CN108006617A - Burner and there is its gas heater - Google Patents

Abstract

The invention discloses a kind of burner and there is its gas heater, the burner includes burning main body, and the burning main body includes：Upper tray for combustion；Lower tray for combustion, the lower tray for combustion is installed on the upper tray for combustion and below the upper tray for combustion, runner is limited between the upper tray for combustion and the lower tray for combustion and is equipped with the air inlet with the flow passage with the fire hole of the flow passage and the lower tray for combustion, one in the upper tray for combustion and the lower tray for combustion is equipped with the water draining beak being connected with another, has in the water draining beak and penetrates through the burning main body along the vertical direction and drainage channel that cross-sectional area is from top to bottom gradually reduced.Burner according to embodiments of the present invention has the advantages that easy to condensed water elimination, stable combustion condition, structural strength is high, internal gas flow is smooth.

Description

Burner and gas water heater having same

technical field

The invention relates to the technical field of electric appliance manufacturing, in particular to a burner and a gas water heater with the burner.

Background technique

In the volumetric gas water heaters in the related art, the burner such as the atmospheric burner is placed under the inner tank, and the high-temperature flue gas contacts the cold inner tank wall during the initial cold combustion, which is easy to generate condensed water, and the condensed water drips And accumulated on the burner, it is easy to cause the burner to go off fire and affect the combustion conditions. For this reason, some atmospheric burners are provided with drainage holes, but the setting of the drainage holes affects the structural strength of the burner and the flow of internal gas.

Contents of the invention

The present invention aims to solve one of the above-mentioned technical problems in the related art at least to a certain extent. Therefore, the present invention proposes a burner, which has the advantages of convenient discharge of condensed water, stable combustion conditions, high structural strength, and smooth internal gas flow.

The invention also proposes a gas water heater with the burner.

In order to achieve the above object, a burner is proposed according to an embodiment of the first aspect of the present invention, the burner includes: an upper combustion disc; a lower combustion disc, the lower combustion disc is installed on the upper combustion disc and located Below the upper combustion disc, a flow channel and a fire hole communicating with the flow channel are defined between the upper combustion disc and the lower combustion disc, and a fire hole communicating with the flow channel is provided on the lower combustion disc The air inlet, one of the upper combustion tray and the lower combustion tray is provided with a drain spout connected to the other, and the drain spout has a hole that runs through the combustion body in the up and down direction and has a cross-sectional area from top to bottom. Lower gradually decreasing drainage channel.

The burner according to the embodiment of the present invention has the advantages of convenient discharge of condensed water, stable combustion conditions, high structural strength, and smooth internal gas flow.

In addition, the burner according to the embodiment of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the drain spout is arranged on the upper combustion pan, and the lower end of the drain spout is provided with a hook edge hooked on the lower combustion pan.

According to an embodiment of the present invention, the portion of the upper combustion plate forming the upper edge of the fire hole is bent upward, and the portion of the lower combustion plate forming the lower edge of the fire hole is bent downward.

According to an embodiment of the present invention, the flow channel includes a mixing chamber and a diffuser chamber that communicate with each other, the air inlet communicates with the mixing chamber, and the fire hole communicates with the diffuser chamber.

According to an embodiment of the present invention, the upper combustion disc is provided with an outer raised portion corresponding to the position of the diffuser chamber, an inner raised portion corresponding to the position of the mixing chamber, and a The lower recess corresponding to the position of the junction of the mixing chamber, the drain nozzle is located on the lower recess.

According to an embodiment of the present invention, the upper combustion disc is provided with a downwardly recessed guide portion corresponding to the position of the air inlet.

According to an embodiment of the present invention, the lower combustion disc is provided with a shroud surrounding the air inlet.

According to an embodiment of the present invention, the air inlet is located at the center of the combustion body, and the flame holes are located at the outer periphery of the combustion body and are arranged along the circumference of the combustion body.

According to an embodiment of the present invention, there are multiple drain nozzles arranged at equal intervals along the circumference of the combustion body.

According to the embodiment of the second aspect of the present invention, a gas water heater is proposed, the gas water heater includes: an inner tank; a burner, the burner is the burner according to the embodiment of the first aspect of the present invention, the The burner is arranged under at least a part of the inner container.

The gas water heater according to the embodiment of the present invention has the advantages of reliable combustion and high structural strength by using the burner according to the embodiment of the first aspect of the present invention.

