WO2022007287A1 - Capuchon de brûleur d'un brûleur - Google Patents

Capuchon de brûleur d'un brûleur Download PDF

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Publication number
WO2022007287A1
WO2022007287A1 PCT/CN2020/128563 CN2020128563W WO2022007287A1 WO 2022007287 A1 WO2022007287 A1 WO 2022007287A1 CN 2020128563 W CN2020128563 W CN 2020128563W WO 2022007287 A1 WO2022007287 A1 WO 2022007287A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
combing
fire cover
burner
inner ring
Prior art date
Application number
PCT/CN2020/128563
Other languages
English (en)
Chinese (zh)
Inventor
苏勇杰
刘华荣
陈相权
潘叶江
Original Assignee
华帝股份有限公司
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.)
Filing date
Publication date
Application filed by 华帝股份有限公司 filed Critical 华帝股份有限公司
Publication of WO2022007287A1 publication Critical patent/WO2022007287A1/fr

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Classifications

    • 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
    • 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
    • F23D14/60—Devices for simultaneous control of gas and combustion air
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • 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
    • F23D14/68—Treating the combustion air or gas, e.g. by filtering, or moistening
    • 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
    • F24C3/085—Arrangement or mounting of burners on ranges

Definitions

  • the invention relates to the technical field of cookers, in particular to a combing gas device for a gas cooker.
  • the combustion system of a domestic gas stove is mainly composed of a burner head and a fire cover.
  • the premixed gas passes through the gas channel of the burner head to reach the fire cover and burns through the combustion holes.
  • Existing burners on the market have different gas speeds through the gas channel of the burner to reach the various positions of the fire cover, which will lead to inconsistent combustion flame states, affect the appearance, and even affect the combustion performance.
  • the existing burners usually do not have a structural design to reduce backfire and noise, and are prone to backfire and flameout noise, which affects the user experience.
  • the present invention aims to solve one of the problems existing in the related art at least to a certain extent.
  • the present invention proposes a burner fire cover, which can not only comb the gas, but also reduce backfire and noise, and improve the user experience. Use experience.
  • a kind of burner fire cover provided above, it is realized by the following technical solutions:
  • a burner fire cover includes a fire cover body, the fire cover body is provided with a downwardly open gas cavity and a plurality of main fire holes, the main fire holes are communicated with the gas cavity, and the fire cover also includes a gas cavity for reducing backflow.
  • a combing gas device for fire and noise reduction the combing gas device is arranged inside or at the opening of the gas cavity, and the combing gas device is provided with a plurality of inclined pores, and the pores communicate with the interior of the gas cavity and the opening. external.
  • the fire cover body and the gas cavity are annular structures;
  • the combing gas device includes a connecting part and a combing part, and the connecting part is respectively connected with the inner ring wall and the outer ring of the gas cavity.
  • the inner ring and the outer ring whose walls are abutted, the carding part is located between the inner ring and the outer ring; the aperture is arranged on the carding part.
  • the carding portion is provided with several guide fins distributed along the circumferential direction thereof, the guide fins are inclined on the horizontal plane, and a gap is formed between two adjacent guide fins. described pores.
  • the deflector is formed by partially punching and cutting the combing part and then folding it up or down, and the deflector is formed between each deflector and the combing part. porosity.
  • the number of the guide vanes is 60-80, and all the guide vanes are evenly distributed along the circumferential direction of the carding portion.
  • the angle ⁇ between the guide vane and the horizontal plane is 15° ⁇ 60°.
  • the connecting portion is provided with a positioning structure, and a limiting structure corresponding to the positioning structure is provided on the inner ring wall and/or the inner ring wall of the gas cavity, and the limiting structure is the same as that of the positioning structure.
  • the positioning structures are matched and clamped.
  • the carding portion is provided with a plurality of hollow protrusions with openings distributed along the circumference thereof, and the openings form the pores.
