwhiringa kore-whakarewaKo ngā mea pēnei i te PVC, te CPVC, me te PTFE te nuinga o ngā mea e whakamahia ana mō ngā tono tino parakore me te waikawa e whakahaerehia ana i ngā pāmahana taiao, i ngā pāmahana teitei rānei.

Ngā taupatupatu pāmahana, waikura, me te pēhanga

Ka whakataurite tonu ngā kaihangarau i ngā rohe pāmahana, te ātete ki te waikura, me te kaha hua ki ngā tahua hoko. Hei tauira, ahakoa ka ngaro te kaha kume o te maitai waro paerewa i runga ake i te 400°C (750°F), ko ngā maitai koranu kua pania ki te chromium me te molybdenum (pēnei i te P11, P22 rānei) ka mau tonu te pumau o te hanganga tae atu ki te 600°C (1,112°F). Heoi, ka taea e ēnei tāpiri koranu te whakanui ake i ngā utu rauemi mata mā te 150% ki te 300% ki te whakaritea ki te maitai waro taketake. Waihoki, ahakoa he tino ātete waikawa ngā kirihou, ka heke tere te kaha ki te whakahaere pēhanga ina tata te pāmahana ki te 93°C (200°F).

Te whakataurite i te kōwhiringa rauemi

E whakaatu ana te ripanga e whai ake nei i ngā paepae mahi me ngā āhuatanga ōhanga o ngā rauemi taunga noa.

Ripanga 2: Ngā Taurite Mahi Rauemi

Ngā Paerewa Kōwhiringa me ngā Whakamahinga

Mā te piripono ki ngā paerewa hangarau ka taea te whakarite kia pai te mahi a te hononga i raro i ngā tikanga kua tohua. Mā ngā whakahaere paerewa o te ao e whakarato ngā anga e whakahaere ana i ngā ine, ngā āhuatanga rauemi, me ngā whakatauranga pēhanga-pāmahana.

Ngā āhuatanga whiriwhiri motuhake mō te tono

Ko te āhua o te wai e haria ana e whakatau ana i ngā whakaritenga āhuahanga me te whakaotinga mata taketake. Ko ngā paru whakakoi i roto i te keri e hiahia ana ki ngā hononga pakitara matotoru me ngā arai ātete-kakahu, ko ngā tono rongoā koiora e hiahia ana ki te maitai kore waikura tino-teitei (UHP). I roto i ngā taiao rongoā, me whakakanapa hiko ngā whakaotinga mata o roto ki te toharite taratara (Ra) o te 15 microinches, iti iho rānei, hei ārai i te noho pūngao huakita me te whakarite kia tino ma.

Ngā waehere, ngā paerewa, me ngā whakatauranga pēhanga

Ko te American Society of Mechanical Engineers (ASME) te kaiwhakatakoto i ngā anga matua mō ngā āhuatanga me te pēhanga e whakamahia ana puta noa i te ao. E kapi ana te ASME B16.9 i ngāngā taputapu whakarewa pūmau i hangaia i te wheketere, i te mea ko te ASME B16.11 te kaiwhakahaere o ngā hononga hanga (te whakarewa-pūngao me te miro). Kāore ngā whakatauranga pēhanga i te tino pumau; hei tauira, ka ōrite te hononga hanga Akomanga 3000 ki te matotoru o te pakitara paipa o te Wāhanga 80, engari ko tōna pēhanga mahi tino whakaaetia (MAWP) ka heke haere i te taha rārangi i te pikinga o ngā pāmahana whakahaere. Waihoki, ko ngā flanges e whakahaerehia ana e te ASME B16.5 ka kite i te hekenga nui o ō rātou kaha pēhanga i ngā pāmahana teitei puta noa i ngā tohu Akomanga 150 ki te Akomanga 2500.

Te tukanga whiriwhiringa whakaurunga taahiraa-i-te-taahiraa

Ka whai te tukanga whakatakotoranga i tētahi raupapatanga kua whakaritea hei whakarite i te haumaru me te tutuki i ngā whakaritenga. Tuatahi, ka tautuhia e ngā miihini ngā herenga pāpāho, tae atu ki te hanganga matū, te pāmahana whakahaere mōrahi, me te pēhanga ngaru teitei. Tuarua, ka tatauhia te rārangi paipa e hiahiatia ana (te matotoru o te pakitara) i runga i te MAWP. Tuatoru, ka tīpakohia te akomanga whakauru me te momo hononga e rite ana (hei tauira, te hononga-tuara o te Wāhanga 40, te miro Akomanga 3000 rānei). Hei whakamutunga, ka manatokohia te hototahitanga o ngā rauemi ki ngā ripanga waikura o te umanga, me te whakarite kia noho tonu te whakaaetanga waikura e tumanakohia ana i raro i te 0.1 mm ia tau mō te huringa mahi paerewa 20-tau.

