阅读说明：本技术 燃烧器及厨房器具 (Burner and kitchen appliance ) 是由 王旺 张璧 金虎 费玉敏 于 2020-11-30 设计创作，主要内容包括：本发明公开一种燃烧器及厨房器具,该燃烧器包括喷嘴、增效管以及引射管,其中,增效管设置在喷嘴与引射管之间,喷嘴用于将燃气喷入增效管,增效管与引射管连通,增效管用于增加引射管内的空气流量。通过在引射管和喷嘴之间设置增效管,一方面提高了燃气在引射管内的引射量,另一方面增加引射管内的空气流入量,使得燃气的燃烧更加的完全,污染物排放量更低,从而实现了燃烧器的大功率燃烧,能够适用于更多的工作环境。(The invention discloses a combustor and a kitchen utensil, wherein the combustor comprises a nozzle, an efficiency-increasing pipe and an injection pipe, wherein the efficiency-increasing pipe is arranged between the nozzle and the injection pipe, the nozzle is used for injecting fuel gas into the efficiency-increasing pipe, the efficiency-increasing pipe is communicated with the injection pipe, and the efficiency-increasing pipe is used for increasing the air flow in the injection pipe. Through drawing to penetrate and set up the increase pipe between pipe and nozzle, improved the gas on the one hand and penetrated the intraductal volume of drawing, on the other hand increases and penetrates the intraductal air inflow of drawing for the burning of gas is more complete, and the pollutant emission is lower, thereby has realized the high-power burning of combustor, can be applicable to more operational environment.)

1. The utility model provides a combustor which characterized in that, includes nozzle, increase pipe and draws and penetrate the pipe, wherein, increase the pipe setting the nozzle with draw and penetrate between the pipe, the nozzle is used for spouting the gas increase pipe, increase pipe and drawing penetrate the pipe intercommunication, increase the pipe and be used for improving the combustion power of combustor.

2. The burner of claim 1, wherein a first air passage is formed at a location where the nozzle is engaged with the efficiency increasing pipe, and a second air passage is formed at a location where the efficiency increasing pipe is engaged with the injecting pipe.

3. The burner of claim 2,

the injection pipe is provided with a first air inlet end and a first air outlet end;

the synergy tube is provided with a second air inlet end and a second air outlet end, the inner diameter of the synergy tube is gradually reduced along the extending direction of the second air inlet end towards the second air outlet end, the second air outlet end extends to the first air inlet end, and the inner diameter of the first air inlet end is larger than the outer diameter of the second air outlet end to form the second air channel;

the nozzle is arranged on the nozzle seat, the spraying end of the nozzle extends towards the direction of the second air inlet end, and the inner diameter of the second air inlet end is larger than the outer diameter of the spraying end to form the first air channel.

4. The burner of claim 1, wherein the ejector tube comprises a first ejector section and a second ejector section which are connected in sequence, and along the direction from the first air inlet end to the first air outlet end, the inner diameter of the first ejector section is gradually reduced, and the inner diameter of the second ejector section is gradually increased.

5. The burner of claim 1, further comprising:

the first assembly part is fixedly connected with the injection pipe;

and the second assembly part is fixedly connected with the effect-increasing pipe, wherein the first assembly part is connected with the second assembly part so as to assemble the injection pipe and the effect-increasing pipe.

6. The burner of claim 5, wherein the first fitting is connected with a first positioning pin, the second fitting is formed with a first limiting hole, and the first positioning pin penetrates through the first limiting hole to fasten the ejector tube and the booster tube; and/or

The first assembly part is provided with a first positioning hole, the second assembly part is provided with a second positioning hole, and a fastener penetrates through the first positioning hole and the second positioning hole to fasten the injection pipe and the effect-enhancing pipe.

7. The burner of claim 1, further comprising:

the third assembly part is fixedly connected with the synergy tube;

the fourth assembly part is fixedly connected with the nozzle seat; wherein the third fitting is connected with the fourth fitting to assemble the multiplier tube with the nozzle carrier.

8. The burner of claim 7, wherein a second limiting hole is connected to the third fitting, and a second positioning pin is formed on the second fitting and penetrates through the second limiting hole to fasten the efficiency increasing pipe to the nozzle block; and/or

And a third positioning hole is formed in the third assembly part, a fourth positioning hole is formed in the fourth assembly part, and a fastener penetrates through the third positioning hole and the fourth positioning hole to fasten the synergy pipe and the nozzle seat.

9. The burner of claim 7, wherein there are a plurality of said injector tubes, said augmenter tubes, and said nozzles, said burner further comprising:

the first connecting piece is used for connecting the plurality of the injection pipes, and the plurality of the injection pipes are fixedly connected with a panel of the kitchen utensil through the first connecting piece;

and the second connecting piece is used for connecting a plurality of the synergy pipes.

10. The burner of claim 9, wherein the first connector has at least one attachment hole formed therein and the faceplate has at least one mounting hole formed therein, a fastener passing through the attachment hole and the mounting hole to fixedly attach the first connector to the faceplate; or

The panel is provided with at least one positioning pin, the panel is provided with at least one mounting hole corresponding to the positioning pin, and the positioning pin correspondingly penetrates through the mounting hole to fixedly connect the first connecting piece with the panel.

