CN215929555U

CN215929555U - Low-nitrogen burner with flue gas purification function

Info

Publication number: CN215929555U
Application number: CN202122416314.8U
Authority: CN
Inventors: 李小燕; 李若兰; 梁明珍
Original assignee: Jinjiang Minxiang Machinery Technology Co ltd
Current assignee: Jinjiang Minxiang Machinery Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-03-01
Anticipated expiration: 2031-10-08

Abstract

The utility model belongs to the technical field of low-nitrogen burners, and particularly relates to a low-nitrogen burner with a flue gas purification function. This low nitrogen combustor with gas cleaning function, purify the air that gets into combustor body surface air-blast end through setting up filter equipment, when utilizing filter screen among the filter equipment and filter core to filter the air that gets into in the air-intake pipe, keep fixed under the effect of inserted bar and dog through first mount and second mount, make in first mount after the dust is piled up on the surface of filter screen, the effort on air-blast end pair first mount surface increases, and then make first mount deflection and rise the inserted bar extrusion, make the air current pass through first mount direct contact second mount, thereby make to have and be convenient for keep the abundant characteristics of air flow when purifying the air that gets into the combustor.

Description

Low-nitrogen burner with flue gas purification function

Technical Field

The utility model relates to the technical field of low-nitrogen combustors, in particular to a low-nitrogen combustor with a smoke purification function.

Background

The low-nitrogen combustion is an environment-friendly combustion technology, and in order to adapt to the requirements of environment-friendly development, on the basis of boiler gas coal substitution, the low-nitrogen combustion technology is also vigorously researched and developed in the boiler industry in recent years, nitrogen oxides discharged by the low-nitrogen combustion technology can be reduced by more than 50% compared with conventional combustion, the low-nitrogen combustion is carried out by various means, such as controlling the proportion of fuel and combustion air, the combustion temperature and the staged combustion technology, and carriers of the technologies are realized on a combustor, namely a low-nitrogen combustor, by adjusting combustion air and a combustion head;

the surface of the existing low-nitrogen combustor is provided with an air blowing end, combustion-supporting air is injected into the combustor through an air blower structure in the air blowing end, and due to the fact that a large amount of dust particles are mixed in air of a working environment where the low-nitrogen combustor is located, the purity of the air is reduced when the low-nitrogen combustor burns, the working efficiency of the low-nitrogen combustor is reduced on one hand, and on the other hand, due to insufficient combustion, a large amount of smoke is generated, so that air pollution is caused, and therefore most of the air blowing ends of the existing low-nitrogen combustor are provided with an air purification structure, and smoke generated by combustion is purified;

however, the existing air purification structure for the low-nitrogen combustor mostly filters air only through the filter screen, and in the actual use process, especially in a dust environment, impurities in the air are accumulated on the surface of the filter screen due to long-time use, so that the efficiency of the air flowing into the low-nitrogen combustor is hindered, combustion-supporting air is insufficient, and the low-nitrogen combustor is not convenient to use.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the air filtering structure of the existing low-nitrogen combustor obstructs air circulation, the utility model provides the low-nitrogen combustor with the smoke purification function.

The low-nitrogen combustor with the smoke purification function comprises a combustor body, wherein an air blowing end is arranged on the surface of the combustor body, a filtering device is arranged on the surface of the side wall of the combustor body, the filtering device comprises a filtering net, and the filtering device filters air entering the air blowing end through the filtering net.

Preferably, the outer side surfaces of the two filter screens are respectively provided with a first fixing frame and a second fixing frame, one end surface of the first fixing frame and one end surface of the second fixing frame are both fixedly connected with a rotating shaft, and the lower ends of the two rotating shafts are both rotatably connected with an air inlet pipe;

through above-mentioned technical scheme, utilize first mount and second mount to pass through rotation axis and intake-tube connection to be convenient for the other end of first mount and the other end of second mount swing in the intake-tube, and distribute through first mount and second mount slope in the intake-tube, thereby be convenient for drive the filter screen slope on surface, and then increase the area of contact of filter screen and air, improve air purification efficiency.

Preferably, the upper surface of the air inlet pipe is provided with an air cavity, the first fixing frame and the second fixing frame are both positioned in the air cavity, the first fixing frame and the second fixing frame are alternately distributed in the air cavity, the upper surface of the air inlet pipe is provided with a cover plate, and the lower surface of the cover plate is rotatably connected with the upper end of the rotating shaft;

through above-mentioned technical scheme, utilize the apron to seal the opening of intake pipe upper end to be convenient for install and change the structure in the intake pipe through opening and close of apron.

Preferably, the surface of the cover plate is inserted with inserting rods in a sliding manner, the lower end surfaces of the inserting rods are in a conical shape, and the surfaces of the two inserting rods are respectively connected with the surface of the first fixing frame and the surface of the second fixing frame in a sliding manner;

through above-mentioned technical scheme, the lower extreme that utilizes the inserted bar is most advanced decurrent coniform to be convenient for extrude the lower order of inserted bar through the surface of first mount and the surface of second mount, make the inserted bar rise, and connect the upper surface of inserted bar upper end and apron through the stay cord, thereby be convenient for prevent that the inserted bar from droing.

