CN217684980U - Furnace end and combustor - Google Patents

Abstract

The application relates to the technical field of kitchen equipment, discloses a furnace end, includes: the first side wall is annular and defines an inner space, and a secondary air outlet is formed in the surface of the first side wall; the third side wall is annular and is arranged on the outer side of the first side wall, a fuel gas flow channel is defined by the third side wall and the first side wall, and a secondary air inlet is formed in the surface of the third side wall corresponding to the secondary air outlet; the partition board is used for enclosing a secondary air channel, is arranged in the fuel gas channel and is communicated with a secondary air inlet and a secondary air outlet; the partition board includes: a top side wall, a vertical wall, and an inclined wall connecting the top side wall and the vertical wall. The present application further discloses a burner.

Description

Furnace end and combustor

Technical Field

The application relates to the technical field of kitchen equipment, for example, relate to a furnace end and combustor.

Background

The main structure of the air-fuel gas mixture cooker comprises a cooker surface, a fire cover, a burner, a cooker frame, a valve body, a control component, a pipeline and the like. The burner can mix air-fuel mixture with air and deliver the mixture to the inner fire hole and the outer fire hole of the burner.

In the correlation technique, a furnace end of combustor is provided, furnace end body is provided with the outer loop air outlet channel that is used for outer loop fire to burn required gaseous including the inner ring air inlet chamber and the outer loop air mixing chamber of coaxial setting in the outer loop air mixing chamber, still is equipped with the secondary air who feeds through with the inner ring air inlet chamber on the inner wall of outer loop air mixing chamber and supplyes the passageway for provide secondary air for inner ring fire burning.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: due to the existence of the secondary air channel, the flow resistance of the air-fuel mixture in the burner gas flow channel is increased in the rising process.

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 burner, which can reduce the flow resistance of air-fuel mixture in a gas flow passage.

A burner, comprising:

the first side wall is annular and defines an inner space, and a secondary air outlet is formed in the surface of the first side wall;

the third side wall is annular and is arranged on the outer side of the first side wall, a fuel gas flow channel is defined by the third side wall and the first side wall, and a secondary air inlet is formed in the surface of the third side wall corresponding to the secondary air outlet;

the partition board is used for enclosing a secondary air channel, is arranged in the fuel gas channel and is communicated with a secondary air inlet and a secondary air outlet; the partition board includes: a top side wall, a vertical wall, and an inclined wall connecting the top side wall and the vertical wall.

In some embodiments, the sloped wall comprises:

the first inclined wall is arranged below the top side wall, is connected with the first side edge of the top side wall and forms an obtuse angle with the top side wall;

the second inclined wall is arranged below the top side wall and connected with the second side edge of the top side wall, the second side edge is opposite to the first side edge, and an included angle between the second side edge and the top side wall is an obtuse angle.

In some embodiments, the first sloped wall and the second sloped wall are symmetrically disposed.

In some embodiments, the first sloped wall and the second sloped wall are inclined at an angle of 45 ° to 80 °.

In some embodiments, the vertical wall comprises:

the first vertical wall is connected with the first inclined wall;

and the second vertical wall is opposite to the first vertical wall in position and is connected with the second inclined wall.

In some embodiments, the area of the first sloped wall and the area of the second sloped wall are both less than the area of the top sidewall.

In some embodiments, the separator further comprises:

and the bottom side wall is arranged below the top side wall, one side edge is connected with the first vertical wall, and the other side edge is connected with the second vertical wall and is opposite to the top side wall.

In some embodiments, the number of secondary air channels is multiple and symmetrically distributed.

In some embodiments, the spacer is uniform in thickness.

The disclosed embodiment also provides a burner, including:

a burner as provided in any of the preceding embodiments;

the fire cover is arranged above the furnace end.

The furnace end and the combustor that this disclosed embodiment provided can realize following technological effect: a secondary air channel is formed by enclosing a partition plate in a gas flow channel of the burner, so that air on the outer side of the third side wall flows out from an inner space formed by enclosing the first side wall through the secondary air channel as secondary air, and sufficient secondary air is supplemented for combustion of air-fuel mixture; further, the partition plate is provided with the ceiling wall, the vertical wall, and the inclined wall connecting the ceiling wall and the vertical wall, so that the flow resistance of the air-fuel mixture in the air-fuel flow passage due to the inclined wall is reduced when the air-fuel mixture flows through the partition plate. Therefore, under the condition of ensuring the supplement of secondary air, the air-fuel mixture in the furnace end flows more smoothly, and the flame combustion is more stable.