11. The burner of claim 9, wherein the ejector tube includes an inner ejector tube and an outer ejector tube, and the face plate has a first face plate hole and a second face plate hole;

the burner further comprises: interior fire lid and outer fire lid, wherein, interior ejector pipe passes first panel hole with interior fire lid is connected, outer ejector pipe passes second panel hole with outer fire lid is connected.

12. The burner of claim 11, wherein the nozzle comprises an inner nozzle and an outer nozzle, and the efficiency tube comprises an inner efficiency tube and an outer efficiency tube, wherein the inner nozzle, inner efficiency tube, inner injector tube, and inner burner cap are coaxially disposed, and wherein the outer nozzle, outer efficiency tube, outer injector tube, and outer burner cap are coaxially disposed;

the burner further comprises: the furnace end supporting table is sleeved at one end, close to the inner fire cover, of the inner injection pipe and is used for supporting the inner fire cover;

the first connecting piece is provided with a first furnace end limiting hole, the furnace end supporting platform is provided with a second furnace end limiting hole, and a fastener penetrates through the first furnace end limiting hole and the second furnace end limiting hole to fixedly connect the furnace end supporting platform on the first connecting piece.

13. A kitchen appliance, characterized in that it comprises:

a panel; and

the burner of any one of claims 9 to 12, said burner being fixedly attached to said panel.

Technical Field

The invention relates to the field of kitchen appliances, in particular to a burner and a kitchen appliance.

Background

The burner of the cooking bench on the standing type oven and other kitchen appliances adopts an upper air inlet structure, and the gas is sprayed out from the nozzle and drives the surrounding primary air to enter the injection pipe of the distributor. The primary air is supplemented from the upper surface of the cooking bench, but the resistance of the nozzle injection structure is large, the injection amount of the primary air is insufficient, the power of the furnace end is limited, and although a lower air inlet mode is adopted at present, the injection amount of the air is still insufficient.

Disclosure of Invention

The present invention is directed to a burner and a kitchen appliance, which are designed to solve at least one of the above problems.

To achieve the above object, the present invention provides a burner comprising: the burner comprises a nozzle, a synergistic pipe and an injection pipe, wherein the synergistic pipe is arranged between the nozzle and the injection pipe, the nozzle is used for injecting fuel gas into the synergistic pipe, the synergistic pipe is communicated with the injection pipe, and the synergistic pipe is used for improving the combustion power of the burner.

The invention proposes a kitchen appliance comprising:

panel and combustor, the combustor fixed connection is in on the panel.

According to one embodiment of the invention, a first air passage is formed at the matching position of the nozzle and the synergy tube, and a second air passage is formed at the matching position of the synergy tube and the injection tube.

According to one embodiment of the invention, the ejector tube has a first gas inlet end and a first gas outlet end;

the synergy tube is provided with a second air inlet end and a second air outlet end, the inner diameter of the synergy tube is gradually reduced along the direction in which the second air inlet end extends towards the second air outlet end, the second air outlet end extends to the first air inlet end, and the inner diameter of the first air inlet end is larger than the outer diameter of the second air outlet end to form the second air channel;

the nozzle is arranged on the nozzle seat, the spraying end of the nozzle extends towards the direction of the second air inlet end, and the inner diameter of the second air inlet end is larger than the outer diameter of the spraying end to form the first air channel.

According to an embodiment of the invention, the injection pipe comprises a first injection section and a second injection section which are sequentially connected, and along the direction from the first air inlet end to the first air outlet end, the inner diameter of the first injection section is gradually reduced, and the inner diameter of the second injection section is gradually increased.

According to an embodiment of the invention, the burner further comprises:

the first assembly part is fixedly connected with the injection pipe;

and the second assembly part is fixedly connected with the effect-increasing pipe, wherein the first assembly part is connected with the second assembly part so as to assemble the injection pipe and the effect-increasing pipe.

According to one embodiment of the invention, a first positioning pin is connected to the first assembly part, a first limiting hole is formed in the second assembly part, and the first positioning pin penetrates through the first limiting hole to fasten the ejector pipe and the effect-increasing pipe; and/or

The first assembly part is provided with a first positioning hole, the second assembly part is provided with a second positioning hole, and a fastener penetrates through the first positioning hole and the second positioning hole to fasten the injection pipe and the synergistic pipe.

According to an embodiment of the invention, the burner further comprises:

the third assembly part is fixedly connected with the synergy tube;

the fourth assembly part is fixedly connected with the nozzle seat; wherein the third fitting is connected with the fourth fitting to assemble the multiplier tube with the nozzle carrier.

According to an embodiment of the invention, a second limiting hole is connected to the third assembly part, and a second positioning pin is formed on the second assembly part and penetrates through the second limiting hole to fasten the synergy pipe and the nozzle seat; and/or

And a third positioning hole is formed in the third assembly part, a fourth positioning hole is formed in the fourth assembly part, and a fastener penetrates through the third positioning hole and the fourth positioning hole to fasten the synergy pipe and the nozzle base.

