Gudanar da Tsarin HVAC Kayan Kayan Karfe don Hana lalata

Fahimtar Barazanar Cin Hanci a Tsarin HVAC

Tsarin dumama, iska, da kuma iska mai sanyaya yana dogara ne akan hanyar sadarwa na kayan ƙarfe don yin aiki da aminci a tsawon shekaru na aiki. Duk da haka, lalata ya kasance ɗayan mahimman abubuwan lalata da ke shafar waɗannan sassan, wanda ke haifar da ɓarkewar kayan sanyaya, rage yawan isasshen zafi, rashin daidaito na tsarin, da rashin nasarar tsarin da ba a yi ba. Kudin gyaran da ke tattare da lalata da lokacin kashewa na iya wuce yawan saka hannun jari na farko a cikin matakan rigakafi.

Corrosion wani tsari ne na lantarki wanda metales ke komawa ga yanayin oxide na halitta lokacin da aka fallasa su ga danshi, oxygen, da sauran abubuwan muhalli. A cikin kayan aikin HVAC, wannan tsari yana hanzarta saboda sake zagayowar haɗi, fallasa waje, abubuwan tsabtace sinadarai, da kuma kasancewar mahadi mai acid daga konewa ko ɓarkewar kayan sanyaya. Fahimtar waɗannan hanyoyin yana ba masu fasaha damar aiwatar da ingantattun dabarun rigakafi daga lokacin da aka karɓi abubuwan a wurin.

Nau'in lalata na yau da kullum a cikin kayan HVAC na ƙarfe

Rust (Oxidation) a kan Karfe na Karfe

Abubuwan da ke cikin ƙarfe da ƙarfe na ƙarfe, kamar su coils na mai haɗari, ɗakunan da kuma hanyoyin ruwa, suna iya yin lalata lokacin da danshi da oxygen suka tuntuɓi farfajiyar ƙarfe. Rushe yana da porous kuma yana jan ƙarin danshi, yana haifar da sake zagayowar da ke ci gaba da kai. Wannan nau'in lalata sau da yawa yana farawa a cikin tsatsa, gefuna yanke, ko yankunan da aka lalata rufin kariya yayin aiki.

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Lokacin da aka haɗa ƙarfe biyu daban-daban (misali jan ƙarfe da aluminum, ko karfe da tagulla) a gaban wani electrolyte (ruwa ko haɗuwa), sel ɗin galvanical yana samarwa. ƙarfe mai aiki da sauri yana lalatawa a mahaɗin.

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Ko da ƙarfe "mai tsayayya da lalata" zai iya fuskantar kai hari a wani wuri. Chlorides daga iska mai gishiri, sinadarai na tafkin, ko kuma hanyoyin tsaftacewa suna haifar da rami da ke shiga cikin zurfin yayin da yankin kewaye ya kasance ba shi da lahani.

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Yankunan da aka haɗa da ƙarfe, kamar haɗin flanged, brackets, ko nau'ikan waya, suna kama danshi da ɓarnar. Yanayin da aka rage iskar oxygen a cikin ramuka yana haifar da yanayin lalata wanda ke kai hari ga ƙarfe. Wannan yana da matsala musamman a cikin kayan HVAC da aka girka a waje ko a cikin sarari mara kyau.

Mafi Kyawun Ayyuka don Yin amfani da Abubuwan Karfe Kafin A Saka Su

Ana yin amfani da kayan da aka yi amfani da su sosai a lokacin da aka kai su wurin aiki.

Bincike Bayan Samun

Bayyana yanayin: Hoto duk wani tsatsa, ƙwanƙwasa, ko lahani na rufi kafin karɓar bayarwa.
] Bincika amincin marufi: ] Rashin lalacewa ko marufin mai laushi na iya nuna fallasa danshi yayin sufuri. Yarda da duk wani sassan da ke nuna lalata mai aiki.
Gane takamaiman kayan: Tabbatar da cewa kayan sun dace da bukatun juriya ga lalata don yanayin shigarwa na musamman (yankuna na bakin teku, masana'antu, ko yanayin zafi mai yawa).

Kayan Kariya da Tsarin Kula da Yanayin da Ya dace

Fata safofin hannu masu tsabta: (FLT: 1) Hannun hannu suna barin man fetur da gishiri waɗanda ke haifar da lalata. Yi amfani da auduga ko safofin hannu na nitrile ba tare da ƙuƙwalwa ba lokacin da kake taɓa kowane ƙarfe wanda ba zai sami rufi na ƙarshe ba.
Ka guji haɗuwa da ƙarfe zuwa ƙarfe: Yi amfani da kayan kare roba ko filastik a kan kayan aiki kamar ƙuƙwalwa, maɓallan, da ƙuƙwalwa don hana yin laushi a kan farfadowa ko anodized farfajiya.
Yi amfani da madauri masu ɗagawa: Kayan sarƙoƙi ko igiyoyi na waya na iya shiga cikin yadudduka masu kariya. Sling na nylon suna rarraba kaya kuma suna guje wa lalacewar ƙare.
Keep components separated: Tattara ƙarfe daban-daban kai tsaye a kan juna yana haifar da yanayi don lalata galvanic koda a cikin ajiya. Yi amfani da katako ko masu raba filastik.

