Gas appliance and burner

Abstract

The present application relates to a kind of gas equipment and combustor, corresponding injection of gas is injected to the injection end of fire row single piece, primary air is simultaneously entered into second cavity by first air inlet, and enters the injection end of fire row single piece, and is mixed with gas to form mixed gas and is combusted on the fire hole of fire row single piece.Secondary air is synchronously entered into first cavity by second air inlet, third cavity, first air inlet, and is combusted in the interval between fire row single piece through the fire hole, so that gas can be fully combusted, ensure combustion condition, improve combustion efficiency, reduce flue gas emission quantity.First air control board is arranged between gas distribution rod assembly and second connecting plate, so that second cavity and third cavity are separated from each other, so that the negative pressure at first air inlet can be avoided to influence primary air entering second cavity, to ensure that sufficient amount of primary air enters second cavity by first air inlet, to ensure combustion condition, make combustion more fully, greatly improve combustion efficiency, reduce flue gas emission quantity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas equipment, in particular to a gas equipment and a burner. BACKGROUND

[0002] The gas equipment, for example, a gas water heater and a heating stove, comprises a burner, and the burner is used to burn gas to provide heat energy. The combustion condition of the burner directly affects the combustion condition of the gas equipment, the content of flue gas, whether the product meets the standard requirements, and safety problems. SUMMARY

[0003] The first technical problem solved by the present application is to provide a burner which can effectively ensure the combustion condition and reduce the flue gas discharge.

[0004] The second technical problem solved by the present application is to provide a burner which can effectively ensure the combustion condition and reduce the flue gas discharge.

[0005] The first technical problem is solved by the following technical scheme:

[0006] A burner, comprising: a first shell, the first shell comprising a bottom plate, a first side plate connected to the bottom plate, and at least one second side plate connected to the bottom plate, the bottom plate, the first side plate, and the at least one second side plate forming a first cavity; the first side plate comprising a first connecting plate, a second connecting plate, and a third connecting plate connected in sequence from bottom to top; the first connecting plate being provided with a plurality of fixing ports, and the second connecting plate being provided with a plurality of first air inlet holes communicating with the first cavity; a fire grate single piece and a gas distribution rod assembly, the fire grate single piece being provided in plurality, the injection end of the fire grate single piece being correspondingly arranged in the fixing port, and the gas distribution rod assembly being provided with a plurality of nozzles corresponding to the injection end of the fire grate single piece; a first air control plate, the first air control plate being arranged between the gas distribution rod assembly and the second connecting plate, the first air control plate and the gas distribution rod assembly being arranged in a spaced manner to form a first air inlet, the first air control plate, the gas distribution rod assembly, and the first connecting plate forming a second cavity, and the second cavity being in communication with the first air inlet; the first air control plate and the second connecting plate being arranged in a spaced manner to form a second air inlet, the first air control plate and the second connecting plate forming a third cavity, and the third cavity being in communication with the second air inlet.

[0007] The burner of the present application has the following beneficial effects compared with the background art:

[0008] When the above burner is in operation, the nozzles of the gas distribution rod assembly correspondingly spray gas to the injection end of the fire grate single piece. Since the second cavity is in communication with the first air inlet, primary air enters the second cavity through the first air inlet at the same time, and enters the injection end of the fire grate single piece to mix with the gas to form mixed gas, which is combusted at the fire hole of the fire grate single piece. In addition, secondary air enters the third cavity through the second air inlet at the same time, and enters the first cavity through the first air inlet, and participates in combustion at the fire hole through the spacing between the fire grates, so that the gas can be fully combusted, the combustion condition is ensured, the combustion efficiency is improved, and the flue gas emission is reduced. In addition, since the first air control plate is arranged between the gas distribution rod assembly and the second connecting plate, that is, the first air control plate separates the second cavity and the third cavity from each other, so that the negative pressure at the first air inlet does not affect the primary air entering the second cavity, and sufficient primary air can enter the second cavity through the first air inlet, thereby better ensuring the combustion condition, making the combustion more sufficient, effectively improving the combustion efficiency, and reducing the flue gas emission.

[0009] In addition, because the required amount of primary air can be easily achieved, and the ratio of the amount of primary air to the amount of secondary air can be better matched, compared with the traditional burner, the power and the rotating speed of the fan can be appropriately reduced, which is beneficial to reduce the noise of the fan, further beneficial to reduce the working noise of the whole gas water heater, and has a good noise reduction effect.