Me pēhea te whakatau i te hoko whakamutunga

Ko te whakawhiti mai i ngā whakatakotoranga hangarau ki te hoko me arotake i te hua ā-tinana me te pono o te mekameka tuku. Kāore he painga o tētahi whakatakotoranga tino tika ā-pāngarau mēnā ka tukuna e te kaiwhakarato ngā wāhanga kāore i te tino arohia, kāore rānei i te whakarato i ngā tuhinga whakarewa tika.

Ngā paearu aromatawai hangarau me te rauemi

Ko te whakapūmau kounga te paearu matua mō te hoko. Me tono ngā kaihoko kia whakamahia ngā Pūrongo Whakamātautau Rauemi (MTR) e tutuki ana i te EN 10204 Momo 3.1 hei manatoko i te hanganga matū me ngā āhuatanga miihini. Hei tāpiri, ko te pumau o te mekameka tuku e whakatau ana i te aromatawai i te Rahinga Ota Iti rawa (MOQ) a te kaihanga me ngā wā arahi. Mō ngā taputapu maitai waro paerewa, he 2 ki te 4 wiki te wā arahi, engari ko ngā koranu tauhou i hangaia kia rite ki te hanga ka roa pea te 16 ki te 24 wiki, ka raru pea ngā kaupapa kaupapa mena kāore i te hokona wawetia. Me whiriwhiri tika ngā reiti hapa e whakaaetia ana i roto i te whakaaetanga ratonga matua, me te arotahi ki raro iho i te 0.5% mō ngā wāhanga hanganga nui.

Rārangi arowhai whakatau whakamutunga

Me whakamahi ngā tīma hoko i tētahi matatika aromatawai pakari i mua i te tukunga o tētahi ota hoko. Kei roto i tēnei ko te manatoko kei te kaiwhakarato te tiwhikete ISO 9001 me ngā tiwhikete API, ASME rānei e tika ana. Me whakataurite ngā tohu rauemi, ngā ine, me ngā akomanga pēhanga ki te hoahoa paipa me ngā taputapu taketake (P&ID). Hei tāpiri, me whakaū ngā kaihoko i ngā taipitopito whakahaere, tae atu ki ngā paerewa takai (pēnei i te tiakitanga o te taupoki pito kirihou mō ngā hononga whakarewa-tuarua hei ārai i ngā kino o te kawe) me te wātea o ngā wāhi pupuri tirotiro tuatoru (TPI) i te wā o te tukanga hanga.

Ngā Whakaaro Matua

• Ko ngā whakatau me ngā take matua mō ngā hononga paipa ahumahi
• Ngā whakaritenga, ngā whakaritenga, me ngā arowhai mōrearea e tika ana kia whakamanahia i mua i tō whakaae
• Ngā mahi whai muri me ngā whakatūpato ka taea e ngā kaipānui te tono tonu

Ngā Pātai Auau

He aha ngā momo paipa ahumahi e whakamahia whānuitia ana?

Ka huri te ahunga o ngā tuke, ka wehea, ka whakakotahi rānei te rere o ngā tī, ka huri te rahi o ngā paipa i ngā taputapu whakaiti, ā, ka whakamutua ngā raina e ngā taupoki, e ngā mono rānei. Kōwhiria i runga i te ara rere, te pēhanga, me ngā hiahia tiaki.

Ko tēhea rauemi taunga te mea pai mō te mahi waikura, mō te mahi pāmahana tiketike rānei?

He mea noa te kowiri tira hei ātete ki te waikura me te wera. Mō ngā rauemi pakari ake, whakaūhia te kounga me te hototahitanga ki ō āhuatanga wai, pāmahana, me te pēhanga.

Āhea me whakamahi ahau i te hononga whakapiri-tua hei utu mō ngā hononga miro?

Whakamahia te hononga whakapiri mō ngā aho pēhanga teitei, ngā aho pumau, ngā aho tino hira rānei. Whakamahia ngā hononga miro mō ngā pūnaha whaipainga iti ake, iti te pēhanga, ina koa ko te tāutanga tere me te tiaki māmā ake te kaupapa matua.

Me pēhea te whiriwhiri i te whakaiti tika mō te rārangi wai whakapae?

Whakamahia he whakaiti āhua rerekē me te taha papatahi ki runga hei whakaiti i te mōrearea o ngā putunga hau. Mā tēnei ka āwhina i te pupuri i te momi papu pumau me te rere maeneene o te wai.

Ka taea e nbfh-metal.com te whakarato i ngā momo hononga paipa ahumahi rerekē?

Āe. Kei a nbfh-metal.com ngā hononga whakarewa ahumahi me ngā kōwhiringa hononga e pā ana. Whakatauritehia te momo hononga ki te rahi o tō paipa, te akomanga pēhanga, te rauemi, me te taiao ratonga i mua i te tono.