Combustor and gas stove
By setting a second cavity on the burner head and using fluid mechanics to generate forced air, the problem of incomplete fuel combustion is solved, achieving efficient combustion of gas and improved thermal efficiency.
Patent Information
- Application Number
- CN202422472599.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The existing gas stoves have difficulty achieving complete fuel combustion due to the primary and secondary air replenishment processes, and their thermal efficiency needs to be improved.
A second cavity is set on the burner head to form an air passage. The air is actively supplied to the flame root of the inner ring flame hole and/or outer ring flame hole through fluid mechanics, thereby enhancing the combustion efficiency of the gas.
By actively supplementing the blown air, the combustion efficiency of the gas is improved, the thermal efficiency is increased, and the probability of flame lift-off is reduced.
Smart Images
Figure CN223512097U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gas stove technology, and in particular to a burner. Background Technology
[0002] When a gas stove is working, the gas flows out of the nozzle through the gas valve, becoming high-speed, low-pressure gas that enters the burner. Simultaneously, it mixes with some air, known as primary air. This mixture is ejected from the burner holes and ignited by the ignition device to form a flame. During combustion, secondary air is supplied from the environment to ensure complete combustion. Currently, primary and secondary air participate in the reaction through the high-speed jet of the gas and buoyancy. Achieving complete combustion through the replenishment of primary and secondary air is very challenging, and thermal efficiency needs improvement. Utility Model Content
[0003] This application aims to at least partially solve one of the technical problems in the related art. To this end, this application proposes a burner.
[0004] To achieve the above objectives, this application discloses a burner comprising:
[0005] The burner head has a first cavity, a second cavity, and a third cavity;
[0006] A flame cover, disposed on the furnace head, comprises an outer ring flame cover and an inner ring flame cover. The outer ring flame cover has an outer ring flame hole communicating with the first cavity, and the inner ring flame cover has an inner ring flame hole communicating with the third cavity. The outer ring flame cover surrounds the inner ring flame cover, and an exhaust chamber communicating with the second cavity is provided between the outer ring flame cover and the inner ring flame cover.
[0007] Fluid machinery, adapted to supply blown air into the second cavity.
[0008] In some embodiments of this application, the flame cap further includes a flow equalization plate covering the second cavity, the flow equalization plate having flow equalization holes, the second cavity communicating with the flow equalization holes, and the flow equalization holes communicating with the exhaust cavity.
[0009] In some embodiments of this application, one of the outer ring flame cap and the inner ring flame cap is fixed to the flow equalization plate.
[0010] In some embodiments of this application, the burner further includes an ignition needle and a sensing needle, the tip of the ignition needle being located in the exhaust chamber, and the tip of the sensing needle being located in the exhaust chamber.
[0011] In some embodiments of this application, the inner ring flame cap is adapted to block the ignition needle and the sensing needle from top to bottom, and the outer ring flame cap is adapted to block the ignition needle and the sensing needle from the outside to the inside.
[0012] In some embodiments of this application, the inner ring fire cover is further provided with an air passage, which connects the third cavity and the exhaust cavity.
[0013] In some embodiments of this application, there are multiple air passages, which are arranged alternately along the circumference of the inner ring flame cover.
[0014] In some embodiments of this application, the air passage includes interconnected openings and annular seams. There are multiple openings, which are arranged alternately along the circumference of the inner ring flame cap and communicate with the third cavity. The annular seams extend along the circumference of the inner ring flame cap and communicate with the exhaust cavity.
[0015] In some embodiments of this application, the inner ring flame cap has a first inner cover body and a second inner cover body surrounding the first inner cover body. The first inner cover body is an infrared flame cap and is provided with the inner ring flame hole, and the second inner cover body is provided with the air passage.
[0016] In some embodiments of this application, the first inner cover is a porous ceramic plate, and / or the second inner cover is made of metal, and / or the outer ring fire cap is made of metal.
[0017] In some embodiments of this application, the outer ring fire hole is inclined from bottom to top away from the center of the fire cap.
[0018] In some embodiments of this application, the exhaust end of the exhaust chamber is inclined from bottom to top away from the center of the flame cap.
[0019] In some embodiments of this application, the outer ring fire hole is in the shape of an annular slit.
[0020] In some embodiments of this application, the exhaust end of the exhaust chamber is shaped like an annular slit.
