CN111853786A - Burner and hot water equipment with same - Google Patents

Abstract

The invention discloses a burner and hot water equipment with the same, wherein the burner comprises: the device comprises a shell, a gas inlet, a gas outlet and a gas outlet, wherein a shell cavity is arranged in the shell, and the upper part and the lower part of the shell are respectively provided with the gas inlet and the gas outlet which are communicated with; at least one combustor monomer, the combustor monomer is established the shell intracavity, the free upper portion of combustor is formed with the follow the burning fire hole that the burner port department exposes, be equipped with internal gas channel in the combustor monomer so that follow partly wind that the air intake got into passes through internal gas channel flows extremely the burning fire hole, the combustor is in the free lateral surface department of combustor is constructed the intercommunication the air intake with the external gas channel of burner port is so that follow another part wind that the air intake got into passes through external gas channel flows extremely the burning fire hole. The combustor provided by the embodiment of the invention has the advantages that the combustion performance is improved, and the volume is reduced.

Description

Burner and hot water equipment with same

Technical Field

The invention relates to the technical field of burners, in particular to a burner and hot water equipment with the same.

Background

Nowadays, environmental protection is increasingly required in countries around the world, especially in europe. In the water heater industry, laws and standards have been specified to govern the emission of flue gases from water heaters. In order to achieve the low nitrogen emission and economical cost requirements, the water-cooled combustion technology has been regarded as a secret from the market, and the water-cooled burner is an atmospheric natural mixing type combustion burner, so the structure of the conventional atmospheric natural mixing type burner has been continuously used in the related art, wherein the structure comprises an open structure and a structure simply connected by a pull rod.

The disadvantages of this structure are: the combustion intensity cannot be improved, a plurality of single combustion sheets are provided, all parts are forced to be designed to be large, the size is large, and the manufacturing cost is high; the combustion performance is poor, and after the mixed air is improved, the nitrogen oxides are reduced, but the flame stability is poor, and the flame is easy to leave the flame, difficult to ignite and difficult to transfer the flame.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, in one aspect, some embodiments of the present invention propose a combustor whose combustion performance is improved and which is advantageous in reducing the volume.

In another aspect, other embodiments of the present invention are directed to a water heating apparatus having the above burner.

A burner according to an embodiment of the first aspect of the invention comprises: the device comprises a shell, a gas inlet, a gas outlet and a gas outlet, wherein a shell cavity is arranged in the shell, and the upper part and the lower part of the shell are respectively provided with the gas inlet and the gas outlet which are communicated with; at least one combustor monomer, the combustor monomer is established the shell intracavity, the free upper portion of combustor is formed with the follow the burning fire hole that the burner port department exposes, be equipped with internal gas channel in the combustor monomer so that follow partly wind that the air intake got into passes through internal gas channel flows extremely the burning fire hole, the combustor is in the free lateral surface department of combustor is constructed the intercommunication the air intake with the external gas channel of burner port is so that follow another part wind that the air intake got into passes through external gas channel flows extremely the burning fire hole.

The combustor provided by the embodiment of the invention has the advantages that the combustion performance is improved, and the volume is reduced.

In addition, the burner according to the above embodiment of the present invention may further have the following additional technical features:

optionally, the burner unit includes a plurality of burner units, the plurality of burner units are sequentially arranged along a horizontal direction, and along a plurality of arrangement directions of the burner units, at least one side of each burner unit is provided with the external gas channel.

Further, the external gas channel shared by the two adjacent burner units is arranged between the two adjacent burner units.

According to some embodiments of the invention, the burner unit comprises: the combustion top plate is provided with the combustion fire hole; the combustion side plate is connected with the combustion top plate, the internal gas channel is limited by the combustion top plate and the combustion side plate, the external gas channel arranged between every two adjacent combustor single bodies is formed by at least separating every two adjacent combustion side plates, and the external gas channel arranged between the combustor single bodies and the shell is formed by at least separating every two adjacent combustion side plates and the shell.

Further, the combustion top plate is covered on the upper portion of the combustion side plate, the combustion top plate is provided with flanges extending downwards, and the flanges of two adjacent combustion top plates are spaced to form an outlet of the external gas channel.

Optionally, the combustion side plate comprises: first curb plate and second curb plate, first curb plate with the horizontal concatenation of second curb plate forms the hollow structure that extends along upper and lower direction, the burning roof plate lid is established hollow structure's upper portion is established two adjacent between the combustor monomer outside gas passage by adjacent at least first curb plate with the second curb plate separates to form, establishes between the combustor monomer the outside gas passage by first curb plate with between the shell at least first curb plate with the shell adjacent one with the shell separates to form.

The burner according to some alternative embodiments of the present invention further comprises: a liquid cooling tube extending into the housing, wherein the liquid cooling tube is adjacent to the burner unit, or the liquid cooling tube is connected to the burner unit and is closer to the combustion fire hole than to the inlet of the internal gas passage.

