CN214307116U

CN214307116U - Economical thick and thin burning fire row, combustor and water heater of saving type

Info

Publication number: CN214307116U
Application number: CN202023060100.3U
Authority: CN
Inventors: 吴德忠
Original assignee: Jiangsu Yemao Kitchen & Bath Technology Co ltd
Current assignee: Jiangsu Yemao Kitchen & Bath Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-28
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to an economical and economical thick and thin burning fire grate, a burner and a water heater, wherein the fire grate comprises two side plates and a burning top surface, the two side plates and the burning top surface enclose an inner chamber, which comprises an injection channel, a flow equalizing chamber and a flow dividing chamber which are communicated from bottom to top, a gap between two adjacent fire grates arranged side by side is divided into a thick burning air outlet gap above and an air inlet gap below, the thick burning air outlet gap and the air inlet gap are not communicated with each other, the side wall of the flow dividing chamber is provided with a plurality of thick burning air outlet structures and a plurality of air inlet structures, and the thick burning air outlet structures and the air inlet structures are not interfered with each other; the dense combustion gas outlet gap is communicated with the flow dividing chamber through a dense combustion gas outlet structure and is used for dividing gas into the dense combustion gas outlet gap, and the top of the dense combustion gas outlet gap is opened and forms a dense fire hole; the air inlet gap is communicated with the shunting chamber through an air inlet structure and is used for supplementing air to the shunting chamber, and a light fire hole is formed in the combustion top surface at the top of the shunting chamber.

Description

Economical thick and thin burning fire row, combustor and water heater of saving type

Technical Field

The utility model relates to a fire row, combustor that realize dark and light burning, this fire row molding is exquisite, and the subassembly is small in quantity, only needs a part can realize dark and light gas reposition of redundant personnel, is showing and has saved raw materials and manufacturing procedure, has reduced manufacturing cost.

Background

The dense-dilute burner is a mixed burner combining dense flame and dilute flame, the air coefficient of the dilute flame is high, the gas is insufficient, and the flame is short; the dense flame has a low air coefficient, insufficient air, and a long flame. The rich-lean combustion mode realized by the rich-lean burner can obviously reduce the emission of nitrogen oxides, and is most widely applied to burning appliances such as gas water heaters.

Publication No. CN205480981A discloses a rich-lean burner, which comprises a fire grate, wherein the fire grate is composed of an inner side plate, an outer side plate and a central plate group, the central plate group further comprises a central side plate and a central inner plate, and the inner side plate and the outer side plate are two pieces. The single fire grate disclosed in the patent document has many parts, high raw material cost and assembly cost, and high manufacturing cost of the whole burner.

Publication No. CN111442272A discloses a dense-dilute flame burner monomer (namely a fire grate), which comprises an air inlet flow dividing part, a dilute flame burning part and two dense flame burning parts, wherein a flow dividing cavity of the air inlet flow dividing part is positioned in the dilute flame burning part, a dense flame gas outlet device is communicated with a connecting hole, and the dilute flame burning part at the top of the flow dividing cavity forms a dilute flame gas cavity; the thick flame combustion part is arranged at two sides of the thin flame combustion part and is attached, the bulges and the semi-bulges are attached to the wall plate of the thin flame combustion part, and the wall plate of the thin flame combustion part and the wall plate of the thick flame combustion part between the bulges and between the bulges form a thick flame combustion hole; a gap is arranged between the wall plate of the thick flame combustion part and the wall plate of the light flame combustion part, the gap at the upper part of the thick flame gas outlet device is a gas and air mixing cavity, and the gap at the lower part is a primary air channel. Due to the adoption of the structure, the lower end of the gap between the thick flame combustion part and the thin flame combustion plate is provided with the primary air channel, so that primary air is provided for thick flame combustion. The fire grate comprises three relatively independent parts, the three parts need independent configuration molds, the raw material cost, the processing cost and the assembly cost are higher, the manufacturing cost of the combustor is high, and although the thick and thin combustion is realized, the manufacturing cost of the product is also obviously improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an economy saving type thick and thin burning fire is arranged, combustor is provided to above-mentioned prior art, through ingenious unsmooth molding design, simplifies the component spare part that single fire was arranged, both can realize thick and thin gas reposition of redundant personnel, reaches again and is showing the purpose that reduces fire row cost.

