Roots blower pressure release valve device

The Roots blower pressure release valve device comprises a Roots blower, an air inlet end is arranged at the top of the Roots blower, an air outlet end is arranged on the surface of the side wall of the Roots blower, the outer surfaces of the air outlet end and the air inlet end are fixedly connected with a first fixing ring and a second fixing ring respectively, and a discharge pipe is arranged on the upper surface of the air outlet end. The top of the discharge pipe is connected with a pressure release valve through a bolt, the top of the pressure release valve is provided with a bonnet, the output end of the pressure release valve is provided with a U-shaped pipe, the U-shaped pipe is sleeved with a U-shaped cooling pipe, the bottom of the U-shaped pipe is connected with a collecting barrel through a pipeline, and the collecting barrel is located on the lower side of the U-shaped cooling pipe; a pressure gauge is arranged at the air outlet end of the side portion of the pressure release valve. Water in ste