CN218442263U

CN218442263U - Air distribution device of fluidized bed

Info

Publication number: CN218442263U
Application number: CN202222693434.7U
Authority: CN
Inventors: 张红建; 王军伟; 张龙; 张洪峰; 杨先斌; 孙永峰
Original assignee: Henan Jinkai Chemical Investment Holding Group Co ltd
Current assignee: Henan Jinkai Chemical Investment Holding Group Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-02-03
Anticipated expiration: 2032-10-13

Abstract

The application provides a fluidized bed air distribution device which comprises an inner air cap and an outer air cap, wherein the inner air cap is screwed on an air distribution pipe, and the side wall of the inner air cap is provided with an inner air hole; the outer hood is screwed on the inner hood, and the side wall of the outer hood is provided with an outer air hole; the inclination directions of the inner air hole and the outer air hole are opposite to the screwing direction of the inner air cap and the outer air cap. The counter-acting force generated when primary air is discharged from the inner air hole and the outer air hole is utilized, the inner air cap and the outer air cap can be screwed up, and the stability of integral connection is guaranteed.

Description

Air distribution device of fluidized bed

Technical Field

The application relates to the field of fluidized bed equipment, in particular to a fluidized bed air distribution device.

Background

The hood is now an important part of the fluidized bed air distribution structure. When the wind cap is used, the wind cap is welded on the top of the wind distribution pipe in a spot mode, primary wind flows into the wind cap through the wind distribution pipe and is discharged from the wind outlet hole of the wind cap. However, this connection method has a certain defect that the primary wind blows directly to the top of the wind cap, which easily causes the wind cap to fall off from the wind distribution pipe.

The inventor researches and discovers that the existing blast cap connecting mode has the following defects:

the wind cap causes a reduction in connection stability due to the top portion thereof being directly blown by a primary wind.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a fluidized bed air distribution device, it can avoid the hood to result in the connection stability to reduce because of its top is directly blown by a wind.

The embodiment of the application is realized as follows:

the application provides a fluidized bed cloth wind device includes:

the inner blast cap is screwed on the air distribution pipe, and the side wall of the inner blast cap is provided with an inner air hole;

the outer hood is screwed on the inner hood, and an outer air hole is formed in the side wall of the outer hood;

the inclination directions of the inner air hole and the outer air hole are opposite to the screwing direction of the inner air cap and the outer air cap.

In an alternative embodiment, the inner hood is configured as a cylinder with a closed top as a whole.

In an alternative embodiment, the inner wind holes are evenly distributed along the circumference of the inner hood.

In an alternative embodiment, the air inlet of the inner air duct is located above the air outlet.

In an alternative embodiment, the outer hood is configured as a cylinder with a closed top as a whole.

In an alternative embodiment, the outer wind holes are evenly distributed along the circumference of the outer hood.

In an alternative embodiment, the air inlet of the outer air aperture is located above the air outlet.

In an alternative embodiment, the outer wind aperture is located entirely below the inner wind aperture.

In an alternative embodiment, the outer wind apertures are maintained in a misaligned arrangement with the inner wind apertures.

In an alternative embodiment, the outer wind apertures have the same inclination angle as the inner wind apertures.

The beneficial effects of the embodiment of the application are that:

in conclusion, this embodiment provides a fluidized bed air distribution device, and when using, the interior hood is flowed into via the air distribution pipe to the wind to from the lateral wall of interior wind hole blowing outside hood, finally discharge via outer wind hole, its reaction force that produces when utilizing once wind to discharge from interior wind hole and outer wind hole can make interior hood and outer hood produce the trend of screwing up, has guaranteed the stability of monolithic connection.

Drawings

Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, it being understood that the embodiments described below are merely illustrative of the present application and are not limiting on the scope of the present application, and in which:

FIG. 1 is a schematic view of a fluidized bed air distribution device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a fluidized bed air distribution device according to an embodiment of the present application;

reference numerals:

10. an inner hood;

20. an outer hood;

30. distributing an air pipe;

11. an inner air hole;

21. an outer air hole;

31. an air distribution plate.

Detailed Description

At present, an air cap is spot-welded on the top of an air distribution pipe, primary air flows into the air cap through the air distribution pipe and is discharged from an air outlet of the air cap. However, this connection method has a certain defect that the primary wind blows directly to the top of the wind cap, which easily causes the wind cap to fall off from the wind distribution pipe.

Referring to fig. 1-2, in view of the above, the inventor has devised a fluidized bed air distribution device capable of preventing the connection stability of the hood from being lowered due to the primary air blowing from the top of the hood.

Example 1

In this embodiment, the fluidized bed air distribution device includes:

the inner hood 10 is screwed on the air distribution pipe 30, and an inner air hole 11 is formed in the side wall of the inner hood 10;

the outer hood 20 is screwed on the inner hood 10, and an outer air hole 21 is formed in the side wall of the outer hood 20;

the inclination directions of the inner wind hole 11 and the outer wind hole 21 are opposite to the screwing direction of the inner wind cap 10 and the outer wind cap 20.

