Burner fire cover

Abstract

The utility model relates to a burner fire cover which is characterized by comprising an inner ring wall, an upper cover, an inner ring surface, an outer ring surface and an outer ring wall, the inner ring wall extends upwards, the upper end of the inner ring wall is connected with the inner end of the upper cover, the upper cover extends outwards, the outer end of the upper cover is connected with the inner end of the inner ring face, the inner ring face extends outwards and downwards, the outer end of the inner ring face is connected with the inner end of the outer ring face, the outer ring face extends outwards, and the outer end of the outer ring face is connected with the upper end face of the outer ring wall. The outer ring wall extends downwards; the inner ring air outlet holes are formed in the inner ring face and incline upwards, air inlets of the inner ring air outlet holes are communicated with the annular fire groove, and air outlets of the inner ring air outlet holes are communicated with the outside; a plurality of bosses and a plurality of outer ring air outlet holes; the boss is arranged on the outer ring face, and the outer ring air outlet hole is formed in the boss and inclines upwards. The burner has the advantages of safety and reliability in use, no flame mixing phenomenon, high burning efficiency and uniformity in burning.

Description

TECHNICAL FIELD

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

[0002] At present, the fire cover includes a fire cover body, an upper ring gas outlet hole and a lower ring gas outlet hole are arranged on the fire cover body, the upper ring gas outlet hole is located above the lower ring gas outlet hole, so that there are two layers of fire when in use; the above structure has the following problems: the upper ring gas outlet hole and the lower ring gas outlet hole are close, causing the mixed flame phenomenon, low combustion efficiency, uneven combustion and easy backfire. SUMMARY

[0003] The utility model discloses a burner fire cover which overcomes the defects of the prior art, is safe and reliable to use, does not have the mixed flame phenomenon, has high combustion efficiency and uniform combustion.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a burner fire cover, which is characterized by an inner ring wall, an upper cover, an inner ring surface, an outer ring surface and an outer ring wall; the inner ring wall extends upward, the upper end of the inner ring wall is connected with the inner end of the upper cover, the upper cover extends outward, the outer end of the upper cover is connected with the inner end of the inner ring surface, the inner ring surface extends outward and downward, the outer end of the inner ring surface is connected with the inner end of the outer ring surface, the outer ring surface extends outward, the outer end of the outer ring surface is connected with the upper end surface of the outer ring wall, and the outer ring wall extends downward; the inner ring wall, the upper cover, the inner ring surface, the outer ring surface and the outer ring wall jointly form an annular fire groove matched with a furnace head.

[0005] A plurality of inner ring gas outlet holes are arranged on the inner ring surface and inclined upward, the gas inlet of the inner ring gas outlet hole is communicated with the annular fire groove, and the gas outlet of the inner ring gas outlet hole is communicated with the outside.

[0006] A plurality of bosses and a plurality of outer ring gas outlet holes are arranged; the boss is arranged on the outer ring surface and extends upward, the outer ring gas outlet hole is arranged on the boss and inclined upward, the gas inlet of the outer ring gas outlet hole is communicated with the annular fire groove, and the gas outlet of the outer ring gas outlet hole is communicated with the outside.

[0007] In the technical scheme, the upper cover includes an upper ring surface and a guide inclined surface, the lower end of the guide inclined surface is connected with the upper end of the inner ring wall, the guide inclined surface is inclined upward and outward, the inner end of the upper ring surface is connected with the upper end of the guide inclined surface, the upper ring surface extends horizontally outward, and the outer end of the upper ring surface is connected with the inner end of the inner ring surface.

[0008] In the technical scheme, the side of the boss close to the inner ring gas outlet hole is provided with a guide surface inclined outward and upward.

[0009] In the technical scheme, the inner ring gas outlet holes and the outer ring gas outlet holes are distributed at intervals.

[0010] In the technical solution, the inclination angle of the guide slope is a, and the range of a is 10° to 40°.

[0011] In the technical solution, the inclination angle of the inner ring air outlet hole is b, and the range of b is 40° to 65°.

