Square combustor for premixed combustion of liquid alcohol fuel and air in combustion chamber
By designing structures such as air buffer chamber, air outlet plate and square air duct in the burner, the full mixing of alcohol fuel and air is achieved, and the flame range is expanded by using high-pressure ignition and fire barrier, which solves the low flame temperature of traditional burners and the problem of small range improves combustion efficiency and reduces energy consumption.
Patent Information
- Application Number
- CN202420888802.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-25
AI Technical Summary
In the premixed combustion chamber of traditional burners, gas and atomized alcohol fuel fail to react sufficiently, resulting in a low flame temperature, low combustion efficiency, and a narrow flame range, resulting in large energy consumption.
A square burner is designed for premixed and burned with liquid alcohol fuel and air in the combustion chamber. It adopts structures such as air buffer chamber, air outlet plate and square air duct to allow air to enter the premixed combustion chamber from multiple directions and atomized fuel. Combine well and ignite with a high-pressure ignition needle, and combine the fire barrier to press the flame toward all around to expand the combustion range.
The flame temperature and combustion efficiency are improved, the flame color becomes blue, the temperature is high, the flame combustion range is expanded, and energy consumption is reduced. The combustion time of traditional burners is reduced by one third under the same specifications.
Smart Images
Figure CN222363883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of burners, in particular to a square burner for premixing and burning liquid alcohol fuel and air in a combustion chamber. Background Art
[0002] A burner is a device that can generate flames. Currently, it is mainly used in floor heating equipment and greenhouse planting in the north. When used in floor heating, a heat exchanger is installed on the top of the burner, and the heat exchanger is connected to the floor heating pipe through a pipe, and the floor heating pipe then pumps water back to the heat exchanger through a water pump to form a cycle. When used in greenhouse planting, a radiator is also provided between the water pump and the heat exchanger. The radiator is provided inside the greenhouse, and the temperature is discharged through the radiator. In the prior art, the main problems of traditional burners when in use are: in the premixed combustion chamber, the gas does not fully react with the atomized alcohol fuel (the gas is input from one direction), resulting in the ejected flame being generally a red flame and a low temperature, thereby greatly reducing the combustion effect of the burner. In addition, the ejected flame of the traditional burner is generally concentrated in the middle of the flame spraying plate, and the closer to the center, the higher the flame, and the smaller the range of flame combustion, resulting in low efficiency during combustion and heating and high energy consumption.
[0003] Based on the above problems, we propose a square burner in which liquid alcohol fuel is premixed with air and burned in the combustion chamber. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a square burner for premixing liquid alcohol fuel and air in a combustion chamber for combustion. The improved burner can effectively solve the problems raised in the above-mentioned background technology.
[0005] The technical solution of the utility model is:
[0006] A square burner for premixing liquid alcohol fuel and air in a combustion chamber, comprising a burner body, a high-pressure ignition needle, an atomizing nozzle and a flame stabilizing cover plate; the burner body is provided with a high-pressure ignition needle and an atomizing nozzle respectively; the open end of the burner body is provided with a flame stabilizing cover plate;
[0007] An air buffer chamber and a premixing combustion chamber are also provided inside the burner body, and the air buffer chamber and the premixing combustion chamber are connected. A fan is also provided at one end of the burner body, and the air outlet end of the fan is connected to the air buffer chamber. The needle head of the high-pressure ignition needle and the nozzle of the atomizing nozzle are located inside the premixing combustion chamber. A fire baffle is also provided inside the premixing combustion chamber, and a fire outlet hole is provided on the flame stabilizing cover plate.
[0008] Furthermore, the burner body is a rectangular structure.
[0009] Furthermore, the fire outlet hole is a circular or elliptical structure.
[0010] Furthermore, a bottom plate is provided at the inner bottom of the burner body, and a first air outlet hole is provided on the bottom plate. The first air outlet hole is a circular or square structure.
[0011] Furthermore, the fan is a blower, which is fixed to the bottom of the burner body, the air outlet end of the burner body is connected to the first air outlet, and the other end of the first air outlet is connected to the air buffer chamber.
[0012] Furthermore, an air outlet plate and a square air duct are arranged between the air buffer chamber and the premixed combustion chamber, the air outlet plate and the square air duct are connected, a second air outlet hole is arranged on the air outlet plate, and a third air outlet hole is arranged on the square air duct, the air buffer chamber is connected with the premixed combustion chamber through the second air outlet hole and the third air outlet hole, and the second air outlet hole and the third air outlet hole are both circular or square structures.
