Zolakwa Zofala Pogula Mafoni Otsimikizira Kuphulika

Chiyambi

Kugula zida zolumikizirana m'malo oopsa sikukhudza kusankha foni yolimba koma kumafuna kufananiza chipangizocho ndi zoopsa zenizeni zoyatsira, ziphaso, ndi zofunikira pakugwiritsa ntchito malo. Zolakwika zambiri zogulira zimachitika ogulitsa asanayerekezeredwe, pamene magulu a zoopsa samveka bwino, miyezo yofunikira imamvedwa molakwika, kapena zosowa zenizeni monga phokoso, magetsi, ndi mwayi wokonza zinthu sizinyalanyazidwa. Nkhaniyi ikufotokoza zolakwika zomwe mabungwe amachita posankha mafoni osaphulika, ikufotokoza chifukwa chake zolakwikazo zimapangitsa kuti pakhale chitetezo, kutsatira malamulo, kapena mavuto a ndalama, ndipo imapatsa owerenga maziko omveka bwino owunikira zofunikira asanasankhe mwatsatanetsatane zogula.

Chifukwa Chake Mafoni Otsimikizira Kuphulika Amagulidwa Molakwika

Kugula zida zolumikizirana zosaphulika ndi ntchito yofunika kwambiri pomwe kulondola kwa uinjiniya, kutsatira malamulo, ndi zoletsa za bajeti zimagundana. Mabungwe akagula molakwikamafoni osaphulikaZotsatira zake sizimangowonjezera mavuto ogwirira ntchito; zimayambitsa zoopsa zazikulu zoyatsira moto m'malo osinthasintha kapena zimapangitsa kuti pakhale ndalama zambiri zosafunikira. Ngakhale kuti zipangizozi zili ndi vuto lalikulu m'malo oyeretsera mafuta, mafakitale opanga mankhwala, ndi malo osungiramo zinthu m'mphepete mwa nyanja, magulu ogula zinthu nthawi zambiri amapanga zolakwika zazikulu panthawi yowunikira ndi kupeza zinthu.

Muzu wa kugula molakwika kwambiri uli mu kusiyana pakati pa zenizeni zaukadaulo za malo oopsa ndi malingaliro amalonda omwe akuyendetsa nthawi yogula. Mwa kudzipatula komwe njira yogulira yalephera, ogula aukadaulo ndi oyang'anira malo amatha kuchotsa zovuta zomwe zili mu netiweki yawo yolumikizirana.

Momwe kuwunika kofooka kwa zoopsa kumatsogolera kugula zinthu molakwika

Cholakwika chachikulu pogula mafoni osaphulika ndi kudalira magulu akale, akuluakulu kwambiri, kapena osalembedwa bwino m'malo oopsa. Magulu ogula nthawi zambiri amalandira malangizo osamveka bwino kuti agule zida "zotetezeka mkati" kapena "zosaphulika" popanda kutchula Zone kapena Division yeniyeni. Mwachitsanzo, kusagwiritsa ntchito Zone 1 (ATEX) kapena mafoni ovomerezeka a Class I, Division 1 (NEC) a malo omwe amangofuna kutsatira Zone 2 kapena Division 2 ndi cholakwika chokwera mtengo. Kufotokozera mopitirira muyeso kumeneku nthawi zambiri kumawonjezera ndalama zogulira ndi 40% mpaka 60% pa unit iliyonse, chifukwa zida za Zone 1 zimafuna malo olimba kwambiri otchingidwa ndi njira zovuta zamoto.

Mosiyana ndi zimenezi, zipangizo zosakwanira kufotokozedwa bwino chifukwa cha kuwunika kofooka kwa ngozi zimapangitsa kuti pakhale zoopsa zoopsa. Ngati malo opangira magetsi akugwiritsa ntchito haidrojeni koma kuwunikako sikukutsimikizira kufunika kwa satifiketi ya Gas Group IIC, ogula angagule mafoni a Group IIA kapena IIB mwangozi. Ngati pakhala vuto, zipangizozi zomwe sizinayesedwe bwino sizimakhala ndi mipata yokwanira yozimitsa kuyatsa kwamkati komwe kumachokera ku haidrojeni, zomwe zimapangitsa kuti foniyo ikhale gwero lalikulu la kuyatsa.

