A burner with a gas combing device

Abstract

The present invention discloses a burner with a gas combing device, comprising a burner body and a gas combing device, wherein the burner body is provided with a gas mixing chamber and at least two gas channels, and the gas combing device comprises a blocking structure arranged in the gas mixing chamber and located above the outlet of the gas channel, wherein the blocking structure is provided with a gas combing channel connected to the gas channel, or the blocking structure, the bottom of the gas mixing chamber and the annular wall jointly define a gas combing channel connected to the gas channel, and an air outlet is provided on the left and / or right side of the gas combing channel, and the air outlet is connected to the gas mixing chamber. The present invention arranges a blocking structure so that the flow velocity of the gas is reduced and the flow direction is changed when the gas flows into the gas mixing chamber, thereby combing the flow direction and flow velocity of the gas flowing into the gas mixing chamber, making the combustion more uniform and stable, and at the same time effectively suppressing the flameout noise.

Description

Technical Field

[0001] The invention relates to the technical field of stoves, and in particular to a burner head for a stove. Background Art

[0002] The combustion system of a household gas stove is mainly composed of a burner and a fire cover. The gas premixed in the burner cavity directly reaches the fire cover through the burner gas distribution channel and burns through the fire holes. However, the gas speed from the burner gas distribution channel to each position of the fire cover is different in the existing burner, which will lead to inconsistent flame states during combustion, affecting the combustion effect and combustion performance.

[0003] In addition, when the burner performs the flameout operation, especially the outer flame cover, it is generally not the entire outer flame cover that is extinguished at the same time, but a part of it is extinguished first, and then the whole flame is extinguished in a short time due to the complete cutting off of the gas. After the outer flame cover is partially extinguished, the cavity of the local fire cover forms a negative pressure, and the external air is pressed into the cavity of the outer fire cover from the fire hole. When the external air is mixed with the residual gas in the cavity of the fire cover and the outer ring gas cavity of the burner head to a certain ratio, it is ignited by the fire hole that is still burning, causing explosion and generating flameout noise. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes a burner head with a gas combing device, which can not only comb the flow direction and flow rate of the gas flowing into the mixing chamber of the burner head to make the combustion more uniform and stable, but also effectively suppress the effect of flameout noise.

[0005] According to the burner head with a gas combing device provided above, it is realized by the following technical solution:

[0006] A burner with a gas combing device comprises a burner body, wherein the burner body is provided with an upwardly opening gas mixing chamber and at least two gas channels, and further comprises a gas combing device, wherein the gas combing device comprises a blocking structure arranged in the gas mixing chamber and located above the outlet of the gas channel, the blocking structure is provided with a gas combing channel connected to the gas channel, or the blocking structure, the bottom and annular wall of the gas mixing chamber jointly define a gas combing channel connected to the gas channel, the gas combing channel is used to change the flow direction of the gas, and an air outlet for allowing the gas to flow out in a horizontal direction is provided on the left side and / or right side of the gas combing channel, and the air outlet is connected to the gas mixing chamber.

[0007] In some embodiments, the blocking structure is a guide vane inclined in the vertical direction, the lower side and upper side of the guide vane respectively abut or connect to the outer annular wall and the inner annular wall of the air mixing chamber, and the guide vane, the bottom and the annular wall of the air mixing chamber jointly define the combing air channel having left and right air outlets.

[0008] In some embodiments, the blocking structure includes a connecting plate and a baffle, one side of the connecting plate abuts or is connected to the outer annular wall of the air mixing chamber, and the other side extends upward or obliquely upward and is connected to the baffle, and the side of the baffle away from the connecting plate abuts or is connected to the inner annular wall of the air mixing chamber, and the connecting plate, the baffle, the bottom and the annular wall of the air mixing chamber jointly define the combing channel having left and right air outlets.

[0009] In some embodiments, a groove opening upward is integrally punched downward in the middle of the blocking structure to define left and right air combing channels.

[0010] In some embodiments, the groove is in a "V" shape.

[0011] In some embodiments, a guide portion for guiding the gas to flow toward the gas outlet is provided at the bottom of the blocking structure.

[0012] In some embodiments, the guide portion is disposed below the middle portion of the blocking structure, and the guide portion is in a "V" shape to define left and right combing air channels.

