CN220506778U

CN220506778U - Hearth for improving heat efficiency and gas stove

Info

Publication number: CN220506778U
Application number: CN202322107238.1U
Authority: CN
Inventors: 鞠木春
Original assignee: Boli Stove Technology Co ltd
Current assignee: Boli Stove Technology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-20
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a hearth and a gas stove for improving heat efficiency, the hearth comprises a hearth body and a hearth ring arranged at the upper end part of the hearth body, the hearth ring comprises an outer hearth ring and an inner hearth ring arranged on the outer hearth ring, the inner hearth ring is provided with an inner hearth ring protruding out of the outer hearth ring in the radial direction, a plurality of smoke exhaust holes penetrating up and down are distributed on the inner hearth ring at intervals along the circumferential direction, the number of the smoke exhaust holes is more than or equal to 8, and the smoke exhaust holes are used for transmitting heat of smoke to a boiler bottom while exhausting the smoke in the hearth. By adopting the technical scheme, when the gas cooker is used for cooking, the hearth and the frying pan arranged on the hearth are heated by flame, the smoke exhaust holes are used for exhausting smoke at the same time, the frying pan is closely attached to the smoke exhaust holes, the heating area of the frying pan can be increased, the heating of the frying pan is more uniform, the heat efficiency of the cooker is improved, and the cooker is not easy to deform.

Description

Hearth for improving heat efficiency and gas stove

[ field of technology ]

The utility model belongs to the technical field of stoves, and particularly relates to a gas stove.

[ background Art ]

Commercial cooktops are commonly used in large catering and cooking sites such as hotels and canteens. In the cooking process, a large amount of smoke is generated in the hearth, and a smoke exhaust pipe is usually arranged for exhausting the smoke. For example, the Chinese patent with the publication number of CN 219036703U discloses a multi-exhaust-pipe hearth and a stove, wherein the multi-exhaust-pipe hearth comprises a hearth body, a burner arranged at the bottom of the hearth body, and two or more exhaust ports arranged at the side part or the bottom of the hearth body, and when the number of the exhaust ports is 2, the exhaust ports are communicated with one another to form a smoke exhaust pipe; when the number of the exhaust ports is more than 2, the exhaust ports are communicated with a first loop, and a smoke exhaust pipe is arranged on the first loop. Wherein, the smoke exhaust pipe is directly communicated with the furnace top smoke cap, the smoke is exhausted, and the heat is not effectively utilized in the furnace.

[ utility model ]

Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide a hearth for improving the heat efficiency, solve the problem of utilizing the heat of the flue gas and improve the heat efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a furnace of thermal efficiency is improved, includes furnace body and locates the furnace ring of furnace body upper end port portion, the furnace ring includes outer furnace ring and locates the interior furnace ring of outer furnace ring inner circle, interior furnace ring is equipped with the interior furnace ring inner circle of protruding in outer furnace ring inner circle in radial direction, interior furnace ring inner circle has the smoke vent that link up from top to bottom of a river of a plurality of along circumference interval distribution, and the quantity of a plurality of smoke vent is not less than 8, and the heat transfer of flue gas to the bottom of the boiler when a plurality of smoke vent is used for discharging flue gas in the furnace.

Preferably, the plurality of smoke exhaust holes are distributed in a major arc shape at the middle rear part of the inner ring of the inner furnace ring; and/or the number of the plurality of smoke exhaust holes is more than or equal to 20, and the smoke exhaust holes are uniformly distributed at intervals.

Preferably, the inner side of the upper part of the inner ring of the inner furnace ring is provided with a conical surface, and the upper part of the inner furnace ring is provided with an annular table top at the radial outer side of the conical surface.

Preferably, the upper half part of the smoke exhaust hole is provided with a slot communicated with the conical surface.

Preferably, the slots are rectangular in configuration and extend radially from the conical surface to the annular land.

Preferably, the lower half part of the smoke exhaust hole is a circular hole.

Preferably, the inner ring of the upper port of the outer furnace ring is provided with a positioning step ring surface, and the outer ring of the bottom end of the inner furnace ring is positioned on the positioning step ring surface.

Preferably, the annular surface of the positioning step is provided with an annular groove, and a ceramic fiber rope is arranged in the annular groove.

Preferably, the hearth body comprises an outer hearth, ceramic fiber cotton arranged at the inner ring of the outer hearth and an inner hearth arranged at the inner ring of the ceramic fiber cotton.

The utility model also provides a gas stove provided with the hearth.

The utility model adopts the technical scheme and has the following beneficial effects:

1. when cooking, the gas stove flames heat the hearth and the frying pan (or other types of pans) placed on the hearth, the smoke exhaust holes are formed in the plurality of smoke exhaust holes, the frying pan clings to the smoke exhaust holes, the heating area of the frying pan can be increased, the heating of the frying pan is more uniform, the heat efficiency of the stove is improved, and the pan is not easy to deform.

The number of the smoke exhaust holes is more than or equal to 8, and the smoke in the hearth cannot be fully discharged because the number of the smoke exhaust holes is too small, and the heat of the smoke cannot be fully utilized.

