Te ine tikatakirere pūrerehuaHe mea nui te rahi hei whakarite kia tika te taunga me te ārai i ngā turuturu. Nā te mea he mahi nui tā ngā takirere pūrerehua i roto i ngā momo ahumahi. Tae atu ki te hinu me te hau, ngā tipu matū me ngā pūnaha whakahaere rere wai. Ka whakahaerehia e ēnei takirere pūrerehua te tere rere o te wai, te pēhanga, te wehe i ngā taputapu me te whakahaere i te rere o raro.
Mā te mōhio ki te ine i te rahi o te takirere pūrerehua ka ārai i ngā ngoikoretanga o te mahi me ngā hapa utu nui.
1. Ngā kaupapa matua o te takirere pūrerehua
1.1 He aha te takirere pūrerehua? Me pēhea te mahi a te takirere pūrerehua?
Ngā takirere pūrerehuate whakahaere i te nekehanga o ngā wai i roto i te paipa. He kōpae hurihuri te takirere pūrerehua e tuku ana i te wai kia haere ina huri te kōpae kia rite ki te ahunga rere. Mā te huri i te kōpae kia poutū ki te ahunga rere ka mutu te rere.
1.2 Ngā tono noa
E whakamahia ana ngā takirere pūrerehua i roto i ngā momo ahumahi, tae atu ki te hinu me te hau, ngā tipu matū me ngā pūnaha whakahaere rere wai. Ka whakahaere i te tere rere, ka wehe i ngā taputapu me te whakahaere i te rere o te wai. Nā te maha o ngā whakamahinga e pai ai mō ngā ratonga pāmahana me te pēhanga waenga, iti, teitei.
2. Me pēhea te ine i te rahi o te takirere pūrerehua?
2.1 Rahi kanohi ki te kanohi
Ko te rahi kanohi ki te kanohi e pā ana ki te tawhiti i waenga i ngā mata e rua o te takirere pūrerehua ina tāutahia ki roto i te paipa, arā, ko te tawhiti i waenga i ngā wāhanga flange e rua. Mā tēnei ine ka whakarite kia tika te tāutanga o te takirere pūrerehua ki roto i te pūnaha paipa. Mā ngā inenga kanohi ki te kanohi tika ka taea te pupuri i te pono o te pūnaha me te ārai i ngā turuturu. I tetahi atu taha, mā ngā inenga hē ka arahi pea ki ngā tūponotanga haumaru.
Tata ki ngā paerewa katoa e tohu ana i ngā ine kanohi ki te kanohi o ngā takirere pūrerehua. Ko te mea tino whānuitia ko te ASME B16.10, e tohu ana i ngā ine o ngā momo takirere pūrerehua rerekē, tae atu ki ngā takirere pūrerehua. Mā te piri ki ēnei paerewa ka whakarite kia hototahi ki ētahi atu wāhanga o te pūnaha o nāianei a te kiritaki.
2.2 Te whakatauranga pēhanga
Ko te whakatauranga pēhanga o te takirere pūrerehua e tohu ana i te pēhanga mōrahi ka taea e te takirere pūrerehua te tu atu i te wā e mahi haumaru ana. Mēnā he hē te whakatauranga pēhanga, ka pakaru pea te takirere pūrerehua pēhanga-iti i raro i ngā āhuatanga pēhanga teitei, ka hua ake he pakaru o te pūnaha, he mōrearea rānei mō te haumaru.
Kei te wātea ngā takirere pūrerehua i roto i ngā whakatauranga pēhanga rerekē, mai i te Akomanga 150 ki te Akomanga 600 (150lb-600lb) e ai ki ngā paerewa ASME. Ka taea e ētahi takirere pūrerehua motuhake te tu atu ki ngā pēhanga o te PN800, neke atu rānei. Tīpakohia te pēhanga pūnaha i runga i ngā whakaritenga tono. Mā te whiriwhiri i te whakatauranga pēhanga tika ka whakarite kia pai te mahi me te roa o te ratonga o te takirere pūrerehua.
3. Te whānui ingoa o te takirere pūrerehua (DN)
Ko te whānui ingoa o te takirere pūrerehua e rite ana ki te whānui o te paipa e hono ana. He mea nui te rahi tika o te takirere pūrerehua hei whakaiti i ngā ngaronga pēhanga me te whai huatanga o te pūnaha. Ka taea e te takirere pūrerehua te rahi hē te whakawhāiti i te rere, te hekenga pēhanga nui rawa rānei, ka pā ki te mahi a te pūnaha katoa.
Ko ngā paerewa pēnei i te ASME B16.34 e whakarato ana i ngā aratohu mō te rahi o te takirere pūrerehua, kia rite ai, kia hototahi ai hoki ngā wāhanga i roto i tētahi pūnaha. Mā ēnei paerewa ka āwhina i te whiriwhiri i te rahi o te takirere pūrerehua e tika ana mō tētahi tono motuhake.
4. Te Ine i te Rahi o te Nohoanga
Tenohoanga takirere pūrerehuaMā te rahi ka whakatau te taunga tika me te mahi a te takirere pūrerehua. Mā te ine tika ka taunga te nohoanga ki te tinana takirere. Mā tēnei taunga ka ārai i ngā turuturu, ā, ka mau tonu te pumau o te pūnaha.
