A wind and rain resistant burner

Abstract

The present invention provides a wind and rain resistant burner, comprising a gas supply pipeline, an internal combustion chamber nozzle, an internal combustion chamber, an external combustion chamber nozzle annular cavity, an external combustion chamber, a combustion chamber top plate and inner and outer flame connecting holes; wherein the gas supply pipeline is connected with the internal combustion chamber nozzle and the outer combustion chamber nozzle annular cavity, and is used for providing the gas required for the combustion of the inner flame and the outer flame; the internal combustion chamber nozzle extends into the internal combustion chamber from the bottom of the internal combustion chamber, and an inner flame is generated at the outlet of the internal combustion chamber nozzle and burns in the internal combustion chamber; the outer combustion chamber nozzle annular cavity is connected with the external combustion chamber, and is used for introducing gas into the outer combustion chamber, and the outer combustion chamber is located at the periphery of the internal combustion chamber to form an outer flame combustion zone; an inner and outer flame connecting hole is arranged between the internal combustion chamber and the outer combustion chamber, and is used for realizing the connection between the inner and outer flames when the burner is blown by transverse wind or lateral wind, so that the flame is not blown out, and an overall wind and rain resistant flame structure is formed; the combustion chamber top plate covers the upper part of the internal combustion chamber and the outer combustion chamber respectively, and is a perforated metal plate or a metal mesh to assist the burner in protecting against wind and rain.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal energy engineering and relates to a burner, in particular to a burner with wind and rain resistance capabilities for use in a handheld torch. Background Art

[0002] Handheld torches are widely used in major sports events and celebrations around the world. Most handheld torches use gaseous fuels, such as propane and butane. Due to the need for torch transmission, the torch burner is generally required to provide a stable flame that is not affected by the external environment, wind and rain. Patent USOO5902101A discloses the design details of the Atlanta 1996 Summer Olympic Games torch burner head, and the torch adopts a double flame method. Patent USOO6733282B2 discloses the fuel system and burner solution of the Salt Lake City 2002 Winter Olympic Games torch, which organizes a ring flame that fills the end of the torch through two internal and external combustion channels, and also plays a role in stabilizing combustion. Patents CN200720105416, CN200720140473, CN200720140474, CN200720172838, etc. disclose the technical details of the torch of the 2008 Beijing Summer Olympics, including gas phase pressure stabilizing device, gas flame stabilizer, removable normally closed valve, flame fuel bottle heating device and other parts. The burner is divided into two flames, inner and outer. The inner flame has sufficient air mixing to form a stable flame in the internal burner. The outer flame is ejected through the small holes on the annular pipe to form a diffusion flame, and the flame color is yellow. Patent WO2019107300A1 discloses the technical details of the wind and rain resistant structure and torch organization of the Tokyo 2020 Summer Olympics torch burner. The patent describes a main burner for forming a flame, the main function of which is to provide a flame stabilizing mechanism to prevent the flame from extinguishing in a windy and rainy environment. The 2022 Winter Olympics is approaching. Due to the influence of the winter environment, there is a high probability of encountering wind, rain (snow) and other conditions during the Olympics. It is necessary to develop a burner that is wind and rain resistant for use in handheld torches. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the inventors have conducted intensive research and provided a wind and rain resistant burner. By constructing a burner structure with dual combustion chambers that are internally connected and interact with the lateral wind, the flame can adapt to environments such as strong winds and heavy rains during the handheld torch delivery process and maintain stable combustion.

[0004] The technical solution provided by the present invention is as follows:

[0005] A wind and rain resistant burner comprises an independent internal combustion chamber and an external combustion chamber, wherein the internal combustion chamber forms an inner flame combustion zone, and the outer combustion chamber forms an outer flame combustion zone, and the internal combustion chamber and the outer combustion chamber are bidirectionally connected. When the burner is blown by lateral wind or side wind, the inner flame can enter the outer flame combustion zone, and the outer flame can enter the inner flame combustion zone, so that the inner and outer flames are connected to form an overall wind and rain resistant flame structure.

[0006] Furthermore, the outer combustion chamber is located outside the inner combustion chamber, and an inner-outer flame connecting hole is provided between the inner combustion chamber and the outer combustion chamber. The inner-outer flame connecting hole crosses the inner combustion chamber shell and the outer combustion chamber shell, or when there is a common shell between the inner combustion chamber and the outer combustion chamber, the inner-outer flame connecting hole crosses the common shell.

