WO2023151159A1 - Fire grate, burner and gas water heater - Google Patents
Fire grate, burner and gas water heater Download PDFInfo
- Publication number
- WO2023151159A1 WO2023151159A1 PCT/CN2022/083141 CN2022083141W WO2023151159A1 WO 2023151159 A1 WO2023151159 A1 WO 2023151159A1 CN 2022083141 W CN2022083141 W CN 2022083141W WO 2023151159 A1 WO2023151159 A1 WO 2023151159A1
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- Prior art keywords
- fire row
- fire
- distributing
- holes
- area
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 83
- 239000002184 metal Substances 0.000 claims abstract description 50
- 238000009826 distribution Methods 0.000 claims description 61
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 27
- 239000000178 monomer Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
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- 229910052757 nitrogen Inorganic materials 0.000 description 4
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- 238000003466 welding Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000002596 correlated effect Effects 0.000 description 1
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Images
Classifications
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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 unit, and the top of the fire row unit is provided with an air outlet communicating with the ventilation channel;
- the supporting seat is sleeved on the upper end of the fire row unit, and a mixing chamber is formed in the supporting seat, and the mixing chamber communicates with the air outlet.
- the upper part of the mixing chamber forms an opening, and the opening corresponds to said air outlet arrangement;
- the combustion panel is arranged at the opening, and the combustion panel is a multi-layer metal mesh.
- a splitter part integrally formed with the fire row unit is formed at the air outlet, and a plurality of splitter holes are arranged on the splitter part, and the plurality of splitter holes are arranged along the The longitudinal direction is arranged at intervals, and the opening area of the plurality of distribution holes gradually decreases from the middle to both sides.
- a splitter part integrally formed with the fire row unit is formed at the air outlet, and the splitter part includes a first splitter area and at least two second splitter areas, and the at least two second splitter areas
- the two diverging areas are respectively arranged at both ends of the longitudinal direction of the splitting part, and the second splitting area is arranged between the two first splitting areas; the first splitting area and the at least two second splitting areas Distributing holes are provided on all the diverging areas, and the opening area of the first distributing area is larger than the opening area of the at least two second distributing areas.
- the first distribution area is provided with a plurality of first distribution holes, and the plurality of first distribution holes are arranged at intervals along the length direction of the fire row; any adjacent two of the Distributing ribs are formed between the first distributing holes; at least two second distributing holes are arranged on the distributing ribs.
- the second distribution area is provided with a plurality of third distribution holes, the plurality of third distribution holes are arranged at intervals along the length direction of the fire row, and any two adjacent 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.
- the support seat includes two side plates interlocked with each other, and the two side plates are respectively provided with lateral protrusions arranged at intervals along the length direction of the support seat.
- the lateral protrusions include an inner protrusion and at least two outer protrusions; the inner protrusion protrudes toward the mixing chamber, and the at least two outer protrusions protrude toward the fire row the outer side; and the inner convex hull is disposed between the at least two outer convex hulls.
- the opening is further provided with reinforcing ribs fixedly connected with the combustion panel, and a plurality of the reinforcing ribs are arranged at intervals along the length direction of the fire row.
- At least one layer of metal mesh is bent to form a bent portion at an edge.
- the support seat is further provided with upwardly extending flame deflectors, and the flame deflectors are arranged on both sides of the combustion panel in the width direction.
- the present application also proposes a burner, the burner includes the aforementioned fire row, and the fire row includes a fire row unit, a support seat and a combustion panel, wherein a ventilation channel is formed in the fire row unit, and the fire row
- a ventilation channel is formed in the fire row unit, and the fire row
- the top of the row monomer is provided with an air outlet that communicates with the ventilation channel; the support seat is sleeved on the upper end of the fire row monomer; a mixing chamber is formed in the support seat, and the mixing chamber communicates with the outlet.
- the upper part of the mixing chamber forms an opening, and the opening is set corresponding to the air outlet; the combustion panel is arranged at the opening; 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, and the fire row includes a fire row unit, a support seat and a combustion panel, wherein the fire row unit forms a Air passage, and the top of the fire platoon monomer is provided with an air outlet communicating with the air passage; the support seat is sleeved on the upper end of the fire platoon monomer; a mixing chamber is formed in the support seat, so The mixing chamber communicates with the air outlet, the upper part of the mixing chamber forms an opening, and the opening is set corresponding to the air outlet; the combustion panel is arranged at the opening; and the combustion panel is multiple layer of metal mesh.
- the technical scheme of the present application changes the top combustion panel from the original structure with fire holes on the combustion panel to a structure in which a multi-layer metal mesh forms the combustion panel.
- This arrangement can reduce the air pressure intensity in the fire row, thereby reducing the combustion The heat intensity per unit area at the panel.
- the combustion panel in the form of multi-layer metal mesh increases the fire hole area of the fire discharge port, so that the airflow that has been initially mixed is further mixed with the air at the combustion panel after it comes out of the combustion panel, forming a well-mixed The gas, finally, creates a steady and uniform flame above the combustion panel.
- the metal mesh fire hole structure has the effect of stabilizing the flame, which can improve the thermal load combustion range of the single piece of the fire row, and can solve the problem that the small load cannot be lowered, so that it can reduce the segmentation, simple structure, convenient manufacture, and low cost , and can meet the use requirements of low nitrogen emission of the whole machine.
- 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 the structural schematic view of Fig. 1 fire row monomer and splitter
- 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 view of the support seat in 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 .
- label name label name 10 fire row 20 burner 100 fire platoon monomer 110 air intake 220 Branch 120 air outlet 210 mixing chamber 226 protruding 230 burning panel 240 Rib 223 first diversion area 224 second diversion area 223a first split hole 224a third orifice 223b second split hole 224b
- the fourth split hole 225a first dividing wall 225b second divider wall 225 Shunt Rib 271 convex hull 272 Inner convex hull 270 Support base 274 flame deflector the the
- 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, which has the defects 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 unit 100, a support seat 270 and a combustion panel 230, wherein a ventilation channel is formed in the fire row unit 100, and the fire row
- the top of row monomer 100 is provided with the air outlet 120 that is communicated with described ventilation passage;
- Support seat 270 is sleeved on the upper end of described fire row monomer 100;
- the cavity 210 communicates with the gas outlet 120, and the upper part of the mixing chamber 210 forms an opening, and the opening is arranged corresponding to the gas outlet 120;
- the combustion panel 230 is arranged at the opening; and the combustion panel 230 It is a multi-layer metal mesh.
- the application also proposes a fire row, please refer to Figure 23 and Figure 24,
- Figure 23 shows a front view of an embodiment of the fire row of the application, and
- Figure 24 shows a cross-sectional view of the fire row in Figure 23.
- the fire row unit 10 includes a fire row unit 100 and a combustion panel 230, wherein the fire row unit 100 is formed by the first fire row unit 100
- the row single piece and the second fire row single piece are buckled to form; the top of the fire row monomer 100 forms a cavity 210 with an open top surface; the combustion panel 230 is arranged at the opening, 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, wherein, when the burner 20 of the gas water heater realizes low-nitrogen combustion, the structure of the fire row 10 play a key role.
- the fire row 10 includes a fire row unit 100, a support seat 270 and a combustion panel 230, wherein a ventilation passage is formed in the fire row unit 100, and the ventilation passage includes an air inlet 110 and an outlet.
