CN210688213U - Flat-mouth parallel jet air single heat storage natural gas burner - Google Patents
Flat-mouth parallel jet air single heat storage natural gas burner Download PDFInfo
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- CN210688213U CN210688213U CN201921358774.6U CN201921358774U CN210688213U CN 210688213 U CN210688213 U CN 210688213U CN 201921358774 U CN201921358774 U CN 201921358774U CN 210688213 U CN210688213 U CN 210688213U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to a flat mouthful of parallel efflux air single heat accumulation natural gas nozzle, the nozzle sets up in heating furnace wall, including the nozzle body, air pipeline is connected to nozzle body one end, and the other end is equipped with the square air spout of symmetry, and nozzle body inner chamber is equipped with the fender brick, and one side of keeping off the brick is the regenerator, and the opposite side is the premixing chamber, is equipped with the natural gas collector in the below of nozzle body, and this internal many parallel natural gas branch pipes of connection on the natural gas collector that are equipped with of nozzle of air spout below, wherein the end connection air duct of a plurality of natural gas branch pipes accesss to premixing chamber, and all the other natural gas branch pipes tilt up accesss. The utility model discloses a natural gas pipe and the integration of nozzle body are integrative, make the transformation that short furnace heating furnace used the heat accumulation formula nozzle realize, and flat air nozzle forms parallel efflux with the cooperation of many gas pipe branch pipes, and flame length is suitable, the air preheats and mixes in advance with the gas, and the burning is complete.
Description
Technical Field
The utility model relates to a metallurgical heating furnace, in particular to flat mouthful of parallel efflux air list heat accumulation natural gas nozzle.
Background
The heating furnace is widely applied to various large steel mills, and the burner is a core component of the heating furnace. Various burners are commonly used, such as low-pressure vortex burners, flat flame burners, self-preheating burners, regenerative burners and the like. From the energy-saving perspective, heat accumulation is generally adopted, and is divided into single heat accumulation and double heat accumulation, wherein the double heat accumulation means that air and fuel are preheated through a heat accumulator, the heat efficiency is improved, and the single heat accumulation means that only air is preheated. The regenerative burner fuel is blast furnace gas or converter gas. The structural design of the burner mainly depends on the factors such as the type of fuel, public and auxiliary parameters, the combustion performance requirement of thermal equipment and the like, and one of the necessary conditions for sufficient combustion is that the fuel and air need to be effectively and completely mixed uniformly. Some steel mills are conventional heating furnaces, adopt mixed gas, and normal burners, and the tapping quality is not ideal all the time, mainly because NOx exceeds standard and billet oxidation is serious, which has great relation with the structure of burners. Many manufacturers want to use natural gas according to the requirements of energy conservation and environmental protection, the heat value of the natural gas is very high, and if heat storage is adopted, many fuels can be saved.
The conventional heating furnace generally adopts a three-section type, a hearth is shorter, and if natural gas fuel is reformed, the common regenerative burner with a natural gas pipeline arranged in a furnace wall can not meet the requirements. Therefore, it is necessary to develop a burner suitable for a short furnace and a proper flame length.
Disclosure of Invention
The utility model aims to solve the technical problem that a flat mouthful of parallel efflux air list heat accumulation natural gas nozzle is provided, solve the problem that current short furnace heating furnace reforms transform natural gas fuel.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a flat mouthful of parallel efflux air list heat accumulation natural gas nozzle, the nozzle sets up in heating furnace wall, including the nozzle body, air conduit is connected to nozzle body one end, the other end is equipped with the square air spout of symmetry, nozzle body inner chamber is equipped with and keeps off the brick, one side that keeps off the brick is the regenerator, the opposite side is the premixing chamber, be equipped with the natural gas collector in the below of nozzle body, this internal many parallel natural gas branch pipes of connection on the natural gas collector that is equipped with of nozzle of air spout below, wherein the end connection air duct of a plurality of natural gas branch pipes accesss to premixing chamber, all the other natural gas branch pipes tilt up accesss.
