E Mārama Ana Koe Ki Ngā Papu Whakapūngao? 8 Ngā Pātai Hangarau E Pā Ana Ki Te Pono O Te Papu

Ø P1: He aha te tikanga he kotahi te rahi o te paipa momi i te pūwero momi o te papu?

He mahi tino noa tēnei i roto i ngā tāutanga papu toriti.

I roto i ngā tono maha, ko tekua tīpakohia te diameter ingoa o te paipa momi kia kotahi te rahi nui atu i te pūwero momi papuKo te tikanga, ka whakamahia he whakaiti hiko rerekē e tika ana hei hono i te paipa ki te papu.

He aha ai?

E toru ngā take matua:

He aha i whakamahia whānuitia ai te whakaiti ira rerekē?

Mō ngā paipa momi whakapae, hewhakaiti rerekē papatahi-ki-rungae whakamahia whānuitia ana hei whakaiti i te tūponotanga o te hanga o ngā pute hau i roto i te raina momi.

Heoi, ehara tēnei i te ture tino mō ngā tāutanga katoa.

Me whakatau te whakatakotoranga o te whakaiti i runga i te whakaritenga o te papu, te pari o ngā paipa, ngā āhuatanga o te wai, me te āheinga o te kohikohi hau.

Te mātāpono hangarau

Ehara i te mea ko te whakanui noa i te paipa momi "kia kotahi te rahi".

Me whai whakaaro te hoahoa ki:

• · Te tere o te momi
• · Te waku me ngā ngaronga pēhanga ā-rohe
• · NPSHa
• · Tauira rere o te papu
• · Te roa o te paipa tika
• · Te wāhi o ngā tuke me ngā takirere
• · Te tūponotanga o ngā putunga hau

Ø Q2: He aha i iti ake ai te takirere whakahaere i te paipa matua?

He rerekē ki ngā paipa momi, kāore ngā takirere whakahaere e tīpakohia ana me te diameter ingoa rite tonu ki te paipa matua.

Hei tauira:

He maha ngā take mō tēnei mahi.

1. Utu iti iho

Ko te tikanga he iti ake te utu o tētahi takirere iti ake i tētahi takirere he rite te diameter ki te paipa matua.

2. He pai ake te whānuitanga o te mana whakahaere

Ka whakahaere te takirere whakahaere i te rere mā te whakarerekē i tōna whakatuwheratanga.

Mena he rahi rawa te takirere, tera pea ka mahi i tētahi whakatuwheratanga iti rawa i raro i ngā āhuatanga noa. Ka taea e tēnei te whakaiti i tōna whānuitanga whakahaere whai hua, ā, ka uaua ake te whakahaere tika i te rere.

Ka taea e tētahi takirere iti te rahi tika te mahi i roto i tētahi awhe whakatuwheratanga e tika ana.

3. Ko te taupatupatu he mate pēhanga teitei ake

Ka whakanuia e te takirere iti ake te tere o te rere, ā, ka whakanuia hoki te hekenga pehanga.

Nō reira, ehara te mātāpono i te mea:

Me whiriwhiri tika te takirere i runga i:

• · Te tere rere
• · Pēhanga rerekētanga
• · CV/KV
• · Te whānuitanga whakahaere e hiahiatia ana
• · Te hekenga pēhanga e whakaaetia ana

Ø Q3: Me pēhanga pai tonu te putanga momi o te papu centrifugal?

Kāore.

Ko tētahi whakaaro hē noa ko te mea me noho te pēhanga momi o te papu toriti i runga ake i te pēhanga o te āhuarangi i ngā wā katoa.

Ko te mea pono, he maha ngā papu ka taea te whakahaere me te taumata wai kei raro iho i te raina pokapū o te papu, e āhei ai te papu ki te hapai ake i te wai mai i raro.

Heoi, ehara i te mea ko te kaha anake o te papu ki te "hiki" i te wai te take matua.

Me tutuki i te pūnaha tūturu te whakaritenga NPSH e hiahiatia ana:

I te piki haere o te hiki momi, ka heke te pehanga i te tomokanga papu, ā, ka nui haere te ngaronga o ngā raina momi.

Nō reira, ka teitei ake te hiki momi, ka tino tirohia te pūnaha mō te tūponotanga o te pokanga.

Ø Q4: Me whai takirere tirotiro i te taha tukunga papu?

I roto i te maha o ngā pūnaha papu,He wāhanga nui o te hoahoa pūnaha te takirere tirotiro tukunga.

E toru ngā painga matua e whakaratohia ana.

