A gas balanced pilot burner structure
Patent Information
- Application Number
- CN202522488418.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-21
AI Technical Summary
Existing gas burners have uneven gas flow rates during the gas flow process, resulting in inconsistent combustion effects. In particular, the flow rate is fast near the inlet and slow further away from the inlet, and the gas and air are not mixed evenly.
Guiding channels are set on both sides of the gas passage to guide part of the gas in the gas passage directly to the gas outlet section for secondary gas replenishment, ensuring that the gas is evenly distributed and burns evenly at the burner.
It achieves uniformity of gas flow rate and improves combustion efficiency. The gas is fully mixed with air at the burner, resulting in more uniform combustion, reducing local gas shortages and flame instability, and improving combustion efficiency.
Smart Images
Figure CN224932735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas stove technology, and in particular to a burner structure for balanced gas flow guidance. Background Technology
[0002] The gas burner head is usually the core component of a gas stove. By connecting the gas inlet of the gas burner head to the gas pipeline, the gas pipeline guides the gas through the gas inlet into the gas burner head. The gas guide chamber guides the gas to flow in the gas burner head and guides it to the burner head for uniform combustion.
[0003] In related technologies, to ensure that the gas is evenly guided to the burner head for uniform combustion, a spiral guide channel or an annular guide cavity is usually installed inside the gas burner head. However, in this gas flow method, there is only one gas inlet. During the gas flow process, the gas velocity is faster at the inlet and slower further away, resulting in uneven gas flow.
[0004] Furthermore, since the flow rate of gas decreases as it approaches the inlet and moves further away from the inlet, air needs to be added during the process of introducing gas into the burner. If the flow rates are inconsistent, the amount of air mixed in will also be different, resulting in inconsistent flame combustion effects. Utility Model Content
[0005] In order to overcome at least one of the defects of the prior art, the present invention provides a burner head structure for balanced gas flow, which can supplement gas at the gas outlet section of the gas guide chamber by setting guide channels on both sides of the gas passage, so as to achieve balanced gas flow.
[0006] The technical solution adopted by this utility model to solve its problem is: A burner head structure with balanced gas flow guidance includes, The burner head base is provided with a gas inlet, a gas passage, a gas guiding chamber, two guiding channels, and two first gas outlets. The gas guiding chamber includes a guiding section and two gas outlet sections. The guiding section is connected and conductive between the two gas outlet sections. The two gas outlet sections are conductive to the two first gas outlets. The gas passage includes a first end and a second end, the first end being connected to the gas inlet and the second end being connected to the guide section; The two guide channels are respectively disposed on both sides of the gas passage, one end of each guide channel leads to the middle of the gas passage, and the other end of each guide channel leads to the two gas outlet sections respectively. A burner cap assembly is installed on the burner head base. The burner cap assembly is provided with two first gas inlets, and the two first gas inlets are connected to two first gas outlets.
[0007] As an optional implementation, the inner diameter of the guide channel gradually increases from the end closer to the gas passage to the end farther away from the gas passage.
[0008] As an optional implementation, the inner wall surface of the guide channel is an inclined surface.
[0009] As an optional implementation, the air outlet section gradually slopes upward from the end closest to the guide section to the end furthest from the guide section.
[0010] As an optional implementation, the air outlet section and the guide section are connected by a first arc surface.
[0011] As an optional implementation, the air outlet section and the guide channel are connected by a second arc surface.
[0012] As an optional implementation, the sidewall of the guide segment facing the second end is a third arc surface.
[0013] As an optional implementation, the burner assembly includes a burner outer ring, with the first gas inlets provided on both sides of the burner outer ring, and the two first gas inlets being connected to the two first gas outlets.
[0014] As an optional implementation, a second gas outlet is provided in the middle of the burner head base. The second gas outlet is located between the two gas outlet sections and is connected to the two gas outlet sections. The burner cap assembly includes an inner burner cap ring, which is located in the middle of the outer burner cap ring and is connected to the second gas outlet.
[0015] As an optional implementation, the burner seat includes a first burner seat and a second burner seat, the second burner seat covering the first burner seat and forming the gas passage, the gas guiding chamber and the guiding passage; the first burner seat is provided with the gas inlet; the second burner seat is provided with the first gas outlet.