  • the hollowed-out protrusions are integrally punched outward from a part of the combing portion, and the edges of the hollowed-out protrusions are cut and separated from the carding portion to form the opening.
  • the protruding portion of the hollowed-out protrusion is an arc-shaped surface or a spherical surface that protrudes upward or downward.
  • the number of the hollowed-out protrusions is 60-80, and all the hollowed-out protrusions are evenly distributed along the circumferential direction of the carding portion.
  • the present invention at least includes the following beneficial effects: the gas combing device of the present invention has a simple and ingenious structure, and on the one hand, achieves the effect of combing the gas and changing the flow direction of the gas, and changing the gas from the burner head to achieve the effect of
  • the airflow path of the burner cover is conducive to the full and uniform mixing of gas and air, making the combustion more complete and improving the combustion conditions; on the other hand, it can reduce the probability of backfire, reduce the noise of flameout, and improve the user experience.
  • Figure 1 is a schematic structural diagram of the first combing gas device installed in a fire cover in Embodiment 1 of the present invention
  • Fig. 2 is a schematic exploded view of the structure of the first combing gas device and the fire cover in Embodiment 1 of the present invention
  • FIG. 3 is a top view of the first combing gas device in Embodiment 1 of the present invention.
  • FIG. 4 is a cross-sectional view of the first combing gas device in Embodiment 1 of the present invention.
  • Fig. 5 is a schematic structural diagram of the second combing part of the combing gas device in Embodiment 2 of the present invention.
  • Fig. 6 is a schematic structural diagram of the third combing part of the combing gas device in Embodiment 3 of the present invention.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements.
  • installed may be a fixed connection or a detachable connection , or integrally connected
  • it can be a mechanical connection or an electrical connection
  • it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements.
  • the specific meanings of the above terms in the present invention can be understood according to specific situations.
  • a burner fire cover includes a fire cover body 1.
  • the fire cover body 1 is provided with a downwardly opening gas cavity 101 and a plurality of main fire holes 102.
  • the main fire holes 102 communicate with the gas cavity 101. .
  • it also includes a combing gas device 2 for reducing tempering and noise.
  • the combing gas device 2 is arranged inside or at the opening of the gas cavity 101, and the combing gas device 2 is provided with a number of inclined pores 201 for gas to pass through, One end of the hole 201 is connected to the inside of the gas chamber 101, and the other end is connected to the outside of the gas chamber 101, so that the gas chamber 101 can communicate with the burner head through the hole 101.
  • the fire cover is prevented to a certain extent.
  • the gas outside the main body 1 is transmitted vertically downward from the gas cavity 101 to the inside of the burner head, so as to reduce the noise of tempering and flameout.
  • the gas is transmitted vertically upward from the burner head to the combing gas device 2, it is redistributed to achieve the effect of combing the gas, and when the gas flows through the pores 201, its flow direction will be bent, so that the flow path of the gas changes, Then it flows to the inside of the gas chamber 101 of the fire cover body 1, and finally flows out from the main fire hole 102 and burns.
  • the burner fire cover of the present embodiment has a simple and ingenious structure of the combing gas device 2 .
  • it achieves the effect of combing the gas and changing the gas flow direction, and changes the gas flow path from the burner burner head to the fire cover body 1 .
  • the combing gas device 2 can effectively prevent the gas from the outside of the fire cover body 1 from entering the burner head.
  • a plurality of pores 201 are arranged on the combing gas device 2 at uniform intervals along the circumferential direction, so that the combing gas device 2 can evenly distribute the gas, and at the same time, the flow rate of the combing gas reaching the main fire holes 102 is guaranteed to ensure the flow rate of each main fire hole 102. Consistent flow rate improves combustion conditions and flame stabilization.
  • the fire cover body 1 and the gas chamber 101 are annular structures
