CN217763475U - Flue gas heating burner - Google Patents
Flue gas heating burner Download PDFInfo
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- CN217763475U CN217763475U CN202222052983.6U CN202222052983U CN217763475U CN 217763475 U CN217763475 U CN 217763475U CN 202222052983 U CN202222052983 U CN 202222052983U CN 217763475 U CN217763475 U CN 217763475U
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- burner
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- flue
- flue gas
- combustor
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Abstract
The utility model relates to a chemical plant equipment correlation field especially relates to a flue gas heating combustor, including combustor barrel, changming lamp, support frame, combustion-supporting wind pipeline, gas pipeline and installation body, the combustor barrel sets up in the flue center and installs through the support frame, is connected with changming lamp and combustion-supporting wind pipeline on combustor barrel one side respectively, and combustor barrel bottom is connected with the gas pipeline. The utility model discloses a side-mounting of combustor from the flue, the combustor fire door is at the flue center, the flame direction is unanimous with the flue gas flow direction, its design has avoided flame to the direct burning of flue wall and has erodeed, the effectual scaling loss of protecting the flue wall, compare in the side burn (flame intersects with the flue gas is perpendicular), the flue gas in its design flame can more even heating flue, make the out-of-stock temperature steady, the fluctuation of temperature has been reduced, thereby make burning flame and flue gas homogeneous mixing, the gas temperature after the heating is more stable.
Description
Technical Field
The utility model relates to a chemical plant equipment correlation field especially relates to an auxiliary device that industrial boiler flue gas was taken off sale, and this equipment main function is a combustor that heats the flue gas that industrial boiler produced to the temperature interval that can take off the sale.
Background
At present, the national environmental protection requirement on the emission of atmospheric pollution is stricter and stricter, and enterprises also take a plurality of technical improvement measures in order to respond to national policies. The flue gas generated by an industrial boiler generally generates a large amount of NOx which is a main atmospheric pollutant, and how to reduce the NOx emission, various enterprises have thought of a plurality of methods for reducing the NOx emission at the source, such as adopting a low NOx emission combustor, but also reducing the NOx emission at the rear section, such as SCR, SNCR denitration, SCR, SNCR and low-temperature section adding medicament denitration. Actually, SCR and SNCR reduce NOx into N by a reduction method; the low-temperature section denitration is to oxidize NO into NO by an oxidation method to finally generate nitrate and water.
The flue gas temperature of an industrial boiler has influence on the denitration rate, for example, the SNCR denitration method requires the flue gas temperature to be between 850 ℃ and 1200 ℃, and the denitration rate is higher; below this temperature range, the denitration rate is low. The SCR denitration method requires the flue gas temperature to be between 300 and 420 ℃. The low-temperature oxidation denitration method requires that the flue gas temperature is between 50 ℃ and 150 ℃, and the flue gas denitration effect is influenced to a certain extent when the temperature is lower or higher.
At present, the flue gas temperature of some industrial boilers cannot reach the optimal denitration temperature, so the denitration temperature is required to be met by heating through a burner, and in order to meet the market requirement, the flue gas heating burner provided has a certain market prospect.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a flue gas heating combustor to solve above-mentioned technical problem.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a flue gas heating combustor, including the combustor barrel, the changming lamp, the support frame, combustion-supporting wind pipeline, gas pipeline and installation body, the combustor barrel sets up in the flue center and installs through the support frame, be connected with changming lamp and combustion-supporting wind pipeline on combustor barrel one side respectively, and combustor barrel bottom is connected with gas pipeline, the changming lamp, combustion-supporting wind pipeline, gas pipeline all installs on the installation body, and be provided with mounting flange and flue flange interface row on the installation body and join in marriage to being connected.
Preferably, the combustor barrel comprises a flame stabilizing cover, an outer barrel, a flame stabilizing inner barrel, a gas burner and a swirler, one end of the outer barrel is fixedly connected with the support frame, the other end of the outer barrel is connected with a combustion-supporting air pipeline, the flame stabilizing cover is arranged at the upper end of the outer barrel, the flame stabilizing inner barrel is arranged inside the outer barrel, the upper end of the flame stabilizing inner barrel is connected with the flame stabilizing cover, the swirler is arranged at the bottom of the flame stabilizing inner barrel, the gas burner is arranged at the bottom of the swirler, and the bottom of the gas burner is in butt joint with the gas pipeline.
