WO2023151158A1 - 火排、燃烧器和燃气热水器 - Google Patents

火排、燃烧器和燃气热水器 Download PDF

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Publication number
WO2023151158A1
WO2023151158A1 PCT/CN2022/083134 CN2022083134W WO2023151158A1 WO 2023151158 A1 WO2023151158 A1 WO 2023151158A1 CN 2022083134 W CN2022083134 W CN 2022083134W WO 2023151158 A1 WO2023151158 A1 WO 2023151158A1
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WO
WIPO (PCT)
Prior art keywords
distribution
fire row
holes
fire
area
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PCT/CN2022/083134
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English (en)
French (fr)
Inventor
陈文风
黄官贤
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
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Publication of WO2023151158A1 publication Critical patent/WO2023151158A1/zh

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    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/0027—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using fluid fuel
    • 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
    • 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
    • F23D14/045—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 a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • 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
    • F23D14/10—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 elongated tubular burner head
    • F23D14/105—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 elongated tubular burner head with injector axis parallel to the burner head axis
    • 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
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • 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
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
    • 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
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • 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
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/103—Flame diffusing means using screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic
    • F23D2212/201—Fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2213/00—Burner manufacture specifications
    • 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

Definitions

  • the present application relates to the technical field of fluid heating equipment, in particular to a fire row, a burner and a gas water heater.
  • the burner is the core component of the gas water heater.
  • Existing gas water heater burners adopt fully premixed combustion technology, rich-lean combustion technology and water-cooled combustion technology in terms of low-NOx combustion technology, while the existing burner fire hole structure usually adopts a single-shaped fire hole structure, which is Due to the small area of the fire hole and the high strength of the burning fire hole, the performance of the flue gas emitted by the instantaneous combustion is not good, resulting in high nitrogen oxides, which cannot meet the performance requirements of low nitrogen emission.
  • the structure of the fire row is improved.
  • the main purpose of this application is to propose a fire row, which aims to solve the technical problem of relatively high nitrogen oxide content in the flue gas due to insufficient combustion of gas in the burner, which causes relatively large pollution to the environment.
  • this fire row comprises:
  • a ventilation channel is formed in the fire row body, and the top of the fire row body is provided with an air outlet communicating with the ventilation channel;
  • a diverter device is arranged on the top of the fire row body, the diverter device includes a cavity with an open top surface and a diverter part arranged in the cavity, the cavity communicates with the air outlet, and the diverter located above the air outlet; and
  • the combustion panel is arranged at the opening and above the splitter, and the combustion panel is a multi-layer metal mesh.
  • the splitter part is provided with a plurality of splitter holes, the plurality of splitter holes are arranged at intervals along the length direction of the splitter part, and the opening area of the plurality of splitter holes extends from the middle to both sides slowing shrieking.
  • the splitter includes a first splitter area and at least two second splitter areas, the at least two second splitter areas are respectively provided at both ends of the splitter in the longitudinal direction, and the first splitter area
  • the two splitter areas are arranged between the two first splitter areas; the first splitter area and the at least two second splitter areas are provided with split holes, and the openings of the first splitter areas The area is larger than the opening area of the at least two second flow distribution regions.
  • a plurality of first distribution holes are provided on the first distribution area, and the plurality of first distribution holes are arranged at intervals along the length direction of the distribution part.
  • a distribution rib is formed between any two adjacent first distribution holes; and at least two second distribution holes are provided on the distribution rib.
  • the inner wall of the first distribution hole is provided with a protrusion along the length direction of the distribution part.
  • a plurality of third flow holes are provided on the second flow distribution area, and the plurality of third flow distribution holes are arranged at intervals along the length direction of the flow distribution portion, and any two adjacent flow distribution holes Distributing ribs are formed between the third distributing holes; at least two fourth distributing holes are arranged on the distributing ribs.
  • At least one of the splitter ribs includes a first splitter wall and a second splitter wall inclined downwards, the bottom ends of the first splitter wall and the second splitter wall are connected, and the first splitter wall The distance between the divider wall and the second divider wall gradually increases outward from the junction of the first divider wall and the second divider wall.
  • a reinforcing rib is provided at the opening, and a plurality of the reinforcing ribs are arranged at intervals along the length direction of the opening, and the combustion panel is fixedly connected with the plurality of the reinforcing ribs.
  • At least one layer of metal mesh is bent to form a bent portion at an edge.
  • the present application also proposes a kind of burner, and described burner comprises aforementioned fire row, fire row body, diverter device and combustion panel, wherein, the ventilation channel is formed in described fire row body, and the top of described fire row body is provided with An air outlet communicated with the ventilation channel; a flow distribution device, which is arranged on the top of the fire row body, and the flow distribution device includes a cavity with an open top surface and a flow distribution part located in the cavity, and the cavity It communicates with the gas outlet; the splitter is located on the combustion panel above the gas outlet, is arranged at the opening, and is located above the splitter, and the combustion panel is a multi-layer metal mesh.
  • the present application also proposes a gas water heater.
  • the gas water heater includes the aforementioned burner.
  • the burner includes a fire row. channel, the top of the fire row body is provided with an air outlet communicating with the ventilation channel; the flow distribution device is arranged on the top of the fire row body; the flow distribution device includes a cavity with an open top surface and a The splitter in the cavity, the cavity communicates with the gas outlet; the splitter is located above the gas outlet, the combustion panel is arranged at the opening; it is located above the splitter; and the The combustion panel is a multi-layer metal mesh.
  • the technical proposal of the present application sets the top combustion panel as a multi-layer metal mesh to form the structure of the combustion panel, so that the fire hole area of the fire discharge crater is increased.
  • Preliminary diversion makes the air and gas further mixed, and then through the diversion and mixing of the multi-layer metal mesh combustion panel, a fully mixed gas is formed, and then a stable and uniform flame is formed above the combustion panel.
  • the heat load of the fire row is increased, which can increase the adaptability range, make the smoke emission performance of instantaneous combustion better, and then make the nitrogen oxides produced after combustion lower.
  • Fig. 1 is the structural representation of an embodiment of the fire row of the present application
  • Fig. 2 is a side view of Fig. 1;
  • Fig. 3 is A-A sectional view among Fig. 1;
  • Fig. 4 is another side view of Fig. 1;
  • Fig. 5 is a structural schematic diagram of the fire row body and the diverter part of Fig. 1;
  • Fig. 6 is a side view of Fig. 5;
  • Fig. 7 is B-B sectional view among Fig. 5;
  • Fig. 8 is another side view of Fig. 5;
  • Fig. 9 is a schematic structural diagram of Fig. 1;
  • Fig. 10 is a C-C sectional view in Fig. 9;
  • Fig. 11 is a side view of Fig. 9;
  • Fig. 12 is another side view of Fig. 9;
  • Fig. 13 is another side view of Fig. 9;
  • Fig. 14 is a schematic structural view of another embodiment of the fire platoon of the present application.
