CN223499554U - Brownian gas-stabilized flame methanol combustion system - Google Patents
Brownian gas-stabilized flame methanol combustion systemInfo
- Publication number
- CN223499554U CN223499554U CN202422911955.4U CN202422911955U CN223499554U CN 223499554 U CN223499554 U CN 223499554U CN 202422911955 U CN202422911955 U CN 202422911955U CN 223499554 U CN223499554 U CN 223499554U
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- methanol
- brown gas
- pipeline
- valve
- combustion system
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Abstract
The utility model relates to the technical field of combustion equipment, in particular to a Brown gas flame-stabilizing methanol combustion system, which comprises a combustor, a Brown gas pipeline, a methanol pipeline, a fuel gas assisting pipeline and an atomizing wind pipeline, wherein the Brown gas pipeline is connected with the combustor and is used for conveying Brown gas to the combustor and forming Brown gas flames at the position of the combustor, the methanol pipeline is connected with the combustor and is used for conveying methanol to the combustor, the combustion-supporting pipeline is connected with the combustor and is used for introducing fuel gas assisting to the combustor, the atomizing wind pipeline is connected with the combustor and is used for conveying atomizing wind to the combustor so as to atomize the methanol conveyed to the combustor, and the atomized methanol can take the Brown gas flames as ignition sources. The Brown gas flame-stabilizing methanol combustion system can ensure efficient combustion of methanol, ensure full combustion of the methanol, improve the problem that incomplete combustion of the methanol is easy to occur, and reduce carbon emission.
Description
Technical Field
The utility model relates to the technical field of combustion equipment, in particular to a Brown gas flame-stabilizing methanol combustion system.
Background
The firing and production of the ceramic by utilizing hydrogen energy is a common carbon reduction production mode, wherein methanol is liquid at normal temperature, and compared with high-pressure hydrogen storage, methanol is a very good liquid hydrogen storage and transportation carrier, and the methanol does not need high-temperature and high-pressure conditions when stored and transported, so that the storage and transportation are safer and more reliable.
However, when methanol is burned, the method of directly burning the methanol alone is low in efficiency and is easy to cause the problem of incomplete combustion, if the methanol is preheated to be gasified and burned again, on the one hand, the stability of the gasification is difficult to ensure, on the other hand, the methanol is burned again after being gasified, the problems of fire removal and insufficient combustion are easy to occur, and harmful toxic gas is easy to be generated by vaporization.
Disclosure of utility model
The utility model aims to provide a Brown gas flame-stabilized methanol combustion system, which can ensure efficient combustion of methanol, ensure full combustion of the methanol, improve the problem that incomplete combustion of the methanol is easy to occur, and reduce carbon emission.
Embodiments of the utility model may be implemented as follows:
the utility model provides a Brown gas flame-stabilizing methanol combustion system, which comprises:
A burner;
The brown gas pipeline is connected with the burner and used for conveying brown gas to the burner and forming brown gas flames at the burner;
The methanol pipeline is connected with the burner and used for conveying methanol towards the burner;
A combustion-supporting gas pipeline connected with the burner for introducing the combustion-supporting gas into the burner, and
And the atomization air pipeline is connected with the burner and is used for conveying atomization air to the burner so as to atomize the methanol conveyed to the burner, wherein the atomized methanol can take Brown gas flame as an ignition source.
In an alternative embodiment, the brown gas flame-stabilizing methanol combustion system further comprises a first pressure gauge and a first cut-off valve, wherein the first pressure gauge and the first cut-off valve are sequentially arranged on the brown gas pipeline along the direction that the brown gas is conveyed to the burner in the brown gas pipeline;
The first shut-off valve is configured to close the brown gas line when the first pressure gauge detects that the pressure of the brown gas line is greater than or equal to a first preset pressure.
In an alternative embodiment, the brown gas flame-stabilized methanol combustion system further comprises an electrolysis water device connected to an end of the brown gas line remote from the burner for providing brown gas to the brown gas line, and/or,
The Brown gas flame-stabilizing methanol combustion system further comprises a first valve, a water-vapor separation device, a second cut-off valve and a first fine adjustment valve, wherein the water-vapor separation device, the first pressure gauge, the first cut-off valve, the second cut-off valve and the first fine adjustment valve are sequentially arranged on the Brown gas pipeline along the direction that the Brown gas is conveyed to the combustor through the Brown gas pipeline, at least one of the Brown gas pipeline at the upstream of the water-vapor separation device and the Brown gas pipeline at the downstream of the water-vapor separation device is provided with the first valve, and the second cut-off valve is configured to control the opening and closing of the Brown gas pipeline.