[0021] In some embodiments of this application, the fluid machinery and the furnace head are fixedly connected.
[0022] In some embodiments of this application, the first cavity is adapted to receive fuel gas and ejector air, and the third cavity is adapted to receive fuel gas and ejector air.
[0023] A second aspect of this application also discloses a gas stove, which includes the aforementioned burner.
[0024] The technical solution of this application forms a blower channel by setting a second cavity on the burner head. Blower air can enter the second cavity and flow out from the exhaust chamber of the burner cap. The replenishment of blower air is generated by fluid mechanical power, which can more actively replenish the flame root of the inner ring burner hole and / or the outer ring burner hole, so that the combustion of gas is more complete, thereby improving thermal efficiency.
[0025] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.
[0027] Figure 1 Schematic diagram of the burner in some embodiments;
[0028] Figure 2 for Figure 1 Enlarged view marked A in the middle;
[0029] Figure 3 Schematic diagram of the burner in some embodiments (view and perspective) Figure 1 different);
[0030] Figure 4 Exploded views of the burner in some embodiments;
[0031] Figure 5 Cross-sectional views of the burner in some embodiments;
[0032] Figure 6 for Figure 5 Enlarged view marked B in the middle;
[0033] Figure 7 Cross-sectional view of the burner in some embodiments (view and angle) Figure 5 different);
[0034] Figure 8 for Figure 7 Enlarged view marked C;
[0035] Figure 9 These are schematic diagrams of partial burner structures in some embodiments;
[0036] Figure 10 for Figure 9 Enlarged view marked with D in the middle;
[0037] Figure 11 This is a schematic diagram of the inner ring flame cap in some embodiments;
[0038] Figure 12 This is a cross-sectional view of the inner ring fire cover in some embodiments;
[0039] Figure 13 for Figure 12 Enlarged view marked E in the middle.
[0040] Explanation of icon numbers:
[0041] Burner head 1000, first cavity 1100, second cavity 1200, third cavity 1300, burner cap 2000, outer ring burner cap 2100, outer ring burner hole 2110, inner ring burner cap 2200, first inner cover body 2210, inner ring burner hole 2211, second inner cover body 2220, air passage 2230, opening 2231, circumferential seam 2232, flow equalization plate 2300, flow equalization hole 2310, exhaust chamber 2400, exhaust end 2410, fluid machinery 3000, ignition needle 4100, induction needle 4200, first ejector tube 5100, third ejector tube 5300.
[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0045] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0046] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.
[0047] The first aspect of this application proposes a burner, combined with Figures 1 to 6 As shown, in some embodiments, the burner includes a burner head 1000, a flame cap 2000, and a fluid mechanical component 3000. The burner head 1000 has a first cavity 1100, a second cavity 1200, and a third cavity 1300. The flame cap 2000 is mounted on the burner head 1000 and has an outer ring flame cap 2100 and an inner ring flame cap 2200. The outer ring flame cap 2100 is provided with an outer ring flame hole 2110. The outer ring flame hole 2110 and the first cavity 3000 are connected. The cavity 1100 is connected, the inner ring burner cap 2200 is provided with an inner ring burner hole 2211, the inner ring burner hole 2211 is connected with the third cavity 1300, the outer ring burner cap 2100 surrounds the inner ring burner cap 2200, and an exhaust cavity 2400 is formed between the outer ring burner cap 2100 and the inner ring burner cap 2200. The exhaust cavity 2400 is connected with the second cavity 1200, and the fluid machinery 3000 is used to generate blown air, which is introduced into the second cavity 1200. In this embodiment, a second cavity 1200 is provided on the burner head 1000 to form a blower channel. Blower air can enter the second cavity 1200 and flow out from the exhaust cavity 2400 of the burner cap 2000. The supply of blower air is generated by the power generated by the fluid machinery 3000, which can more actively supply the flame root of the outer ring flame hole 2110 and / or the inner ring flame hole 2211, so that the combustion of the gas is more complete, thereby improving the thermal efficiency.
[0048] Specifically, the burner head 1000 can be a one-piece molded structure or formed by connecting separate parts. The burner head 1000 has a first cavity 1100, a second cavity 1200, and a third cavity 1300. Figure 4 As shown in the furnace head 1000, the first cavity 1100 surrounds the second cavity 1200, the second cavity 1200 surrounds the third cavity 1300, the first cavity 1100 and the second cavity 1200 are arranged with the same wall, and the second cavity 1200 and the third cavity 1300 are arranged with the same wall, which helps to reduce the structural complexity of the furnace head 1000.
