CN218209664U - Tar low-nitrogen combustion-supporting device in biomass boiler - Google Patents
Tar low-nitrogen combustion-supporting device in biomass boiler Download PDFInfo
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- CN218209664U CN218209664U CN202222473053.8U CN202222473053U CN218209664U CN 218209664 U CN218209664 U CN 218209664U CN 202222473053 U CN202222473053 U CN 202222473053U CN 218209664 U CN218209664 U CN 218209664U
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Abstract
The utility model discloses a tar low-nitrogen combustion-supporting device in a biomass boiler, which comprises an air distribution system, a mixed combustion-supporting box and a tertiary air distribution system; the tertiary air distribution system comprises two air distribution pipes which are symmetrically arranged on two sides of the side surface of the mixed combustion-supporting box, and the mixed combustion-supporting box comprises an air distribution baffle plate and an air distribution box body; the air distribution box body is internally provided with an air distribution baffle, the air distribution system is communicated with the mixed combustion-supporting box once, the mixed combustion-supporting box is divided into two paths, one path is directly connected to the lower part of the head of the boiler burner, and the other path is connected to the left side and the right side of the boiler hearth through the tertiary air distribution system. This low-nitrogen combustion-supporting of tar in biomass boiler stove can promote further pyrolysis of accumulational tar in the biomass boiler stove, the burning, and this combustion-supporting can be accurate send into the air distribution in the furnace tar concentration regional, improves combustion-supporting effect to avoid tar burning insufficient, cause the boiler to emit the emergence of black cigarette phenomenon even, thereby solve the technical problem among the background art.
Description
Technical Field
The utility model relates to a tar combustion-supporting technical field, in particular to tar low-nitrogen combustion-supporting device in biomass boiler stove.
Background
When the biomass gas boiler operates, due to the fact that the biomass gas contains a certain amount of tar components, when the gas enters a burner head of a boiler combustion chamber through a pipeline, the tar in the gas can be attached to the wall of a metal inner cavity of the burner, and the tar continuously flows to the interior of a hearth along the burner head along with the time, and is aggregated into a pile; the accumulated tar is low in combustion speed and insufficient in combustion, and black smoke is easily generated, so that the stable and environment-friendly operation of the boiler is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tar low-nitrogen combustion-supporting device in biomass boiler furnace for solving the technical problem, thereby effectively solving the technical problem.
The utility model discloses a realize through following technical scheme:
a tar low-nitrogen combustion-supporting device in a biomass boiler comprises an air distribution system, a mixed combustion-supporting box and a tertiary air distribution system; the tertiary air distribution system comprises two air distribution pipes which are symmetrically arranged on two sides of the side surface of the mixed combustion-supporting box, and the mixed combustion-supporting box comprises an air distribution baffle plate and an air distribution box body; the air distribution box body is internally provided with an air distribution baffle, the air distribution system is communicated with the mixed combustion-supporting box once, the mixed combustion-supporting box is divided into two paths, one path is directly connected to the lower part of the head of a boiler burner, and the other path is connected to the left side and the right side of a boiler hearth through the tertiary air distribution system.
The air distribution system comprises a fan, a primary air adjusting door and a primary air pipe; the fan and the mixed combustion-supporting box are communicated together through a primary air pipe, and a primary air adjusting door is arranged on the primary air pipe.
The mixed combustion-supporting box also comprises a secondary air pipe and a secondary air adjusting door; the mixed combustion-supporting box is connected to the lower part of the machine head of the boiler burner through a secondary air pipe, and a secondary air adjusting door is arranged on the secondary air pipe.
The tertiary air distribution system comprises a left air distribution pipe, a left adjusting valve, a right air distribution pipe and a right adjusting valve; the left side and the right side of the boiler furnace are both provided with interfaces; left side cloth tuber pipe one end is connected to on the left side of mixing combustion-supporting case, and on the other end was connected to boiler furnace left side interface, is provided with the left side governing valve on the cloth tuber pipe of left side, and on right side cloth tuber pipe one end was connected to on the right side of mixing combustion-supporting case, the other end was connected to on the interface of boiler furnace right side, is provided with the right side governing valve on the cloth tuber pipe of right side.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a tar low-nitrogen combustion-supporting in biomass boiler stove can promote further pyrolysis of accumulational tar in the biomass boiler stove, burning, and this combustion-supporting can be accurate send into the air distribution furnace in the tar region of assembling, improves combustion-supporting effect to avoid tar burning inadequately, cause the emergence of boiler black smoke phenomenon even, thereby solve the technical problem in the background art.
Drawings
FIG. 1 is a schematic diagram of the biomass boiler with a tar low-nitrogen combustion supporting device installed;
fig. 2 is the structure schematic diagram of the mixed combustion-supporting box provided by the utility model.