[0010] In one of the embodiments, the first air control plate is arranged at an angle with the first connecting plate, the distance between the end of the first air control plate away from the first connecting plate and the bottom plate is greater than the distance between the other end of the first air control plate and the bottom plate, and the angle between the first air control plate and the first connecting plate is a, and a is 95° to 135°. In this way, the vortex phenomenon formed when the primary air enters the second cavity through the first air inlet can be reduced or avoided.

[0011] In one of the embodiments, the first air control plate is arranged at an angle with the first connecting plate, the distance between the end of the first air control plate away from the first connecting plate and the bottom plate is greater than the distance between the other end of the first air control plate and the bottom plate, and the angle between the first air control plate and the first connecting plate is a, and a is 95° to 135°. In this way, the vortex phenomenon formed when the primary air enters the second cavity through the first air inlet can be reduced or avoided.

[0012] In one of the embodiments, the burner further comprises a second air control plate stacked on the first connecting plate; the second air control plate is provided with an air vent, and the air vent is in communication with the fixed port. In this way, the size of the air vent is smaller than that of the fixed port, and the second air control plate with different sizes of air vents can be selected and installed on the first connecting plate according to actual needs, so as to adjust the amount of primary air entering the inside of the injection end of the fire bed single piece, so that the gas can be fully burned, the combustion condition is ensured, the combustion efficiency is improved, and the flue gas emission is reduced.

[0013] In one of the embodiments, the first air control plate is connected to the top end of the second air control plate near one end of the first connecting plate. In this way, during the installation process, the first air control plate is installed on the first side plate, and the second air control plate is stacked on the first connecting plate. After the first air control plate is installed on the first side plate, the second air control plate can be installed and fixed, thereby simplifying the installation operation of the second air control plate and making the installation operation more convenient.

[0014] In one of the embodiments, the bottom plate is provided with a plurality of second air inlet holes in communication with the first cavity; the burner further comprises a third air control plate arranged opposite to the first air control plate, and the third air control plate is arranged between the bottom plate and the first connecting plate to separate the lower area of the bottom plate from the second cavity; the third air control plate is arranged apart from the air distribution rod assembly to form a third air inlet, and the second cavity is in communication with the third air inlet. In this way, on the one hand, the second cavity is also in communication with the external primary air through the third air inlet, and the primary air enters the second cavity not only through the first air inlet but also through the third air inlet, so that the pressure P2 inside the second cavity is close to the pressure P1 of the external environment, the absolute value of the difference between the pressure P2 inside the second cavity and the pressure P4 inside the first cavity is increased, thereby the introduction amount of the primary air is increased, the gas can be fully burned, the combustion condition is ensured, the combustion efficiency is improved, and the flue gas emission is reduced. On the other hand, under the action of the third air control plate, the second cavity becomes a relatively independent cavity, which relatively reduces the influence of the external cavity pressure, thereby ensuring the introduction amount of the primary air, making the introduction amount of the primary air more stable, further ensuring the combustion condition, and reducing the flue gas emission.

[0015] In one of the embodiments, the third air control plate is arranged at an angle with the first connecting plate, and the angle between the side surface of the third air control plate facing the first air control plate and the first connecting plate is b; the angle b is 95° to 135°. In this way, the vortex phenomenon formed when the primary air enters the second cavity through the third air inlet can be reduced or avoided.

[0016] In one of the embodiments, the air inlet rod assembly corresponds to the outer wall at the first air inlet in an arc shape; and / or, the air inlet rod assembly corresponds to the outer wall at the third air inlet in an arc shape. In this way, the air resistance through the first air inlet can be reduced, and the air resistance through the first air inlet can be reduced, thereby facilitating the primary air to enter the second cavity through the first air inlet and the third air inlet.

[0017] In one of the embodiments, the opening area of the second air inlet is S1, the sum of the areas of all the first air inlets on the second connecting plate is S2, and the sum of the areas of all the second air inlets on the bottom plate is S3; the ratio of S2 to S1 is 1.5 to 5, and the ratio of S3 to S1 is 3 to 10. In this way, not only can the primary air be introduced to easily achieve the required amount of primary air, but also the ratio of the primary air amount to the secondary air amount can be better matched, which can appropriately reduce the power and speed of the fan compared to the traditional burner, thereby facilitating the reduction of the noise of the fan, further facilitating the reduction of the working noise of the gas water heater, and achieving a good noise reduction effect.