According to some embodiments of the invention, the intake vent comprises: a first tuyere through which the internal gas passage communicates to introduce gas; a second tuyere communicating with the external gas passage to introduce gas into the external gas passage.

Optionally, the burner has a first combustion mode and a second combustion mode, the burner has a combustion power in the first combustion mode that is less than the combustion power in the second combustion mode, the second tuyere introduces no gas to the outer gas passage in the first combustion mode and introduces gas to the outer gas passage in the second combustion mode.

In some embodiments of the present invention, the upper portion of the burner unit has a width direction and a length direction perpendicular to each other in a horizontal direction, and outlets of the external air passage are respectively provided at both sides of the burner unit along the width direction, and both the outlets extend along the length direction and are not communicated with each other.

Optionally, the inlet end of the internal gas passage is configured with an eductor structure for entraining gas into the internal gas passage.

The water heating device according to the second aspect of the embodiment of the invention comprises the burner according to the embodiment of the invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a combustor according to an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a burner unit and a liquid cooling tube of a burner according to an embodiment of the present invention;

FIG. 3 is a combustion schematic of a combustor according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a housing of a burner according to an embodiment of the invention;

FIG. 5 is a schematic structural view of an air distribution plate of a burner according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an air distribution plate of a burner according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a front side plate of a combustor according to an embodiment of the present invention;

FIG. 8 is a front view of a front plate of a combustor according to an embodiment of the present invention;

FIG. 9 is a top view of a front plate of a combustor according to an embodiment of the present invention;

fig. 10 is a left side view of a front side plate of a burner according to an embodiment of the present invention.

Reference numerals:

a combustor 100;

a housing 10; a housing cavity 101; an air inlet 102; a first tuyere 1021; air holes 1020; second tuyere 1022; a first segment 1023; a second section 1024; a combustion port 103;

a burner unit 20; a combustion fire hole 201; an internal gas passage 202; an external gas passage 203;

the combustion ceiling 21; a flange 211; a combustion-side plate 22; a first side panel 221; a second side panel 222;

a liquid cooling tube 30;

side panels 11; positioning a flange 1101; a grid plate 12; a front side plate 111; a rear side panel 112; a left side panel 113; a right side plate 114;

a partition structure 40; a partition flange 41; a partition tongue 411; a positioning gap 401;

a positioning structure 50; positioning holes 51; a mounting portion 60; and an ignition needle 610.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. Numerous changes, modifications, substitutions and alterations can be made to the embodiments by those skilled in the art without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

A burner 100 and a hot water apparatus having the same according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1, a combustor 100 according to some embodiments of the present invention may include: a housing 10 and a burner unit 20. In the embodiment shown in fig. 1, the number of the burner units 20 is plural, specifically eight, of course, the number of the burner units 20 is not limited thereto, for example, it may be one, or other numbers, that is, in the embodiment of the present invention, the burner units 20 may include at least one.

As shown in fig. 1 and 4, the housing 10 has a housing cavity 101 therein, and the burner unit 20 may be disposed in the housing cavity 101. The lower part of the housing 10 is provided with an air inlet 102, and the air inlet 102 is communicated with the housing cavity 101. The upper part of the casing 10 is provided with a combustion port 103, and the combustion port 103 is communicated with the casing cavity 101. As shown in fig. 1 to 3, a combustion fire hole 201 is formed in an upper portion of the burner unit 20, and the combustion fire hole 201 is exposed from the combustion port 103. Alternatively, the combustion fire hole 201 may be higher or lower than the combustion port 103, or may be flush with the combustion port 103. The burner unit 20 may be provided therein with an internal gas passage 202 such that a portion of the wind entering from the wind inlet 102 may flow to the combustion fire hole 201 through the internal gas passage 202, and may be combusted at the combustion fire hole 201. The flow direction of the wind in the internal gas passage 201 is shown by the arrow in fig. 3.

The burner 100 is configured with an external air passage 203 at the outer side of the burner unit 20, as shown in fig. 2 and 3, the external air passage 203 may communicate the intake vent 102 and the combustion port 103, so that another portion of the wind entering from the intake vent 102 may flow to the combustion fire hole 201 through the external air passage 203, promoting combustion at the combustion fire hole 201. The flow direction of the wind in the outer gas passage 202 is shown by the arrow in fig. 3.

Compared with the combustion device in the related art, the combustor 100 according to the embodiment of the invention provides a brand-new combustor principle structure, which can strengthen combustion, improve combustion conditions and improve combustion performance.

