CN219199161U - Kiln oxygen-enriched combustion device - Google Patents
Kiln oxygen-enriched combustion device Download PDFInfo
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- CN219199161U CN219199161U CN202223033057.0U CN202223033057U CN219199161U CN 219199161 U CN219199161 U CN 219199161U CN 202223033057 U CN202223033057 U CN 202223033057U CN 219199161 U CN219199161 U CN 219199161U
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- oxygen
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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 provides a kiln oxygen-enriched combustion device, which comprises an oxygen-enriched input system, wherein the oxygen-enriched input system and a fuel gas input system are connected into a kiln, the oxygen-enriched input system comprises an oxygen-enriched main pipeline and an oxygen-enriched branch pipeline, a first main pipeline proportional valve is arranged on the right side of a first main pipeline electromagnetic valve, the right side of the oxygen-enriched main pipeline is connected with the oxygen-enriched branch pipeline, the fuel gas input system comprises a fuel gas main pipeline and a fuel gas branch pipeline, a second main pipeline proportional valve is arranged on the right side of a second main pipeline electromagnetic valve, and the right side of the fuel gas main pipeline is connected with the fuel gas branch pipeline.
Description
Technical Field
The utility model relates to a kiln oxygen-enriched combustion device, and belongs to the technical field of kiln oxygen enrichment.
Background
The gas kiln is a kiln using gas as combustion heat source, and is mainly used for calcining ceramic, glass and the like, and the gas can be natural gas, coal gas or liquefied gas according to the requirements. In the using process of the gas kiln, the high-temperature-resistant spray nozzle is used for directly sending the gas into the gas kiln, and combustion air is directly sprayed into the kiln, so that the gas is fully combusted.
Chinese patent No.: CN115013834a discloses an oxygen-enriched combustion-supporting method of a gas kiln, which adopts a method of premixing oxygen-enriched air and gas to realize oxygen-enriched local combustion-supporting, solves the problem that air is directly blown into the kiln to reduce the temperature in the kiln, reduces the amount of discharged nitrogen, avoids the nitrogen to discharge and take away a large amount of heat, ensures the temperature in the kiln to be stable, and because the oxygen-enriched air is micro positive pressure less than or equal to 1kPa, the air quantity does not influence the combustion and does not interfere or influence the original combustion environment in the kiln, but in the technical scheme, the gas and the oxygen-enriched air are directly mixed in an ejector, so that the mixing ratio of the gas and the oxygen-enriched air is not regulated and controlled sufficiently, the gas cannot reach the optimal combustion environment, the gas combustion is insufficient, and an oxygen-enriched combustion device is urgently needed at present to solve the problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model can lead the oxygen-enriched gas to be fully mixed with the natural gas in the mixer and then enter the gas burner for combustion, can ensure that the oxygen-enriched gas and the natural gas reach the optimal combustion proportion, improve the combustion efficiency, increase the flame filling degree, increase the flame blackness, reduce the oxygen-enriched energy-saving effects such as exhaust heat loss and the like, and achieve the combustion energy-saving effect.
In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a kiln oxygen-enriched combustion device, includes oxygen-enriched input system, gas input system and kiln, oxygen-enriched input system is connected with gas input system, oxygen-enriched input system all inserts the kiln with gas input system, oxygen-enriched input system includes oxygen-enriched main line, oxygen-enriched branch pipeline, oxygen-enriched pressure gauge, first main line solenoid valve, first main line proportional valve, first branch pipeline check valve and first branch pipeline ball valve, oxygen-enriched main line left side section is provided with the oxygen-enriched pressure gauge, oxygen-enriched pressure gauge right side is provided with first main line solenoid valve, first main line solenoid valve right side is provided with first main line proportional valve, oxygen-enriched main line right side is connected with the oxygen-enriched branch pipeline, oxygen-enriched branch pipeline is provided with first branch pipeline check valve on the right side, gas input system includes gas main line, gas branch pipeline, gas pressure gauge, second main line solenoid valve, second main line proportional valve and second branch pipeline ball valve, gas main line left side is provided with first main line solenoid valve, second main line solenoid valve and second branch pipeline solenoid valve, the main line is provided with the gas main line right side is provided with the second main line proportional valve, the second main line is provided with the gas valve right side.
