A burner and a gas appliance

Abstract

A burner and a gas appliance, comprising a gas distribution rod, nozzles provided on the gas distribution rod, and a number of burner row units. Each burner row unit includes an ejector tube part, a mixing chamber part, a flow splitting part, and a combustion chamber part. Combustion holes are provided on the top plate of the combustion chamber part; through holes are provided on the mixing chamber part; it further includes a blower and an air distribution pipe. The air distribution pipe is provided with an air hole group arranged along the length direction. The blower is communicated with the air distribution pipe. The air distribution pipe passes through the through hole of the mixing chamber part and is sealed. The air distribution hole group is located inside the mixing chamber part. With such a structure, the setting of the air distribution pipe, on the one hand, provides primary air, and the air distribution pipe in the mixing chamber part plays a role in disturbing the flow, enabling the gas and air to be fully mixed. On the other hand, it is beneficial to the heat dissipation of the burner row unit.

Description

Technical Field

[0001] The present invention relates to a gas burner. Background Art

[0002] In the current prior art, a burner includes a gas distributing rod, nozzles provided on the gas distributing rod, and a plurality of burner row units. Each burner row unit includes an ejector tube part, a mixing chamber part, a shunt part, and a combustion chamber part. Combustion holes are provided on the top plate of the combustion chamber part; the gas ejected from the nozzles and the primary air enter the ejector tube together. The problem is that when the burner works, the temperature rises, the gradient of the load drop is large, and the energy efficiency is reduced. Summary of the Invention

[0003] The object of the present invention is to provide a burner which has the characteristics of sufficient gas combustion, a small gradient of load drop, and high energy efficiency.

[0004] The present invention is realized as follows: A burner includes a gas distributing rod, nozzles provided on the gas distributing rod, and a plurality of burner row units. Each burner row unit includes an ejector tube part, a mixing chamber part, a shunt part, and a combustion chamber part. Combustion holes are provided on the top plate of the combustion chamber part; the special feature is that: a through hole is provided on the mixing chamber part;

[0005] It further includes a blower and an air distribution pipe. The air distribution pipe is provided with an air hole group arranged along the length direction,

[0006] The blower is communicated with the air distribution pipe. The air distribution pipe passes through the through hole of the mixing chamber part and is sealed, and the air distribution hole group is located inside the mixing chamber part.

[0007] For the described burner, the special feature is that: punching flanges are provided on the through holes on the two wall plates of the mixing chamber part, and the punching flanges are attached and sealed to the air distribution pipe.

[0008] For the described burner, the special feature is that: the air hole group is composed of one or more than two air guide holes.

[0009] For the described burner, the special feature is that: the inlet end of the ejector tube part is open, the nozzle is opposite to the inlet end opening, and the primary air and the gas enter the ejector tube part together.

[0010] For the described burner, the special feature is that: a end cover plate is provided at the inlet end opening of the ejector tube part, a nozzle hole is provided on the end cover plate, and the nozzle is inserted into the nozzle hole.

[0011] A gas appliance, the special feature is that: it includes the burner as described above.

[0012] A gas appliance according to the present invention, due to the adoption of such a structure, the air distribution pipe is provided. Firstly, it provides primary air, and the air distribution pipe in the mixing chamber part plays a role in disturbing the flow, enabling the gas and air to be fully mixed. Secondly, it is beneficial to the heat dissipation of the burner unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the present invention.

[0014] Figure 2 is the top view of the present invention.

[0015] Figure 3 is the view of the cooperation between the burner unit and the gas distribution rod of the present invention.

[0016] Figure 4 is the view of the second embodiment of the cooperation between the burner unit and the gas distribution rod of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] As Figure 1 , Figure 2 , Figure 3 shown, a burner includes a gas distribution rod 1, a nozzle 2 provided on the gas distribution rod, and a plurality of burner units 3. The burner unit 3 includes an ejector tube part 31, a mixing chamber part 32, a shunt part 33, and a combustion chamber part 34. Combustion holes are provided on the top plate of the combustion chamber part 34;

[0019] A through hole 321 is provided on the mixing chamber part 32;

[0020] It further includes a fan 4 and an air distribution pipe 5. An air hole group 51 is provided on the air distribution pipe 5 along the length direction,

[0021] The fan 4 is communicated with the air distribution pipe 5. The air distribution pipe 5 passes through the through hole 321 of the mixing chamber part 32 and is sealed, and the air distribution hole group 51 is located in the mixing chamber part 32.

[0022] As a further improvement of the present invention: punching flanges are provided on the through holes 321 on the two wall plates of the mixing chamber part 32, and the punching flanges are in close contact and sealed with the air distribution pipe 5. By adopting such a structure, the heat dissipation area is increased, and the temperature rise of the burner unit 3 is reduced.

[0023] The air hole group 51 is composed of one air guide hole, and two or more air guide holes can be provided according to needs.

[0024] As Figure 3 shown, the intake end of the ejector tube part 31 is open, and the nozzle 2 is opposite to the intake end opening, and the primary air and gas enter the ejector tube part 31 together.

[0025] As shown Figure 4 As shown, an end cover plate is provided at the air inlet opening of the ejector tube portion 31, and a nozzle hole is provided on the end cover plate, and the nozzle 2 is inserted into the nozzle hole.

[0026] A gas appliance includes the burner as described above. The gas appliance is a gas water heater, a gas wall-mounted boiler or a gas steam boiler.

[0027] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principle of the present invention, which are also regarded as the protection scope of the present invention.

Claims

1. A burner, comprising a gas distributing rod, nozzles provided on the gas distributing rod, and a number of individual burner units. Each individual burner unit includes an ejector tube portion, a mixing chamber portion, a flow dividing portion, and a combustion chamber portion. Combustion holes are provided on the top plate of the combustion chamber portion; It is characterized in that: Through holes are provided on the mixing chamber portion; It further includes a blower and an air distribution pipe. Air hole groups are provided on the air distribution pipe along the length direction, The blower is communicated with the air distribution pipe. The air distribution pipe passes through the through holes of the mixing chamber portion and is sealed. The air distribution hole groups are located inside the mixing chamber portion; The intake end of the ejector tube portion is open. The nozzle is opposite to the open intake end. Primary air and gas enter the ejector tube portion together; The air distribution pipe in the mixing chamber portion plays a role in disturbing the flow, enabling the gas and air to be fully mixed and supplementing air, which is beneficial to the heat dissipation of the individual burner units.

2. A burner according to claim 1, It is characterized in that: Punched flanges are provided on the through holes on the two wall plates of the mixing chamber portion. The punched flanges are in sealing fit with the air distribution pipe.

3. A burner according to claim 1, It is characterized in that: The air hole groups are composed of one or more than two air guide holes.

4. A burner according to claim 1, 2 or 3, It is characterized in that: The intake end opening of the ejector tube portion is provided with an end cover plate. Nozzle holes are provided on the end cover plate. The nozzle is inserted into the nozzle holes.

5. A gas appliance, It is characterized in that: It includes the burner according to any one of claims 1-4.

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