Combustor and gas cooker comprising same
By designing multiple gas channels and guide arms in the burner, the problem of weak flame in the inner fire cover is solved, achieving a more uniform gas distribution and a more stable flame.
Patent Information
- Application Number
- CN202420546040.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The flame of the internal fire cover of the existing burner is prone to soft and long state, and the uneven gas distribution leads to unstable flames.
A burner is designed, and the gas mixing base has a first gas passage and a second gas passage that are not connected to each other. The inner fire cover obtains gas through the main vent tube and the inner vent tube at the same time, and a flow guide arm is provided in the gas mixing base to improve gas distribution.
By increasing gas supply and optimizing gas distribution, the flame state of the inner fire cover is improved, the problem of excessive soft or too long flame is avoided, and the overall heating uniformity of the burner is improved.
Smart Images
Figure CN222543830U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a burner and a gas cooker comprising the burner. Background Art
[0002] Currently common burners include a base, an air mixing chamber, an outer ejector tube, an inner ejector tube, an outer fire cover and an inner fire cover. The outer fire cover and the inner fire cover are both arranged on the air mixing chamber. The air mixing chamber is arranged on the base and forms an outer ring upper gas channel in the outer area and an inner ring upper gas channel in the central area. The inner ejector tube and the outer ejector tube are respectively connected with the inner ring upper gas channel and the outer ring upper gas channel and provide fuel gas.
[0003] Due to the limitation of the size of the burner, the air channel on the inner ring is narrower, and the total resistance loss of its air flow path is greater than that of the outer ring, resulting in a smaller air flow rate allocated to this path, and the flame of the inner fire cover tends to be soft and long; at the same time, after the gas and air enter the mixing chamber for mixing, they are provided in large quantities to the main fire holes on the outer fire cover, while the fire holes on the inner fire cover obtain relatively less mixed gas, which further leads to the problem of poor flame state of the inner fire cover. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the problem that the flame of the inner fire cover of the stove burner in the prior art is soft and long and in a poor state, and to provide a burner and a gas stove including the same.
[0005] The utility model solves the above technical problems through the following technical solutions:
[0006] A burner comprises a gas mixing base, a main ejector pipe, an inner ejector pipe, an outer fire cover and an inner fire cover, wherein the gas mixing base has a first gas channel and a second gas channel which are not connected to each other, the outer fire cover and the inner fire cover are both arranged on the gas mixing base, and the inner fire cover is on the first gas channel and the second gas channel, the outer fire cover is located on the first gas channel, the inner fire cover has a plurality of first fire holes and a plurality of second fire holes, the outer fire cover has a plurality of outer ring fire holes, the main ejector pipe and the inner ejector pipe correspond to the first gas channel and the second gas channel respectively, so that the main ejector pipe, the first gas channel and the plurality of the first fire holes are connected, the main ejector pipe, the first gas channel and the plurality of the outer ring fire holes are connected, and the inner ejector pipe, the second gas channel and the plurality of the second fire holes are connected.
[0007] In this case, the gas for the multiple first fire holes and multiple second fire holes of the inner fire cover comes from the first gas channel and the second gas channel respectively. When the main ejector pipe is opened, gas is simultaneously supplied to the first fire holes of the inner fire cover and the second fire holes of the outer fire cover through the first gas channel; when the inner ejector pipe is opened, gas is supplied to the second fire holes of the inner fire cover through the second gas channel. This means that the inner fire cover can be supplied with gas from the main ejector pipe and the inner ejector pipe at the same time, can obtain more gas, the fire holes of the inner fire cover can burn better, and the flame state of the inner fire cover can be improved.
[0008] Preferably, the gas mixing base has at least one guide arm, which is located in the first gas channel and divides the space in the first gas channel into an outer ring gas area and an inner ring gas area, the outer ring gas area is connected to the outer ring fire hole, and the inner ring gas area is connected to the first fire hole.
