An integrated power combustion device

Through the integrated power combustion device, the use of kinetic energy air to lead the gas mixing and microcontroller control method, the problems of incomplete combustion and excessive toxic gas emissions in the existing burner technology are solved, and the combustion effects of high heat load, low emissions and energy-saving and low carbon are achieved.

CN111486454BActive Publication Date: 2025-04-18何林轩
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Patent Information

Application Number
CN202010465516.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-05-28
Publication Date
2025-04-18
Estimated Expiration
2040-05-28

AI Technical Summary

Technical Problem

The existing burner technology has problems such as incomplete combustion, excessive toxic gas emissions, unstable firepower and complex structures. Especially in the unbalanced gas supply pressure of urban gas pipelines, it is difficult to achieve stable combustion and low emissions.

Method used

The integrated power combustion device is adopted to increase the excess air coefficient through kinetic energy air, and the proportional matching of gas and air is controlled by the single-chip microcomputer, and the compact device structure is used to strengthen gas mixing and combustion, achieving high thermal load and low emissions.

Benefits of technology

The thin, transparent and sharp angle shape of the flame is realized, which significantly reduces the emission of carbon monoxide, nitrogen oxides and carbon dioxide. It has the characteristics of fast combustion speed, high combustion intensity, energy-saving and low carbon saving, and has a compact structure, saving metal materials costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an integrated power combustion device, including a power burner, a single chip microcomputer, a gas device, a power adapter and an operation interface. An air pneumatic device is provided on one side of the power burner, and the other side is connected to the gas device. A gas injection pipe, a gas inverted cone guide, a mixed gas gathering device, a corrugated net, a flame cover, an ignition device and a flame detection device are provided inside the power burner. The gas device includes a gas pipeline, a gas solenoid valve, a gas pressure regulating valve and a gas pressure sensor. The advantages of the present invention compared with the prior art are: it can stabilize and balance the pressure of household gas, the flame is thin, transparent and pointed during combustion, and can greatly reduce carbon monoxide, nitrogen oxides and carbon dioxide combustion products at the same time. It has the characteristics of fast combustion speed, strong combustion intensity and heat explosive power, not only saving time, but also significantly energy saving and low carbon, and a smaller burner volume, and can also meet the high heat load firepower requirements, saving the cost of metal materials.
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Description

Technical Field

[0001] The invention relates to the technical field of combustion devices, and in particular to an integrated power combustion device. Background Art

[0002] With the vigorous development of the gas industry, gas appliances have become one of the indispensable daily appliances that are closely related to our lives. Especially in the 21st century, under the premise that my country has proposed various policies and guidelines such as energy preparedness, sustainable development strategy, and "energy conservation and emission reduction", the production of new gas appliances that conform to the eating habits of the Chinese people, with fast heating, concentrated fire, high combustion intensity, energy saving and high efficiency, and ultra-low pollutant emissions, is of great significance to improving the energy utilization rate of the entire society, protecting the atmospheric environment and the health of consumers.

[0003] Almost all important performance indicators of gas appliances are reflected in their core components - burners, so the development history of gas combustion is also the development history of burners. There are generally three types of gas burners: diffusion type, atmospheric type, and complete premix type.

[0004] Diffusion burner: The burner designed according to the diffusion combustion method is called a diffusion burner. The air required for combustion is not mixed with the gas in advance, but supplied during the combustion process. The primary air coefficient α = 0. Advantages: stable combustion, easy ignition, no backfire, and can still work normally when the gas pressure is 200-400 Pa or lower. Disadvantages: low combustion intensity, long flame, requiring a larger combustion chamber, prone to incomplete combustion, soot, and low combustion temperature. It is more used in water boilers, water heaters, heating equipment and small heating boilers. Before 1945, most civilian gas stoves on the British market used diffusion combustion.

[0005] Atmospheric burner: The burner designed according to the partial premixed combustion method is called an atmospheric burner, which consists of a combustion head cover and an ejector. The gas and part of the air are premixed, and the excess air coefficient is generally 0<α<1. It was invented by the German chemist Bunsen in 1855. It can inhale some air from the surrounding atmosphere to premix with the gas, forming a non-luminous blue flame during combustion. Later, it was named "Bunsen flame" and "Bunsen burner" after him. Until now, the world and even China, the most produced and sold gas stoves, including mainstream brands, mostly use this type of burner. The ejector tube is roughly the same, but the combustion head fire cover is different, including straight fire, rotary fire, etc. Advantages: The flame is shorter than the diffusion burner, the fire is strong, the combustion temperature is high, it can burn gases of different properties, and it has strong adaptability. Disadvantages: Since only part of the air is premixed, secondary air is often required, otherwise incomplete combustion will occur, resulting in excessive carbon monoxide emissions. It is widely used, such as household stoves, water heaters, canteen stoves, small boilers, and industrial furnaces.

