Brown gas flame-stabilizing methanol combustion system

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 combustion-supporting gas pipeline and an atomizing air pipeline, the Brown gas pipeline is connected with the combustor and used for conveying Brown gas to the combustor, and Brown gas flames can be formed 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 gas pipeline is connected with the combustor and is used for introducing combustion-supporting gas into the combustor; the atomization air pipeline is connected with the combustor and used for conveying atomization air to the combustor so that the methyl alcohol conveyed to the combustor can be atomized, and the atomized methyl alcohol can take Brown gas flames as an ignition source. According to the Brown gas flame-stabilizing methanol combustion system, efficient combustion of methanol can be ensured, sufficient combustion of methanol is ensured, the problem that methanol is prone to incomplete combustion is solved, and carbon emission is reduced.

Description

Technical Field

[0001] This utility model relates to the field of combustion equipment technology, and more specifically, to a Brownian gas stabilized flame methanol combustion system. Background Technology

[0002] Using hydrogen energy for ceramic firing and production is a common carbon reduction production method. Methanol is a liquid at room temperature, and compared with high-pressure hydrogen storage, methanol is a very good liquid hydrogen storage and transportation carrier. Methanol does not require high temperature and high pressure conditions during storage and transportation, making storage and transportation safer and more reliable.

[0003] However, when burning methanol, directly burning methanol alone is inefficient and prone to incomplete combustion. If methanol is preheated to vaporize before combustion, it is difficult to ensure the stability of vaporization. Furthermore, vaporization before combustion can easily lead to flameout and incomplete combustion. Vaporization can also easily produce harmful toxic gases. Utility Model Content

[0004] The purpose of this invention is to provide a Brownian gas stabilized flame methanol combustion system that can ensure efficient and complete combustion of methanol, improve the problem of incomplete combustion of methanol, and reduce carbon emissions.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] This utility model provides a Brownian gas stabilized flame methanol combustion system, comprising:

[0007] Burner;

[0008] Brown gas line, which is connected to the burner, is used to supply Brown gas to the burner and can form a Brown gas flame at the burner;

[0009] The methanol pipeline is connected to the burner and is used to supply methanol toward the burner;

[0010] A combustion-supporting gas pipeline, which connects to the burner, is used to supply combustion-supporting gas to the burner; and,

[0011] The atomizing air duct is connected to the burner and is used to supply atomizing air to the burner so that the methanol supplied to the burner can be atomized. The atomized methanol can be ignited by a Brownian gas flame.

[0012] In an optional embodiment, the Brown gas flame-stabilized methanol combustion system further includes a first pressure gauge and a first shut-off valve, which are sequentially installed in the Brown gas pipeline along the direction in which Brown gas is delivered to the burner in the Brown gas pipeline.

[0013] The first shut-off valve is configured to close the Brown gas line when the first pressure gauge detects that the pressure in the Brown gas line is greater than or equal to a first preset pressure.

[0014] In an optional embodiment, the Brown gas stabilized methanol combustion system further includes a water electrolysis device connected to the end of the Brown gas pipeline furthest from the burner, for supplying Brown gas to the Brown gas pipeline; and / or,

[0015] The Brown gas stabilized methanol combustion system also includes a first valve, a water vapor separator, a second shut-off valve, and a first fine-tuning valve; along the direction in which Brown gas is transported to the burner in the Brown gas pipeline, the water vapor separator, the first pressure gauge, the first shut-off valve, the second shut-off valve, and the first fine-tuning valve are sequentially installed in the Brown gas pipeline; at least one of the Brown gas pipeline upstream of the water vapor separator and the Brown gas pipeline downstream of the water vapor separator is equipped with the first valve; wherein, the second shut-off valve is configured to control the opening and closing of the Brown gas pipeline.

[0016] In an optional embodiment, the Brown gas stabilized methanol combustion system further includes a first flame arrester, which is disposed in the Brown gas pipeline and located between the water electrolysis unit and the water vapor separation unit; and / or,

[0017] The Brown gas stabilized methanol combustion system also includes a second flame arrester, which is located in the Brown gas line and downstream of the first fine-tuning valve; and / or,

[0018] The Brown gas stabilized-flame methanol combustion system also includes a pressure reducing valve, which is located in the Brown gas pipeline between the water vapor separator and the first pressure gauge; and / or,

[0019] The Brown gas stabilized methanol combustion system also includes a pneumatic vent valve, which is located in the Brown gas pipeline and between the first and second shut-off valves; and / or,

[0020] The Brown gas stabilized flame methanol combustion system also includes a leak detection switch, which is installed in the Brown gas pipeline and located between the first shut-off valve and the second shut-off valve.

[0021] In an optional embodiment, the Brown gas stabilized methanol combustion system further includes a nitrogen line connected to the Brown gas line for supplying nitrogen to the Brown gas line and the burner.

