Burner fire cover

Abstract

The utility model relates to a burner fire cover which is characterized by comprising a fire cover body and a top cover covering the top of the fire cover body. An annular groove is formed in the upper portion of the side peripheral wall of the fire cover body and composed of an upper connecting face, a connecting face and a lower connecting face, the top of the upper connecting face is connected with the top cover, the bottom of the upper connecting face is connected with the top of the connecting face, and the bottom of the connecting face is connected with the top of the lower connecting face. The bottom of the lower connecting face is connected with the side peripheral wall of the fire cover body, and a plurality of upper fire outlet holes distributed in the circumferential direction are formed in the connecting face. A plurality of lower fire outlet holes distributed in the circumferential direction are formed in the lower convex arc face, and the lower fire outlet holes and the upper fire outlet holes are distributed at intervals in the vertical direction. The gas burner has the advantages of being suitable for gas with different pressures, not prone to flame separation, safe, reliable and high in heat efficiency.

Description

Technical Field

[0001] The utility model relates to a burner fire cover. Background Art

[0002] The prior art patent number is as follows: 202223154481.0. The technical solution includes an upper convex arc surface, a concave arc surface and a lower connecting surface. A fire hole is provided on the lower connecting surface. The defect of the above technical solution is: due to the inconsistent gas pressure of gas in my country, flame separation is prone to occur in some places with low gas pressure, which will first lead to incomplete combustion and pollute the environment. Secondly, the thermal efficiency is low, and part of the gas that should be burned will escape in vain. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a burner fire cover which can be suitable for gases of different pressures, is not easy to separate from the flame, is safe and reliable, and has high thermal efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented as follows: it is a burner fire cover, characterized in that it includes a fire cover body and a top cover covering the top of the fire cover body; an annular groove is opened on the upper part of the side circumferential wall of the fire cover body, and the annular groove is composed of an upper connecting surface, a connecting surface and a lower connecting surface, the top of the upper connecting surface is connected to the top cover, the bottom of the upper connecting surface is connected to the top of the connecting surface, the bottom of the connecting surface is connected to the top of the lower connecting surface, the bottom of the lower connecting surface is connected to the side circumferential wall of the fire cover body, and a plurality of circumferentially distributed upper fire holes are provided on the connecting surface; a plurality of circumferentially distributed lower fire holes are provided on the lower connecting surface, and the lower fire holes are spaced apart from the upper fire holes.

[0005] In this technical solution, the connecting surface is inclined outward from top to bottom.

[0006] In the technical solution, the upper connecting surface protrudes outward to form an arc shape.

[0007] In the technical solution, the lower connecting surface protrudes outward to form an arc shape.

[0008] In the technical solution, the diameter of the upper fire outlet hole is 1.7 cm to 2.4 cm.

[0009] In the technical solution, the diameter of the lower fire outlet hole is 1.3 cm to 1.6 cm.

[0010] In the technical solution, the upward inclination angle of the upper fire outlet is c, and the range of c is 15° to 35°. The upward inclination angle of the upper fire outlet is f, and the range of f is 35° to 55°.

[0011] In the technical solution, the vertical distance between the upper fire outlet hole and the lower fire outlet hole is d, and the range of d is 2.5mm-7mm.

[0012] In the present technical solution, the inclination angle of the connecting surface is a, and the range of a is 15°-45°.

[0013] In this technical solution, the connecting surface is inwardly recessed and arc-shaped.

[0014] Compared with the prior art, the utility model has the advantages of being applicable to gases of different pressures, not prone to flame separation, being safe and reliable, and having high thermal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This utility model Figure 1 A magnified view of the local area A;

[0017] Figure 3 This utility model Figure 1 A top view of

[0018] Figure 4 yes Figure 3 AA section view;

[0019] Figure 5 yes Figure 4 A partial enlarged view of B;

[0020] Figure 6 It is a three-dimensional diagram of the second embodiment of the utility model;

[0021] Figure 7 This utility model Figure 6 A partial enlarged view of C;

[0022] Figure 8 This utility model is Figure 6 A top view of

[0023] Fig. 9 yes Figure 8 Top view after rotating at a certain angle;

[0024] Fig.10 yes Figure 8 BB cross-sectional view;

[0025] Fig.11 yes Fig. 9 CC section view;

[0026] Fig.12 yes Fig.10 A local D enlarged view;

