Fire bar assembly and burner having the same

Abstract

The present invention discloses a fire grate assembly and a burner having the same. The fire grate assembly includes a fire grate body, a combustion plate, and an air baffle. The fire grate body includes an air inlet, an air outlet, and a body. The air inlet has an air inlet hole, the air outlet has an air outlet channel and an air outlet hole, and the air outlet channel is connected to the air outlet hole. The body has a gas channel, and the gas channel connects the air inlet and the air outlet channel. The combustion plate is suitable for installation at the air outlet hole of the fire grate body. The air baffle is located between the combustion plate and the fire grate body, and the air baffle is arranged at one end of the combustion plate near the intersection of the gas channel and the air outlet channel. Therefore, the air baffle can partially block the gas velocity near the junction of the gas channel and the air outlet channel at the air outlet hole, thereby improving the problem of different gas discharge velocities at the air outlet hole of the fire grate body, and ensuring that the height of the combustion flame of the fire grate assembly is relatively uniform.

Description

Technical Field

[0001] The present invention relates to the field of burners, and in particular to a fire bar assembly and a burner having the same. Background Art

[0002] At present, existing burners (such as gas water heater burners) will have uneven flame distribution during the combustion process. Among them, the side of the fire grate body close to the nozzle has a low gas velocity and a shorter flame, while the side of the fire grate body away from the nozzle has a high gas velocity and a higher flame, resulting in uneven flame distribution, which has an adverse effect on the flue gas emissions, noise, etc. of the gas water heater. Summary of the Invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present invention provides a fire bar assembly that can ensure uniform flame distribution during combustion.

[0004] The present invention also provides a burner having the fire bar assembly.

[0005] According to an embodiment of the present invention, a fire grate assembly includes: a fire grate body, a combustion plate and an air baffle, the fire grate body includes: an air inlet, an air outlet and a body, the air inlet is located on the lower side of the body, the air inlet has an air inlet hole, the air outlet is located on the upper side of the body, the air outlet has an air outlet channel and an air outlet, the air outlet channel is connected with the air outlet, the body has a gas channel, the gas channel connects the air inlet hole and the air outlet channel, the combustion plate is suitable for being installed at the air outlet of the fire grate body, the air baffle is located between the combustion plate and the fire grate body, and the air baffle is arranged at one end of the combustion plate near the intersection of the gas channel and the air outlet channel.

[0006] By arranging an air baffle between the fire grate body and the combustion plate, and the air baffle is located at one end close to the intersection of the gas channel and the air outlet channel, the speed of the gas discharged from the air outlet near the connection between the gas channel and the air outlet channel can be partially blocked, so that the blocked gas is discharged from the air outlet away from the connection between the gas channel and the air outlet channel, thereby improving the problem of different gas discharge speeds at the air outlet of the fire grate body, ensuring that the height of the combustion flame of the fire grate assembly is relatively uniform, and also helping to improve the combustion completeness of the gas and reduce the noise during combustion.

[0007] According to some embodiments of the present invention, the air baffle is directly opposite to the junction of the gas channel and the gas outlet channel.

[0008] According to some embodiments of the present invention, the air baffle is provided with a plurality of air outlets, and the plurality of air outlets are arranged at intervals along the length direction of the air baffle.

[0009] Furthermore, the air outlet hole is an elongated air outlet hole, the air outlet channel is located at the lower end of the air outlet portion, the air baffle is an elongated air baffle, and the length of the air baffle is smaller than the length of the air outlet channel.

[0010] Furthermore, the length of the air baffle is not less than 1 / 3 of the air outlet.

[0011] Specifically, the length of the air baffle is no more than 1 / 2 of the air outlet.

[0012] Specifically, the gas channel includes: a first channel, an intermediate channel and a second channel connected in sequence, the first channel is connected to the air outlet channel, the second channel is connected to the air inlet, the intermediate channel is located between the first channel and the second channel, the first channel is a straight section, the intermediate channel is a curved section, the second channel is a diffusion section, and the air baffle is opposite the curved section.