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 structural view of a burner provided in an embodiment of the present disclosure;

fig. 2 is a top view of another burner provided in an embodiment of the present disclosure;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic view of a combustor according to an embodiment of the present disclosure.

Reference numerals:

10. a furnace end; 100. a first side wall; 110. a second side wall; 120. a third side wall; 130. an interior space;

20. a partition plate; 210. a secondary air inlet; 220. a secondary air outlet; 230. a top sidewall; 240. a vertical wall; 250. an inclined wall; 2501. a first sloped wall; 2502. a second sloped wall;

30. a fuel gas flow channel; 310. an inner ring runner; 320. an outer ring runner;

40. a fire cover; 450. an outer fire hole; 460. an inner fire hole.

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 cases, well-known structures and tanks may simplify the illustration, to simplify the drawings.

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, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and embodiments thereof, and are not intended to limit the indicated tanks, 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; either directly or indirectly through an intermediary, or internal communication between two tanks, 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.

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.

As shown in fig. 1 to 3, an embodiment of the present disclosure provides a furnace end 10, including: a first sidewall 100, a third sidewall 120 and a partition 20, wherein the first sidewall 100 has a ring shape, defines an inner space 130, and is provided with a secondary air outlet 220 on a surface thereof; the third sidewall 120 is annular, is disposed outside the first sidewall 100, and defines the fuel gas flow channel 30 together with the first sidewall 100, and is provided with a secondary air inlet 210 corresponding to the secondary air outlet 220; the partition plate 20 encloses a secondary air passage, is arranged in the fuel gas flow passage 30, and is communicated with a secondary air inlet 210 and a secondary air outlet 220; the separator 20 includes: a top sidewall 230, a vertical wall 240, and an inclined wall 250 connecting the top sidewall 230 and the vertical wall 240.

In the embodiment of the present disclosure, a secondary air channel is enclosed by the partition plate 20 in the gas flow channel 30 of the burner 10, so that the air outside the third sidewall 120 flows out from the inner space 130 enclosed by the first sidewall 100 as the secondary air through the secondary air channel, and sufficient secondary air is supplemented for the combustion of the air-fuel mixture; further, providing the bulkhead 20 in the form of including the top side wall 230, the vertical wall 240, and the inclined wall 250 connecting the top side wall 230 and the vertical wall 240 enables the air-fuel mixture in the fuel gas flow passage 30 to have a reduced flow resistance due to the inclined wall 250 when flowing through the bulkhead 20. Thus, the air-fuel mixture in the burner 10 flows more smoothly while ensuring the supply of the secondary air, and the flame combustion is more stable.

As shown in conjunction with fig. 1 to 4, in the embodiment of the present disclosure, the upper portion of the inner space 130 communicates with the outside, and the air outside the third sidewall 120 enters the secondary air passage from the secondary air inlet 210, then flows out from the secondary air outlet 220 into the inner space 130, and then flows out from the upper portion of the inner space 130. The secondary air flows to the inner fire hole 460 of the fire cover 40 from the inner space 130 to supplement the secondary air required by the combustion of the air-fuel mixture, so that the air-fuel mixture can be fully combusted, and more smoke is avoided; meanwhile, the redundant secondary air and the flue gas can flow to the upper edge of the outer fire hole 450 along the bottom of the boiler and are combusted by the air-fuel mixed gas at the outer fire hole 450 for continuous use.

In the embodiment of the present disclosure, the air-fuel mixture flows from bottom to top in the fuel gas flow channel 30, the secondary air channel is disposed in the fuel gas flow channel 30, and a certain resistance is generated to the flow of the air-fuel mixture, the inclined wall 250 is disposed between the vertical wall 240 of the partition plate 20 and the top sidewall 230 for connection, so that the air-fuel mixture flows above the top sidewall 230 under the guiding effect of the inclined wall 250 when flowing through the inclined wall 250, and compared with the case that the vertical wall 240 and the top sidewall 230 are directly connected, the flow resistance in the air flow rising process is reduced, the flow is smoother, and the flame combustion is more stable.

Optionally, the partition 20 further includes a bottom side wall, the vertical wall 240, the inclined wall 250 and the top side wall 230 collectively enclosing a secondary air passage.

Optionally, the spacer 20 is of uniform thickness. Thus, the flow resistance of the air flow rising in the gas flow passage 30 can be reduced, and the flow rate of the secondary air can be ensured as much as possible.

