Rarraba EPE Encapsulant Lamination Delamination: Siffar Layi
Teburin Abubuwan Ciki
Amsa mai sauri: Fim ɗin encapsulant na EPE, wanda kuma ake kira co-extruded POE encapsulant, fim ne mai Layer uku tare da tsakiyar polyolefin tsakanin fatun EVA. An gina shi ne don samun ƙarancin shigar danshi na POE da juriya ga PID ba tare da wahalar sarrafa POE ba, saboda fatun EVA suna manne da gilashi da backsheet kamar yadda encapsulant na al'ada yake yi. Rarrabuwar layi-layi a cikin module ɗin da aka lissafta da EPE yawanci tana komawa zuwa ɗaya daga cikin dalilai uku: rashin isasshen crosslinking a cikin Layer na tsakiya, gurɓata a saman gilashi ko backsheet da ke hana mannewa, ko zagayen lamination inda hawan zafin jiki ya bar fim ɗin ya gudana kafin tarin ya daidaita. Rarrabuwar layi-layi maimakon faci-faci ita kanta alama ce ta bincike — tana bin alkiblar gudanar encapsulant, wanda ke nuna zagayen lamination maimakon rukunin kayan.
PV Module Manufacturing · na Jerry, Ooitech
Gabatarwa: Menene EPE Abu mai rufewa Fim?
EPE encapsulant film, wanda kuma aka sani da co-extruded POE encapsulant, wani abu ne na encapsulation na photovoltaic da ake samarwa ta hanyar co-extruding POE resin da EVA resin. A cikin masana'antar samar da solar module, ana amfani da shi musamman don haɗa sauƙin sarrafa EVA tare da aikin hana danshi da juriya na PID na POE.
Fim ɗin EVA na al'ada ana amfani da shi sosai wajen samar da tsarin PV saboda yana ba da kyakkyawan aikin hana PID, yawan wucewar haske, juriya ga UV da launin rawaya saboda zafi da danshi, juriya ga hanyar katantanwa, da ƙarfin mannewa ga gilashi da backsheet. Duk da haka, EVA kuma yana da iyakoki, kamar ƙarancin aikin hana danshi, yawan wucewar tururin ruwa, da haɗarin PID mafi girma a wasu yanayin aiki.
Fim ɗin POE, idan aka kwatanta, yana da mafi kyawun shingen tururin ruwa, juriya mai ƙarfi ga yanayi, da kuma ingantaccen aikin anti-PID. Amma POE kuma yana da nasa ƙalubalen sarrafawa: mannewarsa ga gilashi da backsheet yawanci ya fi rauni fiye da EVA, halayen crosslinking yana da hankali, kuma a lokacin samar da module fim ɗin na iya zamewa ko motsawa cikin sauƙi, wanda zai iya rage ingancin samarwa.
Wannan shine dalilin da ya sa aka ƙirƙiri fim ɗin EPE. Ta hanyar tsarin co-extrusion, POE ana rufe shi da yadudduka na EVA, yana samar da tsarin EVA-POE-EVA sandwich. Wannan ƙira tana kiyaye babban shingen danshi na POE, yana taimakawa kare sel hasken rana daga tururin ruwa, yayin da kuma yana kiyaye kyakkyawan daidaitawar lamination da sauƙin sarrafawa na EVA. A cikin samarwa na yau da kullun, EPE na iya inganta amincin module da yawan samarwa idan an sarrafa kayan da tsarin lamination da kyau.
Hanyar Fasaha: Me yasa EPE Zai Iya Rarrabe Yayin Lamination
Ko da yake EPE yana haɗa fa'idodin EVA da POE, kayan biyu ba sa yin daidai ɗaya yayin lamination. Hanyoyin warkewarsu, halayen haɗin gwiwa, polarity, ikon shan ƙari, da halayen faɗaɗa zafi sun bambanta. Waɗannan bambance-bambance na iya haifar da rabuwar tsaka-tsaki da samuwar kumfa, musamman a kusa da solder ribbon wuraren da matsin gida da bambancin kauri suka fi bayyana.
EVA da POE suna da polarity daban-daban. EVA abu ne mai polarity, don haka yana da dacewa mai kyau da yawancin additives. POE ba shi da polarity sosai, don haka ikonsa na riƙe additives masu polarity ya bambanta. A tsawon lokacin ajiya, additives a cikin Layer POE na iya ƙaura zuwa Layers EVA, waɗanda ke da ƙarfin polarity da ikon sha.