Specifically, the inventors have studied and found that, in the related art, there is only one gas passage provided in the combustion sheet in the combustion apparatus, and such a structure has many disadvantages such as: the gas combustion is completely primary air, secondary air is not provided, only simple primary air mixed combustion can be realized, and the combustion intensity cannot be improved; the number of burning single sheets is large, all parts are forced to be designed to be large, and the manufacturing cost is high; the combustion performance is poor, after the mixed air is improved, the nitrogen oxides are reduced, but the flame stability is poor, and the flame is easy to leave the flame, difficult to spread and difficult to spread; the performance of large and small fire is maintained by the ejection capacity of the nozzle, and the environment adaptability is poor; the combustion intensity cannot be increased due to the limitation of air quantity required by small-fire combustion; if the wind work of an external fan influences, the wind of the small fire is larger, in order to ensure the overall combustion performance, the combustion intensity of the large fire is smaller on the contrary, and the load cannot be larger; the combustion is of natural pumping type, the air speed is slow, the radiation intensity is high, the cooling effect is poor, and the combustion intensity cannot be increased.

The combustor 100 according to the embodiment of the present invention is theoretically optimized and solved by completely new design of the internal structure. Inside at combustor 100 not only has inside gas passage 202, but also has outside gas passage 203, at this moment, can carry out the primary air supply through inside gas passage 202, carry out the secondary air supply through outside gas passage 203, combustion air can adopt primary air to add the secondary air, can reach the effect of strengthening the burning, improving the burning operating mode, has improved combustion performance. The combustion speed of the burner 100 according to the embodiment of the present invention becomes fast, so that the temperature of the upper portion of the burner unit 20 becomes low and the entire load can be increased; meanwhile, the secondary air can play a cooling effect on the single burner body 20, and is also beneficial to reducing the upper temperature of the single burner body 20, so that the load can be further increased;

research shows that the burner 100 according to the embodiment of the present invention can strengthen the combustion strength by 50%, which is beneficial to volume reduction. Meanwhile, the air ratio is reduced, and the combustion performance is more stable. And the flow of secondary air causes the nitrogen oxides to drop instead. In addition, the combustion intensity of the single combustor 20 is improved, the load of the whole machine is also improved, and the cost of the whole machine can be reduced under the condition of the same load.

In some embodiments, the combustor 100 may further employ a gas driving device such as a blower to increase the air flow speed, change the suction force of the blower from primary air to secondary air, and increase the whole combustion air amount, so that the whole combustion intensity is enhanced and the combustion is more stable.

According to some embodiments of the present invention, the excess air ratio of each burner unit 20 is a and the combustion power is P, wherein a is 0.9. ltoreq. a.ltoreq.1.0 and P is 2.8 KW.ltoreq.3.2 KW. A large number of experiments prove that the excess air coefficient of the atmospheric burner 100 is too large, the flame is extremely unstable, and particularly, like a water-cooling fire hole which is a plane process, a flame stabilizing structure is not formed originally, and the flame performance is extremely poor. Therefore, the combustion effect is better when the excess air ratio of the burner 100 is controlled to be 0.9 to 1.0. In the aspect of single-chip load, a large amount of secondary air is added, so that the water cooling effect is optimized, and the single-chip load can be strengthened to 2.8-3.2 KW.

Referring to fig. 1 to 3, in some embodiments of the present invention, the burner unit 20 may include a plurality of burner units 20, and the plurality of burner units 20 may be arranged in a horizontal direction, for example, in a left-right direction as shown in fig. 1, or in other directions, such as a front-rear direction, etc. At least one side of each burner unit 20 may be provided with an external gas passage 203 along the arrangement direction of the plurality of burner units 20. That is, the external air passage 203 may be provided only on one side of the burner unit 20 in the arrangement direction, or the external air passage 203 may be provided on both sides of the burner unit 20 in the arrangement direction. Such a position arrangement of the outer gas passage 203 is more rational, and not only is it easy to implement, but also it is more convenient to arrange the burner unit 20.

Further, as shown in fig. 2 and 3, an external gas passage 203 common to the adjacent two burner units 20 may be disposed between the adjacent two burner units 20. That is to say, two adjacent burner units 20 may share the external gas channel 203 located between the two burner units 20, and there is no need to separately provide the respective external gas channel 203, so that the internal space utilization of the burner 100 may be improved, which is beneficial to further reducing the volume of the burner 100, and the interval between two adjacent burner units 20 may be relatively small, so that the overall combustion effect of the burner 100 is better.

According to some alternative embodiments of the present invention, the minimum extension of each of the outer gas passages 203 may be smaller than the minimum extension of the inner gas passage 202 in the arrangement direction of the plurality of burner units 20. Taking fig. 3 as an example, the plurality of burner units 20 are arranged in the left-right direction, and the minimum extension of each of the outside air passages 203 in the left-right direction may be smaller than the minimum extension of the inside air passage 202 in the left-right direction. Thus, the proportion of the primary air and the secondary air can be more reasonably controlled, the combustion performance can be further improved, and the flame can be stabilized.

