Gas control methods for gas valves and multi-ring burners

Abstract

This invention discloses a gas valve and a gas control method for a multi-ring burner. The method includes an inner ring outlet, a middle ring outlet, and an outer ring outlet that supply gas to the inner ring combustion section, middle ring combustion section, and outer ring combustion section of the multi-ring burner, respectively. When the inner ring outlet and middle ring outlet of the gas valve are open, and the outer ring outlet is closed, the maximum gas supply of the gas valve is defined as Q1. When all three outlets are open, the maximum gas supply of the gas valve is defined as Q2. The gas valve is structured such that Q1 > Q2. By increasing the heat load of the multi-ring burner when both rings are open, the method meets the user's need for concentrated high-heat cooking of food in the central area of ​​a wok. Simultaneously, by reducing the heat load of the multi-ring burner when all three rings are open, the method meets the user's need to cook with a large-sized frying pan when all three rings are on, avoiding localized overheating.

Description

Technical Field

[0001] This invention relates to the field of stove technology, and in particular to a gas valve and a gas control method for a multi-ring burner. Background Technology

[0002] Currently, the maximum firepower of household gas stoves is limited by national standards, requiring that the heat load not exceed the extreme value defined by the national standard (for example, the current national standard requires a heat load extreme value of 5.23KW, meaning that the heat load of a household gas stove must be less than or equal to 5.23KW). Under this national standard firepower limit, in the design of three-ring burners, to avoid exceeding the national standard heat load when all three rings are fully open, the gas supply distribution in the gas valve is designed so that the maximum gas supply of the inner ring combustion section + the maximum gas supply of the middle ring combustion section + the maximum gas supply of the outer ring combustion section should be less than or equal to the extreme heat load value. Therefore, when the inner and middle ring combustion sections of a three-ring burner are open, while the outer ring combustion section is closed, the heat load provided by the burner is insufficient to meet the demands of stir-frying.

[0003] Meanwhile, when the inner, middle, and outer ring combustion sections of the three-ring burner are simultaneously activated, the total load approaches the maximum heat load defined by national standards. Although the heat output is sufficient for stir-frying, the flame from the outer ring combustion section cannot effectively transfer heat to the food in the center of the wok, resulting in wasted heat. Furthermore, when all three rings are activated, if a large frying pan needs to be heated, the near-maximum heat load will cause uneven heating, leading to localized overheating in the central area of ​​the pan. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing gas supply scheme for a three-ring burner, which cannot meet the firepower required for stir-frying and the temperature uniformity during large-area heating, and to provide a gas valve and a gas control method for a multi-ring burner.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A gas valve having an inner ring outlet, a middle ring outlet, and an outer ring outlet for supplying gas to the inner ring combustion section, the middle ring combustion section, and the outer ring combustion section of a multi-ring burner, respectively;

[0007] When the inner ring outlet and the middle ring outlet of the gas valve are open, and the outer ring outlet is closed, the maximum gas supply of the gas valve is defined as Q1.

[0008] When the inner ring outlet, the middle ring outlet, and the outer ring outlet of the gas valve are all open, the maximum gas supply of the gas valve is defined as Q2, and the structure of the gas valve is set such that Q1 > Q2.

[0009] This gas valve ensures that the maximum gas supply Q1 when the inner and middle ring outlets are open, while the outer ring outlet is closed, is greater than the maximum gas supply Q2 when all three outlets are open. This results in the maximum heat load of the connected multi-ring burner being greater when the inner and middle ring combustion sections are open than when all three are open. By increasing the heat load of the multi-ring burner when both rings are open, it meets the user's need for concentrated high-heat cooking of food in the middle area of ​​a wok. At the same time, by reducing the heat load of the multi-ring burner when all three rings are open, the heat load when all three rings are open is lower than that when both rings are open. This allows users to cook with large-sized frying pans when all three rings are open, avoiding localized overheating.

[0010] Preferably, when the maximum gas supply of the gas valve is Q1, the gas supply at the inner ring outlet is defined as A. Q1 The gas supply at the outlet of the central ring road is B. Q1 A Q1 +B Q1 =Q1, when the maximum gas supply of the gas valve is Q2, the gas supply at the inner ring outlet is defined as A. Q2 The gas supply at the outlet of the central ring road is B. Q2 The gas supply at the outer ring outlet is C. Q2 A Q2 +B Q2 +C Q2 =Q2;

[0011] Among them, B Q1 >B Q2 .

[0012] The gas supply B at the middle ring outlet of the gas valve when the dual rings of the multi-ring burner are open. Q1 The gas supply at the exit of the Middle Ring Road is greater than B when the Third Ring Road is open. Q2 This is done by reducing the gas supply at the middle ring exit when the third ring road is open, thus providing sufficient space for the gas supply at the outer ring exit when the third ring road is open, ensuring that the gas supply when the third ring road is open is lower than the gas supply when the double ring road is open.

[0013] At the same time, by reducing the gas supply at the exit of the Middle Ring Road when the Third Ring Road is open (B) Q2This ensures that the middle ring combustion section of the multi-ring burner is not at its maximum gas supply level at this time, so as to prevent the gas in the outer ring combustion section that has not yet been ignited by the flame transmission hole from being ignited by the flame in the middle ring combustion section and causing deflagration in the outer ring combustion section.

[0014] Preferably, B Q2 <C Q2 .

[0015] The gas supply B at the middle ring outlet of the gas valve when the three rings of the multi-ring burner are open. Q2 The gas supply C at the outer ring outlet when the third ring road is open is less than the gas supply volume at the outer ring outlet. Q2 This is to improve the firepower of the outer ring combustion section of the multi-ring burner when the three rings are turned on, so as to meet the temperature uniformity requirements of users when heating a large area and avoid the situation where the temperature of the inner ring combustion section and the middle ring combustion section of the current multi-ring burner is too high when the three rings are turned on, resulting in uneven temperature when using a flat-bottomed pan.

