Fuel gas injection device with stable power
By designing the air chamber and communication hole in the burner for cold air blowing and heat exchange, combining the blower and the insulating chamber, the power reduction problem caused by the gas nozzle due to high temperature is solved, and the power stability of the burner is achieved.
Patent Information
- Application Number
- CN202420212286.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-29
AI Technical Summary
In the traditional burner structure, the gas nozzle has a thermal expansion and contraction effect due to a long-term high temperature state, resulting in a smaller gas cross-sectional flow and a lower power.
Design a power-stable gas injection device, by setting air chambers and communication holes in the premixed disk, using cold air to blow to the gas nozzle through the communication holes for heat exchange, reducing the gas nozzle temperature, and passing through the blower and heat insulation The cavity further prevents heat transfer, combining the adjustable gas pipe and anti-slip section to ensure the stability of the gas nozzle.
Effectively reduce the temperature of the gas nozzle, prevent the flow rate from becoming smaller, keep the burner power stable, and avoid the reduction of gas injection pressure caused by high temperatures.
Smart Images
Figure CN222230543U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stove burners, in particular to a gas injection device with stable power. Background Art
[0002] During the use of household burners, the entire burner is in a high temperature state. In the traditional burner structure, the air entering the premixing structure can only be directly used for premixing. The incoming air belongs to natural convection, and most of it is used for premixing. It cannot perform good heat exchange and heat dissipation on the nozzle temperature. The gas nozzle is responsible for spraying gas, but because the temperature of the burner is easily transferred to the gas nozzle, the gas nozzle becomes high temperature with long-term use, causing the gas nozzle to experience thermal expansion and contraction effects, which reduces the gas cross-sectional flow rate, thereby reducing the burner power. Utility Model Content
[0003] In order to overcome the defects of the prior art, the utility model provides a gas injection device with stable power to solve the problems in the prior art.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a gas injection device with stable power, including a premixing disk, an air cavity is arranged in the premixing disk, a burner is suspended at the center of the premixing disk, the outer wall of the burner and the premixing disk are combined to form a premixing cavity, a gas nozzle is arranged in the premixing cavity, a premixing air inlet is arranged on the burner, the gas nozzle corresponds to the premixing air inlet, the inner wall of the air cavity is provided with a connecting hole connected to the premixing cavity, the premixing air inlet is located in the premixing cavity, and the connecting hole corresponds to the gas nozzle.
[0005] The beneficial effect of the utility model lies in that, during the process of inflating the premixing chamber through the air cavity, since the cold air is continuously blown toward the gas nozzle through the connecting hole and then enters the premixing air inlet to be premixed with the injected gas, part of the air is premixed and burned, and part of the air is heat exchanged with the high temperature at the gas nozzle, thereby reducing the temperature at the gas nozzle, preventing the gas cross-sectional flow rate from becoming smaller, making the gas nozzle change less and the power stable.
[0006] In the above-mentioned gas injection device with stable power, the gas cavity is an annular cavity, and a blower is arranged in the gas cavity.
[0007] After adopting the above further structure, the air cavity is blown by the blower fan, so that the air in the air cavity is continuously blown from the connecting hole to the gas nozzle, thereby preventing the gas nozzle from having a high temperature during use.
[0008] In the above-mentioned stable-power gas injection device, a bottom plate is provided at the lower end of the premixing disk, a gas pipe is installed in the bottom plate, a gas inlet is provided at the lower end of the gas pipe, the gas nozzle is adjustably installed at the upper end of the gas pipe, and the gas inlet is located on the outer side of the lower end of the bottom plate.
[0009] After adopting the above-mentioned further structure, the gas pipe is passed through the bottom plate, so that the gas pipe body does not contact the premixing disk and the burner, further preventing heat from being transferred to the gas pipe.
[0010] In the above-mentioned gas injection device with stable power, the gas nozzle includes an anti-slip section, one end of the anti-slip section is provided with a first threaded section, and the other end is provided with a second threaded section, the first threaded section is threadedly connected to the upper end of the gas pipe, and the end face of the second threaded section is provided with an air outlet, and the air outlet is connected to the gas pipe.
[0011] After adopting the above-mentioned further structure, the first threaded section can be telescopically adjusted in the gas pipe by rotating the anti-slip section, so that the distance between the gas outlet and the premixed air inlet can be adjusted, so that the gas can be better sprayed into the premixed air inlet, and the second threaded section can also be used to further increase nozzle accessories, which is more flexible to use.
[0012] In the above-mentioned gas injection device with stable power, a support ring is arranged above the gas cavity, and a heat-insulating cavity is formed between the support ring and the gas cavity.
[0013] With the above further structure, the heat insulation cavity can prevent a large amount of heat from being transferred to the premixing disk and increasing the air temperature of the air cavity, thereby preventing the gas nozzle from heating up due to the generation of hot air. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic cross-sectional structure diagram of the gas injection device of the present utility model.
[0015] Figure 2 It is a schematic diagram of the air flow state of the gas injection device of the utility model.
[0016] Figure 3 This is one of the three-dimensional structural schematic diagrams of the gas nozzle.
[0017] Figure 4 This is the second schematic diagram of the three-dimensional structure of the gas nozzle.