1. Ārai i te rere whakamuri

Ina mutu te papu, ka taea e ngā rerekētanga pēhanga i roto i te pūnaha te meinga te wai kia rere anō ki te papu.

Ka ārai te takirere taki i tēnei rere whakamuri.

2. Ārai i te hurihanga whakamuri

Ka taea e te rere whakamuri te huri whakamuri i te impeller papu.

I runga i te whakaritenga o te papu me te taraiwa, ka pā mai pea ngā raruraru ki:

• · Ngā hiri mīhini
• · Ngā peera
• · Ngā hononga
• · Mōta, taputapu taraiwa rānei

3. Āwhina ki te pupuri i te paipa kua kī tonu

I roto i ētahi pūnaha, he mea nui te pupuri i te wai i roto i te raina tukunga mō te tīmatanga anō me te whakahaere pono o te pūnaha.

Heoi, me whiriwhiri te momo takirere, te tūnga tāutanga, me ngā āhuatanga kati kia rite ki te pūnaha tuturu.

Mō ngā pūnaha e pāngia ana e te hama wai, me whai i ētahi atu tikanga pēnei i tengā takirere ārai kore-pahū, ngā takirere ārai kati puhoi, ngā takirere hau, ngā taputapu tiaki ngaru rāneitērā pea e hiahiatia ana.

Ø Q5: He aha te whakatakotoranga paipa tino pai mō te pūnaha papu toremi?

I ētahi wā, ehara i te mea nā te papu tonu te take o te kore pumau o te papu, engari nā te whakaritenga ngoikore o ngā paipa.

Ko tētahi raruraru noa ko:

Ko te mea pai rawa atu

I roto i ētahi pūnaha papu, me piki tonu te paipa tukunga ki te tāke e whiwhi ana, ki te pūnaha rānei e haere ana ki reira.

Mā tēnei ka taea e te hau e tomo ana ki te pūnaha te neke ki te wāhi teitei, ā, ka puta atu.

Ko tētahi whakaritenga pai kua whakamāmāhia koia tēnei:

He aha ngā mea ka tupu i roto i ngā kaupapa tūturu?

I ngā whakaurunga tūturu, he maha ngā wā ka whakauruhia he wāhanga roa whakapae ki roto i ngā paipa.

Ehara i te mea he raruraru te wāhanga roa whakapae.

Ko te mea nui ko te karo i ngā mea e kore e hiahiatia:

• · Ngā tohu teitei
• · Ngā tohu iti
• · Ngā pari whakamuri
• · Ngā wāhi ka taea e te hau te kohikohi

Ki te kore e taea te karo i tētahi wāhi teitei, he mea tika tetakirere tuku hau / takirere hautērā pea e hiahiatia ana.

He aha mēnā ka tāutahia he takirere whakahaere tata ki te pito o te paipa?

Me whai whakaaro tahi te taunga o te takirere whakahaere me te taumata o te tāke, te pēhanga o raro, te hekenga o te pēhanga takirere, me te mōrearea o te poka.

Me pupuri e te pūnaha te pēhanga i te takirere kia rawaka, me te karo i ngā āhuatanga mahi ka arahi pea ki te cavitation.

Ko te kaupapa matua ko:

Ø Q6: Me pēhea te tirotiro i te mahi a te papu i te mara?

Ko tētahi o ngā tikanga tino pono ko te whakatauritengā inenga o te mara tūturu me te pihi mahi papu a te kaihanga.

Ko ngā inenga noa ko:

• · Te tere rere
• · Te pēhanga momi
• · Te pēhanga tukunga
• · Te tere o te papu
• · Te rerekētanga teitei i waenga i ngā pūwāhi ine pēhanga me te raina pokapū papu

Ki hea te wāhi e tika ana kia tāutahia ai ngā ine pēhanga?

Me tāuta ngā ine pēhanga kia tata rawa ki ngā pūwero momi me ngā pūwero tukunga o te papu.

Me tuhi hoki te rerekētanga teitei i waenga i ngā pūwāhi ine pehanga me te rārangi pokapū papu.

Ehara i te mea ko te pane papu anake:

Me whai whakaaro hoki te tatau ki te rerekētanga teitei, me ngā pānga o te tere mēnā e tika ana.

Me pēhea te ine i te tere rere?

Ko te mea tino pai, me whakamahi he taputapu ine rere e tika ana pēnei i:

• · Mita rere aukume
• · Mita rere orooro
• · Mita rere o te tāhū
• · Ētahi atu taputapu ine rere e tika ana

Mena kāore he mita rere e wātea ana, ka taea te whakatau tata i te rere mā te ine i te wā e hiahiatia ana hei whakakī i tētahi tāke he nui te rōrahi e mōhiotia ana.

