Internal spraying impinging burner

Abstract

The utility model provides an internal spraying impinging burner which comprises a hollow shell with a U-shaped overall section, internal fire spraying holes are formed in the inner wall of the hollow shell, the center of the hollow shell is concave inwards to form a turn-back radiator, and an air inlet is formed in the hollow shell in a communicated mode. The flames sprayed inwards in the horizontal direction of the inner fire spraying holes form vertically upward flames after being impacted by the outer wall of the turn-back radiator, mixed gas or air passes through the interior of the collision column and brings back heat at the same time, and the problem that the service life is too short due to the fact that the temperature of the turn-back radiator is too high can be solved. And by arranging the turn-back radiator, fuel gas combustion can be intensified through impact combustion, the flame temperature is higher, and heat exchange is more sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to an internal spray impact burner. Background Art

[0002] There is a burner head with a fire stop ring and an external flame-spraying hole assembly, such as the technical solution disclosed in the Chinese utility model patent with authorization announcement number CN212057278U, in which the fire stop ring (the shell in the patent document) is located at the external flame-spraying hole assembly or the periphery of the external flame-spraying hole assembly, and the horizontally externally sprayed flame hits the fire stop ring to form a vertically upward flame.

[0003] In the prior art, because the internal spray burner head is directly sprayed by high-temperature flames, especially after continuous long-term operation such as stewing pots, the temperature is even higher, resulting in a short service life. Even if high-temperature resistant 310s materials are used, it is difficult to meet the two-year warranty requirement. Utility Model Content

[0004] The purpose of the utility model is to improve and innovate the shortcomings and problems existing in the background technology and to provide an internal injection impact burner.

[0005] The utility model provides an internal spray impact burner, comprising a hollow shell with an overall U-shaped cross section, an inner flame spray hole is arranged on the inner wall of the hollow shell, the center of the hollow shell is inwardly concave to form a return heat sink, and an air inlet is arranged in the interior of the hollow shell.

[0006] Preferably, the return heat sink comprises a collision column formed by an inward concave center of the hollow shell, the interior of the collision column is connected to the interior of the hollow shell, and the outer wall of the collision column forms a flame collision portion.

[0007] Preferably, the air outlet end of the air inlet leads to the interior of the fold-back heat sink.

[0008] Preferably, the mixed gas enters from the air inlet, is mixed inside the return radiator, enters the hollow shell, is sprayed in through the inner flame hole, and collides with the outer wall of the return radiator again. The flame sprayed horizontally from the inner flame hole is impacted by the flame impact part to form a vertically upward flame.

[0009] Preferably, a sandwich folded body is provided inside the hollow shell.

[0010] Preferably, the mixed gas enters from the air inlet, is mixed inside the return radiator, enters the hollow shell, is mixed again through the interlayer return body, is sprayed in through the inner flame hole, collides with the outer wall of the return radiator again, and the flame sprayed horizontally from the inner flame hole is impacted by the flame impact part to form a vertically upward flame.

[0011] Preferably, the collision column is arranged at a certain angle to the horizontal plane.

[0012] Preferably, it also includes a cooling air intake pipe connected to the interior of the folding radiator.

[0013] Preferably, the hollow shell also includes at least one annular seam plate, at least one orifice plate, an air inlet arranged at the bottom and an air outlet arranged at the top; the annular seam plate and the orifice plate are staggered and parallel from bottom to top, the edge of the annular seam plate and the inner wall of the hollow shell form an annular gap, the holes on the orifice plate and the annular gap are staggered, the air inlet is arranged at the bottom of the hollow shell or the lower part of the side of the hollow shell, the interior of the hollow shell is separated from the interior of the return radiator, and the interior of the return radiator is connected to a cooling air inlet pipe.

[0014] Preferably, a high temperature resistant coating is provided on the outer surface of the collision column.

