WO2018166065A1 - 分气结构、燃烧器和燃气灶具 - Google Patents

分气结构、燃烧器和燃气灶具 Download PDF

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Publication number
WO2018166065A1
WO2018166065A1 PCT/CN2017/085217 CN2017085217W WO2018166065A1 WO 2018166065 A1 WO2018166065 A1 WO 2018166065A1 CN 2017085217 W CN2017085217 W CN 2017085217W WO 2018166065 A1 WO2018166065 A1 WO 2018166065A1
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WIPO (PCT)
Prior art keywords
gas
separation structure
chamber
gas separation
flow guiding
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PCT/CN2017/085217
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English (en)
French (fr)
Inventor
赖育文
余悦泳
季俊生
黄河
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
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Publication date
Priority claimed from CN201710153994.4A external-priority patent/CN106949474B/zh
Priority claimed from CN201710153037.1A external-priority patent/CN106949466B/zh
Priority claimed from CN201710153998.2A external-priority patent/CN106907708A/zh
Priority claimed from CN201710153212.7A external-priority patent/CN106949473B/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 WO2018166065A1 publication Critical patent/WO2018166065A1/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
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners

Definitions

  • the invention relates to the field of kitchenware, in particular to a gas separation structure, a burner and a gas cooker.
  • the burner has a low gas flow rate and unstable gas combustion due to unreasonable design of the gas separation structure.
  • Embodiments of the present invention provide a gas separation structure for a burner, and the gas separation structure includes:
  • the body is open with a chamber, the bottom surface of the chamber is provided with an air inlet hole communicating with the chamber, and the hole wall of the air inlet hole comprises a flow guiding surface;
  • a shielding piece located in the air inlet hole, the shielding piece being spaced apart from the flow guiding surface and cooperating with the flow guiding surface to form a flow guiding channel for guiding gas into the chamber.
  • the gas enters the chamber along the flow guiding channel, which greatly improves the gas flow velocity and fluency of the gas entering the chamber, so that the combustion of the gas outside the gas separation structure is more stable.
  • the bottom surface of the chamber is in the same plane as the top surface of the shielding sheet.
  • the air inlet aperture is lanceolate, the air inlet aperture being wider in the middle and taper from the center to the sides.
  • the flow guiding channel has a tapered shape along an intake direction of the intake port.
  • the bottom surface of the body forms a protrusion that protrudes away from the chamber, and the air inlet hole penetrates the protrusion.
  • the flow guiding surface is curved.
  • the shielding sheet comprises a shielding sheet top surface, a shielding sheet bottom surface and a connecting surface, the shielding sheet top surface and the shielding sheet bottom surface are flat, and the connecting surface is connected to the shielding sheet top surface. And the bottom surface of the shielding piece, the connecting surface is curved and forms the flow guiding channel with the guiding surface.
  • an orthographic projection of the shutter on the flow channel is located on the flow channel.
  • the shielding piece includes a connecting portion connected to the hole wall of the air inlet hole, and the connecting portion is provided with a plurality of through holes, the through hole communicating with the air inlet hole and the Said chamber.
  • the gas separation structure includes a fixing portion that connects the shielding sheet and a bottom surface of the chamber.
  • the gas separation structure includes a fixing portion that connects the shielding sheet and a bottom surface of the chamber.
  • the inner wall of the chamber is provided with a stepped mounting portion for mounting a fire cover.
  • a burner according to an embodiment of the present invention includes the gas separation structure according to any of the above embodiments.
  • the gas enters the chamber along the flow guiding channel, which greatly improves the gas flow velocity and fluency of the gas entering the chamber, so that the combustion of the gas outside the burner is more stable.
  • a gas cooker according to an embodiment of the present invention includes the burner of any of the above embodiments.
  • the gas enters the chamber along the flow guiding channel, which greatly improves the gas flow speed and smoothness of the gas entering the chamber, so that the combustion of the gas outside the gas cooker is more stable.
  • FIG. 1 is a schematic perspective view of a gas separation structure according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a gas separation structure according to an embodiment of the present invention.
  • FIG 3 is a schematic cross-sectional view showing a gas separation structure according to an embodiment of the present invention.
  • FIG 4 is another perspective view of the gas separation structure of the embodiment of the present invention.
  • Fig. 5 is a perspective exploded view of the burner of the embodiment of the present invention.
  • Fig. 6 is a schematic cross-sectional view of a burner according to an embodiment of the present invention.
