Combustor, combustor assembly and water heater

Abstract

The utility model provides a burner, a burner assembly and a water heater, the burner comprises a body, the body comprises a gas part and a burning part, the gas part is provided with a gas channel, the top wall of the burning part is provided with a plurality of fire hole groups, and the plurality of fire hole groups are respectively communicated with the gas channel; the fire hole set comprises a plurality of first fire holes and flame stabilizing holes, and the flame stabilizing holes are formed between every two adjacent first fire holes in the multiple first fire holes. And flames at the flame stabilizing holes can heat the roots of flames at the first fire holes, the stability of the flames at the first fire holes is improved, and the probability that the flames break away from the combustor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water heater technical field, specifically, relate to a kind of combustor, combustor assembly and water heater. BACKGROUND

[0002] Currently, in the related art, combustor can be applied to module furnace, fireplace, water heater, steam generator and other heating, heating water and steam supply device. Combustor has gas passage and multiple groups of fire hole, when combustor works, mixed gas is usually directly discharged by fire hole after passing through gas passage, when using combustor, to reduce flame height, realize low flame combustion, the amount of air participating in combustion needs to be increased, but due to the increase of air quantity, it will increase excess air coefficient, and then lead to increase the probability of flame flash-off at fire hole. SUMMARY

[0003] The utility model at least solves one of the technical problems existing in prior art or related art.

[0004] Therefore, the first aspect of the utility model provides a kind of combustor.

[0005] The second aspect of the utility model provides a kind of combustor assembly.

[0006] The third aspect of the utility model provides a kind of water heater.

[0007] Therefore, the first aspect of the utility model provides a kind of combustor, combustor includes body, body includes gas part and combustion part, gas part is provided with gas passage, the top wall of combustion part is provided with multiple groups of fire hole group, multiple groups of fire hole group are communicated with gas passage respectively;Fire hole group includes multiple first fire hole and flame stabilizing hole, flame stabilizing hole is arranged between adjacent two first fire holes in multiple first fire holes.

[0008] The burner provided by the application comprises a body, the body comprises a gas part and a combustion part, the gas part is provided with a gas passage, the gas passage can realize stable supply of gas and improve the stability of the burner. The top wall of the combustion part is provided with a plurality of groups of fire hole groups, the plurality of groups of fire hole groups are respectively communicated with the gas passage, so that the gas can be uniformly distributed into each group of fire holes, and the full use of the gas is ensured. By arranging the plurality of groups of fire hole groups, there is a gap between the adjacent two groups of fire hole groups, and when the burner works, the flames between the adjacent two groups of fire hole groups have a gap, the contact area of the flame and the air is increased, the combustion of the gas is more sufficient, and the combustion efficiency of the burner is improved. The group of fire holes comprises a plurality of first fire holes and a flame stabilizing hole, the flame stabilizing hole is arranged between the adjacent two first fire holes in the plurality of first fire holes, the heating efficiency of the burner is improved, and when the burner works, the flame generated by the flame stabilizing hole can heat the flame at the first fire hole, so that the combustion of the flame at the first fire hole is more stable, the stability of the flame at the first fire hole is improved, the flame stabilization of the flame at the first fire hole is realized, and the probability of flame lift-off is reduced.

[0009] The flame generated by the flame stabilizing hole can effectively stabilize the flame at the first fire hole, and also can increase the contact area of the flame and the air, so as to improve the combustion efficiency. The flame of the flame stabilizing hole can heat the root temperature of the flame of the first fire hole, and also makes the temperature distribution of each part of the flame of the burner more uniform.

[0010] Specifically, by increasing the flame stabilizing hole between the adjacent two first fire holes in the plurality of first fire holes, when the burner works, the uniformity of the flame emitted by the burner is improved, and the combustion efficiency of the burner and the stability of the equipment are improved. In addition, the design of the plurality of groups of fire hole groups can further improve the uniformity of combustion and realize full combustion of the gas.

[0011] Specifically, the diameter of the flame stabilizing hole can be relatively small, so that the flow resistance of the gas at the flame stabilizing hole is large, the flow rate of the gas is reduced, the root of the flame at the first fire hole is heated, the probability of lift-off is reduced, the flame can form a stable combustion environment around it, and the stability of the entire combustion process is improved.

[0012] Specifically, the design of the first fire hole and the flame stabilizing hole can reduce the probability of lift-off of the burner, and by reasonably designing the position and size of the flame stabilizing hole, the gas and the air can be better mixed in the combustion part, the occurrence of backfire and lift-off is reduced, and the stability of combustion is further improved.

[0013] Wherein, due to the stable and sufficient combustion of the flames of the multiple groups of fire hole groups, the burner can produce higher thermal efficiency, convert more fuel gas into heat energy, and thus improve energy utilization efficiency. The design of the flame stabilizing holes helps to prevent accidental flameout caused by flame fluctuation or external interference, and enhances the safety of the burner. Due to the stable and sufficient combustion, the problems of internal carbon deposition and corrosion of the burner caused by uneven combustion are reduced, thereby prolonging the service life of the burner.

[0014] Further, the parameters of the fire hole groups and the flame stabilizing holes can be adjusted to adapt to different types of fuel gas, such as natural gas, liquefied gas, etc. In addition, the design of the multiple groups of fire hole groups and the flame stabilizing holes enables the burner to produce flames of different sizes and shapes.