[0049] The burner cap 2000 comprises an outer ring burner cap 2100 and an inner ring burner cap 2200. The outer ring burner cap 2100 surrounds the inner ring burner cap 2200. When the burner cap 2000 is placed on the furnace head 1000, the outer ring burner cap 2100 encloses the first cavity 1100, and the inner ring burner cap 2200 encloses the third cavity 1300. The outer ring burner cap 2100 is provided with an outer ring flame hole 2110, and the inner ring burner cap 2200 is provided with an inner ring flame hole 2211. The outer ring flame hole 2110 communicates with the first cavity 1100, and the inner ring flame hole 2211 communicates with the third cavity 1300. It can be understood that the outer ring flame hole 2110 and the inner ring flame hole 2211 here should be understood as structures for gas outflow, and their shapes can be perforated, slit-like, etc., for example... Figure 4 and Figure 6 The outer ring flame hole 2110 is slit-shaped, and the inner ring flame hole 2211 is perforated. After the gas is introduced into the first cavity 1100, it is ejected from the outer ring flame hole 2110 and ignited to form a flame. Similarly, after the gas is introduced into the third cavity 1300, it is ejected from the inner ring flame hole 2211 and ignited to form a flame. In order to improve the combustion efficiency of the gas ejected from the burner cap 2000, forced air is supplied by the fluid machinery 3000.
[0050] The fluid machinery 3000 is a machine that uses a fluid as a working medium for energy conversion. For example, the fluid machinery 3000 can be a blower, which can force the supply of forced air. The forced air is introduced into the second cavity 1200. Since the exhaust cavity 2400 is connected to the second cavity 1200, the forced air enters the exhaust cavity 2400 and is then discharged from the exhaust cavity 2400. After being discharged from the exhaust cavity 2400, the forced air can replenish the flame root of the outer ring burner hole 2110 and / or the flame root of the inner ring burner hole 2211, thereby improving the combustion efficiency of the gas ejected from the outer ring burner hole 2110 and / or the inner ring burner hole 2211, thus improving the thermal efficiency. The fluid machinery 3000 can be directly connected and fixed to the burner head 1000, making it easier to cooperate with the second cavity 1200 and directly supply forced air to the second cavity 1200. By placing the second chamber 1200 in the burner head 1000 and the exhaust chamber 2400 between the outer ring burner cap 2100 and the inner ring burner cap 2200, the overall structure of the burner can be simplified and the complexity of the structure can be reduced.
[0051] The following example illustrates the process further: ejecting air and gas from the outer ring burner hole 2110 and ejecting air and gas from the inner ring burner hole 2211.
[0052] The ejected air and fuel gas enter the first cavity 1100, and then are ejected from the first cavity 1100 through the outer ring flame hole 2110, where they are ignited to form a flame. The fuel gas comes from bottled liquefied petroleum gas or pipeline natural gas. The fuel gas is ejected from the nozzle and enters the first cavity 1100. During the fuel gas injection process, air is simultaneously ejected. For air ejection, please refer to relevant technologies. Generally, it is based on the Venturi principle. For example, the burner is equipped with a first ejector tube 5100 connected to the first cavity 1100. The fuel gas is injected into the first ejector tube 5100. During the fuel gas injection process, a negative pressure is formed on the surrounding environment, so that the surrounding air is simultaneously ejected into the first ejector tube 5100 along with the fuel gas injection (this part of the air that enters through the ejection action is the ejected air, which is the primary air). The ejected air and fuel gas enter the first cavity 1100 along with the first ejector tube 5100, mix, and then are ejected from the outer ring flame hole 2110.
[0053] Similarly, the ejected air and combustion gas enter the third chamber 1300, and then are ejected from the third chamber 1300 through the inner ring flame hole 2211, where they are ignited to form a flame. The combustion gas comes from bottled liquefied petroleum gas or pipeline natural gas. The combustion gas is ejected from the nozzle and enters the third chamber 1300. During the combustion gas injection process, air is simultaneously ejected. For air ejection, please refer to relevant technologies. Generally, it is based on the Venturi principle. For example, the burner is equipped with a third ejector tube 5300 connected to the third chamber 1300. The combustion gas is injected into the third ejector tube 5300. During the combustion gas injection process, a negative pressure is formed on the surrounding environment, so that the surrounding air is simultaneously ejected into the third ejector tube 5300 along with the combustion gas injection (this part of the air that enters through the ejection action is the ejected air, which is the primary air). The ejected air and combustion gas enter the third chamber 1300 along with the third ejector tube 5300, mix, and then are ejected from the inner ring flame hole 2211.