Me tirotiro noa te pane whakaweto?

Āe, hei tirotiro i te mahi taketake.

Teupoko whakawetoka puta i te kore rere, nō reira kāore he hiahia ki te ine i te rere.

Mā te whakatairite i te pane whakaweto i inehia ki te pihi a te kaihanga ka āwhina i te tautuhi mēnā:

• · Kei te rere te papu i te tere tika
• · Kua tāutahia te diameter tika o te impeller
• · Ko te mahi a te papu he rite tonu ki te pihi e tumanakohia ana

Heoi:

Ka taea e te mahi rere-kore te whakaputa wera nui, te tohanga anō o roto, te kino o te hiri miihini, me ētahi atu raruraru.

Ā, me pēhea te whai huatanga o te papu?

He uaua ake te ine i te whai huatanga nā te mea me whakatau tika te mana whakauru ki te rakau papu.

I roto i ngā whakamātautau parae, ka uru pea tēnei ki te ine i te mana whakauru o te motuka me te whakaaro ki te pai o te motuka me te tuku, te ine tika rānei i te taipana me te tere o te toki.

Ø Q7: He aha te pānga o te matotoru o te wai ki te mahi a te papu tohanga?

Ko te nuinga o ngā pihi mahi papu centrifugal e hangai ana ki te whakamātautau mewai ma i raro i ngā tikanga paerewa.

Ina he nui ake te matotoru o te wai e papuhia ana i te wai, ka tino rerekē te mahi a te papu.

Ko ngā pānga noa ko:

• · Rere iti iho
• · Upoko o raro
• · He iti ake te whai huatanga
• · Te hiahiatanga mana teitei ake

Nō reira:

Me whai whakaaro ki te matotoru tuturu o te wai, te mātotoru, te pāmahana, me te pūwāhi whakahaere.

Mō ngā wai matotoru rawa, ka tino heke pea te whai huatanga o te papu toriti.

I runga anō i te tono,ngā papu nekehanga pai, pērā i ngā papu tīwiri, ngā papu taputapu, ngā papu hurihuri rānei, tera pea ka pai ake te otinga.

Kāore he uara matotoru kotahi e taea te whakamahi hei rohe whānui mō ia papu tohanga. Me aromatawai te pai o te papu i runga i te tono tuturu me te hoahoa papu.

P8: Ka taea e te papu te mahi i roto i te awhe rere e whakaaturia ana i runga i tōna pihi mahi?

Kāore i te tino hiahiatia.

Ahakoa te puta o tētahi pūwāhi ki te pihi papu, ehara i te mea he pūwāhi tika mō te mahi tonu.

Ko te tikanga, me mahi te papu toriti i te mea e tika ana kia rite ki:

He maha ngā tono e aro ana ki tētahi whānuitanga mahi noa huri noa i te80%–120% o te rere o te BEP, engari ko te awhe mahi e whakaaetia ana me hangai tonu ki te whānuitanga mahi i tūtohutia e te kaihanga.

He aha me karo ai i te mahi roa-iti-rere?

Ina iti rawa te rere o te wai i te BEP, ka pā pea ki te papu:

• · Te hurihanga ā-roto
• · Te pikinga o te pāmahana
• · Ngā kawenga radial kua piki ake
• · Te wiri teitei ake
• · Te pakaru o te hiri miihini
• · Ngā kawenga whāriki kua piki ake

Mena kāore e taea te karo i te mahi rere-iti tonu, ko ngā otinga pea ko:

Kōwhiringa 1: Raina whakawhiti/raina whakawhiti iti rawa

Ka whakahokia tonutia tētahi wāhanga o te wai ki te pūtake momi, ki tētahi atu wāhi e tika ana rānei.

Kōwhiringa 2: Puku tere rerekē

Ka taea te whakamahi i te VFD hei whakaiti i te tere o te papu, hei taurite ake hoki i te putanga o te papu ki te hiahia tuturu o te pūnaha.

Ā, me pēhea te rere nui rawa?

Mā te mahi rawa ki te taha matau o te pihi papu ka puta he raruraru, tae atu ki:

• · NPSHr teitei ake
• · Te tawhē NPSH kua whakaitihia
• · Te pokanga
• · Te whakanui ake i te wiri
• · Te taumaha rawa o te motuka
• · Te whakaiti i te whai huatanga

Nō reira:

Ko te pūwāhi whakahaere e hiahiatia ana e tata ana ki te pūwāhi mahi hoahoa me te BEP, me te noho tonu i roto i te awhe whakahaere e whakaaetia ana e te kaihanga.