WO2019223402A1 - Upper air inlet cooker burner - Google Patents

Upper air inlet cooker burner Download PDF

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Publication number
WO2019223402A1
WO2019223402A1 PCT/CN2019/077984 CN2019077984W WO2019223402A1 WO 2019223402 A1 WO2019223402 A1 WO 2019223402A1 CN 2019077984 W CN2019077984 W CN 2019077984W WO 2019223402 A1 WO2019223402 A1 WO 2019223402A1
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WIPO (PCT)
Prior art keywords
wall
cavity
chamber
inner ring
fire
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PCT/CN2019/077984
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French (fr)
Chinese (zh)
Inventor
卢华师
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宁波方太厨具有限公司
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Priority to CN201810503164.4 priority Critical
Priority to CN201810503164.4A priority patent/CN110529850A/en
Application filed by 宁波方太厨具有限公司 filed Critical 宁波方太厨具有限公司
Publication of WO2019223402A1 publication Critical patent/WO2019223402A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/26Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • F23D14/58Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/62Mixing devices; Mixing tubes
    • F23D14/64Mixing devices; Mixing tubes with injectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D23/00Assemblies of two or more burners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L1/00Passages or apertures for delivering primary air for combustion 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/06Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air into the fire bed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2900/00Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14Special features of gas burners
    • F23D2900/14062Special features of gas burners for cooking ranges having multiple flame rings

Abstract

Disclosed is a cooker burner, comprising a base (1), a first ejection channel (3), a primary air channel (4), a burner cap (5) and a transmission channel (6). The base (1) is provided with a cavity (11) having an upward opening and used for accommodating at least one first ejector (12). The first ejection channel (3) comprises a central chamber (311) located in the center, and a peripheral chamber (312) surrounding the central chamber (311). An inlet of the central chamber (311) is opposite the first ejector (12). The peripheral chamber (312) is used for making primary air around the periphery of the central chamber (311) uniform. An interlayer structure design of the first ejection channel (3) can better make gas in the central chamber (311) more directly mix with the primary air in the peripheral chamber (312), thereby improving the uniformity and intake rate of the primary air uniformly distributed at the periphery of the central chamber (311) and also avoiding a yellow flame and weak flame.

Description

一种上进风灶具燃烧器Burner of up-wind cooker 技术领域Technical field
本发明涉及一种用于燃气灶具的燃烧器,尤其涉及一种带双通道的上进风式的灶具燃烧器。The invention relates to a burner for a gas cooker, in particular to an upward-inlet type cooker burner with a double channel.
背景技术Background technique
目前,市面上的上进风燃气灶如平台式燃气炉和嵌入式燃气炉,其中嵌入式燃气炉的燃烧器为单通道上进风结构,燃气是通过一个通道进入,由阀门控制燃气火力,无法单独使用内火圈燃气。At present, up-wind gas stoves on the market such as platform-type gas stoves and embedded gas stoves, of which the burner of the embedded gas stove has a single-channel up-air structure, and the gas is entered through one channel. The gas firepower is controlled by a valve and cannot be separated. Use inner ring gas.
为解决单通道即没有独立的中心火,且热负荷小的问题,一中国专利CN1212348A(申请号为CN98120026.5)公开了一种结构简单、能独立调节中心火和外圈火的燃气燃烧器,即这种燃烧器一般设有一个中心喷射器和一个外环喷射器,但这种燃气燃烧器在实验中发现其燃烧性能不够理想,一次空气供给给中心火焰头和外部火焰头的速度不均,并由于中心喷射器和外环喷射器的吸气不均匀,燃气与一次空气的不完全混合也会造成中心火和外圈火的火焰长度不一,同时,引射管受上进风燃烧器高度的限制,不能做得太长,致使通道阻力大,功率大时易出现黄焰,特别是在小火档位时,黄焰更明显。In order to solve the problem that there is no independent central fire in a single passage and the heat load is small, a Chinese patent CN1212348A (application number CN98120026.5) discloses a gas burner with a simple structure and capable of independently adjusting the central fire and the outer ring fire. That is, this burner is generally equipped with a central injector and an outer ring injector, but this gas burner was found to have insufficient combustion performance in experiments. The speed at which the air is supplied to the central flame head and the external flame head is different. Due to the uneven intake of the central injector and the outer ring injector, the incomplete mixing of the gas and the primary air will also cause the flame length of the central fire and the outer ring fire to be different. Limitation of the height of the device should not be made too long, resulting in large channel resistance, and yellow flames tend to appear when the power is high, especially at low fire gears, the yellow flames are more obvious.
而一中国实用新型专利CN2427756Y(专利号为ZL00233192.6)为解决上述问题而提供的一种解决方案,具体为:在原单一主通道旁增设副通道,使副通道直通内燃圈,形成两路燃气均可同时进入燃气混合室,燃烧时也可关闭主通道,单独使用副通道,这种构造的炉具在使用时根据需要,内外火圈可同时开启,也可关闭外火圈,单独使用内火圈,并由开关控制调节火力,既能达到烹调菜肴的目的,又可节约燃气,减少污染,但其在主通道旁仅增设一个副通道,主通道对应外火圈燃气喷射器,副通道对应内圈火燃气喷射器,副通道相对主通道偏心设置,从而使得副通道对应的小火盖中沿周向设置的火孔流出的燃气压力不均,从而导致小火盖产生的内圈火的火焰不均匀。A Chinese utility model patent CN2427756Y (patent number ZL00233192.6) provides a solution to solve the above problems, specifically: adding a secondary channel next to the original single main channel to make the secondary channel pass directly to the internal combustion circle, forming two circuits Gas can enter the gas mixing chamber at the same time, and the main passage can be closed when burning, and the auxiliary passage can be used alone. According to the needs of the stove with this structure, the inner and outer fire rings can be opened at the same time, and the outer fire ring can also be closed and used alone. The inner fire ring, and the fire power is controlled by the switch, can not only achieve the purpose of cooking dishes, but also save gas and reduce pollution, but it only adds a sub-channel next to the main channel, which corresponds to the outer fire ring gas injector. The channel corresponds to the inner ring fire gas injector, and the auxiliary channel is eccentrically disposed with respect to the main channel, so that the pressure of the gas flowing out of the fire holes arranged in the circumferential direction in the small fire cover corresponding to the auxiliary channel is uneven. The flame of the fire is uneven.
为了避免产生火焰不均匀的问题,如一中国实用新型专利CN204026673U(专利号为ZL201420414274.0)提及一上进风燃烧器,其包括固定在底壳上的本体座,其中底壳全封闭,底部不开孔,本体座上有三个喷射器,两个外环喷射器和一个内环喷射器,本体座与面板固定,本体与本体座安装后,喷射器的中心线对应外环文丘里,内环文丘里中心线。由于喷射器喷出的高速流体容易产生负压,所以使得空气在文丘里处被卷入,这部分空气不流入机体内部,直接从大气获得并被输送到喷射器附近,而两外环喷射器位于内环喷射器的两侧,两外环喷射器对应的外环火盖整环为相贯通,一旦两外环喷射 器中的其中一个被堵塞,则另一外环喷射器喷出的燃气部分会通过外环火盖而倒灌进入被堵塞的外环喷射器所对应的燃气通道,若集聚的燃气过多,则容易引起爆炸。In order to avoid the problem of non-uniform flame, for example, a Chinese utility model patent CN204026673U (patent number ZL201420414274.0) mentions an upper inlet burner, which includes a body seat fixed on the bottom shell, wherein the bottom shell is fully closed and the bottom is not Opening, the body seat has three injectors, two outer ring injectors and one inner ring injector. The body seat is fixed to the panel. After the body and the body seat are installed, the center line of the injector corresponds to the outer ring of Venturi and the inner ring. Venturi centerline. Because the high-speed fluid ejected by the ejector is liable to generate negative pressure, the air is drawn into the venturi. This part of the air does not flow into the body, is directly obtained from the atmosphere and is sent to the vicinity of the ejector. The two outer ring ejectors It is located on both sides of the inner ring injector. The outer ring of the outer ring fire cover corresponding to the two outer ring injectors is connected. Once one of the two outer ring injectors is blocked, the gas emitted by the other outer ring injector is blocked. Part of it will be poured back into the gas passage corresponding to the blocked outer ring injector through the outer ring fire cover. If too much gas is accumulated, it will easily cause an explosion.
发明内容Summary of the Invention
本发明所要解决的一个技术问题是针对上述现有技术现状而提供一种有效提高一次空气与燃气混合均匀度的灶具燃烧器。A technical problem to be solved by the present invention is to provide a cooker burner that effectively improves the uniformity of the mixing of primary air and gas in view of the existing state of the art.
本发明所要解决的另一个技术问题是针对上述现有技术现状而提供一种不易发生黄焰和火力无力的灶具燃烧器。Another technical problem to be solved by the present invention is to provide a cooker burner that does not easily generate yellow flames and firepower in view of the above-mentioned current state of the art.