  • a gas separation structure 100 includes a body 10 and a shielding sheet 20 .
  • the body 10 is open with a chamber 12.
  • the bottom surface 124 of the chamber 12 defines an air inlet opening 14 that communicates with the chamber 12.
  • the bore wall of the intake aperture 14 includes a flow directing surface 142.
  • the shielding piece 20 is located in the air inlet hole 14.
  • the shielding sheet 20 is disposed at a distance from the flow guiding surface 142 and together with the flow guiding surface 142 forms a flow guiding passage 18 for guiding gas into the chamber 12.
  • the gas enters the chamber 12 along the flow guiding channel 18,
  • the gas flow rate and fluency of the gas entering the chamber 12 are greatly improved, so that the combustion of the gas outside the gas separation structure 100 is more stable.
  • the body 10 is substantially cylindrical.
  • the structure is simple and easy to manufacture. At the same time, it is convenient to make the gas enter the chamber 12 more smoothly, and to ensure the flow rate of the gas, thereby ensuring the stability of the combustion of the gas at the fire cover provided on the gas separation structure 100.
  • the gas separation structure 100 can be made of copper.
  • the gas separation structure 100 can withstand high temperatures and prolong the service life. At the same time, it is easy to cast and form a structure such as the air inlet hole 14 and the flow guiding surface 142 to achieve a better gas separation effect.
  • a mixed gas of gas and air is sprayed toward the shielding sheet 20 to form a gas flow, and the shielding sheet 20 turns the direction of the mixed gas to the flow guiding passage 18, and the mixed gas enters the chamber 12 through the flow guiding passage 18.
  • the bottom surface 124 of the chamber 12 is in the same plane as the top surface 22 of the shield.
  • the area of the inlet aperture 14 is half the area of the bottom surface 124 of the chamber 12.
  • the air inlet hole 14 can ensure that sufficient gas enters into the chamber 12, and the gas cover for obtaining the gas supply through the gas separation structure 100 is timely provided with gas, thereby ensuring the stability of the gas combustion, and at the same time, does not enter the cavity.
  • the gas in chamber 12 decelerates severely.
  • the air inlet aperture 14 is lanceolate.
  • the center of the intake hole 14 is wider and gradually narrows from the center to both sides.
  • the shape and area of the air intake opening 14 may also be adjusted according to the size of the air separation structure 100 and the size of the fire cover for obtaining the gas supply through the air separation structure 100 to ensure sufficient and rapid gas supply to all the fire covers.
  • the flow guiding passage 18 has a tapered shape along the intake direction of the intake port 14.
  • the bottom surface of the body 10 forms a protrusion 144 that protrudes away from the chamber 12, and the air inlet hole 14 penetrates the protrusion 144.
  • the distance between the shielding piece 20 and the air inlet of the air inlet hole 14 is increased, so that more gas deflected by the shielding piece 20 enters the flow guiding channel 18, and the air supply amount of the air separation structure 100 is ensured.
  • the distance of the bottom surface 124 of the body 10 protruding from the projection 144 can be adjusted with the size of the chamber 12 to optimize the amount of gas and velocity of the gas entering the gas separation structure 100 through the flow guiding passage 18.
  • the flow guiding surface 142 is curved.
  • the curved flow surface 142 reduces the resistance to gas and thereby achieves a faster rate.
  • the curved flow guiding surface 142 makes the gas flow more stable, avoiding the formation of turbulence or turbulence after the gas enters the chamber 12, and the situation affecting the combustion stability of the gas occurs.
  • junction of the flow guiding surface 142 and the bottom surface 124 of the chamber 12 is a rounded curved surface.
  • the flow guiding surface 142 may also be provided as a slope.
  • the acute angle formed by the flow guiding surface 142 and the bottom surface 24 of the chamber 12 is 45 degrees.
  • the rate at which gas enters the chamber 12 can be further optimized.
  • the visor 20 includes a visor top surface 22, a visor bottom surface 24, and a connecting surface 26.
  • the visor top surface 22 and the visor bottom surface 24 are planar.
  • the connecting surface 26 connects the shielding sheet top surface 22 and the shielding sheet bottom surface 24.
  • the connecting surface 26 is curved and forms a flow guiding channel 18 with the flow guiding surface 142.
  • the connecting surface 26 can cooperate with the flow guiding surface 142 to form a flow guiding passage 18 through which the gas smoothly passes.
