He aha te Hiranga o te Hiri Ātete-Waikura

Kupu Whakataki

I roto i ngā pūnaha tukatuka matū, te whakamahine, me ētahi atu pūnaha whakahaere wai, ka tīmata te pakaru o te hiri me te waikura i mua noa atu i te putanga mai o te turuturu e kitea ana. He mea hanga te hiri ā-ringa ātete waikura hei pupuri i te pumau o ngā mata hiri, ngā wāhanga whakarewa, me ngā elastomers ina pāngia e ngā waikawa, ngā whakarewa, ngā hauwaiwai, me ngā mea whakakoi. Ko tōna uara he nui ake i te roa o te ora ratonga: ka āwhina i te whakahaere i ngā tukunga rere, ka tiaki i te pono o ngā taputapu, ka whakaiti i te tūponotanga o ngā kati kore i whakamaheretia, i ngā aituā haumaru rānei. Ka whakamāramahia e te matapakinga i raro nei te whakawhāititanga o te turuturu o ēnei hiri, he aha ngā rauemi e whai hua ai i roto i ngā taiao uaua, me te take he mea nui mō te tutuki i ngā whakaritenga me te whai huatanga o te mahi.

He aha te Hiranga o ngā Hiri Ātete-Waikura

I roto i ngā taiao tukatuka matū me te warowaihā kaha, ko te pumau o tētahi pūnaha taputapu hurihuri e tino whakawhirinaki ana ki ōna tikanga hiri. He ātete-waikurahiri mīhinikua hangaia kia tū atu i ngā pānga pirau o ngā wai tukanga kaha, hei ārai matua ki ngā tukunga rere me te ngaronga wai kino. He rerekē ki ngā hiri paerewa, ka tere te pirau ina pāngia e ngā waikawa, ngā kawa, ngā parapara rānei, ka mau tonu ngā momo ātete-waikura i te āhua o te mata me te hanganga tika i raro i te whakaekenga matū tino kino.

Ko te whakahau a te ahumahi mō ēnei hiri motuhake e akiakihia ana e ngā ture taiao pakari me te utu nui o te wā whakatā kore i whakaritea. Hei tauira, ko ngā whare kei raro i te Tikanga EPA 21 me pupuri tonu i ngā paepae tukunga rere i raro iho i te 500 wāhanga ia miriona (ppm), he inenga e kore e taea te whakatutuki mena kei te memeha haere, kei te pakaru rānei ngā wāhanga hiri. Mā te whakamahi i te whakarewa matatau me ngā elastomers mahi teitei, ka whakarite ngā hiri ātete-waikura kia tutuki ngā paerewa ture i ngā whare tukatuka me te tiaki i ngā kaimahi mai i te pānga o ngā matū pupuhi, paitini rānei.

Te whakaiti i te turuturu e ngā hiri ātete-waikura

Ko te kaupapa matua o te hiri miihini e whakawhirinaki ana ki te pupuri i tētahi kiriata wai moroiti i waenganui i ngā mata hiri e rua kua tino orohia. Hei ārai i te turuturu, me noho papatahi ēnei mata ki roto i te 2 ki te 3 ngā whitiki mārama helium (tata ki te 0.000023 ki te 0.000035 inihi). Ina kore e hototahi te hiri ki te wai tukanga, ka whakarerekētia tēnei āhua whenua nui e te waikura ōrite, e te waikura ā-rohe rānei. Ka hangaia e te waikura poka he awa moroiti puta noa i ngā mata hiri, i te mea ka whakaekea e te waikura kapiti ngā awaawa mowhiti-O, ka taea ai e te wai tukanga te karo i ngā huānga hiri hihiri tuarua.

Mā ngā hiri ā-ringa ātete-waikura ka whakaitihia ēnei momo pakaru mā te whakamahi i ngā rauemi kore e tauhohe ki te reo e papua ana. Mā te tiaki i te mutunga tika o ngā mata tuatahi me te pupuri i ngā ātete ā-ahu o ngā taputapu whakarewa, ka mau tonu te matotoru o te kiriata wai pai i ēnei hiri. Mā tēnei ka ārai i te whakawhiti mai i te whakahinuhinu rohe ki te waku maroke, ā, ka whakakorea te whakapōrearea wera me te pupuhi e puta mai ana i mua i te turuturu kino.

