Hiri Konukōre, Hiri Elastomer rānei: Me pēhea te whakatau

Kupu Whakataki

Ko te whiriwhiri i waenga i te hiri pere whakarewa me te hiri pere elastomer he nui atu ngā pānga i te taunga, i te utu rānei: ka whakatau i te pai o te whakahaere a te papu i te wera, te whakaeke matū, te nekehanga o te pou, me ngā wā mahi roa. E whakamārama ana tēnei tuhinga i ngā rerekētanga mahi i waenga i ngā hoahoa e rua, me te arotahi ki te wāhi e puta ai ngā painga mārama mai i te hiri miihini pere whakarewa mā te tango i ngā wāhi rahunga e pā ana ki te elastomer. Ka ako koe ko ēhea ngā āhuatanga whakahaere e pai ana ki ia kōwhiringa, ko ēhea ngā tauwhitinga mahi hei tumanako, me pēhea te aromatawai i te pono, ngā tono tiaki, me te utu huringa ora i mua i te whiriwhiri.

Me pēhea te aromatawai i te hiri mīhini o te Bellows whakarewa

Ko te whiriwhiri i te hangarau hiri tika he whakatau hangarau nui e whakatau ana i te pono, te haumaru, me ngā wā tiaki o ngā taputapu hurihuri ahumahi. Kei waenganui o tēnei whakatau ko te whiriwhiri i waenga i ngā hiri e hangai ana ki te elastomer tuku iho me tehiri miihini pupuhi whakarewaAhakoa he pai te mahi a ngā elastomers i roto i ngā tono paerewa, e hiahia ana ngā taiao ahumahi uaua ki tētahi otinga pakari ake.

Ka whakakapia te huānga hiri tuarua hihiri e te hiri whakarewa—he mowhiti-O elastomer te tikanga—ki tētahi matua whakarewa tonu, ngāwari. Mā tēnei panonitanga taketake o te hoahoa ka whakakorea ngā ngoikoretanga e pā ana ki te pakaru o te elastomer, ka tukuna he painga miihini motuhake i roto i ngā āhuatanga whakahaere wai motuhake.

He aha te pānga o te kōwhiringa ki te pono me te utu o te huringa ora

Ko te whanaungatanga i waenganui ikōwhiringa hiri miihiniā, kāore e taea te whakanui rawa i te pono o te tipu mō te wā roa. I roto i ngā taiao tukanga uaua, tata ki te 70% o te wā mutu katoa o te papu ka pāngia e ngā pakaru o te hiri miihini. Mā te whakapai ake ki te hoahoa pupuhi whakarewa i roto i ngā tono me ngā pāpāho kaha ka taea te neke nui i te Wā Tohatoha i waenganui i ngā Rahunga (MTBF).

Hei tauira, ko ngā papu pūwero e mahi ana i roto i ngā mahi whakapai wera-teitei ka kite i te hiri pana MTBF e noho tonu ana i te 12 ki te 18 marama nā te whakapakeketanga o te elastomer. Mā te neke ki tētahi hiri miihini o te pere whakarewa kua tohua tika, ka whakaroahia e ngā whare te MTBF ki te neke atu i te 36 ki te 60 marama. Ahakoa he teitei ake te whakapaunga whakapaipai tuatahi mō tētahi waeine pere whakarewa, ka heke tere te utu huringa ora (LCC) ina whakaarohia te whakakorenga o ngā motumotu kore i whakamaheretia, te whakaiti i te mahi tiaki, me te kore e hiahiatia he whakakapinga ringaringa pou.

Te āhua o te whiriwhiri hiri e ngā āhuatanga whakahaere

Ko ngā tawhā whakahaere—ina koa ko te pāmahana, te kaha o te matū, me te matotoru o te wai—koia ngā mea matua e akiaki ana i te kōwhiringa hiri. Ko ngā fluoroelastomers paerewa (FKM) me ngā perfluoroelastomers (FFKM) ka whakaatu i te whakahekenga wera, i te whakaputanga rānei ina neke ake ngā pāmahana whakahaere tonu i te 200°C ki te 260°C (392°F ki te 500°F).