[0022] In an optional embodiment, the Brown gas stabilized flame methanol combustion system further includes a methanol storage tank, with the end of the methanol pipeline furthest from the burner connected to the methanol storage tank; and / or,

[0023] The Brownian gas stabilized flame methanol combustion system also includes a return line, the inlet and outlet of which are connected to the methanol line so that methanol overflowing from the methanol line to the return line flows back to the methanol line.

[0024] In an optional embodiment, the Brown gas stabilized flame methanol combustion system includes two methanol lines connected in parallel to a methanol storage tank, and the methanol storage tank is optionally connected to the burner through one of the two methanol lines; and / or,

[0025] The Brownian gas stabilized flame methanol combustion system also includes a second valve and a first filter. The methanol storage tank is connected to an output pipe, and the methanol pipeline is connected to the methanol storage tank through the output pipe. Both the second valve and the first filter are located on the output pipe.

[0026] In an optional embodiment, the Brown gas stabilized flame methanol combustion system further includes a third valve, a methanol pump, and a second filter. Along the direction in which methanol is transported to the burner in the methanol pipeline, the methanol pump and the second filter are sequentially arranged in the methanol pipeline, and at least one of the methanol pipeline upstream of the methanol pump and the methanol pipeline downstream of the second filter is provided with a third valve.

[0027] In an optional embodiment, the Brown gas stabilized flame methanol combustion system further includes a flow meter disposed in the methanol pipeline; and / or,

[0028] The Brownian gas-stabilized flame methanol combustion system also includes a delivery pipeline, a pressure sensor, a first controller, a frequency converter, a first opening valve, a second controller, and a temperature sensor. The methanol pipeline is connected to the burner via the delivery pipeline. The pressure sensor and the first opening valve are both located in the delivery pipeline. The methanol pump is electrically connected to the frequency converter. The frequency converter and the pressure sensor are both electrically connected to the first controller. The first controller is used to control the frequency converter to regulate the methanol pressure delivered by the methanol pump based on the pressure detected by the pressure sensor. The temperature sensor and the first opening valve are both electrically connected to the second controller. The second controller is configured to control the first opening valve to regulate the methanol flow rate delivered by the delivery pipeline based on the temperature detected by the temperature sensor.

[0029] In an optional embodiment, the Brown gas-stabilized methanol combustion system further includes a pressure regulating valve, which is disposed in the atomizing air duct; and / or,

[0030] The Brown gas stabilized flame methanol combustion system also includes a second opening valve, which is located in the combustion-supporting gas pipeline.

[0031] The beneficial effects of the Brown gas stabilized flame methanol combustion system provided in this embodiment of the invention include: the Brown gas stabilized flame methanol combustion system provided in this embodiment of the invention can be used to burn methanol. When using this system, Brown gas can be supplied through a Brown gas pipeline, and the Brown gas flame can be used as the ignition source for methanol combustion. Brown gas is a mixture of hydrogen and oxygen produced after water electrolysis. It is stable in combustion and has no greenhouse gas emissions. Using the Brown gas flame as the ignition source for methanol combustion can ensure the stability and completeness of methanol combustion, thereby improving the problem of incomplete combustion of methanol and reducing carbon emissions. The water vapor produced by the combustion of Brown gas and methanol can increase the radiation capacity of the combustion flue gas, thereby strengthening the radiative heat exchange between the flue gas and methanol and shortening the combustion time, so as to further achieve the effect of energy saving and carbon reduction. It does not require preheating and vaporizing of methanol, avoiding the problem of unstable heating and vaporization. It can also improve the problem of incomplete combustion caused by flameout during vaporization combustion and avoid the problem of toxic gas production during vaporization.

[0032] The combustion-supporting gas pipeline provides combustion-supporting gas to the burner, which can maintain air circulation inside the burner, improve combustion retention caused by unsuccessful ignition, and prevent the risk of deflagration during re-ignition, thus improving the safety of the Brown gas stabilized flame methanol combustion system. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the Brown gas stabilized flame methanol combustion system in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the burner in an embodiment of the present invention.

