Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler

A circulating fluidized bed, energy-saving technology, applied in fluidized bed combustion equipment, combustion type, fuel burning in a molten state, etc., can solve the problems of wear of the hood head and hood seat, difficult to replace the hood, and easy slag leakage from the hood. , to achieve significant economic and social benefits, save power consumption, reduce wear and tear

Inactive Publication Date: 2017-05-17
哈尔滨红光锅炉总厂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of easy slag leakage in the existing hood, the serious wear of the hood head and the hood seat, and the high cost and poor economy caused by the difficulty in replacing the hood after wear, and further provides an environmentally friendly and energy-saving circulating fluidization Bell type hood for bed boiler

Method used

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  • Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler
  • Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler
  • Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler

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specific Embodiment approach 1

[0035] Specific implementation mode one: combine Figure 1 to Figure 12 Description of this embodiment, a bell-type hood for an environment-friendly and energy-saving circulating fluidized bed boiler, which includes a hood head 1, the hood head 1 is bell-type, and the lower side walls of the hood head 1 are evenly distributed along its circumferential direction There are several air outlets 1-1, and each air outlet 1-1 on the hood head 1 is arranged obliquely from inside to outside,

[0036] It also includes a protective cover 2 and a hood seat 3, the hood seat 3 includes a cylinder 3-1 and a support plate 3-2, the support plate 3-2 is set on the top of the cylinder 3-1 and is connected with the cylinder 3-1 The outer side wall of the barrel body 2-1 is fixed as a whole, and the protective cover 2 includes a barrel body 2-1 and a positioning ring 2-2 fixedly connected to the outer edge of the barrel body 2-1 opening end, and the barrel body 2-1 opening end is the lower end, T...

specific Embodiment approach 2

[0042] Specific implementation mode two: combination figure 2 , 3, 6, 11, 12 illustrate the present embodiment, the circumferential direction of the support plate 3-2 is evenly distributed with some first positioning blocks 3-21, and the bottom end of the hood head 1 is uniformly distributed with some second positioning blocks 1 along its circumferential direction -2, several first positioning blocks 3-21 are cross-fitted with several second positioning blocks 1-2, and the first positioning blocks 3-21 are welded to the second positioning blocks 1-2. With such a design, the hood head 1 and the support plate 3-2 are connected by spot welding, which facilitates the replacement operation of the hood head 1 . Other compositions and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0043] Specific implementation mode three: combination figure 1 , 2 , 4, 5 illustrate this embodiment, the air outlet 1-1 is a circular air outlet, the number is twelve, and the angle between the central axis of each air outlet 1-1 and the horizontal direction is 10-12 Spend. With such a design, the included angle is preferably 10 degrees, which can make the air flow out of the hood uniform and meet the needs of different air volumes, and the inclined air outlet 1-1 can effectively prevent the bed material from entering the hood and prevent slag leakage. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a bell jar type wind cap for an environment-friendly energy-saving circulating fluidized bed boiler, belongs to the technical field of boiler structures, and solves the problems that a conventional wind cap is liable to slag leakage, a wind cap head and a wind cap seat are severely abraded, and the cost is high and economy is poor due to the fact that the wind cap is uneasy to change after abrasion. The bell jar type wind cap comprises the wind cap head, a protective sleeve and the wind cap seat, wherein the wind cap seat comprises a cylinder and a support plate; the support plate is mounted at the upper part of the cylinder in a sleeving manner; the protective sleeve comprises a barrel body and a locating ring fixedly connected on the outer edge of an open end of the barrel body; a plurality of first through holes are uniformly formed in the side wall of the upper part of the barrel body; a plurality of second through holes are uniformly formed in the top of the barrel body; the wind cap head and the protective sleeve are mounted on the support plate in a buckle manner; the wind cap head is fixedly connected with the support plate; the protective sleeve is positioned between the wind cap head and the wind cap seat; the outer side wall and the top outer edge of the locating ring are in tight contact with the inner wall of the wind cap head; and the wind cap head, the protective sleeve and the cylinder are coaxially arranged. The bell jar type wind cap is used for an air distribute device of the circulating fluidized bed boiler.

Description

technical field [0001] The invention relates to a hood for a circulating fluidized bed boiler, in particular to a bell-type hood for an environment-friendly and energy-saving circulating fluidized bed boiler, and belongs to the technical field of boiler structures. Background technique [0002] In recent years, circulating fluidized bed boilers have been widely used in power generation, industrial production and central heating, and environmental protection performance, energy saving effect and stable operation are necessary conditions to ensure the development of circulating fluidized bed boilers to high parameters and large capacity. In the circulating fluidized bed boiler, the fluidized bed is located at the bottom of the furnace, and the water-cooled air chamber is located below the furnace fluidized bed. , the lower part is connected to the water-cooled air chamber, and the primary air enters the furnace and the fluidized bed material evenly through the air cap. Its fun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/20
CPCF23C10/20F23C2206/10
Inventor 张福强刘志明张爱兰张辉
Owner 哈尔滨红光锅炉总厂有限责任公司
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