The inherent characteristics of high noise equipment in petrochemical enterprises, such as many kinds, large quantity, wide distribution and complex types of sound sources, as well as the tendency of equipment development to large scale and combination, make the noise problem increasingly prominent. The noise of Roots blower is more than 105dB(A), which has become the focus and difficulty of occupational hazard control in petrochemical enterprises.

    First of all, we install a sliding rail type sound insulation cover for Roots blower body to facilitate daily maintenance, inspection and repair. At the same time, considering that the noise level of the muffler in and out of the air duct of Roots blower is 100dB(A), a modular muffler sound insulation cover is set for the muffler.

    In order to prevent the heat dissipation problems of Roots blower after the installation of sound insulation cover, explosion-proof axial flow blowers are installed in the air inlet and outlet of sound insulation cover for forced air inlet and exhaust, and explosion-proof thermal resistance temperature sensor coaxial flow blower interlock is set at the connection between the motor and the belt.