WO2019129282A1 - 燃烧器及燃气热水器 - Google Patents

燃烧器及燃气热水器 Download PDF

Info

Publication number
WO2019129282A1
WO2019129282A1 PCT/CN2018/125663 CN2018125663W WO2019129282A1 WO 2019129282 A1 WO2019129282 A1 WO 2019129282A1 CN 2018125663 W CN2018125663 W CN 2018125663W WO 2019129282 A1 WO2019129282 A1 WO 2019129282A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat resistant
fire
resistant mesh
mesh plate
hole
Prior art date
Application number
PCT/CN2018/125663
Other languages
English (en)
French (fr)
Inventor
孟宪超
陈文风
梁国荣
Original Assignee
芜湖美的厨卫电器制造有限公司
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.)
Filing date
Publication date
Application filed by 芜湖美的厨卫电器制造有限公司, 美的集团股份有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Publication of WO2019129282A1 publication Critical patent/WO2019129282A1/zh

Links

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
    • F23D14/02—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
    • F23D14/08—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 with axial outlets at the burner head
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • 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
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • 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
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14003—Special features of gas burners with more than one nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14064—Burner heads of non circular shape

Definitions

  • the present application relates to the technical field of water heaters, and in particular to a burner and a gas water heater.
  • the main purpose of the present application is to provide a burner and a gas water heater, which aims to solve the problem of low temperature of the combustion panel due to the low flame height of the burner and the direct transfer of the combustion temperature to the fire hole. The problem.
  • a burner according to the present application is configured as a gas water heater, comprising:
  • the fire row includes a fire-breathing portion, the fire-breathing portion includes a combustion panel, and the fire panel is provided with a fire hole;
  • a heat-resistant mesh plate disposed above the fire hole and spaced apart from the fire hole, so that after the gas and air of the fire hole are mixed, the fire trap after being ignited at the fire hole has a quenching effect, and the flame
  • the face is formed on the heat resistant mesh board.
  • the structure of the heat resistant mesh plate is configured such that a flame surface formed above the fire hole is located above the heat resistant mesh plate.
  • the heat resistant mesh plate is spaced apart from the combustion panel by at least 1 mm and not more than 2 mm; and the ratio of the aperture to the hole depth of the mesh of the heat resistant mesh plate is at least 1 and not more than 2.
  • the heat resistant mesh plate has a thickness of at least 1 mm and no more than 3 mm.
  • the mesh of the heat resistant mesh plate has a diameter of at least 0.3 mm and not more than 0.7 mm; or
  • the smallest mesh of the plurality of heat resistant mesh plates has a pore diameter of at least 0.5 mm and not more than 1 mm.
  • the heat resistant mesh panel has a porosity of at least 50%.
  • the heat resistant mesh panel has an elongation of at least 10%.
  • the heat resistant mesh plate can withstand a high temperature of greater than or equal to 800 ° C.
  • the heat resistant mesh plate is fixedly disposed on the combustion panel by a fixing member.
  • the heat resistant mesh plate is made of metal.
  • the heat resistant mesh plate is made of iron chromium aluminum metal.
  • the fire-spraying portion includes a mixing chamber, a pressure equalizing chamber, and a partition, the partition is disposed between the mixed pressure chamber and the pressure equalizing chamber, and the partition is opened
  • the hole is configured to communicate the mixing chamber and the pressure equalizing chamber, and the combustion chamber is disposed at an end of the pressure equalizing chamber away from the partition.
  • the fire hole is staggered with the through hole.
  • the fire hole and the through hole are both disposed in an elongated shape, and one of the fire hole and the through hole is laterally disposed, and the other is longitudinally disposed.
  • the fire row comprises an ejector, the ejector comprising a connecting plate and at least two ejector tubes disposed on the connecting plate, at least two of the ejector tubes and the mixed pressure The cavities are connected.
  • the present application further provides a gas water heater including a burner, the burner including a fire row, the fire row including a fire-breathing portion, the fire-breathing portion including a combustion panel, and the combustion panel Have a fire hole;
  • a heat resistant mesh plate disposed above the fire hole and spaced apart from the fire hole, the heat resistant mesh plate being configured to lift a flame surface formed above the fire hole.
  • the structure of the heat resistant mesh plate is configured such that a flame surface formed above the fire hole is located above the heat resistant mesh plate.
  • the heat resistant mesh plate is spaced apart from the combustion panel by at least 1 mm and not more than 2 mm; and the ratio of the aperture to the hole depth of the mesh of the heat resistant mesh plate is at least 1 and not more than 2.
  • the heat resistant mesh plate has a thickness of at least 1 mm and no more than 3 mm.
  • the mesh of the heat resistant mesh plate has a diameter of at least 0.3 mm and not more than 0.7 mm; or
  • the smallest mesh of the plurality of heat resistant mesh plates has a pore diameter of at least 0.5 mm and not more than 1 mm.
  • the heat resistant mesh panel has a porosity of at least 50%.