[0013] According to another embodiment of the present invention, a burner includes a fire row rack and the above-mentioned fire row assembly. There are multiple fire row assemblies, and the multiple fire row assemblies are arranged in the fire row rack.

[0014] Furthermore, a main air inlet hole is provided on one side of the fire bar rack, and the air inlet holes of the plurality of fire bar assemblies are connected to the main air inlet hole through an air inlet pipe.

[0015] Furthermore, an ignition device is provided on the fire bar rack, and the ignition device is located above the fire bar assembly.

[0016] The burner has the same advantages as the above-mentioned fire bar assembly over the prior art, which will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a disassembled diagram of the fire bar assembly;

[0019] Figure 2 It is a schematic diagram of the fire bar assembly;

[0020] Figure 3 is a schematic diagram of the burner.

[0021] Reference numerals:

[0022] Fire row assembly 10, fire row body 1, air inlet part 2, air inlet hole 21, air outlet part 3, air outlet channel 31, air outlet hole 32, body part 4, gas channel 41, first channel 42, second channel 43, third channel 44, combustion plate 5, air baffle 51, burner 6, fire row frame 61, main air inlet hole 62, ignition device 63. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0025] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] The following combination Figure 1-Figure 3 The fire bar assembly 10 according to an embodiment of the present invention will be described in detail.

[0027] Reference Figure 1 As shown, the fire grate body 1, the combustion plate 5 and the air baffle 51, the fire grate body 1 includes: an air inlet part 2, an air outlet part 3 and a main body 4, the air inlet part 2 is located on the lower side of the main body 4, the air inlet part 2 has an air inlet hole 21, the air outlet part 3 is located on the upper side of the main body 4, the air outlet part 3 has an air outlet channel 31 and an air outlet hole 32, the air outlet channel 31 is connected with the air outlet hole 32, the main body 4 has a gas channel 41, the gas channel 41 connects the air inlet hole 21 and the air outlet channel 31, that is, the fire grate body 1 can be composed of three parts: the air inlet part 2, the air outlet part 3 and the main body 4, and the main body 4 is provided with a gas channel 41 connecting the air inlet hole 21 of the air inlet part 2 and the air outlet channel 31 of the air outlet part 3.

[0028] In a specific embodiment, a nozzle is provided on the outside of the fire grate body 1, and the nozzle is opposite to the air inlet 21 and is connected to the air inlet 21, and the nozzle can spray gas toward the air inlet 21. After the gas enters from the air inlet 21, it circulates through the gas channel 41, and then enters the air outlet channel 31 and is discharged from the air outlet 32, so as to ignite and burn the gas. In this process, when the gas in the gas channel 41 flows to the air outlet channel 31, due to the action of the gas inertia force, most of the gas volatilizes toward the direction of the connection between the gas channel 41 and the air outlet channel 31, and then is discharged from the air outlet 32, resulting in the gas speed discharged from the air outlet 32 ​​away from the connection between the gas channel 41 and the air outlet channel 31 being much smaller than the gas speed discharged from the air outlet 32 ​​close to the connection between the gas channel 41 and the air outlet channel 31. Therefore, when the fire grate assembly 10 is burned, there is a risk of uneven combustion flame of the fire grate assembly 10.

[0029] Further, if Figure 1-Figure 2 As shown, the combustion plate 5 is suitable for being installed at the gas outlet 32 ​​of the fire bar body 1 so as to burn the gas discharged from the gas outlet 32 ​​.

[0030] In a specific embodiment, the air baffle 51 can be fixed under the combustion plate 5, and there is a certain gap between the air baffle 51 and the air outlet 32, so as to prevent the air baffle 51 from completely blocking the gas, causing abnormal combustion of the fire bar assembly 10.