Preferably, the upper surface of the front end of the cover plate is provided with an air groove, the interior of the air groove is communicated with the interior of the air cavity, the inner side wall of the air groove is fixedly connected with a screen, the inner side wall of the air cavity is fixedly connected with a stop block, and the surfaces of the side walls of the two stop blocks are distributed to be in contact with the surface of the other end of the first fixing frame and the surface of the other end of the second fixing frame;

through above-mentioned technical scheme, utilize the screen cloth of large aperture to carry out preliminary screening to the air that gets into in the intake pipe to be convenient for avoid large granule debris to get into in the intake pipe and cause the hindrance to the work of first mount and second mount.

Preferably, the inner side wall of the rear end of the air cavity is fixedly connected with a clamping block, and the inner wall of the clamping block is clamped with a filter plate;

through above-mentioned technical scheme, utilize and install the filter core in the filter to be convenient for increase the purifying effect to the air that gets into in the blast air end.

The beneficial effects of the utility model are as follows:

purify the air that gets into combustor body surface air blast end through setting up filter equipment, utilize filter screen and filter core among the filter equipment to carry out filterable when getting into the air-intake pipe air, keep fixed under the effect of inserted bar and dog through first mount and second mount, make in first mount the surface of filter screen pile up behind the dust, the effort on air blast end pair first mount surface increases, and then make first mount deflect and will insert the bar extrusion and rise, make the air current pass through first mount direct contact second mount, thereby make to have and be convenient for keep the sufficient characteristics of air flow when purifying the air that gets into the combustor.

Drawings

FIG. 1 is a schematic view of a low-nitrogen burner with flue gas purification function according to the present invention;

FIG. 2 is a perspective view of a gas inlet pipe structure of a low-nitrogen burner with a flue gas purification function according to the present invention;

FIG. 3 is a perspective view of a cover plate structure of a low-nitrogen burner with a flue gas purification function according to the present invention.

In the figure: 1. a burner body; 2. a blast end; 3. a filter screen; 31. a first fixing frame; 32. a second fixing frame; 33. a rotating shaft; 34. an air inlet pipe; 35. an air cavity; 36. a cover plate; 37. inserting a rod; 4. an air tank; 5. screening a screen; 6. a stopper; 7. a clamping block; 8. a filter plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a low-nitrogen burner with a flue gas purification function comprises a burner body 1, wherein an air blowing end 2 is arranged on the surface of the burner body 1, a filtering device is arranged on the surface of the side wall of the burner body 1, the filtering device comprises a filter screen 3, and the filtering device filters air entering the air blowing end 2 through the filter screen 3;

furthermore, the outer side surfaces of the two filter screens 3 are respectively provided with a first fixing frame 31 and a second fixing frame 32, one end surface of the first fixing frame 31 and one end surface of the second fixing frame 32 are both fixedly connected with a rotating shaft 33, the lower ends of the two rotating shafts 33 are both rotatably connected with an air inlet pipe 34, and the first fixing frame 31 and the second fixing frame 32 are connected with the air inlet pipe 34 through the rotating shaft 33, so that the other end of the first fixing frame 31 and the other end of the second fixing frame 32 can swing in the air inlet pipe 34 conveniently, and are obliquely distributed in an air pipe through the first fixing frame 31 and the second fixing frame 32, so that the filter screens 3 on the surfaces can be driven to be inclined, the contact area between the filter screens 3 and air is increased, and the air purification efficiency is improved;

further, an air cavity 35 is formed in the upper surface of the air inlet pipe 34, the first fixing frame 31 and the second fixing frame 32 are both located in the air cavity 35, the first fixing frame 31 and the second fixing frame 32 are alternately distributed in the air cavity 35, a cover plate 36 is installed on the upper surface of the air inlet pipe 34, the lower surface of the cover plate 36 is rotatably connected with the upper end of the rotating shaft 33, the cover plate 36 is used for sealing an opening in the upper end of the air inlet pipe 34, and therefore the structure in the air inlet pipe 34 can be conveniently installed and replaced through opening and closing of the cover plate 36;

furthermore, the surface of the cover plate 36 is slidably inserted with the insertion rods 37, the lower end surfaces of the insertion rods 37 are conical, the surfaces of the two insertion rods 37 are respectively slidably connected with the surface of the first fixing frame 31 and the surface of the second fixing frame 32, and the lower ends of the insertion rods 37 are conical with downward tips, so that the insertion rods 37 can be conveniently pressed by the surfaces of the first fixing frame 31 and the second fixing frame 32, the insertion rods 37 rise, and the upper ends of the insertion rods 37 and the upper surface of the cover plate 36 are connected by pull ropes, so that the insertion rods 37 can be conveniently prevented from falling off;

furthermore, an air groove 4 is formed in the upper surface of the front end of the cover plate 36, the interior of the air groove 4 is communicated with the interior of the air cavity 35, a screen 5 is fixedly connected to the inner side wall of the air groove 4, a stop block 6 is fixedly connected to the inner side wall of the air cavity 35, the surface distribution of the side walls of the two stop blocks 6 is in contact with the surface of the other end of the first fixing frame 31 and the surface of the other end of the second fixing frame 32, and the air entering the air inlet pipe 34 is primarily screened by using the screen 5 with a large aperture, so that the situation that large-particle impurities enter the air pipe to block the work of the first fixing frame 31 and the second fixing frame 32 is avoided;

further, the rear end inside wall fixedly connected with fixture block 7 of air cavity 35, the inner wall joint of fixture block 7 has filter 8, utilizes the installation filter core in filter 8 to be convenient for increase the purifying effect to the air that gets into in blast air end 2.