The burner body comprises a shell, a fiber layer and a lining body from outside to inside, wherein a bracket connected with a furnace wall steel plate and an anchoring hook prefabricated in the furnace wall of the heating furnace are arranged outside the shell.
And a grid plate is arranged between the air pipeline and the burner body.
The included angle between the natural gas branch pipe and the horizontal direction is 3.8-4.6 degrees.
The included angle between the air guide pipe leading to the premixing chamber and the vertical direction is 15-18 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a fuel natural gas pipe is integrative with the nozzle body is integrated, makes the transformation that short furnace heating furnace used the heat accumulation formula nozzle realize, and flat air nozzle forms parallel efflux with the cooperation of many gas pipe branch pipes, and flame length is suitable, the air preheats and mixes in advance with the gas, and the burning is complete. The volume is small.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the structure of the present invention.
Fig. 3 is a right side view of the structure of the present invention.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 5 is a schematic view of a grid plate.
In the figure: the burner comprises a burner 1, a heating furnace wall 2, a burner body 3, an air pipeline 4, an air nozzle 5, a blocking brick 6, a heat storage chamber 7, a premixing chamber 8, a shell 9, a fiber layer 10, a lining body 11, an anchoring hook 12, a natural gas collecting pipe 13, a natural gas branch pipe 14, a gas guide pipe 15, a furnace wall steel plate 16, a support 17 and a grid plate 18.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings:
referring to fig. 1-5, the burner 1 is arranged in a furnace wall 2 of a heating furnace and comprises a burner body 3, the burner body 3 is of a cavity structure, the burner body 3 comprises a shell 9, a fiber layer 10 and a lining body 11 from outside to inside, and the lining body 11 is formed by pouring high-strength light-weight castable and corundum castable respectively. The outer shell 9 is externally provided with a bracket 17 connected with a furnace wall steel plate 16 and an anchoring hook 12 prefabricated in the furnace wall 2 of the heating furnace.
One end of the burner body 3 is connected with an air pipeline 4, and a grid plate 18 is arranged between the air pipeline 4 and the burner body 3. The bottom of the cavity at the other end of the burner body 3 is provided with symmetrical square air nozzles 5, the inner cavity of the burner body 3 is provided with a blocking brick 6, one side of the blocking brick 6 is a regenerator 7, and the other side is a premixing chamber 8.
A natural gas collecting pipe 13 is arranged below the burner body 1, a plurality of parallel natural gas branch pipes 14 connected to the natural gas collecting pipe 13 are arranged in the burner body 3 below the air nozzle 5, the natural gas branch pipes 14 are high-temperature-resistant 1Cr18Ni9Ti, the end parts of the natural gas branch pipes 14 are connected with gas guide pipes 15 to lead to the premixing chamber 8, and the rest natural gas branch pipes 14 are upwards inclined to lead to the outside of the burner body 3. The included angle of the natural gas branch pipe 14 and the horizontal direction is 3.8-4.6 degrees, and the included angle of the gas guide pipe 15 and the vertical direction is 15-18 degrees.
Examples
The utility model provides a flat mouthful of parallel efflux air list heat accumulation natural gas nozzle, nozzle 1 sets up in heating furnace brickwork 2, including nozzle body 3, and nozzle body 3 is the cavity structure, and 3 one ends of nozzle body connect air conduit 4, are equipped with grid plate 18 between air conduit 4 and the nozzle body 3. The bottom of the cavity at the other end of the burner body 3 is provided with symmetrical square air nozzles 5, the inner cavity of the burner body 3 is provided with a blocking brick 6, one side of the blocking brick 6 is a regenerator 7, and the other side is a premixing chamber 8. The grid plate 18 prevents the thermal mass from moving.
