Combustor and stove comprising same

Abstract

The utility model provides a burner and a stove comprising the same, the burner comprises a gas nozzle and a cup body, the cup body is provided with a gas inlet, the gas nozzle is located below the cup body and arranged towards the gas inlet along the vertical upward direction, the burner further comprises a baffle, and the baffle is arranged at the gas inlet and located above the gas nozzle; a vent hole is formed in the baffle, and the aperture size of the vent hole is set to be capable of preventing liquid from passing through; a circulation gap is formed between the baffle and the side wall of the fuel gas inlet; in the vertical direction, the vent hole is at least located in the projection range of the gas nozzle, and the circulation gap is located outside the projection range of the gas nozzle. The vent hole capable of preventing liquid from passing but enabling gas to pass through is formed in the projection range of the gas nozzle, it is guaranteed that the baffle does not affect gas passing through the gas inlet, meanwhile, the liquid is prevented from dripping into the gas nozzle, and therefore the gas nozzle is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to a gas cooker, in particular to a burner and a cooker comprising the burner. Background Art

[0002] At present, the burners with vertically mounted gas nozzles with cup bodies on the market generally have the problem of overflow blocking the gas nozzle. The gas nozzle and the cup body are both installed on the base and the gas nozzle is in the cup body. The fire cover is located above the cup body, and the gas enters the fire cover through the gas inlet on the cup body. However, the overflow from the fire cover into the cup body and the overflow from the liquid receiving pan into the cup body will block the gas nozzle. The common solution is to change the gas nozzle and the ejector pipe to an inclined setting to avoid the overflow from the fire cover from clogging the gas nozzle. However, the inclined gas nozzle and ejector pipe reduce the ejection efficiency, and overflow can still enter the gas nozzle to cause gas nozzle blockage. Therefore, when the problem of gas nozzle blockage occurs, it can only be solved by cleaning or even replacing the gas nozzle through after-sales service, which results in poor user experience and high maintenance costs. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the gas nozzle of a burner with a vertically installed gas nozzle is easily blocked by overflow, and to provide a burner and a stove including the same.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A burner comprising a gas nozzle and a cup body, wherein the cup body is provided with a gas inlet, the gas nozzle is located below the cup body and is arranged vertically upward toward the gas inlet, and the burner further comprises a baffle, the baffle being arranged at the gas inlet and above the gas nozzle;

[0006] A vent hole is provided on the baffle, and the aperture size of the vent hole is set to be able to prevent liquid from passing through;

[0007] A flow gap is provided between the baffle and the side wall of the gas inlet;

[0008] In the vertical direction, the vent hole is at least located within the projection range of the gas nozzle, and the flow gap is located outside the projection range of the gas nozzle.

[0009] A baffle is provided at the gas inlet of the burner, and a vent is provided on the baffle. The aperture of the vent is set to allow gas to pass through but prevent liquid from passing through. In the vertical direction, the vent is set at least within the projection range of the gas nozzle. Gas ejected from the gas nozzle can pass through the vent smoothly without affecting combustion. At the same time, because the vent can prevent liquid from passing through, overflow from the fire cover will not drip onto the gas nozzle, thereby avoiding clogging of the gas nozzle. At the same time, a flow gap is provided between the baffle and the side wall of the gas inlet. The flow gap is set outside the projection range of the gas nozzle. The flow gap allows overflow from the fire cover to flow through, preventing the overflow from accumulating on the baffle. The vent utilizes the effect of liquid tension to set the vent to a smaller aperture. When overflow drips onto the baffle, the liquid cannot pass through the smaller aperture due to the liquid tension, thereby preventing the liquid from passing through the vent, achieving the vent's function of ventilation and water blocking. By setting a baffle in the burner and providing a flow gap between the baffle and the side wall of the gas inlet, overflow can be prevented from dripping into the gas nozzle, reducing the possibility of the gas nozzle being blocked and improving the user experience.

