Central kindling gas cooking range

Abstract

The utility model discloses a central kindling gas stove head, which relates to the technical field of gas stove heads and comprises an outer stove body and an inner stove body, the inner stove body is sleeved in the outer stove body, and a combustion chamber and a kindling chamber are arranged in the outer stove body from top to bottom; a ventilation sealing cover is arranged between the combustion chamber and the kindling chamber, and ventilation holes are formed in the ventilation sealing cover; an air inlet cylinder is arranged below the outer furnace body, a kindling device is arranged in the air inlet cylinder, and the upper end of the kindling device is upwards inserted into the kindling chamber; a fuel gas inlet bin is arranged on the periphery of the air inlet barrel in a surrounding mode, a fuel gas inlet main pipe is arranged on the fuel gas inlet bin, and the fuel gas inlet main pipe is communicated with the fuel gas inlet bin. A gas mixing bin is arranged between the outer furnace body and the inner furnace body. According to the utility model, the dangerous condition that gas is leaked to the outside without combustion after flameout can be avoided, and the safety coefficient of the furnace end in use is improved; and air and fuel gas can be premixed for multiple times, so that combustion is more uniform and sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stove heads, in particular to a central ignition gas stove head. Background Technique

[0002] In the existing gas stove heads, a common structure is shown in the publication number CN233146553U and the patent name "A Premixed Gas Stove Head with Anti-blocking, Durability and Easy Maintenance". Its flame tube is directly inserted into the combustion chamber, and the ignition needle and the detection probe are also arranged in the combustion chamber. During the ignition and combustion process of the stove, even if the gas supply in the flame tube has been closed, the detection probe in the combustion chamber can still detect the heat of the residual gas combustion, resulting in the inability to cut off the main gas intake supply in time, so that the fire has gone out but the gas will still leak out through the burner nozzle, bringing potential safety hazards. In addition, in the existing design of gas stove heads, there is also a problem that the air and gas are not evenly mixed during the gas supply process, resulting in insufficient combustion. Content of the Utility Model

[0003] The purpose of the utility model is to provide a central ignition gas stove head to solve the problems in the above background.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: A central ignition gas stove head includes an outer furnace body and an inner furnace body. The inner furnace body is sleeved in the outer furnace body. A combustion chamber and a kindling chamber are arranged in the outer furnace body from top to bottom; A breathable cover is arranged between the combustion chamber and the kindling chamber, and breathable holes are opened on the breathable cover;

[0005] An air inlet cylinder is arranged below the outer furnace body, and a kindler is arranged in the air inlet cylinder. The upper end of the kindler is inserted upward into the kindling chamber; A gas intake chamber is arranged around the outer circumference of the air inlet cylinder, and a main gas intake pipe is arranged on the gas intake chamber. The main gas intake pipe is communicated with the gas intake chamber; A mixing chamber is arranged between the outer furnace body and the inner furnace body;

[0006] A first mixing hole is opened on the side wall of the air inlet cylinder, and the air inlet cylinder is communicated with the gas intake chamber through the first mixing hole; A second mixing hole is arranged at the bottom of the outer furnace body, and the upper part of the air inlet cylinder is communicated with the mixing chamber through the second mixing hole; A mixed gas intake hole is opened on the side wall of the combustion chamber, and the combustion chamber is communicated with the mixing chamber through the mixed gas intake hole.

[0007] As a further scheme of the utility model: An igniter and a temperature induction probe are inserted and arranged in the kindling chamber.

[0008] As a further scheme of the utility model: One or more annular rectifying partitions are arranged in the mixing chamber, and rectifying through holes are evenly arranged on the rectifying partitions; The rectifying partitions divide the mixing chamber into two or more mixing chambers from bottom to top.

[0009] As a further solution of the utility model: an installation flange is arranged on the outer peripheral wall of the outer furnace body, and installation holes are opened on the installation flange.

[0010] As a further solution of the utility model: an air inlet support plate is installed on the inner wall of the lower end of the air inlet cylinder, and a plurality of air inlet through holes are opened on the air inlet support plate; the air inlet support plate is sleeved on the ignition device.

[0011] As a further solution of the utility model: the lower end of the air inlet cylinder is communicated with a blower.

[0012] As a further solution of the utility model: a gas inlet branch pipe is connected to the lower end of the ignition device; a main pipe switch solenoid valve is arranged on the gas inlet main pipe, and a branch pipe switch valve is arranged on the gas inlet branch pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. By arranging the breathable cover, the combustion chamber and the ignition chamber are separated, which can reduce the influence of the heat energy in the combustion chamber on the temperature induction probe when turning off the fire, so that the temperature induction probe can timely sense the sudden drop in temperature after turning off the fire and close the main pipe switch solenoid valve on the gas inlet main pipe, synchronously cutting off the gas supply while the flame in the combustion chamber goes out, minimizing the delay to the greatest extent, avoiding the dangerous situation that the gas leaks to the outside without combustion after the flameout, and improving the safety factor of the stove head.