According to an embodiment of the present invention, there are a plurality of the ejector pipes, the efficiency increasing pipes, and the nozzles, and the combustor further includes: the first connecting piece is used for connecting the plurality of injection pipes, and the plurality of injection pipes are fixedly connected with a panel of the kitchen appliance through the first connecting piece; and the second connecting piece is used for connecting a plurality of the synergy pipes.

According to one embodiment of the invention, at least one connecting hole is formed on the first connecting piece, at least one mounting hole is formed on the panel, and a fastener penetrates through the connecting hole and the mounting hole to fixedly connect the first connecting piece and the panel; or

The panel is provided with at least one positioning pin, the panel is provided with at least one mounting hole corresponding to the positioning pin, and the positioning pin correspondingly penetrates through the mounting hole to fixedly connect the first connecting piece with the panel.

According to an embodiment of the present invention, the ejector tube includes an inner ejector tube and an outer ejector tube, the panel is formed with a first panel hole and a second panel hole, and the burner further includes: interior fire lid and outer fire lid, wherein, interior ejector pipe passes first panel hole with interior fire lid is connected, outer ejector pipe passes second panel hole with outer fire lid is connected.

According to one embodiment of the invention, the nozzle comprises an inner nozzle and an outer nozzle, the efficiency-increasing pipe comprises an inner efficiency-increasing pipe and an outer efficiency-increasing pipe, wherein the inner nozzle, the inner efficiency-increasing pipe, the inner injection pipe and the inner fire cover are coaxially arranged, and the outer nozzle, the outer efficiency-increasing pipe, the outer injection pipe and the outer fire cover are coaxially arranged;

the burner further comprises: the furnace end supporting table is sleeved at one end, close to the inner fire cover, of the inner injection pipe and is used for supporting the inner fire cover;

the first connecting piece is provided with a first furnace end limiting hole, the furnace end supporting platform is provided with a second furnace end limiting hole, and a fastener penetrates through the first furnace end limiting hole and the second furnace end limiting hole to fixedly connect the furnace end supporting platform on the first connecting piece.

Compared with the prior art, the invention has the following beneficial effects:

through drawing to penetrate and set up the increase pipe between pipe and nozzle, improved the gas on the one hand and penetrated the intraductal volume of drawing, on the other hand increases and penetrates the intraductal air inflow of drawing for the burning of gas is more complete, and the pollutant emission is lower, thereby has realized the high-power burning of combustor, can be applicable to more operational environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of a kitchen appliance in accordance with an embodiment of the present invention;

FIG. 2 is an assembled schematic view of a kitchen appliance in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a kitchen utensil in accordance with an embodiment of the present invention;

FIG. 4 is a top view of a dual eductor tube according to an embodiment of the present invention;

FIG. 5 is a bottom view of a dual eductor tube according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a dual eductor tube according to an embodiment of the present invention;

FIG. 7 is a perspective view of a nozzle carrier according to an embodiment of the present invention;

FIG. 8 is a perspective view of a nozzle carrier according to another embodiment of the present invention.

The reference numbers illustrate:

the burner 100 comprises a kitchen utensil 1000, a panel 200, a mounting hole 210, a first panel hole 220, a second panel hole 230, a double injection pipe 10, a pipe body 11, a first injection passage 111, a first air inlet 1111, a first air outlet 1112, a second injection passage 112, a second air inlet 1121, a second air outlet 1122, a third injection section 1123, a fourth injection section 1124, an inner injection pipe 113, an outer injection pipe 114, a first connecting member 12, a connecting hole 121, a first furnace head limiting hole 122, a thermocouple hole 123, an ignition pinhole 124, a first assembly member 13, a first positioning hole 130, an inner fire cover 20, an outer fire cover 30, a nozzle seat 40, an inner nozzle 41, an outer nozzle 42, a fourth assembly member 43, a fourth positioning hole 430, an efficiency-increasing pipe 50, an inner efficiency-increasing pipe 51, a second air inlet end 511, a second air outlet end 512, an outer efficiency-increasing pipe 52, a second connecting member 53, a second assembly member 54, a second positioning hole 540, a second positioning hole 54, a second positioning hole 540, A third assembly 55, a third positioning hole 550, a first air channel 60, a second air channel 70, a burner support table 80, a second burner limit hole 801, a thermocouple 90, and an ignition needle 91.

The implementation, functional features and advantages of the objects of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any combination, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the protection scope of the present invention.

Referring to fig. 1 to 3, a kitchen appliance 1000 according to an embodiment of the present invention includes a panel 200 and a burner 100, wherein the burner 100 is fixedly connected to the panel 200. Wherein the kitchen appliance 1000 may be a gas range, a standing oven, or the like. In the embodiment of the present application, the kitchen appliance 1000 is described as a standing oven, and it is to be understood that the kitchen appliance 1000 is not limited to the standing oven and may be other than the standing oven.

The combustor 100 of this application embodiment is including two pipes 10 that draw, interior fire lid 20 and outer fire lid 30, two pipes 10 that draw include body 11 and first connecting piece 12, body 11 is formed with first draw and draws passageway 111 and second and draw passageway 112, first connecting piece 12 is connected with body 11, first connecting piece 12 is used for with panel 200 fixed connection, to draw two pipes 10 to fix on panel 200, interior fire lid 20 communicates with each other with first draw and draws passageway 111, outer fire lid 30 draws passageway 112 to communicate with each other with the second.

