Windproof energy-saving gas furnace

Abstract

The utility model relates to stove equipment, in particular to a windproof energy-saving gas stove. The gas stove is characterized by comprising a hearth (1) and a gas burner (2), the hearth (1) is provided with a hearth side wall (1-1) and an inner cavity (1-2); the gas burner (2) is provided with a plurality of fire holes (2-1), and the fire holes (2-1) are formed in the inner cavity (1-2) and above the hearth bottom wall (1-3); a cooking opening (3) is formed in the upper part of the inner cavity (1-2); the hearth (1) is provided with at least one air inlet (4); and the hearth (1) is provided with at least one smoke outlet (5). The windproof energy-saving gas stove has the positive significance that the work of the gas burner can be ensured not to be influenced by the wind speed of the use environment, and the cooking effect is good; meanwhile, heat energy generated by combustion can be fully and effectively utilized, heat efficiency is improved, and energy is saved.

Description

Technical Field

[0001] This utility model relates to a stove device, and more particularly to a windproof and energy-saving gas stove. Background Technology

[0002] Existing gas stoves include a gas burner with flame holes. After the gas is ejected from the flame holes, it reacts with oxygen in the air to release heat energy, which directly or indirectly heats the food.

[0003] Existing gas stoves, when in use, generate heat by burning gas in an open or semi-enclosed space to heat the food being cooked above the gas burner. They have the following significant drawbacks:

[0004] First, the wind blows directly onto the burner hole, causing the gas ejected from the burner hole to be blown away from the correct position, resulting in unstable combustion and abnormal combustion.

[0005] Secondly, the flames are easily blown away from the food being cooked, resulting in poor cooking results;

[0006] Third, the burner loses a lot of heat energy due to radiation in all directions, resulting in low thermal efficiency of the stove.

[0007] Fourth, the high-temperature flue gas generated by the burner is quickly dissipated into the surrounding environment, taking away a lot of heat energy, resulting in low thermal efficiency of the stove. Utility Model Content

[0008] To improve upon the shortcomings of existing gas-fired stoves, such as poor wind resistance and low thermal efficiency, this utility model provides a windproof and energy-saving gas-fired stove, characterized by:

[0009] Including the furnace and gas burner;

[0010] The furnace chamber includes a furnace sidewall and an inner cavity; the furnace sidewall is enclosed in a closed cylindrical shape, and the internal space enclosed by the furnace sidewall is the inner cavity; a furnace bottom wall is provided below the inner cavity;

[0011] The gas burner is provided with a number of flame holes, and the gas ejected from the flame holes and the oxygen in the air near the flame holes participate in combustion to release heat energy.

[0012] The flame holes are located inside the inner cavity. When the gas ejected from the flame holes burns, it will not be affected by the wind, or the wind will have a sufficiently small impact. At the same time, the heat generated by combustion is concentrated in the inner cavity and is not easily dissipated. The food being cooked in the inner cavity is more likely to absorb more heat and improve thermal efficiency.

[0013] To ensure that the gas burner burns normally inside the inner cavity, fresh air needs to be continuously supplied to the inner cavity to the vicinity of the fire hole. Therefore, the furnace is provided with at least one air inlet, and the total area of ​​the air inlet is matched with the heat load of the gas burner.

[0014] To ensure that the gas burner burns normally inside the inner cavity, the flue gas generated by combustion also needs to be discharged from the inner cavity. Therefore, the furnace is provided with at least one flue gas outlet, and the total area of ​​the flue gas outlet is matched with the heat load of the gas burner.

[0015] During cooking, the high-temperature fumes will rise naturally;

[0016] To prevent the flue gas from mixing with fresh air and thus reducing the oxygen content of the air participating in combustion, the air inlet is located below the flame hole, and the flue gas outlet is located above the flame hole.

[0017] The air inlet can be located either to the side or below the flame hole, or vertically below the flame hole, which can better replenish air.