Wannan ƙaurawar ƙari yana canza tsarin ciki da aikin fim ɗin EPE. Sakamakon haka, ƙarfin haɗi tsakanin yadudduka na POE da EVA na iya raguwa. A lokuta masu tsanani, yadin POE na iya matsewa, rabuwa, ko rabuwa a wani yanki yayin haɗa module. Wannan kuma yana ɗaya daga cikin dalilan da yasa rayuwar fim ɗin EPE gabaɗaya ta fi guntu fiye da fim ɗin EVA ɗaya ko POE ɗaya.
| Mahimmin Abubuwa | Tsari | Mummunan Lalacewa a Haɗa Module |
|---|---|---|
| Ƙaurawar Ƙari | Ƙari masu iyakantaccen abu kamar masu haɗa kai da masu daidaitawa suna ƙaura daga POE zuwa EVA a tsawon lokaci | Ƙananan matakin haɗa POE, raguwar haɗin kai, rabuwar tsaka-tsakin EPE |
| Rashin daidaiton saurin haɗa | EVA yawanci yana haɗa da sauri fiye da POE yayin haɗa | Yadin EVA yana ƙarfafa da wuri yayin da POE yana narkewa, yana haifar da rashin daidaiton damuwa tsakanin yadudduka |
| Bambancin ma'aunin faɗaɗa zafi | EVA da POE suna nuna bambancin faɗaɗa da raguwa bayan warkewa | Damuwa na ciki yayin sanyaya, yiwuwar rabuwa tsakanin yadudduka |
| Bambancin kauri na gida | Kaurin Layer na POE na iya zama mara daidaito a cikin shugabanci TD, ko kuma EPE ya zama sirara a gida kusa da ribbons da busbars | Rashin manne na gida, tara gas, kumfa masu siffar layi |
| Matsin haɗuwa na ribbon da busbar | Kaurin tari na gida ya fi girma a wuraren da ake siyarwa | Gudun encapsulant, rabuwa na gida, kumfa masu layi suna tashi daga wuraren ribbon |
Binciken Fasaha: Samuwar Kumfa Masu Siffar Layi Tare da Ribbons
Kumfa masu siffar layi da ke fitowa daga ribbons na siyarwa galibi suna da alaƙa da tasirin haɗin ƙaura na ƙari, saurin haɗin kai mara daidaituwa, da kuma halayen faɗaɗa zafi daban-daban tsakanin EVA da POE.
Yayin lamination, EVA yana haɗuwa da sauri fiye da POE. Idan Layer POE bai haɗu a lokaci ba, iskar gas da aka samar yayin bazuwar peroxide na iya rashin cikakken fitarwa kafin a yi matsin lamba. Wadannan iskar gas na iya kasancewa a cikin module kuma su samar da kumfa.
Wani dalili na yau da kullun shine raguwar kauri na fim ɗin EPE a wuraren ribbon da busbar. Tsakiyar Layer POE na EPE na iya samun rashin daidaituwa na kauri a cikin jagorar TD saboda abubuwan albarkatun ƙasa. Bugu da ƙari, yayin lamination, kauri mai ruɓi na ribbons da busbars yana ƙara matsa lamba na gida. Wannan na iya sa EPE ta yi rauni a wannan wuri, yana haifar da wuri mai rauni inda ƙarancin manne ko tara gas ya fi yiwuwa.
A taƙaice, yankin ribbon yana samun matsa lamba mafi girma yayin lamination. Idan yadudduka na EVA sun riga sun fara haɗuwa yayin da Layer POE kusa da ribbon har yanzu yana cikin yanayin gudana, tsarin EPE na iya rabuwa a gida. Raguwar encapsulant a wurin ribbon na iya yin hali kamar POE, tare da jinkirin haɗuwa da yawan kwarara. A ƙarƙashin matsa lamba na lamination, wannan na iya haifar da kumfa masu launi ko bayyanannu masu siffar layi suna bazuwa daga ribbon.
Mahimman alamomin tsari don kallo
Kumfa suna bayyana musamman tare da hanyoyin solder ribbon maimakon bazuwar a duk faɗin module.
Lalacewar na iya zama kamar siraran layin iska masu shimfiɗa daga yankunan ribbon ko busbar.
Matsalar na iya zama mafi bayyana idan an adana fim ɗin EPE na dogon lokaci.
Lalacewar na iya karuwa idan zafin lamination, lokacin vacuum, lokacin matsa lamba, ko matakin curing ba su dace da takamaiman tsarin EPE ba.
