CN217274118U

CN217274118U - Burner for gas stove

Info

Publication number: CN217274118U
Application number: CN202220328679.7U
Authority: CN
Inventors: 刘晓刚; 张波; 史丽莎; 王帅东; 余参参; 俞瑜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-08-23
Anticipated expiration: 2032-02-17

Abstract

The utility model relates to a combustor for gas-cooker, including base and gas mixing chamber, the gas mixing chamber has the fire lid, its characterized in that including being the diapire of inner circle wall and outer lane wall and connection inner circle wall and outer lane wall that the annular and concentric interval set up, inner circle wall and outer lane wall top cover: interior circle wall encloses to become to have interior gas mixing chamber and is formed with outer gas mixing chamber between interior circle wall and the outer lane wall, correspondingly, the fire lid including the main fire hole that is linked together with interior gas mixing chamber and the steady fire hole that is linked together with outer gas mixing chamber, through the interface channel intercommunication between interior gas mixing chamber and the outer gas mixing chamber, compare with prior art, the utility model has the advantages of: the fire stabilizing hole can stabilize the flame and hold the main fire hole and simultaneously can be connected through the connecting channel between the inner air mixing cavity and the outer air mixing cavity, so that when flameout occurs due to adjustment of firepower in the inner air mixing cavity, all the main holes of the fire cover can be ignited again through the stability of the fire stabilizing hole, and the flame is kept normal.

Description

Burner for gas stove

Technical Field

The utility model relates to a domestic kitchen utensils and appliances technical field especially relates to a combustor for gas-cooker.

Background

The furnace end used by the existing kitchen range in the current market comprises an inner injection pipe, an outer injection pipe, an inner gas mixing chamber and an outer gas mixing chamber; the inner injection pipe and the outer injection pipe are perpendicular to each other, or the inner injection pipe and the outer injection pipe are on the same horizontal plane. When the air inlet device is used, if the inner injection pipe and the outer injection pipe are perpendicular to each other, the air inlet of the inner injection pipe and the air inlet of the outer injection pipe are in different directions, so that air is not conveniently connected, and the adjustment is not convenient; if the inner injection pipe and the outer injection pipe are on the same horizontal plane, the resistance of the outer air mixing cavity is large, so that the injection capacity and primary air supply of the outer injection pipe are influenced, insufficient gas combustion is caused, the heat efficiency is reduced, and energy is wasted. In order to solve the technical problem, for example, a Chinese utility model 'a stove burner' with patent number ZL201520397998.3 (with the publication number CN204786416U) discloses a stove burner, which is characterized by comprising a base, an outer gas mixing cavity, an inner gas mixing cavity, an outer injection pipe and an inner injection pipe; wherein the outer gas mixing cavity and the inner gas mixing cavity are both arranged on the base, and the inner gas mixing cavity is positioned in the center of the outer gas mixing cavity and isolated from each other; through this improvement scheme for draw in the pipe and draw outward and draw the pipe on a horizontal plane, thereby make the gas that mixes the gas intracavity outward flow smoothly, mix fully, no matter be outer gas mixing chamber or interior gas mixing chamber in this cooking utensils furnace end, its fire lid that corresponds respectively only has a gas mixing chamber, is not suitable for having the cooking utensils combustor of stable small fire.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a be applicable to and have a combustor for gas-cooker of stable little fire.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this a combustor for gas-cooker, including base and gas mixing chamber, the gas mixing chamber is including being the diapire that is the inner circle wall and outer lane wall and connection inner circle wall and outer lane wall that annular and concentric interval set up, inner circle wall and outer lane wall top cover have fire lid, its characterized in that: the inner ring wall is surrounded to form an inner gas mixing cavity, an outer gas mixing cavity is formed between the inner ring wall and the outer ring wall, correspondingly, the fire cover comprises a main fire hole communicated with the inner gas mixing cavity and a fire stabilizing hole communicated with the outer gas mixing cavity, and the inner gas mixing cavity is communicated with the outer gas mixing cavity through a connecting channel.

