CN219775812U - Combustor and gas stove with same - Google Patents

Abstract

The utility model provides a combustor and a gas cooker with the same. Wherein the burner comprises: the furnace plate structure is provided with a first gas transmission channel; the igniter is arranged on the stove plate structure; the thermocouple is arranged on the furnace plate structure and is arranged at intervals with the igniter; the inner fire cover structure is arranged on the stove plate structure and is adjacent to the igniter and the thermocouple respectively, the inner fire cover structure is provided with an extremely small fire air passage, the extremely small fire air passage is communicated with the first gas transmission passage, the inner fire cover structure is provided with an extremely small fire hole, a maintenance fire hole and a fire protection hole, the fire protection hole is communicated with the extremely small fire air passage and is positioned at a position opposite to the thermocouple, a plurality of maintenance fire holes are communicated with the extremely small fire air passage and are positioned between the igniter and the thermocouple, and the density of the plurality of maintenance fire holes is larger than that of the plurality of extremely small fire holes. The technical scheme of the utility model effectively solves the problem that in the prior art, the gas stove is easy to flameout in a small fire or extremely small fire gear.

Description

Combustor and gas stove with same

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a combustor and a gas cooker with the same.

Background

Gas stoves generally refer to kitchen appliances that heat directly on a fire using a gas fuel such as liquefied petroleum gas (liquid), artificial gas, or natural gas. The gas stove is generally divided into a single stove, a double stove, a multi-hole stove and the like according to the number of stove holes, wherein a burner is arranged in each group of stove holes, and the flow of gas in the burner can be regulated through a valve so as to regulate the fire power. For example, the intake air amount of the burner is increased at the time of high-temperature quick-frying, and the intake air amount of the burner is decreased at the time of low-temperature stewing.

At present, when some gas stoves in the market are in a small fire or extremely small fire gear, flames are easy to extinguish, and the use and user experience of the gas stoves are affected. Some gas stoves increase the combustion temperature by increasing the aperture of very small fire holes, thereby reducing the occurrence of flame extinction. However, the flame with increased aperture easily contacts the nearby thermocouple structure, which causes oxidation of the thermocouple, reduces the sensitivity of the thermocouple, easily causes flameout of the gas stove, and further affects the service life of the gas stove and the use feeling of the user.

Disclosure of Invention

The utility model provides a burner and a gas stove with the burner, which are used for solving the problem that a gas stove in the prior art is easy to flameout in a small fire or extremely small fire gear. To achieve one or some or all of the above or other objects, in one aspect, the present utility model provides a burner comprising: the furnace plate structure is provided with a first gas transmission channel; the igniter is arranged on the stove plate structure; the thermocouple is arranged on the furnace plate structure and is arranged at intervals with the igniter; the inner fire cover structure is arranged on the fire plate structure and is adjacent to the igniter and the thermocouple respectively, an extremely small fire air passage is arranged in the inner fire cover structure and is communicated with the first gas transmission passage, a plurality of extremely small fire holes, a plurality of maintenance fire holes and a plurality of fire protection holes are arranged on the inner fire cover structure and are communicated with the extremely small fire air passage and are uniformly distributed along the circumference of the inner fire cover structure, the plurality of fire protection holes are communicated with the extremely small fire air passage and are positioned below the extremely small fire holes and at positions opposite to the thermocouple, the plurality of maintenance fire holes are communicated with the extremely small fire air passage and are positioned below the extremely small fire holes and between the igniter and the thermocouple, and the density of the plurality of maintenance fire holes is larger than that of the extremely small fire holes.

In some preferred embodiments, the inner fire cover structure comprises a first cylinder wall, a second cylinder wall and an annular wall, wherein the first cylinder wall is sleeved on the second cylinder wall, the annular wall is connected between the first cylinder wall and the second cylinder wall, the first cylinder wall, the second cylinder wall and the annular wall are surrounded to form a tiny fire air passage, tiny fire holes are arranged on the annular wall, and the fire protection holes and the fire maintenance holes are arranged on the first cylinder wall.

In some preferred embodiments, the inner fire cover structure further comprises a cover plate, the second cylinder wall is arranged on the cover plate, and the cover plate and the annular wall are arranged at intervals to form a tiny fire groove which is communicated with the tiny fire holes.

In some preferred embodiments, the cover plate is provided with an inner ring fire air passage and a plurality of inner ring fire holes, and the plurality of inner ring fire holes are radially arranged in the circumferential direction of the cover plate and are communicated with the inner ring fire air passage, and a second air conveying passage is further arranged in the stove plate structure and is communicated with the inner ring fire air passage.