In this embodiment, when the fluidized bed air distribution device is used, primary air flows into the inner hood 10 through the top of the air distribution pipe 30, blows towards the inner side wall of the outer hood 20 from the inner air hole 11, and is finally discharged through the outer air hole 21, and the primary air can be screwed up between the inner hood 10 and the outer hood 20 by using a reaction force generated when the primary air is discharged from the inner air hole 11 and the outer air hole 21, so that the stability of the overall connection is ensured.

In this embodiment, optionally, the inner hood 10 is configured to be a cylinder with a closed top as a whole, the top of the inner hood 10 is a spherical surface protruding outward, the inner air holes 11 are uniformly distributed along the circumferential direction of the inner hood 10, and the inner air holes 11 are arranged obliquely with respect to the axis of the inner hood 10 as a whole, specifically, the air inlet of the inner air hole 11 is located above the air outlet thereof, so that the flow direction of the primary air discharged from the inner air hole 11 is obliquely downward.

It should be noted that the inner air hole 11 extends spirally on the side wall of the inner air cap 10, and the extending direction of the inner air hole is opposite to the screwing direction of the inner air cap 10, so that when the primary air is discharged from the inner air hole 11, the inner air cap 10 can be screwed, and the stability of the connection of the inner air cap 10 on the air distribution pipe 30 is ensured.

It should be further noted that the air distribution pipe 30 integrally penetrates through the air distribution plate 31, the inner hood 10 is integrally located above the air distribution plate 31, the lower port of the inner hood 10 abuts against the air distribution plate 31, and the air distribution plate 31 can limit the distance that the inner hood 10 is screwed on the air distribution pipe 30.

In this embodiment, optionally, the outer wind cap 20 is configured to be a cylinder with a closed top as a whole, the top of the outer wind cap 20 is a spherical surface protruding outward, the outer wind holes 21 are uniformly distributed along the circumferential direction of the outer wind cap 20, and the outer wind holes 21 are arranged obliquely with respect to the axis of the outer wind cap 20 as a whole, specifically, the air inlets of the outer wind holes 21 are located above the air outlets thereof, so that the flow direction of the primary wind exhausted from the outer wind holes 21 is obliquely downward.

The outer wind holes 21 extend in a spiral shape on the side wall of the outer wind cap 20 in a direction opposite to the tightening direction of the outer wind cap 20, so that the outer wind cap 20 tends to be tightened when primary wind is discharged from the outer wind holes 21, thereby ensuring the stability of the connection of the outer wind cap 20 to the inner wind cap 10.

It should be noted that the outer hood 20 is integrally sleeved outside the inner hood 10 and located above the air distribution plate 31, the lower port of the outer hood 20 abuts against the air distribution plate 31, and the air distribution plate 31 can limit the distance that the outer hood 20 is screwed on the air distribution pipe 30.

In this embodiment, optionally, the outer air holes 21 are located entirely below the inner air holes 11, and the outer air holes 21 and the inner air holes 11 are maintained in a staggered arrangement, and meanwhile, the outer air holes 21 and the inner air holes 11 have equal inclination angles.

According to the fluidized bed air distribution device of this embodiment, it utilizes the reaction force that once wind produced when discharging from interior wind gap and outer wind gap, can make interior hood and outer hood produce the trend of screwing up, has guaranteed the stability of monolithic integration.

Although embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A fluidized bed air distribution device is characterized by comprising:

the inner blast cap is screwed on the air distribution pipe, and the side wall of the inner blast cap is provided with inner air holes;

the inclination directions of the inner blast holes and the outer blast holes are opposite to the screwing direction of the inner blast cap and the outer blast cap.

2. The fluidized bed air distribution device of claim 1,

the inner hood is configured as a cylindrical shape with a closed top as a whole.

3. The fluidized bed air distribution device of claim 2,

the inner air holes are uniformly distributed along the circumferential direction of the inner air cap.

4. The fluidized bed air distribution device of claim 3,

and the air inlet of the inner air hole is positioned above the air outlet.

5. The fluidized bed air distribution device of claim 4,

the outer hood is configured in a cylindrical shape with a closed top as a whole.

6. The fluidized bed air distribution device of claim 5,

the outer air holes are uniformly distributed along the circumferential direction of the outer air cap.

7. The fluidized bed air distribution device of claim 6,

and the air inlet of the outer air hole is positioned above the air outlet.

8. The fluidized bed air distribution device of claim 7,

the outer air hole is located below the inner air hole as a whole.

9. The fluidized bed air distribution device of claim 8,

the outer air holes and the inner air holes are arranged in a staggered mode.

10. The fluidized bed air distribution device of claim 9,

the outer wind holes and the inner wind holes have the same inclination angle.