Noise abatement device for draught fan and application method of noise abatement device

Abstract

The invention relates to the field of noise abatement devices used in cooperation with sound absorption materials and used for reducing the exhaust energy through throttling or vortexes, in particular to a noise abatement device for a draught fan and an application method of the noise abatement device. The noise abatement device for the draught fan comprises a center column (1), and is characterized by further comprising a center ring barrel (2), an outer ring barrel (3), inner center plates (41), outer center plates (42) and lug plates (5), the center column (1) is sleeved with the center ring barrel (2), and the center ring barrel is sleeved with the outer ring barrel (3); the outer side wall of the center column (1) and the inner side wall of the center ring barrel (2) are connected through the at least three inner center plates (41); the outer side wall of the center ring barrel (2) and the inner side wall of the outer ring barrel (3) are connected through the at least three outer center plates (42). The application method of the noise abatement device for the draught fan is characterized in that the air feed end of the draught fan (7) is connected with the lug plates (5). The structure is simple, using is convenient, noise reduction is obvious, and the environment is protected.

Description

technical field [0001] The invention relates to the field of a sound-absorbing device used in combination with a sound-absorbing material to reduce exhaust energy by throttling or eddy current, in particular to a sound-absorbing device for a fan and a use method thereof. Background technique [0002] The fan is a gas compression and gas delivery machine. When the fan is running, it converts the mechanical energy of rotation into gas pressure energy and kinetic energy and delivers the gas. In buildings, fans are widely used for ventilation and heat exchange. The normal operation of fans is related to the transmission and distribution energy consumption of the system, which is a very critical part of building energy saving. When the fan is running, it will generate a lot of noise due to the rotation of the motor and the agitation of the air. It is estimated that the noise generated by a fan with a diameter of 800mm can reach more than 80dB during normal operation, and multiple...

AI Technical Summary

Problems solved by technology

When the fan is running, it will generate a lot of noise due to the rotation of the motor and the agitation of the air. It is estimated that the noise generated by a fan with a diameter of 800mm can reach more than 80dB during normal operation, and multiple fans are usually used in linkage in buildings. further increases the noise

At present, there are still defects such as complex structure, inconvenient use, and inconspicuous effect in the measures to reduce fan noise, which have caused great pressure on environmental protection.

Images