Integrated small dispersion heat accumulating burner

Abstract

This utility model relates to the field of combustion device technology and discloses an integrated small-scale dispersion regenerative burner, including a furnace body. The outer wall of the furnace body is equipped with a dispersion air supply system, a flue gas pipe, burner bricks, and a gas supply assembly. A third electromagnetic flow valve is installed between the gas supply assembly and the burner bricks. A combustion-supporting air chamber is fixedly installed on the other side of the burner bricks. A first electromagnetic flow valve is installed on one side of the heat storage tank. A first reversing valve is fixedly installed at the output end of the dispersion air supply system. This utility model, through the burner bricks, pressure sensor, combustion-supporting air chamber, first electromagnetic flow valve, second electromagnetic flow valve, first reversing valve, second reversing valve, and third electromagnetic flow valve, solves the problems of traditional burners easily experiencing lean combustion and flameout under low-load conditions, leading to combustion interruption, or rich combustion and carbon buildup due to an imbalance in the fuel-air mixture ratio, resulting in low combustion efficiency.

Description

Technical Field

[0001] This utility model relates to the field of combustion device technology, and in particular to an integrated small-scale diffuse regenerative burner. Background Technology

[0002] Premixed regenerative combustion technology is widely used in industrial furnaces in my country. However, in recent years, dispersed regenerative combustion technology has been rapidly promoted and applied due to its better energy-saving effect and lower pollutant emissions.

[0003] Existing integrated small-scale diffused regenerative burners often struggle to adapt to equipment load fluctuations during operation. Under low-load conditions, traditional burners are prone to lean combustion and flameout, leading to combustion interruption; or, due to an imbalance in the fuel-air mixture ratio, they may experience rich combustion and carbon buildup, which not only reduces combustion efficiency but also increases pollutant emissions. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an integrated small-scale diffused regenerative burner, which aims to solve the problems of traditional burners easily experiencing lean combustion and flameout when operating under low load conditions, leading to combustion interruption, or experiencing rich combustion and carbon buildup due to an imbalance in the fuel-air mixing ratio, resulting in low combustion efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated small-scale dispersion regenerative burner, comprising a furnace body, the outer wall of which is provided with a dispersion air supply system, a flue gas pipe, burner bricks, and a gas supply assembly. The output end of the gas supply assembly is fixedly disposed on one side of the burner bricks. A third electromagnetic flow valve is disposed between the gas supply assembly and the burner bricks. A combustion chamber is fixedly disposed on the other side of the burner bricks. A pressure sensor and a second reversing valve are fixedly disposed on one side of the combustion chamber. A first heat storage box and a second heat storage box are fixedly disposed on the outer wall of the second reversing valve. A first electromagnetic flow valve is disposed on the first heat storage box, and a second electromagnetic flow valve is disposed on the second heat storage box. The output end of the dispersion air supply system is fixedly disposed with the first reversing valve. One side of both the first and second heat storage boxes is disposed on the first reversing valve. One end of the flue gas pipe is fixedly disposed on the outer wall of the second reversing valve.

[0006] Preferably, the combustion chamber is provided with a combustion air duct, and multiple flow-dividing adjustment plates are slidably connected inside the combustion air duct. Multiple through holes are opened on the flow-dividing adjustment plates. A driving mechanism is provided on the outer wall of the combustion air duct, and the output end of the driving mechanism is fixedly mounted on the flow-dividing adjustment plate.

[0007] Preferably, the inner wall of the combustion-supporting air duct is evenly provided with multiple sliding grooves, and the outer wall of the diversion adjustment plate is evenly provided with multiple sliders. The sliders on the diversion adjustment plate are slidably connected to the inside of the sliding grooves, and one of the sliders on the diversion adjustment plate passes through the outer wall of the combustion-supporting air duct and is fixedly mounted on the output end of the drive mechanism.

