small fired tube industrial steam boiler

small fired tube industrial steam boiler

Henan present gas boiler fuel ratio control and debugging problems 1.Henan gas boiler fuel ratio irrational: ejector conventional gas boiler burner, resulting in the air-fuel ratio adjustment can not maneuver. Most of the gas boiler uses a mechanical blower burner, causing the air-fuel ratio irrational factors are the following: air-fuel ratio unreasonable divided into two situations: when the excess air from time to time, there will be plenty of cold air is superfluous heating, resulting in increased energy boiler, boiler thermal efficiency decreased; when there is insufficient air, there will be incomplete combustion phenomenon, resulting in the boiler thermal efficiency. 2. Boiler factors Henan gas air-fuel ratio include: changes in ambient temperature lead to changes in air density and the density of the gas, fluctuation of gas pressure in the pipe causes the amount of gas injected into the furnace is increased or decreased, the throttle opening degree at some time after the operation offset, etc., can lead to imbalance in air-fuel ratio. These factors are always constantly changing, therefore, it is necessary to adjust the air-fuel ratio is continuous, uninterrupted. Autoregulation limitations burner: Burner simple conventional air-fuel ratio adjusting means arranged, by adjusting the air-fuel ratio mechanical linkage, environmental factors can not solve the problem of air-fuel ratio variation due to frequent fluctuations. If the air-fuel ratio imbalance, the burner is not self-diagnose and self-correction function. 3. Henan gas boiler fuel ratio control and debugging: In most cases, was observed with the naked eye are commissioning adjusting the fuel valve and the air damper opening degree of flame color and shape manually, it can not determine whether the air-fuel ratio in an optimal position. Even at the time of commissioning flue gas analyzer to adjust the air-fuel ratio is good, but due to the many changes in the external environment factors will lead to continued volatility combustion conditions, even a one-time adjustment of the air-fuel ratio accurately, but after a short time (a few hours or a few days means after), will soon air-fuel ratio imbalance.

Furnace wall directly on the boiler masonry foundation, i.e. the weight of the furnace wall is directly received by the boiler wall base. Generally furnace wall brick from refractory bricks and two layers. This class furnace wall is thick, usually 500mm, larger mass. But also because of its direct boiler on the basis of the masonry, and because of the larger weight, such furnace wall height is restricted. Is too high, instability in the furnace wall on the one hand, on the other hand because of the limited strength at high temperatures, it is generally not more than 10m, 10m or more than structural measures must be taken, such as simple metal frame may be used to enhance their stability. Industrial boilers due to generally lower than 10 ~ 12m, the ancient capital of the use of heavy furnace wall. 2, heavy boiler wall features

Cade Shopping Mall is located in central Shanghai Hongkou District, Shanghai Daily larger flow of people in the region. The introduction of Shanghai air pollutant emission standards, boiler flue gas emissions of nitrogen oxide emissions to less than 80 mg / m, Shopping Mall a coal-fired boilers have been used for many years, NOx emissions far super to this request, the urgent need to replace more environmentally friendly low nitrogen emission boilers. Other units through the use of fast Boiler introduction and understanding, determined and fast boiler to achieve cooperation, party fast to their specific needs to recommend one condensing gas hot water boiler of a 4.2MW for heating needs of the shopping center.

The security measures mentioned above will need to invest a lot in research and development and manufacturing costs, many boiler manufacturers in order to save costs will reduce the number of security warnings probe, for users, this is a big risk.

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small fired tube industrial steam boiler

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