[0027] Fig.13 yes Fig.11 A magnified view of the local E. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various implementation methods of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the description of the present invention, the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. Example

[0030] like Figures 1 to 13 As shown, it is a burner fire cover, including a fire cover body 1 and a top cover 2 covering the top of the fire cover body 1; an annular groove 3 is opened on the upper part of the side circumferential wall of the fire cover body 1, and the annular groove 3 is composed of an upper connecting surface 31, a connecting surface 32 and a lower connecting surface 33, the top of the upper connecting surface 31 is connected to the top cover 2, the bottom of the upper connecting surface 31 is connected to the top of the connecting surface 32, the bottom of the connecting surface 32 is connected to the top of the lower connecting surface 33, and the bottom of the lower connecting surface 33 is connected to the side circumferential wall of the fire cover body 1, and a plurality of circumferentially distributed upper fire holes 4 are provided on the connecting surface 32; a plurality of circumferentially distributed lower fire holes 5 are provided on the lower connecting surface, and the lower fire holes 5 are spaced apart from the upper fire holes 4.

[0031] The lower fire outlet hole 5 and the upper fire outlet hole 4 cooperate with each other, can be suitable for gases of different pressures, are not easy to separate from the flame, are safe and reliable, and have high thermal efficiency.

[0032] In this embodiment, the connecting surface 32 is inclined outward from top to bottom. The connecting surface 32 is inclined outward, and the fire cover is continuously reduced from bottom to top, so that the gas is convenient to be ejected from the lower fire outlet 5 and the upper fire outlet 4.

[0033] In this embodiment, the upper connecting surface 31 protrudes outward to form an arc shape to facilitate gas flow guidance.

[0034] In this embodiment, the lower connecting surface 33 protrudes outward to form an arc shape to facilitate gas flow guidance.

[0035] In this embodiment, the diameter of the upper fire outlet hole 4 is 1.7 cm to 2.4 cm. The diameter of the upper fire outlet hole 4 can be 1.7 cm, 1.8 cm, 1.9 cm, 2.0 cm, 2.1 cm, 2.2 cm, 2.3 cm and 2.4 cm, etc., ranging from 1.7 cm to 2.4 cm.

[0036] In this embodiment, the diameter of the lower fire outlet hole 5 is 1.3 cm to 1.6 cm. The diameter of the lower fire outlet hole 5 can be 1.3 cm, 1.4 cm, 1.5 cm, 1.6 cm, etc., ranging from 1.3 cm to 1.6 cm.

[0037] In this embodiment, the upper fire outlet 4 is inclined upward at an angle c, and the range of c is 15° to 35°. The c can be 15°, 17°, 19°, 21°, 23°, 25°, 27°, 29°, 31° and 35°.

[0038] In this embodiment, the upper fire outlet 4 is inclined upward at an angle f, and the range of f is 35° to 55°. The angle b can be 35°, 37°, 40°, 43°, 46°, 50° and 55°, ranging from 35° to 55°.

[0039] In this embodiment, the vertical distance between the upper ignition hole 4 and the lower ignition hole 5 is d, and the range of d is 2.5mm-7mm. d can be 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm and 7mm, ranging from 2.5mm to 7mm.

[0040] In this embodiment, the inclination angle of the connecting surface 32 is a, and the range of a is 15°-45°. The angle c can be 15°, 17°, 19°, 21°, 23°, 25°, 27°, 29°, 31°, 35°, 40° and 45°, ranging from 15° to 45°. Example

[0041] like Figures 1 to 13As shown, it is a burner fire cover, including a fire cover body 1 and a top cover 2 covering the top of the fire cover body 1; an annular groove 3 is opened on the upper part of the side circumferential wall of the fire cover body 1, and the annular groove 3 is composed of an upper connecting surface 31, a connecting surface 32 and a lower connecting surface 33, the top of the upper connecting surface 31 is connected to the top cover 2, the bottom of the upper connecting surface 31 is connected to the top of the connecting surface 32, the bottom of the connecting surface 32 is connected to the top of the lower connecting surface 33, and the bottom of the lower connecting surface 33 is connected to the side circumferential wall of the fire cover body 1, and a plurality of circumferentially distributed upper fire holes 4 are provided on the connecting surface 32; a plurality of circumferentially distributed lower fire holes 5 are provided on the lower connecting surface, and the lower fire holes 5 are spaced apart from the upper fire holes 4.

