CN217247829U

CN217247829U - Denitration device for oil-fired boiler

Info

Publication number: CN217247829U
Application number: CN202220592084.2U
Authority: CN
Inventors: 黄鑫鑫; 黄江涛; 黄胜建
Original assignee: Shanghai Qihuang Energy Saving Equipment Co ltd
Current assignee: Shanghai Qihuang Energy Saving Equipment Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-08-23
Anticipated expiration: 2032-03-17

Abstract

The utility model discloses an oil fired boiler denitrification facility belongs to flue gas dust removal technical field. The denitration device of the oil-fired boiler comprises a dedusting smoke tube, wherein the upper end and the lower end of the dedusting smoke tube are respectively and fixedly connected with a connecting flue, the center of the dedusting smoke tube is fixedly connected with a central tube body, and two sides of the central tube body are provided with connecting holes, and the two sides of the connecting holes are communicated with the output end of a spray liquid atomization tank through a guide tube; a threaded sleeve is movably clamped in the central tube body, and the inner thread of the threaded sleeve is in meshed connection with a gear groove of the transmission gear disc; the upper side and the lower side of the transmission gear plate are respectively movably sleeved with a limiting sleeve, the outer edge of the limiting sleeve is fixedly connected with a mounting frame, and the tail end of the mounting frame is fixedly connected with the inner wall of the dust removal smoke tube; the utility model provides an among the prior art position of shower head comparatively fixed, the one-way circulation of flue gas is shorter in the time that stops in the dust remover moreover, and it is limited to spray the absorptive smoke and dust of liquid, difficult problem that reaches higher dust collection efficiency.

Description

Denitration device for oil-fired boiler

Technical Field

The utility model relates to a flue gas dust removal technical field specifically is oil fired boiler denitrification facility.

Background

Compared with NOx generated by the reaction of natural oxygen and pyrolysis products of nitrogen elements in coal and the oxidation reaction of other nitrogen, NOx generated in the combustion process of oil-fired boilers, coal-fired boilers, automobile emission and the like accounts for 75-90% of the total amount of the whole NOx in the environment, so that the combustion process is a main source of the NOx. Nitrogen oxides NOx generated in the combustion process, wherein the nitrogen monoxide NO accounts for 95 percent, and the nitrogen dioxide NO2 accounts for 5 percent; NOx is a main factor for forming acid rain, and blue smoke with strong irritation can be generated to reduce visibility, so that eyes of pedestrians are red, swollen and lacrimated, a respiratory system is stimulated, lung functions are damaged, rubber is cracked, and plant leaves are poisoned and yellow to cause harmfulness, such as withering and death; therefore, oil boilers and the like have become a large source of NOx pollutants, and in order to protect the environment and reduce pollution, the oil boilers need to be denitrated.

In the prior art, the spraying mode is also commonly adopted for dedusting and purifying the flue gas, but because the position of the spray header is fixed, and the staying time of the one-way circulation of the flue gas in the dust remover is short, the smoke and dust absorbed by the spraying liquid is limited, and the higher dedusting efficiency is difficult to achieve; therefore, the utility model provides an oil fired boiler denitrification facility sprays the liquid through the hoop removal to the inside flue gas water conservancy diversion of cooperation body can improve the smoke and dust and spray the collision efficiency of liquid, in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

1. The to-be-solved technical problem of the utility model

An object of the utility model is to provide an oil fired boiler denitrification facility to solve the problem that proposes in the above-mentioned background art:

(1) the position of the spray header in the prior art is relatively fixed, the time of the one-way circulation of the flue gas staying in the dust remover is short, the smoke and dust absorbed by the spray liquid is limited, and the high dust removal efficiency is difficult to achieve.

2. Technical scheme

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

the denitration device of the oil-fired boiler comprises a dedusting smoke tube, wherein the upper end and the lower end of the dedusting smoke tube are respectively and fixedly connected with a connecting flue, the center of the dedusting smoke tube is fixedly connected with a central tube body, connecting holes are formed in two sides of the central tube body, and the connecting holes in the two sides are communicated with the output end of a spray liquid atomization tank through a guide tube.

Preferably, a threaded sleeve is movably clamped inside the central pipe body, and the inner thread of the threaded sleeve is meshed with the gear groove of the transmission gear disc.

Preferably, the upper side and the lower side of the transmission gear plate are respectively and movably sleeved with a limiting sleeve, the outer edge of the limiting sleeve is fixedly connected with a mounting frame, and the tail end of the mounting frame is fixedly connected with the inner wall of the dust removal smoke tube.