The burner 100 and the kitchen utensil 1000 according to the embodiment of the present invention are fixedly connected to the panel 200 by the first connecting member 12, so that the double injection pipe 10 can be fixed on the panel 200, and is more suitable for the kitchen utensil 1000 with the panel 200, meanwhile, the pipe body 11 of the double injection pipe 10 is formed with a first injection passage 111 and a second injection passage 112, because the inner fire cover 20 is communicated with the first injection passage 111, the outer fire cover 30 is communicated with the second injection passage 112, the first injection passage 111 is independently used for supplying gas to the inner fire cover 20, the injection amount of the gas in the first injection passage 111 is more sufficient, the power of the inner fire cover 20 is increased, the second injection passage 112 is independently used for supplying gas to the outer fire cover, the injection amount of the gas in the second injection passage 112 is more sufficient, the power of the outer fire cover 30 is increased, the burner 100 can realize high-power combustion and can be suitable for more working environments.

Meanwhile, the output power of the outer fire cover 30 and the output power of the inner fire cover 20 can be separately controlled by controlling the air inflow of the first injection passage 111 and the second injection passage 112, so that the burner 100 and the kitchen utensil 1000 can be more suitable for different use environments, and meanwhile, better combustion efficiency can be achieved.

In the related art, the structure of the double injection pipe 10 is adopted to inject the fuel gas, and the injection amount of the fuel gas in the double injection pipe 10 is sufficient, so that the combustor 100 can realize larger output power. But when kitchen utensil 1000 is for standing the similar utensil of vertical oven, standing vertical oven still includes the box, and wherein combustor 100 installs in the top of box, and the pipe 10 will not be applicable to standing vertical oven from the fixed two injection of lower extreme, consequently uses first connecting piece 12 to penetrate pipe 10 with two and fixes on panel 200 for two penetrate pipe 10 can be applicable to standing vertical oven, adopts two to penetrate pipe 10 to penetrate simultaneously and penetrate and make the interior fire lid 20 and the outer fire lid 30 of standing vertical oven can obtain great output.

Specifically, the burner 100 includes a double injection pipe 10, an inner fire cover 20, and an outer fire cover 30. Wherein the outer fire cover 30 is provided on the outer circumference of the inner fire cover 20.

Referring to fig. 2 and 3, the dual injection pipe 10 includes a pipe body 11 and a first connecting member 12, wherein the first connecting member 12 is connected to the pipe body 11. The first connecting member 12 and the pipe body 11 may be two separate parts, and are connected together by fastening members, welding, bonding, and the like; the first connecting member 12 and the pipe body 11 may be an integral structure, which is not limited herein. Specifically, the first connecting member 12 may be a plate-shaped structure, and the dual injection pipe 10 is fixed on the panel 200 through the fixed connection between the first connecting member 12 and the panel 200, so that the dual injection pipe 10 is more stable.

Further, as shown in fig. 4, the pipe 11 is formed with a first injection passage 111 and a second injection passage 112, the air flow can flow through the first injection passage 111 and the second injection passage 112, the inner fire cover 20 is communicated with the first injection passage 111, the mixed gas of the gas and the air in the first injection passage 111 can reach the inner fire cover 20 for the combustion of the inner fire cover 20, the mixed gas of the gas and the air is injected to reach the inner fire cover through the first injection passage 111 alone, the primary air coefficient can be increased, and the inner fire cover 20 can realize larger combustion power.

Outer fire lid 30 communicates with each other with second injection passageway 112, and the gas mixture of gas and air in the second injection passageway 112 can reach outer fire lid 30, supplies outer fire lid 30 burning, draws the passageway 112 through the exclusive use second and draws the gas mixture of gas and air to outer fire lid 30, can increase primary air coefficient, makes outer fire lid 30 can realize great combustion power.

Meanwhile, the combustion power of the inner fire cover 20 can be controlled by controlling the fuel gas amount in the first injection passage 111, and the combustion power of the outer fire cover 30 can be controlled by controlling the fuel gas amount in the second injection passage 112.

Referring to fig. 1 and 4-6, in some embodiments, the first connecting member 12 has at least one connecting hole 121 formed therein, the panel 200 has at least one mounting hole 210 formed therein, and a fastener passes through the connecting hole 121 and the mounting hole 210 to fixedly connect the first connecting member 12 to the panel 200. Specifically, in the illustrated embodiment, four connection holes 121 are formed in the first connection member 12, four mounting holes 210 are correspondingly formed in the panel 200, the first connection member 12 is fixedly connected to the panel 200 by bolts, screws, and other fasteners passing through the connection holes 121 and the mounting holes 210, and the tube 11 is fixedly mounted on the panel 200 because the first connection member 12 is fixedly connected to the tube 11. Of course, the number of the connecting holes 121 and the mounting holes 210 may be one, two, three, five, six, etc., and is not limited herein.

