Burner and hob comprising same

Abstract

The application discloses a burner and a stove comprising the same. The burner comprises a base comprising an annular communication chamber for providing a gas flow to an outer ring fire area, the annular communication chamber comprising a top wall and a bottom wall, the top wall being located between the outer ring fire area and the bottom wall; a suction pipe assembly comprising an outer ring suction pipe in communication with the annular communication chamber, the outer ring suction pipe extending along a tangent direction of the annular communication chamber, the top wall being at least partially solid near one end of the outer ring suction pipe, and the height difference between the plane where the lower surface of the top wall is located and the plane where the top end of the gas outlet is located being within half of the height of the outer ring suction pipe in the upward direction of the gas; wherein the burner further comprises an outer ring gas flow path, the outer ring gas flow path forming a closed loop flow path along the annular communication chamber after entering the annular communication chamber through the outer ring suction pipe. By setting the specific structure of the burner, the efficiency of the ejector can be improved, the load capacity of the burner can be improved, and the performance of the burner can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a burner and a cooking appliance comprising the same. BACKGROUND

[0002] With the gradual improvement of the energy efficiency level of the cooking appliance, the traditional cooking appliance injector structure cannot meet the demand of the performance growth of the burner, and the upgrading of the injector structure is important. It is found in the numerical simulation and experiment that the back pressure of the tail of the injector pipe has a crucial influence on the injection effect of the injector. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the poor injection effect of the injector in the prior art, and to provide a burner and a cooking appliance comprising the same.

[0004] The present application solves the above technical problems by the following technical scheme:

[0005] A burner, characterized in that it comprises:

[0006] a base comprising an annular communication chamber, the annular communication chamber providing a gas flow for an outer ring fire area, the annular communication chamber comprising a top wall and a bottom wall arranged opposite along an axial direction, the top wall being located between the outer ring fire area and the bottom wall, the upward direction of the gas being a direction in which the gas rises from the base to the outer ring fire area along the axial direction;

[0007] an injector pipe assembly comprising an outer ring injector pipe in communication with the annular communication chamber, the gas outlet of the outer ring injector pipe being located in the annular communication chamber, the outer ring injector pipe extending along a tangent direction of the annular communication chamber, one end of the top wall close to the outer ring injector pipe being at least partially a solid structure, and the height difference between the plane on which the lower surface of the top wall is located and the plane on which the top end of the gas outlet is located along the upward direction of the gas being within half of the height of the outer ring injector pipe, so as to block the upward rising of the gas along the axial direction;

[0008] wherein the burner further comprises an outer ring gas flow path, the outer ring gas flow path forming a closed loop flow path along the annular communication chamber after entering the annular communication chamber through the outer ring injector pipe.

[0009] In the technical solution, the top wall of the annular communication chamber is at least partially solid near one end of the outer annular ejection pipe, and the height difference between the plane of the lower surface of the top wall and the plane of the top end of the gas outlet is within half the height of the outer annular ejection pipe, so that the gas entering the annular communication chamber from the outer annular ejection pipe is prevented from rising in the axial direction, thereby forming a closed loop flow path in the annular communication chamber. Meanwhile, the outer annular ejection pipe extends in the tangential direction of the annular communication chamber, that is, the gas in the outer annular ejection pipe flows into the annular communication chamber in the tangential direction, providing kinetic energy for the gas flow to form a closed loop flow path in the same direction in the annular communication chamber. Through the above arrangement, the gas flow in the annular communication chamber forms a one-way closed loop flow path, thereby generating a negative pressure area at the tail of the outer annular ejection pipe, which offsets the influence of the back pressure at the tail of the conventional ejector on the ejection effect of the ejector. Therefore, the ejection efficiency of the ejector can be improved, the load capacity of the combustor can be improved, and technical support is provided for performance improvement of the combustor.

[0010] Preferably, the base further comprises a gas mixing chamber in communication with the annular communication chamber, the gas mixing chamber comprising a plurality of outer ring gas mixing chambers extending towards the outer ring flame discharge area along the axial direction and arranged along the circumferential direction of the annular communication chamber, and the gas inlet of the outer ring gas mixing chamber being arranged on the top wall.

[0011] When the number of outer ring gas mixing chambers is multiple, a plurality of sub-outer ring gas mixing chambers are arranged along the circumferential direction of the annular communication chamber.

