CN211316167U - Burner and gas water heater having the same - Google Patents

Abstract

The embodiment of the present utility model provides a burner and a gas water heater having the same, wherein the gas water heater includes: at least one fire row; The guide hole penetrates the guide plate in the thickness direction of the guide plate, and the guide hole is used to guide air to the fire row. According to the burner of the embodiment of the present invention, the secondary air is guided to the plurality of fire rows by setting a plurality of guide holes, so that the mixing of the gas and the secondary air is more uniform, so that the combustion of the gas is more sufficient, and the reduction of The content of carbon monoxide in the flue gas has high environmental protection benefits.

Description

Burner and gas water heater having the same

technical field

The utility model relates to the field of gas equipment, in particular to a cold burner and a gas water heater having the same.

Background technique

The gas-fired water heaters in the related art generally adopt the method of lowering the flame temperature to reduce the emission of nitrogen oxides. However, due to the low flame temperature, insufficient combustion and low combustion efficiency will occur, resulting in an increase in the carbon monoxide content in the flue gas, and low environmental benefits.

Utility model content

Embodiments of the present invention provide a cooling body, a burner having the same, and a gas water heater, so as to solve or alleviate one or more technical problems in the prior art.

In the first aspect, an embodiment of the present utility model provides a burner, comprising: at least one fire row; The guide plate is penetrated in the thickness direction of the guide plate, and the guide hole is used to guide air to the fire row.

In one embodiment, the plurality of guide holes are distributed in an array on the guide plate.

In one embodiment, the plurality of guide holes include multiple groups of first guide holes, multiple groups of second guide holes, and multiple groups of third guide holes, wherein the diameter of the second guide holes is larger than The diameter of the first guide hole is smaller than the diameter of the third guide hole.

In one embodiment, two groups of first guide holes and a group of second guide holes are disposed between two adjacent groups of third guide holes, and one group of second guide holes is located in the two groups of first guide holes. between the orifices.

In one embodiment, the two groups of third guide holes are located on both sides of the projection of the fire row on the plane where the baffle plate is located, and the group of second guide holes are arranged directly opposite the fire row.

In one embodiment, the burner further comprises: two side wind deflectors arranged opposite to each other, the two side wind deflectors are respectively connected to the left edge and the right edge of the deflector, and the fire row is located on the two sides between the windshields.

In one embodiment, the burner further comprises: a front windshield, the front windshield is connected to the front side edge of the deflector, and the front windshield is located on the front side of the fire row.

In a second aspect, an embodiment of the present invention provides a gas-fired water heater, comprising: an outer casing defining a heat exchange cavity; and a burner according to the embodiment of the first aspect of the disclosure, the burner being located in the heat exchange cavity.

The burner of the embodiment of the present invention adopts the above technical scheme, and guides the secondary air to the plurality of fire exhausts through the plurality of guide holes, so that the mixing of the fuel gas and the secondary air is more uniform, so that the combustion of the fuel gas is more sufficient. Further, the content of carbon monoxide in the flue gas is reduced, and the environmental protection benefit is high.

The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description.

Description of drawings

In the drawings, unless stated otherwise, the same reference numbers refer to the same or like parts or elements throughout the several figures. The drawings are not necessarily to scale. It should be understood that these drawings depict only some embodiments disclosed in accordance with the present invention and should not be considered as limiting the scope of the present invention.

FIG. 1 shows a schematic structural diagram of a burner according to an embodiment of the present invention;

Figure 2 shows an exploded view of a burner according to an embodiment of the present invention;

FIG. 3 shows a schematic structural diagram of a baffle of a burner according to an embodiment of the present invention;

FIG. 4 shows a schematic diagram of a partial structure of a baffle of a burner according to an embodiment of the present invention;

FIG. 5 shows a schematic structural diagram of a gas water heater according to an embodiment of the present invention.

Description of reference numbers:

Gas water heater 1000;

burner 100;

Housing 10; air guide plate 11; air guide hole 12; first air guide hole 121; second air guide hole 122; third air guide hole 123; side wind shield 13; front wind shield 14;

Fire row 20; Fire hole 21;

shunt device 30;

shell 200; heat exchange cavity 200a;

heat exchanger 300;

Fan 400.

Detailed ways

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

The burner 100 according to the embodiment of the present invention will be described below with reference to FIGS. 1-4 . The burner 100 of the embodiment of the present invention can be used for the gas water heater 1000 .