本发明解决上述技术问题所采用的技术方案为:该灶具燃烧器,包括有:The technical solution adopted by the present invention to solve the above technical problems is that the cooker burner includes:
基座,具有开口朝上的凹腔,该凹腔的中央位置设置有第一喷射器;The base has a concave cavity with an opening facing upward, and a first ejector is disposed at a central position of the cavity;
连接体,设置在所述基座之上,包括有板体,所述板体的中央位置具有竖向的第一引射通道,所述板体的外周沿则在水平方向上延伸并能覆盖住所述凹腔;The connecting body is disposed on the base and includes a plate body. The center of the plate body has a vertical first ejection channel, and the outer periphery of the plate body extends in a horizontal direction and can cover the body. Hold the cavity;
一次空气通道,沿所述连接体周向地、间隔设置,用于连通所述凹腔与外界以将一次空气从外界引入基座的凹腔内;Primary air passages are arranged circumferentially and at intervals along the connecting body, and are used to communicate the cavity with the outside to introduce primary air from the outside into the cavity of the base;
火盖,设置在所述连接体之上,并且与所述连接体之间形成有位于中央的第一混气室和位于外围的第二混气室;所述第一混气室对应于所述第一引射通道,用于混合一次空气和燃气;以及A fire cover is disposed on the connecting body, and a first mixing chamber located in the center and a second mixing chamber located on the periphery are formed between the connecting cover and the connecting body, and the first mixing chamber corresponds to the first mixing chamber. A first ejection channel for mixing primary air and gas; and
传输通道,用于将混合后的一次空气和燃气从所述第一混气室传输至到第二混气室;A transmission channel for transmitting the mixed primary air and gas from the first mixing chamber to the second mixing chamber;
其特征在于It is characterized by
所述第一引射通道为夹层结构,包括有位于中心的中心腔室和围绕中心腔室的外周腔室;所述中心腔室的下端入口与所述的基座凹腔相连通且与所述第一喷射器相对,所述中心腔室的上端出口与所述的第一混气室相连通;所述外周腔室的下端开口与所述的基座凹腔相连通,所述外周腔室的上端封闭为盲端。The first ejection channel is a sandwich structure, and includes a central chamber located at the center and a peripheral chamber surrounding the central chamber; a lower end entrance of the central chamber is in communication with the base cavity and communicates with the base cavity. The first ejector is opposite, and the upper outlet of the central chamber is in communication with the first air-mixing chamber; the lower end of the outer chamber is in communication with the base cavity, and the outer chamber The upper end of the chamber is closed as a blind end.
所述第一引射通道呈上下均敞口的筒体结构,所述筒体包括有自内向外间隔设置的内周壁和外周壁,所述内周壁将筒体分隔成所述的中心腔室和外周腔室,并且,所述内周壁上端缘与外周壁上端缘相接连而形成封闭端面。借助于该封闭端面,能更好地使中心腔室的燃气更直接地与外周腔室进行一次空气的混合,避免燃气与一次空气由不同方向的汇合而相互撞击,进一步提高一次空气均布在中心腔室外周的均匀度、提高一次空气吸入率的同时,还能有效减少动能损失。The first ejection channel has a cylindrical structure that is open from top to bottom. The cylinder includes an inner peripheral wall and an outer peripheral wall spaced from the inside to the outside. The inner peripheral wall divides the cylinder into the central chamber. And the outer peripheral chamber, and the upper end edge of the inner peripheral wall is connected to the upper end edge of the outer peripheral wall to form a closed end surface. By means of the closed end surface, the gas in the central chamber can be more directly mixed with the air in the peripheral chamber to prevent the gas and the primary air from colliding with each other from different directions, thereby further improving the uniform distribution of the primary air. The uniformity of the outer periphery of the central cavity, while improving the primary air intake rate, can also effectively reduce the loss of kinetic energy.
进一步地,所述外周腔室的外周壁下端缘低于所述中心腔室的周壁下端缘。该设计能使得中心腔的下游先进行一次空气和燃气的预混,再借助于第一混气室自身中获得的文丘里效应所造成的低压,预混后的一次空气和燃气被吸入至第一混气室后再进行第二次的混合,有效提高了一次空气与燃气混合均匀度。Further, a lower end edge of a peripheral wall of the peripheral chamber is lower than a lower end edge of a peripheral wall of the central chamber. This design enables the air and gas to be premixed downstream of the central cavity first, and then with the help of the low pressure caused by the Venturi effect obtained in the first mixing chamber itself, the premixed air and gas are sucked into the first The second mixing is performed after one mixing chamber, which effectively improves the uniformity of the primary air and gas mixing.
为了进一步地提高一次空气与燃气的混合均匀度,所述火盖内部具有自下往上凹、并供所述第一引射通道伸入的凹槽,该凹槽与所述板体围设构成所述第一混气室,所述凹槽顶壁下表面与第一引射通道的封闭端面之间围成径向文丘里腔。同时,该径向文丘里腔还能有效降低燃烧器的高度。当然也可以采用同样具有文丘里效应腔的混气室,如轴向文丘里腔。In order to further improve the mixing uniformity of the primary air and the gas, the fire cover has a concave groove from the bottom to the top, and the groove for the first ejection channel to extend in, and the groove is surrounded by the plate body. The first air mixing chamber is formed, and a radial venturi cavity is enclosed between the lower surface of the top wall of the groove and the closed end surface of the first ejection channel. At the same time, the radial venturi chamber can also effectively reduce the height of the burner. Of course, it is also possible to use a gas mixing chamber that also has a Venturi effect cavity, such as an axial Venturi cavity.
径向文丘里腔可以通过如下方式形成,第一引射通道的封闭端面包括有水平设置的第一端面以及沿第一端面下边沿自内向外逐渐向下倾斜的第二端面,第一端面与凹腔顶壁下表面的竖直距离D1、第二端面上边沿与凹槽顶壁下表面的竖直距离D2以及第二端面下边沿与凹槽顶壁下表面的竖直距离D3满足有如下关系:D1<D2<D3,从而构成径向文丘里腔。The radial venturi cavity can be formed in the following manner. The closed end surface of the first ejection channel includes a first end surface disposed horizontally and a second end surface gradually inclined downward from the inside along the lower edge of the first end surface. The vertical distance D1 of the lower surface of the cavity top wall, the vertical distance D2 of the upper edge of the second end surface and the lower surface of the groove top wall, and the vertical distance D3 of the lower edge of the second end surface and the lower surface of the groove top wall are as follows: Relationship: D1 <D2 <D3, thus forming a radial venturi cavity.
进一步地,所述第一端面与所述第二端面之间的夹角α为5°~15°。角度大了则炉头太高,炉头体积增大,将很难满足尤其是嵌入式燃气灶的要求,角度过小的话,则气流阻力大,对降低气流阻力和减少容腔体积的效果不明显。Further, an included angle α between the first end surface and the second end surface is 5 ° to 15 °. If the angle is too large, the burner will be too high, and the volume of the burner will increase. It will be difficult to meet the requirements of built-in gas stoves. If the angle is too small, the airflow resistance will be large, and the effect on reducing the airflow resistance and reducing the volume of the cavity is not good. obvious.
过一步地,所述火盖包括有同心间隔设置的内环部和外环部,所述凹槽则设置在内环部的内部,所述内环部的顶端高出所述外环部的顶端,所述内环部包括有向上凸设的环形壁以及覆盖在所述环形壁上方的主盖板,所述环形壁沿着圆周方向间隔地成型有径向的主火槽和稳焰槽,并与主盖板的外周壁配合分别形成主火孔和稳焰孔。One step further, the fire cover includes an inner ring portion and an outer ring portion that are concentrically spaced, the groove is provided inside the inner ring portion, and the top end of the inner ring portion is higher than the outer ring portion. At the top end, the inner ring portion includes an annular wall protruding upward and a main cover plate covering the annular wall, and the annular wall is formed with a radial main fire groove and a flame stabilization groove at intervals along the circumferential direction. And cooperate with the outer peripheral wall of the main cover plate to form a main fire hole and a flame stabilization hole respectively.
其中第二混气室的构成方式可以为如下方式:所述外环部包括有同心间隔设置的内圈壁面和外圈壁面以及连接内圈壁面和外圈壁面的底壁,所述内圈壁面和外圈壁面上方覆盖有副盖板,所述内圈壁面、外圈壁面、底壁以及副盖板共同围设成所述第二混气室。The structure of the second gas mixing chamber may be as follows: the outer ring portion includes inner ring wall surfaces and outer ring wall surfaces that are concentrically spaced, and a bottom wall connecting the inner ring wall surface and the outer ring wall surface, and the inner ring wall surface And the outer ring wall surface is covered with a sub cover plate, and the inner ring wall surface, the outer ring wall surface, the bottom wall, and the sub cover plate are collectively surrounded to form the second mixing chamber.