- the air inlet 120, the air inlet 110 is usually connected with the airflow source, the airflow source includes air and gas, the gas and air enter the ventilation channel from the air inlet 110, the gas and air are pre-mixed in the ventilation channel, and then, from the air outlet 120 flow out, and then flow out from the air outlet 120, and then pass through the mixing chamber 210 in the support seat 270 for further mixing, and finally realize sufficient flow splitting at the combustion panel 230, which is essentially a multi-layer metal mesh, and finally be drawn above the combustion panel 230 Ignite, then form a stable and uniform flame.
- the support seat 270 set in this embodiment is sleeved on the upper end of the fire row unit 100; a mixing chamber 210 is formed in the support seat 270, and the mixing chamber 210 communicates with the air outlet 120, and the mixing chamber 210
- the upper part of the cavity 210 forms an opening, and the opening is arranged corresponding to the air outlet 120; the combustion panel 230 is arranged at the opening.
- 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, in order to ensure that the burner 20 has sufficient heat output, the height of the support seat 270 should not be too high. The specific height can be measured according to the actual product power, and there are no excessive restrictions here.
- the combustion panel 230 is made of metal mesh, which can also increase the heat load of the fire row 10, improve its adaptability range, and furthermore, the performance of instantaneous combustion and emission of smoke is better, and finally the combustion can be realized.
- the resulting nitrogen oxides are lower.
- 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 mesh number of the multilayer metal mesh , the number of layers of the mesh in the multilayer metal mesh is negatively correlated with the mesh number of the mesh, that is, the number of layers corresponding to 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 Including but not limited to 2 to 10 layers, specifically 2, 3, 5, 8 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 ends of at least one layer of metal mesh are bent to form a bent portion, and tension will be generated at the bend , the strength of the bent metal mesh is higher.
- 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 corresponding metal mesh is also stronger. big.
- connect the bent part with another layer of bent part or mesh and form a gap between adjacent two layers of metal mesh, so that the resistance of airflow through the multilayer metal mesh can be reduced , thus ensuring 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 press and fasten the first single piece and the second single piece, so that the multi-layer metal mesh The net is arranged in the main body of the fire row monomer.
- 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 technical scheme of the present application changes the top combustion panel 230 from the original structure of opening fire holes on the combustion panel 230 to a structure in which a multilayer metal mesh forms the combustion panel 230, so that the air pressure intensity in the fire row 10 can be reduced by setting it like this , thereby reducing the heat intensity per unit area at the combustion panel 230 .
- the combustion panel 230 of multi-layer metal mesh form makes the fire hole area of fire row 10 fire outlets increase, and after making the air-flow of preliminarily mixed and coming out from combustion panel 230, further mixing has been arranged with the air at combustion panel 230 place, A well-mixed gas is formed, and finally, a stable and uniform flame is formed above the combustion panel 230 .
- the air outlet 120 is formed with a splitter 220 integrally formed with the fire row unit 100.
- the combustion requirements are higher, and the flame requirements at both ends are lower.
- the air outlet 120 is formed with a splitter 220 integrally formed with the fire row unit 100 , the splitter 220 is provided with a plurality of splitter holes, and the plurality of splitter holes are along the length of the splitter 220 The directions are arranged at intervals, and the opening area of the plurality of distribution holes gradually decreases from the middle to both sides.
- the splitter portion 220 includes a first splitter area 223 and at least two second splitter areas 224, the at least two second splitter areas 224 are respectively arranged at both ends of the splitter portion 220 in the length direction, the The second distribution area 224 is arranged between the two first distribution areas 223; the first distribution area 223 and the at least two second distribution areas 224 are provided with distribution holes, and the first The opening area of the splitting area 223 is greater than the opening area of the at least two second splitting areas 224 .
- the first diversion area 223 and at least two second diversion areas 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 at least two second diversion areas 224 located on both sides Opening area, by arranging the first split area 223 with a larger opening area adjacent to the central area of the splitting portion 220 , it is beneficial to improve the combustion effect in the central area of the splitting portion 220 .
- the burner 20 composed of a plurality of fire rows 10
- the second diversion area 224 as two and respectively adjacent to the two ends of the length direction of the diversion part 220, it is beneficial to separate the adjacent fire rows.
- the ends of the body 100 are transmitted through the flame above the second flow distribution area 224, thereby improving the ignition effect of the plurality of fire rows 10.
- the first distribution area 223 is provided with a plurality of first distribution holes 223a, and the plurality of first distribution holes 223a are arranged at intervals along the length direction of the fire row 10; Distributing ribs 225 are formed between the first distributing holes 223a; at least two second distributing holes 223b are provided on the distributing ribs 225 .
- the diversion part 220 is mainly for preliminary diversion, so that the area of the first diversion hole 223a can be set larger, thereby reducing the number of the first diversion hole 223a, and at the same time, the two diversion holes are divided by a flow
- the ribs 225 are formed separately, and the second flow holes 223b are provided on the flow distribution ribs 225, 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 fire row 10, and a distribution rib 225 is formed between any adjacent two of the third distribution holes 224a; the distribution rib 225 is provided with at least two fourth distribution holes 224b .
- the two split holes are separated by split ribs 225 , and the second split holes 223 b are provided on the split ribs 225 , 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 the actual situation.
- 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 part 220 to form various Various holes; the second splitter region 224 can be provided with a plurality of third split holes 224a, and the plurality of third split holes 224a can be configured as various holes extending along the width direction of the splitter portion 220, And the plurality of second flow holes 223b are arranged at intervals along the length direction of the flow distribution portion 220 , and so on.
- the shape of the distribution holes the first distribution hole 223a, the second distribution hole 223b, the third distribution hole 224a and the fourth distribution hole 224b can be circular, square, strip and other regular or irregular shapes.
- the first flow hole 223a, the second flow hole 223b, the third flow hole 224a, and the fourth flow hole 224b are not specifically limited, and can be adjusted according to specific conditions. Finally, the opening areas of these holes can be determined according to the actual power requirements. The sizes of the opening areas of the first flow hole 223 a , the second flow hole 223 b , the third flow hole 224 a and the fourth flow hole 224 b are matched and designed.
- At least one of the splitter ribs 225 includes a downwardly inclined first splitter wall 225a and a second splitter wall 225b, the bottom ends of the first splitter wall 225a and the second splitter wall 225b are connected, and the The distance between the first divider wall 225a and the second divider wall 225b gradually increases outward from the junction of the first divider wall 225a and the second divider wall 225b. It can be understood that the middle part of the splitter 220 is pressed down in this way. This design, combined with the splitter 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 225 are formed between two adjacent first distributing holes 223 a at intervals; the first distributing holes 223 a are provided with wave-shaped 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 .
- the support seat 270 includes two side plates that are interlocked and arranged, and the two side plates The boards are respectively provided with lateral protrusions arranged at intervals along the length direction of the support seat 270 .
- 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 mixing chamber 210, and the at least two outer convex hulls 271 protrude toward the fire.
- 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 mixing chamber 210, and the at least two outer convex hulls 271 protrude toward the fire.
- the inner convex hull 272 is disposed between the at least two outer convex hulls 271 .
- 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 mixing chamber 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 the opposite direction; 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 ventilation between the support seat 270 and the outer wall of the mixing chamber 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 monomers 100 are symmetrically distributed 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 opening is also provided with the
- the combustion panel 230 is fixedly connected with reinforcement ribs 240 , and a plurality of reinforcement ribs 240 are arranged at intervals along the length direction of the fire row 10 .