[0012] The outer ring gas flow path passes through the annular communication chamber and the outer ring gas mixing chamber in sequence to reach the outer ring flame discharge area.

[0013] In the technical solution, by arranging a plurality of sub-outer ring gas mixing chambers arranged along the circumferential direction of the annular communication chamber, a plurality of rising paths from the base to the outer ring flame discharge area are formed, thereby making the gas distribution in the outer ring flame discharge area more uniform.

[0014] Preferably, a plurality of outer ring gas mixing chambers are equidistantly arranged along the circumferential direction of the annular communication chamber.

[0015] In the technical solution, by equidistantly arranging a plurality of outer ring gas mixing chambers along the circumferential direction of the annular communication chamber, the gas distribution in the outer ring flame discharge area can be further made more uniform.

[0016] Preferably, at least one outer ring gas mixing chamber is provided with a pressure equalizing structure for uniformly equalizing the pressure in the outer ring gas mixing chamber.

[0017] In the technical solution, the pressure equalizing structure is arranged in the outer ring gas mixing chamber, which can uniformly distribute the pressure in the outer ring gas mixing chamber, ensure the relatively uniform pressure in the annular communication chamber at the bottom of the outer ring gas mixing chamber, and ensure the rotational speed of the gas flow in the annular communication chamber, so as to ensure the swirling and suction effect.

[0018] Preferably, the pressure equalizing structure comprises a flow equalizing and pressure stabilizing plate, which is a plate structure and is arranged in the horizontal direction. A plurality of through holes are arranged on the flow equalizing and pressure stabilizing plate in the circumferential direction of the annular communication chamber and penetrate the flow equalizing and pressure stabilizing plate in the axial direction.

[0019] In the technical solution, the specific arrangement of the pressure equalizing structure is provided, and the specific structure of the flow equalizing and pressure stabilizing plate can reduce the outlet gas speed and slow down the gas flow, so as to achieve the beneficial effect of uniformly distributing the pressure in the outer ring gas mixing chamber.

[0020] Preferably, the pressure equalizing structure comprises a pressure gap assembly, which comprises a plurality of pressure gap plates arranged in the upward direction of the gas flow. At least one gap is arranged on each pressure gap plate in the axial direction and is staggered on adjacent pressure gap plates in the upward direction of the gas flow.

[0021] In the technical solution, the specific arrangement of the pressure equalizing structure is provided, and the specific structure of the pressure gap assembly can reduce the outlet gas speed and slow down the gas flow, so as to achieve the beneficial effect of uniformly distributing the pressure in the outer ring gas mixing chamber.

[0022] Preferably, the pressure gap plate is arranged in the horizontal direction, and the gap extends in the circumferential direction of the annular communication chamber.

[0023] When a plurality of gaps are arranged on the pressure gap plate, the plurality of gaps are arranged in the radial direction of the annular communication chamber.

[0024] In the technical solution, the pressure gap plate is arranged in the horizontal direction, which can better block the upward gas flow. The gap extends in the circumferential direction of the annular communication chamber, which can better slow down the gas flow under the premise that the gaps on adjacent pressure gap plates are staggered. Further, the plurality of gaps arranged on the pressure gap plate in the radial direction of the annular communication chamber can further slow down the gas flow.

[0025] Preferably, the gap on the pressure gap plate closest to the annular communication chamber is arranged in the middle area of the pressure gap plate in the radial direction of the annular communication chamber; and / or,

[0026] The slit on one of the two adjacent pressing slit plates is arranged at a middle position of the pressing slit plate along the radial direction of the annular communication chamber; and the slit on the other pressing slit plate is arranged at an edge position of the pressing slit plate along the radial direction of the annular communication chamber.

[0027] In the technical solution, the slit on the pressing slit plate closest to the annular communication chamber is arranged at a middle region of the pressing slit plate along the radial direction of the annular communication chamber, so that the gas flow entering from the annular communication chamber is concentrated in the slit at the middle region, thereby achieving the beneficial effect of better slowing down the speed of the gas flow at the beginning. The slit on one of the two adjacent pressing slit plates is arranged at a middle position of the pressing slit plate along the radial direction of the annular communication chamber, and the slit on the other pressing slit plate is arranged at an edge position of the pressing slit plate along the radial direction of the annular communication chamber, so that the distance between the slits on the two adjacent pressing slit plates is far, thereby making the gas flow travel farther and better slowing down the speed of the gas flow.

[0028] Preferably, the base is integrally formed.