[0013] In some embodiments, the top of the blocking structure is lower than the upper end surface of the gas mixing chamber, and the height of the blocking structure is 200 mm to 9 mm.

[0014] In some embodiments, an installation groove is provided at a position of the outer annular wall or the inner annular wall of the mixing chamber corresponding to the outlet of the gas channel, one side of the blocking structure is inserted into the installation groove, and the other side abuts against the annular wall of the mixing chamber facing the installation groove; or, both the outer annular wall and the inner annular wall of the mixing chamber are provided with installation grooves at positions corresponding to the outlet of the gas channel, and the inner and outer sides of the blocking structure are respectively inserted into the installation grooves.

[0015] In some embodiments, the gas combing device also includes an annular support installed in the gas mixing chamber, the bottom of the annular support abuts the bottom of the gas mixing chamber, and the outer side and inner side thereof abut against the outer annular wall and inner annular wall of the gas mixing chamber respectively, and an air vent is provided at a position of the annular support corresponding to the outlet of the gas channel, and the blocking structure is arranged above the air vent and one side of the annular support is connected to the annular support, and the other side abuts against the inner annular wall of the gas mixing chamber.

[0016] In some embodiments, the blocking structure is formed by partially cutting, punching, and then folding the annular support upward, and the air outlet is formed between the annular support and the blocking structure.

[0017] In some embodiments, the gas mixing chamber is provided with a positioning portion, and the annular support is provided with a matching portion at a position corresponding to the positioning portion, and the matching portion is matched and connected with the positioning portion.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] A burner head with a gas combing device of the present invention reduces the flow velocity and changes the flow direction of the gas when it flows into the gas mixing chamber by setting a blocking structure, thereby combing the flow direction and flow velocity of the gas flowing into the gas mixing chamber, ensuring that the flow velocity of the gas flowing into all positions inside the burner fire cover is roughly the same, making the combustion more uniform and stable, and at the same time effectively suppressing the flameout noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a burner head in Embodiment 1 of the present invention;

[0021] Figure 2 is a schematic diagram of the structure decomposition of the burner head in Example 1 of the present invention;

[0022] Figure 3 yes Figure 2 A partial enlarged view of part A;

[0023] Figure 4 It is a partial structural schematic diagram of the second gas combing device in Example 2 of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure decomposition of the third gas combing device and the burner body in Embodiment 3 of the present invention;

[0025] Figure 6 is a schematic structural diagram of a fourth gas combing device in Embodiment 4 of the present invention;

[0026] Figure 7 is a schematic structural diagram of a fifth gas combing device in Embodiment 5 of the present invention;

[0027] Figure 8 It is a partial structural schematic diagram of the sixth gas combing device in Embodiment 6 of the present invention;

[0028] Fig. 9 It is a schematic diagram of the partial structure of the seventh gas combing device in Example 7 of the present invention. DETAILED DESCRIPTION

[0029] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0030] Example 1

[0031] The outer ring gas flow path of the existing burner is as follows: after the gas flows out from the gas channel of the burner, it is roughly divided into two parts, one part flows directly upward into the fire cover cavity, and the other part flows to the left and right sides of the burner gas channel outlet. First, the outer ring gas cavity of the burner is gradually filled and then overflows upward to the fire cover cavity. The gas in the fire cover cavity flows out from the fire hole of the fire cover and burns. Since the gas flow rate flowing directly upward from the gas channel of the burner is greater than the gas flow rate flowing upward from the outer ring gas cavity of the burner, the gas flow rate flowing into each position of the fire cover cavity is different. When the existing burner performs the flameout operation, the gas flow rate of the gas channel of the burner drops sharply, and after the gas in the corresponding local fire cover cavity is burned out, the corresponding local fire hole is extinguished first, and then all other fire holes are extinguished in a short time due to the complete cutting off of the gas. During this process, negative pressure is formed in the fire cover cavity, causing external air to be pressed into the fire cover cavity from the fire holes of the fire cover. When the external air is mixed with the residual gas in the fire cover cavity and the outer ring air cavity of the burner to reach a certain proportion, the still burning fire holes are ignited, causing explosion and generating flameout noise, affecting the user experience.