As shown in FIGS. 1 and 2 , the burner 100 according to the embodiment of the present invention includes a fire row 20 and a baffle plate 11 . Among them, there is at least one fire row 20 , the fire row 20 is installed above the deflector 11 , the deflector 11 is provided with a plurality of deflector holes 12 , and the deflector holes 12 pass through the deflector in the thickness direction of the deflector 11 . The plate 11 and the guide holes 12 are used to guide air to the fire row 20 .

It can be understood that the fire row 20 is used for guiding the mixture of combustible gas and air, and the mixture flowing out of the fire row 20 generates a flame after being ignited. In one example, the top of the fire row 20 has a fire hole 21 that is opened upward, and the mixed gas flows upward from the fire hole 21 . After the mixture is ignited, a flame is generated just above the fire row 20 to form a flame above the fire row 20 . burning area.

According to the burner of the embodiment of the present invention, by arranging a plurality of guide holes 12 on the guide plate 11, during the combustion process of the burner 100, the plurality of guide holes 12 can be used to guide the flow of water to the plurality of fire exhausts 20 through the plurality of guide holes 12. The secondary air is used to make the mixing of the gas and the secondary air more uniform, so that the combustion of the gas is more sufficient, thereby reducing the content of carbon monoxide in the flue gas, and the environmental protection benefits are high.

In one embodiment, as shown in FIGS. 3 and 4 , a plurality of guide holes 12 are distributed in an array on the guide plate 11 . Specifically, the guide holes 12 are arranged in multiple groups at intervals along the length direction of the guide plate 11 (ie, the left-right direction in the figure), and the multiple guide holes 12 in each group are arranged along the width direction of the guide plate 11 (ie, the left-right direction in the figure). The front and rear directions in the illustration) are set at intervals.

In one embodiment, as shown in FIG. 4 , the multiple groups of guide holes 12 include multiple groups of first guide holes 121 , multiple groups of second guide holes 122 and multiple groups of third guide holes with different diameters. 123. The diameter of the second guide hole 122 is larger than that of the first guide hole 121 and smaller than the diameter of the third guide hole 123 .

Multiple groups of first guide holes 121 , multiple groups of second guide holes 122 , and multiple groups of third guide holes 123 are staggered in the length direction of the guide plate 11 (ie, the left-right direction in the figure), and each group is staggered. The first guide holes 121 are arranged at intervals along the width direction of the guide plate 11 (ie, the front-to-back direction in the figure). The flow holes 123 are arranged at intervals along the width direction of the guide plate 11 . Therefore, the flow rates of the air entering the fire exhaust 20 through the first guide hole 121 , the second guide hole 122 and the third guide hole 123 are different, so that the mixing of the secondary air and the gas can be more uniform, so that the The combustion of the mixture is more complete.

Further, as shown in FIG. 4 , two groups of first guide holes 121 and a group of second guide holes 122 are provided between two adjacent groups of third guide holes 123 , and a group of second guide holes 122 is located between the two groups of first guide holes 121 . Preferably, the two groups of third air guide holes 123 are located on both sides of the projection of the fire row 20 on the plane where the air guide plate 11 is located, and the group of second air guide holes 122 are disposed opposite to the fire row 20 . In this way, one group of second guide holes 122 and two groups of first guide holes 121 can be used to supplement the secondary air to the fire row 20 , and the two groups of third guide holes 123 can be used to supply the air between the two fire rows 20 . The space is supplemented with accelerated air, and the accelerated air is used to increase the flow rate of the intersecting jet formed by the flame above the fire row 20, thereby further improving the mixing effect of the secondary air and the fuel, and is beneficial to increase the flow rate of the intersecting jet, and the mixed gas combustion is more complete.

In one example, the burner 100 further includes a casing 10 , a baffle 11 is formed on the bottom wall of the casing 10 , and a plurality of fire bars 20 are installed above the baffle 11 . Therefore, the setting of the deflector 11 is more convenient, and it is favorable for the air to flow upward from the plurality of guide holes 12 on the deflector 11 to the fire row 20, so as to form an upward-flowing jet above the fire row 20. It is beneficial to improve the interference effect of the cooling body 10 on the flame, so as to better form the intersecting jet.

In an embodiment, as shown in FIG. 3 , the burner 100 further includes two side wind deflectors 13 arranged opposite to each other, and the two side wind deflectors 13 are respectively connected to the left edge and the right side of the deflector 11 . At the edge, the fire row 20 is located between the two side wind deflectors 13 . In this way, the air on the left and right sides of the casing 10 can be prevented from directly entering the interior of the casing 10 , thereby ensuring that the flow direction of the secondary air after entering the casing 10 through the guide holes 12 will not be disturbed.