[0029] In the technical solution, the base is integrally formed, so that the structure of the base is strengthened and the manufacturing cost of the burner is greatly reduced.

[0030] A stove, characterized in comprising the burner as described above.

[0031] The positive progress effect of the present application is that:

[0032] The present application sets the specific structure of the burner, so that the flow of the gas flow in the annular communication chamber forms a one-way closed loop flow path, thereby generating a negative pressure area at the tail of the outer ring ejector pipe, which offsets the influence of the back pressure at the tail of the traditional ejector on the reduction of the ejecting effect of the ejector. Therefore, the ejecting efficiency of the ejector can be improved, the load capacity of the burner is improved, and technical support is provided for the performance improvement of the burner. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 FIG. 1 is a partial perspective structural schematic view of the burner of Embodiment 1 of the present application.

[0034] Figure 2 FIG. 2 is a partial side view structural schematic view of the burner of Embodiment 1 of the present application.

[0035] Figure 3 FIG. 3 is a cross-sectional structural schematic view of the burner of Embodiment 1 of the present application along the direction of A-A. Figure 2 FIG. 4 is a cross-sectional structural schematic view of the burner of Embodiment 1 of the present application along the direction of B-B.

[0036] Figure 4A partial plan view of the burner of Example 1 of the present application.

[0037] Figure 5 A partial plan view of the burner of Example 1 of the present application. Figure 4 A cross-sectional view of the burner of Example 1 of the present application along the direction of B-B.

[0038] Figure 6 A partial plan view of the burner of Example 1 of the present application. Figure 5 A partial plan view of the burner of Example 1 of the present application.

[0039] Figure 7 A perspective view of the base of the burner of Example 1 of the present application.

[0040] Figure 8 Another perspective view of the base of the burner of Example 1 of the present application.

[0041] Figure 9 A front view of the base of the burner of Example 1 of the present application.

[0042] Figure 10 A partial plan view of the burner of Example 1 of the present application. Figure 9 A cross-sectional view of the burner of Example 1 of the present application along the direction of D-D.

[0043] Figure 11 A partial plan view of the burner of Example 1 of the present application. Figure 9 A cross-sectional view of the burner of Example 1 of the present application along the direction of E-E.

[0044] Figure 12 A perspective cross-sectional view of the base of the burner of Example 1 of the present application.

[0045] Figure 13 Another perspective cross-sectional view of the base of the burner of Example 1 of the present application.

[0046] Figure 14 Another perspective view of the burner of Example 1 of the present application.

[0047] Figure 15 A perspective view of the outer ring flame cap of the burner of Example 1 of the present application.

[0048] Figure 16 A perspective view of the burner of Example 2 of the present application.

[0049] Explanation of Reference Numerals

[0050] Burner 100

[0051] Base 1

[0052] Annular communication chamber 10

[0053] Top wall 11

[0054] bottom wall 12

[0055] inner ring side wall 13

[0056] outer ring side wall 14

[0057] mixing chamber 20

[0058] outer ring mixing chamber 30

[0059] inner ring mixing chamber 40

[0060] seal gap assembly 50

[0061] seal gap plate 51

[0062] gap 511

[0063] flow stabilizing plate 60

[0064] through hole 61

[0065] mounting portion 70

[0066] sealing portion 80

[0067] ejector tube assembly 2

[0068] outer ring ejector tube 201

[0069] outer ring ejector tube gas outlet 2011

[0070] inner ring ejector tube 202

[0071] sealing cover 203

[0072] outer ring flame area 301

[0073] inner ring flame area 302

[0074] outer ring flame cover 4

[0075] outer ring flame cover sealing plate 401

[0076] outer ring flame cover gas inlet hole 402

[0077] inner ring flame cover 5

[0078] liquid holding tray 6

[0079] fixing member 7

[0080] thermocouple 8

[0081] ignition needle 9

[0082] outer ring gas flow path P

[0083] inner ring gas flow path Q

[0084] axial direction H

[0085] The upward direction of the gas (S)

[0086] Radial R

[0087] Elevation difference h Detailed Implementation

[0088] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0089] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," and "radial," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0091] Example 1

[0092] Please combine Figures 1-15 It is understood that this embodiment provides a burner 100, which includes a base 1 and an ejector assembly 2.

