Kupu Whakataki:

I roto i te whakamahinga o ia rā o ngā kaiwhakamahi takirere pūrerehua whānui, he maha ngā wā ka whakaatahia he raruraru. Arā, ko te takirere pūrerehua whānui e whakamahia ana mō ngā momo pēhanga rerekē he pāpāho nui, pērā i te mamaoa, te wai pēhanga teitei me ētahi atu mahi pēhanga, he tino uaua ki te kati. Ahakoa te uaua o te kati, ka kitea tonu he āhuatanga turuturu, he uaua ki te kati pūmau, ka hua ake he raruraru nā te hoahoa hanganga o te takirere me te kore e ranea o te rohe o te taumata o te taipana putanga.

Te tātari i ngā take mō te uaua ki te whakawhiti i ngā takirere whānui

Ko te kaha whakaputa whānui mō te rohe whakapae o te pakeke he 60-90kg, i runga i te rahi o te tinana.

Ko te ahunga rere whānui o te takirere pūrerehua kua hangaia kia iti ki roto, kia teitei ki waho. Ina kati te takirere e te tangata, ka pana whakapae te tinana tangata i te wira ringaringa kia huri, kia neke ai te taupoki takirere ki raro kia tutuki ai te katinga, e hiahiatia ana hei wikitoria i te huinga o ngā kaha e toru, arā:

1) Te pana o runga tuaka Fa;

2) te kaha o te takai me te waku o te kakau Fb;

3) Te waku whakapā o te kakau me te matua takirere Fc

Ko te tapeke taipana ko ∑M=(Fa+Fb+Fc)R

E kitea ana, ko te nui ake o te karapa, ko te nui ake o te kaha pana tuaka, ina tata ki te āhua kati, ko te kaha pana tuaka tata ki te pēhanga tuturu o te whatunga paipa (nā te katinga o P1-P2 ≈ P1, P2 = 0)

Mena ka whakamahia he takirere pūrerehua DN200 ki runga i te paipa mamaoa 10-paera, ko te pana tuatahi o te axial kati anake ko Fa = 10 × πr2 = 3140kg, ā, ko te kaha porowhita whakapae e hiahiatia ana mō te kati e tata ana ki te rohe o te kaha porowhita whakapae ka taea te whakaputa mai i te tinana tangata noa, nō reira he tino uaua ki te tangata te kati katoa i te takirere i raro i ēnei āhuatanga mahi.

Heoi anō, e taunaki ana ētahi wheketere kia tāutahia tēnei momo takirere ki te taha whakamuri, ka ea ai te raruraru o te uaua ki te kati, engari ka puta ake te raruraru o te uaua ki te whakatuwhera i muri i te kati.

 

He rerekē ngā take o te turuturu o te takirere pūrerehua hiko whānui nui a Tianjin Zhongfa Valve-ZFA, he rerekē ngā āhuatanga o te turuturu o te takirere pūrerehua hiko whānui nui i runga i ngā pūnaha rerekē, ā, he rerekē ngā take, kia rua ngā take hei tātari:

 

Tuatahi, ko te wā hangahanga i puta mai i te turuturu ā-roto o te takirere pūrerehua hiko diameter nui: 

① te kawe me te hiki i te mea he kino te whānui o te takirere pūrerehua hiko whānui, ka puta te turuturu o te takirere pūrerehua hiko whānui;

② wheketere, i muri i te korenga o te pēhanga wai i takaro i te whakamaroke hiko nui o te flange pūrerehua takirere me te maimoatanga ārai-waikura, ka hua ake te hanganga o te turuturu ā-roto o te waikura mata hiri;

③ Kāore i te wātea te tiaki i te papa hangahanga, kāore i te whakauruhia te takirere pūrerehua hiko whānui nui ki ngā pito e rua o te matapo, kia kore ai e pā te ua, te onepu me ētahi atu poke ki roto i te nohoanga takirere, ka puta he turuturu;

④ I te wā tāutanga, kāore he hinu e werohia ki roto i te nohoanga takirere, ka puta he poke e uru ana ki muri o te nohoanga takirere, ka wera rānei nā te turuturu o roto i te wā whakarewa;