Description of drawings

Fig. 1 is a schematic structural view of a gas water heater according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a burner according to an embodiment of the present invention.

Fig. 3 is a top view of a burner according to an embodiment of the present invention.

Reference signs:

Gas water heater 1,

Inner tank 10, flue 11, burner 20, combustion main body 21,

Upper combustion plate 100, drain nozzle 110, drainage channel 111, hook edge 112, outer upper convex portion 120, inner upper convex portion 130, lower concave portion 140, guide portion 150,

Lower combustion disc 200 , flow channel 210 , mixing chamber 211 , diffuser chamber 212 , fire hole 220 , air inlet 230 , shroud 240 , outer lower convex part 250 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

A gas water heater 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 , a gas water heater 1 according to an embodiment of the present invention is a volumetric gas water heater and includes an inner tank 10 and a burner 20 , and the burner 20 may be an atmospheric burner.

The liner 10 has a flue 11 , for example, the flue 11 passes through the liner 10 in the vertical direction. The burner 20 is arranged under at least a part of the inner container 10, and the burner 20 is opposite to the flue 11 in the up-down direction, so as to facilitate smoke exhaust.

First, a burner 20 according to a specific embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1-3 , a burner 20 according to an embodiment of the present invention includes a combustion body 21 . The combustion body 21 includes an upper combustion disc 100 and a lower combustion disc 200 .

The lower combustion pan 200 is installed on the upper combustion pan 100 and the lower combustion pan 200 is located below the upper combustion pan 100 . For example, the upper combustion tray 100 and the lower combustion tray 200 can be molded respectively, and the upper combustion tray 100 and the lower combustion tray 200 can be installed together by welding or buckling. A flow channel 210 and a fire hole 220 communicating with the flow channel 210 are defined between the upper combustion disc 100 and the lower combustion disc 200. The lower combustion disc 200 is provided with an air inlet 230 communicating with the flow channel 210, and the gas is discharged from the air inlet. 230 enters the runner 210 and burns in the fire hole 220. One of the upper combustion tray 100 and the lower combustion tray 200 is provided with a drain nozzle 110, and the drain nozzle 110 is connected to the other of the upper combustion tray 100 and the lower combustion tray 200. There is a drainage channel 111 in the drain nozzle 110, and the drainage channel 111 The cross-sectional area of the drainage passage 111 is gradually reduced from top to bottom and penetrates through the combustion body 21 in the up and down direction.

According to the gas water heater 1 of the embodiment of the present invention, a drain nozzle 110 with a drain channel 111 is provided on one of the upper combustion tray 100 and the lower combustion tray 200, so that when the first cold combustion occurs, the high-temperature flue gas contacts the inner tank 10 The water vapor of the high-temperature flue gas is condensed to form condensed water. After the condensed water drips onto the burner 20, it can be discharged downward through the drainage channel 111 of the drain nozzle 110 to avoid condensed water Long-term accumulation causes the burner 20 to go off fire, eliminating the influence of condensed water on the combustion conditions. Moreover, the drain nozzle 110 is arranged on one of the upper combustion tray 100 and the lower combustion tray 200 and is connected to the other of the upper combustion tray 100 and the lower combustion tray 200, thereby improving the structural strength of the combustion body 21 and eliminating the need for drainage. Sets the effect on the strength of the structure. In addition, the cross-sectional area of the drainage channel 111 gradually decreases from top to bottom. On the one hand, it can guide the condensed water to quickly flow out of the drainage channel 111; Influence, to ensure the smooth flow of gas in the flow channel 210, so as to ensure reliable combustion.

The gas water heater 1 according to the embodiment of the present invention has the advantages of reliable combustion and high structural strength by using the burner 20 according to the above-mentioned embodiment of the present invention.

A burner 20 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1-3 , a burner 20 according to an embodiment of the present invention includes a combustion body 21 . The combustion body 21 includes an upper combustion disc 100 and a lower combustion disc 200 .

Specifically, as shown in Figures 2 and 3, the upper combustion disc 100 and the lower combustion disc 200 are disc-shaped, the air inlet 230 is located at the center of the lower combustion disc 200, and the fire holes 220 are multiple, and a plurality of The fire holes 220 are located at the outer periphery of the combustion body 21, and a plurality of fire holes 220 are arranged in a ring around the flow channel 210 along the circumference of the combustion body 21, that is, between the outer periphery of the upper combustion disk 100 and the outer periphery of the lower combustion disk 200. A plurality of fire holes 220 are defined between them.