[0008] Preferably, a second connecting pipe is provided on the other side of the second heat storage box, one end of the second connecting pipe is fixedly installed on the outer wall of the second reversing valve, a second temperature sensor is provided inside the second heat storage box, and the second electromagnetic flow valve is installed on the outer wall of the second connecting pipe.

[0009] Preferably, a connecting pipe is fixedly installed on the other side of the heat storage box, one end of the connecting pipe is fixedly installed on the outer wall of the second reversing valve, a first temperature sensor is installed inside the heat storage box, and the first electromagnetic flow valve is installed on the connecting pipe.

[0010] Preferably, an ignition device is provided on the upper side of the furnace body.

[0011] Preferably, an exhaust pipe is fixedly provided on the outer wall of the first reversing valve.

[0012] Preferably, the outer wall of the furnace body is provided with a controller, which is electrically connected to the first electromagnetic flow valve, the first temperature sensor, the ignition device, the diffused air supply system, the first reversing valve, the second temperature sensor, the second electromagnetic flow valve, the second reversing valve, the pressure sensor, the third electromagnetic flow valve, the gas supply component, and the drive mechanism.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the furnace body provides support for the burner bricks, and the pressure sensor detects the pressure of the heating air input into the combustion chamber in real time. This allows the first or second electromagnetic flow valve to adjust the flow rate of the heating air. Through the cooperation of the first and second reversing valves, the heat storage box one and the heat storage box two can alternately store and heat heat. Air is supplied through the diffused air supply system, and gas is supplied through the gas supply component. Through the cooperation of the flue gas pipe and the third electromagnetic flow valve, the problem of traditional burners easily experiencing lean combustion and flameout when operating under low load conditions, leading to combustion interruption, or experiencing rich combustion and carbon buildup due to an imbalance in the fuel-air mixing ratio, resulting in low combustion efficiency, is solved.

[0015] 2. In this utility model, the combustion chamber provides support for the combustion air duct, and the horizontal sliding connection between the slide groove and the slider on the flow distribution plate is achieved through the through hole opened on the flow distribution plate and the drive mechanism, thereby realizing the function of adjusting the heating air velocity and flow rate of the combustion chamber. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the integrated small-scale diffused regenerative burner proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the integrated small-scale diffused regenerative burner proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the combustion air chamber of the integrated small-scale diffused regenerative burner proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the reversing valve of the integrated small-scale diffused regenerative burner proposed in this utility model.

[0020] Legend:

[0021] 1. Furnace body; 2. Connecting pipe one; 3. First electromagnetic flow valve; 4. First temperature sensor; 5. Ignition device; 6. Heat storage box one; 7. Dispersion air supply system; 8. Flue gas pipe; 9. First reversing valve; 10. Exhaust pipe; 11. Heat storage box two; 12. Second temperature sensor; 13. Second electromagnetic flow valve; 14. Connecting pipe two; 15. Second reversing valve; 16. Pressure sensor; 17. Combustion chamber; 18. Burner brick; 19. Third electromagnetic flow valve; 20. Gas supply assembly; 21. Controller; 22. Slide rail; 23. Combustion air duct; 24. Drive mechanism; 25. Diversion adjustment plate. Detailed Implementation

[0022] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 and Figure 4This utility model provides an embodiment of an integrated small-scale diffused regenerative burner, comprising a furnace body 1. The outer wall of the furnace body 1 is provided with a diffused air supply system 7, a flue gas pipe 8, a burner brick 18, and a gas supply component 20. The output end of the gas supply component 20 is fixedly disposed on one side of the burner brick 18. A third electromagnetic flow valve 19 is disposed between the gas supply component 20 and the burner brick 18. A combustion chamber 17 is fixedly disposed on the other side of the burner brick 18. A pressure sensor 16 and a second reversing valve 15 are fixedly disposed on one side of the combustion chamber 17. A first heat storage box 6 and a second heat storage box 11 are fixedly disposed on the outer wall of the second reversing valve 15. A first electromagnetic flow valve 3 is disposed on the first heat storage box 6, and a second electromagnetic flow valve 13 is disposed on the second heat storage box 11. A first reversing valve 9 is fixedly disposed at the output end of the diffused air supply system 7. One side of the first heat storage box 6 and the second heat storage box 11 are both disposed on the first reversing valve 9. One end of the flue gas pipe 8 is fixedly disposed on the outer wall of the second reversing valve 15.