I tua atu, ko ngā pupuhi whakarewa i hangaia mai i ngā koranu mahi-teitei ka taea te tu atu ki ngā pāmahana mahi tonu e neke atu ana i te 400°C (750°F) me te kore e ngaro te hanganga o te hanganga, te kaha rānei o te puna. Hei tāpiri, ko ngā āhuatanga mahi i tērā taha e kī ana i ngā kōwhiringa ōrite; ko ngā tono cryogenic e mahi ana ki raro ki te -75°C (-103°F) ka meinga ngā elastomers kia pakarukaru, kia pakarukaru hoki, ka waiho ko ngā pupuhi whakarewa te kōwhiringa hangarau anake e tika ana mō te uta mata pumau.

Ngā Pīrere Whakarewa me ngā Hiri Ā-ringa Pana

Hei whakatakoto i tētahi whakatakotoranga whai whakaaro, me mārama ngā kaihangarau ki ngā rerekētanga ā-pūkaha i waenga i ngā hiri pana me ngā hiri pupuhi whakarewa kore-pana. Ka whakamahia e te hiri pana he elastomer tuarua hihiri me neke, me "pana" rānei, i te taha o te pou papu, i te ringaringa rānei hei utu mō te pakaru o te mata o te hiri me te whānui o te wera. Ko te hiri pupuhi whakarewa he hoahoa kore-pana.

I roto i te whirihoranga kore-pana, ka hiritia te waeine pupuhi ki te kakau, ki te ringaringa rānei, mā te mowhiti-O pumau, mā te poro karāhe rānei. Ko ngā nekehanga tuaka katoa e hiahiatia ana hei pupuri i te pa o te mata ka mimitihia e te piko o ngā piko whakarewa, ka kore rawa e hiahiatia he elastomer kia paheke hihiri.

Te āhua o te waihanga a ia hoahoa i te ngāwari me te taumaha o te mata

Ka whakawhirinaki ngā hoahoa pana ki ngā puna koiri kotahi, maha rānei hei whakarato i te kaha kati ā-mīhini e tika ana ki ngā mata hiri. I te nekehanga o te mowhiti-O hihiri hei pupuri i tēnei kawenga, ka taea e ngā matūriki te kohikohi ki runga i te rakau, ka whakairihia te elastomer. Ka hua ake tēnei whakairinga i te wehenga o te mata me te turuturu tonu. Hei tāpiri, ko ngā nekehanga moroiti tonu o te mowhiti-O hihiri ki te mata whakarewa ka hua ake he wiri nui ki te rakau.

Mā te hiri miihini o te pupuhi whakarewa ka whakatauhia ēnei raruraru mā te tuku i te kawenga mata 360-tohu ōrite tika mā roto i ngā piko whakarewa. Nā te mea kāore he reti hihiri o te elastomer tuarua, ka whakakorea katoatia te wiri o te pou. Mā te tohatoha ōrite o te pēhanga puna ka whakaitihia hoki te hē o te mata ā-rohe, ka mau tonu he āputa hiri papatahi i raro i ngā pēhanga rerekē.

Ko ēhea ngā rohe whakahaere e tino hira ana

He mea nui te mārama ki ngā rohe mahi tuturu o ngā hoahoa e rua hei ārai i te pakaru kino o te papu. He mea nui te matotoru me te kukū o ngā matūriki. He tino ngāwari te aukati i ngā puna hiri pana ina neke atu te matotoru o te wai i te 1,500 cSt, ina kohikohi rānei ngā totoka i whakatārewatia ki roto i ngā pute puna.

Nā te mea kāore he pute puna piripono o ngā pupuhi whakarewa, ka taea e rātou te whakahaere i ngā matotoru tae atu ki te 3,000 cSt i mua i te hiahia ki ngā urutaunga motuhake. Ina whirihorahia hei pupuhi hurihuri, ka maka kaha te kaha centrifugal i ngā matūriki mai i ngā piko, ka puta he pānga horoi-ake e kore e taea e ngā hiri pana te tārua.

Ngā Paearu Matua mō te Whakataurite i te Kekeno

Ko te whakataurite i ngā momo hiri me arotake pūnaha i ngā paepae mahi, ngā pānga ōhanga, me ngā paerewa tutuki i te taiao. Me paunatia e ngā tīma hangarau ngā kaha miihini o nāianei ki te tapuwae mahi roa o te taputapu.