- the connection between the combustion panel 230 and the plurality of reinforcing ribs 240 is usually welding, and the most commonly used welding is spot welding.
- the reinforcing ribs 240 are set to prevent the metal mesh from softening and collapsing downward. Therefore, the reinforcing ribs 240 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 mixing chamber 210 at the opening.
- 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 20.
- a gas water heater which includes a burner 20.
- the burner 20 For the specific structure of the burner 20, refer to the above-mentioned embodiments. Since this gas water heater adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned embodiments. All the beneficial effects brought by the technical solution will not be repeated here.
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Abstract
Disclosed in the present application are a fire grate, a burner and a gas water heater. The fire grate comprises a single fire-grate body, a support base and a burning panel. In the technical solution of the present application, the original structure of a top burning panel provided with fire holes is changed to a structure of forming the burning panel using a plurality of layers of metal meshes. By means of such an arrangement, the intensity of gas pressure in the fire grate can be reduced, thereby reducing the heat intensity per unit of area of the burning panel. In addition, by means of the burning panel in the form of multiple layers of metal meshes, the fire hole area of a fire outlet of the fire grate is increased, such that after coming out of the burning panel, a gas flow, which is preliminarily mixed, is further mixed with air at the burning panel to form a sufficiently mixed gas; and finally, a stable and uniform flame is formed above the burning panel. The heat load of the fire grate provided in the present application is significantly increased, the range of adaptability of the fire grate is also correspondingly expanded, and thus, the performance of flue gas emitted during instantaneous combustion is better, and the amount of NOx generated after burning is also lower.
Description
优先权信息priority information
本申请要求于2022年2月14日申请的、申请号为202220297475.1以及202220297482.1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。This application claims the priority of Chinese patent applications with application numbers 202220297475.1 and 202220297482.1 filed on February 14, 2022, the entire contents of which are incorporated in this application by reference.
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。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.
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。In the related prior art, 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.
申请内容application content
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。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.
为实现上述目的,本申请提出的火排,该火排包括:In order to achieve the above object, the fire row that the application proposes, this fire row comprises:
火排单体,所述火排单体内形成通气通道,且所述火排单体的顶部设有与所述通气通道连通的出气口;Fire row unit, a ventilation channel is formed in the fire row unit, and the top of the fire row unit is provided with an air outlet communicating with the ventilation channel;
支撑座,套设在所述火排单体的上端,所述支撑座内形成混合腔,所述混合腔连通所述出气口,所述混合腔的上部形成敞口,且所述敞口对应所述出气口设置;以及The supporting seat is sleeved on the upper end of the fire row unit, and a mixing chamber is formed in the supporting seat, and the mixing chamber communicates with the air outlet. The upper part of the mixing chamber forms an opening, and the opening corresponds to said air outlet arrangement; and
燃烧面板,设于所述敞口处,且所述燃烧面板为多层金属网。The combustion panel is arranged at the opening, and the combustion panel is a multi-layer metal mesh.
在一实施例中,所述出气口处形成有与所述火排单体一体成型的分流部,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的长度方向间隔排布,且所述多个分流孔的开孔面积从中间向两边逐渐减小。In one embodiment, a splitter part integrally formed with the fire row unit is formed at the air outlet, and a plurality of splitter holes are arranged on the splitter part, and the plurality of splitter holes are arranged along the The longitudinal direction is arranged at intervals, and the opening area of the plurality of distribution holes gradually decreases from the middle to both sides.
在一实施例中,所述出气口处形成有与所述火排单体一体成型的分流部,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。In one embodiment, a splitter part integrally formed with the fire row unit is formed at the air outlet, and the splitter part includes a first splitter area and at least two second splitter areas, and the at least two second splitter areas The two diverging areas are respectively arranged at both ends of the longitudinal direction of the splitting part, and the second splitting area is arranged between the two first splitting areas; the first splitting area and the at least two second splitting areas Distributing holes are provided on all the diverging areas, and the opening area of the first distributing area is larger than the opening area of the at least two second distributing areas.
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火排的长度方向间隔排布;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。In one embodiment, the first distribution area is provided with a plurality of first distribution holes, and the plurality of first distribution holes are arranged at intervals along the length direction of the fire row; any adjacent two of the Distributing ribs are formed between the first distributing holes; at least two second distributing holes are arranged on the distributing ribs.
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火排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。In one embodiment, the second distribution area is provided with a plurality of third distribution holes, the plurality of third distribution holes are arranged at intervals along the length direction of the fire row, and any two adjacent Distributing ribs are formed between the third distributing holes; at least two fourth distributing holes are arranged on the distributing ribs.
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。In one embodiment, 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.
在一实施例中,所述支撑座包括相互扣合设置的两个侧板,两个所述侧板分别设有沿所述支撑座的长度方向间隔排布的侧向凸包。In one embodiment, the support seat includes two side plates interlocked with each other, and the two side plates are respectively provided with lateral protrusions arranged at intervals along the length direction of the support seat.
在一实施例中,所述侧向凸包包括内凸包和至少两个外凸包;所述内凸包凸向所述混合腔,所述至少两个外凸包凸向所述火排外侧;并且所述内凸包设于所述至少两个外凸包 之间。In one embodiment, the lateral protrusions include an inner protrusion and at least two outer protrusions; the inner protrusion protrudes toward the mixing chamber, and the at least two outer protrusions protrude toward the fire row the outer side; and the inner convex hull is disposed between the at least two outer convex hulls.
在一实施例中,所述敞口处还设有与所述燃烧面板固定连接的加强筋,多个所述加强筋沿所述火排的长度方向间隔排布。In one embodiment, the opening is further provided with reinforcing ribs fixedly connected with the combustion panel, and a plurality of the reinforcing ribs are arranged at intervals along the length direction of the fire row.
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。In one embodiment, in the multi-layer metal mesh, at least one layer of metal mesh is bent to form a bent portion at an edge.
在一实施例中,所述支撑座上还设有向上延伸的导焰板,所述导焰板设于所述燃烧面板的宽度方向的两侧。In one embodiment, the support seat is further provided with upwardly extending flame deflectors, and the flame deflectors are arranged on both sides of the combustion panel in the width direction.
本申请还提出一种燃烧器,所述燃烧器包括前述的火排,该火排包括火排单体、支撑座和燃烧面板,其中,所述火排单体内形成通气通道,且所述火排单体的顶部设有与所述通气通道连通的出气口;所述支撑座套设在所述火排单体的上端;所述支撑座内形成混合腔,所述混合腔连通所述出气口,所述混合腔的上部形成敞口,且所述敞口对应所述出气口设置;所述燃烧面板设于所述敞口处;且所述燃烧面板为多层金属网。The present application also proposes a burner, the burner includes the aforementioned fire row, and the fire row includes a fire row unit, a support seat and a combustion panel, wherein a ventilation channel is formed in the fire row unit, and the fire row The top of the row monomer is provided with an air outlet that communicates with the ventilation channel; the support seat is sleeved on the upper end of the fire row monomer; a mixing chamber is formed in the support seat, and the mixing chamber communicates with the outlet. The upper part of the mixing chamber forms an opening, and the opening is set corresponding to the air outlet; the combustion panel is arranged at the opening; and the combustion panel is a multi-layer metal mesh.
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。In one embodiment, there are multiple fire rows, and multiple fire rows are arranged side by side.