  • Figure 15 is a side view of Figure 14;
  • Fig. 16 is a D-D sectional view in Fig. 14;
  • Fig. 17 is a schematic structural view of an embodiment of the splitter in Fig. 16;
  • Figure 18 is a side view of Figure 17;
  • Figure 19 is another side view of Figure 17;
  • Fig. 20 is a schematic structural view of another embodiment of the splitter in Fig. 16;
  • Figure 21 is a side view of Figure 20;
  • Figure 22 is another side view of Figure 20;
  • Fig. 23 is a structural schematic diagram of another embodiment of the fire platoon of the present application.
  • Figure 24 is a cross-sectional view of E-E in Figure 23;
  • Fig. 25 is a schematic structural view of an embodiment of the burner of the present application.
  • Figure 26 is a perspective view of Figure 1;
  • Figure 27 is a perspective view of Figure 9;
  • Figure 28 is a perspective view of Figure 5;
  • Figure 29 is a perspective view of Figure 14;
  • FIG. 30 is a perspective view of FIG. 20 .
  • the flow distribution device of the burner in the related art is usually provided with a plurality of strip-shaped flow distribution holes of the same shape.
  • the overall flow area of the split device is small, resulting in a high pressure of the mixed gas flowing through the split device, and the combustion intensity of the mixed gas is too high during the combustion process, so that the mixed gas Incomplete combustion results in a higher content of nitrogen oxides formed during the combustion process.
  • processing a plurality of strip-shaped flow holes on the flow distribution device leads to a relatively complicated structure of the flow distribution device 200 , which has the disadvantages of high processing difficulty and low processing efficiency.
  • FIG. 3 shows a cross-sectional view of the fire row in FIG. 1
  • FIG. 2 shows a schematic diagram of the internal structure of the fire row in detail.
  • the fire row 10 includes a fire row body, a diverter device 200 and a combustion panel 230, wherein a ventilation channel is formed in the fire row body 100, so The top of the fire row body 100 is provided with an air outlet 120 communicating with the ventilation channel; the flow diversion device 200 is arranged on the top of the fire row body 100; the flow distribution device 200 includes a cavity 210 with an open top surface and The splitter part provided in the cavity 210, the cavity 210 communicates with the gas outlet 120; the splitter 220 is located above the gas outlet 110; the combustion panel 230 is arranged at the opening ; Located above the splitter 220 ; and the combustion panel 230 is a multi-layer metal mesh.
  • the burner 20 is one of the core components of the gas water heater
  • the fire row 10 is one of the core components of the burner 20.
  • the gas water heater burner 20 has a low nitrogen oxide combustion technology, and the structure of the fire row 10 plays an important role. to a key role.
  • the fire row 10 includes a fire row body 100 and a flow distribution device 200, and the flow distribution device 200 here is not to divide the actual fire, air and gas mixed air flow, and a ventilation channel is formed in the fire row body 100, said
  • the air passage includes an air inlet 110 and an air outlet 120.
  • the air inlet 110 is usually connected to an airflow source.
  • the airflow source includes air and gas.
  • the gas and air enter the air passage from the air inlet 110.
  • the pre-mixed gas flows out from the gas outlet 120 , fully mixed and divided in the flow splitting device 200 , and finally ignited above the flow splitting device 200 to form a stable and uniform flame.
  • the flow distribution device 200 includes a cavity 210 with an open top surface, a flow distribution part 220 and a combustion panel 230.
  • the flow distribution part 220 is provided with a flow distribution hole.
  • the gas port 120 flows out into the cavity 210 , then passes through the split hole of the splitter 220 and the split hole of the combustion panel 230 , and finally is ignited above the combustion panel 230 to form a stable and uniform flame.
  • the combustion panel 230 is set as a metal mesh, and the temperature at the combustion place is very high when the fuel is burned. In order to ensure the life of the combustion panel 230, the multi-layer metal mesh needs to be a high temperature resistant material.
  • the metal mesh is set in multiple layers, and the number of layers of the metal mesh is set to be related to the number of meshes of the multilayer metal mesh.
  • the number of layers of the mesh in the layered metal mesh is negatively correlated with the mesh number of the mesh, that is, the number of layers of the mesh with a large number of meshes is small, and the number of layers corresponding to a small mesh is large.
  • the number of layers of a multilayer metal mesh includes but It is not limited to 2 to 10 layers, specifically, it may be 2 layers, 3 layers, 5 layers, 8 layers or 10 layers.
  • Commonly used metal meshes range from 20 mesh to 100 mesh, which can be 20 mesh, 40 mesh, 50 mesh, 60 mesh, 80 mesh or 100 mesh. Considering that too many layers may lead to insufficient air supply, And the metal mesh with larger mesh is expensive. After testing and research, the optimal combination of multi-layer metal mesh is 50 mesh and 3 layers. In this way, a combustion panel 230 is provided on the top of the 10 fire rows. Since the combustion panel 230 is a multi-layer metal mesh structure, the area of the fire hole is increased, so that the instantaneous combustion exhaust gas performance is better, and nitrogen oxides can be reduced.
  • the use of the metal mesh fire hole structure has a flame-stabilizing effect, which can increase the thermal load combustion range of the fire row 10 single piece, and can solve the problem that the small load cannot be used at a low level, so that it can reduce the number of sections and structure
  • the utility model is simple, convenient to manufacture, low in cost, and can meet the use requirement of low nitrogen emission of the whole machine.
  • the edges of the opposite sides of each layer of metal mesh are bent to form a bent part, and tension will be generated at the bend, and the strength of the bent metal mesh will be higher. high.
  • the folded edge can be both sides in the width direction, or both sides in the length direction. From the perspective of effect, the bending tension at both ends of the length direction of the metal mesh is greater, and the strength of the metal mesh is also greater.
  • the bending part of each layer of metal mesh is connected to the bending part or mesh of another layer, and a gap is formed between the two layers of metal mesh of the bell, so that the airflow can flow through the multi-layer metal mesh The resistance is reduced to ensure sufficient airflow.
  • the fire row 10 includes two fire row single pieces, which are referred to as the first single piece and the second single piece below for convenience of description.
  • one of the manufacturing methods is to weld the multi-layer metal mesh on the top of the first single piece and the second single piece, and then flatten and fasten the first single piece and the second single piece to connect, so that the multi-layer The metal mesh is arranged in the main body of the fire row unit.
  • Another method is to first flatten and fasten the first single piece and the second single piece to form the fire row unit 100, then weld the multi-layer metal mesh to the top of the support base 270, and then weld the top of the support base 270 On the upper end of the fire platoon monomer 100, the edges are finally bounded. In this way, the combustion panel 230 is arranged outside the fire row unit 100 , which can prevent the fire row from flashing back to a certain extent, thereby improving the safety of the fire row 10 .
  • the fire grill body 100 can be manufactured by pressing riveting.
  • the fire row body includes two fire row 10 single pieces, which can be called A piece and B piece for convenience of description.
  • a piece and B piece for convenience of description.
  • stamping, injection molding or other means are performed on the A and B pieces to form them.