[0006] Completely premixed burner: The burner designed according to the completely premixed combustion method is called a completely premixed burner. It is developed on the basis of partially premixed combustion. Before combustion, the gas and air are completely premixed. Generally, the excess air coefficient is 1≤α≤1.1. The combustion is completed instantly. The flame is very short or even invisible. It is also called flameless combustion. Completely premixed combustion does not require secondary air. The combustion temperature is high and it is easy to meet the requirements of high-temperature processes. However, the flame has only one combustion surface, the flame propagation ability is extremely strong, the combustion stability is poor, the possibility of flashback is large, and the adjustment range is relatively small. In order to prevent flashback, the flow field of the airflow must be made as uniform as possible to ensure that the airflow velocity at each point under the minimum load is greater than the flame propagation velocity. Usually, cooling the burner nozzle is adopted to reduce the flame propagation velocity at the burner outlet. The head structure is relatively complex, and the heat load needs to be increased. The structure is large and bulky. According to the fully premixed combustion method, the burners currently developed include ceramic or bimetallic mesh infrared burners, plate burners and new metal fiber burners.

[0007] The last two combustion methods mentioned above: atmospheric burners and fully premixed burners have a wide range of applications, especially in household gas appliances. They all have a technical homogeneity feature, both use ejector technology, with gas as the main factor, gas mixed with air, and oxygen in the air is used as an oxidant and is sucked into the ejector tube cavity by the gas injection for mixing, and combustion is achieved based on negative pressure. The mixed gas ducts in the tube cavity are all open, and the gas pressure is used as the firepower performance of the burner. The higher the pressure, the greater the firepower, and it is more likely to produce toxic gases CO and excessive NOx emissions. Low pressure, insufficient firepower, slow heating, and the volatility of the gas have a strong impact on gas appliances.

[0008] In addition, there are also a blast-type burner with an air blast and a blast-type infrared burner in recent years. Chinese patent 201010194846.5 and application publication date CN102269406A disclose a blast-type infrared burner and a stove equipped with the burner. It is not difficult to find that the mixing chamber area from the start of gas injection to the fire cover of the burner head is completely empty. From the shape of the mixing chamber, it is also a burner with an induced-ejection structure. On the basis of the induced-ejector, a fan is directly added to the air door of the induced-ejector. Since the inner cavity of the induced-ejector burner is completely empty without hindering the gas flow structure, adding an air blast, the fire outlet of the burner head and the flame stability are the key. In order to prevent the occurrence of flameout, the air blast cannot be completely strong. The excess air coefficient is generally controlled at 0.7.≤α≤1.1. This is a feature of the induced-ejection burner combustion technology. Below α<0.7, red flames and yellow flames will appear. α 1.1 or above will cause flameout. By adding a fan alone, the combustion intensity is increased, but the combustion speed and airflow speed are not significantly increased, which is slightly higher than the atmospheric and infrared burners without fans mentioned above. Since the excess air coefficient is limited to prevent flameout, it still draws on the main technical characteristics of induced combustion, and often requires secondary air on the head of the burner to replenish it. You can often hear the whistling sound of the secondary air at the head of the burner and the puffing sound of the flame extinguishing. If it is in a state of combustion, and the external gas pressure suddenly changes, there is no relevant system to control the external pressure change, the combustion condition is more complicated, and it is more difficult to control the flameout and flashback phenomenon. Summary of the invention

[0009] The technical problem to be solved by the present invention is to overcome the above technical defects and provide an integrated power combustion device, which can stabilize and balance the pressure of household gas. When burning, the flame is thin, transparent and pointed, which can greatly reduce the combustion products of carbon monoxide, nitrogen oxides and carbon dioxide. It has the characteristics of fast combustion speed, strong combustion intensity and thermal explosive power, which not only saves time, but also has significant energy-saving and low-carbon characteristics. The smaller burner volume can also meet the high heat load firepower requirements and save the cost of metal materials.

