大型风电叶片一体在线真空灌注技术与应用

APPLICATION OF INTEGRATED ONLINE RESIN INFUSION MOULDING TECHNOLOGY FOR LARGE WIND TURBINE BLADES

随着风火同价时代的到来,风电机组兆瓦数及其扫风面积不断增大,叶片设计轻量化、大型化愈发明显,对真空灌注提出了更高的要求和挑战。常规真空灌注技术在用工、质量、成本、节能减排等方面存在较大改进空间,且叶片越大真空灌注质量风险及成本越高,叶片制造工厂急需一种技术领先、质量可靠、成本更优的风电叶片真空灌注技术。本文介绍了一体在线真空灌注技术在大型风电叶片成型工艺中的应用,对比其与常规真空灌注技术的优势所在,证明了该技术具有更高的应用价值。实践表明:与常规技术相比,该技术在人员配置上可减少33%,灌注缺陷降低80%,树脂成本每支节约60 kg,并实现了自动化连续在线出胶,具有较高的工程应用价值。

With the advent of the era of the same price of wind power and thermal power,the capacity and sweeping area of wind turbines have been increasing,and the light-weight&large-scale wind turbine blades are becoming more and more popular which poses a higher challenge to the resin infusion moulding(RIM)technology.There is a big gap in labor,quality,cost,energy conservation and emission reduction of conventional RIM technology.The larger the blade,the higher the quality risk and cost,therefore blade manufacturing plants urgently need a new RIM technology suitable for light-weight&large-scale blades to support quality improvement,efficiency increase and cost reduction.This article introduces the application of integrated online RIM technology in moulding process of large wind turbine blades,and compares its advantages with conventional RIM technology.Evidence proves the higher application value of this technology in combination with the conventional RIM technology.Production practice shows that the integrated on-line RIM technology with auto-mixing function reduces the staffing by 33%,reduces the single-blade infusion defect quantity by 80%,and reduces the single-blade resin consumption by 60 kg,which has higher engineering application value.