CN112029396A - 一种电力设备用导热散热涂层 - Google Patents

一种电力设备用导热散热涂层 Download PDF

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CN112029396A
CN112029396A CN202010800592.0A CN202010800592A CN112029396A CN 112029396 A CN112029396 A CN 112029396A CN 202010800592 A CN202010800592 A CN 202010800592A CN 112029396 A CN112029396 A CN 112029396A
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秦海峰
陆洪彬
陈婷婷
朱西挺
郭其阳
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Nantong Tongcheng Electric Power Equipment Manufacturing Co ltd
Nantong University
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Nantong University
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Abstract

本发明公开了一种电力设备用导热散热涂层，该导热散热涂层的制备方法包括以下步骤：称量一定量片状铝粉(石墨、二氧化钛、碳化硅、氧化锌均取等量)，并加入适量乙酸丁酯在室温下搅拌混匀；按固含量质量比1：1称取聚氨酯树脂组分A和组分B一定量于上述混合物，搅匀分散；上述混合液超声5～10min后，调节粘度；另在混合液中加入质量百分含量0.5％KH560和NSF163作为对比，超声5～10min后，调节粘度；将涂层喷涂至基板或罐体，室温表干12h后于50℃下24h固化，本发明能使得CNTs在制备的涂层中具有规整方向排布，将会使得涂层的导热性能大大提升，甚至可以代替其中的导热填料粒子进行填充。

