Circulating fluidized bed boiler

A circulating fluidized bed and boiler technology, which is applied in the field of thermal equipment, can solve problems such as safety hazards, economic losses, and hazards of circulating fluidized bed boilers, and achieve the effects of improving safety, reducing thermal stress, and increasing strength
CN101818894BActive Publication Date: 2011-10-26TAIYUAN BOILER GROUP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN BOILER GROUP
Publication Date
2011-10-26

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Abstract

The invention discloses a circulating fluidized bed boiler, which belongs to the technical field of thermal power equipment. The circulating fluidized bed boiler consists of an v-shaped hearth, separators, tail flues, a water cooled wall, a middle membrane-type wall, a ribbed plate membrane-type wall, a U-shaped wall and headers, wherein the separators and the tail flues are symmetrically distributed on two sides of the hearth; the middle membrane-type wall divides the hearth into two completely symmetric parts to prevent a bed from titling; the upper part of the middle membrane-type wall is provided with a vent hole to maintain the pressure balance of the hearth; and the airflows in the U-shaped wall flow alternately to reduce the heat difference in the hearth. The circulating fluidized bed boiler avoids the bed tilting phenomenon in the v-shaped hearth of the circulating fluidized bed boiler, has the characteristics of uniform temperature distribution in the hearth and high safety and is a better circulating fluidized bed boiler which is particularly adaptable to the development trend of large circulating fluidized bed boilers.
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Description

technical field

[0001] The invention relates to a circulating fluidized bed boiler, which belongs to the technical field of thermal equipment. Background technique

[0002] Clean coal technology is one of the leading technologies for solving the environmental problems caused by coal in the world, and it is also an important field of international high-tech competition. Circulating fluidized bed combustion technology is one of the most commercialized clean coal combustion technologies at present. Circulating fluidized bed boilers have considerable vitality in the energy and power markets at home and abroad.

[0003] Large-scale is the main development direction of the current circulating fluidized bed boiler. In the process of large-scale development, circulating fluidized bed boilers with pants-leg structure have been produced. Because the circulating fluidized bed boiler with pants leg structure has obvious advantages in the scale-up design, it has also become the first c...

Claims

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