A full upper air inlet stove head

Abstract

This invention relates to a fully top-intake burner head, comprising a base and a flame distribution seat. The base has an injector tube and a premixing chamber. The flame distribution seat has an air inlet and a flame distribution chamber. The burner head also includes a transfer seat located between the base and the flame distribution seat. The transfer seat has an air inlet section and a premixed air outlet section. The injector tube, premixing chamber, premixed air outlet section, air inlet, and flame distribution chamber are sequentially connected to form a mixed gas delivery channel. A cleaning base plate is provided on the side of the flame distribution seat facing the transfer seat. A first air inlet chamber is provided between the cleaning base plate and the transfer seat. The first air inlet chamber, air inlet section, and injector tube are sequentially connected to form a first air inlet channel. The cleaning plate can prevent water accumulated above the burner head from directly entering the bottom of the burner head, achieving a cleaning effect. At the same time, air can enter the injector tube body through the first air inlet channel, eliminating the need for an additional air inlet structure on the bottom shell of the gas stove where the burner head is located.

Description

Technical Field

[0001] The present invention relates to the technical field of gas equipment, and in particular to a full upper air inlet burner head. Background Art

[0002] Existing burner air intake methods are generally divided into top intake, bottom intake, or a combination of the two. Top intake refers to air entering the burner from an air inlet located above the burner corresponding to the gas stove. Air enters the burner from the air inlet and mixes with the gas before being burned. For example, the air inlet can be located outside the burner's flame distributor. Bottom intake refers to air entering the bottom shell of the gas stove and, under the action of negative pressure from the ejector tube, enters the ejector tube, mixes with the gas, and then enters the flame distributor for combustion.

[0003] Since the air enters the burner directly from the top of the gas stove, a cleaning plate can be set at the bottom of the burner to prevent impurities such as accumulated water from entering the gas stove from the burner, thereby achieving a cleaning effect. However, the air intake of the upper air intake alone is generally not enough, which affects the combustion effect.

[0004] Downward air intake generally requires a hole in the bottom shell of the gas stove or a vertical through-groove structure to be opened on the burner. The method of opening a hole in the bottom shell of the gas stove will affect the structural strength of the gas stove, increase the difficulty of processing, and it is not aesthetically pleasing. If a vertical through-groove structure is opened on the burner, impurities such as accumulated water can easily enter the gas stove through the burner, making it impossible to achieve the cleaning effect of the gas stove.

[0005] Therefore, further improvement is needed. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a full upper air inlet burner head, aiming to solve at least one of the above technical problems in the prior art to a certain extent.

[0007] The object of the present invention is achieved like this:

[0008] A full top air inlet burner, comprising a base and a fire distributor seat, the base being provided with an ejector pipe for ejecting gas, a premixing chamber for combining gas and air into a mixed gas and connected to the ejector pipe, the fire distributor seat being provided with an air inlet for inputting the mixed gas, a fire distributor chamber for diverting the mixed gas and connected to the air inlet, the burner also comprising an adapter seat between the base and the fire distributor seat, the adapter seat being provided with an air inlet portion and a premixing air outlet portion; the ejector pipe, the premixing chamber, the premixing air outlet portion, the air inlet port and the fire distributor chamber being connected in sequence to form a mixed gas delivery channel; a cleaning plate being provided on the side of the fire distributor seat facing the adapter seat, a first air inlet chamber being provided between the cleaning plate and the adapter seat, the first air inlet chamber, the air inlet portion and the ejector pipe being connected in sequence to form a first air inlet channel; when gas is ejected toward the ejector pipe, the ejector pipe generates negative pressure, causing the air above the burner to enter the ejector pipe body through the first air inlet channel.

[0009] The adapter seat is in the shape of a cover, which has a main body that covers the premixing chamber. The air inlet part is a plurality of through grooves and through holes opened on the main body. The premixed air outlet part is opened on the main body and extends toward the fire distributor seat to form a secondary ejector tube. The air inlet and the secondary ejector tube are plugged into each other and the fire distributor seat is suspended above the adapter seat. The suspended space between the fire distributor seat and the adapter seat forms a first air inlet chamber.

