Inner ring burner and burner

Abstract

This invention discloses an inner ring burner cap and a burner, relating to the field of stove technology. The inner ring burner cap includes an upper burner cap and a base. The upper burner cap is detachably fitted onto the base to form a central cavity and multiple slotted flame holes. The slotted flame holes connect the central cavity to the outside. A mixing chamber is located below the base, and the central cavity connects to the mixing chamber. The base includes an inner sidewall. The upper end of the inner sidewall extends radially inward toward the inner ring burner cap to form a base plate. The base plate is located above the mixing chamber. The inner side of the base plate extends upward to form an inner ring wall. A slow-flow cavity is formed between the base plate, the inner ring wall, and the slotted flame holes. The base plate has multiple first through holes connecting the mixing chamber and the slow-flow cavity. The inner ring wall has multiple second through holes connecting the central cavity and the slow-flow cavity. Thus, the inner ring burner cap contains three gas supply channels, slowing down the gas flow rate, providing good flame stabilization, preventing flame lift-off under cold and high-pressure conditions, and making the inner ring burner cap easier to clean, preventing overflow and blockage, facilitating user maintenance, and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of stove technology, and in particular to an inner ring burner cap and burner. Background Technology

[0002] The inner ring of the split-type slotted flame cap in existing technology has poor flame stabilization. It is prone to flame lift-off under cold and high-pressure conditions, and is prone to ignition difficulties or jamming under pressure fluctuations, i.e., high or low pressure conditions. To improve the flame stabilization effect, a flame stabilization hole is usually set above the slotted flame hole. The flame stabilization hole has a small diameter but a large depth, and the flame stabilization hole is horizontal. The flame stabilization hole is easily blocked by overflow liquid, and it is difficult to clean and unclog it after being blocked. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of poor flame stabilization of the inner ring burner in the prior art, and the flame stabilization holes are easily blocked and difficult to clean, so as to provide an inner ring burner and burner.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] The present invention provides an inner ring flame cap, the inner ring flame cap including an upper flame cap and a base, the upper flame cap being detachably fitted onto the base to form a central cavity and a plurality of slot flame holes, the slot flame holes communicating with the central cavity and the outside, a mixing chamber being provided below the base, and the central cavity communicating with the mixing chamber;

[0006] The base includes an inner sidewall, the upper end of which extends radially inward toward the inner ring flame cap to form a base plate. The base plate is located above the mixing chamber. The inner side of the base plate extends upward to form an inner ring wall. A slow-flow cavity is formed between the base plate, the inner ring wall, and the flame slot.

[0007] The base plate is provided with a plurality of first through holes connecting the gas mixing chamber and the slow flow chamber; the inner ring wall is provided with a plurality of second through holes connecting the central cavity and the slow flow chamber.

[0008] In this design, the inner ring burner cap features a base plate and an inner ring wall with through holes, thus providing three gas supply channels: a first channel through which gas enters the slow-flow chamber from the mixing chamber via a first through hole on the base plate, and then into the slotted flame hole; a second channel through which gas enters the central chamber from the mixing chamber, then through a second through hole on the inner ring wall into the slow-flow chamber, and then into the slotted flame hole; and a third channel through which gas enters the central chamber directly from the mixing chamber, then flows from the upper part of the inner ring wall into the slow-flow chamber, and then into the slotted flame hole. By providing these three gas supply channels, the gas flow rate is reduced, resulting in a stable flame and preventing flame lift-off under cold and high-pressure conditions. Furthermore, the first and second through holes are easy to clean; overflow can flow directly downwards through the first through hole, preventing blockage and providing a self-cleaning function. After routine cleaning of the burner cap, liquid does not easily accumulate in the first and second through holes, facilitating cleanliness and user maintenance, thus enhancing the user experience. Because of the presence of three channels, even if the first or second through hole is blocked by overflow in extreme cases, the remaining channels can still function normally, thus ensuring the flame stability of the inner ring flame cap.