[0007] Furthermore, the burner also includes a gas supply pipeline, an internal combustion chamber nozzle and an external combustion chamber nozzle annulus; wherein the gas supply pipeline is connected to the internal combustion chamber nozzle and the external combustion chamber nozzle annulus, and is used to provide the gas required for the combustion of the inner flame and the outer flame; the internal combustion chamber nozzle extends into the internal combustion chamber from the bottom of the internal combustion chamber, and an inner flame is generated at the outlet of the internal combustion chamber nozzle and burns in the internal combustion chamber; the external combustion chamber nozzle annulus is connected to the external combustion chamber, and is used to introduce gas into the external combustion chamber.

[0008] Further, the outer combustion chamber nozzle annulus is a chamber structure surrounding the outer periphery of the inner combustion chamber; or, the outer combustion chamber nozzle annulus is a pipeline structure, and part of the pipeline enters the outer combustion chamber, and preferably, the part of the pipeline forms an air supply annular pipe in the outer combustion chamber.

[0009] Furthermore, when the outer combustion chamber nozzle ring cavity is a chamber structure surrounding the outer periphery of the inner combustion chamber, the outer combustion chamber nozzle ring cavity is located below the outer combustion chamber and forms an adjacent chamber with a common partition. The common partition is processed with an outer combustion chamber spray hole, and the outer combustion chamber spray holes are preferably distributed circumferentially on the common partition, and the outer combustion chamber nozzle ring cavity and the outer combustion chamber are supplied with gas through the outer combustion chamber spray holes. When the outer combustion chamber nozzle ring cavity is a chamber structure surrounding the outer periphery of the inner combustion chamber, the outer combustion chamber nozzle ring cavity can also be connected to the outer combustion chamber through multiple gas supply branches.

[0010] Furthermore, when the external combustion chamber nozzle ring cavity is a tubular structure, an external combustion chamber spray hole is processed on the gas supply pipeline in the external combustion chamber. Preferably, the external combustion chamber spray holes are distributed along the length of the gas supply pipeline, and the external combustion chamber nozzle ring cavity and the external combustion chamber implement gas supply through the external combustion chamber spray holes.

[0011] Furthermore, the spray hole of the outer combustion chamber has an inwardly inclined angle, which is 0 to 45 degrees with respect to the vertical direction.

[0012] Furthermore, the internal combustion chamber is processed with an internal combustion chamber air inlet hole, and preferably the internal combustion chamber air inlet hole is located at the bottom of the internal combustion chamber. The external combustion chamber is processed with an external combustion chamber air inlet hole, and preferably the external combustion chamber air inlet hole is located at the bottom or side of the external combustion chamber, and is distributed in a circumferential manner with multiple holes, and the external combustion chamber air inlet hole located at the bottom also serves as a rain leakage hole. Furthermore, the burner also includes a combustion chamber top plate, and the combustion chamber top plate covers the top of the internal combustion chamber and the external combustion chamber respectively, and is a perforated metal plate or a metal mesh to assist the burner in protecting against wind and rain. When the combustion chamber top plate is a metal mesh, the metal mesh forms an upper arch structure to gather the flame.

[0013] A wind and rain resistant burner provided by the present invention has the following beneficial effects:

[0014] The present invention provides a wind and rain resistant burner, which, by constructing a burner structure in which dual combustion chambers are internally connected and interact with lateral winds, can enable the flame to adapt to environments such as strong winds and heavy rains during the handheld torch transmission process and maintain stable combustion. It can withstand a maximum wind force of 100 km / h and a rain force of 100 mm / h. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a wind and rain resistant burner in a preferred embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the wind and rain resistance principle of the middle burner;

[0017] Figure 3 It is a structural schematic diagram of a wind and rain resistant burner in another preferred embodiment of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a wind and rain resistant burner in another preferred embodiment of the present invention;

[0019] Figure 5 It is a schematic structural diagram of a wind and rain resistant burner in another preferred embodiment of the present invention.

[0020] Description of Figure Numbers

[0021] 1-gas supply pipeline; 2-internal combustion chamber nozzle; 3-internal combustion chamber; 4-external combustion chamber nozzle annulus; 5-external combustion chamber; 6-combustion chamber top plate; 7-external combustion chamber spray hole; 8-external combustion chamber air inlet hole; 9-internal and external flame connecting hole. DETAILED DESCRIPTION

[0022] The following detailed description of the present invention will make the features and advantages of the present invention more clear and explicit.