[0024] In this embodiment, Figure 1 The direction is front, back, left, and right. The diffused air supply system 7 can use a blower to supply air; the gas supply component 20 is used to supply fuel to the burner; the first reversing valve 9 and the second reversing valve 15 can use electromagnetic four-way reversing valves; the heat storage box 1 6 and the heat storage box 2 11 are equipped with heat storage bodies for heat storage; the burner brick 18 is used for the full mixing and injection of gas and combustion-supporting gas; all of the above are existing technologies.

[0025] Specifically, the gas supply component 20 is connected to the burner brick 18, the heat storage box 1 6 and the heat storage box 2 11 are connected to the first reversing valve 9, and the combustion chamber 17 is connected to the second reversing valve 15 through pipelines. The furnace body 1 provides support for the diffused air supply system 7, the flue gas pipe 8, the burner brick 18 and the gas supply component 20. The gas supply component 20 supplies gas to the burner brick 18, and the flow rate of the gas supplied to the burner brick 18 is regulated by the third electromagnetic flow valve 19, thereby realizing the supply and regulation of gas.

[0026] By adjusting the first reversing valve 9, the heat storage box 16 can be connected to the diffused air supply system 7 or the diffused air supply system 7 can be connected to the heat storage box 21. Similarly, by adjusting the second reversing valve 15, the heat storage box 16 can be connected to the combustion chamber 17, the heat storage box 21 can be connected to the flue gas pipe 8, or the heat storage box 16 can be connected to the flue gas pipe 8 and the heat storage box 21 can be connected to the burner brick 18.

[0027] When the burner is running, taking the connection between the diffused air supply system 7 and the heat storage box 6, and the connection between the heat storage box 6 and the combustion chamber 17 as an example, the heat storage box 6 first stores heat. Then, through the adjustment of the second reversing valve 15, the heat storage box 6 and the combustion chamber 17 are connected. At this time, the flue gas in the furnace body 1 enters the heat storage box 11 through the flue gas pipe 8 and the second reversing valve 15, realizing heat storage in the heat storage box 11. Then, the flue gas is discharged through the first reversing valve 9. Simultaneously, the diffused air supply system 7 draws external air into the heat storage box 6 for heating, and the pressure sensor 1... The detection of the heating air pressure entering the combustion chamber 17 by the 6 pairs of valves enables the first electromagnetic flow valve 3 to regulate the output flow of the heating air in the heat storage box 6. The heated air enters the combustion chamber 17 for further precise regulation, and then the air is delivered to the burner brick 18 to mix with the gas, so that the gas and air are in a certain appropriate ratio. This solves the problem that traditional burners are prone to lean combustion and flameout when operating under low load conditions, resulting in combustion interruption, or that rich combustion and carbon buildup due to an imbalance in the fuel-air mixing ratio, resulting in low combustion efficiency.

[0028] Reference Figure 1 and Figure 3 The combustion chamber 17 is equipped with a combustion air duct 23. Multiple flow adjustment plates 25 are slidably connected inside the combustion air duct 23. Multiple through holes are opened on the flow adjustment plates 25. The outer wall of the combustion air duct 23 is equipped with a drive mechanism 24. The output end of the drive mechanism 24 is fixedly installed on the flow adjustment plate 25.