In an alternative embodiment, the brown gas flame stabilized methanol combustion system further comprises a first flame arrestor, the first flame arrestor being disposed in the brown gas line and between the electrolyzed water apparatus and the water vapor separation apparatus, and/or,
The brown gas flame-stabilizing methanol combustion system further comprises a second flame arrester which is arranged on the brown gas pipeline and positioned at the downstream of the first fine tuning valve, and/or,
The brown gas flame-stabilizing methanol combustion system also comprises a pressure reducing valve, wherein the pressure reducing valve is arranged on the brown gas pipeline and is positioned between the water-vapor separation device and the first pressure gauge, and/or,
The brown gas flame-stabilizing methanol combustion system further comprises a pneumatic relief valve which is arranged on the brown gas pipeline and between the first cut-off valve and the second cut-off valve, and/or,
The brown gas flame-stabilizing methanol combustion system further comprises a leakage detection switch, wherein the leakage detection switch is arranged on the brown gas pipeline and is positioned between the first cut-off valve and the second cut-off valve.
In an alternative embodiment, the brown gas flame stabilized methanol combustion system further comprises a nitrogen line connected to the brown gas line for delivering nitrogen to the brown gas line and the burner.
In an alternative embodiment, the brown gas flame stabilized methanol combustion system further comprises a methanol storage tank, with which the end of the methanol line remote from the burner is connected, and/or,
The brown gas flame-stabilized methanol combustion system further comprises a return line, and an inlet end and an outlet end of the return line are both connected with the methanol line so that methanol overflowed from the methanol line to the return line flows back to the methanol line.
In an alternative embodiment, the Brown gas flame-stabilized methanol combustion system includes two methanol lines connected in parallel with a methanol storage tank, and the methanol storage tank is selectively in communication with the burner through one of the two methanol lines, and/or,
The Brown gas flame-stabilizing methanol combustion system further comprises a second valve and a first filter, the methanol storage tank is connected with an output pipe, the methanol pipeline is connected with the methanol storage tank through the output pipe, and the second valve and the first filter are both arranged on the output pipe.
In an alternative embodiment, the brown gas flame-stabilized methanol combustion system further comprises a third valve, a methanol pump and a second filter, wherein the methanol pump and the second filter are sequentially arranged on the methanol pipeline along the direction that the methanol is conveyed to the burner through the methanol pipeline, and at least one of the methanol pipeline at the upstream of the methanol pump and the methanol pipeline at the downstream of the second filter is provided with the third valve.
In an alternative embodiment, the brown gas flame stabilized methanol combustion system further comprises a flow meter, the flow meter being disposed in the methanol line, and/or,
The Brown gas flame-stabilizing methanol combustion system further comprises a conveying pipeline, a pressure sensor, a first controller, a frequency converter, a first opening valve, a second controller and a temperature detection part, wherein the methanol pipeline is connected with the combustor through the conveying pipeline, the pressure sensor and the first opening valve are both arranged on the conveying pipeline, the methanol pump is electrically connected with the frequency converter, the frequency converter and the pressure sensor are both electrically connected with the first controller, the first controller is used for controlling the frequency converter to regulate and control the methanol pressure conveyed by the methanol pump according to the pressure detected by the pressure sensor, the temperature detection part and the first opening valve are both electrically connected with the second controller, and the second controller is configured to control the first opening valve to regulate and control the methanol flow conveyed by the conveying pipeline according to the temperature detected by the temperature detection part.
In an alternative embodiment, the brown gas flame-stabilized methanol combustion system further comprises a pressure stabilizing valve arranged in the atomizing air pipeline, and/or,
The Brown gas flame-stabilizing methanol combustion system further comprises a second opening valve, and the second opening valve is arranged on the fuel-assisting pipeline.
