CN104505976A - 一种分层固化储能飞轮及其制造方法 - Google Patents
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Abstract
本发明公开了一种分层固化储能飞轮及其制造方法,所述的飞轮包括轮毂和在轮毂的外圆侧缠绕的多层固化纤维层,第一纤维层的材料为玻璃纤维或者芳纶纤维,其余各层材料为高模量、高强度的碳纤维。所述的制造方法包括在轮毂的外圆侧依次缠绕多层固化纤维层;从第一纤维层至第十纤维层,各层依次缠绕、固化,基体采用环氧树脂;各层依次缠绕时,应施加一定的预应力。本发明结构合理、工艺简单,能够有效地提升飞轮的最大工作转速,飞轮储能密度高,不易发生径向层间分离。
Description
技术领域
本发明属于一种储能飞轮,具体涉及一种分层固化储能飞轮及其制造方法。
背景技术
飞轮储能技术具有快速充放电、瞬时功率大、效率高、寿命长、无污染的优点,是目前最具发展前景的物理储能方式之一。为了追求更高的储能密度,要求飞轮具有尽可能高的线速度,飞轮材料的发展经历了金属合金到复合材料两个阶段。
目前,金属合金如优质钢、高强铝合金的飞轮,在升速过程中环向应力容易超过环向强度导致飞轮结构破坏,复合材料如玻璃纤维增强树脂、碳纤维增强树脂的飞轮,在升速过程中径向应力容易超过径向强度导致飞轮径向开裂。为了利用复合材料轻质、高强的特点,同时克服飞轮径向强度较小的弱点,有学者提出过多层飞轮过盈装配结构,但是过盈装配工艺复杂、效率低、结构可靠性差。同时,由于飞轮储能密度与飞轮转动惯量正相关,飞轮靠近中心部分的质量对储能贡献不大。
发明内容
本发明为解决现有技术存在的问题而提出,其目的是提供一种分层固化储能飞轮及其制造方法。
本发明的技术方案是:一种分层固化储能飞轮,包括轮毂和在轮毂的外圆侧缠绕的多层固化纤维层,所述的轮毂包括外筒和内筒,在外筒和内筒之间设置有辐射状、均布的多个连接板,在内筒的内部形成轴孔,在轮毂的外圆侧依次缠绕第一纤维层、第二纤维层、至第十纤维层。
所述的轮毂、外筒、内筒和连接板的材料均选用优质钢或者高强铝合金。
所述的第一纤维层的材料为玻璃纤维或者芳纶纤维,其余各层材料为高模量、高强度的碳纤维。
一种分层固化储能飞轮的制造方法,包括以下步骤:
(i)首先制作轮毂,在外筒和内筒之间沿圆周焊接辐射状、均布的多个连接板;
(ⅱ)在轮毂的外圆侧依次缠绕多层固化纤维层,从第一纤维层开始至第十纤维层,每一层纤维的弹性模量均大于相邻内侧层的弹性模量;
(ⅲ)从第一纤维层至第十纤维层,各层依次缠绕、固化,基体采用环氧树脂,固化温度为80℃~150℃、固化时间为8~24小时,每层纤维层的厚度在20~40mm之间;
(ⅳ)各层依次缠绕时,应施加一定的预应力,纤维预施加的预应力由内向外逐层递减,预施加的预应力控制在50~200牛顿之间。
所述的第二纤维层至第十纤维层的材料分别为T-300、T-700、T-800、M35、M40、M45、M50、M55、M60。
本发明的有益效果为:
本发明结构合理、制作工艺简单,能够有效地提升飞轮的最大工作转速,飞轮储能密度高。比常规不分层飞轮,各层厚度小,层内径向应力水平低,不易发生径向层间分离,由于外侧层弹性模量大于相邻内侧层,飞轮层间不会发生松脱失效。飞轮中心采用轮毂结构,对储能密度影响较小的同时减轻了飞轮的质量。
附图说明
图1 是本发明分层固化储能飞轮的主视剖面图(图2中沿A-A线剖面);
图2 是本发明分层固化储能飞轮的俯视图。
其中:
1 飞轮轮毂 2 固化纤维层
2-1 第一纤维层 2-2 第二纤维层
2-9 第九纤维层 2-10 第十纤维层
3 外筒 4 内筒
5 连接板 6 轴孔。
具体实施方式
下面,结合附图和实施例对本发明的一种分层固化储能飞轮进行详细说明:
如图1、2所示,一种分层固化储能飞轮结构,包括轮毂1和在轮毂1的外圆侧缠绕的多层固化纤维层2,本发明共十层。其中,轮毂1包括外筒3和内筒4,在外筒3和内筒4之间设置有辐射状、均布的多个连接板5,本发明为八个。连接板5和外筒3和内筒4之间焊接连接,在内筒4的内部形成轴孔6,轮毂1、外筒3、内筒4和连接板5的材料均选用优质钢或者高强铝合金。
在轮毂1的外圆侧依次缠绕第一纤维层2-1、第二纤维层2-2、至第九纤维层2-9、第十纤维层2-10。
其中,第一纤维层2-1的材料为玻璃纤维或者芳纶纤维,其余各层材料为高模量、高强度的碳纤维。
一种分层固化储能飞轮的制造方法,包括以下步骤:
(i)首先制作轮毂1,在外筒3和内筒4之间沿圆周焊接辐射状、均布的多个连接板5,本发明为八个连接板5,轮毂1、外筒3、内筒4和连接板5的材料均选用优质钢或者高强铝合金。
(ⅱ)在轮毂1的外圆侧依次缠绕多层固化纤维层2,从第一纤维层2-1开始至第十纤维层2-10,其中第一纤维层2-1的材料为玻璃纤维或者芳纶纤维,其余各层材料均为高模量、高强度的碳纤维。