  • the combing gas device 2 includes a connecting portion 21 and a combing portion 22, and the connecting portion 21 is disposed in the gas chamber 101 and is an inner ring 211 and the outer ring 212, the inner ring 211 and the outer ring 212 are in contact with the inner ring wall and the outer ring wall of the gas chamber 101 respectively to prevent the gas from passing through the gap between the connecting part 21 and the ring wall of the gas chamber 101, and the connection is lifted. Air tightness between the part 21 and the ring wall of the gas chamber 101 .
  • the combing part 22 is arranged between the inner ring 211 and the outer ring 212, and the inner and outer sides of the combing part 22 are connected to the inner ring 211 and the outer ring 212 respectively.
  • the pores 201, through the connecting part 21, realize the connection of the combing parts 22, which makes the assembly and disassembly of the combing gas device 2 simpler and more convenient.
  • the combing gas device 2 can also be arranged at the opening of the gas chamber 101, that is, at the bottom of the fire cover body 1.
  • the upper end surfaces of the inner ring 211 and the outer ring 212 abut the gas chamber respectively.
  • the lower end face of the inner ring wall and the lower end face of the outer ring wall 101, the combing part 22 is arranged between the inner ring 211 and the outer ring 212, and the combing part 22 is provided with a hole 201 connecting the gas cavity 101 and the burner head.
  • the carding portion 22 is provided with several guide fins 23 distributed along its circumferential direction, the guide fins 23 are inclined on the horizontal plane, and pores 201 are formed between two adjacent guide fins 221.
  • the guide fins 221 are designed to be inclined on the horizontal plane, so that the guide fins 221 not only play a guiding role in the flow of gas, but also effectively prevent the gas from the outside of the fire cover body 1 from entering the interior of the burner head, thereby reducing The effect of tempering and flameout noise; on the other hand, any two adjacent baffles 23 form the opposite side walls of the same hole 201, so not only does it not need to open additional holes 201, it saves manufacturing processes, reduces manufacturing costs, and is conducive to improving the company's products competitiveness.
  • the number of guide vanes 23 is 60-80, and all the guide vanes 23 are evenly distributed along the circumferential direction of the carding portion 22, so as to ensure that the carding portion 22 has a high porosity, and improve the unit air intake rate and the air flow rate.
  • the gas combing effect is ensured, and the equidistant between two adjacent pores 201 is ensured, so that the gas flow rate of the outer fire cover body 1 is consistent, the uniform gas distribution effect is achieved, and the combustion working condition and flame stability are improved.
  • the inclination directions of all the guide vanes 23 are the same, so that the inclination directions of each hole 201 can be the same, so as to avoid the interference of the air flow out of the two adjacent holes 201, and achieve the mute effect.
  • the inside and outside of the guide vane 23 are fixedly connected to the inner ring 211 and the outer ring 212 respectively, and the angle ⁇ between the guide vane 23 and the horizontal plane is 15°-60°, so that the The included angle ⁇ between the central axis and the horizontal plane is 15°-60°, which can effectively ensure the blocking effect of the deflector 23 and each hole 201, even if the gas outside the fire cover body 1 is more difficult to enter through the combing part 22 To the inside of the burner burner head, to avoid tempering and flameout noise; in addition, when the gas flows vertically upward from the burner burner head and flows through the combing part 22, the flow direction is bent under the limitation of the guide plate 23 and the pores 201, Therefore, the gas flows into the gas chamber 101 in a direction not perpendicular to the horizontal plane. More preferably, the angle ⁇ between the guide vane 23 and the horizontal plane is 30° ⁇ 50°.
  • the number, inclination angle and shape of the baffles 23 can be adjusted according to the actual size of the fire cover body 11.
  • the guide vanes 23 can also be designed to be rotatably connected to the connecting portion 21, and each guide vane 23 can be rotated around the radial direction of the connecting portion 21, so that the inclination angle of each guide vane 23 can be adjusted according to the actual situation. At the same time, it can reduce the assembly precision requirements of the guide vane 23, reduce assembly difficulty and cost, and improve production efficiency and product competitiveness.
  • the height of the inner ring 211 is greater than the height of the outer ring 212
  • the height of the outer ring 212 is smaller than the height of the carding part 22 or the guide vane 23 in the vertical direction
