CN212565767U - Burner and gas water heater - Google Patents

Abstract

The utility model relates to a combustor and gas hot water system, combustor include fire lid, first water conservancy diversion spare and base. In the combustion process, the mixed airflow of the fuel gas and the air is introduced into the air inlet channel, so that the mixed airflow enters the first mixing cavity. The guide holes are arranged around the periphery of the air inlet channel at intervals, so that the mixed air flow is effectively prevented from directly flowing out of the guide holes, the retention time of the mixed air flow in the first mixing cavity is prolonged, and the gas and the air are fully mixed; the mixed airflow enters the second mixing cavity from the first mixing cavity through the flow guide holes, and the flow path of the mixed airflow in the combustor is firstly diffused from the middle to the periphery because the flow guide holes are arranged around the periphery of the fire hole; and the mixed gas flow is converged from the periphery to the middle and finally flows out from the fire holes, so that the flowing range of the mixed gas flow in the burner is effectively expanded, the mixed gas flow is conveniently and uniformly distributed in the fire cover, and the burner is enabled to stably burn.

Description

Burner and gas water heater

Technical Field

The utility model relates to the technical field of household appliances, especially relate to combustor and gas hot water system.

Background

The combustor is a device for organizing gas and air mixed gas to burn, and can be divided into a full premix combustor and an atmospheric combustor according to different gas mixing forms. Wherein, the full premix burner has a cylindrical type, a plate type or a net type. However, the traditional burner is limited by design factors such as structure, use environment and cost, and the problem of uneven distribution of mixed gas combustion due to uneven mixing of gas and air is easily caused, so that the combustion stability of the burner is affected, and the combustion characteristics and the use experience of a user are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a combustor, its even mixture of gas and air can be effectively, the evenly distributed of air current has also been guaranteed simultaneously, and then makes the combustor stabilize the burning.

The utility model provides a second technical problem provide a gas hot water system, its can be effectively gas and the even mixture of air, also guaranteed mixed gas flow's evenly distributed simultaneously, and then make the combustor stable combustion.

The first technical problem is solved by the following technical scheme:

a burner, the burner comprising: the air inlet channel is arranged on the base; the fire cover is arranged opposite to the base, and fire holes are formed in the fire cover; first water conservancy diversion spare, first water conservancy diversion spare sets up the base with between the fire lid, the base with be formed with first hybrid chamber between the first water conservancy diversion spare, fire lid with be formed with the second hybrid chamber between the first water conservancy diversion spare, be equipped with the water conservancy diversion hole on the first water conservancy diversion spare, at least two the water conservancy diversion hole centers on inlet channel's peripheral interval sets up, and at least two the water conservancy diversion hole centers on the peripheral setting in fire hole, inlet channel first hybrid chamber the water conservancy diversion hole the second hybrid chamber with the fire hole is in the same order and is linked together.

The combustor, compare produced beneficial effect with the background art: in the combustion process, the mixed airflow of the fuel gas and the air is introduced into the air inlet channel, so that the mixed airflow enters the first mixing cavity. The guide holes are arranged around the periphery of the air inlet channel at intervals, so that the mixed air flow is effectively prevented from directly flowing out of the guide holes, the retention time of the mixed air flow in the first mixing cavity is prolonged, and the gas and the air are fully mixed; the mixed airflow enters the second mixing cavity from the first mixing cavity through the flow guide holes, and the flow path of the mixed airflow in the combustor is firstly diffused from the middle to the periphery because the flow guide holes are arranged around the periphery of the fire hole; and the mixed gas flow is converged from the periphery to the middle and finally flows out from the fire holes, so that the flowing range of the mixed gas flow in the burner is effectively expanded, the mixed gas flow is conveniently and uniformly distributed in the fire cover, and the burner is enabled to stably burn.

In one embodiment, a first buffer groove is arranged on one side surface of the base facing the first flow guide part, the first buffer groove is arranged around the periphery of the air inlet channel, and the first buffer groove and the flow guide hole are distributed oppositely.

In one embodiment, the burner further comprises at least one second flow guide part, the second flow guide part is arranged between the first flow guide part and the fire cover, the second flow guide part divides the second mixing cavity into a first split mixing cavity positioned on one side of the fire cover and a second split mixing cavity positioned on one side of the first flow guide part, the second flow guide part is provided with at least two first flow equalizing holes communicated with the first split mixing cavity and the second split mixing cavity, and the first flow equalizing holes are opposite to the fire holes.