  • the third section of the fire row 10 Bending outwards to form about 60 °, also can be 30 °, 45 ° or 75 °, the single pieces of the formed A piece and B piece are pressed to form the fire row 10, and finally the edges are hemmed.
  • the present application discloses a fire row 10.
  • the fire row 10 includes a fire row body 100 and a diverter device 200.
  • a ventilation channel is formed inside the fire row body 100.
  • the air outlet 120 of the air outlet 120; the distribution device 200 is arranged on the top of the fire row body 100; the distribution device 200 includes a cavity 210 with an open top surface, a distribution part 220 and a combustion panel 230, and the cavity 210 is connected to the
  • the air outlet 120 communicates, and the combustion panel 230 is arranged at the opening; the flow diverter 220 is arranged in the cavity 210 and is located below the combustion panel 230; wherein, the combustion panel 230 is Multi-layer metal mesh.
  • the technical scheme of the present application changes the top combustion panel 230 from the original fire hole to the structure of the multilayer metal mesh to form the combustion panel 230, so that the fire hole area of the fire row 10 fire outlets is increased, and at the same time, in the combustion panel 230
  • a diverter 220 is provided below, which preliminarily diverts the concentrated airflow so that the air and gas are further mixed, and then after the diversion and mixing of the multi-layer metal mesh combustion panel 230, fully mixed gas is formed, and then, A stable and uniform flame is formed above the combustion panel 230 .
  • increasing the heat load of the fire row 10 can increase the range of adaptability, improve the smoke emission performance of instantaneous combustion, and further reduce the nitrogen oxides produced after combustion.
  • the splitter 220 includes a first splitter area 223 and at least two second splitter areas 224, and the at least two second splitter areas 224 are respectively provided at both ends of the longitudinal direction of the splitter 220, and the second splitter region 224 is arranged between the two first splitter regions 223; wherein, the opening area of the first splitter region 223 Greater than the opening area of the at least two second flow distribution regions 224 .
  • the first diversion area 223 and the second diversion area 224 with inconsistent diversion volumes are set, wherein the opening area of the first diversion area 223 located in the middle area is larger than the opening area of at least two second diversion areas 224 located on both sides It is beneficial to improve the combustion effect in the central area of the flow divider 220 by arranging the first flow divider region 223 with a larger opening area adjacent to the center region of the flow divider 220 .
  • the second diversion area 224 is set as two and respectively adjacent to the two ends of the length direction of the diversion part 220, it is beneficial for the fire row body 100 to be adjacent to each other.
  • the flames above the second diversion area 224 are passed between the ends of the fire row, thereby improving the ignition effect of multiple fire rows.
  • the first flow distribution area 223 is provided with a plurality of first flow distribution holes 223a, and the plurality of first flow distribution holes 223a are arranged at intervals along the length direction of the flow distribution portion 220; A distribution rib is formed between the distribution holes 223a; at least two second distribution holes 223b are provided on the distribution rib.
  • the diversion part 220 is mainly for preliminary treatment of flames, so that the area of the first diversion hole 223a can be set larger, thereby reducing the number of settings of the first diversion hole 223a, and at the same time, the two The distribution holes are separated by distribution ribs, and the second distribution holes 223b are arranged on the distribution ribs, which can further improve the uniformity of the flame.
  • the second flow distribution area 224 is set in the same principle as the distribution holes on the first flow distribution area 223, and the second flow distribution area 224 is provided with a plurality of third flow distribution holes 224a, and a plurality of the third flow distribution holes 224a 224a are arranged at intervals along the length direction of the distribution part 220, and a distribution rib is formed between two adjacent third distribution holes 224a; at least two fourth distribution holes 224b are provided on the distribution rib.
  • the two split holes are separated by split ribs, and the second split holes 223b are arranged on the split ribs, which can further improve the uniformity of the flames at both ends of the fire row 10 .
  • first distribution hole 223a and the second distribution hole 223b in the first distribution area 223, and the third distribution hole 224a and the fourth distribution hole in the second distribution area 224 The number and arrangement of 224b can be specifically set according to actual conditions.
  • the first distribution area 223 can only be provided with two first distribution holes 223a, and the first distribution holes 223a extend along the length direction of the distribution device 200 to form various Various holes;
  • the second flow area 224 domain can be provided with a plurality of third flow holes 224a, and the plurality of third flow holes 224a can be configured as various holes extending along the width direction of the flow distribution device 200 , and a plurality of second split holes 223b are arranged at intervals along the length direction of the split portion 220 .
  • the first flow hole 223a, the second flow hole 223b, the third flow hole 224a and the fourth flow hole 224b can be circular, square, strip and other regular or irregular shapes, the first flow hole 223a, the second flow hole The hole 223b, the third flow hole 224a and the fourth flow hole 224b are not limited, and can be adjusted according to the specific situation. Finally, the opening area of these holes can be matched according to the actual power requirements.
  • the first flow hole 223a, the fourth flow hole 224b The size of the opening area of the second flow hole 223b, the third flow hole 224a and the fourth flow hole 224b.
  • the splitter 220 includes a first splitter wall 225 a and a second splitter wall 225 b inclined downward, and the first splitter wall 225 a and the second splitter wall 225 b
  • the bottom ends of the second divider wall 225b are connected, and the distance between the first divider wall 225a and the second divider wall 225b is from the connection between the first divider wall 225a and the second divider wall 225b gradually increases outwards.
  • the middle part of the diverter part 220 is set to be pressed down. This design, combined with the diverter holes provided above, can make the air flow not only go up, but also go to both sides, so that the flame is more uniform.
  • the first split area 223 is provided with a plurality of first split holes 223a, and the plurality of first split holes 223a are along the length direction of the split portion 220 Distributing ribs are formed between two adjacent first distributing holes 223 a at intervals; the first distributing holes 223 a are provided with wavy protrusions 226 along the length direction of the distributing portion 220 .
  • the area of the single first distributing hole 223a is much larger than the area of the single first distributing hole 223a. In this way, the heat requirement of the central region can be met.
  • the first distributing hole 223a A distributing hole 223 a is provided with a wavy protrusion 226 along the length direction of the distributing portion 220 . These protrusions 226 can concentrate the flame towards the middle.
  • the splitter device 200 also includes a support seat sleeved outside the cavity 210 270, used for installing the combustion panel 230.
  • the combustion panel 230 is arranged on the support seat 270, and the design makes both sides raise some to protect the multi-layer metal mesh and prevent it from warping.
  • the fire row 10 works at the same time as When there are more than one, the mutual influence of flames between two adjacent fire rows 10 can be reduced.
  • an upwardly extending flame deflector 274 is provided on the support base 270, and the flame deflector 274 is located in the width direction of the combustion panel 230 on both sides. It can be understood that, in order to ensure the burning heat of the flame, the height of the flame deflector 274 should not be too high. In addition, it can be understood that, in order to ensure that the burner 20 has sufficient heat output, the height of the support seat 270 should not be too high, and the specific height data will not be expanded too much here.
  • a reinforcing rib 240 is provided at the opening.
