CN215675188U

CN215675188U - Central fire cover and burner thereof

Info

Publication number: CN215675188U
Application number: CN202121788085.6U
Authority: CN
Inventors: 黄伏明
Original assignee: Guangdong Pilot Metal Manufacturing Co ltd
Current assignee: Guangdong Pilot Metal Manufacturing Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-28
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to a central fire cover and a burner thereof, wherein the central fire cover comprises a fire cover body, the fire cover body is provided with a gas mixing cavity and a plurality of fire spraying hole structures, and the gas mixing cavity is communicated with the outside through the fire spraying hole structures; the fire spraying hole structure is at least partially positioned at the top of the fire cover body; the outer top surface of fire lid body is equipped with the collecting tank that is used for collecting liquid. The central fire cover has large gas output and good combustion effect.

Description

Central fire cover and burner thereof

Technical Field

The utility model relates to a gas cooker, in particular to a central fire cover and a burner thereof.

Background

In the gas cooking utensils of central fire were taken to the tradition, in order to avoid the water or fluid of pan (generally indicate the round bottom pot) bottom to drip to central air nozzle and lead to central air nozzle to block up, current central fire lid on the market generally adopts roof confined structure to set up, so the fire hole then can only be unified set up on the lateral wall of central fire lid, because the lateral wall area of central fire lid is limited, lead to the total area in a plurality of fire holes less, the air output is less, the combustion effect is not good enough.

Therefore, further improvements to existing fire center covers are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the central fire cover and the burner thereof.

The purpose of the utility model is realized as follows:

a central fire cover comprises a fire cover body, wherein a gas mixing cavity and a plurality of fire spraying hole structures are arranged on the fire cover body, and the gas mixing cavity is communicated with the outside through the fire spraying hole structures; the fire spraying hole structure is at least partially positioned at the top of the fire cover body; the outer top surface of fire lid body is equipped with the collecting tank that is used for collecting liquid.

The fire cover body comprises a top wall and a side wall, and the top wall and the side wall jointly enclose the mixed gas cavity; the flame spray hole structure comprises a first flame hole arranged on the top wall and a second flame hole arranged on the side wall; the gas mixing cavity is communicated with the outside through the first fire hole and the second fire hole respectively.

The first fire hole extends radially relative to the top wall, the second fire hole extends axially relative to the side wall, and one end of the first fire hole is connected with one end of the second fire hole. Or the first fire hole is independently arranged on the top wall; the second fire hole is independently arranged on the side wall.

One end of the second fire hole is provided with a slope surface inclined relative to the axis a of the fire cover body, and the slope angle alpha of the slope surface is 30-60 degrees.

The total area of the first fire holes is S1, and the axial projection area of the fire cover body is S2; the axial ventilation rate of the fire cover body is Delta S, and the Delta S = S1/S2=25% -60%.

The top surface of the fire cover body is a horizontal plane; the side surface of the fire cover body is an annular vertical surface or a conical surface with a small upper part and a large lower part.

The sump is recessed relative to the outer top surface to form a space for collecting liquid.

The internal top surface of fire lid is equipped with the portion of flow equalizing that is used for evenly dividing the fire, and the relative top surface of portion of flow equalizing is protruding in order to form the convex part that is used for evenly shunting mist.

A burner comprises an injection pipe and the central fire cover; the fire cover body is provided with an inserting part and a supporting step, the end part of the injection pipe is matched and inserted with the inserting part, and the supporting step is supported on the end face of the injection pipe.

The utility model has the following beneficial effects:

the liquid collecting groove is formed in the outer top surface of the fire cover body to collect water and/or oil dripping from the bottom of the pot, so that the central air nozzle is effectively prevented from being blocked by impurities such as the water and/or the oil; because set up the collecting tank and collect water and/or fluid, consequently can set up the fire hole simultaneously on the roof and the lateral wall of central fire lid, and then effectively increase the air output of central fire lid, make combustion effect better. In addition, be equipped with the portion of flow equalizing on the internal top surface of fire lid, effectual homodisperse mist to each fire hole makes the combustion effect of center fire lid more even.

Drawings

Fig. 1 is a schematic structural view of a central fire cover in a first embodiment of the utility model.