Wherein, 1 is a wind distribution system; 2, a mixed combustion-supporting box; 3 is a tertiary air distribution system; 4, a boiler; 11 is a fan; 12 is a primary damper; 13 is a primary air pipe; 21 is a secondary air pipe; 22 is a secondary air adjusting door; 23 is a wind distribution baffle; 24 is a gas distribution box body; 31 is a left air distribution pipe; 32 is a left regulating valve; 33 is a right air distribution pipe; and 34 is a right regulating valve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
Example 1:
referring to fig. 1 to 2, a tar low-nitrogen combustion-supporting device in a biomass boiler comprises an air distribution system 1, a mixed combustion-supporting box 2 and a tertiary air distribution system 3; the tertiary air distribution system 3 comprises two air distribution pipes which are symmetrically arranged on two sides of the side surface of the mixed combustion-supporting box, and the mixed combustion-supporting box 2 comprises an air distribution baffle plate 23 and an air distribution box body 24; an air distribution baffle plate 23 is arranged in the air distribution box body 24, the air distribution system 1 is communicated with the mixed combustion-supporting box 2 once, the mixed combustion-supporting box 2 is divided into two paths, one path is directly connected to the lower part of the head of the boiler burner, and the other path is connected to the left side and the right side of the boiler hearth through the tertiary air distribution system 3.
Specifically, the air distribution system 1 comprises a fan 11, a primary air adjusting door 12 and a primary air pipe 13; the fan 11 and the mixed combustion-supporting box 2 are communicated together through a primary air pipe 13, and the primary air pipe 13 is provided with a primary air adjusting door 12; the mixed combustion-supporting box 2 also comprises a secondary air pipe 21 and a secondary air adjusting door 22; the mixed combustion-supporting box 2 is connected to the lower part of the head of the boiler burner through a secondary air pipe 21, and a secondary air adjusting door 22 is arranged on the secondary air pipe 21; the tertiary air distribution system 3 comprises a left air distribution pipe 31, a left adjusting valve 32, a right air distribution pipe 33 and a right adjusting valve 34; the left side and the right side of the boiler furnace are both provided with interfaces; on left side cloth tuber pipe 31 one end was connected to the left side of mixing combustion-supporting case 2, on the other end was connected to boiler furnace left side interface, was provided with left side governing valve 32 on the cloth tuber pipe 31 of left side, on right side cloth tuber pipe 33 one end was connected to the right side of mixing combustion-supporting case 2, on the other end was connected to boiler furnace right side interface, was provided with right side governing valve 34 on the cloth tuber pipe 33 of right side.
Example 2:
referring to fig. 1 to 2, a tar low-nitrogen combustion-supporting device in a biomass boiler comprises an air distribution system 1, a mixed combustion-supporting box 2 and a tertiary air distribution system 3.
The air distribution system 1 comprises a fan 11, a primary air adjusting door 12 and a primary air pipe 13; the mixed combustion-supporting box 2 comprises a secondary air pipe 21, a secondary air regulating door 22, an air distribution baffle plate 23 and an air distribution box body 24; the tertiary air distribution system 3 comprises two air distribution pipes which are symmetrically arranged on two sides of the side surface of the air box.
Further, a primary air damper 12 is arranged between the fan 11 and the mixed combustion-supporting box 2, and the fan and the mixed combustion-supporting box are connected together through a primary air pipe 13.
Further, a secondary air adjusting door 22 is arranged on the mixed combustion-supporting box 2 and is connected to the lower portion of the machine head of the boiler burner through a secondary air pipe 21.
Further, the tertiary air distribution system 3 is provided with two paths of connectors which are respectively arranged on the left side and the right side of the boiler furnace and comprise a left air distribution pipe 31, a left adjusting valve 32, a right air distribution pipe 33 and a right adjusting valve 34; on left side cloth tuber pipe 31 one end was connected to the left side of mixing combustion-supporting case 2, on the other end was connected to boiler furnace left side interface, was provided with left side governing valve 32 on the cloth tuber pipe 31 of left side, on right side cloth tuber pipe 33 one end was connected to the right side of mixing combustion-supporting case 2, on the other end was connected to boiler furnace right side interface, was provided with right side governing valve 34 on the cloth tuber pipe 33 of right side.
As shown in figure 1, a tar low-nitrogen combustion-supporting device in a biomass boiler is characterized in that a mixed combustion-supporting box 2 is arranged at the middle pivot position of an air distribution system 1 and a tertiary air distribution system 3, so as to play the roles of pressure equalization and air homogenization, and meanwhile, air regulating valves are arranged on air distribution pipeline systems connected with the mixed combustion-supporting box 2, the tertiary air distribution system 3 and a boiler 4, so that the flexibility of regulating the combustion-supporting system is ensured.