The brown gas flame-stabilized methanol combustion system provided by the embodiment of the utility model has the beneficial effects that the brown gas flame-stabilized methanol combustion system provided by the embodiment of the utility model can be used for combusting methanol, when the system is used, brown gas can be provided by using a brown gas pipeline and can be used as an ignition source for methanol combustion, the brown gas is the mixed gas of hydrogen and oxygen generated after water electrolysis, the combustion is stable, no greenhouse gas is discharged, the flame generated by using the brown gas combustion is used as the ignition source for methanol combustion, the stability and sufficiency of methanol combustion can be ensured, the problem that incomplete combustion easily occurs to methanol can be improved, the carbon emission can be reduced, the radiation capability of combustion flue gas can be increased by using water vapor generated by the brown gas and the methanol combustion, the radiation heat exchange of the flue gas and the methanol can be enhanced, the burning time can be shortened, the effects of saving energy and reducing carbon can be further achieved, the problem that the methanol is unstable in heating and vaporization is avoided, the problem of insufficient combustion caused by the fire removal of vaporization combustion can be improved, and the problem of toxic gas generated in vaporization can be avoided.
The combustion-supporting gas provided by the combustion-supporting gas pipeline for the burner can keep the air circulation in the burner, so that combustion retention caused by unsuccessful ignition is improved, and the dangerous condition of deflagration occurs during re-ignition, namely the use safety of the Brown gas flame-stabilizing methanol combustion system is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a Brown gas flame-stabilized methanol combustion system in an embodiment of the utility model;
fig. 2 is a schematic structural view of a burner according to an embodiment of the present utility model.
Icon: 010-brown gas flame-stabilizing methanol combustion system; 1-an electrolysis device; 2-a first flame arrestor; 3-a first valve; 4-a water-vapor separation device; 6-a pressure reducing valve; 7-a first pressure gauge; 8-a first shut-off valve; 9-a pneumatic relief valve; 10-a leak detection switch; 11-a second shut-off valve; 13-a first trim valve; 14-a second flame arrestor; a 16-methanol storage tank; 17-a second valve; 18-a first filter; 19-sixth valve; 20-a third valve; 21-methanol pump; 22-a second filter; 23-a flow meter; 24-overflow return valve; 25-fifth valve; 26-a pressure sensor; 27-a first controller; 28-frequency converter; 29-seventh valve; 30-a second pressure gauge; 31-a first opening valve; 32-a fourth shut-off valve; 33-a second trim valve; 34-a first fan; 35-a pressure stabilizing valve; 36-eighth valve; 37-a third pressure gauge; 38-a second fan; 39-a second opening valve; 40-a manual scale valve; 51-brown gas pipeline; a 52-methanol line; 53-a fuel gas assisting pipeline; 54-an atomization air pipeline; 55-nitrogen line; 56-a burner; 57-thermocouple; 58-a second controller; 59-branch line; 60-fourth valve; 61-a third shut-off valve; 70-a housing; 71-a cavity; 72-an air outlet; 81-brown gas pipeline; 82-an atomizing air duct; 83-methanol pipeline.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.
Referring to fig. 1, the present embodiment provides a brown gas flame-stabilizing methanol combustion system 010, which includes a burner 56, a brown gas line 51, a methanol line 52, a combustion-supporting gas line 53 and an atomized air line 54, wherein the brown gas line 51 is connected with the burner 56 for delivering brown gas to the burner 56 and forming brown gas flames at the burner 56, the methanol line 52 is connected with the burner 56 for delivering methanol to the burner 56, the combustion-supporting gas line 53 is connected with the burner 56 for introducing a fuel gas to the burner 56, and the atomized air line 54 is connected with the burner 56 for delivering atomized air to the burner 56 to atomize the methanol delivered to the burner 56, wherein the atomized methanol can take the brown gas flames as an ignition source.
When the system is used, brown gas can be provided by using the brown gas pipeline 51 and can be used as an ignition source for methanol combustion, brown gas is a mixed gas of hydrogen and oxygen generated after water electrolysis, combustion is stable, no greenhouse gas is emitted, the flame of the brown gas combustion is used as an ignition source for methanol combustion, stability and sufficiency of methanol combustion can be ensured, so that the problem that incomplete combustion easily occurs in methanol is solved, carbon emission is reduced, water vapor generated by the brown gas and the methanol combustion can increase the radiation capacity of combustion flue gas, the radiation heat exchange of the flue gas and the methanol is enhanced, the burning time is shortened, the effect of energy conservation and carbon reduction is further achieved, preheating and vaporization of the methanol are not needed, the problem of unstable heating and vaporization is avoided, the problem of insufficient combustion caused by fire removal of vaporization combustion can be solved, and the problem of toxic gas generated by vaporization is avoided.
