CN219976426U - Combustion device and gas stove - Google Patents

Abstract

The utility model relates to a combustion device and a gas stove, comprising: the furnace frame comprises an energy-gathering retainer ring and a mixing pipe, the energy-gathering retainer ring is arranged at the output end of the mixing pipe in a surrounding mode, the mixing pipe is of a cylinder structure, the mixing pipe is provided with an inner ring air passage and an outer ring air passage, and the outer ring air passage is arranged at the periphery of the inner ring air passage in a surrounding mode; the side wall of the mixing tube is provided with a first lower air inlet communicated with the outer ring air passage; the fire cover is covered at the output end and comprises an inner ring part and an outer ring part which correspondingly cover the inner ring air passage and the outer ring air passage; the gas seat is connected with the input end of the mixing pipe, the gas seat is provided with a gas channel and a nozzle, the gas channel is communicated with the inner ring air channel and the outer ring air channel through the nozzle, the side wall of the gas seat is provided with a gas supplementing channel, and the gas supplementing channel is communicated with the inner ring air channel; the gas seat and the mixing pipe are positioned in the orthographic projection range of the energy-gathering check ring. Through locating the mixing tube in the orthographic projection range of gathering can retaining ring, reduce the holistic horizontal volume of burner for simple to operate and flexibility.

Description

Combustion device and gas stove

Technical Field

The utility model relates to the field of gas cookers, in particular to a combustion device and a gas cooker.

Background

The gas stove comprises a combustion device which is used as a main component of the gas stove, and the combustion device can directly influence the combustion working condition and the performance of the stove. The burner combustion device comprises a fire cover and a burner structure serving as an air inlet part, wherein the burner structure is used for transmitting mixed gas of fuel gas and oxygen, and the mixed gas is sent to the fire cover to be ignited to form outer ring fire and inner ring fire.

The related furnace end structure still has the following problems: after being mixed by the injection pipe, the fuel gas and the air are mixed to the fire cover, and the injection pipe is arranged, so that the overall transverse volume of the combustion device is large, the requirement on the installation space of the gas stove is high, and the installation is inconvenient.

Disclosure of Invention

One of the technical problems to be solved by the utility model is to provide a combustion device which can reduce the transverse volume of a combustor and reduce the requirement on the installation space.

The second technical problem to be solved by the utility model is to provide a gas stove which can reduce the volume of a burner, reduce the requirement on the installation space and is more flexible to install.

The first technical problem is solved by the following technical scheme:

a combustion apparatus comprising:

the furnace frame comprises an energy-gathering retainer ring and a mixing pipe, the energy-gathering retainer ring is arranged at the output end of the mixing pipe in a surrounding mode, the mixing pipe is of a cylinder structure, the mixing pipe is provided with an inner ring air passage and an outer ring air passage, and the outer ring air passage is arranged at the periphery of the inner ring air passage in a surrounding mode; the side wall of the mixing tube is provided with a first lower air inlet communicated with the outer ring air passage;

the fire cover is covered at the output end and comprises an inner ring part and an outer ring part which correspondingly cover the inner ring air passage and the outer ring air passage; and

the gas seat is connected with the input end of the mixing pipe, the gas seat is provided with a gas channel and a nozzle, the gas channel is communicated with the inner ring air channel and the outer ring air channel through the nozzle, the side wall of the gas seat is provided with a gas supplementing channel, and the gas supplementing channel is communicated with the inner ring air channel;

the gas seat and the mixing pipe are positioned in the orthographic projection range of the energy-gathering check ring.

Compared with the background technology, the combustion device of the utility model has the beneficial effects that: through setting up the hybrid tube, accomplish the mixture of gas and air in the hybrid tube, the hybrid tube is the cylinder structure and is located the orthographic projection scope that gathers can the retaining ring, can effectively reduce holistic horizontal volume of burner, reduces the requirement to the interior installation space of gas-cooker, simple to operate and more nimble. The first lower air inlet and the air supplementing channel can ensure the sufficient air supplement of the inner ring air channel and the outer ring air channel. Through the arrangement of the inner ring fire and the outer ring fire, the gas stove with higher heat load requirement, such as a Chinese type stove, can be met.

In one embodiment, the mixing tube comprises an inner tube and an outer tube which are connected through a plurality of baffles;

the inner chamber of inner tube forms the inner ring air flue, forms the outer loop air flue between the lateral wall of inner tube and the inside wall of outer tube, and first lower air inlet sets up in the lateral wall of outer tube.