[0032] like Figures 1 to 3 As shown, in order to solve the above problems, this embodiment provides a burner with a gas combing device, including a burner body 1 and a gas combing device (not shown in the figure), the burner body 1 is provided with an upwardly open gas mixing chamber 11 and at least two gas channels 12 connected to the gas mixing chamber 11, and the plurality of gas channels 12 are evenly spaced along the circumferential direction of the gas mixing chamber 11 to ensure that the gas can evenly enter the gas mixing chamber 11 and improve the uniformity of gas distribution. The gas combing device includes a blocking structure 2, and a blocking structure 2 located in the gas mixing chamber 11 is provided above the outlet of the gas channel 12, and the projection of the blocking structure 2 on the horizontal plane covers the outlet of the corresponding gas channel 12, and the blocking structure 2 is provided with a combing channel (not shown in the figure) connected to the gas channel 12, or the blocking structure 2, the bottom of the gas mixing chamber 11 and the annular wall jointly define a combing channel connected to the gas channel 12, and the combing channel is used to change the flow direction of the gas, and an outlet 3 for making the gas flow out in the horizontal direction is provided on the left and / or right side of the circumferential direction of the combing channel, and the outlet 3 is connected to the gas mixing chamber 11.

[0033] Specifically, the gas mixing chamber 11 is an annular structure with an inner annular wall and an outer annular wall, and the combing gas channel can be defined by the blocking structure 2, the bottom of the gas mixing chamber 11, the inner annular wall or the outer annular wall of the gas mixing chamber 11, or defined by the blocking structure 2, the bottom of the gas mixing chamber 11, the inner annular wall and the outer annular wall of the gas mixing chamber 11. Due to the setting of the blocking structure 2, the gas flow path is changed. The specific gas flow path is: the gas flows vertically upward from the gas channel 12 into the combing gas channel, and its flow velocity is reduced and the flow direction is changed due to the influence of the combing gas channel (i.e., the blocking structure 2), flows along the combing gas channel, flows horizontally from the gas outlet 3 into the gas mixing chamber 11 for premixing, and the gas gradually fills the gas mixing chamber 11 and then overflows upward to the cavity of the burner fire cover, so that the gas flow velocity at each position of the cavity of the burner fire cover is roughly the same, and finally flows out from the fire hole of the burner fire cover and burns. In addition, since the gas flow rate flowing into each position of the cavity of the burner fire cover is roughly the same, when the burner is extinguished, the flow rate is simultaneously reduced due to the gas cut-off, and the residual gas inside the burner is almost burned out at the same time, and the fire holes of the entire burner fire cover are extinguished at the same time. No negative pressure will be formed inside the burner fire cover, and thus no conditions will be created for external air to enter the cavity of the burner fire cover to produce combustion and explosion. Therefore, the flameout noise can be effectively reduced.

[0034] It can be seen that the burner head with a gas combing device in this embodiment, by arranging a blocking structure 2 above the gas channel 12, reduces the flow velocity and changes the flow direction of the gas flowing from the gas channel 12 into the gas mixing chamber 11, thereby combing the flow direction and flow velocity of the gas flowing into the gas mixing chamber 11, ensuring that the gas flow velocity flowing into each position inside the burner fire cover is roughly the same, making the combustion more uniform and stable, and at the same time can also achieve the effect of effectively suppressing the flameout noise.

[0035] Preferably, the number of the gas channels 12 and the blocking structure 2 in this embodiment are both four, and the four gas channels 12 are evenly spaced in the circumferential direction to ensure that the gas flows evenly into the combing gas channel and improve the uniformity of gas separation. More preferably, the top of the blocking structure 2 is lower than the upper end surface of the gas mixing chamber 11, and the height of the blocking structure 2 is 4mm to 9mm, so that the gas can be filled to the top area of ​​the blocking structure 2, ensuring that the gas is filled above the blocking structure 2. In this embodiment, the height of the blocking structure 2 is preferably 6mm to ensure smooth gas outlet and gas outlet area.

