CN1961382A - 向导体上施加钝化剂的方法和装置 - Google Patents
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Abstract
一种向油中施加添加剂的方法,其中添加剂储存器提供在油中。
Description
技术领域
本发明涉及向电力变压器中的导体上施加钝化剂的方法和装置。
发明内容
向电力变压器中的导体上施加钝化剂的方法。提供了钝化剂储存器。
向电力变压器中的导体上施加钝化剂的结构。所述结构包括浸入在油中的导体。在导体周围进行绝缘布置。包含钝化剂的储存器浸入在油中。
其它目的和优点以及示例性实施方案的结构和功能将从说明书、附图和实施例的描述中显而易见。
附图说明
本发明的前述和其它特征和优点将从下面附图中所示的对于本发明示例性实施方案的更具体描述中显而易见,其中类似的附图标记一般表示相同的、功能相似的和/或结构相似的元件。
图1表示示出根据本发明结构的实施方案的透视图的实例图;
图2表示示出图1中所示实施方案的横截面图的实例图;
图3表示示出根据本发明在导体上喷涂钝化剂或含有钝化剂的溶液的方法实施方案的透视图的实例图。
具体实施方式
下面详细描述本发明的实施方案。在描述实施方案的过程中,为清楚起见采用特定术语。然而,本发明不应受限于所选择的特定术语。在讨论具体实施方案时,应当理解这仅仅是为了说明的目的。相关领域的技术人员将认识到可以在不背离本发明的精神和范围的情况下使用其它部件和构造形式。
在电力变压器中,通常将铜钝化剂加入到油中。然而,该钝化剂通常被铜表面所吸附,使得该钝化剂不易与侵蚀性油组分反应。结果,较少的铜被油所溶解。
一些钝化剂还通常以溶解状态保留在油中,与溶解的铜形成稳定的络合物。这导致使溶解的铜减活并降低其对于油的氧化作用的催化效应。然而,该钝化剂是缓慢消耗的。
本发明为油中减少的钝化剂提供了解决方案。其中,本发明提供了向油中提供添加剂、具体而言为钝化剂的方法和结构。不是简单地向油中添加钝化剂,而是提供钝化剂储存器。所述储存器可以采取多种形式。通常,所述储存器包含提供在另一结构例如绝缘体或导体上的钝化剂。所述储存器还可以或者作为替代方案包含分离的结构,在其中和/或其上提供钝化剂。与向电力变压器提供钝化剂的已知技术相比,以根据本发明的方式提供钝化剂可以提供较好的长期效果。此外,在没有添加剂加入到绝缘油中的情况下,本发明使得钝化剂和可能的其它添加剂不违反这种要求。因而断定利用根据本发明的方法和结构,可以将除钝化剂之外的添加剂引入到电力变压器或其它装置中。
本发明的实施方案可以允许钝化剂提供在可能最需要它的位置处。例如,可以将钝化剂涂覆在导体的表面和/或导体上的绝缘体上。钝化剂易于溶解在油中也不是必需的。根据本发明提供钝化剂还可以使得变压器系统对于所使用的特定油而言更不敏感。例如,所述变压器可以在甚至当所述油含有一些腐蚀性(硫)组分时,经过良好钝化的导体将不受攻击的意义上更加不敏感。此外,本发明提供了与在漆或涂料中提供钝化剂相比更廉价的解决方案。例如,本发明提供了与任何漆面导体相比更廉价的解决方案。
钝化剂的储存器或储存库包含在电力变压器中。所述储存器或储存库可以多种不同的方式提供。例如,所述钝化剂可以涂覆至导体、绝缘体或电力变压器中的其它表面。作为替代方案或附加地,可以施加所述钝化剂而并入到电力变压器中的绝缘体或其它结构中。在这些方案中,可以将其它的结构加入到变压器中用作储存库或储存器。
本发明的一些将钝化剂涂覆至导体的实施方案可以称作“表面钝化”。这些实施方案可以包括将钝化剂涂覆至导体表面或其附近。所述钝化剂可以通过滴涂、喷涂和/或漆涂而涂覆至导体。所述钝化剂可以与一种或多种其它物质和/或溶剂混合。所述钝化剂可以加入到缠绕到导体上的覆盖纸(covering paper)中。作为替代方案,所述钝化剂物质可以涂覆至缠绕到导体上的覆盖纸的内层。根据一个实施方案,所述钝化剂可以在铜导体进入纸缠绕工艺时逐滴供给至铜导体。可以采用在导体表面附近获得高浓度的钝化剂物质的方法和布置。
根据本发明可以使用的钝化剂可以包括在油中具有高度溶解性和/或中度至低度溶解性的钝化剂。可溶于油中的钝化剂的实例包括N,N-双(2-乙基己基)-((1,2,4-三唑-1-基)甲基)胺)或苯并三唑类(例如N,N-双(2-乙基己基)-4-甲基-1H-苯并三唑-1-甲基胺)。在油中具有中度至低度溶解性的钝化剂的实例包括三唑类和苯并三唑类。三唑类和苯并三唑类可以不具有任何取代基。作为替代方案,三唑类和苯并三唑类可以具有短的烃链取代基,例如具有一至十个碳原子的取代基。也可以使用含有铜的钝化剂。其它钝化剂也可以使用,并且本领域技术人员不需进行额外试验就能够确定所要使用的恰当钝化剂。
