What is the appropriate pressure of the fuel gas in front of the burner of a diesel hydrogenation heater?
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Advice from a job-hunting expert. :victory:
Isn’t the control range specified in your operating procedures? The standard setting is usually around 0.6 Mpa. Specifically, it depends on the type of burner and the setup of the gas pipeline network per unit!
Between 0.1 and 0.25 MPa.G, I guess
1 When designing a gas fuel burner, it is necessary to specify the properties of the fuel, such as its composition, pressure, temperature, and heat load. The burner has an operating range; operating within this range yields better combustion quality. The diameter and number of the nozzle orifices are determined under given conditions, and once the total cross-sectional area of these orifices is established, the amount of fuel passing through them will increase or decrease depending on the pressure in front of the nozzle. 3 When the pressure in front of the nozzle decreases, the flame stiffness worsens, and the flame flickers as it touches the furnace tube ； As the pressure in front of the nozzle increases, the flame stiffness increases and the flame height rises. 4 The pressure in front of the nozzle depends on the heat load of the heating furnace, the calorific value of the fuel, the stiffness of the flame, and the air supply capacity, among other factors. 5 Due to the varying conditions of fuel gas across different companies, there are no strict regulations. 6 Please note that there is a difference between the pressure in the fuel gas network and the pressure in front of the nozzle; only when the control valve in front of the nozzle is fully opened do these two pressure values become similar. The pressure before the nozzle directly affects the quality of combustion
Interlock value of 0.05 to 0.7.
It depends on the burner design; different designs result in different control pressures
It’s around 0.1 to 0.2. The pressure on the fuel gas official website is around 0.4, which is far from the interlock value; it also can’t be too high, as high pressures can easily damage the hoses.