[0015] In addition, the burner in the above technical solution provided by the utility model can also have the following additional technical features:

[0016] In some technical solutions of the utility model, optionally, the multiple groups of fire hole groups are arranged along the length direction of the top wall of the combustion part; the top wall of the combustion part comprises a spacing part, which is arranged between adjacent two groups of fire hole groups in the multiple groups of fire hole groups.

[0017] In this technical solution, the multiple groups of fire hole groups are arranged along the length direction of the top wall of the combustion part; the top wall of the combustion part comprises a spacing part, which is arranged between adjacent two groups of fire hole groups in the multiple groups of fire hole groups, which can ensure that the flames are uniformly distributed on the top wall of the combustion part. Since the spacing part is provided between the two groups of fire holes, the flames of the fire holes in each group have a certain distance, which improves the contact area of the flames and air, and makes the flames more dispersed and uniform during the combustion process. At the same time, the spacing part can also play the role of heat insulation and preventing mutual interference of the flames, further improving the uniformity and stability of the combustion.

[0018] Further, since the flames are uniformly distributed on the top wall of the combustion part, the heat can be more effectively transferred to the heated objects, which helps to reduce the loss and waste of heat and improves the heat transfer efficiency. By optimizing the flame distribution and improving the heat transfer efficiency, this burner can reduce the fuel gas consumption while ensuring the combustion effect, thereby achieving the effect of energy saving. This is of great significance for reducing production costs and protecting the environment.

[0019] The provision of the spacing part helps to reduce the thermal stress generated on the top wall of the combustion part during the heating process. Since the flames form a spacing between the adjacent two groups of fire hole groups, the top wall can be heated more uniformly, thereby reducing the problems of deformation or damage caused by excessive thermal stress.

[0020] By optimizing the flame distribution and reducing the thermal stress, the safety hazards caused by uneven combustion or overheating can be reduced, which can prevent the spread and diffusion of the flames and further improve the safety of the burner.

[0021] In some technical solutions of the utility model, optionally, the width of the interval part is greater than the distance between two adjacent first fire holes in the plurality of first fire holes in the length direction of the top wall of the combustion part.

[0022] In the technical solution, the width of the interval part is greater than the distance between two adjacent first fire holes in the plurality of first fire holes in the length direction of the top wall of the combustion part. That is, in the top wall, the pressure stabilizing hole in the application is arranged at the top wall with a relatively narrow width. By arranging the width of the interval part to be greater than the distance between two adjacent first fire holes in the plurality of first fire holes, the flame stabilizing hole can be used to reduce the gas flow rate, heat the flame root at the first fire hole, reduce the probability of flame loss, and enable the flame to form a stable combustion environment around it, thereby improving the stability of the entire combustion process. By arranging the interval part, a certain distance can be formed between the two adjacent groups of fire hole groups, thereby increasing the contact area of the flame and the air, enabling the combustion to be more complete, avoiding the flame from sticking together, and improving the combustion efficiency.

[0023] In some technical solutions of the utility model, optionally, the side wall of the combustion part is provided with a second fire hole, the second fire hole is communicated with the gas passage, and the burner further comprises a flame stabilizing sheet, the flame stabilizing sheet is arranged at the side of the combustion part and opposite to the second fire hole, a first gap is formed between the flame stabilizing sheet and the combustion part, and the first gap extends from the second fire hole to the top wall of the combustion part.

[0024] In the technical solution, the side wall of the combustion part is provided with a second fire hole, that is, a side flame hole, and the second fire hole is communicated with the gas passage, thereby improving the gas utilization efficiency and improving the working efficiency of the burner. The burner further comprises a flame stabilizing sheet, the flame stabilizing sheet is arranged at the side of the combustion part and opposite to the second fire hole, a first gap is formed between the flame stabilizing sheet and the combustion part, and the first gap extends from the second fire hole to the top wall of the combustion part. Thus, when the burner is working, the flame at the second fire hole can be guided by the flame stabilizing sheet, the flame at the second fire hole heats the flame root at the first fire hole along the first gap, the flame at the first fire hole is stabilized, the probability of flame loss is reduced, the flame stabilizing sheet arranged at the side can realize double flame stabilization in combination with the flame stabilizing hole between two adjacent first fire holes in the first fire hole, thereby enabling the combustion of the burner to be more complete, enabling the flame to form a stable combustion environment around it, and thereby improving the stability of the entire combustion process. The flame stabilizing sheet can also prevent the flame from spreading and diffusing, thereby further improving the safety of the burner.

[0025] In some technical schemes of the utility model, optionally, the side wall of the combustion part comprises a first side wall and a second side wall, the first side wall and the second side wall are connected with the top wall of the combustion part, the gas part comprises a first sheet body and a second sheet body, the first sheet body is connected with the first side wall, the second sheet body is connected with the second side wall, the second sheet body and the first sheet body enclose the gas passage, and the first sheet body, the second sheet body, the first side wall, the second side wall and the top wall of the combustion part are of an integrated structure.

