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低氮燃烧器选择考虑的重要参数

时间:2018-06-19 13:46    作者:admin 返回列表

自2017年,发布的锅炉氮氧化物排放的标准后恳求新建的锅炉氮氧化物排放低于30毫克,在用的锅炉氮氧化物排放低于80毫克.对于目前市场上大部分的在用燃气锅炉业主来说,意味着必须调换成低氮燃烧器,才干满足排放恳求.那么低氮燃烧器选择考虑的重要参数有哪些呢?

 since 2017, issued after the boiler nox emissions standards for new boiler nox emissions below 30 mg, in boiler nox emission is less than 80 mg. For most in use gas boiler owners on the market at present, means must be replaced as low nitrogen burner, in order to meet the emission requirements. So low nitrogen burner choose to consider what are the important parameters?

NOx排放

NOx emissions

必须满足国家和处所的环保排放恳求,在满足恳求的前提下,从企业的社会责任角度出发,尽量应当选择NOx排放更低的设备;

It is necessary to meet the requirements of national and local environmental protection emissions. On the premise of meeting the requirements, from the perspective of corporate social responsibility, the equipment with lower NOx emissions should be selected as far as possible.

尾氧含量

The tail oxygen content

为了达到充分燃烧的极限过剩空气系数为大约1.1,对应的理论尾氧含量为大约2%.更高的尾氧含量通常意味着燃烧器效率的降低。理想的燃烧器最好尾氧含量可以把持在3%以内;市场上表面燃烧的燃烧器的尾氧含量通常在7%左右,相对于3%的尾氧含量,意味着产生雷同的热量,需要多耗费大约6~8%的天然气。对于常年运转或者设备长期在较高负荷运转,天然气耗费量比较大的业主,选择一款尾氧含量低的燃烧器对于降低运行成本至关重要。

In order to reach the maximum excess air coefficient of full combustion, which is about 1.1, the theoretical tail oxygen content is about 2%. A higher tail oxygen content usually means a reduction in burner efficiency. The optimal tail oxygen content of the ideal burner can be controlled within 3%. The tail-oxygen content of combustion burners on the market's surface is usually around 7%, which means the same amount of heat is produced, compared with 3% of tail-oxygen content, which requires about 6-8% more natural gas to be consumed. For the owners who operate all year round or whose equipment is under high load for a long time and whose natural gas consumption is relatively high, it is very important to select a burner with low tail oxygen content to reduce the operating cost.

低氮燃烧器

可调比

Adjustable than

采用了电子比例调节的低氮燃烧器通常应当具备至少5:1以上的高可调比。更低的可调比意味着实际运行过程中更多的ON/Off启停,同时也意味着更多的天然气耗费。除非是负荷常年在一个比较小的牢固区间的锅炉,选择一个高可调比的燃烧器对于降低天然气的耗费,降低运行成本,延伸设备的利用寿命非常重要。

Low nitrogen burners with electronic proportional regulation should usually have a high adjustable ratio of at least 5 to 1. A lower tunable ratio means more ON/Off stops during the actual operation and more gas consumption. Unless it's stable load all the year round in a smaller range of boiler, choose a high adjustable ratio of burner for reducing the consumption of natural gas, reduce running cost, prolong the service life of equipment is very important.

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