Referring to fig. 1 to 3, in some embodiments of the present invention, the burner unit 20 may include: a combustion ceiling 21 and a combustion side plate 22. The combustion fire holes 201 may be provided in the combustion ceiling 21. The combustion side plate 22 is connected to the combustion ceiling 21, and the internal gas passage 202 is defined by the combustion side plate 22 and the combustion ceiling 21. When the burner unit 20 includes a plurality of burner units 20 and the external gas passage 203 is provided between two adjacent burner units 20, the external gas passage 203 provided between two adjacent burner units 20 may be formed by being spaced apart by at least two adjacent combustion side plates 22, and the external gas passage 203 provided between the burner unit 20 and the casing 10 may be formed by being spaced apart by at least the combustion side plates 22 and the casing 10.

For example, in some embodiments, the combustion ceiling plate 21 is inserted into an upper portion of the combustion side plate 22 to cover the upper portion of the combustion side plate 22, and the external gas passage 203 between two adjacent burner units 20 is formed by spacing the adjacent combustion side plates 22 of the two adjacent burner units 20. For another example, in other embodiments, the top combustion plate 21 is fitted over the upper portion of the side combustion plate 22 to cover the upper portion of the side combustion plate 22. The outer gas passage 203 between the adjacent two burner units 20 is formed by the adjacent combustion side plate 22 and the combustion top plate 21 of the adjacent two burner units 20 being spaced apart.

Alternatively, according to some specific examples of the present invention, as shown in fig. 3, an external air passage 203 is provided between each adjacent two burner units 20, and the external air passage 203 is also formed between the outermost burner unit 20 and the outer casing 10. At this time, the outer gas passage 203 and the burner units 20 may be alternately or alternately arranged along the arrangement direction of the plurality of burner units 20, and it has been found that this structure enhances combustion and has a better effect of improving combustion performance.

In other specific examples, the outer gas passage 203 and the burner unit 20 do not exhibit an alternating arrangement, for example, they exhibit an arrangement of the outer gas passage 203, the burner unit 20, the outer gas passage 203, and the like. At this time, adjacent two burners 100 may be connected to each other and spaced apart from the other two burner units 20 connected together. With this structure, each burner unit 20 can also supply the primary air and the secondary air, and can also enhance combustion and improve combustion performance.

Alternatively, as shown in fig. 2 and 3, the combustion ceiling 21 may be covered on the upper portion of the combustion side plate 22, the combustion ceiling 21 may be provided with a downwardly extending burring 211, and the burring 211 of adjacent two combustion ceilings 21 may be spaced apart to form an outlet of the outer gas passage 203. The flanging 211 not only can play a role in enhancing the strength of the burner unit 20, but also can guide the gas to flow upwards, which is beneficial to further improving the performance of the burner 100.

With continued reference to fig. 2 and 3, the combustion side plate 22 may include: a first side panel edge 221 and a second side panel 222. The first side plate edge 221 and the second side plate 222 are horizontally spliced to form a hollow structure extending in the up-down direction, that is, the first side plate edge 221 and the second side plate 222 may be horizontally distributed and spliced together, and the spliced structure may be a hollow structure extending in the up-down direction. The combustion ceiling 21 may be covered on the upper portion of the hollow structure.

The external gas channel 203 provided between the adjacent two burner units 20 may be formed by being spaced apart from at least the adjacent first and second side plate edges 221 and 222, and the external gas channel 203 provided between the burner units 20 and the outer case 10 may be formed by being spaced apart from the outer case 10 by at least one of the first and second side plate edges 221 and 222 adjacent to the outer case. For example, for the burner unit 20 at the left side, when the first side plate edge 221 is disposed at the left side, the first side plate edge 221 adjacent to the outer case 10 may be spaced apart from the outer case 10 to form the outer gas passage 203. For the burner unit 20 at the right side, when the second side plate 222 is disposed at the right side, the second side plate 222 adjacent to the casing 10 may be spaced apart from the casing 10 to form the outer gas passage 203. The external air passage 203 provided between the adjacent two burner units 20 may be formed by spacing the second side plate 222 of the burner unit 20 on the left side and the first side plate edge 221 of the burner unit 20 on the right side. The structure is convenient to manufacture and has high structural stability.

Referring to fig. 1-3, in some embodiments of the invention, the combustor 100 further includes a liquid cooling tube 30, the liquid cooling tube 30 extending into the housing 10. The liquid-cooling pipe 30 may be adjacent to the burner unit 20, or the liquid-cooling pipe 30 may be connected to the burner unit 20.

