What should be the pressure of the fuel gas or fuel oil for the heating furnace nozzles?
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What should be the pressure of the fuel gas or fuel oil for the heating furnace nozzles? Thank you! !
Are you referring to the heating furnace of the catalytic device? We keep the pressure of the fuel gas between 0.4 and 0.6 MPa. Of course, this is a relatively wide range, but the pressure should not fluctuate too much during control, as the fuel gas for the catalytic unit comes from a liquefied gas vaporizer. At the beginning, when the tank is filled with liquefied gas, the pressure is relatively high; it starts to drop after half of the gas has been used, resulting in a lower pressure. In such cases, it’s necessary to increase the valve opening for the gas. Additionally, the fuel needs to be replaced when a certain temperature is reached, at which point the pressure remains relatively stable, unless there is an accident or some other issue occurs. The fuel oil pressure is related to the head of the pump designed for your facility; generally, it depends on how the facility is designed. Here, a pressure of around 0.4 MPa is usually sufficient to meet the requirements.
I’d like to see a furnace that can burn a mixture of oil and gas, but thanks anyway.
There aren’t many of these types of furnaces, right? It’s difficult to control when two different media are fed into the same heating furnace, especially when the pressures of these two media differ, as well as when their calorific values are different; it’s hard to manage such situations. We don’t have any furnaces of this kind here. It seems that the large medium-pressure steam generation boilers in power plants work in this way, using two types of fuel simultaneously. Such heating furnaces are not common, mainly because it is difficult to control them.
Mixed combustion requires high levels of skill to operate and is difficult to control! If it is a burner, the pressures are generally equal; otherwise, there is a risk of cross-connection or pressure buildup!
We are wall-mounted burners; according to the design requirements, the pressure is controlled at 0.15 Mpa in front of the nozzle