CN205119063U - Combustor of said flower shape big fire lid is covered and cooperates in big fire of domestic cooking utensils flower shape - Google Patents

Abstract

The utility model discloses a flower-shaped large fire cover for a household cooker, which comprises a ring-shaped cover body, at least two rows of outer ring fire outlet holes are arranged on the outer surface of the cover body at intervals, and at least two rows of fire outlet holes are arranged on the top surface of the cover body along the circumferential direction. A downwardly concave arc concave surface, the arc concave surface is divided into a first arc surface and a second arc surface, the first arc surface is provided with a plurality of inner ring fire outlet holes, one of the inner ring fire There is a fire starting groove between the fire outlet hole and the fire outlet hole of the outer ring. After adopting the above structure, the utility model not only has a beautiful appearance like a flower, but also increases the total area of the fire outlet hole in the inner ring through the four downwardly concave arc-shaped concave surfaces, and increases the combustion capacity of the fire hole, and at the same time The heat load of the burner is also increased, and the experiment shows that the minimum rated heat load of the utility model is 4.5kW, and the energy efficiency meets the national first-class standard. The utility model also discloses a burner matched with the flower-shaped fire cover.

Description

A flower-shaped large fire cover for a household cooker and a burner matching the flower-shaped large fire cover

technical field

The utility model discloses a flower-shaped large fire cover for a domestic cooker and a burner matched with the flower-shaped large fire cover, which belongs to the technical field of household gas cookers.

Background technique

With the further advancement of national energy-saving and emission reduction measures, the country will implement the "Household/Gas Cooker Energy Efficiency Limits and Energy Efficiency Grades" in 2015. At present, the outer diameter of the burner of the household gas cooker burner is basically ≥120mm, and the heat load is above 4.2kW. The thermal efficiency basically cannot reach the national first-level energy efficiency. In order to meet the national standard, some manufacturers on the market have reduced the heat load. The main performance is that the diameter of the fire cover is ≤120mm and the heat load is below 4.0kW. Achieving stir-fry is obviously not in line with China's national conditions. The large fire cover generally has an outer ring fire hole and an inner ring fire hole, but there are few fire holes distributed between the outer ring fire hole and the inner ring fire hole. The heating is very uneven, which not only requires the user to spend a long time for cooking, but also relatively consumes more gas, resulting in low thermal efficiency and certain adverse effects on the taste of food. At the same time, the applicant believes that the center fire of the existing household gas cooker is too small, basically less than 0.8kW, resulting in that the food in the center is much slower than the food in the outer circle during cooking.

Utility model content

In order to solve the above problems, the first purpose of this utility model is to provide a flower-shaped large fire cover for household stoves, which improves the distribution of fire holes, makes the distribution of fire holes more uniform, and achieves the national energy efficiency level. It can also be above 4.5kW, with high thermal efficiency.

Another purpose of the utility model is to provide a burner matched with the flower-shaped fire cover, which has high thermal efficiency.

In order to achieve the above object, the solution of the utility model is: a flower-shaped large fire cover for a household cooker, which includes a ring-shaped cover body, at least two rows of outer ring fire outlet holes are arranged on the outer side of the cover body, and the top of the cover body The surface is provided with at least two downwardly concave arc-shaped concave surfaces along the circumferential direction. The arc-shaped concave surfaces are divided into a first arc-shaped surface and a second arc-shaped surface. A fire outlet, wherein a fire ignition groove is provided between an inner ring fire outlet hole and the outer ring fire outlet hole. The above-mentioned second arc-shaped surface facilitates the outflow of sewage and prevents the fire outlet hole of the inner ring from being blocked.

As a further setting of the above scheme: the top surface of the cover body is evenly distributed along the circumferential direction with four downwardly concave arc-shaped concave surfaces, and the first arc-shaped surface is at an angle a relative to the horizontal plane, 30°≤a≤40° °; the second arc surface forms an angle β with respect to the horizontal plane, 1°≤β≤6°; the fire outlet hole of the inner ring forms an angle r with respect to the horizontal plane, 30°≤r≤50°.

The first arc-shaped surface forms an angle a with respect to the horizontal plane, and a is 32°; the second arc-shaped surface forms an angle β with respect to the horizontal plane, and β is 3°; the inner ring fire outlet forms an angle r with respect to the horizontal plane, r is 45°.

Four rows of outer ring fire holes are evenly spaced on the outer surface of the cover, and each row of outer ring fire holes is set corresponding to the arc-shaped concave surface; the outer surface of the cover is at an angle of θ with respect to the vertical plane, and 25°≤θ ≤35°; the fire outlet hole of the outer ring is at an angle b relative to the horizontal plane, 25°≤b≤35°.