In one embodiment, the second split mixing chamber decreases from the periphery to the middle; on the second flow guide part, the distribution density of the first flow equalizing holes on the second flow guide part is reduced from the middle part to the periphery.

In one embodiment, the flame stabilizing holes are further formed in the flame cover, at least two flame stabilizing holes are arranged around the periphery of the flame holes, the height of the first flow equalizing hole relative to the base is higher than that of the flame stabilizing holes relative to the base, the second flow guide piece is further provided with second flow equalizing holes communicated with the first component mixing cavity and the second component mixing cavity, and at least two second flow equalizing holes are arranged around the periphery of the flame stabilizing holes or are arranged relative to the flame stabilizing holes.

In one embodiment, a second buffer groove is arranged on one side surface of the second flow guide piece facing the first flow guide piece, the second buffer groove is arranged around the periphery of the first flow equalizing hole, and the second buffer groove is communicated with the second flow equalizing hole.

In one embodiment, the combustor further comprises a first seal disposed between the first and second flow guides.

In one embodiment, the burner further comprises a second seal disposed between the first baffle and the base.

In one embodiment, the fire cover is provided with a partial pressure part, and at least two fire holes are arranged around the periphery of the partial pressure part at intervals.

In one embodiment, the burner further comprises an ignition needle and a sensing needle which are both arranged on the base, one end of the ignition needle and one end of the sensing needle are both positioned on one side of the fire cover, which faces away from the first flow guide piece, and one end of the ignition needle and one end of the sensing needle are both arranged opposite to the fire hole.

In one embodiment, the first flow guiding element comprises a first flow guiding part and a first surrounding edge arranged along the edge of the first flow guiding part, the flow guiding hole is arranged on the first surrounding edge, a flow guiding curved surface is arranged on the first flow guiding part, and the flow guiding curved surface is arranged opposite to the air inlet channel.

In one embodiment, the second flow guiding element is provided with a first positioning portion, and the fire cover is provided with a second positioning portion matched with the first positioning portion in a positioning manner.

The second technical problem is solved by the following technical solutions:

the utility model provides a gas hot water system, includes fan, heat exchanger and above arbitrary one the combustor, the fan with inlet channel intercommunication, the heat exchanger is installed on the base.

Gas hot water system, compare produced beneficial effect with the background art: by adopting the combustor, in the combustion process, the mixed airflow of the gas and the air is introduced into the air inlet channel, so that the mixed airflow enters the first mixing cavity. The guide holes are arranged around the periphery of the air inlet channel at intervals, so that the mixed air flow is effectively prevented from directly flowing out of the guide holes, the retention time of the mixed air flow in the first mixing cavity is prolonged, and the gas and the air are fully mixed; the mixed airflow enters the second mixing cavity from the first mixing cavity through the flow guide holes, and the flow path of the mixed airflow in the combustor is firstly diffused from the middle to the periphery because the flow guide holes are arranged around the periphery of the fire hole; and the mixed gas flow is converged from the periphery to the middle and finally flows out from the fire holes, so that the flowing range of the mixed gas flow in the burner is effectively expanded, the mixed gas flow is conveniently and uniformly distributed in the fire cover, and the burner is enabled to stably burn.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a burner configuration according to an embodiment;

FIG. 2 is a sectional view of a burner configuration according to an embodiment;

FIG. 3 is an exploded view of the burner configuration in one embodiment;

FIG. 4 is a schematic view of a base structure according to an embodiment;

FIG. 5 is a schematic view of a gas-fired water heater according to an embodiment;

reference numerals:

