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Low-nitrogen combustion control method and system based on secondary damper air adjustment control

A secondary damper, low-nitrogen combustion technology, applied in the combustion method, combustion control, air supply adjustment and other directions, can solve the problem of the model deviating from the actual operating conditions and so on

Active Publication Date: 2016-08-31
YANTAI LONGYUAN POWER TECH
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  • Abstract
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Problems solved by technology

The error of the data used in the modeling itself is likely to cause the model to deviate from the actual operating conditions and inhibit the function of the product

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  • Low-nitrogen combustion control method and system based on secondary damper air adjustment control
  • Low-nitrogen combustion control method and system based on secondary damper air adjustment control
  • Low-nitrogen combustion control method and system based on secondary damper air adjustment control

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0060] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses a low-nitrogen combustion control method and system based on secondary damper air adjustment control. Among them, the intelligent air conditioning server determines the current coal quality status that is being burned according to the collected coal quality parameters, selects the corresponding air distribution scheme according to the coal quality status and the operation mode of the coal mill, and sends the air distribution scheme to the controller; The controller controls each secondary damper of the coal-fired boiler according to the air distribution plan sent by the intelligent air conditioning server; the intelligent air conditioning server determines the corresponding The correcting scheme of the secondary damper, and send the corresponding control command to the controller; the controller corrects the secondary damper according to the received control command, so as to reduce the emission of nitrogen oxides. By controlling the secondary damper according to the operating conditions of the coal-fired boiler, the low-nitrogen combustion control can be effectively realized.

Description

technical field [0001] The invention relates to the field of optimal combustion control of boilers, in particular to a low-nitrogen combustion control method and system based on secondary damper air adjustment control. Background technique [0002] Nitrogen oxide (NOx) emission characteristics of large coal-fired power plant boilers are of increasing concern. According to the traditional distribution style of "big three zones" (main combustion zone, reduction zone and burnout zone), the industry at home and abroad has made remarkable achievements. However, when further deep denitrification is carried out, a series of outstanding problems have appeared, mainly including the decrease of carbon burnout rate, the increase of carbon monoxide CO emission, and the decrease of boiler efficiency; a strong reducing atmosphere locally appears in the furnace, resulting in Furnace slagging, high temperature corrosion tendency of water wall increases. As a result, the traditional extens...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23N3/00
Inventor 蔡芃吕霞张巍赵超王海鹏隋海涛付春磊潘小龙
Owner YANTAI LONGYUAN POWER TECH
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