Ko ēhea taiao mahi e hiahia ana kia ātete ki te waikura

Ko te hiahia mō te ātete matū teitei e horapa ana i roto i ngā ahumahi taumaha maha, inā koa kei reira ngā taumata pH tino nui, ngā kukū halide teitei rānei. I roto i te rāngai chlor-alkali, he maha ngā wā ka whakahaerehia e ngā taputapu te hau chlorine maku, te sodium hypochlorite, me te sodium hydroxide kukū i ngā taumata pH neke atu i te 13. Ko ngā maitai kowiri tira raupapa 300 paerewa ka pāngia e te pakaru waikura tere o te ahotea chloride i raro i ēnei āhuatanga, ka hiahiatia he koranu tauhou.

Waihoki,ngā papa hinu me te hau o wahoKa tukatuka auauhia te hinu mata kawa kei roto ngā taumata tiketike o te hauwai whanariki (H2S) me te onepu whakakoi. Ka whakawhirinaki ngā mira penupenu me te pepa ki ngā wāhanga whakamakuku wai pango me te hauhā hauota, he taiao e mōhiotia ana mō te whakaputa waikura ōrite. I roto i ēnei tono, ka tangohia e te matū wai ngā paparanga waikura kore mahi o ngā konganuku paerewa, ka waiho ngā hiri ātete-waikura hangarau hei whakaritenga whakahaere tino tika hei pupuri i te Wā Waenga i waenganui i ngā Rahunga (MTBF) e whakaaetia ana mō te whakaputa tonu.

He aha te Whakamārama i te Hiri Ātete-Waikura

Ko te hiri ā-ringa e ātete ana ki te waikura ka tautuhia e te hototahi matū mahi tahi o ōna rōpū wāhanga matua e toru: ko ngā mata hurihuri tuatahi me ngā mata tūmau, ko ngā wāhanga hanganga whakarewa, me ngā hiri elastomeric tuarua. Ko te pakari o te hiri ā-ringa ko tōna wāhanga tino ngoikore; ka kore he hua o te mata silicon carbide tino ātete mēnā ka pupuhi te mowhiti-O tautoko, ka memeha rānei te pereti repe whakarewa.

Ko ēhea rauemi mata, whakarewa, me te elastomer e pā ana ki te ātete ki te waikura

Ko te whiriwhiringa o ngā rauemi e whakatau ana i te roanga mahi o te hiri i roto i ngā pāpāho kaha. Mō ngā mata tuatahi, ko te Sintered Alpha Silicon Carbide (SiC) te paerewa ahumahi mō te ātete matū whānui, e pupuri ana i te pumau puta noa i te awhe pH mai i te 0 ki te 14. I roto i ngā tono tino kaha te wera i reira ka pāngia pea te SiC e te whakaekenga rohe witi, ka whakamahia ngā tohu motuhake, te tungsten carbide (WC) rānei me te here nickel—kaua ki te here cobalt e ngawari ana ki te waikura.

Ko ngā wāhanga whakarewa, tae atu ki te repe, te ringaringa, me ngā puna, e hiahiatia ana he whakahoutanga mai i te paerewa 316SS. Ko ngā koranu nikara teitei pērā i te Hastelloy C-276, te titanium, te Alloy 20 rānei, ka whakamahia hei ārai i te pakaru o te waikura me te ahotea i roto i ngā taiao whai rawa i te hauhāora, i te waikawa whanariki rānei. Mō te hiri tuarua, me ātete ngā elastomers ki te pupuhi matū me te extrusion. Ka whakaratohia e ngā Perfluoroelastomers (FFKM) te hototahi matū tata ki te ao, ka pai ake i ngā kōwhiringa paerewa FKM, EPDM rānei i roto i ngā tono whakarewa uaua.

Te pānga o te matū, te pāmahana, te pēhanga, me te tere o te rakau ki te mahi

Ehara te ātete matū i te āhuatanga pumau; he tino whakawhirinaki ki ngā taurangi mahi. E ai ki te whārite Arrhenius, ko te tere o ngā tauhohenga matū—tae atu ki te waikura—ka tata ki te rua te pikinga mō ia pikinga pāmahana 10°C (18°F). Ko te konganuku, ko te elastomer rānei e whakaatu ana i te ātete pai ki te otinga waikawa whanariki 10% i te pāmahana taiao, ka tere pea te pirau i te 90°C. Nō reira, me arotake tika ngā tawhā wera me te matū wai.