[0031] Further, if Figure 1 As shown, the air baffle 51 is located between the combustion plate 5 and the fire grate body 1, and the air baffle 51 is arranged at one end of the combustion plate 5 near the intersection of the gas channel 41 and the gas outlet channel 31. Therefore, the air baffle 51 can partially block the speed of the gas discharged from the gas outlet 32 ​​near the connection between the gas channel 41 and the gas outlet channel 31. The blocked gas is forced to change its flow direction under the pressure of the subsequent surging gas, and is discharged from the gas outlet 32 ​​away from the connection between the gas channel 41 and the gas outlet channel 31. This can ensure that the height of the combustion flame of the fire grate assembly 10 is relatively uniform, and is also beneficial to improving the combustion completeness of the gas and reducing the noise during combustion.

[0032] According to the fire grate assembly 10 of the embodiment of the present invention, an air baffle 51 is provided between the fire grate body 1 and the combustion plate 5, and the air baffle 51 is located at one end close to the intersection of the gas channel 41 and the gas outlet channel 31. Therefore, the speed of the gas discharged from the gas outlet 32 ​​near the connection between the gas channel 41 and the gas outlet channel 31 can be partially blocked, so that the blocked gas is discharged from the gas outlet 32 ​​away from the connection between the gas channel 41 and the gas outlet channel 31, thereby improving the problem of different gas discharge speeds at the gas outlet 32 ​​of the fire grate body 1, ensuring that the height of the combustion flame of the fire grate assembly 10 is relatively uniform, and also conducive to improving the combustion completeness of the gas and reducing the noise during combustion.

[0033] Furthermore, if Figure 1 As shown, the air baffle 51 is facing the intersection of the gas channel 41 and the gas outlet channel 31, so that the air baffle 51 can better block the position where the gas discharge speed is the largest, thereby further improving the speed consistency of the gas discharged from the exhaust hole, and ensuring the high uniformity of the combustion flame height of the fire grate assembly 10.

[0034] Furthermore, the air baffle plate 51 is provided with a plurality of air outlets, and the plurality of air outlets are arranged at intervals along the length direction of the air baffle plate 51, which can prevent the air baffle plate 51 from blocking too much gas near the connection between the air outlet hole 32 and the gas channel 41 and the air outlet channel 31, thereby causing the gas discharge speed near the connection between the air outlet hole 32 and the gas channel 41 and the air outlet channel 31 to be too low, thereby causing the height of the combustion flame of the fire bar assembly 10 to be uneven. Therefore, by providing the air baffle plate 51 with a plurality of air outlets arranged at intervals along the length direction of the air baffle plate 51, it can be ensured that an appropriate portion of the gas can be discharged from the air outlet hole 32 near the connection between the gas channel 41 and the air outlet channel 31, thereby ensuring the uniformity of the height of the combustion flame of the fire bar assembly 10.

[0035] Furthermore, if Figure 1-Figure 2 As shown, the air outlet 32 ​​can be a long strip air outlet 32, the air outlet channel 31 is located at the lower end of the air outlet portion 3, and the air baffle 51 is a long strip air baffle 51. The length of the air baffle 51 is smaller than the length of the air outlet channel 31, thereby ensuring that the air baffle 51 can block part of the gas.

[0036] Furthermore, the length of the air baffle 51 is not less than 1 / 3 of the air outlet 32, and the length of the air baffle 51 is not greater than 1 / 2 of the air outlet 32. That is, the length of the air baffle 51 is between 1 / 3 and 1 / 2 of the length of the air outlet 32, ensuring that the air baffle 51 can appropriately block the gas discharge speed of the air outlet 32 ​​near the connection between the gas channel 41 and the air outlet channel 31, ensuring that the speed of gas discharge from the air outlet 32 ​​is uniform, thereby ensuring that the height of the combustion flame of the fire bar assembly 10 is uniform.

[0037] exist Figure 1-Figure 2 In the embodiment shown, the gas channel 41 may include: a first channel 42, an intermediate channel and a second channel 43 connected in sequence, the first channel 42 is connected to the gas outlet channel 31, the second channel 43 is connected to the air inlet 21, and the intermediate channel is located between the first channel 42 and the second channel 43. The first channel 42 is a straight section, the intermediate channel is a curved section, and the second channel 43 is a diffusion section. The air baffle 51 is facing the curved section. Therefore, after the gas flows out of the second channel 43, it flows to the third channel 44. Under the action of inertia, most of the gas still flows in the direction of the curve of the second channel 43. Therefore, the air baffle 51 is facing the curved section to block the position where the gas velocity is higher, so that more gas can be diffused from the third channel 44 to the gas outlet channel 31, thereby making the gas discharge speed at the gas outlet 32 ​​consistent, thereby ensuring the uniform height of the combustion flame of the fire bar assembly 10.