[0010] The main body is provided with at least one premixed gas outlet portion communicated with the premixed cavity.

[0011] A support portion is provided on the surface of the body, and the support portion extends toward the fire distribution seat and abuts against the fire distribution seat or the cleaning plate.

[0012] The radial size of the cleaning disc is equal to or larger than the radial size of the adapter seat; the outer edge of the cleaning disc is provided with a water discharge surface extending outward and tilted downward.

[0013] A plurality of heat dissipation teeth are provided on one side of the cleaning plate facing the first air inlet cavity, and adjacent heat dissipation teeth are arranged at intervals to form a heat dissipation air inlet communicated with the first air inlet cavity.

[0014] The burner head also includes a water receiving tray, which is located at the lower side of the cleaning tray and is installed with the adapter or the base.

[0015] The fire-dividing seat is provided with a second air inlet cavity at a position above the cleaning plate corresponding to the fire-dividing seat. The upper outer side of the burner, the second air inlet cavity and the upper inner side of the burner are connected in sequence to form a second air inlet channel. The two sides of the fire-dividing cavity corresponding to the premixed air outlet are respectively provided with flow-equalizing slopes inclined upward from bottom to top. The second air inlet cavity is opened outside the flow-equalizing slope, and the flow-equalizing slope and the second air inlet cavity are arranged with an inner and outer interval.

[0016] The inner wall surface of the premixing chamber is provided with a lower guide surface for diverting and injecting the mixed gas, and the lower guide surface is provided with a first spoiler. The lower guide surface forms a rotating upward extending shape along the direction of diverting and injecting the mixed gas, and the first spoiler is continuously concave and convex or continuously S-shaped concave and convex along the extension direction of the lower guide surface. When the mixed gas enters the premixing chamber, the mixed gas is diffused in the premixing chamber under the action of the first spoiler.

[0017] The adapter is provided with an upper guide surface that matches the premixing chamber or the lower guide surface. The upper guide surface is provided with a second spoiler along the direction of the split and injected gas. The upper guide surface is horizontally arranged. The second spoiler is continuously concave and convex up and down or continuously S-shaped concave and convex along the horizontal direction of the upper guide surface. When the mixed gas enters the premixing chamber, the mixed gas is diffused in the premixing chamber under the action of the second spoiler.

[0018] The beneficial effects of the present invention are:

[0019] The cleaning plate can prevent the accumulated water above the burner from directly entering the bottom of the burner, thereby achieving a cleaning effect. At the same time, air can enter the ejector tube through the first air intake channel, and there is no need to open an additional air intake structure on the bottom shell of the gas stove where the burner is located. While ensuring sufficient air intake and a cleaning effect, it simplifies the structure of the bottom shell of the gas stove where the burner is located, reduces the processing difficulty, and makes the product more beautiful and high-end.

[0020] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded schematic diagram of the first embodiment of the present invention.

[0022] Figure 2 A cross-sectional view of the first embodiment of the present invention Figure 1 .

[0023] Figure 3 A cross-sectional view of the first embodiment of the present invention Figure 2 .

[0024] Figure 4 A cross-sectional view of the first embodiment of the present invention Figure 3 .

[0025] Figure 5 It is a structural schematic diagram of the ignition base according to the first embodiment of the present invention.

[0026] Figure 6 Schematic diagram of the structure of the adapter according to the first embodiment of the present invention.

[0027] Figure 7 It is a cross-sectional schematic diagram of a second embodiment of the present invention.

[0028] Figure 8 Schematic diagram of the structure of the base according to the second embodiment of the present invention.

[0029] Figure 9 It is a cross-sectional schematic diagram of a third embodiment of the present invention.

