WO2016145746A1 - 燃烧器及燃气用具 - Google Patents

燃烧器及燃气用具 Download PDF

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Publication number
WO2016145746A1
WO2016145746A1 PCT/CN2015/082055 CN2015082055W WO2016145746A1 WO 2016145746 A1 WO2016145746 A1 WO 2016145746A1 CN 2015082055 W CN2015082055 W CN 2015082055W WO 2016145746 A1 WO2016145746 A1 WO 2016145746A1
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WO
WIPO (PCT)
Prior art keywords
mixing chamber
outer ring
wall
inner ring
flamethrower
Prior art date
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PCT/CN2015/082055
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English (en)
French (fr)
Inventor
王成
王光武
朱世平
施国生
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201510111549.2A external-priority patent/CN104713085B/zh
Priority claimed from CN201520144880.XU external-priority patent/CN204534581U/zh
Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Publication of WO2016145746A1 publication Critical patent/WO2016145746A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means

Definitions

  • the present invention relates to the field of home appliances, and more particularly to a burner and a gas appliance including the burner.
  • the existing burner is provided with a plurality of flame rings, and the mixing chambers corresponding to the plurality of flame rings communicate with each other, and the gas-air mixed gas can circulate between the mixing chambers.
  • the existing burners need to provide a plurality of venturi tubes to supply the mixed gas to the mixing chambers corresponding to the plurality of flame rings, and the manufacturing process of the venturi tubes is complicated, resulting in an increase in the cost of the burners.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is required to provide a burner and a gas appliance.
  • a burner comprising:
  • the bottom cup including an intake passage and a single nozzle connected to the intake passage and disposed upward;
  • An annular flamethrower disposed on the bottom cup, the flamethrower including a single venturi disposed opposite the single nozzle, a gap formed between the flamethrower and the bottom cup to allow primary air to enter the venturi from the gap
  • the inner tube is mixed with the gas injected from the nozzle into the venturi to form a mixed gas
  • the flamethrower is formed with an inner ring mixing chamber, an outer ring mixing chamber and an intermediate passage, the outer ring mixing chamber is disposed around the inner ring mixing chamber, the intermediate passage is connected to the inner ring mixing chamber and the outer ring mixing chamber, the inner ring a mixing chamber connecting the venturi; and
  • a fire cover disposed on the flamethrower, the fire cover covering the inner ring mixing chamber, the outer ring mixing chamber, and the intermediate passage.
  • the burner uses a single nozzle and a single venturi.
  • the gas-air mixture can be led to the outer ring mixing chamber through the intermediate passage through the intermediate passage. Therefore, the burner reduces the number of venturi chambers in the manufacturing process. The cost.
  • the bottom cup includes an intake pipe, the intake pipe is provided with the intake passage, and the intake pipe includes an intake end and an outlet end, the intake passage penetrating the intake end and the outlet end, the inlet The radius of the gas pipe is reduced from the inlet end to the outlet end, and the nozzle is connected to the outlet end.
  • the flamethrower includes an inner ring flame igniter, an outer ring flame igniter and a connecting portion, the outer ring flame blaster surrounds the inner ring flame blaster, the connecting portion connects the inner ring flame igniter and the outer ring flame igniter ;
  • the outer ring flame blaster is provided with the outer ring mixing chamber
  • the inner ring flame blaster is provided with the inner ring mixing chamber
  • the connecting portion opens the intermediate passage.
  • the bottom cup includes a body, the body includes a top portion, a bottom portion, and a first positioning member, the air inlet tube is coupled to the bottom portion, and the first positioning member is disposed on the top portion;
  • the inner ring fire blaster includes a lower end and an upper end, the upper end is provided with the inner ring mixing chamber, and the lower end is provided with a second positioning member coupledly coupled with the first positioning member.
  • the first positioning member is a plurality of flanges spaced apart from the top portion
  • the second positioning member is a card slot spaced apart at the lower end, the gap being formed between the adjacent two flanges And/or formed between two adjacent card positions.
  • the outer ring flamethrower includes an annular outer wall enclosing the outer ring mixing chamber, an annular inner wall, and an arcuate inner wall connecting the annular inner wall and the connecting portion, the annular outer wall and the annular inner wall And the arc-shaped inner wall is oppositely disposed, and the outer ring mixing cavity surrounded by the annular outer wall and the annular inner wall is gradually narrowed away from the connecting portion.
