CN210511683U - Oxygen-enriched burner suitable for multiple heat value coal gas - Google Patents
Oxygen-enriched burner suitable for multiple heat value coal gas Download PDFInfo
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- CN210511683U CN210511683U CN201920824841.2U CN201920824841U CN210511683U CN 210511683 U CN210511683 U CN 210511683U CN 201920824841 U CN201920824841 U CN 201920824841U CN 210511683 U CN210511683 U CN 210511683U
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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
Abstract
The utility model belongs to the field of burners, and relates to an oxygen-enriched burner suitable for gas with various heat values, which comprises a gas channel, a primary air channel, a burner block and a gas regulator; the primary air channel is sleeved outside the gas channel; a gas outlet plate is arranged on the combustion chamber; the primary air channel and the coal gas channel are close to and connected with the coal gas outlet plate and communicated with the combustion chamber; the coal gas outlet plate is provided with a through hole; the gas regulator is arranged along the gas channel and matched with the through hole, and is used for plugging or releasing the through hole and regulating the amount of gas entering the combustion chamber; the burner is suitable for various gas burners with different heat values, can be automatically adjusted to ensure the flame performance when the heat value of the gas changes, and simultaneously combines the oxygen-enriched combustion technology to ensure the combustion temperature of low-heat-value gas and greatly increase the flexibility of gas supply of the heating furnace.
Description
Technical Field
The utility model belongs to the combustor field relates to an oxygen boosting nozzle suitable for multiple calorific value coal gas.
Background
The burner is one of key devices of a metallurgical heating furnace, the metallurgical heating furnace is one of main energy consumption processes in a steel rolling process, and coal gas byproducts generated in various production processes of a steel mill, including blast furnace gas, converter gas, coke oven gas, and purchased natural gas, liquefied petroleum gas and the like, are consumed. The metallurgical heating furnace at present requires stable gas heat value to ensure that the flame characteristic of the burner meets the heating requirement, when the fluctuation of the gas heat value is large, the flame shape is poor after the burner deviates from design parameters, the gas pressure in front of the burner is difficult to meet the requirement, or the gas combustion temperature cannot meet the heating requirement, the problem is solved only by replacing the burner, the great influence is brought to the production of enterprises, and the influence of the secondary fluctuation of the gas heat value cannot be overcome. The steel mill gas has various types, the gas generation amount of different heat values can be changed along with the change of production, and the heat value of the gas supplied to the heating furnace can be changed, so that the burner of the heating furnace is required to meet the change of the heat value of the gas in a large range, and the burner is suitable for the combustion of the gas with various heat values on the premise of not replacing the burner and not influencing the production.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a nozzle suitable for multiple calorific value coal gas.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an oxygen-enriched burner suitable for gas with various heat values comprises a gas channel, a primary air channel, a burner block and a gas regulator; the primary air channel is sleeved outside the gas channel; a combustion chamber is arranged in the burner block, and a gas outlet plate is arranged at one end of the burner block; the primary air channel and one end of the coal gas channel close to the coal gas outlet plate are both connected with the coal gas outlet plate and communicated to the combustion chamber; the coal gas outlet plate is provided with a through hole; the gas regulator is arranged along the gas channel and matched with the through hole, and is movably arranged along the extending direction of the gas channel to plug or release the through hole so as to adjust the amount of gas entering the combustion chamber from the gas channel.
Optionally, the gas regulator comprises a cylinder, a spring, a push rod and a blocking piece, the shape of the blocking piece is matched with that of the through hole, the end part of the blocking piece is connected with the push rod, the push rod is connected with the cylinder through the spring, the cylinder pushes the spring and compresses the spring, and the blocking piece moves towards the direction close to the gas outlet plate to block the through hole; the cylinder deflates, the spring resets, the blocking piece moves towards the direction far away from the coal gas outlet plate, and the through hole is released.
Optionally, the through holes are provided with a plurality of through holes, the shapes and the sizes of the different through holes are the same or different, the number of the gas regulators is matched with the through holes, and the baffle plate on the gas regulator matched with any through hole is matched with the size of the through hole.
Optionally, the gas burner further comprises a secondary air channel sleeved outside the primary air channel, and one end of the secondary air channel, which is close to the gas outlet plate, is connected with the gas outlet plate and communicated to the combustion chamber.
Optionally, a through oxygen channel is formed in the burner block, and the oxygen channel penetrates through the secondary air channel.
Optionally, a high-temperature-resistant sealing gasket is arranged on one side, away from the push rod, of the blocking piece.
Optionally, a groove matched with the shape of the baffle is formed in the edge of the through hole.
Optionally, each gas regulator is independently controlled.
Optionally, the gas burner further comprises an ignition device arranged along the axis of the gas channel.
Optionally, the ignition device is a high energy spark plug or an ever-burning flame.
Optionally, a central gas channel is further arranged in the gas channel, and a central gas outlet communicated with the central gas channel is further arranged on the gas outlet plate.