[0054] When the ejector air from the outer ring burner 2110 is insufficient to support the combustion of the gas ejected from the outer ring burner 2110, secondary air needs to be replenished. In this embodiment, forced air is provided, which can provide enough oxygen to replenish the flame root formed by the outer ring burner 2110, assisting in the combustion of the gas ejected from the outer ring burner 2110. Compared with the secondary air replenished from the surrounding environment by buoyancy and entrainment, the forced air is more actively replenished to the flame root of the outer ring burner 2110. With this setting, it is more conducive to the complete combustion of the gas ejected from the outer ring burner 2110 (in this case, the secondary air in the surrounding environment can still participate in the combustion of the gas ejected from the outer ring burner 2110). Similarly, when the ejector air from the inner ring burner 2211 is insufficient to support the combustion of the gas ejected from the inner ring burner 2211, secondary air supplementation is required. In this embodiment, forced draft air is provided, which can provide sufficient oxygen to supplement the flame root of the inner ring burner 2211, assisting in the combustion of the gas ejected from the inner ring burner 2211. Compared to supplementing secondary air from the surrounding environment through buoyancy and entrainment, the forced draft air more actively supplements the flame root of the inner ring burner 2211. This setting is more conducive to the complete combustion of the gas ejected from the inner ring burner 2211 (in this case, the secondary air from the surrounding environment can still participate in the combustion of the gas ejected from the inner ring burner 2211). In addition, compared to the forced draft air being supplemented in the form of primary air (forced draft air and gas are mixed in the burner and then ejected), the forced draft air in this embodiment is supplemented in the form of secondary air, which makes it less likely for the flame of the outer ring burner 2110 and / or the flame of the inner ring burner 2211 to experience flame lift-off.
[0055] Combination Figures 4 to 10 As shown, in some embodiments, the burner cap 2000 also has a flow equalization plate 2300, which covers the second cavity 1200 and is provided with flow equalization holes 2310. The second cavity 1200 is connected to the flow equalization holes 2310, and the flow equalization holes 2310 are connected to the exhaust cavity 2400. The blown air provided by the fluid machinery 3000 enters the second cavity 1200, then passes through the flow equalization holes 2310 to enter the exhaust cavity 2400, and finally exits from the exhaust cavity 2400. There are multiple flow equalization holes 2310, where multiple means two or more. By setting the flow equalization plate 2300, the blown air is evenly distributed, making the blown air flow out uniformly, suppressing uneven flow of the blown air, and making the blown air more evenly distributed in different positions in the exhaust cavity 2400, which is beneficial to further improve the combustion efficiency of the gas.
[0056] Combination Figure 4As shown, in some embodiments, one of the outer ring burner cap 2100 and the inner ring burner cap 2200 is fixed to the flow equalization plate 2300, thus reducing the number of parts during assembly. When the outer ring burner cap 2100 and the flow equalization plate 2300 are fixed, the flow equalization plate 2300 covers the second cavity 1200 when the outer ring burner cap 2100 is placed over the burner head 1000. Similarly, when the inner ring burner cap 2200 and the flow equalization plate 2300 are fixed, the flow equalization plate 2300 covers the second cavity 1200 when the inner ring burner cap 2200 is placed over the burner head 1000. For example, the outer ring burner cap 2100 and the flow equalization plate 2300 are fixed together as one component, and the inner ring burner cap 2200 is also a single component. Removing or installing the burner cap 2000 requires only two operations. It is understood that the aforementioned fixing can be achieved through connection methods such as screws, or the two components can be integrally formed.