100. a burner; 110. a base; 111. an air intake passage; 112. a first buffer tank; 113. mounting holes; 114. an installation port; 120. a fire cover; 121. fire holes; 122. a partial pressure part; 123. a second positioning portion; 124. a flame stabilizing hole; 125. a connecting portion; 130. a first flow guide member; 131. a flow guide hole; 132. a first flow guide part; 133. a first surrounding edge; 134. a flow guiding curved surface; 140. a second flow guide member; 141. a second flow guide part; 142. a transition section; 1421. an installation part; 143. a second surrounding edge; 144. a first flow equalizing hole; 145. a second flow equalizing hole; 146. a second buffer tank; 147. a first positioning portion; 150. a first seal member; 151. a second seal member; 152. a notch; 160. a first mixing chamber; 170. a second mixing chamber; 171. a first split mixing chamber; 172. a second split mixing chamber; 180. an ignition needle; 181. an induction needle; 190. a fixing member; 200. a fan; 210. a mixed gas inlet; 300. and (4) connecting the pipes.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are 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 invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1 to 3, a burner 100 includes a base 110, a fire cover 120 and a first flow guiding element 130. The base 110 is provided with an air inlet passage 111. The fire cover 120 is disposed opposite to the base 110, and fire holes 121 are formed in the fire cover 120. The first flow guide member 130 is arranged between the base 110 and the fire cover 120, a first mixing cavity 160 is formed between the base 110 and the first flow guide member 130, a second mixing cavity 170 is formed between the fire cover 120 and the first flow guide member 130, flow guide holes 131 are formed in the first flow guide member 130, at least two flow guide holes 131 are arranged at intervals around the periphery of the air inlet channel 111, at least two flow guide holes 131 are arranged around the periphery of the fire hole 121, and the air inlet channel 111, the first mixing cavity 160, the flow guide holes 131, the second mixing cavity 170 and the fire hole 121 are sequentially communicated.

In the above-mentioned burner 100, during the combustion process, the mixed gas flow of the gas and the air is introduced into the air inlet channel 111, so that the mixed gas flow enters the first mixing chamber 160. The diversion holes 131 are arranged around the periphery of the air inlet channel 111 at intervals, so that the mixed air flow is effectively prevented from directly flowing out of the diversion holes 131, the retention time of the mixed air flow in the first mixing cavity 160 is prolonged, and the gas and the air are fully mixed; the mixed air flow enters the second mixing chamber 170 from the first mixing chamber 160 through the flow guide holes 131, and the flow guide holes 131 are also arranged around the periphery of the fire holes 121, so that the flow path of the mixed air flow in the burner 100 is firstly diffused from the middle to the periphery; and then the mixed gas flows from the periphery to the middle and finally flows out from the fire holes 121, so that the flowing range of the mixed gas flow in the burner 100 is effectively expanded, the mixed gas flow is conveniently and uniformly distributed in the fire cover 120, and the burner 100 can stably burn.

It should be noted that the first mixing chamber 160 is formed between the base 110 and the first diversion element 130, and can be understood as including: the base 110 and the first diversion member 130 directly enclose to form the first mixing chamber 160, or the base 110 and the first diversion member 130 enclose to form the first mixing chamber 160 through an intermediate member. Similarly, a second mixing chamber 170 is formed between the fire cover 120 and the first baffle 130, and may be understood to include: the fire lid 120 and the first guide member 130 directly enclose to form the second mixing chamber 170, or the fire lid 120 and the first guide member 130 enclose to form the second mixing chamber 170 through an intermediate member.

Specifically, referring to fig. 1, at least two guide holes 131 are disposed on the first guide member 130 at equal intervals around the periphery of the air inlet passage 111, so that the mixture flow is further uniformly dispersed.

It should be noted that the diversion hole 131 around the periphery of the air intake passage 111 is understood as: the deflector holes 131 are provided beside the intake passage 111, and the deflector holes 131 are distributed along the circumferential direction of the intake passage 111.

Further, referring to fig. 2 and 4, a first buffer slot 112 is disposed on a side surface of the base 110 facing the first flow guiding element 130, the first buffer slot 112 is disposed around the periphery of the air inlet channel 111, and the first buffer slot 112 and the flow guiding hole 131 are distributed opposite to each other. When the mixed airflow enters the first mixing chamber 160 and diffuses around, the first baffle 112 is opened on the first flow guiding member 130, so that the diffused mixed airflow enters the first baffle 112, the flow rate of the mixed airflow is relieved, the impact of the mixed airflow to the surrounding is reduced, and the airflow in the first baffle 112 tends to be stable. Since the first buffer slot 112 and the diversion hole 131 are distributed relatively, the air flow in the first buffer slot 112 smoothly enters the diversion hole 131 under the action of air pressure, so that the stable flow of the mixed air flow in the combustor 100 is ensured, and the combustion stability of the combustor 100 is improved.

It should be noted that, the first buffer slot 112 and the diversion hole 131 are respectively understood as: the notch of the first buffer slot 112 is disposed toward the diversion hole 131, that is, after the first buffer slot 112 is filled with the mixed air flow, a part of the mixed air flow can directly flow into the diversion hole 131 after flowing out from the notch of the first buffer slot 112.