[0010] Preferably, a boss is provided on the upper surface of the baffle, and in the vertical direction, the boss is provided at a position that at least covers the projection range of the gas nozzle, and the vents are evenly distributed on the boss.

[0011] By arranging a boss on the baffle, the boss is arranged at a position that at least covers the projection range of the gas nozzle, and the air vent is arranged on the boss to ensure that the liquid will not drip onto the head of the gas nozzle. There is a height difference between the boss and other parts of the baffle, so that the liquid blocked at the vent can easily flow toward other parts of the baffle, avoiding liquid accumulation at the boss, and further avoiding liquid accumulation above the gas nozzle and clogging the gas outlet of the gas nozzle.

[0012] Preferably, in the vertical direction, the boss is disposed outside the projection range of the gas nozzle, and the edge of the boss also has the flow gap.

[0013] By setting the position of the boss to be outside the projection range of the gas nozzle, that is, the projection range of the boss is larger than the projection range of the nozzle, the boss is widened relative to the nozzle. If the overflow liquid is dripping because the airflow path is not completely vertical, the widened boss can further prevent the overflow liquid from dripping onto the nozzle.

[0014] Preferably, the burner further comprises a connecting portion, the baffle is connected to the gas inlet via the connecting portion, and the connecting portion and the baffle are arranged to form the flow gap.

[0015] Preferably, the vent holes are also provided on the surface of the connecting portion.

[0016] By also arranging vent holes on the surface of the connection part, the flow channel of the gas is increased.

[0017] Preferably, the baffle is arranged at the top of the gas inlet through the connecting portion, and a bearing and limiting structure is provided at the top of the gas inlet, wherein the bearing and limiting structure is used to bear the connecting portion in a vertical upward direction and limit the displacement of the connecting portion in a horizontal direction.

[0018] By setting a bearing and limiting structure on the top of the gas inlet, the bearing and limiting structure supports the connecting part in the vertical upward direction and limits the horizontal displacement of the connecting part, thereby fixing the baffle at the gas inlet. This structural setting scheme has a simple structure and is easy to install and disassemble.

[0019] Preferably, the area of ​​the circulation gap located at the edge of the boss is smaller than the area of ​​the circulation gap formed by the connecting portion and the baffle.

[0020] Preferably, the baffle and the connecting portion are integrally formed.

[0021] Preferably, the diameter of the vent hole is D, D≤1.5mm; or, the diameter of the vent hole is D, 1mm≤D≤1.5mm.

[0022] By setting the vent hole diameter to be less than or equal to 1.5mm, liquid can be effectively prevented from dripping from the vent hole onto the gas nozzle. By setting the vent hole diameter to be greater than or equal to 1mm, the gas flow velocity can be affected by preventing excessive resistance to the gas caused by the vent hole being too small.

[0023] Preferably, the cup body and the base of the burner are designed to be separate bodies, and the burner further comprises a heat insulating pad, which is arranged between the cup body and the base.

[0024] By setting an insulating pad between the cup body and the base, the heat conducted from the cup body to the base can be reduced, and then the heat conducted from the base to the gas nozzle can be reduced, thereby reducing the temperature rise of the gas nozzle and avoiding excessive temperature rise of the gas nozzle, which leads to a decrease in gas density and reduced injection efficiency.

[0025] A stove is characterized in that it comprises the burner as described above.

[0026] The positive and progressive effects of the present invention are as follows: a baffle is provided at the gas inlet of the burner, and a vent is provided on the baffle, and the aperture of the vent is set to allow gas to pass through but prevent liquid from passing through. In the vertical direction, the vent is set at least within the projection range of the gas nozzle, so that gas ejected from the gas nozzle can smoothly pass through the vent without affecting combustion. At the same time, because the vent can prevent liquid from passing through, overflow from the fire cover will not drip onto the gas nozzle, thereby preventing clogging of the gas nozzle. At the same time, a flow gap is provided between the baffle and the side wall of the gas inlet, and the flow gap is set outside the projection range of the gas nozzle. The flow gap allows overflow from the fire cover to flow through and prevents overflow from accumulating on the baffle. The vent is specifically set to a smaller aperture by utilizing the effect of liquid tension. When overflow drips onto the baffle, the liquid cannot pass through the smaller aperture due to the liquid tension, thereby preventing the liquid from passing through the vent, thereby achieving the vent's function of ventilation and water blocking. By setting a baffle in the burner and providing a flow gap between the baffle and the side wall of the gas inlet, overflow can be prevented from dripping into the gas nozzle, reducing the possibility of the gas nozzle being blocked and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic cross-sectional view of a burner according to a preferred embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the cup body and the baffle in a preferred embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the baffle and the connecting part of a preferred embodiment of the present invention.