[0093] The base 1 includes an annular connecting chamber 10, which provides gas flow to the outer annular fire outlet region 301. The annular connecting chamber 10 includes a top wall 11 and a bottom wall 12 arranged opposite each other along the axial direction H. The top wall 11 is located between the outer annular fire outlet region 301 and the bottom wall 12. The rising direction S of the gas is the direction in which the gas rises from the base 1 to the outer annular fire outlet region 301 along the axial direction H.

[0094] The ejector assembly 2 comprises an outer ring ejector pipe 201 in communication with the annular communication chamber 10, and the gas outlet 2011 of the outer ring ejector pipe is located in the annular communication chamber 10. The outer ring ejector pipe 201 extends along the tangent direction of the annular communication chamber 10. The top wall 11 near one end of the outer ring ejector pipe 201 is at least partially solid structure, and the height difference h between the plane where the lower surface of the top wall 11 along the upward direction S of the gas is located and the plane where the top end of the gas outlet is located is within half of the height of the outer ring ejector pipe 201, so as to block the upward movement of the gas along the axial direction H.

[0095] The burner 100 further comprises an outer ring gas flow path P. After entering the annular communication chamber 10 through the outer ring ejector pipe 201, the outer ring gas flow path P forms a closed loop flow path along the annular communication chamber 10.

[0096] In this way, by arranging the annular communication chamber 10 in communication with the tail of the outer ring ejector pipe 201, and by arranging the top wall 11 near one end of the outer ring ejector pipe 201 to be at least partially solid structure, and by arranging the height difference h between the plane where the lower surface of the top wall 11 along the upward direction S of the gas is located and the plane where the top end of the gas outlet is located to be within half of the height of the outer ring ejector pipe 201, the upward movement of the gas along the axial direction H entering the annular communication chamber 10 from the outer ring ejector pipe 201 can be blocked, so that the gas forms a closed loop flow path in the annular communication chamber 10. At the same time, by arranging the outer ring ejector pipe 201 to extend along the tangent direction of the annular communication chamber 10, that is, by arranging the gas in the outer ring ejector pipe 201 to flow into the annular communication chamber 10 from the tangent direction, the kinetic energy is provided for the gas flow to form a closed loop flow path in the same direction along the annular communication chamber 10. Through the above arrangement, the flow of the gas in the annular communication chamber 10 can form a one-way closed loop flow path, so that a negative pressure area is generated at the tail of the outer ring ejector pipe 201, which offsets the influence of the back pressure at the tail of the traditional ejector on the reduction of the ejecting effect of the ejector. Therefore, the ejecting efficiency of the ejector can be improved, the load capacity of the burner 100 can be improved, and technical support is provided for the performance improvement of the burner 100.

[0097] It should be noted that the gas outlet 2011 of the outer ring ejector pipe is located in the annular communication chamber 10, that is, the tail of the outer ring ejector pipe 201 is inserted into the annular communication chamber 10, so that the gas outlet 2011 of the outer ring ejector pipe located at the tail of the outer ring ejector pipe 201 can be located in the annular communication chamber 10; therefore, the lower surface of the top wall 11 of the annular communication chamber 10 in the upward direction S of the gas must be higher than the top end of the gas outlet 2011. That is, the height difference h between the plane where the lower surface of the top wall 11 of the annular communication chamber 10 in the upward direction S of the gas is located and the plane where the top end of the gas outlet is located can be between greater than or equal to the top end of the outer wall of the tail of the outer ring ejector pipe 201 and less than or equal to half the height of the outer ring ejector pipe 201. The height of the outer ring ejector pipe 201 refers to the maximum dimension of the outer ring ejector pipe 201 in the axial direction H.

[0098] Wherein, the height difference h between the plane where the lower surface of the top wall 11 of the annular communication chamber 10 in the upward direction S of the gas is located and the plane where the top end of the gas outlet is located is within half the height of the outer ring ejector pipe 201, because if the height difference h is too high, it will increase the gas outlet resistance of the burner head; if the height difference h is too low, the gas outlet velocity at the top will be larger, and the gas upward velocity will be faster, which will adversely affect the effect of the bottom rotating entrainment. Preferably, the height difference h between the plane where the lower surface of the top wall 11 of the annular communication chamber 10 in the upward direction S of the gas is located and the plane where the top end of the gas outlet is located is within half the height of the outer ring ejector pipe 201, and the value range is within 50mm, more preferably, the value range is 30-50mm, specifically, such as 30mm, 40mm, 50mm.