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,该火排包括火排单体、支撑座和燃烧面板,其中,所述火排单体内形成通气通道,且所述火排单体的顶部设有与所述通气通道连通的出气口;所述支撑座套设在所述火排单体的上端;所述支撑座内形成混合腔,所述混合腔连通所述出气口,所述混合腔的上部形成敞口,且所述敞口对应所述出气口设置;所述燃烧面板设于所述敞口处;且所述燃烧面板为多层金属网。The present application also proposes a gas water heater, the gas water heater includes the aforementioned burner, the burner includes a fire row, and the fire row includes a fire row unit, a support seat and a combustion panel, wherein the fire row unit forms a Air passage, and the top of the fire platoon monomer is provided with an air outlet communicating with the air passage; the support seat is sleeved on the upper end of the fire platoon monomer; a mixing chamber is formed in the support seat, so The mixing chamber communicates with the air outlet, the upper part of the mixing chamber forms an opening, and the opening is set corresponding to the air outlet; the combustion panel is arranged at the opening; and the combustion panel is multiple layer of metal mesh.
本申请的技术方案通过将顶部燃烧面板由原来的在燃烧面板上开设火孔的结构,改成了多层金属网形成燃烧面板的结构,这样设置可以降低火排内的气压强度,进而降低燃烧面板处单位面积的热强度。同时,多层金属网形式的燃烧面板使得火排出火口的火孔面积增加,使得已经初步混合的气流与从燃烧面板出来后,与燃烧面板处的空气有了进一步的混合,形成了混合充分的燃气,最后,在燃烧面板的上方形成稳定且均匀的火焰。由此可见,与现有技术相比,本申请提供火排的热负荷大幅度提高了,适应性范围也相应提高了,进而瞬间燃烧排放烟气性能更好,燃烧后产生的氮氧化物也更低。The technical scheme of the present application changes the top combustion panel from the original structure with fire holes on the combustion panel to a structure in which a multi-layer metal mesh forms the combustion panel. This arrangement can reduce the air pressure intensity in the fire row, thereby reducing the combustion The heat intensity per unit area at the panel. At the same time, the combustion panel in the form of multi-layer metal mesh increases the fire hole area of the fire discharge port, so that the airflow that has been initially mixed is further mixed with the air at the combustion panel after it comes out of the combustion panel, forming a well-mixed The gas, finally, creates a steady and uniform flame above the combustion panel. It can be seen that, compared with the prior art, the heat load of the fire row provided by the present application has been greatly improved, and the scope of adaptability has also been improved accordingly, and then the smoke emission performance of instantaneous combustion is better, and the nitrogen oxides produced after combustion are also lower. lower.
通过在火排片顶部设有燃烧面板,由于该燃烧面板为多层金属网的结构,可增大火孔面积,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。By installing a combustion panel on the top of the fire platoon, since the combustion panel is a multi-layer metal mesh structure, the area of the fire hole can be increased, the performance of instantaneous combustion and exhaust gas can be better, and the generation of nitrogen oxides can be reduced. At the same time, the use of The metal mesh fire hole structure has the effect of stabilizing the flame, which can improve the thermal load combustion range of the single piece of the fire row, and can solve the problem that the small load cannot be lowered, so that it can reduce the segmentation, simple structure, convenient manufacture, and low cost , and can meet the use requirements of low nitrogen emission of the whole machine.
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。In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative effort.
图1为本申请火排一实施例的结构示意图;Fig. 1 is the structural representation of an embodiment of the fire row of the present application;
图2为图1的一侧视图;Fig. 2 is a side view of Fig. 1;
图3为图1中A-A剖视图;Fig. 3 is A-A sectional view among Fig. 1;
图4为图1的另一侧视图;Fig. 4 is another side view of Fig. 1;
图5为图1火排单体和分流部的结构示意图;Fig. 5 is the structural schematic view of Fig. 1 fire row monomer and splitter;
图6为图5的一侧视图;Fig. 6 is a side view of Fig. 5;
图7为图5中B-B剖视图;Fig. 7 is B-B sectional view among Fig. 5;
图8为图5的另一侧视图;Fig. 8 is another side view of Fig. 5;
图9为图1支撑座的结构示意图;Fig. 9 is a schematic structural view of the support seat in Fig. 1;
图10为图9中C-C剖视图;Fig. 10 is a C-C sectional view in Fig. 9;
图11为图9的一侧视图;Fig. 11 is a side view of Fig. 9;
图12为图9的另一侧视图;Fig. 12 is another side view of Fig. 9;
图13为图9的又一侧视图;Fig. 13 is another side view of Fig. 9;
图14为本申请火排另一实施例的结构示意图;Fig. 14 is a schematic structural view of another embodiment of the fire platoon of the present application;
图15为图14的一侧视图;Figure 15 is a side view of Figure 14;
图16为图14中D-D剖视图;Fig. 16 is a D-D sectional view in Fig. 14;
图17为图16中分流部一实施例的结构示意图;Fig. 17 is a schematic structural view of an embodiment of the splitter in Fig. 16;
图18为图17的一侧视图;Figure 18 is a side view of Figure 17;
图19为图17的另一侧视图;Figure 19 is another side view of Figure 17;
图20为图16中分流部另一实施例的结构示意图;Fig. 20 is a schematic structural view of another embodiment of the splitter in Fig. 16;
图21为图20的一侧视图;Figure 21 is a side view of Figure 20;
图22为图20的又一侧视图;Figure 22 is another side view of Figure 20;
图23为本申请火排又一实施例的结构示意图;Fig. 23 is a structural schematic diagram of another embodiment of the fire platoon of the present application;
图24为图23中E-E的剖视图;Figure 24 is a cross-sectional view of E-E in Figure 23;
图25为本申请燃烧器一实施例的结构示意图;Fig. 25 is a schematic structural view of an embodiment of the burner of the present application;
图26为图1的立体图;Figure 26 is a perspective view of Figure 1;
图27为图9的立体图;Figure 27 is a perspective view of Figure 9;
图28为图5的立体图;Figure 28 is a perspective view of Figure 5;
图29为图14的立体图;Figure 29 is a perspective view of Figure 14;
图30为图20的立体图。FIG. 30 is a perspective view of FIG. 20 .
标号label |
名称 | 标号label | 名称name | |
1010 |
火排 |
2020 |
燃烧器 |
|
100100 |
火排单体 |
110110 |
进气口 |
|
220220 |
分流部 |
120120 |
出气口 |
|
210210 |
混合腔 |
226226 | 凸起protruding | |
230230 |
燃烧面板burning |
240240 |
加强筋 |
|
223223 |
第一分流区 |
224224 |
第二分流区 |
|
223a223a |
第一分流孔 |
224a224a |
第三分流孔 |
|
223b223b |
第二分流孔 |
224b224b |
第四分流孔The |
|
225a225a |
第一分流壁first dividing |
225b225b |
第二分流壁 |
|
225225 |
分流筋 |
271271 |
外凸包 |
|
272272 |
内凸包Inner |
270270 |
支撑座 |
|
274274 | 导焰板flame deflector | the | the |
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。The realization, functional features and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.
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。The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
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。It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of the present application, the directional indications are only used to explain the position in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
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。In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be interpreted as indications or hints Its relative importance or implicitly indicates the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, if the meaning of "and/or" appearing in the whole text includes three parallel schemes, taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes in which both A and B are satisfied . In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.