Chifukwa chiyani malingaliro a mtengo wa moyo amasokoneza zisankho

Kupatula ndalama zoyambira (CapEx), malingaliro olakwika a mtengo wa moyo nthawi zonse amasokoneza zisankho zogula. Ogula nthawi zambiri amayesa mafoni opikisana omwe sagwedezeka kutengera mtengo wa chipangizo choyambirira, osanyalanyaza ndalama zogwirira ntchito za nthawi yayitali (OpEx) zomwe zimafunika kuti zitsatidwe m'malo ovuta amakampani. Foni yogulitsidwa pamtengo wotsika wa $800 imatha kupanga ndalama zokwana $2,500 zokonzera mkati mwa zaka zisanu ngati ikufuna zida zapadera kapena ntchito yapadera yokonza.

Kuphatikiza apo, ogula nthawi zambiri amalephera kufotokozera za Mean Time Between Failures (MTBF) ndi mtengo wa nthawi yogwirira ntchito. Mu malo obowola m'mphepete mwa nyanja, kulephera kwa node yolumikizirana yotetezeka chifukwa cha dzimbiri msanga kapena kulowa kwa chinyezi sikuti kumangoyimitsa ntchito zapafupi komanso kumabweretsa ndalama zambiri zoyendetsera ntchito kuti atumize akatswiri ovomerezeka. Kuganizira zofunikira za MTBF zosachepera maola 50,000 ndikuwunika kupezeka kwa zinthu zokhazikika komanso zosavuta kusintha ndi njira zosakambidwa kuti pakhale chitsanzo cholondola cha mtengo wa moyo.

Zolakwa Zaukadaulo Zomwe Ndi Zofunika Kwambiri

Mafotokozedwe aukadaulo amatsimikiza chitetezo ndi magwiridwe antchito azipangizo zolumikizirana zamafakitaleNgati ogula sakumvetsa kapena kunyalanyaza zofunikira zaukadaulo, amakhala pachiwopsezo chogwiritsa ntchito zida zomwe sizingathe kupirira zochitika zachilengedwe kapena kuthandizira kulankhulana momveka bwino panthawi yadzidzidzi. Kulondola kwambiri pazofunikira zake ndiye chitetezo chokhacho ku zolephera izi.

Momwe mungagwirizanitsire mafoni ndi malo enieni oopsa

Malo oopsa amafuna kufanana pakati pa zoopsa zachilengedwe ndi ziphaso za foni. Kupatula Gawo loyambira kapena Gawo, ogula ayenera kuwunika mosamala Gulu la Kutentha (T-Class). Cholakwika chomwe chimachitika nthawi zambiri ndi kufuna T6 mosafunikira (kutentha kwakukulu kwa pamwamba pa 85°C) pamene T4 (135°C) ndi yokwanira mokwanira pa mpweya womwe ulipo. Kusankha T-Class mopitirira muyeso kumaletsa kwambiri zosankha za ogulitsa ndikukweza ndalama popanda kupereka phindu lililonse lachitetezo.

Kuphatikiza apo, njira yolumikizirana yeniyeni iyenera kugwirizana ndi zomangamanga za malo ogwirira ntchito. Ogula nthawi zambiri amayesa kuphatikiza mafoni akale osaphulika a analog mu maukonde amakono a IP pogwiritsa ntchito ma converter a analog-to-digital omwe ali m'deralo, omwe sanatsimikizidwe, zomwe nthawi yomweyo zimalepheretsa kutsatira malamulo a malo oopsa a msonkhanowo. Kufotokozera mwachindunji mafoni a SIP/VoIP omwe ali ndi chitsimikizo cha malo enieniwo ndikofunikira pakugwiritsa ntchito mafoni amakono.

Kodi ndi zinthu ziti zomwe zili mu enclosure, IP rating, acoustic output, ndi handset zomwe zili zofunika?

Kapangidwe ka foni kamaonetsa kuti ingathe kupulumuka. Ogula nthawi zambiri samamvetsetsa bwino kuchuluka kwa Ingress Protection (IP), poganiza kuti IP66 (chitetezo ku nyanja yolemera/madzi amphamvu) ndi yotsika poyerekeza ndi IP67 (kumira kwakanthawi). M'malo ambiri osambira ndi petrochemical, kukana kwamphamvu kwa IP66 ndikofunikira kwambiri kuposa kukana kwa IP67. Zipangizo zomwe zili mkati mwake zimakhudzanso kwambiri moyo wautali; kuyika aluminiyamu wamba pamalo owononga kwambiri m'madzi m'malo mwa Glass Reinforced Polyester (GRP) kapena Stainless Steel 316L kungayambitse kuwonongeka mwachangu.

