Turbo compressor with explosion-proof function

Abstract

Provided is a turbo compressor capable of compressing a gas and supplying the compressed gas to outside, the turbo compressor including a compression unit including an impeller for compressing a gas introduced through a compressed gas inlet, a motor including a rotating shaft having an end coupled to the impeller, to rotate the impeller, a housing including a motor accommodation space for accommodating the motor, a cooling air channel provided to pass through the motor accommodation space and formed to continuously circulate a cooling gas accommodated therein, one or more air bearings supporting a radial load or an axial load of the rotating shaft, and a non-contact explosion-proof unit provided as a passage through which flames produced in an inner space of the housing pass so as to be cooled and then discharged to the outside, and having a width less than or equal to a predetermined value and a length greater than or equal to a predetermined value, wherein a compressed gas channel is spatially separate from the cooling air channel to prevent the gas inside the compressed gas channel from penetrating into the cooling air channel. According to the present invention, an explosion-proof turbo compressor with an improved structure to increase service life and reduce vibration noise by using air bearings and to, at the same time, rapidly cool and then discharge flames caused by an internal explosion may be provided.