Use of high-pressure gas in heating furnaces
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What is the typical pressure of high-pressure gas (i.e., fuel gas) used in the heating furnaces of refineries? In our plant, the furnace won’t operate properly if the pressure is below 0.4 Mpa. Moreover, the dispatch department sometimes frequently instructs us to reduce the gas control valve value in order to use more oil; yet shortly after that, they ask us to use less oil and increase the gas pressure control valve value. I don’t understand why they give such instructions……
The pressure of our high-pressure gas should normally be no less than 0.6 MPa.
Your gas supply might not be direct; it’s shared with household use, so the pressure is low and the amount of gas available is limited. Oil must therefore be used as a supplement, but I guess there are few stoves that use oil these days
The pressure is related to the design of the heating furnace; the gas pressure at low-pressure nozzles can be 20 kPa. The required gas pressure is generally greater than 2 bar.