  • the distance between the connecting surface 26 and the flow guiding surface 142 is 0.5 cm - 1.5 cm.
  • the gas passes through the flow guiding passage 18, the gas is squeezed and the flow rate is increased due to the narrowing of the air flow passage.
  • the gas creates a negative pressure below the flow guiding channel 18, drawing more gas into the flow guiding channel 18, further increasing the flow rate of the gas.
  • the distance between the top surface 22 of the shielding sheet and the bottom surface 24 of the shielding sheet is 0.2-0.5 cm, that is, the thickness of the shielding sheet 20 ranges from 0.2 to 0.5 cm.
  • the shielding sheet 20 can withstand the impact of the gas flow, is less prone to breakage, causes air leakage, affects the gas separation effect of the gas separation structure 100, and can save the material of the gas separation structure 100 and reduce the production cost.
  • the orthographic projection of the shutter 20 on the flow channel 18 is located on the flow channel 18.
  • the flow guiding passage 18 can also introduce a small amount of gas returning in the original direction into the chamber 12, increasing the supply amount of the chamber 12.
  • the shutter 20 includes a connection 28 that is coupled to the bore wall of the air intake aperture 14.
  • a plurality of through holes 282 are defined in the connecting portion 28. The through hole 282 communicates with the intake hole 14 and the chamber 12.
  • the number of the through holes 282 is not limited to the number of the embodiments discussed above, but may be adjusted according to the magnitude of the gas flow rate and the size of the gas separation structure 100 to achieve a better gas separation effect.
  • the gas separation structure 100 includes a fixed portion 11.
  • the fixing portion 11 connects the shielding sheet 20 and the bottom surface 124 of the chamber 12.
  • the shielding sheet 20 in a high temperature environment is easily deformed, which may affect the gas separation effect of the gas separation structure 100.
  • the fixing portion 11 further reinforces the shielding piece 20, ensuring that the shielding piece 20 is stably disposed on the body 10, is not easily deformed, thereby achieving a better gas separation effect, and improving the reliability of the gas separation structure 100.
  • the portion where the fixing portion 11 and the shielding piece 20 are connected, the portion where the fixing portion 11 and the bottom surface 124 of the chamber 12 are connected are triangular prisms.
  • the fixing portion 11 can stably fix the shielding piece 20 to the body 10 due to the strong stability of the triangle.
  • the shape of the fixing portion 11 may also be a cylinder.
  • the surface of the smooth fixing portion 11 does not affect the gas flow entering the gas separation structure 100, and the smoothness of the gas gas flow in the gas separation structure 100 is further improved.
  • the bottom of the gas separation structure 100 is provided with a positioning member 13 for mounting the gas separation structure 100 to the burner 200.
  • the side wall of the gas separation structure 100 is provided with a receiving portion 15 for making the gas separation structure 100 more stable when the gas separation structure 100 is installed.
  • the inner wall of the chamber 12 is provided with a stepped mounting portion 122.
  • the mounting portion 122 is for mounting a fire cover.
  • the fire cover can be more stably installed on the gas separation structure 100, and there is no left and right displacement, so that the gas in the gas separation structure 100 forms a stable flame at the fire cover.
  • the stepped mounting portion 122 can prevent the gas in the gas separation structure 100 from leaking from the gap between the mounting portion 122 and the gas separation structure 100, thereby affecting the heating effect.
  • the fire cover can be a middle fire cover 2043.
  • a combustor 200 in accordance with an embodiment of the present invention, includes a gas separation structure 100 of any of the above embodiments.
  • the gas enters the chamber 12 along the flow guiding passage 18, which greatly improves the gas flow rate and smoothness of the gas entering the burner 200, so that the combustion of the gas outside the burner 200 is more stable.
  • the gas separation structure 100 when the gas separation structure 100 is applied to the combustor 200, the gas separation structure 100 can serve as a gas separation structure of the inner ring of the combustor 200, and the porous ceramic body 2047 is placed in the chamber 12.
  • the gas structure 100 burns the gas injected outward, heats the porous ceramic body 2047, forms an infrared cooking, and realizes a function of a very small fire, a charcoal slow cook, and the like.
  • the combustor 200 of an embodiment of the present invention further includes a base 202 and an upper air intake structure 204.
  • a gas inlet 2022 is formed in the base 202, a gas inlet passage 2026 is disposed on the bottom surface of the base, and a liquid receiving tray 2024 is disposed on the base 202.
