CN214581069U

CN214581069U - Combustor and gas stove

Info

Publication number: CN214581069U
Application number: CN202120064176.9U
Authority: CN
Inventors: 张恩玉; 方松青; 苑善通; 贺立军; 王书春; 张蒙恩; 陈雄
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd; Qingdao Haier Wisdom Kitchen Appliance Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd; Qingdao Haier Wisdom Kitchen Appliance Co Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-11-02
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to the technical field of gas cookers, and discloses a burner, which comprises a burner assembly and a gas distribution disc, wherein the burner assembly comprises a furnace chamber, a first injection pipe and a second injection pipe, a first gas inlet passage communicated with the first injection pipe and a second gas inlet passage communicated with the second injection pipe are arranged in the furnace chamber, and the gas distribution disc comprises a plurality of first gas flow channels and is communicated with the first gas inlet passage; a plurality of second airflow passages communicating with the second intake passage. The device can effectively avoid influencing the heating effect of the burner due to the failure of part of the path. The application also discloses a gas stove.

Description

Combustor and gas stove

Technical Field

The application relates to the technical field of gas stoves, for example, relates to a combustor and gas stove.

Background

At present, traditional gas stove combustor adopts two ring fire or three ring fire usually, the combustor includes the fire lid, divide the gas dish, the furnace chamber and draws and penetrate the pipe, the air gets into the furnace chamber and shunts through dividing the gas dish through drawing penetrating the pipe, the air after being shunted flows through the fire hole of fire lid, because traditional gas stove combustor adopts two ring fire or three ring fire usually, under the condition that the combustor used for a long time, the condition that can't be lighted and lead to this reposition of redundant personnel passageway inefficacy exists in the gas of premixing in the reposition of redundant personnel passageway of minute gas dish, furthermore, the flow of the air through drawing penetrating the pipe is not continuously in steady state, like this, the flow of the air that flows through the fire hole after shunting through minute gas dish is unstable yet, like this, can influence the heating effect of combustor.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a burner and a gas stove, so as to avoid influencing the heating effect of the burner due to partial path failure.

In some embodiments, the burner comprises: furnace end subassembly and branch gas dish, the furnace end subassembly includes the furnace chamber, first draws penetrates pipe and second and draws and penetrate the pipe, be equipped with in the furnace chamber with first air inlet passage that penetrates the pipe intercommunication is drawn to first and the second air inlet passage that penetrates the pipe intercommunication is drawn to the second, divide the gas dish to include: a plurality of first air flow passages communicating with the first air intake passage; a plurality of second airflow passages communicating with the second intake passage.

In some embodiments, the combustor further comprises: the fire cover assembly is positioned above the gas distribution plate and is provided with a plurality of fire hole arrays, and any fire hole array comprises fire holes distributed in an array mode along the circumferential direction of the fire cover assembly; wherein the outlet of one first air flow channel is communicated with one fire hole array, and the outlet of one second air flow channel is communicated with one fire hole array.

In some embodiments, the burner assembly further comprises: the first barrel is communicated with the first injection pipe, and the first air inlet passage is enclosed inside the first barrel; and the second cylinder is communicated with the second injection pipe, is arranged along the circumferential direction of the first cylinder and is coaxially arranged with the first cylinder, and defines the second air inlet passage together with the first cylinder.

In some embodiments, the burner assembly further comprises: a third ejector tube; the third cylinder is communicated with the third injection pipe and arranged in the first cylinder, and a third air inlet passage is enclosed in the third cylinder; the air distribution plate further includes a third air flow passage communicating with the third air intake passage.

In some embodiments, the burner assembly further comprises: the first ignition needle penetrates through the gas distribution disc, and the distance between the first ignition needle and a fire hole array corresponding to a first air flow channel in the middle of the gas distribution disc is greater than the distance between the first ignition needle and a fire hole array of a second air flow channel in the middle of the gas distribution disc; and/or the second ignition needle penetrates through the gas distribution disc and is distributed with the first ignition needle at intervals along the circumferential direction of the second cylinder, and the distance between the second ignition needle and the fire hole array of the first air flow channel in the middle of the gas distribution disc is smaller than the distance between the second ignition needle and the fire hole array of the second air flow channel in the middle of the gas distribution disc.

In some embodiments, the outer wall of the second cylinder is provided with a first boss and a second boss, the first ignition needle is detachably arranged on the first boss, and the second ignition needle is detachably arranged on the second boss.

In some embodiments, the first cylinder is circumferentially provided with a first thermocouple, and the first thermocouple is positioned on the inner side of the second cylinder and is used for maintaining flame-stable combustion of all the second airflow channels and the third airflow channel.

In some embodiments, a second thermocouple is disposed circumferentially of the second cylinder, and the second thermocouple is disposed adjacent to the second ignition needle for maintaining flamestable combustion in all of the first gas flow passages.

In some embodiments, the burner assembly further comprises: the heat insulation gasket is positioned between the first injection pipe, the second injection pipe and the furnace chamber, and the first injection pipe, the second injection pipe and the furnace chamber are detachably arranged at an air inlet of the furnace chamber through the heat insulation gasket; the side of the furnace chamber opposite to the first injection pipe and the second injection pipe is provided with the air inlet.

In some embodiments, the gas burner comprises a burner as described above.

The combustor and the gas stove provided by the embodiment of the disclosure can realize the following technical effects:

the plurality of first air flow channels and the plurality of second air flow channels are arranged on the air distribution disc, the first air inlet channel of the furnace cavity is communicated with all the first air flow channels, the second air inlet channel of the furnace cavity is communicated with all the second air flow channels, and the gas and the air are respectively mixed in the first ejector pipe and the second ejector pipe, so that the premixed gas entering the first air flow channels through the first ejector pipe and the premixed gas entering the second air flow channels through the second ejector pipe are separated and respectively flow through different air flow channels, and the flow paths of the premixed gas are increased.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic view of a combustor configuration provided by embodiments of the present disclosure;

fig. 2 is a schematic structural view of a burner assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a combustor provided in accordance with embodiments of the present disclosure;

FIG. 4 is another schematic cross-sectional view of a combustor provided in accordance with embodiments of the present disclosure;

FIG. 5 is a top view of a combustor provided by embodiments of the present disclosure;

fig. 6 is a front view of a burner assembly provided by embodiments of the present disclosure;

fig. 7 is an exploded view of a gas distribution plate according to an embodiment of the present disclosure;

fig. 8 is an exploded view of a gas distribution plate according to an embodiment of the present disclosure;

fig. 9 is an exploded view of a gas distribution plate according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram illustrating an exploded view of another gas distribution plate provided by embodiments of the present disclosure;

FIG. 11 is an exploded view of another gas distribution plate provided in accordance with embodiments of the present disclosure;

FIG. 12 is a schematic structural view of a lower gas distribution plate of another gas distribution plate provided in the embodiments of the present disclosure;

FIG. 13 is a schematic structural view of a lower gas distribution plate of another gas distribution plate provided in the embodiments of the present disclosure;

FIG. 14 is an exploded view of another gas distribution plate provided by embodiments of the present disclosure;

FIG. 15 is an exploded view of another gas distribution plate provided in accordance with embodiments of the present disclosure;

FIG. 16 is an exploded view of another gas distribution plate provided in accordance with embodiments of the present disclosure;

FIG. 17 is an exploded view of another gas distribution plate provided in accordance with embodiments of the present disclosure;

fig. 18 is a schematic structural view of a lower air distribution plate of another air distribution plate provided in the embodiments of the present disclosure.

Reference numerals:

100: a fire cover assembly; 200: a gas distribution plate; 300: a burner assembly; 10: a first intake passage; 20: a second intake passage; 30: a third air intake passage; 1001: fire holes; 3001: a furnace chamber; 3002: a first ejector tube; 3003: a second ejector tube; 3004: a first ignition needle; 3005: a second ignition needle; 3006: a second ejector tube; 3007: a first thermocouple; 3008: a second thermocouple; 3001 a: a first cylinder; 3001 b: a second cylinder; 3001 c: a third cylinder; 30011: an air inlet; 30011 b: a first boss; 30012 b: a second boss; 2001: a first outer airflow passage; 2002: a first inboard airflow passage; 2003: a second outside air flow passage; 2004: a second middle side air flow passage; 2005: a third inboard airflow passage; 201. an inner ring air inlet; 202. a middle annular air inlet groove; 2021. a middle ring air inlet; 203. an outer annular inlet slot; 2031. an outer ring air inlet; 204. an inner ring gas separation port; 205. a first gas distribution channel; 206. a second gas distribution channel; 207. a third air distribution channel; 208. a fourth air distribution channel; 210. a lower gas distribution plate; 211. a lower tray body; 2111. a tray wall; 212. an inner annular member; 213. a middle annular member; 214. an outer annular member; 220. an intake partition member; 221. an air inlet cavity; 2211. an outer intake passage; 2212. an inner intake passage; 222. a partition member; 230. a first intake zone; 231. a first air intake passage; 2311. a first radial air intake portion; 2312. a first circumferential air intake portion; 232. a second intake passage; 2321. a second radial inlet portion; 2322. a second circumferential intake portion; 240. a first partitioning rib; 241. a first arc segment; 242. a first straight line segment; 2421. a first side first straight line segment; 2422. a second side first straight line segment; 243. a first bending section; 244. a second bending section; 250. a second partitioning rib; 251. a second arc segment; 252. a second straight line segment; 260. a third annular partition rib; 270. an air supplement channel; 271. an air make-up inlet; 272. an inboard air inlet passage; 273. an outside air inlet passage; 274. an air outlet side passage; 275. an inboard air supplement outlet; 276. an outside air make-up outlet; 280. an air deflector; 281. an arc baffle; 282. a straight plate; 290. an upper gas distribution plate; 291. an upper tray body; 292. a mating member; 293. an inner ring member; 294. a first annular gas distribution member; 295. a second annular gas distribution member; 296. a third annular gas distribution member; 297. a fourth annular gas distribution member; 298. a ramp structure; 2901. a first air outlet; 2902. a second air outlet; 2903. a third air outlet; 2904. and a fourth air outlet.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1, an embodiment of the present disclosure provides a burner including a burner assembly 300 and a gas distributor 200. The burner assembly 300 includes a cavity 3001, a first injection pipe 3002 and a second injection pipe 3003. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The air-distribution tray 200 includes a plurality of first air flow passages and a plurality of second air flow passages. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20.