  • the center of the circle formed by the annular inner wall is offset from the center of the circle formed by the venturi.
  • the outer ring flamethrower includes a partition that divides the outer ring mixing chamber into two separate sub-cavities.
  • the outer ring mixing chamber is a unitary mixing chamber.
  • a gas appliance comprising a burner as described above.
  • FIG. 1 is a schematic perspective view of a burner of a preferred embodiment.
  • Figure 2 is a schematic cross-sectional view of the burner of Figure 1.
  • FIG. 3 is a perspective view of a flamethrower of the burner of FIG. 1.
  • Figure 4 is a plan view of the flamethrower of Figure 3.
  • Figure 5 is a perspective view of another preferred embodiment of the flamethrower.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • Connected, or integrally connected may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature “above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly above and above the second feature, or merely the first feature level being less than the second feature.
  • the burner 100 of the first preferred embodiment of the present invention includes a bottom cup 102, a flamethrower 104, and a fire cover 106.
  • the bottom cup 102 includes a body 108, an intake pipe 110, and a single nozzle 112.
  • the body 108 is generally cylindrical in shape and is provided with a primary air replenishing chamber 114.
  • the body 108 includes a top portion 116 and a bottom portion 118.
  • the intake pipe 110 is coupled to the bottom portion 118.
  • the intake pipe 110 includes an intake end 120 and an outlet end 122.
  • the outlet end 122 is located in the primary air replenishing chamber 114, and the intake end 120 is located outside the primary air replenishing chamber 114.
  • the intake pipe 110 defines an intake passage 124.
  • the intake passage 124 extends through the intake end 120 and the outlet end 122.
  • the radius of the intake pipe 110 is reduced from the intake end 120 toward the outlet end 122, thus facilitating the injection of gas into the primary air replenishing chamber 114.
  • the intake passage 124 includes three intake sections, and the first intake section 126, the second intake section 128, and the third intake section 130 are respectively along the intake end 120 to the outlet end 122.
  • the diameter of the first intake section 126 is larger than the diameter of the second intake section 128, and the diameter of the second intake section 128 is larger than the diameter of the third intake section 130.
  • the single nozzle 112 is connected upwardly at the air outlet end 122 and communicates with the intake passage 124. Therefore, the horizontally flowing gas is vertically injected through the nozzle 112, so that the gas can be supplied upward to the flamethrower 104.
  • the flamethrower 104 is disposed on the top 116 of the body 108 of the bottom cup 102.
  • the flamethrower 104 is an annular flamethrower, such as a ring-shaped flamethrower.
  • the flamethrower 104 includes an inner ring flamethrower 132, an outer ring flamethrower 134, a joint 136, and a single venturi 138.
  • the outer ring flame igniter 134 surrounds the inner ring flame damper 132, and the connecting portion 136 connects the inner ring squirt 132 and the outer ring squirt 134.
  • the venturi tube 138 is coupled to the inner ring flamethrower 132.
  • the venturi 138 is vertically disposed on the inner ring flamer 132 and opposed to the nozzle 112.
  • the gas injected from the nozzle 112 can directly enter the venturi 138, improving the intake efficiency.
  • the inner ring flame blaster 132 has a hollow column shape, and includes a lower end 140 and an upper end 142.
  • the upper end 142 is provided with an inner ring mixing chamber 144.
  • the upper end 142 is formed to be convex with respect to the venturi 138.
  • An inner annular wall 146 is formed that encloses the inner ring mixing chamber 144.
  • the inner ring flamethrower 132 is The venturi tube 138 is arranged concentrically.
  • the inner ring annular wall 146 is provided with an inner ring fire groove 148, and the inner ring fire groove 148 is in communication with the inner ring mixing chamber 144, so that the mixed gas of gas and air located in the inner ring mixing chamber 144 can pass through the inner ring mixing chamber 144.
  • the ring fire groove 148 is sprayed outward and burns to form an inner ring fire.
  • the connecting portion 136 is provided with an intermediate passage 150.
  • the number of the connecting portions 136 is two, and the two connecting portions 136 are evenly distributed in the radial direction of the inner ring flamethrower 132.