2. The smoke exhaust holes are distributed in a major arc shape at the middle and rear parts of the inner ring of the inner furnace ring, so that the smoke exhaust holes are densely distributed at the middle and rear parts, and the smoke exhaust holes are not formed at the front part, so that the smoke is guided to be exhausted at the middle and rear sides, and the smoke is prevented from being directly exhausted at the front side and is directly blown to the direction of an operator.

3. The upper inner side of the inner ring is provided with a conical surface for being attached to the shape of the bottom of the pan, and the upper half part of the smoke discharging hole is provided with a slot communicated with the conical surface, so that a gap is formed between the inner ring and the bottom of the pan, smoke is discharged conveniently, the smoke is attached to the bottom of the pan and spread conveniently, the heated area of the pan is increased, and the pan is heated more uniformly.

4. The slotting is of a rectangular structure, the slotting extends to the annular table top from the conical surface in the radial direction, the lower half part of the smoke exhaust hole is a circular hole, so that smoke exhausted from the lower half part of the smoke exhaust hole is diffused at the slotting position, and the pan bottom is heated at the position where flame is difficult to reach.

5. The inner ring of the upper port of the outer furnace ring is provided with a positioning step ring surface, the outer ring of the bottom end of the inner furnace ring is positioned on the positioning step ring surface, the inner furnace ring and the outer furnace ring are convenient to assemble, and then the inner furnace ring and the outer furnace ring can be fixed by adopting fixing screws.

The annular surface of the positioning step is provided with an annular groove, and a ceramic fiber rope is arranged in the annular groove, so that the positioning step has the double functions of sealing and heat insulation.

6. The hearth body comprises an outer hearth, ceramic fiber cotton arranged at the inner ring of the outer hearth and an inner hearth arranged at the inner ring of the ceramic fiber cotton, so that a sandwich structure is formed, a good heat insulation effect is achieved, excessive heat loss in the hearth is avoided, and the heat efficiency is influenced.

The ceramic fiber cotton is a high-efficiency heat-insulating material and has the characteristics of light weight, high strength, oxidation resistance, low heat conductivity, good flexibility, corrosion resistance, small heat capacity, sound insulation and the like.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The utility model is further described with reference to the accompanying drawings:

FIG. 1 is a perspective view of a furnace according to the present utility model;

FIG. 2 is a top view of the furnace of the present utility model;

FIG. 3 is a front view of the firebox of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4A;

FIG. 6 is an enlarged schematic view of the structure shown at B in FIG. 4;

reference numerals: the furnace comprises an inner furnace ring 1, a smoke exhaust hole 11, a slot 111, a circular hole 112, an inner furnace ring 12, an outer furnace ring 2, a positioning step ring surface 21, a supporting convex part 22, ceramic fiber ropes 3, ceramic fiber cotton 4, an inner furnace 5, an outer furnace 6 and fixing screws 7.

[ detailed description ] of the utility model

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

Those skilled in the art will appreciate that the features of the examples and embodiments described below can be combined with one another without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The words "upper", "lower", "inner", "outer", and the like, which refer to an orientation or positional relationship, are merely based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

Referring to fig. 1 to 6, the present embodiment provides a furnace for improving thermal efficiency, including a furnace body and a furnace ring provided at an upper port portion of the furnace body. The furnace ring comprises an outer furnace ring 2 and an inner furnace ring 1 arranged on the outer furnace ring inner ring, wherein the inner furnace ring 1 is provided with an inner furnace ring 12 protruding out of the outer furnace ring inner ring in the radial direction, and a plurality of smoke exhaust holes 11 which are vertically communicated are distributed on the inner furnace ring 12 at intervals along the circumferential direction.

Wherein the number of the plurality of smoke discharging holes 11 is more than or equal to 8, for example, 10, 15 or more. The smoke exhaust holes 11 are used for exhausting smoke in the hearth and simultaneously transmitting heat of the smoke to the bottom of the boiler. If the number of the smoke exhaust holes is too small, the smoke in the hearth cannot be fully exhausted, and the heat of the smoke cannot be fully utilized.

When cooking, the gas stove flames heat the hearth and the frying pan (or other type of pan) placed on the hearth, the smoke exhaust holes are formed in the plurality of smoke exhaust holes, the frying pan (or other type of pan) is tightly attached to the smoke exhaust holes, the heating area of the frying pan can be increased, the heating of the frying pan is more uniform, the heat efficiency of the stove is improved, and the frying pan is not easy to deform.

In this embodiment, the plurality of smoke exhaust holes 11 are preferably distributed in a major arc shape at the middle and rear part of the inner ring 12. And the number of the smoke exhaust holes is more than or equal to 20, and the smoke exhaust holes are uniformly distributed at intervals, for example, 25 smoke exhaust holes are formed. Thus, smoke exhaust holes are densely distributed at the middle and rear parts, the smoke exhaust holes are not arranged at the front part, the smoke is guided to be exhausted at the middle and rear sides, the smoke is prevented from being directly exhausted at the front side, and an operator is directly blown.

It will be appreciated that the number of smoke holes may vary, for example 28, 30, and that more smoke holes may be provided if the furnace size becomes larger.