In some preferred embodiments, the inner fire cover structure further comprises a third cylinder wall, the cover plate is provided with a mounting hole, the third cylinder wall is connected to the cover plate and is communicated with the mounting hole, the second cylinder wall is located between the first cylinder wall and the third cylinder wall, and the second cylinder wall, the cover plate and the third cylinder wall surround to form an inner ring fire air passage.

In some preferred embodiments, the fire hole is maintained as a circular hole, and the aperture of the fire hole is maintained between 1mm and 2mm.

In some preferred embodiments, the plurality of sustain fire holes are distributed in a plurality of rows, and the sustain fire holes of adjacent two rows are staggered.

In some preferred embodiments, the sustaining fire hole is a slotted hole extending along the circumference of the inner fire cover structure, the sustaining fire hole has a length of between 2mm and 8mm and a width of between 0.6mm and 1.5mm.

In some preferred embodiments, two adjacent sustain fire holes are between 0.8mm and 2mm apart.

On the other hand, the gas cooker provided by the utility model comprises a burner with all or part of the technical content.

By implementing the technical scheme of the utility model, the method has the following beneficial effects:

after the burner is adopted, the inner fire cover structure, the igniter and the thermocouple are arranged on the stove plate structure, the igniter and the thermocouple are respectively adjacent to the inner fire cover structure, and fuel gas is sprayed out of the minimum fire holes through the first gas transmission channel in the stove plate structure and the minimum fire air channel in the inner fire cover structure to provide heat of the minimum fire gear. The fire protection hole is opposite to the thermocouple, so that the thermocouple can conveniently sense the current flame temperature and keep the gas supply. The plurality of maintaining fire holes are arranged in a centralized manner in an independent area on the inner fire cover structure, and the density of the maintaining fire holes is larger than that of the minimum fire holes, so that the gas flow and the flame temperature at the maintaining fire holes are ensured, and the gas can be kept burning at the maintaining fire holes when the burner is in the minimum fire gear. When the flame in the extremely small fire hole is extinguished, the flame at the fire hole can be timely transmitted to the extremely small fire hole through surrounding fuel gas, so that the extremely small fire hole is reburned, and the combustion temperature and flame stability of the burner are ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

fig. 1 shows a schematic structural view of a first embodiment of a burner according to the utility model;

FIG. 2 shows an exploded view of the burner of FIG. 1;

FIG. 3 shows a schematic structural view of an inner fire cover structure of the burner of FIG. 1;

FIG. 4 shows a schematic view of the inner fire cover structure of FIG. 3 from another perspective;

FIG. 5 shows a schematic view of the internal structure of the burner of FIG. 1;

fig. 6 shows a schematic structural view of an inner fire cover structure of a second embodiment of a burner according to the present utility model; and

fig. 7 shows a schematic structural view of an embodiment of a burner according to the present utility model.

The above figures contain the following reference numerals:

1. a stove plate structure; 2. an igniter; 3. a thermocouple; 4. an inner fire cover structure; 5. an outer fire cover structure; 6. a temperature sensor; 8. a burner; 9. a gas cooker; 10. a very small fire hole; 11. a first cylinder wall; 12. a second cylinder wall; 13. a third cylinder wall; 14. an annular wall; 15. a cover plate; 16. a mounting hole; 17. maintaining a fire hole; 18. a fire protection hole; 19. an inner ring fire hole; 20. a very small fire trough; 21. an extremely small flame path; 22. an inner ring flame path; 31. a first gas delivery channel; 32. a second gas delivery channel; 33. and a third gas transmission channel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Embodiment one:

as shown in fig. 1 and 2, the burner 8 of the present embodiment mainly includes a burner plate structure 1, an igniter 2, a thermocouple 3, and an inner fire cover structure 4. Wherein, the inner fire cover structure 4 is arranged at the center of the stove plate structure 1, the igniter 2 and the thermocouple 3 are arranged on the stove plate structure 1 and are adjacent to the inner fire cover structure 4 respectively, and the thermocouple 3 is spaced from the igniter 2 by a certain distance. As shown in fig. 3 to 5, a first gas transmission channel 31 is provided in the stove plate structure 1, and a very small gas channel 21 is provided in the inner fire cover structure 4, and the very small gas channel 21 is communicated with the first gas transmission channel 31. The inner fire cover structure 4 is provided with a plurality of tiny fire holes 10 communicated with the tiny fire air passages 21, a plurality of maintenance fire holes 17 and a plurality of fire protection holes 18, the plurality of tiny fire holes 10 are uniformly distributed along the circumference of the inner fire cover structure 4, the plurality of fire protection holes 18 are positioned at positions opposite to the thermocouples 3, the plurality of maintenance fire holes 17 are positioned between the igniters 2 and the thermocouples 3, and the density of the plurality of maintenance fire holes 17 is larger than that of the plurality of tiny fire holes 10.