By adopting the burner provided by the embodiment of the disclosure, the plurality of first airflow channels and the plurality of second airflow channels are arranged on the air distribution disc, the first air inlet channel of the furnace chamber is communicated with all the first airflow channels, the second air inlet channel of the furnace chamber is communicated with all the second airflow channels, fuel gas and air are respectively mixed in the first injection pipe and the second injection pipe, the premixed gas entering the first air flow channel through the first ejector pipe and the premixed gas entering the second air flow channel through the second ejector pipe are separated and flow through different air flow channels respectively, the flow path of the premixed gas is increased, and therefore, even if part of the airflow channels fail or the flow of the premixed gas in the part of the airflow channels is unstable, the premixed gas can flow through other airflow channels, so that the heating effect of the combustor is effectively prevented from being influenced due to the failure of part of the paths.

Referring to fig. 1 and 2, an embodiment of the present disclosure provides a burner including a burner assembly 300, a gas distributor 200, and a fire cover assembly 100. The burner assembly 300 includes a cavity 3001, a first injection pipe 3002 and a second injection pipe 3003. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The air-distribution tray 200 includes a plurality of first air flow passages and a plurality of second air flow passages. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20. The fire cover assembly 100 is located above the gas distribution plate 200 and is provided with a plurality of fire hole arrays. Any array of fire holes includes fire holes 1001 arranged in a circumferential array along the fire lid assembly 100. Wherein the outlet of one first air flow channel is communicated with one fire hole array, and the outlet of one second air flow channel is communicated with one fire hole array.

By adopting the combustor provided by the embodiment of the disclosure, the gas distribution plate is provided with the plurality of first gas flow channels and the plurality of second gas flow channels, and the premixed gas is divided, so that the premixed gas flowing through all the first gas flow channels of the gas distribution plate can flow out through the fire hole arrays corresponding to the premixed gas, and the premixed gas flowing through all the second gas flow channels of the gas distribution plate can flow out through the fire hole arrays corresponding to the premixed gas, thereby effectively increasing the flow path of the premixed gas.

Optionally, the fire lid assembly 100 includes a plurality of sub fire lid assemblies. Any one of the fire cover sub-assemblies is provided with two fire hole arrays. One array of fire holes includes fire holes 1001 arranged along a peripheral array of sub-fire cap assemblies. Another array of fire holes includes fire holes 1001 running along the inner perimeter array of the sub-fire cap assemblies.

Fig. 3 shows the flow direction of the premixed gas in all the first gas flow channels of the gas-distributing plate 200. Two arrows from the circumference of the fire cover assembly to the center of the cavity 3001 indicate the flow direction of the fourth ring fire and the second ring fire, respectively. Wherein the fourth ring fire exits through the first outboard flow passage 2001 and the second ring fire exits through the first inboard flow passage 2002. Wherein the first airflow channel includes a first outboard airflow channel 2001 and a first inboard airflow channel 2002.

Fig. 4 shows the flow direction of the premixed gas in all the second air flow passages of the air distributor 200. Two arrows from the circumference of the fire cover assembly to the center of the cavity 3001 indicate the flow directions of the fifth and third ring fires, respectively. Wherein the fifth ring fire flows out through the second outside air flow passage 2003 and the third ring fire flows out through the second middle air flow passage 2004.

As shown in fig. 3 and 4, an embodiment of the present disclosure provides a burner including a burner assembly 300, a gas distributor 200, and a fire cover assembly 100. The burner assembly 300 includes a cavity 3001, a first injection pipe 3002 and a second injection pipe 3003. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The cavity 3001 further includes a first barrel 3001a and a second barrel 3001 b. The first barrel 3001a is communicated with the first injection pipe 3002, and encloses a first air inlet passage 10 therein. The second cylinder 3001b is in communication with the second injection tube 3003, is disposed along the circumferential direction of the first cylinder 3001a, is disposed coaxially with the first cylinder 3001a, and defines a second air intake passage 20 together with the first cylinder 3001 a. The air-distribution tray 200 includes a plurality of first air flow passages and a plurality of second air flow passages. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20. The fire cover assembly 100 is located above the gas distribution plate 200 and is provided with a plurality of fire hole arrays. Any array of fire holes includes fire holes 1001 arranged in a circumferential array along the fire lid assembly 100. Wherein the outlet of one first air flow channel is communicated with one fire hole array, and the outlet of one second air flow channel is communicated with one fire hole array.

By adopting the combustor provided by the embodiment of the disclosure, the premixed gas respectively enters the plurality of first air flow channels along the first air inlet passage and enters the plurality of second air flow channels along the second air inlet passage, and on the basis of effectively avoiding the heating effect of the combustor from being influenced by the failure of part of paths, the premixed gas can be prevented from generating interference among different air inlet passages.

Fig. 4 shows the flow direction of the premixed gas in the third air flow passage of the air distributor 200. The arrow in the middle of the fire lid assembly indicates the flow direction of the fifth ring fire. Wherein the fifth ring fire flows out through the third inner airflow channel 2005. Wherein the third air flow channel includes a third inner air flow channel 2005.

Referring to fig. 4, an embodiment of the present disclosure provides a burner including a burner assembly 300, a gas distributor 200, and a fire cover assembly 100. The burner assembly 300 includes a furnace chamber 3001, a first injection pipe 3002, a second injection pipe 3003, and a third injection pipe 16. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The cavity 3001 further includes a first barrel 3001a, a second barrel 3001b and a third barrel 3001 c. The first barrel 3001a is communicated with the first injection pipe 3002, and encloses a first air inlet passage 10 therein. The second cylinder 3001b is in communication with the second injection tube 3003, is disposed along the circumferential direction of the first cylinder 3001a, is disposed coaxially with the first cylinder 3001a, and defines a second air intake passage 20 together with the first cylinder 3001 a. The third cylinder 3001c is communicated with the third injection pipe 16 and is disposed inside the first cylinder 3001 a. The third cylinder 3001c internally encloses the third air intake passage 30. The air-distribution tray 200 includes a plurality of first air flow passages, a plurality of second air flow passages, and a third air flow passage. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20. The third airflow passage communicates with the second intake passage 20. The fire cover assembly 100 is located above the gas distribution plate 200 and is provided with a plurality of fire hole arrays. Any array of fire holes includes fire holes 1001 arranged in a circumferential array along the fire lid assembly 100. Wherein the outlet of one first air flow channel is communicated with one fire hole array, and the outlet of one second air flow channel is communicated with one fire hole array.

By adopting the combustor provided by the embodiment of the disclosure, the third air inlet passage is enclosed in the third cylinder, so that premixed gas can flow into the third air flow channel along the third air inlet passage, the flow distribution effect of the gas distribution disc is further enhanced, and the flow path of the premixed gas is increased.

Referring to fig. 2, an embodiment of the present disclosure provides a burner including a burner assembly 300, a gas distributor 200, and a fire cover assembly 100. The burner assembly 300 includes a furnace chamber 3001, a first injection pipe 3002, a second injection pipe 3003, a first ignition needle 3004 and a second ignition needle 3005. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The cavity 3001 further includes a first barrel 3001a and a second barrel 3001 b. The first barrel 3001a is communicated with the first injection pipe 3002, and encloses a first air inlet passage 10 therein. The second cylinder 3001b is in communication with the second injection tube 3003, is disposed along the circumferential direction of the first cylinder 3001a, is disposed coaxially with the first cylinder 3001a, and defines a second air intake passage 20 together with the first cylinder 3001 a. The first ignition needle 3004 is disposed through the gas distribution plate 200. The second ignition needle 3005 is disposed through the gas distribution plate 200 and spaced apart from the first ignition needle 3004 in the circumferential direction of the second cylinder 3001 b. The distance between the first ignition needle 3004 and the fire hole array corresponding to the first air flow passage located at the middle of the air distribution plate 200 is greater than the distance between the first ignition needle 3004 and the fire hole array of the second air flow passage located at the middle of the air distribution plate 200. And/or, the distance between the second ignition needle 3005 and the fire hole array of the first air flow channel located in the middle of the air distribution plate 200 is smaller than the distance between the second ignition needle 3005 and the fire hole array of the second air flow channel 200 located in the middle of the air distribution plate 200. The air-distribution tray 200 includes a plurality of first air flow passages and a plurality of second air flow passages. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20. The fire cover assembly 100 is located above the gas distribution plate 200 and is provided with a plurality of fire hole arrays. Any array of fire holes includes fire holes 1001 arranged in a circumferential array along the fire lid assembly 100. Wherein the outlet of one first air flow channel is communicated with one fire hole array, and the outlet of one second air flow channel is communicated with one fire hole array.