进一步地,所述外圈壁面的上表面沿着圆周方向间隔地成型有径向的第一主火槽和第二主火槽,第一主火槽的开槽深度大于第二主火槽的开槽深度。第一主火槽的开槽深度大于第二主火槽的开槽深度,能自身形成二次空气的补充间隙。Further, the upper surface of the wall surface of the outer ring is formed with radial first main fire grooves and second main fire grooves at intervals along the circumferential direction, and the groove depth of the first main fire groove is greater than that of the second main fire groove. Grooving depth. The slot depth of the first main fire slot is greater than the slot depth of the second main fire slot, and it can form a supplementary gap of secondary air by itself.
进一步地,所述主火孔和稳焰孔的外围沿周向间隔地分布有对应的二次空气孔,所述二次空气孔开设在所述内圈壁面和所述环形壁之间的连接部上,并且每个二次空气孔均与所述火盖下方的空气连通。Further, corresponding secondary air holes are distributed along the circumference of the main fire hole and the flame-stabilizing hole, and the secondary air holes are connected between the inner ring wall surface and the annular wall. And each secondary air hole is in communication with the air under the fire cover.
一次空气通道的设置可以采用现有技术中的任何一种连通外界与基座凹腔的管道,同样的二次空气通道的设置也可以采用现有技术中的任何一种连通外界与二次空气孔的管道,本发明为从燃烧器的结构简单和紧凑的角度考虑,一次空气通道和二次空气通道的形成采用如下方式形成,所述二次空气孔向下凸设有环形壁,所述环形壁围成有环形腔室,所述连接体沿周向地设有多个径向、用于连通所述环形腔室与外界的二次空气通道,所述一次空气通道同样设置有多个,并沿着所述连接体周向地径向设置,所述二次空气通道与所述一次空气通道间隔设置。The primary air channel can be set up by using any kind of pipe connecting the outside world with the cavity of the base, and the same secondary air path can also be set up by any type of existing technology used to connect the outside world to the secondary air. In the present invention, considering the simple and compact structure of the burner, the primary air channel and the secondary air channel are formed in the following manner. The secondary air hole is downwardly provided with an annular wall. The annular wall surrounds an annular chamber, and the connecting body is provided with a plurality of radial secondary air passages for connecting the annular chamber and the outside in the circumferential direction. The primary air passage is also provided with a plurality of secondary air passages. And arranged along the connecting body in a radial direction circumferentially, and the secondary air passage is spaced from the primary air passage.
二次空气通道与一次空气通道间隔设置,可以采用如下方式间隔:所述连接体的板 体下表面向下延伸有沿所述板体周向地、径向设置的至少一对挡板,在每对所述挡板搁置在所述基座上的状态下,每对所述挡板与基座之间的间隙则构成的所述一次空气通道的入气口。The secondary air passage and the primary air passage are spaced apart from each other, and may be spaced in the following manner: at least a pair of baffles provided along a circumferential direction of the plate body downwardly extend from a lower surface of the plate body of the connecting body, In a state where each pair of the baffles is resting on the base, an air inlet of the primary air passage formed by a gap between the pair of the baffles and the base.
进一步地,所述外环部的内圈壁面开设有缺口,该缺口与所述相邻环形腔室的环形周壁之间围成的腔体相通连,所述缺口和所述腔体共同构成所述传输通道。Further, a notch is formed on an inner ring wall surface of the outer ring portion, and the notch is in communication with a cavity enclosed between the annular peripheral walls of the adjacent annular chambers, and the notch and the cavity together constitute a cavity. Mentioned transmission channel.
为了使得用户单独地控制燃烧器的内环部形成的中心火和外环部形成的外周火,所述内环部的环形壁以及覆主盖板之间形成与所述第一混气室和第二混气室相流体分离的第三混气室,所述基座的凹腔内还容纳有至少一个第二喷射器,并且所述基座上设置有与独立于所述第一引射通道的至少一个第二引射通道,所述第二引射通道与所述基座和第二喷射器相流体连接。该第三混气室的燃料混合物直接由第二引射通道进行供给,并与第一混气室和第二混气室流体分离,由此可单独地对其进行供给。In order to allow the user to individually control the central fire formed by the inner ring portion of the burner and the peripheral fire formed by the outer ring portion, a ring-shaped wall of the inner ring portion and the main cover plate are formed between the first mixing chamber and the A third gas mixing chamber in which the second gas mixing chamber is phase-fluid-separated, the cavity of the base further contains at least one second ejector, and the base is provided with a space separate from the first ejector At least one second ejection channel of the channel, the second ejection channel being fluidly connected to the base and the second ejector. The fuel mixture of the third mixing chamber is directly supplied from the second injection channel, and is fluidly separated from the first mixing chamber and the second mixing chamber, so that it can be separately supplied.
进一步地,所述火盖顶壁于内环部的环形壁内围开设有至少一个通孔,所述通孔向下凸设有凸壁,所述凸壁围成的腔室即构成所述第二引射通道内燃料混合物进入所述第三混气室的顶部开口。当然本发明可以将第二引射通道和第三混气室共同限定在、沿基座轴向方向延伸、并呈收敛-扩散的管状结构中,管状结构部分在火盖中形成,部分中基座中形成。Further, the top wall of the fire cover is provided with at least one through hole in the annular wall of the inner ring portion, and the through hole is convexly provided with a convex wall downward, and the cavity surrounded by the convex wall constitutes the cavity. The fuel mixture in the second injection channel enters the top opening of the third mixing chamber. Of course, in the present invention, the second ejection channel and the third gas mixing chamber can be limited to a tubular structure extending along the axial direction of the base and showing convergence-diffusion. The tubular structure is partially formed in the fire cover and part of the base is formed. Block formed.
按上述的发明构思,所述第二引射通道为轴向文丘里管。According to the above-mentioned inventive concept, the second ejection channel is an axial venturi tube.
为尽可能避免因喷射器堵塞发生燃气倒灌,继而引起爆炸的危险发生,所述火盖顶壁上设置有至少一个分隔板,该分隔板将所述第三混气室分隔成至少两个独立腔室,每个独立腔室均与各自对应的所述第二引射通道连通。该独立腔室的形成能有效防止因其中一个第二喷射器的堵塞而发生燃气倒灌,从而引起爆炸的现象发生。In order to avoid as far as possible the danger of explosion due to gas injection due to blockage of the injector, at least one partition plate is provided on the top wall of the fire cover, which partitions the third mixing chamber into at least two Independent chambers, each of which is in communication with the corresponding second ejection channel. The formation of the independent chamber can effectively prevent the gas from being reversed due to the blockage of one of the second injectors, thereby causing an explosion.
为了满足燃烧器燃气火力由阀门调节控制,可同时使用内、外环火,也可单独使用内环火,特别是在内部,中心和外部的圆周方向的火焰中火焰基本没有紊流和干涉,同时还兼具有小火的烹饪功能,所述内环部向上凸设的环形壁与主盖板之间还设置有隔板,所述隔板的顶面开设有至少一个供经所述第三混气室混合后的燃料混合物流出的出气孔,所述隔板下表面与内环部上表面具有第一间隙,所述隔板上表面与所述主盖板之间具有第二间隙,所述第二间隙构成内环部的出火口。In order to satisfy the burner gas fire power controlled by the valve, the inner and outer ring fires can be used at the same time, or the inner ring fires can be used alone, especially in the flames in the inner, central and outer circumferential directions. The flames have basically no turbulence and interference. At the same time, it also has the function of cooking with low fire. A partition plate is also provided between the annular wall protruding upward from the inner ring portion and the main cover plate. At least one of the top surfaces of the partition plate is provided for passing through the first portion. The air outlet holes where the fuel mixture after the three mixing chambers are mixed out, the lower surface of the partition plate and the upper surface of the inner ring portion have a first gap, and the upper surface of the partition plate and the main cover plate have a second gap, The second gap forms a fire outlet of the inner ring portion.
为了实现隔板,主盖板的结构配合,所述内环部上表面的中央位置向上凸设有一圈凸圈,所述隔板在对应位置具有能搁置在该凸圈上的安装孔,所述隔板的外侧边缘与所述环形壁相抵,所述隔板的上表面沿周向间隔地设置有至少两条用于支承所述主盖板的凸棱,所述主盖板则在对应凸圈的位置向下延伸有能穿过所述安装孔、并与所述凸圈适配的环形凸壁。In order to realize the structure of the partition plate and the main cover plate, a circle of convex rings is protruded upward at the center position of the upper surface of the inner ring portion, and the partition plate has a mounting hole that can rest on the convex ring at the corresponding position. The outer edge of the partition plate abuts the annular wall, and the upper surface of the partition plate is provided with at least two convex ribs for supporting the main cover plate at intervals in the circumferential direction. An annular convex wall that can pass through the mounting hole and is adapted to the convex ring extends from the position of the convex ring.