  • the inner side wall of the outer ring 212 It is fixedly connected with the lower end of each guide vane 23, so that when the gas flows through the pores 201, it can flow out from the radial gap between the two adjacent guide vanes 23, which is not only beneficial to increase the distance between the pores 201 and the gas cavity 101
  • the contact area can also save the manufacturing materials of the outer ring 212 and reduce the manufacturing cost of the combing gas device 2 .
  • the connecting portion 21 is provided with a positioning structure 202, and a limiting structure 103 corresponding to the positioning structure 202 is provided on the inner ring wall and/or the inner ring wall of the gas chamber 101, and the The structure 103 cooperates with the positioning structure 202 and is clamped.
  • a positioning structure 202 is provided on the outer side wall of the outer ring 212 away from the inner ring 211
  • a positioning structure 202 is provided on the inner side wall of the inner ring 211 away from the outer ring 212 .
  • the ring walls are provided with limit structures 103 , so that the limit structures 103 and the positioning structures 202 are matched and clamped, so that the combing gas device 2 can be installed inside the gas chamber 101 more stably and reliably.
  • the positioning structure 202 is a positioning protrusion
  • four positioning protrusions are provided at circumferential intervals on the outer side wall of the outer ring 212 away from the inner ring 211
  • the inner side wall of the inner ring 211 away from the outer ring 212 is circumferentially spaced
  • Four positioning protrusions are provided.
  • the positioning protrusions located on the inner ring 211 and the positioning protrusions located on the outer ring 212 form a pair.
  • the limiting structure 103 is a limiting groove.
  • limiting grooves are respectively provided on the inner ring wall and the inner ring wall of the gas chamber 101, and the two limiting grooves form a pair in the same radial direction. Therefore, the connection between the combing gas device 2 and the gas chamber 101 is made more stable and reliable through the cooperation of the four pairs of positioning protrusions and the four pairs of limiting grooves.
  • the setting positions of the positioning protrusions may be reversed with the setting positions of the limiting grooves, and the number of the positioning protrusions and the limiting grooves may also be adjusted according to the actual situation.
  • the difference between this embodiment and Embodiment 1 is that the structure of the combing part 22 of the combing gas device is different.
  • the combing part 22 is a combing plate with an annular structure.
  • the combing plate is provided with a number of guide fins 23 distributed along its circumferential direction.
  • the guide fins 23 are arranged obliquely on the horizontal plane.
  • Pores 201 are formed between 221 .
  • the burner head reaches the air flow path of the fire cover body, which is conducive to the full and uniform mixing of the gas and the air, making the combustion more sufficient and improving the combustion conditions.
  • the gas combing plate and the deflector 23 can effectively prevent the gas from the outside of the fire cover body from entering the interior of the burner head, so as to achieve the purpose of reducing the probability of tempering and the noise of flameout, and improving the user experience.
  • the baffles 23 are formed by partially punching and cutting the air comb plate and then folded up or down, and a hole 201 is formed between each baffle plate 23 and the air comb plate. It can be seen that the structure of the carding portion 22 is simple, which not only facilitates the rapid processing and forming of the guide fins 23, but also saves the connection process between each guide fin 23 and the inner ring and the outer ring in Example 1, thereby improving production efficiency and reducing manufacturing cost.
  • the number of the guide fins 23 is 60-80, and all the guide fins 23 are evenly spaced along the circumferential direction of the comb plate, and all the guide fins 23 are inclined clockwise or counterclockwise. It is arranged to prevent the mutual interference of the gas flowing out from the two adjacent pores 201, and at the same time, it can also achieve uniform gas distribution, ensure that the gas flow rate of the fire cover body is consistent, improve the combustion stability, and achieve the effect of stabilizing the flame and reducing the combustion noise. .
  • the angle between the air guide plate 23 and the air combing plate is 15° ⁇ 60°, so that the limiting effect of the air combing plate and the air guiding plate 23 makes it more difficult for the gas outside the fire cover to pass through the combing part 22 Enter into the furnace head to avoid tempering and reduce flameout noise;