In order to facilitate the arrangement of the connecting channel, from the viewpoint of simple structure, preferably, the inner ring wall and the outer ring wall are connected through a connecting block so that the outer air mixing chamber is in a "C" shape, the connecting channel is formed on the connecting block, and correspondingly, the inner ring wall is provided with a notch communicated with the connecting channel. The gas mixture that interior gas mixing intracavity and primary air constitute is through the connecting channel on the breach flow direction connecting block with the inner ring wall, like this when the firepower begins to adjust, the gas mixture that gets into interior gas mixing chamber reduces rapidly, and the gas mixture of outer gas mixing chamber then because connecting channel's resistance restriction, the gas mixture proportion that persists in it does not change, then continue to flow through the flame stabilizing hole of fire lid, make the flame holding stability in flame stabilizing hole, even appear interior gas mixing chamber because of adjusting the firepower and appear flame-out phenomenon, also can ignite the whole main holes of fire lid once more, in order to keep flame normal.

In order to increase the resistance of the connecting channel, it is preferred that said connecting channel is in the shape of a straight line towards the end mouth of the "C" in the outer air mixing chamber. Because the connecting channel is in a straight shape and can be vertical to the gap of the inner ring wall, the flow resistance from the inner air mixing cavity to the outer air mixing cavity can be increased.

In order to better realize the connection between the fire cover and the gas mixing chamber, preferably, the fire cover is connected with the inner ring wall and the outer ring wall through a connecting piece, and a sealing cover part for sealing the gap and the top opening of the connecting channel is arranged at the position of the connecting piece corresponding to the connecting channel. Meanwhile, the gap of the inner ring wall and the top opening of the connecting channel can be sealed by the sealing part of the connecting piece, so that the resistance of the connecting channel is increased by reducing the top opening part of the connecting channel.

The connecting piece is considered from the angle of simple structure, preferably, the connecting piece is including being annular and the concentric interval setting connect the inner circle, connect the outer lane and will connect the inner circle and connect the connecting portion that the outer lane is connected, connecting portion edge connecting piece circumference interval sets up, wherein, connect the inner circle with inner circle wall looks butt and connect the outer lane then with outer lane wall looks butt. Because the connecting parts are arranged along the circumferential direction of the connecting piece, the space between the adjacent connecting parts forms a gas channel communicated with the outer gas mixing cavity, and gas is supplied to the fire cover.

In order to realize that the main fire hole and the fire stabilizing hole of the fire cover are provided with independent chambers, preferably, the fire cover comprises an annular peripheral wall and a top wall covering the annular peripheral wall, a circle of connecting convex ring capable of abutting against the connecting inner ring extends towards the connecting inner ring of the connecting piece from the inner periphery of the annular peripheral wall, and under the condition that the connecting convex ring and the annular peripheral wall respectively abut against the connecting inner ring and the connecting outer ring of the connecting piece, the outer air mixing cavity forms a chamber independently supplying air to the fire stabilizing hole, and the inner air mixing cavity forms a chamber independently supplying air to the main fire hole. Therefore, the flame of the outer gas mixing cavity corresponding to the fire stabilizing hole is kept stable due to the limitation of the connecting channel, and all the main holes of the fire cover can be ignited again even if the inner gas mixing cavity corresponding to the main fire hole is flamed out due to fire adjustment, so that the whole flame of the fire cover is kept normal.

In order to realize stable combustion of the fire stabilizing holes, preferably, a circle of fire stabilizing grooves communicated with the fire stabilizing holes are formed in the annular peripheral wall of the fire cover along the circumferential direction, the air outlet ends of the fire stabilizing holes are communicated with the fire stabilizing grooves, and the air inlet ends of the fire stabilizing holes are formed in the annular peripheral wall.

In order to realize that the inner gas mixing cavity is used as a main gas mixing cavity of the fire cover, preferably, an injection pipe communicated with the inner gas mixing cavity is arranged on the base.