与现有技术相比,本发明的优点在于:第一引射通道的夹层结构设计,位于外层的外周腔室能使得进入该腔室的一次空气更加均匀地分布在中心腔室的外围,从而在第一 喷射器的作用下能更好地使中心腔室的燃气更直接地与经外周腔室均匀后的一次空气进行一次空气的混合,避免燃气与一次空气由不同方向的汇合而相互撞击,在进一步提高了一次空气与燃气混合的均匀度、提高一次空气吸入率的同时,还能有效减少动能损失,从而使得上进风燃烧器的火焰短、均匀而有力,不会出现黄焰、回火等缺陷。Compared with the prior art, the present invention has the advantages that the sandwich structure design of the first ejection channel is located in the outer peripheral chamber so that the primary air entering the chamber is more evenly distributed on the periphery of the central chamber. Therefore, under the action of the first injector, the gas in the central chamber can be more directly mixed with the primary air after being uniformed by the peripheral chamber, so as to prevent the gas and the primary air from converging in different directions to interact with each other. The impact, while further improving the uniformity of the primary air and gas mixing and the primary air intake rate, can also effectively reduce the loss of kinetic energy, so that the flame of the upwind burner is short, uniform and powerful, and no yellow flame, Defects such as tempering.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明实施例的结构示意图;FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
图2为图1的分解结构示意图;FIG. 2 is a schematic exploded structure diagram of FIG. 1; FIG.
图3为图1一个角度的剖视图;Figure 3 is a sectional view at an angle of Figure 1;
图4为图3中A处中放大示意图视图;FIG. 4 is an enlarged schematic view at A in FIG. 3; FIG.
图5为本发明实施例中第一引射通道和第二引射通道的结构示意图;5 is a schematic structural diagram of a first ejection channel and a second ejection channel in an embodiment of the present invention;
图6为图1另一个角度的剖视图;6 is a cross-sectional view from another angle of FIG. 1;
图7为本发明实施例中火盖一个角度的结构示意图;7 is a schematic structural view of an angle of a fire cover in an embodiment of the present invention;
图8为本发明实施例中火盖另一个角度的结构示意图。FIG. 8 is a schematic structural view of the fire cover at another angle in the embodiment of the present invention.
具体实施方式Detailed ways
以下结合附图实施例对本发明作进一步详细描述。The present invention is described in further detail below with reference to the embodiments of the accompanying drawings.
如图1~8所示,为本发明上进风灶具燃烧器的最佳实施例。该灶具燃烧器可适用于传统的上进风燃烧器也可适用于如欧洲的意大利萨巴夫燃烧器。该灶具燃烧器包括基座1、设置在基座1之上的连接体2、一次空气通道4、设置在连接体2之上的火盖5和传输通道6。As shown in FIGS. 1 to 8, it is a preferred embodiment of the burner of the updraft cooker of the present invention. The cooker burner can be applied to both a traditional up-wind burner and an Italian Sabaf burner such as Europe. The cooker burner includes a base 1, a connecting body 2 provided on the base 1, a primary air passage 4, a fire cover 5 and a transmission passage 6 provided on the connecting body 2.
其中,基座1具有开口朝上的凹腔11,该凹腔11的中央位置设置有第一喷射器12;Wherein, the base 1 has a concave cavity 11 with an opening facing upward, and a first ejector 12 is provided at a central position of the concave cavity 11;
连接体2包括有板体21,板体21的中央位置具有竖向的第一引射通道3,该板体21的外周沿211则在水平方向上延伸并能覆盖住凹腔11;The connecting body 2 includes a plate body 21 having a vertical first ejection channel 3 at a central position of the plate body 21, and an outer periphery of the plate body 21 extends along the horizontal direction 211 and can cover the cavity 11;
一次空气通道4沿连接体2周向地、间隔设置,一次空气通道4用于连通凹腔11与外界以将一次空气从外界引入基座1的凹腔11内;The primary air passages 4 are arranged circumferentially and spaced along the connecting body 2. The primary air passages 4 are used to communicate the cavity 11 with the outside to introduce the primary air from the outside into the cavity 11 of the base 1;
该火盖5与连接体2之间形成有位于中央的第一混气室514和位于外围的第二混气室525,该第一混气室514对应于第一引射通道3,用于混合一次空气和燃气。A first mixing chamber 514 in the center and a second mixing chamber 525 in the periphery are formed between the fire cover 5 and the connecting body 2. The first mixing chamber 514 corresponds to the first ejection channel 3 and is used for Mix air and gas once.
传输通道6用于将混合后的一次空气和燃气从第一混气室514传输至到第二混气室525。The transmission channel 6 is used for transmitting the mixed primary air and gas from the first mixing chamber 514 to the second mixing chamber 525.
为了有效提高一次空气与燃气混合均匀度,第一引射通道3为夹层结构,包括位于中心的中心腔室311和围绕中心腔室311的外周腔室312,中心腔室311的下端入口与基座凹腔11相连通且与第一喷射器12相对,中心腔室311的上端出口与第一混气室514 相连通;外周腔室312的下端开口与基座凹腔11相连通,外周腔室312的上端封闭为盲端。In order to effectively improve the uniformity of the primary air and gas mixing, the first ejection channel 3 is a sandwich structure, which includes a central chamber 311 located at the center and an outer peripheral chamber 312 surrounding the central chamber 311. The lower end entrance of the central chamber 311 and the base The recessed cavity 11 communicates with the first ejector 12, and the upper exit of the center chamber 311 communicates with the first gas mixing chamber 514. The lower end of the peripheral cavity 312 communicates with the recessed cavity 11 in the base, and the peripheral cavity The upper end of the chamber 312 is closed as a blind end.
本实施例中,第一引射通道3呈上下均敞口的筒体结构,筒体包括有自内向外间隔设置的内周壁31和外周壁32,内周壁31将筒体分隔成位于中心的中心腔室311和围绕中心腔室311的外周腔室312,并且,内周壁31上端缘与外周壁32上端缘相接连而形成封闭端面33,借助于该封闭端面33,能更好地使中心腔室311的燃气更直接地与外周腔室312进行一次空气的混合,避免燃气与一次空气由不同方向的汇合而相互撞击,进一步提高一次空气均布在中心腔室311外周的均匀度、提高一次空气吸入率的同时,还能有效减少动能损失。同时,外周腔室312的外周壁32下端缘低于中心腔室311的周壁下端缘。该设计能使得在中心腔的下游先进行一次空气和燃气的预混,再借助于第一混气室514自身中获得的文丘里效应所造成的低压,预混后的一次空气和燃气被吸入至第一混气室514后再进行第二次的混合,有效提高了一次空气与燃气混合均匀度。In this embodiment, the first ejection channel 3 has a cylindrical structure that is open from top to bottom. The cylinder includes an inner peripheral wall 31 and an outer peripheral wall 32 spaced from the inside to the outside. The inner peripheral wall 31 divides the cylinder into a centrally located one. The central chamber 311 and the outer peripheral chamber 312 surrounding the central chamber 311, and the upper end edge of the inner peripheral wall 31 and the upper end edge of the outer peripheral wall 32 are connected to form a closed end surface 33. With the closed end surface 33, the center can be better The gas in the chamber 311 is directly mixed with the outer chamber 312 once to prevent the gas and the primary air from colliding with each other from different directions, thereby further improving the uniformity of the primary air evenly distributed on the outer periphery of the central chamber 311, At the same time of primary air intake rate, it can also effectively reduce kinetic energy loss. Meanwhile, the lower end edge of the outer peripheral wall 32 of the outer peripheral chamber 312 is lower than the lower end edge of the peripheral wall of the central chamber 311. This design enables a pre-mixing of air and gas first downstream of the central cavity, and then with the help of the low pressure caused by the Venturi effect obtained in the first mixing chamber 514 itself, the pre-mixed air and gas are sucked in The second mixing is performed after the first mixing chamber 514, which effectively improves the uniformity of the air and gas mixing once.