Referring to the structure of the inner furnace ring in the prior art, the inner side of the upper part of the inner furnace ring 12 is provided with a conical surface, and the upper part of the inner furnace ring is provided with an annular table surface at the radial outer side of the conical surface. Correspondingly, a groove 111 which is communicated with the conical surface is formed in the upper half part of the smoke exhaust hole. The design conical surface is for laminating with the bottom of a boiler shape, owing to the last half of exhaust port be equipped with the fluting that the conical surface link up, form the clearance between one side and the bottom of a boiler, be convenient for the fume exhaust, on the other hand be convenient for flue gas laminating bottom of a boiler diffusion, increase the heated area of frying pan, make the frying pan be heated more evenly.

Further, the slot 111 has a rectangular structure and extends from the conical surface to the annular mesa in the radial direction. The lower half of the smoke vent 11 is a circular hole 112. In this way, the smoke discharged from the lower half part of the smoke discharging hole diffuses at the slotting position and heats the pan bottom at the position where the flame is difficult to reach.

Further, a positioning step ring surface 21 is arranged on the inner ring of the upper port of the outer furnace ring, and the outer ring of the bottom end of the inner furnace ring is positioned on the positioning step ring surface. The inner furnace ring and the outer furnace ring are convenient to assemble, and then the inner furnace ring and the outer furnace ring can be fixed by adopting the fixing screw 7.

Further, an annular groove is formed in the annular surface 21 of the positioning step, and a ceramic fiber rope 3 is arranged in the annular groove. The ceramic fiber rope has the double functions of sealing and heat insulation. The hearth body comprises an outer hearth 6, ceramic fiber cotton 4 arranged on the inner ring of the outer hearth and an inner hearth 5 arranged on the inner ring of the ceramic fiber cotton. The hearth body forms a sandwich structure, and the sandwich layer is ceramic fiber cotton with high-efficiency heat insulation effect, has good heat insulation effect, and avoids excessive heat loss in the hearth to influence the heat efficiency. The ceramic fiber cotton is a high-efficiency heat-insulating material and has the characteristics of light weight, high strength, oxidation resistance, low heat conductivity, good flexibility, corrosion resistance, small heat capacity, sound insulation and the like.

In addition, referring to the prior art, support protrusions 22 are circumferentially spaced at an upper portion of the outer rim for supporting the bottom of the pan. The upper part of the furnace can be designed to have a structure with a low front part and a high rear part, namely, the structure gradually rises from the center of the front part of the furnace to the center of the rear part of the furnace.

Example two

The utility model also provides a gas stove provided with the hearth according to the first embodiment, and other structures of the gas stove can refer to the prior art and are not repeated here.

While the utility model has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but includes, but is not limited to, the drawings and the description of the specific embodiments. Any modifications which do not depart from the functional and structural principles of the utility model are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a furnace of thermal efficiency is improved, includes furnace body and locates the furnace ring of furnace body upper end port portion, the furnace ring includes outer furnace ring and locates the interior furnace ring of outer furnace ring inner circle, its characterized in that, interior furnace ring is equipped with the interior furnace ring inner circle of protruding in outer furnace ring inner circle in radial direction, interior furnace ring inner circle has a plurality of to link up from top to bottom to the exhaust port along circumference interval distribution, and the quantity of a plurality of exhaust port is greater than or equal to 8, and the heat transfer of flue gas to the bottom of a boiler when a plurality of exhaust port is used for discharging flue gas in the furnace.

2. The hearth for improving thermal efficiency according to claim 1, wherein the plurality of smoke exhaust holes are distributed in a major arc shape at the middle rear part of the inner ring; and/or the number of the plurality of smoke exhaust holes is more than or equal to 20, and the smoke exhaust holes are uniformly distributed at intervals.

3. The furnace with improved heat efficiency according to claim 1, wherein the inner side of the upper part of the inner ring is provided with a conical surface, and the upper part of the inner ring is provided with an annular table surface on the radial outer side of the conical surface.

4. A furnace for enhancing thermal efficiency as claimed in claim 3 wherein the upper half of said smoke vent is provided with a slot extending through the conical surface.

5. The furnace of claim 4, wherein the slots are rectangular in configuration and extend radially from the conical surface to the annular table top.

6. The furnace of claim 5, wherein the lower half of the smoke vent is a circular hole.

7. The furnace with improved thermal efficiency according to claim 1, wherein the inner ring of the upper port of the outer ring is provided with a positioning step ring surface, and the outer ring of the bottom end of the inner ring is positioned on the positioning step ring surface.

8. The furnace with improved heat efficiency according to claim 7, wherein the annular surface of the positioning step is provided with an annular groove, and ceramic fiber ropes are arranged in the annular groove.

9. The furnace with improved thermal efficiency according to claim 1, wherein the furnace body comprises an outer furnace, ceramic fiber cotton arranged on an inner ring of the outer furnace, and an inner furnace arranged on an inner ring of the ceramic fiber cotton.

10. A gas stove characterized in that a hearth according to any one of claims 1 to 9 is provided.