Compared with the prior art, the utility model has the advantages of: the main fire hole of this combustor fire lid independently corresponds has interior gas mixing chamber, and steady fire hole then independently corresponds has outer gas mixing chamber, can also be connected through connecting channel between interior gas mixing chamber and the outer gas mixing chamber when steady fire hole can steady flame main fire hole like this, when avoiding taking place interior gas mixing chamber and appearing flameout because of adjusting the firepower, also can ignite whole main holes of fire lid once more through the stability of steady fire hole to keep flame normal.

Drawings

FIG. 1 is a schematic structural diagram of a burner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view at an angle of FIG. 1;

FIG. 3 is a cross-sectional view at another angle from FIG. 1;

FIG. 4 is a schematic structural view of a gas mixing chamber according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of the fire cover in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 6, the preferred embodiment of the present invention is shown. Because the existing burner for the gas stove has insufficient small fire stability or small fire which is not small enough and is generally maintained at about 500w, the load is reduced again and the problem of automatic flameout is very easy to occur because of the limitation of various boundary conditions, the reason is as follows: the injection process of the normal combustor is that power is provided through a nozzle to entrain surrounding air, when the main fire speed formed by the main fire holes 31 is switched, the gas sprayed by the nozzle is decelerated in advance, surrounding primary air is kept for a very short time under the action of inertia force, under the condition, the ratio of the mixed gas to the air is changed completely, the primary air is far larger than the gas quantity, flame can also change in the same way, the flame does not directly reduce the height but retracts, the phenomenon of transient tempering occurs, if the strength of the fire holes is too low at the moment, flame extinguishment directly occurs, if the flame is in a critical state, the flame is lengthened after retraction, and stable combustion is continued. To this end, the burner of the present embodiment solves the above problems, and specifically, the burner for a gas stove of the present embodiment includes a base 1 and a gas mixing chamber 2, the gas mixing chamber 2 includes an inner ring wall 21 and an outer ring wall 22 which are annular and concentrically arranged at an interval, and a bottom wall 23 connecting the inner ring wall 21 and the outer ring wall 22, a fire cap 3 covers over the inner ring wall 21 and the outer ring wall 22, wherein the inner ring wall 21 encloses an inner gas mixing chamber 211, and an outer gas mixing chamber 221 is formed between the inner ring wall 21 and the outer ring wall 22, correspondingly, the fire cap 3 includes a main fire hole 31 communicated with the inner gas mixing chamber 211 and a fire stabilizing hole 32 communicated with the outer gas mixing chamber 221, and the inner gas mixing chamber 211 is communicated with the outer gas mixing chamber 221 through a connecting channel 4. This burner fire lid 3's main fire hole 31 is independent to correspond has interior gas mixing chamber 211, and steady fire hole 32 is then independent to correspond has outer gas mixing chamber 221, steady fire hole 32 can be steady flame and can also be connected through connecting channel 4 between interior gas mixing chamber 211 and the outer gas mixing chamber 221 when main fire hole 31 is lived, when flame-out appears because of adjusting the firepower in the gas mixing chamber 211 in avoiding taking place, also can ignite the whole main holes of fire lid 3 once more through steady fire hole 32's stability, so as to keep flame normal, for realizing "main gas mixing chamber" of interior gas mixing chamber 211 as fire lid 3, be provided with on the base 1 with the injection pipe 6 of interior gas mixing chamber 211 intercommunication.