Ahakoa he pai ngā pupuhi whakarewa i roto i ngā āhuatanga uaua, me whakatika te kōwhiringa mā te whakataurite i ngā paearu, me te whakarite kia rite te hangarau ki ngā whakaritenga tukanga mengā rautaki tiaki tipu.

Me pēhea te whakatairite i ngā āhuatanga mahi

Ko te whakataurite mahi e whakawhirinaki nui ana ki ngā rohe pēhanga me ngā tere o te toki. He tino pūkenga ngā hiri pana, inā koa ko ērā he hoahoa taurite, ki te whakahaere i ngā pēhanga tino nui, he maha ngā wā ka whakatauhia mō ngā taiao neke atu i te 100 pae (1,450 psi). Ahakoa he tino ngāwari ngā pupuhi whakarewa, he iti noa iho ngā herenga hanganga e pā ana ki te pēhanga.

Ko ngā pupuhi whakarewa paerewa he mea here ki te pēhanga tata ki te 20 pae (290 psi). Ka taea e ngā pupuhi whakarewa taha-whakarewa teitei te whakawhānui i tēnei rohe ki te 69 pae (1,000 psi), engari he nui ake te aro ki te pēhanga i ngā hiri pana taumaha. Ina whakatauritea ngā tere o te pou, ka taea e ngā pupuhi whakarewa kounga teitei te mahi pai i ngā tere mata tae atu ki te 25 m/s, ka tino whakataetae ki ngā rahinga papu API paerewa.

He aha ngā āhuatanga utu me te huringa ora hei arotake

Me huri te tātari utu mai i te tirohanga CapEx-anake ki te tauira utu katoa o te mana pupuri (TCO) whānui. Ko te utu hoko tuatahi mō te hiri miihini whakarewa taha-whakapiripiri he 2.0x ki te 3.0x teitei ake i te hiri pana elastomer paerewa nā te uaua o te mahi whakarewa me te whakapiringa tika e hiahiatia ana.

Heoi, ka tere te whakakore i tēnei utu tuatahi nā ngā āhuatanga o te huringa ora. Mā te whakakore i te hiahia ki te whakakapi i ngā toki papu kua whakawhāitihia, i ngā ringaringa tiaki rānei—e $2,000 pea te utu mō ia whakahoutanga i runga i ngā papu API nui—me te whakaroa i te MTBF mā ētahi tau, ka kitea te hokinga mai o te haumitanga (ROI) mō te whakapai ake i te pupuhi whakarewa i roto i ngā marama 12 ki te 18 tuatahi o te mahi.

Ngā wāhi e pā ai ngā whakaritenga hanganga ture ki te kōwhiringa

He mea nui te mahi a ngā ture taiao i roto i te whiriwhiri i ngā kekeno, inā koa i roto i tengā rāngai matū me te hinuMe tutuki ngā paerewa tino pakari mō ngā tukunga rerenga, pērā i te Tikanga EPA 21, e whakahau ana kia noho tonu te turuturu o ngā taputapu i raro i te 500 wāhanga ia miriona (ppm) o ngā matū waro mimiti (VOC).

He tino pai ngā hiri o ngā pupuhi whakarewa i roto i ngā rautaki ture nā te mea ka whakakorehia te mowhiti-O hihiri, he wāhi rahunga noa mō ngā tukunga rere. I roto i ngā tono whare whakapai e whakahaerehia ana e ngā paerewa API 682, kua tohua mārama ngā hiri Momo B (pupu whakarewa) mō ngā ratonga pāmahana teitei Kāwai 2 me te Kāwai 3, kia tutuki ai ngā ture taiao me ngā paerewa haumaru o te ao.

Aratohu Kōwhiringa me te Rauemi Whaihua

Ko te whakawhiti mai i te kōwhiringa ariā ki te rapunga mahi-ā-ringa me whai huarahi hanganga. Ehara te hoko i te hiri miihini o te pupuhi whakarewa i te tauhokohoko taonga; me whai whakawhitiwhiti kōrero hangarau tika i waenga i te tīma pono o te tipu me tekaihanga hiri.

Mā te tukanga tātari me te tohu matatau ka taurangi te mahi a te hiri kua tukuna ki tana MTBF kua tohua, ā, ka ārai i ngā tono hē utu nui.