[0036] like Figure 2As shown, in this embodiment, the gas combing device also includes an annular support 4 installed in the gas mixing chamber 11, the bottom of the annular support 4 abuts the bottom of the gas mixing chamber 11, and the outer side and inner side thereof abut the outer ring wall and inner ring wall of the gas mixing chamber 11 respectively, so that the annular support 4 is stably and reliably installed in the gas mixing chamber 11, and the gas is prevented from flowing out from between the annular support 4 and the ring wall of the gas mixing chamber 11. A vent 41 is provided at the position of the annular support 4 corresponding to the gas channel outlet, and the size of the vent 41 is larger than the outlet size of the gas channel 12, so as to avoid affecting the gas output due to the setting of the vent 41. The blocking structure 2 is arranged above the air vent 41 and one side of it is connected to the annular support 4, and the other side abuts the inner annular wall or the outer annular wall of the mixing chamber 11, and an air outlet 3 is formed between the blocking structure 2 and the annular support 4. In this way, through the annular support 4, the blocking structure 2 can be quickly, stably and reliably installed inside the mixing chamber 11, and by abutting the side of the blocking structure 2 away from the annular support 4 against the inner annular wall or the outer annular wall of the mixing chamber 11, the gas is prevented from flowing upward from between the blocking structure 2 and the annular wall of the mixing chamber 11, thereby ensuring that the gas flowing into the gas channel 12 flows out tangentially from the gas outlet 3 along the gas channel 12.

[0037] Preferably, the mixing chamber 11 is provided with a positioning portion 111, and the annular support 4 is provided with a matching portion 42 at a position corresponding to the positioning portion 111, and the matching portion 42 is matched and connected with the positioning portion 111. In this way, the installation of the annular support 4 is more stable and reliable through the matching connection between the matching portion 42 and the positioning portion 111.

[0038] More preferably, the annular support 4 is an annular plate, the positioning portion 111 is a positioning column, the matching portion 42 is a positioning hole, and four positioning columns are evenly distributed along the circumferential direction at the bottom of the mixing chamber 11. Correspondingly, the annular support 4 has four positioning holes evenly distributed along the circumferential direction. In this way, the four positioning columns are engaged with the four positioning holes, which effectively prevents the vent 41 of the annular support 4 and the blocking structure 2 from shifting under the action of airflow, thereby further enhancing the stability and reliability of the installation of the gas combing device.

[0039] In other embodiments, the positioning portion 111 and the matching portion 42 may be omitted, or welding or high-temperature resistant adhesive bonding may be used to replace the clamping method of the positioning portion 111 and the matching portion 42 .

[0040] Preferably, the blocking structure 2 is formed by partially cutting and stamping the annular support 4 and then folding it upwards, the blocking structure 2, the bottom surface of the gas mixing chamber 11 and the inner annular wall of the gas mixing chamber 11 jointly define the gas combing channel, and the gas outlet 3 is formed between the annular support 4 and the blocking structure 2. In this way, the processing speed of the blocking structure 2 can be increased and the connection strength between the blocking structure 2 and the annular support 4 can be improved.

[0041] like Figure 1-3As shown, specifically, the blocking structure 2 includes a connecting plate 21 and a baffle 22. One side of the connecting plate 21 abuts or is connected to the outer annular wall of the mixing chamber 11, and the other side extends upward or obliquely upward. The baffle 22 is arranged above the outlet of the gas channel 12. The outer side of the baffle 22 is connected to the connecting plate 21 and the two are arranged at a right angle or an obtuse angle. The inner side abuts or is connected to the inner annular wall of the mixing chamber 11. The connecting plate 21, the baffle 22, the bottom of the mixing chamber 11 and the inner annular wall jointly define a combing channel with left and right air outlets. Thus, a combing gas channel with left and right air outlets is defined by the connecting plate 21, the baffle plate 22, the bottom of the mixing chamber 11 and the inner ring wall, so that the area of ​​the air outlet 3 is larger, the unit air outlet volume is increased, and the combustion is guaranteed to be more stable; at the same time, by setting the two left and right air outlets 3, not only the porosity is improved, but also the air outlet directions of the two adjacent air outlets 3 can be made relative, so that convection is formed when the gas flows from the air outlet 3 in the horizontal direction, further improving the mixing uniformity of the gas and air, and effectively ensuring that the gas flow rate at each position of the cavity of the burner fire cover is roughly the same, so that the combustion is more stable and uniform, and the flameout noise is effectively suppressed.

[0042] In this embodiment, the lower side of the connecting plate 21 is connected to the annular support 4, and the lower side of the connecting plate 21 is in contact with the outer annular wall of the mixing chamber 11 through the outer side of the annular support 4. The baffle plate 22 is arranged directly above and its outer side is connected to the upper side of the connecting plate 21, and its inner side is in contact with the inner annular wall of the mixing chamber 11. In this way, the connecting plate 21 is in contact with the outer annular wall of the mixing chamber 11 through the outer side of the annular support 4, thereby improving the air tightness between the connecting plate 21 and the mixing chamber 11.