[0026] In the technical scheme, the side wall of the combustion part comprises a first side wall and a second side wall, the first side wall and the second side wall are connected with the top wall of the combustion part, the stability of the lifting structure is improved. In addition, the gas part comprises a first sheet body and a second sheet body, the first sheet body is connected with the first side wall, the second sheet body is connected with the second side wall, the second sheet body and the first sheet body enclose the gas passage, and the first sheet body, the second sheet body, the first side wall, the second side wall and the top wall of the combustion part are of an integrated structure, so that the assembly steps can be simplified, the complexity of the burner structure is reduced, the installation efficiency of the burner is improved, the production and processing technology is simplified, and the cost is reduced.

[0027] In some technical schemes of the utility model, optionally, the gas part further comprises a flange, the flange is connected with the edge of the first sheet body and extends to the side of the second sheet body away from the first sheet body.

[0028] In the technical scheme, the gas part further comprises a flange, the flange is connected with the edge of the first sheet body and extends to the side of the second sheet body away from the first sheet body. The flange can be used for fixedly mounting the first sheet body and the second sheet body, the installation efficiency is simplified, and additionally, the mounting assembly can be omitted, and the production cost is reduced.

[0029] In some technical schemes of the utility model, optionally, the side wall of the combustion part to the top wall of the combustion part is of an integrated bending structure, and the flame stabilizing sheet is arranged on one side of the combustion part.

[0030] In the technical scheme, the side wall of the combustion part to the top wall of the combustion part is of an integrated bending structure, and the flame stabilizing sheet is arranged on one side of the combustion part, so that the gas flow efficiency can be improved, gas leakage can be avoided, the installation difficulty is reduced, the production of the burner can be realized through integrated stamping, and the production difficulty is reduced.

[0031] In some technical schemes of the utility model, optionally, the flow area of the flame stabilizing hole is smaller than the flow area of the first fire hole.

[0032] In the technical scheme, the flow area of the flame stabilizing hole is smaller than the flow area of the first fire hole, the flow resistance of the gas at the flame stabilizing hole is large, the gas flow rate is reduced, the root of the flame at the first fire hole is heated, the flame-out probability is reduced, the flame can form a stable combustion environment around the flame, and thus the stability of the entire combustion process is improved.

[0033] Specifically, the flow area of the flame stabilizing hole is smaller than the flow area of the first fire hole, the flow area of the flame stabilizing hole is reduced, the gas flow rate at the flame stabilizing hole is reduced, the flame at the flame stabilizing hole is reduced, and thus the root of the flame at the first fire hole is heated more effectively.

[0034] In some technical schemes of the utility model, optionally, the flame stabilizing hole is arranged between any two adjacent first fire holes in the plurality of first fire holes.

[0035] In the technical scheme, the flame stabilizing hole is arranged between any two adjacent first fire holes in the plurality of first fire holes, the flame stabilizing effect can be further improved, the heating of the flame at the flame stabilizing hole to the root of the flame at the first fire hole is uniform, and the probability of flame-out of the flame at the first fire hole is reduced.

[0036] In some technical schemes of the utility model, optionally, at least two flame stabilizing holes are arranged between two adjacent first fire holes in the plurality of first fire holes, and the at least two flame stabilizing holes are arranged on both sides of the first fire hole in the width direction of the top wall of the combustion part.

[0037] In the technical scheme, at least two flame stabilizing holes are arranged between two adjacent first fire holes in the plurality of first fire holes, and the at least two flame stabilizing holes are arranged on both sides of the first fire hole in the width direction of the top wall of the combustion part, the flame stabilizing effect is further improved, and meanwhile, the flame stabilizing holes do not affect each other, and the stability of the burner is improved.

[0038] The utility model provides a kind of burner assembly in the second aspect of the utility model, comprising the burner of any one of the above technical scheme;The number of burner is multiple, and multiple burners are arranged side by side.

[0039] The burner assembly provided in the application comprises the burner in any one of the above technical solutions; the number of the burners is multiple, and the multiple burners are arranged side by side, which can avoid the situation that the flame is too concentrated in some areas and relatively weak in other areas, thereby improving the combustion efficiency of the whole combustion area. Meanwhile, by optimizing the flame distribution and reducing the thermal stress, the burner assembly can reduce the safety hazards caused by uneven combustion or overheating. The fire hole in the burner assembly can reduce the flame-out probability, so that the flame can form a stable combustion environment around it, thereby improving the stability of the whole combustion process. Therefore, the burner assembly has all the beneficial effects of the burner in any one of the above technical solutions.

[0040] The third aspect of the utility model provides a water heater, comprising the burner in any one of the above technical solutions; or the burner assembly in any one of the above technical solutions.

[0041] The water heater provided in the application comprises the burner in any one of the above technical solutions; or the burner assembly in any one of the above technical solutions. Therefore, the water heater has all the beneficial effects of the burner in any one of the above technical solutions or the burner assembly in any one of the above technical solutions.