Further, as shown in FIG. 2 , the lower combustion disc 200 is provided with a shroud 240 that surrounds the air inlet 230 and extends downward. The port 230 enters the flow channel 210 to prevent gas diffusion loss.

In some specific examples of the present invention, as shown in FIG. 2 , the drain nozzle 110 is arranged on the upper combustion plate 100 , for example, the drain nozzle 110 can be integrally formed with the upper combustion plate 100 , and the lower end of the drain nozzle 110 is provided with a hook edge 112 , The hook edge 112 can be formed by folding the lower end of the drain spout 110 outwards. The lower end of the drain spout 110 passes through the lower combustion tray 200 and the hook edge 112 is hooked on the lower combustion tray 200, thus the hook edge 112 can be used to connect the lower combustion tray 200. The disc 200 is further connected to the upper combustion disc 100 and the lower combustion disc 200 at a position other than the installation position of the upper combustion disc 100 and the lower combustion disc 200, thereby further improving the overall structural strength of the combustion body 21, and the processing and assembly are convenient and the structure High reliability.

In some specific embodiments of the present invention, as shown in FIG. 2 , the part of the upper edge forming the fire hole 220 of the upper combustion disc 100 is bent upward, and the part of the lower edge of the lower combustion disc 200 forming the fire hole 220 is downward. bend. In other words, the outer periphery of the upper combustion disk 100 is bent upward, and the outer periphery of the lower combustion disk 200 is curved downward. This can form a flame-stabilizing structure. When the fire hole 220 burns, the flame spreads outward at the fire hole 220, and fills up the part between the outer periphery of the upper combustion disk 100 and the outer periphery of the lower combustion disk 200, enlarging the flame. The root of the flame to form a stable combustion.

In some specific examples of the present invention, as shown in FIG. 2 , the flow channel 210 includes a mixing chamber 211 and a diffuser chamber 212 communicating with each other, the air inlet 230 communicates with the mixing chamber 211 and the fire hole 220 communicates with the diffuser chamber 212 . In other words, the mixing chamber 211 is located at the center of the combustion body 21 , the diffuser chamber 212 is arranged around the diffuser chamber 212 , and a plurality of fire holes 220 are arranged around the diffuser chamber 212 . The gas is ejected from the nozzle at a certain flow rate under a certain pressure, and the gas absorbs air once by its own energy. The gas and air enter the mixing chamber 211 from the air inlet 230 to mix, and the mixed gas enters the diffuser chamber 212 for pressurization. Finally burn at the fire hole 220.

In some specific examples of the present invention, as shown in FIG. 2 and FIG. 3 , the upper combustion disc 100 is provided with an outer upper protrusion 120 corresponding to the position of the diffuser chamber 212 and protruding upward, and the lower combustion disc 200 is provided with a The position of the pressure chamber 212 corresponds to the downwardly protruding outer lower convex portion 250 , and the outer upper convex portion 120 and the outer lower convex portion 250 respectively extend in a ring shape along the circumference of the combustion body 21 and jointly define the diffuser cavity 212 . The upper combustion disc 100 is also provided with an inner upper convex portion 130 corresponding to the position of the mixing chamber 211 and protruding upward. The central axes of the openings 230 are coincident, the inner upper convex part 130 constitutes the upper wall of the mixing chamber 211 , and the outer upper convex part 120 is arranged around the inner upper convex part 130 .

The upper combustion disc 100 is further provided with a lower recess 140 corresponding to the junction of the diffuser chamber 212 and the mixing chamber 211 and recessed downward. The lower recess 140 extends in a ring along the combustion body 21 and is located at Between the outer upper convex portion 120 and the inner upper convex portion 130 , the drain spout 110 is located on the lower concave portion 140 . Thus, the condensed water dripping on the upper combustion plate 100 can flow down the concave portion 140 under the guidance of the outer convex portion 120 and the inner convex portion 130, and be discharged from the drain nozzle 110 on the lower concave portion 140, so that it can be further drained The condensed water on the upper combustion pan 100 prevents the condensed water from accumulating on the burner 20 .

Optionally, the outer upper convex portion 120 and the inner upper convex portion 130 may respectively protrude upward in a substantially circular arc shape, while the lower concave portion 140 may be recessed downward in a substantially circular arc shape, and there is a circular arc transition between the three.

Further, as shown in FIG. 3 , in order to further improve the drainage effect, there are multiple drain nozzles 110 , and the plurality of drain nozzles 110 are arranged on the lower concave portion 140 at equal intervals along the circumferential direction of the combustion body 21 .

