CN110566967B - Fire cover and stove comprising same - Google Patents

Fire cover and stove comprising same Download PDF

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Publication number
CN110566967B
CN110566967B CN201910959262.3A CN201910959262A CN110566967B CN 110566967 B CN110566967 B CN 110566967B CN 201910959262 A CN201910959262 A CN 201910959262A CN 110566967 B CN110566967 B CN 110566967B
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CN
China
Prior art keywords
fire
flame
hole
annular groove
fire hole
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CN201910959262.3A
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Chinese (zh)
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CN110566967A (en
Inventor
王楠楠
徐强
郑军妹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Publication date
Application filed by Ningbo Fotile Kitchen Ware Co Ltd filed Critical Ningbo Fotile Kitchen Ware Co Ltd
Priority to CN201910959262.3A priority Critical patent/CN110566967B/en
Publication of CN110566967A publication Critical patent/CN110566967A/en
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Publication of CN110566967B publication Critical patent/CN110566967B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/84—Flame spreading or otherwise shaping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges

Abstract

The invention discloses a fire cover and a cooker comprising the same, wherein the fire cover comprises a fire cover body; the main fire hole, main fire hole encircle the setting along the peripheral wall of fire lid body, and main fire hole includes inside fire hole passageway and outside fire hole passageway, and inside fire hole passageway communicates and forms the shape of Z shape with outside fire hole passageway each other, and annular groove, annular groove form and sink in the peripheral wall of fire lid body, and the lower extreme of outside fire hole passageway opens and communicates with annular groove's upper end. The main fire hole is not easy to block, and the fire hole is convenient to clean. Resulting in a local diffusion action after the gas has flowed out, so that the flame is discharged in the form of a local annular flame generated between the outer fire hole channel and the root of the annular groove, and a top conical flame formed by the annular groove and the outlet of the outer fire hole channel. The zigzag configuration of the main fire holes lengthens the flashback path and reduces the possibility of reverse combustion of the flame by a tortuous path. The probability of backfire is reduced.