[0036] Icons: 010-Brown gas stabilized flame methanol combustion system; 1-Electrolysis water device; 2-First flame arrester; 3-First valve; 4-Water vapor separator; 6-Pressure reducing valve; 7-First pressure gauge; 8-First shut-off valve; 9-Pneumatic vent valve; 10-Leak detection switch; 11-Second shut-off valve; 13-First fine-tuning valve; 14-Second flame arrester; 16-Methanol storage tank; 17-Second valve; 18-First filter; 19-Sixth valve; 20-Third valve; 21-Methanol pump; 22-Second filter; 23-Flow meter; 24-Overflow / return valve; 25-Fifth valve; 26-Pressure sensor; 27-First controller; 28-Frequency converter; 29-Seventh valve ; 30-Second pressure gauge; 31-First opening valve; 32-Fourth shut-off valve; 33-Second fine-tuning valve; 34-First fan; 35-Pressure stabilizing valve; 36-Eighth valve; 37-Third pressure gauge; 38-Second fan; 39-Second opening valve; 40-Manual graduation valve; 51-Brown gas pipeline; 52-Methanol pipeline; 53-Oxidant combustion gas pipeline; 54-Atomizing air pipeline; 55-Nitrogen pipeline; 56-Burner; 57-Thermocouple; 58-Second controller; 59-Branch pipeline; 60-Fourth valve; 61-Third shut-off valve; 70-Outer shell; 71-Cavity; 72-Air outlet; 81-Brown gas pipeline; 82-Atomizing air pipeline; 83-Methanol pipeline. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0042] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0043] Please refer to Figure 1 This embodiment provides a Brown gas stabilized flame methanol combustion system 010, which includes a burner 56, a Brown gas pipeline 51, a methanol pipeline 52, a combustion-supporting gas pipeline 53, and an atomizing air pipeline 54. The Brown gas pipeline 51 is connected to the burner 56 and is used to supply Brown gas to the burner 56, and can form a Brown gas flame at the burner 56. The methanol pipeline 52 is connected to the burner 56 and is used to supply methanol toward the burner 56. The combustion-supporting gas pipeline 53 is connected to the burner 56 and is used to supply combustion-supporting gas to the burner 56. The atomizing air pipeline 54 is connected to the burner 56 and is used to supply atomizing air to the burner 56 so that the methanol supplied to the burner 56 is atomized, wherein the atomized methanol can use the Brown gas flame as an ignition source.

[0044] When using this system, Brown gas can be supplied through Brown gas pipeline 51, and the Brown gas flame can be used as the ignition source for methanol combustion. Brown gas is a mixture of hydrogen and oxygen produced after water electrolysis. It burns stably and has no greenhouse gas emissions. Using the Brown gas flame as the ignition source for methanol combustion can ensure the stability and completeness of methanol combustion, thereby improving the problem of incomplete combustion of methanol and reducing carbon emissions. The water vapor produced by the combustion of Brown gas and methanol can increase the radiative capacity of the combustion flue gas, thereby enhancing the radiative heat exchange between the flue gas and methanol and shortening the combustion time, so as to further achieve the effect of energy saving and carbon reduction. It is not necessary to preheat and vaporize methanol, avoiding the problem of unstable heating and vaporization. It can also improve the problem of incomplete combustion caused by flameout during vaporization combustion and avoid the problem of toxic gas production during vaporization.

[0045] The combustion-supporting gas pipeline 53 provides combustion-supporting gas to the burner 56, which can maintain air circulation inside the burner 56, improve the combustion retention caused by unsuccessful ignition, and prevent the risk of deflagration when igniting again, thus improving the safety of the Brown gas stabilized flame methanol combustion system 010.

[0046] The principle of atomizing methanol involves spraying methanol out with high-pressure air to form a mist.

[0047] The Brown gas stabilized methanol combustion system 010 of this embodiment further includes an electrolysis water device 1, a first valve 3, a water vapor separator 4, a first pressure gauge 7, a first shut-off valve 8, a second shut-off valve 11, and a first fine-tuning valve 13. The electrolysis water device 1 is connected to the end of the Brown gas pipeline 51 away from the burner 56 and is used to supply Brown gas to the Brown gas pipeline 51. That is, the electrolysis water device 1 is used to electrolyze water to form hydrogen and oxygen (i.e., Brown gas) and enables hydrogen and oxygen to be transported to the burner 56 through the Brown gas pipeline 51. Along the direction in which Brown gas is transported from the Brown gas pipeline 51 to the burner 56, the water vapor separator 4, the first pressure gauge 7, the first shut-off valve 8, the second shut-off valve 11, and the first fine-tuning valve 13 are sequentially arranged in the Brown gas pipeline 51. The gas separation device can separate the water vapor entering the Brown gas pipeline 51 to reduce the amount of water vapor entering the Brown gas pipeline 51. The moisture in the Brown gas transported in the middle is removed to ensure the complete combustion of the Brown gas; both the Brown gas pipeline 51 upstream of the water vapor separator 4 and the Brown gas pipeline 51 downstream of the water vapor separator 4 are equipped with a first valve 3. The first valve 3 and the first fine-tuning valve 13 can be used to regulate the Brown gas flow rate of the Brown gas pipeline 51; the second shut-off valve 11 is configured to control the opening and closing of the Brown gas pipeline 51, that is, the second shut-off valve 11 can act as the main switch of the Brown gas pipeline 51 to control the opening or closing of the Brown gas pipeline 51; the first shut-off valve 8 is configured to close the Brown gas pipeline 51 when the first pressure gauge 7 detects that the pressure of the Brown gas pipeline 51 is greater than the first preset pressure. The cooperation of the first shut-off valve 8 and the first pressure gauge 7 can serve as a safety protection device to improve the problem of damage to the pipeline downstream of the first shut-off valve 8 and the burner 56 under high pressure.

[0048] In other embodiments, the first valve 3 may be provided only in the Brown gas line 51 upstream of the water vapor separator 4 or in the Brown gas line 51 downstream of the water vapor separator 4. Alternatively, in other embodiments, the first shut-off valve 8 may be configured to close the Brown gas line 51 when the first pressure gauge 7 detects that the pressure in the Brown gas line 51 is equal to a first preset pressure.