Tsabtace Kafin A Saka Shi

Ka cire duk abubuwan da suka gurɓata a lokacin da ake yin su, da sufuri, ko kuma ajiya:

Ragewa tare da masu narkewa da aka amince: Yi amfani da tsabtace mai tsabta wanda ba ya barin sauran. Guji samfuran da ke dauke da chlorides ko sulfates.
Ka kawar da duk wani ragowar acidic: Idan akwai kwarara ko ragowar solder a kan haɗin jan ƙarfe, wanke tare da mai tsaka-tsaki da ruwa mai lalata.
Dry sosai: Bada isasshen iska-tsayawa ko amfani da iska mai tsabta (tare da tarko mai kyau) don cire duk ruwa daga ramuka, zaren, da ramuka masu makanta.

Yanayin Adanawa da Ke Hana Rashin Ƙarfi

Rashin adana kayan abu ne ke haifar da lalata a cikin sassan gyara da kuma sassan maye. Ko da gami mai jure lalata zai iya lalacewa idan aka adana shi a yanayin zafi ko kuma yanayin da ke da mummunan aiki.

Yanayin Adana Abubuwa

Filin da ke ƙarƙashin kulawar yanayi: FLT:1 Yana kiyaye yanayin zafi a ƙasa da 50% da zafin jiki tsakanin 10 °C da 30 °C. Manyan saɓo suna haifar da haɗuwa a kan farfajiyar ƙarfe.
Hawan iska: Ka guji aljihun iska masu tsayawa inda danshi ke tarawa. Yi amfani da masu fans ko masu cire danshi idan ya cancanta.
A waje da bene: Adana kayan a kan pallets ko shelves aƙalla 10 cm sama da bene na kankare don hana wicking na danshi.

Kayan da ke hana lalata

VCI (Vapor Corrosion Inhibitor) wraps: Wadannan kayan suna sakin mahadi waɗanda ke haifar da ƙaramin kariya mai kariya a kan farfajiyar ƙarfe.
Drycants:Saita silica gel, alumina mai aiki, ko kayan kwalliyar kwayoyin a cikin kwantena na ajiya. Kula da alamun canza launi don tabbatar da shan danshi mai aiki.
Tukunin da aka rufe: Don sassan da ke da ƙima ko masu mahimmanci, yi amfani da jakunkunan polyethylene ko nailan da aka rufe da zafi bayan an yi amfani da ƙwallo ko masu fitar da VCI.

Ƙarfin da ke juyawa

Yi amfani da tsarin farko-cikin-farko-farko-daga-daga (FEFO) don tabbatar da an shigar da tsofaffin sassan kafin su tara lokaci mai yawa na ajiya.

Kayan Kariya da Kuma Kayan Kula da Yanki

Yin amfani da rufi mai kyau zai iya ƙara tsawon rayuwar kayan aikin HVAC. Zaɓin ya dogara da zafin jiki na aiki, fallasa sinadarai, da kuma bukatun lalacewa na inji.

Fata da kuma Epoxy Coatings

Flat: 0 Zinc mai wadataccen primers: FLT:1 suna ba da kariya ta hadaya ga karfe.
Lata na polyurethane: suna ba da kyakkyawar juriya ga UV don raka'a na waje. Yi amfani da akalla biyu da ke bin ƙa'idodin ƙarancin kaurin fim na masana'anta.
Tsarin epoxy: Ideal don nutsewa ko wuraren da ke da haɗari kamar kwanon rufi da abubuwan da ke cikin hasumiyar sanyaya.

Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙ

Don manyan kayan gini, fesawar zafi na zinc, aluminum, ko zinc-aluminum alloys yana haifar da kauri, mai ɗaure ƙarfe wanda ke ba da kariya ga lalata na shekaru da yawa. Ana amfani da wannan hanyar sau da yawa akan ɗakunan kayan HVAC, gidajen fan, da tushe na condenser da aka fallasa ga mawuyacin yanayin bakin teku.