[0016] And / or, B Q1 >C Q2 .

[0017] The gas supply B at the middle ring outlet of the gas valve when the dual rings of the multi-ring burner are open. Q1 The gas supply C at the outer ring outlet when the third ring road is open is greater than the gas supply volume at the outer ring outlet. Q2 This is achieved by increasing the gas supply at the middle ring outlet when both rings are open, so that the firepower of the multi-ring burner can meet the needs of concentrated high-heat cooking such as stir-frying.

[0018] Preferably, the gas valve further includes a gas knob, which can be rotated to change the gas supply of the gas valve;

[0019] The gas valve's maximum gas supply Q1 and the gas knob rotation positions corresponding to the maximum gas supply Q2 are arranged adjacent to each other.

[0020] By arranging the maximum gas supply positions Q1 and Q2 of the gas valve adjacent to each other, this avoids the problem of separating these two maximum gas supply positions in other settings, which would cause large fluctuations in gas flow when switching positions by rotating the gas knob, potentially leading to deflagration and other issues. Furthermore, the adjacent arrangement of the two maximum gas supply positions ensures that the transitions between high and medium flames in each combustion section of the multi-ring burner are also gradual and sequential, making it more intuitive and convenient for users to adjust the flame intensity.

[0021] Preferably, the gas knob rotation position corresponding to the maximum gas supply Q1 of the gas valve is closer to 0° than the gas knob rotation position corresponding to the maximum gas supply Q2 of the gas valve.

[0022] By setting the rotation position of the gas valve corresponding to the maximum gas supply Q1 closer to 0° than the rotation position of the maximum gas supply Q2, when the user starts adjusting the gas knob from 0° to adjust the flame, they can first adjust it to the maximum heat load position where the double rings of the multi-ring burner are open, and then further adjust it to the maximum heat load position where the triple rings of the multi-ring burner are open, so as to better match the user's operating habits.

[0023] Preferably, the gas valve further includes a gas knob, which can be rotated to change the gas supply of the gas valve;

[0024] The gas valve is configured such that, starting from 0° along the ignition direction of the gas knob, it sequentially includes a concentrated heating zone and a large-area heating zone. When the gas knob rotates from 0° to the concentrated heating zone, the inner ring outlet and the middle ring outlet open, while the outer ring outlet remains closed. As the gas knob continues to rotate, the gas supply to both the inner ring outlet and the middle ring outlet gradually increases. When the gas knob rotates from the concentrated heating zone to the large-area heating zone, the outer ring outlet opens and switches to its maximum gas supply value, while the gas supply to the middle ring outlet decreases.

[0025] By setting a concentrated heating zone and a large-area heating zone on the gas valve's gas knob, the system can simultaneously meet users' needs for both concentrated high-heat cooking and large-area high-heat cooking. The so-called "reduced gas supply at the central ring outlet" refers to decreasing the gas supply at the central ring outlet while ensuring combustion in the central ring combustion chamber; it does not mean reducing the gas supply at the central ring outlet to the point where the flame cannot burn.

[0026] Specifically, as the user rotates the gas control knob within the concentrated heating zone, the gas supply from the gas valve to both the inner and middle ring combustion sections gradually increases to meet the user's concentrated high-heat cooking needs of the multi-ring burner. Conversely, as the user rotates the gas control knob from the concentrated heating zone to the large-area heating zone, the gas valve supplies gas to the multi-ring burner, opening the outer ring combustion section while simultaneously reducing the gas supply to the middle ring combustion section. This allows the burner to switch to a large-area, high-heat state without exceeding its total load, thus satisfying the user's cooking needs.

[0027] Preferably, the structure of the gas valve is configured such that when the gas knob is rotated from the centralized heating zone to the large area heating zone, as the gas knob continues to rotate, the gas valve keeps the middle ring outlet open, the gas supply at the outer ring outlet gradually decreases, and after the gas supply at the outer ring outlet decreases to zero, the middle ring outlet is then closed.

[0028] As the gas knob continues to rotate, the gas supply to the outer and middle ring combustion chambers gradually decreases and eventually shuts off, thus adjusting the heat output of the outer and middle ring combustion chambers to meet the user's different cooking needs. Simultaneously, the middle ring combustion chamber remains open until the gas supply to the outer ring combustion chamber reaches zero to prevent popping or other abnormal noises from occurring there.

[0029] Preferably, the gas valve is configured such that after the gas supply at the middle ring outlet is reduced to zero, the gas supply at the inner ring outlet is then reduced.

[0030] As the gas knob continues to rotate, the gas supply to the middle and inner ring combustion chambers is reduced by decreasing the gas valve, thus reducing the heat output of the middle and inner ring combustion chambers to meet the user's cooking needs for different heat levels.

[0031] A gas control method for a multi-ring burner, comprising controlling the gas supply of a gas valve, the gas valve having an inner ring outlet, a middle ring outlet, and an outer ring outlet for supplying gas to the inner ring combustion section, the middle ring combustion section, and the outer ring combustion section of the multi-ring burner, respectively, and the gas control method comprising:

[0032] The gas supply of the gas valve is controlled such that the maximum gas supply Q1 when the inner ring outlet and the middle ring outlet are open and the outer ring outlet is closed is greater than the maximum gas supply Q2 when the inner ring outlet, the middle ring outlet and the outer ring outlet are all open.