Further, a plurality of groups of gas burners are arranged on the left side inside the kiln, and a mixer is connected to the left side of each group of gas burners.
Further, the right side of the oxygen-enriched main pipeline is connected with a plurality of groups of oxygen-enriched component pipelines, the right side of the fuel gas main pipeline is connected with a plurality of groups of fuel gas component pipelines, and a plurality of groups of oxygen-enriched component pipelines and a plurality of groups of fuel gas component pipelines are connected into the mixer.
Further, the first main line solenoid valve is associated with a second main line solenoid valve signal, and the first branch line check valve is associated with a second main line proportional valve signal.
Further, the internal pressure of the oxygen-enriched main pipeline is 2-5kpa, the internal concentration of the oxygen-enriched main pipeline is 30-50%, the internal pressure of the fuel gas main pipeline is 3-5kpa, and the internal pressure of the oxygen-enriched main pipeline is lower than the internal pressure of the fuel gas main pipeline.
Further, a cyclone plate is arranged in the mixer.
By adopting the technical scheme, the utility model has the beneficial effects that: according to the kiln oxygen-enriched combustion device, through the arranged oxygen-enriched main pipeline, the oxygen-enriched branch pipeline, the first main pipeline electromagnetic valve, the first main pipeline proportional valve, the first branch pipeline check valve, the first branch pipeline ball valve, the gas main pipeline, the gas branch pipeline, the second main pipeline electromagnetic valve, the second main pipeline proportional valve, the second branch pipeline ball valve and the mixer, the oxygen-enriched gas can be fully mixed with the natural gas in the mixer and then enter the gas burner for combustion, the optimal combustion proportion of the oxygen-enriched gas and the natural gas can be ensured, the combustion efficiency can be improved, the flame filling degree can be increased, the flame blackness can be increased, the exhaust heat loss can be reduced, the oxygen-enriched energy-saving effect can be achieved, the problems that in the prior art, the gas and the oxygen-enriched air are directly mixed in the ejector, the mixing is insufficient and uniform, the mixing proportion of the gas and the oxygen-enriched air can not be regulated, the gas can not reach the optimal combustion environment, and the gas combustion is insufficient can be solved, and the combustion energy-saving effect of the utility model can be improved.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the overall structure of an oxyfuel combustion device of a kiln according to the present utility model;
FIG. 2 is a schematic flow chart of an oxygen-enriched combustion device of a kiln according to the utility model;
in the figure: the system comprises a 1-oxygen-enriched input system, a 100-oxygen-enriched main pipeline, a 101-oxygen-enriched branch pipeline, a 11-oxygen-enriched pressure gauge, a 12-first main pipeline electromagnetic valve, a 13-first main pipeline proportional valve, a 14-first branch pipeline check valve, a 15-first branch pipeline ball valve, a 2-gas input system, a 200-gas main pipeline, a 201-gas branch pipeline, a 21-gas pressure gauge, a 22-second main pipeline electromagnetic valve, a 23-second main pipeline proportional valve, a 24-second branch pipeline ball valve, a 3-kiln, a 31-gas burner and a 32-mixer.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1-2, the present utility model provides a technical solution: the kiln oxygen-enriched combustion device comprises an oxygen-enriched input system 1, a fuel gas input system 2 and a kiln 3, wherein the oxygen-enriched input system 1 is connected with the fuel gas input system 2, and the oxygen-enriched input system 1 and the fuel gas input system 2 are connected into the kiln 3;
