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低氮燃烧器的种类分类

作者: 西安燃烧机 来源: 未知 时间: 2020-06-24 浏览次数:
低氮燃烧器作为工业上常用的一种燃烧器,而凭据低氮燃烧器的分歧的使用道理将其分为六个种类,以便利客户的使用。 The low nitrogen burner is used as a common type of burner in industry, and it i

低氮燃烧器作为工业上常用的一种燃烧器,而凭据低氮燃烧器的分歧的使用道理将其分为六个种类,以便利客户的使用。
The low nitrogen burner is used as a common type of burner in industry, and it is divided into six kinds according to the different use principle of low nitrogen burner to facilitate the use of customers.
1.阶段低氮燃烧器 按照分级燃烧道理设计的阶段燃烧器,使燃料与空气分段夹杂燃烧,因为燃烧偏离理论当量比,故可降低NOx的生成。
In the 1. stage low nitrogen burner, a stage burner designed according to the principle of graded combustion is designed to mix fuel and air in a piecewise mixture. Because of the deviation of the theoretical equivalent ratio of combustion, the generation of NOx can be reduced.
2.自身再轮回低氮燃烧器 一种是哄骗助燃空气的压头,把部门燃烧烟气吸回,进入燃烧器,与空气夹杂燃烧。因为烟气再轮回,燃烧烟气的热容量大,燃烧温度降低,NOx削减。另一种自身再轮回燃烧器是把部门烟气直接在燃烧器内进入再轮回,并插手燃烧过程,此种燃烧器有按捺氧化氮和节能双重结果。
2. Self-recirculating low-nitrogen burner is a kind of burner which uses the pressure head of combustion-supporting air to suck part of the burning flue gas back into the burner and mix it with air. Because of the flue gas recirculation, the heat capacity of the combustion flue gas is large, the combustion temperature is reduced, and the NOx decreases. Another kind of self recirculating burner is to recirculate part of the flue gas directly in the burner and add the combustion process. This kind of burner has the double effect of reducing nitrogen oxide and energy saving.
3.浓淡型低氮燃烧器 其道理是使一部门燃料作过浓燃烧,另一部门燃料作过淡燃烧,但整体上空气量连结不变。因为两部门都在偏离化学当量比下燃烧,因而NOx都很低,这种燃烧又称为偏离燃烧或非化学当量燃烧。
3. The principle of the dense-lean low-nitrogen burner is to make some of the fuels burn excessively dense and some of the fuels burn excessively light, but the overall air volume remains unchanged. Because both parts are burned at a deviation from the chemical equivalence ratio, NOx is very low. This combustion is also called deviation combustion or non-chemical equivalence combustion.
4.朋分火焰型低氮燃烧器 其道理是把一个火焰分成数个小火焰,因为小火焰散热面积大,火焰温度较低,使“热回响NO”有所下降。此外,火焰小缩短了氧、氮等气体在火焰中的停留时间,对“热回响NO”和“燃料NO”都有较着的按捺感化。

The principle of the 4. division flame type low nitrogen burner is to divide a flame into several small flames. Because of the large heat dissipation area and low flame temperature, the "thermal reaction NO" is reduced. In addition, small flame shortens the residence time of oxygen, nitrogen and other gases in the flame, and inhibits the "thermal reaction NO" and "fuel NO" obviously.


低氮燃烧器


5.夹杂促进型低氮燃烧器 烟气在高温区停留时间是影响NOx生成量的首要身分之一,改善燃烧与空气的夹杂,可以使火焰面的厚度减薄,在燃烧负荷不变的情形下,烟气在火焰面即高温区内停留时间缩短,因而使NOx的生成量降低。夹杂促进型燃烧器就是按照这种道理设计的。
The residence time of the 5. mixed promoted low nitrogen burner flue gas in the high temperature zone is one of the main factors affecting the production of NOx. The improvement of the mixing of combustion and air can reduce the thickness of the flame surface. When the burning load is constant, the flue gas is shortened in the flame surface, which is in the high temperature area, thus reducing the production of the NOx. . The mixing and boosting burner is designed according to this principle.
6.低NOx预燃室低氮燃烧器 预燃室是近10年来我国开发研究的一种高效率、低NOx分级燃烧手艺,预燃室一样由一次风(或二次风)和燃料喷射系统等构成,燃料和一次风快速夹杂,在预燃室内一次燃烧区形成富燃料夹杂物,因为缺氧,只是部门燃料进行燃烧,燃料在贫氧和火焰温度较低的一次火焰区内析出挥发分,是以削减了NOx的生成。
6. low NOx pre combustion chamber low nitrogen burner pre combustion chamber is a high efficiency and low NOx classification combustion technology developed and studied in China in the past 10 years. The pre combustion chamber is usually composed of primary air (or two air) and fuel injection system. The fuel and primary air mixture is quickly mixed, and the fuel mixture is formed in the first combustion chamber in the pre combustion chamber. In the case of anoxia, only part of the fuel is burned, and volatiles are released from the fuel in the primary flame zone where the oxygen is poor and the flame temperature is low, thus reducing the formation of NOx.
分歧的低氮燃烧器可在工业上的分歧范畴阐扬主要感化,请在购置时凭据不消的使用体式来进行低氮燃烧器的购置。
Different low nitrogen burners can play an important role in different fields of industry. Please purchase the low nitrogen burner according to the use of the low nitrogen burner at the time of purchase.


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