Thus, the liquid cooling pipe 30 can exchange heat with the burner unit 20 to directly cool the burner unit 20, and when the combustion fire hole 201 is burnt, the heat generated by radiation is transferred to the burner unit 20 to indirectly exchange heat with the liquid cooling pipe 30. Meanwhile, the air is supplied from the lower part of the combustor monomer 20 in a cold air form, so that an air cooling effect can be formed, and the liquid cooling effect can be enhanced. That is, the air may be changed into cold air after passing through the liquid cooling pipe 30, and when providing air during combustion, the burner unit 20 is also cooled, and simultaneously the flame is also cooled, so that the temperature of the periphery of the burner unit 20 is reduced, a strong air cooling effect is formed, the water cooling effect is improved, and the load of the burner can be further increased.

As shown in fig. 2 and 3, the liquid cooling pipe 30 is located closer to the combustion fire hole 201 than the inlet of the internal gas passage 202, and in this case, the liquid cooling pipe 30 may be disposed at an upper portion of the burner unit 20, and the liquid cooling pipe 30 may cool an upper portion of the burner 100 having a higher temperature, and may improve a cooling effect. Optionally, in some specific examples of the invention, the liquid cooling tube 30 is a water cooling tube.

As shown in fig. 5, in some embodiments of the present invention, the intake vent 102 may include a first vent 1021 and a second vent 1022, and the internal gas passage 202 may communicate with the first vent 1021 to introduce gas into the internal gas passage 202 through the first vent 1021. The second tuyere 1022 may communicate with the external gas channel 203 so that gas can be introduced into the external gas channel 203 through the second tuyere 1022. The intake air of the inner gas passage 202 and the outer gas passage 203 can be divided, so that interference between the two passages with each other can be reduced, the intake effect can be improved, and the improvement of the combustion performance can be facilitated.

Alternatively, in some embodiments of the present invention, the combustor 100 may have a first combustion mode and a second combustion mode, and the combustion power of the combustor 100 in the first combustion mode may be less than the combustion power of the combustor 100 in the second combustion mode. The second tuyere 1022 may not introduce gas to the outer gas channel 203 in the first combustion mode and may introduce gas to the outer gas channel 203 in the second combustion mode.

Thus, in the first combustion mode in which the combustion power is relatively low, gas, such as primary air and gas, may be introduced through the inner gas passage 202, and the burner unit 20 may be combusted with the supply of the primary air. In the second combustion mode in which the combustion power is relatively low, not only gas may be introduced through the inner gas passage 202, but also gas, such as secondary air, may be introduced through the outer gas passage 203, and the burner unit 20 may perform gas combustion at the combustion fire hole 201 under the supply of the primary air and the secondary air.

It will be appreciated that, to facilitate the introduction of gas, an injection structure may be provided at the inlet end of the internal gas passage 202 for injecting gas into the internal gas passage 202. For example, at the inlet end of the internal gas passage 202, a nozzle for injecting gas into the internal gas passage 202 is provided, and in this case, the internal gas passage 202 may constitute a passage of the atmospheric natural jet combustion principle. When the gas is injected into the internal gas passage 202 from the nozzle, primary air injection is performed at the throat of the internal gas passage 202, and the primary air can enter the internal gas passage 202 under the injection action. During the upward flow of the gas, the gas and the primary air are mixed sufficiently, and combustion occurs at the combustion fire holes 201. In fig. 3, a is a combustion inner flame, and B is an injection gas. In the above structure, the stability of the flame in the combustion generated during the combustion at the combustion fire hole 201 is determined by the primary air, and when the combustion is intensified, only the secondary air is increased, and the primary air is slightly reduced, so that the stability of the combustion is more favorably ensured.

As shown in fig. 1, the upper portion of the burner unit 20 has a width direction and a length direction perpendicular to each other in the horizontal direction, and in the example shown in fig. 1, the width direction is the left-right direction and the length direction is the front-rear direction. In the width direction, outlets of the external air passage 203 are respectively provided at both sides of the burner unit 20, the two outlets extend in the length direction, and the two outlets are not communicated with each other.

The housing 10 of the burner 100 according to embodiments of the invention is described below in connection with some embodiments of the invention. The casing 10 provides a new burner housing, which can effectively supply air required for combustion to the burner unit 20 and control the air required for combustion.

As shown in fig. 4 and 5, the housing 10 according to an embodiment of the present invention may include: a side coaming 11 and a wind distribution plate 12. The side panels 11 may enclose a mounting space penetrating up and down for mounting the burner unit 20 of the burner 100. The air distribution plate 12 can be blocked at the lower end opening of the installation space, the air distribution plate 12 can be positioned above the burner unit 20, and the air distribution plate 12 and the side enclosing plate 11 can define a shell cavity 101.