The combustion-supporting gas provided by the combustion-supporting gas pipeline 53 to the burner 56 can keep the air circulation inside the burner 56, improve the combustion retention caused under the condition of unsuccessful ignition, and the dangerous condition of deflagration when re-ignition occurs, namely, the use safety of the Brown gas flame-stabilizing methanol combustion system 010 is improved.
The principle of atomizing methanol by atomizing wind includes spraying methanol with wind with high pressure to form mist.
The brown gas flame-stabilized methanol combustion system 010 of the embodiment further comprises an electrolytic water device 1, a first valve 3, a water-vapor separation device 4, a first pressure gauge 7, a first cut-off valve 8, a second cut-off valve 11 and a first fine tuning valve 13; the water electrolysis device 1 is connected with one end of the brown gas pipeline 51 far away from the burner 56 and is used for providing brown gas for the brown gas pipeline 51, namely, the water electrolysis device 1 is used for electrolyzing water to form hydrogen and oxygen (namely, brown gas) and can enable the hydrogen and the oxygen to be conveyed to the burner 56 through the brown gas pipeline 51; the water vapor separation device 4, the first pressure gauge 7, the first cut-off valve 8, the second cut-off valve 11 and the first fine adjustment valve 13 are sequentially arranged on the brown gas pipeline 51 along the direction that the brown gas is conveyed to the burner 56 in the brown gas pipeline 51, the gas conveying separation device can separate water vapor entering the brown gas pipeline 51 to reduce water in the brown gas conveyed in the brown gas pipeline 51 and ensure the sufficiency of the brown gas combustion, the brown gas pipeline 51 on the upstream side of the water vapor separation device 4 and the brown gas pipeline 51 on the downstream side of the water vapor separation device 4 are respectively provided with the first valve 3, the first valve 3 and the first fine adjustment valve 13 can be used for regulating and controlling the brown gas flow of the brown gas pipeline 51, the second cut-off valve 11 is configured to control the opening and closing of the brown gas pipeline 51, namely, the second cut-off valve 11 can serve as a main switch of the brown gas pipeline 51 to control the opening or closing of the brown gas pipeline 51, the first cut-off valve 8 is configured to be used as a first cut-off valve 8 to be matched with the first pressure gauge 7 to be closed when the first pressure gauge 7 detects the brown gas pipeline 51 to detect the preset pressure of the brown gas pipeline 51, and the first cut-off valve 8 can be matched with the first valve 8 to the first pressure gauge 8, and the first cut-off valve is used as a safety valve 8 is improved And the problem of damage to the burner 56 at high pressures.
In other embodiments, the first valve 3 may be provided only in the brown gas line 51 upstream of the water-vapor separation device 4 or in the brown gas line 51 downstream of the water-vapor separation device 4. Or in other embodiments the first shut-off valve 8 may also be configured to close the brown gas line 51 when the first pressure gauge 7 detects that the pressure of the brown gas line 51 is equal to the first preset pressure.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further comprises a first flame arrestor 2, wherein the first flame arrestor 2 is arranged in the brown gas pipeline 51 and is positioned between the water electrolysis device 1 and the water vapor separation device 4, the first flame arrestor 2 comprises, but is not limited to, a wet flame arrestor, and the arrangement of the first flame arrestor 2 can improve the safety of the system in use.
Optionally, the brown gas flame stabilized methanol combustion system 010 further includes a second flame arrestor 14, the second flame arrestor 14 being disposed in the brown gas line 51 downstream of the first trim valve 13, the second flame arrestor 14 including, but not limited to, a metal flame arrestor, the second flame arrestor 14 being disposed to enhance safety of the system in use.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further comprises a pressure reducing valve 6, wherein the pressure reducing valve 6 is arranged in the brown gas pipeline 51 and is positioned between the water-vapor separation device 4 and the first pressure gauge 7, and the pressure stability of the brown gas pipeline 51 can be maintained through the arrangement of the pressure reducing valve 6.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further comprises a pneumatic relief valve 9, wherein the pneumatic relief valve 9 is arranged on the brown gas pipeline 51 and is positioned between the first cut-off valve 8 and the second cut-off valve 11, and the pneumatic relief valve 9 can play roles of safety relief and system protection.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further comprises a leak detection switch 10, wherein the leak detection switch 10 is arranged on the brown gas pipeline 51 and is positioned between the first cut-off valve 8 and the second cut-off valve 11, and the leak detection switch 10 is arranged to reliably monitor whether the brown gas pipeline 51 leaks or not.