[0018] Experiments have shown that the greater the vertical distance between the air inlet and the flame hole, the less the gas ejected from the flame hole is affected by the wind speed. Correspondingly, the greater the vertical distance between the air inlet and the flame hole, the greater the height of the windproof and energy-saving gas furnace provided by this utility model.

[0019] In order to ensure that the windproof and energy-saving gas stove provided by this utility model maintains a suitable size, the vertical distance H1 between the highest point of the air inlet and the lowest point of the fire hole is greater than 5 mm and less than 500 mm.

[0020] When the number of air inlets is greater than 1, the air inlets are arranged circumferentially to ensure that fresh air and the gas ejected from the burner holes can be in uniform and sufficient contact for combustion.

[0021] The exhaust port can be located on the side above the flame hole or vertically above the flame hole, both of which can effectively exhaust the smoke.

[0022] Experiments have shown that the greater the vertical distance between the exhaust port and the fire hole, the higher the heat absorption rate of the windproof and energy-saving gas furnace provided by this utility model in high-temperature flue gas. Correspondingly, the greater the vertical distance between the exhaust port and the fire hole, the greater the height of the windproof and energy-saving gas furnace provided by this utility model.

[0023] In order to ensure that the windproof and energy-saving gas stove provided by this utility model maintains a suitable size, the vertical distance H2 between the lowest point of the flue gas outlet and the highest point of the fire hole is greater than 20 mm and less than 1000 mm.

[0024] When the number of exhaust ports is greater than 1, the exhaust ports are arranged circumferentially to ensure that the flue gas generated by combustion is discharged smoothly without affecting the combustion effect.

[0025] A cooking port is provided above the inner cavity; through the cooking port, food can be easily placed into the inner cavity for heating; or, the heat energy in the inner cavity can reach the food placed above the cooking port through the cooking port.

[0026] The flue gas discharged from the inner cavity is at a high temperature and carries a lot of heat energy. In order to further utilize this heat energy, an insulation wall is installed.

[0027] The insulation wall is located on the outside of the furnace sidewall, and a gap is provided between the insulation wall and the furnace sidewall. The gap is greater than 3 mm and less than 150 mm, and the gap forms a flue gas channel. A flue gas channel outlet is provided below the flue gas channel.

[0028] The upper part of the smoke exhaust channel is closed and connected to the smoke exhaust outlet;

[0029] The high-temperature flue gas inside the inner cavity enters the flue gas passage through the flue gas outlet, and is discharged from the gas-fired energy-saving stove through the flue gas passage outlet below;

[0030] The insulation wall can block the furnace sidewall from radiating heat energy to the surrounding environment.

[0031] As the high-temperature flue gas passes through its respective exhaust channel and is then discharged through the exhaust port, it continues to transfer heat energy to the side wall of the furnace, maintaining or further increasing the temperature of the inner cavity.

[0032] A constriction is provided below the smoke exhaust channel, and the cross-sectional area of ​​the smoke exhaust channel becomes smaller at the constriction.

[0033] The cross-sectional area at the constricted section is matched with the heat load of the gas burner, which can control the discharge speed of high-temperature flue gas, ensuring that the flue gas in the inner cavity is discharged smoothly and that the high-temperature flue gas has enough time to exchange heat with the furnace side wall.

[0034] For ease of use, the windproof and energy-saving gas stove provided by this utility model is also equipped with several foldable support legs.

[0035] The positive significance of the windproof and energy-saving gas stove provided by this utility model is that it can ensure that the operation of the gas burner is not affected by the wind speed in the environment, resulting in good cooking effect; at the same time, it can fully and effectively utilize the heat energy generated by combustion, improve thermal efficiency, and save energy. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the appearance of a certain direction in Embodiment 1 of the present invention.

[0037] Figure 2 This is a cross-sectional schematic diagram of Embodiment 1 of the present invention.

[0038] Figure 3 This is a schematic diagram of the appearance of a certain direction in Embodiment 2 of the present invention.