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,导致分流装置的结构较为复杂,存在加工难度大以及加工效率低的缺陷。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. On the one hand, due to the small area of a single strip-shaped split hole, 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. On the other hand, processing a plurality of strip-shaped flow holes on the flow distribution device leads to a relatively complicated structure of the flow distribution device, which has the defects of high processing difficulty and low processing efficiency.
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。In order to fully burn the gas passing through the gas water heater and reduce the nitrogen oxides produced when the gas water heater is working, this application proposes a fire exhaust, please refer to Figure 1 and Figure 3, Figure 1 shows the fire exhaust of this application As a front view of an embodiment, FIG. 3 shows a cross-sectional view of the fire row in FIG. 1 , and FIG. 2 shows a schematic diagram of the internal structure of the fire row in detail.
在本申请实施例中,如图1所示,该火排10包括火排单体100、支撑座270和燃烧面板230,其中,所述火排单体100内形成通气通道,且所述火排单体100的顶部设有与所述通气通道连通的出气口120;支撑座270,套设在所述火排单体100的上端;所述支撑座270内形成混合腔210,所述混合腔210连通所述出气口120,所述混合腔210的上部形成敞口,且所述敞口对应所述出气口120设置;燃烧面板230设于所述敞口处;且所述燃烧面板230为多层金属网。In the embodiment of the present application, as shown in FIG. 1, the fire row 10 includes a fire row unit 100, a support seat 270 and a combustion panel 230, wherein a ventilation channel is formed in the fire row unit 100, and the fire row The top of row monomer 100 is provided with the air outlet 120 that is communicated with described ventilation passage; Support seat 270, is sleeved on the upper end of described fire row monomer 100; Forms mixing chamber 210 in described support seat 270, and described mixing The cavity 210 communicates with the gas outlet 120, and the upper part of the mixing chamber 210 forms an opening, and the opening is arranged corresponding to the gas outlet 120; the combustion panel 230 is arranged at the opening; and the combustion panel 230 It is a multi-layer metal mesh.
本申请还提出一种火排,请参照图23和图24,图23示出了本申请火排一实施例的主视图,图24展示出了图23中火排的剖视图。The application also proposes a fire row, please refer to Figure 23 and Figure 24, Figure 23 shows a front view of an embodiment of the fire row of the application, and Figure 24 shows a cross-sectional view of the fire row in Figure 23.
在本申请实施例中,如图23和图24所示,该火排10包括火排单体100和燃烧面板230,其中,火排单体100,所述火排单体100由第一火排单片和第二火排单片扣合形成;所述火排单体100的顶部形成有顶面敞口的腔体210;燃烧面板230,设于所述敞口处,且所述燃烧面板230为多层金属网。In the embodiment of the present application, as shown in Figure 23 and Figure 24, the fire row unit 10 includes a fire row unit 100 and a combustion panel 230, wherein the fire row unit 100 is formed by the first fire row unit 100 The row single piece and the second fire row single piece are buckled to form; the top of the fire row monomer 100 forms a cavity 210 with an open top surface; the combustion panel 230 is arranged at the opening, and the combustion Panel 230 is a multi-layer metal mesh.
具体而言,燃烧器20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,其中,燃气热水器的燃烧器20实现低氮燃烧的过程中,火排10的结构起到关键性作用。就火排10而言,火排10包括火排单体100、支撑座270和燃烧面板230,其中,所述火排单体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,而后,从出气口120流出,进而从出气口120流出,而后经过支撑座270内的混合腔210进行进一步的混合,最后在实质为多层金属网的燃烧面板230处实现充分的分流,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。Specifically, the burner 20 is one of the core components of the gas water heater, and the fire row 10 is one of the core components of the burner 20, wherein, when the burner 20 of the gas water heater realizes low-nitrogen combustion, the structure of the fire row 10 play a key role. As far as the fire row 10 is concerned, the fire row 10 includes a fire row unit 100, a support seat 270 and a combustion panel 230, wherein a ventilation passage is formed in the fire row unit 100, and the ventilation passage includes an air inlet 110 and an outlet. The air inlet 120, the air inlet 110 is usually connected with the airflow source, the airflow source includes air and gas, the gas and air enter the ventilation channel from the air inlet 110, the gas and air are pre-mixed in the ventilation channel, and then, from the air outlet 120 flow out, and then flow out from the air outlet 120, and then pass through the mixing chamber 210 in the support seat 270 for further mixing, and finally realize sufficient flow splitting at the combustion panel 230, which is essentially a multi-layer metal mesh, and finally be drawn above the combustion panel 230 Ignite, then form a stable and uniform flame.
进一步地,本实施例设置的支撑座270套设在所述火排单体100的上端;所述支撑座270内形成混合腔210,所述混合腔210连通所述出气口120,所述混合腔210的上部形成敞口,且所述敞口对应所述出气口120设置;燃烧面板230设置在所述敞口处。这样设置,使得从火排10出来的气体,另外,应用该火排10的燃烧器20为多个时,还可以降低相邻两个火排10之间的火焰相互影响。Further, the support seat 270 set in this embodiment is sleeved on the upper end of the fire row unit 100; a mixing chamber 210 is formed in the support seat 270, and the mixing chamber 210 communicates with the air outlet 120, and the mixing chamber 210 The upper part of the cavity 210 forms an opening, and the opening is arranged corresponding to the air outlet 120; the combustion panel 230 is arranged at the opening. Such arrangement makes the gas coming out of the fire row 10, and in addition, when the burner 20 of the fire row 10 is used in multiples, the mutual influence of flames between two adjacent fire rows 10 can also be reduced.
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,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,具体的高度可以根据实际的产品功率测量,在此不做过多的限制。Secondly, in order to further reduce the mutual influence of flames between adjacent fire rows 10, 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, in order to ensure that the burner 20 has sufficient heat output, the height of the support seat 270 should not be too high. The specific height can be measured according to the actual product power, and there are no excessive restrictions here.
另外,在本申请的实施例中,所述燃烧面板230设为金属网,还能提高火排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。同时,考虑到,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。In addition, in the embodiment of the present application, the combustion panel 230 is made of metal mesh, which can also increase the heat load of the fire row 10, improve its adaptability range, and furthermore, the performance of instantaneous combustion and emission of smoke is better, and finally the combustion can be realized. The resulting nitrogen oxides are lower. At the same time, considering that the temperature of 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.
更进一步地,考虑到金属网的开孔面积较大,为了防止回火造成燃烧器20***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。Furthermore, considering that the opening area of the metal mesh is relatively large, in order to prevent accidents such as the burner 20 explosion caused by tempering, the metal mesh is set in multiple layers, and the number of layers of the metal mesh is set to be related to the mesh number of the multilayer metal mesh , the number of layers of the mesh in the multilayer metal mesh is negatively correlated with the mesh number of the mesh, that is, the number of layers corresponding to the mesh with a large number of meshes is small, and the number of layers corresponding to a small mesh is large. For example, the number of layers of a multilayer metal mesh Including but not limited to 2 to 10 layers, specifically 2, 3, 5, 8 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. At the same time, 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.
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,在所述多层金属网中,至少一层金属网的相对两端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,对应的金属网的强度也更大。其次,将折弯部与另一层的折弯部或者网相接,并使得相邻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,进而保证足够的气流。Further, in order to increase the strength of the multi-layer metal mesh and improve the stability of flame combustion, in the multi-layer metal mesh, the edges of the opposite ends of at least one layer of metal mesh are bent to form a bent portion, and tension will be generated at the bend , the strength of the bent metal mesh is higher. Here, 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 corresponding metal mesh is also stronger. big. Secondly, connect the bent part with another layer of bent part or mesh, and form a gap between adjacent two layers of metal mesh, so that the resistance of airflow through the multilayer metal mesh can be reduced , thus ensuring sufficient airflow.