[0099] The annular communication chamber 10 further comprises an inner ring side wall 13 and an outer ring side wall 14 oppositely arranged along the radial direction R of the annular communication chamber 10, the top wall 11 and the bottom wall 12 are connected between the inner ring side wall 13 and the outer ring side wall 14, and the inner ring side wall 13, the outer ring side wall 14, the top wall 11 and the bottom wall 12 surround to form the annular communication chamber 10.

[0100] The base 1 further comprises a gas mixing chamber 20 communicating with the annular communication chamber 10, the gas mixing chamber 20 comprises a plurality of outer ring gas mixing chambers 30, the outer ring gas mixing chambers 30 extend towards the outer ring gas outlet area 301 along the axial direction H and are arranged along the circumferential direction of the annular communication chamber 10, and the gas inlet of the outer ring gas mixing chamber 30 is arranged on the top wall 11; when the number of outer ring gas mixing chambers 30 is multiple, the multiple outer ring gas mixing chambers 30 are arranged as sub-outer ring gas mixing chambers 30 along the circumferential direction of the annular communication chamber 10; the outer ring gas flow path P passes through the annular communication chamber 10 and the outer ring gas mixing chamber 30 in sequence to reach the outer ring gas outlet area 301. In this way, by arranging multiple outer ring gas mixing chambers 30 as sub-outer ring gas mixing chambers 30 along the circumferential direction of the annular communication chamber 10, multiple upward paths from the base 1 to the outer ring gas outlet area 301 can be formed, so that the gas is more uniformly distributed in the outer ring gas outlet area 301.

[0101] Preferably, the plurality of outer ring gas mixing chambers 30 are equidistantly arranged along the circumference of the annular communication chamber 10. In this way, by equidistantly arranging the plurality of outer ring gas mixing chambers 30 along the circumference of the annular communication chamber 10, the distribution of the gas in the outer ring fire area 301 can be further uniform.

[0102] In the present embodiment, the number of outer ring gas mixing chambers 30 is two, and the two outer ring gas mixing chambers 30 are equidistantly arranged along the circumference of the annular communication chamber 10. However, the number of outer ring gas mixing chambers 30 can also be one, three, four or other numbers in other embodiments.

[0103] An outer ring fire cover 4 is arranged above the outer ring gas mixing chamber 30, and the outer ring fire cover 4 is provided with an outer ring fire cover sealing plate 401 close to the outer ring gas mixing chamber 30. The outer ring fire cover sealing plate 401 is provided with an outer ring fire cover air inlet hole 402.

[0104] The injection pipe assembly 2 further comprises an inner ring injection pipe 202 arranged apart from the outer ring injection pipe 201, and the gas mixing chamber 20 further comprises an inner ring gas mixing chamber 40, and the inner ring injection pipe 202 communicates with the inner ring gas mixing chamber 40. The inner ring gas mixing chamber 40 provides a gas flow for the inner ring fire area 302. The burner 1 further comprises an inner ring gas flow path Q, which sequentially passes through the inner ring gas mixing chamber 40 to reach the inner ring fire area 302.

[0105] An inner ring fire cover 5 is arranged above the inner ring gas mixing chamber 40.

[0106] The injection pipe assembly 2 further comprises a sealing cover 203 connected to the outer ring injection pipe 201 and the inner ring injection pipe 202, and the sealing cover 203 is located at one end of the outer ring injection pipe 201 and the inner ring injection pipe 202 close to the base 1, i.e., the tail end of the outer ring injection pipe 201 and the inner ring injection pipe 202. The base 1 is provided with a sealing portion 80, and the sealing cover 203 is arranged on the sealing portion 80.

[0107] In the present embodiment, a pressure equalizing structure is arranged in the two outer ring gas mixing chambers 30 to equalize the pressure in the outer ring gas mixing chamber 30. However, in other embodiments, one of the two outer ring gas mixing chambers 30 can be provided with a pressure structure; that is, at least one outer ring gas mixing chamber 30 is provided with a pressure equalizing structure. In this way, by arranging the pressure equalizing structure in the outer ring gas mixing chamber 30, the pressure in the outer ring gas mixing chamber 30 can be equalized, the pressure in the annular communication chamber 10 located at the bottom of the outer ring gas mixing chamber 30 can be relatively uniform, the rotational speed of the gas flow in the annular communication chamber 10 can be ensured, and thus the swirling suction effect can be ensured.