[0042] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0043] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0044] Figure 1 One of the structural schematic diagrams of the burner according to one embodiment of the utility model is shown;

[0045] Figure 2 The second structural schematic diagram of the burner according to one embodiment of the utility model is shown;

[0046] Figure 3 The third structural schematic diagram of the burner according to one embodiment of the utility model is shown;

[0047] Figure 4 The fourth structural schematic diagram of the burner according to one embodiment of the utility model is shown;

[0048] Figure 5 The plan view of the burner according to one embodiment of the utility model is shown;

[0049] Figure 6Fig. 5 shows a structural schematic diagram of a burner according to one embodiment of the present application;

[0050] Figure 7 Fig. 1 shows a premixed gas flow field schematic diagram of a burner according to one embodiment of the present application;

[0051] Figure 8 Fig. 2 shows a premixed gas volume fraction distribution schematic diagram of a burner according to one embodiment of the present application;

[0052] Figure 9 Fig. 6 shows a premixed gas flow field schematic diagram of a burner according to one embodiment of the present application;

[0053] Figure 10 Fig. 7 shows a premixed gas volume fraction distribution schematic diagram of a burner according to one embodiment of the present application;

[0054] Figure 11 Fig. 8 shows a premixed gas flow field schematic diagram of a burner according to one embodiment of the present application;

[0055] Figure 12 Fig. 9 shows a premixed gas volume fraction distribution schematic diagram of a burner according to one embodiment of the present application;

[0056] Figure 13 Fig. 10 shows a basic flow chart of a theoretical design of a burner according to one embodiment of the present application.

[0057] Wherein, Figures 1 to 13 The correspondence between the reference signs and the component names in the drawings is as follows:

[0058] 100 burner, 110 body, 112 gas part, 114 combustion part, 120 gas passage, 122 top wall, 124 interval part, 126 second fire hole, 130 fire hole group, 132 first fire hole, 134 flame stabilizing hole, 140 flame stabilizing sheet, 142 first gap, 150 first side wall, 152 second side wall, 160 first sheet body, 162 second sheet body, 164 flange. DETAILED DESCRIPTION

[0059] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0060] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that are not specifically described in the following description, and so the scope of the present application is not limited to the specific embodiments described in the following description.

[0061] The following description refers to the accompanying drawings. Figures 1 to 13 A burner 100, a burner assembly and a water heater according to some embodiments of the present application are described below.

[0062] In the related art, a plurality of groups of fire holes are arranged on the top plate of the burner, and a flame stabilizing hole is arranged between the two adjacent groups of fire holes. The flame stabilizing hole is used to transmit the flame between the two adjacent groups of fire holes when the flame is ignited. However, the flame stabilizing hole is arranged between the two adjacent groups of fire holes, and cannot heat the flame roots of each fire hole in each group of fire holes. Therefore, during the use of the burner, the flame stabilizing hole arranged between the two adjacent groups of fire holes cannot stabilize the flame. To solve the problem of increased flame-out probability caused by the fast gas flow rate, the burner 100, the burner assembly and the water heater in the following embodiments are provided.

[0063] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , in the embodiments of the present application, a burner 100 is provided, which comprises a body 110. The body 110 comprises a gas part 112 and a combustion part 114. The gas part 112 is provided with a gas passage 120. The top wall 122 of the combustion part 114 is provided with a plurality of groups of fire holes 130. The plurality of groups of fire holes 130 are respectively in communication with the gas passage 120. The group of fire holes 130 comprises a plurality of first fire holes 132 and a flame stabilizing hole 134. The flame stabilizing hole 134 is arranged between two adjacent first fire holes 132 in the plurality of first fire holes 132.

[0064] The burner 100 provided in the present application comprises a body 110. The body 110 comprises a gas part 112 and a combustion part 114. The gas part 112 is provided with a gas passage 120. The gas passage 120 can realize stable supply of gas, thereby improving the stability of the burner 100. The top wall 122 of the combustion part 114 is provided with a plurality of groups of fire holes 130. The plurality of groups of fire holes 130 are respectively in communication with the gas passage 120, so that the gas can be uniformly distributed into each group of fire holes 130, thereby ensuring full utilization of the gas. By arranging the plurality of groups of fire holes 130, there is a gap between the two adjacent groups of fire holes 130, so that when the burner 100 works, the flames at the two adjacent groups of fire holes 130 have a gap, thereby increasing the contact area of the flame with the air, making the combustion of the gas more sufficient, and improving the combustion efficiency of the burner 100.

[0065] The fire hole group 130 includes a plurality of first fire holes 132 and a flame stabilizing hole 134 arranged between two adjacent first fire holes 132 in the plurality of first fire holes 132, which improves the heating efficiency of the burner 100. When the burner 100 is working, the flame generated by the flame stabilizing hole 134 can heat the flame at the first fire hole 132, making the combustion of the flame at the first fire hole 132 more stable, achieving flame stabilization at the first fire hole 132, and reducing the probability of flame lift-off.

[0066] The flame generated by the flame stabilizing hole 134 can effectively stabilize the flame at the first fire hole 132, and also increase the contact area of the flame with air, thereby improving the combustion efficiency. The flame of the flame stabilizing hole 134 can heat the root temperature of the flame of the first fire hole 132, and also make the temperature distribution of each part of the flame of the burner 100 more uniform.

[0067] Specifically, by adding the flame stabilizing hole 134 between two adjacent first fire holes 132 in the plurality of first fire holes 132, the uniformity of the flame emitted by the burner 100 can be improved when the burner 100 is working, thereby improving the combustion efficiency of the burner 100 and the stability of the equipment. In addition, the design of multiple groups of fire hole groups 130 can further improve the uniformity of combustion and achieve full combustion of the gas.

[0068] Specifically, the flame stabilizing hole 134 has a relatively small diameter, which increases the flow resistance of the gas at the flame stabilizing hole 134, reduces the flow rate of the gas, heats the root of the flame at the first fire hole 132, reduces the probability of lift-off, and forms a stable combustion environment around the flame, thereby improving the stability of the entire combustion process.