[0030] Figure 10 FIG. 4 is a schematic structural diagram of an adapter according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] See also Figures 1-6The present invention relates to a top air inlet burner, comprising a base 1 and a flame distributor seat 2. The base 1 is provided with an ejector pipe 11 for ejecting gas, a premixing chamber 13 for combining gas and air into a mixed gas and connected to the ejector pipe 11. The flame distributor seat 2 is provided with an air inlet 23 for inputting the mixed gas, and a flame distributor chamber 22 for diverting the mixed gas and connected to the air inlet 23. The burner also comprises an adapter seat 3 located between the base 1 and the flame distributor seat 2. The adapter seat 3 is provided with an air inlet portion 31 and a premixing outlet portion 32. The ejector pipe 11, the premixing chamber 13, the premixing outlet portion 32, the air inlet 23 and the flame distributor chamber 22 are connected in sequence to form a mixed gas delivery channel.

[0033] In the process of passing through the mixed gas delivery channel, the gas and air are sequentially introduced, the gas and air are mixed, and finally diffused in the fire distribution chamber 22.

[0034] A cleaning plate 21 is provided on the side of the fire distributor 2 facing the adapter 3. A first air inlet cavity 41 is provided between the cleaning plate 21 and the adapter 3. The first air inlet cavity 41, the air inlet portion 31 and the ejector tube 11 are connected in sequence to form a first air inlet channel.

[0035] When the gas is injected into the ejector tube 11, the ejector tube 11 generates negative pressure, causing the air above the burner to enter the ejector tube body 11 through the first air inlet channel. The cleaning plate 21 can prevent the accumulated water above the burner from directly entering the bottom of the burner, thereby achieving a cleaning effect. At the same time, the air can enter the ejector tube body 11 through the first air inlet channel 41 formed by the cleaning plate 21 and the adapter 3.

[0036] The lower air inlet structure in the prior art requires that the bottom shell of the gas stove where the burner is located be additionally provided with an air intake structure to allow air to enter the outer space of the base 1. In other words, an air intake hole needs to be provided on the bottom shell of the gas stove, which increases the processing cost of the bottom shell of the gas stove and is not conducive to improving the product grade.

[0037] Through the first air intake cavity 41 formed between the cleaning plate 21 and the adapter 3, the air can enter the ejector tube from the upper position of the burner through the first air intake channel without affecting the cleaning effect of the burner. There is no need to provide an additional air intake structure on the bottom shell of the gas stove where the burner is located. While ensuring sufficient air intake and a cleaning effect, the structure of the bottom shell of the gas stove where the burner is located is simplified, the processing difficulty is reduced, and the product is more beautiful and high-end.

[0038] Furthermore, the adapter seat 3 is in the shape of a cover, which has a main body 34 that covers the premixing chamber 13. The air inlet portion 31 is a plurality of through grooves and through holes opened on the main body 34. The premixing air outlet portion 32 is opened on the main body 34 and extends toward the fire distributor seat 2 to form a secondary ejection tube; the air inlet 23 and the secondary ejection tube are plugged into each other and the fire distributor seat 2 is suspended above the adapter seat 3. The suspended space between the fire distributor seat 2 and the adapter seat 3 forms a first air inlet chamber 41.

[0039] The provision of multiple through slots and through holes can reduce the resistance of air when passing through the air inlet portion 31, improve the air circulation efficiency, reduce the consumables of the product, and contribute to the lightweighting of the product.

[0040] The secondary ejector tube can make the mixed gas have a secondary ejection effect in the process of the premixing chamber 13 entering the fire distribution chamber 22, thereby improving the mixing effect of the gas and air in the mixed gas.

[0041] The adapter seat 3, the fire distributor seat 2 and the base 1 can be an integrated structure or a split structure. When they are split structures, the connection positions between each other can adopt conventional sealing means such as sealant, which can be understood by those skilled in the art.

[0042] Furthermore, the main body is provided with at least one premixed gas outlet 32 ​​communicating with the premixed cavity 13.

[0043] When the mixed gas enters the premixed gas chamber 13 from the ejector tube 11, it will first diffuse in the premixed gas chamber 13, during which the gas and air will be mixed more fully, and then enter the flame seat 2 to continue mixing, so that the combustion of the mixed gas will be more complete and efficient.