[0009] Preferably, the upper end of the inner ring wall is lower than the upper end of the air inlet of the slot fire hole.

[0010] In this design, by making the upper end of the inner ring wall lower than the upper end of the air inlet of the slot flame hole, the gas in the third channel can more easily enter the slot flame hole, that is, enter the central cavity from the mixing chamber. The gas entering the slot flame hole can avoid being excessively blocked by the inner ring wall, thus improving the flame stabilization effect.

[0011] Preferably, the second through hole extends obliquely upward in a direction from the radially inner side to the radially outer side along the inner ring fire cap.

[0012] In this design, by providing a second through hole that extends radially upward from the inner side to the outer side of the inner ring burner cap, the gas flowing from the lower mixing chamber can be better guided into the slow-flow chamber and then into the slot burner hole to participate in combustion.

[0013] Preferably, the first through hole and the second through hole are arranged in a staggered manner along the circumference of the inner ring fire cover.

[0014] In this scheme, by setting the first and second through holes arranged circumferentially staggered along the inner ring burner cap, the gas flow rate and pressure entering the slot burner inlet in the circumferential direction of the inner ring burner cap are made more uniform, thereby making the gas combustion at the slot burner outlet more stable, improving the problem of long and short flames, and further enhancing the flame stabilization effect.

[0015] Preferably, the upper flame cap includes an inner side surface, the air inlet of the flame slot is located on the inner side surface, and the inner side surface is inclined radially inward towards the inner side of the inner ring flame cap in the direction from below to above.

[0016] In this design, by tilting the upper part of the inner side where the air inlet of the slot flame hole is located towards the radial inner side of the inner ring flame cap, it is more conducive to the flow of gas in the slow flow chamber into the slot flame hole, thereby further improving the flame stabilization effect.

[0017] Preferably, the plurality of first through holes are evenly spaced along the circumference of the inner ring fire cap;

[0018] And / or, a plurality of second through holes are evenly spaced along the circumference of the inner ring fire cap.

[0019] In this scheme, by setting a first through hole and a second through hole evenly spaced along the circumference of the inner ring burner, the gas flowing out of the first through hole and the second through hole is more uniform in the circumference of the inner ring burner, which in turn makes the gas flowing into the slot burner hole more uniform and further improves the flame stabilization effect.

[0020] Preferably, the slotted fire hole extends obliquely upward in a direction from the radially inner side to the radially outer side along the inner ring fire cover.

[0021] In this design, by setting slotted flame holes that extend radially upward from the inner side of the inner ring flame cap to the outer side, the depth of the slotted flame holes is increased, thereby reducing the gas flow rate. Furthermore, the upward-sloping design is more conducive to the gas flowing into the mixing chamber below entering the slotted flame holes, further improving the flame stabilization effect.

[0022] Preferably, in the direction from below to above the inner ring flame cap, the outer side of the upper flame cap is inclined radially inward towards the inner ring flame cap;

[0023] And / or, the upper flame cap further includes a flow-retarding section, the outer side of the upper flame cap extending radially outward from the slot flame hole to form the flow-retarding section.

[0024] In this design, by tilting the outer side of the upper burner cap towards the radially inner side of the inner ring burner cap, the spacing above the outlet of the slot burner holes is smaller, which is more conducive to the mutual restraint of flames. At the same time, by setting a slow flow section above the slot burner holes, the slow flow section presses down on the flame, and the gas flows to both sides at the outlet of the slot burner holes, so that the flames of adjacent slot burner holes are connected together, achieving a better flame stabilization effect.

[0025] Preferably, the inner ring flame cap includes a main ignition hole and an auxiliary ignition hole, the auxiliary ignition hole being located on both sides of the main ignition hole, and the inner diameter of the main ignition hole gradually increasing from the radially inner side to the radially outer side of the inner ring flame cap.

