Why is the boiler water red?
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Why does the waste heat boiler water appear red? What substance or ion is the red one? I thought it was iron ions, but the iron ion concentration was not high after testing. What could it be?
The red boiler water is seen from the liquid level gauge? Or you can see it from the sampling point. How about leaving it for a while longer from the sampling point?
The boiler has been in standby for a long time. In some pipes, especially the sampling pipes, rust occurs on the inner wall of the pipes, and the boiler water in the sampling pipes turns red due to vibration.
It must be rust. . The color displayed by Fe3+ iron ions is red.
It might be rust. Is Fe2O3 soluble in water? Can Fe3+ be detected?
The ones that were sampled and drained for a long time are still very red! The iron ion concentration is not high after testing! This post was last edited by an oil refinery worker on 2009-3-8 09:43 ]
Please note that there may be overburning and oxidation on some heating surfaces.
How long has it been running? The reason has not been found out? Stop the furnace and check!
1. Sewage discharge is required. 2. If necessary, shut down the furnace for flaw detection and inspection of furnace tubes and drums.
The leader didn’t say stop, how dare we?
If it is abnormal, it means that the water quality is poor and the boiler work is not done well. The main water quality is that there is no deoxygenation, and the dissolved oxygen content in the water is high, causing oxygen to react with metals to form ferric oxide, etc. At the same time, because the stove was not properly cooked, the metal surface was not "passivated" to form a protective film, but the dissolved oxygen in the water easily reacted chemically with the metal.
”"How do you understand that there is overburning oxidation on some heating surfaces?"
At high temperatures, Fe2o3 is soluble in water. As for the amount, I won’t talk about it, but it is enough to affect the color of the furnace water itself. The color of iron oxide is red, and the color of rust suspended in water can also affect the color of water. This post was last edited by tomkan00 on 2009-3-6 14:03 ]
rust! ! ! The oxygen content of the water is high! ! !
How long has the boiler been running? It may be caused by the stove not cooking properly.
We have never encountered this kind of phenomenon. Sometimes black water will come out when we turn on the sampling, but after leaving it for a while, the color of the water becomes normal! !
This happened to my boiler too.
If it is abnormal, it means that the water quality is poor and the boiler work is not done well. The main water quality is that there is no deoxygenation, and the dissolved oxygen content in the water is high, causing oxygen to react with metals to form ferric oxide, etc. Iron tetroxide is easily soluble in water and appears red. The main reason is that the water quality is not up to standard.
I also encountered this when I was driving after the holidays. It returned to normal after 4 days. As mentioned above, it should be because the stove was not properly repaired.