[0016] In summary, this utility model has the following technical effects: 1. By setting up guide channels on both sides of the gas passage, the gas in the gas passage is directly guided to the gas outlet section. Secondary gas replenishment is carried out at the gas outlet section. In this way, the amount of gas guided to the first gas outlet through the gas outlet section is sufficient and the gas velocity is high. When the gas is introduced into the first gas outlet and burned in the burner, it can be fully mixed with air, resulting in high combustion efficiency and uniform combustion.
[0017] 2. The gas is guided into the gas outlet sections on both sides through the guide channels on both sides. This makes the flow velocity and gas distribution on both sides relatively uniform, reducing the situation where the flow velocity is high at the outlet position and low at the position far from the outlet due to the single point of gas output. Therefore, the gas output flow velocity is relatively uniform, which facilitates the uniform mixing of gas in the later stage. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the furnace head structure of this utility model; Figure 2 This is a cross-sectional view of the furnace head structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the furnace head seat of this utility model; Figure 4 This is a schematic diagram of the structure of the furnace head seat of this utility model; Figure 5 This is a schematic diagram of the structure of the flame cap assembly of this utility model; Figure 6 This is a schematic diagram of the flame cap assembly of this utility model from another perspective.
[0020] The meanings of the reference numerals in the attached drawings are as follows: 10, burner head base; 11, gas inlet; 12, gas passage; 121, first end; 122, second end; 13, guide passage; 14, gas guide cavity; 141, gas outlet section; 1411, first arc surface; 1412, second arc surface; 142, guide section; 1421, third arc surface; 15, first gas outlet; 16, second gas outlet; 20, burner cap assembly; 21, burner cap outer ring; 211, first gas inlet; 22, burner cap inner ring; 221, second gas inlet. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0023] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.
[0025] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0026] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.
[0027] See Figures 1-6This utility model discloses a burner head structure for balanced gas guidance, including a burner head base 10 and a burner cap assembly 20. The burner head base 10 is provided with a gas inlet 11, a gas passage 12, a gas guiding cavity 14, two guiding channels 13 and two first gas outlets 15. Specifically, the gas guiding cavity 14 includes a guiding section 142 and two gas outlet sections 141, and the guiding section 142 is connected and conductive between the two gas outlet sections 141. The two gas outlet sections 141 are conductive to the two first gas outlets 15.
[0028] In addition, the gas passage 12 includes a first end 121 and a second end 122. The first end 121 of the gas passage 12 is connected to the gas inlet 11, and the second end 122 of the gas passage 12 is connected to the guide section 142. The two guide channels 13 are respectively located on both sides of the gas passage 12, and one end of each guide channel 13 is connected to the middle of the gas passage 12. The other end of each guide channel 13 is connected to the two gas outlet sections 141 respectively. The aforementioned burner cap assembly 20 is installed on the burner head seat 10. The burner cap assembly 20 is provided with two first gas inlets 211, and the two first gas inlets 211 are connected to the two first gas outlets 15.
[0029] Based on the above structure, using the gas-balanced guiding burner structure of this utility model, when the burner connector is applied to a gas stove, the gas inlet 11 is connected to the gas pipeline. In this way, when using the gas stove, gas is delivered to the gas inlet 11 through the gas pipeline, and the gas is introduced into the first end 121 of the gas channel 12 through the gas inlet 11. The gas is then guided to the second end 122 through the gas channel 12. In this way, the gas can enter the guiding section 142 in the middle of the gas guiding chamber 14. The guiding section 142 guides the gas to flow through both sides to the gas outlet section 141. In this way, the gas outlet section 141 can guide the gas to be discharged to the first gas outlet 15. The gas is then guided to the first gas inlet 211 of the burner cap for uniform combustion on the burner cap.
[0030] It should be noted that after the gas in the gas passage 12 enters the gas guiding chamber 14, it is guided through the middle guiding section 142 to the outlet sections 141 on both sides. When the gas flows, the gas flow velocity near the guiding section 142 is faster than that at the outlet section 141. As a result, the gas flow velocity introduced through the guiding section 142 to the first gas outlet 15 is relatively slow, and the gas quantity is also insufficient. When it is discharged through the first gas outlet 15, it needs to mix with air for combustion. If the gas quantity and gas velocity are insufficient, it will lead to local gas scarcity and unstable combustion flame.