  • the base 202 and the liquid receiving tray 2024 are spaced apart to form a first air replenishing passage 206.
  • a second air replenishing passage 208 is opened in the upper air intake structure 204.
  • the first air inlet structure 204 is further provided with two first air guiding tubes 2042.
  • the first air conduit 2042 extends into the gas inlet 2022.
  • a gas chamber is disposed on the upper air intake structure 204.
  • the gas chamber on the upper air intake structure 204 corresponds to the outer ring gas chamber 2044.
  • An outer ring fire cover 2046 is mounted on the outer ring gas chamber 2044.
  • the upper air inlet structure 204 is further provided with a middle ring gas chamber 2048.
  • the middle ring gas chamber 2048 is provided with two second air guiding tubes 2041.
  • the second air guiding tube 2041 extends into the gas inlet chamber 2022 and is installed on the middle ring gas chamber 2048.
  • There is a fire cover 2043 in Central The gas separation structure 100 is disposed in the middle gas chamber 2048, and the chamber 12 of the gas separation structure 100 serves as the inner ring gas chamber 2045.
  • a porous ceramic body 2047 is installed in the inner ring gas chamber 2045.
  • the gas is input from the gas inlet 2026, and the gas is injected into the gas inlet 2022 through the nozzle 2028 disposed on the gas inlet passage 2026, and the injected gas is between the gas inlets.
  • 2022 generates a negative pressure to draw primary air A from the first air replenishing passage 206.
  • the primary air and the gas are premixed between the gas inlets 2022 to form a mixed gas and pass through the upper air intake structure 204.
  • a portion of the mixed gas is guided into the outer ring gas chamber 2044 via the first air guiding tube 2042.
  • the outer ring fire cover 2046 is sprayed outward and burned to form an outer ring fire.
  • the gas mixed with another portion of the gas in the gas inlet 2022 is guided by one of the second air tubes 2041 into the middle ring gas chamber 2048, as shown by line A2 in Fig. 6, through the central fire cover 2043. Spraying and burning to form a central fire.
  • the flow direction of the mixed gas entering the middle gas chamber 2048 can be indicated by a broken line A21.
  • a further part of the mixed gas of the gas and the air in the gas inlet 2022 is guided by the other second air guiding tube 2041 into the inner ring gas chamber 2045, and is sprayed outward through the porous ceramic body 2047 to form an inner ring of infrared rays. fire.
  • the flow direction of the mixed gas entering the inner ring gas chamber 2045 can be indicated by a broken line A22.
  • the second air replenishing passage 208 can supplement the secondary air when the gas at the middle ring fire cover 2043 and the porous ceramic body 2047 is burned, and/or replenish the secondary air when the gas inside the outer ring fire cover 2046 is burned, and the secondary air passes through the first
  • the second air replenishing passage 208 enters the inside of the combustion cooker 200 and flows upward, thereby achieving supplemental secondary air.
  • the flow direction of the gas in which the secondary air enters the combustion cooker 200 is as indicated by a broken line B with an arrow in the figure.
  • the burner 200 realizes the three-ring fire burner 200 through the first air conduit 2042, the second air conduit 2041, and the air separation structure 100, improving the heating efficiency of the burner 200.
  • a gas cooker according to an embodiment of the present invention includes the combustor 200 of the above embodiment.
  • the gas enters the chamber 12 along the flow guiding channel 18, which greatly improves the airflow speed and fluency of the gas entering the gas cooker, so that the gas is burned outside the gas cooker.
  • the burning is more stable.