The specific implementation mode is as follows:
the fan 11 sends combustion-supporting air into the mixed combustion-supporting box 2 through the primary air pipe 13, and the flow rate is adjusted by the primary air adjusting door 12. After the combustion-supporting air enters the mixed combustion-supporting box 2, the combustion-supporting air is sent into the boiler 4 in three parts after the expansion pressure equalizing of the mixed combustion-supporting box 2 and the air equalizing action of the internal air distribution baffle plate 23, wherein one part of the combustion-supporting air enters the left side of the boiler through the left air distribution pipe 31 and the left regulating valve 32 of the tertiary air distribution system 3, the other part of the combustion-supporting air enters the right side of the boiler through the right air distribution pipe 33 and the right regulating valve 34 of the tertiary air distribution system 3, and the other part of the combustion-supporting air enters the lower part of a burner of the boiler 4 through the secondary air pipe 21 and the secondary air regulating valve 22. The regulating action through left side governing valve 32 and right side governing valve 34, realize the strong offset of cubic cloth wind, and then destroy the tar and pile up the condition, avoid getting into the piling up of tar in the furnace, further cooperation is by the combustion-supporting wind that secondary tuber pipe 21 sent into, realize the fast pyrolysis of tar, the burning, the concentration in high temperature combustion area has also been avoided to the strong turbulent flow of cubic cloth wind, very big reduction heating power type NOx's production, the nitrogen oxide emission of flue gas has been reduced, and then the discharge to reach standard of boiler pollutant has been promoted, the steady operation.
The utility model provides a tar low-nitrogen combustion-supporting in biomass boiler stove can promote the further pyrolysis of accumulational tar in the biomass boiler stove, burning, can be accurate send into the air distribution in the furnace tar concentration region, improve combustion-supporting effect to avoid tar burning insufficient, cause the boiler to emit the emergence of black cigarette phenomenon even, thereby solve the problem in the background art.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A tar low-nitrogen combustion-supporting device in a biomass boiler is characterized by comprising an air distribution system (1), a mixed combustion-supporting box (2) and a tertiary air distribution system (3); the tertiary air distribution system (3) comprises two air distribution pipes which are symmetrically arranged on two sides of the side surface of the mixed combustion-supporting box, and the mixed combustion-supporting box (2) comprises an air distribution baffle plate (23) and an air distribution box body (24); an air distribution baffle plate (23) is arranged in the air distribution box body (24), the air distribution system (1) is communicated with the mixed combustion-supporting box (2) for one time, the mixed combustion-supporting box (2) is divided into two paths, one path is directly connected to the lower part of the head of a boiler burner, and the other path is connected to the left side and the right side of a boiler hearth through the tertiary air distribution system (3).
2. The tar low-nitrogen combustion-supporting device in the biomass boiler as recited in claim 1, wherein the air distribution system (1) comprises a fan (11), a primary air damper (12) and a primary air pipe (13); the fan (11) and the mixed combustion-supporting box (2) are communicated together through a primary air pipe (13), and a primary air adjusting door (12) is arranged on the primary air pipe (13).
3. The tar low-nitrogen combustion improver in the biomass boiler according to claim 1, wherein the tertiary air distribution system (3) comprises a left air distribution pipe (31), a left regulating valve (32), a right air distribution pipe (33) and a right regulating valve (34); the left side and the right side of the boiler furnace are both provided with interfaces; on left side cloth tuber pipe (31) one end was connected to the left side of mixing combustion-supporting case (2), the other end was connected to boiler furnace left side interface, was provided with left side governing valve (32) on left side cloth tuber pipe (31), on right side cloth tuber pipe (33) one end was connected to the right side of mixing combustion-supporting case (2), the other end was connected to boiler furnace right side interface, was provided with right side governing valve (34) on right side cloth tuber pipe (33).
4. The tar low-nitrogen combustion supporting device in the biomass boiler as recited in any one of claims 1, 2 or 3, wherein the mixing combustion supporting box (2) further comprises a secondary air pipe (21) and a secondary air damper (22); the mixed combustion-supporting box (2) is connected to the lower part of the head of the boiler burner through a secondary air pipe (21), and a secondary air adjusting door (22) is arranged on the secondary air pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222473053.8U CN218209664U (en) | 2022-09-19 | 2022-09-19 | Tar low-nitrogen combustion-supporting device in biomass boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222473053.8U CN218209664U (en) | 2022-09-19 | 2022-09-19 | Tar low-nitrogen combustion-supporting device in biomass boiler |
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| Publication Number | Publication Date |
|---|---|
| CN218209664U true CN218209664U (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222473053.8U Active CN218209664U (en) | 2022-09-19 | 2022-09-19 | Tar low-nitrogen combustion-supporting device in biomass boiler |
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| CN (1) | CN218209664U (en) |
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