  • the heat resistant mesh panel has an elongation of at least 10%.
  • a single fire row is provided with a fire-breathing portion, the fire-breathing portion includes a combustion panel, gas and air enter the fire-breathing portion, and the cavity of the fire-spraying portion is a relatively closed space, gas and air After mixing in the chamber, the panel is ignited.
  • the application adopts the method of isolating the fire trap, and the heat-resistant mesh plate is arranged, the heat-resistant mesh plate is arranged above the fire hole, and is arranged at intervals from the fire hole, so that the flame has a quenching effect, and the gas and air are mixed and ignited at the fire hole.
  • the flame surface lift that is, the distance between the flame surface and the fire hole and the combustion panel becomes larger, thereby reducing the problem of heat accumulation near the fire hole, and avoiding problems such as deformation of the fire hole due to high temperature. Increased fire hole life.
  • FIG. 1 is a schematic structural view of an embodiment of a burner provided by the present application.
  • Figure 2 is a side elevational view of the burner of Figure 1;
  • Figure 3 is a top plan view of the burner of Figure 2;
  • Figure 4 is a bottom view of the burner of Figure 2;
  • Fig. 5 is a partially enlarged schematic view showing a portion I in Fig. 1.
  • the directional indication is only used to explain the relative positional relationship, the motion situation, and the like between the components in a certain posture, if the specific posture changes. Then, the directional indication also changes accordingly.
  • first”, “second”, etc. in the embodiments of the present application, the description of "first”, “second”, etc. is used for descriptive purposes only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the application provides a burner.
  • the burner is configured as a gas water heater.
  • the burner includes a fire row 1, the fire row 1 includes a fire-spraying portion 11, and the fire-spraying portion 11 includes a combustion panel.
  • the combustion panel 111 is provided with a fire hole 111a; the heat resistant mesh plate 2 is disposed above the fire hole 111a and spaced apart from the fire hole 111a, and the heat resistant mesh plate 2 is formed to be formed in the fire hole Lift on the flame above the 111a.
  • the fire trap After the gas and air of the fire hole 111a are mixed, the fire trap after being ignited at the fire hole 111a has a quenching effect, and the flame surface is lifted.
  • the fire hole 111a of the combustion panel 111 is ignited, and the flame surface is in direct contact with the fire hole 111a, so that heat is accumulated at the fire hole 111a, and the fire hole 111a is easily deformed due to high temperature, which is lowered. Fire hole 111a life.
  • the thickness of the material of the fire hole 111a is increased, or the heat of the bottom of the fire hole 111a is used to dissipate the heat, which is passive cooling and increases the material cost.
  • a single fire row 1 is provided with a fire-breathing portion 11, and the fire-breathing portion 11 includes a combustion panel 111, and gas and air enter the fire-breathing portion 11, because the cavity of the fire-spraying portion 11 is a In the enclosed space, the gas and air are ignited in the combustion panel 111 after being mixed in the chamber.
  • a heat-resistant mesh panel 2 is disposed in a manner of isolating the fire trap. The heat-resistant mesh panel 2 is disposed above the fire hole 111a and spaced apart from the fire hole 111a to cause a quenching effect of the flame, and the gas and the air are mixed in the fire hole.
  • the surface of the flame that has been ignited at 111a is raised, that is, the distance between the flame surface and the fire hole 111a and the combustion panel 111 becomes larger, thereby reducing the problem of heat accumulation near the fire hole 111a, avoiding the fire hole 111a.
  • the problem of deformation due to high temperature increases the life of the fire hole 111a.
  • the structure of the heat resistant mesh panel 2 is configured such that a flame surface formed above the fire hole 111a is located above the heat resistant mesh panel 2, and the heat resistant mesh panel 2 is configured to be configured.
  • the mesh size of the heat-resistant mesh plate 2 may be limited or set, or the heat-resistant mesh may be The distance between the plate 2 and the fire hole 111a is limited, or the size of the cavity between the heat-resistant mesh plate 2 and the combustion panel 111 can be realized.
  • the structure of 2 is configured such that the flame face formed above the fire hole 111a is located above the heat-resistant mesh plate 2, and thus, the embodiment is not limited in the invention.
  • the distance between the heat-resistant mesh plate 2 and the fire hole 111a is too small, the resistance to the flame is too large, and the heat-resistant mesh plate 2 is likely to block the flame upward; and the distance is too large, the flame and the heat-resistant mesh plate 2 cannot A quenching effect is produced.
  • the distance between the heat-resistant mesh plate and the combustion panel 111 is L, 1 mm ⁇ L ⁇ 2 mm, and the mesh is The aperture D and the hole depth H also have an effect on the elevation of the flame surface. In this embodiment, 1 ⁇ D / H ⁇ 2, so that the quenching effect of the fire flame can occur, and the flame surface formed above the fire hole 111a can be positioned above the heat-resistant mesh plate 2.
  • the thickness T of the heat-resistant mesh plate 2 is too thick, the resistance to the flame is also increased correspondingly, and is also disadvantageous for the discharge of the gas after combustion; and when the thickness T of the heat-resistant mesh plate 2 is too thin, it may result in The mesh of the heat-resistant mesh plate 2 is also relatively small, which will affect the quenching effect of the fire trap. Therefore, 1 ⁇ T ⁇ 3mm is more effective.