[0030] Figure 4 This is a schematic top view of a baffle and a connecting portion of a preferred embodiment of the present invention.

[0031] Figure 5 This is a front view schematic diagram of a baffle and a connecting portion of a preferred embodiment of the present invention.

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of a cup body according to a preferred embodiment of the present invention.

[0033] Figure 7 This is a schematic cross-sectional structure diagram of the cup body and base of a preferred embodiment of the present invention.

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of a base according to a preferred embodiment of the present invention.

[0035] Figure 9This is a schematic diagram of the three-dimensional structure of a gas mixing chamber assembly according to a preferred embodiment of the present invention.

[0036] Description of reference numerals:

[0037] Burner 001

[0038] Gas nozzle 1

[0039] Cup 2

[0040] Gas inlet 201

[0041] Load-bearing and limiting structure 202

[0042] The first side of the load-bearing and limiting structure 2021

[0043] The second side of the bearing and limiting structure 2022

[0044] Positioning pit 203

[0045] Positioning column 204

[0046] Baffle 3

[0047] Boss 31

[0048] Vent 301

[0049] Circulation gap 302

[0050] Transition Zone 32

[0051] Connecting part 4

[0052] Fire Cover 5

[0053] Insulation pad 6

[0054] Base 7 DETAILED DESCRIPTION

[0055] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0056] like Figures 1-9 As shown, this embodiment provides a burner 001, specifically as Figure 1 As shown, the burner 001 includes a gas nozzle 1 and a cup body 2, a gas inlet 201 is provided on the cup body 2, the gas nozzle 1 is located below the cup body 2 and is arranged vertically upward toward the gas inlet 201, the burner 001 also includes a baffle 3, the baffle 3 is provided at the gas inlet 201 and is located above the gas nozzle 1; Figure 2 and Figure 3As shown, a vent hole 301 is provided on the baffle 3, and the aperture size of the vent hole 301 is set to be able to prevent liquid from passing through; a flow gap 302 is provided between the baffle 3 and the side wall of the gas inlet 201; in the vertical direction, the setting position of the vent hole 301 is at least within the projection range of the gas nozzle 1, and the setting position of the flow gap 302 is outside the projection range of the gas nozzle 1. By setting a baffle 3 at the gas inlet 201 of the burner 001, a vent hole 301 is set on the baffle 3, and the aperture of the vent hole 301 is set to allow gas to pass through but prevent liquid from passing through. In the vertical direction, the setting position of the vent hole 301 is at least within the projection range of the gas nozzle 1, and the gas ejected from the gas nozzle 1 can smoothly pass through the vent hole 301 without affecting combustion. At the same time, since the vent hole 301 can prevent liquid from passing through, the overflow from the fire cover 5 is blocked by the baffle 3 and will not drip onto the gas nozzle 1, thereby avoiding clogging of the gas nozzle 1. At the same time, there is a flow gap 302 between the baffle 3 and the side wall of the gas inlet 201. The setting position of the flow gap 302 is outside the projection range of the gas nozzle 1. The flow gap 302 can allow the overflow from the fire cover 5 to flow through, thereby avoiding the accumulation of overflow on the baffle 3. The vent hole 301 specifically utilizes the effect of liquid tension to set the vent hole 301 as a smaller through hole. When the overflow liquid drips onto the baffle 3, due to the effect of liquid tension, the liquid cannot pass through the vent hole 301 with a smaller aperture, thereby preventing the liquid from passing through the vent hole 301, thereby realizing the ventilation and water-blocking function of the vent hole 301.

