CN216159082U - Flue gas heating burner for flue gas desulfurization and denitrification - Google Patents
Flue gas heating burner for flue gas desulfurization and denitrification Download PDFInfo
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- CN216159082U CN216159082U CN202122265453.5U CN202122265453U CN216159082U CN 216159082 U CN216159082 U CN 216159082U CN 202122265453 U CN202122265453 U CN 202122265453U CN 216159082 U CN216159082 U CN 216159082U
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Abstract
The utility model discloses a flue gas heating burner for flue gas desulfurization and denitration, which comprises a burner main body, wherein the burner main body is directly arranged in a flue, the burner main body is only provided with a gas pipeline and is not provided with a combustion air pipe, the flue is provided with a channel hole, and the gas pipeline enters from the channel hole and is connected with the burner main body. The utility model has simple structure and convenient maintenance, and can burn in the flue through large-area mixing of fuel gas and flue gas, has wide flame area and uniform flue gas temperature, and effectively controls the phenomenon of overhigh local temperature, thereby greatly reducing the emission of the generated NOX and meeting the emission standard requirement.
Description
Technical Field
The utility model relates to the technical field of industrial flue gas desulfurization and denitrification, in particular to a flue gas heating combustor for industrial flue gas desulfurization and denitrification, which is mainly used for enterprises such as steel plants, smelting plants, cement production, chemical industry and the like, and is matched with desulfurization and denitrification environment-friendly equipment for reaching the standard of flue gas emission so as to provide a heat source for flue gas heating.
Background
In the existing mature flue gas desulfurization and denitration technology, the raw flue gas needs to be heated before entering desulfurization and denitration equipment, the existing popular heating modes comprise hot blast stove heating and combustion furnace heating, and the heating equipment comprises a hot blast stove or a combustion furnace body, a combustor, an air blower and the like. The equipment in the temperature rising mode has poor temperature rising uniformity and high local temperature, and the emission of NOX generated after combustion hardly meets the emission standard requirement; and the equipment structure is complicated, the electric energy consumed by the system is large, and the maintenance is inconvenient.
Disclosure of Invention
The utility model aims to provide a special burner which is simple in structure, simple in maintenance, safe and reliable in use, and directly installed in a flue, flue gas before being heated is used as combustion-supporting air of the burner, generated flame is dispersed through a flame cutting technology, and the temperature of the flue gas after being heated is more uniform and stable than that of other equipment in a heating mode.
The technical scheme adopted by the utility model is as follows: the utility model provides a flue gas intensification combustor for flue gas desulfurization denitration, including the combustor main part, combustor main part direct mount is in the flue, the gas pipeline is only established to the combustor main part, does not establish combustion air pipe, it has the passage hole to open on the flue, the gas pipeline gets into from the passage hole, with the combustor main part is connected.
The burner main body is installed in the flue through an installation method and an installation support.
The combustor main body comprises a gas main pipe, a gas spray pipe, a flame stabilizing disc, an air guide plate, an ignition device and a fire detection system, wherein the gas main pipe, the gas spray pipe, the flame stabilizing disc, the air guide plate, the ignition device and the fire detection system are all fixed on a mounting flange.
The main gas pipe, the gas spray pipe, the flame stabilizing disc and the air guide plate are arranged on the mounting flange in a welding mode, and the ignition device and the fire detection system are arranged on the mounting flange in a threaded connection mode.
The working principle of the utility model is described as follows: after entering the gas main pipe, the gas is sprayed out from the front of the flame stabilizing disc through the gas spray pipe; part of smoke in the flue enters a flame stabilizing disc area to be mixed with gas under the action of an air guide plate, then the gas is ignited to form flame under the ignition action of an ignition device, the combustion is finished in a combustion area, and a fire detection system monitors the flame and transmits a signal to a control system; finally, the flue gas after combustion and the original flue gas before being heated are mixed together, so that the flue gas is heated and is provided for subsequent equipment for treatment.
The air guide plate guides the air into the flame stabilizing disc and the combustion area, and then the air is mixed with the fuel gas and combusted, the combustion flame is long and bar-shaped, the flame area is wide, the temperature of the temperature field is uniform, the flame temperature is not too high, and the conditions for generating nitrogen oxides are poor, so that the nitrogen oxide emission of the combusted flue gas is quite low, and the burden of subsequent equipment is reduced.
The utility model takes the original flue gas in the flue as combustion-supporting air and aerodynamic force, the burner main body is directly arranged in the flue, an additional blower is saved, the three-phase electricity of the power supply is changed into single-phase electricity, and the electricity consumption is less than 1 kw; meanwhile, the body of the hot blast stove or the combustion furnace is also saved, the emission of nitrogen oxides is quite low, the operation cost is quite low, and the economic benefit is quite considerable.
The utility model saves a combustion-supporting air pipe, a blower, a hot blast stove or a combustion furnace body, thereby having simple structure and convenient maintenance, and effectively controlling the phenomenon of overhigh local temperature by mixing fuel gas and flue gas in a large area and burning in a flue, having wide flame area and even flue gas temperature, thereby greatly reducing the emission of the generated NOX and meeting the emission standard requirement.