具体地,第一混气室514的设置优选地为火盖5内部形成,其具有自下往上凹、并供第一引射通道3伸入的凹槽511,该凹槽511与连接体2的板体21构成第一混气室514,凹槽511顶壁下表面与第一引射通道3的封闭端面33之间围成径向文丘里腔60。该径向文丘里腔60通如如下方式形成,第一引射通道3的封闭端面33包括有水平设置的第一端面331以及沿第一端面331下边沿自内向外逐渐向下倾斜的第二端面332,第一端面331与凹槽511顶壁下表面的竖直距离D1、第二端面332上边沿与凹槽511顶壁下表面的竖直距离D2以及第二端面332下边沿与凹槽511顶壁下表面的竖直距离D3满足有如下关系:D1<D2<D3,从而构成径向文丘里腔6。更优地,封闭端面33的第一端面331与第二端面332之间的夹角α为5°~15°,本实施例中优选为10°。Specifically, the arrangement of the first air-mixing chamber 514 is preferably formed inside the fire cover 5 and has a recess 511 recessed from the bottom to the top and extending into the first ejection channel 3, and the recess 511 and the connecting body The plate body 21 of 2 constitutes the first gas mixing chamber 514, and a radial venturi cavity 60 is enclosed between the lower surface of the top wall of the groove 511 and the closed end surface 33 of the first ejection channel 3. The radial venturi cavity 60 is formed in the following manner. The closed end surface 33 of the first ejection channel 3 includes a first end surface 331 horizontally disposed and a second end surface gradually inclined downward from the inside along the lower edge of the first end surface 331. End surface 332, vertical distance D1 between first end surface 331 and lower surface of top wall of groove 511, vertical distance D2 between upper edge of second end surface 332 and lower surface of top wall of groove 511, and lower edge of second end surface 332 and groove The vertical distance D3 of the lower surface of the 511 top wall satisfies the following relationship: D1 <D2 <D3, thereby forming a radial venturi cavity 6. More preferably, the included angle α between the first end surface 331 and the second end surface 332 of the closed end surface 33 is 5 ° to 15 °, and in this embodiment, it is preferably 10 °.
由于第一引射通道3与第一混气室514的径向文丘里腔6是直接从垂直90°过渡到水平设置,省去了其它衔接部件,以减少局部阻力损失,同时该夹角α的角度设置可以让燃气和一次空气混合物喷射到第二混气室525时减少阻力损失,引射的更加顺畅、平滑过渡,该夹角α在确保能有效减少局部阻力损失的前提下,还不容易造成引射管的体积过于庞大。Since the first ejection channel 3 and the radial venturi chamber 6 of the first mixing chamber 514 directly transition from a vertical 90 ° to a horizontal setting, other connecting components are omitted to reduce the local resistance loss, and the angle α The angle setting can reduce the resistance loss when the gas and primary air mixture is injected into the second mixing chamber 525, and the ejection is smoother and smoother. The included angle α is not as long as it can effectively reduce the local resistance loss. It is easy to cause the volume of the ejection tube to be too large.
另外,第二混气室525的构成方式可以为如下方式:火盖5包括有同心间隔设置的内环部51和外环部52,凹槽511则设置在内环部51的内部,内环部51的顶端高出外环部52的顶端,内环部51包括有向上凸设的环形壁512以及覆盖在环形壁512上方的主盖板513,环形壁512沿着圆周方向间隔地成型有径向的主火槽5121和稳焰槽5122,并与主盖板513的外周壁32配合分别形成主火孔和稳焰孔。外环部52包括有同心间隔设置的内圈壁面521和外圈壁面522以及连接内圈壁面521和外圈壁面522的底壁523,内圈壁面521和外圈壁面522上方覆盖有副盖板524,内圈壁面521、外圈壁面522、底壁523以及副盖板524共同围设成第二混气室525。同时,外圈壁面522的上表面沿着 圆周方向间隔地成型有径向的第一主火槽5221和第二主火槽5222,第一主火槽5221的开槽深度大于第二主火槽5222的开槽深度,能自身形成二次空气的补充间隙。In addition, the configuration of the second gas mixing chamber 525 may be as follows: the fire cover 5 includes an inner ring portion 51 and an outer ring portion 52 disposed at a concentric interval, and the groove 511 is provided inside the inner ring portion 51, and the inner ring The top end of the portion 51 is higher than the top end of the outer ring portion 52. The inner ring portion 51 includes an annular wall 512 protruding upward and a main cover plate 513 covering the annular wall 512. The annular wall 512 is formed at intervals in the circumferential direction. The main fire slot 5121 and the flame holding groove 5122 in the radial direction cooperate with the outer peripheral wall 32 of the main cover plate 513 to form a main fire hole and a flame holding hole, respectively. The outer ring portion 52 includes inner ring wall surfaces 521 and outer ring wall surfaces 522 arranged concentrically at a distance, and a bottom wall 523 connecting the inner ring wall surfaces 521 and the outer ring wall surfaces 522. The inner ring wall surfaces 521 and the outer ring wall surfaces 522 are covered with a sub cover plate. 524, the inner ring wall surface 521, the outer ring wall surface 522, the bottom wall 523, and the sub cover plate 524 are collectively surrounded to form a second gas mixing chamber 525. At the same time, the upper surface of the outer ring wall surface 522 is spaced along the circumferential direction with radial first main fire grooves 5221 and second main fire grooves 5222. The depth of the first main fire groove 5221 is greater than that of the second main fire grooves. The slot depth of 5222 can form a supplementary gap for secondary air.
为了给内环部51形成的中心火补充二次空气,主火孔和稳焰孔的外围沿周向间隔地分布有对应的二次空气孔7,二次空气孔7开设在内圈壁面521和环形壁512之间的连接部上,并且每个二次空气孔7均与火盖5下方的二次空气通道40连通,该二次空气孔7还具有一个巧妙的作用即构成传输通道6的一部分,具体为,二次空气孔7向下凸设有环形周壁71,环形周壁71围成有环形腔室,基座1沿周向地设有多个径向、用于连通环形腔室与外界的二次空气通道40,同时外环部52的内圈壁面521开设有缺口5211,该缺口5211与相邻环形腔室的环形周壁72之间围成的腔体相通连,缺口5211和腔体共同构成传输通道6。同样地一次空气通道4也设置有多个,并为沿着基座1周向地径向设置,二次空气通道40与一次空气通道4通过连接体2的板体21下表面向下延伸有沿板体21周向地、径向设置的至少一对挡板212间隔开,在每对挡板212搁置在基座1上的状态下,每对挡板212与基座1之间的间隙则构成的一次空气通道4的入气口。该分隔的意义在于有效地分隔一次空气和二次空气通道40,避免相互之间的影响。In order to supplement the secondary air for the central fire formed by the inner ring portion 51, corresponding secondary air holes 7 are distributed along the circumference of the main fire hole and the flame stabilizing hole, and the secondary air holes 7 are opened on the inner ring wall surface 521. On the connection part with the annular wall 512, and each secondary air hole 7 is in communication with the secondary air passage 40 below the fire cover 5, the secondary air hole 7 also has a clever role to form the transmission passage 6 Part of the secondary air hole 7 is convexly provided with an annular peripheral wall 71 protruding downward, the annular peripheral wall 71 surrounds an annular cavity, and the base 1 is provided with a plurality of radial directions for communicating with the annular cavity in the circumferential direction. A gap 5211 is formed on the inner ring wall surface 521 of the outer ring portion 52 and the secondary air passage 40 of the outside, and the gap 5211 communicates with the cavity enclosed between the annular peripheral walls 72 of the adjacent annular chamber. The notch 5211 and The cavities together constitute a transmission channel 6. Similarly, a plurality of primary air passages 4 are also provided, and are arranged radially along the circumference of the base 1. The secondary air passages 40 and the primary air passages 4 extend downwardly through the lower surface of the plate body 21 of the connection body 2. At least one pair of baffles 212 arranged circumferentially and radially along the plate body 21 are spaced apart, and in a state where each pair of baffles 212 is resting on the base 1, a gap between each pair of baffles 212 and the base 1 The air inlet of the primary air passage 4 is formed. The significance of this separation is to effectively separate the primary air and secondary air passages 40 to avoid mutual influence.
为了使得用户单独地控制燃烧器的内环部51形成的中心火和外环部52形成的外周火,内环部51的环形壁512以及覆主盖板513之间形成与第一混气室514和第二混气室525相流体分离的第三混气室8,基座1的凹腔11内还容纳有至少一个第二喷射器9,并且基座1上设置有与独立于第一引射通道3的至少一个第二引射通道10,第二引射通道10与基座1和第二喷射器9相流体连接。该第三混气室8的燃料混合物直接由第二引射通道10进行供给,并与第一混气室514和第二混气室525流体分离,由此可单独地对其进行供给,本实施例中第二引射通道10设置有两个,分别沿周向地对称设置在第一引射通道3的两侧,同时也达到了使得中心火和外周火出火均匀的目。另外火盖5顶壁于内环部51的环形壁512内围还开设有对应的两个通孔50,通孔50向下凸设有凸壁501,凸壁501围成的腔室即构成第二引射通道10内燃料混合物进入第三混气室8的顶部开口。In order to allow the user to individually control the central fire formed by the inner ring portion 51 of the burner and the outer fire formed by the outer ring portion 52, the first mixing chamber is formed between the annular wall 512 of the inner ring portion 51 and the main cover plate 513. The third mixing chamber 8 fluidly separated from the second mixing chamber 514 and the second mixing chamber 525. At least one second ejector 9 is also contained in the cavity 11 of the base 1, and the base 1 is provided with a space separate from the first At least one second ejection channel 10 of the ejection channel 3 is in fluid connection with the base 1 and the second ejector 9. The fuel mixture of the third mixing chamber 8 is directly supplied from the second injection channel 10 and is fluidly separated from the first mixing chamber 514 and the second mixing chamber 525, so that it can be separately supplied. In the embodiment, two second ejection channels 10 are provided, which are symmetrically arranged on both sides of the first ejection channel 3 in the circumferential direction, respectively, and at the same time, the purpose of making the central fire and the peripheral fire uniform is achieved. In addition, the top wall of the fire cover 5 is also provided with two corresponding through holes 50 inside the annular wall 512 of the inner ring portion 51. The through hole 50 is downwardly provided with a convex wall 501, and a cavity surrounded by the convex wall 501 constitutes The fuel mixture in the second injection channel 10 enters the top opening of the third mixing chamber 8.