[0108] The pressure equalization structure comprises a pressure gap assembly 50, which comprises a plurality of pressure gap plates 51 stacked in the ascending direction S of the gas from bottom to top, and at least one gap 511 is formed on each pressure gap plate 51 in the axial direction H, and the gaps 511 on the adjacent two pressure gap plates 51 in the ascending direction S of the gas are staggered. In this way, by setting the specific structure of the pressure gap assembly 50, the gas outlet speed can be reduced, and the speed of the gas flow can be slowed down, thereby achieving the beneficial effect of uniformly equalizing the pressure in the outer ring mixing chamber 30. Specifically, in the present embodiment, the number of pressure gap plates 51 is five. However, it is not limited to this, and in other embodiments, the number of pressure gap plates 51 can also be two, three, four, six, or other numbers.

[0109] Preferably, the pressure gap plate 51 is arranged in the horizontal direction, and the gap 511 extends in the circumferential direction of the annular communication chamber 10; when a plurality of gaps 511 are formed on the pressure gap plate 51, the plurality of gaps 511 are arranged in the radial direction R of the annular communication chamber 10. In this way, by arranging the pressure gap plate 51 in the horizontal direction, the pressure gap plate 51 can better block the ascending gas flow. By arranging the gap 511 to extend in the circumferential direction of the annular communication chamber 10, the speed of the gas flow can be better slowed down under the premise that the gaps 511 on the adjacent two pressure gap plates 51 are staggered. Further, by arranging a plurality of gaps 511 on the pressure gap plate 51 in the radial direction R of the annular communication chamber 10, the speed of the gas flow can be further slowed down.

[0110] Preferably, the gap 511 on the pressure gap plate 51 closest to the annular communication chamber 10 is arranged on the pressure gap plate 51 in the middle region in the radial direction R of the annular communication chamber 10, so that when the gas flow enters the annular communication chamber 10, it enters the gap 511 in the middle region, thereby achieving the beneficial effect of better slowing down the speed of the gas flow at the beginning.

[0111] The gap 511 on one of the adjacent two pressure gap plates 51 is arranged on the pressure gap plate 51 in the middle position in the radial direction R of the annular communication chamber 10; the gap 511 on the other pressure gap plate 51 is arranged on the pressure gap plate 51 in the edge position in the radial direction R of the annular communication chamber 10, so that the distance between the gaps 511 on the adjacent two pressure gap plates 51 is far, thereby making the travel of the gas flow farther, thereby better slowing down the speed of the gas flow.

[0112] In the present embodiment, the base 1 is integrally formed, which can strengthen the structure of the base 1 itself while greatly reducing the manufacturing cost of the burner 100.

[0113] The base 1 is provided with a mounting portion 70 located on the outer wall of the outer ring mixing chamber 30 and on the side of the outer wall of the outer ring mixing chamber 30 facing the inner ring mixing chamber 40. The fixing member 7 for fixing the liquid container 6 on the base 1 is fixed on the mounting portion 70, thereby realizing the hiding effect of the fixing member 7 and improving the overall aesthetic appearance. Specifically, the fixing member 7 is a screw, but is not limited thereto, and can also be other forms of fixing member 7.

[0114] The burner 100 further comprises a thermocouple 8 and an ignition needle 9, both of which are arranged close to the outer wall of the inner ring mixing chamber 40 and located in the annular region formed between the outer wall of the inner ring mixing chamber 40 and the outer wall of the outer ring mixing chamber 30.

[0115] The embodiment also provides a stove comprising the burner 100 as described above.

[0116] The embodiment can form a one-way closed loop flow path for the gas flow in the annular communication chamber 10 by setting the specific structure of the burner 100, thereby generating a negative pressure area at the tail of the outer ring ejector pipe 201 to offset the influence of the back pressure at the tail of the traditional ejector on the reduction of the ejecting effect of the ejector. Therefore, the ejecting efficiency of the ejector can be improved, the load capacity of the burner 100 is improved, and technical support is provided for the performance improvement of the burner 100.

[0117] Embodiment 2

[0118] As shown in Figure 16 The overall structure of the burner 100 of the embodiment is basically the same as that of the structure in Embodiment 1, and the difference is that the pressure equalizing structure comprises a flow stabilizing and pressure stabilizing plate 60, which is a plate-shaped structure and is arranged in the horizontal direction. A plurality of through holes 61 are arranged on the flow stabilizing and pressure stabilizing plate 60 in the circumferential direction of the annular communication chamber 10, and the through holes 61 penetrate the flow stabilizing and pressure stabilizing plate 60 in the axial direction H.