[0043] Preferably, the connecting plate 21 and the baffle 22 form a "7" shape, and the connecting plate 21 includes a connecting surface 211 and a transition surface 212. The lower side of the connecting surface 211 is connected to the annular support 4, and the upper side is connected to the baffle 22 through the transition surface 212. In the embodiment, the connecting surface 211 is a vertically arranged plane to ensure that the outlet area of ​​the gas outlet 3 formed between the blocking structure 2 and the annular support 4 is larger. The transition surface 212 is an inclined surface or an arc surface to better guide the gas to flow upward to the baffle 22. The baffle 22 is a horizontally arranged plane, so that when the gas flows upward, it is affected by the baffle 22 to reduce the flow velocity, and the gas flow direction is better turned to the horizontal direction, further ensuring that the gas flows in the horizontal direction and flows out tangentially from the gas outlet 3.

[0044] More preferably, the baffle 22 is lower than the plane of the upper end surface of the mixing chamber 11, so that the gas outlet 3 formed between the blocked structure 2 and the annular support 4 is lower than the upper end surface of the mixing chamber 11, ensuring that after the gas flows out horizontally from the gas outlet 3, it is first premixed evenly in the mixing chamber 11, and then flows upward to the cavity of the burner fire cover at approximately the same flow rate.

[0045] In other embodiments, the baffle 22 may also be configured as a slope arranged obliquely in the vertical direction to further increase the air outlet area of ​​the air outlet 3 .

[0046] Example 2

[0047] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that the structure of the blocking structure 2 is different. Specifically, the blocking structure 2 is a guide plate (not shown in the figure) arranged obliquely in the vertical direction, the guide plate is arranged above the opening of the annular support 4, the lower side of the guide plate is connected to the annular support 4, and abuts against the outer ring wall of the mixing chamber through the outer side of the annular support 4. The upper side of the guide plate extends obliquely upward to abut or connect to the inner ring wall of the mixing chamber, so that the guide plate, the bottom of the mixing chamber and the inner ring wall jointly define a combing channel with left and right air outlets.

[0048] In this embodiment, the guide vane is a curved surface, which is formed by partially cutting and stamping the annular support 4 and then folding it upward, and an air outlet 3 is formed between the annular support 4 and the blocking structure 2. In other embodiments, the guide vane can also be an inclined surface.

[0049] It can be seen that by setting the blocking structure 2 as a guide plate, it is ensured that the blocking structure 2 can sort out the flow direction and flow rate of the gas flowing into the mixing chamber 11, while making the structure of the gas sorting device simpler, which is convenient for rapid processing and forming of the blocking structure 2.

[0050] Example 3

[0051] like Figure 5 As shown, the difference from the embodiment 1 is that the gas combing device of this embodiment omits the annular support. Specifically, the outer ring wall of the gas mixing chamber 11 is provided with a mounting groove 13 at a position corresponding to the gas channel outlet, and the blocking structure 2 is in a "7" shape, and its outer lower end surface is provided with a mounting portion 203 extending outward. When installed, the mounting portion 203 of the blocking structure 2 is inserted into the mounting groove 13, and the inner side abuts against the inner ring wall of the gas mixing chamber 11 facing the mounting groove 13.

[0052] It can be seen that by eliminating the annular support and inserting the mounting portion 203 of the blocking structure 2 into the mounting groove 13, the inner side of the blocking structure 2 abuts against the inner annular wall of the gas mixing chamber 11, which not only realizes the stable and reliable installation of the blocking structure 2 in the gas mixing chamber 11 and above the outlet of the gas channel 12, but also saves manufacturing materials and reduces manufacturing costs. In addition, the mounting portion 203 of the blocking structure 2 is inserted into the mounting groove 13 so that the connecting plate of the blocking structure 2 moves toward the outside, further increasing the gas outlet area of ​​the gas outlet 3, improving the unit gas outlet effect, and improving the combustion performance of the burner.

