Ngā āhuatanga o te mita rere Vortex

Ka taea e ia te ine i ngā momo pāpāho e toru tae atu ki ngā wai, ngā hau, me te mamaoa kua mākū/wera rawa puta noa i te ao. He pai mō te wai whakamatao ahumahi, ngā whakarewa matū, te hau māori, te hau kōpeke, me te mamaoa ahumahi, ka kore e hiahiatia he mita motuhake mō ngā wai rerekē, ka whakaiti hoki i ngā utu hoko me te whakahaere a ngā kiritaki.

Kāore he wāhanga nekeneke i roto i te mita. Ko ngā wāhanga matua he tinana pari pūmau me ngā pūoko, e ārai katoa ana i ngā raruraru pēnei i te kakahu o te impeller, te paru, me te aukati i roto i ngā mita rere tuku iho. Kāore e hiahiatia he wetewete me te horoi auau i raro i ngā tikanga mahi noa, engari me tirotiro noa i ngā waea pūoko i ētahi wā. Ka neke atu i te 10 tau te roa o te ora ratonga, ka whakaiti nui i ngā utu tiaki mō te wā roa.

I runga i te mātāpono Karman Vortex Street, ko te tika o te ine (±1.0%FS – ±1.5%FS) e whakawhirinaki ana ki te auau o te vortex, ā, kāore e pāngia e ngā rerekētanga o te mātotoru wai, te pēhanga, te pāmahana rānei i roto i tētahi awhe. Ka ātete te hoahoa hiri o te whare mita me te pūoko ki te pokanoa hikohiko, te puehu, me te haumākū i ngā wāhi ahumahi, kia pai ai te tukurua o te ine.

Ka eke te ōwehenga hurihanga ki te 1:10 ki te 1:20, he mea e tika ana mō ngā horopaki he nui ngā rerekētanga o te rere (pēnei i te whāngai matū i te tauhohenga me te whakatikatika i te kawenga o te poiha mamaoa). Ka hipokina e ngā tauira paerewa te DN15 – DN300, ā, kei te wātea ngā tauira rahi-rahi kua whakaritea (tae atu ki te DN600) hei whakatutuki i ngā hiahia ine o ngā paipa iti me ngā paipa ahumahi nui.

He hoahoa ngāwari te tinana pari, ā, he iti te ātete wai ina haere. He iti ake te ngaronga o tōna pēhanga i ērā o ngā mita rere kōhao me ngā mita rere tāpine. Ka whakaitihia e tēnei āhuatanga te whakapaunga pūngao o te pūnaha kawe paipa, inā koa i roto i ngā paipa ahumahi nui, ā, ka tino whakaitihia te kawenga whakahaere o ngā taputapu hiko pēnei i ngā papu wai me ngā pā, ka tutuki ai ngā whakaritenga penapena pūngao me te tiaki taiao.

Ka tautoko i ngā tikanga tāutanga maha tae atu ki ngā hononga flange me ngā hononga-piri. He iti noa ngā whakaritenga mō ngā wāhanga paipa tika o runga me raro (ko te nuinga he 10D o runga me te 5D o raro), he pai mō ngā wāhi ahumahi he iti te wāhi. Ka taea te whakarite i te rauemi mita mā te ngāwari: kei te wātea te tinana i roto i te maitai waro, te maitai kore waikura 316L, te Hastelloy, me ētahi atu, ā, ka taea te hanga i te tinana pari ki te koranu titanium, ki te uku rānei, ka taea te tu atu i te pāmahana teitei, te pēhanga teitei, me te waikura, ka urutau ki te awhe pāmahana -40℃ – 400℃ me te pēhanga mahi o te PN1.6 – PN4.0MPa.

Ko te nuinga o ngā mita rere vortex hou he mea whakauru ki ngā kaitahuri atamai, e tautoko ana i te tohu anaro 4 – 20mA me te putanga tohu pātere. He hototahi ki ngā kawa whakawhitiwhiti ahumahi matua pēnei i a MODBUS, HART, me Profibus, ā, ka taea te hono atu ki ngā pūnaha whakahaere PLC me DCS, ka taea te aroturuki i te wā-tūturu, te tuku mamao, me te whakahaere pokapū o ngā raraunga rere hei whakatutuki i ngā hiahia o te whakaputa ahumahi aunoa.