Low NOx emission combustion boiler technology a boiler combustion boiler hypoxic hypoxia NOX emissions from combustion is the easiest way to control. And a combustion burner system does not need to make any changes, only control air flow into the furnace in operation, pulverized coal combustion process as close to the theoretical combustion air amount. Low oxygen combustion scheme can reduce NOX emissions by 20% to 30%. The program practical application subject to conditions. Low oxygen furnace, will increase the amount of unburned carbon, and more difficult for the flame of burning coal more obvious; Further, the CO concentration is also increased so that smoke, which will cause decreased boiler efficiency. Another problem is that for certain boilers, hypoxia causes the main combustion steam or reheat steam temperature is low. The burning coal to immediately, boiler efficiency and reduce the magnitude of steam temperature and other properties to determine the appropriate control value of flue gas oxygen furnace outlet (at or economizer) the specific embodiments. Second, air staged combustion technique combustion air into a plurality of strands, it is gradually mixed and pulverized coal combustion, so you can see the local area to reduce the air-fuel ratio, and the thermal decomposition of coal in the ignition phase, due to hypoxia, and thus the nitrogen oxide generation is suppressed. Air classification may be implemented within the combustor, the boiler can be completed within. 85% of the amount of air required for complete combustion is introduced to the main burner, the main burner combustion zone is insufficient oxygen for the fuel-rich conditions. Due to insufficient amount of oxygen, the flame temperature is low, the amount of nitrogen oxides to less generation of fuel nitrogen intermediates (e.g., NCH, NH3, etc.) will therefore not be oxidized NOX. Meanwhile, it has been possible to further reducing NOX generated in a reducing atmosphere to molecular nitrogen (N2 of), as a result reduces NOX emissions. An upper portion of the top floor is provided Ge overfire air (of OFA) spout into the furnace through which about 15% of the rest of the air, to avoid the high temperature flame zone, it is also possible to burn unburned carbon particles, to complete the combustion process.
Our hotel attaches great importance to environmental protection philosophy, always bear in mind the protection of environmental quality in Xiamen. Therefore, we chose to stay ahead of the fast boiler industry cooperation in clean and green boiler, electric high efficiency steam boiler for industrial applicationss party fast to ensure that we provide the normal work requirements at the same time, has a very clear environmental performance. --customer feedback
You know how the boiler works? Boiler parameters is a main boiler performance indicators, including the boiler capacity, steam pressure, steam temperature, water temperature and the like. Boiler capacity available rated maximum continuous evaporation or evaporation is represented. Rated evaporation under a predetermined outlet pressure, temperature and efficiency, the amount of steam per unit time of continuous production. Maximum continuous evaporation under a predetermined outlet pressure, temperature, per unit time the maximum continuous amount of steam produced. Steam pressure and temperature parameters including high efficiency steam boiler for industrial applications, generally refers to a superheater, superheated steam pressure and temperature at the outlet of the reheater and superheater if no reheater, saturated steam pressure and temperature at the outlet of the boiler refers. Refers to a water temperature of the economizer inlet temperature, inlet temperature refers drum without economizer. Boilers can be categorized in different ways. Boiler use can be divided industrial boilers, utility boilers, marine boilers and boiler locomotive; by the boiler outlet pressure can be divided into low, medium, high pressure, high pressure, sub-critical pressure, the supercritical pressure boiler; boiler and by water flue gas flow path can be divided into the fire tube boilers, fire tube boilers and water-tube boilers, fire tube boilers and wherein the fire tube boiler and collectively shell boiler; press cycle can be divided into natural circulation boiler, auxiliary boiler cycle (i.e., forced-circulation boilers), and the combined circulation boiler once-through boiler; by combustion, the boiler chamber into the burner, and boiling Stoker furnace. Water vapor system, feedwater heated to a temperature in the heater, the water supply pipe into the economizer, after further heating into the drum, along with the mixing pot of water down to the water wall downcomer inlet header. Radiative heat absorbing soda water formed by the mixture in the riser in the drum reaches the waterwall tubes, the water from the steam separator means, steam separation. The separated saturated steam from the superheater to the upper stream drum, continue to become superheated steam endothermic certain temperature (most of the current 300MW, 600MW unit main steam temperature is about 540 ℃), and then sent to the turbine. In terms of combustion and flue gas system, the air blower into the air preheater is heated to a certain temperature. It is ground to certain fineness in the mill coal, a portion of the hot air from the air preheater carried into the furnace through a burner. Discharging pulverized coal burner and combustion air mixture is mixed with the rest of the hot air in the furnace and release large amount of heat. The hot flue gas flowing through the furnace sequence after combustion, Slag bundle, the superheater, economizer and air preheater, and then through the dust removal device, wherein the fly ash is removed, and finally sent to the chimney by the induced draft fan to the atmosphere.