[0015] 2. By arranging the annular rectifying partition plate, the air mixing chamber is divided into multiple air mixing chambers, so that air and gas pass through each air mixing chamber in turn, and are fully premixed under the rectifying and mixing action of the rectifying through holes, making the combustion more uniform and sufficient. Description of the drawings

[0016] Figure 1 is a structural schematic diagram of the utility model;

[0017] Figure 2 is a structural schematic diagram of the breathable cover of the utility model;

[0018] Figure 3 is a schematic diagram of the flow directions of air, gas and mixed gas of the utility model (hollow arrows are air flow indication arrows, solid arrows are gas flow indication arrows, and semi-hollow and semi-solid arrows are mixed gas flow indication arrows).

[0019] In the figure: 1. Combustion chamber; 2. Mixed gas inlet hole; 3. Vent cap; 4. Inner furnace body; 5. Outer furnace body; 6. Installation flange; 7. Installation hole; 8. Ignition chamber; 9. Igniter; 10. Air inlet tube; 11. Main gas inlet pipe; 12. Air inlet support plate; 13. Air inlet through hole; 14. Igniter; 15. Gas inlet branch pipe; 16. First mixing hole; 17. Rectifying partition; 18. Temperature induction probe; 19. Rectifying through hole; 20. Mixing chamber; 21. Second mixing hole; 22. Gas inlet chamber; 23. Vent hole. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , in the embodiment of the present invention, a central ignition gas stove head includes an outer furnace body 5 and an inner furnace body 4. The inner furnace body 4 is sleeved in the outer furnace body 5. A combustion chamber 1 and an ignition chamber 8 are arranged from top to bottom in the outer furnace body 5; a vent cap 3 is arranged between the combustion chamber 1 and the ignition chamber 8, and a vent hole 23 is opened on the vent cap 3.

[0022] An air inlet tube 10 is arranged below the outer furnace body 5, and an igniter 14 is arranged in the air inlet tube 10. The upper end of the igniter 14 is inserted upward into the ignition chamber 8; a gas inlet chamber 22 is arranged around the outer circumference of the air inlet tube 10. A main gas inlet pipe 11 is arranged on the gas inlet chamber 22, and the main gas inlet pipe 11 is communicated with the gas inlet chamber 22; a mixing chamber 20 is arranged between the outer furnace body 5 and the inner furnace body 4.

[0023] A first mixing hole 16 is opened on the side wall of the air inlet tube 10, and the air inlet tube 10 is communicated with the gas inlet chamber 22 through the first mixing hole 16; a second mixing hole 21 is arranged at the bottom of the outer furnace body 5, and the upper part of the air inlet tube 10 is communicated with the mixing chamber 20 through the second mixing hole 21; a mixed gas inlet hole 2 is opened on the side wall of the combustion chamber 1, and the combustion chamber 1 is communicated with the mixing chamber 20 through the mixed gas inlet hole 2.

[0024] An igniter 9 and a temperature induction probe 18 are inserted and arranged in the ignition chamber 8.

[0025] Two annular rectifying partition plates 17 are arranged in the gas mixing chamber 20, and rectifying through holes 19 are evenly formed in the rectifying partition plates 17; the two rectifying partition plates 17 divide the gas mixing chamber 20 from bottom to top into a first gas mixing chamber 201, a second gas mixing chamber and a third gas mixing chamber 203, and the first gas mixing chamber 201, the second gas mixing chamber and the third gas mixing chamber 203 are communicated through the rectifying through holes 19 in the rectifying partition plates 17.

[0026] An installation flange 6 is arranged on the outer peripheral wall of the outer furnace body 5, and installation holes 7 are formed in the installation flange 6.

[0027] An air inlet support plate 12 is installed on the inner wall of the lower end of the air inlet cylinder 10, and a plurality of air inlet through holes 13 are formed in the air inlet support plate 12; the air inlet support plate 12 is sleeved on the ignition device 14.

[0028] The lower end of the air inlet cylinder 10 is communicated with a blower.

[0029] The lower end of the ignition device 14 is connected with a gas inlet branch pipe 15; a main pipe switch solenoid valve is arranged on the gas inlet main pipe 11, and a branch pipe switch valve is arranged on the gas inlet branch pipe 15.