  • the intermediate passage 150 communicates with the inner ring mixing chamber 144. The mixed gas located within the inner ring mixing chamber 144 can enter the intermediate passage 150.
  • the outer ring flamethrower 134 is connected to the inner ring flamethrower 132 via a connecting portion 136.
  • the outer ring flamethrower 134 includes an annular outer wall 152, an annular inner wall 154, and a curved inner wall 156.
  • An annular outer wall 152 is located on the outer periphery of the outer ring flamethrower 134.
  • the annular inner wall 154 is located at the inner periphery of the outer ring flamethrower 134.
  • the annular outer wall 152 is disposed opposite the annular inner wall 154 and the curved inner wall 156.
  • the curved inner wall 156 connects the connecting portion 136 and the annular inner wall 154.
  • the annular outer wall 152, the annular inner wall 154 and the curved inner wall 156 collectively enclose an outer ring mixing chamber 158.
  • the mixed gas located within the inner ring mixing chamber 144 can enter the outer ring mixing chamber 158 via the intermediate passage 150.
  • the annular outer wall 152 is provided with an outer ring fire groove 160, and the outer ring fire groove 160 is in communication with the outer ring mixing chamber 158.
  • the mixed gas located in the outer ring mixing chamber 158 can be injected outward through the outer ring fire chamber 160 to form an outer ring fire.
  • the annular inner wall 154 is provided with a middle ring fire groove 162, and the middle ring fire groove 162 is in communication with the outer ring mixing chamber 158.
  • the mixed gas located in the outer ring mixing chamber 158 can be injected outward through the central ring fire 162 to form a central fire.
  • the flamethrower 104 of the present embodiment can provide a three-ring fire, and realizes the multi-ring high-efficiency burner 100 of the outer ring fire, the middle ring fire, and the inner ring fire. It can be understood that if the burner 100 only needs two rings of fire, it can be flexibly set, for example, the middle ring fire groove 162 is not disposed on the annular inner wall 154.
  • the outer ring mixing chamber 158 surrounded by the annular outer wall 152 and the annular inner wall 154 is gradually narrowed away from the connecting portion 136.
  • the passage of the gas in the propagation process of the outer ring mixing chamber 158 is gradually narrowed, and the combustion sufficiency is ensured while reducing the mutual interference between the inner ring fire formed by the inner ring annular wall 146 and the middle ring fire formed by the annular inner wall 154.
  • the life of the burner 100 is increased.
  • the center of the circle formed by the annular outer wall 152 coincides with the center of the circle formed by the venturi tube 138, and the center of the circle formed by the annular inner wall 154 is offset from the center of the circle formed by the venturi tube 138.
  • the annular inner wall 154 includes a first semi-annular inner wall 164 and a second semi-annular inner wall 166.
  • the first semi-annular inner wall 164 is formed by a circle center O1 of a circle formed by a venturi tube.
  • the center P is offset upward, and the center O2 of the circle formed by the second inner annular wall 166 is offset downward from the center P of the circle formed by the venturi.
  • the outer ring mixing chamber 158 surrounded by the first semi-annular inner wall 164 and the annular outer wall 152 is gradually narrowed away from the connecting portion 136, and the second semi-annular inner wall 166 is mixed with the outer ring surrounded by the annular outer wall 152.
  • the cavity 158 tapers in a direction away from the connecting portion 136.
  • the body 108 includes a first positioning member 168.
  • the first positioning member 168 is disposed on the top portion 116.
  • the lower end 140 of the inner ring flamer 132 is provided with a second positioning member 170, and the second positioning member 170 is coupled with the first positioning member 168 to position the flamethrower 104 on the bottom cup 102.
  • the first positioning member 168 is a plurality of flanges spaced apart from the top portion 116.
  • the second positioning member 170 is a card slot that is spaced apart from the lower end 140. The flange cooperates with the corresponding latch to position the flamethrower 104 on the bottom cup 102.
  • a gap (not shown) is formed between the flamethrower 104 and the bottom cup 102.
  • the gap communicates with the primary air replenishing chamber 114 to allow primary air to pass from the gap into the primary air replenishing chamber 114 and the venturi 138 such that primary air can be injected with the gas from the nozzle 112 into the venturi 138. Mix to form a mixed gas.
  • a gap may be formed between adjacent two flanges and formed between adjacent two card positions.