Description

Fire cover and stove comprising same
Technical Field
The invention relates to a fire cover and a cooker comprising the same.
Background
The fire cover of the existing stove generally has a through main fire hole, a flame stabilizing hole and other structures. In use, the mixed gas is ejected from the main fire hole and ignited, thereby forming a flame. However, the through structure of the main fire hole makes the main fire hole easily blocked by external dirt in use. The outside of main fire hole still just easily clears up when clearing up, but the inside is difficult to clean up. Meanwhile, the existing main fire holes are easy to produce tempering flame, and then reverse combustion is caused.
Disclosure of Invention
The invention aims to overcome the defects that a main fire hole of a fire cover in the prior art is easy to block, difficult to clean and easy to generate backfire, and provides the fire cover and a cooker comprising the same.
The invention solves the technical problems through the following technical scheme:
a fire lid characterized in that said fire lid comprises:
a fire cover body;
the main fire hole is arranged along the peripheral wall surface of the fire cover body in a surrounding mode and comprises an inner fire hole channel and an outer fire hole channel, the inner fire hole channel and the outer fire hole channel are communicated with each other and form a Z-shaped shape, the inner fire hole channel is communicated with the inner side of the fire cover body, and the outer fire hole channel is communicated with the outer side of the fire cover body;
and the annular groove is formed and sunken on the peripheral wall surface of the fire cover body, is arranged below the main fire hole, and is communicated with the upper end of the annular groove, wherein the lower end of the external fire hole channel is opened.
The main fire hole of this scheme has two sections constitutions, has a zigzag turning between, so main fire hole is close to one section (inside fire hole passageway) of the inside of fire lid body and is difficult for blockking up, is convenient for clean fire hole.
Meanwhile, the fire outlet formed by the annular groove and the main fire hole is in a semi-closed annular structure (between the root of the external fire hole channel and the annular groove) and a semi-open strip-shaped structure (between the root of the external fire hole channel and the annular groove), so that a local diffusion action exists after the fuel gas flows out, and the fire outlet is in a form of generating local annular flame between the root of the external fire hole channel and the root of the annular groove and forming top conical flame together with the outlet of the annular groove and the external fire hole channel. Wherein the ring flame maintains stable combustion of the cone flame.
In addition, the zigzag configuration of the main fire holes lengthens the flashback path and reduces the possibility of reverse combustion of the flame by a tortuous path. The probability of backfire is reduced.
Preferably, an upper surface of the outer fire hole passage protrudes outward with respect to an upper surface of the annular groove. Therefore, a stepped outlet (the upper edge of the outlet protrudes below the outlet) is arranged at the outer section outlet of the fire cover, so that the main fire hole is further shielded, and the anti-blocking effect is facilitated.
Preferably, a flame stabilizing hole is formed in the fire cover body, the flame stabilizing hole is communicated with the inner side and the outer side of the fire cover body, and the flame stabilizing hole is annularly arranged below the annular groove. The flame stabilizing hole is positioned below the fire outlet of the main fire hole, so that the strength of the main flame (the conical flame) during normal combustion can be enhanced, and the combustion stability of the main flame can be ensured.
Preferably, a sunken fire transfer groove is formed in the peripheral wall surface of the fire cover body, the fire transfer groove is annularly arranged below the annular groove, and the outer end of each flame stabilizing hole is communicated with the fire transfer groove.
Preferably, the annular groove is communicated with the fire transfer groove through a plurality of annularly arranged communication grooves.
Preferably, the communication groove and the flame stabilizing hole correspond in position, wherein an upper end of the communication groove is disposed toward a lower side of the external flame hole passage, and a lower end of the communication groove is disposed toward the flame stabilizing hole. The communicating groove plays a role in communicating the flame stabilizing holes, and gas flowing out of the flame stabilizing holes can reach the main flame holes and the annular groove.
Preferably, the communication groove includes an upper end portion extending in the vertical direction and a lower end portion provided inwardly and obliquely downward.
Preferably, the upper end portion is open to the outside. The open upper end part allows the gas flowing out of the flame stabilizing holes to flow upwards and also facilitates the mixing of the external gas.
Preferably, the flame stabilizing hole includes an inner flame stabilizing passage communicated with the inner side of the fire cover body and an outer flame stabilizing passage communicated with the fire transfer groove, wherein the outer flame stabilizing passage extends in the horizontal direction, and the inner flame stabilizing passage extends upwards from inside to outside in an inclined manner.
Preferably, the inner fire hole channel and the outer fire hole channel extend upwards in an inward-outward inclined manner. Thus, the flame sprayed from the main fire hole can ensure the tendency of inclining upwards.
Preferably, the fire cover body is formed by folding and connecting an upper cover and a base, wherein the base is of an annular structure, the upper end of the upper cover is positioned above the base, and the lower end of the upper cover is inserted into the base. The fire lid body structure of combination formula can be dismantled, is convenient for clean.