By adopting the combustor provided by the embodiment of the disclosure, the structure design and the position design of the double ignition needles are adopted, the premixed gas flowing out through the outlets of all the second airflow channels can be ignited through the first ignition needles, and the premixed gas flowing out through the outlets of all the first airflow channels can be ignited through the second ignition needles, so that the firepower of different airflow channels can be independently controlled. Meanwhile, the firepower of different airflow channels can be independently adjusted, so that the multistage adjustment of the heating area of the burner can be realized, and the multistage adjustment is adapted to the requirement of the user that the heating area is changeable during cooking. Wherein, the gas distribution plate is provided with gas flow channels positioned on different circular lines. The first air flow channel positioned in the middle of the air distribution plate refers to an air flow channel positioned on a circular line in the middle of the air distribution plate.

Optionally, the first firing pin 3004 discharges a distance greater than or equal to 3 mm and less than or equal to 5 mm, and/or the second firing pin 3005 discharges a distance greater than or equal to 3 mm and less than or equal to 5 mm. In this way, the first ignition needles can be used for carrying out ignition operation on the premixed gas of all the second air flow channels, the second ignition needles can be used for carrying out ignition operation on the premixed gas of all the first air flow channels, the two ignition needles are independently ignited respectively, and the adjustment of the fire power of the gas stove is realized by controlling the ignition needles.

Alternatively, as shown in fig. 2 and 3, the outer wall of the second cylinder 3001b is provided with a first boss 30011b and a second boss 30012 b. The first ignition needle 3004 is detachably provided to the first boss 30011 b. The second ignition needle 3005 is detachably provided to the second boss 30012 b. Therefore, the mounting difficulty of the first ignition needle and the second ignition needle is reduced.

Alternatively, as shown in fig. 2 and 5, the first thermocouple 3007 is circumferentially disposed on the first barrel 3001 a. The first thermocouple 3007 is located inside the second barrel 3001b for maintaining flame-stable combustion of all the second air flow passages as well as the third air flow passage. In this way, the first thermocouple and the first ignition needle are matched with the valve body, so that premixed gas flowing out of all the second air flow channels and the third air flow channels can be ignited, and the fire power of the premixed gas can be adjusted.

Alternatively, as shown in fig. 2 and 5, a second thermocouple 3008 is disposed in the circumferential direction of the second cylinder 3001b, and the second thermocouple 3008 is disposed adjacent to the second ignition needle 3005, so as to maintain stable flame combustion in all the first gas flow passages. In this way, the second thermocouple and the second ignition needle are matched with the valve body, so that premixed gas flowing out of all the first gas flow channels can be ignited, and the fire power of the premixed gas can be adjusted.

Referring to fig. 6, an embodiment of the present disclosure provides a burner including a burner assembly 300 and a gas distributor 200. The burner assembly 300 includes a cavity 3001, a first injection pipe 3002, a second injection pipe 3003, and a heat insulation gasket. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The air-distribution tray 200 includes a plurality of first air flow passages and a plurality of second air flow passages. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20. The heat insulating gasket is located between the first injection pipe 3002, the second injection pipe 3003 and the furnace cavity 3001, and the first injection pipe 3002, the second injection pipe 3003 and the furnace cavity 3001 are detachably disposed at the air inlet 30011 of the furnace cavity 3001 through the heat insulating gasket. Wherein, an air inlet 30011 is disposed at a side of the furnace chamber 3001 opposite to the first injection pipe 3002 and the second injection pipe 3003.

Adopt the combustor that this disclosed embodiment provided, thermal-insulated gasket is for having the thermal-insulated material of heat-proof quality, through draw at first penetrating pipe, second and draw and set up thermal-insulated gasket between pipe and the furnace chamber, can reduce the heat-conduction between furnace chamber and first penetrating pipe, the second penetrates the pipe effectively to reduce the calorific loss of combustor, promote the efficiency of combustor.

Optionally, the first injection pipe 3002 and the second injection pipe 3003 are hermetically connected to an end surface of the furnace cavity 3001. The heat insulating gasket is disposed on the contact surfaces of the first injection pipe 3002, the second injection pipe 3003 and the furnace chamber 3001. Like this, strengthen first injection pipe, second and draw the sealed effect of penetrating pipe and furnace chamber 3001 to can increase the thermal resistance between first injection pipe, second and draw penetrating pipe and the furnace chamber 3001, reduce heat transfer, thereby reduce the calorific loss of combustor, promote the efficiency of combustor.

Optionally, the first injection pipe 3002, the second injection pipe 3003 and the cavity 3001 are detachably disposed in the air inlet 30011 of the cavity 3001 by screws. Therefore, the first injection pipe and the second injection pipe are convenient to disassemble and assemble.

The operation of the burner is described below with reference to fig. 3 and 4:

the gas and the air are respectively mixed in the first injection pipe 3002 and the second injection pipe 3003 to form premixed gas.

The premixed gas in the first injection pipe 3002 simultaneously enters the first outer gas flow channel 2001 and the first inner gas flow channel 2002 after passing through the first gas inlet passage 10, and because the first outer gas flow channel 2001 and the first inner gas flow channel 2002 are respectively communicated with the fire hole arrays of the fire cover assembly 100, the premixed gas can respectively flow out through the fire hole arrays corresponding to the first outer gas flow channel 2001 and the first inner gas flow channel 2002. The second ignition needle 3005 and the first thermocouple 3007 cooperate with each other to ignite the premixed gas flowing out of the first outer airflow passage 2001 and the first inner airflow passage 2002 to form a fourth ring fire and a second ring fire, respectively.

Meanwhile, the premixed gas in the second injection pipe 3003 simultaneously enters the second outer airflow channel 2003 and the second middle airflow channel 2004 after passing through the second air inlet passage 20, and since the second outer airflow channel 2003 and the second middle airflow channel 2004 are respectively communicated with the fire hole arrays of the fire cover assembly 100, the premixed gas can respectively flow out through the fire hole arrays corresponding to the second outer airflow channel 2003 and the second middle airflow channel 2004. The first ignition needle 3004 and the second thermocouple 3008 cooperate with each other to ignite the premixed gas flowing out of the second outer airflow channel 2003 and the second middle airflow channel 2004 to form a third ring fire and a first ring fire, respectively.

At the same time, the premixed gas in the third ejector 3006 enters the third inner air flow path 2005 through the third air intake passage 30. Since the third inner air flow channels 2005 are respectively communicated with the fire hole arrays of the fire cover assembly 100, the premixed gas can flow out through the fire hole arrays corresponding to the third inner air flow channels 2005. The first ignition needle 3004 and the second thermocouple 3008 cooperate with the valve body to ignite the premixed gas flowing out of the third inner air flow channel 2005 to form a fifth ring fire.

The embodiment of the disclosure also provides a gas stove, which comprises a burner. The burner includes a burner assembly 300 and a gas distribution plate 200. The burner assembly 300 includes a cavity 3001, a first injection pipe 3002 and a second injection pipe 3003. A first air inlet passage 10 communicated with the first injection pipe 3002 and a second air inlet passage 20 communicated with the second injection pipe 3003 are provided in the cavity 3001. The air-distribution tray 200 includes a plurality of first air flow passages and a plurality of second air flow passages. A plurality of first air flow passages communicate with the first intake passage 10. The plurality of second airflow passages communicate with the second intake passage 20.

By adopting the gas stove provided by the embodiment of the disclosure, the premixed gas entering the first air flow channel through the first injection pipe and the premixed gas entering the second air flow channel through the second injection pipe are separated and flow through different air flow channels respectively, and the flow path of the premixed gas is increased, so that even if part of the air flow channels fail or the flow of the premixed gas in the part of the air flow channels is unstable, the premixed gas can flow through other air flow channels, and the heating effect of the burner is effectively prevented from being influenced due to the failure of the part of the air flow channels.

The disclosed embodiment also provides a gas distribution plate, which generally comprises a lower gas distribution plate 210 and an upper gas distribution plate 290, wherein the lower gas distribution plate 210 and the upper gas distribution plate 290 are connected in a sealing manner to prevent the leakage of the gas flowing through. Alternatively, after the two are fastened, a threaded connection or a welded connection can be adopted.

Optionally, the connecting end surfaces of the lower air distribution plate 210 and the upper air distribution plate 290 are planar. The sealing performance of the connection is improved.

Optionally, the lower gas distributor plate 210 is a casting or a forged part.

In the embodiment of the present disclosure, the provided gas distribution trays are mainly classified into three types according to the structure of the lower gas distribution tray 210.

