Silencing machine cabinet of high-speed centrifugal-type fan

Abstract

The invention discloses a silencing machine cabinet of a high-speed centrifugal-type fan. The silencing machine cabinet comprises a main machine cabinet body, an electric control cabinet body, an inlet filter and a main machine, the main machine cabinet body and the electric control cabinet body are arranged in a vertical layered mode, and the main machine is fixed into the main machine cabinet body. The inlet filter is arranged on the outer wall of the machine cabinet body, an exhaust port is formed in the outer wall of the main machine cabinet body, and the silencing machine cabinet furthercomprises small silencing plates and a large silencing plate, the large silencing plate is fixedly connected into the main machine cabinet body, and the large silencing plate and the inlet filter arearranged in parallel. First gaps are formed between the two ends of the large silencing plate and the inner wall of the main machine cabinet body, the two small silencing plates are arranged between the large silencing plate and the inlet filter, and a second gap is formed between the two small silencing plates. The silencing machine cabinet is simple in structure and good in silencing effect.

Description

Technical field: [0001] The invention relates to a muffler cabinet for a high-speed centrifugal fan. Background technique: [0002] Most of the high-speed centrifugal fans use magnetic bearings or air bearings and high-speed permanent magnet synchronous motor technology, which makes their energy-saving effect remarkable, and are widely used in medicine, environmental protection, chemical industry, petroleum and other industries. The cabinet structure of the fan is divided into two parts: the main cabinet and the electric control cabinet. The running speed of the main engine in the main cabinet is about 15000 rpm to 40000 rpm. Without noise control, it will cause troubles to the work of on-site workers and the lives of nearby residents, and in severe cases, it will affect people's physical and mental health. [0003] The shape of the existing fan cabinet is generally hexahedron, the inlet filter and the exhaust port are distributed in the main cabinet, the cabinet door is we...

AI Technical Summary

Problems solved by technology

The cabinet structure of the fan is divided into two parts: the main cabinet and the electric control cabinet. The running speed of the main engine in the main cabinet is about 15000 rpm to 40000 rpm. Without noise control, it will cause troubles to the work of on-site workers and the lives of nearby residents, and in severe cases, it will affect people's physical and mental health

[0003] The shape of the existing fan cabinet is generally hexahedron, the inlet filter and the exhaust port are distributed in the main cabinet, the cabinet door is welded with cold-rolled plate, and filled with a single sound-absorbing material, it is difficult to absorb or block the high frequency generated by the fan Noise, the noise reduction effect is not ideal

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