In one embodiment, the gas channel comprises a first gas channel and a second gas channel, the nozzle comprises a first nozzle and a second nozzle, the first gas channel is communicated with the inner ring gas channel through the first nozzle, and the second gas channel is communicated with the outer ring gas channel through the second nozzle.

In one embodiment, a connecting part is arranged in the gas seat, the first gas passage and the second gas passage are arranged on the connecting part, a containing cavity is formed on the side wall of the connecting part and the side wall of the gas seat, the second gas passage is communicated with the containing cavity, and the containing cavity is communicated with the outer ring gas passage through a second nozzle.

In one embodiment, the inner wall of the outer tube is provided with a connecting block, the connecting block is positioned in the outer ring air passage, and the outer tube is connected with the gas seat through the connecting block.

In one embodiment, the end face of the gas seat is provided with at least two bosses, an air supplementing channel is formed between adjacent bosses, the connecting blocks are arranged in one-to-one correspondence with the bosses, the connecting blocks are connected with the bosses, and the second nozzle is arranged on the bosses.

In one embodiment, at least one boss is provided with a receiving block, and when the mixing pipe is connected with the gas seat, the receiving block stretches into the outer ring air passage, and the second nozzle is arranged on the receiving block.

In one embodiment, the inner ring part and the outer ring part are connected to form an integral structure of the fire cover, and fire holes are uniformly distributed on the inner ring part and the outer ring part;

the local inner ring part is embedded in the inner pipe to limit the positions of the fire cover and the furnace frame.

In one embodiment, the energy accumulating check ring is provided with an upper air inlet.

The second technical problem is solved by the following technical scheme:

a gas range comprising a combustion apparatus as in the above embodiments.

Compared with the background technology, the gas stove has the beneficial effects that: the gas stove provided by the utility model comprises the combustion device, so that the beneficial effects achieved by the gas stove are the same as those achieved by the combustion device provided by the embodiment, and the description is omitted herein.

Drawings

Fig. 1 is a schematic structural diagram of a combustion device according to an embodiment of the present utility model.

Fig. 2 is an exploded view of a combustion device according to an embodiment of the present utility model.

Fig. 3 is a schematic view of a furnace frame structure of a combustion device according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of a hob of a combustion apparatus according to an embodiment of the present utility model.

Fig. 5 is a schematic view of a fire cover structure of a combustion device according to an embodiment of the utility model.

Fig. 6 is a schematic diagram of a gas seat of a combustion device according to an embodiment of the utility model.

Fig. 7 is an exploded view of a gas seat of a combustion device according to an embodiment of the present utility model.

Fig. 8 is a front view of a combustion apparatus according to an embodiment of the present utility model.

Fig. 9 is a cross-sectional view of the combustion apparatus of fig. 8 at A-A.

Fig. 10 is a schematic view of an inside of a gas seat of a combustion device according to an embodiment of the present utility model.

Fig. 11 is a top view of a combustion apparatus according to an embodiment of the present utility model.

FIG. 12 is a cross-sectional view of the combustion apparatus of FIG. 11 at B-B.

FIG. 13 is a schematic view of an inner ring flame gas supply flow of a combustion apparatus according to an embodiment of the present utility model.

FIG. 14 is a schematic view of an external ring fire air supply flow of a combustion device according to an embodiment of the present utility model.

Fig. 15 is a schematic structural diagram of a combustion device according to another embodiment of the present utility model.

Reference numerals:

100. a furnace frame;

11. a mixing tube; 12. energy-gathering check rings; 13. a bracket;

111. an outer tube; 112. an inner tube; 113. a partition plate; 114. an input end; 115. an output end; 116. a connecting block;

1111. an outer annular airway; 1112. a first lower air inlet;

1121. an inner annular airway;

121. a bottom; 122. a top; 123. an upper air inlet;

200. a gas seat;

21. an air supplementing channel; 22. a gas passage; 23. a cavity; 24. a boss; 25. a nozzle; 26. sealing cover; 27. a connection part;

211. a second lower inlet port;

221. a first gas passage; 222. a second gas passage;

2211. an air inlet end; 2212. an air outlet end;

241. a threaded hole; 242. a receiving block;

2421. a gas hole;

251. a first nozzle; 252. a second nozzle;

300. a fire cover;