As shown in fig. 5 and 6, the air distribution plate 12 is provided with a first air port 1021 and a second air port 1022, and the first air port 1021 is communicated with the internal gas passage 202 in the burner unit 20 to introduce gas into the internal gas passage 202 through the first air port 1021; the outer gas channel 203 located at the side of the burner unit 20 is communicated with the second tuyere 1022 to introduce gas to the outer gas channel 203 through the second tuyere 1022. Wherein the first tuyere 1021 and the second tuyere 1022 are spaced apart, so that interference of the outer gas passage 203 and the inner gas passage 202 with each other can be reduced.

The shell 10 of the burner 100 according to the embodiment of the invention is provided with the side coaming 11 and the air distribution plate 12, which not only can play roles of air distribution and air control, but also the air distribution plate 12 can finely distribute air to optimize combustion and strengthen combustion, and can limit the burner unit 20 in the shell to provide a stable and reliable installation position for the burner unit 20, when the burner unit 20 is combusted, air can be supplied through the internal gas channel 202, and gas can be supplied through the external gas channel 203, so that the utilization rate of air is close to 100%, the combustion strengthening effect is achieved, the combustion working condition is improved, the combustion performance is improved, and in some embodiments, the combustion strength can be strengthened by 50%. Meanwhile, the shell 10 can also play a role in integral collection and transportation, which is beneficial to reducing the cost and the volume.

In the embodiment of the present invention, the number of the burner units 20 provided in the housing is not particularly limited, and may be one or more. For example, in the embodiment shown in fig. 1 to 3, a plurality of burner units 20 may be disposed in the installation space, and the plurality of burner units 20 may be sequentially arranged in the left-right direction. The first tuyere 1021 may include a plurality of tuyeres, and the second tuyere 1022 may also include a plurality of tuyeres. The plurality of first air ports 1021 and the plurality of second air ports 1022 may be arranged alternately along the arrangement direction, that is, the plurality of first air ports 1021 and the plurality of second air ports 1022 are arranged alternately along the left-right direction, the second air ports 1022 are arranged between two adjacent first air ports 1021, and the first air ports 1021 are arranged between two adjacent second air ports 1022. Wherein, the plurality of first tuyeres 1021 are in one-to-one correspondence with the internal gas passages 202 of the plurality of burner units 20. Thus, the gas can be introduced into the inner gas passage 202 of each burner unit 20 through the corresponding first tuyere 1021, and the gas flow effect is good.

Alternatively, as shown in fig. 5 and 6, each of the first air ports 1021 may include a plurality of air holes 1020, and the plurality of air holes 1020 may be spaced apart in the front-rear direction. The air inlet can be dispersed, and the structure is more adaptive to the structure of the burner unit 20 in some embodiments, for example, the structure corresponds to the air distributing rods of the burner unit 20 one by one, and the air distributing effect is better.

As shown in fig. 6, the second tuyere 1022 may extend in a long strip shape in the front-rear direction, the second tuyere 1022 includes first and second sections 1023 and 1024 alternately arranged in the front-rear direction and communicating with each other, and a width of the first section 1023 in the left-right direction is smaller than a width of the second section 1024 in the left-right direction. In the front-rear direction, the first section 1023 corresponds to the wind holes 1020, and the second section 1024 is located between two adjacent wind holes 1020. The structural layout is more reasonable, which is not only beneficial to the installation of the burner single body 20 and the air distribution plate 12, but also can make the opening of the second air inlet 1022 be relatively larger, which is beneficial to improving the air intake.

With continued reference to fig. 6, the air holes 1020 may be round holes, which may facilitate air intake and, in some embodiments, may also facilitate the introduction of nozzles, which may facilitate uniform injection of air.

According to some embodiments of the present invention, as shown in fig. 1, a partition structure 40 may be disposed on the side wall 11, and the partition structure 40 may be used to partition a plurality of burner units 20, so that not only the installation reliability of the burner units 20 may be enhanced, but also it is beneficial to separate the plurality of burner units 20 according to a predetermined interval and position the burner units 20 at an interval, thereby forming a stable and reliable combustion structure. The present invention is not particularly limited with respect to the specific structure of the partition structure 40, as long as the function of partitioning the plurality of burner units 20 is satisfied.

Referring to fig. 1, 4 and 5, in some embodiments of the present invention, the partition structure 40 may include a partition flange 41, and the partition flange 41 is provided at the upper end of the side gusset 11 and extends into the installation space. The separation flange 41 may be stopped between the adjacent two burner elements 20. Thus, two adjacent burner units 20 can be separated by the separation flange 41, the separation effect is good, and the separation structure 40 is convenient to arrange.

Further, an outlet of the external air channel 203 may be formed between the upper portions of two adjacent single burners 20, the front edge and the rear edge of the upper end of the side gusset 11 are respectively provided with a separation flange 41, and the two separation flanges 41 cooperate with the single burners 20 to separate the two adjacent outlets. That is, the separation flange 41 may be engaged with each burner unit 20 to block the outlets of the external gas passages 203 located at both sides of the burner unit 20. In this way, the burner 100 forms a stable ignition at both ends of the burner unit 20, and after the ignition is passed through, the ignition can be matched with the first air port 1021 of the air distribution plate 12 for introducing the primary air, which is more beneficial to the overall control of the performance.