[0057] That is, in this embodiment, a baffle 3 is provided at the gas inlet 201, and a flow gap 302 is provided outside the projection range of the gas nozzle 1 in the vertical direction to allow liquid to flow through. A vent hole 301 is provided within the projection range of the gas nozzle 1 to prevent liquid from passing through but allow gas to pass through. This ensures that the baffle 3 does not affect the passage of gas from the gas inlet 201, and at the same time prevents liquid from dripping into the gas nozzle 1, thereby preventing the gas nozzle 1 from being clogged.

[0058] Specifically in this embodiment, Figure 3 、 Figure 4 and Figure 5As shown, the upper surface of the baffle 3 is provided with a boss 31. In the vertical direction, the boss 31 is positioned larger than the projection of the gas nozzle 1. A flow gap 302 is defined at the edge of the boss 31, and the remaining portion of the boss 31 is distributed with air vents 301. By providing the boss 31 on the baffle 3, the upper surface of the boss 31 is higher than the rest of the baffle 3. Liquid on the boss 31 flows to other parts, making it less likely to accumulate liquid on the boss 31. The boss 31 is positioned larger than the projection of the gas nozzle 1 and is widened relative to the nozzle. If overflowing liquid drips due to a non-perpendicular airflow path, the widened boss 31 further prevents it from dripping onto the nozzle. The flow gap 302 is provided at the edge of the boss 31, outside the projection of the gas nozzle 1, facilitating the immediate removal of accumulated liquid. The vent holes 301 are evenly distributed in the remaining positions of the boss 31 except the flow gap 302, rather than being arranged only within the projection range of the gas nozzle 1. This can increase the number of the vent holes 301, allowing more gas to pass through the vent holes 301, and further ensure that the baffle 3 does not affect the flow of gas.

[0059] Specifically in this embodiment, the flow gap 302 at the edge of the boss 31 is a guide hole that passes through the baffle 3 in the vertical direction, and the guide hole can allow overflow liquid to pass through.

[0060] Of course, in other embodiments, the setting position of the boss 31 may only cover the projection range of the gas nozzle 1, or in more embodiments, the setting position of the boss 31 covers outside the projection range of the gas nozzle 1, but the vent holes 301 are only evenly distributed within the projection range of the gas nozzle 1.

[0061] In this embodiment, if Figure 2 and Figure 3 As shown, the burner 001 further includes a connection portion 4, through which the baffle 3 is connected to the gas inlet 201. The connection portion 4 and the inner wall of the gas inlet 201 define a flow gap 302. The provision of the connection portion 4 allows the baffle 3 to be secured to the gas inlet 201 via the connection portion 4, which is defined by the connection portion 4 and the inner wall of the gas inlet 201. Specifically, in this embodiment, the connection portion 4 has flow guide holes extending vertically through the connection portion 4, forming a fluid gap.

[0062] Of course, in other embodiments, the flow gap 302 can also be formed by the peripheral side of the connecting portion 4 and the inner wall of the gas inlet 201. That is, the peripheral side of the connecting portion 4 is not completely in contact with the inner wall of the gas inlet 201, and the gap at the non-contact position serves as the flow gap 302.

[0063] Furthermore, if Figure 4As shown, the area of ​​the flow gap 302 provided at the edge of the boss 31 is smaller than the area of ​​the flow gap 302 formed by the connection portion 4 and the inner wall of the gas inlet 201. Since the flow gap 302 at the edge of the boss 31 mainly drains part of the liquid inlet on the boss 31, while the flow gap 302 formed by the connection portion 4 and the inner wall of the gas inlet 201 needs to drain all liquid except the liquid drained from the edge of the boss 31 to prevent liquid accumulation above the gas inlet 201, the area of ​​the flow gap 302 formed by the connection portion 4 and the inner wall of the gas inlet 201 can be set larger to ensure that liquid does not accumulate above the gas inlet 201.