The working principle of high efficiency steam boiler for industrial applications steam boiler with boiling water almost equivalent to pot kettle, oven stove equivalent. Boilers and boiler furnaces is divided into two parts, the pot is filled with water to a metal container, partially combusted fuel furnace, the heat absorption of the water inside the pot furnace fuel combustion converted to steam. Popular terms, the steam boiler is to absorb combustion heat of the fuel into the water some parameters (such as pressure, temperature, etc.) of the steam device. For example, everyone knows to pulverized coal, for example. 1. The operation principle (an example in pulverized coal fired boilers) in heat pulverized coal combustion furnace, radiative heat transfer is first absorbed by the water wall, the Wall Boiling water, a large amount of steam into the drum for steam separator (DC furnace excluded), the separated saturated steam enters the superheater, and continues to absorb the furnace top horizontal flue by means of radiation, convection, heat of the flue gas flue of the tail, and the superheated steam to reach the required operating temperature. Power generation boilers are generally provided with a reheater, it is used to heat the steam through the high pressure cylinders acting reheater go out of the reheat steam, the low pressure cylinder to continue to generate power. 2. Pulverized work, the center position of the flame will impact the amount of evaporation, generally, the lower the evaporation flame kernel, the flame kernel high evaporation amount is small; also affects the position of the center of the flame superheated steam or reheat steam temperature, generally lower the center of the flame in particular superheated steam reheat steam temperature to be low, otherwise higher. 3. The arrangement of the burner, pulverized coal fired boiler on, the current embodiment there are opposed wall, more Tangentially combustion, combustion bis Tangentially the like, each have their own characteristics, can not be applied because the same furnace at the same time several above-mentioned arrangement, the steam still can not directly affect the conclusion.
2019-11-18 · Our industrial water-tube package boilers are custom-engineered to each projects unique specifications for varying inputs and desired outputs. All of our designs feature the high levels of quality, reliability and efficiency for which B&W is known. Over the years, B&Ws industrial boiler configurations have been known by variousRead More
Alibaba.com offers 1,049 high efficiency steam boiler products. About 44% of these are Boilers, 0% are Heating Equipment. A wide variety of high efficiency steam boiler options areRead More
2018-8-5 · Todays process and heating applications continue to be powered by steam and hot water. The mainstay technology for the selection of a high efficiency boiler will result in substantial cost savings. A add-on devices if the boiler is designed for optimum flue gas velocities in the first place. Each boiler pass should beRead More
The used steam is again converted in to water using a condenser. This recovered water is again fed back to the boiler to generate steam. The efficiency of the power plant is directly dependent on difference between pressure and temperature of steam at the inlet and outlet of turbine. Hence, use of high temperature and high pressure steam isRead More
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The temperature of the flue gas is affected by the cleanliness of the steam generators heat transfer surfaces. This in turn is dependent on sootblower performance and air heater operation. Optimal cleanliness of the heat transfer surfaces is achievable with advanced diagnostic and control systems that measure the heat transfer effectiveness of the furnace and superheater banks, evaluateRead More
Superior Boiler offers both Low Pressure and High Pressure packaged steam boilers. These are ready-to-install systems featuring a perfectly matched powerful and efficient burner/boiler combination ideal for Space Heat and Industrial Process applications. All steam boiler controls and secondary plumbing are in place and pre wired and mostRead More
2012-6-28 · Up to 1 500 large-scale and industrial boiler systems are produced annually at our highly modern production sites in Gunzenhausen in Germany and in Bischofshofen in Austria. Contents 3 Expertise und trust 4 Environment and efﬁciency 5 Modular quality 6 UNIVERSAL steam boiler U-ND/U-HD 10 UNIVERSAL steam boiler U-MB 14 UNIVERSAL steam boiler UL-SRead More
2019-11-28 · Gas & oil power plant boiler, waste heat steam boiler, CFB boiler, etc. the large scale boiler types can be designed as high pressure boilers, to generate high pressure high temperature steam for power generation or other steam process applications. Industrial High Pressure Boiler Features: 1.Read More
2020-3-31 · High efficiency, low emission combustion is therefore considered the most viable approach to reduce fuel cost and mitigate undesired environmental effects. In the United States there are approximately 163,000 industrial and commercial boiler systems delivering steam for industrial processes, space heating and hot water.Read More
A broad overview of the combustion process, including burner types and controls, and heat output and losses. This Module is intended to give a very broad overview of the combustion process, which is an essential component of overall boiler efficiency. Readers requiring a more in-depth knowledge are directed towards specialist textbooks andRead More
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Generally, a steam boiler is a type of closed container, designed with steel for heating the water to generate steam by some energy source like burning of fuel with eventually. The vapor generated may be delivered at low-pressure for the industrial progression work in sugar industries, cotton mills, and for generating steaming water that can be utilized for heat up fixing at much low-force.Read More