[0044] In this embodiment, the premixed air outlet portion 32 includes two outer ring air outlets and two inner ring air outlets, and the air dividing ring includes an outer air dividing ring and an inner air dividing ring. The two outer ring air outlets are symmetrically connected to the outer air dividing rings, and the two inner ring air outlets are symmetrically connected to the inner air dividing rings, that is, the mixed gas entering the air dividing ring is multilaterally injected through the two outer ring air outlets or the two inner ring air outlets, ensuring that the mixed gas is evenly distributed in the air dividing ring after being fully mixed, thereby improving the overall combustion effect.

[0045] Furthermore, a support portion 341 is provided on the surface of the main body 34, which extends toward the fire distributor seat 2 and abuts against the fire distributor seat 2 or the cleaning plate 21. The support portion 341 supports the fire distributor seat 2, making the fire distributor seat 2 more stable, and the extended protruding shape of the support portion 341 can also be used as a reinforcing rib to improve the structural strength of the adapter seat 3.

[0046] The adapter 3 can also be adapted to different types of bases 1 by fine-tuning its processing dimensions, so that it can be used with existing high-foot burners, cleaning burners, and aircraft burners.

[0047] Furthermore, the radial dimension of the cleaning plate 21 is equivalent to or larger than the radial dimension of the adapter seat 3; the outer edge of the cleaning plate 21 is provided with a water discharge surface 211 extending outward and tilted downward. When accumulated water drips onto the cleaning plate 21, the accumulated water slides downward through the water discharge surface 211 to the water receiving tray 5 below under the action of gravity, preventing the accumulated water from entering the bottom of the burner, achieving a cleaning effect, and facilitating cleaning by users.

[0048] Furthermore, a plurality of heat dissipation teeth 212 are provided on the side of the cleaning plate 21 facing the first air inlet cavity 41. Adjacent heat dissipation teeth 212 are arranged at intervals to form a heat dissipation air inlet 213 connected to the first air inlet cavity 41, thereby improving the heat dissipation effect of the fire distributor 2, and then regulating the overall temperature of the fire distributor 2, avoiding the fire distributor 2 from being too hot due to long-term operation, resulting in accelerated aging, which is beneficial to extending the service life of the product.

[0049] The heat dissipation teeth 212 can also abut against the support portion 341 to support the ignition seat 2. Of course, the heat dissipation teeth 212 can also be preferably arranged at the outer edge position of the bottom of the ignition seat 2, so that more air can pass through the heat dissipation air inlet 213 to improve the heat dissipation effect.

[0050] Furthermore, the stove head also includes a water receiving tray 5, which is located at the lower side of the cleaning tray 21. The water receiving tray 5 is installed with the adapter 3 or the base 1, so that the user can uniformly handle the accumulated water and clean it more conveniently.

[0051] Furthermore, a second air inlet cavity 42 is provided in the position above the cleaning plate 21 of the fire dividing seat 2. The upper outer side of the burner, the second air inlet cavity 42 and the upper inner side of the burner are connected in sequence to form a second air inlet channel. The two sides of the corresponding premixed air outlet 32 ​​in the fire dividing cavity 22 are respectively provided with an equalizing flow slope 221 inclined upward from bottom to top. When the mixed gas enters the fire dividing cavity 22, it climbs upward under the action of the equalizing flow slope 221, which increases the time for the mixed gas to diffuse in the gas dividing ring, so that the gas and air can be more fully mixed.

[0052] The second air inlet cavity 42 is opened outside the flow balancing slope 221, and the flow balancing slope 221 and the second air inlet cavity 42 are arranged with internal and external spacing, which reduces the overall consumables of the fire distributor seat and cleverly utilizes the external space of the flow balancing slope 221, making the overall structure of the fire distributor seat 2 more compact.