  • 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.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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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

一种分气结构（100）、燃烧器（200）和燃气灶具。分气结构（100）包括本体（10）和遮挡片（20），本体（10）开设有腔室（12），腔室（12）的底面（124）开设有与腔室（12）相通的进气孔（14），进气孔（14）的孔壁包括导流面（142），遮挡片（20）位于进气孔（14）中，遮挡片（20）与导流面（142）相对间隔设置并与导流面（142）共同形成用于导引气流进入腔室（12）的导流通道（18）。

Description

分气结构、燃烧器和燃气灶具
优先权信息
本申请请求2017年03月15日向中国国家知识产权局提交的、专利申请号为201710153212.7、2017年03月15日向中国国家知识产权局提交的、专利申请号为201710153994.4、2017年03月15日向中国国家知识产权局提交的、专利申请号为201710153037.1及2017年03月15日向中国国家知识产权局提交的、专利申请号为201710153998.2的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本发明涉及厨具领域，具体涉及一种分气结构、燃烧器和燃气灶具。
背景技术
在相关技术中，燃烧器由于分气结构设计不合理等的原因，导致燃气气体流速较低，燃气燃烧不稳定。
发明内容
本发明实施方式提供一种分气结构，用于燃烧器，分气结构包括：
本体，所述本体开设有腔室，所述腔室的底面开设有与所述腔室相通的进气孔，所述进气孔的孔壁包括导流面；
位于所述进气孔中的遮挡片，所述遮挡片与所述导流面相对间隔设置并与所述导流面共同形成用于导引气体进入所述腔室的导流通道。
本发明实施方式中的分气结构，气体沿导流通道进入腔室，大大提高了气体进入腔室的气流速度和流畅度，使得燃气在分气结构外的燃烧更稳定。
在某些实施方式中，所述腔室的底面与所述遮挡片的顶面处于同一平面。
在某些实施方式中，所述进气孔呈披针形，所述进气孔的中间较宽，从中间向两边逐渐变窄。
在某些实施方式中，所述导流通道沿所述进气孔的进气方向呈渐扩的形状。
在某些实施方式中，所述本体的底面形成向远离所述腔室方向凸出的凸出部，所述进气孔贯穿所述凸出部。
在某些实施方式中，所述导流面呈弧形。
在某些实施方式中，所述遮挡片包括遮挡片顶面、遮挡片底面和连接面，所述遮挡片顶面和所述遮挡片底面为平面，所述连接面连接所述遮挡片顶面和所述遮挡片底面，所述连接面呈弧形且与所述导流面形成所述导流通道。
在某些实施方式中，所述遮挡片在所述导流通道上的正投影位于所述导流通道上。
在某些实施方式中，所述遮挡片包括与所述进气孔的孔壁连接的连接部，所述连接部上开设有多个通孔，所述通孔连通所述进气孔和所述腔室。
在某些实施方式中，所述分气结构包括固定部，所述固定部连接所述遮挡片和所述腔室的底面。
在某些实施方式中，所述分气结构包括固定部，所述固定部连接所述遮挡片和所述腔室的底面。
在某些实施方式中，所述腔室的内壁上设置有阶梯状的安装部，所述安装部用于安装火盖。
本发明实施方式的一种燃烧器，包括如上任一实施方式所述的分气结构。
本发明实施方式中的燃烧器，气体沿导流通道进入腔室，大大提高了气体进入腔室的气流速度和流畅度，使得燃气在燃烧器外的燃烧更稳定。
本发明实施方式的一种燃气灶具，包括如上任一实施方式所述的燃烧器。
本发明实施方式中的燃气灶具，气体沿导流通道进入腔室，大大提高了气体进入腔室的气流速度和流畅度，使得燃气在燃气灶具外的燃烧更稳定。
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是本发明实施方式的分气结构的立体示意图。
图2是本发明实施方式的分气结构的平面示意图。
图3是本发明实施方式的分气结构的截面示意图。
图4是本发明实施方式的分气结构的另一立体示意图。
图5是本发明实施方式的燃烧器的立体分解示意图。
图6是本发明实施方式的燃烧器的截面示意图。
具体实施方式
以下结合附图对本发明的实施方式作进一步说明。附图中相同或类似的标号自始至终表示相同或类似的元件或具有相同或类似功能的元件。
另外，下面结合附图描述的本发明的实施方式是示例性的，仅用于解释本发明的实施方式，而不能理解为对本发明的限制。