  • the heat-resistant mesh plate 2 may be a single layer or a plurality of layers, and the effect of the flame hardening effect is better.
  • the heat-resistant mesh plate 2 is a single layer, 0.3 mm ⁇ D ⁇ 0.7 mm;
  • the heat-resistant mesh plate 2 is a plurality of layers, the aperture of the smallest mesh in the plurality of heat-resistant mesh plates 2 is Dmin, and 0.5 mm ⁇ Dmin ⁇ 1 mm.
  • the multilayer heat-resistant stencil 2 is used, the multilayer heat-resistant stencil 2 is placed in an overlapping manner.
  • a three-layer heat-resistant stencil 2 is used, and the mesh of the three-layer heat-resistant stencil 2 is a square hole, the mesh of the first layer is 1 mm ⁇ 1 mm, and the mesh of the second layer is 1.5. Mm ⁇ 1.5 mm, the mesh of the third layer is 2 mm ⁇ 2 mm. In other embodiments, 4 layers, 5 layers, etc. may also be used, and round holes may also be used.
  • the porosity of the heat-resistant mesh plate 2 is ⁇ 50%, and the porosity will not produce a quenching effect, so the porosity of the heat-resistant mesh plate 2 is ⁇ 50%.
  • the heat-resistant mesh plate 2 has an elongation of ⁇ 10%. By using the heat-resistant mesh plate 2 having elasticity, it is not excessively deformed by heat, which affects the use effect. Since the combustion temperature of the gas is high, the heat-resistant temperature of the heat-resistant mesh plate 2 is greater than or equal to 800 ° C, and it is easy to be damaged due to excessive temperature.
  • the heat-resistant mesh plate 2 is fixed in a plurality of manners.
  • the heat-resistant mesh plate 2 is fixedly disposed on the combustion panel 111 by a fixing member.
  • the fixing member may be a support column or a gasket. Therefore, no specific limitation is imposed herein. .
  • the material of the heat-resistant mesh panel 2 is preferably metal, and it is also apparently applicable to a heat-resistant non-metal, such as a ceramic material or the like.
  • the heat resistant mesh plate 2 is made of iron chrome aluminum metal. Since the surface of the iron chrome aluminum has a small pore size, when the distance from the fire hole 111a is a predetermined distance, the flame surface is formed above the surface of the iron chrome aluminum, and the heat resistant stencil 2 of the iron chrome aluminum metal material has elasticity, and will not It is thermally deformed by heat and has a better effect.
  • the fire-spraying portion 11 includes a mixing chamber 112, a pressure equalizing chamber 113, and a partition 114.
  • the partition plate 114 is disposed between the mixing chamber 112 and the pressure equalizing chamber 113, and the partition plate 114 defines a through hole for communicating the mixing chamber 112 and the pressure equalizing chamber 113.
  • the combustion chamber 111 is disposed at one end of the pressure equalization chamber 113 away from the partition plate 114.
  • the gas is injected into the fire-spraying portion 11, the preliminary dispersion is obtained in the mixed pressure chamber, and then the through-holes in the partition plate 114 enter the pressure equalizing chamber 113, the pressure of the gas is equalized, and finally the gas is trapped in the pressure equalizing chamber 113. Dissipating again, the gas is uniformly and evenly distributed to each of the fire holes 111a on the gas panel to achieve the effect of equal pressure exhaust gas, and the gas ignited by the ignition needle is sufficiently uniformly burned, thereby causing the burner to form a uniform temperature field.
  • the partition 114 is disposed in parallel with the combustion panel 111.
  • the gas flow distribution at the combustion panel 111 is more uniform, that is, the pressure equalization effect is better, so that the ignited gas is sufficiently uniformly burned. It should be noted that if the partition plate 114 and the combustion panel 111 are not disposed in parallel, a certain pressure equalizing effect can be exerted.
  • the fire hole 111a opened in the combustion panel 111 and the through holes formed in the partition plate 114 are alternately arranged.
  • the staggered holes and the fire holes 111a are alternately arranged to contribute to the dispersion of the gas flow in the pressure equalizing chamber 113, so that the flow rate of the gas distributed to the respective fire holes 111a is more uniform, and the burner hole 111a is uniformly discharged.
  • the fire hole 111a and the through hole are both disposed in an elongated shape, and one of the fire hole 111a and the through hole is laterally disposed, and the other is longitudinally disposed. Since the angle formed by the opening direction of the fire hole 111a and the through hole is large, the gas forms a vortex in the pressure equalizing chamber 113, thereby promoting the pressure equalization. In addition, the gas is sub-divided and assisted by the elongated fire hole 111a, so that the gas formed by naturally blowing air through the gas is more uniform in mixing ratio, and the combustion intensity and stability are improved. Moreover, since the fire holes 111a are arranged in a dense manner, the burner can be caused to have a heat storage effect at a low combustion temperature to improve the stability of the low temperature flame.
  • the fire row 1 includes an ejector 12 including a connecting plate 121 and at least two ejector tubes 122 disposed on the connecting plate 121, at least two The ejector tube 122 is in communication with the mixing chamber.
  • the application also proposes a gas water heater comprising the burner of any of the above embodiments.
  • the specific structure of the burner is referred to the above embodiment. Since the gas water heater adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are not repeated herein. .

