Cov Qauv Rail Splice Tsim rau Ntev -Span Solar Racking
A solar rail splice cov khoom sivHloov khoov, shear thiab kev sib tw ua ke ntawm cov kab sib txuas uas nyob ib sab thaum tso cai rau cov tsheb ciav hlau sib dhos kom haum rau thermal txav. Rau ntev - ncua PV arrays, qhov chaw sib txuas yuav tsum tau tsim los ua ib qho kev sib koom ua ke es tsis yog kho raws li ib qho yooj yim rail extension.
Ib tug kom raughnub ci mounting rail connectoryuav tsum tuav txoj kev tsheb ciav hlau, muab kev thauj mus los txaus, tsis txhob muaj kev txwv ntau dhau ntawm thermal expansion, thiab khaws cia txoj kev sib txuas hluav taws xob uas yuav tsum tau siv qhov system racking yog ib feem ntawm cov khoom siv hauv av.
Ntev -Span Solar Rail Joints thiab Stress Concentration
Lub hnub ci txoj kev tsheb ciav hlau ntev tau raug rov qab hloov pauv kub, cua siab, daus loading thiab installation kam rau ua. Aluminium rails muaj cov coefficient siab ntawm thermal expansion, yog li txoj kev tsheb ciav hlau ntev ntev tuaj yeem muaj qhov ntsuas qhov txav ntawm qhov kub thiab txias ua haujlwm.
Hauv kev sib txuas, ntau lub zog tuaj yeem cuam tshuam:
- Khoov lub sij hawm los ntawm module thiab cua loads
- Shear quab yuam pauv ntawm cov kab uas nyob ib sab
- Local bearing stress nyob ib ncig ntawm connector fasteners
- Thermal expansion thiab contraction
- Kev sib hloov ntawm txoj kev tsheb ciav hlau tshwm sim los ntawm kev txhawb nqa tsis sib xws
- Qhov sib txawv txav ntawm lub ru tsev txuas thiab ntsia
Yog li ntawd, lub splice yuav tsum tau positioned raws li cov qauv kev xam es tsis yooj yim ntsia ntawm qhov yooj yim tshaj plaws rail qhov chaw.
Rau qhov ntev -span hnub ci racking, kev tshuaj xyuas engineering yuav tsum tsim kom muaj cov hauv qab no:
| Tsim Parameter | Kev xav txog engineering |
|---|---|
| Rail profile | Ntu geometry, phab ntsa thickness thiab lub sij hawm ntawm inertia |
| Rail khoom | Feem ntau AL6005-T5 txhuas |
| Rail ncua | Kev ncua deb ntawm lub ru tsev lossis hauv av txhawb nqa |
| Splice txoj hauj lwm | Txiav txim siab los ntawm kev khoov thiab kev txhawb nqa |
| Cua load | Qhov project- tshwj xeeb; AS/NZS 1170.2 tuaj yeem siv tau |
| Daus load | Qhov project- xam qhov chaw tshwj xeeb |
| Fasteners | SUS304 los yog teev cov txheej txheem fastener qib |
| Connector kev koom tes | Txhais los ntawm rail profile thiab connector geometry |
| Thermal txav | Muab xam los ntawm txoj kab ntev thiab qhov kub thiab txias |
| Txoj kev hauv av | Txheeb xyuas raws li qhov ua tiav racking tsim |
Ib qho kev sib txuas uas tsim nyog rau ib qho kev tsheb ciav hlau luv luv yuav tsis muab qhov kev ua tau zoo ib yam thaum siv ntau zaus hla ib txoj kab tsheb ciav hlau ntev. Kev sib txuas ntev, kev teeb tsa thiab kev sib txuas ntawm txoj kab tsheb ciav hlau yuav tsum tau tshuaj xyuas ua ke nrog kev tsheb ciav hlau hla -section.
Internal Solar Rail Splice Connectors thiab Expansion Joint Design
Ib sab hauvsolar rail splice connectorfeem ntau yog muab tso rau hauv lub hollow seem ntawm ob txoj kab uas nyob ib sab. Lub connector muab kev tswj txhua yam kev koom tes thaum ua kom lub sab nrauv rail nto muaj rau PV module clamps.
Lub connector geometry yuav tsum sib haum rau hauv cov kab noj hniav rail kab noj hniav. Kev tshem tawm ntau dhau tuaj yeem tso cai rau kev tsheb ciav hlau thiab kev sib koom ua ke, thaum kev tshem tawm tsis txaus tuaj yeem cuam tshuam kev teeb tsa thiab txwv tsis pub thermal txav.
Rau kev sib dhos ntev rail, peb qhov ntev yuav tsum tau saib xyuas tshwj xeeb:
1.Insertion ntev- yuav tsum muaj kev koom tes txaus ntawm ob qho kev tsheb ciav hlau.
2.Fastener qhov chaw- fasteners yuav tsum tsis txhob cuam tshuam nrog kev nthuav dav ntawm txoj kev tsheb ciav hlau lossis tsim kev ntxhov siab hauv zos.
3.Qhov sib txawv- qhov sib txawv yuav tsum ua raws li cov txheej txheem ntsuas thermal txav ntawm qhov yuav tsum tau ua.
Thermal Expansion nyob rau hauv Aluminium Solar Rails
Qhov kwv yees thermal expansion ntawm aluminium rail tuaj yeem suav nrog:
ΔL = × L × ΔT
Qhov twg:
- ΔL= hloov nyob rau hauv txoj kab ntev
- = coefficient ntawm thermal expansion
- L= thawj rail length
- ΔT= kub variation
Rau txhuas, feem ntau siv engineering tus nqi rau kev xam ua ntej yog kwv yees li23 × 10⁻⁶ / degree. Qhov kawg tus nqi thiab tsim qhov kub thiab txias yuav tsum ua raws li cov ntaub ntawv teev tseg ntawm aluminium alloy thiab qhov project tsim.