[0033] The gas control method of this multi-ring burner increases the maximum gas supply Q1 of the gas valve when the inner and middle ring outlets are open and the outer ring outlet is closed, compared to the maximum gas supply Q2 when all three outlets are open. This ensures that the maximum heat load of the multi-ring burner is greater when the inner and middle ring combustion sections are open than when all three are open. This increases the heat load of the multi-ring burner when both rings are open, meeting the user's need for concentrated high-heat cooking of food in the central area of ​​a wok. Simultaneously, by reducing the heat load when all three rings are open, the heat load is lower than that when all three rings are open, allowing users to cook with large pans while avoiding localized overheating.

[0034] Preferably, when the maximum gas supply of the gas valve is Q1, the gas supply at the inner ring outlet is A. Q1 The gas supply at the outlet of the central ring road is B. Q1 A Q1+B Q1 =Q1, when the maximum gas supply of the gas valve is Q2, the gas supply at the inner ring outlet is A. Q2 The gas supply at the outlet of the central ring road is B. Q2 The gas supply at the outer ring outlet is C. Q2 A Q2 +B Q2 +C Q2 =Q2;

[0035] The gas control method further includes:

[0036] Control the gas supply of the gas valve so that B Q1 >B Q2 .

[0037] By controlling the gas supply of the gas valve, the gas supply B at the middle ring outlet of the gas valve when the dual rings of the multi-ring burner are open is controlled. Q1 The gas supply at the exit of the Middle Ring Road is greater than B when the Third Ring Road is open. Q2 This is done by reducing the gas supply at the middle ring exit when the third ring road is open, thus providing sufficient space for the gas supply at the outer ring exit when the third ring road is open, ensuring that the gas supply when the third ring road is open is lower than the gas supply when the double ring road is open.

[0038] At the same time, by reducing the gas supply at the exit of the Middle Ring Road when the Third Ring Road is open (B) Q2 This ensures that the middle ring combustion section of the multi-ring burner is not at its maximum gas supply level at this time, so as to prevent the gas in the outer ring combustion section that has not yet been ignited by the flame transmission hole from being ignited by the flame in the middle ring combustion section and causing deflagration in the outer ring combustion section.

[0039] Preferably, the gas supply of the gas valve is controlled so that B Q2 <C Q2 .

[0040] By controlling the gas supply of the gas valve, the gas supply B at the middle ring outlet when the three rings of the multi-ring burner are open is controlled. Q2 The gas supply C at the outer ring outlet when the third ring road is open is less than the gas supply volume at the outer ring outlet. Q2 This is to improve the firepower of the outer ring combustion section of the multi-ring burner when the three rings are turned on, so as to meet the temperature uniformity requirements of users when heating a large area and avoid the situation where the temperature of the inner ring combustion section and the middle ring combustion section of the current multi-ring burner is too high when the three rings are turned on, resulting in uneven temperature when using a flat-bottomed pan.

[0041] Preferably, the gas supply of the gas valve is controlled so that B Q1 >C Q2 .

[0042] By controlling the gas supply of the gas valve, the gas supply B at the middle ring outlet of the gas valve when the dual rings of the multi-ring burner are open is controlled. Q1 The gas supply C at the outer ring outlet when the third ring road is open is greater than the gas supply volume at the outer ring outlet. Q2 This is achieved by increasing the gas supply at the middle ring outlet when both rings are open, so that the firepower of the multi-ring burner can meet the needs of concentrated high-heat cooking such as stir-frying.

[0043] Preferably, the gas valve further includes a gas knob, which can be rotated to change the gas supply of the gas valve;

[0044] The gas control method further includes: setting the gas knob rotation positions corresponding to the maximum gas supply Q1 and the maximum gas supply Q2 of the gas valve adjacent to each other.

[0045] By arranging the maximum gas supply positions Q1 and Q2 of the gas valve adjacent to each other, this avoids the problem of separating these two maximum gas supply positions in other settings, which would cause large fluctuations in gas flow when switching positions by rotating the gas knob, potentially leading to deflagration and other issues. Furthermore, the adjacent arrangement of the two maximum gas supply positions ensures that the transitions between high and medium flames in each combustion section of the multi-ring burner are also gradual and sequential, making it more intuitive and convenient for users to adjust the flame intensity.

[0046] Preferably, the gas control method further includes: making the rotation position of the gas knob corresponding to the maximum gas supply Q1 of the gas valve closer to 0° relative to the rotation position of the gas knob corresponding to the maximum gas supply Q2 of the gas valve.

[0047] By setting the rotation position of the gas valve corresponding to the maximum gas supply Q1 closer to 0° than the rotation position of the maximum gas supply Q2, when the user starts adjusting the gas knob from 0° to adjust the flame, they can first adjust it to the maximum heat load position where the double rings of the multi-ring burner are open, and then further adjust it to the maximum heat load position where the triple rings of the multi-ring burner are open, so as to better match the user's operating habits.

[0048] Preferably, the gas valve further includes a gas knob, which can be rotated to change the gas supply of the gas valve;

[0049] The gas control method further includes, starting from 0° along the ignition direction of the gas knob, a centralized heating zone and a large-area heating zone in sequence. When the gas knob rotates from 0° to the centralized heating zone, the inner ring outlet and the middle ring outlet open, while the outer ring outlet remains closed. As the gas knob continues to rotate, the gas supply of both the inner ring outlet and the middle ring outlet gradually increases. When the gas knob rotates from the centralized heating zone to the large-area heating zone, the outer ring outlet opens and switches to its maximum gas supply value, while the gas supply of the middle ring outlet decreases.

[0050] By setting a concentrated heating zone and a large-area heating zone on the gas valve's gas knob, the system can simultaneously meet users' needs for both concentrated high-heat cooking and large-area high-heat cooking. The so-called "reduced gas supply at the central ring outlet" refers to decreasing the gas supply at the central ring outlet while ensuring combustion in the central ring combustion chamber; it does not mean reducing the gas supply at the central ring outlet to the point where the flame cannot burn.