Drawings
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 the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
FIG. 1 is a schematic structural diagram of a flue gas temperature-rising burner for desulfurization and denitrification of flue gas according to the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a block diagram of the burner body of the present invention;
FIG. 4 is a plan view of FIG. 3;
in the figure, 1, a gas main pipe; 2. a gas nozzle; 3. a flame stabilizing disc; 4. an air deflector; 5. an ignition device; 6. a fire detection system; 7. installing a flange; 8. mounting a bracket; 9. a flue; 10. a fire observation hole; 11. heating the pre-heating flue gas; 12. a combustion zone; 13. and heating the flue gas.
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 the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As can be seen from fig. 1 and 2, the utility model is a flue gas temperature-rising burner for flue gas desulfurization and denitration, wherein a burner main body is directly installed in a flue, the burner main body is only provided with a gas pipeline and is not provided with a combustion air pipe, the flue is provided with a passage hole, and the gas pipeline enters from the passage hole and is connected with the burner main body. The combustor main body comprises a gas main pipe, a gas spray pipe, a flame stabilizing disc, an air guide plate, an ignition device and a fire detection system, wherein the gas main pipe, the gas spray pipe, the flame stabilizing disc and the air guide plate are installed on the installation flange in a welding mode, and the ignition device and the fire detection system are installed on the installation flange through threaded connection. The mounting flange is fixed on the mounting bracket through screws. The mounting bracket is welded on the flue.
Fig. 3 is a front view of the burner body, and the air deflector is mainly used for guiding and shunting flue gas, and a relative negative pressure area is formed between the front panel of the flame stabilizing disc and a combustion area under the cooperation of the flame stabilizing disc, and the fuel gas and the flue gas are mixed and then are combusted in the area.
Fig. 4 shows a plan arrangement of the gas main, the ignition device, the fire detection system and the fire observation hole on the fixed end plate. The fire observation hole is used for observing the combustion working condition of the internal flame.
The working principle of the utility model is described as follows: the gas gets into gas and is responsible for 1 and spout from 3 roots of flame stabilizing disc through gas spray tube 2, the flue gas in the flue 9 is shunted at air guide plate 4 effect, a part of flue gas enters into flame stabilizing disc 3 regional and is mixed with the gas, most flue gas flows through 4 outsides of air guide plate, form relative negative pressure zone at flame stabilizing disc 3 and combustion area 12 like this, combustible gas mist stops in this region, under ignition 5 ignition, ignite combustible gas and form flame, the combustion is accomplished at combustion area 12, become high temperature flue gas and mix with the flue gas and carry out the heat exchange, form heating back flue gas 13, reach the flue gas intensification purpose, fire detection system 6 monitors flame and gives control system with signal transmission. The worker can visually observe the internal combustion through the fire hole 10.
The utility model saves a combustion-supporting air pipe, a power-consuming blower, a bulky hot blast stove or a combustion furnace body, has simple structure and convenient maintenance, burns in a flue through large-area mixing of fuel gas and flue gas, has wide flame area and uniform flue gas temperature, and effectively controls the phenomenon of overhigh local temperature, so the emission of the generated NOX is greatly reduced to meet the emission standard requirement.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (5)
1. The utility model provides a flue gas intensification combustor for flue gas desulfurization denitration which characterized in that: the burner is characterized by comprising a burner body, wherein the burner body is directly installed in a flue, the burner body is only provided with a gas pipeline without a combustion air pipe, the flue is provided with a passage hole, and the gas pipeline enters from the passage hole and is connected with the burner body.
2. The flue gas temperature-rising burner for flue gas desulfurization and denitration according to claim 1, characterized in that: the burner main body is installed in the flue through an installation flange and an installation support.
3. The flue gas temperature-rising burner for flue gas desulfurization and denitration according to claim 2, characterized in that: the combustor main body comprises a gas main pipe, a gas spray pipe, a flame stabilizing disc, an air guide plate, an ignition device and a fire detection system, wherein the gas main pipe, the gas spray pipe, the flame stabilizing disc, the air guide plate, the ignition device and the fire detection system are all fixed on a mounting flange.
4. The flue gas temperature-rising burner for flue gas desulfurization and denitration according to claim 3, characterized in that: the gas main pipe, the gas spray pipe, the flame stabilizing disc and the air guide plate are arranged on the mounting flange in a welding mode, and the ignition device and the fire detection system are arranged on the mounting flange in a threaded connection mode.
5. The flue gas temperature-rising burner for flue gas desulfurization and denitration according to claim 1, characterized in that: the power supply of the flue gas heating burner is single-phase electricity, and the electricity consumption is less than 1 kw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122265453.5U CN216159082U (en) | 2021-09-18 | 2021-09-18 | Flue gas heating burner for flue gas desulfurization and denitrification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122265453.5U CN216159082U (en) | 2021-09-18 | 2021-09-18 | Flue gas heating burner for flue gas desulfurization and denitrification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216159082U true CN216159082U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122265453.5U Active CN216159082U (en) | 2021-09-18 | 2021-09-18 | Flue gas heating burner for flue gas desulfurization and denitrification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216159082U (en) |
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2021
- 2021-09-18 CN CN202122265453.5U patent/CN216159082U/en active Active
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