Preferably, the flame stabilizing cover is in a horn shape, and more than two small holes are uniformly distributed on the peripheral side wall of the flame stabilizing cover and are fixed on the outer barrel through bolts.
Preferably, the direction of the combustor can and its internal combustion flame is in line with the direction of the flue gas flow.
Preferably, the combustor cylinder is installed at the side of the flue, so that the direction of the combustion flame of the combustor cylinder is 90 degrees to the installation direction.
Preferably, one side of the flame stabilizing cover is connected with the pilot burner, and a high-energy ignition rod is arranged in the pilot burner.
Preferably, the upper end of the outer side of the flame stabilizing inner cylinder is provided with more than two through holes, and an interlayer is formed between the outer side of the flame stabilizing inner cylinder and the inner side of the outer cylinder.
Preferably, the gas burner is provided with more than two gas burners which are uniformly distributed at the lower end of the flame stabilizing inner barrel, the port of each gas burner is flush with the lower end of the cyclone, and the upper end of the cyclone is provided with a circular panel.
Preferably, the installation body is respectively provided with a fire observation hole, a fire detection interface, a pilot burner connection interface, a gas interface and a combustion-supporting air interface.
Preferably, the installation body is internally provided with heat preservation cotton.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a side-mounting of combustor from the flue, the combustor fire door is at the flue center, the flame direction is unanimous with the flue gas flow direction, its design has avoided flame to the direct burning of flue wall and has erodeed, the effectual scaling loss of protecting the flue wall, compare in the side burn (flame intersects with the flue gas is perpendicular), the flue gas in its design flame can more even heating flue, make the out-of-stock temperature steady, the fluctuation of temperature has been reduced, thereby make burning flame and flue gas homogeneous mixing, the gas temperature after the heating is more stable.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic cross-sectional view taken along the line A of FIG. 1 according to the present invention;
fig. 3 is a schematic top view of the present invention.
Reference numbers in the figures: the burner comprises a burner barrel body-1, a pilot burner-2, a support frame-3, a combustion-supporting air pipeline-4, a gas pipeline-5, an installation body-6, a flue-7, a flame stabilizing cover-11, an outer barrel-12, a flame stabilizing inner barrel-13, a gas burner-14, a swirler-15, a fire observation hole-61, a fire detection interface-62, a pilot burner connection interface-63, a gas interface-64, a combustion-supporting air interface-65 and a smoke flow direction-a.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As shown in fig. 1 and fig. 3, the present invention provides a flue gas heating burner, which comprises a burner barrel 1, a pilot lamp 2, a support frame 3, a combustion-supporting air duct 4, a gas duct 5 and an installation body 6;
the combustor cylinder 1 is arranged in the center of a flue 7 and is installed through a support frame 3, the support frame 3 can effectively ensure that the combustor cylinder 1 is arranged in the center, the stability of a combustor is ensured, one side of the combustor cylinder 1 is respectively connected with an incandescent lamp 2 and a combustion-supporting air pipeline 4, the bottom of the combustor cylinder 1 is connected with a gas pipeline 5, the combustion-supporting air pipeline 4 and the gas pipeline 5 can connect external gas and combustion-supporting air to burners inside the combustor, stable and continuous combustion media are provided for the combustor, the combustion of the combustor is ensured, the incandescent lamp 2, the combustion-supporting air pipeline 4 and the gas pipeline 5 are all installed on an installation body 6, the combustion-supporting air pipeline 4 and the gas pipeline 5 can introduce the combustion-supporting air and the gas into the combustor cylinder 1 from the outer side of a panel of the installation body 6, the installation body 6 is an installation connection carrier of the combustor, an installation flange is arranged on the installation body 6 and is connected with a flange connector of the flue 7 in a matched mode to fix the combustor, the combustor is ensured that the combustor can be effectively sealed after the combustor is installed, and the flue gas is prevented from leaking from an installation opening;
it should be noted that the combustion-supporting air pipeline 4 and the gas pipeline 5 in this embodiment are flow channels for combustion-supporting air and gas media, and are made of high-temperature-resistant materials, so as to effectively resist the erosion of high-temperature flue gas.