[0051] Specifically, as the user rotates the gas control knob within the concentrated heating zone, the gas supply from the gas valve to both the inner and middle ring combustion sections gradually increases to meet the user's concentrated high-heat cooking needs of the multi-ring burner. Conversely, as the user rotates the gas control knob from the concentrated heating zone to the large-area heating zone, the gas valve supplies gas to the multi-ring burner, opening the outer ring combustion section while simultaneously reducing the gas supply to the middle ring combustion section. This allows the burner to switch to a large-area, high-heat state without exceeding its total load, thus satisfying the user's cooking needs.

[0052] Preferably, the gas control method further includes: after the gas knob is rotated from the centralized heating zone to the large area heating zone, as the gas knob continues to rotate, the gas valve keeps the middle ring outlet open, the gas supply at the outer ring outlet gradually decreases, and after the gas supply at the outer ring outlet decreases to zero, the middle ring outlet is then closed.

[0053] As the gas knob continues to rotate, the gas supply to the outer and middle ring combustion chambers gradually decreases and eventually shuts off, thus adjusting the heat output of the outer and middle ring combustion chambers to meet the user's different cooking needs. Simultaneously, the middle ring combustion chamber remains open until the gas supply to the outer ring combustion chamber reaches zero to prevent popping or other abnormal noises from occurring there.

[0054] Preferably, the gas control method further includes: after the gas supply at the middle ring outlet is reduced to zero, the gas supply at the inner ring outlet is further reduced.

[0055] As the gas knob continues to rotate, the gas supply to the middle and inner ring combustion chambers is reduced by decreasing the gas valve, thus reducing the heat output of the middle and inner ring combustion chambers to meet the user's cooking needs for different heat levels.

[0056] The positive and progressive effects of this invention are as follows:

[0057] The gas control method for gas valves and multi-ring burners increases the heat load of the multi-ring burner when both rings are open, thus meeting the user's need for concentrated high-heat cooking of food in the middle area of ​​the wok.

[0058] Meanwhile, by reducing the heat load of the multi-ring burner when the three rings are on, the heat load when the three rings are on is actually lower than the heat load when the two rings are on, so as to meet the user's need to use a large-sized frying pan for cooking when the three rings are on, and avoid local overheating. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of the structure of the three-ring burner of Embodiment 1 of the present invention.

[0060] Figure 2 This is a top view of the three-ring burner according to Embodiment 1 of the present invention.

[0061] Figure 3 This is a schematic diagram of the gas valve in Embodiment 1 of the present invention.

[0062] Figure 4 This is a schematic diagram showing the rotation angle distribution of the gas knob of the gas valve in Embodiment 1 of the present invention.

[0063] Figure 5 This is a schematic diagram of the heat load of the three-ring burner in each section according to Embodiment 1 of the present invention.

[0064] Figure 6 This is a schematic diagram of the heat load of the three-ring burner in each section according to Embodiment 2 of the present invention.

[0065] Explanation of reference numerals in the attached figures

[0066] The three-ring burner 100 has circumferential direction X, radial direction Y, and axial direction Z.

[0067] Inner ring combustion section 1

[0068] Central ring combustion section 2

[0069] Outer ring combustion section 3

[0070] Inner flame cap 41

[0071] Outer flame cap 42,

[0072] Gas distribution plate 5

[0073] Base 6

[0074] Inner ring ejector tube 71

[0075] 72-ring ejector tube

[0076] Outer ring ejector tube 73

[0077] Gas valve 8

[0078] Valve stem 81

[0079] Inner Ring Exit 82

[0080] Central Exit 83

[0081] Outer Ring Exit 84 Detailed Implementation

[0082] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0083] Example 1

[0084] like Figure 1 As shown, this embodiment provides a three-ring burner 100, specifically a three-channel three-ring burner, which is applied in a gas stove. The combustion and extinguishing of the three ring flames (inner ring, middle ring, and outer ring) are controlled by three sets of gas channels to achieve different flame combinations and meet different heating and cooking needs of users. For example, Figure 1 As shown, the circumferential direction of the three-ring burner 100 is defined as X, the radial direction as Y, and the axial direction as Z. Figure 1 and Figure 2 As can be seen, the three-ring burner 100 has three rings of combustion sections arranged from the inside to the outside along its radial direction Y: an inner ring combustion section 1, a middle ring combustion section 2, and an outer ring combustion section 3. The inner ring combustion section 1 is formed separately on the inner flame cap 41, while the middle ring combustion section 2 and the outer ring combustion section 3 are formed on the same flame cap, i.e., simultaneously on the outer flame cap 42. However, the gas passages between the two combustion sections are separated to allow for independent opening and closing. The inner ring combustion section 1 is connected to the middle inner ring ejector tube 71 and is supplied with gas through the gas nozzle at the inner ring ejector tube 71. The middle ring combustion section 2 is connected to the right middle ring ejector tube 72 and is supplied with gas through the gas nozzle at the middle ring ejector tube 72. The outer ring combustion section 3 is connected to the left outer ring ejector tube 73 and is supplied with gas through the gas nozzle at the outer ring ejector tube 73. The gas from each ejector tube flows through the base 6 and the gas distribution plate 5, and after being distributed by the gas flow direction of the base 6 and the gas distribution plate 5, it flows to the corresponding combustion section.