  • a plurality of the reinforcing ribs 240 are arranged at intervals along the length direction of the opening, and the combustion panel 230 is fixedly connected with the plurality of reinforcing ribs 240 .
  • the connection between the combustion panel 230 and the plurality of reinforcing ribs 240 is usually welding, most commonly spot welding.
  • the reinforcing ribs 240 are set to prevent the metal mesh from softening and collapsing downwards. Therefore, the reinforcing ribs can be arranged above, in the middle or below the multi-layer metal mesh. Specifically, the reinforcing rib 240 is welded to the support seat 270 , or the reinforcing rib 240 is connected to the outer wall of the cavity 210 at the opening.
  • the support seat 270 includes two side plates that are interlocked and arranged, and the two side plates The plates are respectively provided with lateral convex hulls, and the lateral convex hulls are arranged at intervals along the length direction of the support seat 270; wherein, the lateral convex hulls include an inner convex hull 272 and at least two outer convex hulls 271; The inner convex hull 272 protrudes toward the cavity 210, and the at least two outer convex hulls 271 protrude toward the outside of the fire bar 10; the inner convex hull 272 is located on the at least two outer convex hulls 271 between.
  • the two side panels are respectively named as the first side panel and the second side panel for introduction:
  • first side plate and the second side plate are formed by interlocking each other, and a plurality of lateral protrusions are respectively provided along the length direction thereof, and the plurality of lateral protrusions are formed along the sides of the first side plate or the second side plate. Arranged at intervals along the length direction.
  • the lateral convex hull includes an inner convex hull 272 and at least two outer convex hulls 271; the inner convex hull 272 protrudes toward the cavity 210, and the direction of the protrusion 226 of the at least two outer convex hulls 271 is in line with the The protrusions 226 of the inner convex 272 are in opposite directions; thus, the design of the inner and outer convex 271 can firstly facilitate the positioning of the support seat 270 during installation, and secondly make a ventilation between the support seat 270 and the outer wall of the cavity 210. Channel, the outer convex hull 271 guarantees the secondary air intake channel between the fire row 10.
  • the convex hull of the first side plate and the lateral convex hull of the second side plate are arranged on the same side of the fire bar.
  • the body 100 is distributed symmetrically in the width direction.
  • first side plate and the second side plate are provided with an upwardly extending flame deflector 274; specifically, the flame deflector 274 can be formed by the first side plate and the second side plate
  • the top edge is formed by extending upward and outward along the vertical direction.
  • the present application also proposes a burner 20, which includes the aforementioned fire row 10, the specific structure of the fire row 10 refers to the above-mentioned embodiments, because the burner 20 adopts all the above-mentioned embodiments All the technical solutions at least have all the beneficial effects brought by the technical solutions of the above embodiments, and will not be described here one by one.
  • the burner 20 there may be multiple fire rows 10, and multiple fire rows 10 are arranged side by side. It can be understood that the number of the fire rows 10 is at least two, specifically, at least two of the first fire rows 10 are arranged parallel and juxtaposed. The increase in the quantity of the fire row 10 makes the area of the combustion interface correspondingly increased, which can play a role in rapid heating. If the burner 20 is applied in a gas water heater, the gas water heater can achieve the effect of instant heating of water.