[0049] Optionally, the Brown gas stabilized methanol combustion system 010 also includes a first flame arrester 2, which is disposed in the Brown gas pipeline 51 and located between the water electrolysis device 1 and the water vapor separation device 4. The first flame arrester 2 includes, but is not limited to, a wet flame arrester. The installation of the first flame arrester 2 can improve the safety of the system during use.

[0050] Optionally, the Brown gas stabilized methanol combustion system 010 also includes a second flame arrester 14, which is located in the Brown gas pipeline 51 and downstream of the first fine-tuning valve 13. The second flame arrester 14 includes, but is not limited to, a metal flame arrester. The installation of the second flame arrester 14 can improve the safety of the system during use.

[0051] Optionally, the Brown gas stabilized methanol combustion system 010 also includes a pressure reducing valve 6, which is located in the Brown gas pipeline 51 and between the water vapor separator 4 and the first pressure gauge 7; the pressure reducing valve 6 can maintain the pressure stability of the Brown gas pipeline 51.

[0052] Optionally, the Brown gas stabilized flame methanol combustion system 010 also includes a pneumatic vent valve 9, which is located in the Brown gas pipeline 51 and between the first shut-off valve 8 and the second shut-off valve 11; the pneumatic vent valve 9 can play a role in safe venting and system protection.

[0053] Optionally, the Brown gas stabilized flame methanol combustion system 010 also includes a leak detection switch 10, which is installed in the Brown gas pipeline 51 and located between the first shut-off valve 8 and the second shut-off valve 11; the leak detection switch 10 can reliably monitor whether there is a leak in the Brown gas pipeline 51.

[0054] The Brownian gas stabilized flame methanol combustion system 010 of this embodiment also includes a methanol storage tank 16. The end of the methanol pipeline 52 away from the burner 56 is connected to the methanol storage tank 16. The methanol storage tank 16 is used to store methanol and supply methanol to the methanol pipeline 52.

[0055] Optionally, the Brown gas stabilized flame methanol combustion system 010 also includes a return line, the inlet and outlet of which are connected to the methanol line 52, so that methanol overflowing from the methanol line 52 to the return line flows back to the methanol line 52.

[0056] Furthermore, a fifth valve 25, an overflow return valve 24, and a sixth valve 19 are provided on the return pipeline, and the fifth valve 25, the overflow return valve 24, and the sixth valve 19 are distributed sequentially from the inlet end to the outlet end of the return pipeline.

[0057] In this embodiment, the Brown gas stabilized flame methanol combustion system 010 includes two methanol pipelines 52, which are connected in parallel with the methanol storage tank 16. The methanol storage tank 16 is selectively connected to the burner 56 through one of the two methanol pipelines 52. With this configuration, when using the system to burn methanol, one methanol pipeline 52 can be used to transport methanol, while the other methanol pipeline 52 can be used as a backup. This improves the problem that when there is only one methanol pipeline 52, the system cannot be maintained in time when a failure occurs, resulting in system unavailability and reduced efficiency.

[0058] Of course, in other embodiments, the number of methanol pipelines 52 in the Brown gas stabilized flame methanol combustion system 010 can also be one, three, etc., and no specific limitation is made here.

[0059] Furthermore, the Brownian gas stabilized flame methanol combustion system 010 also includes a third valve 20, a methanol pump 21, and a second filter 22. Along the direction of methanol delivery from the methanol pipeline 52 to the burner 56, the methanol pump 21 and the second filter 22 are sequentially installed in the methanol pipeline 52, and the methanol pipeline 52 upstream of the methanol pump 21 and downstream of the second filter 22 are both equipped with the third valve 20. The methanol pump 21 provides the power for methanol delivery within the methanol pipeline 52 and allows for the regulation of methanol flow rate and delivery pressure. The second filter 22 reduces impurities within the methanol pipeline 52, mitigating blockage issues. The third valve 20 regulates the on / off state of the methanol pipeline 52 and its flow rate, while also providing safety protection.

[0060] Of course, in other embodiments, a third valve 20 may be provided on either the methanol line 52 upstream of the methanol pump 21 or the methanol line 52 downstream of the second filter 22.

[0061] It should be noted that both methanol lines 52 are connected to the outlet end of the reflux line; thus, it can be ensured that when either of the two methanol lines 52 is used, methanol can be refluxed through the reflux line.

[0062] Optionally, the Brown gas stabilized flame methanol combustion system 010 also includes a flow meter 23, which is installed in the methanol pipeline 52. The flow meter 23 is installed to detect the methanol flow rate in real time.

[0063] Furthermore, both the upstream methanol pipeline 52 and the downstream methanol pipeline 52 of the flow meter 23 are equipped with a third valve 20. Of course, in other embodiments, neither the upstream methanol pipeline 52 nor the downstream methanol pipeline 52 of the flow meter 23 is equipped with a third valve 20, or one of the upstream methanol pipeline 52 and the downstream methanol pipeline 52 of the flow meter 23 is equipped with a third valve 20.