[0053] It should be noted that the solid arrows in the accompanying drawings represent the diffusion direction of the mixed gas in the mixed gas delivery channel; the hollow arrows in the accompanying drawings represent the diffusion direction of the air in the first air intake channel; and the dotted arrows in the accompanying drawings represent the diffusion direction of the air in the second air intake channel.

[0054] Second embodiment:

[0055] See also Figure 7 、 Figure 8 The present embodiment differs from the first embodiment in that a lower guide surface 12 for diverting and guiding the mixed gas is provided on the inner wall surface of the premixing chamber 13 of the present all-upward air inlet burner head. The lower guide surface 12 is provided with a first flow disruptor 121. The lower guide surface 12 forms a rotating upwardly extending shape along the direction of diverting and guiding the mixed gas. The first flow disruptor 121 is continuously concave and convex or continuously S-shaped concave and convex along the extension direction of the lower guide surface 12. When the mixed gas enters the premixing chamber 13, the mixed gas diffuses in the premixing chamber 13 under the action of the first flow disruptor 121. Part of the airflow moves irregularly due to the shape of the first flow disruptor 121, which easily forms turbulent flow. When the mixed gas forms turbulent flow, the diffusion speed slows down, thereby increasing the mixing time. In addition, the mixed gas forming the turbulent flow entangles with each other, which is more conducive to the mixing of gas and air.

[0056] The remaining undescribed parts are the same as those in the first embodiment and will not be repeated here.

[0057] Third embodiment:

[0058] See also Figure 9 、 Figure 10 The present embodiment differs from the second embodiment in that the adapter 3 of the present all-upward air inlet burner is provided with an upper guide surface 33 that matches the premixing chamber 13 or the lower guide surface 12. The upper guide surface 33 is provided with a second spoiler 331 along the direction of the diverted and guided gas. The upper guide surface 33 is arranged horizontally, and the second spoiler 331 is arranged in a continuous vertical concave-convex pattern or a continuous S-shaped concave-convex pattern along the horizontal direction of the upper guide surface 33. When the mixed gas enters the premixing chamber 13, the mixed gas diffuses in the premixing chamber 13 under the action of the second spoiler 331. During the diffusion of the mixed gas in the premixing chamber 13, part of the airflow moves irregularly due to the shape of the second spoiler 331, which easily forms turbulent flow. When the gas forms turbulent flow, the diffusion speed slows down, thereby increasing the gas mixing time. In addition, the gases forming the turbulent flow become entangled with each other, which is more conducive to the mixing of gas and air.

[0059] In this embodiment, the first spoiler 121 and the second spoiler 331 are provided at the same time, which increases the irregularity of the gas flow, improves the chance of turbulence formation, and is more conducive to the mixing of gas and air.

[0060] The remaining undescribed parts are the same as those in the second embodiment and will not be repeated here.

[0061] The above embodiments are only preferred embodiments of the present invention, and other embodiments of the present invention are also possible. Those skilled in the art may make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope set by the claims of this application.