  • the present application also proposes a gas water heater, which includes a burner.
  • a gas water heater which includes a burner.
  • this gas water heater adopts all the technical solutions of all the above-mentioned embodiments, it has at least the technology of the above-mentioned embodiments. All beneficial effects brought by the scheme will not be repeated here.

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Abstract

一种火排（10）、燃烧器（20）和燃气热水器，其中，该火排（10）包括火排本体（100）、分流装置（200）以及燃烧面板（230）。火排本体（100）内形成通气通道，火排本体（100）的顶部开设有与通气通道连通的出气口（120）。分流装置（200）设于火排本体（100）的顶部，分流装置（300）包括顶面敞口的腔体（210）、设于所述腔体（210）内的分流部（220），腔体（210）与出气口（120）连通。燃烧面板（230）设置在敞口处，位于分流部（220）的上方。在燃烧面板（230）的下方设置了分流部（220），将集中的气流进行了初步的分流，使得空气和燃气进一步混合，而后经过实质为多层金属网燃烧面板（230）的分流和混合后，形成了混合充分的燃气，而后，在燃烧面板（230）的上方形成稳定且均匀的火焰，使得燃气的燃烧更充分，进而使得燃烧后产生的氮氧化物更低。

Description

火排、燃烧器和燃气热水器
优先权信息
本申请要求于2022年2月14日申请的、申请号为202210135862.X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
本申请涉及流体加热设备技术领域，特别涉及一种火排、燃烧器和燃气热水器。
背景技术
在相关现有技术中，燃烧器是燃气热水器的核心部件。现有的燃气热水器燃烧器在低氮氧化物燃烧技术方面，有采用全预混的燃烧技术、浓淡燃烧技术和水冷燃烧技术，而现有燃烧器火孔结构通常采用单条形火孔结构，这种单条形火孔结构因火孔面积小，燃烧的火孔强度高，瞬间燃烧所排放的烟气性能不好，导致氮氧化物较高，不能满足低氮排放性能要求，因此有必要对其火排的结构进行改进。
发明内容
本申请的主要目的是提出一种火排，旨在解决由于燃烧器内燃气燃烧不充分，烟气含有的氮氧化物的含量比较高，对环境造成较大污染的技术问题。
为实现上述目的，本申请提出的火排，该火排包括：
火排本体，所述火排本体内形成通气通道，所述火排本体的顶部开设有与所述通气通道连通的出气口；
分流装置，设于所述火排本体的顶部，所述分流装置包括顶面敞口的腔体和设于所述腔体内的分流部，所述腔体与所述出气口连通，所述分流部位于所述出气口的上方；以及
燃烧面板，设置在所述敞口处，位于所述分流部的上方，且所述燃烧面板为多层金属网。
在一实施例中，所述分流部上设置有多个分流孔，所述多个分流孔沿所述分流部长度方向间隔排布，且所述多个分流孔的开孔面积从中间向两边逐渐减小。
在一实施例中，所述分流部包括第一分流区和至少两个第二分流区，所述至少两个第二分流区分别设于所述分流部的长度方向的两端，所述第二分流区设于两个所述第一分流区之间；所述第一分流区和所述至少两个第二分流区上均设有分流孔，并且，所述第一分流区的开孔面积大于所述至少两个第二分流区的开孔面积。
在一实施例中，所述第一分流区上设有多个第一分流孔，多个所述第一分流孔沿所述分流部的长度方向间隔排布。
在一实施例中，任意相邻的两个所述第一分流孔之间形成分流筋；所述分流筋上设有至少两个第二分流孔。
在一实施例中，所述第一分流孔的内壁沿所述分流部的长度方向上设有凸起。
在一实施例中，所述第二分流区上设有多个第三分流孔，多个所述第三分流孔沿所述分流部的长度方向间隔排布，任意相邻的两个所述第三分流孔之间形成分流筋；所述分流筋上设有至少两个第四分流孔。
在一实施例中，至少一个所述分流筋包括向下倾斜的第一分流壁和第二分流壁，所述第一分流壁和所述第二分流壁的底端相连，并且所述第一分流壁和所述第二分流壁之间的距离从所述第一分流壁和所述第二分流壁的连接处向外逐渐增大。
在一实施例中，所述敞口处设有加强筋，多个所述加强筋沿所述敞口的长度方向间隔排布，所述燃烧面板与多个所述加强筋固定连接。
在一实施例中，在所述多层金属网中，至少一层金属网的边缘弯折形成折弯部。
本申请还提出一种燃烧器，所述燃烧器包括前述的火排，火排本体、分流装置和燃烧面板，其中，所述火排本体内形成通气通道，所述火排本体的顶部开设有与所述通气通道连通的出气口；分流装置，设于所述火排本体的顶部，所述分流装置包括顶面敞口的腔体和设于所述腔体内的分流部，所述腔体与所述出气口连通；所述分流部位于所述出气口的上方燃烧面板，设置在所述敞口处，位于所述分流部的上方，且所述燃烧面板为多层金属网。
在一实施例中，所述火排的数量为多个，多个所述火排并列排布。
本申请还提出一种燃气热水器，该燃气热水器包括前述的燃烧器，所述燃烧器包括火排，该火排包括火排本体、分流装置和燃烧面板，其中，所述火排本体内形成通气通道，所述火排本体的顶部开设有与所述通气通道连通的出气口；分流装置，设于所述火排本体的顶部；所述分流装置包括顶面敞口的腔体和设于所述腔体内的分流部，所述腔体与所述出气口连通；所述分流部位于所述出气口的上方燃烧面板，设置在所述敞口处；位于所述分流部的上方；且所述燃烧面板为多层金属网。
本申请的技术方案通过将顶部燃烧面板设置成多层金属网形成燃烧面板的结构，使火排出火口的火孔面积增加，同时，在燃烧面板的下方设置了分流部，将集中的气流进行了初步的分流，使得空气和燃气进一步混合，而后经过实质为多层金属网燃烧面板的分流和混合后，形成了混合充分的燃气，而后，在燃烧面板的上方形成稳定且均匀的火焰。最后，使得火排的热负荷提高，可使适应性范围提高，使瞬间燃烧排放烟气性能更好，进而使得燃烧后产生的氮氧化物更低。
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为本申请火排一实施例的结构示意图；
图2为图1的一侧视图；
图3为图1中A-A剖视图；
图4为图1的另一侧视图；
图5为图1火排本体和分流部的结构示意图；
图6为图5的一侧视图；
图7为图5中B-B剖视图；
图8为图5的另一侧视图；
图9为图1的结构示意图；
图10为图9中C-C剖视图；
图11为图9的一侧视图；
图12为图9的另一侧视图；
图13为图9的又一侧视图；
图14为本申请火排另一实施例的结构示意图；
图15为图14的一侧视图；
图16为图14中D-D剖视图；
图17为图16中分流部一实施例的结构示意图；
图18为图17的一侧视图；
图19为图17的另一侧视图；
图20为图16中分流部另一实施例的结构示意图；
图21为图20的一侧视图；
图22为图20的又一侧视图；
图23为本申请火排又一实施例的结构示意图；
图24为图23中E-E的剖视图；
图25为本申请燃烧器一实施例的结构示意图；
图26为图1的立体图；
图27为图9的立体图；
图28为图5的立体图；
图29为图14的立体图；
图30为图20的立体图。
标号 名称 标号 名称
10 火排 20 燃烧器
100 火排本体 110 进气口
200 分流装置 120 出气口
210 腔体 220 分流部
230 燃烧面板 240 加强筋
223 第一分流区 224 第二分流区
223a 第一分流孔 224a 第三分流孔
223b 第二分流孔 224b 第四分流孔
225a 第一分流壁 225b 第二分流壁
225 分流筋 271 外凸包
272 内凸包 270 支撑座
274 导焰板 226 凸起