Specifically, the setting manner of the connection channel 4 in this embodiment is as follows: the inner ring wall 21 and the outer ring wall 22 are connected through the connecting block 24 to make the outer air mixing chamber 221 in a "C" shape, the connecting channel 4 is opened on the connecting block 24, and correspondingly, the inner ring wall 21 is opened with a notch 212 communicated with the connecting channel 4. The gas mixture that gas and primary air in interior gas mixture chamber 211 constitute flows to connecting channel 4 on the connecting block 24 through the breach 212 with inner circle wall 21, like this when firepower begins to adjust, the gas mixture that gets into interior gas mixture chamber 211 reduces rapidly, and the gas mixture of outer gas mixture chamber 221 is then because connecting channel 4's resistance restriction, and the gas mixture proportion that persists in it does not change, then continue to flow through the steady fire hole 32 of fire lid 3 for the flame of steady fire hole 32 keeps stable, even appear interior gas mixture chamber 211 because of adjusting the firepower and appear flame-out phenomenon, also can light all main holes of fire lid 3 once more, in order to keep flame normal. In order to increase the resistance of the connecting channel 4, the connecting channel 4 is in a line shape facing the end portion of the C shape in the outer air mixing chamber 221, so that the connecting channel 4 can be in a line shape and can be perpendicular to the notch 212 of the inner ring wall 21, thereby increasing the flow resistance of the inner air mixing chamber 211 to the outer air mixing chamber 221. In order to better realize the connection between the fire cover 3 and the gas mixing chamber 2, the fire cover 3 is jointed with the inner ring wall 21 and the outer ring wall 22 through the connecting piece 5, and the position of the connecting piece 5 corresponding to the connecting channel 4 is provided with a sealing cover part 51 which seals the gap 212 and the top opening of the connecting channel 4. Meanwhile, the notch 212 of the inner ring wall 21 and the open top of the connecting channel 4 can be sealed by the cover part 51 of the connecting member 5 to increase the resistance of the connecting channel 4 by reducing the open top of the connecting channel 4. In view of simple structure of the connector 5, it is preferable that the connector 5 includes a connection inner ring 52, a connection outer ring 53, and a connection portion 54 connecting the connection inner ring 52 and the connection outer ring 53, the connection portion 54 being disposed at intervals along a circumferential direction of the connector 5, the connection inner ring 52 being in contact with the inner ring wall 21, and the connection outer ring 53 being in contact with the outer ring wall 22. Since the connection parts 54 are arranged along the circumferential direction of the connection member 5, the interval between the adjacent connection parts 54 constitutes a gas passage communicating with the outer gas mixing chamber 221, thereby supplying gas to the fire cover 3.

Correspondingly, in order to realize that the main fire hole 31 and the fire stabilizing hole 32 of the fire cover 3 are provided with independent chambers, the fire cover 3 comprises an annular peripheral wall 33 and a top wall 34 covered on the annular peripheral wall 33, a circle of connecting convex ring 331 which can abut against the connecting inner ring 52 extends towards the connecting inner ring 52 of the connecting piece 5 on the inner periphery of the annular peripheral wall 33, under the condition that the connecting convex ring 331 and the annular peripheral wall 33 abut against the connecting inner ring 52 and the connecting outer ring 53 of the connecting piece 5 respectively, the outer air mixing chamber 221 forms a chamber which independently supplies air to the fire stabilizing hole 32, and the inner air mixing chamber 211 forms a chamber which independently supplies air to the main fire hole 31, so that the outer air mixing chamber 221 corresponding to the fire stabilizing hole 32 can keep the flame stable due to the limitation of the connecting channel 4, and even if the inner air mixing chamber 211 corresponding to the main fire hole 31 has flameout phenomenon due to the fire adjustment, all the main holes of the fire cover 3 can be ignited again, to keep the flame of the fire cover 3 normal. In addition, a circle of fire stabilizing grooves 36 communicated with the fire stabilizing holes 32 are formed in the annular peripheral wall 33 of the fire cover 3 along the circumferential direction, the air outlet ends 321 of the fire stabilizing holes 32 are communicated with the fire stabilizing grooves 36, and the air inlet ends 322 of the fire stabilizing holes 32 are formed in the annular peripheral wall 33, so that stable combustion of the fire stabilizing holes 32 is realized.

The specific stable combustion process of the burner for the gas stove is as follows:

the gas is firstly ejected through the ejection pipe 6 and the nozzle, the mixed gas is formed after the external primary air is attracted and enters the inner mixed gas cavity 211 together, the mixed gas in the inner mixed gas cavity 211 flows to the connecting channel 4 on the connecting block 24 through the notch 212 of the inner ring wall 21 and enters the outer mixed gas cavity 221, the outer mixed gas cavity 221 forms a cavity which independently supplies air to the fire stabilizing hole 32 after passing through the connecting piece 5 respectively, the inner mixed gas cavity 211 forms a cavity which independently supplies air to the main fire hole 31, and finally, the mixed gas flowing out of the main fire hole 31 and the fire stabilizing hole 32 is ignited together with the external secondary air to form main fire and stable fire.

