CN204204571U - The energy-saving casing of oil immersed power transformer - Google Patents
The energy-saving casing of oil immersed power transformer Download PDFInfo
- Publication number
- CN204204571U CN204204571U CN201420694846.5U CN201420694846U CN204204571U CN 204204571 U CN204204571 U CN 204204571U CN 201420694846 U CN201420694846 U CN 201420694846U CN 204204571 U CN204204571 U CN 204204571U
- Authority
- CN
- China
- Prior art keywords
- magnetic shielding
- shielding frame
- box body
- transformer
- lower frames
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 8
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 7
- 239000011241 protective layer Substances 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 239000004593 Epoxy Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
本实用新型公开了一种油浸电力变压器节能型箱体，包括箱本体，所述箱本体内固定有磁屏蔽框架，所述磁屏蔽框架由用于支撑变压器磁轭的上、下框体和固定连接在所述上、下框体之间的多个立板构成，所述磁屏蔽框架的外侧面与箱本体的内侧壁相贴合；所述立板和上、下框体均由多层优质硅钢片或多层铁基非晶合金板叠置而成，所述每层优质硅钢片或铁基非晶合金板表面均涂覆有绝缘氧化层，在磁屏蔽框架外表面包覆有环氧树脂保护层。本实用新型优点在于磁屏蔽框架使用优质硅钢片能使变压器空载损耗降低5%～8%之间，如采用铁基非晶带材类的材质能使变压器空载损耗降低6%～10%之间。
The utility model discloses an energy-saving box body of an oil-immersed power transformer, which comprises a box body, and a magnetic shielding frame is fixed inside the box body, and the magnetic shielding frame is composed of upper and lower frames for supporting a transformer yoke and It is composed of a plurality of vertical plates fixedly connected between the upper and lower frames, and the outer surface of the magnetic shielding frame is attached to the inner wall of the box body; the vertical plates and the upper and lower frames are composed of multiple The surface of each layer of high-quality silicon steel sheet or iron-based amorphous alloy plate is coated with an insulating oxide layer, and the outer surface of the magnetic shielding frame is coated with Epoxy protective layer. The utility model has the advantage that the high-quality silicon steel sheet used in the magnetic shielding frame can reduce the no-load loss of the transformer by 5% to 8%, and if the material of the iron-based amorphous strip is used, the no-load loss of the transformer can be reduced by 6% to 10%. between.
Description
技术领域 technical field
本实用新型涉及油浸电力变压器，尤其是涉及油浸电力变压器节能型箱体。 The utility model relates to an oil-immersed power transformer, in particular to an energy-saving box body of an oil-immersed power transformer.
技术背景 technical background
油浸电力变压器广泛应用于发电厂、变电站、工矿企业、商业及居民小区等场所。油浸变压器的设计制造已经在其内部结构采取了多种节能措施，但是，油浸电力变压器铁芯漏磁在其外壳上所产生的涡流损失却被人们忽视。油浸电力变压器的磁轭起闭合磁路作用，变压器工作时上、下磁轭均存在漏磁，这部分漏磁将在冷轧钢板制成的变压器外壳（箱体）上产生涡流，尤其是在上、下磁轭之间的外壳（侧箱板）部分形成强涡流区，在上、下磁轭之间以外的部分形成弱涡流区。由于油浸电力变压器使用数量非常庞大，因此减少油浸电力变压器箱体强涡流区的电能损耗将是进一步降低电能损耗的关键。 Oil-immersed power transformers are widely used in power plants, substations, industrial and mining enterprises, commercial and residential quarters and other places. The design and manufacture of oil-immersed transformers has adopted various energy-saving measures in its internal structure, but the eddy current loss produced by the core magnetic flux leakage of oil-immersed power transformers on its shell has been ignored by people. The yoke of the oil-immersed power transformer acts as a closed magnetic circuit. When the transformer is working, there is magnetic flux leakage in the upper and lower yokes. This part of the magnetic flux leakage will generate eddy currents on the transformer shell (box) made of cold-rolled steel plates, especially A strong eddy current zone is formed in the shell (side box plate) between the upper and lower yokes, and a weak eddy current zone is formed in the part outside the upper and lower yokes. Due to the large number of oil-immersed power transformers used, reducing the power loss in the strong eddy current area of the oil-immersed power transformer box will be the key to further reducing power loss.
发明内容 Contents of the invention
本实用新型目的在于提供一种油浸电力变压器节能型箱体，以降低油浸电力变压器在带电运行状态下其箱体存在涡流及电能损失。 The purpose of this utility model is to provide an energy-saving box of an oil-immersed power transformer, so as to reduce the eddy current and power loss in the box of the oil-immersed power transformer in the live running state.
