Gas distribution disc and combustor
By designing a gas split disc in the burner to introduce external air, the problem of insufficient secondary air replenishment of the three-ring fire burner is solved, more sufficient gas combustion is achieved and harmful gas generation is reduced, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202322862493.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-24
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-10-24
AI Technical Summary
The secondary air replenishment of existing three-ring fire burners leads to insufficient combustion of gas, increasing the production of harmful gases such as CO.
An air separation disk was designed to guide external air into the flame by setting a central groove and multiple air replenishment channels at its center position to ensure sufficient secondary air replenishment, and optimize air flow through specific channel structures and fire cover designs. Mix with gas.
It improves the adequacy of gas combustion, reduces the production of harmful gases, extends the service life of the gas stove, and avoids the accumulation of impurities and odors in the furnace head.
Smart Images
Figure CN222210399U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas stoves, in particular to a gas distribution plate and a burner. Background Art
[0002] At present, the three-ring fire burner has a trend of developing towards miniaturization. The flame of the small three-ring fire burner heats the bottom of the pot more concentratedly and has higher thermal efficiency, so it is more and more popular. For the three-ring fire burner with lower air intake, it generally uses the air in the bottom shell of the gas stove as secondary air supplement. For example, the Chinese utility model patent with announcement number CN219828826U discloses a burner head structure and a gas stove, which is provided with an air duct on the burner head to supplement the secondary air to the inner ring flame, and the burner head is arranged in the bottom shell of the gas stove. The air duct can only supplement the air in the bottom shell as secondary air. The air circulation in the bottom shell is poor. After a period of use, the secondary supplemented air will decrease, resulting in incomplete combustion of the gas and increased production of harmful gases such as CO. Utility Model Content
[0003] The utility model provides a gas distribution plate and a burner, which can supplement secondary air to the inner ring flame through the gas distribution plate to ensure more complete combustion of the gas.
[0004] In order to solve the above problems, the utility model adopts the following technical solutions:
[0005] According to the first aspect of the utility model, an embodiment of the utility model provides an air distribution plate, wherein a center groove is arranged on the top surface of the center position of the air distribution plate, and a plurality of air replenishment channels are also arranged on the air distribution plate, and the air replenishment channels are connected to the center groove.
[0006] In some embodiments, the air distribution plate is provided with an air replenishment opening penetrating therethrough, and one end of the air replenishment channel is communicated with the air replenishment opening, and the other end is communicated with the central groove.
[0007] In some embodiments, the bottom wall of the air supplement channel is inclined, and the height of the bottom wall of the air supplement channel gradually increases in a direction approaching the central groove.
[0008] In some embodiments, the width of the air supplement channel gradually decreases in a direction approaching the central groove.
[0009] In some embodiments, the air supplement channels are provided in plurality and are evenly distributed around the central groove.
[0010] In some embodiments, between two adjacent air supplement channels, a first air passage and a second air passage are sequentially arranged from the central groove outward.
[0011] According to the second aspect of the utility model, an embodiment of the utility model provides a burner, comprising a burner head, a fire cover and the gas distribution plate described in any one of the first aspect above, wherein the gas distribution plate is fixed on the burner head, and the fire cover is mounted on the gas distribution plate; the fire cover comprises a central tube, a central fire cover and an inner fire cover located outside the central tube and arranged in a ring shape, a central fire distribution groove is arranged between the inner fire cover and the central tube, the central fire cover is mounted on the central fire distribution groove, and the central fire cover is provided with a plurality of inner ring fire holes connected to the central fire distribution groove; the central tube is butt-jointed with the central groove; a first mixing chamber is arranged on the burner head, and the gas distribution plate is provided with a first gas passage running through it, and the first mixing chamber, the first gas passage and the central fire distribution groove are connected in sequence.
[0012] In some embodiments, the fire cover also includes an outer fire cover located outside the inner fire cover and arranged in a ring shape, the outer fire cover and the gas distribution plate enclose an outer fire distribution cavity, the outer fire cover is provided with a plurality of outer ring fire holes connected to the outer fire distribution cavity; the inner fire cover is provided with an inner fire distribution groove, and the surface of the inner fire cover is provided with a middle ring fire hole connected to the inner fire distribution groove; a second mixing chamber is also provided on the burner head, and the gas distribution plate is provided with a second air passage running through itself, the second mixing chamber, the second air passage and the inner fire distribution groove are connected in sequence; the outer fire distribution cavity is connected to the second air passage.
[0013] In some embodiments, the gas distribution plate is provided with a connecting channel, both ends of which are respectively connected to the external fire distribution cavity and the second air passage, and a connecting column for connecting the gas distribution plate and the fire cover is provided in the connecting channel.