[0009] In this solution, the guide arm guides the gas in the first gas channel into the gas area on the inner ring, and supplies gas to the first fire hole of the inner fire cover, thereby improving the situation in which the gas channel on the inner ring is narrow due to the size limitation of the burner and the total resistance loss of the air flow path is large, resulting in a smaller gas flow rate distributed in the gas channel on the inner ring, and improving the state in which the inner ring flame is prone to being soft and long.
[0010] Preferably, there are a plurality of the outer ring upper air regions, and the plurality of the outer ring upper air regions surround the inner ring upper air region.
[0011] In this scheme, multiple outer ring gas upper areas are distributed around the inner ring gas upper area, which means that the outer ring gas upper area can evenly obtain the fuel gas input by the main injector pipe, so that the main fire holes of the outer ring fire cover can obtain the fuel gas basically synchronized in time and basically the same in quantity, so that the flames of the outer ring fire cover can be consistent in length and burn evenly.
[0012] Preferably, the guide arm is extended from the inner ring upper air region and arranged between two adjacent outer ring upper air regions.
[0013] In this solution, the extension direction of the guide arm is from the inner ring upper gas area to between the two adjacent outer ring upper gas areas, so that the gas in the outer ring upper gas area can enter the inner ring upper gas area along the guide arm more, which can enhance the strength of the inner ring fire hole and improve the flame state, thereby improving the overall heating uniformity of the burner.
[0014] Preferably, the number of the guide arms is two, the number of the outer ring upper air areas is three, the three outer ring upper air areas are respectively located on the left and right sides of the inner ring upper air area and the front end air inlet area, and the two guide arms are located on both sides of the outer ring upper air area at the front end.
[0015] In this solution, two guide arms located on both sides of the front outer ring upper gas area divide the outer ring upper gas area into three areas, which are located on the left and right sides of the inner ring upper gas area and the front air inlet area respectively. The two guide arms are used to more evenly divide the outer ring upper gas area surrounding the inner ring upper gas area into three areas. The cross-sectional areas of the left and right outer ring upper gas areas are similar, which is more conducive to the even distribution of the gas in the first gas channel in each area, so that the multiple fire holes of the outer ring fire cover can obtain equal amounts of gas and burn evenly.
[0016] Preferably, the two guide arms are trumpet-shaped, the small ports of the two guide arms face the air region on the inner ring, and the large ports of the two guide arms face the air region on the outer ring at the front end.
[0017] In this solution, two guide arms are arranged in a trumpet shape, with the small port facing the inner ring upper gas area and the large port facing the outer ring upper gas area at the front end. On the one hand, the gas in the first gas channel is guided into the inner ring upper gas area, and on the other hand, the gas flow direction is from the large port to the small port, which also enhances the induced effect, making it less likely for soft and weak flames to appear at the fire outlet of the inner ring fire cover, thereby improving the inner ring flame.
[0018] Preferably, the angle between the two guide arms is 30° to 60°.
[0019] In this solution, the angle between the guide arms can be adjusted. An acute angle of 30° to 60° is more conducive to guiding the gas in the upper gas area of the outer ring to the upper gas area of the inner ring, and the airflow intensity is greater, making the fire of the inner fire cover stable.
[0020] Preferably, the guide arm comprises a first guide arm and a second guide arm, the first guide arm is longer than the second guide arm, and the first guide arm is close to the main ejector pipe.
[0021] In this scheme, there are two guide arms of different lengths, and the longer first guide arm is closer to the main ejector pipe than the shorter second guide arm. The gas in the upper gas area of the outer ring closer to the main ejector pipe is usually more abundant, and the gas is relatively weaker in the position away from the main ejector pipe. The first guide arm closer to the main ejector pipe is longer, which is conducive to guiding more gas into the upper gas area of the inner ring. In the outer ring area where the gas volume of the second guide arm relatively far from the main ejector pipe is weaker, the shorter guide arm diverts slightly less gas. This setting is more conducive to making the gas in various places in the upper gas area of the outer ring more uniform, avoiding the problem of uneven flame state of long and short fires on the outer ring fire cover.