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(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)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，若全文中出现的“和/或”的含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。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。
相关技术中燃烧器的分流装置，通常设置有多个形状相同的条形分流孔。一方面，由于单个条形分流孔的面积较小，分流装置整体的流通面积较小，导致流经分流装置的混合气压强较大，混合气燃烧过程中的燃烧强度过高，从而使混合气未能充分燃烧，致使燃烧过程中所形成的氮氧化物的含量较高。另一方面，在分流装置上加工多个条形分流孔，导致分流装置200的结构较为复杂，存在加工难度大以及加工效率低的缺陷。
为了使通过燃气热水器中的燃气能够充分燃烧，以减少燃气热水器工作时所产生的氮 氧化物，本申请提出一种火排，请参照图1和图3，图1示出了本申请火排一实施例的主视图，图3展示出了图1中火排的剖视图，图2详细地展示了火排的内部结构示意图。
在本申请实施例中，如图1、图16和图24所示，该火排10包括火排本体、分流装置200和燃烧面板230，其中，所述火排本体100内形成通气通道，所述火排本体100的顶部开设有与所述通气通道连通的出气口120；分流装置200，设于所述火排本体100的顶部；所述分流装置200包括顶面敞口的腔体210和设于所述腔体210内的分流部，所述腔体210与所述出气口120连通；所述分流部220位于所述出气口110的上方；燃烧面板230，设置在所述敞口处；位于所述分流部220的上方；且所述燃烧面板230为多层金属网。
具体而言，燃烧器20又是燃气热水器的核心部件之一，火排10是燃烧器20的核心部件之一，燃气热水器燃烧器20在低氮氧化物燃烧技术方面，火排10的结构起到关键性作用。就火排10而言，火排10包括火排本体100和分流装置200，而这里的分流装置200不是分实际的火，空气和燃气混合的气流，火排本体100内形成通气通道，所述通气通道包括进气口110和出气口120，进气口110通常与气流源连接，气流源包括空气和燃气，燃气和空气从进气口110进入通气通道，燃气和空气在通气通道内进行了预混合，从出气口120流出口，在分流装置200内充分混合和分流，最后在在分流装置200的上方被点燃，而后形成稳定且均匀的火焰。
进一步地，分流装置200包括顶面敞口的腔体210、分流部220和燃烧面板230，所述分流部220上设有分流孔，燃气和空气在通气通道内进行了预混合后，从出气口120流出后进入所述腔体210内，然后分别经分流部220的分流孔和燃烧面板230的分流孔，最后在燃烧面板230的上方被点燃，而后形成稳定且均匀的火焰。
另外，在本申请的实施例中，为了提高火排10的热负荷，使其适应性范围提高，进而瞬间燃烧排放烟气性能更好，最后实现燃烧后产生的氮氧化物更低，所述燃烧面板230设为金属网，其中，燃料燃烧时燃烧处的温度很高，为了保证燃烧面板230的寿命，由此，所述多层金属网需是耐高温的材料。
其次，考虑到金属网的开孔面积较多，为了防止回火造成燃烧器20爆炸等事故，金属网设置为多层，金属网的层数设定与多层金属网的目数相关，多层金属网中网的层数和网的目数呈负相关，即目数多的金属网相应的层数少，目数少的相应层数多，例如，多层金属网的层数包括但不限于2～10层，具体可以是2层、3层、5层、8层或者10层。常用的金属网目数有20目至100目，具体可以是20目、40目、50目、60目、80目或者100目，考虑到过多的层数可能会导致气流的供应量不足，以及目数较大的金属网价格昂贵，经过测试研究，多层金属网优选的组合为50目和3层。如此，在火排10片顶部设有燃烧面板230，由于该燃烧面板230为多层金属网的结构，把火孔面积增大，使瞬间燃烧排放烟气性能更好，并可降低氮氧化物的产生，同时，采用金属网火孔结构有稳焰作用，可提高火排10单片的热负荷燃烧适应范围增大，可解决小负荷不能做低的使用问题，使其减少分段，结构简单，制造方便，成本低，并能满足整机低氮排放的使用要求。
进一步地，为了提高多层金属网的强度和提高火焰燃烧稳定性，每一层金属网相对两边的边缘弯折形成折弯部，折弯处会产生张力，折弯后的金属网的强度更高。在此，折边处可以是宽度方向的两边，也可以是长度方向的两边，从效果的角度上去考量，金属网长度方向的两端折弯的张力更大，金属网的强度也更大，同时，每层金属网的折弯部与另一层的折弯部或者网相接，并使得响铃的两层金属网之间形成有间距，这样设置，可以使得气流流经多层金属网的阻力减小，保证足够的气流。
可以理解的是，请参阅图3、图16和图24，火排10单包括两块火排单片，为方便描述下面称作第一单片和第二单片，在制作火排10的过程中，其中一种制造方法是，将多层金属网焊接在第一单片和第二单片的顶端，在将第一单片和第二单片压平扣合连接，这样，多层金属网设置在火排单体的主体内。另一种方法是，先将第一单片和第二单片压平扣合 形成火排单体100，然后将多层金属网与支撑座270的顶部焊接，再将支撑座270的顶部焊接在火排单体100的上端，最后进行边缘进行包边处理。这样，燃烧面板230设置在了火排单体100的外部，在一定程度上，可以防止火排回火，进而提高火排10的安全性。
另外，在制作火排本体100的过程中，可以通过压铆的方式制造火排本体100。火通常，排本体包括两块火排10单片，为方便描述，可称作A片和B片，在制作火排10单片时，先确定第一段和第二段的形状，最后确定第三段的形状，根据第一段、第二段和第三段的形成对A片和B片进行冲压、注塑或者其他手段，使之成型，在此过程，需要保证火排10第三段向外折弯形成约60°，也可以是30°、45°或者75°，将成型的A片和B片的单片进行压铆形成火排10，最后进行边缘进行包边处理。
本申请公开一种火排10，该火排10包括火排本体100和分流装置200，所述火排本体100内形成通气通道，所述火排本体100的顶部开设有与所述通气通道连通的出气口120；分流装置200设于所述火排本体100的顶部；所述分流装置200包括顶面敞口的腔体210、分流部220和燃烧面板230，所述腔体210与所述出气口120连通，所述燃烧面板230设置在所述敞口处；所述分流部220设于所述腔体210内，并且位于所述燃烧面板230的下方；其中，所述燃烧面板230为多层金属网。如此，本申请的技术方案通过将顶部燃烧面板230由原来的火孔改成多层金属网形成燃烧面板230的结构，使火排10出火口的火孔面积增加，同时，在燃烧面板230的下方设置了分流部220，将集中的气流进行了初步的分流，使得空气和燃气进一步混合，而后经过实质为多层金属网燃烧面板230的分流和混合后，形成了混合充分的燃气，而后，在燃烧面板230的上方形成稳定且均匀的火焰。最后，使得火排10的热负荷提高，可使适应性范围提高，使瞬间燃烧排放烟气性能更好，进而使得燃烧后产生的氮氧化物更低。
请参阅图1、图5、图17和图20，在一实施例中，所述分流部220包括第一分流区223和至少两个第二分流区224，所述至少两个第二分流区224分别设于所述分流部220的长度方向的两端，所述第二分流区224设于两个所述第一分流区223之间；其中，所述第一分流区223的开孔面积大于所述至少两个第二分流区224的开孔面积。
可以理解的是，由于火排10通常对中部区域的燃烧要求较高，两端对火焰的要求较低。故而设置了分流量不一致的第一分流区223和第二分流区224，其中，位于中部区域的第一分流区223的开孔面积要大于位于两边的至少两个第二分流区224开孔面积，通过将具有较大面积的开孔面积的第一分流区223邻近分流部220的中心区域设置，有利于提高分流部220的中心区域的燃烧效果。再者，针对由多个火排所构成的燃烧器，通过将第二分流区224域设为两个且分别邻近分流部220的长度方向的两端设置，有利于在相邻火排本体100的端部之间通过第二分流区224域上方火焰进行传递，从而提高了多个火排的引燃效果。
进一步地，所述第一分流区223上设有多个第一分流孔223a，多个所述第一分流孔223a沿所述分流部220的长度方向间隔排布；相邻两个所述第一分流孔223a之间形成分流筋；所述分流筋上设有至少两个第二分流孔223b。可以理解的是，在本实施例中，分流部220主要是初步处理火焰，如此，第一分流孔223a的面积可以设置的较大，从而减少第一分流孔223a的设置数量，同时，两个分流孔之间由分流筋分隔形成，在分流筋上设置第二分流孔223b，可以进一步提高火焰的均匀性。