Fig. 2 is a sectional view of a center fire cover in a first embodiment of the present invention.

Fig. 3 is a sectional view showing a state in which the burner is used according to the first embodiment of the present invention.

FIG. 4 is a schematic structural view of a central fire cover in a second embodiment of the present invention.

FIG. 5 is a schematic structural view of a fire cover of the center in the third embodiment of the present invention.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Referring to fig. 1-2, the central fire cover according to the embodiment includes a hat-shaped fire cover body 1, a gas mixing cavity 2 is arranged inside the fire cover body 1, and a plurality of fire hole structures are arranged on the surface of the fire cover body, ten fire hole structures are annularly and uniformly arranged in the embodiment, and the gas mixing cavity 2 is communicated with the outside through the fire hole structures; the fire spraying hole structure is at least partially positioned at the top of the fire cover body 1; the outer top surface central authorities of fire lid body 1 are equipped with the catch basin 8 that is used for collecting liquid, and the flame projecting hole structure is around 8 annular equipartitions of catch basin. According to the central fire cover, the liquid collecting tank 8 is arranged in the center of the outer top surface of the fire cover body 1 to collect water and/or oil dripping from the bottom of the pot 21, so that the central air nozzle 13 is effectively prevented from being blocked by impurities such as water and/or oil; because the liquid collecting tank 8 is arranged to collect water and/or oil, the top and the side of the fire cover body 1 can be provided with the fire spraying hole structures at the same time, so that the gas output of the central fire cover is effectively increased, and the combustion effect is better; the amount of water and/or oil dropped through the pot 21 is often less, and the central fire cover has higher residual temperature when dropping, so that the dropped water can be quickly gasified, and the dropped oil is stored and burned in the next burning process.

Further, the fire cover body 1 comprises a top wall 3 and a side wall 4, and the top wall 3 and the side wall 4 jointly enclose a gas mixing cavity 2 with an opening at the bottom end; the flame-spraying hole structure comprises a first flame hole 5 arranged on the top wall 3 and a second flame hole 6 arranged on the side wall 4; the gas mixing cavity 2 is communicated with the outside through a first fire hole 5 and a second fire hole 6 respectively; through setting up first fire hole 5 and second fire hole 6, effectively increase the air output of fire lid body 1, make the holistic combustion effect of center fire lid better.

Further, the relative roof 3 radial extensions in first fire hole 5, the relative lateral wall 4 axial extensions in second fire hole 6, the tip interconnect that the tip that first fire hole 5 radially outwards extended and the 6 axial of second fire hole upwards extended makes the fire hole structure whole body that spouts the fire and forms the fire hole of L shape, effectively guarantees the air output, and processing is convenient.

Furthermore, the end part of the second fire hole 6 extending downwards in the axial direction is provided with a slope surface 7 inclining inwards relative to the axis a of the fire cover body 1, the slope angle alpha of the slope surface 7 is 45 degrees, and the slope surface 7 can guide flame upwards in an inclined mode.

Further, the total area of the plurality of first fire holes 5 is S1, and the axial projection area of the fire cover body 1 is S2; the axial ventilation rate of the fire lid body 1 is Δ S, Δ S = S1/S2=50% (tolerance of ± 2% is allowed).

Further, the top surface of the fire cover body 1 is a horizontal plane; the side surface of the fire cover body 1 is an annular vertical surface (or a conical surface with a small upper part and a big lower part).

Further, the sump 8 is recessed with respect to the outer top surface to form a space for collecting liquid, and the sump 8 in this embodiment is tapered.

Further, the top surface is equipped with the portion of flow equalizing 9 that is used for evenly dividing the fire in the fire lid body 1, and the portion of flow equalizing 9 is protruding in order to form the conical convex part that is used for evenly shunting mist in the relative interior top surface.