Alternatively, the secondary air inlet 210, the secondary air outlet 220, and the secondary air channel are identical in cross-sectional shape. Thus, air flows smoothly when passing through the secondary air channel, and a certain flow rate can be ensured.

Optionally, the burner 10 further includes a second annular sidewall 110, the second sidewall 110 is disposed between the first sidewall 100 and the third sidewall 120, an inner annular flow channel 310 is formed between the second annular sidewall 110 and the first sidewall 100, an outer annular flow channel 320 is formed between the second annular sidewall 120, and the partition plate 20 penetrates through the second sidewall 110. Thus, the inclined wall 250 of the partition plate 20 can reduce the flow resistance of the air-fuel mixture in the inner ring flow path 310 and the outer ring flow path 320, and can maintain a constant flow velocity, thereby satisfying the demand for flame-stable combustion.

In some embodiments, the inclined wall 250 includes a first inclined wall 2501 and a second inclined wall 2502, the first inclined wall 2501 is disposed below the top side wall 230 and connected to a first side edge of the top side wall 230 at an obtuse angle to the top side wall 230; the second inclined wall 2502 is disposed below the top sidewall 230 and connected to a second side edge of the top sidewall 230, which is disposed opposite to the first side edge and makes an obtuse angle with the top sidewall 230.

According to the burner 10 provided by the embodiment of the disclosure, the first inclined wall 2501 and the second inclined wall 2502 are oppositely arranged and connected with the top side wall 230, and both the included angle between the first inclined wall 2501 and the top side wall 230 and the included angle between the second inclined wall 2502 and the top side wall 230 are obtuse angles, so that the airflow of the air-fuel mixture can be guided to the upper part of the top side wall 230, the acting time of the airflow and a vertical surface is shortened, and the flow resistance of the airflow is reduced. The first and second inclined walls 2501 and 2502 form obtuse angles with the top side wall 230, and the cross-sectional area of the secondary air passage can be made as large as possible to allow more air to flow through the secondary air passage.

Optionally, the first and second sloped walls 2501, 2502 are uniform in thickness. Thus, the flow resistance of the air flow rising in the gas flow passage 30 can be reduced, and the secondary air can be kept at a certain flow rate to meet the requirement of stable flame combustion.

In some embodiments, the first angled wall 2501 and the second angled wall 2502 are symmetrically disposed. The first inclined wall 2501 and the second inclined wall 2502 are symmetrical, and the airflow flows upwards along the vertical wall 240, meets the first inclined wall 2501 and the second inclined wall 2502, and can flow uniformly and equally upwards from two sides of the top side wall 230, so that the airflow is more stable in flow as a whole, and stable combustion of flames is facilitated. Further, the first inclined wall 2501 and the second inclined wall 2502 are symmetrically disposed, and a constant flow rate of air in the secondary air passage can be ensured.

In some embodiments, the first and second sloped walls 2501, 2502 are sloped at an angle of 45 ° to 80 °. In this angular range, the flow resistance of the air flow is small. The inclination angle is an inclination angle of the first inclined wall 2501 and the second inclined wall 2502 with respect to the horizontal plane. Too small or too large an angle of inclination results in a large flow resistance of the air flow. Optionally, the first and second sloped walls 2501, 2502 are both sloped at an angle of 60 °. Optionally, the first and second sloped walls 2501, 2502 are both sloped at 75 °.

In some embodiments, the vertical wall 240 comprises a first vertical wall and a second vertical wall, wherein the first vertical wall is connected with the first sloped wall 2501; the second vertical wall is located opposite the first vertical wall and is connected to the second slanted wall 2502. The first vertical wall is connected to the top side wall 230 by a first slanted wall 2501 and the second vertical wall is connected to the top side wall 230 by a second slanted wall 2502. When the air-fuel mixture flows in the gas flow passage 30, a part of the gas flow meets the first vertical wall and the second vertical wall and flows upward along the vertical walls, and then flows to the upper side of the top side wall 230 by being guided by the first inclined wall 2501 and the second inclined wall 2502, respectively. The first and second inclined walls 2501 and 2502 reduce the flow resistance of the airflow during the ascent of the airflow.

Optionally, the vertical wall 240 includes a first vertical wall and a second vertical wall, wherein the first vertical wall is connected to the first inclined wall 2501, and the angle between the first inclined wall 2501 and the horizontal plane is 60 °; the second vertical wall is opposite to the first vertical wall and is connected with the second inclined wall 2502, and the included angle between the second inclined wall 2502 and the horizontal plane is 60 degrees and is symmetrically arranged with the first inclined wall 2501. When the air-fuel mixture flows in the gas flow passage 30, a part of the gas flow flows upward along the first vertical wall or the second vertical wall, and is guided by the first inclined wall 2501 or the second inclined wall 2502, respectively, so that the flow resistance is reduced.