In some embodiments, at least one positioning pin (not shown) is connected to the first connecting member 12, and a mounting hole 210 is formed on the panel 200 corresponding to the positioning pin, and the positioning pin passes through the mounting hole 210 to fixedly connect the first connecting member 12 and the panel 200. Specifically, one end of the positioning pin is threaded, the other end is fixedly connected to the first connecting member 12, the mounting hole 210 is a threaded hole, and the positioning pin and the threaded hole are fastened to fixedly connect the first connecting member 12 to the panel 200.

Referring to fig. 1, in some embodiments, the panel 200 is formed with a first panel hole 220 and a second panel hole 230, the tube 11 includes an inner injection tube 113 and an outer injection tube 114, the inner injection tube 113 is formed with a first injection passage 111, the inner injection tube 113 passes through the first panel hole 220 to be connected to the inner fire lid 20, the outer injection tube 114 is formed with a second injection passage 112, and the outer injection tube 114 passes through the second panel hole 230 to be connected to the outer fire lid 30.

So, interior injection pipe 113 can pass panel 200 and be connected with interior fire lid 20, outer injection pipe 114 can pass panel 200 and be connected with outer fire lid 30, interior injection pipe 113 can be better to interior fire lid 20 transmission gas, outer injection pipe 114 can be better to outer fire lid 30 transmission gas, first panel hole 220 can play certain fastening effect to interior injection pipe 113 simultaneously, second panel hole 230 can play certain fastening effect to outer injection pipe 114, make interior injection pipe 113 and draw more stable between injection pipe 114 and the panel 200 outward. While also allowing the burner 100 to be better secured to the panel 200.

With reference to fig. 4-6, the first connecting member 12 is sleeved on the inner ejection tube 113 and the outer ejection tube 114, two connecting holes 121 are formed around the inner ejection tube 113 of the first connecting member 12, two mounting holes 210 are formed around the first panel hole 220 of the panel 200, and the inner ejection tube 113 can be better fixed on the panel 200 by passing fasteners such as screws and bolts through the connecting holes 121 and the mounting holes 210; two connecting holes 121 are formed around the outer injection pipe 114, two mounting holes 210 are formed around a second panel hole 230 on the panel 200, and the outer injection pipe 114 can be better fixed on the panel 200 by passing fasteners such as screws, bolts and the like through the two connecting holes 121 and the mounting holes 210, so that the inner injection pipe 113 and the outer injection pipe 114 are not easy to loosen and are firmer.

Referring to fig. 6, in some embodiments, the inner injection pipe 113 has a first air inlet end and a first air outlet end, the first injection passage 111 is formed with a first air inlet 1111 and a first air outlet 1112, the first air inlet 1111 and the first air outlet 1112 are respectively located at the first air inlet end and the first air outlet end, the inner injection pipe 113 includes a first injection section 1113 and a second injection section 1114 connected in sequence along a direction in which the first air inlet end extends to the first air outlet end, an inner diameter of the first injection section 1113 gradually decreases, and an inner diameter of the second injection section 1114 gradually increases.

In this embodiment, when the gas circulated to first gas outlet 1112 along first air inlet 1111 in first drawing passageway 111, the gas can better mix with the air, because along the air current at the first direction of flow that draws in drawing passageway 111, the internal diameter of first section 1113 of drawing reduces gradually, the internal diameter of second section 1114 of drawing reduces gradually, the air current draws section 1113 by first when flowing in the second and draws section 1114, atmospheric pressure and velocity of flow all can improve when flowing, then draw section 1114 diffusion through the second. From this, when the air current (being the mist of gas and air) flows in first drawing passageway 111, will pressurize earlier and accelerate and carry out decompression diffusion again, can make the pressure loss between the air current that flows into first drawing passageway 111 and flow first drawing passageway 111 less, improved the injection ability of interior injection pipe 113 for it is more even to enter into mixing between the gas in interior fire lid 20 and the air, and the gas combustion is more abundant.

Referring to fig. 6, in some embodiments, similar to the structure of the internal injection pipe 113, the external injection pipe 114 has a first air inlet end and a first air outlet end, the second injection passage 112 is formed with a second air inlet 1121 and a second air outlet 1122, the second air inlet 1121 and the second air outlet 1122 are respectively located at the first air inlet end and the first air outlet end, and extend along the direction from the first air inlet end to the first air outlet end, the second injection passage 112 includes a third injection section 1123 and a fourth injection section 1124 connected in sequence, the inner diameter of the third injection section 1123 gradually decreases and the inner diameter of the fourth injection section 1124 gradually increases along the direction from the first air inlet end to the first air outlet end.

In this embodiment, the direction that extends to the first end of giving vent to anger along the first inlet end of outer ejector pipe 114 also is the flowing direction of air current (being the mist of gas and air) in second injection passageway 112, because along the flowing direction of air current, the internal diameter of third injection section 1123 reduces gradually, the internal diameter of fourth injection section 1124 increases gradually, atmospheric pressure and velocity of flow all can increase gradually when the air current flows in third injection section 1123, then diffuse when flowing in entering fourth injection section 1124, the atmospheric pressure and the velocity of flow of air current all can reduce gradually. Therefore, when the airflow flows in the second injection passage 112, pressurization is firstly accelerated and then decompression diffusion is carried out, so that the pressure loss between the airflows flowing into the second injection passage 112 and flowing out of the second injection passage 112 is small, the injection capacity of the outer injection pipe 114 is improved, the gas entering the outer fire cover 30 and the air are mixed more uniformly, and the gas is more sufficient during combustion.