  • the gap may be formed between adjacent two flanges or between adjacent two card slots.
  • the outer ring flamethrower 134 further includes a partition 172 that divides the outer ring mixing chamber 158 into two separate sub-cavities.
  • the number of the partitions 172 is two, and each of the partitions 172 is two partition walls extending in the radial direction of the flamethrower 104, and the partition walls 174 are formed between the two partition walls.
  • the configuration of the partition portion 172 is not limited to the present embodiment, and in other embodiments, the partition structure 172 can be set as needed.
  • a fire cover 106 is disposed on the flamethrower 104.
  • the fire cover 106 covers the inner ring mixing chamber 144, the outer ring mixing chamber 158 and the intermediate passage 150, so that the mixed gas in the inner ring mixing chamber 144 can be injected outward through the inner ring fire groove 148, and the outer ring mixing chamber 158 The mixed gas inside can be injected outward through the outer ring fire pit 160 and the middle ring fire groove 162.
  • the fire cover 106 includes an inner ring fire cover 176, a fire cover connection portion 178, and an outer ring fire cover 180.
  • the outer ring fire cover 180 surrounds the inner ring fire cover 176, and the fire cover connection portion 178 connects the outer ring fire. Cover 180 and inner ring fire cover 176.
  • the outer ring fire cover 180 covers the outer ring mixing chamber 158
  • the inner ring fire cover 176 covers the inner ring mixing chamber 144
  • the fire cover connection portion 178 covers the intermediate passage 150.
  • the gas enters the combustor 100 through the intake passage 124, and is injected into the primary air replenishing chamber 114 through the nozzle 112.
  • the primary air enters the primary air replenishing chamber 114 through the gap, and enters the venturi 138 together with the gas for premixing.
  • the mixed gas enters the inner ring mixing chamber 144 from the venturi 138, and a portion of the mixed gas is injected outward through the inner ring fire groove 148 to form an inner ring fire.
  • Another portion of the mixed gas diffuses through the intermediate passage 150 to the outer ring mixing chamber 158, and the mixed gas reaching the outer ring mixing chamber 158 is injected outward through the outer ring fire chamber 160, and is burned to form an outer ring fire, and is passed through the central ring fire groove 162. Spraying and burning to form a central fire.
  • the burner 100 uses a single nozzle 112 and a single venturi 138.
  • the mixed gas of gas and air can be led to the outer ring mixing chamber 158 through the intermediate passage 150 through the inner ring mixing chamber 144. Therefore, the burner 100 described above Reduces the cost of setting up multiple venturi chambers during manufacturing.
  • a flamethrower 200 according to a second preferred embodiment of the present invention is provided.
  • the flamethrower 200 of the present embodiment is basically the same as the flamethrower 104 of the above embodiment, except that the flamethrower 200 of the present embodiment omits the partition portion, that is, the outer ring mixing chamber 202 of the flamethrower 200 is integrally connected. Mixing chambers.
  • the flow of gas in the outer ring mixing chamber 202 becomes smooth, and when the gas is taken out from the venturi tube 204, the flamethrower 200 can adjust the uniformity of the gas flow in the left and right areas of the outer ring combustion zone.
  • a gas appliance provided by a third preferred embodiment of the present invention includes a burner.
  • the burner may be the burner 100 of the above embodiment, and the burner may include the flamethrower of any of the above embodiments.
