Ziwalo zowotchera kutentha zimagwira ntchito mosinthasintha kutentha kwanthawi yayitali, kupanikizika kosiyanasiyana komanso kukhudzana kosalekeza, pomwe cholakwika chimodzi chapangidwe, kusankha kolakwika kwazinthu kapena kutayika kungayambitse kutsekeka kosayembekezereka, kutayikira kwapakatikati komanso nthawi yotsika mtengo. Mosiyana ndi zigawo za chotengera choponderezedwa, zigawo zosinthira kutentha ziyenera kulinganiza mphamvu zamapangidwe, njira yoyenda bwino komanso kukana kwa dzimbiri kwanthawi yayitali nthawi imodzi. Kwa akatswiri opanga ma process, akatswiri opanga zida ndi owunika ukadaulo m'mafakitale amankhwala, petrochemical, mankhwala ndi zakudya, zisankho zosamveka zopanga mapangidwe nthawi zambiri zimatulutsa ziwopsezo zobisika zomwe sizingadziwike bwino ngakhale pambuyo poyesa kukakamiza. Bukuli limafotokoza mwadongosolo malamulo opangira zinthu, kusankhidwa kwa aloyi kuti asawonongeke ndi sing'anga, kukhathamiritsa kwa gating system, zofunikira pakuchiza kutentha, kuyang'anira zolimba komanso malangizo othandiza oletsa dzimbiri, kukuthandizani kupewa zolephera zomwe zimachitika nthawi zambiri popanga gawo losinthira kutentha.
1. Chifukwa Chake Kuponyera Mapangidwe Kufunika Pamagawo a Industrial Heat Exchanger
Magulu ambiri opangira zinthu poyambira amatenga zida zosinthira kutentha ngati zida zosavuta zamakina ndikutengera molunjika pamapangidwe agawo, zomwe nthawi zambiri zimabweretsa mavuto akulu pakagwira ntchito pambuyo pake. Zigawo zosinthira kutentha monga mapepala a chubu, mphuno zolowera/zotulutsiramo ndi zipolopolo zogawanika sizothandiza chabe; iwonso ndi kukakamizidwa malire kuti mwachindunji kulankhula sing'anga ndondomeko. Mapangidwe olakwika oponyera amatha kuyambitsa kubisala kobisika, makulidwe a khoma komanso kupsinjika kotsalira kosasunthika, komwe sikungathe kuthetsedwa ngakhale ndi makina athunthu.
Poyerekeza ndi mbali machined odulidwa ku forgings olimba, bwino cholinga kuponyera zigawo kutentha exchanger akhoza kupanga zovuta pafupi-ukonde mawonekedwe otaya nyumba yogawa mu sitepe imodzi kuthira, kuchepetsa kwambiri Machining voliyumu, zinyalala zakuthupi ndi wonse kupanga mtengo. Koma ubwino umenewu umangogwira ntchito pamene mapangidwe oponyera okha amaganizira mokwanira zofunikira zenizeni za zida zosinthira kutentha. Zochitika zolephereka wamba, monga kuwonongeka kwa dzimbiri m'derali pamphambano ya nozzle, kutsekeka kwa njira yotuluka chifukwa cha mchenga wotsalira, komanso kutayikira kwa chubu chosindikizira poyambira, nthawi zambiri zimakhazikitsidwa ndi zisankho zosamveka zomwe zidapangidwa koyambirira, m'malo mopanga zolakwika pambuyo pake.
2. Mapangidwe Amtundu Wambiri ndi Malamulo Opangira Magawo Osinthira Kutentha
Zomwe zimagwiritsidwa ntchito kwambiri pakuwotcha kutentha pama projekiti amakampani zimaphatikizapo mapepala a chubu, ma nozzle flanges, zotchingira zosinthira kutentha, zipolopolo zogawikana ndi zolumikizira zosinthira. Chilichonse mwazinthu izi chimakhala ndi zoyambira zake zopangira zomwe zimakhudza kudalirika kwa gawo lomaliza.