[0018] The second technical problem is solved by the following technical scheme:

[0019] A gas device, the gas device comprises the burner; the gas device further comprises a second shell, the fourth cavity is arranged in the second shell, and a fourth air inlet is arranged on the wall of the second shell and communicates with the fourth cavity; and the burner is arranged in the fourth cavity.

[0020] Compared with the background art, the gas device has the following beneficial effects:

[0021] When the gas device works, the nozzles of the gas distribution rod assembly correspondingly spray the gas to the injection end of the fire grate single piece. Since the second cavity communicates with the first air inlet, the primary air enters the second cavity through the first air inlet at the same time, and enters the injection end of the fire grate single piece to mix with the gas to form a mixed gas, and the mixed gas burns on the fire hole of the fire grate single piece. In addition, the secondary air enters the third cavity through the second air inlet at the same time, and enters the first cavity through the first air inlet, and participates in the combustion at the fire hole through the spacing between the fire grate single pieces, so that the gas can be fully burned, the combustion condition is ensured, the combustion efficiency is improved, and the smoke emission amount is reduced. In addition, since the first air control plate is arranged between the gas distribution rod assembly and the second connecting plate, that is, the first air control plate separates the second cavity and the third cavity from each other, the negative pressure at the first air inlet can be avoided to affect the primary air entering the second cavity, so that sufficient primary air can enter the second cavity through the first air inlet, thereby better ensuring the combustion condition, making the combustion more sufficient, effectively improving the combustion efficiency, and reducing the smoke emission amount.

[0022] In addition, because the required primary air amount is easy to achieve, and the ratio of the primary air amount to the secondary air amount can be better matched, the power and rotation speed of the fan can be properly reduced compared to the conventional burner, which is beneficial to reduce the noise of the fan, and further beneficial to reduce the working noise of the gas water heater, and plays a good noise reduction effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The illustrations are given primarily for purposes of illustrating the illustrative embodiments of the application and do not limit the present application.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 The exploded structural schematic diagram of the burner of an embodiment of the present application;

[0026] Figure 2 The sectional structural schematic diagram of the burner of an embodiment of the present application;

[0027] Figure 3 The Figure 2 The enlarged structural schematic diagram at A;

[0028] Figure 4 The bottom structural schematic diagram of the burner of an embodiment of the present application;

[0029] Figure 5 The top structural schematic diagram of the burner of an embodiment of the present application;

[0030] Figure 6 The perspective structural schematic diagram of the burner of an embodiment of the present application;

[0031] Figure 7 The Figure 6 The structural schematic diagram after the gas distribution rod assembly is hidden;

[0032] Figure 8 The structural schematic diagram of the gas equipment of an embodiment of the present application.

[0033] Reference Signs:

[0034] 10, burner; 11, first shell; 111, bottom plate; 1111, second air inlet hole; 112, first side plate; 1121, first connecting plate; 11211, fixing hole; 1122, second connecting plate; 11221, first air inlet hole; 1123, third connecting plate; 113, second side plate; 114, first cavity; 12, fire grate single piece; 121, injection end; 122, fire hole; 13, gas distribution rod assembly; 131, nozzle; 14, first air control plate; 141, first air inlet; 142, second cavity; 143, second air inlet; 144, third cavity; 145, first mounting plate; 15, second air control plate; 151, air vent; 16, third air control plate; 161, third air inlet; 20, second shell; 21, fourth cavity; 22, fourth air inlet; 30, ignition assembly; 40, heat exchanger; 50, fan; 60, exhaust pipe. DETAILED DESCRIPTION