(ⅲ)从第一纤维层2-1至第十纤维层2-10,各层依次缠绕、固化,基体采用环氧树脂,具体固化温度和时间可根据所采用的环氧树脂种类确定,一般固化温度为80℃~150℃、固化时间为8~24小时,每层纤维层的厚度在20~40mm之间,一般取30mm。
(ⅳ)各层依次缠绕时,应施加一定的预应力,纤维预施加的张力由内向外逐层递减,防止飞轮升速过程中各层间发生松脱失,施加的预应力大小可根据所采用的碳纤维种类确定,一般控制在50~200牛顿之间。
所述的第二纤维层2-2至第十纤维层2-10的材料分别为T-300、T-700、T-800、M35、M40、M45、M50、M55、M60,上述材料市售。
本发明结构合理、制作工艺简单,能够有效地提升飞轮的最大工作转速,飞轮储能密度高。比常规不分层飞轮,各层厚度小,层内径向应力水平低,不易发生层内径向开裂,由于外侧层弹性模量大于相邻内侧层,飞轮层间不会发生松脱失效。飞轮中心采用轮毂结构,对储能密度影响较小的同时减轻了飞轮的质量。
Claims (5)
1.一种分层固化储能飞轮,包括轮毂(1)和在轮毂(1)的外圆侧缠绕的多层固化纤维层(2),其特征在于:所述的轮毂(1)包括外筒(3)和内筒(4),在外筒(3)和内筒(4)之间设置有辐射状、均布的多个连接板(5),在内筒(4)的内部形成轴孔(6),在轮毂(1)的外圆侧依次缠绕第一纤维层(2-1)、第二纤维层(2-2)、至第十纤维层(2-10)。
2.根据权利要求1所述的一种分层固化储能飞轮,其特征在于:所述的轮毂(1)、外筒(3)、内筒(4)和连接板(5)的材料均选用优质钢或者高强铝合金。
3.根据权利要求1所述的一种分层固化储能飞轮,其特征在于:所述的第一纤维层(2-1)的材料为玻璃纤维或者芳纶纤维,其余各层材料为高模量、高强度的碳纤维。
4.按照权利要求1所述的分层固化储能飞轮的制造方法,其特征在于:包括以下步骤:
(i)首先制作轮毂(1),在外筒(3)和内筒(4)之间沿圆周焊接辐射状、均布的多个连接板(5);
(ⅱ)在轮毂1的外圆侧依次缠绕多层固化纤维层(2),从第一纤维层(2-1)开始至第十纤维层(2-10),每一层纤维的弹性模量均大于相邻内侧层的弹性模量;
(ⅲ)从第一纤维层(2-1)至第十纤维层(2-10),各层依次缠绕、固化,基体采用环氧树脂,固化温度为80℃~150℃、固化时间为8~24小时,每层纤维层的厚度在20~40mm之间;
(ⅳ)各层依次缠绕时,应施加一定的预应力,纤维预施加的预应力由内向外逐层递减,预施加的预应力控制在50~200牛顿之间。
5.根据权利要求4所述的分层固化储能飞轮的制造方法,其特征在于:所述的第二纤维层(2-2)至第十纤维层(2-10)的材料分别为T-300、T-700、T-800、M35、M40、M45、M50、M55、M60。
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Cited By (10)
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CN106523595A (zh) * | 2015-09-11 | 2017-03-22 | 熵零股份有限公司 | 一种全载荷飞轮 |
CN107910979A (zh) * | 2017-12-26 | 2018-04-13 | 盾石磁能科技有限责任公司 | 高速磁悬浮飞轮储能装置 |
CN108321977A (zh) * | 2018-03-06 | 2018-07-24 | 广东电网有限责任公司电力科学研究院 | 一种分瓣圆环壳合金轮毂组合储能飞轮 |
CN109079434A (zh) * | 2018-08-09 | 2018-12-25 | 蒋福机 | 一种捆绑式引导轮的制作方法 |
CN110259886A (zh) * | 2019-05-20 | 2019-09-20 | 清华大学 | 用于飞轮转子上的轮缘及飞轮转子 |
CN111435807A (zh) * | 2019-01-14 | 2020-07-21 | 坎德拉(深圳)科技创新有限公司 | 飞轮储能装置及径向磁轴承 |
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CN111946775A (zh) * | 2019-05-15 | 2020-11-17 | 深圳市中科金朗产业研究院有限公司 | 飞轮外圈及飞轮本体 |
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CN113595322A (zh) * | 2021-07-29 | 2021-11-02 | 中国科学院工程热物理研究所 | 一种防脱离的飞轮结构及飞轮储能系统 |
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