CN213119072U - Single burner and gas water heater with same - Google Patents

Abstract

The utility model relates to the technical field of water heaters, in particular to a single burner and a gas water heater with the same, which comprises a gas flow passage part and a fire outlet plate which are communicated, wherein the gas flow passage part is provided with an injection inlet for injecting gas and air; the fire outlet plate is provided with a plurality of rows of fire outlet holes, wherein the fire outlet plates at least comprise a row of first fire holes and a row of second fire holes, the first fire holes are strip fire holes, the second fire holes are arranged at the side of the first fire holes, and the height of the fire ejected from the second fire holes is smaller than that of the fire ejected from the first fire holes. When the single burner of the utility model is burning, the second fire hole sprays small flame, the first fire hole sprays large flame, the small flame sprayed by the second fire hole can stabilize the large flame of the first fire hole, so that the burning flame is not easy to fall off and leave the flame; the gas and the air are fully mixed, the content of carbon monoxide in the combustion flue gas is low, the combustion noise is low, and no yellow flame is generated. The utility model discloses a gas heater goes out water temperature stable, can improve user's use and experience.

Description

Single burner and gas water heater with same

Technical Field

The utility model relates to a technical field of water heater, more specifically relates to a monomer combustor and have its gas heater.

Background

The burner is one of the key parts of gas water heater and gas heating furnace, mainly to promote the contact and mixing of fuel and air and the place where the violent heat releasing reaction occurs, and is the important part for releasing the potential energy of fuel. The individual burners are assembled to form a burner assembly, and the individual burners are designed by strictly controlling the profiling depth of the fire holes, the fire hole width and the arrangement of the fire holes, because the arrangement has great influence on the outlet velocity distribution of the gas-air mixture. At present, the single burner often adopts the square fire hole of parallel overall arrangement: although the square fire holes are distributed more smoothly, the resistance of the fire hole outlet is increased due to the shape of only a single combustion flame, the phenomenon that the flame is higher or unstable easily occurs during combustion of the burner, the height difference also easily occurs during combustion of the flame, and improper design can cause the problems of higher CO in tempering, yellow flame and flue gas, combustion noise and resonance.

Chinese patent CN2018220394758 discloses an arc fire hole surface burner single sheet, which comprises a fire grate shell and an arc fire hole panel, wherein the arc fire hole panel is positioned at an opening of the fire grate shell, and an injection pipe is formed in the fire grate shell through punching; wherein, arc fire hole panel sets up two sets of labyrinth arc fire holes along the central axis symmetry, can provide great fire hole area, has that the hot strength is low, the burning is more abundant, the more stable characteristics of flame. However, because only a single combustion flame shape is available, the flame is easily raised, unstable and height-different during combustion, and improper design can cause problems of backfire, yellow flame, high CO in flue gas, combustion noise and resonance.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem, the single burner and the gas water heater with the single burner are provided, the fire outlets with various sizes are combined, the small flame sprayed by the second fire hole can stabilize the large flame of the first fire hole, and the flame is stable and is not easy to fall or leave.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the gas flow passage part is provided with an injection inlet for injecting gas and air; the fire outlet plate is provided with a plurality of rows of fire outlet holes, wherein the fire outlet plate at least comprises a row of first fire holes and a row of second fire holes, the first fire holes are strip fire holes, the second fire holes are arranged beside the first fire holes, and the height of the fire ejected from the second fire holes is smaller than the height of the fire ejected from the first fire holes.

In one embodiment, the fire outlet plates at least comprise first fire outlet plates positioned on two sides and second fire outlet plates positioned between the first fire outlet plates positioned on two sides, the second fire holes are formed in the first fire outlet plates, and the first fire holes are formed in the second fire outlet plates or the first fire holes are formed in the first fire outlet plates and the second fire outlet plates.

In one embodiment, the first fire holes include a first fire bar hole formed in the second fire outlet plate and a second fire bar hole formed in the first fire outlet plate and the second fire outlet plate, and the second fire holes are formed in both sides of the first fire bar hole.