另外，所述第二分流区224与第一分流区223上的分流孔设置的原理相同，所述第二分流区224上设有多个第三分流孔224a，多个所述第三分流孔224a沿所述分流部220的长度方向间隔排布，相邻两个所述第三分流孔224a之间形成分流筋；所述分流筋上设有至少两个第四分流孔224b。同时，两个分流孔之间由分流筋分隔形成，在分流筋上设置第二分流孔223b，可以进一步提高火排10上两端火焰的均匀性。
需要说明的是，以上仅为其中一些个实施，第一分流区223中的第一分流孔223a和第二分流孔223b，以及第二分流区224中的第三分流孔224a和第四分流孔224b的数量以及排列 方式可以根据实际情况具体设置，例如，第一分流区223可以仅设有两个第一分流孔223a，且第一分流孔223a沿分流装置200的长度方向延伸以形成各种各样的孔；第二分流区224域可以设有多个第三分流孔224a，且多个第三分流孔224a可以被构造为沿分流装置200的宽度方向延伸形成的各种各样的孔，且多个第二分流孔223b沿分流部220的长度方向间隔排列。
第一分流孔223a、第二分流孔223b、第三分流孔224a以及第四分流孔224b可以为圆形、方形、条形及其他规则或不规则的形状，第一分流孔223a、第二分流孔223b、第三分流孔224a以及第四分流孔224b均不做限制，可以依据具体的情况进行调整，最后，这些开孔面积可以根据实质的功率要求，进行匹配设计第一分流孔223a、第二分流孔223b、第三分流孔224a以及第四分流孔224b的开孔面积的大小。
请参阅图3、图7和图19，在上一实施例的基础上，所述分流部220包括向下倾斜的第一分流壁225a和第二分流壁225b，所述第一分流壁225a和所述第二分流壁225b的底端相连，并且所述第一分流壁225a和所述第二分流壁225b之间的距离从所述第一分流壁225a和所述第二分流壁225b的连接处向外逐渐增大。具体说来就是，是把分流部220的中部下压的设置，这样的设计，结合上面设置的分流孔，可以使得气流不仅往上走，同时也往两侧走，进而使火焰更均匀。
请参阅图20至22，在上一实施例的基础上，所述第一分流区223上设有多个第一分流孔223a，多个所述第一分流孔223a沿分流部220的长度方向间隔设置，相邻两个第一分流孔223a之间形成分流筋；所述第一分流孔223a沿所述分流部220的长度方向上设有波浪形的凸起226。
可以理解的是，与上一实施例相比，单个第一分流孔223a分流孔的面积远大于单个第一分流孔223a的面积，这样，可以满足中部区域对热量的要求，同时，所述第一分流孔223a沿所述分流部220的长度方向上设有波浪形的凸起226。这些凸起226可以将火焰向中部集中。
请参阅图1、图9至图11，在一较佳的实施例中，为了进一步提升火焰的稳定性和均匀性，所述分流装置200还包括套设在所述腔体210外的支撑座270，用于安装所述燃烧面板230。
具体地，设置支撑座270后，燃烧面板230设置在支撑座270上，这样设计使得两侧加高了一些可保护多层金属网，防止其起翘，另外，当该火排10同时工作为多个时，可以降低相邻两个火排10之间的火焰相互影响。其次，为了更进一步地减少相邻火排10之间的火焰相互影响，所述支撑座270上设有向上延伸的导焰板274，所述导焰板274位于所述燃烧面板230的宽度方向的两侧。可以理解的是，为了保证火焰燃烧的热度，导焰板274的高度不会太高。另外，可以理解的是，为了保证燃烧器20有足够的热量输出，支撑座270的高度也不宜太高，具体的高度数据在此不做过多的拓展。
请参阅图1、图4和图13，在一实施例中，考虑到多层金属网随着火焰燃烧的过程中，避免金属网软化向下塌陷，所述敞口处设有加强筋240，多个所述加强筋240沿所述敞口的长度方向间隔排布，所述燃烧面板230与多个所述加强筋240固定连接。具体地，所述燃烧面板230与多个所述加强筋240的连接方式通常是焊接，最常用的是点焊。
需要说明的是，加强筋240的设定是为了避免金属网软化向下塌陷，故而，加强筋的设置在多层金属网的上方、中间或者下方均可。具体地，所述加强筋240与所述支撑座270焊接，或者是所述加强筋240与所述敞口处的腔体210的外壁连接。
请参阅图1、图9和图12，在上一实施例的基础上，为了提高火排10的燃烧率，所述支撑座270包括相互扣合设置的两个侧板，两个所述侧板分别设有侧向凸包，所述侧向凸包沿所述支撑座270的长度方向间隔排布；其中，所述侧向凸包包括内凸包272和至少两个外凸包271；所述内凸包272凸向所述腔体210，所述至少两个外凸包271凸向所述火排10外侧；所述内凸包272的设于所述至少两个外凸包271之间。
为了方便描述介绍，两个侧板分别命名为第一侧板和第二侧板进行介绍：
具体的，第一侧板和第二侧板相互扣合形成，并且沿其长度方向分别设有多个侧向凸包，且多个侧向凸包沿第一侧板或第二侧板的长度方向间隔排列。所述侧向凸包包括内凸包272和至少两个外凸包271；所述内凸包272凸向所述腔体210，所述至少两个外凸包271的凸起226方向与所述内凸包272的凸起226方向相反；如此，内外凸包271的设计，首先可以方便支撑座270安装时的定位，其次使得支撑座270与所述腔体210的外壁之间形成了通风通道，外凸包271保证火排10间的二次进风通道。优选地，为了方便加工，以及多个火排10的同时使用的场景下，便于排布和安装，所述第一侧板的凸包与所述第二侧板的侧向凸包在火排本体100的宽度方向上对称分布。
另外，所述第一侧板和所述第二侧板设有向上延伸的导焰板274；具体地，所述导焰板274可以由所述第一侧板和所述第二侧板的顶边沿竖直方向向上外侧延伸形成。通过在所述第一侧板和所述第二侧板的顶边上设置导焰板274，可以对燃烧面板230处形成火焰起到导向的作用，以使侧焰朝向火排10单体的中心区域聚拢，有利于提高燃烧过程中热量的集聚效果。
请参阅图25，本申请还提出一种燃烧器20，该燃烧器20包括前述的火排10，该火排10的具体结构参照上述实施例，由于本燃烧器20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。
其中，为了满足更大的热量需求，在燃烧器20内，所述火排10的数量可以是多个，多个所述火排10并列排布。可以理解的是，所述火排10的数量为至少两个，具体地，至少两个所述第一火排10平行并列设置。火排10数量的增加使得燃烧界面的面积相应增加，可以起到迅速加热的作用。如果将该燃烧器20应用在燃气热水器中，燃气热水器可以达到即开即热的用水效果。
本申请还提出一种燃气热水器，该燃气热水器包括燃烧器，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可选实施例，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 (12)

  1. 一种火排，其中，所述火排包括：
    火排本体，所述火排本体内形成通气通道，所述火排本体的顶部开设有与所述通气通道连通的出气口；
    分流装置，设于所述火排本体的顶部，所述分流装置包括顶面敞口的腔体和设于所述腔体内的分流部，所述腔体与所述出气口连通，所述分流部位于所述出气口的上方；以及
    燃烧面板，设置在所述敞口处，位于所述分流部的上方，且所述燃烧面板为多层金属网。
  2. 如权利要求1所述的火排，其中，所述分流部上设置有多个分流孔，所述多个分流孔沿所述分流部长度方向间隔排布，且所述多个分流孔的开孔面积从中间向两边逐渐减小。
  3. 如权利要求1所述的火排，其中，所述分流部包括第一分流区和至少两个第二分流区，所述至少两个第二分流区分别设于所述分流部的长度方向的两端，所述第二分流区设于两个所述第一分流区之间；所述第一分流区和所述至少两个第二分流区上均设有分流孔，并且，所述第一分流区的开孔面积大于所述至少两个第二分流区的开孔面积。
  4. 如权利要求3所述的火排，其中，所述第一分流区上设有多个第一分流孔，多个所述第一分流孔沿所述分流部的长度方向间隔排布。
  5. 如权利要求4所述的火排，其中，任意相邻的两个所述第一分流孔之间形成分流筋；所述分流筋上设有至少两个第二分流孔。
  6. 如权利要求5所述的火排，其中，所述第一分流孔的内壁沿所述分流部的长度方向上设有凸起。
  7. 如权利要求6所述的火排，其中，所述第二分流区上设有多个第三分流孔，多个所述第三分流孔沿所述分流部的长度方向间隔排布，任意相邻的两个所述第三分流孔之间形成分流筋；所述分流筋上设有至少两个第四分流孔。
  8. 如权利要求5至7中任意一项所述的火排，其中，至少一个所述分流筋包括向下倾斜的第一分流壁和第二分流壁，所述第一分流壁和所述第二分流壁的底端相连，并且所述第一分流壁和所述第二分流壁之间的距离从所述第一分流壁和所述第二分流壁的连接处向外逐渐增大。
