The fast boiler

What is the market price of 1 ton oil and gas boiler?

Time : 2021-05-31

The market price of 1 ton oil and gas boiler is determined according to the specific type of boiler.In general, the more efficient and environmentally friendly boilers are, the more expensive they will be overall, and the longer they will last.According to the understanding of Zhengzhou Fangkuai Boiler Plant on the whole oil and gas boiler field, the market price of this kind of boiler varies between 70,000-130,000 yuan.

 

Many users in the process of using oil and gas boilers, will find that the exhaust excess of the boiler air coefficient is too high, the main reasons for this situation are the following:

(1) the air supply is too large.It shows that the excess air coefficient at the furnace outlet and the current of feed and induced draft fan are large.

(2) The air leakage in the furnace is large.Negative pressure boiler furnace is negative pressure, and the lower negative pressure than the operating plate on the furnace negative pressure indicator value is much larger.Therefore, the air from the manhole of the furnace, the inspection hole, the furnace tube through the wall leakage into the furnace, will make the excess air coefficient of the furnace outlet increase.

(3) the tail heating surface leakage is large.Due to the large negative pressure at the end of the boiler, the air is easy to leak into the manhole, inspection hole and economizer pipe through the wall from the end of the shaft.In this case, the fan current is not large, the difference between the excess air coefficient of the exhaust smoke and the excess air coefficient of the furnace outlet exceeds the allowable value more, and the induced draft fan current is larger.

(4) leakage of air preheater pipe.Air preheater is prone to perforation and leakage due to low temperature corrosion and wear.In this case, the current of the pilot and blower increases significantly, and the wind pressure at the outlet of the preheater decreases, which will limit the boiler load seriously.The difference between the excess air coefficient before and after the preheater increases significantly.

(5) The negative pressure in the furnace is too large.When the leakage area at the impair is certain, the negative pressure in the furnace increases, because the pressure difference between the air side and the flue gas side increases, the air leakage volume must increase, resulting in the increase of the excess air coefficient of smoke exhaust.

For positive pressure boilers, because most of the furnace and tail flue are positive pressure, cold air usually does not leak into the furnace and flue, so the excessive air coefficient of smoke exhaust is too large, mainly due to the air supply is too large or the air preheater pipe corrosion, wear and tear caused by leakage.

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