Description

一种电力设备用导热散热涂层
技术领域
本发明涉及散热涂层技术领域，具体为一种电力设备用导热散热涂层。
背景技术
油浸变压器主要由铁芯、绕组、油枕、油箱、绝缘套管、分接开关和气体继电器等元件和器件组成，是工业、民用供配电系统中非常重要的设备。铁芯属于变压器磁路部分，在变压器使用中会产生涡流损耗和磁滞损耗，进而产生热量。若采用0.35mm以下的冷轧晶粒取向硅钢片的铁芯，由于其具备较高的导磁系数，除可降低重量和体积外，还能够有效降低发热损耗。
油浸变压器铁芯中中，通常设置冷却油道，变压器油介质在冷却油道内循环过程中可将由铁芯损耗产生的热量带走。变压器中的另一核心元件绕组存在一定电阻或接触电阻，故其在工作时也会电流通过，从而产热。铁芯和绕组两元件的致热，成为变压器油的主要热量来源。为以达到良好的冷却效果，铁芯中一般会设有冷却油道，使得大容量变压器中铁芯损耗产生的热量能够被绝缘油介质在循环时充分带走。绕组和铁芯都是变压器的非常重要的内部元件。由于绕组本身有电阻或接头处有接触电阻，工作电流通过时绕组会产生热量，因此为使得绕组能长时间，其工作电流需加以控制在额定电流以内，油浸变压器在正常工作时，绕组和铁芯产生的的热量会传递给变压器油介质，然后传递至器件表面，通过涂层散热。不同容量的油浸变压器，按
其冷却方式分为如下几类：
1.自然油循环自然冷却(油浸自冷式)
2.自然油循环风冷(油浸风冷式)
3.强迫油循环水冷却
4.强迫油循环风冷却
5.通用使用条件冷却
6.海拔小于1000m户内或户外型
7.最高环境气温40℃，最高日平均温度+30℃类
8.最高年平均温度20℃，最低气温-25℃类
太阳能量辐射至地球，其中的致热电磁波主要为可见光电磁波和近红外电磁波，这些电磁波辐射至物体表面被吸收后，热量发生累积从而使物体表面温度升高。户外变压器在使用过程中，由于长时间暴露在太阳光下，外壳表面会吸收太阳辐射热量，使得变压器表面的温度升高，吸收的热量累积后还会传递至器件内部进一步使得内介质温升。并且变压器在工作过程中，由于内部铁芯和绕组等元件运行而产生热量，变压器内导热介质也随之升温。变压器介质由于两种途径的持续累积升温，会有可能达到内部元件的临界耐受温度，从而使其无法工作失效。故油浸变压器用光谱选择性导热散热涂层的制备及性能研究。
发明内容
本发明提供如下技术方案：一种电力设备用导热散热涂层，该散热涂层由以下重量份计的各组分组成：石墨(C)20-30份、碳化硅(SiC)6-8份、氧化锌(Zn O)1-5份、氧化铋(Bi2O3)0.1-0.5份、1-6份氧化铈(CeO2)、氧化镍(NiO)3-9份、氧化铬(Cr2O3)0.2-0.6份、氧化铌(Nb2O5)0.2-0.8 份、氧化铝(Al2O3)2-4份、氧化钼(MoO3)0.6-1.0份、二氧化锰(MnO2)1-3份、二氧化锡(SnO2)0.8-1.6份、四氧化三铅(Pb3O4)0.2-0.6份、二氧化钛(Ti O2)0.2-0.9份、片状铝粉5-9份、聚氨酯PU10-13份、固化剂 0.5-0.9份、乙酸丁酯1-7份、乙醇20-50份。
一种电力设备用导热散热涂层，该导热散热涂层的制备方法包括以下步骤：
步骤一、称量一定量片状铝粉(石墨、二氧化钛、碳化硅、氧化锌均取等量)，并加入适量乙酸丁酯在室温下搅拌混匀；
步骤二、按固含量质量比1：1称取聚氨酯树脂组分A和组分B一定量于上述混合物，搅匀分散；
步骤三、上述混合液超声5～10min后，调节粘度；
步骤四、另在混合液中加入质量百分含量0.5％KH560和NSF163作为对比，超声5～10min后，调节粘度；
步骤五、将涂层喷涂至基板或罐体，室温表干12h后于50℃下24h固化。
优选的，导热散热涂层由以下组分组成：石墨(C)20份、碳化硅(SiC) 6份、氧化锌(Zn O)2份、氧化铋(Bi2O3)0.1份、氧化铈(CeO2)4份、氧化镍(NiO)5份、氧化铬(Cr2O3)0.5份、氧化铌(Nb2O5)0.6份、氧化铝(Al2O3)3份、氧化钼(MoO3)0.8份、二氧化锰(MnO2)2份、二氧化锡(SnO2)1.0份、四氧化三铅(Pb3O4)0.5份、二氧化钛(Ti O2)0.7份、片状铝粉8份、聚氨酯PU11份、固化剂0.7份、乙酸丁酯4份、乙醇30份。与现有技术对比，本发明具备以下有益效果：本发明能使得CNTs在制备的涂层中具有规整方向排布，将会使得涂层的导热性能大大提升，甚至可以代替其中的导热填料粒子进行填充。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
一种电力设备用导热散热涂层，该散热涂层由以下重量份计的各组分组成：石墨(C)20-30份、碳化硅(SiC)6-8份、氧化锌(Zn O)1-5份、氧化铋(Bi2O3)0.1-0.5份、1-6份氧化铈(CeO2)、氧化镍(NiO)3-9份、氧化铬(Cr2O3)0.2-0.6份、氧化铌(Nb2O5)0.2-0.8份、氧化铝(Al2O3) 2-4份、氧化钼(MoO3)0.6-1.0份、二氧化锰(MnO2)1-3份、二氧化锡(SnO2)0.8-1.6份、四氧化三铅(Pb3O4)0.2-0.6份、二氧化钛(Ti O2)0.2-0.9 份、片状铝粉5-9份、聚氨酯PU10-13份、固化剂0.5-0.9份、乙酸丁酯1-7 份、乙醇20-50份。
一种电力设备用导热散热涂层，该导热散热涂层的制备方法包括以下步骤：
步骤一、称量一定量片状铝粉(石墨、二氧化钛、碳化硅、氧化锌均取等量)，并加入适量乙酸丁酯在室温下搅拌混匀；
步骤二、按固含量质量比1：1称取聚氨酯树脂组分A和组分B一定量于上述混合物，搅匀分散；
步骤三、上述混合液超声5～10min后，调节粘度；
步骤四、另在混合液中加入质量百分含量0.5％KH560和NSF163作为对比，超声5～10min后，调节粘度；
步骤五、将涂层喷涂至基板或罐体，室温表干12h后于50℃下24h固化。
导热散热涂层由以下组分组成：石墨(C)20份、碳化硅(SiC)6份、氧化锌(Zn O)2份、氧化铋(Bi2O3)0.1份、氧化铈(CeO2)4份、氧化镍 (NiO)5份、氧化铬(Cr2O3)0.5份、氧化铌(Nb2O5)0.6份、氧化铝(Al2O3) 3份、氧化钼(MoO3)0.8份、二氧化锰(MnO2)2份、二氧化锡(SnO2)1.0 份、四氧化三铅(Pb3O4)0.5份、二氧化钛(Ti O2)0.7份、片状铝粉8份、聚氨酯PU11份、固化剂0.7份、乙酸丁酯4份、乙醇30份。
所需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (3)