In one embodiment, referring to fig. 2, the burner 100 further includes at least one second flow guiding member 140, the second flow guiding member 140 is disposed between the first flow guiding member 130 and the fire cover 120, the second flow guiding member 140 divides the second mixing cavity 170 into a first split mixing cavity 171 located at one side of the fire cover 120 and a second split mixing cavity 172 located at one side of the first flow guiding member 130, at least two first flow equalizing holes 144 are disposed on the second flow guiding member 140 and communicated with the first split mixing cavity 171 and the second split mixing cavity 172, and the first flow equalizing holes 144 are opposite to the fire holes 121. If the distance between the first flow guiding member 130 and the fire cover 120 is relatively close to each other, the temperature of the first flow guiding member 130 is too high, and thus the temperature of the gas flowing into the gas inlet passage 111 is too high, so that a certain distance is required between the first flow guiding member 130 and the fire cover 120 to prevent the temperature of the gas flowing into the gas inlet passage 111 from being too high, and the distance can cause the imbalance of the gas pressure in the second mixing chamber 170, which leads to unstable combustion and backfire around. For this, the burner 100 of the present embodiment has a second baffle 140 in addition to the first baffle 130, and when the mixed air flows into the first mixing chamber 160, the mixed air flows into the second mixing chamber 172 through the baffle hole 131; within the second split mixing chamber 172, the mixed gas streams are remixed; the air current after the mixture passes through first homocline hole 144 homodisperse to first components of a whole that can function independently mixing chamber 171 in for the air current distribution that gets into in the fire lid 120 is more even, guarantees that the flame on the combustor 100 is more stable, effectively avoids on the fire lid 120 because of the uneven phenomenon of tempering takes place for the periphery that causes of atmospheric pressure distribution. Therefore, the second flow guide element 140 is arranged to effectively prevent the temperature of the first flow guide element 130 from being too high, and to equalize the air pressure in the second mixing chamber 170.

Specifically, the base 110, the first flow guiding member 130, the second flow guiding member 140 and the fire cover 120 are coaxially stacked.

It should be noted that the first flow-equalizing holes 144 of the second flow-guiding member 140 have various distribution manners, for example, the first flow-equalizing holes 144 are distributed in a circular ring from inside to outside; or, the inner part and the outer part are distributed in a square shape; or, the distribution may be in a matrix form.

Alternatively, the number of the second flow guide members 140 may be one or more. When the second flow guide member 140 is one, the first flow guide member 130, the second flow guide member 140 and the fire cover 120 are sequentially stacked together; when the number of the second flow guiding members 140 is plural, the second flow guiding members 140 and the second flow guiding members 140 are stacked together in sequence, the second flow guiding member 140 near the first flow guiding member 130 is stacked on the first flow guiding member 130, and the second flow guiding member 140 near the fire lid 120 is connected with the fire lid 120. Of course, when there are a plurality of first flow-guiding members 130, the first flow-guiding members 130 and the second flow-guiding members 140 can be alternately stacked. In addition, when at least two second flow guiding members 140 are sequentially arranged in an interval stacking manner, the first flow equalizing holes 144 of one second flow guiding member 140 and the first flow equalizing holes 144 of the other second flow guiding member 140 are distributed in a staggered manner between the two adjacent second flow guiding members 140, so that the mixed air flow is ensured to be fully mixed in the second mixing cavity 170.

It should be noted that, between two adjacent second flow guiding members 140, the first flow equalizing hole 144 and the first flow equalizing hole 144 are distributed in a staggered manner, which is to be understood as follows: when the first flow equalizing hole 144 is disposed at the middle of the second flow guide 140, another first flow equalizing hole 144 is disposed at the edge of the second flow guide 140.

Further, referring to fig. 2 and 3, the second mixing chamber 172 decreases from the periphery to the middle, and the decrease may be gradual, or may include decreasing a section of the middle, and then decreasing the section of the middle; on the second flow guiding element 140, the distribution density of the first flow equalizing holes 144 decreases from the middle to the periphery, and similarly, the decrease may be gradual, or may include a first decrease section, a middle constant section, and a second decrease section. It can be seen that the second fluid mixing chamber 172 decreases from the periphery to the middle, which advantageously increases the velocity of the air flow in the middle between the first baffle 130 and the second baffle 140. Meanwhile, the distribution density of the first flow equalizing holes 144 on the second flow guiding member 140 is decreased from the middle to the periphery, so that the air flow velocity flowing out of the middle of the second flow guiding member 140 is correspondingly decreased, and most of the air flow is prevented from flowing out of the middle of the second flow guiding member 140 in a centralized manner, and thus the distribution of the sizes of the matching spaces is matched, so that the distribution of the air flow flowing out of the second flow guiding member 140 is more balanced, and the distribution uniformity of the air flow on the fire cover 120 is further improved.