As shown in fig. 1 and fig. 3, in the present embodiment, the combustor casing 1 includes a flame stabilizing cover 11, an outer cylinder 12, a flame stabilizing inner cylinder 13, a gas burner 14, and a swirler 15, one end of the outer cylinder 12 is fixedly connected to the support frame 3, the other end is connected to the combustion-supporting air pipeline 4, the upper end of the outer cylinder 12 is provided with the flame stabilizing cover 11, the flow of the flue gas around the flame can be effectively avoided, the inner cylinder 13 is provided inside the outer cylinder 12, and the upper end of the inner cylinder 13 is connected to the flame stabilizing cover 11, after the gas is injected, the gas is firstly combusted in the inner cylinder 13, the upper end of the outer side of the inner cylinder 13 is provided with more than two through holes, an interlayer is formed between the outer side of the inner cylinder 13 and the inner side of the outer cylinder 12, the bottom of the inner cylinder 13 is provided with the swirler 15, the combustion-supporting air enters the inner cylinder 13 from the swirler 15 to form first-stage combustion with the gas, the gas forms second-stage combustion with the interlayer between the inner side of the outer cylinder 12 and the outer cylinder 13, the air staging combustion-stage combustion is favorable for reducing the NOx emission of the burner, and can enhance the mixing of the gas with the swirler, so that the gas and the swirler so that the combustion-supporting air is more stable combustion is more stable, the combustion of the bottom of the swirler 15 is provided with the gas pipeline 5;
the flame stabilizing cover 11 is horn-shaped and hollow, the flame range can be effectively expanded due to the shape, the divergent combustion of the flame of a burner is facilitated, more than two small holes are uniformly distributed on the peripheral side wall of the flame stabilizing cover 11, the mixing of smoke and flame is enhanced, the flame stabilizing cover 11 is fixed on the outer barrel 12 through bolts, and the flame stabilizing cover 11 is fixed through the bolts and is convenient to disassemble and replace;
the direction of the combustor cylinder 1 and the internal combustion flame thereof is consistent with the direction a of flue gas flow; the combustor cylinder 1 is arranged on the side surface of the flue 7, so that the direction of the combustion flame of the combustor cylinder 1 is 90 degrees to the direction of the arrangement, the design avoids the direct burning and washing of the flame to the flue wall, the burning loss of the flue wall is effectively protected, and compared with side burning (the flame is vertically crossed with the flue gas), the designed flame can more uniformly heat the flue gas in the flue, so that the denitration temperature is stable, and the temperature fluctuation is reduced;
it should be noted that, the flame stabilizing cover 11 in this embodiment is made of a high temperature resistant material, and can ensure that the flame of the burner keeps stable combustion, effectively avoid the streaming of the flue gas to the root of the flame, avoid the flame from escaping, and enhance the stable combustion of the flame.
The pilot lamp 2 is inserted to the sidewall of the flame stabilizing cover 11 from the outside of the panel of the installation body 6 through the guide tube, the pilot lamp 2 ignites for the burner, the connection of the flame stabilizing cover 11 and the pilot lamp 2 is realized, the stable combustion of the burner can be ensured, and the remote and on-site automatic ignition can be realized by arranging the high-energy ignition rod in the pilot lamp 2;
the gas burner 14 is provided with more than two gas burners which are uniformly distributed at the lower end of the flame stabilizing inner barrel 13, the ports of the gas burners 14 are flush with the lower end of the swirler 15, the upper end of the swirler 15 is provided with a circular panel, the gas burners 14 spray the mixture to the direction of the swirler 15 at the periphery and mix with the combustion-supporting air at the bottom of the swirler 15, and the mixture is combusted in the flame stabilizing inner barrel 13;
as shown in fig. 2, the installation body 6 in this embodiment is a connection entity for installing a burner, and is a carrier of other external connection pipes, and is provided with a fire observation hole 61, a fire detection interface 62, an incandescent lamp connection interface 63, a gas interface 64, and a combustion-supporting air interface 65;
wherein, at the inside heat preservation cotton that is equipped with of installation body 6, it is cotton to keep warm can effectively prevent that the flame temperature from the installing port excessive to can guarantee to install 6 outside personnel avoid scalding when operating.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a flue gas heating combustor which characterized in that: the burner is characterized by comprising a burner cylinder (1), a pilot lamp (2), a support frame (3), a combustion-supporting air pipeline (4), a gas pipeline (5) and an installation body (6), wherein the burner cylinder (1) is arranged at the center of a flue (7) and is installed through the support frame (3), the pilot lamp (2) and the combustion-supporting air pipeline (4) are respectively connected to one side of the burner cylinder (1), the bottom of the burner cylinder (1) is connected with the gas pipeline (5), the pilot lamp (2), the combustion-supporting air pipeline (4) and the gas pipeline (5) are all installed on the installation body (6), and the installation body (6) is provided with a mounting flange which is connected with the flue (7) in a flange connector arrangement mode.
