How to adjust the air-fuel ratio proportional valve

The air-fuel ratio proportional valve receives the air pressure adjustment signal through the pressure conduit connected to the air pipeline, thus realizing the constant ratio between the outlet pressure of the air-fuel ratio proportional valve and the air control pressure 1: 1. By adjusting the air valve to change the air control pressure, the power of the burner can be adjusted by changing the gas pressure accordingly. The fluctuation of furnace pressure has the same effect on gas and air flow, so the mixing ratio of air and gas will not be affected. In a small flow range, the air-fuel ratio can be set by adjusting the spring of the air-fuel ratio proportional valve. Under the pulse control condition, the spring has been set to Quan Song state at the factory to ensure that the small fire flow is completely provided by the bypass; The fire setting is realized by adjusting the current limiting device in front of the burner.

JGK air/gas proportional control valve is used to achieve a constant air-fuel ratio and obtain the gas pressure required by the burner under different conditions. Use when the combustion air is not preheated. According to the requirements of complete combustion of the burner, the normal combustion of the burner requires a stable mixing ratio of combustion-supporting air and gas, and a constant air-fuel ratio is obtained by controlling the ratio of air and gas.