It should be noted that "very small fire holes" herein are a part of holes distinguished from the inner ring fire holes and the outer ring fire holes on the burner, which can stably provide a lower heating efficiency (for example, 180 watts) during the stewing-like cooking. Where "minimal fire" is a naming of fire holes based on its function, rather than a definition of the fire hole size.

After the burner 8 is adopted, the inner fire cover structure 4, the igniter 2 and the thermocouple 3 are arranged on the stove plate structure 1, the igniter 2 and the thermocouple 3 are respectively adjacent to the inner fire cover structure 4, and fuel gas is sprayed out of the minimum fire holes 10 through the first gas transmission channel 31 in the stove plate structure 1 and the minimum fire air channel 21 in the inner fire cover structure 4 to provide heat of a minimum fire gear. The fire protection hole 18 is opposite to the thermocouple 3, so that the thermocouple 3 can sense the current flame temperature, and the gas supply is kept. The plurality of maintaining fire holes 17 are intensively arranged in an independent area on the inner fire cover structure 4, and the density is larger than that of the minimum fire holes 10, so that the gas flow and the flame temperature at the maintaining fire holes 17 are ensured, and the gas can be kept burning at the maintaining fire holes 17 when the burner 8 is in the minimum fire gear. When the flame in the minimum flame hole 10 is extinguished, the upward flame at the position of the flame hole 17 is maintained to ignite the above minimum flame hole 10, and the flame is timely transmitted to all the minimum flame holes 10 through surrounding fuel gas, so that the minimum flame hole 10 is reburned, and the combustion temperature and flame stability of the burner 8 are ensured.

On the other hand, the flame hole 17 is maintained at a position between the thermocouple 3 and the igniter 2, so that the thermocouple 3 and the igniter 2 are avoided, and when a fire is used, the flame at the flame hole 17 is maintained and cannot directly heat the thermocouple 3 or the igniter 2, so that the oxidation speed of the thermocouple 3 or the igniter 2 can be effectively reduced, and the oxidation of the thermocouple 3 or the igniter 2 is prevented from influencing the use of the burner 8.

As shown in fig. 3 to 5, the inner fire cover structure 4 of the present embodiment includes a first cylinder wall 11, a second cylinder wall 12, and an annular wall 14, wherein the first cylinder wall 11 is sleeved on the second cylinder wall 12, the first cylinder wall 11 and the second cylinder wall 12 are coaxially arranged, and the annular wall 14 is radially connected between the first cylinder wall 11 and the second cylinder wall 12, so that the first cylinder wall 11, the second cylinder wall 12, and the annular wall 14 are surrounded to form a minimum fire air passage 21. The very small fire hole 10 is provided on the annular wall 14, and the fire protection hole 18 and the maintenance fire hole 17 are provided on the first cylinder wall 11. The gas can sequentially pass through the first gas transmission passage 31 and the minute fire air path 21 in the direction indicated by the dotted arrow, and then be ejected from the minute fire hole 10.

As shown in fig. 3, the burner 8 of the present embodiment is provided with 5 maintenance fire holes 17, the maintenance fire holes 17 are circular holes, and the aperture of the maintenance fire holes 17 is 1.5mm.

The 5 maintaining fire holes 17 are distributed into an upper row and a lower row, wherein the upper row is provided with 3 maintaining fire holes 17, the lower row is provided with 2 maintaining fire holes 17, and the maintaining fire holes 17 of the upper row and the lower row are arranged in a staggered way to provide enough fuel gas for the local area so as to maintain the flame in the area to continuously burn, so that the temperature is kept at a certain height.

Of the 5 sustaining flame holes 17 of the present embodiment, the distance between two adjacent sustaining flame holes 17 is 1.2mm.

In other embodiments not shown in the drawings, the number of the sustaining flame holes 17 may be increased or decreased as required, the range of the aperture of the sustaining flame holes 17 is preferably between 1mm and 2mm, and the distance between two adjacent sustaining flame holes 17 is preferably between 0.8mm and 2mm.