[0119] In this way, by setting the specific structure of the flow stabilizing and pressure stabilizing plate, the gas outlet speed can be reduced, and the speed of the gas flow can be slowed down, thereby achieving the beneficial effect of uniformly equalizing the pressure in the outer ring mixing chamber 30.

[0120] It should be noted that in other embodiments, the pressure equalizing structure can comprise a flow stabilizing and pressure stabilizing plate 60 and a pressure gap assembly, and the flow stabilizing and pressure stabilizing plate 60 is arranged on the side of the pressure gap assembly close to the outer ring fire area 301.

[0121] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrated by way of example, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. A burner, characterized by It comprises: The base comprises an annular communication chamber, which provides a gas flow for the outer ring fire area, and the annular communication chamber comprises an axially opposite top wall and a bottom wall, and the top wall is located between the outer ring fire area and the bottom wall, and the upward direction of the gas is the direction of the gas rising from the base to the outer ring fire area, and the base further comprises a gas mixing chamber communicated with the annular communication chamber, and the gas mixing chamber comprises a plurality of outer ring gas mixing chambers, at least one of which is provided with a pressure equalizing structure for uniformly distributing the pressure in the outer ring gas mixing chamber; The ejector pipe assembly comprises an outer ring ejector pipe communicated with the annular communication chamber, and the gas outlet of the outer ring ejector pipe is located in the annular communication chamber, and the outer ring ejector pipe extends along the tangential direction of the annular communication chamber, and the top wall near one end of the outer ring ejector pipe is at least partially solid structure, and the height difference between the plane where the lower surface of the top wall is located and the plane where the top end of the gas outlet is located along the upward direction of the gas is within half of the height of the outer ring ejector pipe, so as to block the upward rising of the gas along the axial direction; Wherein, the burner further comprises an outer ring gas flow path, which forms a closed loop flow path along the annular communication chamber after entering the annular communication chamber through the outer ring ejector pipe.

2. The burner of claim 1, wherein The outer ring gas mixing chamber extends along the axial direction towards the outer ring fire area, and is arranged along the circumferential direction of the annular communication chamber, and the gas inlet of the outer ring gas mixing chamber is opened on the top wall; When the number of outer ring gas mixing chambers is multiple, a plurality of outer ring gas mixing chambers are arranged along the circumferential direction of the annular communication chamber. The outer ring gas flow path passes through the annular communication chamber and the outer ring gas mixing chamber in sequence to reach the outer ring fire area.

3. The burner of claim 2, wherein A plurality of outer ring gas mixing chambers are equally spaced along the circumferential direction of the annular communication chamber.

4. The burner of claim 2, wherein The pressure equalizing structure comprises a flow stabilizing and pressure stabilizing plate, which is a plate structure and is arranged along the horizontal direction, and a plurality of through holes are opened on the flow stabilizing and pressure stabilizing plate and are arranged along the circumferential direction of the annular communication chamber, and the through holes penetrate the flow stabilizing and pressure stabilizing plate along the axial direction.

5. The burner of claim 2, wherein The pressure equalizing structure comprises a pressure gap assembly, which comprises a plurality of pressure gap plates stacked in sequence from bottom to top along the upward direction of the gas, and at least one gap is opened on each pressure gap plate along the axial direction, and the gaps on two adjacent pressure gap plates are arranged staggered along the upward direction of the gas.

6. The burner of claim 5, wherein The pressure gap plate is arranged along the horizontal direction, and the gap extends along the circumferential direction of the annular communication chamber; When a plurality of gaps are opened on the pressure gap plate, a plurality of gaps are arranged along the radial direction of the annular communication chamber.

7. The burner of claim 5, wherein The gap on the pressure gap plate closest to the annular communication chamber is arranged in the middle area of the pressure gap plate along the radial direction of the annular communication chamber; and / or, The slots on one of the two adjacent compression slot plates are arranged at a middle position in the radial direction of the annular communication chamber, and the slots on the other compression slot plate are arranged at an edge position in the radial direction of the annular communication chamber.

8. Burner according to any of claims 1-7, characterized in that The base is integrally formed.

9. A hob, characterized in that A burner comprising a burner according to any one of claims 1-8.

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