[0022] Preferably, the bottom of the gas mixing base has a gas inlet corresponding to and connected with the main ejector pipe, and the inner wall surface of the gas mixing base has a concave arc-shaped buffer zone, and the arc-shaped buffer zone is located above the gas inlet.
[0023] In the present scheme, since the bottom of the gas mixing base has a gas inlet connected to the main ejector pipe, the upper outer ring gas area is more likely to obtain a large amount of gas than other areas, which will cause uneven gas in each outer ring gas area. An arc-shaped buffer zone with an inward concave shape is provided above the gas inlet on the inner wall surface of the gas mixing base, which can reduce the excessive concentration of airflow in the outer ring gas area and guide the airflow to other areas, which is beneficial for each outer ring gas area to obtain an equal amount of gas and avoid uneven ignition due to different amounts of gas obtained by the outer ring fire holes of the outer fire cover.
[0024] A gas cooker comprises the burner as described above.
[0025] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiment of the utility model.
[0026] The positive and progressive effects of the utility model are:
[0027] The burner of the utility model and the gas cooker including the same are provided with a main ejector pipe connected to a first gas channel, an inner ejector pipe connected to a second gas channel, the first gas channel is partially connected to a fire hole of an outer fire cover, and partially connected to a first fire hole of an inner fire cover, and the second gas channel is connected to a second fire hole of the inner fire cover. The inner fire cover can obtain more gas from the main ejector pipe and the inner ejector pipe, the fire hole of the inner fire cover can burn better, the flame state of the inner fire cover is improved, and a soft and long flame is avoided from appearing on the inner fire cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic structural diagram of a burner according to an embodiment of the utility model.
[0029] Figure 2 This is a schematic diagram of the exploded structure of a burner according to an embodiment of the utility model.
[0030] Figure 3 This is a schematic diagram of the gas flow at the bottom of the gas mixing base according to an embodiment of the utility model.
[0031] Figure 4 This is a schematic diagram of the bottom structure of the gas mixing base according to an embodiment of the utility model.
[0032] Figure 5 This is a schematic diagram of the internal structure of the bottom of the gas mixing base according to an embodiment of the present utility model.
[0033] Figure 6 The figure is a schematic diagram of the internal structure of the inner fire cover according to an embodiment of the utility model.
[0034] Description of reference numerals:
[0035] 100 inner fire cover
[0036] 101 First Fire Hole
[0037] 102 Second Fire Hole
[0038] 200 external fire cover
[0039] 201 outer ring fire hole
[0040] 300 Mixing Base
[0041] 41 First Gas Channel
[0042] 411 Inner Ring Air Area
[0043] 412 Outer Ring Air Area
[0044] 413 arc buffer zone
[0045] 42 Second gas channel
[0046] 431 first guide arm
[0047] 432 Second guide arm
[0048] 500 main ejector tube
[0049] 600mm inner ejector tube DETAILED DESCRIPTION
[0050] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the following embodiments.
[0051] like Figure 1-Figure 6 As shown, this embodiment discloses a burner, which includes a gas mixing base 300, a main ejector pipe 500, an inner ejector pipe 600, an outer fire cover 200 and an inner fire cover 100, the gas mixing base 300 has a first gas channel 41 and a second gas channel 42 that are not connected to each other, the outer fire cover 200 and the inner fire cover 100 are both arranged on the gas mixing base 300, and the inner fire cover 100 is located on the first gas channel 41 and the second gas channel 42, the outer fire cover 200 is located on the first gas channel 41, and the inner fire cover 100 has There are multiple first fire holes 101 and multiple second fire holes 102, and the outer fire cover 200 has multiple outer ring fire holes 201. The main ejector pipe 500 and the inner ejector pipe 600 correspond to the first gas channel 41 and the second gas channel 42 respectively, so that the main ejector pipe 500, the first gas channel 41 and the multiple first fire holes 101 are connected, the main ejector pipe 500, the first gas channel 41 and the multiple outer ring fire holes 201 are connected, and the inner ejector pipe 600, the second gas channel 42 and the multiple second fire holes 102 are connected.