[0035] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific details set forth herein without departing from the scope of the present application, and it is understood that similar improvements can be made by those skilled in the art without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0036] Reference will now be made to the drawings, wherein: Figures 1 to 3 Figure 1 Fig. 1 shows an exploded structural schematic view of a burner 10 according to an embodiment of the present application, Figure 2 Fig. 2 shows a sectional structural schematic view of the burner 10 according to an embodiment of the present application, Figure 3 Fig. 3 shows a sectional structural schematic view of the burner 10 according to an embodiment of the present application, Figure 2 ​The enlarged structural schematic diagram at A. An embodiment of the present application provides a burner 10, which comprises a first shell 11, a fire grate single piece 12, a gas distribution rod assembly 13, and a first air control plate 14. The first shell 11 comprises a bottom plate 111, a first side plate 112 connected with the bottom plate 111, and at least one second side plate 113. The bottom plate 111, the first side plate 112, and the at least one second side plate 113 enclose a first cavity 114. The first side plate 112 comprises a first connecting plate 1121, a second connecting plate 1122, and a third connecting plate 1123 connected in sequence from bottom to top. The first connecting plate 1121 is provided with a plurality of fixing openings 11211, and the second connecting plate 1122 is provided with a plurality of first air inlet holes 11221 communicating with the first cavity 114. The fire grate single piece 12 is provided with a plurality of fire grate single pieces, and the injection end 121 of the fire grate single piece 12 is correspondingly arranged in the fixing opening 11211. The gas distribution rod assembly 13 is provided with a plurality of nozzles 131 corresponding to the injection end 121 of the fire grate single piece 12. The first air control plate 14 is arranged between the gas distribution rod assembly 13 and the second connecting plate 1122, and the first air control plate 14 and the gas distribution rod assembly 13 are arranged in a spaced manner to form a first air inlet 141. The first air control plate 14, the gas distribution rod assembly 13, and the first connecting plate 1121 enclose a second cavity 142, and the second cavity 142 communicates with the first air inlet 141. The first air control plate 14 and the second connecting plate 1122 are arranged in a spaced manner to form a second air inlet 143, and the first air control plate 14 and the second connecting plate 1122 enclose a third cavity 144, and the third cavity 144 communicates with the second air inlet 143.

[0037] When the burner 10 works, the nozzles 131 of the gas distribution rod assembly 13 correspondingly spray gas to the injection end 121 of the fire grate single piece 12. Since the second cavity 142 communicates with the first air inlet 141, primary air enters the second cavity 142 through the first air inlet 141 at the same time, and enters the injection end 121 of the fire grate single piece 12 to mix with the gas to form mixed gas, and the mixed gas burns on the fire hole 122 (as shown in Figure 1 and Figure 5 The secondary air enters the third cavity 144 through the second air inlet 143 at the same time, and enters the first cavity 114 through the first air inlet hole 11221, and participates in the combustion through the spacing between the fire grate single pieces 12 at the fire hole 122, so that the gas can be fully burned, the combustion condition is ensured, the combustion efficiency is improved, and the smoke emission is reduced. In addition, since the first air control plate 14 is arranged between the gas distribution rod assembly 13 and the second connecting plate 1122, that is, the first air control plate 14 separates the second cavity 142 and the third cavity 144 from each other, so that the negative pressure at the first air inlet hole 11221 (as shown in Figure 8The pressure at the indicated position (P3) affects the primary air entering the second chamber 142, ensuring that enough primary air enters the second chamber 142 through the first air inlet 141, thereby better ensuring combustion conditions, making combustion more complete, effectively improving combustion efficiency, and reducing flue gas emissions.

[0038] Furthermore, because it is easier to achieve the required primary air volume and can better match the ratio of primary to secondary air volume, the fan size can be appropriately reduced compared to a traditional burner 10 (e.g., ...). Figure 8 The power and fan speed (as shown) are adjusted to reduce the noise of the fan 50, which in turn helps to reduce the overall operating noise of the gas water heater, thus achieving a good noise reduction effect.

[0039] Please see Figures 1 to 3 In one embodiment, the first air control plate 14 and the first connecting plate 1121 are arranged at an angle, and the distance between the end of the first air control plate 14 away from the first connecting plate 1121 and the base plate 111 is greater than the distance between the other end of the first air control plate 14 and the base plate 111. Specifically, the angle between the first air control plate 14 and the first connecting plate 1121 is α, where α is between 95° and 135°. This reduces or avoids the vortex phenomenon formed when primary air enters the second cavity 142 through the first air inlet 141.

[0040] It is understood that the included angle α is not limited to 95° to 135° in the above embodiments, but can be set to other ranges. For example, the first air control plate 14 is perpendicular to the first connecting plate 1121. This is not limited here, and can be set according to actual needs.