如上所述,钝化剂的储存器或储存库可以提供在导体上。作为替代方案或者附加地,钝化剂可以施加到导体上的和/或浸入油中的其它结构上的绝缘体。例如,钝化剂可以涂覆至施加到导体上的固态绝缘体,例如纸绝缘体。可以在制造绝缘体和/或在将绝缘体施加到导体上时施加钝化剂。例如,绝缘体可以用钝化剂浸渍。还可以将钝化剂喷涂到绝缘体上。根据一个实施方案,在生产纸的造纸厂中在将纸缠绕成辊之前,将钝化剂施加到纸绝缘体上。如果钝化剂通过喷涂施加,那么可以使用喷雾器或其它任何喷涂工具。
钝化剂储存器或储存库还可以或者作为替代方案提供在与导体和绝缘体分离的结构上。例如,所述分离的结构可以是纤维素。所述分离的结构可以用钝化剂浸渍或者将钝化剂施加到所述结构的一个或多个表面上。随后可以将所述结构置于油中。根据一个实施方案,所述分离的结构包括置于主槽中的网孔壁料筒或冷却回路中的柱型料筒。在分离的结构中包含钝化剂的一个优点是减少或消除在有源部件加工过程中活性物质损失的风险。在分离的结构中包含钝化剂还使得分离的结构可以替换。所述分离的结构可以被保护性、隔离性结构包围,所述保护性、隔离性结构可以是有孔的。
图1描述了根据本发明结构的实施方案的透视图。在图1所示的实施方案中,用钝化剂浸渍的纸带1包裹在导体2周围。图2描述了图1中所示的实施方案的横截面图。绝缘体3的其余部分可以包裹在导体和纸带周围。绝缘体的其余部分可以包含或可以不包含钝化剂。区域4具有高浓度的钝化剂,与导体表面邻接。
图3描述了根据本发明方法的实施方案的透视图,包括将钝化剂或含有钝化剂的溶液喷涂到导体上。在该实施方案中,钝化剂或溶液的喷雾5通过喷嘴6形成,所述喷嘴使喷雾对准导体7。钝化剂或溶液可以通过喷涂、漆涂、滴涂、使导体通过浴或者其它任何方法施加到导体上。
本说明书中所描述和讨论的实施方案不仅用于向本领域技术人员传授本发明人所知的实现和使用本发明的最佳方式。本说明书中的任何内容都不应视作限制本发明的范围。所提出的所有实施例是代表性的和非限制性的。本发明的上述实施方案可以调整或改变,而不会背离本发明,正如本领域技术人员基于上述教义所理解到的那样。因此应该理解,在权利要求书及其等价条款的范围内,可以以不同于具体描述的方式实施本发明。
Claims (35)
1.一种向电力变压器中的导体上施加钝化剂的方法,所述方法包括:提供钝化剂的储存器。
2.根据权利要求1的方法,其中所述储存器包含在将要浸入到油中的绝缘结构中。
3.根据权利要求1的方法,其中所述储存器通过将钝化剂施加至导体结构和覆盖纸的至少一个表面上来提供,所述覆盖纸施加至导体以覆盖钝化剂。
4.根据权利要求3的方法,其中所述钝化剂逐滴供给在导体上。
5.根据权利要求1的方法,其中所述储存器通过在用油浸渍固态绝缘体之前将钝化剂添加至固态绝缘体来提供。
6.根据权利要求5的方法,其中在将固态绝缘体施加到导体上的同时将所述钝化剂添加至固态绝缘体。
7.根据权利要求1的方法,其中所述储存器通过将钝化剂喷涂到固态绝缘体上来提供。
8.根据权利要求7的方法,其中所述绝缘体包括纸,所述钝化剂用喷雾器施加在所述纸的侧面。
9.根据权利要求1的方法,其中所述储存器包括用钝化剂浸渍的材料。
10.根据权利要求9的方法,其中所述储存器包括纤维素。
11.根据权利要求9的方法,还包括:将所述储存器布置在含有油的容器中的隔离性结构中。
12.根据权利要求11的方法,其中所述隔离性结构是有孔的。
13.根据权利要求1的方法,其中所述钝化剂包括金属钝化剂。
14.根据权利要求1的方法,其中所述钝化剂包括含有铜的钝化剂。
15.根据权利要求1的方法,其中所述钝化剂可溶于油中。
16.根据权利要求1的方法,其中所述钝化剂在油中具有中度至低度的溶解性。
17.根据权利要求16的方法,其中所述钝化剂包括三唑类和苯并三唑类中的至少一种。
18.根据权利要求17的方法,其中所述三唑类和苯并三唑类没有取代基。
19.根据权利要求17的方法,其中所述三唑类和苯并三唑类具有包含1-10个碳原子的短烃链取代基。
20.根据权利要求13的方法,其中所述钝化剂包括N,N-双(2-乙基己基)-((1,2,4-三唑-1-基)甲基)胺和N,N-双(2-乙基己基)-4-甲基-1H-苯并三唑-1-甲基胺中的至少一种。