  • the gas appliance can be a gas appliance such as a gas cooker or a large oven.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

一种燃烧器（100）及其燃气用具，其中燃烧器（100）包括底杯（102）和设置在底杯（102）上的环状喷火器（104）。底杯（102）包括进气通道（124）及与进气通道（124）连通且向上设置的单个喷嘴（112）。喷火器（104）包括与单个喷嘴（112）相对设置的单个文丘里管（138），喷火器（104）与底杯（102）之间形成有间隙从而允许一次空气从间隙进入文丘里管（138）与从单个喷嘴（112）喷入文丘里管（138）的燃气混合形成混合气体。喷火器（104）形成有内环混合腔（144）、外环混合腔（158）及中间通道（150）。中间通道（150）连通内环混合腔（144）及外环混合腔（158）。内环混合腔（144）连接文丘里管（138）。火盖（106）覆盖在内环混合腔（144）、外环混合腔（158）及中间通道（150）上。

Description

燃烧器及燃气用具 技术领域
本发明涉及家电领域，更具体而言，涉及一种燃烧器及一种包括该燃烧器的燃气用具。
背景技术
现有的燃烧器设置有多个火焰环，多个火焰环对应的混合腔室之间相互连通，燃气-空气混合气体可以在混合腔室之间相互流通。但是，现有的燃烧器需设置多个文丘里管分别给多个火焰环对应的混合腔室供给混合气体，而文丘里管的制造工艺复杂，导致燃烧器的成本增加。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明需要提供一种燃烧器及一种燃气用具。
一种燃烧器，包括：
底杯，该底杯包括进气通道及与该进气通道连通且向上设置的单个喷嘴；
设置在该底杯上的环状喷火器，该喷火器包括与该单个喷嘴相对设置的单个文丘里管，该喷火器与该底杯之间形成有间隙从而允许一次空气从该间隙进入该文丘里管与从该喷嘴喷入该文丘里管的燃气混合形成混合气体；
该喷火器形成有内环混合腔、外环混合腔及中间通道，该外环混合腔围绕该内环混合腔设置，该中间通道连通该内环混合腔及该外环混合腔，该内环混合腔连接该文丘里管；及
设置在该喷火器上的火盖，该火盖覆盖该内环混合腔、该外环混合腔及该中间通道。
上述燃烧器使用单喷嘴及单个文丘里管，燃气与空气的混合气体可由内环混合腔通过中间通道引向外环混合腔，因此，上述燃烧器减少了制造过程中设置多个文丘里室所带来的成本。
在一个实施方式中，该底杯包括进气管，该进气管开设有该进气通道，该进气管包括进气端及出气端，该进气通道贯穿该进气端及该出气端，该进气管的半径由该进气端向该出气端的方向减少，该喷嘴连接在该出气端。
在一个实施方式中，该喷火器包括内环喷火器、外环喷火器及连接部，该外环喷火器围绕该内环喷火器，该连接部连接该内环喷火器及该外环喷火器；
该外环喷火器开设有该外环混合腔；
该内环喷火器开设有该内环混合腔；
该连接部开设有该中间通道。
在一个实施方式中，底杯包括主体，该主体包括顶部、底部及第一定位件，该进气管连接在该底部，该第一定位件设置在该顶部上；
该内环喷火器包括下端及上端，该上端开设有该内环混合腔，该下端设置有与该第一定位件相配合连接的第二定位件。
在一个实施方式中，该第一定位件为间隔设置在该顶部的多个凸缘，该第二定位件为间隔开设在该下端的卡位，该间隙形成在相邻两个凸缘之间，及/或形成在相邻两个卡位之间。
在一个实施方式中，该外环喷火器包括围成该外环混合腔的环形外壁、环形内壁及弧形内壁，该弧形内壁连接该环形内壁及该连接部，该环形外壁与该环形内壁及该弧形内壁相对设置，该环形外壁与该环形内壁所围成的该外环混合腔朝远离该连接部的方向逐渐变窄。
在一个实施方式中，该环形内壁所构成的圆的圆心与该文丘里管所构成的圆的圆心存在偏距。
在一个实施方式中，该外环喷火器包括隔断部，该隔断部将该外环混合腔分成两个独立的子腔。
在一个实施方式中，该外环混合腔为整体连通的混合腔。
一种燃气用具，包括如上所述的燃烧器。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是较佳实施方式的燃烧器的立体示意图。
图2是图1的燃烧器的剖面示意图。
图3是图1的燃烧器的喷火器的立体示意图。
图4是图3的喷火器的平面示意图。
图5是另一个较佳实施方式的喷火器的立体示意图。