Preferably, the inner fire hole passage and the outer fire hole passage are disposed at an upper end of the upper cover, an upper surface of the annular groove is formed at a lower surface of the upper end of the upper cover, and a lower surface of the annular groove is formed at an upper surface of the base. Since the outer fire hole passage is downwardly opened, the lower side of the outer fire hole passage is exposed after the upper cover is disassembled, thereby facilitating the cleaning of the accumulated dirt. And the inner fire hole channel is not easy to block due to the Z-shaped structure, and the problem of cleanness does not exist.
Preferably, the flame stabilizing hole includes an inner flame stabilizing passage communicated with the inner side of the fire cover body and an outer flame stabilizing passage communicated with the flame transfer groove, wherein the inner flame stabilizing passage is formed at the lower end of the upper cover, and the outer flame stabilizing passage and the flame transfer groove are formed at the base. Through the inside steady flame passageway and the outside steady flame passageway with different incline directions processing respectively on upper cover and base, it is more convenient to compare in the steady flame hole of direct processing tortuous.
Preferably, the peripheral wall surface of the upper cover projects outwardly from the peripheral wall surface of the base, so that the upper surface of the outer fire hole passage projects outwardly relative to the upper surface of the annular groove.
Preferably, the inclination direction of the annular groove coincides with the inclination direction of the outer fire hole passage. Therefore, the extension direction consistency of the annular groove and the external fire hole channel can be ensured, and the flame can be gathered to generate stably-oriented conical flame.
A kitchen range is characterized by comprising the fire cover.
The positive progress effects of the invention are as follows: the main fire hole is not easy to block, and the fire hole is convenient to clean. Resulting in a local diffusion action after the gas has flowed out, so that the flame is discharged in the form of a local annular flame generated between the outer fire hole channel and the root of the annular groove, and a top conical flame formed by the annular groove and the outlet of the outer fire hole channel. The zigzag configuration of the main fire holes lengthens the flashback path and reduces the possibility of reverse combustion of the flame by a tortuous path. The probability of backfire is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of a fire cover according to a preferred embodiment of the invention.
FIG. 2 is a schematic view of a fire lid in a partial cross-sectional view according to a preferred embodiment of the invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram of the upper cover according to the preferred embodiment of the invention.
Fig. 5 is a schematic perspective view of a base according to a preferred embodiment of the invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1-5, the present embodiment discloses a fire cover, which mainly comprises a fire cover body 1 and a main fire hole 2 disposed on the fire cover body 1. The overall shape of the fire cover body is cylindrical, and the fire cover can be changed according to different requirements in implementation and is suitable for various cookers.
As shown in fig. 1, 2 and 3, the fire cover of the present embodiment includes a main fire hole 2, the main fire hole 2 is disposed along the peripheral wall surface of the fire cover body 1, specifically, the peripheral wall surface of the upper cover 11 is disposed around, and the main fire hole 2 includes an inner fire hole passage 21 and an outer fire hole passage 22, the inner fire hole passage 21 and the outer fire hole passage 22 are communicated with each other and form a Z-shaped shape, the inner fire hole passage 21 is communicated with the inner side of the fire cover body 1, and the outer fire hole passage 22 is communicated with the outer side of the fire cover body 1.
As shown in fig. 1, 2 and 3, the fire lid of the present embodiment includes an annular groove 3, and the annular groove 3 is formed and depressed on the peripheral wall surface of the fire lid body 1, specifically, the peripheral wall surface of the upper lid 11. And the annular groove 3 is provided below the main fire hole 2, wherein the lower end of the external fire hole passage 22 is opened and communicated with the upper end of the annular groove 3.
As shown in fig. 3, the fire cover of the present embodiment includes two sections of the main fire hole 2 of the present embodiment, and a zigzag corner exists between the two sections, so that the inner section (inner fire hole channel 21) of the main fire hole 2 close to the fire cover body 1 is not easy to be blocked, and the fire hole is convenient to be cleaned.
Meanwhile, the fire outlet formed by the annular groove 3 and the main fire hole 2 is in a semi-closed annular structure (between the external fire hole channel 22 and the root of the annular groove 3) and a semi-open strip-shaped structure (between the external fire hole channel 22 and the outlet of the annular groove 3), so that a local diffusion action exists after the fuel gas flows out, and the fire outlet is in a form of local annular flame generated between the external fire hole channel 22 and the root of the annular groove 3 and top conical flame formed by the annular groove 3 and the outlet of the external fire hole channel 22. Wherein the ring flame maintains stable combustion of the cone flame.
In addition, the zigzag design of the main fire holes 2 lengthens the flashback path and reduces the possibility of reverse combustion of the flame by means of a meandering path. The probability of backfire is reduced.
As shown in fig. 3, the upper surface of the outer fire hole path 22 of the present embodiment is provided to protrude outward with respect to the upper surface of the annular groove 3. Therefore, a stepped outlet (the upper edge of the outlet protrudes below the outlet) is arranged at the outlet of the outer section of the fire cover, so that the main fire hole 2 is further shielded, and the anti-blocking effect is facilitated. Wherein the stepped outlet may be achieved in a variety of ways. For example, the upper surface of the annular groove 3 may be extended by adding additional structures, etc.
Specifically, as shown in fig. 3, the peripheral wall surface 111 of the upper cover 11 of the present embodiment is provided to protrude outward from the peripheral wall surface 121 of the base 12, so that the upper surface of the outer fire hole passage 22 protrudes outward relative to the upper surface of the annular groove 3.