[0041] Please see Figure 1 , Figure 6 and Figure 7 In one embodiment, a first mounting plate 145 is provided on the first air control plate 14. The first mounting plate 145 is connected to a second connecting plate 1122 or a third connecting plate 1123. The position of the first mounting plate 145 on the second connecting plate 1122 or the third connecting plate 1123 is adjustable, so as to change the distance L between the first air control plate 14 and the second connecting plate 1122. In this way, by adjusting the distance L, the size of the second air inlet 143 is changed, thereby affecting the dynamic pressure and static pressure at the second air inlet 143, and thus adjusting the pressure P2 inside the second cavity 142 (e.g., Figure 8 As shown), the intracavity pressure P3 of the third chamber 144 (as shown) Figure 8 (As shown), this improves combustion performance. As an example, the spacing L value is, for example, 1mm-3mm.

[0042] Please see Figure 1 , Figure 6 and Figure 7Specifically, the first mounting plate 145 is provided with a waist-shaped hole (not shown in the figure), and the first mounting plate 145 is mounted on the second connecting plate 1122 or the third connecting plate 1123 through the first fastener (not shown in the figure) passing through the waist-shaped hole. The position of the first fastener along the setting direction of the waist-shaped hole is adjustable, so that the interval L can be adjusted. Of course, a plurality of first mounting holes can also be provided on the first mounting plate 145, and the first fastener can be selectively mounted on the second connecting plate 1122 or the third connecting plate 1123 through any one of the first mounting holes, so as to adjust the interval L. In addition, the first mounting plate 145 can also be adjustably arranged on the second connecting plate 1122 or the third connecting plate 1123 by other means, which is not limited here and can be arranged according to actual needs.

[0043] Further, as an example, referring to Figure 1 With Figure 7 , the first mounting plate 145 is fixedly arranged on the third connecting plate 1123 by the first fastener. The first mounting plate 145 is, for example, two, and the two first mounting plates 145 are arranged at the two ends of the first air control plate 14 away from the first connecting plate 1121, so that the two first mounting plates 145 can be stably and fixedly arranged on the third connecting plate 1123.

[0044] Please refer to Figures 1 to 3 In an embodiment, the burner 10 further comprises a second air control plate 15 arranged on the first connecting plate 1121. The second air control plate 15 is provided with an air vent 151, and the air vent 151 is in communication with the fixed port 11211. In this way, the size of the air vent 151 is smaller than the size of the fixed port 11211, and the second air control plate 15 with different sizes of the air vent 151 can be selected and arranged on the first connecting plate 1121 according to actual needs, so as to adjust the amount of primary air entering the injection end 121 of the fire bed single piece 12, so that the gas can be fully burned, the combustion condition is ensured, the combustion efficiency is improved, and the flue gas emission is reduced.

[0045] Please refer to Figures 1 to 3 Specifically, the air vent 151 can be one, and the air vent 151 is in communication with all the fixed ports 11211. The size of the air vent 151 can be adjusted by changing the height h of the air vent 151, and the amount of primary air entering each fixed port 11211 can be adjusted when the height h of the air vent 151 changes. Of course, the air vent 151 can also be provided in a plurality, and each air vent 151 is arranged in correspondence with a plurality of fixed ports 11211. In this way, the size of one or more air vents 151 can be adjusted individually according to needs, so as to change the amount of primary air entering one or more air vents 151.

[0046] Please refer to Figures 1 to 3In one embodiment, the first air control plate 14 is connected to the top end of the second air control plate 15 near one end of the first connecting plate 1121. In this way, during the installation process, the first air control plate 14 is installed on the first side plate 112, and the second air control plate 15 is stacked on the first connecting plate 1121. After the first air control plate 14 is installed on the first side plate 112, the second air control plate 15 can be installed and fixed, thereby simplifying the installation operation of the second air control plate 15 and making the installation operation more convenient.

[0047] It should be noted that the "first mounting plate 145" can be "a part of the first air control plate 14", that is, the "first mounting plate 145" is integrally manufactured with the "other parts of the first air control plate 14"; or it can be a separate component that can be separated from the "other parts of the first air control plate 14", that is, the "first mounting plate 145" can be independently manufactured and then combined with the "other parts of the first air control plate 14" to form an integral whole. In one embodiment, the "first mounting plate 145" is integrally manufactured with the "first air control plate 14".

[0048] It should be noted that the "second air control plate 15" can be "a part of the first air control plate 14", that is, the "second air control plate 15" is integrally manufactured with the "other parts of the first air control plate 14"; or it can be a separate component that can be separated from the "other parts of the first air control plate 14", that is, the "second air control plate 15" can be independently manufactured and then combined with the "other parts of the first air control plate 14" to form an integral whole. In one embodiment, the "second air control plate 15" is integrally manufactured with the "first air control plate 14".