Anodizing da kuma juyawa coatings

Anodizing don aluminum: Flt: 1 Electrochemical thickening na halitta oxide Layer. Hard anodizing samar da abrasion juriya da kuma lalata kariya ga fan blades, zafi musayar fins, da kuma kwampreso gidaje.
Passivation na bakin karfe: A sinadarai da ke cire free baƙin ƙarfe daga farfajiya da kuma inganta chromium oxide Layer. Muhimmanci ga aka gyara amfani a chlorinated ko acidic yanayi.

Masu Kāre Lokaci

Don sassan da ba a rufe su nan da nan bayan shigarwa ba, yi amfani da magungunan rigakafi kamar masu hana lalata fim mai bushe ko kayan shafa mai ruwa. Ana cire su yayin shigar da su cikin aiki na ƙarshe ko kuma su ƙone lafiya yayin aiki.

Zaɓin Abubuwan da Za Su Sa Mu Yi Rayuwa Mai Tsawo

Zaɓin ƙarfe mai kyau don kowane ɓangaren shine dabarun da ya fi tasiri a cikin dogon lokaci.

Environment	Recommended Materials	Avoid
Coastal / Marine	316L stainless steel, titanium, superferritic stainless	Galvanized steel (in severe salt spray), 304 stainless (if coastal with high chlorides)
Industrial (chemicals, acids)	Hastelloy, titanium, 6% moly stainless	Carbon steel, 300-series stainless in chloride media
Commercial / Office (indoor)	Galvanized steel, painted carbon steel, aluminum	Uncoated steel (unless dehumidified space)
High-temperature exhaust	409 or 439 stainless steel, coated carbon steel with ceramic	Aluminum (melts or corrodes above 200°C)

Koyaushe tuntuɓi mai sana'a game da takamaiman abun da ke cikin gami da kuma yanayin, saboda ba duk nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau

Tsarin Kulawa na Tsare-tsare a Lokacin Rayuwa

Aikin kula da kayan yana nuna cewa idan ba a yi aiki da kyau ba, za a iya ƙara haɗarin karfe.

Sau da yawa da kuma hanyoyin dubawa

Binciken gani a kowane wata: FLT:1 Duba don canza launi, sikelin, fararen ko ja foda (aluminum vs lalata baƙin ƙarfe), da kowane ɓarkewar rufi.
Binciken ɓoyayyun wurare: Yi amfani da borescopes don bincika cikin kwanonin ruwa, a bayan allon shiga, da kuma a cikin sauye-sauyen ducts inda condensation ke faruwa a cikin rufi.
Gwajin kauri na ultrasonic a kowace shekara: Don masu musayar zafi da na'urorin matsi, auna kaurin bango da ya rage don kama raguwa gaba ɗaya kafin lalacewa.
]Bincika haɗin dielectric: Tabbatar cewa filastik ko na roba masu rufi suna da kyau tsakanin ƙarfe daban-daban (misali, inda layin sanyaya mai jan ƙarfe ke haɗuwa da bawul ɗin sabis na ƙarfe).

Tsabtace a Lokacin Kulawa

Ka guji yin amfani da hanyoyi masu tsanani da za su kawar da abubuwa masu kāre ka ko kuma su sa abubuwa masu gurɓataccen yanayi su shiga cikin ɓangarori:

FLT:0]]Yi amfani da ruwa mai ƙananan matsin lamba: Masu wankewa masu matsin lamba suna tilasta ruwa ta hanyar seals da kuma cikin rufi, yana inganta lalata daga ciki.
Zaɓi tsabtace pH- tsaka tsaki: [1] Alkaline ko acidic coil cleaners na iya kai hari ga ƙarfe idan ba a wanke su sosai ba. Koyaushe bi ƙimar narkewa na masana'anta.
Brushes masu laushi da kuma pads marasa lalata: Plastik ko brass bristle brushes suna karɓa; kar a taɓa amfani da ulu na karfe a kan farfajiya mara bakin ciki ko na aluminum (ƙwayoyin baƙin ƙarfe da rust).
FlT:0]]Goge tare da ruwa mai narkewa: A yankuna tare da babban abun ciki na ma'adinai a cikin ruwan famfo, wankewa ta ƙarshe tare da ruwan da aka cire ma'adinai yana hana ƙwayoyin calcium ko chloride wanda ke haɓaka lalata.