附图的标号如下：燃烧器-100、200，底杯-102，喷火器-104，火盖-106，主体-108， 进气管-110，单个喷嘴-112，一次空气补充腔-114，顶部-116，底部-118，进气端-120，出气端-122，进气通道-124，第一进气段-126，第二进气段-128，第三进气段-130，内环喷火器-132，外环喷火器-134，连接部-136，文丘里管-138、204，下端-140，上端-142，内环混合腔-144，内环环形壁-146，内环火槽-148，中间通道-150，环形外壁-152，环形内壁-154，弧形内壁-156，外环混合腔-158、202，外环火槽-160，中环火槽-162，第一半环形内壁-164，第二半环形内壁-166，第一定位件-168，第二定位件-170，隔断部-172，通槽-174，内环火盖-176，火盖连接部-178，外环火盖-180。
具体实施方式
下面详细描述本发明的实施方式，该实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参图1-4，本发明第一较佳实施方式的燃烧器100包括底杯102、喷火器104及火盖106。
具体地，该底杯102包括主体108、进气管110及单个喷嘴112。
该主体108大致呈圆柱状，其开设有一次空气补充腔114。主体108包括顶部116及底部118。
该进气管110连接在该底部118。进气管110包括进气端120及出气端122，该出气端122位于一次空气补充腔114内，进气端120位于一次空气补充腔114外。
见图2，进气管110开设进气通道124。该进气通道124贯穿该进气端120及该出气端122。该进气管110的半径由该进气端120向该出气端122的方向减少，如此，有利于燃气向一次空气补充腔114喷射。本实施方式中，该进气通道124包括三个进气段，沿进气端120向出气端122分别为第一进气段126、第二进气段128及第三进气段130。第一进气段126的直径较第二进气段128的直径大，第二进气段128的直径较第三进气段130的直径大。
该单个喷嘴112向上连接在该出气端122，且连通进气通道124。因此，水平流入的燃气经喷嘴112垂直喷射出来，使燃气能够向上供给喷火器104。
该喷火器104设置在该底杯102的主体108的顶部116上。该喷火器104为环状喷火器，例如圆环状喷火器。
见图2及图3，该喷火器104包括内环喷火器132、外环喷火器134、连接部136及单个文丘里管138。
该外环喷火器134围绕该内环喷火器132，该连接部136连接该内环喷火器132及该外环喷火器134。文丘里管138与内环喷火器132连接。
本实施方式中，文丘里管138竖直设置在内环喷火器132上，且与该喷嘴112相对。如此，从喷嘴112喷射出来的燃气可直接进入文丘里管138，提高了进气效率。
见图2，内环喷火器132呈中空柱状，其包括下端140及上端142，该上端142开设有内环混合腔144，具体地，见图3，上端142形成有相对于文丘里管138凸出的内环环形壁146，该内环环形壁146围成该内环混合腔144。较佳地，内环喷火器132与 文丘里管138同心设置。
内环环形壁146开设有内环火槽148，内环火槽148与内环混合腔144连通，使得位于内环混合腔144内的燃气与空气的混合气体能够从内环混合腔144经内环火槽148向外喷射，燃烧形成内环火。
见图2及图3，连接部136开设有中间通道150。本实施方式中，连接部136的数量为两个，该两个连接部136沿内环喷火器132的径向均匀分布。中间通道150连通内环混合腔144。位于内环混合腔144内的混合气体可进入中间通道150。
外环喷火器134通过连接部136连接内环喷火器132。具体地，见图3，该外环喷火器134包括环形外壁152、环形内壁154及弧形内壁156。环形外壁152位于外环喷火器134的外周缘。环形内壁154位于外环喷火器134的内周缘。该环形外壁152与该环形内壁154及弧形内壁156相对设置。弧形内壁156连接连接部136及环形内壁154。
见图2及图3，环形外壁152、环形内壁154及弧形内壁156共同围成外环混合腔158。位于内环混合腔144内的混合气体可以经中间通道150进入外环混合腔158。
见图2及图3，环形外壁152开设有外环火槽160，外环火槽160与外环混合腔158连通。位于外环混合腔158内的混合气体可经外环火槽160向外喷射，燃烧形成外环火。见图3，环形内壁154开设有中环火槽162，中环火槽162与外环混合腔158连通。位于外环混合腔158内的混合气体可经中环火槽162向外喷射，燃烧形成中环火。因此，本实施方式的喷火器104可提供三环火，实现了外环火、中环火、内环火的多环高效燃烧器100。可以理解，如燃烧器100仅需要两环火时，可灵活设置，如在环形内壁154上不设置中环火槽162即可。