[0069] Specifically, the design of the first fire hole 132 and the flame stabilizing hole 134 can reduce the probability of lift-off of the burner 100, and by reasonably designing the position and size of the flame stabilizing hole 134, the gas and air can be better mixed in the combustion part 114, reducing the occurrence of backfire and lift-off, and further improving the stability of combustion.

[0070] The presence of the flame stabilizing hole 134 also promotes the sufficient mixing of gas and air, making the combustion more sufficient and improving the combustion efficiency. Due to the stable and sufficient combustion of the flames at the multiple groups of flame hole groups 130, the burner 100 can generate higher thermal efficiency and convert more gas into heat energy, thereby improving the energy utilization efficiency. The design of the flame stabilizing hole 134 helps to prevent accidental flameout caused by flame fluctuation or external interference, enhancing the safety of the burner 100. Due to the stable and sufficient combustion, the problem of internal carbon deposition and corrosion of the burner 100 caused by uneven combustion is reduced, thereby prolonging the service life of the burner 100.

[0071] Further, the parameters of the flame hole groups 130 and the flame stabilizing hole 134 can be adjusted to adapt to different types of gas, such as natural gas, liquefied gas, etc. In addition, the design of the multiple groups of flame hole groups 130 and the flame stabilizing hole 134 enables the burner 100 to generate flames of different sizes and shapes, enhancing the functionality of the burner 100.

[0072] The embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, the embodiment further comprises the following technical features.

[0073] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , in some embodiments of the utility model, optionally, the multiple groups of flame hole groups 130 are arranged along the length direction of the top wall 122 of the combustion part 114; the top wall 122 of the combustion part 114 comprises a spacing part 124, which is arranged between adjacent two groups of flame hole groups 130 in the multiple groups of flame hole groups 130.

[0074] In this embodiment, the multiple groups of flame hole groups 130 are arranged along the length direction of the top wall 122 of the combustion part 114; the top wall 122 of the combustion part 114 comprises a spacing part 124, which is arranged between adjacent two groups of flame hole groups 130 in the multiple groups of flame hole groups 130, which can ensure that the flames are uniformly distributed on the top wall 122 of the combustion part 114. Since the spacing part 124 is provided between the two groups of flame holes, the flames of each group of flame holes have a certain distance, which improves the contact area of the flames with air and makes the flames more dispersed and uniform during the combustion process. At the same time, the spacing part 124 can also play a role in heat insulation and preventing mutual interference of the flames, further improving the uniformity and stability of the combustion. The spacing part 124 can increase the contact area of the flames with air, making the combustion more sufficient and avoiding the flames sticking together, thereby improving the combustion efficiency.

[0075] Specifically, as shown in Figure 6 , the length direction of the top wall 122 of the combustion part 114 is direction F1.

[0076] Further, since the flames are uniformly distributed on the top wall 122 of the combustion part 114, heat can be more effectively transferred to the heated object, helping to reduce heat loss and waste, and improve heat transfer efficiency. By optimizing the flame distribution and improving the heat transfer efficiency, this burner 100 can reduce the gas consumption while ensuring the combustion effect, thereby achieving the effect of energy saving. This is of great significance for reducing production costs and protecting the environment.

[0077] The provision of the spacing part 124 helps to reduce the thermal stress generated by the top wall 122 of the combustion part 114 during heating. Since the flames form a gap between the two adjacent groups of fire hole groups 130, the top wall 122 can be heated more evenly, thereby reducing the problem of deformation or damage caused by excessive thermal stress.

[0078] By optimizing the flame distribution and reducing the thermal stress, the safety hazards caused by uneven combustion or overheating can be reduced, which can prevent the spread and diffusion of flames and further improve the safety of the burner 100.

[0079] The present embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, the present embodiment further comprises the following technical features.

[0080] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , in some embodiments of the present application, the width of the spacing part 124 is greater than the distance between the two adjacent first fire holes 132 in the length direction of the top wall 122 of the combustion part 114.

[0081] In this embodiment, the width of the spacing part 124 is greater than the distance between the two adjacent first fire holes 132 in the length direction of the top wall 122 of the combustion part 114. That is, in the top wall 122, the pressure stabilizing hole in the present application is arranged at the top wall 122 with a narrower width, and by arranging the width of the spacing part 124 to be greater than the distance between the two adjacent first fire holes 132, the flame stabilizing hole 134 can be used to reduce the gas flow rate, heat the flame root at the first fire hole 132, reduce the flame-out probability, and form a stable combustion environment around the flame, thereby improving the stability of the entire combustion process. By providing the spacing part 124, a certain distance can be provided between the two adjacent groups of fire hole groups 130, thereby increasing the contact area of the flame and the air, making the combustion more complete, avoiding the flame from sticking together, and improving the combustion efficiency.

[0082] The present embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, the present embodiment further comprises the following technical features.

[0083] As Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 shown, in some embodiments of the utility model, optional, the side wall of combustion part 114 is provided with second fire hole 126, second fire hole 126 is communicated with gas passage 120, burner 100 still includes flame stabilizer 140, flame stabilizer 140 is set up in the side of combustion part 114, with second fire hole 126 is opposite, and flame stabilizer 140 and combustion part 114 between there is first gap 142, and first gap 142 extends by the direction of second fire hole 126 to the top wall 122 of combustion part 114.