[0057] Combination Figures 4 to 10 As shown, in some embodiments, the burner also includes an ignition needle 4100 and a sensing needle 4200. The ignition needle 4100 is used for ignition, and the sensing needle 4200 is used for flame sensing. The tips of the ignition needle 4100 and the sensing needle 4200 are both located in the exhaust chamber 2400. Thus, the ignition needle 4100 ignites in the exhaust chamber 2400, and the sensing needle 4200 senses the flame in the exhaust chamber 2400. Since the exhaust chamber 2400 is formed by the outer ring burner cap 2100 surrounding the inner ring burner cap 2200, the outer ring burner cap 2100 and the inner ring burner cap 2200 have a protective effect on the flame in the exhaust chamber 2400, thereby improving the success rate of ignition and flame sensing. In addition, by placing the tip of the ignition needle 4100 and the tip of the sensing needle 4200 in the exhaust chamber 2400, the outer ring burner cap 2100 and the inner ring burner cap 2200 will also protect the ignition needle 4100 and the sensing needle 4200, reducing the probability of the ignition needle 4100 and the sensing needle 4200 being bumped by the outside.
[0058] Furthermore, combined Figure 1 , Figure 7 and Figure 8As shown, in some embodiments, along the radial direction of the burner cap 2000, the outer ring burner cap 2100 shields the ignition needle 4100 and the sensing needle 4200 from the outside in. "From the outside in" means from the direction away from the center of the burner cap 2000 towards the center of the burner cap 2000 along the radial direction of the burner cap 2000. Furthermore, along the axial direction of the burner cap 2000, the inner ring burner cap 2200 shields the ignition needle 4100 and the sensing needle 4200 from top to bottom. This arrangement achieves a concealed configuration of the ignition needle 4100 and the sensing needle 4200, further enhancing their protective performance and effectively preventing contamination of the tips of the ignition needle 4100 and the sensing needle 4200, thereby ensuring sensitivity during use. It is understood that in some embodiments, a single needle is used to achieve both the ignition and sensing functions; such a single needle can be considered to include both the ignition needle 4100 and the sensing needle 4200, such as an ionization ignition sensing needle.
[0059] Combination Figures 5 to 8 as well as Figures 11 to 13 As shown, in some embodiments, the inner ring burner cap 2200 also has an air passage 2230, which connects the third cavity 1300 and the exhaust cavity 2400. By setting the air passage 2230, the ignition of the ignition needle 4100 and the ignition of the sensing needle 4200 can be realized.
[0060] Specifically, since the tips of the ignition needle 4100 and the sensing needle 4200 are located in the exhaust chamber 2400, how to perform ignition and sensing is a problem that needs to be considered. In this embodiment, the inner ring burner cap 2200 is provided with a flow channel 2230. The gas entering the third cavity 1300 is not only ejected from the inner ring burner hole 2211, but also enters the exhaust chamber 2400 along the flow channel 2230 (e.g., the mixture of ignited air and gas is ejected from both the inner ring burner hole 2211 and the flow channel 2230). Since the ignition needle 4100 is located in the exhaust chamber 2400, when the gas enters the exhaust chamber 2400 from the flow channel 2230, it will be ignited by the ignition needle 4100 to form a flame, and then the flame will be transmitted to the outer ring burner hole 2110 and the inner ring burner hole 2211, thereby igniting the gas ejected from the outer ring burner hole 2110 and the inner ring burner hole 2211 to form a flame. Meanwhile, the flame formed in the exhaust chamber 2400 is sensed by the sensing needle 4200, thus maintaining the combustion state. It is understood that the ignition needle 4100 is positioned in the exhaust path of the airflow channel 2230, making it easier to ignite the gas discharged from the airflow channel 2230 to form a flame. The sensing needle 4200 is also positioned in the exhaust path of the airflow channel 2230, facilitating contact with the flame for sensing.
[0061] In some embodiments, there are multiple air passages 2230, which are arranged alternately along the circumference of the inner ring burner cap 2200. This ensures that flames can be formed in all exhaust chambers 2400 in the direction surrounding the inner ring burner cap 2200, thus facilitating ignition. For example, in the minimum fire state, the gas is discharged from the inner ring burner hole 2211 and the air passages 2230, forming a flame. In the maximum fire state, the gas is discharged not only from the inner ring burner hole 2211 and the air passages 2230, forming a flame, but also ejected from the outer ring burner hole 2110, forming a flame. When adjusting from the minimum fire state to the maximum fire state, since flames can be formed in all exhaust chambers 2400 in the direction surrounding the inner ring burner cap 2200, the contact area with the gas ejected from the outer ring burner hole 2110 is increased, making it easier to ignite the gas ejected from the outer ring burner hole 2110.