为实现上述目的，本实用新型采取下述技术方案： In order to achieve the above purpose, the utility model adopts the following technical solutions:
本实用新型所述的油浸电力变压器节能型箱体，包括箱本体，所述箱本体内固定有磁屏蔽框架，所述磁屏蔽框架由用于支撑变压器磁轭的上、下框体和固定连接在所述上、下框体之间的多个立板构成，所述磁屏蔽框架的外侧面与箱本体的内侧壁相贴合；所述立板和上、下框体均由多层优质硅钢片或多层铁基非晶合金板叠置而成，所述每层优质硅钢片或铁基非晶合金板表面均涂覆有绝缘氧化层，在磁屏蔽框架外表面包覆有环氧树脂保护层。 The energy-saving box of the oil-immersed power transformer described in the utility model includes a box body, a magnetic shielding frame is fixed inside the box body, and the magnetic shielding frame is composed of upper and lower frames for supporting the transformer yoke and fixed It is composed of a plurality of vertical plates connected between the upper and lower frames, and the outer surface of the magnetic shielding frame is attached to the inner wall of the box body; the vertical plates and the upper and lower frames are made of multi-layer High-quality silicon steel sheets or multi-layer iron-based amorphous alloy plates are stacked. The surface of each layer of high-quality silicon steel sheets or iron-based amorphous alloy plates is coated with an insulating oxide layer, and the outer surface of the magnetic shielding frame is covered with a ring Oxygen protective layer.
本实用新型优点在于在不改变现有油浸电力变压器箱体的基础上，在箱体内置入所述磁屏蔽框架。当油浸电力变压器带电运行时，变压器上磁轭与下磁轭产生的漏磁不再通过变压器外壳形成闭合的磁回路，而是通过磁屏蔽框架形成闭合的磁回路，磁屏蔽框架的材质呈现高导磁率、高电阻率特性，减少了油浸电力变压器在带电运行状态其箱体的涡流及电能损失。磁屏蔽框架使用优质硅钢片能使变压器空载损耗降低5%～8%之间，如采用铁基非晶带材类的材质能使变压器空载损耗降低6%～10%之间。 The utility model has the advantage that the magnetic shielding frame is built into the box without changing the box body of the existing oil-immersed power transformer. When the oil-immersed power transformer is running with electricity, the magnetic flux leakage generated by the upper yoke and the lower yoke of the transformer no longer forms a closed magnetic circuit through the transformer shell, but forms a closed magnetic circuit through the magnetic shielding frame. The material of the magnetic shielding frame presents The characteristics of high magnetic permeability and high resistivity reduce the eddy current and power loss of the box of the oil-immersed power transformer in the live operation state. The use of high-quality silicon steel sheets for the magnetic shielding frame can reduce the no-load loss of the transformer by 5% to 8%. For example, the use of iron-based amorphous strip materials can reduce the no-load loss of the transformer by 6% to 10%.
附图说明 Description of drawings
图1是本实用新型的结构示意图。 Fig. 1 is a structural representation of the utility model.
图2是本实用新型所述磁屏蔽框架的结构示意图。 Fig. 2 is a structural schematic diagram of the magnetic shielding frame of the present invention.
图3是图2的A-A向剖面图。 Fig. 3 is a sectional view taken along line A-A of Fig. 2 .
图4是本实用新型安装变压器后的状态参考图。 Fig. 4 is a reference diagram of the state after the transformer is installed in the utility model.
具体实施方式 Detailed ways
如图1-4所示，本实用新型所述的油浸电力变压器节能型箱体，包括箱本体1，所述箱本体1内固定有磁屏蔽框架，所述磁屏蔽框架由用于支撑变压器上磁轭2和下磁轭3的上、下框体4、5和固定连接在所述上、下框体4、5之间的多个立板6构成，所述磁屏蔽框架的外侧面与箱本体1的内侧壁相贴合；所述立板6和上、下框体4、5均由多层优质硅钢片或铁基非晶合金板7叠置而成，所述每层铁基非晶合金板7表面均涂覆有绝缘氧化层，在磁屏蔽框架的外表面包覆有环氧树脂保护层8。 As shown in Figures 1-4, the energy-saving box of the oil-immersed power transformer described in the utility model includes a box body 1, and a magnetic shielding frame is fixed inside the box body 1, and the magnetic shielding frame is used to support the transformer. The upper and lower frames 4, 5 of the upper yoke 2 and the lower yoke 3 are composed of a plurality of vertical plates 6 fixedly connected between the upper and lower frames 4, 5, and the outer surface of the magnetic shielding frame Fitted with the inner side wall of the box body 1; the vertical plate 6 and the upper and lower frames 4, 5 are all stacked by multi-layer high-quality silicon steel sheets or iron-based amorphous alloy plates 7, and each layer of iron The surface of the base amorphous alloy plate 7 is coated with an insulating oxide layer, and the outer surface of the magnetic shielding frame is coated with an epoxy resin protective layer 8 .
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694846.5U CN204204571U (en) | 2014-11-19 | 2014-11-19 | The energy-saving casing of oil immersed power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694846.5U CN204204571U (en) | 2014-11-19 | 2014-11-19 | The energy-saving casing of oil immersed power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204571U true CN204204571U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694846.5U Expired - Lifetime CN204204571U (en) | 2014-11-19 | 2014-11-19 | The energy-saving casing of oil immersed power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633940A (en) * | 2016-07-19 | 2018-01-26 | 江苏中天伯乐达变压器有限公司 | It is unshakable in one's determination and there is the transformer unshakable in one's determination |
-
2014
- 2014-11-19 CN CN201420694846.5U patent/CN204204571U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633940A (en) * | 2016-07-19 | 2018-01-26 | 江苏中天伯乐达变压器有限公司 | It is unshakable in one's determination and there is the transformer unshakable in one's determination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee after: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Address before: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee before: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150311 |