31. an inner ring portion; 32. an outer ring portion; 33. a fire hole;

400. and a connecting piece.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 shows a schematic structural view of a combustion apparatus according to an embodiment of the present utility model. Some embodiments of the present utility model provide a combustion apparatus including a hob 100, a gas seat 200, and a fire cover 300. Specifically, referring to fig. 2, fig. 2 shows an exploded view of a combustion device according to an embodiment of the present utility model, and a furnace frame 100 includes a mixing pipe 11 and an energy collecting collar 12, where the mixing pipe 11 is connected to the energy collecting collar 12. In one embodiment, referring to fig. 3 and 4, fig. 3 shows a schematic view of a furnace frame structure of a combustion device according to an embodiment of the present utility model, and fig. 4 shows a cross-sectional view of a furnace frame of a combustion device according to an embodiment of the present utility model. The energy-collecting retainer 12 comprises a retainer side and a bottom 121, wherein the retainer side surrounds the bottom 121 in the circumferential direction, and a heat insulation cavity is formed between the retainer side and the bottom 121. The flame burns in the heat insulation cavity by the energy gathering retainer ring 12, so that heat energy generated by the flame is difficult to diffuse. The heat energy accumulated in the energy accumulating check ring 12 heats the air in the energy accumulating check ring 12, and a temperature difference is formed between the inside and the outside of the energy accumulating check ring 12, so that an upward moving hot air flow is formed in the energy accumulating check ring 12. The cooker is disposed directly above the energy accumulating collar 12 so that more heat is applied to the heating cooker.

In this embodiment, the mixing tube 11 has an oppositely disposed inlet end 114 and outlet end 115, the outlet end 115 extending into the insulating chamber. The mixing tube 11 includes an outer tube 111 and an inner tube 112. The fire cover 300 is received within the insulated cavity and the fire cover 300 overlies the output end 115. Referring to fig. 5, fig. 5 shows a schematic view of a fire cover structure of a combustion apparatus according to an embodiment of the utility model, and a fire cover 300 includes an inner ring portion 31 and an outer ring portion 32. The inner ring portion 31 is covered on the inner tube 112, and the outer ring portion 32 is covered on the outer tube 111. The inner ring part 31 and the outer ring part 32 are uniformly provided with fire holes 33, so that the mixed gas overflowed from the fire holes 33 on the inner ring part 31 is ignited to form inner ring fire, and the mixed gas overflowed from the fire holes 33 on the outer ring part 32 is ignited to form outer ring fire. Illustratively, the inner tube 112 is received in the inner cavity of the outer tube 111, the inner cavity of the inner tube 112 is an inner annular air passage 1121, and an outer annular air passage 1111 is formed between the outer sidewall of the inner tube 112 and the inner sidewall of the outer tube 111. The inner tube 112 is connected with the outer tube 111 through a plurality of baffles 113. The inner tube 112 and the outer tube 111 are connected by a partition 113 to form the main structure of the mixing tube 11.

The gas holder 200 is connected to the hob 100, and the mixing tube 11 on the hob 100 is received on the first surface of the gas holder 200. Referring to fig. 6 and 7, fig. 6 shows a schematic gas seat structure of a combustion device according to an embodiment of the utility model, and fig. 7 shows an explosion schematic of the gas seat of the combustion device according to an embodiment of the utility model. The gas seat 200 has a gas passage 22 built therein. The gas seat 200 is provided with at least two nozzles 25, and the nozzles 25 are connected to the gas channels 22, and the nozzles 25 can spray gas to the corresponding inner tube 112 and outer tube 111 so as to spray the gas of the gas channels 22 into the inner tube 112 and the outer tube 111 respectively. Passages are provided between the outer tube 111, the inner tube 112 and the outside atmosphere, and outside air is sucked from the corresponding passages into the outer tube 111, the inner tube 112 by means of a gas flow. Specifically, the nozzles 25 include a first nozzle 251 and a second nozzle 252, the first nozzle 251 is disposed corresponding to the inner ring air passage 1121, and the second nozzle 252 is disposed corresponding to the outer ring air passage 1111. That is, the inner ring air passage 1121 and the outer ring air passage 1111 are respectively provided with a plurality of first nozzles 251 and second nozzles 252, so that the gas is sprayed towards the inner ring air passage 1121 and the outer ring air passage 1111 correspondingly and independently through the first nozzles 251 and the second nozzles 252, and the inner ring fire and/or the outer ring fire can be formed on the fire cover 300.