[0049] Please refer to Figures 1 to 3 In one embodiment, the bottom plate 111 is provided with a plurality of second air inlet holes 1111 that communicate with the first cavity 114. The burner 10 further comprises a third air control plate 16 that is arranged opposite to the first air control plate 14. The third air control plate 16 is arranged between the bottom plate 111 and the first connecting plate 1121, so as to separate the lower area of the bottom plate 111 from the second cavity 142. The third air control plate 16 is further arranged in spaced relation with the air distribution rod assembly 13 to form a third air inlet 161, and the second cavity 142 communicates with the third air inlet 161. In this way, on the one hand, the second cavity 142 also communicates with the external environment (such as the atmosphere) through the third air inlet 161, and on the other hand, the primary air not only enters the second cavity 142 through the first air inlet 141, but also enters the second cavity 142 through the third air inlet 161, so that the pressure P2 inside the second cavity 142 is close to the pressure P1 of the external environment (such as the atmosphere), as shown in Figure 8 as shown, specifically the pressure of the second cavity 142 in the second shell 20), and the pressure P4 of the first cavity 114 (such as Figure 8 as shown, specifically the pressure of the second cavity 142 in the second shell 20), and the pressure P4 of the first cavity 114 (such asFigure 8 The absolute value of the difference between the pressure P4 at the first air inlet hole 1411 and the pressure P5 at the second air inlet hole 1111 increases, thereby increasing the amount of primary air introduced, enabling the gas to burn fully, ensuring the combustion condition, improving the combustion efficiency, and reducing the amount of flue gas emissions. On the other hand, under the action of the third air control plate 16, the second cavity 142 becomes a relatively independent cavity, thereby reducing the influence of the external cavity pressure (specifically, the negative pressure P5 at the second air inlet hole 1111) and ensuring the amount of primary air introduced, making the amount of primary air introduced more stable, further ensuring the combustion condition, and reducing the amount of flue gas emissions. Figure 8

[0050] Please refer to Figures 1 to 3 In an embodiment, the third air control plate 16 is arranged at an angle with the first connecting plate 1121, and the angle between the side of the third air control plate 16 facing the first air control plate 14 and the first connecting plate 1121 is b, b is 95° to 135°. In this way, the vortex phenomenon formed when the primary air enters the second cavity 142 through the third air inlet 161 can be reduced or avoided.

[0051] Of course, it can be understood that the angle b is not limited to 95° to 135° in the above embodiment, but can also be set to other ranges, for example, as shown in the third air control plate 16 perpendicular to the first connecting plate 1121, it can also be set to other obtuse angles, which are not limited here and can be set according to actual needs. Figure 1

[0052] It should be noted that since the second air control plate 15 is attached to the first connecting plate 1121, when the first air control plate 14 is arranged at an angle with the first connecting plate 1121, it is correspondingly arranged at an angle with the second air control plate 15, and the angle is a. Similarly, when the third air control plate 16 is arranged at an angle with the first connecting plate 1121, it is correspondingly arranged at an angle with the second air control plate 15, and the angle is b.

[0053] As an example, the third air control plate 16 is connected to the bottom end of the second air control plate 15.

[0054] It should be noted that the "second air control plate 15" can be "part of the third air control plate 16", that is, the "second air control plate 15" is integrally manufactured with the "other part of the third air control plate 16"; or it can be a separate component that can be separated from the "other part of the third air control plate 16", that is, the "second air control plate 15" can be independently manufactured and then combined with the "other part of the third air control plate 16" to form a whole. In an embodiment, the "second air control plate 15" is integrally manufactured with the "third air control plate 16".

[0055] Please refer to Figures 1 to 3 ​​In one embodiment, the air inlet rod assembly corresponds to the outer wall at the first air inlet 141 in an arc shape; and / or, the air inlet rod assembly corresponds to the outer wall at the third air inlet 161 in an arc shape. In this way, the air resistance through the first air inlet 141 can be reduced, and the air resistance through the first air inlet 141 can be reduced, thereby facilitating the primary air to enter the inside of the second cavity 142 through the first air inlet 141 and the third air inlet 161.