Referring to fig. 1 to 3, a first type of gas distribution plate provided in the embodiments of the present disclosure is described, which includes a lower gas distribution plate 210 and an upper gas distribution plate 290, where the lower gas distribution plate 210 has one or more gas inlet partitions, and each gas inlet partition is provided with a partition structure for partitioning the gas inlet partition into a plurality of gas inlet channels; the upper gas distribution plate 290 comprises gas distribution channels located on different circular lines from inside to outside, and the gas distribution channels of part or all of the non-adjacent circular lines are communicated with the same gas inlet channel. The air inlet channel is communicated with the air dividing channels positioned on different circular lines to form a first air flow channel and a second air flow channel.

The first kind of gas dish that divides of this disclosed embodiment, through the setting of the subregion of admitting air on the lower gas dish 210 for the gas that gets into by an air inlet on the lower gas dish 210 can be shunted to the gas channel that divides on the different loop lines on the last gas dish 290 of dividing, the gas area of dividing of gas has been enlarged, the reposition of redundant personnel area of gas has been enlarged, the variety of the mode of putting out a fire has been increased, the flexibility of heating area has been increased, can satisfy multiple culinary art demands, for example, fry in shallow oil, cook the heating scene such as searing.

In some embodiments, the lower gas distribution plate 210 comprises a lower plate body 211, one or more gas inlet partition members, and a partition member 222, the lower plate body 211 having an inner ring gas inlet 201 and a plurality of annular gas inlet slots; each air inlet partition member has an air inlet cavity 221 and is arranged on the lower disc body 211 along the radial direction of the lower disc body 211; the partition member 222 is disposed in the intake chamber 221 of the intake partition member, and partitions the intake chamber 221 into a plurality of intake passages; and one air inlet passage is correspondingly communicated with one annular air inlet groove of the lower disc body 211.

In this embodiment, the number of the annular intake grooves of the lower disc 211 is equal to the number of the intake passages partitioned in the intake partition member, and one intake passage is correspondingly communicated with one annular intake groove. Then, the fuel gas that every annular air inlet groove inserts flows into the branch gas passageway on the nonadjacent ring line through corresponding inlet channel, has realized the branch gas of one-to-many, has increased the flexibility of dividing the gas.

In some embodiments, the lower disc 211 includes a disc wall 2111 and a plurality of annular members, a through hole is provided at the center of the disc wall 2111, and the plurality of annular members are concentrically provided on the disc wall 2111 to form the inner ring air inlet 201 and the plurality of annular air inlet grooves. In this embodiment, the through holes on the surrounding plate wall 2111 of the innermost annular member form the inner-ring air inlet 201, and the remaining annular members are concentrically arranged to form a plurality of annular air inlet grooves. In this embodiment, a plurality of annular air inlet grooves provided on the tray wall 2111 of the lower tray body 211 are butted with the air outlet of the burner to receive the gas. The number of the annular air inlet grooves is determined according to actual requirements.

Optionally, the annular member is an annular rib member having a height.

Optionally, the number of annular inlet slots is 2. As shown in fig. 8, the inner annular member 212 surrounds the through hole in the disk wall 2111, the middle annular member 213 and the outer annular member 214 are concentrically disposed on the disk wall 2111 in this order from the inside to the outside, and the outer annular member 214 is disposed on the edge of the disk wall 2111, and the inner ring intake port 201, the middle annular intake groove 202, and the outer annular intake groove 203 are formed in this order on the lower disk 211.

Alternatively, the intake chamber 221 of the intake partition member is partitioned into two intake passages by the partition member 222; respectively, defined as an outer intake passage 2211 and an inner intake passage 2212. The outer intake passage 2211 communicates with the outer annular intake groove 203, and the inner intake passage 2212 communicates with the middle annular intake groove 202.

Alternatively, the plate wall 2111 of the lower plate 211 is a curved surface, and a plurality of annular members are disposed on the concave wall surface, and the intake partition member is disposed on the convex wall surface of the lower plate 211.

Optionally, an air replenishment passage 270 is formed between a portion of the outwardly convex wall surface of the tray wall 2111 of the lower tray body 211 and the intake partition member. As shown in fig. 7, an air supply passage 270 is formed between a part of the outer convex wall surface of the tray wall 2111 of the lower tray body 211 and the outer walls of two adjacent intake partition members. An air supplement outlet is provided at a corresponding position on the upper air distribution plate 290. The contact amount of the fuel gas with the air in the combustion process is improved, and the combustion efficiency is improved.

In the embodiment of the present disclosure, the number of the intake partition members is not limited, and may be determined according to actual needs. Optionally, the intake partition member is 1, 2, 3, 4 or more. When the number of the intake partition members is plural, the intake partition members are uniformly distributed on the lower disc 211 in the radial direction around the center of the lower disc 211.

Alternatively, when there are a plurality of intake partition members, the end surfaces of the intake chambers 221 of the plurality of intake partition members are located on the same horizontal plane, which is the connecting end surface of the lower air distribution plate 210. Improving the sealing connection with the connecting end surface of the upper gas distribution plate 290.

In some embodiments, the intake partition member extends radially of the lower disc 211 to the outside of the lower disc 211. The gas distribution area of the gas distribution plate is increased.

In the embodiment of the present disclosure, the structure of the intake partition member is not limited, and the intake air may be guided into the air distribution passage of part or all of the non-adjacent circular lines of the upper air distribution plate 290.

In some embodiments, in the radial direction of the lower disk body 211, the bottom wall of the intake partition member is bent toward the upper air distribution disk 290 side and the circumferential width of the intake chamber 221 is enlarged. That is, the bottom wall of the inlet channel is curved to be close to the side of the upper gas distribution plate 290, the inlet gas is guided to flow to the upper gas distribution plate 290, and the expanded inlet channel is used for buffering the outlet pressure, so that the gas can more smoothly enter the gas distribution channel of the upper gas distribution plate 290. In this embodiment, the air intake partition member is in a bucket shape, and a cavity of the bucket-shaped air intake partition member is the air intake cavity 221.

In some embodiments, the intake chamber 221 of the intake partition member includes a radial portion and a circumferential portion, the circumferential portion being located on the outside and the circumferential portion having a circumferential width greater than the radial portion; each of the intake passages (the inner intake passage 2212 and the outer intake passage 2211) partitioned by the partition member 222 includes a radial extension and a circumferential extension that communicate. The peripheral circumferential structure of the air inlet partition is increased, the air distribution area of the outer ring can be increased, meanwhile, the supporting area of the upper air distribution disc 290 is also increased, and the structure of the air distribution disc is more stable.

Optionally, the air inlet cavity 221 is shaped like a letter "7" as a whole, and the air inlet channel is also shaped like a letter "7".

Alternatively, the radial portion of the inlet chamber 221 also tends to expand radially, as does the radial extension of each inlet passage.

In some embodiments, the dividing member 222 has a shape of "7", and one "7" shaped dividing member 222 is disposed in the intake chamber 221 to divide two or more intake passages.

Optionally, a "7" -shaped partition member 222 is disposed inside the "7" -shaped intake cavity 221 in a conformal manner, and divides the radial portion and the circumferential portion of the intake cavity 221 into two parts, so as to partition and form two "7" -shaped intake channels. As shown in fig. 7, a 7-shaped partition member 222 is provided at a circumferential portion of the intake chamber 221 in a lateral direction and at a radial portion of the intake chamber 221 in a vertical direction, thereby partitioning two intake passages.

Optionally, the partition member 222 is a partition rib plate, which is vertically disposed in the intake chamber 221. The volume of the partition member 222 in the intake chamber 221 is reduced, increasing the intake air amount.

Alternatively, the upper end surface of the vertically arranged partition member 222 is flush with the end surface (upper end surface) of the intake chamber 221. The sealing performance of each air inlet channel constructed after the lower air distribution plate 210 is connected with the upper air distribution plate 290 is improved.

In the embodiment of the present disclosure, in the lower gas distribution plate 210, the communication manner between the gas inlet partition member 220 and the annular gas inlet groove on the lower plate 211 is not limited, as long as the communication is realized, and the circulation of the gas is ensured. For example, an intake port communicating with the intake passage is provided on the disc wall 2111 corresponding to each annular intake groove. As shown in fig. 9 for the middle ring intake 2021 and the outer ring intake 2031.

In some embodiments, the bottom wall of the intake partition member 220 is disposed on the tray wall 2111 of the lower tray body 211, and the tray wall 2111 and the bottom wall at a position where the intake passage overlaps the annular intake groove are opened with an intake port communicating therewith.

In some embodiments, the tray wall 2111 of the lower tray 211 is curved, and is inserted into a portion of the curved tray wall 2111 such that the bottom wall of the intake partition member 220 opposes the convex wall surface of the tray wall 2111 of the lower tray 211, such that the end surface of the intake chamber 221 of the intake partition member 220 is flush with the center of the convex wall surface of the curved tray wall 2111; and the annular structural part interfering with the air inlet channel is removed, and one air inlet channel is only correspondingly communicated with one annular air inlet groove.

As shown in connection with fig. 10-12, embodiments of the present disclosure provide a second type of gas panel, including a lower gas panel 210 and an upper gas panel 290, the lower gas panel 210 having one or more first gas entry subsections 230; the upper gas distribution plate 290 includes gas distribution channels in different circular lines from inside to outside, and some or all of the gas distribution channels in non-adjacent circular lines communicate with one or more first gas inlet partitions 230.