[0084] In this embodiment, the side wall of the combustion part 114 is provided with a second fire hole 126, which is a side flame hole. The second fire hole 126 is communicated with the gas passage 120, which can improve the gas utilization efficiency and improve the working efficiency of the burner 100. The burner 100 further comprises a flame stabilizer 140, which is arranged on the side of the combustion part 114 and opposite to the second fire hole 126. The flame stabilizer 140 and the combustion part 114 have a first gap 142 extending from the second fire hole 126 to the top wall 122 of the combustion part 114. Thus, when the burner 100 is working, the flame at the second fire hole 126 can be guided by the flame stabilizer 140, so that the flame at the second fire hole 126 heats the root of the flame at the first fire hole 132 along the first gap 142, thereby stabilizing the flame at the first fire hole 132 and reducing the probability of flame lifting. At the same time, the flame stabilizer 140 arranged on the side can realize double flame stabilization in combination with the flame stabilization holes 134 between the two adjacent first fire holes 132 in the first fire hole 132, thereby making the combustion of the burner 100 more sufficient and forming a stable combustion environment around the flame, thereby improving the stability of the entire combustion process. It can also prevent the spread and diffusion of the flame, further improving the safety of the burner 100.

[0085] The present embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, the present embodiment further comprises the following technical features.

[0086] As Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, in some embodiments of this utility model, optionally, the sidewall of the combustion section 114 includes a first sidewall 150 and a second sidewall 152, both of which are connected to the top wall 122 of the combustion section 114. The gas section 112 includes a first piece 160 and a second piece 162, the first piece 160 being connected to the first sidewall 150 and the second piece 162 being connected to the second sidewall 152. The second piece 162 and the first piece 160 enclose a gas passage 120. The first piece 160, the second piece 162, the first sidewall 150, the second sidewall 152 and the top wall 122 of the combustion section 114 are an integral structure.

[0087] In this embodiment, the sidewalls of the combustion section 114 include a first sidewall 150 and a second sidewall 152, both of which are connected to the top wall 122 of the combustion section 114, improving structural stability. Furthermore, the gas section 112 includes a first piece 160 and a second piece 162. The first piece 160 is connected to the first sidewall 150, and the second piece 162 is connected to the second sidewall 152. The second piece 162 and the first piece 160 together form a gas passage 120. The first piece 160, the second piece 162, the first sidewall 150, the second sidewall 152, and the top wall 122 of the combustion section 114 are an integral structure, which simplifies assembly steps, reduces the structural complexity of the burner 100, improves the installation efficiency of the burner 100, simplifies manufacturing processes, and reduces costs.

[0088] This embodiment provides a burner 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0089] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments of the present invention, optionally, the gas section 112 further includes a flange 164, which is connected to the edge of the first piece 160 and extends to the side of the second piece 162 away from the first piece 160.

[0090] In this embodiment, the gas unit 112 further includes a flange 164, which is connected to the edge of the first piece 160 and extends to the side of the second piece 162 away from the first piece 160. The flange 164 enables the fixed installation of the first piece 160 and the second piece 162, simplifying installation efficiency and eliminating the need for additional installation components, thus reducing production costs.

[0091] This embodiment provides a burner 100, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0092] In some embodiments of the utility model, optionally, the side wall of combustion part 114 to the top wall 122 of combustion part 114 is an integral bending structure;The flame stabilizing sheet 140 is arranged on one side of the combustion part 114.

[0093] In this embodiment, the side wall of combustion part 114 to the top wall 122 of combustion part 114 is an integral bending structure;The flame stabilizing sheet 140 is arranged on one side of the combustion part 114, which can improve the gas flow efficiency, avoid gas leakage, reduce the installation difficulty, and can realize the production of the burner 100 through the integral stamping, reduce the production difficulty.

[0094] The embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features.

[0095] As Figure 1 、 Figure 2 、 Figure 3 And Figure 5 Indicated in some embodiments of the utility model, optionally, the flow area of the flame stabilizing hole 134 is less than the flow area of the first fire hole 132.

[0096] In this embodiment, the flow area of the flame stabilizing hole 134 is less than the flow area of the first fire hole 132, which can reduce the gas flow rate, heat the flame root of the first fire hole 132, reduce the flame-out probability, make the flame form a stable combustion environment around it, and improve the stability of the entire combustion process.

[0097] Specifically, the flow area of the flame stabilizing hole 134 is less than the flow area of the first fire hole 132, which can reduce the flow area of the flame stabilizing hole 134, reduce the gas flow rate at the flame stabilizing hole 134, reduce the flame at the flame stabilizing hole 134, and further effectively heat the root of the flame at the first fire hole 132.

[0098] The embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features.

[0099] In some embodiments of the utility model, optionally, the flame stabilizing hole 134 is arranged between any two adjacent first fire holes 132 in the plurality of first fire holes 132.

[0100] In this embodiment, the flame stabilizing holes 134 are arranged between any two adjacent first fire holes 132 in the plurality of first fire holes 132, which can further improve the flame stabilizing effect, and can improve the heating uniformity of the flame at the flame stabilizing holes 134 to the flame root at the first fire holes 132, and reduce the probability of flame lift-off at the first fire holes 132.

