CN211781203U

CN211781203U - Grate plenum air-equalizing device

Info

Publication number: CN211781203U
Application number: CN202020091552.9U
Authority: CN
Inventors: 赵强; 李新华
Original assignee: Qingdao Jiasheng Thermal Power Co ltd
Current assignee: Qingdao Jiasheng Thermal Power Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-27
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a grate plenum air-equalizing device, which comprises an air chamber, wherein an air-equalizing structure is arranged in the air chamber; the wind-equalizing structure comprises: the air conditioner comprises two air inlet pipes, two fans, a partition plate, two rotating motors, two fixing plates, a plurality of bearings, two rotating shafts, a plurality of helical blades, a sliding assembly, a first air equalizing plate and a second air equalizing plate; two the air-supply line is settled respectively in the both sides of plenum, two the fan is connected in two on the air-supply line, the baffle is settled in the middle part of plenum, the utility model relates to a grate is wind equipment technical field all, has avoided appearing strong wind district and weak wind district at the in-process of work, and the effect of wind all is better, and is more ideal, installs rotating electrical machines and helical blade and carries wind for the wind speed is faster, the effectual thermal efficiency that has improved.

Description

Grate plenum air-equalizing device

Technical Field

The utility model relates to a grate air equalizing equipment technical field specifically is a grate plenum air equalizing device.

Background

The existing grate firing boiler generally has the problems of uneven transverse air distribution and distribution, unreasonable air distribution and poor adaptability, so that the heat loss of chemical incomplete combustion and mechanical incomplete combustion is increased, the heat loss of the boiler is larger when the boiler operates under an un-rated working condition, the typical characteristic of uneven air distribution of the grate firing boiler is that fire holes are easy to appear in a grate strong air area, the air quantity of some places is overlarge, and the air quantity of some places is insufficient, so that the incomplete combustion of fuel is caused, the carbon content of ash slag is overhigh, the boiler efficiency is reduced, and the excess air coefficient is increased.

SUMMERY OF THE UTILITY MODEL

The utility model is not enough to prior art, the utility model provides a grate plenum is wind device all, it is uneven to have solved current grate firing boiler ubiquitous and transversely have the air distribution, it is unreasonable to distribute the wind, the poor problem of adaptability, and then chemical incomplete combustion and mechanical incomplete combustion heat loss have been increased, the burner easily appears in strong wind district, fuel combustion is not abundant, it is too high to make the lime-ash carbon content, boiler efficiency has been reduced, and then the excess air factor has been increased, and current grate plenum is wind effect all poor, the air feed speed is slow, at the in-process of the work of grate plenum, burn up the lime-ash can fall in the wind chamber, the ventilation hole easily blocks up, be difficult to clear up, staff's the degree of difficulty problem has been increaseed.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a wind-equalizing device of a grate air chamber comprises an air chamber, wherein a wind-equalizing structure is arranged in the air chamber;

the wind-equalizing structure comprises: the air conditioner comprises two air inlet pipes, two fans, a partition plate, two rotating motors, two fixing plates, a plurality of bearings, two rotating shafts, a plurality of helical blades, a sliding assembly, a first air equalizing plate and a second air equalizing plate;

the two air inlet pipes are respectively arranged on two sides of the air chamber, the two fans are connected to the two air inlet pipes, the partition plate is arranged in the middle of the air chamber, the two rotating motors are arranged at the lower end of the air chamber, the two fixing plates are respectively arranged on the partition plate and the air chamber, the plurality of bearings are respectively arranged at the lower ends of the two fixing plates and the air chamber, the two ends of the rotating shaft are respectively arranged on the plurality of bearings, the plurality of spiral blades are respectively arranged on the two rotating shafts, the sliding assembly is arranged on the inner wall surface of the air chamber, the first air equalizing plate is arranged on the sliding assembly, and the second air equalizing plate is arranged on the air chamber and is positioned at the upper end of the first.