The second class of minute gas dish of this disclosed embodiment, through the setting of the first subregion 230 that admits air on the minute gas dish 210 down for the gas that gets into by an air inlet on the minute gas dish 210 down can be shunted to the branch gas passageway on the different circular lines on the minute gas dish 290, has enlarged the branch gas area of gas, has increased the variety of the mode of putting out a fire, has increased heating area's flexibility, can satisfy multiple culinary art demands, for example, fry in shallow oil, cook etc. and heat the scene.

In some embodiments, the lower air distribution plate 210 includes a lower plate body 211 and a first partition rib 240. A penetrating inner annular member 212 (forming the inner ring intake port 201) is provided at the center of the first disk surface of the lower disk body 211, and a plurality of annular intake grooves surrounding the inner annular member 212 are provided on the second disk surface. The first separating rib 240 has a first arc segment 241 and a first straight segment 242, and the two ends of the first arc segment 241 are respectively provided with the first straight segment 242; the first partition rib 240 is disposed on the first plate surface of the lower plate 211. The ends of the first straight segment 242 are connected to the inner annular member 212; the area between the first partition bead 240 and part of the inner annular member 212 forms the first intake partition 230; the first intake partition 230 communicates with an annular intake slot.

In this embodiment, the first partition rib 240 is used to partition the lower gas distribution plate 210 into the first gas inlet partition 230, so that the gas distribution channels on the non-adjacent circular lines are communicated with the first gas inlet partition 230, and the gas/premixed gas introduced into one annular gas inlet groove can flow into the gas distribution channels on the non-adjacent circular lines through the corresponding gas inlet channels, thereby realizing one-to-many gas distribution and increasing the flexibility of gas distribution. The first intake partition 230 is generally fan-shaped in shape.

Optionally, the first intake partition 230 communicates with the inner annular intake slot.

In some embodiments, the lower disc 211 further comprises a plurality of annular members, which are disposed on the second disc surface of the lower disc 211 from inside to outside by taking the inner annular member 212 as a center, so as to form a plurality of annular air inlet grooves. In this embodiment, a plurality of annular air inlet grooves disposed on the second plate surface of the lower plate 211 are butted with the air outlet of the burner to receive the gas/premixed gas. The number of the annular air inlet grooves is determined according to actual requirements.

Optionally, the number of annular inlet slots is 2. As shown in fig. 11 and 15, the inner annular member 212 is centered, the middle annular member 213 and the outer annular member 214 are concentrically disposed on the second disk surface from the inside to the outside, and the inner ring intake port 201, the middle annular intake groove 202, and the outer annular intake groove 203 are formed on the lower disk body 211.

Optionally, first intake partition 230 communicates with intermediate annular intake slot 202. The gas distribution area is enlarged.

In the disclosed embodiment, the inner annular member 212, the middle annular member 213, and the outer annular member 214 are each a circular ring member having a certain height. The height of each annular member may be different, depending on the actual configuration. Optionally, the inner annular member 212 is at the same height as the outer annular member 214 above the first disc surface of the lower disc 211 such that the connecting end surface of the lower gas-distributing disc 210 is planar. Optionally, the height of the annular member located on the outer side of the second disk face is greater than the height of the annular member located on the inner side. As shown in fig. 11 and 15, the outer annular member 214 has a height greater than the height of the middle annular member 213.

Optionally, the first separating rib 240 includes a first separating rib 240 i and/or a first separating rib 240 ii. The first separating rib 240 i is an arc line with a first arc line segment 241 being greater than or equal to a semicircular arc, and the first separating rib 240 ii is an arc line with a first arc line segment 241 being less than a semicircular arc.

Optionally, the number of the first separating ribs 240 is one or more, when the number of the first separating ribs 240 is multiple, the plurality of first separating ribs 240 are arranged around the inner annular member 212 at intervals, and the first arc segments 241 of the plurality of first separating ribs 240 are located on the same ring line.

In the embodiment of the present disclosure, the shape and the number of the first partitioning ribs 240 are not limited, and may be determined according to the division of the lower air-distributing tray 210 into one or more first air-intake partitions 230.

Optionally, the first separating rib 240 includes a first separating rib 240 i. In this embodiment, the number of the first partition ribs 240 is one, and the lower gas distribution plate 210 is divided into the first gas inlet partitions 230. Optionally, the central angle of the first arc segment 241 of the first separating rib 240 i is 120 ° to 180 °. Optionally, the central angle of the first arc segment 241 of the first separating rib 240 i is 140 ° to 160 °. Alternatively, the first arc segment 241 of the first separating rib 240 i has a central angle of 150 °.

Optionally, the first separating rib 240 includes a first separating rib 240 ii. In this embodiment, the number of the first separating ribs 240 ii is 2, 3, 4 or more, and the uniform air intake is only required. Alternatively, as shown in fig. 14, the first partition ribs 240, the number of which is 2, are symmetrically disposed around the inner ring member 212. As shown in fig. 10 and 16, the first partition ribs 240 are 4 in number and are uniformly provided around the inner ring member 212.

Optionally, the first separating rib 240 includes a first separating rib 240 i and a first separating rib 240 ii. In this embodiment, there is one first separating rib 240 i and a plurality of first separating ribs 240 ii. The central angle of the first separating rib 240 i is 90 ° to 120 °. The first separating ribs 240 ii are disposed between two first straight lines 242 of the first separating ribs 240 i.

In some embodiments, the lower gas distribution plate 210 further includes a second partition rib 250 having a second arc segment 251 and a second straight segment 252, wherein the second straight segment 252 is disposed on a first end of the second arc segment 251; the second partition rib 250 is disposed in the first air intake partition 230, and the second end of the second arc segment 251 is connected to the first straight segment 242 of the first partition rib 240, and the end of the second straight segment 252 is connected to the inner annular member 212; a first air intake passage 231 is formed between the outer side of the second partitioning rib 250 and the first partitioning rib 240; the first air intake passage 231 communicates with the annular air intake groove on the inner side.

In this embodiment, the second separating rib 250 is shaped like a "7", the second arc segment 251 is disposed along the circular line of the lower gas distribution plate 210, and the second straight segment 252 is not limited to be disposed along the radial direction of the lower gas distribution plate 210. Then, the second partition rib 250 shaped like a letter "7" is buckled on the first straight line segment 242 of the first air intake partition 230 shaped like a sector as a whole, and the formed first air intake passage 231 includes the first radial air intake portion 2311 and the first circumferential air intake portion 2312 which are communicated with each other. Also, the number of the second partition ribs 250 may be one or two.

Alternatively, as shown in fig. 10 and 16, if the number of the second separating ribs 250 provided in each first separating rib 240 is one, the second ends of the second arc-shaped line segments 251 are connected to the second side first straight line segments 2422 of the first separating ribs 240, the second straight line segments 252 are close to the first side first straight line segments 2421 of the first separating ribs 240 to form the first radial air inlet portions 2311, and the first circumferential air inlet portions 2312 are formed between the second arc-shaped line segments 251 and the first arc-shaped line segments 241 of the first separating ribs 240. In the present embodiment, the first intake passage 231 has a 7-shape.

Optionally, as shown in fig. 14, the number of the second separating ribs 250 arranged in each first separating rib 240 is two, the second ends of the second arc segments 251 of the two second separating ribs 250 are respectively connected to the first straight segments 242 on both sides of the first separating rib 240, the second arc segments 251 of the two second separating ribs 250 are located on the same circular line, and a first circumferential air inlet portion 2312 is formed between the second arc segments 251 of the two second separating ribs 250 and the first arc segments 241 of the first separating rib 240; the second straight sections 252 have spaces therebetween to form first radial air intake portions 2311. In the present embodiment, the first intake passage 231 has a "T" shape.

In some embodiments, an end of the first straight line segment 242 of the first partition rib 240 for forming the first air intake channel 231 is bent to form a first bent segment 243, and the first bent segment 243 is connected with the adjacent first straight line segment 242; a communication port is formed on the lower disc body 211 between the inner annular member 212 and the first bending section 243 and is communicated with the inner annular air inlet groove. In this embodiment, an arc-shaped channel is formed between the first bending section 243 and the inner annular member 212, the arc-shaped channel corresponds to the inner annular air inlet groove (e.g., the middle annular air inlet groove 202), and a communication port is formed on the arc-shaped channel to form the middle annular air inlet 2021. Compared with the structure in which the end of the first straight line segment 242 is not bent as shown in fig. 13, the intake area of the middle ring intake port 2021 is increased, and the intake air amount is increased.

As shown in fig. 10 and 11, the lower air distribution plate includes 4 first partition ribs 240, and one second partition rib 250 is disposed in each first partition rib 240, wherein the first side first straight line part 2421 and the second partition rib 250 form a first radial air inlet portion 2311 of the first air inlet channel 231. Therefore, the end of the first side first straight line part 2421 of one of the first separating ribs 240 is bent to form a first bent section 243, and the first bent section 243 is connected with the adjacent first straight line part 242 (e.g., the second side first straight line part 2422 of the adjacent other first separating rib 240).

Optionally, the first intake passage 231 communicates with the middle annular intake groove 202. Alternatively, the first radial intake portion 2311 of the first intake passage 231 communicates with the intermediate annular intake groove 202. The gas distribution area is increased.