[0031] Therefore, in this application, by setting guide channels 13 on both sides of the gas passage 12, the gas in the gas passage 12 is directly guided to the gas outlet section 141 by the guide channels 13 on both sides. Secondary gas replenishment is carried out at the gas outlet section 141. In this way, the amount of gas guided to the first gas outlet 15 through the gas outlet section 141 is sufficient and the gas velocity is high. When the gas is introduced into the first gas outlet 15 and burned on the burner, it can be fully mixed with air, resulting in high combustion efficiency and uniform combustion.
[0032] In addition, the gas is introduced into the gas outlet sections 141 on both sides through the guide channels 13 on both sides. This makes the flow rate and gas distribution on both sides relatively uniform, reducing the situation where the flow rate is high at the outlet position and low at the position far from the outlet due to the single point of gas output. Therefore, the gas output flow rate is relatively uniform, which facilitates uniform gas mixing in the later stage.
[0033] As an optional implementation, the inner diameter of the guide channel 13 gradually increases from the end near the gas channel 12 to the end away from the gas channel 12. In this way, the gas in the gas channel 12 can be introduced through the small diameter of the guide channel 13, and after entering the guide channel 13, it can be discharged through the large diameter. This slows down the flow rate of the gas discharged in the guide channel 13 and can fully mix with the gas in the gas outlet section 141, preventing the flow rate discharged in the guide channel 13 from being too fast and generating airflow turbulence at the gas outlet section 141.
[0034] As an optional implementation, the inner wall of the guide channel 13 is inclined to guide the airflow direction, so that the gas flows from the gas channel 12 to the guide channel 13 and then smoothly enters the gas outlet section 141 along the inclined surface, avoiding airflow collision and turbulence.
[0035] As an alternative implementation, the aforementioned exhaust section 141 also gradually slopes upwards from the end near the guide section 142 to the end away from the guide section 142. The combustible gas flows upwards guided by the inclined wall. As the gas flows on the inclined surface, a thin gas film forms on its surface, allowing the gas to fully expand and exit, which facilitates better mixing of the gas and air. This improves combustion efficiency at the burner assembly 20, reduces the emission of harmful gases, and makes the flame more stable.
[0036] As an optional implementation, the outlet section 141 and the guide section 142 are connected by a first arc surface 1411. This allows the gas entering the outlet section 141 from the guide section 142 to be guided and transitioned via the first arc surface 1411. The arc is relatively smooth, providing gentler contact with the gas and allowing it to flow smoothly along its surface. Compared to connecting with sharp corners or flat surfaces, this significantly reduces airflow separation and turbulence, thereby lowering flow resistance and improving gas transmission efficiency. Reducing resistance during gas flow ensures smooth gas flow.
[0037] Similarly, the gas in the guide channel 13, after entering the outlet section 141, is also connected by a second arc surface 1412. The arc is relatively smooth, and the contact with the gas is gentle, allowing the gas to flow smoothly along its surface. Compared to connecting with sharp corners or flat surfaces, this greatly reduces airflow separation and turbulence, thereby reducing flow resistance and improving gas transmission efficiency. Reducing resistance during gas flow ensures smooth gas flow.
[0038] As an optional implementation, the sidewall of the guide section 142 facing the second end 122 is a third arc surface 1421. If the sidewall of the guide section 142 facing the second end 122 is a plane, the gas discharged from the second end 122 of the gas passage 12 may directly hit the plane, resulting in unstable flow rate. Therefore, in this embodiment, the third arc surface 1421 is used to receive the gas discharged from the second end 122, which can realize the smooth reception and guidance of the gas.
[0039] As an optional implementation, the burner cap assembly 20 includes a burner cap outer ring 21. The two sides of the burner cap outer ring 21 are provided with first gas inlets 211. The two first gas inlets 211 are connected to the two first gas outlets 15. In this way, the first gas inlets 211 on both sides of the burner cap outer ring 21 can be connected to the first gas outlets 15 of the burner head seat 10 respectively. In this way, the gas is introduced through the first gas inlets 211 on both sides. The gas enters on both sides of the burner cap outer ring 21, and the gas introduction is uniform. The gas flow rate introduced on both sides is relatively consistent, reducing the uneven flow rate caused by a single gas inlet 11.