Preferably, the center of the two sides of the transmission gear plate is fixedly connected with an extension ring respectively, the inside of the extension ring is provided with purification filler, the two sides of the extension ring are respectively and uniformly provided with a plurality of groups of purification pipes, and the purification pipes are internally provided with air guide pumps.

Preferably, the lower side of the threaded sleeve is fixedly connected with a linkage ring, the outer edge of the linkage ring is provided with a conduction groove, and the conduction groove is communicated with the connecting hole; and the upper side and the lower side of the outer edge of the linkage ring are provided with sealing rings matched with the inner wall of the dust removal smoke pipe, the linkage ring is a hollow ring body, and the inner edge of the linkage ring is uniformly provided with a plurality of groups of injection branch pipes.

Preferably, the lower end of the linkage ring is fixedly connected with a gear ring, the inner edge of the gear ring is connected with a driving wheel in a meshing manner, the lower end of the axle center of the driving wheel is fixedly connected with the upper end of an output shaft of a motor, and the lower part of the motor is fixedly connected with the inner wall of the dust removal smoke pipe through a connecting seat.

3. Advantageous effects

(1) The utility model discloses a set up central body, through spraying the liquid that sprays that liquid atomizing jar leads to the atomizing state in to the linkage circle along the pipe in the flue gas transmission course, the linkage circle drives the injection branch pipe of its inner edge rotatory simultaneously to spray the liquid that sprays under the rotation state, make the smoke and dust that sprays in liquid and the flue gas combine more high-efficient.

(2) The utility model can guide the flue gas in the dedusting smoke pipe along the purification pipe in one way by arranging the air guide pump, and the flue gas is purified and filtered by the purification filler in the extension ring when circulating in the purification pipe, thereby further playing the role of flue gas dedusting; meanwhile, the transmission gear disc guides the flue gas in a rotating state, so that the retention time of the flue gas in the dedusting smoke tube is prolonged, and the flue gas dedusting and purifying effect is better realized.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is a schematic view of a part of the structure of the present invention;

fig. 5 is a schematic view of a part of the structure of the present invention;

fig. 6 is a schematic diagram of a part of the structure of the present invention;

fig. 7 is a schematic diagram six of a partial structure of the present invention.

The reference numbers in the figures illustrate:

1. a dust removal smoke tube; 2. connecting the flue; 3. a central tube body; 4. connecting holes; 5. a threaded sleeve; 6. a transmission gear plate; 7. a mounting frame; 8. a limiting sleeve; 9. a linkage ring; 10. a gear ring; 11. a motor; 12. a drive wheel; 13. a connecting seat; 14. a spray branch pipe; 15. an epitaxial ring; 16. and a purge tube.

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.

Example 1:

referring to fig. 1-7, the denitration device of the oil-fired boiler comprises a dedusting smoke pipe 1, wherein the upper end and the lower end of the dedusting smoke pipe 1 are respectively and fixedly connected with a connecting flue 2, the center of the dedusting smoke pipe 1 is fixedly connected with a central pipe body 3, two sides of the central pipe body 3 are provided with connecting holes 4, and the connecting holes 4 at the two sides are communicated with the output end of a spray liquid atomization tank through a guide pipe;

a threaded sleeve 5 is movably clamped in the central tube body 3, and the internal thread of the threaded sleeve 5 is meshed and connected with a gear groove of a transmission gear disc 6;

the upper side and the lower side of the transmission gear plate 6 are respectively movably sleeved with a limiting sleeve 8, the outer edge of the limiting sleeve 8 is fixedly connected with a mounting frame 7, and the tail end of the mounting frame 7 is fixedly connected with the inner wall of the dust-removing smoke tube 1;

the center of the two sides of the transmission gear plate 6 is fixedly connected with an extension ring 15 respectively, the inside of the extension ring 15 is provided with purification filler, the two sides of the extension ring 15 are respectively and uniformly provided with a plurality of groups of purification tubes 16, and air guide pumps are arranged in the purification tubes 16.