Further, the combustor 100 further comprises a nozzle holder 40 and a synergy pipe 50, wherein the synergy pipe 50 is detachably arranged between the nozzle holder 40 and the double-injection pipe 10, the nozzle holder 40 is used for injecting fuel gas into the synergy pipe 50, the synergy pipe 50 is communicated with the double-injection pipe 10, and the synergy pipe 50 is used for increasing air flow in the double-injection pipe 10.

Referring to fig. 1 to 3, in some embodiments, the nozzle holder 40 includes an inner nozzle 41 and an outer nozzle 42, the efficiency-increasing pipe 50 includes an inner efficiency-increasing pipe 51 and an outer efficiency-increasing pipe 52, the inner efficiency-increasing pipe 51 is communicated with the first injection passage 111, the outer efficiency-increasing pipe 52 is communicated with the second injection passage 112, a first air passage 60 is formed at a position where the inner nozzle 41 (the outer nozzle 42) and the inner efficiency-increasing pipe 51 (the outer efficiency-increasing pipe 52) are matched, and a second air passage 70 is formed at a position where the inner efficiency-increasing pipe 51 (the outer efficiency-increasing pipe 52) and the inner injection pipe 113 (the outer injection pipe 114) are matched. It should be noted that, the first air passage 60 is used for supplying the outside air to flow into the synergy tube 50, and thus flows into the double injection tube 10 through the synergy tube 50, and the second air passage 70 is used for supplying the outside air to flow into the double injection tube 10, so that the air inflow in the double injection tube 10 is greatly increased, the combustion of the fuel gas is more complete, the pollutant discharge amount is reduced, and the combustion power of the burner is increased.

It should be noted that in the present embodiment, the inner diameters of the inner synergy tube 51 and the outer synergy tube 52 may be the same, but the present embodiment is not limited thereto, and the inner diameters of the two tubes may also be different.

Further, the burner 100 further includes a second connecting member 53 for connecting the inner efficiency-increasing pipe 51 and the outer efficiency-increasing pipe 52, and two ends of the second connecting member 53 are respectively connected to outer walls of the inner efficiency-increasing pipe 51 and the outer efficiency-increasing pipe 52, so that the inner efficiency-increasing pipe 51 and the outer efficiency-increasing pipe 52 are not easily loosened and are firmer.

It should be noted that the inner synergistic tube 51 and the outer synergistic tube 52 have the same structure, and the inner synergistic tube 51 is described in detail below by taking the inner synergistic tube 51 as an example, the inner synergistic tube 51 (the outer synergistic tube 52) has a second air inlet end 511 and a second air outlet end 512, the inner diameter of the inner synergistic tube 51 (the outer synergistic tube 52) is gradually reduced along the direction in which the second air inlet end 511 extends towards the second air outlet end 512, the second air outlet end 512 extends to the first air inlet end of the inner injection tube 113 (the outer injection tube 114), and the inner diameter of the first air inlet end of the inner injection tube 113 (the outer injection tube 114) is larger than the outer diameter of the second air outlet end 512, so as to form the second air passage 70.

Further, the injection end of the inner nozzle 41 (the outer nozzle 42) extends in the direction of the second air intake end 511, and the inner diameter of the second air intake end 511 is larger than the outer diameter of the injection end to form the first air passage 60.

Specifically, the inner nozzle 41 is installed at the second air inlet end 511 of the inner synergistic tube 51, the inner fire cover 20 is installed at the first air outlet 1112 of the inner injection tube 113, and the air is sprayed out from the inner nozzle 41, passes through the inner synergistic tube 51 and the first injection passage 111, and then enters the inner fire cover 20. The outer nozzle 42 is installed at the second air inlet end 511 of the outer synergistic tube 52, the outer fire cover 30 is installed at the second air outlet 1122 of the outer injection tube 114, and air is sprayed out of the outer nozzle 42, passes through the outer synergistic tube 52 and the second injection passage 112, and then enters the outer fire cover 30.

In this embodiment, the inner nozzle 41 provides gas to the inner fire cover 20 alone, the outer nozzle 42 provides gas to the outer fire cover 30 alone, the combustion power of the inner fire cover 20 can be controlled alone by controlling the gas output of the inner nozzle 41, the combustion power of the outer fire cover 30 can be controlled alone by controlling the gas output of the outer nozzle 42, the combustion power of the outer fire cover 30 and the inner fire cover 20 can be adjusted alone, so that the fire power adjusting effect of the burner 100 is better, and the burner can be applied to various working scenes.