[0039] Figure 4 This is a schematic diagram of the appearance from another direction of Embodiment 2 of the present invention.

[0040] Figure 5 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention.

[0041] Explanation of the labels in the diagram:

[0042] 1: Furnace chamber;

[0043] 1-1: Furnace sidewall;

[0044] 1-2: Inner cavity;

[0045] 1-3: Bottom wall of the furnace;

[0046] 2: Gas burner;

[0047] 2-1: Fire hole;

[0048] 3: Cooking port;

[0049] 4: Air inlet;

[0050] 5: Smoke exhaust port;

[0051] 6: Insulated wall;

[0052] 6-1: Narrowing section

[0053] 7: Smoke exhaust duct;

[0054] 7-1: Exit of smoke exhaust duct;

[0055] 8: Support feet;

[0056] H1: The vertical distance between the highest point of the air inlet and the lowest point of the fire hole;

[0057] H2: The vertical distance between the lowest point of the smoke exhaust port and the highest point of the fire hole. Detailed Implementation

[0058] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0059] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0060] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0061] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0062] like Figures 1-2 The following is an embodiment 1 of the present invention.

[0063] Includes furnace (1) and gas burner (2);

[0064] The furnace chamber (1) is provided with a furnace chamber side wall (1-1) and an inner cavity (1-2). The furnace chamber side wall (1-1) is enclosed in a closed cylindrical shape, and the internal space enclosed by the furnace chamber side wall (1-1) is the inner cavity (1-2). A cooking port (3) is provided at the upper part of the inner cavity (1-2).

[0065] The gas burner (2) is provided with several flame holes (2-1); the flame holes (2-1) are located inside the inner cavity (1-2).

[0066] The furnace (1) is provided with 8 air inlets (4), which are evenly distributed around the circumference, and the total area of ​​the air inlets (4) is matched with the heat load of the gas burner (2);

[0067] The air inlet (4) is located on the furnace sidewall (1-1) below the side of the fire hole (2-1);

[0068] The vertical distance (H1) between the highest point of the air inlet (4) and the lowest point of the fire hole (2-1) is 60 mm.

[0069] The furnace (1) is provided with 8 exhaust ports (5), which are arranged circumferentially, and the total area of ​​the exhaust ports (5) is matched with the heat load of the gas burner (2);

[0070] The flue gas outlet (5) is located on the side wall (1-1) of the furnace above the fire hole (2-1); the vertical distance (H2) between the lowest point of the flue gas outlet (5) and the highest point of the fire hole (2-1) is 300 mm.

[0071] It also features three foldable support legs (8). Example 2

[0072] like Figures 3-5 The following is an embodiment 2 of the present invention.

[0073] Includes furnace (1) and gas burner (2);

[0074] The furnace (1) is provided with a furnace sidewall (1-1) and an inner cavity (1-2).

[0075] The furnace sidewall (1-1) is enclosed into a closed cylindrical shape, and the internal space enclosed by the furnace sidewall (1-1) is the inner cavity (1-2).

[0076] The inner cavity (1-2) is provided with a furnace bottom wall (1-3) below it.

[0077] The gas burner (2) is provided with several flame holes (2-1);

[0078] The fire hole (2-1) is located inside the inner cavity (1-2) and above the bottom wall (1-3) of the furnace.

[0079] A cooking port (3) is provided at the upper part of the inner cavity (1-2).

[0080] The furnace (1) is provided with 8 air inlets (4), which are evenly distributed around the circumference, and the total area of ​​the air inlets (4) is matched with the heat load of the gas burner (2);

[0081] The air inlet (4) is located on the bottom wall (1-3) of the furnace below the fire hole (2-1);

[0082] The vertical distance (H1) between the highest point of the air inlet (4) and the lowest point of the fire hole (2-1) is 60 mm.

[0083] The furnace (1) is provided with 8 exhaust ports (5), which are arranged circumferentially, and the total area of ​​the exhaust ports (5) is matched with the heat load of the gas burner (2).