[0056] Referring to Figures 3 to 5 In one embodiment, the opening area of the second air inlet 143 is S1, the sum of the areas of all the first air holes 11221 on the second connecting plate 1122 is S2, and the sum of the areas of all the second air holes 1111 on the bottom plate 111 is S3; the ratio of S2 to S1 is 1.5 to 5, and the ratio of S3 to S1 is 3 to 10. In this way, not only can the primary air be introduced to make it easy to achieve the required amount of primary air, but also the ratio of the amount of primary air to the amount of secondary air can be better matched, so compared with the traditional burner 10, the power and speed of the fan 50 can be appropriately reduced, which is conducive to reducing the noise of the fan 50, further conducive to reducing the working noise of the gas water heater, and has a good noise reduction effect.

[0057] Referring to Figure 3 With Figure 8 , Figure 8 The structure of the gas equipment of one embodiment of the application is shown. In one embodiment, a gas equipment, for example, a gas water heater or a heating stove. As Figure 8 specifically take the gas water heater as an example for expansion. The gas equipment includes the burner 10 of any of the above embodiments. The gas equipment further includes a second shell 20, the second shell 20 is provided with a fourth cavity 21, and the wall of the second shell 20 is provided with a fourth air inlet 22 communicating with the fourth cavity 21. The burner 10 is arranged in the fourth cavity 21.

[0058] When the gas equipment works, the nozzle 131 of the gas distribution rod assembly 13 sprays the gas to the injection end 121 of the fire row single piece 12. Since the second cavity 142 is communicated with the first air inlet 141, the primary air enters the second cavity 142 through the first air inlet 141 at the same time, and enters the injection end 121 of the fire row single piece 12 to mix with the gas to form mixed gas, which is combusted on the fire hole 122 of the fire row single piece 12. In addition, the secondary air enters the third cavity 144 through the second air inlet 143 at the same time, and enters the first cavity 114 through the first air inlet hole 11221, and participates in the combustion at the fire hole 122 through the spacing between the fire row single pieces 12, so that the gas can be fully combusted, the combustion condition is ensured, the combustion efficiency is improved, and the smoke emission is reduced. In addition, since the first air control plate 14 is arranged between the gas distribution rod assembly 13 and the second connecting plate 1122, that is, the first air control plate 14 separates the second cavity 142 and the third cavity 144 from each other, so that the negative pressure at the first air inlet hole 11221 does not affect the primary air entering the second cavity 142, and sufficient primary air enters the second cavity 142 through the first air inlet 141, so that the combustion condition can be better ensured, the combustion is more sufficient, the combustion efficiency is effectively improved, and the smoke emission is reduced.

[0059] In addition, because the required amount of primary air can be easily achieved, and the ratio of the amount of primary air to the amount of secondary air can be better matched, compared with the traditional burner 10, the power and the rotating speed of the fan 50 can be appropriately reduced, which is beneficial to reduce the noise of the fan 50, further beneficial to reduce the working noise of the gas water heater, and has a good noise reduction effect.

[0060] Please refer to Figure 4 and Figure 8 Further, the burner 10 further comprises an ignition assembly 30 arranged on the first side plate 112 or the second side plate 113, which ignites the gas sprayed out of the fire hole 122 of the fire row single piece 12. In addition, the gas equipment further comprises a heat exchanger 40, a fan 50 and an exhaust pipe 60 arranged in the fourth cavity 21. The heat exchanger 40 is connected with the burner 10, the burner 10 transmits heat energy to the heat exchanger 40, and the heat exchanger 40 transmits heat energy to the water pipe. When the fan 50 works, water negative pressure can be generated, on the one hand, the gas and air are sucked to the fire hole 122 of the fire row single piece 12 to be combusted, and on the other hand, the high-temperature flue gas is gathered and discharged to the outside of the second shell 20 through the exhaust pipe.

[0061] It should be noted that one of the elements described in the present application is connected to another element, and one of the elements is installed on another element. It can be understood that the connection mode of the two elements can be connected by bolts, screws, pins, rivets, etc. or fixedly connected by clamping, welding or integral molding. Among them, the integral molding mode can adopt extrusion, casting, press fitting, injection molding and the like.