1.一种电力设备用导热散热涂层，其特征在于，该散热涂层由以下重量份计的各组分组成：石墨(C)20-30份、碳化硅(SiC)6-8份、氧化锌(Zn O)1-5份、氧化铋(Bi2O3)0.1-0.5份、1-6份氧化铈(CeO2)、氧化镍(NiO)3-9份、氧化铬(Cr2O3)0.2-0.6份、氧化铌(Nb2O5)0.2-0.8份、氧化铝(Al2O3)2-4份、氧化钼(MoO3)0.6-1.0份、二氧化锰(MnO2)1-3份、二氧化锡(SnO2)0.8-1.6份、四氧化三铅(Pb3O4)0.2-0.6份、二氧化钛(Ti O2)0.2-0.9份、片状铝粉5-9份、聚氨酯PU10-13份、固化剂0.5-0.9份、乙酸丁酯1-7份、乙醇20-50份。
2.根据权利要求1所述的一种电力设备用导热散热涂层，其特征在于：该导热散热涂层的制备方法包括以下步骤：
步骤一、称量一定量片状铝粉(石墨、二氧化钛、碳化硅、氧化锌均取等量)，并加入适量乙酸丁酯在室温下搅拌混匀；
步骤二、按固含量质量比1：1称取聚氨酯树脂组分A和组分B一定量于上述混合物，搅匀分散；
步骤三、上述混合液超声5～10min后，调节粘度；
步骤四、另在混合液中加入质量百分含量0.5％KH560和NSF163作为对比，超声5～10min后，调节粘度；
步骤五、将涂层喷涂至基板或罐体，室温表干12h后于50℃下24h固化。
3.根据权利要求1所述的一种电力设备用导热散热涂层，其特征在于：优选的，导热散热涂层由以下组分组成：石墨(C)20份、碳化硅(SiC)6份、氧化锌(Zn O)2份、氧化铋(Bi2O3)0.1份、氧化铈(CeO2)4份、氧化镍(NiO)5份、氧化铬(Cr2O3)0.5份、氧化铌(Nb2O5)0.6份、氧化铝(Al2O3)3份、氧化钼(MoO3)0.8份、二氧化锰(MnO2)2份、二氧化锡(SnO2)1.0份、四氧化三铅(Pb3O4)0.5份、二氧化钛(Ti O2)0.7份、片状铝粉8份、聚氨酯PU11份、固化剂0.7份、乙酸丁酯4份、乙醇30份。
CN202010800592.0A 2020-08-11 2020-08-11 一种电力设备用导热散热涂层 Pending CN112029396A (zh)

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* Cited by examiner, † Cited by third party
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CN105219220A (zh) * 2015-10-19 2016-01-06 国网浙江省电力公司湖州供电公司 一种新型高导热纳米辐射散热涂料及其制备方法
CN105949903A (zh) * 2016-06-12 2016-09-21 上海大学 一种高效散热涂料及其应用方法
CN107529540A (zh) * 2017-10-16 2018-01-02 普罗旺斯科技（深圳）有限公司 一种散热涂层及其制备方法
CN108219718A (zh) * 2018-02-26 2018-06-29 合肥思博特软件开发有限公司 一种用于电子产品散热的导热胶
KR20180129192A (ko) * 2017-05-25 2018-12-05 주식회사 알파머티리얼즈 히트 스프레더

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219220A (zh) * 2015-10-19 2016-01-06 国网浙江省电力公司湖州供电公司 一种新型高导热纳米辐射散热涂料及其制备方法
CN105949903A (zh) * 2016-06-12 2016-09-21 上海大学 一种高效散热涂料及其应用方法
KR20180129192A (ko) * 2017-05-25 2018-12-05 주식회사 알파머티리얼즈 히트 스프레더
CN107529540A (zh) * 2017-10-16 2018-01-02 普罗旺斯科技（深圳）有限公司 一种散热涂层及其制备方法
CN108219718A (zh) * 2018-02-26 2018-06-29 合肥思博特软件开发有限公司 一种用于电子产品散热的导热胶

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