Ka nui ake te tūponotanga o te waikura mā te pēhanga me te tere o te rakau mā te whakaputa i te ahotea miihini me te whakaputa wera ā-rohe. Ko ngā tono pēhanga teitei, e neke atu ana i te 1,200 psig i roto i ngā papu taumaha, ka tere ake te waikura o te kapiti mā te akiaki i ngā wai kaha ki roto i ngā kapiti moroiti. Ka nui ake te tere kutikuti o te kiriata wai i ngā tere rakau teitei, ka piki ake te pāmahana o te mata, ka tere ake hoki te whakaeke matū ki ngā mata hiri ā-rohe, he āhuatanga e mōhiotia ana ko te whakahekenga matū-wera.

Me pēhea te wehewehe i te korenga o te waikura mai i te kakahu me te rere maroke

He mea nui te tātari tika i te pakaru hei ārai i ngā pakarutanga maha. Ko te wehewehe i te waikura mai i te kakahu miihini, te rere maroke rānei me tirotiro i te āhua o te kino. Ko te waikura ka puta i te nuinga o te wā hei poka, hei angiangi whānui o ngā wāhanga whakarewa, hei tango matū rānei. Hei tauira, ina tangohia te here cobalt i roto i ngā mata tungsten carbide, ka ahua mangu te mata, ā, ka ahua taratara ki te pā, ka hua ake he mata pore e kore e taea te pupuri i te kiriata wai.

He rerekē, ka puta he kino wera motuhake i te rere maroke, pērā i te tirotiro wera (ngā kapiti radial iti i te mata o te hiri) me te pupuhi nui i runga i ngā mata o te karāhe waro. Ka puta te kakahu whakakoi hei keri hohonu, porowhita i te taha o ngā mata e hono ana. Mena ka pakaru te mowhiti-O nā te kore hototahi matū, ka pupuhi, ka pakarukaru, ka puta rānei, engari ko te whakahekenga wera ka waiho te mowhiti-O kia mārō me te tapahi tapawhā. Mā te tautuhi i ēnei tohu motuhake ka whakarite kia aro atu ngā whakahoutanga hiri i muri mai ki te aratau pakaru tika.

Me pēhea te whakataurite i ngā kōwhiringa hiri mīhini ātete-waikura

Ko te kimi i te hiri tika me arotake i ngā rauemi hanga me te whirihoranga ā-pūkaha. Ko te hoahoa ā-tinana o te hiri e tohu ana i te āhua o te pānga o ngā wāhanga o roto ki te wai tukanga, ko te tikanga ka taea e te kōwhiringa whirihoranga rautaki te whakaiti i te hiahia mō ngā koranu tino utu nui.

Ko ēhea ngā paearu whakatairite me whakamahi e ngā kaihoko

Me arotake e ngā kaihoko me ngā kaihangarau pono ngā hiri ā-ringa ātete-waikura mā te whakamahi i tētahi matapae o ngā paearu hangarau me ngā paearu arumoni. Ko te ine matua ko te Utu Huringa Ora (LCC), e whakataurite ana i te whakapaunga whakapaipai tuatahi ki te Wā Tohatoha i waenganui i ngā Rahunga (MTBF) e matapaetia ana. E toru pea te utu o te hiri utu nui i te tīmatanga engari ka taea te whakaroa i te MTBF mai i te 6 marama ki te neke atu i te 36 marama, ka tino whakaiti i ngā utu mō te wā roa.

Ko tētahi atu paearu nui ko te tutuki i ngā paerewa ahumahi, pērā i te API 682 (mō ngā ahumahi hinu, hau, me te matū). Me tohu e ngā kaihoko te Kāwai tika (1, 2, 3 rānei) i runga i te rahi me te pāmahana o te papu, me te whiriwhiri i te whakaritenga hiri tika. Hei tāpiri, mā te aromatawai i ngā āheinga o te kaiwhakarato—pērā i tō rātou kaha ki te whakarato tiwhikete whai rauemi EN 10204 3.1—ka whakarite kia tutuki i ngā koranu ātete-waikura kua tohua ngā whakaritenga whakarewa e tika ana mō te tono.