The brown gas flame-stabilized methanol combustion system 010 of the present embodiment further includes a methanol storage tank 16, and an end of the methanol line 52 remote from the burner 56 is connected to the methanol storage tank 16, and the methanol storage tank 16 is configured to store methanol and supply the methanol to the methanol line 52.
Optionally, the brown gas flame stabilized methanol combustion system 010 further includes a return line, both an inlet end and an outlet end of which are connected to the methanol line 52 such that methanol overflowed from the methanol line 52 to the return line flows back to the methanol line 52.
Further, a fifth valve 25, an overflow return valve 24 and a sixth valve 19 are arranged on the return line, and the fifth valve 25, the overflow return valve 24 and the sixth valve 19 are distributed in sequence from the inlet end to the outlet end of the return line.
In this embodiment, the brown gas flame-stabilized methanol combustion system 010 includes two methanol lines 52, the two methanol lines 52 are connected in parallel with the methanol storage tank 16, and the methanol storage tank 16 is selectively connected to the burner 56 through one of the two methanol lines 52; so set up, when using this system to burn methyl alcohol, can utilize one of them methyl alcohol pipeline 52 to carry methyl alcohol, another methyl alcohol pipeline 52 then can be as reserve, improve the setting of only one methyl alcohol pipeline 52 when breaking down, can't in time maintain and lead to the system to be unable to use, the problem of inefficiency.
Of course, in other embodiments, the number of the methanol lines 52 of the brown gas flame stabilized methanol combustion system 010 may be one, three, etc., and is not particularly limited herein.
Further, the Brown gas flame-stabilized methanol combustion system 010 further comprises a third valve 20, a methanol pump 21 and a second filter 22, wherein the methanol pump 21 and the second filter 22 are sequentially arranged on the methanol pipeline 52 along the direction that the methanol is conveyed to the burner 56 in the methanol pipeline 52, and the third valve 20 is arranged on the methanol pipeline 52 at the upstream of the methanol pump 21 and the methanol pipeline 52 at the downstream of the second filter 22. The methanol pump 21 can provide power for conveying methanol in the methanol pipeline 52, and can regulate and control the flow and the conveying pressure of the methanol by using the methanol pump 21, the second filter 22 can reduce impurities in the methanol pipeline 52 and improve the problem of blockage of the methanol pipeline 52, and the third valve 20 can regulate and control the on-off and flow of the methanol pipeline 52 and provide a safety protection effect.
Of course, in other embodiments, the third valve 20 may be provided at one of the methanol line 52 upstream of the methanol pump 21 and the methanol line 52 downstream of the second filter 22.
In this way, it is ensured that the methanol can be returned by the return line when either one of the two methanol lines 52 is used.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further includes a flow meter 23, the flow meter 23 is disposed on the methanol pipeline 52, and the flow rate of the methanol can be detected in real time by the arrangement of the flow meter 23.
Further, the upstream methanol line 52 and the downstream methanol line 52 of the flow meter 23 are each provided with a third valve 20. Of course, in other embodiments, neither the upstream methanol line 52 nor the downstream methanol line 52 of the flow meter 23 is provided with the third valve 20, or one of the upstream methanol line 52 and the downstream methanol line 52 of the flow meter 23 is provided with the third valve 20.
The components arranged on the two methanol pipelines 52 are not identical, the brown gas flame-stabilizing methanol combustion system 010 further comprises a branch pipeline 59, the two methanol pipelines 52 are connected through the branch pipeline 59, one of the methanol pipelines 52 is provided with a flowmeter 23, the other methanol pipeline 52 is not provided with the flowmeter 23, the connecting position of the branch pipeline 59 and the methanol pipeline 52 provided with the flowmeter 23 is positioned at the upstream of the flowmeter 23, and when the other methanol pipeline 52 conveys methanol, the methanol can flow through the flowmeter 23 through the branch pipeline 59 to be metered and conveyed to the combustor 56, so that the investment of the flowmeter 23 can be reduced, and the cost is reduced.