As shown in fig. 4, 5, and 7, each partition flap 41 may include a plurality of partition tongues 411, and the plurality of partition tongues 411 may be distributed in the left-right direction. Adjacent two burner units 20 may be separated by a separation tongue 411. Particularly, in manufacturing, the shape of the separation tongue 411 can be matched with the shape of the joint of the burner unit 20, so that the manufacturing is more convenient, and the separation effect on the burner unit 20 is good.

Further, as shown in fig. 1 and 4, a single burner 20 may be disposed between every two partition tongues 411, a positioning gap 401 is formed at the root portions of every two adjacent partition tongues 411 at intervals, and the positioning gap 401 may be used to position the single burner 20 in the up-down direction, so that the single burner 20 is more accurately installed in the up-down direction, the occurrence of skew is reduced, and the single burner 20 is firmer and the performance of the burner 100 is more stable regardless of bumping or impact of transportation.

Further, the burner unit 20 may be positioned by other structures besides the positioning gap 401. Alternatively, referring to fig. 1, 4 and 7, in some embodiments of the present invention, the side wall plate 11 is further provided with a positioning structure 50, and the positioning structure 50 can be used for positioning the burner unit 20 in the up-down direction. Further, the positioning structure 50 may include a positioning hole 51 extending from top to bottom along the side enclosing plate 11, and the burner unit 20 may extend into the positioning hole 51 to cooperate with the positioning hole 51 to achieve positioning along the up-down direction, so that the positioning effect is good, and the installation of the burner unit 20 is more reliable.

Alternatively, at least one of the front and rear sides of the installation space may be provided with the positioning holes 51, and the positioning holes 51 corresponding to each burner unit 20 may include at least two. Thus, the burner unit 20 can be positioned by the plurality of positioning holes 51, and the positioning effect is better. Alternatively, the two positioning holes 51 may be disposed on the same side of the housing 10, or disposed on different sides of the housing 10, and may be flexibly disposed according to actual situations.

As shown in fig. 7 and 10, the lower end of the side gusset 11 may be provided with a positioning flange 1101, and the positioning flange 1101 extends into the installation space. The positioning flange 1101 may be used to position the bottom of the burner unit 20. This can further improve the mounting reliability and accuracy of the burner unit 20.

Referring to fig. 1, 4, 7 and 8, the side shroud 11 is provided at an upper portion thereof with a mounting portion 60, and the mounting portion 60 may be used to mount an ignition needle 610. Thus, the side coaming 11 can provide a stable and accurate position for the ignition needle 610 and the burner unit 20 to ignite and feed back, which is beneficial to improving the combustion effect. The specific structure of the mounting portion 60 is not particularly limited, and alternatively, the mounting portion 60 may be a mounting hole through which a threaded fastener may be inserted to connect the fire needle 610 and the side gusset 11, so that the mounting structure is reliable and the mounting operation is convenient.

The connection manner of the air distribution plate 12 and the side coaming 11 is not particularly limited in the present invention, and optionally, in some embodiments of the present invention, one of the front end, the rear end, the left end and the right end of the air distribution plate 12 may be in threaded connection with the side coaming 11, and the other is in abutting connection with the side coaming 11. That is, the front end and the rear end of the air distribution plate 12 can be in threaded connection with the side wall plate 11, and the left end and the right end of the air distribution plate 12 are in abutting connection with the side wall plate 11; or the left end and the right end of the air distribution plate 12 are in threaded connection with the side wall plate 11, and the front end and the rear end of the air distribution plate 12 are in abutting connection with the side wall plate 11. The structure is not only reliable in connection, but also convenient in connection operation.

As shown in fig. 5, according to some embodiments of the present invention, the side panel 11 may include: a front side panel 111, a rear side panel 112, a left side panel 113, and a right side panel 114. The front side plate 111 and the rear side plate 112 are arranged at a distance from each other, the left side plate 113 is arranged on the left side of the front side plate 111, the front edge of the left side plate 113 is connected with the left edge of the front side plate 111, and the rear edge of the left side plate 113 is connected with the left edge of the rear side plate 112. The right side plate 114 is disposed at the right side of the front side plate 111, the front edge of the right side plate 114 is connected to the right edge of the front side plate 111, and the rear edge of the right side plate 114 is connected to the right edge of the rear side plate 112. The lower ends of the front side plate 111, the rear side plate 112, the left side plate 113 and the right side plate 114 are connected to the grid plate 12. Thus, the side enclosing plate 11 can enclose with the grid plate 12 through the front side plate 111, the right side plate 114, the left side plate 113 and the right side plate 114 to form a frame structure with an open upper end, and the burner unit 20 can be stably installed inside.