请参阅图1-图3，本发明实施方式提供的一种分气结构100，其包括本体10和遮挡片20。本体10开设有腔室12。腔室12的底面124开设有与腔室12相通的进气孔14。进气孔14的孔壁包括导流面142。遮挡片20位于进气孔14中。遮挡片20与导流面142相对间隔设置并与导流面142共同形成用于导引气体进入腔室12的导流通道18。
本发明实施方式中的分气结构100，气体沿导流通道18进入腔室12， 大大提高了气体进入腔室12的气流速度和流畅度，使得燃气在分气结构100外的燃烧更稳定。
具体地，本发明实施方式中，本体10基本呈圆柱状。
如此，结构简单，易于制造。同时，便于气体进入腔室12时更流畅，保证气体的流速，从而保证燃气在设置于分气结构100上的火盖处燃烧的稳定性。
在一个例子中，分气结构100可采用铜制成。
如此，分气结构100能耐高温，延长使用寿命。同时，易于铸造成型，形成进气孔14、导流面142等面的结构，实现较佳的分气作用。
分气结构100使用时，燃气与空气的混合气体喷向遮挡片20形成气流，遮挡片20将混合气体的方向转向导流通道18，混合气体经导流通道18进入腔室12内。
请参考图4，在某些实施方式中，腔室12的底面124与遮挡片顶面22处于同一平面。
如此，使得气体从进气孔14进入腔室12后气体流动平稳、迅速，避免出现遮挡片顶面22和腔室12的底面124不在同一平面时气体进入腔室12后形成紊流的现象，进一步保证燃气从腔室12射去后的燃烧稳定。
在某些实施方式中，进气孔14的面积为腔室12的底面124的面积的一半。
如此，进气孔14能保证有充足的气体进入到腔室12内，为通过分气结构100获取燃气供应的火盖及时提供燃气，保证燃气燃烧的稳定性，同时，也不会使进入腔室12内的气体减速严重。
在某些实施方式中，进气孔14呈披针形。进气孔14的中间较宽，从中间向两边逐渐变窄。
如此，有利于气体较流畅地进入分气结构100。同时，由于进气孔14两端变窄，气体向进气孔14中间挤压，有效提高了气体进入腔室12时的流 速。
进一步地，进气孔14的形状和面积还可根据分气结构100的大小以及通过分气结构100获取气体供应的火盖的大小调整，以保证对所有火盖保持充足和迅速的燃气供应。
在某些实施方式中，导流通道18沿进气孔14的进气方向呈渐扩的形状。
如此，有助于气体更顺畅地通过导流通道18进入分气结构100，同时也增加了燃气的流速。
具体地，在某些实施方式中，本体10的底面形成向远离腔室12方向凸出的凸出部144，进气孔14贯穿凸出部144。
如此，增加了遮挡片20与进气孔14的进气口的距离，使得更多的被遮挡片20转向的气体进入导流通道18内，保证了分气结构100的供气量。
当然，凸出部144突出的本体10的底面124的距离可随腔室12的大小进行调整以使气体通过导流通道18进入分气结构100的供气量和速度更加优化。
在某些实施方式中，导流面142呈弧形。
如此，气体沿导流通道18进入腔室12时，弧形的导流面142能使气体受到的阻力减少，进而达到更快的速度。同时，弧形的导流面142使得气体流动更加平稳，避免了气体进入腔室12内后形成紊流或湍流，而出现影响燃气燃烧稳定性的情况。
具体地，导流面142和腔室12的底面124的连接处为圆滑曲面。
如此，增加气体进入腔室12内的流畅性。
进一步地，导流面142还可设置为斜面。
如此，也能实现协助燃气顺畅进入腔室12内的目的。
较佳地，导流面142为斜面时，导流面142和腔室12的底面24形成的锐角为45度。
如此，能进一步优化气体进入腔室12内的速度。
在某些实施方式中，遮挡片20包括遮挡片顶面22、遮挡片底面24和连接面26。遮挡片顶面22和遮挡片底面24为平面。连接面26连接遮挡片顶面22和遮挡片底面24。连接面26呈弧形且与导流面142形成导流通道18。
如此，气体冲击遮挡片底面24后，被直接转向，减少了气体的速度损失。连接面26则能配合导流面142，形成供气体顺畅通过的导流通道18。
进一步地，本发明实施方式中连接面26和导流面142之间的距离为0.5厘米-1.5厘米。
如此，气体通过导流通道18时，由于气流通道变窄，气体发生挤压，流速增加。同时，气体在导流通道18下方形成负压，吸取更多气体进入导流通道18，进一步增加了气体的流速。
本发明实施方式中，遮挡片顶面22和遮挡片底面24之间的距离为0.2-0.5厘米，也就是说，遮挡片20的厚度范围为0.2-0.5厘米。
如此，一来遮挡片20能经受燃气气流的冲击，不易发生破损，导致漏气，影响分气结构100的分气效果，二来能节省分气结构100的用料，降低生产成本。
进一步地，在某些实施方式中，遮挡片20在导流通道18上的正投影位于导流通道18上。