[0052] In this case, the inner fire cover 100 provided on the gas mixing base 300 is located above the inner ring upper gas area 411 of the first gas channel 41 and the second gas channel 42. The inner fire cover 100 has at least two circles of fire holes on its outer periphery. The multiple upper first fire holes 101 are supplied with gas from the inner ring upper gas area 411 of the first gas channel 41 and are connected to the main ejector pipe 500. The multiple lower second fire holes 102 are supplied with gas from the second gas channel 42 and are connected to the inner ejector pipe 600. The outer fire cover 200, which is also provided on the gas mixing base 300, is located in the outer ring upper gas area 412 of the first gas channel 41. The multiple outer ring fire holes 201 on the outer fire cover 200 are supplied with gas from the outer ring upper gas area 412 of the first gas channel 41 and are connected to the main ejector pipe 500. When the main ejector tube 500 and the inner ejector tube 600 are opened, the fire holes of the inner fire cover 100 in this case obtain more fuel gas, so the first fire hole 101 and the second fire hole 102 burn fully, and the flame state is stable and good.
[0053] like Figure 3 , Figure 4 and Figure 6 As shown, the gas mixing base 300 has at least one guide arm, which is located in the first gas channel 41 and divides the space in the first gas channel 41 into an outer ring upper gas area 412 and an inner ring upper gas area 411. The outer ring upper gas area 412 is connected to multiple outer ring fire holes 201, and the inner ring upper gas area 411 is connected to multiple first fire holes 101.
[0054] The guide arm located in the first gas channel 41 of this embodiment divides the space in the first gas channel 41 to form an outer ring upper gas area 412 and an inner ring upper gas area 411, wherein the outer ring upper gas area 412 supplies gas to multiple outer ring fire holes 201, and the inner ring upper gas area 411 supplies gas to multiple first fire holes 101 on the inner fire cover 100. The guide arm guides the gas in the first gas channel 41 into the inner ring upper gas area 411, and supplies gas to the first fire holes 101 of the inner fire cover 100, thereby improving the situation that the inner ring upper gas channel is narrow due to the size limitation of the burner, the total resistance loss of the gas flow path is large, and the gas flow rate distributed in the inner ring upper gas channel path is smaller, and the inner ring flame is prone to appear soft and long state.
[0055] like Figure 3 and Figure 4 As shown, there are multiple outer ring upper air regions 412 , and the multiple outer ring upper air regions 412 surround the inner ring upper air region 411 .
[0056] Specifically, the gas mixing base 300 of the present embodiment is provided with a first gas channel 41 which is not connected to the second gas channel 42, and the first gas channel 41 includes an outer ring upper gas area 412 and an inner ring upper gas area 411, and a plurality of outer ring upper gas areas 412 are distributed around the inner ring upper gas area 411, and the first gas channel 41 is connected to the main injector pipe 500. When the gas supply of the main injector pipe 500 is opened, the gas obtained by each outer ring upper gas area 412 is basically synchronized, and the amount of gas is basically the same, which is evenly provided to the outer ring fire holes 201 of the outer fire cover 200 for combustion. The flame of the outer fire cover 200 is consistent in length, and the fire is relatively uniform and stable.
[0057] like Figure 3 As shown, the guide arm extends from the inner ring upper air region 411 and extends between two adjacent outer ring upper air regions 412 .
[0058] Specifically, the guide arm of this embodiment extends from the inner ring upper gas area 411 along the two adjacent outer ring upper gas areas 412 to expand in a straight line, the purpose is to divert more gas from the outer ring upper gas area 412 to enter the inner ring upper gas area 411 along the guide arm, and the inner ring upper gas area 411 provides more gas to the first fire hole 101 of the inner fire cover 100, thereby improving the gas intensity of the inner ring fire hole, the flame state is better, and the overall heating of the burner is more uniform. In other embodiments, the guide arm can also be selected to be non-straight, such as a broken line or an arc line; the guide arm can be selected to be one or more.