⑤ Kāore te takirere i te tāuta ki te tūranga tuwhera katoa, ka pakaru te pōro. I te wā e whakarewa ana, ki te kore te takirere i te tūranga tuwhera katoa, ka pakaru te pōro i te wā e whakarewa ana, ā, ina whakakāhia, ina whakawetohia te pōro me te mākū whakarewa, ka pakaru anō te nohoanga takirere, ā, ka puta he turuturu o roto;

⑥ Te para whakarewa me ētahi atu toenga hangahanga i puta mai i ngā karawarawa o te mata hiri;

I te wā o te wheketere, i te wā tāutanga rānei, ka puta he turuturu i te tūranga hē o te takirere, i te wā rānei o te whakaurunga. Ki te hē te koki o te kakau takirere, o ētahi atu taputapu rānei o te huihuinga, ka turuturu te takirere pūrerehua hiko whānui.

 

Tuarua, ko te roa o te wā mahi i puta mai i te turuturu o te takirere pūrerehua hiko whānui nui:

① Ko te take e tino kitea ana ko te whakaaro o te kaiwhakahaere mahi ki ngā utu tiaki nui ake o te korenga o te tiaki i te takirere pūrerehua hiko whānui nui, te korenga rānei o te whakahaere pūtaiao o te takirere pūrerehua hiko whānui nui me ngā tikanga tiaki o te takirere pūrerehua hiko whānui nui, te korenga o te tiaki ārai, ka hua ake te korenga o ngā taputapu i mua;

② mahi hē, kāore rānei i te rite ki ngā tikanga tiaki mō te tiaki i puta mai i te turuturu ā-roto;

③ I roto i te mahi noa, ka rakuraku ngā toenga hangahanga i te mata hiri, ka puta he turuturu o roto;

④ Ka pakaru te mata hiri i te horoinga paipa kāore i te tika, ā, ka turuturu te wai o roto;

⑤ Te kore tiaki, te kore mahi rānei o te takirere pūrerehua flange hiko whānui-rahi mō te wā roa, ka hua ake te nohoanga takirere me te pōro e mau ana, ka pakaru te hiri i te wā e whakawhiti ana i te takirere pūrerehua flange hiko whānui-rahi hei hanga turuturu ā-roto;

⑥ Kāore i te wātea te pana takirere pūrerehua hiko whānui nui hei take i te turuturu o roto. Ahakoa te tūnga whakatuwheratanga me te kati o te takirere pūrerehua hiko whānui nui, ka turuturu pea mēnā ka hongahia 2° ~ 3° te roa;

⑦ He maha ngā takirere pūrerehua hiko whānui-rahi-rahi he poraka aukati kakau te nuinga, ki te whakamahia mō te wā roa, nā te waikura me te pirau me ētahi atu take ka kohia te waikura, te puehu, te peita me ētahi atu paru i waenganui i te kakau me te poraka aukati kakau, ka meinga ēnei paru kia kore e taea te huri i te takirere pūrerehua hiko whānui-rahi ki tōna tūranga ka puta he turuturu - ki te tanumia te takirere pūrerehua hiko whānui-rahi, ka puta he waikura me ngā poke i te roa o te kakau takirere, ka aukati i te hurihanga o te pōro takirere ki tōna tūranga, ka hua ake he turuturu o te takirere pūrerehua hiko whānui-rahi.

⑧ He iti hoki te pūkaha whānui, ki te kore e tika te rohe mō te wā roa, ka puta he turuturu ā-roto nā te waikura, te whakapakeketanga o te hinu, te wetekina rānei o ngā pūtu here;

⑨ te whakatakoto i te tūranga takirere hiko ki mua, kāore e pā ana ki te tūranga kei roto hei take i te turuturu o roto;

⑩ te kore o te tiaki me te tiaki ā-wā, ka maroke te hinu hiri, ka whakapakeke, ka kohia te hinu hiri maroke ki roto i te nohoanga takirere rapa, ka aukati i te nekehanga o te nohoanga takirere, ka pakaru te hiri.

He tīma QC ngaio ā te wheketere takirere ZFA hei whakarite kia ora te āhua o roto me te āhua o ia takirere wheketere. I taua wā anō, he tīma hangarau ngaio me ngā tīma hoko-muri hei āwhina i ngā kiritaki ki te whakaoti rapanga maha e pā ana ki te tāutanga me te whakamahinga.