More specifically, as shown in fig. 3 and 4, the inner tube 112 and the outer tube 111 are concentrically arranged, and the outer ring air passage 1111 has an annular structure. The partition 113 is radially disposed on the outer wall of the inner tube 112 and extends to the outer tube 111, and the outer ring air passage 1111 is partitioned into a plurality of spaces by the partition 113. The second nozzles 252 are circumferentially arranged in the outer annular air passage 1111 such that the second nozzles 252 extend into the space defined by the partition of the adjacent partition 113. The second nozzle 252 in the outer annular air passage 1111 injects fuel gas toward the outer annular air passage 1111.

In this aspect, referring to fig. 8 and 9, fig. 8 shows a front view of the combustion apparatus in an embodiment of the present utility model, and fig. 9 shows a cross-sectional view of the combustion apparatus at A-A in fig. 8. The inner ring portion 31 and the outer ring portion 32 are concentrically disposed, and the outer ring portion 32 surrounds the outer periphery of the inner ring portion 31, so that the inner ring portion 31 and the outer ring portion 32 are connected to form an integral structure of the fire cover 300. The partial inner ring portion 31 is fitted into the inner tube 112. One ends of the inner tube 112 and the outer tube 111 are attached to the first surface of the gas seat 200, and the fire cover 300 is mounted on the other ends of the inner tube 112 and the outer tube 111. The inner ring 31 is partially embedded in the inner tube 112, so that the outer ring air passage 1111 and the inner ring air passage 1121 form independent air passages. Meanwhile, the inner ring portion 31 is embedded in the inner tube 112 to limit the relative positional relationship between the fire cover 300 and the stove frame 100, so that the fire cover 300 and the stove frame 100 can be conveniently connected.

The gas is injected through the first nozzle 251 and the second nozzle 252 to form high-speed gas flows in the outer tube 111 and the inner tube 112 respectively, the high-speed gas flows can inject external air, and the external air is respectively supplemented into the outer tube 111 and the inner tube 112 along corresponding channels, so that the gas in the outer tube 111 and the inner tube 112 is mixed with the air to form mixed gas, and finally the mixed gas can overflow from the fire hole 33 of the fire cover 300.

In some embodiments of the utility model, the channel includes a first lower air inlet 1112, the first lower air inlet 1112 extending through a side wall of the outer tube 111. The first lower air inlet 1112 is communicated with the outer ring air passage 1111 in the outer tube 111, when the second nozzle 252 in the outer ring air passage 1111 sprays fuel gas, external air enters the outer ring air passage 1111 from the first lower air inlet 1112 to be mixed with the fuel gas, so as to improve the concentration of oxygen in the outer ring air passage 1111, and further meet the oxygen concentration requirement of igniting the mixed gas in the outer ring air passage 1111.

Further, the passages also include a make-up passage for making up air for the inner annular airway 1121. When the first nozzle 251 in the inner ring air passage 1121 injects the fuel gas, the external air enters the inner ring air passage 1121 along the air supplementing passage to be mixed with the fuel gas, so as to increase the concentration of the oxygen in the inner ring air passage 1121.

In one embodiment, the first surface of the gas seat 200 is provided with a gas supplementing channel 21, and the gas supplementing channel 21 extends through the second surface adjacent to the first surface. The air supply passage 21 is provided corresponding to the partition 113. The first nozzle 251 is disposed in the air-supplementing channel 21, the first nozzle 251 can spray toward the inner tube 112, and the partition 113 between the inner tube 112 and the outer tube 111 is located above the air-supplementing channel 21, so that the partition 113 is pressed on the first surface to combine the partition 113 and the air-supplementing channel 21 to form the air-supplementing channel. The air make-up passage is provided in a sealed relation to the outer annular air passage 1111 and is communicated to the inner annular air passage 1121 so that the outside air is supplied to the inner annular air passage 1121 along the air make-up passage. Illustratively, the first surface is a top surface, the second surface is a base side surface adjacent to the top surface, the outer contour shape of the base side surface is circular, the air supplementing channel 21 extends to the base side surface and forms two notches on the base side surface, and when the mixing tube 11 is received on the top surface, the second lower air inlet 211 is formed on the base side surface by splicing the notches with the partition plate 113.