[0059] like Figure 3 and Figure 4 As shown, there are two guide arms and three outer ring upper air areas 412. The three outer ring upper air areas 412 are respectively located on the left and right sides of the inner ring upper air area 411 and the front end air inlet area, and the two guide arms are located on both sides of the outer ring upper air area 412 at the front end.
[0060] In this embodiment, the inner ring gas region 411 and the second gas channel 42 are in a circle at the center of the gas mixing base 300 body. The second gas channel 42 is located in the crescent shape at the rear end of the circle, half surrounding the inner ring gas region 411 in the middle. The outer end of the inner ring gas region 411 is open, and the two guide arms are respectively located on the extension lines on both sides of the port. Thus, the two guide arms divide the outer ring gas region 412 into three areas, which are respectively located on the left and right sides of the inner ring gas region 411 and the front air inlet area. The cross-sectional areas of the outer ring gas region 412 on the left and right sides are basically the same. Figure 3 As shown, after the gas enters the gas mixing base 300, one path of gas is divided into three paths during the process of moving forward, and respectively enters the inner ring upper gas area 411 and the outer ring upper gas areas 412 on its left and right sides. Therefore, the gas in the first gas channel 41 can be evenly distributed in each outer ring upper gas area 412, and the multiple outer ring fire holes 201 of the outer fire cover 200 can obtain a relatively equal amount of gas and burn evenly.
[0061] like Figure 4 As shown, the two guide arms are in a trumpet shape, the small ports of the two guide arms face the inner ring upper air region 411 , and the large ports of the two guide arms face the outer ring upper air region 412 .
[0062] Specifically, the two guide arms of the present embodiment are arranged in a trumpet shape, with the small port facing the inner ring upper gas area 411, and the large port facing the outer ring upper gas area 412 at the front end. The small inner port and the large outer port guide the gas in the first gas channel 41 into the inner ring upper gas area 411, and at the same time, enhance the injection of gas from the outside to the inside, thereby improving the ignition intensity of the inner fire cover 100, improving the inner ring flame, and avoiding the occurrence of soft and weak flames.
[0063] like Figure 4 As shown, the included angle between the two guide arms is 30° to 60°.
[0064] The angle between the two guide arms of this embodiment is an acute angle, which can be any embodiment of an angle of 30° to 60°. The gas in the outer ring upper gas area 412 is guided into the inner ring upper gas area 411 along the gradually narrowing guide channel, and the air flow intensity increases sharply, so that the first fire hole 101 set on the inner fire cover 100 can quickly obtain the gas, avoiding the appearance of soft and weak flames.
[0065] like Figure 4 As shown, the guide arm includes a first guide arm 431 and a second guide arm 432 . The length of the first guide arm 431 is greater than that of the second guide arm 432 , and the first guide arm 431 is close to the main ejector pipe 500 .
[0066] Specifically, the two guide arms of this embodiment are arranged at equal angles on the central section line of the gas mixing base 300. Figure 4 The two sides of the dotted line are the first guide arm 431 and the second guide arm 432, respectively. The length of the first guide arm 431 is greater than that of the second guide arm 432, and it is closer to the main ejector pipe 500 than the second guide arm 432. The outer ring upper gas area 412 close to the main ejector pipe 500 obtains the gas before the outer ring upper gas area 412 far from the main ejector pipe 500, and the gas loss is small. By setting a longer first guide arm 431, more gas is diverted to the inner ring upper gas area 411; and the outer ring upper gas area 412 far from the main ejector pipe 500 is diverted by the relatively short second guide arm 432 to the inner ring upper gas area 411, so that the gas of the outer ring upper gas area 412 on the left and right sides of the inner ring upper gas area 411 is equivalent. The arrangement of this embodiment can make the gas of the outer ring upper gas area 412 more uniform, the outer fire cover 200 avoids the situation of long and short fire, and the outer ring flame is more uniform.
[0067] like Figure 5As shown, the bottom of the gas mixing base 300 of this embodiment 1 has a gas inlet corresponding to the main ejector pipe 500, and the inner wall surface of the gas mixing base 300 has a concave arc buffer zone 413, which is located above the gas inlet.