[0014] The utility model has at least the following beneficial effects: the utility model is provided with a plurality of air replenishment channels on the gas distribution plate, and the air replenishment channels are connected with the central groove at the central position of the gas distribution plate. Since the gas distribution plate is usually arranged above the bottom shell of the gas stove, the air replenishment channels transport the air outside the bottom shell to the central groove, and then the secondary air is replenished from the central groove to the inner ring flame. Since the air outside the bottom shell has better fluidity, the secondary replenished air will not be reduced, thereby ensuring more complete combustion of the gas and reducing the generation of harmful gases such as CO. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic structural diagram of a gas distribution plate according to an embodiment of the utility model;
[0016] Figure 2 A cross-sectional schematic diagram of a gas distribution plate according to an embodiment of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of a burner according to an embodiment of the utility model;
[0018] Figure 4This is a schematic structural diagram of a burner according to an embodiment of the utility model after the central fire cover is removed;
[0019] Figure 5 This is an exploded schematic diagram of a burner according to an embodiment of the utility model;
[0020] Figure 6 A cross-sectional schematic diagram of a burner according to an embodiment of the utility model;
[0021] Figure 7 This is a schematic cross-sectional view of a burner according to an embodiment of the utility model in another cross-sectional view.
[0022] Wherein, the accompanying drawings are marked as follows:
[0023] The air distribution plate 100, the central groove 110, the air supplement channel 120, the air supplement opening 130, the first air passage 141, the second air passage 142, the connecting channel 150, and the connecting column 160;
[0024] Burner head 200, first mixing chamber 210, second mixing chamber 220;
[0025] Fire cover 300, central tube 310, inner fire cover 320, inner fire distribution groove 321, central ring fire hole 322, central fire cover 330, central fire distribution groove 331, inner ring fire hole 332, outer fire cover 340, outer fire distribution cavity 341, outer ring fire hole 342, inner ring supplementary opening 350. DETAILED DESCRIPTION
[0026] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.
[0027] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0028] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.
[0029] The embodiment of the utility model provides a gas distribution plate, such as Figure 1 and Figure 2 As shown, a center groove 110 is provided on the top surface of the center position of the gas distribution plate 100. The gas distribution plate 100 is usually in the shape of a disc, and the center groove 110 can be located at the center position of the gas distribution plate 100. A plurality of air replenishment channels 120 are also provided on the gas distribution plate 100. The air replenishment channels 120 are connected with the center groove 110. The air replenishment channels 120 can guide the air near the gas distribution plate 100 to flow toward the center groove 110. The air in the center groove 110 can be transported to the inner ring flame on the fire cover to replenish the inner ring flame with secondary air. Since the gas distribution plate 100 is usually arranged above the bottom shell of the gas stove, the air replenishment channel 120 is used to replenish the air outside the bottom shell with secondary air to the inner ring flame. The fluidity of the air outside the bottom shell is better, and the secondary replenished air will not be reduced, which ensures that the gas combustion is more complete and reduces the generation of harmful gases such as CO. At the same time, the air supply channel 120 is arranged on the air distribution plate 100 rather than on the burner head. External dust and other impurities will not enter the burner head through the air supply channel 120, so the burner head will not accumulate dust, grease and other impurities, and the generation of odor is also reduced.
[0030] In some embodiments, the air distribution plate 100 is provided with an air supply opening 130 running through it, and the air supply opening 130 is used to supply secondary air to the middle ring flame on the fire cover. One end of the air supply channel 120 is connected to the air supply opening 130, and the other end is connected to the center groove 110. Therefore, the air supply channel 120 and the air supply opening 130 share the initial inlet of the secondary air, so that the structure of the air supply channel 120 and the air supply opening 130 is more compact, which is convenient for reserving more space to form a fire distribution cavity.
[0031] Furthermore, the bottom wall of the air supplement channel 120 is inclined, and the height of the bottom wall of the air supplement channel 120 gradually increases in the direction close to the central groove 110, specifically along the air flow direction in the air supplement channel 120 and pointing to the central groove 110. Since the secondary supplement air flows upward under the chimney effect, this embodiment can guide the airflow to gradually move toward the central groove 110 along the bottom wall of the air supplement channel 120, and then flow toward the fire cover, which has a better guiding effect on the secondary air and can speed up the supplement of the secondary air.
[0032] In some embodiments, the width of the air supplement channel 120 gradually decreases in the direction approaching the center groove 110, that is, along the direction of air flow in the air supplement channel 120 and pointing to the center groove 110. This makes the width of the entrance of the air supplement channel 120, that is, the end away from the center groove 110, larger, and more secondary air can be introduced to increase the amount of secondary air supplement.