Preferably, the sliding assembly includes: a plurality of electric push rods and a plurality of stop blocks;

the electric push rods are respectively arranged on the inner side wall surface of the air chamber, and the stop blocks are respectively arranged on the first air equalizing plate.

Preferably, the diameters of a plurality of the stop blocks are matched with the through holes in the second air equalizing plate.

Preferably, a plurality of through holes with the same structure are respectively formed in the two fixing plates.

Preferably, a plurality of openings are formed in the inner side wall surface of the air chamber, and a plurality of electric push rods are arranged at the plurality of openings in the inner side wall surface of the air chamber.

Advantageous effects

The utility model provides a grate plenum wind-sharing device possesses following beneficial effect: install first wind equalizing plate and second wind equalizing plate, the effectual strong wind district and the weak wind district of having avoided appearing at the in-process of work because the ventilation hole on first wind equalizing plate and the second wind equalizing plate is crisscross each other for the effect of wind equalizing is better, and is more ideal, installs rotating electrical machines and helical blade and carries wind, makes the wind speed faster, the effectual thermal efficiency that has improved.

Drawings

Fig. 1 is a schematic view of a front view cross-sectional structure of a grate air chamber air-equalizing device of the present invention.

Fig. 2 is a schematic structural view of a grate air chamber air-equalizing device of the present invention.

Fig. 3 is a schematic structural view of a grate air chamber air-equalizing device of the present invention.

In the figure: 1-an air chamber; 2-an air inlet pipe; 3, a fan; 4-a separator; 5-a rotating electrical machine; 6, fixing a plate; 7-a bearing; 8-a rotating shaft; 9-helical blades; 10-a first air equalizing plate; 11-a second air equalizing plate; 12-an electric push rod; 13-stop block.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an air-equalizing device for a grate air chamber.

Example (b): a wind-equalizing device of a grate wind chamber comprises a wind chamber 1, wherein a wind-equalizing structure is arranged in the wind chamber 1;

referring to fig. 1-3, in an implementation process, the wind equalizing structure includes: the air conditioner comprises two air inlet pipes 2, two fans 3, a partition plate 4, two rotating motors 5, two fixing plates 6, a plurality of bearings 7, two rotating shafts 8, a plurality of spiral blades 9, a sliding assembly, a first air equalizing plate 10 and a second air equalizing plate 11; the connection relationship is as follows:

two air-supply lines 2 settle respectively in the both sides of plenum 1, two fans 3 are connected on two air-supply lines 2, baffle 4 settles in the middle part of plenum 1, two rotating electrical machines 5 settle in the lower extreme of plenum 1, two fixed plates 6 settle respectively on baffle 4 and plenum 1, a plurality of bearing 7 settle respectively in two fixed plates 6 and plenum 1 lower extreme, settle respectively on a plurality of bearing 7 at the both ends of two pivot 8, a plurality of helical blade 9 settle respectively on two pivot 8, sliding assembly settles on 1 internal face of plenum, first air-distribution plate 10 settles on sliding assembly, second air-distribution plate 11 settles on plenum 1 and is located first air-distribution plate 10 upper end.

In a specific implementation process, it should be noted that the sliding assembly includes: a plurality of electric push rods 12 and a plurality of stop blocks 13; the connection relationship is as follows:

a plurality of electric push rods 12 are respectively arranged on the inner side wall surface of the air chamber 1, and a plurality of stop blocks 13 are respectively arranged on the first air equalizing plate 10.