[0012] In the technical solution, the inclination angle of the outer ring air outlet hole is c, and the range of c is 30° to 60°.

[0013] Compared with the prior art, the utility model has the advantages of safe and reliable use, no mixed flame phenomenon, high combustion efficiency and uniform combustion. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective view of the utility model;

[0015] Figure 2 is Figure 1 is a perspective view of the utility model from below;

[0016] Figure 3 is Figure 1 is a plan view of the utility model;

[0017] Figure 4 is Figure 3 is an A-A sectional view of the utility model;

[0018] Figure 5 is Figure 4 is a partial A enlarged view of the utility model;

[0019] Figure 6 is Figure 4 is a partial B enlarged view of the utility model. DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model will be further described below in combination with the drawings. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as there is no conflict.

[0021] In the description of the utility model, the terms "upper", "lower" and "outer side" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the utility model and do not require the utility model to be constructed and operated in a particular orientation, so it cannot be understood as a limitation of the utility model.

[0022] In the utility model, unless another definite provision and limitation, the term "mounts" and "is equipped with" and so on term should do broad sense understanding, for example, can be fixed connection, also can be dismounting connection, or is integrated;Can be mechanical connection, can be direct connection, also can pass through intermediate medium indirectly connects, can make two element inside the intercommunication or two element's mutual action relation. For ordinary skilled person in the art, the above-mentioned term can be understood according to specific circumstances the specific meaning of the utility model in.

[0023] As Figures 1 to 6 Shown, it is a burner fire cover, it is characterized by including

[0024] Inner ring wall 1, upper cover 2, inner ring surface 3, outer ring surface 5 and outer ring wall 8;The inner ring wall 1 extends upwards, and the upper end of the inner ring wall 1 is connected with the inner end portion of the upper cover 2, the upper cover 2 extends outward, and the outer end portion of the upper cover 2 is connected with the inner end portion of the inner ring surface 3, the inner ring surface 3 extends outward and downward, and the outer end portion of the inner ring surface 3 is connected with the inner end portion of the outer ring surface 5, the outer ring surface 5 extends outward, and the outer end portion of the outer ring surface 5 is connected with the upper end surface of the outer ring wall 8, and the outer ring wall 8 extends downward;The inner ring wall 1, the upper cover 2, the inner ring surface 3, the outer ring surface 5 and the outer ring wall 8 jointly form an annular fire groove matched with a furnace head;It is safe and reliable to use, and the phenomenon of mixed flame does not occur, the combustion efficiency is high, and the combustion is uniform.

[0025] A plurality of inner ring gas outlet holes 4 are provided on the inner ring surface 3 and inclined upward, the gas inlet of the inner ring gas outlet hole 4 is communicated with the annular fire groove, and the gas outlet of the inner ring gas outlet hole 4 is communicated with the outside world;

[0026] A plurality of bosses 6 and a plurality of outer ring gas outlet holes 7 are provided on the outer ring surface 5, and the outer ring gas outlet hole 7 is provided on the boss 6 and inclined upward, the gas inlet of the outer ring gas outlet hole 7 is communicated with the annular fire groove, and the gas outlet of the outer ring gas outlet hole 7 is communicated with the outside world.

[0027] In use, the outer ring gas outlet hole 7 is arranged in the boss 6, so that the phenomenon that the outer ring gas outlet hole 7 is blocked by oil stains or other objects is prevented, and the outer ring gas outlet hole 7 and the inner ring gas outlet hole 4 are isolated by the boss 6, so that the mixed flame does not occur;

[0028] In the embodiment, the upper cover 2 includes an upper ring surface 21 and a guide slope 22, the lower end of the guide slope 22 is connected with the upper end of the inner ring wall 1, the guide slope 22 is inclined upward and outward, the inner end of the upper ring surface 21 is connected with the upper end of the guide slope 22, the upper ring surface 21 extends outward and horizontally, and the outer end of the upper ring surface 21 is connected with the inner end of the inner ring surface 3.

[0029] In use, the gas in the annular fire groove can be better diffused in the annular fire groove through the guide slope 22 and the upper ring surface 21, so that the combustion is uniform.