Landscapes

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

Abstract

一种燃烧器及燃气热水器。该燃烧器包括火排（1）以及耐热网板（2），火排（1）包括喷火部（11），喷火部（11）包括燃烧面板（111），燃烧面板（111）上设有火孔（111a），耐热网板（2）设置在火孔（111a）的上方且与火孔（111a）间隔设置，耐热网板（2）用以使得形成于火孔（111a）上方的火焰面上抬。燃气热水器包括该燃烧器。

Description

燃烧器及燃气热水器
本申请要求于2017年12月29日提交中国专利局、申请号为201711499380.8、名称为“燃烧器及燃气热水器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及热水器技术领域，特别涉及一种燃烧器及燃气热水器。
背景技术
目前，民用燃烧器已广泛应用于各个家庭中，例如燃气灶、燃气热水器等家庭用品，现有的热水器是一种以燃气为主要能源，提供生活热水的家用设备。
然而，燃气热水器中由于燃烧器的火焰高度较低，燃烧温度会直接传递给燃烧面板，这样燃烧面板表面温度积聚，可高达600-700℃，火孔尺寸因受热而变形，影响火孔寿命，现有技术中采用的是导热性能较好的铜将热量散发出去，但是这种被动降温，会增加材料成本。
申请内容
本申请的主要目的是提出一种燃烧器及燃气热水器，旨在解决现有技术中由于燃烧器的火焰高度较低，燃烧温度直接传递给火孔而造成燃烧面板表面温度积聚，被动散热成本大的问题。
为实现上述目的，本申请提出的一种燃烧器，配置为燃气热水器，包括:
火排，所述火排包括喷火部，所述喷火部包括燃烧面板，所述燃烧面板上设有火孔；
耐热网板，设置在所述火孔的上方且与所述火孔间隔设置，使所述火孔的燃气和空气混合后，在火孔处被点燃后的火陷发生淬息效应，火焰面在耐热网板之上形成。
可选地，所述耐热网板的结构被配置为使得形成于所述火孔上方的火焰面位于所述耐热网板的上方。
可选地，所述耐热网板与所述燃烧面板的间隔距离至少是1mm且不超过2mm；所述耐热网板的网孔的孔径与孔深之比至少是1且不超过2。
可选地，所述耐热网板的厚度至少是1mm且不超过3mm。
可选地，
所述耐热网板为单层时，所述耐热网板的网孔的孔径至少是0.3mm且不超过0.7mm；或者，
所述耐热网板为多层时，多层所述耐热网板中最小网孔的孔径至少是0.5mm且不超过1mm。
可选地，所述耐热网板的孔隙率至少是50%。
可选地，所述耐热网板的延伸率至少是10%。
可选地，所述耐热网板可耐高温大于或等于800℃。
可选地，所述耐热网板通过固定件固定设置在所述燃烧面板上。
可选地，所述耐热网板的材质为金属。
可选地，所述耐热网板的材质为铁铬铝金属。
可选地，所述喷火部包括混压腔、均压腔以及隔板，所述隔板设置在所述混压腔和所述均压腔之间，且所述隔板上开设有通孔用以连通所述混压腔和所述均压腔，所述均压腔远离所述隔板的一端设置有所述燃烧面板。
可选地，所述火孔与所述通孔交错设置。
可选地，所述火孔和所述通孔均设置呈长条形，且所述火孔和所述通孔其中之一横向设置，另一纵向设置。
可选地，所述火排包括引射器，所述引射器包括连接板和设置在所述连接板上的至少两个引射管，至少两个所述引射管与所述混压腔相连通。
基于同样的发明构思，本申请还提供一种燃气热水器，包括燃烧器，该燃烧器包括火排，所述火排包括喷火部，所述喷火部包括燃烧面板，所述燃烧面板上设有火孔；
耐热网板，设置在所述火孔的上方且与所述火孔间隔设置，所述耐热网板用以使得形成于所述火孔上方的火焰面上抬。
可选地，所述耐热网板的结构被配置为使得形成于所述火孔上方的火焰面位于所述耐热网板的上方。
可选地，所述耐热网板与所述燃烧面板的间隔距离至少是1mm且不超过2mm；所述耐热网板的网孔的孔径与孔深之比至少是1且不超过2。
可选地，所述耐热网板的厚度至少是1mm且不超过3mm。
可选地，
所述耐热网板为单层时，所述耐热网板的网孔的孔径至少是0.3mm且不超过0.7mm；或者，
所述耐热网板为多层时，多层所述耐热网板中最小网孔的孔径至少是0.5mm且不超过1mm。