Further, as shown in fig. 7-9, the gas channel 22 includes a first gas channel 221, the first gas channel 221 includes an inlet end 2211 and an outlet end 2212, and the outlet end 2212 is opened in the gas supplementing channel 21. In this embodiment, the air outlet end 2212 forms an opening in the air supplementing channel 21, the first nozzle 251 is installed in the opening, and the first nozzle 251 installed in the air outlet end 2212 sprays fuel gas to the inner ring air channel 1121 correspondingly.

More specifically, the number of the air-supplementing channels 21 is at least two, the plurality of air-supplementing channels 21 intersect at the same intersection point, and the first nozzle 251 is disposed at the intersection point. The air outlet end 2212 is arranged at the intersection point of the plurality of air supplementing channels 21. When the mixing pipe 11 is received on the gas seat 200, at least two air supplementing passages are formed on the gas seat 200 so that external air enters the inner annular air passage 1121 from the plurality of air supplementing passages to increase the amount of air supplemented into the inner annular air passage 1121.

Preferably, the boss 24 is formed by dividing the top surface, which is the first surface, into at least two protrusions of the opposing air-supply passage 21 via the air-supply passage 21. A second nozzle 252 for injecting fuel gas into the outer ring air passage 1111 is installed on the boss 24. The mixing tube 11 is connected to the gas holder 200 by a connector 400, and the input end 114 is attached to the first surface of the gas holder 200. The input end 114 is also provided with a connecting block 116, and the connecting block 116 is connected with the boss 24 through a connecting piece 400. Wherein, the connecting piece 400 is a screw, a through hole is arranged on the connection, and a threaded hole 241 is arranged on the boss 24. The through hole is disposed concentric with the screw hole 241, and a screw is passed through the through hole to be coupled to the screw hole 241, thereby fixedly coupling the connection block 116 with the boss 24.

Note that the air supply passage includes, but is not limited to, one formed by the air supply passage 21 on the gas seat 200 in cooperation with the partition 113. The air supply passage can also be provided in the partition 113, and both ends of the air supply passage penetrate the outer tube 111 and the inner tube 112. External air can enter the inner annular airway 1121 along a plurality of air make-up passages.

In some embodiments of the utility model, the gas passage 22 further includes a second gas passage 222. The first gas channel 221 and the second gas channel 222 are two relatively independent gas channels. The first gas channel 221 and the second gas channel 222 are communicated with the inner tube 112 and the outer tube 111 in a one-to-one correspondence. The first nozzle 251 and the second nozzle 252 are respectively connected to the first gas channel 221 and the second gas channel 222. The first gas channel 221 is communicated with the inner tube 112 and/or the second gas channel 222 is communicated with the outer tube 111 through the corresponding first nozzle 251 and second nozzle 252.

Specifically, referring to fig. 10, fig. 10 shows a schematic view of a gas seat portion of a combustion apparatus according to an embodiment of the present utility model. One inner cavity of the gas channel 22 is a first gas channel 221, and the other inner cavity of the gas channel 22 is a second gas channel 222. The inlet end 2211 of the first gas passage 221 forms an opening at the side of the base, and the opening of the outlet end 2212 is provided with a top surface, and the first nozzle 251 is installed in the outlet end 2212 and sprays gas toward the inner ring gas passage 1121. The gas seat 200 is internally provided with a containing cavity 23, the containing cavity 23 forms an opening on the bottom surface of the gas seat 200, a sealing cover 26 is covered on the opening, and the sealing cover 26 is in sealing connection with the gas seat 200, so that the containing cavity 23 forms a sealing cavity. Specifically, the gas seat 200 is provided with a connecting portion 27, the first gas channel 221 and the second gas channel 222 are disposed at the connecting portion 27, the connecting portion 27 and the sidewall of the gas seat 200 are formed with a cavity 23, the second gas channel 222 is communicated with the cavity 23, and the cavity 23 is communicated with the outer ring air channel 1111 through the second nozzle 252. Since the second nozzles 252 injecting the fuel gas toward the outer ring air passage 1111 are circumferentially arranged, the number of the second nozzles 252 injecting the fuel gas toward the outer ring air passage 1111 is at least two, and a plurality of the second nozzles 252 are connected into the chamber 23.