[0053] In other embodiments, the mounting portion 203 may be arranged on the inner side of the blocking structure 2, and correspondingly, the mounting groove 13 is arranged on the inner ring wall and located above the outlet of the gas channel 12. Alternatively, the inner ring wall and the outer ring wall of the gas mixing chamber 11 are both provided with mounting grooves 13 at positions corresponding to the outlet of the gas channel, and the inner and outer lower end surfaces of the blocking structure 2 are both correspondingly provided with mounting portions 203, so that the installation of the blocking structure 2 is more stable and reliable, and the displacement of the blocking structure 2 due to the impact of airflow is effectively prevented.

[0054] Example 4

[0055] like Figure 6 As shown, the difference between this embodiment and the embodiment 1 is that the structure of the blocking structure 2 is different. Specifically, a groove 201 opening upward is formed by punching downward in the middle of the blocking structure 2 to define the left and right combing air channels. Preferably, the groove 201 is in a "V" shape, and the side wall of the groove 201 is an inclined surface arranged obtusely or in an arc transition with the portion of the blocking structure 2 located outside the groove 201. The other parts are the same as those in the embodiment 1.

[0056] It can be seen that by adding the "V"-shaped groove 201, the side wall of the groove 201 can better guide the gas to flow upward to the plane section of the baffle of the blocking structure 2, and the gas flow rate is reduced under the influence of the plane section of the baffle of the blocking structure 2, and the gas is better turned to the horizontal direction. In addition, the groove 201 is formed by stamping the middle part of the blocking structure 2 downward, which is convenient for the rapid processing and forming of the groove 201, which not only saves the connection process between the groove 201 and the blocking structure 2, but also improves the utilization rate of the blocking structure 2 itself.

[0057] Example 5

[0058] like Figure 7 As shown, the difference between this embodiment and embodiment 4 is that the shape of the groove 201 is different. Specifically, the groove 201 is in a "V" shape, and the side wall of the groove 201 is a curved surface, which is smoothly transitioned to the portion of the blocking structure 2 located outside the groove 201. The other parts are the same as those of embodiment 4.

[0059] It can be seen that by designing the side wall of the groove 201 as a curved surface and setting the side wall of the groove 201 and the plane section of the baffle of the blocking structure 2 in a smooth transition, the gas flows upward more smoothly and turns to the horizontal direction better.

[0060] Example 6

[0061] like Figure 8As shown, the difference between this embodiment and embodiment 1 is that the structure of the blocking structure 2 is different. Specifically, a guide portion 202 for guiding the gas to flow toward the gas outlet 3 is provided at the bottom of the blocking structure 2. The guide portion 202 is arranged below the middle of the blocking structure 2, and the guide portion 202 is in a "V" shape to define left and right combing gas channels.

[0062] In this embodiment, the side wall of the guide portion 202 is an inclined surface arranged in a vertical direction, and the inclined surface is arranged at an obtuse angle or an arc transition with the baffle of the blocking structure 2. Other parts are the same as those in the first embodiment.

[0063] It can be seen that by adding a "V"-shaped guide portion 202 at the lower middle part of the blocking structure 2, the gas can be better guided to flow upward along the guide portion 202 to the baffle of the blocking structure 2. The flow velocity of the gas is reduced under the influence of the baffle of the blocking structure 2, and the gas is better turned in the horizontal direction and flows out in the horizontal direction from the outlet 3.

[0064] Example 7

[0065] like Fig. 9 As shown, the difference between this embodiment and embodiment 6 is that the shape of the guide portion 202 is different. Specifically, the guide portion 202 is "V" shaped, and the side wall of the guide portion 202 is a curved surface, which is smoothly transitioned with the baffle of the blocking structure 2. Other parts are the same as those of embodiment 4.

[0066] It can be seen that by designing the side wall of the groove 201 as a curved surface, and the side wall of the groove 201 and the plane section of the baffle of the blocking structure 2 are smoothly transitioned, the gas flows upward more smoothly, turns horizontally better, and flows out tangentially from the outlet 3 in the horizontal direction.