In one embodiment, as shown in FIG. 3 , the burner 100 further includes a front windshield 14 , the front windshield 14 is connected to the front side edge of the deflector 22 , and the front windshield 14 is located on the side of the fire row 20 . front side. In this way, the air on the front side of the casing 10 can be prevented from directly entering the interior of the casing 10 , and the front windshield 14 , the two side windshields 13 on the left and right sides, and the wind deflector 22 together form a pair of the casing 10 . The inner left and right sides, the front side and the lower side are sealed to further ensure the flow direction of the secondary air entering the interior of the casing 10 through the guide hole 12 .

In one embodiment, as shown in FIG. 1 and FIG. 2 , the burner 100 further includes a flow dividing device 30 , and the flow dividing device 30 is used to divide the gas and deliver the divided gas to the plurality of fire exhausts 20 . Further, after the gas is fully mixed with the air in the fire row 20, it flows out through the fire hole 21 at the top of the fire row 20, and the mixed gas is ignited to form a flame.

The gas water heater 1000 according to the embodiment of the present invention will be described below with reference to FIG. 5 . The gas water heater 1000 of the embodiment of the present invention may be a gas heating water heater, and further, may be a wall-hung boiler.

As shown in FIG. 5 , the gas water heater 1000 includes a casing 200 and the burner 100 according to the above-mentioned embodiment of the present invention. Wherein, a heat exchange cavity 200a is defined in the casing 200, and the burner 100 is located in the heat exchange cavity 200a.

According to the gas-fired water heater 1000 according to the embodiment of the present invention, by using the burner 100 according to the above-mentioned embodiment of the present invention, the problem of increasing the content of carbon monoxide caused by insufficient combustion of the burner during the combustion process can be solved, and the content of carbon monoxide can be effectively reduced. Carbon monoxide emissions have high environmental benefits.

In one embodiment, as shown in FIG. 5 , the gas water heater 1000 may further include a heat exchanger 300 and a fan 400 . The heat exchanger 300 is arranged in the heat exchange chamber 200a and above the burner 100, and the fan 400 can be arranged above the heat exchanger 300 for sucking the flue gas during the combustion of the burner 100 to the casing 200 Smoke vent at the top.

It should be noted that, other components of the gas-fired water heater 1000 in the above-mentioned embodiment can be used in various technical solutions known to those of ordinary skill in the art now and in the future, and will not be described in detail here.

In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial The orientation or positional relationship indicated by , "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the indicated device. Or the elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level less than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described above. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in various instances for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and/or arrangements discussed.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art who is familiar with the technical field of the present invention can easily think of its various changes within the technical scope disclosed by the present invention. Or replacement, these should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (8)

1. A burner, comprising:

at least one fire grate;

the fire grate is arranged above the guide plate, the guide plate is provided with a plurality of guide holes, the guide holes penetrate through the guide plate in the thickness direction of the guide plate, and the guide holes are used for guiding air to the fire grate.

2. The burner of claim 1 wherein a plurality of said baffle holes are arrayed in said baffle plate.

3. The burner of claim 2, wherein the plurality of baffle holes comprises a plurality of first baffle holes, a plurality of second baffle holes and a plurality of third baffle holes arranged in a staggered pattern, wherein the second baffle holes have a diameter greater than the first baffle holes and less than the third baffle holes.

4. The burner of claim 3 wherein two sets of first baffle holes and one set of second baffle holes are disposed between two adjacent sets of third baffle holes, and wherein the set of second baffle holes is disposed between the two sets of first baffle holes.

5. The burner of claim 4 wherein the two sets of third baffle holes are located on both sides of the projection of the fire grate on the plane of the baffle plate, and the set of second baffle holes are located opposite the fire grate.

6. The burner of claim 1, further comprising:

the two side wind shields that set up relatively, two the side wind shield connect respectively in the left side edge and the right side edge of guide plate, the fire row is located two between the side wind shield.

7. The burner of claim 6, further comprising:

the front wind shield is connected to the front side edge of the guide plate and located on the front side of the fire grate.

8. A gas water heater, comprising:

a housing defining a heat exchange cavity therein;

the burner of any of claims 1-7, wherein the burner is located within the heat exchange chamber.

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