Unlock instant, AI-driven research and patent intelligence for your innovation.

Air cap structure with adjustable resistance for fluidized bed boiler

A fluidized bed boiler and hood technology, which is applied in the field of fluidized bed boilers, can solve problems such as difficulty in adjustment, easy fall off of the hood, reverse stringing, etc., and achieve the effect of a stable hood

Active Publication Date: 2021-11-09
HARBIN BOILER
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the air cap is easy to fall off in the air cap structure of the fluidized bed boiler, the ash in the furnace will flow back to the air chamber through the inner pipe, and the resistance characteristics of the air cap are constant and difficult to adjust, and then provide a fluidized bed boiler. Adjustable resistance hood structure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air cap structure with adjustable resistance for fluidized bed boiler
  • Air cap structure with adjustable resistance for fluidized bed boiler
  • Air cap structure with adjustable resistance for fluidized bed boiler

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0024] DETAILED DESCRIPTION One: Combination Figure 1 to 5 In the present embodiment, the present embodiment is an adjustable resistance of the fluidized bed boiler, which includes a streamlined hood cover 1, a positioning plate 2, a porous housing inner tube 3, an adjustable inner tube 4 And put the gray-shaped hood 5, the porous hood inner tube 3 vertically disposed, the streamlined housing cover 1 is fastened to the top of the porous housing in the tube 3 and passed through the snap, the upper portion of the porous housing in the tube 3 is streamlined hood cover 1 cover The partial portion along the circumferential sections opens a plurality of air holes a, flow line-type hood outer cover 1, along the circumference, etc., the plurality of air holes B, the positioning plate 2 horizontal is set on the porous housing in the tube 3, the flow line type housing cover 1 lower edge Through the positioning plate 2 and the streamlined housing cover 1 fixed connection, the lower portion o...

specific Embodiment approach 2

[0025] DETAILED DESCRIPTION 2: Combination Figure 1 to 5 In the present embodiment, the flow line shaped housing outer cover 1 of the present embodiment is a circular table structure, and the outer surface of the streamlined housing outer cover 1 is a smooth streamline type. Such settings, the wind pressure of the hat facade exit is slowly released, and the overall windy wind is uniform. Other components and connection relationships are identical to those of the specific embodiments.

specific Embodiment approach 3

[0026] Specific Embodiment 3: Combination Figure 1 to 5 In the present embodiment, the air hole B on the flow line housing 1 of the present embodiment is a tapered hole. As such, the air hole B uses a conical hole, and the air hole B is gradually expanded from the inner, and the flow line-type housing cover 1 resistance is increased compared to the conventional circular hole, it is also possible to prevent the ash from being re-stringed inside the housing by air hole B. Other components and connection relationships are the same as those of the specific embodiments.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an air cap structure with adjustable resistance for a fluidized bed boiler, and relates to the technical field of fluidized bed boilers. The problems that according to a fluidized bed boiler air cap structure, an air cap is prone to falling off, ash in a boiler reversely flows into an air chamber through an inner pipe, and the resistance characteristic of the air cap is constant and difficult to adjust are solved. A streamline air cap outer cover is buckled on the top of a porous air cap inner pipe and connected with the porous air cap inner pipe through a buckle, a plurality of air outlet holes a are formed in the part, covered with the streamline air cap outer cover, of the top of the porous air cap inner pipe, a plurality of air outlet holes b are formed in the streamline air cap outer cover, and the lower edge of the streamline air cap outer cover is fixedly connected with the streamline air cap outer cover through a positioning plate. A plurality of rows of air inlet holes are sequentially formed in the lower portion of the porous air cap inner pipe from bottom to top, an adjustable inner pipe sleeve is arranged on the lower portion of the porous air cap inner pipe in a sleeving mode and connected with the porous air cap inner pipe through a buckle, and an ash discharging blocking plate is horizontally fixed to the lower end face of the porous air cap inner pipe. The air cap does not fall off, dust does not reversely flow to an air chamber through the air cap, and the resistance of an air distribution plate is adjustable.

Description

Technical field [0001] The present invention relates to the technical field of fluidized bed boilers, and more particularly to a hood structure for an adjustable resistance of a fluidized bed boiler. Background technique [0002] For fluidized bed boilers (hereinafter referred to as CFB boilers), the wind uniformity directly affects the reliability of the boiler. Traditional CFB boilers use large-diameter clock hood, hood hood adopts a spherical structure, and some hood hoods will have a blowpage, and the furnace and the bed are in the inner tube. Phenomenon. And there is only one form in the hood cover and the inner tube opening, and the restriction characteristics of the hood are constant. [0003] In summary, the existing fluidized bed boiler hood has a problem that the hood is easy to fall off, and the furnace is in the inner tube anti-string to the wind chamber, and the problem of constant characteristics and difficult to regulate. Inventive content [0004] It is an object...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/20
CPCF23C10/20Y02E20/34
Inventor 孙向文赵翠晶马玉喜朱英伟曲道志姜孝国王君峰王刚
Owner HARBIN BOILER