CN213395306U - High-speed low-nitrogen burner for gas heat treatment furnace - Google Patents

High-speed low-nitrogen burner for gas heat treatment furnace Download PDF

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Publication number
CN213395306U
CN213395306U CN202021367471.3U CN202021367471U CN213395306U CN 213395306 U CN213395306 U CN 213395306U CN 202021367471 U CN202021367471 U CN 202021367471U CN 213395306 U CN213395306 U CN 213395306U
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Prior art keywords
gas
temperature ceramic
speed low
heat treatment
treatment furnace
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CN202021367471.3U
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Chinese (zh)
Inventor
代光明
唐国炎
石洪建
金军民
唐侨炜
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Jiangyin Hongjian Furnace Manufacturing Co ltd
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Jiangyin Hongjian Furnace Manufacturing Co ltd
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Abstract

The utility model discloses a high-speed low-nitrogen burner for a gas heat treatment furnace, wherein the middle part of the high-speed low-nitrogen burner is provided with a high-temperature ceramic regenerator, the right upper end of the high-temperature ceramic regenerator is provided with a burner cap, the right lower end of the high-temperature ceramic regenerator is provided with an air distribution port, the high-temperature ceramic regenerator is connected with a combustion chamber through the air distribution port, and the leftmost end of the combustion chamber is provided with a rear sealing cover; this a high-speed low nitrogen combustor for gas heat treatment furnace, in order to reduce this combustor and generate NOX's concentration, propose to adopt gas two-stage air feed, spout the flue gas backward flow district of nozzle root with a large amount of gas, utilize the high-temperature flue gas disturbance that arouses when drawing at a high speed, dilute the oxygen concentration in the stove air, a small amount of secondary gas is spouted into the combustion chamber and is mixed with the air, makes flame temperature be less than 1400 ℃, NOX concentration will be greatly reduced like this, reaches energy-concerving and environment-protective requirement.