[0062] Of course, the following approach can also be adopted, combined with... Figures 11 to 13 As shown, in some embodiments, the airflow channel 2230 includes an opening 2231 and an annular seam 2232, which are connected. There are multiple openings 2231 (two or more). These openings 2231 are arranged alternately along the circumference of the inner ring flame cap 2200. The annular seam 2232 extends along the circumference of the inner ring flame hole 2211. One end of each opening 2231 communicates with the third cavity 1300. The other end of each opening 2231... One end is connected to the annular seam 2232, which is connected to the exhaust chamber 2400. Part of the gas entering the third chamber 1300 is ejected through the inner ring flame hole 2211, and part enters the opening 2231 and flows out through the annular seam 2232. Since the annular seam 2232 extends circumferentially along the inner ring flame hole 2211, the exhaust chamber 2400 can form a continuous flame in the direction surrounding the inner ring flame cap 2200, which is conducive to further improving the success rate of ignition.
[0063] Combination Figure 7 , Figure 8 as well as Figures 11 to 13As shown, in some embodiments, the inner ring flame cap 2200 includes a first inner cover 2210 and a second inner cover 2220. The second inner cover 2220 surrounds the first inner cover 2210. The first inner cover 2210 is provided with the aforementioned inner ring flame hole 2211 and is an infrared flame cap. The second inner cover 2220 is provided with the aforementioned airflow channel 2230. By surrounding the first inner cover 2210, the second inner cover 2220 and the first inner cover 2210 can be combined together, and the second inner cover 2220 provides support for the first inner cover 2210. The first inner cover 2210 is an infrared flame cap, which can achieve infrared combustion (the whole body is red when in combustion). For example, the first inner cover 2210 is a porous ceramic plate to form an infrared flame cap. When the first inner cover 2210 is an infrared flame cap, its flame hole heat intensity is small, which can achieve fully premixed infrared combustion, which is conducive to improving combustion efficiency, reducing the demand for secondary air, and even eliminating the need to supplement secondary air. In this way, the blower air does not need to be supplemented to the flame root of the inner ring flame hole 2211.
[0064] Furthermore, in some embodiments, the second inner cover 2220 is made of metal, such as copper, stainless steel, or iron. This allows the combustion of the gas ejected from the air passage 2230 to be atmospheric combustion. Similarly, the outer ring burner cap 2100 can also be made of metal, such as copper, stainless steel, or iron. This allows the combustion of the gas ejected from the outer ring burner hole 2110 to be atmospheric combustion. Generally, when the first inner cover 2210 is an infrared burner cap, its combustion power is relatively lower than that of the metal outer ring burner cap 2100. By combining different materials, both the burner's combustion power and the complete combustion of the gas can be ensured. Moreover, because the second inner cover 2220 is made of metal, the flame in the exhaust chamber 2400 exhibits a certain degree of movement, making ignition easier.
[0065] Combination Figures 5 to 8 As shown, in some embodiments, the outer ring flame hole 2110 is inclined from bottom to top away from the center of the flame cap 2000, which is beneficial for forming a large-area flame. Optionally, the outer ring flame hole 2110 is annular, for example, the outer ring flame hole 2110 is circular, so that gas is ejected along the circumference of the outer ring flame cap 2100. In this way, the flame formed in the exhaust chamber 2400 can increase the contact area between the flame and the gas ejected from the annular flame hole 2110, which is beneficial for improving the success rate of ignition.
[0066] Combination Figures 5 to 8As shown, in some embodiments, the exhaust end 2410 of the exhaust chamber 2400 is inclined from bottom to top away from the center of the flame cap 2000. This is conducive to the flow of blown air toward the flame root of the outer ring flame hole 2110. Especially when the inner ring flame hole 2211 includes a first inner cover 2210 and the first inner cover 2210 is an infrared flame cap, it is more conducive to oxygen replenishment to the flame root of the outer ring flame hole 2110. Optionally, the exhaust end 2410 of the exhaust chamber 2400 is annular, for example, circular. Since the exhaust chamber 2400 is formed by the outer ring flame cap 2100 surrounding the inner ring flame cap 2200, designing the exhaust end 2410 of the exhaust chamber 2400 as annular slit simplifies the complex fit between the outer ring flame cap 2100 and the inner ring flame cap 2200. Furthermore, flames are emitted along the extension direction of the exhaust chamber 2400, making it easier to ignite the outer ring flame hole 2110 and the inner ring flame hole 2211.