The beneficial effects of the utility model reside in that:
1. the utility model is suitable for the combustion of coal gas with different heat values, different coal gas corresponds to spouts with different quantity or size, and the optimal spraying speed of the coal gas with different heat values is realized; when the gas calorific value of the burner nozzle changes, the through holes can be automatically switched, the burner nozzle does not need to be replaced, the flame performance can be ensured, the production is not influenced, and the optimal configuration of the gas is realized to the maximum extent.
2. The utility model discloses establish the oxygen passageway in, can adjust different oxygen concentration according to coal gas calorific value and production technology requirement, realize energy saving and emission reduction under the prerequisite that satisfies the heat requirement.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the structure of the burner of the present invention;
FIG. 2 is a schematic view showing the internal structure of a gas channel according to a preferred embodiment;
fig. 3 is a schematic structural diagram of the gas regulator.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-3, the reference numbers in the figures refer to the following elements: the gas burner comprises a gas channel 1, a gas outlet plate 11, a central gas outlet 12, a central gas channel 13, a primary air channel 2, an oxygen channel 3, a secondary air channel 4, a burner block 6, a combustion chamber 61, an ignition device 7, a gas regulator 8, a cylinder 81, a spring 82, a push rod 83, a blocking piece 84 and a high-temperature-resistant heat insulation pad 85.
The utility model relates to an oxygen enrichment burner nozzle applicable to gas with various heat values, which comprises a gas channel 1, a primary air channel 2, a burner block 6 and a gas regulator 8; the primary air channel 2 is sleeved outside the gas channel 1; a combustion chamber 61 is arranged in the burner block 6, and a coal gas outlet plate 11 is arranged at one end of the burner block; one ends of the primary air channel 2 and the gas channel 1, which are close to the gas outlet plate 11, are connected with the gas outlet plate 11 and communicated with the combustion chamber 61; the coal gas outlet plate 11 is provided with a through hole; the gas regulator 8 is arranged along the gas channel 1 and matched with the through hole, and is movably arranged along the extending direction of the gas channel 1 to block or release the through hole so as to adjust the gas quantity entering the combustion chamber 61 from the gas channel 1.
Optionally, the gas regulator 8 includes a cylinder 81, a spring 82, a push rod 83 and a blocking piece 84, the blocking piece 84 is matched in shape with the through hole, the end of the blocking piece 84 is connected with the push rod 83, the push rod 83 is connected with the cylinder 81 through the spring 82, the cylinder 81 pushes the spring 82 and compresses the spring 82, and the blocking piece 84 moves towards the direction close to the gas outlet plate 11 to block the through hole; the air cylinder 81 is deflated, the spring 82 is reset, the blocking piece 84 moves towards the direction far away from the coal gas outlet plate 11, and the through hole is released; the through holes are provided with a plurality of through holes, the shapes and the sizes of the different through holes are the same or different, the number of the gas regulators 8 is matched with the through holes, and the baffle plate on the gas regulator 8 matched with any through hole is matched with the size of the through hole; the gas burner is characterized by further comprising a secondary air channel 4 sleeved outside the primary air channel 2, wherein one end, close to the gas outlet plate 11, of the secondary air channel 4 is connected with the gas outlet plate 11 and communicated to the combustion chamber 61.
Optionally, a through oxygen channel 3 is formed on the burner block 6, and the oxygen channel 3 passes through the secondary air channel 4; a high-temperature-resistant sealing gasket is arranged on one side, away from the push rod 83, of the blocking piece 84; the edge of the through hole is provided with a groove matched with the baffle 84 in shape; each gas regulator 8 is independently controlled; the ignition device 7 is arranged along the axis of the gas channel 1; the ignition device 7 is a high-energy spark plug or an open flame and is used for igniting the burner or ensuring the flame stability of the burner during low-temperature operation; a central gas channel 13 is also arranged in the gas channel 1, and a central gas outlet 12 communicated with the central gas channel 13 is also arranged on the gas outlet plate 11.
Specifically, the present embodiment needs to accommodate five kinds of heating value fuels, and four sets of through holes are provided. For the burner, in order to ensure the power of the burner, when the heat value of the gas is reduced, the required gas quantity should be increased, and the corresponding through hole communication area should also be increased. Therefore, for the present embodiment, only the central gas outlet 12 is used for lpg, 1 through hole is matched with the central gas outlet 12 for natural gas, 2 through holes are matched with the central gas outlet 12 for coke oven gas, 3 through holes are matched with the central gas outlet 12 for mixed gas, all the through holes are matched with the central gas outlet 12 for blast furnace gas, and the gas outlet plate 11 is provided with a groove matched with the blocking piece 84 at the position of each through hole. In the embodiment, four gas regulators 8 are arranged, and the gas regulators 8 correspond to the through holes in the axial and radial positions one by one.