[0064] In this embodiment, if Figure 3 、 Figure 4 and Figure 5 As shown, in addition to the boss 31, the baffle 3 also has a transition zone 32 connected to the connecting portion 4. The transition zone 32 is arranged on the outside of the boss 31. The transition zone 32 is arranged to be inclined downward from the inside to the outside, so that the highest point of the baffle 3 is the boss 31. When the liquid flows from the boss 31 to the transition zone 32, it can quickly slide down and leave the baffle 3.

[0065] Furthermore, air holes 301 are provided on the surface of the transition zone 32 and the surface of the connecting portion 4. The air holes 301 are evenly distributed throughout the entire transition zone 32, and the air holes 301 are also evenly distributed in the area of ​​the connecting portion 4 except for the flow gap 302. By providing air holes 301 in both the transition zone 32 and the connecting portion 4, the number of air holes 301 is further increased, so that more gas can pass through the air holes 301, ensuring that the baffle 3 does not affect the circulation of the gas.

[0066] In this embodiment, if Figure 2 、 Figure 6 and Figure 7 As shown, the baffle 3 is disposed at the top of the gas inlet 201 via the connection portion 4. A load-bearing and position-limiting structure 202 is provided at the top of the gas inlet 201. The load-bearing and position-limiting structure 202 is used to support the connection portion 4 in the vertical upward direction and to limit the horizontal displacement of the connection portion 4. Specifically, the load-bearing and position-limiting structure 202 provided at the top of the gas inlet 201 is disposed at the top of the top wall of the gas inlet 201. The load-bearing and position-limiting structure 202 has a first surface and a second surface. The first surface 2021 of the load-bearing and position-limiting structure is disposed horizontally and is used to support the connection portion 4 in the vertical upward direction. The second surface 2022 of the load-bearing and position-limiting structure encloses a cylindrical cavity, in which the baffle 3 and the connection portion 4 are placed. The second surface 2022 of the load-bearing and position-limiting structure is used to limit the horizontal position of the connection portion 4.

[0067] Of course, in other embodiments, the baffle 3 may be fixed to the gas inlet 201 by other connection methods in the prior art, for example, by connecting the connecting portion 4 to the baffle 3 and the inner wall of the gas inlet 201 respectively, thereby fixing the baffle 3, which will not be repeated here.

[0068] Specifically, in this embodiment, the baffle 3 and the connecting portion 4 are integrally formed. That is, the boss 31 and transition region 32 of the baffle 3 and the connecting portion 4 are integrally formed. The integrally formed baffle 3 and connecting portion 4 have a simpler structure, eliminating the need for additional connecting structures, and also provide a higher structural strength.

[0069] In this embodiment, if Figure 4 As shown, the diameter of the vent hole 301 is D, and the value range of D is 1mm≤D≤1.5mm. By setting the diameter of the vent hole 301 to be less than or equal to 1.5mm, liquid can be effectively prevented from dripping from the vent hole 301 onto the gas nozzle 1. By setting the diameter of the vent hole 301 to be greater than or equal to 1mm, the effect of excessive resistance to the gas and thus affecting the gas flow rate due to the too small diameter of the vent hole 301 can be avoided.

[0070] Of course, in other embodiments, the range of D can be D ≤ 1.5 mm, that is, there is no lower limit on the size of D, as long as it ensures that liquid cannot pass through the vent hole 301. Of course, in order to reduce the impact of the baffle 3 on the circulation speed of the gas, the diameter of the vent hole 301 is preferably greater than or equal to 1 mm.

[0071] In addition, in this embodiment, a liquid storage area and a diversion groove (not shown in the figure) are also provided on the base 7 of the burner 001. The liquid storage area can temporarily store the liquid dripping onto the base 7. As the combustion progresses, the liquid in the liquid storage area will gradually evaporate and dry up. At the same time, the diversion groove connects the liquid storage area with the outside world, and can divert the liquid to the outside of the burner 001 when there is a lot of liquid, so as to avoid liquid accumulation inside the burner 001.