Optionally, two third valves 20 are provided between the second filter 22 of the methanol line 52 and the flow meter 23, and the connection position of the branch line 59 and the methanol line 52 provided with the flow meter 23 is located between the two third valves 20.
Further, the methanol line 52 not provided with the flow meter 23 is also provided with a fourth valve 60, the fourth valve 60 is positioned downstream of the junction of the branch line 59 and the methanol line 52 not provided with the flow meter 23, that is, the junction of the branch line 59 and the methanol line 52 not provided with the flow meter 23 is positioned between the third valve 20 and the fourth valve 60 positioned downstream of the second filter 22 and provided with the corresponding methanol line 52, so that when the methanol line 52 provided with the flow meter 23 fails, the fourth valve 60 can be opened so that the methanol line 52 not provided with the flow meter 23 directly conveys methanol to the burner 56 without passing through the flow meter 23.
The brown gas flame-stabilized methanol combustion system 010 of the present embodiment further includes a conveying pipeline, a pressure sensor 26, a first controller 27, a frequency converter 28, a first opening valve 31, a second controller 58 and a temperature detecting member, wherein the methanol pipeline 52 is connected with the combustor 56 through the conveying pipeline, an inlet end of a return pipeline is connected with the methanol pipeline 52 through the conveying pipeline, the pressure sensor 26 and the first opening valve 31 are both arranged on the conveying pipeline, an inlet end of the return pipeline is located at an upstream of the pressure sensor 26, the methanol pump 21 is electrically connected with the frequency converter 28, the frequency converter 28 and the pressure sensor 26 are both electrically connected with the first controller 27, the first controller 27 is used for controlling the pressure of methanol conveyed by the methanol pump 21 according to the pressure detected by the pressure sensor 26, the temperature detecting member and the first opening valve 31 are both electrically connected with the second controller 58, the second controller 58 is configured to control the flow rate of the methanol conveyed by the first opening valve 31 according to the temperature detected by the temperature detecting member, and the temperature detecting member includes but is not limited to a thermocouple 57 and a temperature sensor.
The arrangement can more flexibly regulate and control the flow rate and the delivery pressure of the methanol according to the requirement so as to ensure the stability of the pressure of the methanol and improve the stability of the combustion of the methanol, for example, when the pressure sensor 26 detects the pressure reduction of the delivery pipeline, the first controller 27 receives a first detection signal of the pressure sensor 26 and controls the frequency converter 28 to regulate and control the methanol pump 21 to increase the delivery pressure of the methanol, and when the pressure sensor 26 detects the pressure increase of the delivery pipeline, the first controller 27 receives a second detection signal of the pressure sensor 26 and controls the frequency converter 28 to regulate and control the methanol pump 21 to reduce the delivery pressure of the methanol; and the flow rate of the methanol and the required temperature are ensured to be matched, for example, when the brown gas flame-stabilizing methanol combustion system 010 is used for kiln calcining ceramic products, if the temperature detection part detects that the temperature is lower than the temperature required by calcining, the second controller 58 receives a first signal sent by the temperature detection part, the first opening valve 31 can be controlled to increase the flow rate of the methanol conveyed by the conveying pipeline so as to strengthen the combustion and realize the temperature rise, and similarly, if the temperature detection part detects that the temperature is higher than the temperature required by calcining, the second controller 58 receives a second signal generated by the temperature detection part, the first opening valve 31 can be controlled to reduce the flow rate of the methanol conveyed by the conveying pipeline so as to reduce the input of heat and realize the temperature reduction.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further includes a seventh valve 29, a second pressure gauge 30, a fourth shut-off valve 32 and a second trim valve 33 disposed in the delivery line, the seventh valve 29 and the second pressure gauge 30 are each disposed between the pressure sensor 26 and the first opening valve 31, and the seventh valve 29 is located upstream of the second pressure gauge 30, the fourth shut-off valve 32 and the second trim valve 33 are each located downstream of the first opening valve 31, and the fourth shut-off valve 32 is located upstream of the second trim valve 33. The seventh valve 29 and the second fine tuning valve 33 can be used for regulating and controlling the flow rate of methanol delivery, and the second pressure gauge 30 can feed back the pressure condition of the delivery pipeline in real time, so that workers can conveniently and timely master the pressure condition of the delivery pipeline, and dangerous situations are reduced.