[0010] To solve the above technical problems, the technical solution provided by the present invention is: an integrated power combustion device, comprising a power burner, a single-chip microcomputer, a gas device, a power adapter and an operating interface, the single-chip microcomputer is connected to the power burner, the gas device, the power adapter and the operating interface, an air pneumatic device is provided on one side of the lower end of the power burner, and the other side of the lower end of the power burner is connected to the gas device, the inside of the power burner is provided with a gas injection pipe, a gas inverted cone guide, a mixed gas gathering device, a corrugated net, a flame spray cover, and a corresponding ignition device and flame detection device from bottom to top, the air pneumatic device, the ignition device and the flame detection device are all electrically connected to the single-chip microcomputer, the gas device comprises a gas pipeline, a gas solenoid valve, a gas pressure regulating valve, and a gas pressure sensor, and the gas solenoid valve and the gas pressure sensor are all electrically connected to the single-chip microcomputer.

[0011] Preferably, the power burner is a cylindrical airway cavity, and the height of the cylinder is greater than one times the diameter of the bottom of the cavity. The power burner enters kinetic air from the bottom of the cavity, and the excess air coefficient in the cavity is 1.1<α≤4.5.

[0012] Preferably, the aerodynamic device comprises a ventilation duct and a fan arranged at one end of the ventilation duct, and the fan is electrically connected to the single-chip microcomputer.

[0013] Preferably, a gas nozzle is provided in the gas injection pipe and is located directly below the gas inverted cone-shaped deflector, and the upper end of the gas nozzle is in an inverted cone shape.

[0014] Preferably, a gas gap ring is provided outside the upper cross-section of the gas inverted cone-shaped deflector, and the gap length of the gas gap ring does not exceed one sixth of the diameter of the upper cross-section of the gas inverted cone-shaped deflector.

[0015] Preferably, the mixed gas gathering device is a cylindrical ceramic with a wide bottom and a narrow top and a through hole in the middle. The corrugated net has at least one arranged wave-shaped structure, the wave-shaped arch height is 3 mm, and the mesh number is 100 meshes.

[0016] Preferably, each small hole on the flame-spraying cover has a diameter of 2.2 to 2.5 mm and a hole depth of 3 mm. The outer surface of the small hole is in the shape of a 3.5 mm enlarged hole, and the enlarged hole edges of each small hole are close to each other.

[0017] Compared with the prior art, the advantages of the present invention are: reverse research on the mixing mode of combustible gas, changing the slow flow mode of gas in the induced burner, taking kinetic air as the leading factor, strengthening the mixing degree with gas under the action of continuous strong swirling air, enlarging the excess air coefficient α above 1.1, and increasing part of the cooling air flow, so as to reduce carbon monoxide and nitrogen oxide emissions, and achieve high heat load intensity without increasing the volume of the burner cavity. By arranging compact devices and components that are conducive to gas mixing in the cavity, the cavity becomes an airway cavity where air is strongly mixed with gas to form a rapid movement of mixed gas, so that the mixed gas is evenly and fully sprayed and burned quickly from the flamethrower at the top of the burner cavity, instead of slowly burning on the burner fire cover, eliminating the phenomenon of burning heating and burning the fire cover at the same time to consume energy.

[0018] It overcomes the shortcomings of existing burner technology and the impact of the objective imbalance of gas supply pressure in urban gas pipelines on burners. It can stabilize and balance the household gas pressure. When burning, the flame is thin, transparent and pointed, which can greatly reduce carbon monoxide, nitrogen oxides and carbon dioxide combustion products. It has a fast combustion speed, strong combustion intensity and thermal explosive power, which not only saves time, but also has significant energy-saving and low-carbon characteristics. The burner structure is light and compact, and the small burner volume does not occupy a large space. It can also meet high heat load firepower requirements, save burner materials, save metal material cost, and can work under a higher excess air coefficient. It can burn stably, has extremely high combustion efficiency, saves time and gas, and is more environmentally friendly and has high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an integrated power combustion device of the present invention.

[0020] Figure 2 The present invention is a schematic diagram of the structure of an inverted cone-shaped gas deflector of an integrated power combustion device.

[0021] Figure 3It is a structural schematic diagram of a mixed gas gathering device of an integrated power combustion device of the present invention.

[0022] Figure 4 It is a schematic diagram of the corrugated network structure of an integrated power combustion device of the present invention.