[0085] like Figure 3The diagram shows the structure of the gas valve 8 connected to the three-ring burner 100 in this embodiment. By rotating the gas knob (not shown) located on top of the gas valve 8, the valve stem 81 and the stopper (not shown) inside the gas valve 8 rotate synchronously. Different sized connecting holes are opened on the surface of the stopper at the corresponding rotation angle, so as to change the gas supply quantity and ratio through the cooperation of the stopper and the valve body. The inner ring outlet 82 of the gas valve 8 is connected to the gas nozzle of the inner ring ejector tube 71 through a pipe, the middle ring outlet 83 is connected to the gas nozzle of the middle ring ejector tube 72 through a pipe, and the outer ring outlet 84 is connected to the gas nozzle of the outer ring ejector tube 73 through a pipe, so as to form three independent gas channels and realize three independent control of the three-channel three-ring burner 100.

[0086] Specifically, to address the issue that while current multi-ring burners can meet stir-frying demands with the inner, middle, and outer rings operating simultaneously, the flame from the outer ring burner cannot effectively transfer heat to the food in the center of the pan, resulting in wasted heat. Furthermore, when heating large pans, uneven heating can occur, leading to localized overheating in the central area. This embodiment provides a gas distribution scheme for gas valve 8 and a gas control scheme for multi-ring burners. Gas valve 8 controls the gas flow to the inner ring burner 1, middle ring burner 2, and outer ring burner 3 of the three-ring burner 100, enabling the burner to achieve both concentrated high heat and large-area high heat cooking states, thus meeting diverse user cooking needs.

[0087] Specifically, the rotation angle distribution of the gas valve 8 provided in this embodiment is as follows: Figure 4 As shown, the gas valve 8 used in this embodiment is a segment valve, which can stop at 0°, 45°, 65°, 90°, 135°, 175°, 210°, 235°, 260° and 285° respectively, so as to divide the gas knob into nine segments based on the rotation angle, so as to facilitate the user's precise gas control operation.

[0088] The 0°–135° range is the concentrated heating zone, while the 135°–175° range is the large-area heating zone. After 175°, the gas valve 8 stops supplying gas to the outer ring combustion section 3 and the middle ring combustion section 2, causing the outer ring combustion section 3 and the middle ring combustion section 2 to close sequentially to meet the heating requirements of the small flame. The gas supply amount of each combustion section's corresponding gas passage at each stage is shown in the table below:

[0089]

[0090]

[0091] Specifically, when the user rotates the gas knob, the gas valve 8, driven by the gas knob, moves from the zero point ( Figure 4 The oscillator begins to rotate from 0° to 0°, and then rotates into the concentrated heating zone. Figure 4 At 0°~135°, the inner ring combustion section 1 and the middle ring combustion section 2 are in section 1 ( Figure 4 The gas knob is turned on at 45° (in the middle), and the outer ring combustion section 3 is not turned on. As the gas knob continues to rotate, it will turn to position 2 in sequence. Figure 4 (65°) and 3 segments ( Figure 4 At 90° (in the middle), the gas supply to both the inner ring combustion section 1 and the middle ring combustion section 2 gradually increases from a small gas flow to a large gas flow. Specifically, when the gas knob is rotated to position 3 (…),… Figure 4 When the flame is at 90°, the inner ring combustion section 1 and the middle ring combustion section 2 are both high-volume combustion sections. The gas supply of both rings reaches its maximum value. Users can stir-fry with both rings on, which meets the user's need for concentrated high heat and avoids the situation in the current technology where the burner must be in the state of three rings on for stir-frying, and the heat provided by the outer ring is wasted.

[0092] When the gas knob is rotated to position 4, it moves from the concentrated heating zone to the large-area heating zone. Figure 4 When the temperature reaches 135°C, the outer ring combustion section 3 activates and directly switches to its maximum gas supply. Simultaneously, the gas supply to the middle ring combustion section 2 decreases, becoming a medium gas flow. With the three-ring burner activated, users can cook with large-sized pans, satisfying the need for large-area heating without causing localized overheating due to excessive heat load at the inner ring combustion section 1 and the middle ring combustion section 2. Therefore, this gas control method can achieve both concentrated high heat (3 levels) and large-area high heat (4 levels) states, while ensuring the total load does not exceed the limit, to adapt to the user's actual cooking needs.

[0093] In other words, when the gas knob is rotated to position 3, the sum of the high airflow in the inner ring combustion section 1 and the high airflow in the middle ring combustion section 2 does not exceed the total load of the three-ring burner 100 (i.e., Figure 5(The dotted line in the image). Simultaneously, when the gas knob is rotated to position 4, the combined airflow of the inner ring combustion section 1 (high airflow), the middle ring combustion section 2 (medium airflow), and the outer ring combustion section 3 (high airflow) does not exceed the total load of the three-ring burner 100. In this situation, by reducing the gas supply to the middle ring combustion section 2 when switching to position 4, the heat load of the middle ring combustion section 2 is reduced, ensuring that the total load of the three-ring burner 100 approaches but does not exceed that of the three-ring burner 100 in both positions 3 and 4. This solves the problem in the current technology where the burner's heat load is insufficient when only the inner ring combustion section 1 and the middle ring combustion section 2 (i.e., position 3) are activated, failing to meet the demands of stir-frying. This allows the burner to achieve its "extreme fire" state when the gas valve 8 is switched to positions 3 and 4. By achieving a "dual-stage fire" state, the heat load when the inner and middle rings of the three-ring burner 100 are open, as well as when the inner, middle, and outer rings are open, can approach but not exceed the total load of the three-ring burner 100, thus meeting the user's needs for concentrated high heat and large-area high heat cooking.

[0094] In other words, as the user rotates the gas control knob within the concentrated heating zone, the gas supply to both the inner ring combustion section 1 and the middle ring combustion section 2 gradually increases to meet the user's demand for concentrated high-heat cooking. Conversely, as the user rotates the gas control knob from the concentrated heating zone to the large-area heating zone, the outer ring combustion section 3 activates while the gas supply to the middle ring combustion section 2 decreases. This allows the system to switch to a large-area, high-heat state without exceeding the burner's total load, thus satisfying the user's cooking needs.