Pakupanga mapepala a chubu, lamulo lofunikira kwambiri ndikusunga makulidwe a khoma kudera lonse la mbale. Magawo ang'onoang'ono okhuthala pamalo a abwana a bawuti amatha kupanga malo otentha okhazikika panthawi yolimba, zomwe zimapangitsa kuti mkati mwake mukhale shrinkage porosity yomwe singadziwike ngakhale pakuwunika kwa UT nthawi zina. Ngodya zonse zakuthwa zolumikizana pakati pa pepala la chubu ndi zotumphukira za flange ziyenera kupangidwa ndi utali wokwanira wosinthira, kupewa kupsinjika komwe kumayambitsa kutopa kwapang'onopang'ono kutentha kwapang'onopang'ono.
Kwa zipolopolo zogawira zotuluka ndi zophimba zomaliza, njira yolowera mkati iyenera kupangidwa kuti ipewe ngodya zakufa zomwe sizingatsukidwe pambuyo poponya. Zotsalira zotsalira zotsalira za mchenga ndi zidutswa za zipolopolo za ceramic zomwe zatsala mkati mwa njira yopita zidzatengedwera mu mtolo wa kutentha kwa chubu panthawi ya ntchito, zomwe zimayambitsa kutsekeka kwa otaya ndi kuchulukitsa kukokoloka kwa nthaka. Makulidwe ochepera a khoma pamapangidwe opangira kutentha ndi osachepera 6mm pazigawo zazitsulo zosapanga dzimbiri, komanso zosachepera 8mm pagawo lalikulu lamphamvu la carbon steel. Malo onse ovuta kwambiri osindikizira ayenera kusunga ndalama zokwanira makina, kuonetsetsa kuti malo omaliza omaliza sakuwonetseni zolakwika zilizonse za porosity.
3. Kusankha kwa aloyi kwa Corrosion ndi Njira Yapakatikati
Kusankha kwazinthu zamagulu osinthanitsa kutentha sikungathe kudalira mabuku azinthu wamba; iyenera kufanana ndi sing'anga yeniyeni yogwirira ntchito, kutentha, kuyika maganizo ndi kusayera kwa polojekitiyi. Kusankha aloyi molakwika kungayambitse dzimbiri msanga mu nthawi yaifupi kwambiri yautumiki, kapena kupangitsa kuti pakhale ndalama zambiri zosafunikira zomwe sizibweretsa phindu lenileni.
3.1 Zida Zoponyera Zitsulo Zosapanga dzimbiri zamadzi wamba komanso media zowononga pang'ono
Zida zoponyera zitsulo zosapanga dzimbiri ndi gulu lazinthu zomwe zimagwiritsidwa ntchito kwambiri pazinthu zosinthira kutentha m'madzi oyera, nthunzi, zosungunulira za organic komanso zochitika zamadzi zowononga mafakitale. 304 zitsulo zosapanga dzimbiri ndizoyenera kutentha kwabwino kwa madzi oyera ndi machitidwe osawononga kutentha kwapang'onopang'ono, koma osavomerezeka pazikhalidwe zautumiki pomwe chloride ion concentration imaposa 50ppm kuti igwire ntchito nthawi yayitali.
316L ndi 316LVM zitsulo zosapanga dzimbiri zosapanga dzimbiri zokhala ndi kaboni wocheperako zimapititsa patsogolo kukana kwa maenje ndi kukana kwa dzimbiri, zomwe zimawapanga kukhala chisankho chachikulu pazowotchera wamba wamba omwe amalumikizana ndi media zowononga pang'ono. Pazigawo zachitsulo zosapanga dzimbiri za 316L zimatha kukhala zokhazikika kwanthawi yayitali pa kutentha kosalekeza kogwira ntchito mpaka 300 ° C. Ngakhale kwa 316L, kuwonetsa kwanthawi yayitali kwa chloride yayikulu pamwamba pa 200ppm pa kutentha kokwera kudzawonjezera kwambiri chiopsezo cha dzimbiri ndi kupsinjika kwa dzimbiri. Malire omveka bwino ogwiritsira ntchitowa ayenera kufotokozedwa momveka bwino pamapangidwe, m'malo mongowonjezera zitsulo zosapanga dzimbiri kuzochitika zonse zowononga.