As shown in fig. 3 to 5, the inner fire cover structure 4 of the present embodiment further includes a cover plate 15, the second cylinder wall 12 is disposed on the cover plate 15, an inner ring fire air passage 22 and a plurality of inner ring fire holes 19 are disposed on the cover plate 15, and the plurality of inner ring fire holes 19 are radially disposed in a circumferential direction of the cover plate 15 and are communicated with the inner ring fire air passage 22. As shown in fig. 1, 2 and 5, a second gas transmission channel 32 is further provided in the stove plate structure 1, and the second gas transmission channel 32 is communicated with the inner ring fire air channel 22. The gas can sequentially pass through the second gas delivery passage 32 and the inner annular flame path 22 in the direction indicated by the solid arrow, and then be ejected from the inner annular flame holes 19.

As shown in fig. 3 and 5, the cover plate 15 is disposed at a distance from the annular wall 14 and forms a very small fire groove 20. The extremely small fire groove 20 extends one circle along the circumferential direction of the first cylinder wall 11, and communicates with the plurality of extremely small fire holes 10. The fuel gas sprayed from the very small flame holes 10 can be uniformly distributed in the very small flame grooves 20, so that flame stability is maintained.

As shown in fig. 3 to 5, the inner fire cover structure 4 further includes a third cylinder wall 13, and a mounting hole 16 is provided at a central position of the cover plate 15, and the third cylinder wall 13 is connected to the cover plate 15 and communicates with the mounting hole 16. Referring to fig. 7, a temperature sensor 6 may be provided in the third cylinder wall 13 and the mounting hole 16 to enrich the function of the burner 8.

As shown in fig. 5, the second cylinder wall 12 is located between the first cylinder wall 11 and the third cylinder wall 13, and the second cylinder wall 12, the cover plate 15 and the third cylinder wall 13 enclose an inner ring flame path 22.

As shown in fig. 1, 2 and 5, the burner 8 of the present embodiment further includes a third gas-feeding passage 33 and an outer fire cover structure 5, the outer fire cover structure 5 being provided on the stove top structure 1 and surrounding the periphery of the inner fire cover structure 4. The two are coaxially arranged, and the igniter 2 and the thermocouple 3 are positioned between the two. The third gas transmission channel 33 is arranged in the stove plate structure 1, the outer fire cover structure 5 is provided with an outer ring fire air channel and an outer ring fire hole, and fuel gas can pass through the third gas transmission channel 33 and the outer ring fire air channel and then be sprayed out from the outer ring fire hole.

The minimum fire, the inner ring fire and the outer ring fire are used for conveying gas through three independent channels, so that independent control and flame stabilization maintenance are facilitated.

Example two

Compared with the first embodiment, the burner 8 of the second embodiment only adjusts the shape of the maintaining fire hole 17 of the inner fire cover structure 4, and referring to fig. 1 and 2, the burner 8 of the second embodiment mainly comprises a stove plate structure 1, an igniter 2, a thermocouple 3, the inner fire cover structure 4 and an outer fire cover structure 5, wherein the outer fire cover structure 5 is in a ring shape as a whole and covers the stove plate structure 1; the inner fire cover structure 4 is arranged in the outer fire cover structure 5 and is covered at the center of the stove plate structure 1; the igniter 2 and the thermocouple 3 are arranged between the inner fire cover structure 4 and the outer fire cover structure 5 and are respectively positioned at different azimuth angles. The first gas transmission channel 31, the second gas transmission channel 32 and the third gas transmission channel 33 are also arranged in the furnace tray structure 1 and are respectively communicated with different gas inlet nozzles.

The inner fire cover structure 4 comprises a first cylinder wall 11, a second cylinder wall 12 and a third cylinder wall 13 which are coaxially arranged, wherein the second cylinder wall 12 is positioned between the first cylinder wall 11 and the third cylinder wall 13. The second cylinder wall 12 and the third cylinder wall 13 are connected to the cover plate 15, an inner ring fire hole 19 is arranged on the cover plate 15, the second cylinder wall 12 and the third cylinder wall 13 surround to form an inner ring fire air passage 22, and the inner ring fire air passage 22 is connected with the second air transmission passage 32; the annular wall 14 is connected between the first cylinder wall 11 and the second cylinder wall 12 and is disposed at a distance from the annular wall 14 to form a very small fire groove 20. The annular wall 14 is provided with a very small fire hole 10, the annular wall 14 forms a very small fire air passage 21, and the very small fire air passage 21 is connected with the first air conveying passage 31. An outer ring fire air passage is arranged in the outer fire cover structure 5 and is connected with the third air conveying passage 33. The above-described structure enables the burner 8 of the present embodiment to form three annular flames arranged in concentric circles.