[0068] Specifically, the main ejector pipe 500 of the present embodiment is connected to the first gas channel 41 at the bottom of the gas mixing base 300. The outer ring gas area 412 above the gas of the first gas channel 41 at the bottom of the gas mixing base 300 is more likely to obtain a large amount of gas than other outer ring gas areas 412. That is to say, the gas in the outer ring gas areas 412 on the left and right sides of the inner ring gas area 411 is not as sufficient as the outer ring gas area 412 at the front air inlet of the inner ring gas area 411. In order to divert the gas to other areas as quickly as possible, the present embodiment is provided with an inwardly concave arc-shaped buffer zone 413 above the gas inlet, which guides the gas at the gas inlet to be diverted to the outer ring gas areas 412 on the left and right ends after being blocked at the arc-shaped buffer zone 413, so as to avoid a large amount of gas being retained in the outer ring gas area 412 at the front air inlet of the inner ring gas area 411. After the arc-shaped buffer zone 413 is reconfigured, the gas in the outer ring upper gas area 412 is more uniform, and the outer ring fire holes 201 of the outer fire cover 200 emit fire evenly and the flame is stable.
[0069] The utility model also provides a gas cooker, which comprises the burner mentioned above.
[0070] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.
Claims
1. A burner, characterized in that: It includes a gas mixing base, a main ejector pipe, an inner ejector pipe, an outer fire cover and an inner fire cover. The gas mixing base is provided with a first gas channel and a second gas channel which are not connected to each other. The outer fire cover and the inner fire cover are both arranged on the gas mixing base, and the inner fire cover is located on the first gas channel and the second gas channel. The outer fire cover is located on the first gas channel. The inner fire cover is provided with a plurality of first fire holes and a plurality of second fire holes. The outer fire cover is provided with a plurality of outer ring fire holes. The main ejector pipe and the inner ejector pipe correspond to the first gas channel and the second gas channel respectively, so that the main ejector pipe, the first gas channel and the plurality of the first fire holes are connected, the main ejector pipe, the first gas channel and the plurality of the outer ring fire holes are connected, and the inner ejector pipe, the second gas channel and the plurality of the second fire holes are connected.
2. The burner according to claim 1, characterized in that The gas mixing base is provided with at least one guide arm, which is located in the first gas channel and divides the space in the first gas channel into an outer ring upper gas area and an inner ring upper gas area, the outer ring upper gas area is connected to the plurality of outer ring fire holes, and the inner ring upper gas area is connected to the plurality of first fire holes.
3. The burner according to claim 2, characterized in that There are multiple outer ring upper air regions, and the multiple outer ring upper air regions surround the inner ring upper air region.
4. The burner according to claim 2, characterized in that The guide arm is extended from the inner ring upper air region and arranged between two adjacent outer ring upper air regions.
5. The burner according to claim 2, characterized in that There are two guide arms and three outer ring upper air areas. The three outer ring upper air areas are respectively located on the left and right sides of the inner ring upper air area and the front end air inlet area. The two guide arms are located on both sides of the outer ring upper air area at the front end.
6. The burner according to claim 5, characterized in that The two guide arms are in a trumpet shape, the small ports of the two guide arms face the upper air region of the inner ring, and the large ports of the two guide arms face the upper air region of the outer ring at the front end.
7. The burner according to claim 5, characterized in that The included angle between the two guide arms is 30° to 60°.
8. The burner according to claim 5, characterized in that The guide arm includes a first guide arm and a second guide arm. The length of the first guide arm is greater than that of the second guide arm, and the first guide arm is close to the main ejector pipe.
9. The burner according to claim 1, characterized in that The bottom of the gas mixing base is provided with a gas inlet corresponding to and connected with the main ejector pipe, and the inner wall surface of the gas mixing base is provided with an inwardly concave arc-shaped buffer zone, and the arc-shaped buffer zone is located above the gas inlet.
10. A gas cooker, characterized in that: The gas cooker comprises the burner according to any one of claims 1-9.