In one embodiment, the second fire holes are circular fire holes, and the diameter size of the circular fire holes is smaller than the width size of the strip-shaped fire holes.

In one embodiment, the width of the first fire hole ranges from 2mm to 15mm, and the diameter of the second fire hole ranges from 0.5mm to 8 mm.

In one embodiment, the second fire outlet plate is concavely formed with a pressure groove, and the pressure groove is one of a V-shaped pressure groove, a cylindrical pressure groove and a prismatic pressure groove.

In one embodiment, the gas runner part comprises a contraction section runner part, a mixing section runner part, a diffusion section runner part and a top runner part which are sequentially communicated, the injection inlet is communicated with the contraction section runner part, and the fire outlet is communicated with the top runner part.

In one embodiment, the outer side of the top runner part is provided with a flame stabilizing pressing shape, the joint of the contraction section runner part and the tangent plane of the mixing section runner part is provided with a U-shaped pressing groove, and the mixing section runner part is in a circular truncated cone structure with an expansion angle of 2-30 degrees.

In one embodiment, the single burner comprises a first side plate and a second side plate which are riveted, the gas flow channel part is arranged between the first side plate and the second side plate, and the fire outlet plate is connected between the first side plate and the second side plate.

Monomer combustor, the technological effect who produces does: the fire outlet holes with various sizes and shapes are arranged to obtain various combustion flame shapes, the small flame sprayed by the second fire hole can stabilize the large flame of the first fire hole, and the flame is stable and is not easy to fall or leave.

The utility model also provides a gas heater, include as before the monomer combustor.

Gas heater, the technological effect who produces does: because the flame of the monomer burner is stable and is not easy to fall or leave the flame, the water outlet temperature of the gas water heater is stable, and the use experience of a user can be improved.

Drawings

FIG. 1 is a perspective view of a mono burner;

FIG. 2 is a front view of the mono burner;

FIG. 3 is a left side view of the mono burner;

FIG. 4 is a top view of the cell burner;

FIG. 5 is a perspective view of a mono burner in another embodiment;

FIG. 6 is a front view of a unit burner in another embodiment;

FIG. 7 is a top view of a single burner in another embodiment;

FIG. 8 is a schematic view I of a single burner forming process;

FIG. 9 is a schematic view II of a single burner molding process;

in the drawings: 1-a gas flow channel portion; 11-an injection inlet; 12-a convergent section runner section; 13-a mixing section runner section; 14-a diffuser section runner section; 15-top runner section; a 16-U-shaped press groove; 17-flame stabilizing pressure; 2-fire outlet plate; 21-a first fire plate; 22-a second fire plate; 23-a second fire hole; 24-a first strip fire hole; 25-second strip fire holes; 26-pressing a groove; 3-a first side plate; 4-second side plate.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples

As shown in fig. 1 to 4, the embodiment of the mono-body burner of the present invention includes a gas flow passage portion 1 and a fire outlet plate 2, which are arranged in a communicating manner, wherein the gas flow passage portion 1 is provided with an injection inlet 11 for injecting gas and air; go out the fire board 2 and be equipped with multiseriate and go out the fire hole, wherein include at least that one is listed as first fire hole and one is listed as second fire hole 23, and first fire hole is the strip fire hole, and second fire hole 23 is located first fire hole side and the height that the second fire hole 23 jetted out the flame is less than the height that first fire hole jetted out the flame. The strip fire hole of this embodiment can be rectangle fire hole, vertical fire hole such as V type fire hole, level to V type fire hole, and is not limited to the strip fire hole shape of above-mentioned listing, can spray the strip fire hole of other shapes of great size flame and all can be applicable to the utility model discloses a fire hole is fired to the strip.

In the embodiment, the gas is sprayed to the injection inlet 11 of the burner at a high speed through the nozzle, so that the primary air and the gas are mixed together and enter, the gas flows to the fire outlet after being fully mixed in the gas flow passage part 1, the combustible gas is sprayed out through the fire outlet and is ignited to generate flame, and the secondary air is continuously supplemented to ensure that the burner can continuously burn. During the burning, the second flame hole 23 erupts little flame, and big flame is erupted to first flame hole, and the big flame of first flame hole can be stabilized to the little flame that second flame hole 23 sprayed for burning flame is more stable, difficult falling fire, and difficult flame. It should be noted that the size of the flame sprayed from the first fire hole and the second fire hole 23 can be adjusted by adjusting the shape and/or size of the first fire hole and the second fire hole.