[0015] Advantages and beneficial effects of the utility model:

[0016] The utility model provides an internal spray impact burner, in which the flame sprayed from the internal spray hole in the horizontal direction impacts the outer wall of the return radiator to form a vertical upward flame, and the mixed gas passes through the inside of the collision column and takes the heat back at the same time, which can prevent the temperature of the return radiator from being too high and the service life from being too short. By setting the return radiator, the impact combustion can intensify the combustion of the gas, the flame temperature is higher, and the heat exchange is more sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the flow structure of the mixed gas in one embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the second embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the flow structure of the mixed gas of the second embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the flow structure of the mixed gas of the third embodiment of the utility model;

[0022] Among them, 1. hollow shell; 2. internal flame hole; 3. return radiator; 4. collision column; 5. flame impact part; 6. sandwich return body; 7. air inlet; 8. cooling air inlet pipe; 9. annular seam plate; 10. orifice plate. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is considered to be "set on" another element, it may be directly set or connected to another element or there may be a centered element at the same time. The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification are only for describing specific implementation purposes and are not intended to limit the present invention.

[0026] refer to Figure 1-Figure 5 The utility model provides an internal spray impact burner, comprising a hollow shell 1 with an overall U-shaped cross section, an inner flame hole 2 is arranged on the inner wall of the hollow shell 1, the center of the hollow shell 1 is concave inward to form a return radiator 3, and an air inlet 7 is arranged in the hollow shell 1. The air inlet 7 is arranged toward the inside of the return radiator 3, and the mixed gas enters the inside of the return radiator 3 formed by the concave through the air inlet 7 and brings back the heat at the same time, which can prevent the temperature of the return radiator 3 from being too high and the problem of too short service life. By setting the return radiator 3, the impact combustion can intensify the combustion of the gas, the flame temperature is higher, and the heat exchange is more sufficient.

[0027] In one embodiment, the return heat sink 3 includes a collision column 4 formed by the center of the hollow shell 1 being concave inward, the interior of the collision column 4 is connected to the interior of the hollow shell 1, and the outer wall of the collision column 4 forms a flame impact portion 5. The flame sprayed from the inner flame-spraying hole 2 in the horizontal direction is impacted by the flame impact portion 5 to form a vertically upward flame.

[0028] In one embodiment, the air outlet end of the air inlet 7 leads to the interior of the folding heat sink 3 .

[0029] In one embodiment, reference Figure 1 and Figure 2 The mixed gas enters from the air inlet 7, is mixed inside the return radiator 3, enters the hollow shell 1, is sprayed through the inner flame-spraying hole 2, and collides with the outer wall of the return radiator 3 again. The flame sprayed from the inner flame-spraying hole 2 in the horizontal direction is impacted by the flame impact part 5 to form a vertical upward flame. The mixed gas passes through the inside of the return radiator 3 and takes the heat back at the same time, which can prevent the temperature of the return radiator 3 from being too high and the service life from being too short.

[0030] In one embodiment, reference Figure 3 and Figure 4 The interior of the hollow shell 1 is provided with an interlayer folding body 6 , and the interlayer folding body 6 includes an interlayer cavity extending from the inner wall of the hollow shell 1 , and the interlayer cavity is connected with the interior of the hollow shell 1 .

[0031] In one embodiment, reference Figure 3 and Figure 4 The mixed gas enters from the air inlet 7, is mixed inside the return radiator 3, and enters the hollow shell 1, and is mixed again through the interlayer return body 6 with high mixing efficiency. It is sprayed in through the inner flame hole 2 and collides with the outer wall of the return radiator 3 again. The flame sprayed horizontally from the inner flame hole 2 is impacted by the flame impact part 5 to form a vertically upward flame.

[0032] In one embodiment, the collision column 4 is arranged at a certain angle to the horizontal plane, and the collision improves the thermal efficiency.

[0033] In one embodiment, a cooling air intake pipe 8 is further provided to communicate with the interior of the folding radiator 3. The cooling air enters the interior of the folding radiator from the cooling air intake pipe 8 to dissipate heat inside the folding radiator 3. The mixed air is mixed inside the folding radiator 3, which can prevent the temperature of the folding radiator 3 from being too high and causing the problem of a short service life.