In some embodiments, the burner 10 comprises: a first sidewall 100, a second sidewall 110, a third sidewall 120 and a partition 20, wherein the first sidewall 100 has a ring shape, defines an inner space 130, and is provided with a secondary air outlet 220 on a surface thereof; the third sidewall 120 is annular, is disposed outside the first sidewall 100, and defines the fuel gas flow channel 30 together with the first sidewall 100, and has a secondary air inlet 210 disposed at a surface corresponding to the secondary air outlet 220; the partition plate 20 encloses a secondary air passage, is arranged in the fuel gas flow passage 30, and is communicated with a secondary air inlet 210 and a secondary air outlet 220; the second sidewall 110 is disposed between the first sidewall 100 and the third sidewall 120, and forms an inner annular flow passage 310 with the first sidewall 100 and an outer annular flow passage 320 with the third sidewall 120; the partition 20 penetrates the second sidewall 110, and the partition 20 includes: a top sidewall 230, a bottom sidewall, a vertical wall 240, and an inclined wall 250 connecting the top sidewall 230 and the vertical wall 240.

According to the furnace end 10 provided by the embodiment of the disclosure, the secondary air channel is arranged in the furnace end 10 with the inner ring flow channel 310 and the outer ring flow channel 320, so that the air-fuel mixture in the inner ring flow channel 310 and the outer ring flow channel 320 can be guided by the inclined wall 250 of the partition plate 20 in the ascending process, the flow resistance is reduced, and the air-fuel mixture can be more stably combusted at the fire hole.

In some embodiments, the area of the first sloped wall 2501 and the area of the second sloped wall 2502 are both less than the area of the top sidewall 230. According to the burner 10 provided by the embodiment of the present disclosure, the area of the top side wall 230 of the partition plate 20 is larger than the areas of the first inclined wall 2501 and the second inclined wall 2502, so that the first inclined wall 2501 and the second inclined wall 2502 can play a role in guiding the air flow, and meanwhile, the secondary air in the secondary air channel can be ensured to have a larger flow rate, and the requirement of flame combustion stability can be met.

In some embodiments, the partition 20 further includes a bottom sidewall disposed below the top sidewall 230, one side edge connected to the first vertical wall and the other side edge connected to the second vertical wall, and located opposite the top sidewall 230. The bottom side wall forms the bottom of the secondary air channel, the top side wall 230 forms the top of the secondary air channel, a first vertical wall and a second vertical wall are respectively arranged on two sides of the bottom side wall, the first vertical wall is connected with one side of the top side wall 230 through a first inclined wall 2501, the second vertical wall is connected with the other side of the top side wall 230 through a second inclined wall 2502, and thus the bottom side wall, the first vertical wall, the first inclined wall 2501, the top side wall 230, the second inclined wall 2502 and the second vertical wall form the secondary air channel. The secondary air passage communicates the secondary air inlet 210 and the secondary air outlet 220, so that the secondary air can pass through and flow out from the inner space 130 enclosed by the first side wall 100 to supplement secondary air for flame combustion, so that the air-fuel mixture can be completely combusted.

In some embodiments, the number of secondary air channels is multiple and symmetrically distributed. Thus, the inclined walls 250 of the partition plate 20 are provided in plural numbers, and the air-fuel mixture flowing through the outside of the secondary air passage can be guided to reduce the resistance to the air-fuel mixture during the ascent. The secondary air channel sets up a plurality ofly, can mend sufficient secondary air for air-fuel mixer's burning to guarantee the abundant burning of air-fuel mixture.

Optionally, the number of secondary air channels is four and symmetrically distributed. Thus, the amount of the secondary air to be supplemented is appropriate, and the air-fuel mixture can be sufficiently combusted, so that the flame can be kept stable. If the secondary air is supplemented excessively, the flame is easy to leave the flame and even to extinguish; if the secondary air supply is insufficient, the flame is not sufficiently combusted, and more smoke is easily generated.

Alternatively, the number of secondary air passages is four and symmetrically distributed, the number of inclined walls 250 is four, and each inclined wall 250 includes one first inclined wall 2501 and one second inclined wall 2502. Thus, sufficient secondary air is supplemented to the combustion of the air-fuel mixture, and the smooth flow of the air-fuel mixture can be kept.