Piv txwv li, 20 m aluminium rail raug rau 60℃kub qhov sib txawv tuaj yeem muaj kwv yees li:
23 × 10⁻⁶ × 20 × 60 ≈ 27.6 hli
Hook:Tshawb xyuas koj qhov ntev - ncua kev tsheb nqaj hlau sib koom ua ntej rov ua dua kev teeb tsa.
Thov Solar Rail Splice Engineering Review
Lub zog thiab Load Transfer ntawm Solar Mounting Rail Connectors
A hnub ci mounting rail connectoryuav tsum tau hloov lub zog tsim tawm ntawm txoj kev tsheb ciav hlau tsis ua rau lub zos deformation ntau dhau.
Qhov tseem ceeb tshaj plaws kev kuaj xyuas ib txwm muaj xws li:
1.Khoov Load Transfer
Lub tsheb ciav hlau nqa cov khoom thauj los ntawm PV modules rau hauv lub ru tsev txuas, kev txhawb nqa hauv av lossis lwm cov ntsiab lus txuas. Lub splice yuav tsum muaj kev tiv thaiv txaus tiv thaiv hauv zos dabtsi yog khoov thiab rail rotation.
2.Shear Hloov
Cua uplift thiab downward siab tuaj yeem tsim shear quab yuam raws txoj kev tsheb ciav hlau. Kev sib koom ua ke thiab lub peev xwm fastener yuav tsum raug kuaj xyuas los ntawm kev suav tsim shear.
3.Local Bearing Stress
Cov connector thiab fasteners qhia concentrated rog rau hauv aluminium rail. Kev ntxhov siab ntau dhau tuaj yeem ua rau lub tsheb ciav hlau nyob ib ncig ntawm lub qhov fastener thiab txo qhov sib koom ua ke.
4.ull-Out thiab Fastener Capacity
Lub peev xwm fastener yuav tsum raug ntsuas raws li cov khoom siv fastener xaiv, txoj kab uas hla, xov configuration thiab rail geometry. SUS304 fasteners feem ntau yog siv rau corrosion-cov khoom siv hluav taws xob tiv thaiv hnub ci, tab sis cov txheej txheem suav yuav tsum txheeb xyuas qhov xav tau ntawm qhov project.
5.Rail Deflection
Lub splice yuav tsum tsis txhob raug soj ntsuam ntawm nws tus kheej los ntawm tag nrho cov rail system. Rail ncua, txhawb kev sib nrug, module thauj khoom thiab cua siab tag nrho cuam tshuam rau qhov tshwm sim deflection.
Rau tej yaam num tsim nyob rau hauvAS/NZS 1170.2, cua yuav tsum tau tsim los ntawm qhov project qhov chaw thiab lub tsev los yog array yam ntxwv es tsis muab ib tug generic nqi cua rau txhua installation.
Xaus: Tsim Kev Txuas Txuas Hnub Ci Rail Junction
A nruam solar rail junctionyog cov qauv thiab kev teeb tsa-tswj taw tes nyob rau hauv ntev - ncua PV mounting system. Lub splice yuav tsum muab cov neeg kho tshuab thauj khoom txaus hloov thaum tso cai rau kev ntsuas thermal txav ntawm aluminium rail sib dhos.
Rau pawg neeg yuav khoom, cov kev kuaj xyuas tseem ceeb tsis txwv rau cov nqi sib txuas lossis kev sib tw nominal rail. Rail profile sib txuam, kev sib koom ua ke, kev sib txuas lus tshwj xeeb, kev nthuav dav ntxiv, kev txhim kho corrosion thiab kev txuas ntxiv hauv av yuav tsum tau lees paub ua ntej ntau lawm.
FAQ: Hnub Ci Rail Splice Engineering thiab Kev Muag Khoom
Yuav ua li cas yuav tsum tau ib tug solar rail splice cov khoom siv nyob rau hauv ib tug ntev PV rail?
Txoj hauj lwm splice yuav tsum ua raws li cov txheej txheem suav, txhawb kev sib nrug thiab kev tsheb nqaj hlau khoov profile. Tsis txhob tso cov pob qij txha nkaus xwb rau kev tsim khoom yooj yim. Tus qauv tsim yuav tsum suav nrog kev nthuav dav thermal thiab qhov yuav tsum tau muaj kev tsheb ciav hlau txav mus los.
Lub hnub ci mounting rail txuas puas tuaj yeem muab kev txuas ntxiv hauv av?
Tsis tau. Kev sib txuas ntawm kev sib txuas tsis tau lees tias kev sib txuas hluav taws xob, tshwj xeeb nrog cov anodized aluminium nto. Yog hais tias txoj kev tsheb ciav hlau ua ib feem ntawm lub hauv paus system, hluav taws xob txuas ntxiv yuav tsum tau txheeb xyuas los ntawm kev siv cov khoom sib txuas los yog txoj hauv av.
Yuav ua li cas cov ntaub ntawv yuav tsum tau rau bulk solar rail splice ntau lawm?
Muab cov rail extrusion daim duab, sab hauv kab noj hniav qhov ntev, rail ntev, txhawb kev sib nrug, fastener specification, project cua thiab daus loads, kub ntau yam, grounding method thiab yuav tsum tau kom muaj nuj nqis. Cov khoom siv no tso cai rau qhov sib txuas qhov ntev thiab kev sib koom ua ke kom sib luag ua ntej tsim khoom.