In the embodiment of the present disclosure, the first partition rib 240 partitions the first disk surface of the lower disk 211 into two regions, one of which is the aforementioned first intake partition 230, and the other of which is defined as a second intake partition. The first air inlet partition 230 is communicated with part or all of the air distribution channels which are not adjacent to the circular line, and the rest air distribution channels are communicated with the second air inlet partition, so that air supply of all the air distribution channels on the upper air distribution plate 290 is realized.

In some embodiments, lower plate 210 further comprises one or more second intake subsections having second intake passages 232 configured therein; the second intake passage 232 communicates with a part of the gas distribution passage of the upper gas distribution plate 290. In this embodiment, the second air intake passage 232 is configured to guide intake air to a set partial air distribution passage, so that the flexibility of air distribution is further improved.

Optionally, when the lower gas distribution plate 210 includes the first partition rib 240, the lower gas distribution plate 210 further includes a third annular partition rib 260, which is surrounded on the outer side of the first partition rib 240; the region between the first partition bead 240 and the third annular partition bead 260 forms the second air intake passage 232; and the second intake passage 232 includes the second radial intake portion 2321 and the second circumferential intake portion 2322 that communicate. The second air inlet passage 232 is communicated with the annular air inlet groove on the outer side to be connected with fuel gas. In this embodiment, a second circumferential air intake portion 2322 is disposed between the plurality of first arc segments 241 and the third annular separating rib 260, a second radial air intake portion 2321 is formed between two adjacent first straight segments 242 (which may be two adjacent straight segments 242 of different first separating ribs 240, or two first straight segments 242 of one first separating rib 240), and according to the number of the first separating ribs 240, the second radial air intake portion 2321 may be one or more, so as to increase the number of air intake ports, improve the air intake amount, and further improve the uniformity of air intake.

Optionally, when the number of the first separating ribs 240 is multiple, a partition plate is radially disposed between the first arc segment 241 and the third annular separating rib 260 of each first separating rib 240 to divide the second circumferential air inlet 2322 into multiple sections, and each section of the circumferential air inlet is communicated with one second radial air inlet 2321. A plurality of second intake passages 232 are formed.

Optionally, the second inlet passage 232 communicates with the outer annular inlet groove 203. Optionally, the second radial inlet 2321 of the second intake passage 232 communicates with the outer annular inlet slot 203. The gas distribution area is increased.

In the embodiment of the present disclosure, depending on whether the air supplement channel 270 is provided, a third type of air distribution plate is further provided, as shown in fig. 10 to 18, and includes a lower air distribution plate 210 and an upper air distribution plate 290, where the lower air distribution plate 210 has one or more first air intake partitions 230, and a partition structure for partitioning the first air intake partitions 230 into a first air intake channel 231 and an air supplement region is provided in the first air intake partition 230; the upper gas distribution plate 290 includes gas distribution channels in different circular lines from inside to outside, and some or all of the gas distribution channels in non-adjacent circular lines communicate with one or more first gas inlet partitions 230.

In the third type of air distribution plate according to the embodiment of the present disclosure, an air supplement region is provided on the lower air distribution plate 210 for supplementing air to improve the combustion rate of the fuel gas. In this embodiment, the upper air-distributing plate 290 is provided with an air supplement inlet structure at a position corresponding to the air supplement region, and air supplement is completed in cooperation with the air supplement inlet structure.

In some embodiments, the third type of lower gas distribution plate 210 includes a lower plate body 211, a first partition rib 240, and a second partition rib 250. A penetrating inner annular member 212 is disposed at the center of the first disk surface of the lower disk 211, and a plurality of annular intake grooves surrounding the inner annular member 212 are disposed on the second disk surface. The first separating rib 240 has a first arc segment 241 and a first straight segment 242, and the two ends of the first arc segment 241 are respectively provided with the first straight segment 242; the first partition rib 240 is disposed on the first plate surface of the lower plate 211. The ends of the first straight segment 242 are connected to the inner annular member 212; the area between the first partition bead 240 and part of the inner annular member 212 forms the first intake partition 230; the first intake partition 230 communicates with an annular intake slot. The second separating rib 250 is provided with a second arc line segment 251 and a second straight line segment 252, and the first end of the second arc line segment 251 is provided with the second straight line segment 252; the second dividing rib 250 is disposed in the first air intake partition 230, and the second end of the second arc segment 251 is connected to the first straight segment 242 of the first dividing rib 240, and the end of the second straight segment 252 is connected to the inner annular member 212; the second partition rib 250 partitions the first intake partition 230 into the independent first intake passage 231 and the air supplement region; an air supplement inlet 271 is formed on the lower plate 211 of the air supplement region.

That is, the third type air distribution plate is based on the second type air distribution plate, the area enclosed by the partial first straight line 242 of the first separating rib 240 and buckled by the second separating rib 250 is limited as the air supplement area, the lower plate body 211 of the area is provided with the air supplement inlet 271, the air supplement outlet arranged on the upper air distribution plate 290 is matched, and an air channel is formed between the air supplement inlet 271 and the air supplement outlet, so that the air entering from the air supplement inlet 271 flows out from the air supplement outlet and is mixed with the gas for combustion, the air quantity is increased, and the combustion efficiency is improved.

In the third type gas distribution plate according to the embodiment of the present disclosure, the structural content of the same component as that of the second type gas distribution plate refers to the related content of the second type gas distribution plate, and is not described herein again.

Optionally, an air make-up inlet 271 is provided outside the annular inlet slot of the lower disc 211. The air is introduced into the inner side of the air distribution plate from the outside, and the combustion efficiency is improved.

In some embodiments, the ends of the first straight segments 242 of the first separating ribs 240 used to form the air supplement regions are bent to form second bent segments 244, and the second bent segments 244 are connected with adjacent first/second straight segments 242/244; an air outlet-side passage 274 is formed between the inner annular member 212 and the second bend 244. In this embodiment, the air outlet side passage 274 communicates with the air supplement inlet 271 of the air supplement region to form an air passage, so that air can be introduced between the inner ring fire and the middle ring fire/the middle ring fire and the outer ring fire, and the air supplement amount can be increased to improve the combustion efficiency.

In the present embodiment, the manner of forming the air outlet-side passage 274 and the structure formed are different for different numbers of arrangement of the second partitioning ribs 250.

Alternatively, as shown in the lower gas distribution plate of fig. 14, two second partition ribs 250 are provided in each of the first partition ribs 240. The first straight line sections (2421, 2422) on the two sides of the first separating rib 240 are respectively buckled with one second separating rib 250 to form an air supplementing area; the ends of the first straight line sections (2421, 2422) at both sides are bent outwards to form a second bent part 244, the two second bent parts 244 are connected to form an integral second bent part 244, and the air outlet side passage 274 is formed between the integral second bent part 244 and the inner ring member 212. The air make-up is increased.

Alternatively, referring to a lower gas distribution plate shown in fig. 13, a second partition rib 250 is provided in each of the first partition ribs 240. The second side first straight line part 2422 of the first separating rib 240 is buckled with the second separating rib 250 to form an air supplementing area; the second bent part 244 may be formed by bending an end of the second side first straight line part 2422 outward and connected to the first side first straight line part 2421 of the adjacent other first partition rib 240, and the air outlet side passage 274 may be formed between the second bent part 244 and the inner annular member 212. The air make-up is increased.

In some embodiments, as shown in fig. 17, the lower air distributor 210 further comprises an air deflector 280 disposed at the air make-up inlet 271 for directing the air flow. In this embodiment, the structure and the arrangement of the air deflector 280 are not limited as long as the air deflector can guide the air to flow between different air distribution channels of the upper air distribution plate 290.

Optionally, the air deflector 280 includes an arc deflector 281, and the arc deflector 281 is disposed at the air supplement inlet 271 along the ring shape of the lower disk 211 in such a manner as to be inclined from the outside to the inside. And air outside the air distribution plate is guided to the inside. In this embodiment, the arc deflector 281 of the air deflector 280 is concentrically disposed with the annular members of the lower disk 211 and is located outside the plurality of annular members.

Optionally, a curved baffle 281 is provided on the inside edge or radially in the middle of the air make-up inlet 271; when the arc flow guide 281 is provided in the middle of the air replenishment inlet 271 in the radial direction, the air replenishment inlet 271 is divided into the inner air replenishment inlet 271 and the outer air replenishment inlet 271. The gas-supplying device is used for supplying air for the gas on the inner gas-distributing channel and the outer gas-distributing channel respectively, and improves the combustion effect.

Optionally, an arc deflector 281 is disposed at the middle of the air supplement inlet 271 in the radial direction, and the upper end edge of the arc deflector 281 extends upward to be flush with the upper end edge of the first partition rib 240; the lower end extends downwards to a height not exceeding the height of the outer annular member. So that the air replenishment inlet 271 is partitioned into the inner air replenishment inlet 271 and the outer air replenishment inlet 271.

Optionally, a curved baffle 281 is provided on the inside edge of the air make-up inlet 271, and the curved baffle 281 extends downwardly to a height corresponding to the height of the outside annular member. The drainage function is realized, and meanwhile, the drainage device is matched with an annular component on the outer side to play a certain supporting role.

In the above embodiment, "height" refers to a height from the second plate surface of the lower plate body 211.