Purify the air that gets into combustor body 1 surface air blast end 2 through setting up filter equipment, utilize filter screen 3 among the filter equipment and filter core to filter the air that gets into in the intake pipe 34, through first mount 31 and second mount 32 keep fixed under the effect of inserted bar 37 and dog 6, make in first mount 31 after the dust is piled up on the surface of filter screen 3, air blast end 2 increases the effort on first mount 31 surface, and then make first mount 31 deflect and will insert bar 37 extrusion rise, make the air current cross first mount 31 direct contact second mount 32, thereby make to have and be convenient for keep the abundant characteristics of air flow when purifying the air that gets into the combustor.

The working principle is as follows:

swinging the first fixing frame 31 and the second fixing frame 32 to enable the swinging end of the first fixing frame 31 and the swinging end of the second fixing frame 32 to be in contact with the surface of the stop block 6, closing the cover plate 36, and pressing the inserting rod 37 downwards to enable the surface of the inserting rod 37 to block the deflection of the first fixing frame 31 and the second fixing frame 32;

starting the burner body 1, the burner body 1 sucks air inwards through the air blower in the air blowing end 2, the air enters the air cavity 35 through the air groove 4 on the surface of the cover plate 36, and filters large-particle impurities through the screening of the screen 5, the air flow in the air cavity 35 sequentially passes through the filter screen 3 on the surface of the first fixing frame 31, the filter screen 3 on the surface of the second fixing frame 32 and the filter element in the filter plate 8, and then enters the burner body 1 to perform combustion reaction, when the air flow passes through the filter screen 3 on the surface of the first fixing frame 31, impurities in the air are adhered on the surface of the filter screen 3 on the surface of the first fixing frame 31, the surface of the filter screen 3 is blocked while the air is purified, the circulation of the air in the air cavity 35 is blocked, when the impurities are adhered on the surface of the filter screen 3, the acting force of the air flow sucked by the air blowing end 2 on the first fixing frame 31 is increased, so that the lower end of the inserted rod 37 is extruded by the first fixing frame 31, so that the insertion rod 37 rises, one side of the first fixing frame 31 loses resistance and is opened in the air cavity 35, and the air flow in the air cavity 35 passes through the first fixing frame 31 and is directly blown to the surface of the second fixing frame 32, and is filtered and purified through the filter screen 3 on the surface of the second fixing frame 32.

The above description is only for 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 should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a low nitrogen combustor with gas cleaning function, includes combustor body (1), its characterized in that: the air blowing end (2) is arranged on the surface of the burner body (1), the filtering device is arranged on the surface of the side wall of the burner body (1) and comprises a filtering screen (3), the filtering device filters air entering the air blowing end (2) through the filtering screen (3), a first fixing frame (31) and a second fixing frame (32) are respectively arranged on the outer side surfaces of the two filtering screens (3), a rotating shaft (33) is fixedly connected to one end surface of the first fixing frame (31) and one end surface of the second fixing frame (32), an air inlet pipe (34) is rotatably connected to the lower ends of the two rotating shafts (33), an air cavity (35) is formed in the upper surface of the air inlet pipe (34), the first fixing frame (31) and the second fixing frame (32) are both located in the air cavity (35), and the first fixing frame (31) and the second fixing frame (32) are alternately distributed in the air cavity (35), the upper surface mounting of intake pipe (34) has apron (36), the lower surface of apron (36) is rotated with the upper end of rotation axis (33) and is connected.

2. The low-nitrogen combustion machine with the flue gas purification function according to claim 1, characterized in that: the surface of the cover plate (36) is inserted with inserting rods (37) in a sliding mode, the lower end surface of each inserting rod (37) is conical, and the surfaces of the two inserting rods (37) are connected with the surface of the first fixing frame (31) and the surface of the second fixing frame (32) in a sliding mode respectively.

3. The low-nitrogen combustion machine with the flue gas purification function according to claim 1, characterized in that: the air tank (4) has been seted up to the front end upper surface of apron (36), the inside and the inside intercommunication of air cavity (35) of air tank (4), the inside wall fixedly connected with screen cloth (5) of air tank (4), the inside wall fixed connection dog (6) of air cavity (35), two the lateral wall surface distribution of dog (6) and the other end surface contact of the other end surface of first mount (31) and second mount (32).

4. The low-nitrogen combustion machine with the flue gas purification function according to claim 1, characterized in that: the rear end inner side wall of the air cavity (35) is fixedly connected with a clamping block (7), and the inner wall of the clamping block (7) is clamped with a filtering plate (8).