2. The flue gas heating burner of claim 1, wherein: combustor barrel (1) is including flame stabilization cover (11), urceolus (12), flame stabilization inner tube (13), gas burner (14), swirler (15), urceolus (12) one end and support frame (3) fixed connection, combustion-supporting wind pipeline (4) are connected to the other end, urceolus (12) upper end is provided with flame stabilization cover (11), urceolus (12) inside is provided with flame stabilization inner tube (13), and flame stabilization inner tube (13) upper end is connected with flame stabilization cover (11), flame stabilization inner tube (13) bottom is provided with swirler (15) to swirler (15) bottom is provided with gas burner (14), gas burner (14) bottom and gas pipeline (5) dock.
3. The flue gas heating burner of claim 2, wherein: the flame stabilizing cover (11) is horn-shaped, and the peripheral side wall of the flame stabilizing cover (11) is evenly provided with more than two small holes and is fixed on the outer cylinder (12) by bolts.
4. A flue gas heating burner as recited in claim 2, wherein: the direction of the combustor cylinder (1) and the internal combustion flame thereof is consistent with the direction of flue gas flow (a).
5. A flue gas heating burner as recited in claim 3, wherein: the combustor cylinder body (1) is installed on the side surface of the flue (7), so that the direction of the combustion flame of the combustor cylinder body (1) and the installation direction form a 90-degree direction.
6. The flue gas heating burner of claim 2, wherein: one side of the flame stabilizing cover (11) is connected with the incandescent lamp (2), and a high-energy ignition rod is arranged in the incandescent lamp (2).
7. The flue gas heating burner of claim 2, wherein: the upper end of the outer side of the flame stabilizing inner cylinder (13) is provided with more than two through holes, and an interlayer is formed between the outer side of the flame stabilizing inner cylinder (13) and the inner side of the outer cylinder (12).
8. The flue gas heating burner of claim 2, wherein: the gas burner (14) is provided with more than two gas burners which are uniformly distributed at the lower end of the flame stabilizing inner barrel (13), the port of each gas burner (14) is flush with the lower end of the swirler (15), and the upper end of the swirler (15) is provided with a circular panel.
9. A flue gas heating burner as recited in claim 1, wherein: the fire-fighting lamp is characterized in that the mounting body (6) is respectively provided with a fire observation hole (61), a fire detection interface (62), a pilot burner connecting interface (63), a gas interface (64) and a combustion-supporting air interface (65).
10. A flue gas heating burner as recited in claim 1, wherein: the installation body (6) is internally provided with heat insulation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222052983.6U CN217763475U (en) | 2022-08-04 | 2022-08-04 | Flue gas heating burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222052983.6U CN217763475U (en) | 2022-08-04 | 2022-08-04 | Flue gas heating burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217763475U true CN217763475U (en) | 2022-11-08 |
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ID=83879184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222052983.6U Active CN217763475U (en) | 2022-08-04 | 2022-08-04 | Flue gas heating burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217763475U (en) |
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2022
- 2022-08-04 CN CN202222052983.6U patent/CN217763475U/en active Active
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