Transformer denoising device
A technology for transformers and transformer rooms, applied in transformer/inductor noise damping, transformer/inductor enclosures, instruments, etc., can solve the problems of increasing transformer cost, polluting the environment, poor fire and moisture resistance, etc., and achieves easy installation and cost. Economical and simple structure
Inactive Publication Date: 2014-01-29
宁夏天地经纬电力设备工程有限公司
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[0006] However, the first method will greatly increase the cost of the transformer. Although the second method is cheap, organic fiber materials such as felt and cotton wool have poor fire and moisture resistance, while the disadvantage of inorganic fiber materials such as glass wool and slag wool is that the fiber is brittle. , easy to break and form dust to escape and pollute the environment, and the soft structure requires a protective layer on the surface
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[0018] The present invention will be further described below in conjunction with the accompanying drawings. Such as figure 1 As shown, a transformer noise reduction device includes a transformer room wall 1, a ceramic sound-absorbing board 2, and a sound-absorbing wedge 3. The ceramic sound-absorbing board 2 is fixed on the wall 1 to form a sound insulation wall, and the sound-absorbing wedge 3 is hung On the ceramic sound-absorbing panel 2, the sound-absorbing wedge 3 is provided with a metal grid 31 and a porous sound-absorbing material 32 filled in the metal grid.
[0019] The sound-absorbing wedge 3 is wedge-shaped;
[0020] The porous sound-absorbing material 32 is porous metal foam;
[0021] The material for making the porous metal foam is Al alloy.
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The invention discloses a transformer denoising device which comprises a transformer chamber wall body, a ceramic noise-absorbing plate and noise-absorbing wedges. The ceramic noise-absorbing plate is fixed on the wall body to form a noise insulating wall, and each noise-absorbing wedge is hung on the ceramic noise-absorbing plate and provided with a metal net frame and a porous noise-absorbing material filled in the metal net frame. The transformer denoising device is light in weight, simple in structure, convenient to mount, low in manufacturing cost and durable. A special structure of the noise-absorbing wedges and noise-absorbing effect of porous foam metal are utilized, and the noise insulating wall formed by the ceramic noise-absorbing plate is utilized, so that noise in a transformer chamber can be lowered by 20-30dB.
Description
technical field [0001] The invention belongs to the field of transformer manufacturing, in particular to a noise reduction device for a transformer. Background technique [0002] In recent years, with the development of urban construction, industrial and residential electricity consumption has grown rapidly, and more and more large transformers have been used in residential and public places, which puts forward certain requirements for the noise of large transformers and small and medium-sized transformers. . The noise problem of transformers has attracted more and more people's attention. How to reduce transformer noise has become an urgent problem in the transformer manufacturing industry. [0003] The existing transformer noise reduction measures mainly include the following two types: [0004] (1) Reduce the noise of the transformer itself: the noise of the transformer mainly comes from the magnetostriction of the silicon steel sheet, so it can reduce the noise of the...
Claims
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IPC IPC(8): H01F27/33H01F27/02G10K11/16
Inventor 雍少银
Owner 宁夏天地经纬电力设备工程有限公司
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