Note that the distribution density of the first equalizing holes 144 means: the number of first equalizing holes 144 per unit area.

Further, referring to fig. 2, the flame stabilizing hole 124 is further formed on the fire cover 120. At least two flame stabilizing holes 124 are arranged around the periphery of the flame hole 121, and the heights of the first flow equalizing holes 144 relative to the base 110 are all higher than the heights of the flame stabilizing holes 124 relative to the base 110, that is, the outermost first flow equalizing holes 144 on the second flow guide 140 are all higher than the flame stabilizing holes 124 on the flame cover 120, when the airflow flows out from the outermost first flow equalizing holes 144, the airflow cannot directly flow out from the flame stabilizing holes 124 on the outermost layer of the flame cover 120, and the airflow on the second flow guide 140 is effectively prevented from directly flowing out from the edge of the flame cover 120. Meanwhile, the second baffle 140 is further provided with second flow equalizing holes 145 communicating with the first and second split mixing chambers 171 and 172, and at least two second flow equalizing holes 145 are arranged around the periphery of the flame stabilizing hole 124. Therefore, the second flow equalizing holes 145 are distributed relatively close to the edge of the second baffle 140. When the mixed gas flow enters the split mixing chamber 171, the mixed gas flow not only flows out of the first flow equalizing hole 144, but also flows into the fire lid 120 from the second flow equalizing hole 145, effectively expanding the dispersion range of the mixed gas flow in the second mixing chamber 170. In addition, the second flow equalizing hole 145 provides a mixed gas flow to the flame stabilizing holes 124, and provides gas to the edge of the flame cap 120, thereby ensuring stable operation of the entire burner 100.

It should be noted that the outermost first flow equalizing holes 144 of the second flow guiding member 140 are understood that a plurality of first flow equalizing holes 144 are arranged at intervals on the second flow guiding member 140 to form a plurality of layers of mutually surrounding flow equalizing holes, and the layer of flow equalizing holes closest to the edge of the second flow guiding member 140 is the outermost first flow equalizing holes 144 of the second flow guiding member 140. The flow equalizing ring can be a circular ring, an elliptical ring, a square ring, a pentagonal ring and the like, and even can be an irregular ring. Similarly, the outermost flame-stabilizing hole 124 of the flame cover 120 is understood to mean that a plurality of flame-stabilizing holes 124 are arranged on the flame cover 120 at intervals to form a plurality of mutually surrounding flame-stabilizing hole 124 rings, and the flame-stabilizing hole 124 ring closest to the edge of the flame cover 120 is the outermost flame-stabilizing hole 1 of the flame cover 12024. In addition, in order to better understand the height of the first flow equalizing hole 144 relative to the base 110 and the height of the flame stabilizing hole 124 relative to the base 110, taking fig. 2 as an example, the height of the first flow equalizing hole 144 relative to the base 110 may be h in fig. 2₁Represents a height; the height of the flame stabilizing holes 124 relative to the base 110 can be h in FIG. 2₂Indicating the height.

In one embodiment, referring to fig. 2, a second buffer groove 146 is disposed on a side of the second flow guiding member 140 facing the first flow guiding member 130, the second buffer groove 146 is disposed around the periphery of the first flow equalizing hole 144, and the second buffer groove 146 is communicated with the second flow equalizing hole 145, such that the flow velocity of the mixed gas flow is reduced by the second buffer groove 146, a portion of the mixed gas flow is retained in the second buffer groove 146 and flows out from the second flow equalizing hole 145, and the mixed gas flow is prevented from directly flowing to the first flow equalizing hole 144 in a concentrated manner, so that the distribution of the mixed gas flow is more uniform.

Specifically, the second buffer groove 146 is formed by the second baffle 140 being recessed in a direction toward the fire cover 120.