可以理解的是,请参阅图3、图16和图24,火排10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。It can be understood that, referring to Fig. 3, Fig. 16 and Fig. 24, 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. Among them, 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 press and fasten the first single piece and the second single piece, so that the multi-layer metal mesh The net is arranged in the main body of the fire row monomer. 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 .
本申请的技术方案通过将顶部燃烧面板230由原来的在燃烧面板230上开设火孔的结构,改成了多层金属网形成燃烧面板230的结构,这样设置可以降低火排10内的气压强度,进而降低燃烧面板230处单位面积的热强度。同时,多层金属网形式的燃烧面板230使得火排10出火口的火孔面积增加,使得已经初步混合的气流与从燃烧面板230出来后,与燃烧面板230处的空气有了进一步的混合,形成了混合充分的燃气,最后,在燃烧面板230的上方形成稳定且均匀的火焰。由此可见,与现有技术相比,本申请提供火排10的热负荷大幅度提高了,适应性范围也相应提高了,进而瞬间燃烧排放烟气性能更好,燃烧后产生的氮氧化物也更低。The technical scheme of the present application changes the top combustion panel 230 from the original structure of opening fire holes on the combustion panel 230 to a structure in which a multilayer metal mesh forms the combustion panel 230, so that the air pressure intensity in the fire row 10 can be reduced by setting it like this , thereby reducing the heat intensity per unit area at the combustion panel 230 . Simultaneously, the combustion panel 230 of multi-layer metal mesh form makes the fire hole area of fire row 10 fire outlets increase, and after making the air-flow of preliminarily mixed and coming out from combustion panel 230, further mixing has been arranged with the air at combustion panel 230 place, A well-mixed gas is formed, and finally, a stable and uniform flame is formed above the combustion panel 230 . It can be seen that, compared with the prior art, the heat load of the fire row 10 provided by the present application has been greatly improved, and the scope of adaptability has also been improved accordingly, and then the smoke emission performance of instantaneous combustion is better, and the nitrogen oxides produced after combustion Also lower.
请参阅图1至图3,在一较佳的实施例中,所述出气口120处形成有与所述火排单体100一体成型的分流部220,考虑到火排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。所述出气口120处形成有与所述火排单体100一体成型的分流部220,所述分流部220上设置有多个分流孔,所述多个分流孔沿所述分流部220的长度方向间隔排布,且所述多个分流孔的开孔面积从中间向两边逐渐减小。或者,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;所述第一分流区223和所述至少两个第二分流区224上均设有分流孔,并且,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。Please refer to FIGS. 1 to 3. In a preferred embodiment, the air outlet 120 is formed with a splitter 220 integrally formed with the fire row unit 100. The combustion requirements are higher, and the flame requirements at both ends are lower. The air outlet 120 is formed with a splitter 220 integrally formed with the fire row unit 100 , the splitter 220 is provided with a plurality of splitter holes, and the plurality of splitter holes are along the length of the splitter 220 The directions are arranged at intervals, and the opening area of the plurality of distribution holes gradually decreases from the middle to both sides. Alternatively, the splitter portion 220 includes a first splitter area 223 and at least two second splitter areas 224, the at least two second splitter areas 224 are respectively arranged at both ends of the splitter portion 220 in the length direction, the The second distribution area 224 is arranged between the two first distribution areas 223; the first distribution area 223 and the at least two second distribution areas 224 are provided with distribution holes, and the first The opening area of the splitting area 223 is greater than the opening area of the at least two second splitting areas 224 .
鉴于火排10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和至少两个第二分流区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10所构成的燃烧器20,通过将第二分流区224设为两个且分别邻近分流部220的长度方向的两端设置,有利于在相邻火排单体100的端部之间通过第二分流区224上方火焰进行传递,从而提高了多个火排10的引燃效果。In view of the fact that fire row 10 has higher requirements for combustion in the central region, the two ends have lower requirements for flame. Therefore, the first diversion area 223 and at least two second diversion areas 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 at least two second diversion areas 224 located on both sides Opening area, by arranging the first split area 223 with a larger opening area adjacent to the central area of the splitting portion 220 , it is beneficial to improve the combustion effect in the central area of the splitting portion 220 . Furthermore, for the burner 20 composed of a plurality of fire rows 10, by setting the second diversion area 224 as two and respectively adjacent to the two ends of the length direction of the diversion part 220, it is beneficial to separate the adjacent fire rows. The ends of the body 100 are transmitted through the flame above the second flow distribution area 224, thereby improving the ignition effect of the plurality of fire rows 10.
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沿所述火排10的长度方向间隔排布;任意相邻的两个所述第一分流孔223a之间形成分流筋225;所述分流筋225上设有至少两个第二分流孔223b。可以理解的是,分流部220主要是初步进行分流,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225分隔形成,在分流筋225上设置第二分流孔223b,可以进一步提高火焰的均匀性。Further, the first distribution area 223 is provided with a plurality of first distribution holes 223a, and the plurality of first distribution holes 223a are arranged at intervals along the length direction of the fire row 10; Distributing ribs 225 are formed between the first distributing holes 223a; at least two second distributing holes 223b are provided on the distributing ribs 225 . It can be understood that the diversion part 220 is mainly for preliminary diversion, so that the area of the first diversion hole 223a can be set larger, thereby reducing the number of the first diversion hole 223a, and at the same time, the two diversion holes are divided by a flow The ribs 225 are formed separately, and the second flow holes 223b are provided on the flow distribution ribs 225, which can further improve the uniformity of the flame.
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沿所述火排10的长度方向间隔排布,任意相邻的两个所述第三分流孔224a之间形成分流筋225;所述分流筋225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225分隔形成,在分流筋225上设置第二分流孔223b,可以进一步提高火排10两端火焰的均匀性。In addition, 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 fire row 10, and a distribution rib 225 is formed between any adjacent two of the third distribution holes 224a; the distribution rib 225 is provided with at least two fourth distribution holes 224b . At the same time, the two split holes are separated by split ribs 225 , and the second split holes 223 b are provided on the split ribs 225 , which can further improve the uniformity of the flames at both ends of the fire row 10 .
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沿分流部220的长度方向延伸以形成各种各样的孔;第二分流区224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部220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等等。另外,关于分流孔的形状,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均不做具体的限制,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。It should be noted that the above are only some of the implementations, the 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 the actual situation. For example, 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 part 220 to form various Various holes; the second splitter region 224 can be provided with a plurality of third split holes 224a, and the plurality of third split holes 224a can be configured as various holes extending along the width direction of the splitter portion 220, And the plurality of second flow holes 223b are arranged at intervals along the length direction of the flow distribution portion 220 , and so on. In addition, regarding the shape of the distribution holes, the first distribution hole 223a, the second distribution hole 223b, the third distribution hole 224a and the fourth distribution hole 224b can be circular, square, strip and other regular or irregular shapes. The first flow hole 223a, the second flow hole 223b, the third flow hole 224a, and the fourth flow hole 224b are not specifically limited, and can be adjusted according to specific conditions. Finally, the opening areas of these holes can be determined according to the actual power requirements. The sizes of the opening areas of the first flow hole 223 a , the second flow hole 223 b , the third flow hole 224 a and the fourth flow hole 224 b are matched and designed.