Specifically, in this embodiment, the inner effect tube 51 (the outer effect tube 52) may be provided with a horn shape, so that along the direction in which the second air inlet end 511 of the inner effect tube 51 (the outer effect tube 52) extends toward the second air outlet end 512, that is, the flowing direction of the air flow (i.e., the mixture of the fuel gas and the air flowing in through the first air passage 60) in the inner effect tube 51 (the outer effect tube 52), since the inner diameter of the inner effect tube 51 (the outer effect tube 52) is gradually reduced along the flowing direction of the air flow, the air pressure and the flow rate are gradually increased when the air flow flows in the inner effect tube 51 (the outer effect tube 52), and then the air flow enters the inner injection tube 113 (the outer injection tube 114) along with the air flowing in the second air passage 70, and then sequentially passes through the first injection section 1113 (the third injection section 1123) of the inner injection tube 113 (the outer injection tube 114) to be pressurized and accelerated, The second draws section 1114 (fourth draws section 1124) decompression diffusion, so, the air current that jets from the injection end of interior nozzle 41 (outer nozzle 42) passes through interior increase pipe 51 (outer increase pipe 52) around, two times of drawing of first drawing section 1113 (third draws section 1123) draw, make the pressure loss of air current less, the ability of drawing of combustor has been improved, meanwhile, from first air duct 60, more air has flowed into to second air duct 70, make and mix between the gas that enters into interior fire lid 20 (outer fire lid 30) and the air more evenly, it is more abundant during the gas combustion.

The maximum power of the burner without the synergy tube 50 in the prior art is 5.0kW, and after the synergy tube 50 is used, the maximum power of the burner in the embodiment can be 5.5kW due to the increase of the primary air flow.

In this embodiment, the inner nozzle 41, the inner synergistic tube 51, the inner injection tube 113 and the inner fire cover 20 are coaxially arranged, the outer nozzle 42, the outer synergistic tube 52, the outer injection tube 114 and the outer fire cover 30 are coaxially arranged, the gas sprayed from the inner nozzle 41 can be directly sprayed to the inner fire cover 20, the gas sprayed from the outer nozzle 42 can be directly sprayed to the outer fire cover 30, so that the gas entering the inner fire cover 20 and the outer fire cover 30 has small loss, and the inner fire cover 20 and the outer fire cover 30 can realize larger combustion power.

Specifically, the inner nozzle 41, the inner synergistic tube 51, the inner injection tube 113 and the inner fire cover 20 are all on the same shaft, and the flow direction of the airflow sprayed by the inner nozzle 41 is not changed in the process of flowing to the inner fire cover 20, so that the loss of the airflow in the flowing process is low, and the air entering the inner fire cover 20 is more sufficient; the outer nozzle 42, the outer synergistic tube 52, the outer injection tube 114 and the outer fire cover 30 are all on the same axis, and the flowing direction of the airflow sprayed by the outer nozzle 42 is not changed in the process of flowing to the outer fire cover 30, so that the airflow loss in the flowing process is reduced, and the air entering the outer fire cover 30 is more sufficient.

In one embodiment, the inner nozzle 41, the inner synergy tube 51, the inner injection tube 113 and the inner fire cover 20 are in the same vertical direction, and the outer nozzle 42, the outer synergy tube 52, the outer injection tube 114 and the outer fire cover 30 are in the same vertical direction.

With continued reference to fig. 1-2 and 4, in some embodiments, the burner 100 further includes 2 first assembly members 13 fixedly connected to the inner injection pipe 113 and the outer injection pipe 114, respectively; and the 2 second assembling parts 54 are fixedly connected with the inner synergy tube 51 and the outer synergy tube 52 respectively, wherein the first assembling part 13 is connected with the second assembling parts 54 so as to assemble the double-injection tube 10 and the synergy tube 50. A first positioning hole 130 is formed on the first assembly part 13, a second positioning hole 540 is formed on the second assembly part 54, and a fastener passes through the first positioning hole 130 and the second positioning hole 540 to fasten the double-injection pipe 10 and the synergy pipe 50; and/or the first assembly part 13 is connected with a first positioning pin, the second assembly part 54 is formed with a first limiting hole, and the first positioning pin passes through the first limiting hole to fasten the double-injection pipe 10 and the synergistic pipe 50.

Specifically, the first assembly member 13, the inner injection pipe 113 and the outer injection pipe 114 may be two separate components and are fixedly connected together by welding, bonding, fastening, or the like, and the first assembly member 13, the inner injection pipe 113 and the outer injection pipe 114 may also be an integrated structure, that is, two different components on the same component. The fastener passes through the first positioning hole 130 on the first assembly part 13 and the second positioning holes 540 on the inner synergy pipe 51 and the outer synergy pipe 52 to fasten the double-injection pipe 10 and the synergy pipe 50. In the embodiment shown in fig. 8, the number of the first positioning holes 130 is 2, the number of the second positioning holes 540 is 2, and the position relationship between the dual injection pipe 10 and the synergistic pipe 50 is defined by the corresponding matching of the two first positioning holes 130 and the two second positioning holes 540.

Further, the double injection pipe 10 and the efficiency increasing pipe 50 can be fixedly connected by the fastening members such as bolts and screws penetrating through the first positioning hole 130 and the second positioning hole 540, and the efficiency increasing pipe 50 can be fixedly installed on the double injection pipe 10 because the first assembly member 13 is fixedly connected with the inner injection pipe 113 and the outer injection pipe 114. The number of the first positioning holes 130 and the second positioning holes 540 may be one, two, three, four, five, etc., which is not limited herein.