[0033] In some embodiments, a plurality of air supplementary channels 120 are provided and evenly distributed around the central groove 110 , so that the secondary air can relatively evenly enter the central groove 110 and then be relatively evenly delivered to the fire cover to make the inner ring flame more even.
[0034] Furthermore, between two adjacent air supplementary channels 120, a first air passage 141 and a second air passage 142 are sequentially arranged from the central groove 110 outwards, and the first air passage 141 and the second air passage 142 are both for the mixed gas of fuel gas and air to pass through, so that the mixed gas in the burner head is transported to the fire cover after passing through the first air passage 141 and the second air passage 142. Among them, the first air passage 141 is for the mixed gas of the inner ring flame to pass through, and the second air passage 142 is for the mixed gas of the middle ring flame and the outer ring flame to pass through.
[0035] The embodiment of the utility model also provides a burner, such as Figure 3-7 As shown, it includes a burner head 200, a fire cover 300 and an air distribution plate 100 of any of the above embodiments. The specific description of the air distribution plate 100 can refer to the above embodiments and will not be repeated here.
[0036] The gas distribution plate 100 is fixed on the burner head 200, and the fire cover 300 is covered on the gas distribution plate 100. The fire cover 300 includes a central tube 310, a central fire cover 330, and an inner fire cover 320 located outside the central tube 310 and arranged in an annular shape. A central fire distribution groove 331 is arranged between the inner fire cover 320 and the central tube 310, and the central fire distribution groove 331 is arranged around the central tube 310 and can be annular. The central fire cover 330 is covered on the central fire distribution groove 331 and covers the central fire distribution cover 331, and the central fire cover 330 is provided with a plurality of inner ring fire holes 332 connected with the central fire distribution groove 331. The central tube 310 is docked with the central groove 110, and the central fire cover 330 is annular, and its central position does not block the central tube 310. Specifically, the inner ring structure of the central fire cover 330 can be placed on the top surface of the central tube 110, and the outer ring structure of the central fire cover 330 can be placed on the inner fire cover 320. The burner head 200 is provided with a first mixing chamber 210 , and the gas distribution plate 100 is provided with a first gas passage 141 penetrating therethrough. The first mixing chamber 210 , the first gas passage 141 and the central fire distribution groove 331 are connected in sequence.
[0037] The gas in the first mixing chamber 210 can enter the central fire distribution groove 331 through the first gas passage 141, and then be ejected through the inner ring fire hole 332 to form an inner ring flame on the central fire cover 330. Under the action of the chimney effect, the outside air flows to the top of the central fire cover 330 through the air supplementary channel 120, the central groove 110 and the central tube 310 in sequence to supplement the secondary air to the inner ring flame. Since the gas distribution plate 100 is usually arranged above the bottom shell of the gas stove, the air supplementary channel 120 is used to supplement the air outside the bottom shell to the inner ring flame for secondary air. The fluidity of the air outside the bottom shell is better, and the secondary supplementary air will not be reduced, which ensures that the gas combustion is more complete and reduces the generation of harmful gases such as CO. At the same time, the air supplementary channel 120 is arranged on the gas distribution plate 100, not on the burner 200, so that foreign matter such as dust from the outside will not enter the burner 200 through the air supplementary channel 120, and the burner 200 will not accumulate foreign matter such as dust, grease, etc., and the generation of odor is also reduced.
[0038] In some embodiments, the fire cover 300 further includes an outer fire cover 340 located outside the inner fire cover 320 and arranged in an annular shape. The outer fire cover 340 and the gas distribution plate 100 enclose an outer fire distribution cavity 341. The outer fire cover 340 is provided with a plurality of outer ring fire holes 342 connected to the outer fire distribution cavity 341. The inner fire cover 320 is provided with an inner fire distribution groove 321, and the surface of the inner fire cover 320 is provided with a middle ring fire hole 322 connected to the inner fire distribution groove 321. The burner head 200 is also provided with a second mixing cavity 220, and the gas distribution plate 100 is provided with a second gas passage 142 running through it. The second mixing cavity 220, the second gas passage 142 and the inner fire distribution groove 321 are connected in sequence, and the outer fire distribution cavity 341 is connected with the second gas passage 142, thereby, the outer fire distribution cavity 341 is connected with the inner fire distribution groove 321 through the intermediate channel.
[0039] After the gas in the second mixing chamber 220 enters the second gas passage 142, a portion of the gas will enter the inner flame dividing groove 321 and then be ejected from the middle ring flame hole 322, thereby forming a middle ring flame, and another portion of the gas will enter the outer flame dividing chamber 341 and then be ejected from the outer ring flame hole 342, thereby forming an outer ring flame. In this embodiment, a three-ring fire state in which the outer ring flame, the middle ring flame and the inner ring flame coexist is formed.