[0026] In this design, auxiliary flame holes are installed on both sides of the main ignition hole to increase the gas concentration at the ignition point, thereby improving the ignition performance of the main ignition hole during ignition. By gradually increasing the inner diameter of the main ignition hole from the radially inner side to the radially outer side along the inner ring of the burner cap, the gas flow velocity at the outlet of the main ignition hole can be slowed down using the Venturi principle, further increasing the gas concentration and improving ignition performance.

[0027] The present invention also provides a burner comprising the aforementioned inner ring flame cap.

[0028] In this design, the inner ring burner has the same effect as the aforementioned burner.

[0029] The positive and progressive effects of this invention are as follows:

[0030] The inner ring burner cap features a base plate and an inner ring wall, with through holes on both. This allows for three gas supply channels: a first channel where gas enters the mixing chamber through a first through hole on the base plate, flows into the slow-flow chamber, and then into the slotted flame hole; a second channel where gas enters the central chamber through the mixing chamber, then flows into the slow-flow chamber through a second through hole on the inner ring wall, and then into the slotted flame hole; and a third channel where gas enters the central chamber directly through the mixing chamber, then flows into the slow-flow chamber from the upper part of the inner ring wall, and then into the slotted flame hole. These three gas channels slow down the gas flow rate, resulting in a stable flame and preventing flame lift-off under cold and high-pressure conditions. The first and second through holes are easy to clean; overflow can flow directly downwards through the first through hole, preventing blockages and providing a self-cleaning function. After routine cleaning of the burner cap, liquid does not easily accumulate in the first and second through holes, facilitating cleanliness and user maintenance, thus enhancing the user experience. Because of the presence of three channels, even if the first or second through hole is blocked by overflow in extreme cases, the remaining channels can still function normally, thus ensuring the flame stability of the inner ring flame cap. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of a burner according to an embodiment of the present invention.

[0032] Figure 2 This is a three-dimensional structural diagram of the inner ring flame cap according to an embodiment of the present invention.

[0033] Figure 3 This is a three-dimensional structural diagram of the upper heating cap according to an embodiment of the present invention.

[0034] Figure 4 This is a three-dimensional structural diagram of a base according to an embodiment of the present invention.

[0035] Figure 5 This is a cross-sectional three-dimensional structural diagram of the inner ring flame cap according to an embodiment of the present invention.

[0036] Figure 6 This is a cross-sectional view of the inner ring flame cap according to an embodiment of the present invention.

[0037] Figure 7 This is a cross-sectional view of a base according to an embodiment of the present invention.

[0038] Figure 8 This is a side view of the inner ring fire cover according to an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] Inner ring fire cap 100

[0041] Inner side 110

[0042] 120 on the outer side

[0043] Top cover 200

[0044] 210 slotted fire hole

[0045] Base 300

[0046] Inner wall 310

[0047] Base plate 320

[0048] First through hole 321

[0049] Inner ring wall 330

[0050] Second through hole 331

[0051] Central cavity 400

[0052] Mixing chamber 500

[0053] Slow-flow chamber 600

[0054] Slow flow section 700

[0055] Main ignition port 810

[0056] Auxiliary ignition port 820

[0057] Auxiliary ignition slot 830

[0058] Burner 900

[0059] First Channel X

[0060] Second Channel Y

[0061] Third Channel Z Detailed Implementation

[0062] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the following embodiments.

[0063] like Figure 1 As shown, this embodiment provides a burner 900, which includes an inner ring burner cap 100.

[0064] like Figures 2-8 As shown, the inner ring burner cap 100 includes an upper burner cap 200 and a base 300. The upper burner cap 200 is detachably fitted onto the base 300 to form a central cavity 400 and multiple slotted flame holes 210. The slotted flame holes 210 connect the central cavity 400 to the outside. A mixing chamber 500 is provided below the base 300, and the central cavity 400 connects to the mixing chamber 500. The base 300 includes an inner sidewall 310. The upper end of the inner sidewall 310 extends radially inward toward the inner ring burner cap 100 to form a base plate 320. The base plate 320 is located above the mixing chamber 500. The inner side of the base plate 320 extends upward to form an inner ring wall 330. A slow-flow cavity 600 is formed between the base plate 320, the inner ring wall 330, and the slotted flame holes 210. The base plate 320 is provided with a plurality of first through holes 321 connecting the mixing chamber 500 and the slow flow chamber 600, and the inner ring wall 330 is provided with a plurality of second through holes 331 connecting the central cavity 400 and the slow flow chamber 600.