Optionally, the air deflector 280 further comprises a straight plate 282 extending radially outward from the second plate surface of the lower plate body 211 and having one end connected to both ends of the arc deflector 281. For embodiments in which the curved baffle 281 is disposed in a radially intermediate portion of the air make-up inlet 271, the provision of the straight plate 282 circumferentially separates the underside of the lower disk 211 into an inboard air inlet passage 272 and an outboard air inlet passage 273. The two straight plates 282 at either end of one arc deflector 281 define an outside air inlet passage 273 therebetween and the two straight plates 282 at the adjacent ends of two adjacent arc deflectors 281 define an inside air inlet passage 272 therebetween. Promoting the stability and uniformity of the air flow.

Like the second type air distribution plate, in the third type air distribution plate according to the embodiment of the present disclosure, the first partition rib 240 partitions the first plate surface of the lower plate 211 into two regions, one is the first air intake partition 230, and the other region is defined as the second air intake partition. The first air inlet partition 230 is communicated with part or all of the air distribution channels which are not adjacent to the circular line, and the rest air distribution channels are communicated with the second air inlet partition, so that air supply of all the air distribution channels on the upper air distribution plate 290 is realized.

Thus, in some embodiments, lower gas distributor plate 210 further includes one or more second gas inlet subsections, with second gas inlet passages 232 configured therein; the second intake passage 232 communicates with a part of the gas distribution passage of the upper gas distribution plate 290. In this embodiment, the second air intake passage 232 is configured to guide intake air to a set partial air distribution passage, so that the flexibility of air distribution is further improved. In this embodiment, the structure and implementation structure of the second air inlet channel 232 may refer to the content of the corresponding portion of the second type air distribution plate, and are not described herein again.

In the air distribution plate according to the embodiment of the present disclosure, the upper air distribution plate 290 of the three types of air distribution plates has the same structural form, that is, the upper air distribution plate 290 of each of the embodiments described below can be applied to each of the lower air distribution plates 210 to form one type of air distribution plate.

In some embodiments, as shown in fig. 7 to 17 in combination, the upper gas distribution disk 290 includes an upper disk body 291 and a plurality of annular gas distribution members, and a through hole (as the inner ring gas distribution port 204) is provided in the center of the upper disk body 291; a plurality of annular gas distributing members, each of which is configured with a gas distributing passage, are coaxially disposed from the inside to the outside on a side disk surface (e.g., a second disk surface) of the upper disk body 291. The gas distribution channels of some or all of the non-adjacent annular gas distribution members are communicated with the same gas inlet structure on the lower gas distribution plate 210.

In the embodiment of the present disclosure, the same air inlet structure on the lower air distribution plate 210 is different according to the aforementioned first to third air distribution plates.

Optionally, for the first type of gas distribution plate, the gas distribution channels of some or all of the non-adjacent annular gas distribution members on the upper gas distribution plate 290 are communicated with the same gas inlet channel on the lower gas distribution plate 210. In this embodiment, the same intake passage is either the inner intake passage 2212 or the outer intake passage 2211.

Optionally, for the second type of gas distribution plate, the gas distribution channels of some or all of the non-adjacent annular gas distribution members on the upper gas distribution plate 290 are communicated with the first gas inlet partition 230 on the lower gas distribution plate 210. And, when the lower gas distribution plate 210 includes the second intake passage 232, the gas distribution passages of the remaining annular gas distribution members communicate with the second intake passage 232.

Optionally, for the third type of gas distribution plate, the gas distribution channels of some or all of the non-adjacent annular gas distribution members on the upper gas distribution plate 290 are communicated with the first gas inlet channel 231 on the lower gas distribution plate 210.

In the upper gas distribution plate 290 according to the embodiment of the present disclosure, the other side plate surface (e.g., the first plate surface) of the upper plate body 291 is a connection end surface of the upper gas distribution plate 290 and the lower gas distribution plate 210.

In some embodiments, as shown in FIG. 15 and in diagram 17, the other side of the disk surface of the upper disk 291 is planar. The connecting end face of the lower air distribution plate 210 is also a plane, and the two are fixedly connected after being butted.

In some embodiments, as shown in fig. 8, a fitting member 292 is further disposed on the other side plate surface of the upper plate body 291, and the fitting member 292 is in fitting and abutting engagement with the air intake partition (i.e., the air intake partition member 220) on the lower air distribution plate 210 to form a plurality of air intake passages. The air inlet channel sealing performance is improved, and air leakage is prevented.

Optionally, the engagement member 292 includes ribs disposed on the other side plate surface of the upper plate body 291 in a manner to fit with the air distribution structure on the lower air distribution plate 210.

In the first type of air distribution plate shown in fig. 8, the shape of the ribs provided on the other side plate surface of the upper plate body 291 coincides with the shape of the intake partition member 220 on the lower air distribution plate 210 and the partition member 222 provided therein.

Optionally, a fitting member 292 protrudes on the other side disk surface of the upper disk body 291. The horizontal position of the upper plate body 291 is properly increased, the sectional area of the air supplement passage 270 is increased, and the air supplement amount is increased.

In the embodiment of the present disclosure, the through hole formed on the upper disk body 291 is an inner ring gas distribution opening 204, which is communicated with the inner ring gas inlet 201 on the lower gas distribution disk 210 to form an inner ring gas channel.

Optionally, an upper inner ring member 293 is disposed on the circumference of the through hole of the upper disc body 291, such that the gas outlet surface of the inner ring gas channel is flush with the upper end surface of each annular gas distribution member. Of course, as shown in fig. 10 and 14, the upper inner ring member 293 may not be provided, and may be determined according to actual requirements.

In the upper gas distribution plate 290 of the embodiment of the present disclosure, the number of the annular gas distribution members is not limited, and may be determined according to actual requirements. In some embodiments, as shown in fig. 7, 14 and 16, the number of the annular gas distribution members is 4, and the upper gas distribution plate 290 is provided with a first annular gas distribution member 294, a second annular gas distribution member 295, a third annular gas distribution member 296 and a fourth annular gas distribution member 297 which are respectively configured with a first gas distribution channel 205, a second gas distribution channel 206, a third gas distribution channel 207 and a fourth gas distribution channel 208 from inside to outside. And part or all of the non-adjacent annular gas distribution components are communicated with the gas inlet structure.

Alternatively, for the first type of air distribution plate, the first air distribution passage 205 and the third air distribution passage 207 are both communicated with the aforementioned inner intake passage 2212, and the second air distribution passage 206 and the fourth air distribution passage 208 are both communicated with the outer intake passage 2211.

Alternatively, for the second type of gas panel, the first gas distribution passage 205 and the third gas distribution passage 207 are both in communication with the aforementioned first gas intake partition 230, and the second gas distribution passage 206 and the fourth gas distribution passage 208 are both in communication with the second gas intake passage 232.

Alternatively, for the third type of gas panel, the first gas distribution passage 205 and the third gas distribution passage 207 are both in communication with the aforementioned first gas intake partition 230, and the second gas distribution passage 206 and the fourth gas distribution passage 208 are both in communication with the second gas intake passage 232.

Optionally, each annular gas distribution member comprises two annular ribs, and the annular channel between the two annular ribs is the gas distribution channel.

In the upper air distribution plate 290 according to the embodiment of the present disclosure, a plurality of annular air distribution members are disposed on a side plate surface (e.g., a second plate surface) of the upper plate body 291 from inside to outside around the through hole, and the plurality of annular air distribution members may be uniformly distributed on the second plate surface in a radial direction or may be non-uniformly disposed on the second plate surface in a predetermined layout.

In some embodiments, the plurality of annular gas distribution members form one or more sets of gas passages in different annular zones of the upper disc body 291 in a manner that two or more annular gas distribution members are adjoined in sequence from inside to outside in a radial direction of the upper gas distribution disc 290 to form one set of gas passages. The same air inlet channel (inner air inlet channel or outer air inlet channel, first type air distribution plate)/first air inlet partition 230 (second type air distribution plate)/first air inlet channel 231 (third type air distribution plate) on the lower air distribution plate 210 is respectively communicated with the inner air distribution channel or the outer air distribution channel in each group of air channels. In this embodiment, divide the integration of gas channel, simplified the quantity of fire lid, set up a fire lid on a set of gas channel, according to the branch gas channel quantity on this group of gas channel, it can to set up the fire hole ring of the equal quantity on corresponding fire lid.

In this embodiment, the ring area of the upper plate 291 may be set according to the heating area. The ring zone is divided into an inner ring zone, a middle ring zone and an outer ring zone. The first and second

gas distribution passages

205 and 206 are adjoined to form a set of middle ring gas passages in the middle ring area, and the third and fourth

gas distribution passages

207 and 208 are adjoined to form a set of outer ring gas passages in the outer ring area. That is, when only the middle annular intake groove 202 of the lower air distribution plate 210 is supplied with air, the gas can be delivered to the first air distribution passage 205 and the third air distribution passage 207 via the inner side intake passage 2212/the first air intake partition 230/the first intake passage 231 of the intake partition member 220, expanding the air distribution area. Wherein, the inner ring gas channel is a gas channel of the inner ring area.

In the embodiment of the present disclosure, an air supplement outlet is further disposed on the upper disk body 291 of the upper air distribution disk 290, especially for the first air distribution disk and the third air distribution disk. So as to introduce air into the interior during combustion and improve combustion efficiency. The position and shape of the air supply outlet are not limited, and the air supply outlet may be designed in combination with the air supply inlet 271/air passage on the lower air distribution plate 210.