The utility model provides a technical scheme that above-mentioned problem adopted does: an economical and economical thick and thin combustion fire grate comprises two side plates and a combustion top surface, wherein the two side plates are oppositely arranged on two sides of the combustion top surface, an inner chamber is defined by the two side plates and the combustion top surface and comprises an injection channel, a flow equalizing chamber and a flow dividing chamber which are communicated from bottom to top, a gap between two adjacent fire grates arranged side by side is divided into an upper thick combustion air outlet gap and a lower air inlet gap, the thick combustion air outlet gap and the air inlet gap are not communicated with each other, a plurality of thick combustion air outlet structures and a plurality of air inlet structures are arranged on the side wall of the flow dividing chamber, and the thick combustion air outlet structures and the air inlet structures are not interfered with each other; the concentrated combustion gas outlet gap is communicated with the flow dividing chamber through the concentrated combustion gas outlet structure and is used for dividing gas into the concentrated combustion gas outlet gap, and the top of the concentrated combustion gas outlet gap is opened and forms a concentrated fire hole; the air inlet gap is communicated with the shunting chamber through the air inlet structure and is used for supplementing air to the shunting chamber, and a light fire hole is formed in the combustion top surface at the top of the shunting chamber.

Preferably, the setting height of the rich combustion gas outlet structure on the fire grate is not higher than the setting height of the air inlet structure on the fire grate. Thereby weakening or avoiding the mutual interference of the air inlet flow and the gas outlet flow.

Preferably, an outward convex part is formed on the side wall of the shunting chamber from inside to outside, and two adjacent fire rows arranged side by side are in sealing contact with the outward convex part to separate a gap between the two adjacent fire rows into an upper rich combustion air outlet gap and a lower rich combustion air inlet gap which are not communicated with each other, so that air in the air inlet gap completely enters the shunting chamber.

Preferably, the outer convex part comprises a continuous convex rib which continuously meanders along the transverse direction of the fire row, so that the continuous convex rib is provided with a plurality of high positions and a plurality of low positions, the rich combustion air outlet structure is arranged at the low positions, the opening of the rich combustion air outlet structure is upward, and the air inlet structure is arranged at the high positions, the opening of the rich combustion air outlet structure is downward. Thereby the thick combustion air outlet structure is communicated with the thick combustion air outlet gap, and the air inlet structure is communicated with the air inlet gap.

Preferably, the air inlet structure and the rich combustion outlet structure are arranged in a staggered mode.

Preferably, a protrusion is further formed on the side wall of the flow dividing chamber, the protrusion is located in the rich combustion gas outlet gap, and the protrusion plays a role in flow equalization of the gas in the rich combustion gas outlet gap.

Preferably, the side wall of the shunting chamber is also formed with an inclined surface as a flow guide surface of the air flow, so that the air and the fuel gas in the shunting chamber can be uniformly mixed.

Preferably, the upper edge of reposition of redundant personnel lateral wall sets up the dense flame arch, and two adjacent fire rows the dense flame arch is in dense burning is given vent to anger the clearance top and is held up mutually, gives vent to anger the top of clearance with dense burning and opens a plurality of dense fire holes that separate into a plurality of interval distribution to give vent to anger the clearance top at dense burning and form a plurality of dense flames.

Another object of the present invention is to provide a burner, which comprises a plurality of fire rows combined side by side, wherein the fire rows are as defined in any one of claims 1 to 8; wind shields are arranged below the fire rows and provided with a plurality of wind holes; and a partition plate is arranged on the outer side of the fire grate at the most end part, and the rich combustion air outlet gap is formed between the partition plate and the outward side wall of the fire grate.

Another object of the present invention is to provide a water heater, including the burner, the water tank and the air-out unit of the present invention. The water heater is selected from a household gas quick water heater, a gas heating water heater and a steam heat source machine.

Compared with the prior art, the utility model has the advantages of:

(1) the fire row that this application designed can realize gas reposition of redundant personnel, air supply to arrange the top surface at the fire and realize the thick and thin burning, thereby help reducing nitrogen oxide production volume in the combustion products.

(2) The fire row that this application designed burns the top surface and is used for light burning, and the clearance between row of fire and the fire row is used for realizing thick burning, realizes from this that thick and thin flame interval sets up, consumes rich air in the light flame through thick flame to hold light flame, prevent to take off the fire. The integral combustion is more stable, and the flame rigidity is improved.

