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Low-nitrogen combustion circulating fluidized bed boiler and its application method

A circulating fluidized bed, low-nitrogen combustion technology, applied in combustion methods, fluidized bed combustion equipment, combustion types, etc., can solve problems such as undetermined nitrogen oxide content and inhalation time, lung structure changes, etc. To achieve the effect of easy control and manipulation, reduce the probability of misoperation, and reduce equipment costs

Active Publication Date: 2020-11-17
SICHUAN CHUANGUO BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Research indicates that chronic inhalation of nitrogen oxides may lead to structural changes in the lungs, but the amount of nitrogen oxides and the duration of inhalation that lead to this effect have not yet been determined

Method used

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  • Low-nitrogen combustion circulating fluidized bed boiler and its application method
  • Low-nitrogen combustion circulating fluidized bed boiler and its application method
  • Low-nitrogen combustion circulating fluidized bed boiler and its application method

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Embodiment Construction

[0035] The present invention proposes a low-nitrogen combustion circulating fluidized bed boiler and its use method:

[0036] 1. The low-nitrogen combustion circulating fluidized bed boiler includes a furnace 1, an air inlet system, a separation system and a coal inlet system. The air inlet system is installed at the lower end of the furnace 1. The coal feeding system is installed at the lower end of the furnace 1. The coal feeding system includes a coal dropping pipe 10, a detachable coal feeding hopper 40 and a coal pusher 11. The coal dropping pipe 10 is connected to the furnace 1. Coal feeding hopper 40 is matched with each other, and detachable coal feeding hopper 40 is installed to the mouth of coal falling pipe 10 in the way of putting in; existing coal falling pipe 10 has a small nozzle, and it is easy to leak out when coal is poured in. The problem of waste; the detachable coal hopper 40 is convenient for pouring coal into the coal drop pipe 10, effectively solving th...

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Abstract

The invention discloses a low-nitrogen combustion circulating fluidized bed boiler and a using method thereof. The low-nitrogen combustion circulating fluidized bed boiler comprises a furnace, an airinlet system, a separating system and a coal inlet system, wherein the air inlet system involves an air inlet pipe, a primary air inlet device and a secondary air inlet pipeline system, the air inletpipe is connected with the primary air inlet device and the secondary air inlet pipeline system, and the primary air inlet device is arranged at the lower end of the furnace; the primary air inlet device is internally provided with a primary air inlet pipe, an air inlet buffer and an air distribution plate, and the primary air inlet pipe communicates with a primary air combustion area; and the secondary air inlet pipeline system communicates to a secondary air combustion area, and the secondary air combustion area is located downstream the primary air combustion area. According to the boiler and the method, coal is subjected to staged combustion in the boiler through the primary air inlet device and the secondary air inlet pipeline system, primary combustion is carried out under the low oxygen condition, secondary combustion is carried out under the low fuel condition, so that the generation of nitrogen oxides during two-time combustion is greatly inhibited, the principle is simple, and the practicability is high.

Description

technical field [0001] The invention belongs to the field of boiler equipment, and in particular relates to a low-nitrogen combustion circulating fluidized bed boiler and a use method. Background technique [0002] The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The boiler includes two parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in daily life, and also have a small amount of application in industrial production. Boilers that gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/10F23C10/20F23C10/22F23C10/28
CPCF23C10/10F23C10/20F23C10/22F23C10/28
Inventor 陈其钻
Owner SICHUAN CHUANGUO BOILER
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