Claims

1. A full upper air inlet stove head, comprising a base (1) and a flame distributor seat (2), wherein the base (1) is provided with an ejector pipe (11) for ejecting gas, a premixing chamber (13) for combining gas and air into a mixed gas and communicating with the ejector pipe (11), and the flame distributor seat (2) is provided with an air inlet (23) for inputting the mixed gas, and a flame distributor chamber (22) for diverting the mixed gas and communicating with the air inlet (23), characterized in that: The burner head further comprises an adapter seat (3) located between the base (1) and the flame distribution seat (2), the adapter seat (3) being provided with an air inlet portion (31) and a premixing air outlet portion (32); the ejector tube (11), the premixing chamber (13), the premixing air outlet portion (32), the air inlet (23) and the flame distribution chamber (22) are connected in sequence to form a mixed gas delivery channel; a cleaning plate (21) is provided on a side of the flame distribution seat (2) facing the adapter seat (3), a first air inlet chamber (41) is provided between the cleaning plate (21) and the adapter seat (3), the first air inlet chamber (41), the air inlet portion (31) and the ejector tube (11) are connected in sequence to form a first air inlet channel; when the fuel gas is ejected toward the ejector tube (11), the ejector tube (11) generates a negative pressure, causing the air above the burner head to enter the ejector tube body (11) through the first air inlet channel; A plurality of heat dissipation teeth (212) are provided on one side of the cleaning plate (21) facing the first air inlet cavity (41), and adjacent heat dissipation teeth (212) are arranged at intervals to form a heat dissipation air inlet (213) communicating with the first air inlet cavity (41); The adapter (3) is in the shape of a cover, and comprises a body (34) that covers the premixing chamber (13); the air inlet (31) is a plurality of through slots and through holes formed on the body (34); a support portion (341) is provided on the surface of the body (34), and the heat dissipation teeth (212) abut against the support portion (341); The fire-distributing seat (2) is provided with a second air inlet cavity (42) at a position above the cleaning plate (21); the upper outer side of the burner head, the second air inlet cavity (42) and the upper inner side of the burner head are connected in sequence to form a second air inlet passage; and flow-equalizing inclined surfaces (221) inclined upward from bottom to top are respectively provided on both sides of the fire-distributing cavity (22) corresponding to the premixed air outlet portion (32); the second air inlet cavity (42) is arranged outside the flow-equalizing inclined surface (221); and the flow-equalizing inclined surface (221) and the second air inlet cavity (42) are arranged with an inner and outer spacing.

2. The full upper air inlet furnace head according to claim 1, characterized in that: The premixed air outlet (32) is provided on the main body (34) and extends toward the ignition seat (2) to form a secondary ejector tube; the air inlet (23) and the secondary ejector tube are plugged and installed with each other, and the ignition seat (2) is suspended above the adapter seat (3), and the suspended space between the ignition seat (2) and the adapter seat (3) forms a first air inlet cavity (41).

3. The full upper air inlet furnace head according to claim 2, characterized in that: The body (34) is provided with at least one premixing gas outlet (32) which is in communication with the premixing chamber (13).

4. The full upper air inlet furnace head according to claim 2, characterized in that: The support portion (341) extends toward the fire distribution seat (2) and abuts against the fire distribution seat (2) or the cleaning plate (21).

5. The full upper air inlet furnace head according to claim 1, characterized in that: The radial dimension of the cleaning plate (21) is equal to or greater than the radial dimension of the adapter seat (3); the outer edge of the cleaning plate (21) is provided with a water discharge surface (211) extending outwards and tilting downwards.

6. The full upper air inlet furnace head according to claim 1, characterized in that: The stove head further comprises a water receiving tray (5), wherein the water receiving tray (5) is located at the lower side of the cleaning tray (21), and the water receiving tray (5) is mounted on the adapter seat (3) or the base (1).

7. The full upper air inlet furnace head according to any one of claims 1 to 6, characterized in that: The inner wall surface of the premixing chamber (13) is provided with a lower guide surface (12) for diverting and guiding the mixed gas, the lower guide surface (12) is provided with a first spoiler (121), the lower guide surface (12) forms a shape extending upward in a rotational manner along the direction of diverting and guiding the mixed gas, the first spoiler (121) is continuously concave-convexly arranged or continuously S-shaped concave-convexly arranged along the extension direction of the lower guide surface (12), and when the mixed gas enters the premixing chamber (13), the mixed gas is diffused in the premixing chamber (13) under the action of the first spoiler (121).

8. The full upper air inlet furnace head according to claim 7, characterized in that: The adapter seat (3) is provided with an upper guide surface (33) matching the premixing chamber (13) or the lower guide surface (12); the upper guide surface (33) is provided with a second spoiler (331) along the direction of the split-flow injection combustion gas; the upper guide surface (33) is arranged horizontally; the second spoiler (331) is arranged in a continuous up-and-down concave-convex arrangement or a continuous S-shaped concave-convex arrangement along the horizontal direction of the upper guide surface (33); when the mixed gas enters the premixing chamber (13), the mixed gas is diffused in the premixing chamber (13) under the action of the second spoiler (331).

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