In some embodiments, the burner 10 comprises: a first sidewall 100, a third sidewall 120 and a partition 20, wherein the first sidewall 100 has a ring shape, defines an inner space 130, and is provided with a secondary air outlet 220 on a surface thereof; the third sidewall 120 is annular, is disposed outside the first sidewall 100, and defines the fuel gas flow channel 30 together with the first sidewall 100, and has a secondary air inlet 210 disposed at a surface corresponding to the secondary air outlet 220; the partition plate 20 encloses a secondary air passage, is disposed in the fuel gas flow passage 30, and communicates the secondary air inlet 210 and the secondary air outlet 220; the separator 20 includes: a top sidewall 230, a vertical wall 240, and an inclined wall 250 connecting the top sidewall 230 and the vertical wall 240; the number of the secondary air channels is four and the secondary air channels are symmetrically distributed.

In this way, the four secondary air passages can ensure sufficient combustion of the air-fuel mixture, and when the air-fuel mixture flows in the fuel gas flow passage 30 and meets the four secondary air passages, the air flow flows through the space between the secondary air passages, the air flow close to the secondary air passages can flow upward of the secondary air passages under the guidance of the inclined wall 250, and the flow resistance is reduced.

In some embodiments, the thickness of the separator 20 is uniform. The uniform thickness of the partition 20 can save materials on the one hand, and can meet the requirements that the inclined wall 250 reduces the airflow resistance and the secondary air channel flows more secondary air on the other hand.

The embodiment of the present disclosure further provides a burner, which includes a furnace end 10 and a fire cover 40 provided as in any one of the foregoing embodiments, wherein the fire cover 40 is disposed above the furnace end 10. By providing the burner 10, the air outside the third side wall 120 can flow out as secondary air from the inner space 130 surrounded by the first side wall 100 through the secondary air passage, and sufficient secondary air can be supplemented for the combustion of the air-fuel mixture; the partition plate 20 constituting the secondary air passage has an inclined wall 250, and the flow resistance of the air-fuel mixture in the gas flow passage 30 can be reduced by the inclined wall 250 when the air-fuel mixture flows through the partition plate 20. Thus, the air-fuel mixture in the burner 10 flows more smoothly while ensuring the supply of the secondary air, so that the flame formed by the burner is more stably burned.

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 (10)

1. A burner, comprising:

the first side wall is annular and defines an inner space, and a secondary air outlet is formed in the surface of the first side wall;

the third side wall is annular and is arranged on the outer side of the first side wall, a fuel gas flow channel is defined by the third side wall and the first side wall, and a secondary air inlet is formed in the surface of the third side wall corresponding to the secondary air outlet;

the partition board is used for enclosing a secondary air channel, is arranged in the fuel gas channel and is communicated with the secondary air inlet and the secondary air outlet; the separator includes: a top sidewall, a vertical wall, and an inclined wall connecting the top sidewall and the vertical wall.

2. The burner of claim 1, wherein the inclined wall comprises:

the first inclined wall is arranged below the top side wall, is connected with the first side edge of the top side wall and forms an obtuse angle with the top side wall;

the second inclined wall is arranged below the top side wall and connected with the second side edge of the top side wall, and the second side edge is opposite to the first side edge and forms an obtuse angle with the included angle of the top side wall.

3. The burner of claim 2, wherein the first sloped wall and the second sloped wall are symmetrically disposed.

4. The burner of claim 3, wherein the first inclined wall and the second inclined wall are inclined at an angle of 45 ° to 80 °.

5. The burner of claim 2, wherein the vertical wall comprises:

the first vertical wall is connected with the first inclined wall;

and the second vertical wall is opposite to the first vertical wall in position and is connected with the second inclined wall.

6. The burner of claim 5, wherein an area of the first sloped wall and an area of the second sloped wall are each less than an area of the top sidewall.

7. The burner of claim 5, wherein the baffle further includes:

and the bottom side wall is arranged below the top side wall, one side edge is connected with the first vertical wall, and the other side edge is connected with the second vertical wall and is opposite to the top side wall.

8. The burner of any one of claims 1 to 7, wherein the number of secondary air channels is multiple and symmetrically distributed.

9. The burner of any of claims 1 to 7, wherein the partition is uniform in thickness.

10. A burner, comprising:

the jamb of any of claims 1 to 9;

and the fire cover is arranged above the furnace end.

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