[0101] The embodiment provides a burner 100, in addition to the technical features of the above-mentioned embodiments, and further comprises the following technical features.

[0102] As shown in Figure 6 , Figure 1 , Figure 2 and Figure 3 , in some embodiments of the utility model, optionally, at least two flame stabilizing holes 134 are arranged between two adjacent first fire holes 132 in the plurality of first fire holes 132; and the at least two flame stabilizing holes 134 are arranged on both sides of the first fire holes 132 in the width direction of the top wall 122 of the combustion part 114.

[0103] In this embodiment, at least two flame stabilizing holes 134 are arranged between two adjacent first fire holes 132 in the plurality of first fire holes 132; and the at least two flame stabilizing holes 134 are arranged on both sides of the first fire holes 132 in the width direction of the top wall 122 of the combustion part 114, which further improves the flame stabilizing effect, and also avoids the flame stabilizing holes 134 from affecting each other, thereby improving the stability of the burner 100.

[0104] Specifically, as shown in Figure 5 , the width direction of the top wall 122 of the combustion part 114 is direction F2.

[0105] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , in the embodiments of the utility model, a burner assembly is provided, which comprises the burner 100 according to any one of the above-mentioned embodiments; and the number of the burners 100 is multiple, and the multiple burners 100 are arranged side by side.

[0106] The burner assembly provided in the present application comprises the burner 100 of any one of the above embodiments; the plurality of burners 100 are arranged side by side, which can avoid the situation that the flame is too concentrated in some areas and relatively weak in other areas, thereby improving the combustion efficiency of the entire combustion area. At the same time, by optimizing the flame distribution and reducing thermal stress, the burner assembly can reduce the safety hazards caused by uneven combustion or overheating. The first flame hole 132 in the burner assembly can reduce the probability of flameout, so that the flame can form a stable combustion environment around it, thereby improving the stability of the entire combustion process. Therefore, the burner assembly has all the beneficial effects of the burner 100 of any one of the above embodiments.

[0107] As Figure 6 , Figure 1 , Figure 2 and Figure 3 indicated, in the embodiments of the present application, a water heater is provided, which comprises the burner 100 of any one of the above embodiments; or the burner assembly of any one of the above embodiments.

[0108] The water heater provided in the present application comprises the burner 100 of any one of the above embodiments; or the burner assembly of any one of the above embodiments. Therefore, the water heater has all the beneficial effects of the burner 100 of any one of the above embodiments or the burner assembly of any one of the above embodiments.

[0109] Specifically, the flame generated by the burner 100 can heat to form high-temperature flue gas, which can heat the water in the circulating water pipe, thereby realizing hot water supply and improving the working efficiency of the water heater.

[0110] Specifically, as Figure 5 indicated, the premixed gas flow velocity field inside the burner is shown, in which the flow velocity at the bending position in the gas passage is relatively high.

[0111] As Figure 1 indicated, the premixed gas volume fraction, i.e., the molar fraction distribution of methane (CH4) inside the burner is shown.

[0112] As Figure 2 indicated, the premixed gas flow velocity field inside the burner is shown, in which the flow velocity at the bending position in the gas passage is relatively high.

[0113] As Figure 3 indicated, the premixed gas volume fraction, i.e., the molar fraction distribution of methane (CH4) inside the burner is shown.

[0114] As Figure 5 indicated, the premixed gas flow velocity field inside the burner is shown, in which the flow velocity at the bending position in the gas passage is relatively high.

[0115] As Figure 7 shown, the premixed gas volume fraction inside the burner, i.e. the mole fraction distribution of methane (CH4), is shown. By adjusting the first air quantity, the second air quantity and the throat area, the distribution of gas inside the burner can be adjusted to avoid backfire and improve the use effect of the burner.

[0116] Specifically, as Figure 8 shown, the burner in the application can be applied as an atmospheric burner. When designing and manufacturing an atmospheric burner, the load of the atmospheric burner can be considered first, then the amount of natural gas and the theoretically required air quantity are obtained, the primary air quantity and the secondary air quantity are calculated, the nozzle area and the nozzle to throat area are calculated and designed, and then the throat area is obtained. Then the port area is designed, after the port area is designed, the port shape, size, depth and spacing are designed, and the number of ports is designed. Based on the above design, the port outlet flow velocity can be obtained, and the port heat intensity is obtained in this way. Finally, the inner flame height and the outer flame height in the burner are obtained.

[0117] Specifically, the inner flame height depends on the gas properties, the primary air coefficient α1, the port size and the port heat intensity, wherein the inner flame height h rc is an empirical formula:

[0118] h rc = 0.86Kf p q p × 1000;

[0119] Wherein, the coefficient K depends on the primary air coefficient, when the primary air coefficient α1=0.6, the gas property is natural gas, K=0.15, and when the primary air coefficient α1=0.7, K=0.13.f p is the port area (unit: square millimeter mm 2 ) of a single port (first port). q p is the port heat intensity (unit: kilowatts per square millimeter kW / mm 2 ).

