Kia kati tonu te takirere putanga i te wāNgā papu pūweroKa puta mai i te mahi he maha ngā mōrearea hangarau.
Te huringa pūngao kāore i te whakahaeretia me te kore taurite o te pāmahana
- 1.1 I raro i te āhua kati o te pikinga o te pāmahana reo, ka huri te nuinga o te pūngao whakauru hei pūngao wera. Kāore e taea e te reo te tango i te wera, ka piki tere te pāmahana i roto i te rūma papu. Mā te mahi tonu ka puta te mimiti o te reo, ka tere ake te waro o te rauemi hiri.
1.2 Te rahunga o te pūnaha hiri I roto i te taiao pāmahana teitei me te mimiti o te reo, ka rahunga te hiri ā-ringa e whakawhirinaki ana ki te whakahinuhinu me te whakamatao o te reo – ka maroke te waku o te hiri ā-ringa, ā, ka wera te mata o te hiri.
Te ahotea ā-mīhini rerekē
- 2.1 Te kaha tuaka e nui ake ana Ko te kaha tuaka o te takirere kati he 1.5-5 ngā wā o ngā āhuatanga mahi noa, ā, ka eke pea te kawenga whāngai pana ki tōna rohe whāngai, ka hua ake te pakaru o te whare whāngai, te whakarerekētanga rānei o te whare whāngai.
2.2 Te wiri me te kino o te ngenge Ko te rerekētanga o te whānui wera i puta mai i te pāmahana teitei ka arahi ki te whakarerekētanga wera, te ahotea wera rānei, te āputa rerekē i waenga i te impeller me te whare papu, me te awe o te kawenga waipēhi kore taurite, ka pakaru te taurite hihiri o te rotor, ka piki ake te wiri, ka pakaru hoki ngā wāhanga i te ngenge.
Te pakaru me te kino o ngā rauemi
3.1 Te āheinga NPSH mō te mimiti i te reo hurihuri [kia iti iho te āheinga cavitation (NPSHa) o te taputapu i te NPSHr e tika ana mō te papu], ka hangaia he mirumiru, ā, ka eke te ngaru ru i hangaia e te hinganga o ngā mirumiru ki te 690MPa, ka hua ake he poka me te pakaru o te honikoma o te kaikawe impeller.
3.2 Te ngoikore o te hanganga whakarewa Mō ngā impeller maitai kore waikura austenitic, ka pāngia pea e te aro i ngā pāmahana tiketike o te rohe, ā, ka piki ake te tere o te waikura intergranular, ka heke hoki te kaha kume. Mō ngā impeller maitai waro, he nui ake ngā raruraru i ngā pāmahana tiketike, pērā i te waikura me te tango waro i te pāmahana teitei, ka heke te kaha o te mata me ngā kaupapa here whānui; Mena kei roto he poke pērā i te whanariki me te whākawa, he ngāwari te wehewehe i ngā rohe witi i ngā pāmahana teitei, ka pakaru te wera me te ngatata ngāwari i te wā e whakamahia ana; I raro i te pāmahana teitei mō te wā roa, he ngoikore te ātete ngoki o te maitai waro, ā, ka tere ake te whakarerekētanga ngoki o te pāmahana tiketike o te rohe, ka mutu ka pakaru te impeller, ka ngoikore rānei te ngenge.
Te haumarutanga pūnaha me ngā mōrearea ōhanga
4.1 Ka nui ake te pēhanga o te anga pehanga i te rohe, ā, mā te mahi a te takirere kati ka eke te pēhanga putanga o te papu ki te 120-150% o te uara kua whakatauria, ā, kei reira te tūponotanga o te pakaru i roto i te pēhanga kua whakaritea o te takirere haumaru, ka puta ai te tukunga pehanga, te pakaru rānei o te hononga paipa.
4.2 Te whakapaunga pūngao me ngā utu tiaki nui Ko te mahi kati takirere te "āhua whakamate" o ngā papu toremi, e whakanui ana i te whakapaunga pūngao i te wā poto, ā, mā te mahi mō te wā roa ka arahi ki te kino kino ki ngā taputapu, ā, ka piki ake pea te utu tiaki whānui mā te 3-10 ngā wā.
Te hekenga o ngā tikanga mahi pāpāho motuhake
Mō ngā mea pupuhi (hei tauira, te LPG), mā te mahi o te takirere kati ka tere ake te mimiti o te wāhanga wai, ā, mā te rere o ngā wāhanga-rua o te hau-wai i roto i te rūma papu ka puta he huringa ohorere o te rere, ka hua ake he wiri ā-wā o ngā kaha tuaka me te tere ake o te pakaru o ngā wāhanga.
Ngā wheako ahumahi me ngā whakaritenga paerewa
6.1 Ngā wheako ahumahi E ai ki ngā wheako tono hangarau tūturu, kaua e neke atu i te 2 meneti te roa o te wā e whakahaerehia ai te takirere papu centrifugal, ā, ko te tikanga he 1 meneti noa iho. E taunakihia ana kia whakatūria he pūnaha whakahaere raka hei whakaoho aunoa i te kaupapa tiaki kati ina kati te takirere putanga, ina neke atu rānei.
6.2 E hiahiatia ana e te whakatakotoranga paerewa kia kīia e te paerewa API 610 Putanga 12 he tere te pikinga o te pāmahana o ētahi papu kaha-teitei, he taputapu whakauru, he papu maha-wāhanga rānei ina kati te takirere putanga, ā, ka kore e taea te whakamātautau, ka kore rānei e haumaru ina kati te takirere. He hononga tata te pikinga o te pāmahana ki te mātotoru mana. Ko te mātotoru mana PD, ka taea te whakatau tata penei:
P te whakatauranga: Te whakatauranga mana mō ia wāhanga ina he hp te wai (MW rānei)
D imp: Te whānui o te impeller kua whakatauria i roto i te in. (m rānei)
Pūwero D: Te whānui o te flange putanga ingoa i roto i te inihi (m rānei). Mō ngā papu momi-rua, kotahi-wāhanga, ko te pūwero D te whānui o te flange whakaurunga.
Ko te uara matua mō te PD ko te 0.286 hp/in.3 (13 MW/m3), ā, i tua atu i tēnā, kaua e whakahaerehia te papu me te takirere putanga kua kati i te wā whakamātautau mahi.
Wā tuku: Pipiri-04-2025