(3) Air inlet structure and dense burning give vent to anger the structure and set up simultaneously on the flow distribution room lateral wall in this application, in order to reduce as far as possible and mix the gas and give vent to anger the mutual interference of air current and air admission air current, set up dense burning and give vent to anger the structure and must not be higher than air inlet structure, and the two must stagger each other in the direction of height.

(4) This application is through setting up the outer convex part of tortuous on the lateral wall of reposition of redundant personnel room, and utilize the outer convex part of adjacent fire row to seal contact each other, thereby give vent to anger clearance and air admission clearance with the dense burning of isolating the clearance between the fire row, thereby let the air that draws from the below introduce the reposition of redundant personnel room through the air admission structure, thereby dilute in the reposition of redundant personnel room, more specifically dilute the premixed gas in the reposition of redundant personnel room of dense burning air outlet structure top, thereby realize the bigger light burning of air-fuel ratio at the top surface of burning at reposition of redundant personnel room top.

(5) The utility model provides an outer convex part is arranged along fire and is transversely zigzag extended, has a plurality of high positions and a plurality of low level, gives vent to anger the structure setting through letting thick burning and makes progress at low level and opening, the air inlet structure sets up at high level and opening up to let the air supply to the flow distribution chamber be later than giving vent to anger the gas reposition of redundant personnel to thick burning in advance in the clearance.

(6) The fire row of this application design only includes two curb plates and a burning top surface on the subassembly, and the three can be through the direct compression molding of a slice material, and the fire row can be processed as single part promptly, need not the equipment to show the reduction in material cost, processing cost, obviously reduce the cost of product, make the product obtain the popularization on market more easily.

Drawings

FIG. 1 is a front view of a fire grate in an embodiment of the present invention;

FIG. 2 is a top view of an embodiment of the present invention;

FIG. 3 is a right side view of an embodiment of the present invention;

FIG. 4 is a perspective view of an embodiment of the fire grate of the present invention;

FIG. 5 is a cross-sectional view AA of the fire row of FIG. 1;

FIG. 6 is a cross-sectional view BB of the fire row of FIG. 1;

fig. 7 is a perspective view of two adjacent fire rows in the embodiment of the present invention;

fig. 8 is a front view of two adjacent fire rows in an embodiment of the present invention;

FIG. 9 is a cross-sectional view AA in FIG. 8;

FIG. 10 is a cross-sectional view BB of FIG. 8;

fig. 11 is a perspective view of a burner according to embodiment 2 of the present invention;

fig. 12 is a perspective view of a burner of embodiment 2 of the present invention from another perspective;

fig. 13 is a bottom view of the burner according to embodiment 2 of the present invention;

in the figure, a side plate 1, a combustion top surface 2, an injection channel a, a flow equalizing chamber b, a flow dividing chamber c, a rich combustion air outlet gap 3, an air inlet gap 4, a rich combustion air outlet structure 5, an air inlet structure 6, a rich fire hole 7, a lean fire hole 8, an outer convex part 9, a rich flame protrusion 10, a wind shield 11, a wind hole 1101, a partition plate 12, a shell 13, a support plate 14 and a cooling hole 1401 are arranged.

Detailed Description

The present invention will be described in further detail with reference to the following drawings, which are illustrative and are not to be construed as limiting the present invention. The description of the present embodiment is corresponding to the accompanying drawings, and the description related to the orientation is also based on the description of the accompanying drawings, and should not be construed as limiting the scope of the present invention.

Example 1

The embodiment relates to a thick and thin burning fire row, including two curb plates 1 and burning top surface 2, two curb plates 1 are located 2 both sides of burning top surface, and two curb plates 1 and burning top surface 2 enclose into an inner chamber, include from bottom to top link up draw passageway an, flow equalizing chamber b, diverging chamber c, draw gas and air formation premixed gas through drawing passageway a, premixed gas rises through flow equalizing chamber b and gets into diverging chamber c. An outward convex part 9 is formed on the side wall of the flow distribution chamber c from inside to outside, the outward convex parts 9 of two adjacent fire rows are arranged side by side and are butted and in continuous sealing contact with each other, so that a gap between the two adjacent fire rows is divided into a rich combustion air outlet gap 3 and an air inlet gap 4 which are not communicated with each other, the rich combustion air outlet gap 3 is positioned at the upper part of the outward convex part 9, and the air inlet gap 4 is positioned at the lower part of the outward convex part 9.