可选地，所述耐热网板的孔隙率至少是50%。
可选地，所述耐热网板的延伸率至少是10%。
本申请提供的技术方案中，单个火排上设置有喷火部，喷火部包括燃烧面板，燃气和空气进入喷火部，由于喷火部的腔体为一较封闭的空间，燃气和空气在腔体内混合后在燃烧面板被点燃。本申请采用隔绝火陷的方式，设置耐热网板，耐热网板设置在火孔上方，且与火孔间隔设置，使火焰发生淬息效应，燃气和空气混合在火孔处被点燃后的火焰面上抬，也即火焰面与火孔和所述燃烧面板之间的距离变大，进而减小了火孔附近热量积聚的问题，避免了火孔因受高温而发生变形等问题，增加了火孔寿命。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请提供的燃烧器的一实施例的结构示意图；
图2为图1中燃烧器的侧视示意图；
图3为图2中燃烧器的俯视示意图；
图4为图2中燃烧器的仰视示意图；
图5为图1中I处的局部放大示意图。
附图标号说明：
标号 名称 标号 名称
1 火排 114 隔板
11 喷火部 12 引射器
111 燃烧面板 121 连接板
111a 火孔 122 引射管
112 混压腔 2 耐热网板
113 均压腔
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示，则该方向性指示仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其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至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提供一种燃烧器。请参照图1至图4，该燃烧器配置为燃气热水器，在本实施例中，该燃烧器包括火排1，所述火排1包括喷火部11，所述喷火部11包括燃烧面板111，所述燃烧面板111上设有火孔111a；耐热网板2设置在所述火孔111a的上方且与所述火孔111a间隔设置，耐热网板2用以使得形成于火孔111a上方的火焰面上抬。所述火孔111a的燃气和空气混合后，在火孔111a处被点燃后的火陷发生淬息效应，火焰面上抬。
在现有技术中，燃气和空气混合后在燃烧面板111的火孔111a点燃，火焰面与火孔111a直接接触，导致火孔111a处热量积累，火孔111a因受高温也容易变形，降低了火孔111a寿命。传统的解决方式中将火孔111a材料厚度增加，或火孔111a底部采用导热性能较好的铜将热量散发出去，属于被动降温，增加了材料成本。
而本申请提供的技术方案中，单个火排1上设置有喷火部11，喷火部11包括燃烧面板111，燃气和空气进入喷火部11，由于喷火部11的腔体为一较封闭的空间，燃气和空气在腔体内混合后在燃烧面板111被点燃。本申请采用隔绝火陷的方式，设置耐热网板2，耐热网板2设置在火孔111a上方，且与火孔111a间隔设置，使火焰发生淬息效应，燃气和空气混合在火孔111a处被点燃后的火焰面上抬，也即火焰面与火孔111a和所述燃烧面板111之间的距离变大，进而减小了火孔111a附近热量积聚的问题，避免了火孔111a因受高温而发生变形等问题，增加了火孔111a寿命。
可选地，所述耐热网板2的结构被配置为使得形成于所述火孔111a上方的火焰面位于所述耐热网板2的上方，要实现所述耐热网板2被配置为使得形成于所述火孔111a上方的火焰面位于所述耐热网板2的上方，可以通过设置对耐热网板2的网孔大小进行限定设置，也可以通过对所述耐热网板2与所述火孔111a之间的距离进行限定设置，亦或者，对所述耐热网板2与所述燃烧面板111中间的空腔大小等等均可以实现“所述耐热网板2的结构被配置为使得形成于所述火孔111a上方的火焰面位于所述耐热网板2的上方”，故而，在发明中对于具体实施方式不做限制。
具体地，由于耐热网板2与火孔111a的距离过小，则对火焰的阻力过大，容易因为耐热网板2堵塞火焰向上；而距离过大，火焰与耐热网板2无法产生淬息效应。为了提高火焰淬息效应的效果，在本实施例中，请参阅图5，所述耐热网板与所述燃烧面板111的间隔距离为L，1mm≤L≤2mm，并且，所述网孔的孔径D和孔深H，对所述火焰面的抬升也有影响，在本实施例中， 1≤D/H≤2，如此可以使火火焰发生淬息效应，可以实现形成于所述火孔111a上方的火焰面位于所述耐热网板2的上方。