Further, referring to fig. 2, the second flow guiding element 140 includes a second flow guiding portion 141, a transition portion 142, and a second peripheral edge 143, the second flow guiding portion 141 is connected to the second peripheral edge 143 through the transition portion 142, and the second peripheral edge 143 is disposed along a periphery of the second flow guiding portion 141. The first flow equalizing hole 144 is disposed on the second guide portion 141, the second flow equalizing hole 145 is disposed on the transition portion 142, and the second buffer groove 146 is also disposed on a side of the transition portion 142 facing the first guide 130.

Alternatively, the shape of the second flow guide portion 141 may be various, for example, the second flow guide portion 141 has a disk-like or hemispherical structure.

Further, referring to fig. 2, an installation part 1421 is disposed between the second flow guiding part 141 and the transition part 142, the installation part 1421 is disposed obliquely relative to the transition part 142, and an edge of the fire cover 120 is attached to the installation part 1421, so that the fire cover 120 is conveniently installed on the second flow guiding element 140.

Specifically, the edge of the fire cover 120 is a connection portion 125 recessed toward the second baffle 140, and the edge of the connection portion 125 is connected to the mounting portion 1421. The structure can buffer the deformation of the fire cover 120 in work, so that the fire cover 120 is not easy to damage.

In one embodiment, referring to fig. 3, the burner 100 further includes a first sealing member 150, and the first sealing member 150 is disposed between the first flow guiding member 130 and the second flow guiding member 140, so that the first sealing member 150 improves the sealing property between the first flow guiding member 130 and the second flow guiding member 140 and prevents the mixed gas from leaking between the first flow guiding member 130 and the second flow guiding member 140.

Alternatively, the first seal 150 may be a silicone rubber seal, a fluoro-rubber seal, a teflon rubber seal, or the like.

Specifically, referring to fig. 3, the first flow guiding element 130 includes a first flow guiding portion 132 and a first surrounding edge 133, the second flow guiding element 140 includes a second flow guiding portion 141, a transition portion 142 and a second surrounding edge 143, and the first surrounding edge 133, the first sealing element 150 and the second surrounding edge 143 are sequentially press-fit connected.

In one embodiment, referring to FIG. 3, the combustor 100 includes a second seal 151. The second sealing element 151 is disposed between the first flow guide element 130 and the base 110, so that the sealing performance between the first flow guide element 130 and the base 110 is effectively improved by the second sealing element 151, and the mixed air flow is prevented from leaking from between the first flow guide element 130 and the base 110.

Alternatively, the second sealing member 151 may be a silicon rubber sealing ring, a fluorine rubber sealing ring, a teflon rubber sealing ring, or the like.

Further, referring to fig. 2, the base 110, the second sealing element 151, the first guide member 130, the first sealing element 150 and the second guide member 140 are all connected by a fixing member 190, so that the overall structure of the combustor 100 is more stable.

Alternatively, the fixing member 190 may be a bolt, a screw, a pin, a rivet, a snap structure, or the like.

In one embodiment, referring to fig. 1, a press portion 122 is disposed on the fire cover 120. At least two fire holes 121 are spaced around the periphery of the pressure dividing portion 122, so that the middle portion of the fire cover 120 of the present embodiment is the pressure dividing portion 122, i.e. the non-venting area, and the periphery of the pressure dividing portion 122 is the venting area. So, distribute fire hole 121 around partial pressure portion 122 for the air current mixture in the second mixing chamber 170 is to diffusion all around under partial pressure portion 122's effect, and flow out from peripheral fire hole 121, thereby makes the air current mixture pressure distribution on fire lid 120 more even, avoids the air current mixture to concentrate on fire lid 120's top and causes the hot strength too big.

Alternatively, the partial pressure part 122 may have a planar structure, an arc structure, an inverted cone structure, an inverted trapezoid structure, or the like. Meanwhile, a side of the partial pressure portion 122 facing the second mixing chamber 170 may be a horizontal plane, an arc plane, an inclined plane, or the like.

It should be noted that the fire lid 120 of the present embodiment has various shapes, for example, the fire lid 120 is shaped like a disk, a hemisphere, a circular truncated cone, or the like. Meanwhile, the fire cover 120 may be provided with an annular rib or a pressed rib.