本实施方式中，该环形外壁152与该环形内壁154所围成的该外环混合腔158朝远离该连接部136的方向逐渐变窄。如此，使得气体在外环混合室158的传播过程通道逐渐变窄，保证燃烧充分性的同时减少内环环形壁146所形成的内环火与环形内壁154所形成的中环火之间的相互干扰，提升使用了燃烧器100的寿命。
具体地，环形外壁152所构成的圆的圆心与文丘里管138所构成的圆的圆心重合，而该环形内壁154所构成的圆的圆心与该文丘里管138所构成的圆圆心存在偏距。本实施方式中，请见图4，环形内壁154包括第一半环形内壁164及第二半环形内壁166，第一半环形内壁164所构成的圆的圆心O1较文丘里管所构成的圆的圆心P向上偏距，第二半环形内壁166所构成的圆的圆心O2较文丘里管所构成的圆的圆心P向下偏距。因此，第一半环形内壁164与环形外壁152所围成的外环混合腔158朝远离该连接部136的方向逐渐变窄，第二半环形内壁166与环形外壁152所围成的外环混合腔158朝远离该连接部136的方向逐渐变窄。
进一步地，为了喷火器104与底杯102的装配，见图2，主体108包括第一定位件168。该第一定位件168设置在该顶部116上。内环喷火器132的下端140设置有第二定位件170，第二定位件170与该第一定位件168相配合连接而将该喷火器104定位在该底杯102上。
本实施方式中，该第一定位件168为间隔设置在该顶部116的多个凸缘。该第二定位件170为间隔开设在该下端140的卡位。凸缘与对应的卡位配合而定位该喷火器104在底杯102上。
另外，为了补充一次空气至一次空气补充腔114，该喷火器104与该底杯102之间形成有间隙(图未示)。该间隙与一次空气补充腔114连通，从而允许一次空气从该间隙进入至一次空气补充腔114内及该文丘里管138，使得一次空气能够与从该喷嘴112喷入该文丘里管138的燃气混合形成混合气体。
具体地，间隙可形成在相邻两个凸缘之间，及形成在相邻两个卡位之间。或者，在其它实施方式中，间隙可形成在相邻两个凸缘之间，或形成在相邻两个卡位之间。
见图3，该外环喷火器134还包括隔断部172，该隔断部172将该外环混合腔158分成两个独立的子腔。具体地，隔断部172的数量为两个，每个隔断部172为沿喷火器104的径向延伸的两个隔断壁，两个隔断壁之间构成通槽174。
当然，隔断部172的结构并不限于本实施方式，在其它实施方式中，隔断结构172可以根据需求而设定。
火盖106设置在该喷火器104上。该火盖106覆盖该内环混合腔144、该外环混合腔158及该中间通道150，使得内环混合腔144内的混合气体能通过内环火槽148向外喷射，外环混合腔158内的混合气体能通过外环火槽160及中环火槽162向外喷射。
具体地，见图1，火盖106包括内环火盖176、火盖连接部178及外环火盖180，外环火盖180围绕内环火盖176，火盖连接部178连接外环火盖180及内环火盖176。
外环火盖180覆盖外环混合腔158，内环火盖176覆盖内环混合腔144，火盖连接部178覆盖中间通道150。
工作时，燃气通过进气通道124进入燃烧器100，经喷嘴112喷射至一次空气补充腔114内，同时，一次空气经间隙进入一次空气补充腔114，与燃气一起进入文丘里管138进行预混以形成燃气与空气的混合气体，该混合气体从文丘里管138进入内环混合腔144，混合气体的一部分经内环火槽148向外喷射，燃烧形成内环火。
混合气体的另一部分经中间通道150向外环混合腔158扩散，到达外环混合腔158的混合气体经外环火槽160向外喷射，燃烧形成外环火，及经中环火槽162向外喷射，燃烧形成中环火。
综上所述，上述燃烧器100使用单喷嘴112及单个文丘里管138，燃气与空气的混合气体可由内环混合腔144通过中间通道150引向外环混合腔158，因此，上述燃烧器100减少了制造过程中设置多个文丘里室所带来的成本。
请参图5，本发明第二较佳实施方式提供的一种喷火器200。本实施方式的喷火器200与以上实施方式的喷火器104基本相同，其不同之处在于，本实施方式的喷火器200省略了隔断部，即喷火器200的外环混合腔202为整体连通的混合腔。如此，使得气体在外环混合腔202的流通变得流畅，同时当气体从文丘里管204引出后，该喷火器200可调节外环燃烧区左右区气体流量的均匀性。