Kuchita bwino kwa mawu ndi njira ina yomwe nthawi zambiri imaganiziridwa molakwika. M'malo okhala ndi phokoso lalikulu monga zipinda zojambulira, phokoso lozungulira limatha kupitirira 100 dB. Kugula foni yosaphulika yokhala ndi ringer yokhazikika ya 80 dB(A) kumatsimikizira kuyimba kosagwiritsidwa ntchito panthawi yofunikira. Mafotokozedwe ayenera kufunikira njira yolumikizirana ya acoustic kapena visual alert, nthawi zambiri imafuna relay yomangidwa mkati kuti iyambe phokoso lakunja la 110 dB(A) kapena beacon yovomerezeka ya Xenon strobe. Zingwe za m'manja ziyeneranso kuyesedwa; zingwe zozungulira zokhazikika zimadulidwa zikagwiritsidwa ntchito m'mafakitale, zomwe zimapangitsa kuti zingwe zachitsulo zosapanga dzimbiri zolemera zosachepera 200kg zikhale zolimba.

Momwe mungayerekezere bwino mitundu

Kuwunika mitundu yopikisana kumafuna kupitirira mabulosha otsatsa ndikuyerekeza mwachindunji zofunikira zaukadaulo. Ogula ayenera kugwirizanitsa zida, satifiketi, ndi luso la mawu motsutsana ndi maziko enieni kuti apewe kulephera kwa kugula zinthu mwadongosolo.

Zolakwika Zokhudza Kutsatira Malamulo ndi Chitsimikizo Chomwe Chili ndi Chiwopsezo Chachikulu

Kutsatira malamulo ndi njira yoyambira zida zoopsa m'malo ogwirira ntchito. Komabe, malamulo apadziko lonse lapansi ndi ogawanika kwambiri, ndipo kutanthauzira molakwika miyezo ya satifiketi ndi chimodzi mwa zolakwika zoopsa kwambiri zomwe wogula angapange mwalamulo komanso pazachuma. Kukhazikitsa zida zosatsatira malamulo sikungochotsa mfundo za inshuwaransi ya malo komanso kumaika bungwe pachiwopsezo chachikulu cha malamulo.

Chifukwa chiyani kusokoneza malamulo a ATEX, IECEx, NEC, ndi am'deralo kumabweretsa mavuto?

Malo otetezera kuphulika padziko lonse lapansi amalamulidwa ndi njira zosiyana, zomangira malo. Cholakwika chachikulu chimachitika pamene magulu ogula zinthu akuganiza kuti ziphaso zimasinthasintha padziko lonse lapansi. Mwachitsanzo, kugula foni yokhala ndi satifiketi ya European ATEX Directive 2014/34/EU ndikuyiyika pamalo aku North America omwe amalamulidwa ndi miyezo ya NEC 500/505 (OSHA) ndi kuphwanya malamulo mwachindunji, ngakhale kuti kulolerana kwa chipangizocho ndikokwanira.

Mofananamo, kusokoneza dongosolo la IECEx lapadziko lonse lapansi ndi malamulo am'deralo kumayambitsa kuchedwa kwakukulu kwa ntchito. Ngakhale IECEx imagwira ntchito ngati maziko a miyezo yambiri yadziko, mayiko monga China (CCC Ex), Brazil (INMETRO), ndi Russia (EAC Ex) amafunika mayeso am'deralo ndi zizindikiro za satifiketi. Ogula omwe alephera kufotokoza satifiketi yeniyeni yachigawo yomwe ikufunika mu Pempho lawo la Quotation (RFQ) nthawi zambiri amakumana ndi kusungidwa kwa misonkho kapena kukakamizidwa kukonzanso, zomwe zimachedwetsa kuyamba ntchito kwa ntchitoyo miyezi ingapo.

Momwe mungatsimikizire satifiketi, zilembo, ndi mafayilo aukadaulo

Kungodalira zomwe wogulitsa akunena kuti "sangathe kuphulika" popanda kutsimikizira zikalata zomwe zili mkati mwake ndi kulephera kwadongosolo pofufuza mosamala. Ogula ayenera kutsimikizira mosamala Satifiketi Yoyeserera ya Mtundu wa EU kapena chikalata chofanana ndi chapafupi. Izi zikuphatikizapo kuyang'ana nambala ya Notified Body (NB) ndikuwonetsa kutsimikizika kwa satifiketiyo pa database ya bungwe lopereka kuti atsimikizire kuti sinayimitsidwe kapena kuchotsedwa.