The burner body 3 comprises a shell 9, a fiber layer 10 and a lining body 11 from outside to inside, wherein the lining body 11 is formed by pouring high-strength light castable and corundum castable from a regenerator 7 to a premixing chamber 8 respectively. The outer shell 9 is externally provided with a bracket 17 connected with a furnace wall steel plate 16 and an anchoring hook 12 prefabricated in the furnace wall 2 of the heating furnace.
A natural gas collecting pipe 13 is arranged below the burner body 1, a plurality of parallel natural gas branch pipes 14 connected to the natural gas collecting pipe 13 are arranged in the burner body 3 below the air nozzle 5, the natural gas branch pipes 14 are high-temperature-resistant 1Cr18Ni9Ti, the end parts of the natural gas branch pipes 14 are connected with gas guide pipes 15 to lead to the premixing chamber 8, and the rest natural gas branch pipes 14 are upwards inclined to lead to the outside of the burner body 3. The included angle of the natural gas branch pipes 14 and the horizontal direction is 4 degrees, and the included angle of the gas guide pipes 15 and the vertical direction is 18 degrees.
The natural gas pipe and the burner body are integrated into a whole, so that the low hearth heating furnace can be realized by using the transformation of a heat accumulating type burner, the flat air nozzle and the branch pipes of the multiple gas pipes are matched to form parallel jet flow, the flame length is proper, the air accumulates heat and is premixed with the gas, and the combustion is complete.
The above is only the basic principle of the present invention, not to the present invention makes any limitation, all the bases of the present invention are the same changes and modifications to the above, all within the scope of the protection scheme of the present patent technology.
Claims (5)
1. The utility model provides a flat mouthful of parallel efflux air list heat accumulation natural gas nozzle, the nozzle sets up in heating furnace wall, including the nozzle body, its characterized in that, nozzle body one end connects air conduit, the other end is equipped with the square air spout of symmetry, nozzle body inner chamber is equipped with and keeps off the brick, one side that keeps off the brick is the regenerator, the opposite side is for mixing the room in advance, be equipped with the natural gas collector in the below of nozzle body, this internal many parallel natural gas branch pipes of connection on the natural gas collector that are equipped with of nozzle of air spout below, wherein the end connection air duct of a plurality of natural gas branch pipes accesss to mixing the room in advance, all the other natural gas branch pipes.
2. The flat-mouth parallel jet air single heat storage natural gas burner as claimed in claim 1, wherein the burner body comprises a shell, a fiber layer and a lining body from outside to inside, a bracket connected with a furnace wall steel plate and an anchoring hook prefabricated in a furnace wall of the heating furnace are arranged outside the shell.
3. The flat-mouth parallel jet air single heat storage natural gas burner as claimed in claim 1, wherein a grid plate is arranged between the air pipeline and the burner body.
4. The flat-mouth parallel jet air single heat storage natural gas burner as claimed in claim 1, wherein the included angle between the natural gas branch pipe and the horizontal direction is 3.8-4.6 °.
5. The flat-mouth parallel jet air single heat storage natural gas burner as claimed in claim 1, wherein the included angle between the air duct leading to the premixing chamber and the vertical direction is 15-18 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358774.6U CN210688213U (en) | 2019-08-20 | 2019-08-20 | Flat-mouth parallel jet air single heat storage natural gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358774.6U CN210688213U (en) | 2019-08-20 | 2019-08-20 | Flat-mouth parallel jet air single heat storage natural gas burner |
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| Publication Number | Publication Date |
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| CN210688213U true CN210688213U (en) | 2020-06-05 |
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| CN201921358774.6U Active CN210688213U (en) | 2019-08-20 | 2019-08-20 | Flat-mouth parallel jet air single heat storage natural gas burner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494708A (en) * | 2021-07-14 | 2021-10-12 | 长沙理工大学 | Modular gas burner and operation method thereof |
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2019
- 2019-08-20 CN CN201921358774.6U patent/CN210688213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494708A (en) * | 2021-07-14 | 2021-10-12 | 长沙理工大学 | Modular gas burner and operation method thereof |
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