3.2 Zosankha zopangira nickel komanso aloyi apamwamba pazovuta kwambiri za dzimbiri
Sing'angayo ikamakhala ndi asidi amphamvu, chloride yayikulu kwambiri, yankho la mchere wotentha kwambiri kapena zinthu zina zowononga kwambiri zomwe chitsulo chosapanga dzimbiri sichingathe kupirira, ma aloyi opangidwa ndi nickel, zitsulo zosapanga dzimbiri za duplex ndi zida zina zosagwirizana ndi dzimbiri za aloyi zimakhala yankho lofunikira. Zidazi zimasunga kukhazikika kwa dzimbiri m'malo ovuta pomwe chitsulo chosapanga dzimbiri cha austenitic chimalephera mwachangu.
Zomwe zimagwiritsidwa ntchito ndizomwe zimaphatikizira kusinthanitsa kutentha mu makina osungunuka a sulfuric acid, makina obwezeretsa kutentha kwapamwamba kwambiri komanso mayunitsi osinthira kutentha omwe amagwiritsa ntchito zinthu zowononga zachilengedwe. Ngakhale kuti zinthu zoyamba ndi mtengo woponyera wa zigawo zazitsulo zotentha za aloyi ndizokwera kwambiri kuposa zitsulo zosapanga dzimbiri zosapanga dzimbiri, moyo wawo wautali wautumiki nthawi zambiri umachepetsa mtengo wamoyo wonse kwambiri, poyerekeza ndi kusinthidwa pafupipafupi kwa zida zosapanga dzimbiri zomwe zidalephera.
4. Mapangidwe a Gating System, Chithandizo cha Kutentha ndi Kuunika Kwambiri
Ngakhale mutasankha bwino zinthu komanso kapangidwe kabwino ka zinthu, kusachita bwino koponya kungasinthe chojambula choyenerera kukhala gawo lachiwongola dzanja lolakwika. Mapangidwe a gating system of heat exchanger castings akuyenera kuwonetsetsa kuti malo ovuta kwambiri amalimbitsa motsatizana kuyambira kumapeto mpaka kokwera, kupewa kupanga maiwe amadzimadzi amadzimadzi omwe amapanga shrinkage porosity yobisika mkati mwa gawolo. Pakupanga mapepala amtundu wokhuthala, kukula koyenera kokwera ndi kuzizira nthawi zambiri ndikofunikira kuti zitsimikizire kumveka kwamkati.
Kuchiza kutentha ndi sitepe ina yosayanjanitsika ya magawo osinthanitsa kutentha. Zoponyera zitsulo zosapanga dzimbiri ziyenera kudutsa muzitsulo zonse zikathiridwa, kuti zithetse mpweya wa chromium carbide pamalire a tirigu ndikubwezeretsa kukana kwa dzimbiri kwa intergranular. Pazinthu zazikulu zopangira zipolopolo zosinthira kutentha, chithandizo chodzipatulira chothandizira kutentha kwapang'onopang'ono pambuyo pokonza movutikira chimalimbikitsidwa kwambiri, kuti achotse nkhawa yayikulu yotsalira yomwe imasonkhanitsidwa pakuponya ndi kuziziritsa. Popanda kupsinjika koyenera, gawolo likhoza kuwonongeka kwambiri pambuyo pake kumaliza makina, kapenanso kukhala ndi ming'alu mosayembekezeka mutatumizidwa.
Kuyang'ana kwamphamvu ndiye chotchinga chomaliza chotchinga kutentha chisanachoke pafakitale. Zopangira zotenthetsera zowotchera m'mafakitale nthawi zambiri zimafunikira kuyesa ma hydraulic nthawi 1.5 kukakamiza kapangidwe kake, kenako ndikuyesa kulimba kwa mpweya mopanikizika ndi mapangidwe ndi njira yodziwira kutayikira. Pazigawo zosinthira kutentha zomwe zimagwiritsidwa ntchito muzapakati papoizoni, zoyaka kapena zolowera kwambiri, kuyesa kowonjezera kwa helium kumafunika nthawi zambiri kuonetsetsa kuti palibe njira yaying'ono yotayira yomwe singadziwike ndi mayeso wamba a hydraulic.