[0038] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] According to another embodiment of the present invention, the burner 6 is as follows: Figure 3 As shown, it includes a fire bar rack 61 and the above-mentioned fire bar assembly 10 . There are multiple fire bar assemblies 10 , and the multiple fire bar assemblies 10 are arranged in the fire bar rack 61 .

[0040] Furthermore, if Figure 3 As shown, a main air inlet 62 is provided on one side of the fire row rack 61, and the air inlet holes 21 of multiple fire row assemblies 10 are connected to the main air inlet 62 through an air inlet pipe, thereby ensuring that the gas can be diverted from the main air inlet 62 to the air inlet 21 of each fire row assembly 10, and the nozzle located at the air inlet 21 can pressurize the gas, thereby ensuring that the air intake pressure of the fire row assembly 10 is sufficient.

[0041] Furthermore, an ignition device 63 is provided on the fire bar rack 61. The ignition device 63 is located above the fire bar assembly 10. The ignition device 63 can ignite the gas discharged by the fire bar assembly 10 to ensure that the gas can burn on the combustion plate 5 of the fire bar assembly 10.

[0042] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0043] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fire bar assembly, characterized in that: include: The fire grate body comprises: an air inlet, an air outlet, and a body, wherein the air inlet is located on a lower side of the body and has an air inlet hole, and the air outlet is located on an upper side of the body and has an air outlet channel and an air outlet hole, wherein the air outlet channel is connected to the air outlet hole, and the body has a gas channel, wherein the gas channel connects the air inlet hole and the air outlet channel; A combustion plate, the combustion plate being adapted to be mounted at the air outlet of the fire bar body; An air baffle is fixed between the combustion plate and the fire bar body, and the air baffle is arranged at one end of the combustion plate close to the intersection of the gas channel and the air outlet channel; the length of the air baffle is less than the length of the air outlet channel.

2. The fire bar assembly according to claim 1, characterized in that: The air baffle is directly opposite to the junction of the gas channel and the gas outlet channel.

3. The fire bar assembly according to claim 1, characterized in that: The air baffle is provided with a plurality of air outlets, and the plurality of air outlets are arranged at intervals along the length direction of the air baffle.

4. The fire bar assembly according to claim 3, characterized in that: The air outlet hole is a long strip air outlet hole, the air outlet channel is located at the lower end of the air outlet portion, and the air baffle is a long strip air baffle.

5. The fire bar assembly according to claim 4, characterized in that: The length of the air baffle is not less than 1 / 3 of the air outlet.

6. The fire bar assembly according to claim 4 or 5, characterized in that: The length of the air baffle is no greater than 1 / 2 of the air outlet.

7. The fire bar assembly according to claim 1 or 2, characterized in that: The gas channel includes: a first channel, an intermediate channel and a second channel connected in sequence, the first channel is connected to the gas outlet channel, the second channel is connected to the gas inlet hole, the intermediate channel is located between the first channel and the second channel, the first channel is a straight section, the intermediate channel is a curved section, the second channel is a diffusion section, and the air baffle is opposite to the curved section.

8. A burner, characterized in that: It comprises a fire row rack and the fire row assembly according to any one of claims 1 to 7, wherein there are multiple fire row assemblies, and the multiple fire row assemblies are arranged in the fire row rack.

9. The burner according to claim 8, characterized in that A main air inlet hole is provided on one side of the fire bar rack, and the air inlet holes of the plurality of fire bar assemblies are connected to the main air inlet hole through an air inlet pipe.

10. The fire bar assembly according to claim 9, characterized in that: An ignition device is provided on the fire row frame, and the ignition device is located above the fire row assembly.

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