[0065] The inner ring burner cap 100 has a base plate 320 and an inner ring wall 330, and through holes are provided on the base plate 320 and the inner ring wall 330, so that the inner ring burner cap 100 includes three gas supply channels. The first channel X is from the mixing chamber 500 through the first through hole 321 on the base plate 320 into the slow flow chamber 600, and then into the slot burner hole 210; the second channel Y is from the mixing chamber 500 into the central cavity 400, and then through the second through hole 331 on the inner ring wall 330 into the slow flow chamber 600, and then into the slot burner hole 210; and the third channel Z is from the mixing chamber 500 into the central cavity 400, and then from the upper part of the inner ring wall 330 into the slow flow chamber 600, and then into the slot burner hole 210. By setting up three gas channels, the gas flow rate is slowed down, resulting in good flame stabilization and preventing flame lift-off under cold and high-pressure conditions. The first through-hole 321 and the second through-hole 331 are easy to clean; overflow can flow directly downwards through the first through-hole 321, preventing blockage and providing a self-cleaning function. After routine cleaning of the burner cap, liquid does not easily accumulate in the first through-hole 321 and the second through-hole 331, facilitating cleanliness and user maintenance, thus improving the user experience. Because of the three channels, even if the first through-hole 321 or the second through-hole 331 is blocked by overflow in extreme situations, the remaining channels can still function normally, further ensuring the flame stabilization of the inner ring burner cap 100.

[0066] like Figure 5As shown, in this embodiment, the upper end of the inner annular wall 330 is lower than the upper end of the air inlet of the slot flame hole 210, so that the gas from the third channel Z can more easily enter the slot flame hole 210, that is, enter the central cavity 400 from the mixing chamber. This prevents the gas entering the slot flame hole 210 from being excessively blocked by the inner annular wall 330, thus improving the flame stabilization effect. In other embodiments, the upper end of the inner annular wall 330 can also be flush with the upper end of the air inlet of the slot flame hole 210, or other settings deemed suitable by those skilled in the art can be selected.

[0067] like Figure 6 As shown, the inner diameter of the inner ring wall 330 is d1, the outer diameter is d2, and the wall thickness of the inner ring wall 330 is d = (d2 - d1) / 2, where 1 mm ≤ d ≤ 2 mm. The wall thickness is set within a reasonable range to avoid problems such as excessively low flow velocity and water droplet adhesion after cleaning. The height of the inner ring wall 330 is h2, the distance from the lower end of the slotted flame hole 210 to the lower surface of the bottom plate 320 is h3, and the height of the slotted flame hole 210 is H1, where h2 < h3 and H1 / 6 ≤ h3 - h2 ≤ H1 / 5. This ensures a more reasonable gas flow velocity in the third channel Z, resulting in optimal flame combustion. The inner diameter of the mixing chamber 500 is d0, where 10 ≤ d1 ≤ d0 / 2, ensuring that the gas flow velocity entering the central cavity 400 from the mixing chamber 500 is within a reasonable range. The distance from the lower end of the slot flame hole 210 to the outer side of the inner ring wall 330 is L1, 3mm < L1 < 4mm, which makes the size of the slow flow cavity 600 more reasonable and makes the gas flow velocity out of the exchange cavity more conducive to combustion.