[0042] The lower fire outlet hole 5 and the upper fire outlet hole 4 cooperate with each other, can be suitable for gases of different pressures, are not easy to separate from the flame, are safe and reliable, and have high thermal efficiency.

[0043] In this embodiment, the upper connecting surface 31 protrudes outward to form an arc shape to facilitate gas flow guidance.

[0044] In this embodiment, the lower connecting surface 33 protrudes outward to form an arc shape to facilitate gas flow guidance.

[0045] In this embodiment, the diameter of the upper fire outlet hole 4 is 1.7 cm to 2.4 cm. The diameter of the upper fire outlet hole 4 can be 1.7 cm, 1.8 cm, 1.9 cm, 2.0 cm, 2.1 cm, 2.2 cm, 2.3 cm and 2.4 cm, etc., ranging from 1.7 cm to 2.4 cm.

[0046] In this embodiment, the diameter of the lower fire outlet hole 5 is 1.3 cm to 1.6 cm. The diameter of the lower fire outlet hole 5 can be 1.3 cm, 1.4 cm, 1.5 cm, 1.6 cm, etc., ranging from 1.3 cm to 1.6 cm.

[0047] In this embodiment, the upper fire outlet 4 is inclined upward at an angle c, and the range of c is 15° to 35°. The c can be 15°, 17°, 19°, 21°, 23°, 25°, 27°, 29°, 31° and 35°.

[0048] In this embodiment, the upper fire outlet 4 is inclined upward at an angle f, and the range of f is 35° to 55°. The angle b can be 35°, 37°, 40°, 43°, 46°, 50° and 55°, ranging from 35° to 55°.

[0049] In this embodiment, the vertical distance between the upper ignition hole 4 and the lower ignition hole 5 is d, and the range of d is 2.5mm-7mm. d can be 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm and 7mm, ranging from 2.5mm to 7mm.

[0050] In this embodiment, the connecting surface 32 is concave inwards and has an arc shape.

[0051] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For ordinary technicians in this field, various changes, modifications, substitutions and deformations of these embodiments without departing from the principle and purpose of the present invention still fall within the scope of protection of the present invention.

Claims

1. A burner fire cover, characterized in that The fire cover comprises a fire cover body (1) and a top cover (2) covering the top of the fire cover body (1); an annular groove (3) is provided on the upper part of the side peripheral wall of the fire cover body (1); the annular groove (3) is composed of an upper connecting surface (31), a connecting surface (32) and a lower connecting surface (33); the top of the upper connecting surface (31) is connected to the top cover (2); the bottom of the upper connecting surface (31) is connected to the top of the connecting surface (32); the bottom of the connecting surface (32) is connected to the top of the lower connecting surface (33); the bottom of the lower connecting surface (33) is connected to the side peripheral wall of the fire cover body (1); a plurality of circumferentially distributed upper fire outlet holes (4) are provided on the connecting surface (32); a plurality of circumferentially distributed lower fire outlet holes (5) are provided on the lower connecting surface; the lower fire outlet holes (5) are spaced apart from the upper fire outlet holes (4) in the upper and lower directions.

2. The burner cap according to claim 1, characterized in that The connecting surface (32) is inclined outward from top to bottom.

3. The burner cap according to claim 1, characterized in that The upper connecting surface (31) protrudes outwards to form an arc shape.

4. The burner cap according to claim 1, characterized in that The lower connecting surface (33) protrudes outwards to form an arc shape.

5. The burner cap according to claim 1, characterized in that The diameter of the upper fire outlet hole (4) is 1.7 cm to 2.4 cm.

6. The burner cap according to claim 1, characterized in that The diameter of the lower fire outlet hole (5) is 1.3 cm to 1.6 cm.

7. The burner cap according to claim 1, characterized in that The upwardly inclined angle of the upper fire outlet hole (4) is c, and the range of c is 15° to 35°. The upwardly inclined angle of the upper fire outlet hole (4) is f, and the range of f is 35° to 55°.

8. The burner cap according to claim 1, characterized in that The vertical distance between the upper fire outlet hole (4) and the lower fire outlet hole (5) is d, and the range of d is 2.5 mm-7 mm.

9. The burner cap according to claim 2, characterized in that The inclination angle of the connecting surface (32) is a, and the range of a is 15°-45°.

10. The burner cap according to claim 1, characterized in that The connecting surface (32) is concave inwards and has an arc shape.

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