[0013] Furthermore, the fire baffle is fixedly connected to the bottom of the flame stabilizing cover plate and is located in the middle of the premixing combustion chamber. A fourth air outlet is provided on the fire baffle, and the fourth air outlet is a circular structure.
[0014] Furthermore, an air guide circular tube is provided inside the premixed combustion chamber, and a fifth air outlet hole is provided on the air guide circular tube, and the fifth air outlet hole is an elliptical structure.
[0015] Furthermore, the number of the air guide circular tubes is four and they are symmetrically arranged below the fire baffle, and the air guide circular tubes are fixedly connected to the burner body.
[0016] Furthermore, the burner also includes a high-pressure igniter and an electromagnetic pressure pump, which are respectively fixed to the burner body, the high-pressure igniter is electrically connected to the high-pressure ignition needle, and the electromagnetic pressure pump is connected to the atomizing nozzle through a pipeline; the needle head of the high-pressure ignition needle is arranged close to the nozzle of the atomizing nozzle.
[0017] The beneficial effects of the utility model are:
[0018] Compared with the prior art, the utility model is provided with an air buffer chamber, an air outlet plate and a square air duct, so that air can enter the premixed combustion chamber from multiple directions and be fully mixed with the atomized alcohol fuel, and then ignite through a high-pressure ignition needle, so that the flame is blue in color and has a high temperature after being ejected, thereby greatly improving the combustion effect of the burner; in addition, a fire baffle is provided, which can press the flame in the center of the premixed combustion chamber to the surroundings, and the flame will not only eject from the center, but also eject from the surroundings of the flame stabilizing cover plate, thereby expanding the range of flame combustion, thereby greatly improving the efficiency of combustion heating and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the flame stabilizing cover plate of the utility model;
[0021] Figure 3 It is a schematic diagram of the air outlet plate of the utility model;
[0022] Figure 4 It is a schematic diagram of the bottom plate of the utility model;
[0023] Figure 5 It is a schematic diagram of the fire baffle of the utility model;
[0024] Figure 6 It is a schematic diagram of the air guide circular pipe of the utility model.
[0025] In the figure, 1. burner body; 2. high-pressure ignition needle; 3. atomizing nozzle; 4. flame stabilizing cover plate; 5. air buffer chamber; 6. premix combustion chamber; 7. fan; 8. fire baffle; 9. fire outlet; 10. bottom plate; 11. first air outlet; 12. air outlet plate; 13. square air duct; 14. second air outlet; 15. fourth air outlet; 16. air guide circular tube; 17. fifth air outlet; 18. high-pressure igniter; 19. electromagnetic pressure pump. DETAILED DESCRIPTION
[0026] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:
[0027] like Figure 1-6 As shown,
[0028] A square burner for premixing and burning liquid alcohol fuel and air in a combustion chamber, comprising a burner body 1, a high-pressure ignition needle 2, an atomizing nozzle 3 and a flame-stabilizing cover plate 4; the burner body 1 is respectively provided with a high-pressure ignition needle 2 and an atomizing nozzle 3; the open end of the burner body 1 is installed with a flame-stabilizing cover plate 4; the interior of the burner body 1 is also provided with an air buffer chamber 5 and a premixing combustion chamber 6, the air buffer chamber 5 and the premixing combustion chamber 6 are connected, and one end of the burner body 1 is also provided with a fan 7, the air outlet end of the fan 7 is connected with the air buffer chamber 5, the needle head of the high-pressure ignition needle 2 and the nozzle of the atomizing nozzle 3 are located inside the premixing combustion chamber 6, the interior of the premixing combustion chamber 6 is also provided with a fire baffle 8, and the flame-stabilizing cover plate 4 is provided with a fire outlet hole 9; in this embodiment, by providing the air buffer chamber 5, the air outlet plate 12 and the square air duct 13, the air can The air enters the premixed combustion chamber 6 from multiple directions and is fully mixed with the atomized alcohol fuel. After being ignited by the high-pressure ignition needle 2, the flame is blue in color and has a high temperature after being ejected, thereby greatly improving the combustion effect of the burner. In addition, a fire baffle 8 is provided, which can press the flame in the center of the premixed combustion chamber 6 to the surroundings. The flame will not only be ejected from the center, but also from the surroundings of the flame stabilizing cover plate 4 (because the air and the atomized alcohol fuel are fully mixed, the combustion intensity of the flame is further enhanced, and the blue flame ejected from the surroundings is still strong), thereby expanding the range of flame combustion, thereby greatly improving the efficiency of combustion and heating, and reducing energy consumption (in burners of the same specifications, compared with the traditional ejected flame and the current ejected flame, if the same container is used to boil water, the time can be shortened by more than one third using the burner of the utility model, thereby reducing energy consumption).