The outer surface of the cover forms an angle θ with respect to the vertical plane, where θ is 30°, and the fire outlet hole of the outer ring forms an angle b with respect to the horizontal plane, where b is 30°.

An arc-shaped convex surface is located between two adjacent arc-shaped concave surfaces on the cover body, and secondary air supply can be performed on the arc-shaped convex surface.

A burner matched with the flower-shaped large fire cover, including a burner head with the flower-shaped large fire cover and a small fire cover on the burner head, and a secondary air supply hole on the side of the burner head.

The small fire cover is provided with an upper fire hole and a lower fire hole, the inclination d of the upper fire hole relative to the horizontal plane is 45°≤d≤55°; the inclination c of the lower fire hole relative to the horizontal plane is 25° ≤c≤30°. Compared with the prior art, the area of the fire hole of the above-mentioned small fire cover is obviously increased, thereby increasing the heat load, and the heat load of the utility model can reach 1.5KW.

The inclination angles d and d of the upper fire discharge holes relative to the horizontal plane are 50°; the inclination angles c and c of the lower fire discharge holes relative to the horizontal plane are 28°.

There is a positioning groove on the burner head, and a positioning pin is provided at the bottom of the flower-shaped fire cover, and the positioning pin is arranged on the positioning groove.

After adopting the above structure, the utility model not only has a beautiful appearance like a flower, but also increases the total area of the fire outlet hole in the inner ring through the four downwardly concave arc-shaped concave surfaces, and increases the combustion capacity of the fire hole, and at the same time The heat load of the burner is also increased, and the experiment shows that the minimum rated heat load of the utility model is 4.5kW, and the energy efficiency meets the national first-class standard.

Description of drawings

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the structural representation of the utility model flower-shaped fire cover;

Fig. 2 is the front structural schematic diagram of the burner of the present utility model;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is a sectional view taken along line A-A of Fig. 3 .

detailed description

Referring to Fig. 1, a flower-shaped large fire cover for a household cooker includes a ring-shaped cover body 1, four rows of outer ring fire holes 2 are evenly spaced on the outer surface of the cover body 1, and the top surface of the cover body 1 is along the There are four arc-shaped concave surfaces 3 that are evenly spaced in the circumferential direction, and each row of the outer ring fire holes 2 is set correspondingly to the arc-shaped concave surfaces 3, and the arc-shaped concave surfaces 3 are divided into first arc-shaped Surface 4, second arc-shaped surface 5, the first arc-shaped surface 4 is provided with a plurality of inner ring fire outlet holes 7, one of the inner ring fire outlet holes 7 is described and corresponds to an outer ring fire outlet hole 2 have ignition groove 9 between.

See Fig. 2, Fig. 3, Fig. 4 again, described first arc-shaped surface 4 is angle a with respect to horizontal plane, 30°≤a≤40°, preferably a is 32°; Described second arc-shaped surface 5 is relative to horizontal plane The horizontal plane forms an angle β, 1°≤β≤6°, preferably β is 3°; the inner ring fire outlet 7 forms an angle r with respect to the horizontal plane, 30°≤r≤50°, preferably r is 45°. The outer surface of the cover body 1 forms an angle θ with respect to the vertical plane, 25°≤θ≤35°, preferably θ is 30°; the fire outlet hole 2 of the outer ring forms an angle b with respect to the horizontal plane, 25°≤b≤35° , preferably b is 30°. The setting of the angles of the outer ring fire outlet hole 2 and the inner ring fire outlet hole 7 can better improve the combustion effect of the flame. Between two adjacent arc-shaped concave surfaces 3 on the cover body 1 is an arc-shaped convex surface 16, and the arc-shaped convex surface 16 can supply secondary air to improve the combustion effect.

See Fig. 2, Fig. 3, Fig. 4 again, a kind of burner that cooperates described flower-shaped big fire cover, comprises burner head 10, has described flower-shaped big fire cover 12 and small fire cover 13 on burner head 10, on burner head 10 The side also has a secondary air supply hole 15 . Described small fire cover 13 is provided with upper fire discharge hole 17 and lower fire discharge hole 18, and the inclination d of upper fire discharge hole 17 with respect to horizontal plane, 45 °≤d≤55 °, preferably d is 50 °; The inclination c of the hole 18 relative to the horizontal plane is 25°≤c≤30°, preferably c is 28°. The setting of the angles of the upper row of fire holes 17 and the lower row of fire holes 18 can achieve the best flame combustion effect.