[0084] The flue gas outlet (5) is located on the side wall (1-1) of the furnace above the fire hole (2-1);

[0085] The vertical distance (H2) between the lowest point of the smoke outlet (5) and the highest point of the fire hole (2-1) is 300 mm.

[0086] An insulation wall (6) is provided on the outside of the furnace sidewall (1-1), and a gap of 20 mm is provided between the insulation wall (6) and the furnace sidewall (1-1), which forms a flue gas passage (7).

[0087] The exhaust channel (7) is provided with an exhaust channel outlet (7-1) at its lower part; the exhaust channel (7) is closed at the top and connected to the exhaust port (5);

[0088] A constriction section (6-1) is provided below the exhaust duct. At the constriction section (6-1), the cross-sectional area of ​​the exhaust duct (7) becomes smaller, and the specific cross-sectional area is matched with the heat load of the gas burner (2).

[0089] It also features three foldable support legs (8).

Claims

1. A windproof and energy-saving gas stove, characterized in that: Includes furnace (1) and gas burner (2); The furnace (1) is provided with a furnace sidewall (1-1) and an inner cavity (1-2). The furnace sidewall (1-1) is enclosed in a closed cylindrical shape, and the internal space enclosed by the furnace sidewall (1-1) is the inner cavity (1-2). The furnace bottom wall (1-3) is provided below the inner cavity (1-2). The gas burner (2) is provided with a plurality of flame holes (2-1), which are located inside the inner cavity (1-2); A cooking port (3) is provided at the upper part of the inner cavity (1-2); The furnace (1) is provided with at least one air inlet (4), and the total area of ​​the air inlet (4) is matched with the heat load of the gas burner (2); The furnace (1) is provided with at least one flue gas outlet (5), and the total area of ​​the flue gas outlet (5) is matched with the heat load of the gas burner (2).

2. The windproof and energy-saving gas stove according to claim 1, characterized in that: The air inlet (4) is located below the fire hole (2-1), and / or the air inlet (4) is located on the side below the fire hole (2-1); The specific location of the air inlet (4) includes, but is not limited to: being located on the side wall (1-1) of the furnace, and / or, being located on the bottom wall (1-3) of the furnace; The vertical distance (H1) between the highest point of the air inlet (4) and the lowest point of the fire hole (2-1) is greater than 5 mm and less than 500 mm.

3. The windproof and energy-saving gas stove according to claim 2, characterized in that: The smoke exhaust port (5) is located above the fire hole (2-1), and / or the smoke exhaust port (5) is located above the side of the fire hole (2-1); The specific location of the flue gas outlet (5) includes, but is not limited to, the furnace side wall (1-1); The vertical distance (H2) between the lowest point of the smoke exhaust port (5) and the highest point of the fire hole (2-1) is greater than 20mm and less than 1000mm.

4. The windproof and energy-saving gas stove according to claim 3, characterized in that: When the number of air inlets (4) is greater than 1, the air inlets (4) are arranged circumferentially; And / or, when the number of the exhaust ports (5) is greater than 1, the exhaust ports (5) are arranged circumferentially.

5. The windproof and energy-saving gas stove according to claim 4, characterized in that: An insulation wall (6) is provided on the outside of the furnace sidewall (1-1). A gap is provided between the insulation wall (6) and the furnace sidewall (1-1). The gap is greater than 3 mm and less than 150 mm, and the gap forms a flue gas passage (7). The exhaust channel (7) is provided with an exhaust channel outlet (7-1) at its lower part; the exhaust channel (7) is closed at the top and connected to the exhaust port (5); A constriction section (6-1) is provided on the insulation wall (6) near the smoke exhaust channel outlet (7-1). At the position of the necking portion (6-1), the sectional area of the flue gas passage (7) is reduced, and the specific sectional area is matched with the heat load of the gas burner (2).

6. The windproof energy-saving gas stove according to any one of claims 4 or 5, characterized in that: A plurality of foldable supporting legs (8) are arranged.

Images