[0095] Specifically, this embodiment further provides a preferred gas control scheme, such as... Figure 5 As shown, by adjusting the position of the closed-end orifice of the gas valve 8, the maximum gas supply Q1 of the gas valve 8 to the three-ring burner in the dual-ring opening mode (i.e., the inner ring combustion section 1 and the middle ring combustion section 2 are open, and the outer ring combustion section 3 is closed) is actually greater than the maximum gas supply Q2 in the three-ring opening mode (i.e., the inner ring combustion section 1, the middle ring combustion section 2, and the outer ring combustion section 3 are all open). This allows the three-ring burner to achieve the "dual-stage fire" mode. In the dual-ring opening mode, the heat load of the three-ring burner meets the high heat demand for concentrated stir-frying, while the total heat load in the three-ring opening mode is not too large, thus meeting the user's temperature uniformity requirements when using large-size cookware for large-area heating.

[0096] Meanwhile, in the gas rotation direction of gas valve 8, the maximum gas supply corresponding to the dual-ring opening mode of the burner is located at position 3, and the maximum gas supply corresponding to the triple-ring opening mode is located at position 4. These two gas positions are arranged adjacently to avoid the separation of the two maximum gas supply positions as in other designs, which could cause large fluctuations in gas flow when switching positions, leading to problems such as deflagration. Furthermore, the two extreme flame positions are adjacent, and the high and medium flames in each combustion section also gradually transition adjacently, making it more convenient for users to switch positions and adjust the flame intensity.

[0097] Furthermore, after the gas knob is rotated from the centralized heating zone to position 4 ( Figure 4 After 135°, as the gas knob continues to rotate, the middle ring combustion chamber 2 remains open, and the gas supply to the outer ring combustion chamber 3 gradually decreases. Specifically, the outer ring combustion chamber 3 at position 5 ( Figure 4 At 175°, the airflow becomes moderate, and at stage 7, it becomes zero. It can be seen that in the outer ring combustion section 3, from stage 5 to stage 6... Figure 4 During the process of the gas supply (210°) gradually decreasing and eventually reaching zero, the middle ring combustion chamber 2 remains open to avoid knocking or abnormal noises at the middle ring combustion chamber 2. Specifically, at stage 5, the middle ring combustion chamber 2 has a small airflow, while at stage 6, it has a medium airflow.

[0098] After that, at stage 6, that is, after the gas supply to the outer ring combustion section 3 is zero, the middle ring combustion section 2 at stage 7 ( Figure 4 (235°) to 9th position ( Figure 4 The gas supply at 285° gradually decreases to meet users' cooking needs for different heat levels by reducing the heat output of the middle ring combustion section 2. Simultaneously, from level 7 to level 9, the gas supply to the inner ring combustion section 1 gradually decreases, changing from a medium airflow to a low airflow. Finally, at level 9, both the outer ring combustion section 3 and the middle ring combustion section 2 are closed, with only the inner ring combustion section 1 open and maintaining a low airflow. Specifically, the level angle of the gas valve 8 provided in this embodiment, the gas outlet logic of each combustion section, and the total heat output are shown in the table below:

[0099]

[0100]

[0101] In this embodiment, as the gas knob rotates from 0°, the three-ring burner 100 is in a double-ring open mode. At 90°, the gas valve 8 reaches the maximum gas supply Q1. Immediately following, at the next rotation position of 135°, the three-ring burner 100 switches to a three-ring open mode, and the gas valve 8 reaches the maximum gas supply Q2. Afterward, as the gas knob continues to rotate, the flame of the three-ring burner 100 gradually decreases. Specifically, in this embodiment, the rotation positions of the maximum gas supply Q1 (90°) and Q2 (135°) are arranged adjacently. This is to avoid separating these two maximum gas supply positions in other setting schemes, which would cause large fluctuations in the gas flow rate when rotating the gas knob to switch positions, leading to problems such as deflagration. Simultaneously, the adjacent proximity of the two maximum gas supply positions ensures that the changes in the large and medium flames of each combustion section of the multi-ring burner are also adjacent and gradual, making it more intuitive and convenient for the user to switch positions and adjust the flame. Therefore, in other embodiments, other positions with smaller gas supply can be set between the rotation positions of the maximum gas supply Q1 and the maximum gas supply Q2 of the gas valve. The specific gas supply scheme for each rotation position can be set according to actual needs.

[0102] Meanwhile, in this embodiment, the rotation position (90°) of the gas valve corresponding to the maximum gas supply Q1 is set closer to 0° than the rotation position (135°) of the maximum gas supply Q2. This allows the user to adjust the flame by rotating the gas knob from 0° to the maximum heat load position of the multi-ring burner with both rings open, and then further rotate and adjust it to the maximum heat load position of the multi-ring burner with all three rings open, so as to better match the user's operating habits.

[0103] Of course, in other embodiments, it is also possible to first...

[0104] Furthermore, the relationship between the position angle of the gas valve 8 in this embodiment and the number of ventilation rings of the three-ring burner 100, as well as the gas supply to each combustion section, is shown in the following table:

[0105]

[0106]

[0107] Among them, the gas valve 8 supplies the maximum gas to the three-ring burner 100 at 90°, corresponding to the maximum gas supply Q1, making the total load of the three-ring burner around 5000W, but at this time only the inner ring combustion section 1 and the middle ring combustion section 2 are open. Figure 5As shown, during the process of turning the gas knob of gas valve 8 from 90° to 135°, the gas supply to the middle ring combustion section 2 decreases rapidly, with B3 > B4. When the knob is turned to 135°, the outer ring combustion section 3 also opens, and the gas supply to the three rings is at its maximum value, corresponding to the maximum gas supply Q2, but still less than the sum of the gas supply to the two rings at 90° (maximum gas supply Q1). At 135°, the total burner load is around 4500W. This is to reduce the gas supply to the middle ring combustion section 2 when the gas knob is switched to 135°, so as to prevent unignited gas from being ignited by the flame of the middle ring combustion section 2 during the flameout process of the outer ring combustion section 3, thus avoiding deflagration.