21.一种用于向电力变压器中的导体施加钝化剂的结构,所述结构包括:
浸入在油中的导体;
布置在导体周围的绝缘体;和
浸入在油中的包含钝化剂的储存器。
22.根据权利要求21的结构,其中绝缘体包括所述储存器。
23.根据权利要求21的结构,其中所述钝化剂布置在所述导体的至少一个表面上。
24.根据权利要求21的结构,其中所述绝缘体用所述钝化剂浸渍。
25.根据权利要求21的结构,其中所述储存器包含用所述钝化剂浸渍的材料。
26.根据权利要求21的结构,其中所述储存器包括纤维素。
27.根据权利要求21的结构,还包括:在其中布置所述储存器的隔离性结构。
28.根据权利要求27的结构,其中所述隔离性结构是有孔的。
29.根据权利要求21的结构,其中所述钝化剂包括含有铜的钝化剂。
30.根据权利要求21的结构,其中所述钝化剂可溶于油中。
31.根据权利要求21的结构,其中所述钝化剂在油中具有中度至低度的溶解性。
32.根据权利要求31的结构,其中所述添加剂包括三唑类和苯并三唑类中的至少一种。
33.根据权利要求32的结构,其中所述三唑类和苯并三唑类没有取代基。
34.根据权利要求32的结构,其中所述三唑类和苯并三唑类具有包含1-10个碳原子的短烃链取代基。
35.根据权利要求28的结构,其中所述钝化剂包括N,N-双(2-乙基己基)-((1,2,4-三唑-1-基)甲基)胺和N,N-双(2-乙基己基)-4-甲基-1H-苯并三唑-1-甲基胺中的至少一种。
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BRPI0823168A2 (pt) * | 2008-10-20 | 2015-06-23 | Siemens Ag | Metodo para remocao de compostos corrosivos de enxofre de um oleo transformador |
DE102008054657B4 (de) * | 2008-12-15 | 2011-09-15 | Peter Ernst | Verfahren zum Entfernen mindestens einer in Öl enthaltenen Schwefelverbindung oder von in Öl enthaltenem Schwefel aus dem Öl |
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US20130034909A1 (en) * | 2010-06-02 | 2013-02-07 | Mitsubishi Electric Corporation | Diagnosis method and diagnosis apparatus for oil-filled electrical apparatus |
WO2012044369A1 (en) | 2010-09-30 | 2012-04-05 | Abb Research Ltd. | Coordinated control of multi-terminal hvdc systems |
EP2460898A1 (en) | 2010-12-06 | 2012-06-06 | ABB Research Ltd. | Chemical method for removing copper sulphide (Cu2S) deposited onto insulating material in a transformer |
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US20130202511A1 (en) * | 2012-02-06 | 2013-08-08 | Uop Llc | Method for Removal of Heterocyclic Sulfur using Metallic Copper |
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CN105521781B (zh) * | 2014-10-22 | 2017-08-22 | 中国石油化工股份有限公司大连石油化工研究院 | 一种烟气脱硫剂的制备方法 |
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