为了加强引射能力,本发明可以将第二引射通道10和第三混气室8共同限定在、沿基座1轴向方向延伸、并呈收敛-扩散的管状结构如轴向文丘里管中,该轴向文丘里管部分的开口在火盖5中形成即对应通孔50凸壁501围成的腔室,部分在连接体2中形成即对应第二引射通道10。为避免不易因任一第二喷射器堵塞发生的燃气倒灌,从而引起爆炸的灶具燃烧器,对应两个通孔50的设置,火盖5顶壁上设置有一个径向贯穿凸圈510设置的分隔板20,该分隔板20将第三混气室8分隔成两个独立腔室如第一独立腔室201和第二独立腔室201',第一独立腔室201和第二独立腔室201'均与各自对应的第二引射通道10连通。另外,内环部51向上凸设的环形壁512与主盖板513之间还设置有隔板30,隔板30的顶面开设有多个供经第三混气室8混合后的燃料混合物流 出的出气孔301,隔板30下表面与内环部51上表面具有第一间隙302,隔板30上表面与主盖板513之间具有第二间隙303,第二间隙303构成内环部51的出火口。由于隔板30具有进一步降低燃气速度的作用,因而内环的中心火焰以及由出火口形成的小火更加均匀,从而使锅底加热更为均匀。由于采用这样的结构,在使用时,与分段燃气阀配合,不仅可以使火盖5的内环部51、外环部52同时燃烧,还可以有选择内环部51单独燃烧、内环部51的两环火同时燃烧,不同的火力可以满足不同烹饪不同食物,和烹饪食物的不同阶段进行取舍,使用方便。为了方便安装隔板30,内环部51上表面的中央位置向上凸设有一圈凸圈510,隔板30在对应位置具有能搁置在该凸圈510上的安装孔304,隔板30的外侧边缘与环形壁512相抵,隔板30的上表面沿周向间隔地设置有至少两条用于支承主盖板513的凸棱305,主盖板513则在对应凸圈510的位置向下延伸有能穿过安装孔304、并与凸圈510适配的环形凸壁5130。In order to enhance the ejection capability, the present invention may jointly define the second ejection channel 10 and the third gas mixing chamber 8 in a tubular structure such as an axial venturi that extends along the axial direction of the base 1 and converges and diffuses. In the axial venturi tube portion, the opening formed in the fire cover 5 corresponds to the cavity surrounded by the convex wall 501 of the through hole 50, and the portion is formed in the connecting body 2 corresponding to the second ejection channel 10. In order to avoid a gas burner which is not easily caused by the blockage of any second ejector, which can cause an explosion, the burner of the cooker which causes an explosion, corresponding to the setting of the two through holes 50, a top wall of the fire cover 5 is provided with a radial penetration 510 Divides the partition plate 20, which divides the third mixing chamber 8 into two independent chambers such as a first independent chamber 201 and a second independent chamber 201 ', and the first independent chamber 201 and the second independent chamber The chambers 201 ′ are in communication with the corresponding second ejection channels 10. In addition, a partition 30 is also provided between the annular wall 512 and the main cover plate 513 protruding upward from the inner ring portion 51. A plurality of fuel mixtures for mixing by the third mixing chamber 8 are opened on the top surface of the partition 30. The outflow air outlet 301 has a first gap 302 between the lower surface of the partition plate 30 and the upper surface of the inner ring portion 51, and a second gap 303 between the upper surface of the partition plate 30 and the main cover plate 513. The second gap 303 constitutes the inner ring portion The fire exit of 51. Since the partition plate 30 has the effect of further reducing the gas velocity, the central flame of the inner ring and the small fire formed by the fire outlet are more uniform, so that the bottom of the pot is heated more uniformly. Due to such a structure, in use, in cooperation with a segmented gas valve, not only the inner ring portion 51 and the outer ring portion 52 of the fire cover 5 can be burned at the same time, but also the inner ring portion 51 can be selected to burn alone and the inner ring portion can be selected. The two ring fires of 51 burn at the same time, and different firepower can satisfy different cooking and different foods, and choose between different stages of cooking food, which is convenient to use. In order to facilitate the installation of the partition 30, a ring 510 protrudes upward from the center of the upper surface of the inner ring portion 51. The partition 30 has a mounting hole 304 that can rest on the ring 510 at the corresponding position, and the outside of the partition 30 The edge abuts the annular wall 512. The upper surface of the partition plate 30 is provided with at least two convex ribs 305 for supporting the main cover plate 513 along the circumferential direction. The main cover plate 513 extends downward at a position corresponding to the convex ring 510. There is an annular convex wall 5130 that can pass through the mounting hole 304 and is adapted to the convex ring 510.
参考图6,如上所述,一次空气、燃气和混合后的一次空气和燃气在燃烧器内部的路径(参见虚线箭头)如下,由于第一喷射器12到第一引射通道3和具有径向文丘里效应的第一混气室514中的气体喷射所造成的低压,经过一次空气通道4将一次空气从外界吸入基座1的凹腔11的外周腔室312中(为简明起见,仅示出一个第一引射通道3和传输通道6),然后借由燃气自身的动能将一次空气至中心腔室311中,进行一次空气和燃气的预混,最后在第一混气室514径向文丘里效应腔进一步混合并经过传输通道6进入第二混气室525,混合后的一次空气和燃气最后通过外环部52的第一主火槽5121和第二主火槽5122流出、并与外部环境的二次空气一起被点燃,形成外周火。而火盖5还包括有能使用户能单独控制的中心火,中心火所需的一次空气和燃气由第二引射通道10独立于第一引射通道3而输入至第三混气室8中,同时,第三混气室8与第一混气室514和第二混气室525分离,以此方式实现第二混气室525和第三混气室8的流体分离,然后可以单独地对其进行供给,以允许用户单独控制进入第一引射通道3和第二引射通道10中燃料混合物的流入,若要调节外周火和中心火的大小,调节连接在输入通道进气端的调节阀即可。Referring to FIG. 6, as described above, the path of the primary air, gas, and mixed primary air and gas inside the burner (see the dotted arrow) is as follows, since the first injector 12 to the first ejection channel 3 and the radial direction The low pressure caused by the gas injection in the first mixing chamber 514 of the Venturi effect, draws the primary air from the outside into the peripheral chamber 312 of the recess 11 of the base 1 through the primary air passage 4 (for simplicity, only shown A first ejection channel 3 and a transmission channel 6), and then the primary air is fed into the central chamber 311 by the kinetic energy of the gas itself, and the air and the gas are premixed, and finally the radial direction of the first mixing chamber 514 is radial The venturi effect cavity is further mixed and enters the second mixing chamber 525 through the transmission channel 6. The mixed primary air and gas finally flow out through the first main fire groove 5121 and the second main fire groove 5122 of the outer ring portion 52, and flow with The secondary air of the external environment is ignited together to form a peripheral fire. The fire cover 5 also includes a central fire that enables the user to control it individually. The primary air and gas required for the central fire are input to the third mixing chamber 8 by the second injection channel 10 independently of the first injection channel 3. At the same time, the third mixing chamber 8 is separated from the first mixing chamber 514 and the second mixing chamber 525. In this way, the fluid separation of the second mixing chamber 525 and the third mixing chamber 8 is achieved, and then they can be separated separately. It is supplied to the ground to allow the user to control the inflow of the fuel mixture into the first injection channel 3 and the second injection channel 10 separately. To adjust the size of the peripheral fire and the central fire, adjust the Just adjust the valve.