Shawarwari Masu Amfani don Sarrafa Lalacewar Lamination na EPE
Don kumfa da ke haifar da halayen kayan aikin EPE, mafita ya kamata ya haɗa da sarrafa kayan aiki da inganta tsarin lamination. Bai isa ba don daidaita siga ɗaya kawai ba tare da bincika yanayin ajiyar fim, lamination curve, da rarraba matsa lamba na yankin ribbon ba.
1. Sarrafa lokacin ajiyar kayan EPE
Shirya siyan kayan EPE da amfani da samarwa a hankali. A ƙarƙashin yanayin da ba a shafi samarwa ba, rage lokacin ajiyar fim ɗin EPE gwargwadon yiwuwa. Gajeren lokacin ajiya yana taimakawa rage ƙaura na additives daga Layer POE zuwa Layers EVA, yana kiyaye haɗin interlayer na asali da halayen crosslinking mafi karko.
2. Ɗaga zafin lamination na ɗakin farko yadda ya kamata
Ƙaruwa mai dacewa a zafin farko na lamination na ɗaki na farko na iya hanzarta haɗin POE a cikin fim ɗin EPE. Wannan yana taimakawa guje wa yanayin da EVA ta riga ta kai matsayi mai girma na haɗin yayin da POE ke ci gaba da narkewa. Kyakkyawan daidaitawa tsakanin maganin EVA da POE na iya rage damuwa tsakanin yadudduka kuma taimaka hana kumfa masu layi kusa da wuraren ribbon.
3. Daidaita vacuum, matsa lamba, da lokacin warkewa
Idan an yi matsa lamba da wuri yayin da POE ke ci gaba da zama ruwa, gas na iya kama ko tura shi ta wuraren ribbon. Tsarin lamination da aka tsara da kyau ya kamata ya ba da isasshen lokaci don fitar da iska da tausasawa kafin a yi cikakken matsa lamba. Ya kamata a tabbatar da saitin daidai ta gwaje-gwajen matakin haɗin, gwajin ƙarfin peel, da duba bayyanar bayan lamination.
4. Duba tsayin ribbon da busbar
Saboda matsa lamba na gida ya fi girma a kusa da ribbons da busbars, kauri mai yawa na tari na iya sa EPE ta zama sirara a waɗannan wuraren. Ƙungiyoyin samarwa ya kamata su duba daidaiton soldering, daidaiton ribbon, haɗin busbar, da daidaiton layup. Rage bambancin tsayin gida na iya rage haɗarin lalacewar encapsulant na gida da samuwar kumfa.
5. Tabbatar da ingancin EPE mai shigowa
Don fim ɗin EPE, binciken shigowa bai kamata ya duba kama da kauri kawai ba, amma kuma ya mai da hankali kan daidaiton kauri, tsawon rayuwa, yanayin ajiya, halayen gel, da aikin mannewa. Idan zai yiwu, ya kamata a yi gwajin lamination kafin samarwa da yawa yayin canza masu samarwa, batches, ko tsarin module.
Wannan blog ɗin ya dogara ne akan binciken rashin daidaituwa na aiki a cikin samar da module na PV da kuma nassoshi masu zuwa:
Kwarewar filin daga binciken lahani mara kyau yayin samar da module na photovoltaic
Dow Chemical, Zhang Wenxin, "POE Yana Ba da Module na Photovoltaic Mai Ƙarfi"
Southwest Securities, "N-Type Iteration, Masana'antar POE Ta Buɗe Zagayen Girma Mai Girma"
Samar da Sinadarai da Fasaha, "Bincike kan Halayen Crosslinking na Fim ɗin Polyolefin Encapsulant don Photovoltaics"
Ra'ayin Ooitech
A matsayin mai samar da kayan aiki, muna ganin haka: kumfa na layin ribbon da ke da alaƙa da EPE ba kawai batun kayan aiki ba ne, har ma da batun taga tsari wanda ya dogara da yanayin zafin lamination, ingancin vacuum, lokacin matsa lamba, da kuma daidaiton shimfidawa. Ga masu kera na'urori masu amfani da fasahar sel na ci gaba da manyan nau'ikan, juriyar kwararar encapsulant da tsayin tari na gida ya zama ƙarami sosai, don haka sarrafa rayuwar kayan aiki da tabbatar da girke-girke na lamination ya kamata a ɗauke su a matsayin wani ɓangare na tsarin inganci ɗaya. Layin samar da hasken rana mai tsayayye yana buƙatar zaɓin encapsulant mai kyau da kuma tabbatar da tsari mai ladabi kafin samarwa da yawa.