[0064] The components installed on the two methanol pipelines 52 in this embodiment are not completely the same. The Brown gas stabilized flame methanol combustion system 010 also includes a branch pipeline 59. The two methanol pipelines 52 are also connected through the branch pipeline 59. One of the methanol pipelines 52 is equipped with a flow meter 23, while the other methanol pipeline 52 is not equipped with a flow meter 23. The connection position between the branch pipeline 59 and the methanol pipeline 52 equipped with the flow meter 23 is located upstream of the flow meter 23. When the other methanol pipeline 52 is transporting methanol, it can use the branch pipeline 59 to make the methanol flow through the flow meter 23 for flow measurement before it is transported to the burner 56. In this way, the investment in the flow meter 23 can be reduced, and the cost can be reduced.

[0065] Optionally, two third valves 20 are provided between the second filter 22 and the flow meter 23 of the methanol pipeline 52, and the connection point between the branch pipeline 59 and the methanol pipeline 52 with the flow meter 23 is located between the two third valves 20.

[0066] Furthermore, the methanol pipeline 52 without flow meter 23 is also equipped with a fourth valve 60. The fourth valve 60 is located downstream of the connection between the branch pipeline 59 and the methanol pipeline 52 without flow meter 23. That is, the connection between the branch pipeline 59 and the methanol pipeline 52 without flow meter 23 is located between the third valve 20 and the fourth valve 60 located downstream of the second filter 22 in the corresponding methanol pipeline 52. In this way, when the methanol pipeline 52 with flow meter 23 malfunctions, the fourth valve 60 can be opened so that the methanol pipeline 52 without flow meter 23 can directly deliver methanol to the burner 56 without passing through flow meter 23.

[0067] The Brownian gas stabilized flame methanol combustion system 010 of this embodiment also includes a delivery 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 detection device. The methanol pipeline 52 is connected to the burner 56 through the delivery pipeline, and the inlet end of the return pipeline is connected to the methanol pipeline 52 through the delivery pipeline. The pressure sensor 26 and the first opening valve 31 are both located in the delivery pipeline, and the inlet end of the return pipeline is located upstream of the pressure sensor 26. The methanol pump 21 is electrically connected to the frequency converter 28, and the frequency converter 28 and the pressure sensor 26 are both electrically connected to the first controller 27. The first controller 27 is used to control the frequency converter 28 to regulate the methanol pressure delivered by the methanol pump 21 according to the pressure detected by the pressure sensor 26. The temperature detection device and the first opening valve 31 are both electrically connected to the second controller 58. The second controller 58 is configured to control the first opening valve 31 to regulate the methanol flow rate delivered by the delivery pipeline according to the temperature detected by the temperature detection device. The temperature detection device includes, but is not limited to, a thermocouple 57 and a temperature sensor.

[0068] This configuration allows for more flexible control of methanol flow rate and delivery pressure as needed, ensuring methanol pressure stability and thus improving methanol combustion stability. For example, when pressure sensor 26 detects a decrease in pressure in the delivery pipeline, the first controller 27 receives a first detection signal from pressure sensor 26 and controls frequency converter 28 to adjust methanol pump 21 to increase methanol delivery pressure. Conversely, when pressure sensor 26 detects an increase in pressure in the delivery pipeline, the first controller 27 receives a second detection signal from pressure sensor 26 and controls frequency converter 28 to adjust methanol pump 21 to decrease methanol delivery pressure. Furthermore, it ensures that the methanol flow rate is within acceptable limits. The system is adapted to the required temperature. For example, when the Brown gas stabilized flame methanol combustion system 010 is used to calcine ceramic products in a kiln, if the temperature sensor detects that the temperature is lower than the required calcination temperature, the second controller 58 receives the first signal sent by the temperature sensor and can then control the first opening valve 31 to increase the methanol flow rate in the delivery pipeline to enhance combustion and achieve heating. Similarly, if the temperature sensor detects that the temperature is higher than the required calcination temperature, the second controller 58 receives the second signal from the temperature sensor and can then control the first opening valve 31 to decrease the methanol flow rate in the delivery pipeline to reduce heat input and achieve cooling.

[0069] Optionally, the Brown gas stabilized flame methanol combustion system 010 also includes a seventh valve 29, a second pressure gauge 30, a fourth shut-off valve 32, and a second fine-tuning valve 33 installed in the delivery pipeline. The seventh valve 29 and the second pressure gauge 30 are both located between the pressure sensor 26 and the first opening valve 31, with the seventh valve 29 upstream of the second pressure gauge 30. The fourth shut-off valve 32 and the second fine-tuning valve 33 are both located downstream of the first opening valve 31, with the fourth shut-off valve 32 upstream of the second fine-tuning valve 33. The fourth shut-off valve 32, as one of the main opening valves of the delivery pipeline, can quickly shut off the delivery pipeline when the methanol flame is extinguished, preventing dangerous situations caused by fuel delivery even after the flame is extinguished. The seventh valve 29 and the second fine-tuning valve 33 can be used to regulate the flow rate of methanol delivery. The second pressure gauge 30 can provide real-time feedback on the pressure of the delivery pipeline, allowing workers to promptly monitor the pressure and reduce the occurrence of dangerous situations.