Claims (19)

  1. 一种灶具燃烧器,包括有:A stove burner includes:
    基座(1),具有开口朝上的凹腔(11),该凹腔(11)的中央位置设置有第一喷射器(12);The base (1) has a concave cavity (11) with an upward opening, and a first ejector (12) is arranged at the center of the concave cavity (11);
    连接体(2),设置在所述基座(1)之上,包括有板体(21),所述板体(21)的中央位置具有竖向的第一引射通道(3),所述板体(21)的外周沿(211)则在水平方向上延伸并能覆盖住所述凹腔(11);The connecting body (2) is arranged on the base (1) and includes a plate body (21). The plate body (21) has a vertical first ejection channel (3) in the center position. The outer periphery (211) of the plate body (21) extends in the horizontal direction and can cover the cavity (11);
    一次空气通道(4),沿所述连接体(2)周向地、间隔设置,用于连通所述凹腔(11)与外界以将一次空气从外界引入基座(1)的凹腔(11)内;A primary air channel (4) is arranged circumferentially and spaced along the connecting body (2), and is used to communicate the cavity (11) with the outside to introduce primary air from the outside into the cavity (1) of the base (1) ( 11) Within;
    火盖(5),设置在所述连接体(2)之上,并且与所述连接体(2)之间形成有位于中央的第一混气室(514)和位于外围的第二混气室(525);所述第一混气室(514)对应于所述第一引射通道(3),用于混合一次空气和燃气;以及A fire cover (5) is disposed above the connecting body (2), and a first air mixing chamber (514) in the center and a second air mixing gas in the periphery are formed between the fire cover (5) and the connecting body (2). Chamber (525); the first gas mixing chamber (514) corresponds to the first ejection channel (3) for mixing air and gas once; and
    传输通道(6),用于将混合后的一次空气和燃气从所述第一混气室(514)传输至到第二混气室(525);A transmission channel (6) for transmitting the mixed primary air and gas from the first mixing chamber (514) to the second mixing chamber (525);
    其特征在于It is characterized by
    所述第一引射通道(3)为夹层结构,包括有位于中心的中心腔室(311)和围绕中心腔室(311)的外周腔室(312);所述中心腔室(311)的下端入口与所述的基座凹腔(11)相连通且与所述第一喷射器(12)相对,所述中心腔室(311)的上端出口与所述的第一混气室(514)相连通;所述外周腔室(312)的下端开口与所述的基座凹腔(11)相连通,所述外周腔室(312)的上端封闭为盲端。The first ejection channel (3) is a sandwich structure, and includes a central chamber (311) located at the center and a peripheral chamber (312) surrounding the central chamber (311); The lower end inlet is in communication with the base cavity (11) and is opposite to the first ejector (12). The upper end outlet of the central chamber (311) and the first gas mixing chamber (514) ) Are connected; the lower end opening of the peripheral cavity (312) is in communication with the base cavity (11), and the upper end of the peripheral cavity (312) is closed as a blind end.
  2. 根据权利要求1所述的灶具燃烧器,其特征在于:所述第一引射通道(3)呈上下均敞口的筒体结构,所述筒体包括有自内向外间隔设置的内周壁(31)和外周壁(32),所述内周壁(31)将筒体分隔成所述的中心腔室(311)和外周腔室(312),并且,所述内周壁(31)上端缘与外周壁(32)上端缘相接连而形成封闭端面(33)。The cooker burner according to claim 1, characterized in that the first ejection channel (3) has a cylindrical structure which is open at the top and bottom, and the cylinder includes an inner peripheral wall spaced from the inside to the outside ( 31) and an outer peripheral wall (32), the inner peripheral wall (31) divides the cylinder into the central cavity (311) and the outer peripheral cavity (312), and the upper end edge of the inner peripheral wall (31) and Upper end edges of the outer peripheral wall (32) are connected one after another to form a closed end surface (33).
  3. 根据权利要求1或2或3所述的灶具燃烧器,其特征在于:所述外周腔室(312)的外周壁(32)下端缘低于所述中心腔室(311)的周壁下端缘。The cooker burner according to claim 1 or 2 or 3, characterized in that the lower end edge of the outer peripheral wall (32) of the outer peripheral chamber (312) is lower than the lower end edge of the peripheral wall of the central chamber (311).
  4. 根据权利要求2所述的灶具燃烧器,其特征在于:所述火盖(5)内部具有自下往上凹、并供所述第一引射通道(3)伸入的凹槽(511),该凹槽(511)与所述板体(21)围设构成所述第一混气室(514),所述凹槽(511)顶壁下表面与第一引射通道(3)的封闭端面(33)之间围成径向文丘里腔(6)。The cooker burner according to claim 2, characterized in that the inside of the fire cover (5) has a recess (511) recessed from the bottom to the top and for the first ejection channel (3) to extend into. The groove (511) and the plate body (21) surround the first mixing chamber (514), and the lower surface of the top wall of the groove (511) and the first ejection channel (3) A radial venturi cavity (6) is enclosed between the closed end faces (33).
  5. 根据权利要求4所述的灶具燃烧器,其特征在于:所述第一引射通道(3)的封闭端面(33)包括有水平设置的第一端面(331)以及沿第一端面(331)下边沿自内向外逐渐向下倾斜的第二端面(332),所述第一端面(331)与所述凹槽(511)顶壁下表面的竖直距离D1、所述第二端面(332)上边沿与所述凹槽(511)顶壁下表面的竖直距离D2以及所述第二端面(332)下边沿与所述凹槽(511)顶壁下表面的竖直距离D3满足有如下关系:D1<D2< D3,从而构成所述的径向文丘里腔(60)。The cooker burner according to claim 4, characterized in that the closed end surface (33) of the first ejection channel (3) comprises a first end surface (331) disposed horizontally and along the first end surface (331) A second end surface (332) whose lower edge gradually slopes downward from the inside to the outside, a vertical distance D1 between the first end surface (331) and the lower surface of the top wall of the groove (511), and the second end surface (332 ) The vertical distance D2 between the upper edge and the lower surface of the top wall of the groove (511) and the vertical distance D3 between the lower edge of the second end surface (332) and the lower surface of the top wall of the groove (511) satisfy The relationship is as follows: D1 <D2 <D3, thereby forming the radial venturi cavity (60).
  6. 根据权利要求5所述的灶具燃烧器,其特征在于:所述第一端面(331)与所述第二端面(332)之间的夹角α为5°~15°。The cooker burner according to claim 5, wherein an included angle α between the first end surface (331) and the second end surface (332) is 5 ° to 15 °.
  7. 根据权利要求4所述的灶具燃烧器,其特征在于:所述火盖(5)包括有同心间隔设置的内环部(51)和外环部(52),所述凹槽(511)则设置在内环部(51)的内部,所述内环部(51)的顶端高出所述外环部(52)的顶端,所述内环部(51)包括有向上凸设的环形壁(512)以及覆盖在所述环形壁(512)上方的主盖板(513),所述环形壁(512)沿着圆周方向间隔地成型有径向的主火槽(5121)和稳焰槽(5122),并与主盖板(513)的外周壁(32)配合分别形成主火孔和稳焰孔。The cooker burner according to claim 4, characterized in that the fire cover (5) includes an inner ring portion (51) and an outer ring portion (52) which are arranged at a concentric interval, and the groove (511) is It is arranged inside the inner ring part (51), the top end of the inner ring part (51) is higher than the top end of the outer ring part (52), and the inner ring part (51) includes an annular wall protruding upward. (512) and a main cover plate (513) covering the annular wall (512), the annular wall (512) is formed with a radial main fire groove (5121) and a flame holding groove at intervals in the circumferential direction. (5122), and cooperate with the outer peripheral wall (32) of the main cover plate (513) to form a main fire hole and a flame stabilization hole, respectively.
  8. 根据权利要求7所述的灶具燃烧器,其特征在于:所述外环部(52)包括有同心间隔设置的内圈壁面(521)和外圈壁面(522)以及连接内圈壁面(521)和外圈壁面(522)的底壁(523),所述内圈壁面(521)和外圈壁面(522)上方覆盖有副盖板(524),所述内圈壁面(521)、外圈壁面(522)、底壁(523)以及副盖板(524)共同围设成所述第二混气室(525)。The cooker burner according to claim 7, characterized in that the outer ring portion (52) comprises an inner ring wall surface (521) and an outer ring wall surface (522) and the inner ring wall surface (521) are arranged at concentric intervals. And the bottom wall (523) of the outer ring wall surface (522), the inner ring wall surface (521) and the outer ring wall surface (522) are covered with a sub cover plate (524), the inner ring wall surface (521), the outer ring The wall surface (522), the bottom wall (523), and the sub cover plate (524) are collectively surrounded to form the second gas mixing chamber (525).
  9. 根据权利要求8所述的灶具燃烧器,其特征在于:所述外圈壁面(522)的上表面沿着圆周方向间隔地成型有径向的第一主火槽(5221)和第二主火槽(5222),第一主火槽(5221)的开槽深度大于第二主火槽(5222)的开槽深度。The cooker burner according to claim 8, characterized in that: the first main fire groove (5221) and the second main fire are formed radially on the upper surface of the outer ring wall surface (522) at intervals along the circumferential direction. The groove (5222) and the depth of the first main fire groove (5221) are greater than the depth of the second main fire groove (5222).