And a dense combustion air outlet structure 5 and an air inlet structure 6 are arranged on the side wall of the flow distribution chamber c. The rich combustion air outlet gap 3 is communicated with the shunting chamber c through the rich combustion air outlet structure 5, and a part of premixed gas in the shunting chamber c enters the rich combustion air outlet gap through the rich combustion air outlet structure 5. Further, the rich flame can be formed by forming the rich fire hole 7 at the open position of the top of the rich combustion exhaust gap 3. The air intake gap 4 is communicated with the shunting chamber c through the air intake structure 6, and air in the air intake gap 4 can be guided to the shunting chamber c, so that premixed gas remained in the shunting chamber c is diluted, and diluted premixed gas forms light combustion on the combustion top surface 2.

In order to uniformly burn flame, the light fire holes 8 are arranged on the combustion top surface 2 and are distributed in a row. The upper edge of the side wall of the shunting chamber c is provided with convex dense flame bulges 10, the dense flame bulges 10 of two adjacent fire rows are mutually butted at the top of the dense combustion air outlet gap 3, so that a plurality of dense flame holes 7 at intervals are formed at the top of the dense combustion air outlet gap 3, and each dense flame hole 7 correspondingly forms a dense combustion flame.

And a bulge is also formed on the side wall of the flow distribution chamber c and positioned in the dense combustion gas outlet gap 3, so that the flow equalization effect of the premixed gas entering the dense combustion gas outlet gap 3 is realized. In addition, the side wall of the shunting chamber c can be also formed with an inclined surface as a flow guide surface in the process of ascending the airflow in the shunting chamber.

The setting of the rich combustion air outlet structure 5 and the air inlet structure 6 in this embodiment is the key of this application, and during the combustion operation, the shunting chamber c needs to simultaneously realize the shunting of the premixed gas and the air supplement, so that the mutual interference of the gas shunting and the air supplement must be reduced. In the embodiment, the setting height of the rich combustion gas outlet structure 5 on the fire row is lower than the setting height of the air inlet structure 6 on the fire row, or at least is kept flat. Referring to fig. 6-10, the outer convex portion 9 includes a continuous rib continuously meandering along the fire row in a transverse direction, so that the continuous rib is formed by connecting a plurality of arch structures, and thus has a plurality of high positions and a plurality of low positions, the high positions correspond to the tops of the arch structures, the low positions correspond to transition valleys between adjacent arch structures, the rich combustion air outlet structure 5 is arranged at the low position and has an upward opening, the air inlet structure 6 is arranged at the high position and has a downward opening, and therefore, the rich combustion air outlet structure 5 is arranged below the air inlet structure 6, and the rich combustion air outlet structure 5 and the air inlet structure 6 are staggered with each other in the transverse direction of the fire row. In this embodiment, the rich combustion air outlet structure 5 and the air inlet structure 6 are hole-shaped structures, and are easy to process.

The thick and thin combustion fire grate with the structure only comprises the combustion top surface 2 and the two side plates 1, and the two side plates can be integrally pressed and molded by one piece of material, so that the material is saved, the assembly process is simplified, and the industrial production cost is lower.

Example 2

The embodiment relates to a combustor, including a plurality of fire rows, a plurality of fire rows are combined side by side, fixed mounting is in casing 13, and casing 13 inner wall sets up backup pad 14, and the fire row both sides that set up side by side support on backup pad 14, set up cooling hole 1401 on backup pad 14, and cooling hole 1401 evenly arranges on backup pad 14 for the circulation of air around the fire row is up and down, not only can in time cool off backup pad 14, can also evacuate the cyclone vortex of casing 13 edge corner department.

The fire row adopts the fire row described in embodiment 1, the outer side of the fire row at the end part is provided with a partition plate 12, a rich combustion air outlet gap 3 is also formed between the partition plate 12 and the side wall of the fire row at the end part, and a rich fire hole 7 is also formed between the partition plate 12 and the rich flame protrusion 10.

Wind shields 11 are further arranged below the fire rows, wind holes 1101 are formed in the wind shields 11, and the wind holes 1101 are at least also formed in the edges of the wind shields 11 so as to achieve air distribution and uniform air intake on the whole wind shields 11.