进一步地，由于耐热网板2的厚度T过厚，对火焰的阻力也相应增大，同时也不利于燃烧后的气体的排放；而耐热网板2的厚度T过薄时，会导致耐热网板2的网孔也对应较小，会影响火陷发生淬息效应。故，1≤T≤3mm效果更佳。
耐热网板2可以为单层，也可以为多层，为使火焰淬息效应效果更佳，在所述耐热网板2为单层时，0.3mm≤D≤0.7mm；在所述耐热网板2为多层时，多层所述耐热网板2中最小网孔的孔径为Dmin，0.5mm≤Dmin≤1mm。采用多层耐热网板2时，将多层耐热网板2重叠放置。在本实施例中，采用三层耐热网板2，三层耐热网板2的网孔为方形孔，第一层的网孔为1mm×1mm，第二层的网孔为1.5 mm×1.5mm，第三层的网孔为2 mm×2mm。在其他实施例中，也可以采用4层、5层等，也可以采用圆孔。
在本实施例中，耐热网板2的孔隙率≥50%，孔隙率将无法产生淬息效应，故耐热网板2的孔隙率≥50%。
在本实施例中，所述耐热网板2的延伸率≥10%。通过采用具有弹性的耐热网板2，而不会因受热而过度变形，影响使用效果。由于燃气燃烧温度较高，因此，该耐热网板2的可耐高温温度大于或等于800℃，避免因温度过大而容易损坏。
该耐热网板2的固定方式很多，耐热网板2通过固定件固定设置在所述燃烧面板111上，固定件可以为支撑柱，也可以是垫片，故，在此不做具体限制。
为了保证耐热网板2受热后的稳定性，所述耐热网板2的材质优选为金属，显然对于耐热的非金属也同样适用，例如陶瓷材质等等。具体地，在本实施例中，为了提高淬息效果，所述耐热网板2的材质为铁铬铝金属。由于铁铬铝表面孔隙较小，在与火孔111a的距离为预设距离时，火焰面会在铁铬铝表面上方形成，且由于铁铬铝金属材质的耐热网板2具有弹性，不会受热而热变形，效果更好。
在本实施例中，为了使得火孔111a喷射出的燃烧，燃烧产生的热量更均匀，请参阅图2，该喷火部11包括混压腔112、均压腔113以及隔板114，所述隔板114设置在所述混压腔112和所述均压腔113之间，且所述隔板114上开设有通孔用以连通所述混压腔112和所述均压腔113。所述均压腔113远离所述隔板114的一端设置有所述燃烧面板111。燃气喷射入喷火部11后在混压腔内得到初步分散，然后经过隔板114上的通孔进入均压腔113的过程中，燃气的压力得到均衡，最后燃气在均压腔113内被再次打散，使得燃气充分均匀地分配至燃气面板上的每一个火孔111a，达到等压排流燃气的效果，被点火针点燃的燃气充分均匀燃烧，从而使得燃烧器形成均匀的温度场。
在本申请的优选实施方式中，所述隔板114与所述燃烧面板111平行设置。当隔板114和燃烧面板111平行设置时，燃烧面板111处的燃气流量分配更为均匀，也即均压效果更好，从而使得被点燃的燃气充分均匀燃烧。需要说明的是，如果隔板114和燃烧面板111不平行设置，也可以起到一定的均压效果。
所述燃烧面板111上开设的火孔111a和所述隔板114上开设的通孔交错设置。将通孔和火孔111a交错设置，有助于均压腔113中燃气气流的分散，从而使得分配至各火孔111a的燃气流量更加均匀，燃烧器火孔111a出流均匀。
所述火孔111a和所述通孔均设置呈长条形，且所述火孔111a和所述通孔其中之一横向设置，另一纵向设置。由于火孔111a和通孔的开设方向所成的夹角较大，燃气在均压腔113中形成涡流，从而促进了压力的均衡。另外，藉由长条形火孔111a给予燃气二次分流并助流，促使经由燃气自然吹混空气所成的燃气，其混合比更为均匀，提高喷燃强度与稳定性。而且，由于火孔111a排列较密，能促使燃烧器能在低燃温时发挥蓄热的效果，以提升低温火焰的稳定性。
作为本申请的一实施方式，该火排1包括引射器12，所述引射器12包括连接板121和设置在所述连接板121上的至少两个引射管122，至少两个所述引射管122与所述混压腔相连通。
本申请还提出一种燃气热水器，该燃气热水器包括如上述任一实施方式的燃烧器。该燃烧器的具体结构参照上述实施例，由于本燃气热水器采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (20)