[0120] Specifically, the outer flame height depends on the gas properties, the port heat intensity, the port diameter and the port spacing, and the empirical formula of the outer flame height h oc is:

[0121]

[0122] Wherein, n is the row number of the port, n1 is 1.0 for natural gas, d p is the port characteristic diameter, and S is the influence of the port net distance on the outer smoke height, and the specific values are as follows Table 1:

[0123] Table 1

[0124] Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Clearance of fire hole (mm) 2 4 6 8 S 1.47 1.22 1.04 0.91

[0125] In the claims, the specification, and the drawings of the present application, terms such as "a plurality" mean two or more, unless expressly specified otherwise. The terms "above", "below", "upper", "lower", and the like, are used as terms of reference and not as terms of limitation to the present application. The terms "connect", "mount", "attach", and "secure", as well as any variations thereof, are intended to refer to an engagement of one component with another component, whether directly or indirectly. Such engagement can be mechanical, electrical, or magnetic, unless specifically described otherwise. The terms "first", "second", "third", and the like, as used in the claims, are used for purposes of nomenclature only and are not intended to limit the claims in any manner except as specifically set forth in the claims. The terms "exemplary" and "embodiment" indicate the presence of some features, structures, materials, or characteristics but do not necessarily convey that all of these, or even any of these, are included in every embodiment. The terms "first", "second", and the like do not necessarily indicate any order or sequence unless specifically stated to do so. The terms "a", "an", and "the" do not necessarily refer to only one instance but include one or more instances. The terms "comprise", "comprising", "include", "including", and the like, mean including at least the recited items but do not exclude other, additional items. The terms "coupled", "connected", and "mounting" refer to an electrical, magnetic, or mechanical connection or link of one component to another component and does not require a direct connection or a connection through an intermediary component. Other definitions can be provided for other terms and phrases not specifically defined herein.

[0126] In the claims, the specification, and the drawings of the present application, the terms "one embodiment", "some embodiments", "certain embodiments", and the like, do not necessarily refer to the same embodiment or multiple embodiments. The terms "a", "an", and "the" do not necessarily refer to only one instance but include one or more instances. The terms "comprise", "comprising", "include", "including", and the like, mean including at least the recited items but do not exclude other, additional items. The terms "coupled", "connected", and "mounting" refer to an electrical, magnetic, or mechanical connection or link of one component to another component and does not require a direct connection or a connection through an intermediary component. Other definitions can be provided for other terms and phrases not specifically defined herein.

[0127] The above description is merely illustrative of the application, and is not intended to limit the application. The application can be modified and varied in many ways, and all such modifications and variations are considered within the scope of the application. Any modification, equivalent replacement, improvement, and the like, made within the spirit and principle of the application, shall be included in the protection scope of the application.

Claims

1. A burner, characterized by The burner comprises: a body comprising a gas part and a combustion part, the gas part is provided with a gas passage, and the top wall of the combustion part is provided with a plurality of groups of fire hole groups, and each group of fire hole groups is in communication with the gas passage; each group of fire hole groups comprises a plurality of first fire holes and a flame stabilizing hole, and the flame stabilizing hole is arranged between two adjacent first fire holes in the plurality of first fire holes.

2. The burner of claim 1, wherein The plurality of groups of fire hole groups are arranged along the length direction of the top wall of the combustion part. The top wall of the combustion part comprises a spacing part, and the spacing part is arranged between two adjacent groups of fire hole groups in the plurality of groups of fire hole groups.

3. The burner of claim 2, wherein In the length direction of the top wall of the combustion part, the width of the spacing part is greater than the distance between two adjacent first fire holes in the plurality of first fire holes.

4. The burner of claim 1, wherein The side wall of the combustion part is provided with a second fire hole in communication with the gas passage, and the burner further comprises: a flame stabilizing sheet arranged at the side of the combustion part and opposite to the second fire hole, and a first gap is formed between the flame stabilizing sheet and the combustion part, and the first gap extends from the second fire hole to the top wall of the combustion part.

5. The burner of claim 4, wherein The side wall of the combustion part comprises a first side wall and a second side wall, and the first side wall and the second side wall are both connected with the top wall of the combustion part, and the gas part comprises: a first sheet body connected with the first side wall; a second sheet body connected with the second side wall, and the second sheet body and the first sheet body enclose the gas passage; the first sheet body, the second sheet body, the first side wall, the second side wall and the top wall of the combustion part are in an integrated structure.

6. The burner of claim 5, wherein The gas part further comprises: a turned edge connected with the edge of the first sheet body and extending to the side of the second sheet body away from the first sheet body.

7. The burner of claim 4, wherein The side wall of the combustion part and the top wall of the combustion part are in an integrated bending structure; the flame stabilizing sheet is arranged at one side of the combustion part.

8. The burner of claim 1, wherein The flow area of the flame stabilizing hole is smaller than the flow area of the first fire hole.

9. Burner according to any one of claims 1 to 8, characterized in that The flame stabilizing hole is arranged between any two adjacent first fire holes in the plurality of first fire holes.

10. Burner according to any one of claims 1 to 8, characterized in that At least two flame stabilizing holes are arranged between two adjacent first fire holes in the plurality of first fire holes. At least two flame stabilizing holes are arranged on both sides of the first fire hole in the width direction of the top wall of the combustion part.

11. A burner assembly characterized by, The burner comprises: a plurality of burners as claimed in any one of claims 1 to 10.

12. A water heater, characterized by The burner comprises: a plurality of burners as claimed in any one of claims 1 to 10. or a burner assembly as claimed in claim 11.

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