Main transformer U-type noise reduction firewall structure

Abstract

A main transformer U-type noise reduction firewall structure comprises firewall bodies additionally with concrete framework structures and located on the three sides of a main transformer, a U-type noise reduction firewall defined by three surfaces is formed, the firewall bodies additionally with the concrete framework structures and located on the three sides comprise a firewall foundation additionally arranged on a conventional civil firewall foundation and a base framework and with three surfaces closed, additional grade beams, laid electrical and fire protection embedded parts and embedded pipes, and beams, columns and wall bodies are poured into the firewall foundation; a hole for connecting the main transformer with a device is reserved in the side of a power distribution unit of the firewall, angle steel is embedded into the hole, an electrical wall feed-through sleeve is put into the hole and connected with the angle steel through a connected steel plate, and a waterproof material further seals the hole; and reinforcing meshes and painting layers are laid on the surfaces of the wall bodies. The main transformer U-type noise reduction firewall structure has the characteristics of being reasonable in composition, safe, durable, good in reliability, economical, reasonable, convenient to operate and maintain, small in influence on operation, and the like.

Description

technical field [0001] The invention relates to a U-shaped noise-reducing firewall structure for a main transformer, which belongs to the technical field of substation design and construction in electric power engineering. Background technique [0002] Due to the limited site conditions, the site selection of the project needs to take into account factors such as load, outlet, land properties, flood discharge, whether there are quarries, oil depots, cement plants, etc. Noise prevention requires a relatively strict site. Such sites often have the following characteristics: 1. The residents around the site are sensitive to noise; 2. According to the noise value calculated by simulation, there is indeed excessive noise; 3. It is difficult to demolish the noise-sensitive points around the site. [0003] The main source of noise in substations is the transformer. With the continuous advancement of power equipment manufacturing technology and design technology, the general layout...

AI Technical Summary

Problems solved by technology

Indoor substations are expensive, space is limited, wiring is limited, and they need to be used together with HVAC, fire protection, etc., and are not suitable for outdoor sites in mountainous areas; noise-sensitive points of demolition are noisy, expensive, and difficult to deal with policies; The source is equipped with four-sided enclosure sound barriers. Combined with the characteristics of the main transformer, the enclosure materials must meet the requirements of ventilation, visibility, fire prevention, and sound insulation. The fire enclosure is composed of a variety of noise reduction and noise reduction materials. The use of noise reduction and noise reduction equipment is long and complicated. , and there are problems such as maintenance; Add sound barriers to the three sides of the noise source and add sound barriers at the factory boundary. Once tilted or dropped, it will cause a major safety hazard to the safe operation of the substation

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