[0029] Specifically, the drive mechanism 24 includes a servo motor and a lead screw fixedly mounted at the output end of the servo motor. Both the servo motor and the lead screw are mounted on the outer wall of the combustion air duct 23. The output end of the lead screw passes through the combustion air duct 23 and is fixedly connected to the flow diversion adjustment plate 25. The drive mechanism 24 and the flow diversion adjustment plate 25 correspond one-to-one. The combustion air chamber 17 provides support for the combustion air duct 23. Driven by the drive mechanism 24, the flow diversion adjustment plate 25 slides horizontally inside the combustion air duct 23. Through the through holes opened on the flow diversion adjustment plate 25, and based on the continuity equation, Bernoulli equation and resistance characteristics in fluid mechanics, the change in the distance between the flow diversion adjustment plate 25 and the inlet end of the combustion air duct 23 changes the flow cross-sectional area and local resistance to control the air volume and air velocity through the flow diversion adjustment plate 25, thereby realizing the function of regulating the heating air velocity in the combustion air chamber 17.

[0030] Reference Figure 1 and Figure 3 The inner wall of the combustion-supporting air duct 23 is evenly provided with multiple sliding grooves 22, and the outer wall of the diversion adjustment plate 25 is evenly provided with multiple sliders. The sliders on the diversion adjustment plate 25 are slidably connected to the inside of the sliding grooves 22. One of the sliders on the diversion adjustment plate 25 passes through the outer wall of the combustion-supporting air duct 23 and is fixedly installed on the output end of the drive mechanism 24.

[0031] Specifically, the output end of the lead screw in the drive mechanism 24 is connected to the slider on the flow divider plate 25, and the slide groove 22 that is horizontally connected to the slider passes through the side wall of the combustion air duct 23, so that the flow divider plate 25 can smoothly slide horizontally in the combustion air duct 23. Through the cooperation of the other slide grooves 22 and the slider, the flow divider plate 25 can slide horizontally in the combustion air duct 23, thereby helping to realize the function of relative sliding between the flow divider plate 25 and the combustion air duct 23.

[0032] Reference Figure 1 and Figure 4 On the other side of the heat storage box 11, there is a connecting pipe 14. One end of the connecting pipe 14 is fixed on the outer wall of the second reversing valve 15. The heat storage box 11 is equipped with a second temperature sensor 12 and a second electromagnetic flow valve 13 is installed on the outer wall of the connecting pipe 14.

[0033] Specifically, the connection between the heat storage tank 11 and the second reversing valve 15 is achieved through the connecting pipe 14, which also provides support for the second electromagnetic flow valve 13. Furthermore, the temperature of the heat storage tank 11 is detected in real time by the second temperature sensor 12, which can then determine the rate at which the heat storage tank 11 stores heat or the degree of heat loss when the heat storage tank 11 heats the air, thereby helping to improve the utilization efficiency of heat in the heat storage tank 11.

[0034] Reference Figure 1 and Figure 4 A connecting pipe 2 is fixedly installed on the other side of the heat storage box 6. One end of the connecting pipe 2 is fixedly installed on the outer wall of the second reversing valve 15. A first temperature sensor 4 is installed inside the heat storage box 6, and a first electromagnetic flow valve 3 is installed on the connecting pipe 2.

[0035] Specifically, the connection between the heat storage box 6 and the second reversing valve 15 is achieved through the connecting pipe 2, which also provides support for the first electromagnetic flow valve 3. The temperature of the heat storage box 6 is detected in real time by the first temperature sensor 4, which can then determine the rate at which the heat storage box 6 stores heat or the degree of heat loss when the heat storage box 6 heats the air. When the temperature in the heat storage box 6 reaches a predetermined value, the first reversing valve 9 and the second reversing valve 15 can be switched so that the heat storage box 6 stops storing heat and starts heating the air. At the same time, the second heat storage box 11 starts storing heat, which helps to improve the heat utilization efficiency of the burner.

[0036] Reference Figure 1 An ignition device 5 is installed on the upper side of the furnace body 1.