In this embodiment, as shown in fig. 6 and 7, and in combination with fig. 11 and 12, fig. 11 shows a top view of the combustion apparatus in an embodiment of the present utility model, and fig. 12 shows a cross-sectional view of the combustion apparatus at B-B in fig. 11. The boss 24 is provided with a raised receiving block 242, a gas hole 2421 for loading the second nozzle 252 is arranged in the receiving block 242, and the gas hole 2421 is communicated with the accommodating cavity 23. After the second nozzle 252 is installed in the gas hole 2421, the second nozzle 252 is lifted by the receiving block 242, so that the position of the nozzle 25 is set corresponding to the first lower air inlet 1112, and the first lower air inlet 1112 is close to the second nozzle 252. The high-speed gas injected from the second nozzle 252 needs to be injected upward against its own weight, so that the gas flow velocity at the second nozzle 252 is faster, and the second nozzle 252 is disposed near the first lower intake port 1112 in order to increase the adsorption force of the high-speed gas to the outside air, so that the amount of gas replenished into the outer ring air duct 1111 is increased.

Specifically, the receiving block 242 elevates the second nozzle 252 such that the second nozzle 252 is flush with the location of the first lower air inlet 1112. The first nozzle 251 is disposed in the air supplementing channel 21, that is, the positions of the first nozzle 251 and the second lower air inlet 211 are flush, while the first lower air inlet 1112 and the second lower air inlet 211 are distributed in a staggered manner, the first lower air inlet 1112 and the second lower air inlet 211 are disposed corresponding to the positions of the second nozzle 252 and the first nozzle 251 respectively, so that when the highest flow rate of the fuel gas ejected from the first nozzle 251 and the second nozzle 252 is the same, the adsorption force of the outside air is the same due to the same relative positions of the first lower air inlet 1112 and the second lower air inlet 211 and the second nozzle 252 and the first nozzle 251, so that the mixed fuel gas with approximate concentration is formed in the outer ring air flue 1111 and the inner ring air flue 1121, and the formed inner ring fire and the outer ring fire are the largest fire are consistent, so that the consistency of the combustion device is improved. In addition, although the first nozzle 251 and the second nozzle 252 have a height difference, the first nozzle 251 and the second nozzle 252 are both approximately positioned on the first surface of the gas seat 200, and the distances from the gas in the first nozzle 251 and the second nozzle 252 to the fire cover 300 are approximately equal, so that the same highest flow rate can be realized by adopting the same type of nozzle for the first nozzle 251 and the second nozzle 252, so that the manufacturing cost is saved.

Further, the gas channel 22 forms a table on the side of the gas seat 200, and the first gas channel 221 and the second gas channel 222 extend to the same table to form a gas inlet, so that the gas supply system is connected to the first gas channel 221 and the second gas channel 222 through the gas inlet.

In some embodiments of the present utility model, a perforated upper air inlet 123 is formed in the energy-gathering collar 12. In the heating process using the energy-gathering retainer ring 12, it is found that the energy-gathering retainer ring 12 limits outward diffusion of heat energy and simultaneously limits external air supplement to the heat insulation cavity of the energy-gathering retainer ring 12, so that the combustion of fuel gas is insufficient, energy is wasted, the unburned fuel gas can be pressed out to flow into the external environment, and the environment is in an incompletely-combusted working environment for a long time, and danger is easy to occur.

In order to allow air in the external environment to be quickly replenished into the energy accumulating collar 12. In this embodiment, as shown in fig. 3 and 4, the outside air enters the energy collecting ring 12 through the upper air inlet 123. The energy-collecting retainer 12 is formed by combining a retainer side surface and a bottom 121, and the retainer side surface surrounds the bottom 121 in the circumferential direction. The other side of the collar, opposite the connection bottom 121, is a top 122, and the side of the collar forms an opening in the top 122, the opening facing upwards, so that the flame and the hot gas flow can protrude from the opening. The upper air inlet 123 can be provided on the side of the collar and/or on the bottom 121. Illustratively, the energy-gathering collar 12 has an inverted cone shape, and the area of the bottom 121 is smaller than that of the top 122 to increase the area of the opening at the top 122 so as to increase the combustion area of the flame, so that the heating cooker is more uniform. The upper air inlet 123 penetrates through the side surface of the retainer ring along a straight line direction, and air directly enters the heat insulation cavity of the energy-collecting retainer ring 12 from the upper air inlet 123, so that external air can be timely filled into the energy-collecting retainer ring 12. Since the upper intake port 123 in this embodiment conveniently provides a sufficient amount of oxygen for combustion of the fuel gas, the fuel gas is fully combusted, and thus the maximum value of the fuel gas generating flame is increased. Meanwhile, the upper air inlet 123 sucks the external air into the energy-collecting retainer ring 12, and the air flow direction at the upper air inlet 123 faces into the energy-collecting retainer ring 12, so that the heat in the energy-collecting retainer ring 12 is difficult to diffuse out from the upper air inlet 123 along the air flow. On the other hand, the area of the upper air inlet 123 is far smaller than the coverage area of the energy-gathering retainer ring 12, and the energy-gathering retainer ring 12 can still block most of heat from diffusing outwards, so that heat loss is reduced, and the heating efficiency of the combustion device is further improved.