[0029] As a preferred embodiment, the burner body 1 is a rectangular structure. The purpose of this structural design is to cooperate with the structural setting of the fire baffle 8 so that the flame can finally be ejected in a square shape, the flame ejection effect is better, and the flame ejection range is larger.
[0030] As a preferred embodiment, the fire outlet hole 9 is a circular or elliptical structure; and in this embodiment, the fire outlet holes 9 are arranged alternately in horizontal and vertical structures, in order to further enhance the flame ejection effect.
[0031] As a preferred embodiment; the inner bottom of the burner body 1 is also provided with a bottom plate 10, and the bottom plate 10 is provided with a first air outlet 11, and the first air outlet 11 is a circular or square structure; the purpose of this structural design is to allow the gas to be evenly discharged into the air buffer chamber 5, and then to allow the gas to be more evenly discharged into the premixed combustion chamber 6.
[0032] As a preferred embodiment, the fan 7 is a blower, which is fixedly connected to the bottom of the burner body 1. The air outlet end of the burner body 1 is connected to the first air outlet 11, and the other end of the first air outlet 11 is connected to the air buffer chamber 5, so that the gas can be discharged into the air buffer chamber 5 more evenly.
[0033] As a preferred embodiment; an air outlet plate 12 and a square air duct 13 are also arranged between the air buffer chamber 5 and the premixed combustion chamber 6, the air outlet plate 12 and the square air duct 13 are connected, the air outlet plate 12 is provided with a second air outlet hole 14, the square air duct 13 is provided with a third air outlet hole, the air buffer chamber 5 is connected with the premixed combustion chamber 6 through the second air outlet hole 14 and the third air outlet hole, and the second air outlet hole 14 and the third air outlet hole are both circular or square structures; it can be understood that the air inside the air buffer chamber 5 can be discharged into the premixed combustion chamber 6 through the second air outlet hole 14 on the one hand, or discharged into the premixed combustion chamber 6 through several surfaces (several surfaces of the square air duct 13, multiple directions) of the third air outlet hole, so that the gas can quickly mix with the atomized alcohol fuel after entering the premixed combustion chamber 6.
[0034] As a preferred embodiment; the fire baffle 8 is fixedly connected to the bottom of the flame stabilizing cover plate 4 and is located in the middle of the premixing combustion chamber 6, and a fourth air outlet 15 is provided on the fire baffle 8, and the fourth air outlet 15 is a circular structure; it can be understood that the flame can be discharged through the fourth air outlet 15 and then the upper row through the fire outlet 9, and the flame can be sprayed at the center position. In addition, the flame pressed to the surroundings by the fire baffle 8 can be sprayed around the flame stabilizing cover plate 4, forming a square flame spraying, thereby improving the flame spraying effect.
[0035] As a preferred embodiment, the interior of the premixed combustion chamber 6 is also provided with an air guide tube 16, on which a fifth air outlet 17 is provided, and the fifth air outlet 17 is an elliptical structure; by providing the air guide tube 16, the mixing effect between the gas and the atomized alcohol fuel can be further improved.
[0036] As a preferred embodiment, the number of the air guide circular tubes 16 is four, and they are symmetrically arranged below the fire baffle 8 (corresponding to A|B|C|D in the figure), and the air guide circular tubes 16 are fixedly connected to the burner body 1; this position setting is more conducive to the mixing between the gas and the atomized alcohol fuel.