[0108] In addition, in this embodiment, in order to ensure that the gas supply from gas valve 8 to the burner is at the maximum gas supply level in the dual-ring fire mode, it is necessary to adjust the shut-off valve of gas valve 8 at B3(B Q1 ) and B4 (B Q2 The aperture size at B4 (B) is strictly controlled to ensure that the closure element is within the specified range. Q2 The aperture at point B is much smaller than that at point B3 (B Q1 The aperture at ().

[0109] Meanwhile, in order to improve the firepower of the outer ring combustion section of the multi-ring burner when the three rings are open, meet the temperature uniformity requirements of users when heating large areas, and avoid the current multi-ring burner having excessively high temperatures in the inner and middle ring combustion sections when the three rings are open, resulting in uneven temperature when using a flat-bottomed pan, the gas supply volume B4(B) at the middle ring outlet 83 of the gas valve when the three rings of the multi-ring burner are open is adjusted. Q2 The gas supply at the outer ring outlet 84 when the third ring road is open should be less than C1 (C Q2 ),

[0110] In addition, to ensure that the flame intensity of the multi-ring burner when both rings are open meets the requirements of concentrated high-heat cooking such as stir-frying, the gas supply at the middle ring outlet 83 when both rings are open can be appropriately increased, so that the gas supply B3(B) at the middle ring outlet 83 when the multi-ring burner is open can be increased. Q1 The gas supply at the outer ring outlet 84 when the third ring road is open is greater than C1(C). Q2 ).

[0111] It should be noted that the degree of change in gas supply in each combustion section of the gas valve 8 provided in this embodiment from section 1 to section 9, and the so-called "small airflow," "medium airflow," and "large airflow" are only relative relationships of the gas supply changes in the gas passage of each individual combustion section. The values ​​of "small airflow," "medium airflow," and "large airflow" are not the same between the gas passages of different combustion sections.

[0112] Taking this embodiment as an example, in the case of a three-channel three-ring burner 100, the gas supply of the middle ring combustion section 2, i.e., the middle ring channel, is usually larger than that of the inner ring combustion section 1 and the outer ring combustion section 3. Specifically, the "high airflow" of the middle ring channel of the middle ring combustion section 2 is greater than that of the inner ring combustion section 1 and the outer ring combustion section 3; the "medium airflow" of the middle ring channel of the middle ring combustion section 2 is greater than that of the inner ring combustion section 1 and the outer ring combustion section 3; and the "low airflow" of the middle ring channel of the middle ring combustion section 2 is greater than that of the inner ring combustion section 1 and the outer ring combustion section 3. This is because the heating area of ​​the middle ring combustion section 2 is larger than that of the inner ring combustion section 1, and its usage frequency is higher than that of the outer ring combustion section 3. Of course, this is only one gas distribution scheme in this embodiment. In other embodiments, especially in multi-ring burners different from three-ring burners, other gas distribution schemes can also be adopted to simultaneously meet the different cooking needs of users for concentrated high heat and large-area high heat.

[0113] During the rotation of the gas knob, the gas is distributed according to the aforementioned gas supply scheme. This can be achieved in various ways on the burner. It can be implemented using a traditional mechanical structure by adjusting the opening position of the gas valve 8's gate. Alternatively, a control module can be used to electrically control the opening of the solenoid valves in each gas channel based on the rotation angle of the gas knob, thereby adjusting the gas supply. Specific implementation methods can utilize existing technologies, and therefore will not be elaborated upon here.

[0114] Example 2

[0115] This embodiment also provides a gas control method for a three-ring burner, which is also based on the gas valve 8 to distribute gas to different combustion sections of the three-ring burner. The main difference between this method and the gas control method for the burner provided in Embodiment 1 is the difference in the gas supply at different angles of the gas valve 8.

[0116] Similar to Example 2, the gas knob operates within a concentrated heating range of 0° to 135°, while the range of 135° to 175° represents a large-area heating range. Unlike Example 1, as... Figure 6 As shown in the table below, the gas supply amount for each combustion chamber's corresponding gas passage at each stage is as follows:

[0117]

[0118] Among them, corresponding to the table, Figure 6The circles at each endpoint of the broken line represent the opening status of each combustion section at the current angle. The central point corresponds to the inner ring combustion section 1, with sizes ranging from smallest to largest corresponding to the "small airflow," "medium airflow," and "large airflow" of the inner ring channel, respectively. The circles outside the central point correspond to the middle ring combustion section 2, with sizes ranging from smallest to largest corresponding to the "small airflow," "medium airflow," and "large airflow" of the middle ring channel, respectively. If this circle is not displayed, it corresponds to "no airflow" in the middle ring channel of the middle ring combustion section 2. The outermost circle corresponds to the outer ring combustion section 3, with sizes ranging from smallest to largest corresponding to the "medium airflow" and "large airflow" of the outer ring channel, respectively. If this circle is not displayed, it corresponds to "no airflow" in the outer ring channel of the outer ring combustion section 3.

[0119] From the table above and Figure 6 As can be seen, the gas control method of the burner in this embodiment can also form large flame 1 (concentrated high firepower) and large flame 2 (large area high firepower) at the 3rd stage (90°) and 4th stage (135°). The main difference is that in this embodiment, at the 4th stage, the gas supply of the inner ring combustion section 1 is switched to medium airflow, while the gas supply of the middle ring combustion section 2 is switched to low airflow, so that the total load of the burner at the 3rd stage is slightly higher than the total load at the 4th stage.