[0023] Figure 5 The present invention is a schematic diagram of the structure of a flame spray cover of an integrated power combustion device.

[0024] Figure 6 It is a schematic diagram of the structure of a gas nozzle of an integrated power combustion device of the present invention.

[0025] As shown in the figure: 1. Power burner, 2. Single chip microcomputer, 3. Gas device, 4. Power adapter, 5. Operation interface, 6. Air power device, 7. Gas injection pipe, 8. Gas inverted cone deflector, 9. Mixed gas gathering device, 10. Corrugated net, 11. Flame cover, 12. Ignition device, 13. Flame detection device, 14. Gas nozzle, 15. Gas pipeline, 16. Gas solenoid valve, 17. Gas pressure regulating valve, 18. Gas pressure sensor, 19. Ventilation duct, 20. Fan. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] An integrated power combustion device comprises a power burner 1, a single chip computer 2, a gas device 3, a power adapter 4 and an operation interface 5, wherein the single chip computer 2 is connected to the power burner 1, the gas device 3, the power adapter 4 and the operation interface 5, an air pneumatic device 6 is arranged on one side of the lower end of the power burner 1, and the other side of the lower end of the power burner 1 is connected to the gas device 3, a gas injection pipe 7, a gas inverted cone flow guide 8, a mixed gas gathering device 9, a corrugated net 10, a flame spraying cover 11, and a corresponding ignition device 12 and a flame detection device 13 are arranged in sequence inside the power burner 1 from bottom to top, the air pneumatic device 6, the ignition device 12 and the flame detection device 13 are all electrically connected to the single chip computer 2, the gas device 3 comprises a gas pipeline 15, a gas solenoid valve 16, a gas pressure regulating valve 17, and a gas pressure sensor 18, and the gas solenoid valve 16 and the gas pressure sensor 18 are all electrically connected to the single chip computer 2.

[0028] The electrical components provided on the air power device 6 and the gas device 3 are controlled by the single chip computer 2 at the same time, so that the amount of gas and the amount of air entering the cavity of the power burner 1 are matched in a proportional mixing ratio. In addition, the pressure and flow rate generated by the air power device 6 are greater than the pressure and flow rate of the gas.

[0029] The power burner 1 is a cylindrical airway cavity, and the height of the cylinder is greater than one times the diameter of the bottom of the cavity. The power burner 1 enters kinetic air from the bottom of the cavity, and the excess air coefficient in the cavity is 1.1<α≤4.5.

[0030] The aerodynamic device 6 includes a ventilation duct 19 and a fan 20 arranged at one end of the ventilation duct 19. The fan 20 is electrically connected to the single-chip computer 2. The fan 20 can also be an air pump or a booster pump. According to the gas pressure value reflected by the current / voltage signal output by the gas pressure sensor 18 collected by the single-chip computer 2, the single-chip computer 2 drives the fan 20 to rotate at a frequency that is proportional to the amount of air and gas entering the power burner 1.

[0031] The gas injection pipe 7 is provided with a gas nozzle 14 located directly below the gas inverted cone-shaped deflector 8. The upper end of the gas nozzle 14 is in an inverted cone shape, and the gas is injected and collides with the cone surface.

[0032] A gas gap ring is arranged outside the upper cross section of the gas inverted cone flow guide 8 , and the gap length of the gas gap ring does not exceed one sixth of the diameter of the upper cross section of the gas inverted cone flow guide 8 .

[0033] The mixed gas gathering device is an 8 mm thick cylindrical ceramic with a wide bottom and narrow top and a through hole in the middle. The spacing between it and the gas inverted cone deflector 8 below is 10 mm. The bottom width is Φ25 mm and the top is Φ15 mm. The corrugated net has at least one arranged wave structure, the wave arch height is 3 mm, and the mesh number is 100.

[0034] Each small hole on the flame-spraying cover 11 has a diameter of 2.2 to 2.5 mm and a hole depth of 3 mm. The outer surface of the small hole is in the shape of a 3.5 mm enlarged hole, and the enlarged hole edges of each small hole are close to each other.

[0035] When the present invention is implemented, a switch is started on the operation interface, the single chip microcomputer starts to work, and two gases, air and fuel gas, enter the power burner cavity respectively.