5. Zitsulo Zosapanga dzimbiri vs Nickel Alloy Heat Exchanger Parts: Kuyerekeza Kothandiza
Magulu ambiri a uinjiniya amakumana ndi lingaliro lofanana: kaya asankhe zida zoponyera zitsulo zosapanga dzimbiri kapena kukweza zida za nickel alloy heat exchanger projekiti inayake. Chisankhochi sichiyenera kupangidwa pongoyang'ana mtengo wogula woyambirira, komanso lingalirani magawo anayi ofunikira: mtengo wazinthu, zovuta zopanga, moyo wa dzimbiri woyembekezeredwa ndi nthawi yonse yokonzekera.
| Kuyerekeza Dimension | Zigawo Zosinthana ndi Zitsulo Zosapanga dzimbiri | Zida za Nickel Alloy Heat Exchanger |
| Mtengo Woyamba wa Zinthu | Zotsika mpaka zapakati, zopezeka kwambiri | Zokwera kwambiri, zopangira zopangira zimatengera nthawi yayitali |
| Kuponya & Kuvuta Kwa Machining | Okhwima ndondomeko, yosavuta kulamulira | Malo osungunuka kwambiri, okhwima ndondomeko amafunikira |
| Kukaniza kwa Corrosion mu Mild Medium | Zokwanira mokwanira | Kupitilira zomwe zimafunikira nthawi zambiri |
| Kukaniza kwa Corrosion mu Severe Medium | Kulephera kwakukulu, moyo waufupi wautumiki | Kukhazikika kwanthawi yayitali |
| Zochitika Zomwe Zimalimbikitsidwa | Madzi oyera, nthunzi, wofatsa organic sing'anga | Asidi wamphamvu, kloridi wochuluka, kutentha kwapakati kowononga sing'anga |
Kwa ma projekiti omwe ali ndi bajeti yochepa komanso mikhalidwe yofatsa yapakatikati, zida zoponyera zitsulo zosapanga dzimbiri zokhala ndi zokonzedwa bwino zimatha kukwaniritsa kale magwiridwe antchito odalirika. Koma ngati chitsulo chosapanga dzimbiri sichingakwaniritsidwe, kusankha mwachimbulimbuli chitsulo chosapanga dzimbiri kuti mupulumutse mtengo woyambira nthawi zambiri kumabweretsa mtengo wokwera kwambiri chifukwa cha kuzimitsa kosakonzekera, ngozi yotayikira komanso kusintha magawo pafupipafupi. Muzochitika izi, kuwonjezera ku zida za nickel alloy zosagwira dzimbiri ndiye kusankha mwaukadaulo komanso mwachuma.
6. Maupangiri Odziwikiratu Owononga Pamagawo Opanga Zinthu
Mavuto ambiri olephereka a kuwonongeka kwa magawo otenthetsera kutentha samayamba chifukwa cha kusankha kolakwika kwa zinthu, koma ndi kusagwira bwino pagawo lopanga. Mfundo yoyamba yothandiza ndikuchotsa mchenga wonse wotsalira, zipolopolo za ceramic ndi sikelo ya oxide kuchokera mkati ndi kunja pambuyo poponya. Zotsalira za silicate zotsalira pazitsulo zidzaphwanya filimuyi m'deralo ndikukhala poyambira kuthamangitsidwa kwa dzimbiri.
Yachiwiri yofunika nsonga ndi kuchotsa m'mbali zonse lakuthwa, zida zizindikiro ndi kupanikizika ndende zotsalira pambuyo Machining. Ngakhale kang'ono kakang'ono kakang'ono kosindikiza kosindikiza kapena pakhoma la njira yotuluka kumatha kukhala poyambira corrosion polumikizana ndi kupsinjika kwamanjenje ndi sing'anga yowononga. Lachitatu nsonga ndi kuchita yoyenera passivation mankhwala pa zosapanga dzimbiri kutentha exchanger zigawo pambuyo Machining komaliza. Kudumpha molakwika molakwika, kusakwanira nthawi yolumikizana kapena kusakwanira pambuyo pa chithandizo sikungathandizire kukhazikika kwa dzimbiri, ndipo kumatha kusiya mankhwala otsala owononga pamwamba omwe amathandizira kuti dzimbiri zisawonongeke.