Optionally, the brown gas flame-stabilized methanol combustion system 010 further includes a second valve 17 and a first filter 18, the methanol storage tank 16 is connected with an output pipe, the methanol pipeline 52 is connected with the methanol storage tank 16 through the output pipe, the second valve 17 and the first filter 18 are both disposed on the output pipe, and a connection position of the methanol pipeline 52 and the output pipe is located at a downstream of the first filter 18. The second valve 17 can be used as one of the main switches for outputting methanol from the methanol storage tank 16, and the first filter 18 can reduce the transportation of solid impurities in the methanol pipeline 52, thereby improving the problem that the methanol pipeline 52 is blocked.
The brown gas flame-stabilized methanol combustion system 010 of the embodiment further comprises a pressure-stabilizing valve 35, wherein the pressure-stabilizing valve 35 is arranged on the atomizing air pipeline 54, and the pressure-stabilizing valve 35 is used for keeping the stable pressure of the atomizing air pipeline 54 so as to ensure good atomizing effect of methanol.
Further, the Brown gas flame-stabilized methanol combustion system 010 further comprises a first fan 34 (e.g., a Roots blower), an eighth valve 36 and a third pressure gauge 37, wherein the first fan 34 is connected to the input end of the atomizing air pipe 54, and the eighth valve 36 and the third pressure gauge 37 are sequentially disposed downstream of the pressure stabilizing valve 35. The eighth valve 36 can be used for controlling the opening and closing of the atomizing air pipeline 54, and the third pressure gauge 37 can feed back the pressure condition of the atomizing air pipeline 54 in real time.
The brown gas flame-stabilized methanol combustion system 010 of the present embodiment further includes a second fan 38 and a second opening valve 39, the second fan 38 is disposed at an input end of the fuel gas assisting pipe 53, and the second opening valve 39 is disposed at the fuel gas assisting pipe 53. The second opening valve 39 is arranged to regulate the size of the fuel gas pipeline 53 for delivering fuel gas so as to ensure the full combustion of methanol.
Optionally, the combustion-supporting gas pipeline 53 is further provided with a manual etching valve 40, the manual etching valve 40 is located upstream or downstream of the second etching valve 39, and when the system is used, the opening degree of the manual etching valve 40 can be manually controlled according to the requirement, so that the flow rate of the combustion-supporting gas is more controllable.
Optionally, the brown gas flame stabilized methanol combustion system 010 further comprises a nitrogen line 55, the nitrogen line 55 being connected to the brown gas line 51 for delivering nitrogen to the brown gas line 51 and the burner 56. Thus, when using the system to burn methanol, nitrogen gas can be introduced into the brown gas line 51 by the nitrogen gas line 55 to purge, and purging can be stopped after the gas remaining in the brown gas line 51 is discharged, so that the cleanliness and stability of the subsequent combustion can be ensured.
Further, a third shut-off valve 61 is provided in the nitrogen line 55 for controlling the opening and closing of the nitrogen line 55.
Alternatively, the position where the nitrogen line 55 is connected to the brown gas line 51 may be upstream of the first trim valve 13 and downstream of the second shut-off valve 11. Thus, the adequacy of purging the brown gas line 51 with nitrogen gas can be ensured.
Alternatively, the first shut-off valve 8, the second shut-off valve 11, the third shut-off valve 61 and the fourth shut-off valve 32 each include, but are not limited to, a solenoid shut-off valve, a ball valve, the first valve 3, the second valve 17, the third valve 20, the fourth valve 60, the fifth valve 25, the sixth valve 19, the seventh valve 29 and the eighth valve 36 each include, but are not limited to, a ball valve, a solenoid valve, the first trim valve 13 and the second trim valve 33 each include, but are not limited to, a manual trim valve, an electric trim valve, and the first opening valve 31 and the second opening valve 39 each include, but are not limited to, an electric actuator, a solenoid valve, an electric valve.