[0036] Implementation of gas input status:

[0037] A gas solenoid valve, a gas pressure regulating valve and a gas pressure sensor are arranged in sequence on the gas pipeline where the gas starts to enter. The gas solenoid valve at the head end is arranged to ensure the safety of gas transportation. In the event of abnormal combustion conditions, fan failure, etc., it is controlled by a single-chip microcomputer to ensure gas safety. The gas solenoid valve is electrically connected to the single-chip microcomputer.

[0038] A gas pressure stabilizing valve is set behind the gas solenoid valve. Since the inlet pressure of the gas is unbalanced, fluctuating, the gas flow fluctuates, and the gas also has a certain degree of turbulence when the solenoid valve is opened. The setting of the gas pressure stabilizing valve stabilizes the gas input, reduces the higher pressure, stabilizes the flow and saves gas, so that the gas flows at a uniform speed in the gas pipeline.

[0039] At the end of the gas device, which is also the beginning of the power burner cavity, a gas pressure sensor is set to finally determine the precise pressure entering the power burner cavity. The gas pressure sensor is electrically connected to the single-chip microcomputer. The pressure sensor converts the detected pressure value into a current value parameter signal and feeds it back to the single-chip microcomputer. The single-chip microcomputer receives the current signal from the pressure sensor to run the working parameters to the fan. According to different gas pressure values, the single-chip microcomputer controls the fan to deliver the proportional matching air volume to the power burner cavity at different speed frequencies. The higher the gas pressure, the greater the amount of air entering the cavity, and the lower the gas pressure, the less the matching air volume. In short, through the current / voltage signal output by the gas pressure sensor, it is controlled by the single-chip microcomputer so that the amount of gas entering the cavity is proportional to the amount of air (that is, the pressure value is proportional to the amount of air). The different speed frequencies of the fan can be output by the single-chip microcomputer to the fan IC, and the speed is controlled by the IC. The speed of the fan can also be driven by the single-chip microcomputer outputting different voltage or current values.

[0040] Implementation of air input status:

[0041] The power burner mainly sets a fan (blower / fan) on one side of the bottom of the cavity to inject kinetic air into the cavity, so that the air and gas are strongly mixed. After the mixed gas is formed, it encounters some mixing devices / devices to generate stronger power and speed. The air pressure is high and the gas pressure is low. The high and low gas pressures of the two gases match each other, which is conducive to the air-dominated forced mixing of the gas. In order to make the mixed gas formed by air and gas more complete and thorough, and to achieve better and more stable combustion conditions, the following is the mixing process inside the power burner cavity:

[0042] The power burner cavity is provided with an air power device (ventilation duct and fan), a gas injection pipe, a gas inverted cone guide, a mixed gas gathering device, a corrugated net, a flame spray cover, an ignition device, and a flame detection device from bottom to top. The air power device, the ignition device, and the flame detection device are all electrically connected to the single-chip microcomputer.

[0043] The specific implementation is to set an air power device (ventilation duct and fan) at the bottom of the cavity, the fan line end is electrically connected to the single-chip computer, the fan is controlled by the single-chip computer to rotate and bring the air outside the cavity into the power burner cavity, a gas injection pipe is set in the middle of the bottom, the gas nozzle is in the gas injection pipe, the upper end of the nozzle is in an inverted cone shape, the upper part of the nozzle is directly opposite to the gas inverted cone guide, the gas is sprayed onto the oblique section of the gas inverted cone guide and then reflected back to be mixed with the strong air coming from the front, the kinetic air surrounds the gas mixture in the whole range, and the mixed gas is discharged along the upper section of the gas inverted cone guide The mixed gas gathers the gas in a certain space away from the upper corrugated net, which is conducive to the slow release, superposition and offset of the mixed gas. The mixed gas is gathered through continuous squeezing and mixing, and its airflow volume and speed are constantly changing after passing through each device and component. After being rectified and combed by the corrugated net, the mixed gas is fast, uniform and stable, and is finally ejected from the flamethrower cover. After ignition and combustion, the flame is bright, the firepower is strong, and the combustion is stable and sufficient.

[0044] MCU working status:

[0045] The power adapter powers up the single-chip microcomputer, and the single-chip microcomputer is electrically connected to the gas solenoid valve and gas pressure sensor on the gas device and the ignition device, flame detection device, and air power device of the power burner.