[0018] In the figure: bottom plate 1, premixing disk 2, premixing chamber 3, air chamber 4, burner 5, connecting hole 6, gas pipe 7, gas inlet 8, gas nozzle 9, premixing air inlet 10, insulation chamber 11, support ring 12, blower fan 13, anti-slip section 14, first threaded section 15, second threaded section 16, air outlet 17. DETAILED DESCRIPTION
[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0020] Combination Figure 1 and Figure 2 A gas injection device with stable power is shown, comprising a premixing disk 2, an air cavity 4 is arranged in the premixing disk 2, a burner 5 is suspended at the center of the premixing disk 2, the outer wall of the burner 5 and the premixing disk 2 are enclosed to form a premixing cavity 3, a gas nozzle 9 is arranged in the premixing cavity 3, a premixing air inlet 10 is arranged on the burner 5, the gas nozzle 9 corresponds to the premixing air inlet 10, the inner wall of the air cavity 4 is provided with a connecting hole 6 connected to the premixing cavity 3, the premixing air inlet 10 is located in the premixing cavity 3, and the connecting hole 6 corresponds to the gas nozzle 9; in the process of blowing air into the premixing cavity 3 through the air cavity 4 in this embodiment, since cold air is continuously blown to the gas nozzle 9 through the connecting hole 6, and then enters the premixing air inlet 10 to be premixed with the injected gas, part of the air is premixed and burned, and part of the air is heat exchanged with the high temperature at the gas nozzle 9, thereby reducing the temperature at the gas nozzle 9 and preventing the gas cross-sectional flow from becoming smaller, so that the gas nozzle 9 has a small change and stable power.
[0021] This prevents the gas injection pressure of the gas nozzle 9 from decreasing due to high temperature, thereby stabilizing the power of the burner.
[0022] The air cavity 4 of this embodiment is an annular cavity, and a blower fan 13 is provided in the air cavity 4; the air cavity 4 is blown by the blower fan 13, so that the air in the air cavity 4 is continuously blown from the connecting hole 6 to the gas nozzle 9, thereby preventing the gas nozzle 9 from reaching high temperature during use.
[0023] In this embodiment, a bottom plate 1 is provided at the lower end of the premixing disk 2, a gas pipe 7 is installed in the bottom plate 1, a gas inlet 8 is provided at the lower end of the gas pipe 7, a gas nozzle 9 is adjustably installed at the upper end of the gas pipe 7, and the gas inlet 8 is located on the outer side of the lower end of the bottom plate 1; the gas pipe 7 is inserted into the bottom plate 1, so that the gas pipe 7 body does not contact the premixing disk 2 and the burner 5, further preventing heat from being transferred to the gas pipe 7.
[0024] Among them, the gas nozzle 9 of this embodiment includes an anti-slip section 14, a first threaded section 15 is provided at one end of the anti-slip section 14, and a second threaded section 16 is provided at the other end. The first threaded section 15 is threadedly connected to the upper end of the gas pipe 7, and the end face of the second threaded section 16 is provided with an air outlet 17, and the air outlet 17 is connected to the gas pipe 7; the anti-slip section 14 can be rotated to allow the first threaded section 15 to be telescopically adjusted in the gas pipe 7, so that the distance between the air outlet 17 and the premixed air inlet 10 can be adjusted, so that the gas can be better sprayed into the premixed air inlet 10, and the second threaded section 16 can also be used to further increase nozzle accessories, which is more flexible to use.
[0025] It is also worth mentioning that a support ring 12 is provided above the air cavity 4 of the present embodiment, and a heat-insulating cavity 11 is formed between the support ring 12 and the air cavity 4; the heat-insulating cavity 11 can prevent a large amount of heat from being transferred to the premixing disk 2 to increase the air temperature of the air cavity 4, and prevent the gas nozzle 9 from being heated up due to the generation of hot air.
[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.
Claims
1. A gas injection device with stable power, comprising a premixing disk (2), characterized in that: An air cavity (4) is provided in the premixing disk (2), a burner (5) is suspended at the center of the premixing disk (2), the outer wall of the burner (5) and the premixing disk (2) enclose a premixing cavity (3), a gas nozzle (9) is provided in the premixing cavity (3), a premixing air inlet (10) is provided on the burner (5), the gas nozzle (9) corresponds to the premixing air inlet (10), and a connecting hole (6) connected to the premixing cavity (3) is provided on the inner wall of the air cavity (4), the premixing air inlet (10) is located in the premixing cavity (3), and the connecting hole (6) corresponds to the gas nozzle (9).
2. A gas injection device with stable power according to claim 1, characterized in that: The air cavity (4) is an annular cavity, and an air blower (13) is provided in the air cavity (4).
3. A gas injection device with stable power according to claim 2, characterized in that: A bottom plate (1) is provided at the lower end of the premixing disk (2), a gas pipe (7) is installed in the bottom plate (1), a gas inlet (8) is provided at the lower end of the gas pipe (7), the gas nozzle (9) is adjustably installed at the upper end of the gas pipe (7), and the gas inlet (8) is located outside the lower end of the bottom plate (1).
4. A gas injection device with stable power according to claim 3, characterized in that: The gas nozzle (9) comprises an anti-slip section (14), one end of the anti-slip section (14) is provided with a first threaded section (15), and the other end of the anti-slip section (14) is provided with a second threaded section (16), the first threaded section (15) is threadedly connected to the upper end of the gas pipe (7), and the end surface of the second threaded section (16) is provided with an air outlet (17), and the air outlet (17) is connected to the gas pipe (7).
5. A gas injection device with stable power according to claim 2, characterized in that: A support ring (12) is provided above the air cavity (4), and a heat-insulating cavity (11) is formed between the support ring (12) and the air cavity (4).