  1. 一种燃烧器，配置为燃气热水器，其中，包括:
    火排，所述火排包括喷火部，所述喷火部包括燃烧面板，所述燃烧面板上设有火孔；以及，
    耐热网板，设置在所述火孔的上方且与所述火孔间隔设置，所述耐热网板用以使得形成于所述火孔上方的火焰面上抬。
  2. 如权利要求1所述的燃烧器，其中，所述耐热网板的结构被配置为使得形成于所述火孔上方的火焰面位于所述耐热网板的上方。
  3. 如权利要求1所述的燃烧器，其中，所述耐热网板与所述燃烧面板的间隔距离至少是1mm且不超过2mm；所述耐热网板的网孔的孔径与孔深之比至少是1且不超过2。
  4. 如权利要求1所述的燃烧器，其中，所述耐热网板的厚度至少是1mm且不超过3mm。
  5. 如权利要求1所述的燃烧器，其中，
    所述耐热网板为单层时，所述耐热网板的网孔的孔径至少是0.3mm且不超过0.7mm；或者，
    所述耐热网板为多层时，多层所述耐热网板中最小网孔的孔径至少是0.5mm且不超过1mm。
  6. 如权利要求1所述的燃烧器，其中，所述耐热网板的孔隙率至少是50%。
  7. 如权利要求1所述的燃烧器，其中，所述耐热网板的延伸率至少是10%。
  8. 如权利要求1所述的燃烧器，其中，所述耐热网板的材质为金属。
  9. 如权利要求8所述的燃烧器，其中，所述耐热网板的材质为铁铬铝金属。
  10. 如权利要求1所述的燃烧器，其中，所述喷火部包括混压腔、均压腔以及隔板，所述隔板设置在所述混压腔和所述均压腔之间，且所述隔板上开设有通孔用以连通所述混压腔和所述均压腔，所述均压腔远离所述隔板的一端设置有所述燃烧面板。
  11. 如权利要求10所述的燃烧器，其中，所述火孔与所述通孔交错设置。
  12. 如权利要求10所述的燃烧器，其中，所述火孔和所述通孔均设置呈长条形，且所述火孔和所述通孔其中之一横向设置，另一纵向设置。
  13. 如权利要求10所述的燃烧器，其中，所述火排包括引射器，所述引射器包括连接板和设置在所述连接板上的至少两个引射管，至少两个所述引射管与所述混压腔相连通。
  14. 一种燃气热水器，其中，包括燃烧器，配置为燃气热水器，所述燃烧器包括：
    火排，所述火排包括喷火部，所述喷火部包括燃烧面板，所述燃烧面板上设有火孔；以及，
    耐热网板，设置在所述火孔的上方且与所述火孔间隔设置，所述耐热网板用以使得形成于所述火孔上方的火焰面上抬。
  15. 如权利要求14所述的燃气热水器，其中，所述耐热网板的结构被配置为使得形成于所述火孔上方的火焰面位于所述耐热网板的上方。
  16. 如权利要求14所述的燃气热水器，其中，所述耐热网板与所述燃烧面板的间隔距离至少是1mm且不超过2mm；所述耐热网板的网孔的孔径与孔深之比至少是1且不超过2。
  17. 如权利要求14所述的燃气热水器，其中，所述耐热网板的厚度至少是1mm且不超过3mm。
  18. 如权利要求14所述的燃气热水器，其中，
    所述耐热网板为单层时，所述耐热网板的网孔的孔径至少是0.3mm且不超过0.7mm；或者，
    所述耐热网板为多层时，多层所述耐热网板中最小网孔的孔径至少是0.5mm且不超过1mm。
  19. 如权利要求14所述的燃气热水器，其中，所述耐热网板的孔隙率至少是50%。
  20. 如权利要求14所述的燃气热水器，其中，所述耐热网板的延伸率至少是10%。
PCT/CN2018/125663 2017-12-29 2018-12-29 燃烧器及燃气热水器 WO2019129282A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711499380.8A CN109990286B (zh) 2017-12-29 2017-12-29 燃烧器及燃气热水器
CN201711499380.8 2017-12-29