[0046] After the operation interface is started, the single-chip microcomputer starts to work, collects signals from the gas device, and outputs the current signal according to the pressure value detected by the gas pressure sensor on the gas device, which is sent to the main control MCU on the single-chip microcomputer through the AD conversion circuit. The main control MCU receives the current signal of the gas pressure sensor, and performs PWM speed regulation on the fan to control the speed of the fan, thereby controlling the air volume of the fan. The gas pressure value is different, and the current / voltage signal value fed back by the gas pressure sensor is different, so the speed frequency of the single-chip microcomputer drive motor is also different. The single-chip microcomputer controls the gas and air entering the power burner to be mixed in direct proportion, achieving a scientific 1:2 ratio. At the same time, the single-chip microcomputer main control MCU sends a command to ignite the ignition device. The ignition device starts to ignite from a voltage of 3v to a high voltage of 15000V. The main control MCU detects the flame and turns off the ignition device. During the combustion process, the IC on the single-chip microcomputer forms a closed-loop circuit for patrol detection. If an abnormality is detected, the gas solenoid valve is immediately closed.

[0047] The advantages of the present invention are as follows:

[0048] 1: The burner has a light and compact structure and does not take up much space;

[0049] 2: Save burner materials: The power burner cylinder is 105 mm high, the burner flame cap is 50 mm in diameter, and can achieve a high-intensity heat load of 4.2KW. The general burner flame cap (commonly known as the fire distributor) is made of copper, with a diameter of more than 110 mm and a weight of more than 1000 grams, while the flame cap of this power burner only needs about 130 grams of copper. Save a lot of precious metals;

[0050] 3: It can work under a higher excess air coefficient and can burn stably;

[0051] 4: Significant energy saving: from several aspects

[0052] (1) Control the gas supply source. By setting a gas pressure regulating valve and a gas pressure sensor in the gas device, the gas input pressure can be accurately determined. On the one hand, it can stabilize the gas fluctuation, and on the other hand, it can reduce the gas supply pressure into the house. In essence, it reflects the principle of increasing revenue and reducing expenditure, which directly saves gas. Setting a gas pressure regulating valve is generally not adopted by the industry's induced burner technology, because induced combustion relies on gas injection. The national rated standard pressure is 2000 Pa. The firepower itself is limited. Pressure is a manifestation of firepower. Often, the gas pressure will not be reduced to meet consumers' demand for high firepower;

[0053] (2) Extremely high combustion efficiency, saving time and gas

[0054] Because the flame is ejected from the flame cover, the fire is concentrated and fierce, with power and direction, focusing heat to the heated object. The combustion speed is fast and it is not easy to dissipate heat. The flame energy reaches the heated object directly, saving time, and saving time means energy saving.

[0055] From the experiment, we found that the temperature of the copper flamethrower cover during continuous combustion was about 150 degrees, measured by an infrared thermometer. The temperature around the flamethrower cover was not high either. If a glass panel was installed, the temperature of the glass panel would not exceed 80 degrees due to the convection heat of the combustion, which effectively solved the risk of glass bursting. In fact, it shows the distribution direction of the heat of the combustion energy. Because it is an aerodynamic jet combustion, the heat gathers at the top, which has less impact on the heat attack of the burner components, reflecting energy saving. The thermal efficiency can be above 70%. There is also a water boiling experiment. Usually, water will make a sound when heated to 90 degrees, but when using an integrated power burner, the water temperature starts to make a violent sound at 78 degrees, reflecting energy saving.

[0056] (3) Due to the effect of aerodynamic kinetic energy, fuel combustion also drives the heat conduction of the air. The designed gas flow rate is 3.5KW, but the actual firepower reaches 4.2KW, saving 0.7KW of gas flow rate.

[0057] 5: Significant environmental protection: The integrated power burner first solves the impact of gas pressure on the burner. The rated pressure specified in the national standard is 2000 Pa. Many gas appliances such as gas stoves and water heaters are designed according to the rated pressure of 2000 Pa to design the combustion performance of the burner, and accept the qualified requirements of the national inspection department. For example, in another natural gas household supply environment, often due to the natural gas pipeline distribution and objective factors, the external input pressure exceeds 2000 Pa. The performance indicators of the burner designed according to the national standard will change, further aggravating the harmful emissions of combustion products such as carbon monoxide / carbon dioxide / nitrogen oxides. The integrated power burner, through the control of the gas device components and the kinetic air of the power burner by the single-chip microcomputer, gives priority to The strong mixing ratio of stable matching air mixed with gas is considered. Under the action of strong swirling air, the mixing of air and gas is accelerated. Then, the uniformity of the mixed gas is further enhanced through the devices and components set in the cavity, and the combustion speed is increased. Then, for the primary air (excluding the secondary air), the excess air coefficient α is set. The excess air coefficient is 1.1<α≤4.5, which makes the combustion product emission index of the integrated power burner extremely low. Through the gas combustion detection flue gas emission experiment, using the world-recognized German Testo350 flue gas analyzer, the data shows that carbon monoxide is 9ppm, nitrogen oxides are around 9.6ppm, and carbon dioxide is around 3.46%. The emission indicators of the three gases are low at the same time and the combustion performance indicators are stable. It solves the problem of mutual constraints and contradictions between the emission data of the three gases in combustion;

