Constant-flow proportional air distribution ball valve

The invention relates to a constant-flow proportional air distribution ball valve. The constant-flow proportional air distribution ball valve comprises a valve body and a ball core rotationally arranged in the valve body, a valve body three-way channel is formed in the valve body, and a ball core three-way channel matched with the valve body three-way channel is formed in the ball core; the ball core three-way channel comprises a first ball core air inlet channel, a second ball core air inlet channel and a ball core air outlet channel which are in communication with one another; and an included angle is formed between the first ball core air inlet channel and the second ball core air inlet channel. According to the constant-flow proportional air distribution ball valve, compared with the prior art, the mixing proportion of two premixed fluids can be conveniently and linearly adjusted, and the output flow of mixed fluid can be kept stable. 本发明涉及一种定流量比例配气球阀，包括阀体以及转动设置在阀体内部的球芯，阀体内设有阀体三通通道，球芯内设有与阀体三通通道相适配的球芯三通通道，