Heat dissipation and heat energy recovery device for screw air compressor

The invention relates to the field of screw air compressors. The invention discloses a heat dissipation and heat energy recovery device for a screw type air compressor, and aims to solve the problems that a device conveys heat to liquid through a heat energy converter, and part of the heat is easy to dissipate through secondary transfer of the heat, so that the practicability is poor. When the device conveys cooling oil, the cooling oil flowing at the axis of the oil pipe is difficult to contact with the inner wall of the oil pipe; when the device cools compressed gas, cooling oil is inconvenient to cool at the same time. The waste heat recovery device is composed of a waste heat recovery mechanism, a rotary blocking mechanism and a rotary blocking mechanism. According to the device, the motor drives the stirring blades to rotate to increase the fluidity of liquid in the cylinder, the flowing time of cooling oil in the oil conveying spiral pipe is prolonged through the oil conveying spiral pipe, the contact t