Referring to fig. 3, the burner according to the present embodiment includes an injection pipe 12, a central air nozzle 13, and the central fire cover; an inserting part 10 is arranged at the bottom opening of the fire cover body 1, a supporting step 11 is arranged on the inner side wall of the fire cover body, the top end of the injection pipe 12 is matched and inserted with the inserting part 10, and the supporting step 11 is supported on the top end face of the injection pipe 12; the liquid collecting tank 8 corresponds to the lowest position of the bottom of the pot 21 (round bottom pot) up and down; the central air nozzle 13 is arranged below the injection pipe 12 at intervals. The gas is sprayed into the ejector pipe 12 through the central air nozzle 13, the outside air enters the ejector pipe 12 through the gap between the ejector pipe 12 and the central air nozzle 13, the gas is mixed with the gas mixing cavity 2 in the inner cavity of the ejector pipe 12 through the air, and finally the gas is sprayed and combusted through the flame-spraying hole structure; in fig. 3, the solid arrows represent the gas delivery trajectory and the hollow joints represent the air delivery trajectory.

Second embodiment

Referring to fig. 4, the present embodiment relates to a center fire cover different from the first embodiment in that: six fire-spraying hole structures are annularly and uniformly distributed, and the axial ventilation rate delta S = S1/S2=30% (allowing a tolerance of +/-2%) of the fire cover body 1.

Other parts not described above are the same as those of the first embodiment, and are not explained in detail here.

Third embodiment

Referring to fig. 5, the present embodiment relates to a center fire cover different from the first embodiment in that: the first fire holes 5 are independently formed in the top wall 3 and are annularly and uniformly distributed around the liquid collecting tank 8; the second fire holes 6 are independently arranged on the side wall 4;

further, the axial ventilation rate Δ S = S1/S2=30% (tolerance of ± 2%) of fire lid body 1.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is intended to be protected by the following claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A central fire cover is characterized in that: the fire cover comprises a fire cover body (1), wherein a gas mixing cavity (2) and a plurality of fire spraying hole structures are arranged on the fire cover body (1), and the gas mixing cavity (2) is communicated with the outside through the fire spraying hole structures; the fire spraying hole structure is at least partially positioned at the top of the fire cover body (1); the top of the fire cover body (1) is provided with a liquid collecting tank (8) for collecting liquid.

2. The fire center cover of claim 1, wherein: the fire cover body (1) comprises a top wall (3) and a side wall (4), and the top wall (3) and the side wall (4) jointly enclose the gas mixing cavity (2); the flame spray hole structure comprises a first flame hole (5) arranged on the top wall (3) and a second flame hole (6) arranged on the side wall (4); the gas mixing cavity (2) is communicated with the outside through the first fire hole (5) and the second fire hole (6) respectively.

3. The fire center cover of claim 2, wherein: the first fire hole (5) extends radially relative to the top wall (3), the second fire hole (6) extends axially relative to the side wall (4), and one end of the first fire hole (5) is connected with one end of the second fire hole (6).

4. The fire center cover of claim 2, wherein: the first fire holes (5) are independently arranged on the top wall (3); the second fire holes (6) are independently arranged on the side wall (4).

5. The fire center cover of claim 2, wherein: one end of the second fire hole (6) is provided with a slope surface (7) which inclines relative to the axis (a) of the fire cover body (1), and the slope angle alpha of the slope surface (7) is 30-60 degrees.

6. The fire center cover of claim 2, wherein: the total area of the first fire holes (5) is S1, and the axial projection area of the fire cover body (1) is S2; the fire cover body (1) has an axial ventilation rate of deltaS, and the deltaS = S1/S2=25% -60%.

7. The fire center cover of claim 1, wherein: the top surface of the fire cover body (1) is a horizontal plane; the side surface of the fire cover body (1) is an annular vertical surface or a conical surface with a small upper part and a large lower part.

8. The center fire cover of any one of claims 1-7, wherein: the sump (8) is recessed relative to the outer top surface to form a space for collecting liquid.

9. The center fire cover of any one of claims 1-7, wherein: the top surface is equipped with the portion of flow equalizing (9) that is used for evenly dividing the fire in fire lid body (1), and portion of flow equalizing (9) is protruding in order to form the convex part that is used for evenly shunting mist in the relative interior top surface.

10. A burner, characterized by: comprises an injection pipe (12) and a central fire cover according to claim 1; the fire cover is characterized in that the fire cover body (1) is provided with an inserting part (10) and a supporting step (11), the end part of the injection pipe (12) is matched and inserted with the inserting part (10), and the supporting step (11) is supported on the end surface of the injection pipe (12).