In one embodiment, the fire outlet plates 2 at least include first fire outlet plates 21 located at two sides and second fire outlet plates 22 located between the first fire outlet plates 21 located at two sides, the second fire holes 23 are formed in the first fire outlet plates 21, the first fire holes can be formed in the second fire outlet plates 22, and can also be formed in the first fire outlet plates partially formed in the second fire outlet plates 22, when the first fire holes are formed: (1) all the first fire holes may be provided in the second fire exit plate 22; (2) all the first fire holes may be provided in the first fire exit plate 21 and the second fire exit plate 22; (3) a part of the first fire holes may be formed in the second fire exit plate 22, and the remaining part of the first fire holes may be formed in the first fire exit plate 21 and the second fire exit plate 22. When the flame stabilizing device is implemented, the effect of stabilizing flame can be realized only by ensuring that the second flame holes 23 are arranged beside the first flame holes to ensure that the small flame stably lives the large flame.

Preferably, the second fire holes 23 of the present embodiment are formed in the first fire plate 21, a portion of the first fire holes are formed in the second fire plate 22, and a portion of the first fire holes are formed in the first fire plate 21 and the second fire plate 22. The second goes out fiery board 22 in the first fire hole of part, and remaining first fire hole partly lies in first play fiery board 21, partly lies in second play fiery board 22, and first fire hole side or periphery are arranged in to second fire hole 23, and little flame is erupted in second fire hole 23, and big flame is erupted in first fire hole, and little flame can stabilize big flame for flame is more stable, is difficult for appearing falling the fire or from the phenomenon of flame.

In one embodiment, the first fire holes include a first fire hole strip 24 disposed on the second fire outlet plate 22 and a second fire hole strip 25 disposed on the first fire outlet plate 21 and the second fire outlet plate 22, and the second fire holes 23 are disposed on two sides of the first fire hole strip 24, as shown in fig. 1 and 4. The first strip fire holes 24 are arranged on the second fire outlet plate 22, and spaces are reserved for arranging the second fire holes 23 at two ends of the first strip fire holes 24; the second strip fire holes 25 penetrate through the first fire outlet plate 21 and the second fire outlet plate 22, are partially positioned on the first fire outlet plate 21 and are partially positioned on the second fire outlet plate 22, so that the fire outlet area can be increased, and the flame is more stable; but first strip fire hole 24 and second strip fire hole 25 interval of this embodiment set up, and the little flame that so second fire hole 23 jetted out all plays stable effect to the big flame that first strip fire hole 24, second strip fire hole 25 jetted out.

In the embodiment, the plurality of rows of fire holes are not distributed at equal intervals, but a plurality of rows of fire holes form fire hole groups, and a plurality of groups of fire hole groups are distributed at equal intervals; for each group of fire hole groups, the first strip-shaped fire holes 24 and the second strip-shaped fire holes 25 are arranged at equal intervals, and the head end and the tail end of each group of fire hole groups are the second strip-shaped fire holes 25; and a second fire hole 23 is arranged between every two adjacent fire hole groups. By the arrangement, the purpose of reducing the gas consumption rate on the premise of not influencing the combustion effect of the combustor can be realized.

In one embodiment, the second fire holes 23 are circular fire holes, and the diameter of the circular fire holes is smaller than the width of the strip-shaped fire holes. The flame that circular fire hole erupted is concentrated, can play better flame stabilization effect, nevertheless does not regard as the utility model discloses a restrictive regulation, other second fire holes like regular shapes such as ellipse, rhombus, square also are applicable to the utility model discloses.