Ngā rerekētanga o ngā hiri kotahi, takirua, kātereti, me ngā hiri wehewehe

Ko te kōwhiringa i waenga i te whirihoranga takitahi, takirua, kātereti, me te wehewehe ka tino whakarerekē i te taunekeneke a te hiri ki te taiao waikura. Ka whakawhirinaki ngā hiri takitahi ki te wai tukanga kua papuhia mō te whakahinuhinu; nō reira, me tino hototahi ngā wāhanga katoa ki ngā pāpāho. Ahakoa he iti ake ngā utu tīmatanga o ngā hiri takitahi, kāore e tukuna he aukati tuarua mēnā ka rahua te kiriata wai tuatahi.

Ngā hiri takirua (takirua)Whakamahia he wai ārai pēhanga, kāore rānei i te pēhanga i waenganui i ngā huinga mata hiri e rua. Mā te pupuri i te wai ārai i te pēhanga teitei ake i te pāpāho tukatuka, ka whakahinuhinuhia ngā mata hiri o roto e te wai ārai ma, kore-waikura, kaua ki te matū tukatuka kaha. Mā tēnei whirihoranga ka wehea ngā puna ngawari me te whakarewa o roto mai i te taiao waikura, ka ārai pai i te whakaekenga matū me te whakarite kia kore he tukunga morearea.

Ko ngā hiri kātere he waeine kua oti te huihui, kei roto ko te hiri, te repe, me te ringaringa. Ka whakakorea e rātou te hiahia mō ngā inenga tāutanga tika, ka whakaitihia te hapa tangata i te wā tiaki - he mea nui tēnei ina whakahaere i ngā matū morearea. Mā ngā hiri wehewehe ka taea te tāuta me te kore e wetewete i te anga papu, i te motuka rānei, he tino painga tēnei mō ngā taputapu nui. Heoi, ko ngā hiri wehewehe he iti ake ngā herenga pēhanga (he maha ngā wā ka herea ki te 150 psig) ā, kāore i te pai mō ngā wai waikura tino paitini nā ngā raina wehewehe kei roto i ō rātou wāhanga elastomeric.

Me pēhea te whiriwhiri me te tiaki i te hiri tika

Ahakoa te hiri ā-ringa tino matatau rawa atu, ka pakaru wawe tonu mēnā ka hē te whakamahi, ka pāngia rānei e ngā āhuatanga mahi kino i tua atu i ōna rohe hoahoa. Me kohikohi raraunga pakari i te wā hoko, ā, me whai pūmau ki ngā tikanga whakahaere taiao i te wā e whakamahia ana, kia angitu ai te whakatinanatanga.

Ko ēhea ngā tīma hangarau raraunga tono me ngā tīma hokohoko e hiahiatia ana

Hei tohu i tētahi hiri tino pai, me kohikohi e ngā tīma hangarau me ngā tīma hoko ngā raraunga tono whānui. Me taipitopito katoa te hanganga wai, tae atu ki ngā huānga iti me ngā āhuatanga tauwhiro, nā te mea ka taea e te 1% noa iho o te kukū o te waikawa hauwaiwai, o ngā pūhaumāota rānei te whakarerekē nui i te hototahitanga o ngā rauemi. Me tuhi te taumaha motuhake, te pēhanga kohu, me te matotoru i ngā pāmahana whakahaere (ka nui ake i te 400°F / 204°C i roto i te tukatuka matū).

He mea nui anō hoki ngā raraunga taputapu mīhini. Me whakarato e ngā tīma te tere o te pou papu (RPM), ngā rahi o te pouaka whakakī, me ngā ātete āhua o ngā taputapu. Kia tika ai te mahi a te hiri mahi-teitei, kaua te rere o te pou papu e neke ake i te 0.002 inihi te Pānui Tohu Katoa (TIR), ā, me pupuri te mutunga o te pou i raro i te 0.005 inihi. Ki te kore e whakaratohia he raraunga taputapu tika, ka nui rawa te wiri o ngā hoahoa hiri, ka kore e whai hua ngā rauemi ātete-waikura.

Te pānga o te whakamātautau, ngā paerewa, me te tautoko a te kaiwhakarato ki te kōwhiringa

Tautoko a te kaiwhakaratoMā te piri ki ngā paerewa whakamātautau pakari ka whakamanahia te pono o te hiri i whiriwhiria. Ka whakamātauhia ā-wai ā-pūmau e ngā kaihanga rongonui ā rātou hiri, i te nuinga o te wā i te 1.5 ngā wā o te pēhanga hoahoa mōrahi, kia mau tonu ai te pono o ngā wāhanga whakarewa me ngā awaawa O-ring i raro i te taumahatanga. Ka whakatauirahia e te whakamātautau tohu e ai ki ngā aratohu API 682 ngā āhuatanga whakahaere hihiri, e whakarato ana i te taunakitanga ā-wheako o ngā tere turuturu me te pumau o te wera o te hiri.