As shown in fig. 1, 2 and 3, a flame stabilizing hole 4 is formed on the fire cover body 1 of the embodiment, the flame stabilizing hole 4 is communicated with the inner side and the outer side of the fire cover body 1, and the flame stabilizing hole 4 is annularly arranged below the annular groove 3. The flame stabilizing hole 4 is positioned below the fire outlet of the main fire hole 2, so that the main flame strength (conical flame) during normal combustion can be enhanced, and the combustion stability of the main flame can be ensured.
As shown in fig. 2 and 3, the peripheral wall surface of the fire lid body 1 of the present embodiment, specifically, the peripheral wall surface 121 of the base 12 is formed with a sunken fire transmission groove 5, the fire transmission groove 5 is annularly disposed below the annular groove 3, and the outer end of each flame stabilizing hole 4 is communicated with the fire transmission groove 5.
As shown in fig. 2 and 3, the annular groove 3 of the present embodiment communicates with the fire-transfer grooves 5 through a plurality of communication grooves 6 arranged annularly. In this embodiment, the communicating grooves 6 are formed in the structure between the flame propagation groove 5 and the annular groove 3, and the number and the positions thereof are set to correspond to the flame stabilizing holes 4 one to one.
As shown in fig. 3, the communication groove 6 and the flame stabilizing hole 4 of the present embodiment correspond in position, in which the upper end of the communication groove 6 is disposed toward the lower side of the outer flame hole passage 22, and the lower end of the communication groove 6 is disposed toward the flame stabilizing hole 4. The communicating groove 6 plays a role of communicating the flame stabilizing holes 4, and gas flowing out of the flame stabilizing holes 4 can reach the main flame holes 2 and the annular groove 3.
As shown in fig. 3, the communication groove 6 of the present embodiment includes an upper end portion 61 and a lower end portion 62, wherein the upper end portion 61 extends in the vertical direction, and the lower end portion 62 is provided inwardly and obliquely downward.
As shown in fig. 3, the upper end portion 61 of the present embodiment is disposed to be open to the outside. The open upper end portion 61 allows the upward flow of the gas from the flame stabilizing holes 4 on the one hand and also facilitates the mixing of the external gas on the other hand.
As shown in fig. 3, the flame holding hole 4 of the present embodiment includes an inner flame holding passage 41 communicating with the inner side of the fire cover body 1 and an outer flame holding passage 42 communicating with the flame transfer groove 5, wherein the outer flame holding passage 42 extends horizontally, and the inner flame holding passage 41 extends obliquely upward from the inside to the outside.
In this embodiment, the inner fire hole passage 21 and the outer fire hole passage 22 are both inclined inward and outward and extend upward. Thus, the flame emitted from the main fire hole 2 can be ensured to have a tendency of inclining upward.
As shown in fig. 1, 4 and 5, the fire lid body 1 of the present embodiment is formed by folding and connecting an upper cover 11 and a base 12, wherein the base 12 is a ring structure, the upper end of the upper cover 11 is located above the base 12, and the lower end of the upper cover 11 is inserted into the base 12. The combined fire cover body 1 is detachable in structure and convenient to clean.
As shown in fig. 3 and 4, the inner fire hole passage 21 and the outer fire hole passage 22 of the present embodiment are provided at the upper end of the upper cover 11, and as shown in fig. 3 and 5, the upper surface of the annular groove 3 of the present embodiment is formed at the lower surface of the upper end of the upper cover 11, and the lower surface of the annular groove 3 is formed at the upper surface of the base 12. Since the outer fire hole passages 22 are downwardly opened, the lower side of the outer fire hole passages 22 is exposed after the upper cover 11 is removed, thereby facilitating the cleaning of accumulated dirt. And the inner fire hole channel 21 is not easy to block due to the Z-shaped structure, and the cleaning problem does not exist.
As shown in fig. 3, 4 and 5, the flame holding hole 4 includes an inner flame holding passage 41 communicating with the inner side of the fire cover body 1 and an outer flame holding passage 42 communicating with the flame propagation groove 5, wherein the inner flame holding passage 41 is formed at the lower end of the upper cover 11, and the outer flame holding passage 42 and the flame propagation groove 5 are formed at the base 12. By machining the inner flame stabilizing channel 41 and the outer flame stabilizing channel 42 in different oblique directions on the upper cover 11 and the base 12, respectively, it is more convenient than directly machining the meandering flame stabilizing holes 4.
As shown in fig. 3, the inclination direction of the annular groove 3 of the present embodiment is set to coincide with the inclination direction of the outer fire hole passage 22. This ensures that the annular recess 3 and the outer flame hole passage 22 extend in the same direction, so that the flame can be focused and a conical flame can be generated in a stable orientation.
The embodiment also discloses a cooker, wherein the cooker comprises the fire cover. The fire cover of this embodiment can adapt to various current cooking utensils as required.
In summary, the following steps: the main fire hole is not easy to block, and the fire hole is convenient to clean. Resulting in a local diffusion action after the gas has flowed out, so that the flame is discharged in the form of a local annular flame generated between the outer fire hole channel and the root of the annular groove, and a top conical flame formed by the annular groove and the outlet of the outer fire hole channel. The zigzag configuration of the main fire holes lengthens the flashback path and reduces the possibility of reverse combustion of the flame by a tortuous path. The probability of backfire is reduced.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (15)