更进一步地,至少一个所述分流筋225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。可以理解的是,这样是把分流部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。Furthermore, at least one of the splitter ribs 225 includes a downwardly inclined first splitter wall 225a and a second splitter wall 225b, the bottom ends of the first splitter wall 225a and the second splitter wall 225b are connected, and the The distance between the first divider wall 225a and the second divider wall 225b gradually increases outward from the junction of the first divider wall 225a and the second divider wall 225b. It can be understood that the middle part of the splitter 220 is pressed down in this way. This design, combined with the splitter 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.
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225;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。Please refer to FIGS. 20 to 22 , on the basis of the previous embodiment, 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 225 are formed between two adjacent first distributing holes 223 a at intervals; the first distributing holes 223 a are provided with wave-shaped protrusions 226 along the length direction of the distributing portion 220 . It can be understood that, compared with the previous embodiment, 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. At the same time, 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.
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沿所述支撑座270的长度方向间隔排布的侧向凸包。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凸向所述混合腔210,所述至少两个外凸包271凸向所述火排10外侧;并且所述内凸包272设于所述至少两个外凸包271之间。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凸向所述混合腔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。Please refer to Fig. 1, Fig. 9 and Fig. 12, on the basis of the previous embodiment, in order to improve the combustion rate of the fire row 10, the support seat 270 includes two side plates that are interlocked and arranged, and the two side plates The boards are respectively provided with lateral protrusions arranged at intervals along the length direction of the support seat 270 . Wherein, 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 mixing chamber 210, and the at least two outer convex hulls 271 protrude toward the fire. The outer side of the row 10; and the inner convex hull 272 is arranged between the at least two outer convex hulls 271 . Wherein, 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 mixing chamber 210, and the at least two outer convex hulls 271 protrude toward the fire. Outside the row 10 ; the inner convex hull 272 is disposed between the at least two outer convex hulls 271 .
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:For the convenience of description, the two side panels are respectively named as the first side panel and the second side panel for introduction:
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凸向所述混合腔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与所述混合腔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单体100的宽度方向上对称分布。Specifically, the 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 mixing chamber 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 the opposite direction; 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 ventilation between the support seat 270 and the outer wall of the mixing chamber 210. Channel, the outer convex hull 271 guarantees the secondary air intake channel between the fire row 10. Preferably, in order to facilitate processing, and to facilitate arrangement and installation in the scenario where multiple fire bars 10 are used at the same time, 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 monomers 100 are symmetrically distributed in the width direction.
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,以使侧焰朝向火排单体100的中心区域聚拢,有利于提高燃烧过程中热量的集聚效果。In addition, the 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. By arranging the flame deflector 274 on the top edge of the first side plate and the second side plate, the formation of the flame at the combustion panel 230 can be guided, so that the side flame is directed toward the side of the fire row unit 100. The central area gathers, which is beneficial to improve the heat accumulation effect in the combustion process.
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,所述敞口处还设有与所述燃烧面板230固定连接的加强筋240,多个所述加强筋240沿所述火排10的长度方向间隔排布。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,最常用的焊接是点焊。Please refer to Fig. 1, Fig. 4 and Fig. 13. In one embodiment, considering that the multi-layer metal mesh is burned with the flame to prevent the metal mesh from softening and collapsing downward, the opening is also provided with the The combustion panel 230 is fixedly connected with reinforcement ribs 240 , and a plurality of reinforcement ribs 240 are arranged at intervals along the length direction of the fire row 10 . Specifically, the connection between the combustion panel 230 and the plurality of reinforcing ribs 240 is usually welding, and the most commonly used welding is spot welding.
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240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与所述敞口处的混合腔210的外壁连接。It should be noted that the reinforcing ribs 240 are set to prevent the metal mesh from softening and collapsing downward. Therefore, the reinforcing ribs 240 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 mixing chamber 210 at the opening.
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。Please refer to Fig. 25, 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.
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。Wherein, in order to meet greater demand for heat, in 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.
本申请还提出一种燃气热水器,该燃气热水器包括燃烧器20,该燃烧器20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。The present application also proposes a gas water heater, which includes a burner 20. For the specific structure of the burner 20, refer to the above-mentioned embodiments. Since this gas water heater adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned embodiments. All the beneficial effects brought by the technical solution will not be repeated here.
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。The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Under the inventive concept of the present application, the equivalent structural transformations made by using the description of the application and the contents of the accompanying drawings, or direct/indirect Applications in other relevant technical fields are included in the patent protection scope of the present application.
Claims (22)
- 一种火排,其中,所述火排包括:A kind of fire row, wherein, described fire row comprises:火排单体,所述火排单体内形成通气通道,且所述火排单体的顶部设有与所述通气通道连通的出气口;Fire row unit, a ventilation channel is formed in the fire row unit, and the top of the fire row unit is provided with an air outlet communicating with the ventilation channel;支撑座,套设在所述火排单体的上端,所述支撑座内形成混合腔,所述混合腔连通所述出气口,所述混合腔的上部形成敞口,且所述敞口对应所述出气口设置;以及The supporting seat is sleeved on the upper end of the fire row unit, and a mixing chamber is formed in the supporting seat, and the mixing chamber communicates with the air outlet. The upper part of the mixing chamber forms an opening, and the opening corresponds to said air outlet arrangement; and燃烧面板,设于所述敞口处,且所述燃烧面板为多层金属网。The combustion panel is arranged at the opening, and the combustion panel is a multi-layer metal mesh.
- 如权利要求1所述的火排,其中,所述出气口处形成有与所述火排单体一体成型的分流部,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的长度方向间隔排布,且所述多个分流孔的开孔面积从中间向两边逐渐减小。The fire row according to claim 1, wherein, a diverter part integrally formed with the fire row unit is formed at the air outlet, and a plurality of diverter holes are arranged on the diverter part, and the plurality of diverter holes They are arranged at intervals along the length direction of the splitter part, and the opening area of the plurality of splitter holes gradually decreases from the middle to both sides.
- 如权利要求1所述的火排,其中,所述出气口处形成有与所述火排单体一体成型的分流部,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。The fire row according to claim 1, wherein at the air outlet, there is formed a splitter integrally formed with the fire row unit, and the splitter includes a first splitter area and at least two second splitter areas, The at least two second diversion areas are respectively arranged at both ends of the longitudinal direction of the diversion part, and the second diversion area is arranged between the two first diversion areas; the first diversion area and the Distributing holes are provided on the at least two second distributing areas, and the opening area of the first distributing area is larger than the opening area of the at least two second distributing areas.
- 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火排的长度方向间隔排布;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。The fire row according to claim 3, wherein a plurality of first flow holes are arranged on the first diversion area, and the plurality of first flow holes are arranged at intervals along the length direction of the fire row; Distributing ribs are formed between two adjacent first distributing holes; at least two second distributing holes are provided on the distributing ribs.
- 如权利要求4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火排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。The fire row according to claim 4, wherein a plurality of third flow holes are arranged on the second diversion area, and the plurality of third flow holes are arranged at intervals along the length direction of the fire row, and any relative Distributing ribs are formed between two adjacent third distributing holes; at least two fourth distributing holes are provided on the distributing ribs.