In one embodiment, the first fire holes have a width ranging from 2mm to 15mm, and the second fire holes 23 have a diameter ranging from 0.5mm to 8 mm. The first strip-shaped fire hole 24 and the second strip-shaped fire hole 25 are equal in width and unequal in span, and the diameter of the second fire hole 23 is smaller than that of the first fire hole, so that the second fire hole 23 ejects a small flame, the first fire hole ejects a large flame, and the small flame can stabilize the large flame, so that the flame is more stable, and the phenomenon of fire falling or flame leaving is not easy to occur; in the embodiment, when the width of the first fire hole is 0.56mm and the diameter of the second fire hole 23 is 0.8mm, a better flame stabilizing effect can be obtained. However, the width range of the first fire hole and the diameter range of the second fire hole 23 are not limited to the above numerical ranges, and may be adaptively adjusted according to the application while ensuring that the diameter of the second fire hole 23 is smaller than that of the first fire hole.

In one embodiment, the second fire plate 22 is recessed with an indent 26, and the indent 26 is one of a V-shaped indent, a cylindrical indent, and a prismatic indent. The purpose of setting up indent 26 lies in, and the formation of mixing the gas blocks, improves the flow direction of mixing the gas, in certain space, forms the vortex region of different rules, can make gas and air further intensive mixing even, is favorable to mixing the gas burning, reaches the purpose that reduces the burning flame face. It should be noted that the shape of the indent 26 of the present embodiment may be irregular shapes other than the V-shaped indent 26, the cylindrical indent 26, and the prismatic indent 26, but the V-shaped indent 26 may be used to obtain the best blocking effect.

In one embodiment, the gas channel portion 1 includes a contraction section channel portion 12, a mixing section channel portion 13, a diffusion section channel portion 14 and a top channel portion 15 which are sequentially communicated, the injection inlet 11 is communicated with the contraction section channel portion 12, and the fire outlet is communicated with the top channel portion 15, as shown in fig. 1 and 2. During implementation, gas and air enter the contraction section flow passage part 12 through the injection inlet 11, are fully mixed in the mixing section flow passage part 13, and the flow rate of mixed gas in the diffusion section flow passage part 14 is reduced, and the pressure of the mixed gas rises, so that the pressure of the mixed gas at the second fire hole 23 and the first fire hole at the top of the combustor reaches a required pressure value.

In one embodiment, a U-shaped pressure groove 16 is arranged at the connection part of the section of the convergent section runner part 12 and the section of the mixing section runner part 13, and the expansion angle of the mixing section runner part 13 is a circular truncated cone structure with an angle of 2-30 degrees. It should be noted that the U-shaped crush slot 16 is preferable to reduce the cut-off area at the throat of the convergent section runner part 12 and the mixing section runner part 13, so that the gas and the air are fully mixed and then enter the mixing section runner part 13, and is not limited to the provision; the divergent angle range of the mixing section flow channel part 13 is preferably set to achieve sufficient mixing of the gas and the air in the mixing section flow channel part 13 to ensure the best combustion condition, and is not limited to the above.

In another embodiment, a flame holding indentation 17 is provided on the outer side of the top channel portion 15, and the flame holding indentation 17 is recessed inward, as shown in fig. 5 to 7; so set up, in the process of continuously burning, when getting into the secondary air from the combustor, steady burning flame lets it be difficult for leaving the flame, reduces the secondary air and to the influence of burning, effectively guarantees the steady operation of water heater. However, it should be noted that the flame holding pressure 17 of the present embodiment can be used alone or in combination with other embodiments to stabilize the flame.

In one embodiment, the mono-block burner is a one-piece structure made of a metallic material. The monomer combustor preparation material of this embodiment can select metal materials such as stainless steel metal material, aluminium casting, but not limited to metal material, and other materials that have better high temperature resistance and better processability also should be applicable to the utility model discloses. Wherein, integrated into one piece structure is including riveting first curb plate 3 and the second curb plate 4 that sets up, and gas flow channel portion 1 is located between first curb plate 3 and the second curb plate 4, goes out the fire board and connects between first curb plate 3 and second curb plate 4.

