CN217329772U

CN217329772U - Air distribution device of fluidized bed boiler with forced slag discharge pipe

Info

Publication number: CN217329772U
Application number: CN202220283380.4U
Authority: CN
Inventors: 张哲�
Original assignee: BEIJING NOWVA ENERGY TECHNOLOGY CO LTD
Current assignee: BEIJING NOWVA ENERGY TECHNOLOGY CO LTD
Priority date: 2022-02-12
Filing date: 2022-02-12
Publication date: 2022-08-30
Anticipated expiration: 2032-02-12

Abstract

The utility model belongs to the technical field of fluidized bed boiler technique and specifically relates to a fluidized bed boiler air distributor who has compulsory scum pipe, which comprises a furnace, the grid plate of slope is installed to furnace's inside bottom, and the bottom of grid plate is provided with the isobaric plenum, the central point department of putting of grid plate installs central scum pipe, and the decurrent one side of grid plate slope installs two sets of compulsory scum pipes, the inside of grid plate runs through and has seted up a plurality of groups aperture hood. A fluidized bed boiler air distributor that has compulsory scum pipe, at the in-process that uses, through the air distributor of slope, can give the air distributor gravity under the material orientation such as ironware, impurity on the surface, simultaneously, under the effect that the isobaric plenum of air distributor bottom blows, utilize the guide effect of directional hood, carry to the scum pipe to compulsory scum pipe with materials such as these ironware, impurity, improve the production efficiency of boiler greatly.

Description

Air distribution device of fluidized bed boiler with forced slag discharge pipe

Technical Field

The utility model relates to a fluidized bed boiler technical field specifically is a fluidized bed boiler cloth wind device that has forced slag discharging pipe.

Background

The fluidized bed boiler is a boiler adopting a fluidized bed combustion mode, and can be divided into a bubbling fluidized bed boiler and a circulating fluidized bed boiler according to hydrodynamic characteristics, and can be divided into a normal-pressure fluidized bed boiler and a pressurized fluidized bed boiler according to the smoke pressure in a hearth; the existing fluidized bed boiler has certain disadvantages when in use, has stronger fuel adaptability, but when burning inferior fuels such as household garbage and solid wastes, the time is long because impurities such as iron ware and stones lead to uneven fluidization and unsmooth slag discharge, so that the boiler is shut down, and the safe and stable production of the boiler is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fluidized bed boiler wind distribution device who has compulsory slag discharging pipe to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a fluidized bed boiler air distribution device with force scum pipe, includes furnace, the aerofoil of slope is installed to furnace's inside bottom, and the bottom of aerofoil is provided with isobaric plenum, the central point department of putting of aerofoil installs central scum pipe, and the decurrent one side of aerofoil slope installs two sets of compulsory scum pipes, the inside of aerofoil runs through and has seted up a plurality of groups aperture hoods, and the decurrent one side of aerofoil slope is close to compulsory scum pipe position department and installs the directional hood of multiunit.

Preferably, the air distribution plate is obliquely arranged and forms an included angle of 5-8 degrees with the horizontal plane.

Preferably, the number of the small-hole wind caps and the number of the directional wind caps are set according to actual needs, and the directional wind caps have a guiding effect on the inclined wind distribution plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, at the in-process that uses, through the air distribution plate of slope, can give the air distribution plate gravity under the material one orientation such as ironware, impurity on the surface, simultaneously, under the effect that the isobaric plenum in air distribution plate bottom blows, utilize the guide effect of directional hood, carry the material such as these ironware, impurity to forcing the scum pipe, improve the production efficiency of boiler greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of an air distribution device of a fluidized bed boiler with a forced slag discharge pipe according to the present invention;

fig. 2 is a partial view of the air distribution device of the fluidized bed boiler with a forced slag discharge pipe of the present invention.

In the figure: 1. a hearth; 2. an isobaric air chamber; 3. a wind distribution plate; 4. a central slag discharge pipe; 5. a forced slag discharge pipe; 6. A small hole blast cap; 7. and (4) orienting the blast cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a fluidized bed boiler air distribution device with force scum pipe, including furnace 1, the inside bottom of furnace 1 is installed the aerofoil 3 of slope, and the bottom of aerofoil 3 is provided with isobaric plenum 2, the central point department of putting of aerofoil 3 installs central scum pipe 4, and the decurrent one side of aerofoil 3 slope installs two sets of compulsory scum pipes 5, the inside of aerofoil 3 runs through and has seted up a plurality of groups aperture hood 6, and the decurrent one side of aerofoil 3 slope is close to compulsory scum pipe 5 position department and installs multiunit directional hood 7.

The air distribution plate 3 is obliquely arranged and forms an included angle of 5-8 degrees with the horizontal plane.

The number of the small hole wind caps 6 and the number of the directional wind caps 7 are set according to actual needs, and the directional wind caps 7 have a guiding function on the inclined wind distribution plate 3.

It should be noted that the utility model relates to a fluidized bed boiler air distribution device with a forced slag discharge pipe, when in use, primary air of the boiler uniformly enters an air distribution plate 3 after passing through an isobaric air chamber 2, a small hole hood 6 and a directional hood 7 are arranged on the upper part of the air distribution plate 3, and the primary air enters a hearth 2 through the hoods; the fuel is at the slag that air distributor 3 burning generated or the impurity that unburnt, can be through central deslagging pipe 4 or force the 5 boiler that arrange of slag pipe, and, inclined air distributor 3 and directional hood 7, can be with ironware, impurity etc. forced transport to forcing deslagging pipe 5, at this in-process, through inclined air distributor 3, can give air distributor 3 surperficial ironware, the gravity under the material orientation such as impurity, simultaneously, under the effect of the isobaric plenum 2 blowing in air distributor 3 bottom, utilize the guide effect of directional hood 7, force transport these ironware, impurity etc. to forcing deslagging pipe 5, improve the production efficiency of boiler greatly, and is comparatively practical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fluidized bed boiler wind distribution device that has forced slag discharging pipe, includes furnace (1), its characterized in that: the utility model discloses a furnace, including furnace (1), the inside bottom of furnace (1) is installed the aerofoil (3) of slope, and the bottom of aerofoil (3) is provided with isobaric wind chamber (2), the central point department of putting of aerofoil (3) installs central scum pipe (4), and the decurrent one side of aerofoil (3) slope installs two sets of compulsory scum pipe (5), the inside of aerofoil (3) is run through and has been seted up a plurality of groups aperture hood (6), and the decurrent one side of aerofoil (3) slope is close to compulsory scum pipe (5) position department and installs directional hood of multiunit (7).

2. The air distribution device of a fluidized bed boiler with a forced slag discharge pipe according to claim 1, characterized in that: the air distribution plate (3) is obliquely arranged and forms an included angle of 5-8 degrees with the horizontal plane.

3. The air distribution device of a fluidized bed boiler with a forced deslagging pipe in accordance with claim 1, wherein: the number of the small hole blast caps (6) and the number of the directional blast caps (7) are set according to actual needs, and the directional blast caps (7) have a guiding function on the inclined air distribution plate (3).