如此，气体进入分气结构100被遮挡片20转向时，导流通道18还能将沿原方向返回的少量气体导入至腔室12中，增加了腔室12的供气量。
在某些实施方式中，遮挡片20包括与进气孔14的孔壁连接的连接部28。连接部28上开设有多个通孔282。通孔282连通进气孔14和腔室12。
由于遮挡片20转向气体时，有小部分的气体被转向至连接部28的方向，开设通孔282能够将这部分气体导入到腔室12中，避免了气体流失，增加了腔室12的供气量。
具体地，本发明实施方式中，通孔282有4个，且均匀设置在连接部 28上。
如此，提高了通孔282分流的效果。
当然，通孔282的个数不限于上述讨论的实施方式中的个数，而可以根据气体流量的大小和分气结构100的大小进行调整，以达到较佳的分气效果。
在某些实施方式中，分气结构100包括固定部11。固定部11连接遮挡片20和腔室12的底面124。
由于分气结构100在高温环境下工作，在高温环境下的遮挡片20容易发生形变，会影响分气结构100的分气效果。固定部11进一步加固了遮挡片20，保证了遮挡片20稳定设置在本体10上，不易形变，进而达到较佳的分气效果，提高了分气结构100的可靠度。
具体地，本发明实施方式中，固定部11和遮挡片20连接的部分、固定部11和腔室12的底面124连接的部分为三棱柱。
如此，由于三角形的稳定性较强，固定部11能较佳地将遮挡片20稳定固定在本体10上。
进一步地，固定部11的形状还可以是圆柱。
如此，圆滑的固定部11表面不会对进入分气结构100的燃气气流产生影响，进一步提高燃气气流在分气结构100内的平稳性。
在本发明实施方式中，分气结构100底部设置有定位件13，定位件13用于将分气结构100安装到燃烧器200上。
具体地，本发明实施方式中的定位件13有4个，呈长方形的四个顶点分布在凸出部144上。
在本发明实施方式中，分气结构100的侧壁上设置有承放部15，承放部15用于在安装分气结构100时使分气结构100放置更稳定。
在某些实施方式中，腔室12的内壁上设置有阶梯状的安装部122。安装部122用于安装火盖。
如此，火盖能较稳定地安装在分气结构100上，不会出现左右和向下的移位，以便分气结构100内的燃气在火盖处形成稳定的火焰。同时阶梯状的安装部122还能防止分气结构100内的燃气从安装部122和分气结构100之间的缝隙泄露，影响加热效果。
进一步地，在一个例子中，火盖可为中环火盖2043。
请参阅图5和图6，本发明实施方式的一种燃烧器200，包括如上任一实施方式的分气结构100。
本发明实施方式中的燃烧器200，燃气沿导流通道18进入腔室12，大大提高了燃气进入燃烧器200的气流速度和流畅度，使得燃气在燃烧器200外的燃烧更稳定。
具体地，在某些实施方式中，在分气结构100应用到燃烧器200时，分气结构100可作为燃烧器200内环的分气结构，腔室12内放置多孔陶瓷体2047，从分气结构100向外喷射的燃气燃烧，加热多孔陶瓷体2047，形成红外线煮食，实现了极小火、炭火慢炖等功能。
本发明实施方式的燃烧器200还包括底座202和上进风结构204。
底座202内形成有燃气进气间2022，底座底面设置有燃气进气通道2026，底座202上设置有接液盘2024，底座202和接液盘2024间隔设置形成第一空气补充通道206。上进风结构204内开设有第二空气补充通道208。上进风结构204上还设置有两个第一导气管2042。第一导气管2042伸入燃气进气间2022内。
上进风结构204上设置有燃气腔室。在本发明实施方式中，上进风结构204上的燃气腔室相当于外环燃气腔室2044。外环燃气腔室2044上安装有外环火盖2046。上进风结构204内还设置有中环燃气腔室2048，中环燃气腔室2048上设置有两个第二导气管2041，第二导气管2041伸入燃气进气间2022，中环燃气腔室2048上安装有中环火盖2043。分气结构100设置在中环燃气腔室2048内，分气结构100的腔室12作为内环燃气腔室2045。 内环燃气腔室2045内安装有多孔陶瓷体2047。
本发明实施方式的燃烧器200工作时，燃气从燃气进气通2026输入，通过设置在燃气进气通道2026上的其中喷嘴2028喷入燃气进气间2022，喷入的燃气在燃气进气间2022产生负压以从第一空气补充通道206吸入一次空气A，如图6所示，一次空气与燃气在燃气进气间2022预混形成混合气体并共同经过上进风结构204。一部分混合气体经第一导气管2042的导引进入外环燃气腔室2044，如A1所示，经外环火盖2046向外喷射、燃烧形成外环火。
在燃气进气间2022内的燃气与空气的另一部分混合气体经其中一个第二导气管2041的导引进入中环燃气腔室2048，如图6中线路A2所示，经中环火盖2043向外喷射，燃烧形成中环火。进入中环燃气腔室2048的混合气体的流动方向可参虚线A21所示。