Optionally, referring to fig. 2, the combustor 56 includes a housing 70, a brown gas pipe 81, an atomized air pipe 82 and a methanol pipe 83, wherein the housing 70 has a cavity 71, the cavity 71 is communicated with a combustion-supporting gas pipe 53 for delivering a combustion-supporting gas, the housing 70 has a first end and a second end which are distributed relatively, the second end is provided with an air outlet 72 communicated with the cavity 71, the combustion-supporting gas can be blown out from the air outlet 72, two ends of the brown gas pipe 81 are plugged at the first end and the second end of the housing 70, one end of the brown gas pipe 81 is connected with the brown gas pipe 51, so that the brown gas is plugged at one end of the second end of the housing 70 from the brown gas pipe 81, and can form a brown gas flame at the second end of the housing 70, two ends of the atomized air pipe 82 are plugged at the first end and the second end of the housing 70, one end of the atomized air pipe 82 is connected with the atomized air pipe 54, one end of the methanol pipe 83 is plugged at the first end of the housing 70, and the methanol pipe 83 is connected with the methanol pipe 82, and the other end of the methanol pipe 83 is connected with the atomized air pipe 82, and the methanol pipe 82 is connected with the other end of the atomized air pipe 82, and the methanol pipe 82 is connected with the first end of the atomized air pipe 82, and the atomized air pipe 82 is connected with the methanol pipe 82, and the atomized air source is connected with the end of the methanol pipe 82, and the methanol pipe is capable of being atomized and the atomized air source.
The embodiment also provides a method for burning the methanol by using the Brown gas flame-stabilizing methanol burning system 010 to burn the methanol in a kiln, wherein the method for burning the methanol by using the Brown gas flame-stabilizing methanol includes the following steps:
Purging the brown gas pipeline 51 by nitrogen, and stopping purging after discharging the residual gas in the brown gas pipeline 51;
Delivering combustion-supporting gas to the burner 56 by the combustion-supporting gas pipeline 53, and maintaining the flow of the combustion-supporting gas in the burner 56;
The brown gas is delivered to the burner 56 by the brown gas line 51, and the brown gas delivered to the burner 56 is ignited to form a brown gas flame;
Delivering atomized air to the burner 56 by using an atomized air pipe 54, delivering methanol to the burner 56 by using a methanol pipe 52, and atomizing the methanol entering the burner 56 by the atomized air;
the atomized methanol was ignited using a brown gas flame as an ignition source.
In the case of burning methanol, the brown gas flame is used as a stable ignition source, and the combustion of the brown gas is required to be maintained during the whole methanol combustion process so as to maintain the continuous supply of the fire source.
Optionally, the Brown gas flame-stabilized methanol combustion method further comprises increasing the flow rate delivered to the combustor 56 to raise the temperature of the hearth of the kiln when the temperature of the methanol is lower than a first preset value, decreasing the flow rate delivered to the combustor 56 to lower the temperature of the hearth of the kiln when the temperature of the methanol is higher than a second preset value, and when the Brown gas flame-stabilized methanol combustion system 010 is used for kiln calcining ceramic products, the second controller 58 can control the first opening valve 31 to increase the flow rate of the methanol delivered by the delivery pipeline to strengthen the combustion and realize the temperature rise if the temperature detecting element detects that the temperature is lower than the first preset value, and can control the first opening valve 31 to decrease the flow rate of the methanol delivered by the delivery pipeline to reduce the heat input and realize the temperature drop if the temperature detecting element detects that the temperature is higher than the second preset value.
Optionally, the first preset value is smaller than the second preset value, and in other embodiments, the first preset value may be equal to the second preset value, which is not limited herein.
Optionally, when the flow rate of the methanol is increased, the pressure and the flow rate of the atomizing wind can be increased to ensure that a large amount of methanol can be reliably atomized, and when the flow rate of the methanol is reduced, the pressure and the flow rate of the atomizing wind can be reduced to solve the problems of too fast atomization and output of the methanol.
Optionally, the size of the auxiliary fuel gas can be adjusted when the methanol is combusted, so that the sufficiency of the methanol combustion is ensured, for example, the auxiliary fuel gas can be adjusted when the atomized methanol is increased, and the auxiliary fuel gas can be adjusted to be smaller when the atomized methanol is reduced.
In summary, the brown gas flame-stabilized methanol combustion system 010 and the method can ensure efficient combustion of methanol, ensure full combustion of methanol, improve the problem that incomplete combustion of methanol is easy to occur, and reduce carbon emission.
The present utility model is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
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| CN202422911955.4U CN223499554U (en) | 2024-11-27 | 2024-11-27 | Brownian gas-stabilized flame methanol combustion system |
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| CN202422911955.4U CN223499554U (en) | 2024-11-27 | 2024-11-27 | Brownian gas-stabilized flame methanol combustion system |
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