The lower side of the threaded sleeve 5 is fixedly connected with a linkage ring 9, the outer edge of the linkage ring 9 is provided with a conduction groove, and the conduction groove is communicated with the connecting hole 4; sealing rings matched with the inner wall of the dedusting smoke pipe 1 are arranged on the upper side and the lower side of the outer edge of the linkage ring 9, the linkage ring 9 is a hollow ring body, and a plurality of groups of injection branch pipes 14 are uniformly arranged on the inner edge of the linkage ring 9;

the lower end of the linkage ring 9 is fixedly connected with a gear ring 10, the inner edge of the gear ring 10 is engaged and connected with a driving wheel 12, the lower end of the axle center of the driving wheel 12 is fixedly connected with the upper end of an output shaft of a motor 11, and the lower part of the motor 11 is fixedly connected with the inner wall of the dust-removing smoke tube 1 through a connecting seat 13;

the utility model is reasonably arranged in the flue gas transmission pipeline of the garbage incinerator by arranging the central pipe body 3, and one end of the central pipe body is connected with the flue 2 for air intake, and the other end of the central pipe body is connected with the flue 2 for air exhaust; in the flue gas transmission process, spraying liquid in an atomized state is led into the linkage ring 9 along the guide pipe through the spraying liquid atomization tank, meanwhile, air guide pumps in the motor 11 and the purification pipe 16 are started, the motor 11 drives the driving wheel 12 to rotate so as to drive the linkage ring 9 to rotate, the linkage ring 9 drives the injection branch pipes 14 on the inner edge of the linkage ring to rotate, and therefore the spraying liquid is sprayed in a rotating state, and the spraying liquid is combined with smoke dust in the flue gas more efficiently;

in addition, the air guide pump can guide the flue gas in the dedusting smoke pipe 1 along the purification pipe 16 in a one-way mode, and the flue gas is purified and filtered through the purification filler in the extension ring 15 when flowing in the purification pipe 16, so that the dedusting effect of the flue gas is further achieved; meanwhile, the linkage ring 9 rotates to drive the threaded sleeve 5 to synchronously rotate, the threaded sleeve 5 drives the transmission gear disc 6 to rotate through the gear groove on the inner side of the threaded sleeve, and the transmission gear disc 6 guides flue gas in rotation, so that the retention time of the flue gas in the dedusting smoke tube 1 is prolonged, and the flue gas dedusting and purifying effect is better realized.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. Oil fired boiler denitrification facility, including dust removal tobacco pipe (1), its characterized in that: the dust removal smoke tube is characterized in that the upper end and the lower end of the dust removal smoke tube (1) are respectively and fixedly connected with a connecting flue (2), the central center of the dust removal smoke tube (1) is fixedly connected with a center tube body (3), connecting holes (4) are formed in two sides of the center tube body (3), and the connecting holes (4) are communicated with the output end of the spray liquid atomization tank through a guide pipe.

2. The oil-fired boiler denitration device according to claim 1, characterized in that: the inside activity joint of central body (3) has thread bush (5), thread bush (5) internal thread is connected with the gear groove meshing of transmission toothed disc (6).

3. The oil-fired boiler denitration device according to claim 2, characterized in that: stop collar (8) have been cup jointed in the activity respectively to both sides about transmission gear dish (6), stop collar (8) outside edge fixedly connected with mounting bracket (7), mounting bracket (7) end and dust removal tobacco pipe (1) inner wall fixed connection.

4. The oil-fired boiler denitration device according to claim 3, characterized in that: the utility model discloses a solar energy purification device, including transmission gear dish (6), drive gear dish (6) both sides central authorities do not fixedly connected with epitaxial ring (15), the inside purification filler that is provided with of epitaxial ring (15), epitaxial ring (15) both sides evenly are provided with multiunit purge tube (16) respectively, be provided with the air guide pump in purge tube (16).

5. The oil-fired boiler denitration device according to any one of claims 2 to 4, characterized in that: a linkage ring (9) is fixedly connected to the lower side of the threaded sleeve (5), a conduction groove is formed in the outer edge of the linkage ring (9), and the conduction groove is communicated with the connecting hole (4); and sealing rings matched with the inner wall of the dust removing smoke pipe (1) are arranged on the upper side and the lower side of the outer edge of the linkage ring (9), the linkage ring (9) is a hollow ring body, and a plurality of groups of injection branch pipes (14) are uniformly arranged on the inner edge of the linkage ring (9).

6. The oil-fired boiler denitration device according to claim 5, characterized in that: the dust removal smoke pipe is characterized in that a gear ring (10) is fixedly connected to the lower end of the linkage ring (9), a driving wheel (12) is connected to the inner edge of the gear ring (10) in a meshed mode, the lower end of the axis of the driving wheel (12) is fixedly connected with the upper end of an output shaft of a motor (11), and the lower portion of the motor (11) is fixedly connected with the inner wall of the dust removal smoke pipe (1) through a connecting seat (13).