[0030] As Figure 2 shown, the working principle of the central ignition gas stove head of the present utility model is as follows:

[0031] Let gas enter the gas inlet main pipe 11 and the gas inlet branch pipe 15 respectively. At the same time, start the blower to make air enter the air inlet cylinder 10; wherein, the gas in the gas inlet main pipe 11 enters the gas inlet chamber 22, and then enters the air inlet cylinder 10 through the first gas mixing hole 16. The air in the air inlet cylinder 10 is premixed with the entering gas for the first time; the mixed gas after the first premixing passes through the second gas mixing hole 21 and enters the lower part of the gas mixing chamber 20. The mixed gas in the gas mixing chamber 20 passes through the rectifying through holes 19 in the rectifying partition plate 17 from bottom to top, and after mixing and sorting, full mixing is realized. The uniformly mixed mixed gas enters the combustion chamber 1 through the mixed gas inlet hole 2.

[0032] At the same time, the gas in the gas inlet branch pipe 15 enters the ignition chamber 8 along the ignition device 14. Start the igniter 9 to make the gas in the ignition chamber 8 burn, and ignite the mixed gas in the combustion chamber 1 through the ventilation holes 23 on the ventilation cover 3, so as to achieve the purpose of starting the combustion operation of the stove head.

[0033] When the burner needs to be extinguished, first close the branch pipe switch valve. At this time, the gas supply in the ignition chamber 8 stops, causing the igniter 14 to extinguish first and a significant temperature drop occurs. At this time, the temperature induction probe 18 detects the temperature change in real time and controls the main pipe switch solenoid valve on the main gas inlet pipe 11 to close the gas supply, so that the flame in the combustion chamber 1 is extinguished while simultaneously cutting off the gas supply, minimizing the delay and avoiding the dangerous situation of gas leaking to the outside without combustion after extinguishing.

[0034] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A center-fire gas stove head, comprising an outer furnace body (5) and an inner furnace body (4), characterized in that: The inner furnace body (4) is mounted in the outer furnace body (5), and a combustion chamber (1) and a fire chamber (8) are arranged from top to bottom in the outer furnace body (5); a breathable sealing cover (3) is arranged between the combustion chamber (1) and the fire chamber (8), and a breathable hole (23) is provided on the breathable sealing cover (3); An air inlet cylinder (10) is arranged below the outer furnace body (5), a fire starter (14) is arranged inside the air inlet cylinder (10), and the upper end of the fire starter (14) is inserted upward into the fire starter chamber (8); a gas inlet bin (22) is arranged around the outer periphery of the air inlet cylinder (10), a gas inlet main pipe (11) is arranged on the gas inlet bin (22), and the gas inlet main pipe (11) is connected to the gas inlet bin (22); a gas mixing bin (20) is arranged between the outer furnace body (5) and the inner furnace body (4); A first gas mixing hole (16) is provided on the side wall of the air inlet cylinder (10), and the air inlet cylinder (10) is connected to the gas inlet bin (22) through the first gas mixing hole (16); a second gas mixing hole (21) is provided at the bottom of the outer furnace body (5), and the upper part of the air inlet cylinder (10) is connected to the gas mixing bin (20) through the second gas mixing hole (21); and a mixed gas inlet hole (2) is provided on the side wall of the combustion chamber (1), and the combustion chamber (1) is connected to the mixed gas inlet bin (20) through the mixed gas inlet hole (2).

2. The center-ignition gas stove head according to claim 1, characterized in that: An igniter (9) and a temperature sensing probe (18) are installed in the fire chamber (8).

3. The center-ignition gas stove head according to claim 1, characterized in that: One or more annular rectifying baffles (17) are arranged in the gas mixing chamber (20), and rectifying holes (19) are evenly distributed on the rectifying baffles (17); the rectifying baffles (17) divide the gas mixing chamber (20) into two or more gas mixing chambers from bottom to top.

4. The center-ignition gas stove head according to claim 1, characterized in that: A mounting flange (6) is provided on the outer peripheral wall of the outer furnace body (5), and a mounting hole (7) is provided on the mounting flange (6).

5. The center-ignition gas stove head according to claim 1, characterized in that: An air intake support plate (12) is installed on the inner wall of the lower end of the air intake cylinder (10), and a plurality of air intake through holes (13) are provided on the air intake support plate (12); the air intake support plate (12) is sleeved on the fire starter (14).

6. The center-ignition gas stove head according to claim 1, characterized in that: The lower end of the air inlet cylinder (10) is connected to the blower.

7. The center-ignition gas stove head according to claim 1, characterized in that: The lower end of the igniter (14) is connected to a gas intake branch pipe (15); a main pipe switch solenoid valve is provided on the gas intake main pipe (11), and a branch pipe switch valve is provided on the gas intake branch pipe (15).

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