[0037] As a preferred embodiment; the burner also includes a high-pressure igniter 18 and an electromagnetic pressure pump 19, the high-pressure igniter 18 and the electromagnetic pressure pump 19 are respectively fixed to the burner body 1, the high-pressure igniter 18 is electrically connected to the high-pressure ignition needle 2, and the electromagnetic pressure pump 19 is connected to the atomizing nozzle 3 through a pipeline; the needle head of the high-pressure ignition needle 2 is arranged close to the nozzle of the atomizing nozzle 3; by providing the high-pressure igniter 18 and the electromagnetic pressure pump 19, the high-pressure igniter 18 can control the ignition of the high-pressure ignition needle 2, and the electromagnetic pressure pump 19 can pump liquid alcohol fuel into the atomizing nozzle 3, and finally spray out the atomizing gas; in addition, the needle head of the high-pressure ignition needle 2 is arranged close to the nozzle of the atomizing nozzle 3, which is conducive to the spark directly contacting the atomizing gas, and then the ignition operation can be achieved in one work, thereby improving the use effect of the burner.
[0038] The working principle of the utility model is as follows: when working, the liquid alcohol fuel is first pumped into the atomizing nozzle 3 through the electromagnetic pressure pump 19, and finally the atomized gas is ejected, then the fan 7 is started to send air into the air buffer chamber 5, and then the air is evenly discharged into the premixed combustion chamber 6 through the second air outlet 14 and the third air outlet, and is fully mixed with the atomized alcohol fuel, and then the high-pressure ignition needle 2 is started by the high-pressure igniter 18 to ignite the alcohol fuel. At this time, the flame will be discharged from the ignition hole 9. Due to the provision of the fire baffle 8, the flame at this time will be ejected from the surroundings of the flame stabilizing cover plate 4, and the ejected flame is a blue flame with a higher temperature, and the combustion efficiency can be greatly improved.
[0039] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.
Claims
1. A square burner for premixing liquid alcohol fuel and air in a combustion chamber, comprising a burner body, a high-pressure ignition needle, an atomizing nozzle and a flame stabilizing cover plate; the burner body is provided with a high-pressure ignition needle and an atomizing nozzle respectively; the open end of the burner body is provided with a flame stabilizing cover plate; characterized in that: An air buffer chamber and a premixing combustion chamber are also provided inside the burner body, and the air buffer chamber and the premixing combustion chamber are connected. A fan is also provided at one end of the burner body, and the air outlet end of the fan is connected to the air buffer chamber. The needle head of the high-pressure ignition needle and the nozzle of the atomizing nozzle are located inside the premixing combustion chamber. A fire baffle is also provided inside the premixing combustion chamber, and a fire outlet hole is provided on the flame stabilizing cover plate.
2. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 1, characterized in that: The burner body is a rectangular structure.
3. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 2, characterized in that: The fire outlet hole is a circular or elliptical structure.
4. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 3, characterized in that: The inner bottom of the burner body is also provided with a bottom plate, and the bottom plate is provided with a first air outlet hole, and the first air outlet hole is a circular or square structure.
5. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 4, characterized in that: The fan is a blower, which is fixed to the bottom or side of the burner body. The air outlet end of the burner body is connected to the first air outlet hole, and the other end of the first air outlet hole is connected to the air buffer chamber.
6. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 5, characterized in that: An air outlet plate and a square air duct are also arranged between the air buffer chamber and the premixed combustion chamber, the air outlet plate and the square air duct are connected, a second air outlet hole is arranged on the air outlet plate, a third air outlet hole is arranged on the square air duct, the air buffer chamber is connected with the premixed combustion chamber through the second air outlet hole and the third air outlet hole, and the second air outlet hole and the third air outlet hole are both circular or square structures.
7. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 6, characterized in that: The fire baffle is fixedly connected to the lower part of the flame stabilizing cover plate and is located in the middle of the premixing combustion chamber. The fire baffle is provided with a fourth air outlet hole, and the fourth air outlet hole is a circular structure.
8. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 7, characterized in that: An air guide circular tube is also provided inside the premixed combustion chamber, and a fifth air outlet hole is provided on the air guide circular tube, and the fifth air outlet hole is an elliptical structure.
9. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 8, characterized in that: The number of the air guide circular tubes is four and they are symmetrically arranged below the fire baffle. The air guide circular tubes are fixedly connected to the burner body.
10. A square burner for premixing liquid alcohol fuel and air in a combustion chamber according to claim 9, characterized in that: The burner also includes a high-pressure igniter and an electromagnetic pressure pump, which are respectively fixed to the burner body, the high-pressure igniter is electrically connected to the high-pressure ignition needle, and the electromagnetic pressure pump is connected to the atomizing nozzle through a pipeline; the needle head of the high-pressure ignition needle is arranged close to the nozzle of the atomizing nozzle.