Kuphatikiza apo, deta ya chipangizocho (chizindikiro) iyenera kufanana ndi mafayilo aukadaulo ndi magulu enieni a zoopsa za chipangizocho. Magulu ogula ayenera kuwunika zidziwitso zotsimikizira khalidwe la wopanga (monga ATEX QAN kapena IECEx QAR) kuti atsimikizire miyezo yokhazikika yopangira. Kukana ogulitsa omwe ali ndi zilema zopitilira 1.5% kapena omwe sangathe kupereka malipoti oyesera okwanira komanso otsatizana a chipangizo chilichonse ndi njira yofunikira yochepetsera chiopsezo.

Momwe Kupezera, Kukhazikitsa, ndi Kukonza Kumakwezera Ndalama Zonse

Mtengo wonse wa umwini wa mafoni osaphulika umapitirira malire a nthawi yogulira yoyamba. Zolakwika pakupeza njira zoyendetsera zinthu, njira zosayenerera zoyikira, ndi njira zosamalira zosasamalidwa nthawi zambiri zimawonjezeka, zomwe zimapangitsa kugula komwe kumawoneka ngati kotsika mtengo kukhala vuto la zachuma lopitirira. Kuwongolera zinthu izi kumafuna kuyang'anira kwamphamvu kwa ogulitsa ndikutsatira kwambiri njira zoyikira zovomerezeka.

Momwe kusankha ogulitsa, nthawi yopezera zinthu, ndi zida zina zimakhudzira zotsatira

Kusintha kwa unyolo woperekera katundu kumakhudza kwambiri kupambana kwa ntchito zama telecom zamafakitale. Zipangizo zosaphulika nthawi zambiri sizimagulitsidwa nthawi zonse; kuyika zinthu mwapadera komanso kuyesa mwamphamvu kumatanthauza kuti nthawi yotsogolera nthawi zambiri imadutsa kuyambira milungu 8 mpaka 16. Ogula omwe sadziwa bwino za nthawi yayitali yopangira zinthu nthawi zambiri amagwiritsa ntchito ndege zonyamula katundu mwachangu, zomwe zimatha kuwonjezera 15% mpaka 20% pa mtengo wonse wa polojekitiyi chifukwa cha kulemera kwakukulu kwa malo ozungulira.

Kusankha ogulitsa kuyeneranso kukhala patsogolo pa kupezeka kotsimikizika kwazida zosinthira zovomerezekaNgati wogulitsa achotsa mainboard inayake kapena keypad yovomerezeka popanda chosinthira chogwirizana ndi kumbuyo, foni yonse iyenera kutayidwa ngati chipangizocho chalephera kugwira ntchito. Kupeza chitsimikizo cha pangano la kupezeka kwa zida zina kwa zaka zosachepera 10 mutagula ndi chitetezo chofunikira kwambiri kuti chisagwiritsidwe ntchito mokakamiza.

Ndi zolakwika ziti zoyika ndi kukonza zomwe zimapangitsa kuti pakhale chiopsezo chopewedwa

Ngakhale foni yovomerezeka bwino kwambiri yosaphulika imakhala yoopsa kwambiri ngati itayikidwa molakwika. Cholakwika chachikulu ndikugwiritsa ntchito ma chingwe okhazikika, osatsimikizika panthawi yoyika. Ngati foni ya Ex d (yosayaka moto) ili ndi chiwalo chosadziwika, umphumphu wa njira ya moto umawonongeka nthawi yomweyo, zomwe zimachotsa mwalamulo chiphaso chonse cha chipangizocho ndikulola mpweya wophulika kuyenda kudzera mu ngalande.

Zolakwika pakukonza zimapangitsanso zoopsa zomwe zingapeweke. Mabotolo olemera omangira mpanda wosayaka moto ayenera kumangidwa molingana ndi zomwe wopanga akufuna. Kulephera kugwiritsa ntchito mphamvu yofunikira—monga, kulimbitsa pang'ono pa 10 Nm pamene zofunikirazo zimafuna 15 Nm—kumasiya mipata yaying'ono m'ma flanges opangidwa ndi makina, zomwe zimapangitsa kuti njira ya moto isagwire ntchito panthawi ya kuphulika kwamkati. Kukonza kwanthawi zonse kuyenera kuchitidwa ndi akatswiri ovomerezeka a CompEx (kapena ofanana nawo) okha kuti atsimikizire kuti kulekerera kofunikira kumeneku kukusungidwa.