[0023] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0024] The present invention provides a wind and rain resistant burner, such as Figures 1 to 5 As shown, it includes a gas supply pipeline 1, an internal combustion chamber nozzle 2, an internal combustion chamber 3, an external combustion chamber nozzle annular cavity 4, an external combustion chamber 5, a combustion chamber top plate 6 and an internal and external flame communication hole 9;

[0025] The inner combustion chamber nozzle 2 and the outer combustion chamber nozzle annular cavity 4 are connected to the gas supply pipeline 1. The end of the gas supply pipeline 1 is preferably a three-way joint connected to the inner combustion chamber nozzle 2 and the outer combustion chamber nozzle annular cavity 4. The lower gas inlet of the three-way joint is connected to the gas, which is divided by two upper gas outlets to the inner combustion chamber nozzle 2 and the outer combustion chamber nozzle annular cavity 4 for the combustion of the inner flame and the outer flame.

[0026] The internal combustion chamber nozzle 2 is connected to the internal combustion chamber 3 and extends from the bottom of the internal combustion chamber 3 into the internal combustion chamber 3. An internal combustion chamber nozzle 2 generates an internal flame at the outlet and burns in the internal combustion chamber 3. An internal combustion chamber air inlet hole is processed on the internal combustion chamber 3 (preferably at the bottom) to supply air for the internal flame combustion.

[0027] The outer combustion chamber nozzle annular cavity 4 is connected to the outer combustion chamber 5, and is used to introduce fuel gas into the outer combustion chamber 5. The outer combustion chamber 5 is located on the periphery of the inner combustion chamber 3 to form an outer flame combustion zone; an inner and outer flame connecting hole 9 is set between the two combustion chambers (preferably in an annular direction) to achieve the connection between the inner and outer flames when the burner is blown by transverse wind or lateral wind, so that the flame is not blown out, forming an overall wind-resistant and rain-resistant flame structure; preferably, the inner and outer flame connecting hole 9 crosses the inner combustion chamber shell and the outer combustion chamber shell, or has a hole between the inner combustion chamber 3 and the outer combustion chamber 5. When the common shell is used, the inner and outer flame connecting hole 9 crosses the common shell, and the position of the inner and outer flame connecting hole 9 is higher than the outer combustion chamber nozzle 7; the outer combustion chamber 5 is processed with an outer combustion chamber air inlet hole 8 to supply air for the outer flame combustion; preferably, the outer combustion chamber air inlet hole 8 is located at the bottom or side of the outer combustion chamber 5, and is distributed in a circumferential manner, and the outer combustion chamber air inlet hole 8 at the bottom also serves as a rain leakage hole; by adjusting the size of the outer combustion chamber air inlet hole 8, the air distribution volume of the outer flame can be adjusted to form a flame height between 200 and 300 mm;

[0028] The combustion chamber top plate 6 covers the top of the internal combustion chamber 3 and the external combustion chamber 5 respectively, and is a high-temperature resistant perforated metal plate or a high-temperature resistant metal mesh. The internal and external flames can heat and flush the combustion chamber top plate, assist the burner in wind and rain protection, and at the same time play the role of blunt body flame stabilization; if the combustion chamber top plate 6 is a metal plate, the diameter of the opening is 2 to 4 mm. If it is a metal mesh, the metal mesh aperture is required to be 1 to 2 mm, and no further holes are required.

[0029] In the present invention, Figure 1 In the exemplary burner structure, the outer combustion chamber nozzle ring cavity 4 surrounds the chamber structure outside the inner combustion chamber 3. Of course, Figure 4 In the exemplary burner structure, the outer combustion chamber nozzle ring cavity 4 may also be a pipeline structure, and part of the pipeline enters and extends into the outer combustion chamber 5. Preferably, the part of the pipeline forms an air supply ring pipe in the outer combustion chamber 5.

[0030] When the outer combustion chamber nozzle ring cavity 4 is a chamber structure surrounding the outer periphery of the internal combustion chamber 3, the outer combustion chamber nozzle ring cavity 4 is located below the outer combustion chamber 5 and forms an adjacent chamber with a common partition. The common partition is processed with an outer combustion chamber spray hole 7, and the outer combustion chamber spray holes 7 are preferably distributed circumferentially on the common partition, and the outer combustion chamber nozzle ring cavity 4 and the outer combustion chamber 5 implement gas supply through the outer combustion chamber spray holes 7. When the outer combustion chamber nozzle ring cavity 4 is a chamber structure surrounding the outer periphery of the internal combustion chamber 3, the outer combustion chamber nozzle ring cavity 4 can also be connected to the outer combustion chamber 5 through multiple gas supply branches.