  9. 如权利要求1所述的火排，其中，所述敞口处设有加强筋，多个所述加强筋沿所述敞口的长度方向间隔排布，所述燃烧面板与多个所述加强筋固定连接。
  10. 如权利要求1所述的火排，其中，在所述多层金属网中，至少一层金属网的边缘弯折形成折弯部。
  11. 一种燃烧器，其中，所述燃烧器包括如权利要求1至10任意一项所述的火排；所述火排的数量为多个，多个所述火排并列排布。
  12. 一种燃气热水器，其中，所述燃气热水器包括如权利要求11所述的燃烧器。
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217302793U (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
CN218178877U (zh) * 2022-08-29 2022-12-30 芜湖美的智能厨电制造有限公司 火排、燃烧器和燃气热水器
CN116336469B (zh) * 2023-05-24 2023-08-18 杭州老板电器股份有限公司 一种流路系统、燃烧换热组件及燃气热水器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011214768A (ja) * 2010-03-31 2011-10-27 Chofu Seisakusho Co Ltd 低ＮＯｘバーナ及びそれを用いたガス給湯機
CN106871120A (zh) * 2017-03-31 2017-06-20 芜湖美的厨卫电器制造有限公司 燃烧器组件和具有其的燃气热水器
CN107917421A (zh) * 2016-10-10 2018-04-17 关隆股份有限公司 燃烧器
EP3343105A1 (en) * 2016-12-27 2018-07-04 Vaillant (Wuxi) Heating Equipment Co., Ltd. Burner units and gas-fired water heating appliance using the same
CN110500582A (zh) * 2019-08-29 2019-11-26 江苏闳业机械股份有限公司 一种出火均匀的燃烧火排
CN112113327A (zh) * 2020-05-26 2020-12-22 江苏叶茂厨卫科技有限公司 一种实现浓淡燃烧的火排、燃烧器及热水器
CN112856420A (zh) * 2021-03-25 2021-05-28 芜湖美的厨卫电器制造有限公司 火排、燃烧器及水加热设备
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

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311207A (ja) * 1989-06-08 1991-01-18 Matsushita Electric Ind Co Ltd 燃焼装置
JP4033071B2 (ja) * 2003-07-30 2008-01-16 株式会社ノーリツ 金属プレスバーナの製造方法
CN203628655U (zh) * 2013-10-21 2014-06-04 芜湖美的厨卫电器制造有限公司 稳焰燃烧器组件及热水器的燃烧器
CN203687036U (zh) * 2013-12-18 2014-07-02 芜湖美的厨卫电器制造有限公司 燃气热水器的燃烧器及燃气热水器
CN106016267B (zh) * 2016-07-07 2018-07-10 江苏叶茂厨卫科技有限公司 环保型浓淡燃烧器
TWI611146B (zh) * 2016-09-26 2018-01-11 Grand Mate Co Ltd 燃燒器
CN106322380A (zh) * 2016-10-13 2017-01-11 天津大学 一种新型稳焰燃烧器
CN106765085B (zh) * 2016-12-08 2022-10-21 宁波方太厨具有限公司 燃气热水器用燃烧器
CN107062218B (zh) * 2017-02-10 2018-09-18 艾欧史密斯(中国)热水器有限公司 燃烧器、燃气热水器及火排的加工方法
CN108980826A (zh) * 2017-06-05 2018-12-11 芜湖美的厨卫电器制造有限公司 燃烧器和具有其的燃气热水器
CN109990286B (zh) * 2017-12-29 2024-02-23 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器
CN209512009U (zh) * 2018-08-24 2019-10-18 威能(无锡)供热设备有限公司 燃烧器单元及包含该燃烧器单元的燃气热水设备
CN209131153U (zh) * 2018-09-10 2019-07-19 芜湖美的厨卫电器制造有限公司 燃烧器及具有其的燃气热水器
CN112066369B (zh) * 2019-06-10 2022-10-04 芜湖美的厨卫电器制造有限公司 燃烧器、壁挂炉及热水器
CN112254128A (zh) * 2019-07-22 2021-01-22 李贵祥 一种燃烧器
CN112443840A (zh) * 2019-08-30 2021-03-05 芜湖美的厨卫电器制造有限公司 燃烧器火排、燃烧器及热水设备
CN110594738A (zh) * 2019-10-23 2019-12-20 上海金巨源热能技术有限公司 一种二加一直线阵列火孔的燃烧器
CN111735206A (zh) * 2020-06-17 2020-10-02 樱花卫厨（中国）股份有限公司 家用燃气热水器燃烧器单体
CN214064905U (zh) * 2020-09-15 2021-08-27 江苏叶茂厨卫科技有限公司 一种浓淡燃烧火排、燃烧器及热水器
CN214307116U (zh) * 2020-12-17 2021-09-28 江苏叶茂厨卫科技有限公司 一种经济节约型浓淡燃烧火排、燃烧器和热水器

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011214768A (ja) * 2010-03-31 2011-10-27 Chofu Seisakusho Co Ltd 低ＮＯｘバーナ及びそれを用いたガス給湯機
CN107917421A (zh) * 2016-10-10 2018-04-17 关隆股份有限公司 燃烧器
EP3343105A1 (en) * 2016-12-27 2018-07-04 Vaillant (Wuxi) Heating Equipment Co., Ltd. Burner units and gas-fired water heating appliance using the same
CN106871120A (zh) * 2017-03-31 2017-06-20 芜湖美的厨卫电器制造有限公司 燃烧器组件和具有其的燃气热水器
CN110500582A (zh) * 2019-08-29 2019-11-26 江苏闳业机械股份有限公司 一种出火均匀的燃烧火排
CN112113327A (zh) * 2020-05-26 2020-12-22 江苏叶茂厨卫科技有限公司 一种实现浓淡燃烧的火排、燃烧器及热水器
CN112856420A (zh) * 2021-03-25 2021-05-28 芜湖美的厨卫电器制造有限公司 火排、燃烧器及水加热设备
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
CN217302793U (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
CN217356881U (zh) * 2021-03-25 2022-09-02 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
CN217503668U (zh) * 2021-03-25 2022-09-27 芜湖美的厨卫电器制造有限公司 火排、燃烧器和热水器
CN115127104A (zh) * 2021-03-25 2022-09-30 芜湖美的厨卫电器制造有限公司 火排及其制造方法、燃烧器和热水器

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