7. Mafunso Ofunsidwa Kawirikawiri
- Q1: Kodi makulidwe ochepera a khoma omwe angakwaniritsidwe mokhazikika pamakina a njira zosinthira zotenthetsera?
A: Pazigawo zoponyera zitsulo zosapanga dzimbiri, makulidwe ochepera a khoma lamitundu yovuta yosinthira kutentha nthawi zambiri amakhala pafupifupi 6mm. Pazigawo zing'onozing'ono zowotchera kutentha, makulidwe a khoma mpaka 4mm atha kupezedwa pambuyo pakukhathamiritsa kwazomwe mukufuna, koma izi ziyenera kutsimikiziridwa poyambira mapangidwe kuti mupewe zofunikira zosafunikira. - Q2: Kodi magawo onse otenthetsera kutentha amafunikira 100% kuwunika kwathunthu kwa radiographic?
A: Osati onse. Kuchuluka ndi kuchuluka kwa kuyesa kosawononga kuyenera kutsimikiziridwa molingana ndi kuchuluka kwa kupanikizika, ngozi yapakatikati ndi ndondomeko yoyenera ya polojekiti. Kwa sing'anga yopanda poizoni, yosapsa ndi mphamvu yotsika kapena yapakatikati, kuyang'ana kwachitsanzo potengera magawo ovuta kumakhala kovomerezeka. Koma pazigawo zosinthira kutentha zomwe zimagwira ntchito yowopsa kwambiri, kuyang'ana kwathunthu kwa ma welds okhala ndi mphamvu ndi kuponya madera ovuta ndikofunikira. - Q3: Kodi zopangira zotenthetsera zitha kukonzedwa ndi kuwotcherera mutazindikira zolakwika zazing'ono zapamtunda?
A: Inde, koma njira yokonzera zowotcherera iyenera kuvomerezedwa molingana ndi zida zokakamiza, ndipo chithandizo chonse cha kutentha kwapambuyo pa weld ndikuwunika kobwerezabwereza kuyenera kumalizidwa mukakonza. Kukonza kuwotcherera kwachisawawa popanda njira yoyenera kudzayambitsa kupsinjika kwatsopano kotsalira ndi zolakwika zobisika zomwe ndizowopsa kuposa porosity yaying'ono yoyambirira.
8. Chidule Chachidule
Kudalirika kwa magawo otenthetsera kutentha sikunadziwike ndi sitepe imodzi, koma zotsatira zophatikizana za kapangidwe kake koyenera, kusankha kosagwirizana ndi dzimbiri, kamangidwe kabwino ka gating, chithandizo choyenera cha kutentha komanso kuyang'ana kolimba kwambiri. Zigawo zoponyera zitsulo zosapanga dzimbiri ndi njira yabwino kwambiri komanso yotsika mtengo kwambiri pamafakitale omwe amawononga dzimbiri, pomwe zida zopangira mafuta opangira nickel zimapereka chitetezo chofunikira kwanthawi yayitali pazikhalidwe zowononga kwambiri zomwe zitsulo zosapanga dzimbiri sizingathe kuzigwira.
Mwa kulabadira khoma makulidwe ofanana, kupewa unremovable zotsalira kuponyera mchenga, kuthetsa lakuthwa maganizo ndende mfundo ndi kuchita yoyenera pambuyo kuponyera passivation mankhwala mu gawo kupanga, inu mogwira kupewa ambiri ambiri msanga dzimbiri kulephera. Za makonda kutentha exchanger kuponya ntchito, kupanga zisankho zozikidwa pa kudalirika kwa moyo wonse m'malo mongogula mtengo woyambirira ndiyo njira yabwino kwambiri yochepetsera kutsika kosayembekezereka ndi mtengo wokonza pakugwira ntchito kwanthawi yayitali kwa mafakitale.