In one embodiment, referring to fig. 1, the burner 100 further includes an ignition needle 180 and a sensing needle 181 both mounted on the base 110. Ignition needle 180 one end and response needle 181 one end all are located fire lid 120 one side of first water conservancy diversion piece 130 dorsad, and ignition needle 180 one end all sets up with fire hole 121 with response needle 181 one end is relative, so, igniteing through ignition needle 180 to fire lid 120. Meanwhile, the flame state on the fire cover 120 is sensed through the sensing needle 181, and the combustion condition of the burner 100 is fed back in time.

Specifically, referring to fig. 3, the first fluid guiding element 130, the second fluid guiding element 140, the first sealing element 150 and the second sealing element 152 are all provided with a notch 152, and the ignition needle 180 and the sensing needle 181 both penetrate through the notch 152 and act on the fire cover 120. Meanwhile, the base 110 is provided with a mounting port 114, and the ignition needle 180 and the sensing needle 181 are inserted into the mounting port 114.

In one embodiment, the second fluid guiding member 140 is provided with a first positioning portion 147. The second positioning portion 123 is disposed on the fire cover 120 and is in positioning fit with the first positioning portion 147, so that the fire cover 120 is stabilized on the second guiding member 140 by the first positioning portion 147 and the second positioning portion 123, and the structure of the burner 100 is stabilized.

Alternatively, the first positioning portions 147 are convex portions, and the second positioning portions 123 are concave portions; alternatively, the first positioning portions 147 may be concave portions and the second positioning portions 123 may be convex portions.

In one embodiment, the first flow guide 130 includes a first flow guide portion 132 and a first peripheral edge 133 disposed along an edge of the first flow guide portion 132. The diversion hole 131 is disposed on the first surrounding edge 133. The first flow guiding portion 132 is provided with a flow guiding curved surface 134, and the flow guiding curved surface 134 is disposed opposite to the air inlet passage 111. When the mixed airflow enters the first mixing cavity 160, the mixed airflow impacts the flow guiding curved surface 134; then, the mixed air flows along the guide curved surface 134 to the guide holes 131 on the periphery, so that the mixed air flows out smoothly from the guide holes 131.

Specifically, referring to fig. 2, the guiding curved surface 134 is an inward concave curved surface, and can also be understood as a disk-shaped surface or a portion of a spherical surface.

In one embodiment, referring to fig. 5, a gas-fired water heating apparatus includes a fan 200, a heat exchanger and a burner 100 in any one of the above embodiments. The blower 200 communicates with the intake passage 111. The heat exchanger is mounted on the base 110.

In the above gas water heater, the burner 100 is adopted, and during the combustion process, the mixed gas flow of gas and air is introduced into the air inlet channel 111, so that the mixed gas flow enters the first mixing chamber 160. The diversion holes 131 are arranged around the periphery of the air inlet channel 111 at intervals, so that the mixed air flow is effectively prevented from directly flowing out of the diversion holes 131, the retention time of the mixed air flow in the first mixing cavity 160 is prolonged, and the gas and the air are fully mixed; the mixed air flow enters the second mixing chamber 170 from the first mixing chamber 160 through the flow guide holes 131, and the flow guide holes 131 are also arranged around the periphery of the fire holes 121, so that the flow path of the mixed air flow in the burner 100 is firstly diffused from the middle to the periphery; and then the mixed gas flow is converged from the periphery to the middle and finally flows out from the fire holes 121, so that the flowing range of the mixed gas flow in the burner 100 is effectively expanded, the mixed gas flow is conveniently and uniformly distributed in the fire cover 120, and the burner 100 is enabled to stably burn.

Alternatively, the gas water heater can be a gas water heater, a gas heating water heater, or the like. Meanwhile, the heat exchanger may be a tube type heat exchanger or a plate type heat exchanger.

Further, referring to fig. 5, the gas water heater further includes a connection pipe 300, and the blower 200 is communicated with the air inlet passage 111 through the connection pipe 300, so that the connection between the blower 200 and the burner 100 is facilitated through the connection pipe 300.