1. A fire lid, comprising:
a fire cover body;
the main fire hole is arranged along the peripheral wall surface of the fire cover body in a surrounding mode and comprises an inner fire hole channel and an outer fire hole channel, the inner fire hole channel and the outer fire hole channel are communicated with each other and form a Z-shaped shape, the inner fire hole channel is communicated with the inner side of the fire cover body, and the outer fire hole channel is communicated with the outer side of the fire cover body;
the annular groove, the annular groove form and sink in on the peripheral wall of fire lid body, just the annular groove set up in the below of main fire hole, wherein, the lower extreme of outside fire hole passageway open and with the upper end intercommunication of annular groove, the upper surface of outside fire hole passageway for the upper surface of annular groove is to protruding outward, is semi-closed annular between the root of outside fire hole passageway and annular groove, and the export of outside fire hole passageway and annular groove is semi-open bar.
2. The fire cover of claim 1, wherein a flame stabilizing hole is formed in the fire cover body, the flame stabilizing hole is communicated with the inner side and the outer side of the fire cover body, and the flame stabilizing hole is annularly arranged below the annular groove.
3. The fire cover of claim 2, wherein a sunken fire transfer groove is formed in the peripheral wall surface of the fire cover body, the fire transfer groove is annularly arranged below the annular groove, and the outer end of each flame stabilizing hole is communicated with the fire transfer groove.
4. The fire cover of claim 3 wherein said annular recess communicates with said fire-transfer slot through a plurality of annularly disposed communication slots.
5. The fire cover of claim 4, wherein the communication groove and the flame stabilizing hole correspond in position, wherein an upper end of the communication groove is disposed toward a lower side of the external fire hole passage, and a lower end of the communication groove is disposed toward the flame stabilizing hole.
6. The fire cover of claim 5 wherein said communication channel includes an upper end portion extending in a vertical direction and a lower end portion disposed inwardly and downwardly inclined.
7. The fire cover of claim 6 wherein said upper end portion is outwardly open.
8. The fire cover of claim 3, wherein the flame-stabilizing hole comprises an inner flame-stabilizing passage communicated with the inner side of the fire cover body and an outer flame-stabilizing passage communicated with the fire transfer groove, wherein the outer flame-stabilizing passage extends in a horizontal direction, and the inner flame-stabilizing passage extends obliquely upward from inside to outside.
9. The fire cover of claim 1 wherein said inner fire hole passage and said outer fire hole passage each extend upwardly with an inward to outward inclination.
10. The fire lid as claimed in claim 3, wherein the fire lid body is formed by folding and connecting an upper lid and a base, wherein the base is a ring structure, the upper end of the upper lid is located above the base, and the lower end of the upper lid is inserted into the base.
11. The fire cover of claim 10, wherein the inner fire hole passage and the outer fire hole passage are provided at an upper end of the upper cover, an upper surface of the annular groove is formed at a lower surface of the upper end of the upper cover, and a lower surface of the annular groove is formed at an upper surface of the base.
12. The fire cover of claim 11, wherein the flame-stabilizing hole includes an inner flame-stabilizing passage communicating with an inner side of the fire cover body and an outer flame-stabilizing passage communicating with the fire-transferring groove, wherein the inner flame-stabilizing passage is formed at a lower end of the upper cover, and the outer flame-stabilizing passage and the fire-transferring groove are formed at the base.
13. The fire lid as set forth in claim 10, wherein the peripheral wall surface of the upper lid is protruded outwardly of the peripheral wall surface of the base, so that the upper surface of the outer fire hole pathway is protruded outwardly with respect to the upper surface of the annular groove.
14. The fire cover of any one of claims 1-13, wherein the annular groove is inclined in a direction corresponding to the inclination of the outer fire hole passage.
15. Hob, characterized in, that the hob comprises a fire lid according to any one of the claims 1-14.
CN201910959262.3A 2019-10-10 2019-10-10 Fire cover and stove comprising same Active CN110566967B (en)

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Application Number Priority Date Filing Date Title
CN201910959262.3A CN110566967B (en) 2019-10-10 2019-10-10 Fire cover and stove comprising same

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Application Number Priority Date Filing Date Title
CN201910959262.3A CN110566967B (en) 2019-10-10 2019-10-10 Fire cover and stove comprising same

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CN110566967B true CN110566967B (en) 2021-06-04

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