Example 3

The embodiment relates to a water heater, such as a household gas instantaneous water heater, a gas heating water heater and a steam heat source machine, which comprises the burner, the water tank and the air outlet unit in the embodiment 2. The air outlet unit can be an upper air draft fan or a lower air draft fan. The water tank is positioned above the burner.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides an economical type rich and thin burning fire row which characterized in that: the novel high-temperature combustion chamber comprises two side plates (1) and a combustion top surface (2), wherein the two side plates (1) are oppositely arranged on two sides of the combustion top surface (2), an inner chamber is defined by the two side plates (1) and the combustion top surface (2) and comprises an injection channel (a), a flow equalizing chamber (b) and a flow dividing chamber (c) which are communicated from bottom to top, a gap between two adjacent fire rows which are arranged side by side is divided into an upper concentrated combustion air outlet gap (3) and a lower air inlet gap (4), the concentrated combustion air outlet gap (3) and the air inlet gap (4) are not communicated with each other, a plurality of concentrated combustion air outlet structures (5) and a plurality of air inlet structures (6) are arranged on the side wall of the flow dividing chamber (c), and the concentrated combustion air outlet structures (5) and the air inlet structures (6) are not interfered with each other;

the concentrated combustion gas outlet gap (3) is communicated with the flow dividing chamber (c) through the concentrated combustion gas outlet structure (5) and is used for dividing gas into the concentrated combustion gas outlet gap (3), and the top of the concentrated combustion gas outlet gap (3) is opened and forms a concentrated fire hole (7); the air inlet gap (4) is communicated with the shunting chamber (c) through the air inlet structure (6) and is used for supplementing air to the shunting chamber (c), and a light fire hole (8) is formed in a combustion top surface (2) located at the top of the shunting chamber (c).

2. The economical thick and thin burning fire grate of claim 1, which is characterized in that: the setting height of the concentrated combustion air outlet structure (5) on the fire row is not higher than that of the air inlet structure (6) on the fire row.

3. The economical thick and thin burning fire grate of claim 2, wherein: an outer convex part (9) is formed on the side wall of the flow distribution chamber (c) from inside to outside, and two adjacent fire rows arranged side by side are in sealing contact with the outer convex part (9) to separate a gap between the two adjacent fire rows into a dense combustion air outlet gap (3) and an air inlet gap (4) which are not communicated with each other from top to bottom.

4. The economical thick and thin burning fire grate of claim 3, wherein: the outer convex part (9) includes along the horizontal continuous winding's of fire bank continuous protruding muscle, makes continuous protruding muscle has a plurality of high positions and a plurality of low level, dense burning is given vent to anger structure (5) and is set up low level and opening are upwards, air inlet structure (6) set up high level and opening are downwards.

5. The economical thick and thin burning fire grate of claim 1 or 4, wherein: the air inlet structure (6) and the concentrated combustion air outlet structure (5) are arranged in a staggered mode.

6. The economical thick and thin burning fire grate of claim 1, which is characterized in that: and a bulge is further formed on the side wall of the flow distribution chamber (c), and the bulge is positioned in the rich combustion air outlet gap (3).

7. The economical thick and thin burning fire grate of claim 1, which is characterized in that: the side wall of the shunting chamber (c) is also formed with an inclined surface as a flow guide surface of the airflow.

8. The economical thick and thin burning fire grate of claim 1, which is characterized in that: dense flame bulges (10) are arranged at the upper edge of the side wall of the shunting chamber (c), the dense flame bulges (10) of two adjacent fire rows mutually abut against the top of the dense combustion air outlet gap (3), and the top opening of the dense combustion air outlet gap (3) is separated into a plurality of dense flame holes (7) which are distributed at intervals.

9. A burner, characterized by: the fire grate comprises a plurality of fire grates which are combined side by side, and the fire grates are economical thick and thin combustion fire grates as defined in any one of claims 1-8; wind shields (11) are arranged below the fire rows, and the wind shields (11) are provided with a plurality of wind holes (1101); and a partition plate (12) is arranged on the outer side of the fire grate at the most end part, and the rich combustion air outlet gap (3) is formed between the partition plate (12) and the outward side wall of the fire grate.

10. A water heater, characterized in that: comprising the burner, the water tank and the air outlet unit of claim 9.