[0058] 6: High security

[0059] Due to the use of single-chip microcomputer technology, software and sensor technology, it has a high degree of intelligence and continuously patrols and searches the power burner, gas device, and IC. If abnormal flame combustion conditions, fan failure, and other problems are detected, the gas valve will be closed immediately to ensure safety.

[0060] Significance: An integrated power combustion device takes into account the objective factors in gas transmission and distribution that have a certain impact on the combustion of gas appliances. It changes the mixing method of existing gas induced burners for a hundred years and invents a new clean combustion method for gas combustion. It uses the kinetic energy of air to strengthen the mixing with gas, so that the mixed gas obtains more powerful energy, and the combustion intensity and combustion speed are greatly improved. Therefore, through the working principle of this integrated power combustion device, it can be applied to more gas appliance thermal energy utilization fields.

[0061] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. An integrated power combustion device, characterized in that: The invention comprises a power burner (1), a single chip computer (2), a gas device (3), a power adapter (4) and an operation interface (5), wherein the single chip computer (2) is connected to the power burner (1), the gas device (3), the power adapter (4) and the operation interface (5), an air pneumatic device (6) is provided on one side of the lower end of the power burner (1), and the other side of the lower end of the power burner (1) is connected to the gas device (3), and the power burner (1) is provided with a gas injection pipe (7), a gas inverted cone deflector (8), a mixing device (9), and a gas injection pipe (10), a gas injection pipe (11), a gas inverted cone deflector (12), a mixing device (13), and a gas injection pipe (14). A gas gathering device (9), a corrugated net (10), a flame spraying cover (11), and a corresponding ignition device (12) and a flame detection device (13); the pneumatic device (6), the ignition device (12) and the flame detection device (13) are all electrically connected to the single chip computer (2); the gas device (3) comprises a gas pipeline (15), a gas solenoid valve (16), a gas pressure regulating valve (17), and a gas pressure sensor (18); the gas solenoid valve (16) and the gas pressure sensor (18) are all electrically connected to the single chip computer (2); A gas gap ring is arranged outside the upper cross section of the gas inverted cone flow guide (8), and the gap length of the gas gap ring does not exceed one sixth of the diameter of the upper cross section of the gas inverted cone flow guide (8); The mixed gas gathering device (9) is a cylindrical ceramic with a wide bottom and a narrow top and a through hole in the middle. The corrugated net (10) has at least one arranged wave-shaped structure, the wave-shaped arch height is 3 mm, and the mesh number is 100 meshes.

2. An integrated power combustion device according to claim 1, characterized in that: The power burner (1) is a cylindrical airway cavity, and the height of the cylinder is greater than one times the diameter of the cavity bottom. The power burner (1) enters kinetic air from the cavity bottom, and the excess air coefficient in the cavity is 1.1<α≤4.

5.

3. An integrated power combustion device according to claim 1, characterized in that: The aerodynamic device (6) comprises a ventilation duct (19) and a fan (20) arranged at one end of the ventilation duct (19); the fan (20) is electrically connected to the single chip computer (2).

4. An integrated power combustion device according to claim 1, characterized in that: The gas injection pipe (7) is provided with a gas nozzle (14) located directly below the gas inverted cone-shaped deflector (8), and the upper end of the gas nozzle (14) is in an inverted cone shape.

5. The integrated power combustion device according to claim 1, characterized in that: Each small hole on the flame-spraying cover (11) has a diameter of 2.2-2.5 mm and a hole depth of 3 mm. The outer surface of the small hole is in the shape of a 3.5 mm enlarged hole, and the enlarged hole edges of each small hole are close to each other.

Citation Information

Patent Citations

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