Description

High-speed low-nitrogen burner for gas heat treatment furnace
Technical Field
The utility model relates to the field of burners, in particular to a high-speed low-nitrogen burner for a gas heat treatment furnace.
Background
With the continuous improvement of the national environmental protection requirement, the discharge amount of nitrogen oxides generated in the combustion process of a common heat accumulating type combustor is far beyond the national standard;
according to the principle of nitrogen oxide generation, a common heat accumulating type burner is formed by completely mixing and burning gas and combustion air, and the temperature of flame after mixing exceeds 1500 ℃, so that the generated nitrogen oxide is multiplied, and therefore, a high-speed low-nitrogen burner for a gas heat treatment furnace is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a high-speed low nitrogen combustor for gas heat treatment furnace, the middle part of this high-speed low nitrogen combustor has high-temperature ceramic regenerator, combustor cap is installed to high-temperature ceramic regenerator directly the upper end, and has seted up the air distribution port directly under the high-temperature ceramic regenerator, and this high-temperature ceramic regenerator is connected with the combustion chamber through the air distribution port, the rear sealing cap is installed to the leftmost end of combustion chamber, and installs ignition in one side of rear sealing cap, and the secondary gas intake pipe is installed to one side of this ignition, the lower extreme of combustion chamber is installed once the gas intake pipe, the one end of once the gas intake pipe is connected on once the gas export, the export has been seted up in once the gas export.
Preferably, the upper end part of the high-temperature ceramic regenerator is of a cone structure, the middle end part of the high-temperature ceramic regenerator is of a cylinder structure, and the lower end part of the high-temperature ceramic regenerator is of a cone structure.
Preferably, the combustor cap is movably connected with the high-temperature ceramic regenerator through a hinge.
Preferably, the bottom of the burner has mounting feet.
Preferably, the outlet is circular in cross-section.
Preferably, the rear cover is connected to the combustion chamber.
Compared with the prior art, the utility model discloses possess following beneficial effect: this a high-speed low nitrogen combustor for gas heat treatment furnace, in order to reduce this combustor and generate NOX's concentration, propose to adopt gas two-stage air feed, spout the flue gas backward flow district of nozzle root with a large amount of gas, utilize the high-temperature flue gas disturbance that arouses when drawing at a high speed, dilute the oxygen concentration in the stove air, a small amount of secondary gas is spouted into the combustion chamber and is mixed with the air, makes flame temperature be less than 1400 ℃, NOX concentration will be greatly reduced like this, reaches energy-concerving and environment-protective requirement.
Drawings
FIG. 1 is a schematic view of the overall structure of a high-speed low-nitrogen burner for a gas heat treatment furnace according to the present invention;
FIG. 2 is a side view of the high-speed low-nitrogen burner of the present invention;
FIG. 3 is a schematic view of the connection between the primary gas outlet and the primary gas inlet pipe of the high-speed low-nitrogen burner of the present invention;
in the figure: 1. a burner cap; 2. a high temperature ceramic regenerator; 3. an air distribution port; 4. sealing the cover; 5. an ignition device; 6. a secondary gas inlet pipe; 7. a combustion chamber; 8. a primary gas outlet; 9. a primary gas inlet pipe; 10. and (7) an outlet.
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.
Referring to fig. 1-3, a high-speed low-nitrogen burner for a gas heat treatment furnace, the high-speed low-nitrogen burner has a high-temperature ceramic regenerator 2 in the middle, a burner cap 1 is installed at the right upper end of the high-temperature ceramic regenerator 2, an air distribution port 3 is opened at the right lower end of the high-temperature ceramic regenerator 2, the high-temperature ceramic regenerator 2 is connected to a combustion chamber 7 through the air distribution port 3, a rear cover 4 is installed at the leftmost end of the combustion chamber 7, an ignition device 5 is installed at one side of the rear cover 4, a secondary gas inlet pipe 6 is installed at one side of the ignition device 5, a primary gas inlet pipe 9 is installed at the lower end of the combustion chamber 7, one end of the primary gas inlet pipe 9 is connected to a primary gas outlet 8, and an outlet 10 is opened at the primary gas outlet 8.
The upper end part of the high-temperature ceramic regenerator 2 is of a cone structure, the middle end part is of a cylinder structure, and the lower end part is of a cone structure.
The combustor cap 1 is movably connected with the high-temperature ceramic regenerator 2 through a hinge.
The bottom of the burner has mounting feet.
The cross-section of the outlet 10 is circular.
The rear cover 4 is connected to the combustion chamber 7.
When the high-speed low-nitrogen burner for the gas heat treatment furnace works, normal-temperature combustion-supporting air enters from a burner cap 1 of the burner 1, passes through a heat storage layer of a high-temperature ceramic heat storage chamber 2 of the burner to preheat cold air, passes through an air distribution port 3 of a combustion chamber to enter a combustion chamber 7, a small amount of secondary gas enters the combustion chamber through a secondary gas inlet pipe 6 on a rear sealing cover 4 of the combustion chamber, is ignited by an ignition device 5 to form oxygen-enriched combustion in the combustion chamber, and is sprayed out at a high speed through an outlet 10, and primary gas is sprayed into a primary gas outlet 8 at the root part of the burner through a primary gas inlet pipe 9;
meanwhile, the burners must be used in pairs, a large amount of primary fuel gas can be sprayed into a flue gas backflow area at the root of the burner, the oxygen concentration in the air of the burner is diluted by utilizing the flue gas disturbance caused by high-temperature high-speed injection, and a small amount of secondary fuel gas is sprayed into a combustion chamber to be mixed with the air, so that the flame temperature is lower than 1400 ℃, the NOX concentration is greatly reduced, and the requirements of energy conservation and environmental protection are met.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A high-speed low-nitrogen burner for a gas heat treatment furnace, the middle part of the high-speed low-nitrogen burner having a high-temperature ceramic regenerator (2), characterized in that: combustor cap (1) is installed to the positive upper end of high temperature ceramic regenerator (2), and has seted up air distribution port (3) under high temperature ceramic regenerator (2), and this high temperature ceramic regenerator (2) are connected with combustion chamber (7) through air distribution port (3), rear cover (4) are installed to the leftmost end of combustion chamber (7), and one side of rear cover (4) installs ignition (5), and secondary gas intake pipe (6) are installed to one side of this ignition (5), primary gas intake pipe (9) are installed to the lower extreme of combustion chamber (7), the one end of primary gas intake pipe (9) is connected on primary gas export (8), export (10) have been seted up on primary gas export (8).
2. The high-speed low-nitrogen burner for a gas fired heat treatment furnace as claimed in claim 1, wherein: the upper end part of the high-temperature ceramic regenerator (2) is of a cone structure, the middle end part of the high-temperature ceramic regenerator is of a cylinder structure, and the lower end part of the high-temperature ceramic regenerator is of a cone structure.
3. The high-speed low-nitrogen burner for a gas fired heat treatment furnace as claimed in claim 1, wherein: the burner cap (1) is movably connected with the high-temperature ceramic heat storage chamber (2) through a hinge.
4. The high-speed low-nitrogen burner for a gas fired heat treatment furnace as claimed in claim 1, wherein: the bottom of the burner has mounting feet.
5. The high-speed low-nitrogen burner for a gas fired heat treatment furnace as claimed in claim 1, wherein: the cross-section of the outlet (10) is circular.
6. The high-speed low-nitrogen burner for a gas fired heat treatment furnace as claimed in claim 1, wherein: the rear sealing cover (4) is connected with the combustion chamber (7).
CN202021367471.3U 2020-07-13 2020-07-13 High-speed low-nitrogen burner for gas heat treatment furnace Active CN213395306U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021367471.3U CN213395306U (en) 2020-07-13 2020-07-13 High-speed low-nitrogen burner for gas heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021367471.3U CN213395306U (en) 2020-07-13 2020-07-13 High-speed low-nitrogen burner for gas heat treatment furnace

Publications (1)

Publication Number Publication Date
CN213395306U true CN213395306U (en) 2021-06-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021367471.3U Active CN213395306U (en) 2020-07-13 2020-07-13 High-speed low-nitrogen burner for gas heat treatment furnace

Country Status (1)

Country Link
CN (1) CN213395306U (en)

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