  • the gaps between the three edges of the deflector 23 and the comb gas plate constitute pores 201, which increases the unit gas outlet area and makes the gas distribution more uniform , to improve combustion sufficiency and flame stability.
  • the combing gas device of this embodiment has a simpler structure, which is more conducive to the rapid processing and forming of the combing part 22 of the combing gas device, and the assembly requirements of the combing part 22 are lower, which reduces the manufacturing difficulty and cost. , to further enhance the competitiveness of products.
  • the combing gas device can also omit the connecting parts (ie the inner ring and the outer ring) as described in Embodiment 1.
  • the connecting parts ie the inner ring and the outer ring
  • the combing part 22 When the combing part 22 is installed inside the gas cavity of the fire cover body, the The inner and outer sides of the gas chamber respectively abut on the inner and outer ring walls of the gas chamber as described in Embodiment 1.
  • the inner and outer sides of the combing portion 22 are provided with positioning structures.
  • the inner and outer ring walls of the gas chamber are correspondingly provided. There is a limit structure matched with the positioning structure and clamped.
  • the inner and outer sides of the top surface of the combing part 22 are in contact with the lower end surface of the inner ring wall and the lower end surface of the inner ring wall of the gas chamber respectively, and the combing part 22 is clamped in the Between the flame cover body and the burner head.
  • the difference between this embodiment and Embodiment 2 is that the structure of the combing part 22 of the combing gas device is different.
  • the combing part 22 is a combing plate with an annular structure.
  • Several hollow protrusions 203 with openings 204 are arranged on the combing plate along its circumferential direction.
  • the openings 204 form pores 201.
  • a hollowed-out protrusion 203 with an opening 204 is arranged on it, so that when the gas is transmitted vertically upward from the burner and flows through the hollowed-out protrusion 203, the flow path of the gas is changed under the limitation of the hollowed-out protrusion 203 so that the gas flow is not perpendicular to the horizontal plane.
  • the gas outlet flows into the gas cavity of the fire cover body; at the same time, when the gas outside the fire cover enters the gas cavity of the fire cover body, it is more difficult to enter the furnace head due to the blocking effect of the comb gas plate and the hollow protrusion 203. , so as to achieve the effect of reducing tempering and flameout noise.
  • the hollow protrusions 203 are integrally stamped outward from a part of the air comb plate, and the edges of the hollow protrusions 203 are cut and separated from the air comb plate to form openings 204, which facilitates the rapid prototyping of the hollow protrusions 203 and the pores 201.
  • the convex portion of the hollow protrusion 203 is an arc-shaped surface or a spherical surface that protrudes upward or downward.
  • the convex part of the hollow protrusion 203 is a spherical surface that protrudes upwards, so that the gas flow direction is bent at a larger angle, and at the same time, it is more difficult for the gas outside the fire cover to enter the inside of the burner head, so as to lift the gas flow. blocking effect.
  • the number of the hollow protrusions 203 is 60-80, and all the hollow protrusions 203 are evenly distributed along the circumferential direction of the air combing plate.
  • the convex part of the hollow protrusion 203 is an arc surface or a spherical surface, the blocking effect of the hollow protrusion 203 is better, which is beneficial to further reduce the noise of tempering and flameout;
  • the gas flow direction is changed from vertical upward to the circumferential direction of the combing plate, and flows out tangentially from the pores 201, so that the bending degree of the gas outlet direction is larger, and the gas outlet direction of the gas can be stabilized.
  • the combing gas device can also omit the connecting parts (ie the inner ring and the outer ring).
  • the inner and outer sides of the combing part 22 abut respectively, such as:
  • the inner and outer ring walls of the gas chamber described in Example 1, meanwhile, the inner and outer sides of the combing portion 22 are provided with positioning structures, and the inner ring wall and the inner ring wall of the gas chamber are correspondingly provided with clips matched with the positioning structures. connected limit structure.
  • the inner and outer sides of the top surface of the combing part 22 are in contact with the lower end surface of the inner ring wall and the lower end surface of the inner ring wall of the gas chamber respectively, and the combing part 22 is clamped in the Between the flame cover body and the burner head.