[0068] like Figure 5 and Figure 7 As shown, in this embodiment, the second through hole 331 extends obliquely upward in a direction from the radially inner side to the radially outer side along the inner ring burner cap 100, thereby better guiding the combustion gas flowing from the lower mixing chamber 500 into the slow-flow chamber 600, and then into the slot burner hole 210 to participate in combustion. In other embodiments, the second through hole 331 may also extend horizontally, or other extension directions deemed suitable by those skilled in the art may be selected. For example... Figure 7 As shown, the width of the second through hole 331 is D2. Those skilled in the art can select an appropriate D2 size according to actual needs, so as to make the gas flow rate more reasonable and further improve the flame stabilization effect.

[0069] In this embodiment, the first through hole 321 and the second through hole 331 are staggered circumferentially along the inner ring burner cap 100, thereby making the gas flow rate and pressure entering the slot burner hole 210 in the circumferential direction of the inner ring burner cap 100 more uniform. This, in turn, makes the combustion of gas at the outlet of the slot burner hole 210 more stable, improves the problem of long and short flames, and further enhances the flame stabilization effect. In other embodiments, the first through hole 321 and the second through hole 331 can also be aligned, or other arrangements deemed suitable by those skilled in the art can be selected.

[0070] In this embodiment, the upper burner cap 200 includes an inner side surface 110, and the air inlet of the slotted flame hole 210 is located on the inner side surface 110. In the direction from below to above the inner ring burner cap 100, the inner side surface 110 is inclined radially inward towards the inner ring burner cap 100, thereby facilitating the flow of gas from the slow-flow chamber 600 into the slotted flame hole 210 and further improving the flame stabilization effect. In other embodiments, the inner side surface 110 may also be vertically oriented.

[0071] like Figure 6 As shown, the angle between the inner side 110 and the horizontal plane is θ1, 70°≤θ1≤75°, which makes the slow flow cavity 600 U-shaped, narrow at the top and wide at the bottom, which is more conducive to the flow of gas in the first channel X into the upper part of the slot flame hole 210, making the gas flow rate in the slot flame hole 210 more uniform, the flame combustion more stable, and the flame less likely to jump.

[0072] Multiple first through holes 321 are evenly spaced along the circumference of the inner ring burner cap 100, and multiple second through holes 331 are evenly spaced along the circumference of the inner ring burner cap 100. This makes the gas flowing out of the first through holes 321 and the second through holes 331 more uniform in the circumference of the inner ring burner cap 100, thereby making the gas flowing into the flame slot 210 more uniform and further improving the flame stabilization effect.

[0073] In the direction from the radial inner side to the radial outer side along the inner ring burner cap 100, the slotted flame hole 210 extends obliquely upward to make the depth of the slotted flame hole 210 greater, thereby reducing the gas flow rate. The oblique upward design is also more conducive to the gas flowing into the mixing chamber below entering the slotted flame hole 210, further improving the flame stabilization effect.

[0074] In the direction from below to above the inner ring burner cap 100, the outer surface 120 of the upper burner cap 200 is inclined radially inward towards the inner ring burner cap 100. The upper burner cap 200 also includes a flow-damping section 700, which extends radially outward from above the slot burner hole 210 to form the flow-damping section 700. By inclining the outer surface 120 of the upper burner cap 200 radially inward towards the inner ring burner cap 100, the spacing above the outlet of the slot burner hole 210 is reduced, such as... Figure 8 As shown, the distance between two adjacent slot flame holes 210 is y2 at the bottom and decreases to y1 at the top, which is more conducive to the mutual restraint of flames. At the same time, by setting a flow-slowing section 700 above the slot flame hole 210, the flow-slowing section 700 presses down on the flame, and the gas flows to both sides at the outlet of the slot flame hole 210, so that the flames of adjacent slot flame holes 210 are connected together, achieving a better flame stabilization effect. Figure 6 As shown, the distance between the edge of the slow flow section 700 and the top surface of the flame hole 210 is H0, where H0 = H1 / 5. Those skilled in the art can select the setting position of the slow flow section 700 according to actual needs, thereby achieving a better flame stabilization effect.

[0075] like Figure 6 As shown, the angle between the outer surface 120 and the horizontal plane is α. Those skilled in the art can select a suitable angle α according to actual needs.