In the embodiment shown in fig. 1 and 4, the number of the first positioning holes 130 in each first assembly 13 is 2, wherein one first positioning hole 130 is formed on each of two sides of the inner injection pipe 113, one first positioning hole 130 is formed on each of two sides of the outer injection pipe 114, the number of the second positioning holes 540 in each second assembly 54 is 2, one second positioning hole 540 is formed on each of two sides of the inner synergistic pipe 51, and one second positioning hole 540 is formed on each of two sides of the outer synergistic pipe 52, so that the inner injection pipe 113 (the outer injection pipe 114) and the inner synergistic pipe 51 (the outer synergistic pipe 52) can be better matched, and the gas ejected from the inner synergistic pipe 51 (the outer injection pipe 52) can smoothly enter the first injection passage 111 and the second injection passage 112 of the inner injection pipe 113 (the outer injection pipe 114).

Referring to fig. 1 and 7-8, in some embodiments, the burner 100 further includes 2 third assembly members 55 fixedly connected to the inner and outer synergy pipes 51 and 52, respectively; and 2 fourth fitting parts 43 fixedly connected with the inner nozzle 41 and the outer nozzle 42 respectively, wherein the third fitting part 55 is connected with the fourth fitting parts 43 to assemble the nozzle holder 40 with the synergy tube 50. A third positioning hole 550 is formed on the third assembly part 55, a fourth positioning hole 430 is formed on the fourth assembly part 43, and a fastener passes through the third positioning hole 550 and the fourth positioning hole 430 to fasten the nozzle holder 40 and the synergy tube 50; and/or a second limiting hole is connected to the third assembly part 55, and a second positioning pin 431 is formed on the fourth assembly part 43 and penetrates through the second limiting hole to fasten the nozzle holder 40 and the synergy tube 50.

Further, the nozzle holder 40 and the synergy tube 50 can be fixedly connected by fastening members such as bolts and screws passing through the third positioning holes 550 and the fourth positioning holes 430 on the nozzle holder 40, and the nozzle holder 40 can be fixedly mounted on the synergy tube 50 because the third assembly member 55 and the synergy tube 50 are fixedly connected.

In the embodiment shown in fig. 1 and 7, the number of the fourth positioning holes 430 on each fourth assembly 43 may be 3, wherein 1 and 2 fourth positioning holes 430 are respectively formed on both sides of the inner nozzle 41, 1 and 2 fourth positioning holes 430 are respectively formed on both sides of the outer nozzle 42, and correspondingly, the number of the third positioning holes 550 on each third assembly 55 may be 3, wherein 1 and 2 third positioning holes 550 are respectively formed on both sides of the inner synergy tube 51, and 1 and 2 third positioning holes 550 are respectively formed on both sides of the outer synergy tube 52.

In this embodiment, the nozzle holder 40 is fixedly connected to the synergistic tube 50, so that the nozzle holder 40 can be fixedly installed on the dual injection tube 10 without separately fixing the nozzle holder 40, the burner 100 can be used for a kitchen appliance 1000 such as a standing oven having a panel 200, and the nozzle holder 40 is easy to assemble and disassemble.

Referring to fig. 1 and 4, in some embodiments, the burner 100 further includes a burner support platform 80, and the burner support platform 80 is disposed at an end of the inner injection pipe 113 close to the inner fire cover 20 to support the inner fire cover 20; a first furnace head limiting hole 122 is formed on the first connecting piece 12, a second furnace head limiting hole 801 is formed on the furnace head supporting platform 80, and a fastener penetrates through the first furnace head limiting hole 122 and the second furnace head limiting hole 801 to fixedly connect the furnace head supporting platform 80 to the first connecting piece 12.

In this embodiment, the furnace end supporting table 80 is sleeved on the inner injection pipe 113 and is close to one end of the inner fire cover 20, so that the inner fire cover 20 can be supported, and the matching between the inner fire cover 20 and the inner injection pipe 113 is more reasonable. Meanwhile, the burner supporting table 14 can be fixed on the first connecting piece 12 through the first burner limiting hole 122 on the first connecting piece 12 and the second burner limiting hole 801 on the burner supporting table 80, that is, the burner supporting table 80 can be fixed on the double injection pipe 10, and therefore, the burner supporting table 80 is more stably installed.

Specifically, fasteners such as bolts and screws penetrate through the first furnace end limiting hole 122 and the second furnace end limiting hole 801 to fixedly connect the furnace end supporting platform 80 with the first connecting piece 12, the furnace end supporting platform 180 is sleeved on the inner fire cover 20, one surface of the furnace end supporting platform 80 is close to the first connecting piece 12, the other surface of the furnace end supporting platform 80 is close to the inner fire cover 20, and the first connecting piece 12 plays a role in supporting and limiting the furnace end supporting platform 80.

With continued reference to fig. 1 and 4-5, in some embodiments, a thermocouple hole 123 is further formed on the first connecting member 12, and the thermocouple 90 is fixed on the first connecting member 12 through the thermocouple hole 123. The first connecting member 12 is further formed with an ignition needle hole 124, and the ignition needle 91 is fixed to the first connecting member 12 through the ignition needle hole 124. The thermocouple hole 123 and the ignition pinhole 124 can be selected according to actual requirements.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.