Specifically, the single burner of the present embodiment is integrally formed by the following method: selecting a metal flat plate with better ductility, and pressing the metal flat plate by using a stamping die to form symmetrical and corresponding same concave states; after the stamping forming is completed, the fire outlet plate 2 at the top of the single burner is pressed with a groove 26, after the stamping forming is completed, a blanking die is used for stamping a fire hole and/or a flame stabilizing pressure shape 17 on the fire outlet plate 2, and the fire hole and the flame stabilizing pressure shape 17 are distributed at corresponding positions, as shown in fig. 8; and (3) reshaping the semi-finished product again by using a reshaping die, and bending by using a bending die after the reshaping is completed, wherein the side edge of the second side plate is wrapped and riveted by the bending edge arranged on one side edge of the first side plate as shown in fig. 9. The gas flow channel part 1 is formed between the first side plate and the second side plate, spot welding is added at the corresponding position, the gas tightness of the gas flow channel part 1 is guaranteed, and gas leakage is prevented.

In another embodiment, a plurality of single burners are regularly arranged to form a burner for being applied to the gas water heater, and the single burners in the above embodiment emit stable flame, are not easy to fall into fire or leave the flame, so that the temperature of the outlet water of the gas water heater is stable, and the use experience of users can be improved.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. The single burner comprises a gas flow passage part (1) and a fire outlet plate (2) which are communicated, wherein the gas flow passage part (1) is provided with an injection inlet (11) for injecting gas and air; the fire plate is characterized in that the fire plate (2) is provided with a plurality of rows of fire holes, wherein the fire holes at least comprise a row of first fire holes and a row of second fire holes (23), the first fire holes are strip-shaped fire holes, the second fire holes (23) are arranged beside the first fire holes, and the height of the fire ejected from the second fire holes (23) is smaller than that of the fire ejected from the first fire holes; the fire outlet plates (2) at least comprise first fire outlet plates (21) positioned on two sides and second fire outlet plates (22) positioned between the first fire outlet plates (21) positioned on two sides, the second fire holes (23) are formed in the first fire outlet plates (21), the first fire holes are formed in the second fire outlet plates (22) or the first fire holes are formed in the first fire outlet plates (21) and the second fire outlet plates (22); first fire hole is including locating first strip fire hole (24) that the second goes out fire board (22) and locating second strip fire hole (25) that first goes out fire board (21) and second go out fire board (22), the both sides in first strip fire hole (24) are located in second fire hole (23), first strip fire hole (24) and second strip fire hole (25) interval set up.

2. The single burner as claimed in claim 1, wherein the second fire holes (23) are circular fire holes having a diameter dimension smaller than a width dimension of the bar-shaped fire holes.

3. The cell burner as claimed in claim 2, wherein the first fire holes have a width ranging from 2mm to 15mm and the second fire holes (23) have a diameter ranging from 0.5mm to 8 mm.

4. The cell burner according to any one of claims 1 to 3, wherein the second flame plate (22) is internally formed with a pressure groove (26), and the pressure groove (26) is one of a V-shaped pressure groove, a cylindrical pressure groove, and a prismatic pressure groove.

5. The single burner as claimed in claim 1, wherein the gas runner section (1) comprises a contraction section runner section (12), a mixing section runner section (13), a diffusion section runner section (14) and a top runner section (15) which are sequentially communicated, the injection inlet (11) is communicated with the contraction section runner section (12), and the fire outlet is communicated with the top runner section (15).

6. The single-body burner of claim 5, wherein a flame stabilizing pressure shape (17) is arranged on the outer side of the top runner part (15), a U-shaped pressure groove (16) is arranged at the connection position of the section of the convergent-section runner part (12) and the section of the mixing-section runner part (13), and the mixing-section runner part (13) is of a circular truncated cone structure with an expansion angle of 2-30 degrees.

7. The mono-burner according to claim 1, comprising a first side plate (3) and a second side plate (4) which are riveted, wherein the gas flow passage part (1) is arranged between the first side plate (3) and the second side plate (4), and the fire outlet plate (2) is connected between the first side plate (3) and the second side plate (4).

8. A gas water heater comprising a mono burner as claimed in any one of claims 1 to 7.

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