the oxygen-enriched input system 1 comprises an oxygen-enriched main pipeline 100, an oxygen-enriched sub-pipeline 101, an oxygen-enriched pressure gauge 11, a first main pipeline electromagnetic valve 12, a first main pipeline proportional valve 13, a first sub-pipeline check valve 14 and a first sub-pipeline ball valve 15, wherein the oxygen-enriched pressure gauge 11 is arranged at the left section of the oxygen-enriched main pipeline 100, the first main pipeline electromagnetic valve 12 is arranged at the right side of the oxygen-enriched pressure gauge 11, the first main pipeline proportional valve 13 is arranged at the right side of the first main pipeline electromagnetic valve 12, the oxygen-enriched sub-pipeline 101 is connected at the right side of the oxygen-enriched main pipeline 100, the first sub-pipeline check valve 14 is arranged on the oxygen-enriched sub-pipeline 101, and the first sub-pipeline ball valve 15 is arranged at the right side of the first sub-pipeline check valve 14;
the fuel gas input system 2 includes fuel gas main line 200, fuel gas branch line 201, fuel gas pressure gauge 21, second main line solenoid valve 22, second main line proportional valve 23 and second branch line ball valve 24, fuel gas main line 200 left segment is provided with fuel gas pressure gauge 21, fuel gas pressure gauge 21 right side is provided with second main line solenoid valve 22, second main line solenoid valve 22 right side is provided with second main line proportional valve 23, fuel gas main line 200 right side is connected with fuel gas branch line 201, be provided with second branch line ball valve 24 on the fuel gas branch line 201, this design has solved in the prior art scheme fuel gas and oxygen-enriched air direct mix in the sprayer, result in mixing insufficiently even, and the mixed proportion of fuel gas and oxygen-enriched air can not regulate and control, can lead to the fuel gas unable to reach best combustion environment, the insufficient problem of fuel gas burning.
The left side inside the kiln 3 is provided with a plurality of groups of gas burners 31, and the left side of each group of gas burners 31 is connected with a mixer 32.
The right side of the oxygen-enriched main pipeline 100 is connected with a plurality of groups of oxygen-enriched component pipelines 101, the right side of the gas main pipeline 200 is connected with a plurality of groups of gas component pipelines 201, the plurality of groups of oxygen-enriched component pipelines 101 and the plurality of groups of gas component pipelines 201 are connected into the mixer 32, and the gas and the oxygen-enriched gas can be fully mixed through the mixer 32 and then simultaneously enter the gas burner 31 for combustion.
The first main pipeline electromagnetic valve 12 is in signal connection with the second main pipeline electromagnetic valve 22, the first branch pipeline check valve 14 is in signal connection with the second main pipeline proportional valve 23, and the design can control the oxygen-enriched main pipeline 100 and the gas main pipeline 200 to be simultaneously opened and simultaneously closed, and can achieve the effect that the opening proportion of the oxygen-enriched main pipeline 100 is the same as that of the gas main pipeline 200.
The internal pressure of the oxygen-enriched main pipeline 100 is 2-5kpa, the internal concentration of the oxygen-enriched main pipeline 100 is 30-50%, the internal pressure of the fuel gas main pipeline 200 is 3-5kpa, and the internal pressure of the oxygen-enriched main pipeline 100 is lower than the internal pressure of the fuel gas main pipeline 200.
The mixer 32 is internally provided with a cyclone plate, and oxygen-enriched gas can be fully and uniformly mixed by the cyclone plate.