Further, the number of the brackets 13 is at least three so as to stably receive the cooker by the three brackets 13, and the plurality of brackets 13 are located on the side of the retainer ring Xiang Bushe. The bracket 13 extends to the top 122 of the energy accumulating collar 12, and the bracket 13 protrudes from the top 122 so that the convex portion of the bracket 13 carries the cooker. The receiving surfaces of the brackets 13 form a receiving station for receiving the cookware, under which the energy-collecting retainer 12 is located.

Furthermore, the furnace frame 100 is formed by integrally combining the energy-collecting retainer ring 12, the bracket 13 and the mixing pipe 11, the furnace frame 100 is convenient to integrally form, such as casting, the integrally formed furnace frame 100 saves a connecting structure, the manufacturing cost is saved, the integration level of the furnace frame 100 is high, and the furnace frame 100 and the combustion device are convenient to miniaturize. Meanwhile, the integral molding can improve the strength of the joint between the energy-gathering retainer ring 12, the bracket 13 and the mixing pipe 11.

In one aspect, referring to FIG. 13, FIG. 13 shows a schematic view of an inner ring fire gas supply flow for a combustion apparatus in accordance with an embodiment of the present utility model, the combustion apparatus comprising during ignition of the inner ring fire: first gas G ₁ Flows along the first gas passage 221 and discharges the first gas G from the first nozzle 251 ₁ Vertically upward injected into the inner annular air passage 1121, and the high-speed first gas G flowing in the inner annular air passage 1121 ₁ The air flow forms adsorption force, and the outside air a ₁ The external air a is sucked into the inner ring air passage 1121 from the second lower intake port 211 along the air supply passage ₁ With the first gas G ₁ The mixture is sprayed from the fire holes 33 of the inner ring part 31 and is ignited to form an inner ring fire, and the outside air a is consumed as the air in the energy collecting retainer ring 12 burns ₃ Supplementing the energy-collecting retainer ring 12 from the upper air inlet 123 to make the first fuel gas G ₁ And the full combustion is obtained.

Referring to fig. 14, on the other hand, fig. 14 shows a schematic view of an outer ring fire gas supply flow of a combustion apparatus according to an embodiment of the present utility model, the combustion apparatus comprises during ignition of the outer ring fire: second gas G ₂ From the second gas channel 222, the second gas G is fed into the chamber 23, and the second nozzle 252 communicated with the chamber 23 ₂ Vertically upward into the outer annular air passage 1111, and high-speed second fuel gas G flowing in the outer annular air passage 1111 ₂ The air flow forms adsorption force, and the outside air a ₂ The outside air a is sucked into the outer ring air passage 1111 from the first lower air inlet 1112 ₂ With a second gas G ₂ From the outer ring after mixingThe fire holes 33 of the part 32 are sprayed and ignited to form an outer ring fire, and the air in the energy collecting retainer ring 12 is burnt and consumed, and then the outside air a ₃ Supplementing the energy-collecting retainer ring 12 from the upper air inlet 123 to make the second fuel gas G ₂ And the full combustion is obtained.

Referring to fig. 15, fig. 15 shows a schematic structural view of a combustion apparatus in another embodiment of the present utility model. In another embodiment, the combustion apparatus includes a hob 100, a gas stand 200, and a fire cover 300. Specifically, the hob 100 is integrally formed by integrating the energy accumulating collar 12 and the mixing pipe 11. As with the combustion apparatus of the above embodiment, the rack 100 in the combustion apparatus of the present embodiment is not integrated with the bracket 13. The independent support is often adopted in the current gas stove, and the combustion device is arranged in the gas stove in the embodiment, so that the current gas stove is convenient to improve.

