Display issues with the flow meter
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Why does the reading on the flow meter at the steam outlet increase significantly during blowdown and feedwater addition? ? Everyone, please help me find out what the problem is.
Do you have temperature and pressure compensation? It is best to provide compensation.
What is “temperature and pressure compensation”? Could you explain it more clearly?
Does the water level gauge fluctuate sharply when you supply water to or drain from your boiler?
What the poster is referring to is probably a waste heat boiler. When the water inflow rate to the boiler increases suddenly, could the exhaust volume increase as well? This might cause the flow meter to show an increased reading momentarily, hehe
Our boiler is a fluidized bed boiler; the water level does fluctuate significantly when feedwater is added or wastewater is discharged, but the displayed values are much higher than the actual amount of steam used.
It might be due to foaming in the soda; the cause could be water quality issues or improper waste discharge. It is recommended to check the water quality and ensure that waste is discharged in accordance with standards. Also, is it operating under overload? Run in parallel?
Agree with what was said above; this kind of situation should not occur under normal circumstances
Thank you to the two people above; could you please explain to me again the impact of having them combined on the flow meter? Thank you
During paralleling, the operating conditions of the other turbines remain stable. If the temperature and pressure of the steam being added are higher than those in the main steam pipeline, this can cause the other units to experience overheating and overpressure, which is not allowed. If these values are lower, it’s easier to make adjustments – simply adjust the temperature and pressure of the newly added steam so that they reach the rated levels. The general principle is to prevent the units from operating under conditions of overheating or overpressure; therefore, it’s better to keep the values on the lower side. When paralleling, if the boiler’s steam pressure is higher than that in the main steam pipeline, opening the main steam valve too quickly can lead to a sharp drop in boiler pressure, resulting in foaming of the steam and water. The flow meter reading will increase significantly!