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Air distribution plate structure for biomass boiler, boiler system and operation method

A biomass boiler and operation method technology, applied in the field of biomass utilization, can solve the problems of high initial pollutant discharge, poor system reliability, poor combustion stability, etc., so as to reduce the initial pollutant discharge, improve combustion efficiency, and improve stability. Effect

Pending Publication Date: 2020-11-27
HUANENG CLEAN ENERGY RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are mainly two types of biomass boilers: grate furnace and fluidized bed. It is difficult to discharge foreign matter, the system reliability is poor, and the operation cycle is too short

Method used

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  • Air distribution plate structure for biomass boiler, boiler system and operation method
  • Air distribution plate structure for biomass boiler, boiler system and operation method

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Embodiment Construction

[0023] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0024] refer to figure 2 , an air distribution plate structure used for biomass boilers, including an air distribution upper plate 31, a resistance tube and an air distribution plate lower plate 33; through holes are evenly opened on the air distribution upper plate 31 and the air distribution plate lower plate 33, and the resistance The upper end of the tube is connected to the upper plate 31 of the air distributor, the lower end of the resistance tube is connected to the lower plate 33 of the air distributor, and a recirculation hole 34 is set on the tube wall of the resistance tube, and the two ends of the resistance tube are respectively connected to the upper plate 31 of the air distributor and the lower plate 33 of the air distributor. The through hole of the board lower board 33.

[0025] Such as figure 2 As shown, an implementable ai...

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Abstract

The invention discloses an air distribution plate structure for a biomass boiler, a boiler system and an operation method. The air distribution plate structure comprises an air distribution plate upper plate, a resistance pipe and an air distribution plate lower plate. Through holes are evenly formed in the air distribution plate upper plate and the air distribution plate lower plate. The upper end of the resistance pipe is connected with the air distribution plate upper plate, and the lower end of the resistance pipe is connected with the air distribution plate lower plate. A recirculation hole is formed in the pipe wall of the resistance pipe. The resistance pipe communicates with the through holes of the air distribution plate upper plate and the air distribution plate lower plate. According to the air distribution plate, certain resistance is set through a Venturi pipe, fluidized air can be evenly distributed conveniently, and the combustion efficiency can be better improved; due to the structure of the Venturi pipe, foreign matter in the boiler can be discharged conveniently, the combustion stability of the boiler can be better improved, and the operation period of the boilercan be prolonged; and in the boiler system based on the air distribution plate, certain resistance is set for the air distribution plate through the Venturi pipe, fluidized air can be evenly distributed conveniently, the combustion efficiency can be better improved, and a smoke recirculation branch is arranged at an outlet of an induced draft fan to communicate with the air distribution plate.

Description

technical field [0001] The invention belongs to the technical field of biomass utilization, and in particular relates to an air distribution plate structure for a biomass boiler, a boiler system and an operating method. Background technique [0002] Biomass mainly refers to lignocellulose such as straw and trees other than grain and fruit in the process of agricultural and forestry production, referred to as lignin, leftovers of agricultural product processing industry, agricultural and forestry waste, and poultry manure and waste in the process of animal husbandry production, etc. substance. Biomass energy is an important part of renewable energy. The efficient development and utilization of biomass energy will play a very positive role in solving energy and ecological environment problems. [0003] At present, there are mainly two types of biomass boilers: grate furnace and fluidized bed. Foreign matter is difficult to discharge, the system reliability is poor, and the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/20F23C10/30
CPCF23C10/20F23C10/30
Inventor 张世鑫刘海峰史磊李楠王海涛高洪培
Owner HUANENG CLEAN ENERGY RES INST
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