4.1 Te Tukanga Ine
4.1.1. Inehia te whānui o te kōhao whakairi (HS): Whakatakotoria he caliper ki roto i te kōhao, ka ine tika i te whānui.
4.1.2. Whakatauhia te teitei o te nohoanga (TH): Whakatakotoria he rīpene ine ki raro o te nohoanga. Inehia poutū ki te taha o runga.
4.1.3. Inehia te matotoru o te nohoanga (CS): Whakamahia he caliper hei ine i te matotoru o tētahi paparanga kotahi huri noa i te taha o te nohoanga.
4.1.4. Inehia te diameter o roto (ID) o te nohoanga takirere: Puritia te maikiromita ki te rārangi pokapū o te nohoanga takirere pūrerehua.
4.1.5. Tātaihia te diameter o waho (OD) o te nohoanga takirere: Whakatakotoria te caliper ki te taha o waho o te nohoanga takirere. Totorohia hei ine i te diameter o waho.
5. Te wehewehenga taipitopito o ngā rahi o te takirere pūrerehua
5.1 Teitei o te takirere pūrerehua A
Hei ine i te teitei A, whakatakotoria te caliper, te rīpene ine rānei ki te tīmatanga o te taupoki pito o te takirere pūrerehua, ka ine ki te tihi o te kakau takirere. Kia tino kapi te ine i te roa katoa mai i te tīmatanga o te tinana takirere ki te pito o te kakau takirere. He mea nui tēnei inenga hei whakatau i te rahi whānui o te takirere pūrerehua, ā, he tohutoro hoki mō te pupuri wāhi mō te takirere pūrerehua i roto i te pūnaha.
5.2 Te whānui o te pereti takirere B
Hei ine i te diameter o te pereti takirere B, whakamahia he caliper hei ine i te tawhiti mai i te taha o te pereti takirere, me te aro ki te haere mā waenganui o te pereti takirere. Mēnā he iti rawa ka turuturu, mēnā he nui rawa ka piki ake te taipana.
5.3 Te matotoru o te tinana takirere C
Hei ine i te matotoru o te tinana takirere C, whakamahia he caliper hei ine i te tawhiti i runga i te tinana takirere. Mā ngā inenga tika ka tika te uru me te mahi i roto i te pūnaha paipa.
5.5 Te Roa o te Kī F
Whakatakotoria te caliper ki te roa o te kī hei ine i te roa F. He mea nui tēnei inenga kia tika ai te uru o te kī ki te actuator o te takirere pūrerehua.
5.5 Te whānui o te kakau (te roa o te taha) H
Whakamahia te caliper hei ine tika i te diameter o te kakau. He mea nui tēnei inenga kia tika ai te uru o te kakau ki roto i te huihuinga takirere pūrerehua.
Rahi Pūaha 5.6 J
Inehia te roa J mā te whakanoho i te caliper ki roto i te kōhao, ka totoro atu ki tērā taha. Mā te ine tika i te roa J ka taea te whakarite kia hototahi ki ētahi atu wāhanga.
5.7 Rahi Miro K
Hei ine i te K, whakamahia he ine miro hei whakatau i te rahi tika o te miro. Mā te ine tika i te K ka tika te miro me te hononga haumaru.
5.8 Tau o ngā Pūaha L
Tatauhia te tapeke o ngā kōhao i runga i te flange o te takirere pūrerehua. He mea nui tēnei inenga kia taea ai te here mau i te takirere pūrerehua ki te pūnaha paipa.
5.9 PCD Tawhiti Pokapū Whakahaere
Ko te PCD te tohu o te diameter mai i waenganui o te kōhao hononga mā waenganui o te pereti takirere ki te kōhao whakarara. Whakanohoia te caliper ki waenganui o te kōhao lug ka toro atu ki waenganui o te kōhao whakarara hei ine. Mā te ine tika i te P ka tika te tūnga me te tāutanga ki roto i te pūnaha.
6. Ngā Tohutohu me ngā Whakaaro Whaihua
6.1. Te whakatikatika hapa i ngā taputapu: Me whakarite kia tika te whakatikatika i ngā taputapu ine katoa. Mā ngā taputapu hē ka hua ake he inenga hē.
6.2. Te hē o te whakarārangi i te wā e ine ana: Ka taea e te hē o te whakarārangi te arahi ki ngā pānuitanga hē.
6.3. Te kore aro ki ngā pānga o te pāmahana: Whakaarohia ngā huringa pāmahana. Ka taea e ngā wāhanga whakarewa me te rapa te whānui, te whakawhāiti rānei, ka pā ki ngā hua ine.
Ko te ine tika i ngā nohoanga takirere pūrerehua me aro nui ki ngā taipitopito me te whakamahi i ngā taputapu e tika ana. Mā te whai i ēnei mahi ka whakarite kia tika te tāutanga o te takirere pūrerehua, ā, kia pai hoki te mahi i roto i te pūnaha.
7. Whakamutunga
Mā te ine tika i ngā rahi o te takirere pūrerehua ka tino pai te mahi me te pono o te pūnaha. Whakamahia ngā taputapu kua whakatikatikaina mō ngā inenga tika. Whakarārangihia ngā taputapu kia tika ai te whakarite kia kore ai e hapa. Whakaarohia ngā pānga o te pāmahana ki ngā wāhanga whakarewa. Rapua he tohutohu ngaio ina hiahiatia. Mā ngā inenga tika ka ārai i ngā raruraru whakahaere, ka whakapai ake hoki i te pai o te pūnaha.