Some embodiments of the present utility model further provide a gas stove, which includes the combustion device provided in the foregoing embodiments. The gas stove in this embodiment has the same advantages as the combustion device provided in the above embodiment, and will not be described here again.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A combustion apparatus, comprising:

the furnace frame (100), the furnace frame (100) comprises an energy-gathering retainer ring (12) and a mixing pipe (11), the energy-gathering retainer ring (12) is arranged at an output end (115) of the mixing pipe (11) in a surrounding mode, the mixing pipe (11) is of a cylinder structure, the mixing pipe (11) is provided with an inner ring air channel (1121) and an outer ring air channel (1111), and the outer ring air channel (1111) is arranged at the periphery of the inner ring air channel (1121) in a surrounding mode; the side wall of the mixing pipe (11) is provided with a first lower air inlet (1112) communicated with the outer ring air passage (1111);

a fire cover (300), wherein the fire cover (300) covers the output end (115), and the fire cover (300) comprises an inner ring part (31) and an outer ring part (32) which correspondingly cover the inner ring air passage (1121) and the outer ring air passage (1111); and

the gas mixing device comprises a gas seat (200) connected with an input end (114) of a mixing pipe (11), wherein the gas seat (200) is provided with a gas channel (22) and a nozzle (25), the gas channel (22) is communicated with an inner annular air channel (1121) and an outer annular air channel (1111) through the nozzle (25), the side wall of the gas seat (200) is provided with a gas supplementing channel (21), and the gas supplementing channel (21) is communicated with the inner annular air channel (1121);

the gas seat (200) and the mixing pipe (11) are positioned in the orthographic projection range of the energy-gathering retainer ring (12).

2. The combustion device according to claim 1, characterized in that the mixing tube (11) comprises an inner tube (112) and an outer tube (111), the inner tube (112) and the outer tube (111) being connected by means of a number of baffles (113);

the inner cavity of the inner tube (112) forms the inner annular air passage (1121), an outer annular air passage (1111) is formed between the outer side wall of the inner tube (112) and the inner side wall of the outer tube (111), and the first lower air inlet (1112) is arranged on the side wall of the outer tube (111).

3. The combustion device according to claim 2, wherein the gas channel (22) comprises a first gas channel (221) and a second gas channel (222), the nozzle (25) comprises a first nozzle (251) and a second nozzle (252), the first gas channel (221) is communicated with the inner ring gas channel (1121) through the first nozzle (251), and the second gas channel (222) is communicated with the outer ring gas channel (1111) through the second nozzle (252).

4. A combustion device according to claim 3, wherein a connecting portion (27) is provided in the gas seat (200), the first gas channel (221) and the second gas channel (222) are provided in the connecting portion (27), a cavity (23) is formed by the connecting portion (27) and a side wall of the gas seat (200), the second gas channel (222) is communicated with the cavity (23), and the cavity (23) is communicated with the outer ring air channel (1111) through the second nozzle (252).

5. The combustion device according to claim 4, characterized in that the inner wall of the outer tube (111) is provided with a connection block (116), the connection block (116) being located in the outer ring air channel (1111), the outer tube (111) being connected with the gas seat (200) through the connection block (116).

6. The combustion device according to claim 5, wherein at least two bosses (24) are provided on an end surface of the gas seat (200), the gas supplementing channels (21) are formed between adjacent bosses (24), the connection blocks (116) are arranged in one-to-one correspondence with the bosses (24), the connection blocks (116) are connected with the bosses (24), and the second nozzles (252) are mounted on the bosses (24).

7. The combustion device according to claim 6, wherein at least one boss (24) is provided with a receiving block (242), the receiving block (242) extending into the outer annular air passage (1111) when the mixing tube (11) is connected to the gas seat (200), and the second nozzle (252) being mounted on the receiving block (242).

8. The combustion device according to claim 2, wherein the inner ring part (31) and the outer ring part (32) are connected to form an integral structure of the fire cover (300), and fire holes (33) are uniformly distributed on the inner ring part (31) and the outer ring part (32);

a partial inner ring (31) is embedded in the inner tube (112) to limit the positions of the fire cover (300) and the furnace frame (100).

9. A combustion device according to claim 1, characterized in that the energy accumulating collar (12) is provided with an upper air inlet (123).

10. A gas range comprising a combustion apparatus as claimed in any one of claims 1 to 9.