在燃气进气间2022内的燃气与空气的再一部分混合气体经另外一个第二导气管2041的导引进入内环燃气腔室2045，经多孔陶瓷体2047向外喷射，燃烧形成红外线的内环火。进入内环燃气腔室2045的混合气体的流动方向可参虚线A22所示。
第二空气补充通道208可对中环火盖2043和多孔陶瓷体2047处的燃气燃烧时补充二次空气，和/或对外环火盖2046内侧的燃气燃烧时补充二次空气，二次空气经第二空气补充通道208进入燃烧灶具200内部并向上流动，进而实现补充二次空气。二次空气进入燃烧灶具200的气体的流动方向如图中带箭头的虚线B所示。
如此，燃烧器200通过第一导气管2042、第二导气管2041和分气结构100实现了三环火的燃烧器200，提高了燃烧器200的加热效率。
本发明实施方式的一种燃气灶具，包括如上实施方式的燃烧器200。
本发明实施方式中的燃气灶具，燃气沿导流通道18进入腔室12，大大提高了燃气进入燃气灶具的气流速度和流畅度，使得燃气在燃气灶具外的燃 烧更稳定。
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”、“轴向”、“径向”、“周向”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”的含义是两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；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“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，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”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例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例或示例中。在本说 明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (14)

  1. 一种分气结构，用于燃烧器，其特征在于，所述分气结构包括：
    本体，所述本体开设有腔室，所述腔室的底面开设有与所述腔室相通的进气孔，所述进气孔的孔壁包括导流面；
    位于所述进气孔中的遮挡片，所述遮挡片与所述导流面相对间隔设置并与所述导流面共同形成用于导引气体进入所述腔室的导流通道。
  2. 如权利要求1所述的分气结构，其特征在于，所述腔室的底面与所述遮挡片的顶面处于同一平面。
  3. 如权利要求1所述的分气结构，其特征在于，所述进气孔呈披针形，所述进气孔的中间较宽，从中间向两边逐渐变窄。
  4. 如权利要求1所述的分气结构，其特征在于，所述导流通道沿所述进气孔的进气方向呈渐扩的形状。
  5. 如权利要求1所述的分气结构，其特征在于，所述本体的底面形成向远离所述腔室方向凸出的凸出部，所述进气孔贯穿所述凸出部。
  6. 如权利要求1或4所述的分气结构，其特征在于，所述导流面呈弧形。
  7. 如权利要求6所述的分气结构，其特征在于，所述遮挡片包括遮挡片顶面、遮挡片底面和连接面，所述遮挡片顶面和所述遮挡片底面为平面，所述连接面连接所述遮挡片顶面和所述遮挡片底面，所述连接面呈弧形且与所述导流面形成所述导流通道。
  8. 如权利要求7所述的分气结构，其特征在于，所述遮挡片在所述导流通道上的正投影位于所述导流通道上。
  9. 如权利要求1所述的分气结构，其特征在于，所述遮挡片包括与所述进气孔的孔壁连接的连接部，所述连接部上开设有多个通孔，所述通孔连通所述进气孔和所述腔室。
  10. 如权利要求1所述的分气结构，其特征在于，所述分气结构包括固定部，所述固定部连接所述遮挡片和所述腔室的底面。
  11. 如权利要求1所述的分气结构，其特征在于，所述分气结构包括固定部，所述固定部连接所述遮挡片和所述腔室的底面。
  12. 如权利要求1所述的分气结构，其特征在于，所述腔室的内壁上设置有阶梯状的安装部，所述安装部用于安装火盖。
  13. 一种燃烧器，其特征在于，包括如权利要求1-12任一项所述的分气结构。
  14. 一种燃气灶具，其特征在于，包括如权利要求13所述的燃烧器。
PCT/CN2017/085217 2017-03-15 2017-05-19 分气结构、燃烧器和燃气灶具 WO2018166065A1 (zh)

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