[0031] When the external combustion chamber nozzle annulus 4 is a tubular structure, an external combustion chamber spray hole 7 is processed on the gas supply pipeline in the external combustion chamber 5. Preferably, the external combustion chamber spray hole 7 is distributed along the length direction of the gas supply pipeline, and the external combustion chamber nozzle annulus 4 and the external combustion chamber 5 implement gas supply through the external combustion chamber spray hole 7.

[0032] The number of the external combustion chamber spray holes 7 is determined according to the required air supply, for example, 12 to 20. The external combustion chamber spray holes 7 may have an inwardly inclined angle, and the angle with the vertical direction may be 0 to 45 degrees.

[0033] In the present invention, the shape, width and other factors of the flame are controlled by changing the position and shape of the openings on the combustion chamber top plate 6 . Figures 1-2 In the example burner structure of 5, the combustion chamber top plates above the internal combustion chamber 3 and the external combustion chamber 5 are both flat perforated metal plates; Figure 3 In the exemplary burner structure, the combustion chamber top plate 6 above the internal combustion chamber 3 is a flat metal mesh structure, and the combustion chamber top plate 6 above the external combustion chamber 5 is an upper arched metal mesh structure; Figure 4 In the exemplary burner structure, the combustion chamber top plate 6 above the internal combustion chamber 3 is a flat perforated metal plate, and the combustion chamber top plate 6 above the external combustion chamber 5 is an upper arched metal mesh structure. Of course, the combustion chamber top plates 6 above the internal combustion chamber 3 and the external combustion chamber 5 can also be other forms and combinations thereof.

[0034] The height of the external combustion chamber 5 is higher than that of the internal combustion chamber 3, and the coverage of the combustion chamber top plate 6 above the external combustion chamber 5 may include ( Figures 4-5 ) or does not include ( Figures 1 to 3 )The area above the internal combustion chamber 3.

[0035] The burner structure of the present invention, by constructing a burner structure in which the double combustion chambers are internally connected and interact with the lateral wind, can make the flame adapt to the environment of strong wind, heavy rain and the like during the handheld torch transmission process and maintain stable combustion. It can resist a maximum wind force of 100km / h and a rain force of 100mm / h.

[0036] The present invention has been described in detail above in conjunction with specific implementations and exemplary examples, but these descriptions cannot be understood as limiting the present invention. Those skilled in the art understand that, without departing from the spirit and scope of the present invention, a variety of equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its implementation methods, all of which fall within the scope of the present invention. The scope of protection of the present invention shall be subject to the attached claims.

[0037] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A wind and rain resistant burner, characterized in that: The invention comprises an independent internal combustion chamber (3) and an external combustion chamber (5), wherein the internal combustion chamber (3) forms an inner flame combustion zone, and the outer combustion chamber (5) forms an outer flame combustion zone. The outer combustion chamber (5) is located outside the internal combustion chamber (3), and an inner and outer flame connecting hole (9) is arranged between the internal combustion chamber (3) and the outer combustion chamber (5). The internal combustion chamber (3) and the outer combustion chamber (5) are bidirectionally connected. When the burner is blown by transverse wind or lateral wind, the inner flame can enter the outer flame combustion zone, and the outer flame can enter the inner flame combustion zone, so that the inner and outer flames are connected to form an overall wind-resistant and rain-resistant flame structure.

2. The weatherproof burner according to claim 1, characterized in that: The inner and outer flame connecting hole (9) crosses the inner combustion chamber shell and the outer combustion chamber shell, or when there is a common shell between the inner combustion chamber (3) and the outer combustion chamber (5), the inner and outer flame connecting hole (9) crosses the common shell.

3. The weatherproof burner according to claim 1, characterized in that: The burner further comprises a gas supply pipeline (1), an internal combustion chamber nozzle (2) and an external combustion chamber nozzle annular cavity (4); wherein the gas supply pipeline (1) is connected to the internal combustion chamber nozzle (2) and the external combustion chamber nozzle annular cavity (4) and is used to provide the gas required for the combustion of the internal flame and the external flame; the internal combustion chamber nozzle (2) extends into the internal combustion chamber (3) from the bottom of the internal combustion chamber (3), and an internal flame is generated at the outlet of the internal combustion chamber nozzle (2) and burns in the internal combustion chamber (3); the external combustion chamber nozzle annular cavity (4) is connected to the external combustion chamber (5) and is used to introduce gas into the external combustion chamber (5).