Referring to Fig. 4 again, the burner head 10 has a positioning groove 19, and the bottom of the flower-shaped fire cover 12 has a positioning pin 20, and the positioning pin 20 is arranged on the positioning groove 19. This design prevents the fire cover from moving, which is conducive to the supply of secondary air, and is misaligned with the pot support, which is conducive to the full combustion of the flame.

The utility model increases the total area of the fire outlet hole 7 of the inner ring through four downwardly concave arc-shaped concave surfaces, increases the combustion capacity of the fire outlet hole 7 of the inner ring, and increases the heat load of the burner at the same time , The experiment shows that the minimum rated heat load of the utility model is 4.5kW, and the energy efficiency meets the national first-class standard. The flower-shaped large fire cover 12 of the utility model has a diameter of 115mm. When the diameter of the large fire cover of the utility model is less than or equal to 120mm, the minimum rated thermal load of the utility model can reach 4.5kW according to the above settings, and the performance is higher than that of existing products.

Claims (10)

1. a household cooker flower shape big fire cover, comprise ringwise lid (1), it is characterized in that: described lid (1) lateral surface is at least interval with two exclusive ring fire fire output holes (2), described lid (1) end face is along the circumferential direction at least provided with two downward sunk arc-shaped concaves (3), arc-shaped concave (3) is divided into the first arcwall face (4), second arcwall face (5), described first arcwall face (4) is provided with multiple interior ring fire fire output hole (7), wherein between ring fire fire output hole (7) and a described outer ring fire fire output hole (2), there is fire tank (9) in one.

2. a kind of household cooker flower shape big fire cover according to claim 1, it is characterized in that: described lid (1) end face along the circumferential direction interval is evenly distributed with four downward sunk arc-shaped concaves (3), described first arcwall face (4) is with respect to the horizontal plane a angle, 30 °≤a≤40 °; Described second arcwall face (5) is with respect to the horizontal plane β angle, 1 °≤β≤6 °; Described interior ring fire fire output hole (7) is with respect to the horizontal plane r angle, 30 °≤r≤50 °.

3. a kind of household cooker flower shape big fire cover according to claim 2, is characterized in that: described first arcwall face (4) is with respect to the horizontal plane in a angle, and a is 32 °; Described second arcwall face (5) is with respect to the horizontal plane in β angle, and β is 3 °; Described interior ring fire fire output hole (7) is with respect to the horizontal plane in r angle, and r is 45 °.

4. a kind of household cooker flower shape big fire cover according to claim 2, it is characterized in that: described lid (1) lateral surface uniform intervals is distributed with four exclusive ring fire fire holes (2), every exclusive ring fire fire hole (2) is corresponding with described arc-shaped concave (3) to be arranged; Described lid (1) lateral surface is θ angle relative to vertical plane, 25 °≤θ≤35 °; Described outer ring fire fire output hole (2) is with respect to the horizontal plane b angle, 25 °≤b≤35 °.

5. a kind of household cooker flower shape big fire cover according to claim 4, it is characterized in that: described lid (1) lateral surface is θ angle relative to vertical plane, θ is 30 °, and described outer ring fire fire output hole (2) is with respect to the horizontal plane in b angle, and b is 30 °.

6. a kind of household cooker flower shape big fire cover according to claim 1, is characterized in that: described lid (1) being positioned between two adjacent arc-shaped concaves (3) is arc convex (16).

7. one kind coordinates the burner of described colored shape big fire cover, it is characterized in that: comprise burner (10), burner (10) has described colored shape big fire cover (12) and little fire cover (13), in burner (10) side, also there is Means of Secondary Air Supplement hole (15).

8. a kind of burner coordinating described colored shape big fire cover according to claim 7, it is characterized in that: described little fire cover (13) row's of being provided with fire hole (17) and lower row's fire hole (18), upper row's fire hole (17) inclination angle d with respect to the horizontal plane, 45 °≤d≤55 °; Lower row's fire hole (18) inclination angle c with respect to the horizontal plane, 25 °≤c≤30 °.

9. a kind of burner coordinating described colored shape big fire cover according to claim 8, is characterized in that: described upper row's fire hole (17) inclination angle d with respect to the horizontal plane, and d is 50 °; Lower row's fire hole (18) inclination angle c with respect to the horizontal plane, c is 28 °.

10. a kind of burner coordinating described colored shape big fire cover according to claim 7, it is characterized in that: described burner (10) has a locating slot (19), described colored shape big fire cover (12) bottom has an alignment pin (20), and described alignment pin (20) is configured on locating slot (19).