[0070] Optionally, the Brownian gas stabilized flame methanol combustion system 010 also includes a second valve 17 and a first filter 18. The methanol storage tank 16 is connected to an output pipe, and the methanol pipeline 52 is connected to the methanol storage tank 16 via the output pipe. Both the second valve 17 and the first filter 18 are located on the output pipe, with the connection point between the methanol pipeline 52 and the output pipe downstream of the first filter 18. The second valve 17 can serve as one of the main switches for methanol output from the methanol storage tank 16, while the first filter 18 can reduce the transport of solid impurities in the methanol pipeline 52, thereby improving the problem of blockage in the methanol pipeline 52.

[0071] The Brown gas stabilized flame methanol combustion system 010 of this embodiment also includes a pressure regulating valve 35, which is disposed in the atomizing air duct 54. The pressure regulating valve 35 is used to maintain a stable pressure in the atomizing air duct 54 to ensure good methanol atomization effect.

[0072] Furthermore, the Brownian gas stabilized flame methanol combustion system 010 also includes a first blower 34 (e.g., a Roots blower), an eighth valve 36, and a third pressure gauge 37. The first blower 34 is connected to the input end of the atomizing air duct 54, and the eighth valve 36 and the third pressure gauge 37 are sequentially located downstream of the pressure regulating valve 35. The eighth valve 36 can be used to regulate the opening and closing of the atomizing air duct 54, and the third pressure gauge 37 can provide real-time feedback on the pressure status of the atomizing air duct 54.

[0073] The Brownian gas stabilized flame methanol combustion system 010 of this embodiment also includes a second fan 38 and a second opening valve 39. The second fan 38 is located at the input end of the combustion-supporting gas pipeline 53, and the second opening valve 39 is located in the combustion-supporting gas pipeline 53. The second opening valve 39 can regulate the amount of combustion-supporting gas delivered by the combustion-supporting gas pipeline 53 to ensure complete combustion of methanol.

[0074] Optionally, the gas-supporting pipeline 53 is also equipped with a manual scale valve 40, which is located upstream or downstream of the second opening valve 39. When using the system, the opening of the manual scale valve 40 can be manually adjusted as needed to make the flow of the gas-supporting gas more controllable.

[0075] Optionally, the Brown gas stabilized methanol combustion system 010 also includes a nitrogen line 55, which is connected to the Brown gas line 51 and used to supply nitrogen to the Brown gas line 51 and the burner 56. In this way, when using this system to burn methanol, nitrogen can be first introduced into the Brown gas line 51 through the nitrogen line 55 for purging, and purging can be stopped after the residual gas in the Brown gas line 51 is discharged, ensuring the cleanliness and stability of subsequent combustion.

[0076] Furthermore, a third shut-off valve 61 is provided on the nitrogen pipeline 55 to control the opening and closing of the nitrogen pipeline 55.

[0077] Optionally, the nitrogen line 55 can be connected to the Brown gas line 51 upstream of the first fine-tuning valve 13 and downstream of the second shut-off valve 11. This ensures that the Brown gas line 51 is adequately purged with nitrogen.

[0078] Optionally, 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 are all, but not limited to, electromagnetic shut-off valves and ball valves; 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 are all, but not limited to, ball valves and electromagnetic valves; the first fine-tuning valve 13 and the second fine-tuning valve 33 are all, but not limited to, manual fine-tuning valves and electric fine-tuning valves; the first opening valve 31 and the second opening valve 39 are all, but not limited to, electric actuators, electromagnetic valves, and electric valves.

[0079] Alternatively, please refer to Figure 2 The burner 56 includes a housing 70, a Brown gas pipe 81, an atomizing air pipe 82, and a methanol pipe 83. The housing 70 has a cavity 71, which is connected to the combustion-supporting gas pipe 53 for supplying combustion-supporting gas. The housing 70 has a first end and a second end distributed opposite to each other. The second end is provided with an air outlet 72 connected to the cavity 71, from which combustion-supporting gas can be blown out. The two ends of the Brown gas pipe 81 are inserted into the first end and the second end of the housing 70, and the end of the Brown gas pipe 81 inserted into the first end of the housing 70 is connected to the Brown gas pipe 51, so that Brown gas is output from the end of the Brown gas pipe 81 inserted into the second end of the housing 70, and the Brown gas can be ignited at the second end of the housing 70 to form Brown gas. Flame; the two ends of the atomizing air duct 82 are inserted into the first and second ends of the outer casing 70, and the end of the atomizing air duct 82 inserted into the first end of the outer casing 70 is connected to the atomizing air pipeline 54; one end of the methanol pipeline 83 is inserted into the first end of the outer casing 70 and connected to the delivery pipeline, and the other end of the methanol pipeline 83 is connected to the atomizing air duct 82, and the connection between the methanol pipeline 83 and the atomizing air duct 82 is close to the second end of the outer casing 70. When the methanol delivered by the methanol pipeline 83 enters the atomizing air duct 82, the methanol can be atomized by the atomizing air in the atomizing air duct 82, and the atomized methanol can be output from the end of the atomizing air duct 82 inserted into the second end of the outer casing 70 and ignited using the Brown gas flame as an ignition source.