Abstract

La présente invention concerne également un capuchon de brûleur d'un brûleur, comprenant un corps de capuchon de brûleur (1) et un dispositif de cardage de gaz (2). Le corps de capuchon de brûleur (1) est pourvu d'une cavité de gaz (101) ouverte vers le bas et de multiples orifices de foyer principaux (102); les orifices de foyer principaux (102) sont en communication avec la cavité de gaz (101); le dispositif de cardage de gaz (2) est disposé dans la cavité de gaz (101) ou au niveau de l'ouverture de la cavité de gaz (101); le dispositif de cardage de gaz (2) comprend des parties de raccordement (21) et des parties de cardage (22); les parties de cardage (22) sont pourvues de plusieurs feuilles de guidage d'écoulement (23) réparties dans leur direction circonférentielle; les feuilles de guidage d'écoulement (23) sont disposées obliquement sur un plan horizontal; un pore (201) est formé entre deux feuilles de guidage d'écoulement (23) adjacentes. Le dispositif peut réduire le retour de flamme et réduire le bruit, ce qui permet d'obtenir un effet de cardage de gaz.
PCT/CN2020/128563 2020-07-06 2020-11-13 Capuchon de brûleur d'un brûleur WO2022007287A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010642557.0A CN111964058A (zh) 2020-07-06 2020-07-06 一种燃烧器火盖
CN202010642557.0 2020-07-06

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Publication Number Publication Date
WO2022007287A1 true WO2022007287A1 (fr) 2022-01-13

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CN (1) CN111964058A (fr)
WO (1) WO2022007287A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201858644U (zh) * 2010-10-09 2011-06-08 胡可嘉 一种燃烧器火盖
KR20120044616A (ko) * 2010-10-28 2012-05-08 공재철 휴대용 가스렌지의 헤드 구조
KR20130062499A (ko) * 2011-12-05 2013-06-13 (주) 아시안룩스 가스 버너
CN206989204U (zh) * 2016-12-26 2018-02-09 重庆宗华厨卫设备有限公司 一种燃气灶组合火盖
CN207146393U (zh) * 2017-09-15 2018-03-27 宁波方太厨具有限公司 二次空气开放的燃烧器
CN209180936U (zh) * 2018-12-06 2019-07-30 岑东尧 一种燃气炉头
KR200490050Y1 (ko) * 2019-01-25 2019-09-16 박찬필 화덕화염 보호장치
CN209944325U (zh) * 2018-12-31 2020-01-14 谈良知 防水供风系列燃烧器及多款高效富氧燃气灶
CN210624524U (zh) * 2019-09-20 2020-05-26 广东合创达电器科技有限公司 一种防回火爆燃的旋火燃烧器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201858644U (zh) * 2010-10-09 2011-06-08 胡可嘉 一种燃烧器火盖
KR20120044616A (ko) * 2010-10-28 2012-05-08 공재철 휴대용 가스렌지의 헤드 구조
KR20130062499A (ko) * 2011-12-05 2013-06-13 (주) 아시안룩스 가스 버너
CN206989204U (zh) * 2016-12-26 2018-02-09 重庆宗华厨卫设备有限公司 一种燃气灶组合火盖
CN207146393U (zh) * 2017-09-15 2018-03-27 宁波方太厨具有限公司 二次空气开放的燃烧器
CN209180936U (zh) * 2018-12-06 2019-07-30 岑东尧 一种燃气炉头
CN209944325U (zh) * 2018-12-31 2020-01-14 谈良知 防水供风系列燃烧器及多款高效富氧燃气灶
KR200490050Y1 (ko) * 2019-01-25 2019-09-16 박찬필 화덕화염 보호장치
CN210624524U (zh) * 2019-09-20 2020-05-26 广东合创达电器科技有限公司 一种防回火爆燃的旋火燃烧器

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