EGR (Exhaust Gas Recirculation) valve group

The EGR valve group comprises a gas-liquid separation pipe and an EGR valve, and the gas-liquid separation pipe comprises a main pipe, a first branch pipe, a second branch pipe, a liquid drainage branch pipe and a wind resistance plate; the first opening of the main pipe is used for being connected with a gas compressor. A first branch pipe is mounted at a second opening of the main pipe, and the second opening of the main pipe is further connected with a liquid discharge branch pipe; a first opening of the second branch pipe is fixedly connected with the main pipe, and a second opening of the second branch pipe is connected with the EGR valve; the main pipe is divided into a first half area and a second half area along the axis from the first opening to the second opening of the main pipe, the first branch pipe and the second branch pipe are located in the same half area of the main pipe, and the first branch pipe and the drainage branch pipe are located in different half areas of the main pipe; a wind resis