[0080] This embodiment also provides a Brownian gas stabilized flame methanol combustion method, wherein methanol is burned in a kiln using the aforementioned Brownian gas stabilized flame methanol combustion system 010; the Brownian gas stabilized flame methanol combustion method includes:

[0081] Purge the Brown gas line 51 with nitrogen to remove any residual gas, then stop purging.

[0082] The combustion gas is delivered to the burner 56 via the combustion gas pipeline 53, and the combustion gas is kept flowing within the burner 56.

[0083] Brown gas is delivered to burner 56 via Brown gas pipeline 51 and ignited to form a Brown gas flame.

[0084] Atomizing air is delivered to burner 56 via atomizing air duct 54, and methanol is delivered to burner 56 via methanol duct 52, so that the methanol entering burner 56 is atomized by atomizing air.

[0085] Brown gas flame is used as an ignition source to ignite atomized methanol.

[0086] It should be noted that when methanol is burned, the Brown gas flame serves as a stable ignition source. Throughout the entire methanol combustion process, the Brown gas needs to be kept burning to maintain a continuous supply of ignition.

[0087] Optionally, the Brown gas stabilized-flame methanol combustion method further includes: when the temperature of methanol combustion is lower than a first preset value, increasing the flow rate supplied to the burner 56 to raise the temperature of the furnace chamber; when the temperature of methanol combustion is higher than a second preset value, decreasing the flow rate supplied to the burner 56 to lower the temperature of the furnace chamber. For example, when the Brown gas stabilized-flame methanol combustion system 010 is used to calcine ceramic products in a furnace, if the temperature detector detects that the temperature is lower than the first preset value, the second controller 58 receives a first signal sent by the temperature detector and can control the first opening valve 31 to increase the flow rate of methanol supplied through the delivery pipeline to enhance combustion and achieve heating; if the temperature detector detects that the temperature is higher than the second preset value, the second controller 58 receives a second signal from the temperature detector and can control the first opening valve 31 to decrease the flow rate of methanol supplied through the delivery pipeline to reduce heat input and achieve cooling.

[0088] Optionally, the first preset value is less than the second preset value; in other embodiments, the first preset value may also be equal to the second preset value, which is not specifically limited here.

[0089] Optionally, when the methanol flow rate increases, the pressure and flow rate of the atomizing air can be increased to ensure that a large amount of methanol can be reliably atomized; when the methanol flow rate decreases, the pressure and flow rate of the atomizing air can be decreased to improve the problem of methanol atomization and output being too fast.

[0090] Optionally, the size of the combustion-supporting gas can be adjusted during methanol combustion to ensure complete methanol combustion; for example, when the amount of atomized methanol increases, the combustion-supporting gas can be increased, and when the amount of atomized methanol decreases, the combustion-supporting gas can be decreased.

[0091] In summary, the Brownian gas stabilized flame methanol combustion system 010 and method of this invention can ensure efficient combustion of methanol and complete combustion of methanol, improve the problem of incomplete combustion of methanol, and reduce carbon emissions.

[0092] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A Brownian gas stabilized flame methanol combustion system, characterized in that, include: Burner (56); Brown gas line (51), which is connected to the burner (56) for supplying brown gas to the burner (56) and forming a brown gas flame at the burner (56); A methanol pipeline (52) is connected to the burner (56) for supplying methanol toward the burner (56); A combustion-supporting pipeline (53) is connected to the burner (56) and is used to supply combustion-supporting gas to the burner (56); as well as, Atomizing air duct (54) is connected to the burner (56) for supplying atomizing air to the burner (56) to atomize the methanol supplied to the burner (56), wherein the atomized methanol can be ignited by the Brown gas flame.

2. The Brown gas stabilized flame methanol combustion system according to claim 1, characterized in that, The Brown gas stabilized methanol combustion system also includes a first pressure gauge (7) and a first shut-off valve (8). The first pressure gauge (7) and the first shut-off valve (8) are sequentially installed in the Brown gas pipeline (51) along the direction in which Brown gas is transported to the burner (56) in the Brown gas pipeline (51). The first shut-off valve (8) is 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 greater than or equal to a first preset pressure.