In one embodiment, referring to fig. 5, the base 110 is provided with a mounting hole 113, and the heat exchanger is mounted on the base 110 by inserting the fixing member 190 into the mounting hole 113. Wherein, the fixing member 190 may be a bolt, a screw, a pin, etc.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "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 convenience of description and simplicity of 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, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A burner (100), characterized in that the burner (100) comprises:

the air conditioner comprises a base (110), wherein an air inlet channel (111) is arranged on the base (110);

the fire cover (120), the fire cover (120) is arranged opposite to the base (110), and fire holes (121) are formed in the fire cover (120);

first water conservancy diversion spare (130), first water conservancy diversion spare (130) set up base (110) with between fire lid (120), base (110) with be formed with first hybrid chamber (160) between first water conservancy diversion spare (130), fire lid (120) with be formed with second hybrid chamber (170) between first water conservancy diversion spare (130), be equipped with water conservancy diversion hole (131) on first water conservancy diversion spare (130), at least two water conservancy diversion hole (131) center on the peripheral interval setting of inlet channel (111), and at least two water conservancy diversion hole (131) center on the peripheral setting of fire hole (121), inlet channel (111), first hybrid chamber (160), water conservancy diversion hole (131), second hybrid chamber (170) and fire hole (121) communicate in the same order.

2. The burner (100) of claim 1, wherein a first buffer groove (112) is provided on a side of the base (110) facing the first deflector (130), the first buffer groove (112) is disposed around a periphery of the air inlet passage (111), and the first buffer groove (112) is distributed opposite to the deflector hole (131).

3. The burner (100) of claim 1, wherein the burner (100) further comprises at least one second flow guide member (140), the second flow guide member (140) is disposed between the first flow guide member (130) and the fire cover (120), the second flow guide member (140) divides the second mixing chamber (170) into a first split mixing chamber (171) on one side of the fire cover (120) and a second split mixing chamber (172) on one side of the first flow guide member (130), the second flow guide member (140) is provided with at least two first flow equalizing holes (144) communicating with the first split mixing chamber (171) and the second split mixing chamber (172), and the first flow equalizing holes (144) are opposite to the fire holes (121).

4. The burner (100) of claim 3, wherein the second split mixing chamber (172) decreases from the periphery to the middle, and the distribution density of the first flow equalizing holes (144) on the second flow guide (140) decreases from the middle to the periphery on the second flow guide (140).

5. The burner (100) of claim 3, wherein flame stabilizing holes (124) are further formed in the flame cover (120), at least two of the flame stabilizing holes (124) are formed around the periphery of the flame holes (121), the height of the first flow equalizing hole (144) relative to the base (110) is higher than that of the flame stabilizing holes (124) relative to the base (110), a second flow equalizing hole (145) communicated with the first split mixing cavity (171) and the second split mixing cavity (172) is further formed in the second flow guide member (140), and at least two of the second flow equalizing holes (145) are formed around the periphery of the flame stabilizing holes (124) or are opposite to the flame stabilizing holes (124).

6. The burner (100) of claim 5, wherein a second baffle groove (146) is provided on a side of the second baffle member (140) facing the first baffle member (130), the second baffle groove (146) is provided around a periphery of the first flow equalizing hole (144), and the second baffle groove (146) is communicated with the second flow equalizing hole (145).

7. The combustor (100) of claim 3, wherein the combustor (100) further comprises a first seal (150), the first seal (150) disposed between the first flow guide (130) and the second flow guide (140).

8. The burner (100) of any of claims 1 to 7, further comprising a second seal (151), the second seal (151) being disposed between the first baffle (130) and the base (110).

9. The burner (100) according to any one of claims 1 to 7, wherein the fire cover (120) is provided with a partial pressure portion (122), and at least two fire holes (121) are arranged around the periphery of the partial pressure portion (122) at intervals; and/or the presence of a gas in the gas,

the combustor (100) further comprises an ignition needle (180) and an induction needle (181) which are both arranged on the base (110), one end of the ignition needle (180) and one end of the induction needle (181) are both positioned on one side, back to the first flow guide piece (130), of the fire cover (120), and one end of the ignition needle (180) and one end of the induction needle (181) are both arranged opposite to the fire hole (121); and/or the presence of a gas in the gas,

first water conservancy diversion spare (130) include first water conservancy diversion portion (132) and follow first surrounding edge (133) that first water conservancy diversion portion (132) edge set up, water conservancy diversion hole (131) set up in on first surrounding edge (133), be equipped with water conservancy diversion curved surface (134) on first water conservancy diversion portion (132), water conservancy diversion curved surface (134) with inlet channel (111) set up relatively.

10. A gas-fired water heating apparatus, comprising a fan (200), a heat exchanger and the burner (100) of any one of claims 1 to 9, wherein the fan (200) is in communication with the air inlet passage (111), and the heat exchanger is mounted on the base (110).

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