[0040] As an optional implementation, a second gas outlet 16 can be provided in the middle of the burner head base 10. The second gas outlet 16 is located between and connected to the two gas outlet sections 141. The burner cap assembly 20 includes a burner cap inner ring 22, which is located in the middle of the burner cap outer ring 21. Specifically, the burner cap inner ring 22 is provided with a second gas inlet 221, which is connected to the second gas outlet 16. In this way, part of the gas from the two gas outlet sections 141 can flow to the second gas outlet 16, and then be guided to the burner cap inner ring 22. The gas then passes through the burner cap inner ring 22 and is burned in the middle of the burner cap outer ring 21, thus achieving a more uniform distribution of the inner and outer flames and combustion.
[0041] As an optional implementation, the burner seat 10 includes a first burner seat and a second burner seat, the second burner seat covering the first burner seat and forming a gas passage 12, a gas guiding chamber 14 and a guiding passage 13; the first burner seat is provided with a gas inlet 11; the second burner seat is provided with a first gas outlet 15.
[0042] Since the burner head seat 10 is formed by assembling a separate first burner seat and a second burner seat, the first burner seat and the second burner seat can be stored and transported separately during transportation, reducing the transportation space caused by the excessive volume of the integrally formed burner head seat 10.
[0043] Guide grooves can be machined separately on the first furnace base and the second furnace base. When assembling the first furnace base and the second furnace base, the corresponding guide grooves can cooperate with each other to form the gas channel 12, the gas guiding cavity 14 and the guiding channel 13, which facilitates the machining of the internal channels and cavities of the first furnace base and the second furnace base separately, making the machining convenient.
[0044] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. A burner head structure with balanced gas flow guidance, characterized in that... ,include, The burner head base is provided with a gas inlet, a gas passage, a gas guiding chamber, two guiding channels, and two first gas outlets. The gas guiding chamber includes a guiding section and two gas outlet sections. The guiding section is connected and conductive between the two gas outlet sections. The two gas outlet sections are conductive to the two first gas outlets. The gas passage includes a first end and a second end, the first end being connected to the gas inlet and the second end being connected to the guide section; The two guide channels are respectively disposed on both sides of the gas passage, one end of each guide channel leads to the middle of the gas passage, and the other end of each guide channel leads to the two gas outlet sections respectively. A burner cap assembly is installed on the burner head base. The burner cap assembly is provided with two first gas inlets, and the two first gas inlets are connected to two first gas outlets.
2. The burner head structure with balanced gas flow guidance according to claim 1, characterized in that... The inner diameter of the guide channel gradually increases from the end closest to the gas passage to the end furthest from the gas passage.
3. The burner head structure with balanced gas flow guidance according to claim 2, characterized in that, The inner wall of the guide channel is inclined.
4. The burner head structure with balanced gas flow guidance according to claim 1, characterized in that, The air outlet section gradually slopes upward from the end closest to the guide section to the end furthest from the guide section.
5. The burner head structure with balanced gas flow guidance according to claim 4, characterized in that, The air outlet section and the guide section are connected by a first arc surface.
6. The burner head structure with balanced gas flow guidance according to claim 5, characterized in that, The air outlet section and the guide channel are connected by a second arc surface.
7. The burner head structure with balanced gas flow guidance according to claim 1, characterized in that, The sidewall of the guide segment facing the second end is a third arc surface.
8. The burner head structure with balanced gas flow guidance according to any one of claims 1-7, characterized in that, The flame cap assembly includes a flame cap outer ring, and the two sides of the flame cap outer ring are provided with the first gas inlets, and the two first gas inlets are connected to the two first gas outlets.
9. The burner head structure with balanced gas flow guidance according to claim 8, characterized in that, A second gas outlet is provided in the middle of the burner head base. The second gas outlet is located between the two gas outlet sections and is connected to the two gas outlet sections. The burner cap assembly includes an inner burner cap ring, which is located in the middle of the outer burner cap ring and is connected to the second gas outlet.
10. The burner head structure with balanced gas flow according to any one of claims 1-7, characterized in that, The burner seat includes a first burner seat and a second burner seat, the second burner seat covering the first burner seat and forming the gas passage, the gas guiding cavity and the guiding channel; the first burner seat is provided with the gas inlet; the second burner seat is provided with the first gas outlet.