本发明第三较佳实施方式提供的燃气用具包括燃烧器。燃烧器可为以上实施方式的燃烧器100，燃烧器可包括以上任一实施方式的喷火器。
可以理解，燃气用具可为燃气灶具或大烤箱等燃气用具。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种燃烧器，其特征在于，包括：
    底杯，该底杯包括进气通道及与该进气通道连通且向上设置的单个喷嘴；
    设置在该底杯上的环状喷火器，该喷火器包括与该单个喷嘴相对设置的单个文丘里管，该喷火器与该底杯之间形成有间隙从而允许一次空气从该间隙进入该文丘里管与从该喷嘴喷入该文丘里管的燃气混合形成混合气体；该喷火器形成有内环混合腔、外环混合腔及中间通道，该外环混合腔围绕该内环混合腔设置，该中间通道连通该内环混合腔及该外环混合腔，该内环混合腔连接该文丘里管；及
    设置在该喷火器上的火盖，该火盖覆盖该内环混合腔、该外环混合腔及该中间通道。
  2. 如权利要求1所述的燃烧器，其特征在于，该底杯包括进气管，该进气管开设有该进气通道，该进气管包括进气端及出气端，该进气通道贯穿该进气端及该出气端，该进气管的半径由该进气端向该出气端的方向减少，该喷嘴连接在该出气端。
  3. 如权利要求1所述的燃烧器，其特征在于，该喷火器包括内环喷火器、外环喷火器及连接部，该外环喷火器围绕该内环喷火器，该连接部连接该内环喷火器及该外环喷火器；
    该外环喷火器开设有该外环混合腔；
    该内环喷火器开设有该内环混合腔；
    该连接部开设有该中间通道。
  4. 如权利要求3所述的燃烧器，其特征在于，该底杯包括主体，该主体包括顶部、底部及第一定位件，该进气管连接在该底部，该第一定位件设置在该顶部上；
    该内环喷火器包括下端及上端，该上端开设有该内环混合腔，该下端设置有与该第一定位件相配合连接的第二定位件。
  5. 如权利要求4所述的燃烧器，其特征在于，该第一定位件为间隔设置在该顶部的多个凸缘，该第二定位件为间隔开设在该下端的卡位，该间隙形成在相邻两个凸缘之间，及/或形成在相邻两个卡位之间。
  6. 如权利要求3所述的燃烧器，其特征在于，该外环喷火器包括围成该外环混合腔的环形外壁、环形内壁及弧形内壁，该弧形内壁连接该环形内壁及该连接部，该环形 外壁与该环形内壁及该弧形内壁相对设置，该环形外壁与该环形内壁所围成的该外环混合腔朝远离该连接部的方向逐渐变窄。
  7. 如权利要求6所述的燃烧器，其特征在于，该环形内壁所构成的圆的圆心与该文丘里管所构成的圆的圆心存在偏距。
  8. 如权利要求3所述的燃烧器，其特征在于，该外环喷火器包括隔断部，该隔断部将该外环混合腔分成两个独立的子腔。
  9. 如权利要求1所述的燃烧器，其特征在于，该外环混合腔为整体连通的混合腔。
  10. 一种燃气用具，其特征在于，包括如权利要求1-9任一项所述的燃烧器。
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CN108036314A (zh) * 2017-12-29 2018-05-15 华帝股份有限公司 一种特殊出气结构燃烧器
CN108224423A (zh) * 2018-02-10 2018-06-29 广东吉宝电器科技有限公司 一种双腔直喷燃烧器
CN108592094A (zh) * 2018-06-22 2018-09-28 绍兴市升博厨房电器有限公司 一种易清洁防干烧安全燃烧器
CN111102571A (zh) * 2020-03-09 2020-05-05 陈毅 完全上进风燃烧器
CN111121029A (zh) * 2018-10-31 2020-05-08 宁波方太厨具有限公司 一种上进风燃烧器以及应用有该上进风燃烧器的灶具
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CN111853772A (zh) * 2019-04-27 2020-10-30 浙江三峰电子有限公司 涡轮燃烧器
CN111102571A (zh) * 2020-03-09 2020-05-05 陈毅 完全上进风燃烧器
CN114321917A (zh) * 2022-01-26 2022-04-12 佛山市顺德区美的洗涤电器制造有限公司 燃烧器以及燃气灶

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