4. The weatherproof burner according to claim 3, characterized in that: The end of the gas supply pipeline (1) is a three-way joint connected to the internal combustion chamber nozzle (2) and the external combustion chamber nozzle annular cavity (4); the lower gas inlet of the three-way joint is connected to the gas, which is divided into the internal combustion chamber nozzle (2) and the external combustion chamber nozzle annular cavity (4) by two upper gas outlets.

5. The weatherproof burner according to claim 3, characterized in that: The outer combustion chamber nozzle annular cavity (4) is a cavity structure surrounding the outer periphery of the inner combustion chamber (3); or, the outer combustion chamber nozzle annular cavity (4) is a pipeline structure, and part of the pipeline enters the outer combustion chamber (5).

6. The weatherproof burner according to claim 5, characterized in that: The part of the pipeline of the external combustion chamber nozzle annular cavity (4) entering the external combustion chamber (5) forms an air supply annular pipe in the external combustion chamber (5).

7. The weatherproof burner according to claim 5, characterized in that: When the outer combustion chamber nozzle annular cavity (4) is a cavity structure surrounding the periphery of the inner combustion chamber (3), the outer combustion chamber nozzle annular cavity (4) is located below the outer combustion chamber (5) and forms an adjacent cavity with a common partition.

8. The weatherproof burner according to claim 7, characterized in that The common partition is processed with external combustion chamber spray holes (7), which are distributed circumferentially on the common partition, and the external combustion chamber nozzle annular cavity (4) and the external combustion chamber (5) are supplied with fuel gas through the external combustion chamber spray holes (7).

9. The weatherproof burner according to claim 5, characterized in that: When the outer combustion chamber nozzle annular cavity (4) is a cavity structure surrounding the periphery of the inner combustion chamber (3), the outer combustion chamber nozzle annular cavity (4) can be connected to the outer combustion chamber (5) through a plurality of air supply branches.

10. The weatherproof burner according to claim 5, characterized in that When the external combustion chamber nozzle annular cavity (4) is a tubular structure, an external combustion chamber spray hole (7) is processed on the gas supply pipeline in the external combustion chamber (5), and the external combustion chamber spray holes (7) are distributed along the length direction of the gas supply pipeline. The external combustion chamber nozzle annular cavity (4) and the external combustion chamber (5) implement fuel gas supply through the external combustion chamber spray holes (7).

11. A weatherproof burner according to claim 8 or 10, characterized in that: The external combustion chamber spray hole (7) has an inwardly inclined angle, and the angle with the vertical direction is 0 to 45 degrees.

12. The weatherproof burner according to claim 1, characterized in that The internal combustion chamber (3) is provided with an internal combustion chamber air inlet hole, and the internal combustion chamber air inlet hole is located at the bottom of the internal combustion chamber (3).

13. The weatherproof burner according to claim 1, characterized in that The external combustion chamber (5) is provided with an external combustion chamber air inlet hole (8), which is located at the bottom or side of the external combustion chamber (5) and is distributed in a circumferential manner. The external combustion chamber air inlet hole (8) located at the bottom also serves as a rain leakage hole.

14. The weatherproof burner according to claim 1, characterized in that The burner further comprises a combustion chamber top plate (6), which covers the upper part of the internal combustion chamber (3) and the upper part of the external combustion chamber (5) respectively and is a perforated metal plate or a metal mesh, and assists the burner in protecting against wind and rain.

15. The weatherproof burner according to claim 14, characterized in that When the combustion chamber top plate (6) is a metal plate, the opening diameter is 2 to 4 mm; when the combustion chamber top plate (6) is a metal mesh, the metal mesh aperture is 1 to 2 mm.

16. The weatherproof burner according to claim 14, characterized in that When the combustion chamber top plate (6) is a metal mesh, the metal mesh is in an upward arched structure for gathering flames.

17. The weatherproof burner according to claim 14, characterized in that The height of the external combustion chamber (5) is higher than that of the internal combustion chamber (3), and the coverage area of ​​the combustion chamber top plate (6) above the external combustion chamber (5) includes the area above the internal combustion chamber (3), or the coverage area of ​​the combustion chamber top plate (6) above the external combustion chamber (5) does not include the area above the internal combustion chamber (3).

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