The oxygen quantity supplied to the burner by the oxygen channel 3 in the scheme is determined by the heat value of coal gas and the heating process, the oxygen is adjustable in the using process, and the air quantity in the primary air channel 2 and the secondary air channel 4 is also adjustable. The whole device can realize pure oxygen combustion, oxygen-enriched combustion or air combustion-supporting combustion. When the burner is in operation, each gas regulator 8 is automatically and independently controlled. When the heat value of the coal gas is increased, the air cylinder 81 enters air, the push rod 83 is pushed to advance, the through hole at the corresponding position is blocked by the blocking piece 84, and the coal gas enters the combustion chamber 61 through the central passage 13 at each stage and the rest through holes; when the heat value of the gas is reduced, the cylinder 81 is deflated, the spring 82 is reset to enable the push rod 83 to retreat, the through hole at the corresponding position is opened, and the gas enters the combustion chamber 61 through the central gas channel 13 and the opened through hole; the amount of advance or retreat of the push rod 83 is determined by the calorific value of the gas, and the purpose thereof is to ensure that the areas of the central gas passage 13 and the opened through-holes should be the optimum values for the gas flow rate of the current calorific value.
The utility model discloses an oxygen boosting nozzle suitable for multiple calorific value coal gas, applicable in the coal gas of multiple calorific value, the coal gas of different calorific values corresponds different through-holes, when the coal gas calorific value changes, but the size of automatic adjustment coal gas through-hole guarantees flame performance, does not influence production, sets up oxygen passageway 3 in the nozzle simultaneously, can realize the oxygen boosting burning of different oxygen concentration, furthest satisfies energy saving and emission reduction and optimizes the requirement of production.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. An oxygen enrichment burner suitable for coal gas with various heat values is characterized in that: comprises a gas channel, a primary air channel, a burner block and a gas regulator; the primary air channel is sleeved outside the gas channel; a combustion chamber is arranged in the burner block, and a gas outlet plate is arranged at one end of the burner block; the primary air channel and one end of the coal gas channel close to the coal gas outlet plate are both connected with the coal gas outlet plate and communicated to the combustion chamber; the coal gas outlet plate is provided with a through hole; the gas regulator is arranged along the gas channel and matched with the through hole, and is movably arranged along the extending direction of the gas channel to plug or release the through hole so as to adjust the amount of gas entering the combustion chamber from the gas channel.
2. An oxygen-enriched burner suitable for gas with various heat values as in claim 1, wherein: the gas regulator comprises a cylinder, a spring, a push rod and a blocking piece, the shape of the blocking piece is matched with that of the through hole, the end part of the blocking piece is connected with the push rod, the push rod is connected with the cylinder through the spring, the cylinder pushes the spring and compresses the spring, and the blocking piece moves towards the direction close to the gas outlet plate to block the through hole; the cylinder deflates, the spring resets, the blocking piece moves towards the direction far away from the coal gas outlet plate, and the through hole is released.
3. An oxygen-enriched burner suitable for gas with various heat values as in claim 1, wherein: the through holes are provided with a plurality of through holes, the shapes and the sizes of the different through holes are the same or different, the number of the gas regulators is matched with the through holes, and the baffle plate on the gas regulator matched with any through hole is matched with the size of the through hole.
4. An oxygen-enriched burner suitable for gas with various heat values as in claim 1, wherein: the secondary air channel is sleeved on the outer side of the primary air channel, and one end, close to the coal gas outlet plate, of the secondary air channel is connected with the coal gas outlet plate and communicated to the combustion chamber.
5. An oxygen-enriched burner suitable for gas with multiple heat values as in claim 4, wherein: and the burner block is provided with a through oxygen channel, and the oxygen channel penetrates through the secondary air channel.
6. An oxygen-enriched burner suitable for gas with multiple heat values as in claim 2, wherein: and a high-temperature-resistant sealing gasket is arranged on one side, away from the push rod, of the blocking piece.
7. An oxygen-enriched burner suitable for gas with multiple heat values as in claim 2, wherein: and the edge of the through hole is provided with a groove matched with the shape of the baffle.
8. An oxygen-enriched burner suitable for gas with various heat values as in claim 1, wherein: each gas regulator is independently controlled.
9. An oxygen-enriched burner suitable for gas with various heat values as in claim 1, wherein: the gas burner also comprises an ignition device arranged along the axis of the gas channel.
10. An oxygen-enriched burner for gas with multiple heat values as in claim 9, wherein: the ignition device is a high-energy spark plug or an ever-burning fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824841.2U CN210511683U (en) | 2019-06-03 | 2019-06-03 | Oxygen-enriched burner suitable for multiple heat value coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824841.2U CN210511683U (en) | 2019-06-03 | 2019-06-03 | Oxygen-enriched burner suitable for multiple heat value coal gas |
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| Publication Number | Publication Date |
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| CN210511683U true CN210511683U (en) | 2020-05-12 |
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| CN201920824841.2U Active CN210511683U (en) | 2019-06-03 | 2019-06-03 | Oxygen-enriched burner suitable for multiple heat value coal gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145741A (en) * | 2019-06-03 | 2019-08-20 | 重庆赛迪热工环保工程技术有限公司 | A kind of oxygen-enriched burner suitable for a variety of calorific value of gas |
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2019
- 2019-06-03 CN CN201920824841.2U patent/CN210511683U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145741A (en) * | 2019-06-03 | 2019-08-20 | 重庆赛迪热工环保工程技术有限公司 | A kind of oxygen-enriched burner suitable for a variety of calorific value of gas |
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