3. The Brown gas stabilized flame methanol combustion system according to claim 2, characterized in that, The Brown gas stabilized methanol combustion system further includes a water electrolysis device (1), which is connected to the end of the Brown gas pipeline (51) away from the burner (56) to supply Brown gas to the Brown gas pipeline (51); and / or, The Brown gas stabilized methanol combustion system further includes a first valve (3), a water vapor separator (4), a second shut-off valve (11), and a first fine-tuning valve (13); along the direction in which Brown gas is transported from the Brown gas pipeline (51) to the burner (56), the water vapor separator (4), the first pressure gauge (7), the first shut-off valve (8), the second shut-off valve (11), and the first fine-tuning valve (13) are sequentially arranged in the Brown gas pipeline (51); at least one of the Brown gas pipeline (51) upstream of the water vapor separator (4) and the Brown gas pipeline (51) downstream of the water vapor separator (4) is provided with the first valve (3); wherein, the second shut-off valve (11) is configured to control the opening and closing of the Brown gas pipeline (51).

4. The Brown gas stabilized flame methanol combustion system according to claim 3, characterized in that, The Brown gas stabilized methanol combustion system further includes a first flame arrester (2), which is disposed in the Brown gas pipeline (51) and located between the water electrolysis device (1) and the water vapor separator (4); and / or, The Brown gas stabilized methanol combustion system further includes a second flame arrester (14), which is disposed in the Brown gas pipeline (51) and located downstream of the first fine-tuning valve (13); and / or, The Brown gas stabilized methanol combustion system further includes a pressure reducing valve (6), which is disposed in the Brown gas pipeline (51) and located between the water vapor separator (4) and the first pressure gauge (7); and / or, The Brown gas stabilized methanol combustion system further includes a pneumatic vent valve (9), which is disposed in the Brown gas pipeline (51) and located between the first shut-off valve (8) and the second shut-off valve (11); and / or, The Brown gas stabilized flame methanol combustion system also includes a leak detection switch (10), which is installed in the Brown gas pipeline (51) and located between the first shut-off valve (8) and the second shut-off valve (11).

5. The Brown gas stabilized flame methanol combustion system according to claim 1, characterized in that, The Brown gas stabilized flame methanol combustion system also includes a nitrogen pipeline (55), which is connected to the Brown gas pipeline (51) and is used to supply nitrogen to the Brown gas pipeline (51) and the burner (56).

6. The Brownian gas-stabilized flame methanol combustion system according to any one of claims 1-5, characterized in that, The Brownian gas stabilized flame methanol combustion system further includes a methanol storage tank (16), and one end of the methanol pipeline (52) away from the burner (56) is connected to the methanol storage tank (16); and / or, The Brown gas stabilized flame methanol combustion system also includes a return pipeline, the inlet and outlet of which are connected to the methanol pipeline (52) so that methanol overflowing from the methanol pipeline (52) to the return pipeline flows back to the methanol pipeline (52).

7. The Brown gas stabilized flame methanol combustion system according to claim 6, characterized in that, The Brownian gas stabilized flame methanol combustion system includes two methanol pipelines (52), which are connected in parallel to the methanol storage tank (16), and the methanol storage tank (16) is optionally connected to the burner (56) through one of the two methanol pipelines (52); and / or, The Brown gas stabilized flame methanol combustion system also includes a second valve (17) and a first filter (18). The methanol storage tank (16) is connected to an output pipe. The methanol pipeline (52) is connected to the methanol storage tank (16) through the output pipe. The second valve (17) and the first filter (18) are both located on the output pipe.

8. The Brownian gas stabilized flame methanol combustion system according to any one of claims 1-5, characterized in that, The Brownian gas stabilized flame methanol combustion system also includes a third valve (20), a methanol pump (21), and a second filter (22). Along the direction in which methanol is transported from the methanol pipeline (52) to the burner (56), the methanol pump (21) and the second filter (22) are sequentially arranged in the methanol pipeline (52), and at least one of the methanol pipeline (52) upstream of the methanol pump (21) and the methanol pipeline (52) downstream of the second filter (22) is provided with the third valve (20).

9. The Brownian gas stabilized flame methanol combustion system according to claim 8, characterized in that, The Brown gas stabilized flame methanol combustion system further includes a flow meter (23), which is installed in the methanol pipeline (52); and / or, The Brownian gas stabilized flame methanol combustion system also includes a delivery 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 detection device. The methanol pipeline (52) is connected to the burner (56) through the delivery pipeline. The pressure sensor (26) and the first opening valve (31) are both located in the delivery pipeline. The methanol pump (21) is electrically connected to the frequency converter (28). The frequency converter (28) and the pressure sensor (26) are both electrically connected to the first controller (27). The first controller (27) is used to control the frequency converter (28) to regulate the methanol pressure delivered by the methanol pump (21) according to the pressure detected by the pressure sensor (26). The temperature detection device and the first opening valve (31) are both electrically connected to the second controller (58). The second controller (58) is configured to control the first opening valve (31) to regulate the methanol flow rate delivered by the delivery pipeline according to the temperature detected by the temperature detection device.

10. The Brownian gas stabilized flame methanol combustion system according to claim 1, characterized in that, The Brown gas stabilized flame methanol combustion system further includes a pressure regulating valve (35), which is disposed in the atomizing air duct (54); and / or, The Brown gas stabilized flame methanol combustion system also includes a second opening valve (39), which is located in the combustion-supporting pipeline (53).

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