As shown in fig. 6, a fire maintaining hole 17 and a fire maintaining hole 18 are provided on the first cylinder wall 11 of the present embodiment, wherein the fire maintaining hole 18 corresponds to the thermocouple 3, and the fire maintaining hole 17 is located between the thermocouple 3 and the igniter 2. The maintaining fire holes 17 are slotted holes extending along the circumferential direction of the inner fire cover structure 4, the first cylinder wall 11 is provided with three maintaining fire holes 17 along the axial direction, the length of the maintaining fire holes 17 is 4mm, and the width is 0.8mm.

In other embodiments not shown in the figures, the length of the sustaining flame holes 17 is preferably between 2mm and 8mm and the width between 0.6mm and 1.5mm.

The utility model also provides a gas cooker 9, as shown in fig. 7, the gas cooker 9 of the embodiment comprises a burner 8, and the burner 8 is the burner 8 containing all or part of the technical content.

When the gas cooker 9 of the embodiment is applied and the flame is extinguished in the tiny fire hole 10 on the burner 8, the flame at the position of the tiny fire hole 17 on the burner 8 can timely reburning the gas at the tiny fire hole 10, so that the combustion temperature of the burner 8 is maintained, and the service life and the use experience of the gas cooker 9 are improved.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. A burner, comprising:

the furnace plate structure is provided with a first gas transmission channel;

the igniter is arranged on the stove plate structure;

the thermocouple is arranged on the stove plate structure and is arranged at intervals with the igniter;

the inner fire cover structure is arranged on the stove plate structure and is respectively adjacent to the igniter and the thermocouple, a very small fire air passage is arranged in the inner fire cover structure and is communicated with the first gas transmission passage, a plurality of very small fire holes, a plurality of maintenance fire holes and a plurality of fire protection holes are arranged on the inner fire cover structure and are communicated with the very small fire air passage and are uniformly distributed along the circumferential direction of the inner fire cover structure, the fire protection holes are communicated with the very small fire air passage and are positioned below the very small fire holes and at positions opposite to the thermocouple, and the maintenance fire holes are communicated with the very small fire air passage and are positioned below the very small fire holes and between the igniter and the thermocouple, and the density of the maintenance fire holes is greater than that of the very small fire holes.

2. The burner of claim 1, wherein the inner fire cover structure comprises a first barrel wall, a second barrel wall, and an annular wall, the first barrel wall is sleeved on the second barrel wall, the annular wall is connected between the first barrel wall and the second barrel wall, the first barrel wall, the second barrel wall, and the annular wall enclose the minimum fire air passage, the minimum fire hole is disposed on the annular wall, and the fire protection hole and the fire maintenance hole are disposed on the first barrel wall.

3. The burner of claim 2 wherein said inner fire cover structure further comprises a cover plate, said second cylinder wall being disposed on said cover plate, said cover plate being spaced from said annular wall to form a very small fire slot, said very small fire slot communicating with a plurality of said very small fire holes.

4. The burner of claim 3, wherein the cover plate is provided with an inner ring fire air passage and a plurality of inner ring fire holes, the plurality of inner ring fire holes are radially arranged in the circumferential direction of the cover plate and are communicated with the inner ring fire air passage, and a second air conveying passage is further arranged in the furnace plate structure and is communicated with the inner ring fire air passage.

5. The burner of claim 4, wherein the inner fire cover structure further comprises a third cylinder wall, wherein the cover plate is provided with a mounting hole, the third cylinder wall is connected to the cover plate and is in communication with the mounting hole, the second cylinder wall is located between the first cylinder wall and the third cylinder wall, and the second cylinder wall, the cover plate and the third cylinder wall surround to form the inner ring fire air passage.

6. The burner of claim 1, wherein the sustaining flame holes are circular holes, and the diameter of the sustaining flame holes is between 1mm and 2mm.

7. The burner of claim 6 wherein a plurality of said sustain fire holes are distributed in a plurality of rows, said sustain fire holes of adjacent rows being staggered.

8. The burner of claim 1 wherein the maintenance fire holes are slots extending circumferentially of the inner fire cover structure, the maintenance fire holes having a length of between 2mm and 8mm and a width of between 0.6mm and 1.5mm.

9. The burner of claim 1 wherein the distance between two adjacent sustain fire holes is between 0.8mm and 2mm.

10. A gas hob, characterized in, that it comprises a burner according to any one of the claims 1 to 9.