[0067] The second aspect of this application also discloses a gas stove, combined with Figures 1 to 13 As shown, the gas stove includes the aforementioned burner, which includes a burner head 1000, a burner cap 2000, and a fluid mechanical component 3000. The burner head 1000 has a first cavity 1100, a second cavity 1200, and a third cavity 1300. The burner cap 2000 is mounted on the burner head 1000 and has an outer ring burner cap 2100 and an inner ring burner cap 2200. The outer ring burner cap 2100 is provided with an outer ring flame hole 2110. The outer ring flame hole 2110 and the first ring burner cap 2200 are connected. The cavity 1100 is connected, the inner ring burner cap 2200 is provided with an inner ring burner hole 2211, the inner ring burner hole 2211 is connected with the third cavity 1300, the outer ring burner cap 2100 surrounds the inner ring burner cap 2200, and an exhaust chamber 2400 is formed between the outer ring burner cap 2100 and the inner ring burner cap 2200. The exhaust chamber 2400 is connected with the second cavity 1200, and the fluid machinery 3000 is used to generate blown air, which is introduced into the second cavity 1200.
[0068] The burner head 1000 can be a one-piece molded structure or formed by connecting separate parts. The burner head 1000 has a first cavity 1100, a second cavity 1200, and a third cavity 1300. Figure 4 As shown in the furnace head 1000, the first cavity 1100 surrounds the second cavity 1200, the second cavity 1200 surrounds the third cavity 1300, the first cavity 1100 and the second cavity 1200 are arranged with the same wall, and the second cavity 1200 and the third cavity 1300 are arranged with the same wall, which helps to reduce the structural complexity of the furnace head 1000.
[0069] The burner cap 2000 comprises an outer ring burner cap 2100 and an inner ring burner cap 2200. The outer ring burner cap 2100 surrounds the inner ring burner cap 2200. When the burner cap 2000 is placed on the furnace head 1000, the outer ring burner cap 2100 encloses the first cavity 1100, and the inner ring burner cap 2200 encloses the third cavity 1300. The outer ring burner cap 2100 is provided with an outer ring flame hole 2110, and the inner ring burner cap 2200 is provided with an inner ring flame hole 2211. The outer ring flame hole 2110 communicates with the first cavity 1100, and the inner ring flame hole 2211 communicates with the third cavity 1300. It can be understood that the outer ring flame hole 2110 and the inner ring flame hole 2211 here should be understood as structures for gas outflow, and their shapes can be perforated, slit-like, etc., for example... Figure 4 and Figure 6 The outer ring flame hole 2110 is slit-shaped, and the inner ring flame hole 2211 is perforated. After the gas is introduced into the first cavity 1100, it is ejected from the outer ring flame hole 2110 and ignited to form a flame. Similarly, after the gas is introduced into the third cavity 1300, it is ejected from the inner ring flame hole 2211 and ignited to form a flame. In order to improve the combustion efficiency of the gas ejected from the burner cap 2000, forced air is supplied by the fluid machinery 3000.
[0070] Fluid machinery 3000 is a machine that uses fluid as a working medium for energy conversion. For example, fluid machinery 3000 can be a fan. Through the action of fluid machinery 3000, forced air can be provided. The forced air is introduced into the second cavity 1200. Since the exhaust cavity 2400 is connected to the second cavity 1200, the forced air will enter the exhaust cavity 2400 and then be discharged from the exhaust cavity 2400. After being discharged from the exhaust cavity 2400, the forced air can be supplied to the flame root of the outer ring flame hole 2110 and / or the flame root of the inner ring flame hole 2211, thereby improving the combustion efficiency of the gas ejected from the outer ring flame hole 2110 and / or the inner ring flame hole 2211, thereby improving the thermal efficiency. The fluid machinery 3000 can be directly connected and fixed to the burner head 1000, making it easier to cooperate with the second chamber 1200. It directly provides forced air to the second chamber 1200. The fluid machinery 3000 can continue to run after the gas stove is ignited until the gas stove is turned off. Regardless of whether the gas stove is in the minimum or maximum flame state, the fluid machinery 3000 continuously provides forced air without interfering with the gas supply.