In some specific examples of the present invention, as shown in FIG. 2 and FIG. 3 , the upper combustion disc 100 is provided with a guide portion 150 corresponding to the position of the air inlet 230 and recessed downward. The guide portion 150 may be spherical and It is arranged at the center of the inner upper convex part 130 . After the combustion mixture enters the mixing chamber 211 from the air inlet 230 , it can change from a vertical flow direction to a horizontal flow direction under the guidance of the guide part 150 , thereby making the flow of the combustion mixture smoother and facilitating the mixing of gas and air.

Those skilled in the art need to understand that since the concave guide portion 150 is located at the center of the upper combustion pan 100, the condensed water generated on the wall surface of the flue 11 usually drops on the outer periphery of the upper combustion pan 100, that is, It will not drip on the center of the upper combustion plate 100, and the condensed water at the outer periphery of the upper combustion plate 100 will flow to the lower concave portion 140 under the guidance of the outer upper convex portion 120 and the inner upper convex portion 130, therefore, the guide portion 150 will not Condensation builds up.

According to the burner 20 of the embodiment of the present invention, the gas is ejected through the nozzle, enters the combustion body 21 from the air inlet 230 at the center of the lower combustion disc 200, enters the mixing chamber 211 through the guide part 150, and then enters the combustion chamber 212 through the diffuser chamber. The holes 220 are fired. When burning in a cold state for the first time, the high-temperature flue gas contacts the cold inner container 10 wall (i.e., the flue 11 wall), causing the water vapor of the high-temperature flue gas to be condensed and attached to the inner container 10 wall. More and more, and drip down, fall on the burner 20, and then flow to the ground through the drainage channel 111 of the drain nozzle 110, so as to avoid the influence of the condensed water on the combustion flame caused by long-term residence and accumulation. Moreover, when the flame burns through the flame hole 220 with a flame-stabilizing structure, the flame spreads outward at the flame hole 220 and fills the flame-stabilizing hole, enlarging the root of the flame and forming a stable combustion of the flame.

Other configurations and operations of the gas water heater 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable 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.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A burner, characterized in that it comprises a combustion body, and the combustion body comprises: upper combustion plate; A lower combustion disc, the lower combustion disc is installed on the upper combustion disc and located below the upper combustion disc, a flow channel is defined between the upper combustion disc and the lower combustion disc and communicates with the flow channel and the lower combustion disc is provided with an air inlet communicating with the flow channel, and one of the upper combustion disc and the lower combustion disc is provided with a drain nozzle connected to the other, and the There is a drainage channel inside the drain nozzle that runs through the combustion body in the up-down direction and whose cross-sectional area gradually decreases from top to bottom. 2. The burner according to claim 1, characterized in that, the drain nozzle is arranged on the upper combustion plate, and the lower end of the drain nozzle is provided with a hook edge hooked on the lower combustion plate. 3. The burner according to claim 1, characterized in that, the part of the upper edge of the upper combustion plate that forms the fire hole is bent upwards, and the lower edge of the lower combustion plate that forms the fire hole The part is bent downwards. 4. The burner according to claim 1, wherein the flow channel includes a mixing chamber and a diffuser chamber communicating with each other, the air inlet communicates with the mixing chamber, and the fire hole communicates with the The diffuser chamber is connected. 5. The burner according to claim 4, wherein the upper combustion disc is provided with an outer upper convex portion corresponding to the position of the diffuser chamber, an inner upper convex portion corresponding to the position of the mixing chamber, and A lower recess corresponding to the junction of the diffuser chamber and the mixing chamber, the drain nozzle is located on the lower recess. 6 . The burner according to claim 1 , wherein the upper combustion disc is provided with a downwardly recessed guide portion corresponding to the position of the air inlet. 7 . 7. The burner according to claim 1, characterized in that, the lower combustion disc is provided with a shroud surrounding the air inlet. 8. The burner according to any one of claims 1-7, wherein the air inlet is located at the center of the combustion body, the fire hole is located at the outer periphery of the combustion body and Arranged along the circumference of the combustion body. 9. The burner according to claim 8, characterized in that there are a plurality of drain nozzles arranged at equal intervals along the circumference of the combustion body. 10. A gas water heater, characterized in that it comprises: liner; A burner, the burner is the burner according to any one of claims 1-9, and the burner is arranged below at least a part of the inner container.