He aha te tukanga tātari me whakamahi

Me tīmata te tukanga tātari me te tātaritanga whānui o te wai me te pūnaha. Me tuhi e ngā kaihangarau te hanganga matū tika, tae atu ki ngā huānga iti, hei manatoko i te hototahitanga o te whakarewa. Mā te papu i tētahi wai me te iti o te hauota ka puta te pakaru waikura ahotea i roto i ngā pupuhi maitai kore waikura raupapa 300 paerewa.

Muri iho, me tautuhi te kōpaki tono. Kei roto i tēnei ko te tuhi i ngā pāmahana mahi iti rawa me te mōrahi, ngā pēhanga tonu me ngā pēhanga taupua, me te ōrau o ngā totoka iri. Kia oti noa te whakatū i tēnei kōpaki ka neke te tirotiro ki te whiriwhiri i te momo hanganga o te pupuhi—te whiriwhiri i waenga i ngā pupuhi kua hangaia mō ngā tono mahi iti ake, i ngā pupuhi kua whakapirihia ki te taha rānei mō te mahi tino pai.

Ko ēhea ngā taipitopito whakatakotoranga ka ngaro pinepine

He maha ngā taipitopito whakatakotoranga nui e warewarehia ana i te wā e hokona ana, ka hua ake te pakaru wawe o te ngenge. Ko tētahi o aua taipitopito ko te matotoru o te pereti pupuhi. Ko te matotoru o ngā pereti taha-whakarewa paerewa kei waenga i te 0.10 mm ki te 0.15 mm. Mā te tohu i tētahi pereti matotoru ake (hei tauira, 0.20 mm) ka piki ake te whakatauranga pēhanga engari ka tino whakaiti i te ngāwari o te tuaka, me te tatau anō i ngā kaha uta mata.

Ko te whiriwhiri i te koranu tētahi atu āhuatanga e ngaro pinepine ana. Mā te kore whakamahi i te AM350 ka taea te penapena i ngā utu o mua, engari me whakahou ake ki te Koranu C-276, ki te Inconel 718 rānei ina pāngia e ngā waikura kino, e neke atu rānei i te 315°C te pāmahana. Ko te kore e tohu i te mahi whakarewa tika mō te matū wai motuhake tētahi o ngā tino take o te pakaru wawe o te pupuhi.

Me pēhea te whakarite i ngā kaiwhakarato me ngā kaihoko

Ko te whakarite i tētahi kaihoko mō ngā pupuhi whakarewa me tirotirohia ōna pūkenga hanga me te kounga. Me tono ngā kaihoko kia whiwhi i te tiwhikete ISO 9001 me te tono tuhinga mō ngā whakamātautau whakarewa ā-roto. Nā te mea he mano tini ngā whakapiringa iti e uru ana ki te tukanga whakapiri taha, me mahi e te kaihoko he whakamātautau turuturu pakari.

Me whakamahi ngā kaihoko e whakaaetia ana i te whakamātautau turuturu o te ine papatipu helium, kia oati ai he iti iho i te 1×10^-7 atm cc/sec te tere turuturu puta noa i te huihuinga pupuhi. Hei tāpiri, me tumanako ngā kaihoko ki ngā rerekētanga o te mekameka tuku; ahakoa he maha ngā wā he taonga arumoni kua oti te hoko (COTS) ngā hiri pana, ko ngā pupuhi kua whakarewahia ki te taha ritenga me whai i te Rahinga Ota Iti rawa (MOQ) me te kawe i ngā wā arahi o te 6 ki te 8 wiki. Me noho ko ngā tiwhikete rauemi ka taea te whai (pēnei i te EN 10204 3.1) hei whakaritenga kore e taea te whiriwhiri hei manatoko i te pono o te koranu.

Āhea te wā e pai ai te whakamahi i ngā hiri o te pere whakarewa

Ko te whakatau i te taunga tino tika mō te hiri miihini o te pupuhi whakarewa me whakataurite i ngā kaha ahurei o te hangarau ki ngā momo rahunga motuhake e pā ana ki te tipu. Ina whakamahia tika, ka mahi ēnei hiri hei otinga tino tika mō ngā take pumau o te pono o te papu.