[0034] In one embodiment, the hollow shell 1 also includes at least one annular plate 9, at least one orifice plate 10, an air inlet at the bottom, and an air outlet at the top; the annular plate 9 and the orifice plate 10 are staggered and parallel from bottom to top, the edge of the annular plate 9 forms an annular gap with the inner wall of the hollow shell, the holes on the orifice plate 10 are staggered and distributed with the annular gap, the air inlet is arranged at the bottom of the hollow shell or the lower part of the side of the hollow shell, the interior of the hollow shell 1 is separated from the interior of the return radiator 3 to prevent the internal temperature of the return radiator from being too high and the gas burning inside the return radiator. The interior of the return radiator 3 is connected to a cooling air intake pipe 8, and the cooling air enters the interior of the return radiator to bring back the heat. The mixed gas is fully mixed in the hollow shell, and the combustion efficiency is high. The outlet end of the cooling air intake pipe 8 is arranged inside the return radiator 3.

[0035] In one embodiment, a high temperature resistant coating is provided on the outer surface of the collision column 4 to further improve the service life of the collision column.

[0036] Advantages and beneficial effects of the utility model:

[0037] The utility model provides an internal spray impact burner, wherein the flame sprayed from the internal spray hole 2 in the horizontal direction impacts the outer wall of the return radiator 3 to form a vertical upward flame, and the mixed gas passes through the inside of the collision column 4 and takes the heat back at the same time, which can prevent the temperature of the return radiator 3 from being too high and the service life from being too short. By setting the return radiator 3, the impact combustion can intensify the combustion of the gas, the flame temperature is higher, and the heat exchange is more sufficient.

[0038] The embodiments described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims

1. An internal injection impact burner, characterized in that: The invention comprises a hollow shell (1) with an overall U-shaped cross section, wherein the inner wall of the hollow shell (1) is provided with an inner flame-spraying hole (2), the center of the hollow shell (1) is inwardly concave to form a folded heat sink (3), and the interior of the hollow shell (1) is connected to an air inlet (7).

2. The internal injection impact burner according to claim 1 is characterized in that: The return heat sink (3) comprises a collision column (4) formed by the center of the hollow shell (1) being concave inward, the interior of the collision column (4) being connected to the interior of the hollow shell (1), and the outer wall of the collision column (4) forming a flame collision portion (5).

3. The internal injection impact burner according to claim 1 is characterized in that: The air outlet end of the air inlet (7) leads to the interior of the folding heat sink (3).

4. The internal injection impact burner according to claim 1 is characterized in that: The mixed gas enters from the air inlet (7) through the inside of the return radiator (3), is mixed and enters the hollow shell (1), is sprayed in through the inner flame-spraying hole (2), and collides with the outer wall of the return radiator (3) again. The flame sprayed inward in the horizontal direction from the inner flame-spraying hole (2) is impacted by the flame impact part (5) to form a vertically upward flame.

5. The internal injection impact burner according to claim 1 is characterized in that: An interlayer folded body (6) is arranged inside the hollow shell (1).

6. The internal injection impact burner according to claim 5, characterized in that: The mixed gas enters from the air inlet (7) through the inner part of the return radiator (3) and is mixed into the hollow shell (1), and is mixed again through the interlayer return body (6), and is sprayed in through the inner flame-spraying hole (2), and collides with the outer wall of the return radiator (3) again. The flame sprayed in the inner flame-spraying hole (2) in the horizontal direction is impacted by the flame impact part (5) to form a vertically upward flame.

7. The internal injection impact burner according to claim 2 is characterized in that: The collision column (4) is arranged at a certain angle to the horizontal plane.

8. The internal injection impact burner according to claim 1, characterized in that: It also includes a cooling air intake pipe which is arranged in communication with the interior of the folding radiator (3).

9. The internal injection impact burner according to claim 1, characterized in that: The hollow shell (1) further comprises at least one annular plate, at least one orifice plate, an air inlet arranged at the bottom, and an air outlet arranged at the top; the annular plate and the orifice plate are arranged in parallel and staggered from bottom to top, the edge of the annular plate forms an annular gap with the inner wall of the hollow shell, the holes on the orifice plate are staggered and arranged with the annular gap, the air inlet is arranged at the bottom of the hollow shell or at the lower part of the side of the hollow shell, the interior of the hollow shell is separated from the interior of the folding radiator, and the interior of the folding radiator is connected to a cooling air inlet pipe.

10. The internal injection impingement burner according to claim 2, characterized in that: The outer surface of the collision column (4) is provided with a high temperature resistant coating.

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