Njira zogulira zinthu zomwe zimathandizira kufananiza kwa ogulitsa

Kuti athetse mavuto amenewa, magulu ogula zinthu ayenera kugwiritsa ntchito njira zowunikira zomwe zimayesa miyezo ya kayendetsedwe ka zinthu ndi magwiridwe antchito pamodzi ndi mitengo ya mayunitsi. Izi zimatsimikizira kuti pali mawonekedwe onse a luso la ogulitsa.

Momwe Ogula Ayenera Kupangira Chisankho Chomaliza

Kutha kwa njira yogulira zinthu kumafuna kuphatikiza zofunikira pa uinjiniya, malamulo oyendetsera zinthu, ndi zopinga zachuma kukhala chisankho chimodzi chogwirizana chogula zinthu. Ogula ayenera kusiya kupanga zisankho zodzipatula, pomwe kugula zinthu kumatsata mtengo wotsika kwambiri pomwe uinjiniya umafuna zofunikira kwambiri mosasamala kanthu za kufunikira kwenikweni.

Kodi ndi njira ziti zomwe zimagwirizanitsa ukadaulo, kugula, ndi ntchito

Ndondomeko yolimba yopangira zisankho imagwirizanitsa zinthu zofunika kwambiri pa uinjiniya, kugula, ndi ntchito. Uinjiniya uyenera kufotokoza malire ovuta: Zone/Division yeniyeni, Gas Group, Temperature Class, ndi protocol yofunikira ya netiweki (monga, SIP over IEEE 802.3af PoE). Ntchito zimalamula zofunikira pa ergonomic ndi functional, monga kufunikira kwa keypad yonse motsutsana ndi auto-dial hotline, kapena kuphatikiza kwa 90 dB(A) visual-acoustic alert system.

Udindo wa kugula zinthu mkati mwa dongosololi ndikupeza zida zomwe zikukwaniritsa malire osakambirana awa pomwe zikukwaniritsa bwino mtengo wonse wa umwini.

Mfundo Zofunika Kwambiri

• Zomaliza zofunika kwambiri ndi zifukwa zomveka za mafoni otsimikizira kuphulika
• Mafotokozedwe, kutsata malamulo, ndi macheke owopsa oyenera kutsimikiziridwa musanachite izi
• Njira zotsatila zogwira mtima komanso machenjezo omwe owerenga angagwiritse ntchito nthawi yomweyo

Mafunso Ofunsidwa Kawirikawiri

Kodi cholakwika chachikulu chomwe chimachitika nthawi zambiri mukamagula mafoni osaphulika ndi chiyani?

Pogwiritsa ntchito chiŵerengero chosamveka bwino cha zoopsa. Nthawi zonse tsimikizirani kalasi yeniyeni ya Zone/Division, gasi, ndi kutentha musanayitanitse kuti mupewe kusanthula kosatetezeka kapena kuwerengera kokwera mtengo kwambiri.

Kodi nthawi zonse ndimafunikira chiphaso chapamwamba kwambiri cha ATEX kapena T6?

Ayi. Kugula zinthu kupitirira zomwe zimafunika pamalopo kungakulitse ndalama zambiri. Gwirizanitsani satifiketi ya foni ndi kuwunika kwanu kwa malo oopsa.

Nchifukwa chiyani kusankha njira yoyendetsera mafoni ndikofunikira pa mafoni omwe safuna kuphulika?

Kusagwirizana kungasokoneze kutsatira malamulo kapena kusokoneza kukhazikitsa. Ngati tsamba lanu likugwiritsa ntchito IP PBX kapena VoIP, sankhani foni ya SIP yovomerezeka m'malo mowonjezera ma converter osatsimikizika.

Ndi zinthu ziti zachilengedwe zomwe ndiyenera kuziyang'ana ndisanagule?

Tsimikizirani IP rating, kukana dzimbiri, kutulutsa mawu, ndi kulimba kwa foni. Pa malo akunja, migodi, kapena malo akunja, tsatanetsatane uwu nthawi zambiri umakhala wofunika monga satifiketi yotetezera kuphulika.

Kodi Siniwo ingathandize bwanji kuchepetsa zolakwika zogulira?

Siniwo imapereka chithandizo chimodzi chokha kuyambira pakupanga ndi kuphatikiza mpaka kukhazikitsa ndi kukonza, kuthandiza ogula kufananiza mafoni ovomerezeka omwe saphulika ndi momwe zinthu zilili m'mafakitale.