Claims

1. The utility model provides a combustor for gas-cooker, is including base (1) and gas mixing chamber (2), gas mixing chamber (2) including be annular and concentric inner ring wall (21) and outer lane wall (22) that set up at interval and bottom wall (23) of connecting inner ring wall (21) and outer lane wall (22), inner ring wall (21) and outer lane wall (22) top cover have fire lid (3), its characterized in that: the fire cover is characterized in that an inner air mixing cavity (211) is formed by the inner ring wall (21) in a surrounding mode, an outer air mixing cavity (221) is formed between the inner ring wall (21) and the outer ring wall (22), correspondingly, the fire cover (3) comprises a main fire hole (31) communicated with the inner air mixing cavity (211) and a fire stabilizing hole (32) communicated with the outer air mixing cavity (221), and the inner air mixing cavity (211) is communicated with the outer air mixing cavity (221) through a connecting channel (4).

2. Burner for gas cooktops according to claim 1, characterized in that: the inner ring wall (21) and the outer ring wall (22) are connected through a connecting block (24) to enable the outer air mixing cavity (221) to be C-shaped, the connecting channel (4) is formed in the connecting block (24), and correspondingly, the inner ring wall (21) is provided with a notch (212) communicated with the connecting channel (4).

3. Burner for gas cooktops according to claim 2, characterized in that: the connecting channel (4) is in a straight shape facing the C-shaped port part in the outer air mixing cavity (221).

4. Burner for gas cooktops, according to claim 3, characterized in that: the fire cover (3) is connected with the inner ring wall (21) and the outer ring wall (22) through a connecting piece (5), and a sealing cover part (51) for sealing the notch (212) and the top opening of the connecting channel (4) is arranged at the position, corresponding to the connecting channel (4), of the connecting piece (5).

5. Burner for gas cooktops according to claim 4, characterized in that: the connecting piece (5) comprises a connecting inner ring (52), a connecting outer ring (53) and connecting parts (54), wherein the connecting inner ring (52) and the connecting outer ring (53) are arranged in an annular shape at concentric intervals, the connecting parts (54) are connected with each other along the circumferential direction of the connecting piece (5), the connecting inner ring (52) is abutted against the inner ring wall (21), and the connecting outer ring (53) is abutted against the outer ring wall (22).

6. Burner for gas cooktops according to claim 5, characterized in that: the fire cover (3) comprises an annular peripheral wall (33) and a top wall (34) covering the annular peripheral wall (33), a circle of connecting convex ring (331) capable of abutting against the connecting inner ring (52) extends towards the connecting inner ring (52) of the connecting piece (5) from the inner periphery of the annular peripheral wall (33), the outer air mixing cavity (221) forms a cavity independently supplying air to the fire stabilizing hole (32) under the condition that the connecting convex ring (331) and the annular peripheral wall (33) respectively abut against the connecting inner ring (52) and the connecting outer ring (53) of the connecting piece (5), and the inner air mixing cavity (211) forms a cavity independently supplying air to the main fire hole (31).

7. Burner for gas cooktops according to claim 6, characterized in that: the annular peripheral wall (33) of the fire cover (3) is provided with a circle of fire stabilizing grooves (36) communicated with the fire stabilizing holes (32) along the circumferential direction, the air outlet ends (321) of the fire stabilizing holes (32) are communicated with the fire stabilizing grooves (36), and the air inlet ends (322) of the fire stabilizing holes (32) are arranged on the annular peripheral wall (33).

8. The burner for a gas range according to any one of claims 1 to 7, wherein: an injection pipe (6) communicated with the inner gas mixing cavity (211) is arranged on the base (1).