As an embodiment of the present utility model: natural gas (3-5 kpa) enters each gas sub-pipeline 201 in a gas main pipeline 200 through a second main pipeline electromagnetic valve 22 and a second main pipeline proportional valve 23, enters a mixer 32 through a second sub-pipeline ball valve 24 of each gas sub-pipeline 201, is separated into each oxygen-enriched sub-pipeline 101 in an oxygen-enriched main pipeline 100 through a first main pipeline electromagnetic valve 12 and a first main pipeline proportional valve 13, enters the mixer 32 through a first sub-pipeline check valve 14 and a first sub-pipeline ball valve 15 of each oxygen-enriched sub-pipeline 101, and enters a gas burner 31 after being fully and uniformly mixed in the mixer 32, then burning in kiln 3, first main line solenoid valve 12 is correlated with second main line solenoid valve 22 signal, first branch pipeline check valve 14 is correlated with second main line proportional valve 23 signal, oxygen-enriched main line 100 is opened simultaneously with gas main line 200, simultaneously close, reach the effect that oxygen-enriched main line 100 aperture proportion is the same with gas main line 200 aperture proportion, the inside aviation baffle that is provided with of blender 32, can make oxygen-enriched and gas mix fully evenly through the aviation baffle, improve combustion efficiency, increase flame filling degree, increase flame blackness, reduce oxygen-enriched energy-saving effects such as exhaust heat loss, reach the combustion energy-saving effect.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a kiln oxygen boosting combustion device, includes oxygen boosting input system, gas input system and kiln, its characterized in that: the oxygen-enriched input system is connected with the fuel gas input system, and both the oxygen-enriched input system and the fuel gas input system are connected to the kiln;
the oxygen-enriched input system comprises an oxygen-enriched main pipeline, an oxygen-enriched branch pipeline, an oxygen-enriched pressure gauge, a first main pipeline electromagnetic valve, a first main pipeline proportional valve, a first branch pipeline check valve and a first branch pipeline ball valve, wherein the left section of the oxygen-enriched main pipeline is provided with the oxygen-enriched pressure gauge, the right side of the oxygen-enriched pressure gauge is provided with the first main pipeline electromagnetic valve, the right side of the first main pipeline electromagnetic valve is provided with the first main pipeline proportional valve, the right side of the oxygen-enriched main pipeline is connected with the oxygen-enriched branch pipeline, the oxygen-enriched branch pipeline is provided with the first branch pipeline check valve, and the right side of the first branch pipeline check valve is provided with the first branch pipeline ball valve;
the fuel gas input system comprises a fuel gas main pipeline, a fuel gas sub-pipeline, a fuel gas pressure gauge, a second main pipeline electromagnetic valve, a second main pipeline proportional valve and a second sub-pipeline ball valve, wherein the fuel gas pressure gauge is arranged at the left section of the fuel gas main pipeline, the second main pipeline electromagnetic valve is arranged on the right side of the fuel gas pressure gauge, the second main pipeline proportional valve is arranged on the right side of the second main pipeline electromagnetic valve, the right side of the fuel gas main pipeline is connected with the fuel gas sub-pipeline, and the second sub-pipeline ball valve is arranged on the fuel gas sub-pipeline.
2. The kiln oxycombustion device of claim 1, characterized in that: the left side inside the kiln is provided with a plurality of groups of gas burners, and the left side of each group of gas burners is connected with a mixer.
3. A kiln oxyfuel combustion apparatus as in claim 2, wherein: the right side of the oxygen-enriched main pipeline is connected with a plurality of groups of oxygen-enriched component pipelines, the right side of the fuel gas main pipeline is connected with a plurality of groups of fuel gas component pipelines, and a plurality of groups of oxygen-enriched component pipelines and a plurality of groups of fuel gas component pipelines are connected into the mixer.
4. The kiln oxycombustion device of claim 1, characterized in that: the first main line solenoid valve is associated with a second main line solenoid valve signal and the first branch line check valve is associated with a second main line proportional valve signal.
5. The kiln oxycombustion device of claim 1, characterized in that: the internal pressure of the oxygen-enriched main pipeline is 2-5kpa, the internal concentration of the oxygen-enriched main pipeline is 30-50%, the internal pressure of the fuel gas main pipeline is 3-5kpa, and the internal pressure of the oxygen-enriched main pipeline is lower than the internal pressure of the fuel gas main pipeline.
6. A kiln oxyfuel combustion apparatus as in claim 3, wherein: the mixer is internally provided with a cyclone plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223033057.0U CN219199161U (en) | 2022-11-15 | 2022-11-15 | Kiln oxygen-enriched combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223033057.0U CN219199161U (en) | 2022-11-15 | 2022-11-15 | Kiln oxygen-enriched combustion device |
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| Publication Number | Publication Date |
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| CN219199161U true CN219199161U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223033057.0U Active CN219199161U (en) | 2022-11-15 | 2022-11-15 | Kiln oxygen-enriched combustion device |
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| CN (1) | CN219199161U (en) |
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- 2022-11-15 CN CN202223033057.0U patent/CN219199161U/en active Active
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