In some embodiments, the air supplement outlets include an inner air supplement outlet 275, the inner air supplement outlet 275 disposed between the through hole of the upper disk 291 and the inner first annular air distribution member (first annular air distribution member 294), and communicating with the air supplement inlet 271/air supplement channel 270 configured on the lower air distribution disk 210.

In some embodiments, the air supplement outlets further include an outer air supplement outlet 276 disposed on the upper disc body 291 between adjacent annular air distribution members and corresponding to the air supplement inlet 271 disposed on the lower air distribution disc 210.

In this embodiment, after the upper air-distributing plate 290 is butted against the lower air-distributing plate 210, the inside air supplement outlet 275 and the outside air supplement outlet 276 can be communicated with the same air supplement channel 270 (as shown in fig. 7, 10 and 14); or may communicate with a different air make-up passage 270.

As shown in fig. 16, for the third class of air-separation discs, the inside air supplement outlet 275 communicates with the inside air inlet passage 272, and the outside air supplement outlet 276 communicates with the outside air inlet passage 273.

Alternatively, the air supplement outlets are disposed on different circumferential lines of the upper plate 291, and a plurality of air supplement outlets on the same circumferential line are uniformly distributed.

Alternatively, the inside air supplement outlet 275 is provided on a loop line between the through hole of the upper disc 291 and the inside first annular air distribution member.

Optionally, an outside air replenishment outlet 276 is provided on the lower disc 211 between the second air distribution passage 206 and the third air distribution passage 207.

In the embodiment of the present disclosure, the shape of the air replenishment outlet is not limited, and the air replenishment outlet is provided based on the maximum communication between the installation position of the air replenishment outlet and the air passage, thereby increasing the air replenishment amount.

Optionally, the inside air supplement outlet 275 is provided in a triangular shape.

Alternatively, the outside air supplement outlets 276 are arranged in an arc along a circular line.

Of course, in the upper air distribution disc 290 of the embodiment of the present disclosure, an air outlet structure for communicating with the air inlet channel is provided on the upper disc body 291 in the air distribution channel of each annular air distribution member, and the air outlet is communicated with the inner air inlet channel 2212/the first air inlet partition 230/the first air inlet channel 231 or the second air inlet channel 232/the outer air inlet channel 2211 of the air distribution channel where the air outlet is located. The number and the shape of the arrangement are not limited and can be determined according to actual needs. According to the gas distribution channels, the gas outlets are respectively defined as a first gas outlet 2901, a second gas outlet 2902, a third gas outlet 2903 and a fourth gas outlet 2904, the first gas outlet 2901 is arranged in the first gas distribution channel 205, the second gas outlet 2902 is arranged in the second gas distribution channel 206, the third gas outlet 2903 is arranged in the third gas distribution channel 207, and the fourth gas outlet 2904 is arranged in the fourth gas distribution channel 208.

Optionally, the air outlets are arranged on the lower tray body 211 in the air distribution channel along the shape, and the air outlets in the same air distribution channel are uniformly arranged along the circumferential direction. The uniformity of giving vent to anger is improved. In this embodiment, on the premise of ensuring the structural strength of the upper air distribution plate 290 and satisfying the air output, the circumferential length of the air outlet is as large as possible, and the air output is increased.

Alternatively, the length of the air outlet in the circumferential direction on the air distribution passage on the outer side is greater than the length of the air outlet in the circumferential direction on the air distribution passage on the inner side in the radial direction. The gas distribution amount on the outer side gas distribution channel is improved, and the heating efficiency of the outer side gas distribution channel is improved.

Optionally, a slope structure 298 is disposed at the same side edge in the circumferential direction of the plurality of air outlets on the same air distribution channel. The gas can be promoted to flow in the same direction after entering the gas distribution channel, and the gas outlet stability is improved.

In some embodiments, the upper gas-distributing disk 290 includes a disk-shaped body (like the upper disk 291) configured with a through-going hole and a plurality of gas outlets; the plurality of gas distribution ports are distributed on different circular lines of the disc-shaped body to form gas distribution channels. Such as the upper gas distribution plate 290 shown in fig. 10 and 11. Simple structure and simple forming.

In some embodiments, for the second type gas distribution plate and the third type gas distribution plate, the second circumferential inlet 2322 of the second inlet channel 232 of the lower gas distribution plate 210 and the outermost annular gas distribution member (the fourth annular gas distribution member 297) of the upper gas distribution plate 290 are correspondingly arranged to make the outer circumferential surfaces of the gas distribution plates flush, so as to facilitate sealing connection, and facilitate fitting with other structural members of the combustor, and the like.

Alternatively, the first circumferential air intake portion 2312 of the first air intake passage 231 of the lower air distribution plate 210 is provided corresponding to the annular air distribution member (third annular air distribution member 296) on the secondary outer side of the upper air distribution plate 290.

In this embodiment, the remaining annular gas distribution members may be disposed so long as they have an overlapping area with the inner inlet passage 2212, the first inlet partition 230, the first inlet passage 231, or the outer inlet passage 2211, the second inlet passage 232, which are correspondingly communicated with each other, and an outlet structure is opened in the upper plate 291 of the overlapping area to communicate with each other.

In the embodiment of the present disclosure, yielding structures are further disposed at corresponding positions of the lower gas distribution plate 210 and the upper gas distribution plate 290, and are used for disposing structural members such as an injection pipe, an ignition needle, a thermocouple, and the like. The yielding structure can be a yielding hole or a yielding notch. The specific arrangement position of the abdicating structure is determined according to the positions of structural components such as an injection pipe, an ignition needle, a thermocouple and the like arranged on the furnace end assembly. A plurality of fixing holes are also formed for fixedly connecting the bolts of the upper air distribution plate 290 and the lower air distribution plate 210, and the fixing holes comprise circular holes.

In the embodiment of the present disclosure, the air inlet partition on the lower air distribution plate 210 is different in structure in each type of air distribution plate, and the adopted upper air distribution plate 290 is universal, that is, the structure of the upper air distribution plate 290 shown in fig. 10 is also suitable for the lower air distribution plates 210 of other types to form a plurality of air distribution plates.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a combustor, includes furnace end subassembly and branch gas dish, the furnace end subassembly includes the furnace chamber, first draws penetrates pipe and second and draws and penetrate the pipe, be equipped with in the furnace chamber with first inlet channel that first draws penetrates the pipe intercommunication and the second inlet channel that the pipe intercommunication is drawn to the second, its characterized in that divides the gas dish to include:

a plurality of first air flow passages communicating with the first air intake passage;

a plurality of second airflow passages communicating with the second intake passage.

2. The burner of claim 1, further comprising:

the fire cover assembly is positioned above the gas distribution plate and is provided with a plurality of fire hole arrays, and any fire hole array comprises fire holes distributed in an array mode along the circumferential direction of the fire cover assembly;

wherein the outlet of one first air flow channel is communicated with one fire hole array, and the outlet of one second air flow channel is communicated with one fire hole array.

3. The burner of claim 2, wherein the burner assembly further comprises:

the first barrel is communicated with the first injection pipe, and the first air inlet passage is enclosed inside the first barrel;

and the second cylinder is communicated with the second injection pipe, is arranged along the circumferential direction of the first cylinder and is coaxially arranged with the first cylinder, and defines the second air inlet passage together with the first cylinder.

4. The burner of claim 3, wherein the burner assembly further comprises:

a third ejector tube;

the third cylinder is communicated with the third injection pipe and arranged in the first cylinder, and a third air inlet passage is defined in the third cylinder;

the air distribution plate further includes a third air flow passage communicating with the third air intake passage.

5. The burner of claim 4, wherein the burner assembly further comprises:

the first ignition needle penetrates through the gas distribution disc, and the distance between the first ignition needle and a fire hole array corresponding to a first air flow channel in the middle of the gas distribution disc is greater than the distance between the first ignition needle and a fire hole array of a second air flow channel in the middle of the gas distribution disc; and/or the presence of a gas in the gas,

and the second ignition needle penetrates through the gas distribution disc and is arranged at intervals with the first ignition needle along the circumferential direction of the second cylinder, and the distance between the second ignition needle and the fire hole array of the first air flow channel positioned in the middle of the gas distribution disc is smaller than that between the second ignition needle and the fire hole array of the second air flow channel positioned in the middle of the gas distribution disc.

6. The burner of claim 5, wherein the outer wall of the second cylinder is provided with a first boss and a second boss, the first ignition needle is detachably disposed on the first boss, and the second ignition needle is detachably disposed on the second boss.

7. The burner of claim 5, wherein the first barrel is circumferentially provided with a first thermocouple located inside the second barrel for maintaining flameless combustion in all of the second gas flow passages and the third gas flow passage.

8. The burner of claim 5, wherein a second thermocouple is disposed circumferentially of the second barrel, the second thermocouple being disposed adjacent to the second firing pin for maintaining flameless combustion in all of the first gas flow passages.

9. The burner of any of claims 1 to 8, wherein the burner assembly further comprises:

the heat insulation gasket is positioned between the first injection pipe, the second injection pipe and the furnace chamber, and the first injection pipe, the second injection pipe and the furnace chamber are detachably arranged at an air inlet of the furnace chamber through the heat insulation gasket;

the side of the furnace chamber opposite to the first injection pipe and the second injection pipe is provided with the air inlet.

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