[0067] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A burner with a gas combing device, comprising a burner body (1), wherein the burner body (1) is provided with a gas mixing chamber (11) opening upward and at least two gas channels (12), It is characterized in that It also comprises a gas combing device, the gas combing device comprising a blocking structure (2) arranged in the gas mixing chamber (11) and located above the outlet of the gas channel (12), the blocking structure (2), the bottom and the annular wall of the gas mixing chamber (11) jointly defining a gas combing channel connected to the gas channel (12), the gas combing channel being used to change the flow direction of the gas, and gas outlets (3) for allowing the gas to flow out in a horizontal direction are provided on the left and right sides of the gas combing channel, the gas outlets (3) being connected to the gas mixing chamber (11); The blocking structure (2) is a guide plate arranged obliquely in the vertical direction, the lower side and the upper side of the guide plate respectively abut against or connect to the outer annular wall and the inner annular wall of the air mixing chamber (11), and the guide plate, the bottom and the annular wall of the air mixing chamber (11) jointly define the air combing channel having left and right air outlets; Alternatively, the blocking structure (2) comprises a connecting plate (21) and a baffle plate (22); one side of the connecting plate (21) abuts against or is connected to the outer annular wall of the air mixing chamber (11); the other side of the connecting plate (21) extends upward or obliquely upward and is connected to the baffle plate (22); a side of the baffle plate (22) away from the connecting plate (21) abuts against or is connected to the inner annular wall of the air mixing chamber (11); the connecting plate (21), the baffle plate (22), the bottom and the annular wall of the air mixing chamber (11) jointly define the combing air channel having left and right air outlets.

2. A burner head with a gas combing device according to claim 1, It is characterized in that The guide plate is a curved surface.

3. A burner head with a gas combing device according to claim 1, It is characterized in that The connecting plate (21) and the baffle plate (22) form a "7" shape; the connecting plate (21) comprises a connecting surface (211) and a transition surface (212); the upper side of the connecting surface (211) is connected to the baffle plate (22) via the transition surface (212).

4. A burner head with a gas combing device according to claim 1, It is characterized in that A groove (201) opening upward is integrally punched downward in the middle of the blocking structure (2) to define left and right air combing channels.

5. A burner head with a gas combing device according to claim 4, It is characterized in that The groove (201) is in a "V" shape.

6. A burner head with a gas combing device according to claim 1, It is characterized in that A guide portion (202) for guiding the gas to flow toward the gas outlet (3) is provided at the bottom of the blocking structure (2).

7. A burner with a gas combing device according to claim 6, It is characterized in that The air guide portion (202) is arranged below the middle portion of the blocking structure (2), and the air guide portion (202) is in a "V" shape to define left and right air combing channels.

8. A burner head with a gas combing device according to any one of claims 1 to 7, It is characterized in that The top of the blocking structure (2) is lower than the upper end surface of the gas mixing chamber (11), and the height of the blocking structure (2) is 4 mm to 9 mm.

9. A burner head with a gas combing device according to any one of claims 1 to 7, It is characterized in that An installation groove (13) is provided at a position of the outer annular wall or the inner annular wall of the gas mixing chamber (11) corresponding to the outlet of the gas passage (12); one side of the blocking structure (2) is inserted into the installation groove (13), and the other side abuts against the annular wall of the gas mixing chamber (11) facing the installation groove (13); Alternatively, the outer annular wall and the inner annular wall of the gas mixing chamber (11) are both provided with mounting grooves (13) at positions corresponding to the outlet of the gas channel (12), and the inner side and the outer side of the blocking structure (2) are respectively inserted into the mounting grooves (13).

10. A burner head with a gas combing device according to any one of claims 1 to 7, It is characterized in that The gas combing device further comprises an annular support (4) installed in the gas mixing chamber (11), the bottom of the annular support (4) abuts against the bottom of the gas mixing chamber (11), and the outer side and inner side thereof abut against the outer annular wall and the inner annular wall of the gas mixing chamber (11) respectively, and a vent (41) is provided at a position of the annular support (4) corresponding to the outlet of the gas channel (12), and the blocking structure (2) is arranged above the vent (41) and one side of the blocking structure (2) is connected to the annular support (4) and the other side abuts against the inner annular wall of the gas mixing chamber (11).

11. A burner with a gas combing device according to claim 10, It is characterized in that The blocking structure (2) is formed by partially cutting and punching the annular support (4) and then folding it upwards, and the air outlet (3) is formed between the annular support (4) and the blocking structure (2).

12. A burner with a gas combing device according to claim 10, It is characterized in that The gas mixing chamber (11) is provided with a positioning portion (111), and the annular support (4) is provided with a matching portion (42) at a position corresponding to the positioning portion (111), and the matching portion (42) is matched and connected with the positioning portion (111).

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