Noise reduction device for air outlet of dust removal fan
A technology for a dust removal fan and a noise reduction device, which is applied in the field of noise reduction and noise reduction device and a noise reduction and noise reduction device for the air outlet of the dust removal fan, can solve the problems of high noise at the air outlet and poor noise reduction effect, and achieves noise reduction, compact structure, and noise reduction. The effect of low speed
Active Publication Date: 2019-07-26
JIHUA 3506 TEXTILE & APPL
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Problems solved by technology
[0003] The purpose of the present invention is to solve the defects and deficiencies of the existing dust removal fan outlet noise is too large, the traditional noise reduction effect is not good, now provides a reasonable structure, by reducing the airflow speed and noise reduction, to achieve the dust removal fan outlet noise A noise reduction device at the air outlet of the dust removal fan that is very convenient to use
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Embodiment Construction
[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] see Figure 1 to Figure 7 , a dust removal fan air outlet noise reduction device of the present invention, comprising a dust removal fan body 1, the outer side of the dust removal fan body 1 is a fan outlet 2, characterized in that: the fan outlet 2 and the air duct elbow 3 The inlet ends are connected, the outlet end of the air duct elbow 3 is vertically downward, the outlet end of the air duct elbow 3 is connected to the top of the muffler cover 4, and the inside of the muffler cover 4 is facing the outlet end of the air duct elbow 3 A flow blocking structure is installed, and the outside of the air guide structure is provided with an airflow guide plate or an airflow guiding curved surface. The inner wall of the noise reduction cover 4 is covered with noise reduction cotton 5, and the bottom of the noise reduction cover 4 is...
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A noise reduction silencer for an air outlet of a dust removal fan comprises a dust removal fan body (1) and is characterized in that the air outlet (2) of the fan is connected with the inlet end of an air duct bend (3), the outlet end of the air duct bend (3) is vertically downward, and the outlet end of the air duct bend (3) communicates with the top of a silencing hood (4); a flow resisting structure is mounted inside the silencing hood (4) and right faces the outlet end of the air duct bend (3); an air flow guiding plate (10) or an air flow guiding cambered surface is arranged on the outer side of an air guiding structure, silencing cotton (5) is laid on the peripheral inner wall of the silencing hood (4), and an exhaust outlet (8) is formed in the bottom of the silencing hood (4). The noise reduction silencer is compact in structure, can reduce the speed of air flow exhausted by the dust removal fan to the largest extent, generate good noise reduction and silencing effects and fundamentally and greatly lower noise of the air outlet of the existing dust removal fan of a cotton mill, and is widely applied in the field of noise reduction and silencing of plants.
Description
technical field [0001] The invention relates to a noise-reducing and silencing device, in particular to a noise-reducing and silencing device for an air outlet of a dust removal fan, which belongs to the technical field of noise reduction for factory buildings. Background technique [0002] In the past, the tuyere of the dust removal fan in the spinning mill was directly installed outside the wall, and the airflow discharged from the tuyere of the dust removal fan was directly discharged to the outside. The noise was very high. The traditional noise reduction and dust removal methods are simple and the noise reduction effect is not good. One is to do sound insulation on the air duct According to the actual situation, the pipeline may have to be diverted. The construction is difficult and the noise has not been fundamentally reduced; the other is to add a sound insulation screen to the outer wall. Although the noise inside the factory building has been reduced, the noise outsi...
Claims
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IPC IPC(8): F04D29/66
Inventor 张翔
Owner JIHUA 3506 TEXTILE & APPL