[0120] Taking specific values ​​as an example: In this embodiment, the total load of the burner is limited to 5000W. When the gas knob is rotated to position 3 at 90°, the heat load of the inner ring combustion section 1 under the large airflow condition is 1700W, and the heat load of the middle ring combustion section 2 under the large airflow condition is 3300W. The total heat load is 5000W, thus limiting the total load of the burner.

[0121] Within the 90°–110° range, the airflow in the middle ring combustion section 2 decreases sharply to a low airflow state. Within the 110°–35° range, the airflow in the middle ring combustion section 2 remains relatively stable, maintaining a low airflow state. As for the outer ring combustion section 3, within the 90°–110° range, the outer ring combustion section 3 maintains a no-airflow state. Within the 110°–125° range, the airflow in the outer ring combustion section 3 increases sharply to a high airflow state, and remains in a high airflow state within the 125°–135° range.

[0122] Therefore, when the gas knob is rotated to position 4 at 135°, the heat load of the inner ring combustion section 1 in medium airflow is 1600W, the heat load of the middle ring combustion section 2 in low airflow is 1400W, and the heat load of the outer ring combustion section 3 in high airflow is 1100W. The total heat load is 4100W, which is lower than the 5000W when the dual rings are turned on at 90°. This meets the user's need for uniform heating when cooking with large pots and avoids local overheating of the pot.

[0123] Regarding the selection of the heat load for the outer ring combustion section 3, the current embodiment provides a heat load of 1100W under high airflow conditions, which is significantly lower than the heat load selection for the middle ring combustion section 2 (3300W under high airflow conditions). This is because if the heat load of the outer ring combustion section 3 is too high, during the process of rotating from the concentrated heating zone to the large-area heating zone, even if the gas supply of the middle ring combustion section is reduced, the total load of the burner may fluctuate with the opening of the outer ring combustion section 3, making it impossible to change relatively smoothly. At the same time, it is also prone to detonation. Of course, the heat load of the outer ring combustion section 3 cannot be too low either, to avoid flame transmission problems, that is, the outer ring combustion section 3 is open and gas is being produced but not ignited.

[0124] It should be clearly stated that the gas control method of the burner provided in Embodiments 2 and 3 is only for illustrative purposes. In other embodiments, this scheme can also be applied to other non-triple-ring burners. At the same time, this scheme can also be implemented in the gas valve 8 in the form of a non-stage valve to achieve the same cooking requirements of both concentrated high heat and large area high heat.

[0125] 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. A gas valve, characterized in that The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve.

2. The gas valve of claim 1, wherein At the maximum gas supply of the gas valve Q1, define the gas supply at the inner ring outlet as A Q1 , the gas supply at the middle ring outlet as B Q1 , A Q1 +B Q1 =Q1, at the maximum gas supply of the gas valve Q2, define the gas supply at the inner ring outlet as A Q2 , the gas supply at the middle ring outlet as B Q2 , the gas supply at the outer ring outlet as C Q2 , A Q2 +B Q2 +C Q2 =Q2; B Q1 B Q2 ; and / or, B Q2 <C Q2 ; and / or, B Q1 > C Q2 .

3. The gas valve of claim 1, wherein The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve.

4. The gas valve of claim 1, wherein The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve.

5. A gas valve as claimed in claim 4, characterised in that The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve.

6. A method of gas control for a multi-ring fire burner, characterized by, The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve.

7. The method of gas control for a multi-ring fire burner of claim 6, wherein, at a maximum gas supply of the gas valve Q1, the gas supply at the inner ring outlet is A Q1 , the gas supply at the middle ring outlet is B Q1 , A Q1 +B Q1 =Q1, at a maximum gas supply of the gas valve Q2, the gas supply at the inner ring outlet is A Q2 , the gas supply at the middle ring outlet is B Q2 , the gas supply at the outer ring outlet is C Q2 , A Q2 +B Q2 +C Q2 =Q2; The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve. controlling the amount of gas supplied to the gas valve such that B Q1 > B Q2 ; and / or controlling the amount of gas supplied to the gas valve such that B Q2 <C Q2 ; and / or controlling the amount of gas supplied to the gas valve such that B Q1 > C Q2 .

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9. The method of gas control for a multi-ring fire burner of claim 6, wherein, The gas valve further comprises a gas knob which is rotated to change the gas supply amount of the gas valve; The gas control method further comprises: sequentially comprising a concentrated heating interval and a large-area heating interval from 0° in the fire adjusting direction of the gas knob, when the gas knob is rotated from 0° to the concentrated heating interval, the inner ring outlet and the middle ring outlet are opened, and the outer ring outlet is not opened, and as the gas knob continues to rotate, the gas supply amount of the inner ring outlet and the middle ring outlet gradually increases; when the gas knob is rotated from the concentrated heating interval to the large-area heating interval, the outer ring outlet is opened and switched to the maximum gas supply amount, and the gas supply amount of the middle ring outlet decreases.

10. The method of gas control for a multi-ring fire burner of claim 9, wherein, The gas control method further comprises: after the gas knob is rotated from the concentrated heating interval to the large-area heating interval, as the gas knob continues to rotate, the gas valve keeps the middle ring outlet open, and the gas supply amount of the outer ring outlet gradually decreases, and after the gas supply amount of the outer ring outlet decreases to zero, the middle ring outlet is closed again; And / or, the gas control method further comprises: after the gas supply amount of the middle ring outlet decreases to zero, the gas supply amount of the inner ring outlet is further decreased.

Images