Hei tāpiri atu ki tēnā, he mea nui te tautoko hangarau a te kaiwhakarato mō te whakatere i ngā taupatupatu rauemi uaua. E kore te kaiwhakarato mātau e hoko noa i tētahi koranu utu nui engari ka tātarihia te pūnaha hei whakatau mēnā he pai ake te tiaki me te roa o te ora o tētahi huringa hoahoa—pērā i te neke mai i tētahi hiri kotahi ki tētahi hiri takirua me tētahi wai ārai motuhake—i te whakawhirinaki noa ki ngā mahi whakarewa tauhou.

Ko ēhea ngā mahi tāutanga, horoi, me te aroturuki e whakaroa ana i te roa o te hiri

Ka roa ake te roa o te mahi a te hiri ātete-waikura mā te whakamahi i ngā Mahere Paipa API e tika ana hei whakahaere i te taiao moroiti o te hiri. Mō ngā hiri takitahi e whakahaere ana i ngā wai waikura me ngā totoka whakatārewatia, ka whakaratohia e te Mahere API 32 he rere tonu o te wai o waho ma, hototahi, e pana ana i ngā pāpāho kaha kia matara atu i ngā mata me ngā puna hiri.

Mō ngā hiri takirua e whakahaere ana i ngā pāpāho tino paitini, waikura rānei, ka whakamahia he Mahere API 53A, 53B, 53C rānei hei whakarato i te wai ārai pēhanga.

Me pēhea te whakamārama i te haumitanga ki tētahi hiri mīhini ātete-waikura

Ngā Whakaaro Matua

• Ko ngā whakatau tino nui me te take mō te hiri ā-ringa ātete waikura
• Ngā whakaritenga, ngā whakaritenga, me ngā arowhai mōrearea e tika ana kia whakamanahia i mua i tō whakaae
• Ngā mahi whai muri me ngā whakatūpato ka taea e ngā kaipānui te tono tonu

Ngā Pātai Auau

He aha te mea e ātete ai te hiri miihini ki te waikura?

Ka whakamahia e ia ngā rauemi mata e hototahi ana ki ngā matū, ngā wāhanga whakarewa, me ngā elastomers. Ko ngā whakahoutanga noa ko ngā mata SiC, ngā taputapu Hastelloy, titanium rānei, me te FFKM, ngā elastomers rānei e tika ana kia rite ki te wai e papuhia ana.

Āhea ahau e hiahia ai ki tētahi hiri ā-ringa ātete ki te waikura?

Whakamahia tētahi mō ngā waikawa, ngā matū whakakā, ngā pūhaumāota, ngā wai kawa, ngā whakarewa, ngā paru whakakoi rānei. He mea nui rawa atu tēnei i roto i ngā papu matū, hinu me te hau, keri maina, penupenu me te pepa, moana, me te wai.

Me pēhea te whakaiti i te turuturu o te hiri e te ātete ki te waikura?

Ka ārai i te pakaru, te whakaekenga o te kapiti, me te kino o te elastomer e whakararuraru ana i ngā mata o te hiri. Ka āwhina tēnei ki te pupuri i te kiriata wai angiangi, te whakaiti i te hanga wera, me te pupuri i te turuturu me ngā tukunga kia kore e pakaru.

Ko ēhea ngā rauemi e whiriwhiria whānuitia ana mō te mahi matū kaha?

He whānuitia te whakamahinga o te SiC mō ngā mata hiri. Tērā pea me whakamahi te Hastelloy C-276, te Alloy 20, te titanium rānei mō ngā wāhanga whakarewa, engari ko te FFKM, te FKM, te EPDM rānei ka whiriwhiria i runga i te pānga matū me te pāmahana.

Ka taea e Victor Seals te tuku whakakapinga ātete waikura mō ngā hiri papu OEM?

Āe. Ka whakaratohia e Victor Seals ngā hiri miihini hototahi-OEM me ngā hiri whakakapinga mō ngā waitohu pēnei i a IMO, Alfa Laval, Grundfos, APV, Flygt, Fristam, Lowara, me Allweiler mō ngā hiahia tiaki me te whakatikatika.