Publications (1)

Publication Number Publication Date
WO2019129282A1 true WO2019129282A1 (zh) 2019-07-04

Family

ID=67063209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/125663 WO2019129282A1 (zh) 2017-12-29 2018-12-29 燃烧器及燃气热水器

Country Status (2)

Country Link
CN (1) CN109990286B (zh)
WO (1) WO2019129282A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217302792U (zh) * 2021-03-25 2022-08-26 芜湖美的厨卫电器制造有限公司 火排、燃烧器和燃气热水器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240411A (en) * 1992-02-10 1993-08-31 Mor-Flo Industries, Inc. Atmospheric gas burner assembly
CN200961860Y (zh) * 2006-10-27 2007-10-17 严伟联 炉具燃烧器
CN206582843U (zh) * 2017-01-27 2017-10-24 黄婉平 一种燃气采暖热水炉的低氮氧化物燃烧器
CN207831350U (zh) * 2017-12-29 2018-09-07 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315729A (en) * 1978-03-02 1982-02-16 Matsushita Electric Industrial Co., Ltd. Gas burner
AT395774B (de) * 1991-04-04 1993-03-25 Vaillant Gmbh Heizeinrichtung
US5913675A (en) * 1997-06-09 1999-06-22 State Industries, Inc. Low NOx gas burner
AUPP793698A0 (en) * 1998-12-24 1999-01-28 Luminis Pty Limited Device to provide fluid mixing which is sensitive to direction and speed of external flows
KR100778716B1 (ko) * 2006-07-07 2007-11-22 주식회사 경동나비엔 가스버너의 염공부 구조
CN204693407U (zh) * 2015-05-11 2015-10-07 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN105483367B (zh) * 2015-12-04 2018-01-12 莱芜钢铁华威工程有限公司 一种烘干尘泥球的网带窑

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240411A (en) * 1992-02-10 1993-08-31 Mor-Flo Industries, Inc. Atmospheric gas burner assembly
CN200961860Y (zh) * 2006-10-27 2007-10-17 严伟联 炉具燃烧器
CN206582843U (zh) * 2017-01-27 2017-10-24 黄婉平 一种燃气采暖热水炉的低氮氧化物燃烧器
CN207831350U (zh) * 2017-12-29 2018-09-07 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器

Also Published As

Publication number Publication date
CN109990286B (zh) 2024-02-23
CN109990286A (zh) 2019-07-09

Similar Documents

Publication Publication Date Title
WO2019129282A1 (zh) 燃烧器及燃气热水器
WO2019154045A1 (zh) 燃烧室结构和燃气热水器
CN208328101U (zh) 一种立式化学气相沉积炉炉底加热装置
CN201024244Y (zh) 新型碳纤维生产用高温炉
CN208059578U (zh) 一种炉膛体保温结构
WO2012144766A2 (ko) 연소실 냉각장치 및 연소실 냉각 구조를 갖는 연소장치
WO2013073851A1 (ko) 적층판형 노통방식 보일러
CN220283902U (zh) 一种tft液晶玻璃窑炉烟道冷却结构
CN104962716A (zh) 燃气催化无焰近红外加热退火炉
CN210412508U (zh) 一种双蓄热钢包烧嘴
CN211695840U (zh) 一种辊道炉的气体预热结构
CN221403924U (zh) 一种煤焦油加热炉
CN218579656U (zh) 斯列普活化炉
CN219776303U (zh) 双管立式炉炉体加热系统的结构
CN216954050U (zh) 一种用于粉末冶金高温烧结炉保温结构
CN217785199U (zh) 一种锅炉受热面用节能陶瓷涂层结构
CN213747884U (zh) 应用于窑炉内层的新材料微孔绝热板
CN217560355U (zh) 一种高导热的燃气烧嘴砖体结构
CN219244242U (zh) 一种隔热工业炉
CN217503651U (zh) 一种便于布气的多孔介质燃烧器
CN214064938U (zh) 一种具有耐高温保温内衬的废气处理炉
CN220912007U (zh) 一种陶瓷纤维炉膛
CN213873191U (zh) 一种回风冷却式热风炉炉体结构
CN219121112U (zh) 看火孔装置及窑炉
CN211233374U (zh) 一种直燃式热风炉

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18895179

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18895179

Country of ref document: EP

Kind code of ref document: A1