[0030] In the embodiment, the boss 6 is provided with an outwardly and upwardly inclined gas guiding surface 61 near one side of the inner ring gas outlet hole 4. The gas of the inner ring gas outlet hole 4 is mixed with air for better combustion, and the combustion efficiency is higher.

[0031] In the embodiment, the inner ring gas outlet hole 4 and the outer ring gas outlet hole 7 are distributed at intervals. The inner ring gas outlet hole 4 and the outer ring gas outlet hole 7 are mixed with air for better combustion.

[0032] In the embodiment, the inclination angle of the guide slope 22 is a, and the range of a is 10° to 40°. The a can be 10°, 15°, 20°, 25°, 30°, 35° and 40°, etc., which is determined according to the actual use.

[0033] In the embodiment, the inclination angle of the inner ring gas outlet hole 4 is b, and the range of b is 40° to 65°. The b can be 40°, 43°, 46°, 50°, 55°, 60° and 65°, etc., which is determined according to the actual use.

[0034] In the embodiment, the inclination angle of the outer ring gas outlet hole 7 is c, and the range of c is 30° to 60°. The c can be 30°, 33°, 36°, 39°, 42°, 45°, 48°, 51°, 54°, 57° and 60°, etc., which is determined according to the actual use.

[0035] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For ordinary skilled in the art, various changes, modifications, replacements and deformations of these embodiments without departing from the principles and purposes of the utility model still fall within the protection scope of the utility model.

Claims

1. A burner cap, characterized in that Comprising The inner ring wall (1) extends upward, the upper end of the inner ring wall (1) is connected with the inner end of the upper cover (2), the upper cover (2) extends outward, the outer end of the upper cover (2) is connected with the inner end of the inner ring surface (3), the inner ring surface (3) extends outward and downward, the outer end of the inner ring surface (3) is connected with the inner end of the outer ring surface (5), the outer ring surface (5) extends outward, the outer end of the outer ring surface (5) is connected with the upper end surface of the outer ring wall (8), and the outer ring wall (8) extends downward; the inner ring wall (1), the upper cover (2), the inner ring surface (3), the outer ring surface (5) and the outer ring wall (8) jointly form an annular fire trench matched with the furnace head; A plurality of inner ring gas outlets (4) are provided on the inner ring surface (3) and inclined upward, the gas inlet of the inner ring gas outlet (4) is communicated with the annular fire trench, and the gas outlet of the inner ring gas outlet (4) is communicated with the outside; A plurality of bosses (6) and a plurality of outer ring gas outlets (7) are provided on the outer ring surface (5) and inclined upward, the gas inlet of the outer ring gas outlet (7) is communicated with the annular fire trench, and the gas outlet of the outer ring gas outlet (7) is communicated with the outside.

2. The burner flame cap of claim 1, wherein The upper cover (2) comprises an upper ring surface (21) and a guide inclined surface (22), the lower end of the guide inclined surface (22) is connected with the upper end of the inner ring wall (1), the guide inclined surface (22) is inclined upward and outward, the inner end of the upper ring surface (21) is connected with the upper end of the guide inclined surface (22), the upper ring surface (21) extends outward and horizontally, and the outer end of the upper ring surface (21) is connected with the inner end of the inner ring surface (3).

3. The burner flame cap of claim 1, wherein The side of the boss (6) close to the inner ring gas outlet (4) is provided with a guide surface (61) inclined outward and upward.

4. The burner flame cap of claim 1, wherein The inner ring gas outlet (4) and the outer ring gas outlet (7) are distributed at intervals.

5. The burner flame cap of claim 2, wherein The inclination angle of the guide inclined surface (22) is a, and the range of a is 10° to 40°.

6. The burner flame cap of claim 1, wherein The inclination angle of the inner ring gas outlet (4) is b, and the range of b is 40° to 65°.

7. The burner flame cap of claim 1, wherein The inclination angle of the outer ring gas outlet (7) is c, and the range of c is 30° to 60°.

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