Silencing box body for box-type transformer with modular structure

Abstract

The invention discloses a silencing box body for a box-type transformer with a modular structure. The silencing box body comprises a double-layer top cover module, a resonant sound absorbing wall body and a door connected below the double-layer top cover module, a silencing fence, a bottom beam, and a box body foundation provided with an inflow air silencer, wherein the bottom beam, the silencing fence and the box body foundation are fixed together through a positioning connecting rod; and the entire transformer box body is modularized, and comprises four parts. Due to the adoption of the silencing box body, large-scale production can be realized, and convenience is brought to transportation and field installation; meanwhile, convenience is brought to subsequent maintenance; and in particular, when the transformer is required to be overhauled, only a top cover is required to be detached, and the transformer is hoisted out of the box body, so that the cost is lowered.

Description

Technical field [0001] The invention belongs to the field of noise control, and particularly relates to a box-type transformer box for processing low-frequency noise. Background technique [0002] At present, box-type transformers are widely used in residential communities to supply power to the residents of the communities. Such box-type transformers are generally arranged between residential buildings, so they are very close to the residents' rooms. The noise source of the box-type transformer mainly comes from the working noise of the transformer. The box used in the prior art to absorb or block the noise mainly has several disadvantages: [0003] One is to use rock wool sandwich panels as the wall, which has low rigidity and poor sound attenuation performance; [0004] Second, the inner surface of the box is made of solid steel plates, which causes serious reverberation in the box; [0005] The third is poor sealing and serious sound leakage; [0006] The fourth is to dissipate he...

AI Technical Summary

Problems solved by technology

[0003] One is to use rock wool sandwich panel as the wall, which has low rigidity and poor noise reduction performance;

[0004] The second is that the inner surface of the box is a solid steel plate, which causes the reverberation sound in the box to be very serious;

[0005] The third is poor sealing and serious sound leakage;

[0006] Fourth, in order to dissipate heat, air inlets and outlets are arranged on the upper and lower parts of the box respectively, resulting in a "short circuit" of the air flow, that is, the air enters the box from the air inlet and is discharged from the air outlet, and does not flow through heating elements such as transformers. The heat is taken out of the box, causing the temperature in the box to rise continuously, until the normal operation of the transformer is affected, and the ventilation performance is poor;

[0007] The fifth is to use a single-layer roof. In high temperature seasons, the radiant heat of sunlight can easily enter the cabinet through the roof, which will increase the temperature inside the cabinet and make it difficult to cool down and dissipate heat.

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