[0037] Specifically, the ignition device 5 can use an ignition gun to ignite the mixed gas. After the heating air and gas in the burner brick 18 are fully mixed and sprayed into the furnace body 1, the mixed gas can be heated by the ignition device 5, thereby realizing the function of ignition and heating of the burner.

[0038] Reference Figure 1 An exhaust pipe 10 is fixedly installed on the outer wall of the first reversing valve 9.

[0039] Specifically, by setting up the exhaust pipe 10 and cooperating with the first reversing valve 9, the flue gas that has recovered heat in the furnace body 1 can be discharged, thereby realizing the exhaust function of the burner.

[0040] Reference Figure 1 , Figure 2 and Figure 3 The outer wall of the furnace body 1 is equipped with a controller 21. The controller 21 is electrically connected to the first electromagnetic flow valve 3, the first temperature sensor 4, the ignition device 5, the diffused air supply system 7, the first reversing valve 9, the second temperature sensor 12, the second electromagnetic flow valve 13, the second reversing valve 15, the pressure sensor 16, the third electromagnetic flow valve 19, the gas supply component 20, and the drive mechanism 24.

[0041] Specifically, the furnace body 1 provides support for the controller 21, which in turn controls the gas supply assembly 20 to supply gas and the third electromagnetic flow valve 19 to regulate the gas flow. The controller 21 also controls the diffusion air supply system 7 to introduce external air. The first temperature sensor 4 and the second temperature sensor 12 monitor the internal temperatures of the heat storage tank 6 and the heat storage tank 11 in real time, transmitting the signals to the controller 21 for processing and analysis. This, in turn, controls the first reversing valve 9 and the second reversing valve 15 to switch directions, allowing the diffusion air supply system 7 to communicate with the heat storage tank 6, and the heat storage tank 6 to communicate with the combustion chamber 17, or to diffuse the air. The air supply system 7 is connected to the heat storage box 11, and the heat storage box 11 is connected to the combustion chamber 17. The pressure sensor 16 detects the pressure of the heated air input to the combustion chamber 17, so that the controller 21 controls the first electromagnetic flow valve 3 or the second electromagnetic flow valve 13 to adjust the flow rate of the heated air. The controller 21 also controls the drive mechanism 24 to precisely adjust the output of the heated air in the combustion chamber 17. Combined with the adjustment of the third electromagnetic flow valve 19, the fuel gas and heated air are adjusted to a suitable ratio. The controller 21 ignites the mixed fuel gas through the ignition device 5, thereby realizing the ratio adjustment of fuel and heated air.