[0040] Furthermore, the fire cover 300 is also provided with an inner ring supplement opening 350 which runs through it, and the inner ring supplement opening 350 is located between the inner fire cover 320 and the outer fire cover 340, and the inner ring supplement opening 350 is connected with the air supplement opening 130 on the gas distribution plate 100. The air under the gas distribution plate 100 can flow to the inner ring flame through the air supplement opening 130 and the inner ring supplement opening 350 to perform secondary air supplement to the inner ring flame, so that the gas combustion of the inner ring fire is more complete.
[0041] In some embodiments, the central tube 310, the inner fire cover 320 and the outer fire cover 340 can be coaxially arranged to form a structure similar to concentric rings, which facilitates uniform distribution of flames. The central tube 310, the inner fire cover 320 and the outer fire cover 340 can be integrally connected to facilitate the manufacturing and molding of the fire cover 300. At the same time, the central tube 310, the inner fire cover 320 and the outer fire cover 340 maintain a positional relationship with each other, and the fire cover can be accurately docked with the gas distribution plate 100 to cover the gas distribution plate 100, which is also conducive to reducing gas leakage.
[0042] In some embodiments, the gas distribution plate 100 is provided with a connecting channel 150, and the two ends of the connecting channel 150 are respectively connected to the outer fire distribution cavity 341 and the second gas passage 142, and a part of the gas in the second gas passage 142 will enter the outer fire distribution cavity 341 through the connecting channel 150. A connecting column 160 for connecting the gas distribution plate 100 and the fire cover 300 is provided in the connecting channel 150. The connecting column 160 is located in the connecting channel 150, which plays a certain role in blocking the airflow, and can avoid excessive air pressure in the connecting channel 150, so that the air pressure distribution in the outer fire distribution cavity 341 and the inner fire distribution groove 321 is more uniform, and accordingly, the flame will also be more uniform. At the same time, the gas distribution plate 100 and the fire cover 300 can be fixed together by the connecting column 160. Specifically, the bottom of the gas distribution plate 100 is provided with a first threaded hole that penetrates to the top surface of the connecting column 160, and the fire cover 300 is provided with a second threaded hole that docks with the first threaded hole. Screws are screwed into the first threaded hole and the second threaded hole to fix the gas distribution plate 100 and the fire cover 300 together.
[0043] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.
Claims
1. An air distribution plate, wherein a central groove is provided on the top surface of the central position of the air distribution plate, and a plurality of air replenishment channels are also provided on the air distribution plate, and the air replenishment channels are connected to the central groove; the air distribution plate is provided with an air replenishment opening running through the air distribution plate, one end of the air replenishment channel is connected to the air replenishment opening, and the other end is connected to the central groove; a plurality of air replenishment channels are provided and are evenly distributed around the central groove; Features: The bottom wall of the air replenishment channel is arranged at an angle, and the height of the bottom wall of the air replenishment channel gradually increases in the direction approaching the central groove; the width of the air replenishment channel gradually decreases in the direction approaching the central groove; between two adjacent air replenishment channels, a first air passage and a second air passage are arranged in sequence from the central groove to the outside.
2. A burner, Features: It includes a burner head, a fire cover and a gas distribution plate as claimed in claim 1, wherein the gas distribution plate is fixed on the burner head, and the fire cover is arranged on the gas distribution plate; the fire cover includes a central tube, a central fire cover and an inner fire cover located outside the central tube and arranged in a ring shape, a central fire distribution groove is arranged between the inner fire cover and the central tube, the central fire cover is arranged on the central fire distribution groove, and the central fire cover is provided with a plurality of inner ring fire holes connected with the central fire distribution groove; the central tube is connected with the central groove; a first mixing chamber is arranged on the burner head, and the gas distribution plate is provided with a first gas passage running through it, and the first mixing chamber, the first gas passage and the central fire distribution groove are connected in sequence.
3. The burner according to claim 2, Features: The fire cover also includes an outer fire cover located outside the inner fire cover and arranged in a ring shape, the outer fire cover and the gas distribution plate enclose an outer fire distribution cavity, the outer fire cover is provided with a plurality of outer ring fire holes connected with the outer fire distribution cavity; the inner fire cover is provided with an inner fire distribution groove, the surface of the inner fire cover is provided with a middle ring fire hole connected with the inner fire distribution groove; a second mixing chamber is also provided on the burner head, the gas distribution plate is provided with a second air passage running through it, the second mixing chamber, the second air passage and the inner fire distribution groove are connected in sequence; the outer fire distribution cavity is connected with the second air passage.
4. The burner according to claim 3, Features: The gas distribution plate is provided with a connecting channel, the two ends of which are respectively connected with the outer fire distribution cavity and the second air passage, and the connecting channel is provided with a connecting column for connecting the gas distribution plate and the fire cover.