[0076] like Figure 2 As shown, the inner ring burner cap 100 includes a main ignition hole 810 and an auxiliary ignition hole 820. The auxiliary ignition holes 820 are located on both sides of the main ignition hole 810. The inner diameter of the main ignition hole 810 gradually increases from the radially inner side to the radially outer side of the inner ring burner cap 100, thereby increasing the gas concentration at the ignition point and improving the ignition performance of the ignition hole during ignition. By gradually increasing the inner diameter of the main ignition hole 810 from the radially inner side to the radially outer side of the inner ring burner cap 100, the gas flow rate at the ignition hole outlet can be slowed down using the Venturi principle, further increasing the gas concentration and improving ignition performance. In this embodiment, an auxiliary ignition hole 820 is provided on each side of the main ignition hole 810. In other embodiments, other numbers and positions of the main ignition hole 810 and auxiliary ignition hole 820 that are deemed suitable by those skilled in the art can also be selected.

[0077] An auxiliary ignition slot 830 is provided below the main ignition port 810, which can further improve ignition efficiency. The auxiliary ignition slot 830 can be cleaned by removing the upper ignition cap 200 and the base 300, making cleaning more convenient.

[0078] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. An inner ring flame cap, characterized in that, The inner ring flame cap includes an upper flame cap and a base. The upper flame cap is detachably fitted onto the base to form a central cavity and multiple slot flame holes. The slot flame holes connect the central cavity to the outside. A mixing chamber is provided below the base, and the central cavity connects to the mixing chamber. The base includes an inner sidewall, the upper end of which extends radially inward toward the inner ring flame cap to form a base plate. The base plate is located above the mixing chamber. The inner side of the base plate extends upward to form an inner ring wall. A slow-flow cavity is formed between the base plate, the inner ring wall, and the flame slot. The base plate is provided with a plurality of first through holes connecting the gas mixing chamber and the slow flow chamber; the inner ring wall is provided with a plurality of second through holes connecting the central cavity and the slow flow chamber.

2. The inner ring flame cap as described in claim 1, characterized in that, The upper end of the inner ring wall is lower than the upper end of the air inlet of the slot fire hole.

3. The inner ring flame cap as described in claim 1, characterized in that, The second through hole extends obliquely upward in a direction from the radially inner side to the radially outer side along the inner ring fire cover.

4. The inner ring flame cap as described in claim 1, characterized in that, The first through hole and the second through hole are arranged in a staggered manner along the circumference of the inner ring fire cover.

5. The inner ring flame cap as described in claim 1, characterized in that, The upper burner cap includes an inner side surface, and the air inlet of the slotted burner hole is located on the inner side surface. In the direction from below to above the inner ring burner cap, the inner side surface is inclined radially inward towards the inner ring burner cap.

6. The inner ring flame cap as described in claim 1, characterized in that, Multiple first through holes are evenly spaced along the circumference of the inner ring fire cap; And / or, a plurality of second through holes are evenly spaced along the circumference of the inner ring fire cap.

7. The inner ring flame cap as described in claim 1, characterized in that, The slotted fire hole extends obliquely upward in a direction from the radially inner side to the radially outer side along the inner ring fire cover.

8. The inner ring flame cap as described in claim 7, characterized in that, In the direction from below to above the inner ring flame cap, the outer side of the upper flame cap is inclined radially inward towards the inner ring flame cap. And / or, the upper flame cap further includes a flow-retarding section, the outer side of the upper flame cap extending radially outward from the slot flame hole to form the flow-retarding section.

9. The inner ring flame cap as described in any one of claims 1-8, characterized in that, The inner ring flame cap includes a main ignition hole and an auxiliary ignition hole. The auxiliary ignition holes are located on both sides of the main ignition hole. The inner diameter of the main ignition hole gradually increases from the radially inner side to the radially outer side of the inner ring flame cap.

10. A burner, characterized in that, It includes an inner ring flame cap as described in any one of claims 1-9.

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