[0042] Working principle: Controlled by controller 21, the gas supply component 20 provides gas, and the diffused air supply system 7 introduces external air. The first temperature sensor 4 and the second temperature sensor 12 monitor the internal temperatures of the heat storage tank 6 and the second heat storage tank 11 in real time, transmitting the signals to controller 21 for processing and analysis. This causes controller 21 to control the first reversing valve 9 and the second reversing valve 15 to switch, connecting the diffused air supply system 7 to the heat storage tank 6, or the heat storage tank 6 to the combustion chamber 17, or vice versa. The pressure sensor 16 monitors the real-time pressure of the heated air input to the combustion chamber 17, causing the first electromagnetic flow valve 3 or the second electromagnetic flow valve 15 to switch... The flow rate valve 13 regulates the flow rate of the heating air, and through the drive mechanism 24, it drives the flow diversion plate 25 to slide horizontally inside the combustion air duct 23. The flow diversion plate 25 and the inlet end of the combustion air duct 23 are changed through the through holes, thereby changing the flow cross-sectional area and local resistance to control the air volume and velocity through the flow diversion plate 25. This realizes the function of regulating the flow rate of the heating air in the combustion air chamber 17. Combined with the regulation of the third electromagnetic flow valve 19, the gas and heating air are adjusted to a suitable ratio. This solves the problem that traditional burners are prone to lean combustion and flameout when under low load conditions, resulting in combustion interruption, or rich combustion and carbon buildup due to the imbalance of fuel and air mixing ratio, resulting in low combustion efficiency.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated small-scale diffuse regenerative burner, comprising a furnace body (1), characterized in that: The outer wall of the furnace body (1) is provided with a diffused air supply system (7), a flue gas pipe (8), a burner brick (18), and a gas supply assembly (20). The output end of the gas supply assembly (20) is fixedly located on one side of the burner brick (18). A third electromagnetic flow valve (19) is provided between the gas supply assembly (20) and the burner brick (18). A combustion chamber (17) is fixedly located on the other side of the burner brick (18). A pressure sensor (16) and a second reversing valve (15) are fixedly located on one side of the combustion chamber (17). The outer wall of the second reversing valve (15) is fixedly provided with a heat storage box one (6) and a heat storage box two (11). The heat storage box one (6) is provided with a first electromagnetic flow valve (3), and the heat storage box two (11) is provided with a second electromagnetic flow valve (13). The output end of the diffused air supply system (7) is fixedly provided with a first reversing valve (9). One side of the heat storage box one (6) and the heat storage box two (11) are both provided on the first reversing valve (9). One end of the flue gas pipe (8) is fixedly provided on the outer wall of the second reversing valve (15).

2. The integrated compact diffuse regenerative combustor of claim 1, wherein: The combustion chamber (17) is provided with a combustion air duct (23) inside. Multiple flow adjustment plates (25) are slidably connected inside the combustion air duct (23). Multiple through holes are opened on the flow adjustment plates (25). A drive mechanism (24) is provided on the outer wall of the combustion air duct (23). The output end of the drive mechanism (24) is fixedly installed on the flow adjustment plate (25).

3. The integrated compact diffuse regenerative combustor of claim 2, wherein: The inner wall of the combustion-supporting air duct (23) is evenly provided with multiple sliding grooves (22), and the outer wall of the diversion adjustment plate (25) is evenly provided with multiple sliders. The sliders on the diversion adjustment plate (25) are slidably connected to the inside of the sliding grooves (22). One of the sliders on the diversion adjustment plate (25) passes through the outer wall of the combustion-supporting air duct (23) and is fixedly installed on the output end of the drive mechanism (24).

4. The integrated compact diffuse regenerative combustor of claim 1, wherein: A connecting pipe (14) is provided on the other side of the heat storage box (11). One end of the connecting pipe (14) is fixed on the outer wall of the second reversing valve (15). A second temperature sensor (12) is provided inside the heat storage box (11). The second electromagnetic flow valve (13) is provided on the outer wall of the connecting pipe (14).

5. The integrated compact diffuse regenerative combustor of claim 1, wherein: A connecting pipe (2) is fixedly installed on the other side of the heat storage box (6). One end of the connecting pipe (2) is fixedly installed on the outer wall of the second reversing valve (15). A first temperature sensor (4) is installed inside the heat storage box (6). The first electromagnetic flow valve (3) is installed on the connecting pipe (2).

6. The integrated compact diffuse regenerative combustor of claim 1, wherein: An ignition device (5) is provided on the upper side of the furnace body (1).

7. The integrated compact diffuse regenerative combustor of claim 1, wherein: An exhaust pipe (10) is fixedly provided on the outer wall of the first reversing valve (9).

8. The integrated compact diffuse regenerative combustor of claim 1, wherein: The outer wall of the furnace body (1) is provided with a controller (21), which is electrically connected to the first electromagnetic flow valve (3), the first temperature sensor (4), the ignition device (5), the diffused air supply system (7), the first reversing valve (9), the second temperature sensor (12), the second electromagnetic flow valve (13), the second reversing valve (15), the pressure sensor (16), the third electromagnetic flow valve (19), the gas supply component (20), and the drive mechanism (24).

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