[0071] In this embodiment, a second cavity 1200 is provided on the burner head 1000 to form a blower channel. Blower air can enter the second cavity 1200 and flow out from the exhaust chamber 2400 of the burner cap 2000. The supply of blower air is generated by the fluid machinery 3000, which can more actively supply the flame root of the outer ring burner holes 2110 and / or the inner ring burner holes 2211, resulting in more complete combustion of the gas and thus improving thermal efficiency. It is understood that the burner of the gas stove in this embodiment adopts the technical solution of the above embodiment, and therefore at least has the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.
[0072] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.
Claims
1. A burner, characterized in that, The burner includes: The burner head (1000) has a first cavity (1100), a second cavity (1200) and a third cavity (1300); A burner cap (2000) is mounted on the burner head (1000). The burner cap (2000) has an outer ring burner cap (2100) and an inner ring burner cap (2200). The outer ring burner cap (2100) has an outer ring fire hole (2110) communicating with the first cavity (1100). The inner ring burner cap (2200) has an inner ring fire hole (2211) communicating with the third cavity (1300). The outer ring burner cap (2100) surrounds the inner ring burner cap (2200), and an exhaust chamber (2400) communicating with the second cavity (1200) is provided between the outer ring burner cap (2100) and the inner ring burner cap (2200). Fluid machinery (3000) is adapted to supply blown air to the second cavity (1200).
2. The burner as claimed in claim 1, characterized in that, The flame cap (2000) also has a flow equalization plate (2300) covering the second cavity (1200), the flow equalization plate (2300) is provided with flow equalization holes (2310), the second cavity (1200) and the flow equalization holes (2310) are connected, and the flow equalization holes (2310) are connected to the exhaust cavity (2400).
3. The burner as described in claim 2, characterized in that, One of the outer ring flame cap (2100) and the inner ring flame cap (2200) is fixed to the flow equalization plate (2300).
4. The burner as claimed in claim 1, characterized in that, The burner also includes an ignition needle (4100) and a sensing needle (4200), the tip of which is located in the exhaust chamber (2400) and the tip of which is located in the exhaust chamber (2400).
5. The burner as described in claim 4, characterized in that, The inner ring cap (2200) is adapted to cover the ignition needle (4100) and the sensing needle (4200) from top to bottom, and the outer ring cap (2100) is adapted to cover the ignition needle (4100) and the sensing needle (4200) from the outside to the inside.
6. The burner as claimed in claim 4, characterized in that, The inner ring flame cap (2200) is also provided with an air passage (2230), which connects the third cavity (1300) and the exhaust cavity (2400).
7. The burner as claimed in claim 6, characterized in that, The number of air passages (2230) is multiple, and the multiple air passages (2230) are arranged alternately along the circumference of the inner ring flame cap (2200).
8. The burner as claimed in claim 6, characterized in that, The air passage (2230) includes interconnected openings (2231) and annular seams (2232). There are multiple openings (2231), which are arranged alternately along the circumference of the inner ring flame cap (2200) and communicate with the third cavity (1300). The annular seams (2232) extend along the circumference of the inner ring flame cap (2200) and communicate with the exhaust cavity (2400).
9. The burner as claimed in claim 6, characterized in that, The inner ring flame cap (2200) has a first inner cover body (2210) and a second inner cover body (2220) surrounding the first inner cover body (2210). The first inner cover body (2210) is an infrared flame cap and is provided with the inner ring flame hole (2211). The second inner cover body (2220) is provided with the air passage (2230).
10. The burner as claimed in claim 9, characterized in that, The first inner cover (2210) is a porous ceramic plate, and / or the second inner cover (2220) is made of metal, and / or the outer ring cap (2100) is made of metal.
11. The burner as claimed in claim 1, characterized in that, The outer ring fire hole (2110) is inclined from bottom to top away from the center of the fire cover (2000); And / or, the exhaust end (2410) of the exhaust chamber (2400) is inclined from bottom to top away from the center of the flame cap (2000); And / or, the outer ring fire hole (2110) is in the shape of an annular slit (2232); And / or, the exhaust end (2410) of the exhaust chamber (2400) is in the shape of an annular slit (2232).
12. The burner as claimed in claim 1, characterized in that, The fluid machinery (3000) and the furnace head (1000) are connected and fixed.
13. The burner as claimed in claim 1, characterized in that, The first cavity (1100) is adapted to receive fuel gas and ejector air, and the third cavity (1300) is adapted to receive fuel gas and ejector air.
14. A gas stove, characterized in that, Includes the burner according to any one of claims 1 to 13.