From the above general situation it follows that: the detailed connection means is a known technology in the field, and the following main introduces the working principle and process, firstly, the power is switched on, the fan 3 delivers the wind from the air inlet pipe 2 to the inside of the wind chamber 1, the baffle plate 4 is installed for guiding the wind, then the rotating motor 5 starts to rotate, the rotating shaft 8 is driven to rotate through the bearing 7, the helical blade 9 rotates along with the helical blade, the wind is delivered upwards faster in the process of rotating the helical blade 9, the wind is equalized through the first wind equalizing plate 10 and the second wind equalizing plate 11, the wind is more uniform, because the ventilation holes on the first wind equalizing plate 10 and the second wind equalizing plate 11 are staggered with each other, the wind equalizing effect is better, when the work needs to be stopped, the rotating motor 5 stops rotating, the worker controls and operates through the programmable controller which is installed on the rotating motor and is edited with a control program, after the operation is finished, after the electric push rod 12 receives a signal sent by the motor driver, the electric push rod 12 performs stretching movement to drive the first air equalizing plate 10 to move upwards, because the ventilation holes on the first air equalizing plate 10 and the second air equalizing plate 11 are staggered, preferably, further, the diameters of the plurality of stop blocks 13 are matched with the through holes on the second air equalizing plate 11, in the process of upward movement of the first air equalizing plate 10, the air speed of the fan 3 is smaller and smaller, after the stop blocks 13 are completely inserted into the ventilation holes on the second air equalizing plate 11, the fan 3 stops working, the electric push rod 12 also stops stretching movement, and ash is prevented from falling into the air chamber 1.

Preferably, the diameter of the plurality of stoppers 13 is matched with the diameter of the through holes of the second air-equalizing plate 11, and the stoppers 13 are used for blocking the through holes of the second air-equalizing plate 11 when the device is not in use, so as to prevent ash from falling into the air inlet chamber 1.

Preferably, the two fixing plates 6 are respectively provided with a plurality of through holes with the same structure.

Preferably, a plurality of openings are formed on the inner side wall surface of the air chamber 1, and a plurality of electric push rods 12 are arranged at the plurality of openings on the inner side wall surface of the air chamber 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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. A wind-equalizing device of a grate air chamber comprises an air chamber (1), and is characterized in that a wind-equalizing structure is arranged in the air chamber (1);

the wind-equalizing structure comprises: the air conditioner comprises two air inlet pipes (2), two fans (3), a partition plate (4), two rotating motors (5), two fixing plates (6), a plurality of bearings (7), two rotating shafts (8), a plurality of spiral blades (9), a sliding assembly, a first air equalizing plate (10) and a second air equalizing plate (11);

the two air inlet pipes (2) are respectively arranged at two sides of the air chamber (1), the two fans (3) are connected to the two air inlet pipes (2), the partition plate (4) is arranged in the middle of the air chamber (1), the two rotating motors (5) are arranged at the lower end of the air chamber (1), the two fixing plates (6) are respectively arranged on the partition plate (4) and the air chamber (1), the plurality of bearings (7) are respectively arranged at the lower ends of the two fixing plates (6) and the air chamber (1), two ends of the two rotating shafts (8) are respectively arranged on the plurality of bearings (7), the plurality of helical blades (9) are respectively arranged on the two rotating shafts (8), the sliding assembly is arranged on the inner wall surface of the air chamber (1), the first air equalizing plate (10) is arranged on the sliding assembly, the second air-equalizing plate (11) is arranged on the air chamber (1) and is positioned at the upper end of the first air-equalizing plate (10).

2. The grate plenum air distribution unit of claim 1, wherein the slide assembly comprises: a plurality of electric push rods (12) and a plurality of stop blocks (13);

the electric push rods (12) are respectively arranged on the inner side wall surface of the air chamber (1), and the stop blocks (13) are respectively arranged on the first air equalizing plate (10).

3. The grate air chamber air equalizing device of claim 2, wherein the diameter of a plurality of the stoppers (13) is matched with the diameter of the through holes on the second air equalizing plate (11).

4. The grate air chamber air equalizing device of claim 1, wherein a plurality of through holes with the same structure are respectively arranged on the two fixing plates (6).

5. The grate air chamber air equalizing device of claim 2, wherein a plurality of openings are formed on the inner side wall surface of the air chamber (1), and a plurality of electric push rods (12) are arranged at the plurality of openings on the inner side wall surface of the air chamber (1).