Gyara da sauri na lalacewar rufi

Dole ne a gyara duk wani tsatsa, ƙura, ko tsatsa ta hanyar fenti ko farantin nan da nan. Nuna ƙarfe a iska na iya haifar da lalata ta wuri wanda ke yaduwa a ƙarƙashin farantin. Ka ajiye kayan gyara a kowane motar sabis wanda ya ƙunshi:

Fata mai launi mai dacewa ko mai hana lalata mai tsabta
Gwanin da aka shirya don farfajiya (tsabtace, ragewa, da kuma etch)
Ƙananan goga da tef mai rufewa
Kayan bushewa don adana kayan gyara

Yin Magana da Abubuwan Da Ke Saurin Yanayin Muhalli

Kula da danshi da kuma sanyaya

Rage lokacin da farfajiyar ƙarfe ke zama mai danshi:

Shigar da kwanonin ruwa tare da gangara mai kyau (ba ruwa tsaye).
Ka yi amfani da hanyoyin cire ruwa ko kuma tsarin cire kayan da ke cire ruwa daga cikin karfe.
Ka lullube layin firiji mai sanyi tare da rufin ƙwayoyin ƙulli kuma ka tabbata an haɗa shingen tururi a duk haɗin.

Tushen Kimiyya

Kayan aikin HVAC na yau da kullun waɗanda ke hanzarta lalata idan ba a kula da su ba:

Chlorine da chlorides: sunadarai na tafkin, kayan tsabtace mai launin fata, da ragowar daga ɓarnar refrigerant.
Hadin gwiwar sulfur: Samfurori masu ƙonewa daga na'urorin dumama gas, musamman idan ba a fitar da iskar hayaƙi yadda ya kamata ba.
Acidic condensate: Rashin pH na ruwa daga tanda ko na'urorin wanke iska na iya lalata kwanonin ruwa da ƙarfe masu makwabtaka da shi. Sanya masu lalata condensate.

Ruwa na Wuta na Wuta

Ƙarƙashin ƙasa mara kyau na iya haifar da ƙarfin DC mara kyau wanda ke lalata tagulla, aluminum, da karfe ta hanyar lantarki. Tabbatar cewa duk kayan aikin suna ƙasa zuwa daidai wannan ma'anar kuma babu yiwuwar kusan DC tsakanin ɓangarorin ƙarfe. Yi amfani da kayan haɗin dielectric inda ake buƙatar keɓewar lantarki.

Nazarin Kashi: Hana lalata coil a cikin wuraren da ke bakin tekun

Wani sarkar otal da ke aiki a Tekun Gulf ya sami gazawar coil na condenser a cikin watanni 18. Kayan aiki na asali sun yi amfani da madaidaicin aluminum da bututun tagulla. Ta hanyar sauyawa zuwa cikakkun bututun da ke tsayayya da lalata tare da bututun tagulla da aka rufa da polymer epoxy da kayan ƙusa na aluminum da aka riga aka fenti (tare da rufin baya don hana lalata rata daga bututun zuwa bututun), da aiwatar da tsaftacewa ta kwata-kwata tare da mai tsabtace jiki mai ƙarancin pH wanda aka bi ta wanke ruwan sha mai tsabta, an tsawaita rayuwar coil zuwa sama da shekaru 8. An sake nazarin hanyoyin sarrafawa don haɗa da ɗaukar kariya yayin sufuri da shigarwa, tare da safofin hannu dole ne duk lokacin da aka sarrafa coils.

Horarwa da Takaddama ga Masu Fasaha a Filin

Ana amfani da kyawawan ayyuka ne kawai idan ana amfani da su a kai a kai.

Lissafin duba wuraren aiki: Tsarin aiki na yau da kullun don karɓar, adanawa, shigarwa, da kiyaye kayan ƙarfe.
]Takaddun hoto: ] Buƙatar masu fasaha su ɗauki hotuna na duk wani lalacewar da ta riga ta kasance da na kayan aikin ƙarshe don ƙirƙirar tushe don dubawa na gaba.
Bayanan bayanan aminci na kayan (SDS) sake dubawa: Tabbatar da masu fasaha sun saba da haɗari da kuma amfani da kayan shafawa, kayan tsabtace jiki, da masu hana lalata.

Ƙarshen

Hana lalata a cikin kayan ƙarfe na HVAC ba aiki ne mai aiki ba ne amma horo ne mai ci gaba wanda ke farawa da zaɓi na kayan da aka yi da hankali da kuma sarrafawa daidai daga rana ta farko. Ta hanyar fahimtar tsarin lalata, aiwatar da ƙa'idodin ajiya da sarrafawa, amfani da rufin kariya mai dacewa, da haɗa dubawa na yau da kullun cikin jadawalin kulawa, masu fasaha na iya rage lalacewar wuri da tsawaita rayuwar tsarin. saka hannun jari a cikin waɗannan ayyukan yana biya kansa sau da yawa ta hanyar rage gyaran gaggawa, rage farashin maye gurbin, da daidaitaccen aikin tsarin.

Don ƙarin bayani game da rufin lalata da ƙa'idodin kayan, duba albarkatun masana'antu kamar American Society of Mechanical Engineers , NACE International (yanzu AMPP) , da ASHRAE HandbookHVAC Systems and Equipment .

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