Ahakoa ehara i te mea hei whakakapi mō ngā hiri pana katoa, ko tā rātou whakamahinga i roto i ngā taiao kua tohua, kua tino ahotea, ka hua ake he pumau mahi tino pai.

Ko ēhea ngā tono e pai ana mō ngā pupuhi whakarewa

Motuhakengā tono ahumahiKo te hoahoa o ngā pupuhi whakarewa he mea e pai ana ki te tukatuka hauwaiwai pāmahana teitei, pērā i te uku wera, te hinu hau korehau taumaha rānei (HVGO), me whai hiri e kore e kōkō, e herea rānei. Ko ngā papu wai whakawhiti wera (hinu wera) e mahi ana i runga ake i te 200°C e whakawhirinaki ana ki ngā pupuhi whakarewa hei ārai i te pakaru kino e pā ana ki te rewa o te elastomer.

Hei tāpiritanga, ko ngā tono e pā ana ki ngā totoka whakatārewatia whakakoi tae atu ki te 5% te taumaha he mea tino pai. I roto i ēnei taiao, ka tere te whakangaro i ngā mowhiti-O hihiri o ngā hiri pana e te koiri matūriki, ā, ka kī tonu ō rātou puna koiri i ngā totoka. Ka panaia ēnei totoka e te hiri pupuhi whakarewa hurihuri, ka pupuri i te kawenga mata pai, ā, ka ārai i te hiri kei iri.

He aha ngā aratohu hei āwhina i ngā tīma ki te whiriwhiri me te māia

Hei whiriwhiri māia, me whakatinana e ngā tīma hangarau he mahere whakatau paerewa. Mena he nui ake te pāmahana o te tono i te 200°C, he iti iho i te -40°C te mahi, he kaha te whakamahi i ngā whakarewa e pupuhi ana i ngā elastomer, he mamae rānei i te wiri o te poro, ko te hiri miihini o te pupuhi whakarewa te whakatakotoranga taunoa.

Me whakatairanga ngā tīma i ngā inenga pono mō te wā roa, kaua i ngā tahua hoko. Mā te whakarite i ngā whirihoranga Momo B API 682 mō ngā rawa o te papaanga e tika ana ka māmā ake te pupuri taonga, ā, ka whakarite kia hangaia kētia te hangarau hiri kia tū atu ki ngā ahotea wera me te miihini ina puta he āhuatanga uaua, ā, hei tiaki i te hanga me ngā kaimahi o te whare hanga.

Ngā Whakaaro Matua

• Ko ngā whakatau tino nui me te take mō te hiri miihini i raro i te whakarewa
• 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

Āhea ahau me whiriwhiri i te hiri miihini o te pupuhi whakarewa hei utu mō te hiri o te pupuhi elastomer?

Kōwhiria ngā pupuhi whakarewa mō te wera nui, ngā matū kaha, te mahi cryogenic, te wā rānei he mōrearea te wiri o te pou me te whakairi o te mowhiti-O. Ka pai ngā pupuhi elastomer ki ngā ratonga pāmahana ma, pāmahana waenga.

He aha te awhe pāmahana e pai ake ai te whakamahi i ngā hiri whakarewa?

Ko ngā pupuhi whakarewa he mea pai ake i runga ake i te 200°C, ā, ka taea te tu atu ki te 400°C+ i runga i te koranu. He pai hoki mō ngā pāmahana tino iti ka taea e ngā elastomers te pakarukaru.

He aha i pai ake ai te pono o te papu i ngā hiri o te pupuhi whakarewa?

He hoahoa kore-pana tō rātou, nō reira kāore he paheke elastomer hihiri e pā ki te kakau. Mā tēnei ka ārai i te whakairi, ka whakaiti i te mōrearea turuturu, ā, ka whakakore i te wiri o te kakau i roto i te mahi uaua.

Ka taea e Victor Seals te tuku hiri pupuhi whakarewa mō ngā whakakapinga 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.

He pai ake ngā hiri pupuhi whakarewa mō ngā wai matotoru, paru rānei?

Ae, he maha ngā wā. Mā ngā hoahoa o ngā pupuhi whakarewa ka karohia te aukati o te pute puna i roto i ētahi hiri pana, ā, ka taea te whakahaere i ngā matotoru teitei ake, kia whai hua ai mō ngā mahi papu ahumahi uaua ake.