WO2023151159A1 - Grille d'incendie, brûleur et chauffe-eau à gaz - Google Patents

Grille d'incendie, brûleur et chauffe-eau à gaz Download PDF

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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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WO
WIPO (PCT)
Prior art keywords
fire row
fire
distributing
holes
area
Prior art date
Application number
PCT/CN2022/083141
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English (en)
Chinese (zh)
Inventor
陈文风
黄官贤
梁国荣
Original Assignee
芜湖美的厨卫电器制造有限公司
美的集团股份有限公司
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Publication of WO2023151159A1 publication Critical patent/WO2023151159A1/fr

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

Abstract

La présente demande divulgue une grille d'incendie, un brûleur et un chauffe-eau à gaz. La grille d'incendie comprend un corps de grille d'incendie unique, une base de support et un panneau de combustion. Dans la solution technique de la présente demande, la structure d'origine d'un panneau de combustion supérieur pourvu de trous d'incendie est changée en une structure de formation du panneau de combustion à l'aide d'une pluralité de couches de mailles métalliques. Au moyen d'un tel agencement, l'intensité de la pression de gaz dans la grille d'incendie peut être réduite, ce qui permet de réduire l'intensité de chaleur par unité de zone du panneau de combustion. De plus, au moyen du panneau de combustion sous la forme de multiples couches de mailles métalliques, la zone de trou d'incendie d'une sortie d'incendie de la grille d'incendie est augmentée, de telle sorte qu'après la sortie du panneau de combustion, un écoulement de gaz, qui est préalablement mélangé, est en outre mélangé avec de l'air au niveau du panneau de combustion pour former un gaz suffisamment mélangé ; et enfin, une flamme stable et uniforme est formée au-dessus du panneau de combustion. La charge thermique de la grille d'incendie fournie dans la présente demande est significativement augmentée, la plage d'adaptabilité de la grille d'incendie est également étendue de manière correspondante et ainsi, la performance du gaz de combustion émis pendant la combustion instantanée est meilleure et la quantité d'oxyde d'azote générée après combustion est également inférieure.
PCT/CN2022/083141 2021-03-25 2022-03-25 Grille d'incendie, brûleur et chauffe-eau à gaz WO2023151159A1 (fr)

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Application Number Priority Date Filing Date Title
CN202120612600 2021-03-25
CN202220297475.1 2022-02-14
CN202220297482.1U CN217356881U (zh) 2021-03-25 2022-02-14 火排、燃烧器和燃气热水器
CN202220297475.1U CN217302792U (zh) 2021-03-25 2022-02-14 火排、燃烧器和燃气热水器
CN202220297482.1 2022-02-14

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PCT/CN2022/083165 WO2022199700A1 (fr) 2021-03-25 2022-03-25 Barre de brûleur, son procédé de fabrication, brûleur et chauffe-eau
PCT/CN2022/083134 WO2023151158A1 (fr) 2021-03-25 2022-03-25 Pièce de brûleur, brûleur et chauffe-eau à gaz

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PCT/CN2022/083134 WO2023151158A1 (fr) 2021-03-25 2022-03-25 Pièce de brûleur, brûleur et chauffe-eau à gaz

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EP (1) EP4273449A4 (fr)
CN (6) CN115200016A (fr)
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EP4273449A4 (fr) 2024-06-05
CN217302792U (zh) 2022-08-26
EP4273449A1 (fr) 2023-11-08
WO2022199700A1 (fr) 2022-09-29
CN217356881U (zh) 2022-09-02
CN217302793U (zh) 2022-08-26
CN115200016A (zh) 2022-10-18
CN115127104A (zh) 2022-09-30
CN217503668U (zh) 2022-09-27
US20230408147A1 (en) 2023-12-21

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