- 如权利要求5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。The fire row according to claim 5, wherein at least one of said distribution ribs comprises a first distribution wall and a second distribution wall inclined downward, and the bottom ends of said first distribution wall and said second distribution wall are connected , and the distance between the first divider wall and the second divider wall gradually increases outward from the junction of the first divider wall and the second divider wall.
- 如权利要求1所述的火排,其中,所述支撑座包括相互扣合设置的两个侧板,两个所述侧板分别设有沿所述支撑座的长度方向间隔排布的侧向凸包。The fire row according to claim 1, wherein the support seat includes two side plates which are fastened with each other, and the two side plates are respectively provided with side plates arranged at intervals along the length direction of the support seat. convex hull.
- 如权利要求7所述的火排,其中,所述侧向凸包包括内凸包和至少两个外凸包;所述内凸包凸向所述混合腔,所述至少两个外凸包凸向所述火排外侧;并且所述内凸包设于所述至少两个外凸包之间。The fire row according to claim 7, wherein said lateral convexity comprises an inner convexity and at least two outer convexities; said inner convexity protrudes toward said mixing chamber, said at least two outer convexities protruding toward the outside of the fire bar; and the inner convex wrap is arranged between the at least two outer convex wraps.
- 如权利要求1所述的火排,其中,所述敞口处还设有与所述燃烧面板固定连接的加强筋,多个所述加强筋沿所述火排的长度方向间隔排布。The fire row according to claim 1, wherein said opening is further provided with reinforcing ribs fixedly connected with said combustion panel, and a plurality of said reinforcing ribs are arranged at intervals along the length direction of said fire row.
- 如权利要求1至8中任意一项所述的火排,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。The fire row according to any one of claims 1 to 8, wherein, in the multi-layer metal mesh, the edges of at least one layer of metal mesh are bent to form a bent portion.
- 一种火排,其中,所述火排包括:A kind of fire row, wherein, described fire row comprises:火排单体,所述火排单体由第一火排单片和第二火排单片扣合形成,所述火排单体的顶部形成有顶面敞口的腔体;以及The fire row unit, the fire row unit is formed by fastening the first fire row unit and the second fire unit unit, and the top of the fire unit unit forms a cavity with an open top surface; and燃烧面板,设于所述敞口处,且所述燃烧面板为多层金属网。The combustion panel is arranged at the opening, and the combustion panel is a multi-layer metal mesh.
- 如权利要求11所述的火排,其中,所述燃烧面板的顶部与所述敞口平齐。12. The fire row of claim 11, wherein the top of the burner panel is flush with the opening.
- 如权利要求11所述的火排,其中,所述火排还包括设于所述腔体内的分流部,且所述分流部位于所述燃烧面板的下方;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。The fire row according to claim 11, wherein, the fire row further comprises a diverter part arranged in the cavity, and the diverter part is located below the combustion panel; the diverter part is provided with a plurality of Distributing holes, the plurality of distributing holes are arranged at intervals along the length direction of the distributing part.
- 如权利要求13所述的火排,其中,所述多个分流孔的开孔面积从中间向两边逐步减小。The fire row according to claim 13, wherein the opening area of the plurality of distribution holes gradually decreases from the middle to both sides.
- 如权利要求13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。The fire row according to claim 13, wherein, the diversion part comprises a first diversion area and at least two second diversion areas, and the at least two second diversion areas are respectively arranged in the longitudinal direction of the diversion part. At both ends, the second split area is arranged between the two first split areas; split holes are provided on the first split area and the at least two second split areas, and the first split area The opening area of a split area is larger than the opening area of the at least two second split areas.
- 如权利要求15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火排的长度方向间隔排布;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。The fire row according to claim 15, wherein a plurality of first flow holes are arranged on the first diversion area, and the plurality of first flow holes are arranged at intervals along the length direction of the fire row; Distributing ribs are formed between two adjacent first distributing holes; at least two second distributing holes are provided on the distributing ribs.
- 如权利要求16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火排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。The fire row according to claim 16, wherein a plurality of third flow holes are arranged on the second diversion area, and the plurality of third flow holes are arranged at intervals along the length direction of the fire row, and any relative Distributing ribs are formed between two adjacent third distributing holes; at least two fourth distributing holes are provided on the distributing ribs.
- 如权利要求17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。The fire row according to claim 17, wherein at least one of said distribution ribs comprises a first distribution wall and a second distribution wall inclined downward, and the bottom ends of said first distribution wall and said second distribution wall are connected , and the distance between the first divider wall and the second divider wall gradually increases outward from the junction of the first divider wall and the second divider wall.
- 如权利要求12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波浪形的凸起。The fire row according to claim 12, wherein, the inner wall of the first distribution hole is provided with wavy protrusions along the length direction of the distribution part.
- 如权利要求11至19中任意一项所述的火排,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。The fire row according to any one of claims 11 to 19, wherein, in the multi-layer metal mesh, the edges of at least one layer of metal mesh are bent to form a bent portion.
- 一种燃烧器,其中,所述燃烧器包括如权利要求1至20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。A burner, wherein the burner includes the fire row as claimed in any one of claims 1 to 20; the number of the fire rows is multiple, and the plurality of fire rows are arranged side by side.
- 一种燃气热水器,其中,所述燃气热水器包括如权利要求21所述的燃烧器。A gas water heater, wherein the gas water heater comprises the burner as claimed in claim 21.
Applications Claiming Priority (5)
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CN202120612600 | 2021-03-25 | ||
CN202220297475.1U CN217302792U (en) | 2021-03-25 | 2022-02-14 | Fire grate, combustor and gas water heater |
CN202220297475.1 | 2022-02-14 | ||
CN202220297482.1U CN217356881U (en) | 2021-03-25 | 2022-02-14 | Fire grate, combustor and gas water heater |
CN202220297482.1 | 2022-02-14 |
Publications (1)
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WO2023151159A1 true WO2023151159A1 (en) | 2023-08-17 |
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PCT/CN2022/083141 WO2023151159A1 (en) | 2021-03-25 | 2022-03-25 | Fire grate, burner and gas water heater |
PCT/CN2022/083134 WO2023151158A1 (en) | 2021-03-25 | 2022-03-25 | Burner piece, burner and gas water heater |
PCT/CN2022/083165 WO2022199700A1 (en) | 2021-03-25 | 2022-03-25 | Burner bar, manufacturing method therefor, burner, and water heater |
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PCT/CN2022/083134 WO2023151158A1 (en) | 2021-03-25 | 2022-03-25 | Burner piece, burner and gas water heater |
PCT/CN2022/083165 WO2022199700A1 (en) | 2021-03-25 | 2022-03-25 | Burner bar, manufacturing method therefor, burner, and water heater |
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US (1) | US20230408147A1 (en) |
EP (1) | EP4273449A4 (en) |
CN (6) | CN115200016A (en) |
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CN115200016A (en) * | 2021-03-25 | 2022-10-18 | 芜湖美的厨卫电器制造有限公司 | Fire grate, combustor and gas water heater |
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CN217302793U (en) | 2022-08-26 |
CN115200016A (en) | 2022-10-18 |
CN217356881U (en) | 2022-09-02 |
WO2023151158A1 (en) | 2023-08-17 |
CN217503668U (en) | 2022-09-27 |
CN115127104A (en) | 2022-09-30 |
EP4273449A1 (en) | 2023-11-08 |
CN217302792U (en) | 2022-08-26 |
WO2022199700A1 (en) | 2022-09-29 |
US20230408147A1 (en) | 2023-12-21 |
EP4273449A4 (en) | 2024-06-05 |
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