Alternatively, the edges of the front side plate 111, the rear side plate 112, the left side plate 113, and the right side plate 114 adjacent to each other may be connected by a threaded fastener. For example, as shown in fig. 4 and 5, left and right edges of the front side plate 111 and left and right edges of the rear side plate 112 may be provided with mounting flanges, respectively, on which screw holes may be provided. Thus, the strength of the front plate 111 and the rear plate 112 can be enhanced, and the mounting reliability and the sealing property can be improved.

As shown in fig. 5, 7 and 8, the front side plate 111 and the rear side plate 112 are provided with a positioning gap 401 and two positioning holes 51 extending in the vertical direction from top to bottom on the same vertical line, so that the gas can be strictly controlled.

According to the hot water apparatus of the embodiment of the present invention, including the burner 100 according to the embodiment of the present invention, or the housing 10 of the burner 100 according to the embodiment of the present invention, the hot water performance of the hot water apparatus according to the embodiment of the present invention is improved.

Other constructions and operations of the water heating apparatus according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "particular embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples without interference or contradiction.

Claims (12)

1. A burner, comprising:

the device comprises a shell, a gas inlet, a gas outlet and a gas outlet, wherein a shell cavity is arranged in the shell, and the upper part and the lower part of the shell are respectively provided with the gas inlet and the gas outlet which are communicated with;

at least one burner unit, the burner unit is arranged in the shell cavity, a burning fire hole exposed out of the burning hole is formed at the upper part of the burner unit, an internal gas channel is arranged in the burner unit, so that a part of wind entering from the air inlet flows to the burning fire hole through the internal gas channel,

the combustor is provided with an external gas channel communicated with the air inlet and the combustion port at the outer side surface of the combustor single body, so that the other part of air entering from the air inlet flows to the combustion fire hole through the external gas channel.

2. The burner according to claim 1, wherein the burner unit comprises a plurality of burner units, the plurality of burner units are sequentially arranged in a horizontal direction, and at least one side of each burner unit is provided with the external gas passage along the arrangement direction of the plurality of burner units.

3. The burner according to claim 2, wherein the outer gas passage common to two adjacent burner units is provided between the two adjacent burner units.

4. The burner of claim 1, wherein the burner unit comprises:

the combustion top plate is provided with the combustion fire hole;

the combustion side plate is connected with the combustion top plate, the internal gas channel is limited by the combustion top plate and the combustion side plate, the external gas channel arranged between every two adjacent combustor single bodies is formed by at least separating every two adjacent combustion side plates, and the external gas channel arranged between the combustor single bodies and the shell is formed by at least separating every two adjacent combustion side plates and the shell.

5. The burner as claimed in claim 4, wherein the combustion ceiling cover is provided at an upper portion of the combustion side plate, the combustion ceiling is provided with a downwardly extending burring, and the burring of adjacent two of the combustion ceilings are spaced apart to form an outlet of the outer gas passage.

6. The burner of claim 4, wherein the combustion side plate comprises:

first curb plate and second curb plate, first curb plate with the horizontal concatenation of second curb plate forms the hollow structure that extends along upper and lower direction, the burning roof plate lid is established hollow structure's upper portion is established two adjacent between the combustor monomer outside gas passage by adjacent at least first curb plate with the second curb plate separates to form, establishes between the combustor monomer the outside gas passage by first curb plate with between the shell at least first curb plate with the shell adjacent one with the shell separates to form.

7. The burner of claim 1, further comprising:

a liquid cooling tube extending into the housing, wherein the liquid cooling tube is adjacent to the burner unit, or the liquid cooling tube is connected to the burner unit and is closer to the combustion fire hole than to the inlet of the internal gas passage.

8. The burner of claim 1, wherein the air intake comprises:

a first tuyere through which the internal gas passage communicates to introduce gas;

a second tuyere communicating with the external gas passage to introduce gas into the external gas passage.

9. The burner of claim 8, wherein the burner has a first combustion mode and a second combustion mode, a combustion power of the burner in the first combustion mode is less than a combustion power in the second combustion mode, the second tuyere introduces no gas to the outer gas passage in the first combustion mode and introduces gas to the outer gas passage in the second combustion mode.

10. The burner according to claim 1, wherein the upper portion of the burner unit has a width direction and a length direction perpendicular to each other in a horizontal direction, outlets of the external air passage are respectively provided at both sides of the burner unit in the width direction, both the outlets extend in the length direction, and both the outlets do not communicate with each other.

11. The burner of any of claims 1-10, wherein the inlet end of the internal gas passage is configured with an eductor structure for injecting gas into the internal gas passage.

12. A hot water appliance, characterized in that it comprises a burner according to any one of claims 1-11.

Images