[0072] In this embodiment, if Figure 1 As shown, the cup body 2 and base 7 of the burner 001 are designed as separate parts. The burner 001 also includes a thermal insulation pad 6, which is arranged between the cup body 2 and the base 7. By providing the thermal insulation pad 6 between the cup body 2 and the base 7, the heat transferred from the cup body 2 to the base 7 can be reduced, which in turn reduces the heat transferred from the base 7 to the gas nozzle 1, reducing the temperature rise of the gas nozzle 1, and avoiding excessive temperature rise of the gas nozzle 1, which leads to a decrease in gas density and reduced injection efficiency.

[0073] In this embodiment, if Figure 8 and Figure 9As shown, the cup body 2 of the burner 001 is composed of a base provided with an ignition needle and a thermocouple and a mixing chamber assembly having a gas inlet 201 and a mixing chamber. Three positioning pits 203 are provided on the base of the cup body 2, and three positioning columns 204 are provided on the back of the mixing chamber assembly. The angles formed by adjacent positioning pits 203 and the axis of the burner 001 and the angles formed by adjacent positioning columns 204 and the axis of the burner 001 are both 120°. After the positioning column 204 is aligned with any one of the positioning pits 203, the three positioning columns 204 and the three positioning pits 203 can be aligned, thereby realizing the installation of the mixing chamber.

[0074] This embodiment also provides a stove, which includes the burner 001 as described above.

[0075] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A burner comprising a gas nozzle and a cup body, wherein the cup body is provided with a gas inlet, the gas nozzle is located below the cup body and is arranged vertically upward toward the gas inlet, characterized in that: The burner further comprises a baffle, which is arranged at the gas inlet and located above the gas nozzle; A vent hole is provided on the baffle, and the aperture size of the vent hole is set to be able to prevent liquid from passing through; A flow gap is provided between the baffle and the side wall of the gas inlet; In the vertical direction, the vent hole is at least located within the projection range of the gas nozzle, and the flow gap is located outside the projection range of the gas nozzle.

2. The burner according to claim 1, wherein A boss is provided on the upper surface of the baffle. In the vertical direction, the boss is provided at a position that at least covers the projection range of the gas nozzle, and the vents are evenly distributed on the boss.

3. The burner according to claim 2, characterized in that In the vertical direction, the boss is located outside the projection range of the gas nozzle, and the edge of the boss also has the flow gap.

4. The burner according to claim 1, wherein The burner further includes a connecting portion, the baffle is connected to the gas inlet via the connecting portion, and the connecting portion and the baffle are arranged to form the flow gap.

5. The burner according to claim 4, characterized in that The vent holes are also provided on the surface of the connecting portion; And / or, the baffle is arranged on the top of the gas inlet through the connecting portion, and a load-bearing and limiting structure is provided on the top of the gas inlet, and the load-bearing and limiting structure is used to support the connecting portion in a vertical upward direction and limit the displacement of the connecting portion in a horizontal direction.

6. The burner according to claim 4, wherein A boss is provided on the upper surface of the baffle. In the vertical direction, the boss is provided at least within the projection range of the gas nozzle, and the vents are evenly distributed on the boss. In the vertical direction, the boss is located outside the projection range of the gas nozzle, and the edge of the boss also has the flow gap; The area of ​​the circulation gap located at the edge of the boss is smaller than the area of ​​the circulation gap formed by the connecting portion and the baffle.

7. The burner according to claim 4, wherein The baffle and the connecting portion are integrally formed.

8. The burner according to claim 1, wherein The diameter of the vent hole is D, D≤1.5mm; Alternatively, the vent hole has a diameter D, 1 mm ≤ D ≤ 1.5 mm.

9. The burner according to claim 8, characterized in that The cup body and the base of the burner are designed to be separate bodies, and the burner further comprises a heat insulating pad, which is arranged between the cup body and the base.

10. A stove, characterized in that: It comprises the burner according to any one of claims 1 to 9.

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