[0062] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0063] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

[0064] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0065] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0066] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", and "fixing" should be construed as broad terms, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0068] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

Claims

1. A burner, characterized by The burner (10) comprises: A first shell (11) comprising a bottom plate (111), a first side plate (112) and at least one second side plate (113) connected to the bottom plate (111), the bottom plate (111), the first side plate (112) and the at least one second side plate (113) enclosing a first cavity (114); the first side plate (112) comprises a first connecting plate (1121), a second connecting plate (1122) and a third connecting plate (1123) connected in sequence from bottom to top; a plurality of fixing openings (11211) are arranged on the first connecting plate (1121), and a plurality of first air inlet holes (11221) communicating with the first cavity (114) are arranged on the second connecting plate (1122); A plurality of fire grate single pieces (12) are arranged, the injection end (121) of the fire grate single piece (12) is correspondingly arranged in the fixing opening (11211), and a plurality of nozzles (131) corresponding to the injection end (121) of the fire grate single piece (12) are arranged on the gas distribution rod assembly (13); A first air control plate (14) is arranged between the gas distribution rod assembly (13) and the second connecting plate (1122), the first air control plate (14) and the gas distribution rod assembly (13) are arranged in a spaced manner to form a first air inlet (141), the first air control plate (14), the gas distribution rod assembly (13) and the first connecting plate (1121) enclose a second cavity (142), the second cavity (142) and the first air inlet (141) are in communication; the first air control plate (14) and the second connecting plate (1122) are arranged in a spaced manner to form a second air inlet (143), the first air control plate (14) and the second connecting plate (1122) enclose a third cavity (144), and the third cavity (144) and the second air inlet (143) are in communication; Wherein, the first air control plate (14) and the first connecting plate (1121) are arranged at an included angle, the distance between the end of the first air control plate (14) away from the first connecting plate (1121) and the bottom plate (111) is greater than the distance between the other end of the first air control plate (14) and the bottom plate (111); a first mounting plate (145) is arranged on the first air control plate (14), the first mounting plate (145) is connected to the second connecting plate (1122) or the third connecting plate (1123); the position of the first mounting plate (145) on the second connecting plate (1122) or the third connecting plate (1123) is adjustable, so as to change the distance L between the first air control plate (14) and the second connecting plate (1122).

2. The burner of claim 1, wherein The included angle between the first air control plate (14) and the first connecting plate (1121) is a, and a is 95° to 135°.

3. The burner of claim 1, wherein The combustor (10) further comprises a second air control plate (15) stacked on the first connecting plate (1121); the second air control plate (15) is provided with an air vent (151) in communication with the fixed port (11211).

4. The burner of claim 3, wherein The first air control plate (14) is connected to the top end of the second air control plate (15) near one end of the first connecting plate (1121).

5. The burner of claim 1, wherein The bottom plate (111) is provided with a plurality of second air inlets (1111) in communication with the first cavity (114); the combustor (10) further comprises a third air control plate (16) arranged opposite to the first air control plate (14), the third air control plate (16) being arranged between the bottom plate (111) and the first connecting plate (1121) to separate the lower area of the bottom plate (111) from the second cavity (142).

6. The burner of claim 5, wherein The third air control plate (16) is further arranged apart from the air distribution rod assembly (13) to form a third air inlet (161), the second cavity (142) being in communication with the third air inlet (161).

7. The burner of claim 6, wherein The third air control plate (16) is arranged at an angle with the first connecting plate (1121), the angle between the side surface of the third air control plate (16) facing the first air control plate (14) and the first connecting plate (1121) being b; the angle b is 95° to 135°.

8. The burner of claim 6, wherein The air distribution rod assembly corresponds to the outer wall at the first air inlet (141) in an arc shape; and / or, the air distribution rod assembly corresponds to the outer wall at the third air inlet (161) in an arc shape.

9. The burner of claim 6, wherein The opening area of the second air inlet (143) is S1, the sum of the areas of all the first air inlets (11221) on the second connecting plate (1122) is S2, and the sum of the areas of all the second air inlets (1111) on the bottom plate (111) is S3; the ratio of S2 to S1 is 1.5 to 5, and the ratio of S3 to S1 is 3 to 10.

10. A gas appliance characterised in that, The gas equipment comprises the combustor (10) according to any one of claims 1 to 9; the gas equipment further comprises a second shell (20) provided with a fourth cavity (21) therein, the second shell (20) being provided with a fourth air inlet (22) in communication with the fourth cavity (21); and the combustor (10) is arranged in the fourth cavity (21).

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