Which one starts first, the blower or the induced draft fan, when starting up the hydrogen production reformer?
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The design is to turn on the induced draft fan first and then the blower, but I don't know why.
Turn on the induced draft fan first to prevent overpressure in the furnace, right?
Before the fuel gas is introduced, there is not much difference between turning on the induced draft fan first and turning on the blower first. However, after the fuel gas is introduced, the induced draft fan should be turned on first. The main purpose is to extract the flammable gas leaked into the furnace to prevent accidents when lighting the furnace.
Hello, I have been working in a hydrogen production unit for three years! In Maoming* time, the master said. For large-scale hydrogen production units, the blower is usually turned on first to prevent the induced draft fan from blowing out the overheated section of the flue, but the chance of this happening is very small. The induced draft fans of the hydrogen production unit are all ventilators. The principle of opening is that the inlet and outlet baffles must be closed first. After the fan is started, open the outlet and then open the inlet. Because air is compressible, if the inlet is opened first, the pressure at the outlet will rise. Once the baffle is opened, the pressure will fluctuate instantaneously.
My installation only has an induced draft fan, and I can only turn on the induced draft fan when lighting the furnace. In addition, it is recommended that you add frequency conversion to the induced draft fan. On the one hand, it can save energy, and on the other hand, it is easier to adjust the negative pressure of the furnace when the furnace is turned on.
The hydrogen production reformer usually starts the draft fan before ignition, and the blower is turned on. If the blower is turned on first, the explosion-proof hole will be blown open by the wind. Open the inlet before the draft fan, and open the outlet after opening. The blower is reversed, so as to prevent the power of the induced draft fan and the blower from over-current during startup.
If the induced draft fan and blower are turned on for the first time without a strict sequence, it is mainly for safety reasons.
This is not a big problem. Two fans can be turned on at the same time. There is no standard answer.
Are your drums and induced draft fans variable frequency?
Haha, our hydrogen production reformer does not have a blower, but I personally think it is better to turn on the induced draft fan first, so as to establish a negative pressure in the furnace, which is conducive to the normal operation of the burner.
Everyone in LS, you must turn on the blower and induced draft fan before you can light the burner. This order must not be reversed or mistaken.
The induced draft fan should be turned on first, and the baffle should be adjusted to establish a slight negative pressure in the furnace without damaging the furnace tube and lining. If the blower is turned on first, the furnace will easily generate positive pressure, which is not conducive to safety.