  10. 根据权利要求8所述的灶具燃烧器,其特征在于:所述主火孔和稳焰孔的外围沿周向间隔地分布有对应的二次空气孔(7),所述二次空气孔(7)开设在所述内圈壁面(521)和所述环形壁(512)之间的连接部上,并且每个二次空气孔(7)均与所述火盖(5)下方的空气连通。The cooker burner according to claim 8, characterized in that the periphery of the main fire hole and the flame stabilizing hole is circumferentially spaced with corresponding secondary air holes (7), the secondary air holes ( 7) It is opened on the connection between the inner ring wall surface (521) and the annular wall (512), and each secondary air hole (7) is in communication with the air under the fire cover (5) .
  11. 根据权利要求10所述的灶具燃烧器,其特征在于:所述二次空气孔(7)向下凸设有环形周壁(71),所述环形周壁(71)围成有环形腔室,所述连接体(2)沿周向地设有多个径向、用于连通所述环形腔室与外界的二次空气通道(40),所述一次空气通道(4)同样设置有多个,并沿着所述连接体(2)周向地径向设置,所述二次空气通道(40)与所述一次空气通道(4)间隔设置。The cooker burner according to claim 10, wherein the secondary air hole (7) is downwardly provided with an annular peripheral wall (71), and the annular peripheral wall (71) surrounds an annular cavity, so The connecting body (2) is provided along the circumferential direction with a plurality of radial secondary air passages (40) for connecting the annular chamber and the outside, and the primary air passage (4) is also provided with a plurality of, And arranged along the connecting body (2) circumferentially and radially, the secondary air passage (40) and the primary air passage (4) are spaced apart from each other.
  12. 根据权利要求11所述的灶具燃烧器,其特征在于:所述连接体(2)的板体(21)下表面向下延伸有沿所述板体(21)周向地、径向设置的至少一对挡板(212),在每对所述挡板(212)搁置在所述基座(1)上的状态下,每对所述挡板(212)与基座(1)之间的间隙则构成的所述一次空气通道(4)的入气口。The cooker burner according to claim 11, characterized in that: the lower surface of the plate body (21) of the connecting body (2) extends downwardly and radially along the plate body (21) circumferentially. At least one pair of baffles (212), in a state where each pair of the baffles (212) is resting on the base (1), between each pair of the baffles (212) and the base (1) The gap is the air inlet of the primary air channel (4).
  13. 根据权利要求12所述的灶具燃烧器,其特征在于:所述外环部(52)的内圈壁面(521)开设有缺口(5211),该缺口(5211)与所述相邻环形腔室的环形周壁(71)之间围成的腔体相通连,所述缺口(5211)和所述腔体共同构成所述传输通道(6)。The cooker burner according to claim 12, characterized in that: an inner ring wall surface (521) of the outer ring portion (52) is provided with a notch (5211), the notch (5211) and the adjacent annular chamber A cavity formed between the annular peripheral walls (71) is connected, and the notch (5211) and the cavity together form the transmission channel (6).
  14. 根据权利要求7~13任意一项权利要求所述的灶具燃烧器,其特征在于:所述内环部(51)的环形壁(512)以及覆主盖板(513)之间形成与所述第一混气室(514)和第二混 气室(525)相流体分离的第三混气室(8),所述基座(1)的凹腔(11)内还容纳有至少一个第二喷射器(9),并且所述基座(1)上设置有与独立于所述第一引射通道(3)的至少一个第二引射通道(10),所述第二引射通道(10)与所述基座(1)和第二喷射器(9)相流体连通。The cooker burner according to any one of claims 7 to 13, wherein an annular wall (512) of the inner ring portion (51) and a main cover plate (513) are formed between the annular wall (512) and the main cover plate (513). The first gas mixing chamber (514) and the second gas mixing chamber (525) are separated from each other by a third fluid mixing chamber (8), and the recess (11) of the base (1) further contains at least one first gas mixing chamber. Two ejectors (9), and the base (1) is provided with at least one second ejection channel (10) independent of the first ejection channel (3), the second ejection channel (10) In fluid communication with the base (1) and the second ejector (9).
  15. 根据权利要求14所述的灶具燃烧器,其特征在于:所述火盖(5)顶壁于内环部(51)的环形壁(512)内围开设有至少一个通孔(50),所述通孔(50)向下凸设有凸壁(501),所述凸壁(501)围成的腔室即构成所述第二引射通道(10)内燃料混合物进入所述第三混气室(8)的顶部开口。The cooker burner according to claim 14, characterized in that at least one through hole (50) is provided around the top wall of the fire cover (5) in the annular wall (512) of the inner ring portion (51). The through hole (50) is convexly provided with a convex wall (501) downward, and a cavity surrounded by the convex wall (501) constitutes the second injection channel (10), and the fuel mixture enters the third mixture. The top of the air chamber (8) is open.
  16. 根据权利要求15所述的灶具燃烧器,其特征在于:所述第二引射通道(10)为轴向文丘里管。The cooker burner according to claim 15, wherein the second ejection channel (10) is an axial venturi tube.
  17. 根据权利要求15或16所述的灶具燃烧器,其特征在于:所述火盖(5)顶壁上设置有至少一个分隔板(20),该分隔板(20)将所述第三混气室(8)分隔成至少两个独立腔室(201,201'),每个独立腔室均与各自对应的所述第二引射通道(10)连通。The cooker burner according to claim 15 or 16, characterized in that at least one partition plate (20) is provided on the top wall of the fire cover (5), and the partition plate (20) connects the third The gas mixing chamber (8) is partitioned into at least two independent chambers (201, 201 '), and each independent chamber is in communication with the corresponding second injection channel (10).
  18. 根据权利要求14或15或16所述的灶具燃烧器,其特征在于:所述内环部(51)向上凸设的环形壁(512)与主盖板(513)之间还设置有隔板(30),所述隔板(30)的顶面开设有至少一个供经所述第三混气室(8)混合后的燃料混合物流出的出气孔(301),所述隔板(30)下表面与内环部(51)上表面具有第一间隙(302),所述隔板(30)上表面与所述主盖板(513)之间具有第二间隙(303),所述第二间隙(303)构成内环部(51)的出火口。The cooker burner according to claim 14 or 15 or 16, wherein a partition plate is further provided between the annular wall (512) protruding upward from the inner ring portion (51) and the main cover plate (513). (30) The top surface of the partition plate (30) is provided with at least one air outlet (301) for the fuel mixture mixed by the third mixing chamber (8) to flow out, and the partition plate (30) There is a first gap (302) between the lower surface and the upper surface of the inner ring portion (51), and there is a second gap (303) between the upper surface of the partition (30) and the main cover plate (513). The two gaps (303) constitute a fire outlet of the inner ring portion (51).
  19. 根据权利要求18所述的灶具燃烧器,其特征在于:所述内环部(51)上表面的中央位置向上凸设有一圈凸圈(510),所述隔板(30)在对应位置具有能搁置在该凸圈(510)上的安装孔(304),所述隔板(30)的外侧边缘与所述环形壁(512)相抵,所述隔板(30)的上表面沿周向间隔地设置有至少两条用于支承所述主盖板(513)的凸棱(305),所述主盖板(513)则在对应凸圈(510)的位置向下延伸有能穿过所述安装孔(304)、并与所述凸圈(510)适配的环形凸壁(5130)。The cooker burner according to claim 18, characterized in that: a center of the upper surface of the inner ring portion (51) is provided with a convex ring (510) protruding upward, and the partition plate (30) has a corresponding position The mounting hole (304) can be placed on the convex ring (510), the outer edge of the partition plate (30) abuts the annular wall (512), and the upper surface of the partition plate (30) is along the circumferential direction At least two convex ribs (305) for supporting the main cover plate (513) are arranged at intervals, and the main cover plate (513) extends downward at a position corresponding to the convex ring (510) and can pass through. An annular convex wall (5130) of the mounting hole (304) and adapted to the convex ring (510).
PCT/CN2019/077984 2018-05-23 2019-03-13 Upper air inlet cooker burner WO2019223402A1 (en)

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CN201810503164.4 2018-05-23
CN201810503164.4A CN110529850A (en) 2018-05-23 2018-05-23 A kind of upper inlet wind type burner

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CA3101040A CA3101040A1 (en) 2018-05-23 2019-03-13 Cooker burner
AU2019272131A AU2019272131B2 (en) 2018-05-23 2019-03-13 Cooker burner
US17/057,042 US20210207798A1 (en) 2018-05-23 2019-03-13 Cooker Burner

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CN111878809B (en) * 2020-07-06 2022-04-15 武汉理工大学 Household gas stove based on TVC standing vortex structure

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CN200968608Y (en) * 2006-06-22 2007-10-31 夏爱明 Complete upper air intake combusting device
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AU2019272131B2 (en) 2022-05-12
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US20210207798A1 (en) 2021-07-08
AU2019272131A1 (en) 2021-01-28

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