Flare burner
By designing the torch burner as an integrated structure of main and branch pipes, combined with staggered exhaust ports, the problems of easy weld cracking and complex forming were solved, achieving higher reliability, safety and combustion efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIYAO THERMAL ENERGY ENG CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-30
AI Technical Summary
The components of existing torch burners are connected by welds, which are prone to cracking and failure. The forming process is complex, the quality is unstable, and the reliability and safety of the equipment are affected.
Design a torch burner with a main pipe and branch pipe integrated into one structure, with no internal welds, and an array of staggered exhaust holes to promote full mixing of fuel and air to form a stable flame.
It improves the reliability and safety of the burner, simplifies the manufacturing process, reduces production costs, reduces emissions of pollutants from incomplete combustion, and improves combustion efficiency and overall system efficiency.
Smart Images
Figure CN224434422U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of production safety technology, and in particular to a flare burner. Background Technology
[0002] In the refining and chemical industry, such as oil refining, petrochemicals, and coal chemicals, flare systems are critical facilities for ensuring the safe operation of the units. The main function of a flare system is to process the flare gas generated during normal operation, start-up, shutdown, and various emergency conditions, converting it into products that meet environmental protection standards through combustion. As the last line of defense for safe and stable operation in these industries, the safe and stable operation of the flare system is of paramount importance to the safety of the entire production process.
[0003] The flare burner is the core equipment in a flare system, ensuring that the flare gas meets environmental protection requirements after combustion. However, existing flare burner designs have some significant flaws. Typically, the various components of the burner are connected as a single unit via welds and other accessories. With the increasing complexity of emission device operating conditions and the significant differences in the composition of flare gas media, this design is prone to cracking and failure at the welds, affecting the reliability and safety of the equipment.
[0004] Furthermore, the manufacturing of existing flare burners involves multiple materials and requires several complex processes such as cutting, bending, drilling, and welding. These complex forming processes not only increase production costs but may also lead to quality instability during the manufacturing process. Utility Model Content
[0005] This application provides a torch burner that solves the problems of current torch burners where the various components are connected as a whole by welds and other accessories, resulting in easy cracking and failure at the welds, complex molding processes, and potential risks due to unstable overall quality.
[0006] To achieve the above objectives, this application provides a flare burner, comprising: a main pipe; and multiple branch pipes connected to the side wall of the main pipe and evenly arranged along the circumference of the main pipe, wherein the branch pipes are provided with exhaust structures; wherein the multiple branch pipes are integrally formed with the main pipe.
[0007] In some embodiments, the branch pipe includes: a top surface, a bottom surface, a first side surface, and two second side surfaces. The top surface and the bottom surface are arranged opposite each other along the height direction, the first side surface is arranged opposite to the main pipe along the length direction, and the two second side surfaces are arranged opposite to each other along the width direction. Both second side surfaces are connected between the top surface and the bottom surface, and the first side surface is connected between the top surface and the bottom surface and between the two side surfaces. The top surface includes a curved surface that protrudes away from the bottom surface, and the exhaust structure penetrates through the top surface.
[0008] In some embodiments, the top surface includes a first arcuate surface protruding away from the bottom surface, and the bottom surface includes a second arcuate surface protruding away from the top surface, wherein the ratio of the diameter of the second arcuate surface to the diameter of the first arcuate surface is 0.7-0.8.
[0009] In some embodiments, the distance between the two second sides gradually increases from the bottom surface toward the top surface.
[0010] In some embodiments, the dimension of the second side in the height direction gradually decreases from the main body toward the first side.
[0011] In some embodiments, the second side has an arc transition portion at the end near the main pipe, and the arc transition portion protrudes toward the inside of the branch pipe.
[0012] In some embodiments, within a cross-section formed by the width and height directions, the line connecting the midpoint of the top surface and the midpoint of the bottom surface is set at a first angle to the axial direction of the main pipe.
[0013] In some embodiments, the first included angle ranges from 3° to 12°.
[0014] In some embodiments, the exhaust structure includes at least two exhaust port groups spaced apart along the width direction, each exhaust port group including a plurality of exhaust ports spaced apart along the length direction.
[0015] In some embodiments, the exhaust holes of two adjacent exhaust hole groups are arranged alternately.
[0016] In some embodiments, within the projection plane formed by the width and height directions, the distance between the midpoint of the line connecting the highest point of the top surface and the lowest point of the bottom surface and the top of the main tube is a first distance, and the ratio of the first distance to the height of the main tube is 0.25-0.5.
[0017] The flare burner of this application includes a main pipe and multiple branch pipes, which are integrated with the main pipe. Compared to connecting multiple branch pipes and the main pipe through welds, the flare burner of this application is an integral structure with a continuous internal metallographic structure and no welds. This avoids weld cracking and failure, improving the reliability and safety of the flare burner. It also simplifies the forming process of the flare burner, reduces production costs, reduces the probability of quality problems caused by human factors, and improves the quality stability of the flare burner during the manufacturing process. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0020] Figure 1 This is a schematic diagram of the structure of the torch burner provided in the embodiments of this application. Figure 1 ;
[0021] Figure 2 This is a top view of the torch burner provided in the embodiments of this application;
[0022] Figure 3 This is a schematic diagram of the structure of the torch burner provided in the embodiments of this application. Figure 2 ;
[0023] Figure 4 This is a cross-sectional view of the torch burner provided in the embodiments of this application;
[0024] Figure 5 This is a side view of the main pipe and a branch pipe of the torch burner provided in the embodiments of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 100. Flare burner; 1. Main pipe; 2. Branch pipe; 21. Exhaust structure; 211. Exhaust port group; 2111. Exhaust port; 201. Top surface; 202. Bottom surface; 203. First side surface; 204. Second side surface. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0028] Please see Figure 1 This application provides a flare burner 100. The flare burner 100 includes a main pipe 1 and a plurality of branch pipes 2.
[0029] Please see Figure 1 The main pipe 1 is arranged vertically. In some embodiments, the lower end of the main pipe 1 is connected to an inlet flange (not shown).
[0030] Please see Figure 1Multiple branch pipes 2 connect to the sidewall of the main pipe 1 and are evenly arranged along the circumference of the main pipe 1. The multiple branch pipes 2 and the main pipe 1 are integrally formed. In this embodiment, the multiple branch pipes 2 and the main pipe 1 are integrally cast. Compared with connecting the multiple branch pipes 2 and the main pipe 1 by welds, the flare burner 100 of this application is an integral structure with a continuous internal metallographic structure and no welds. This can avoid weld cracking and failure, improve the reliability and safety of the flare burner 100, and also simplify the forming process of the flare burner 100, reduce production costs, and improve the quality stability of the flare burner 100 during the manufacturing process.
[0031] Please see Figure 1 and Figure 2 The branch pipe 2 is equipped with an exhaust structure 21. The flare gas enters the main pipe 1, disperses to each branch pipe 2, and is ejected from the exhaust structure 21 at the top of each branch pipe 2, entraining surrounding air and completing combustion. The exhaust structure 21 ensures that the flare gas is evenly distributed within the burner, thereby achieving more stable and uniform combustion. This helps improve combustion efficiency and reduce pollutants generated by incomplete combustion, reducing emissions of harmful gases such as unburned hydrocarbons, carbon monoxide, and nitrogen oxides, thus lowering the environmental impact.
[0032] Please see Figure 2 The exhaust structure 21 includes at least two exhaust port groups 211 spaced apart along the width direction, and each exhaust port group 211 includes multiple exhaust ports 2111 spaced apart along the length direction. For example, in this embodiment, the exhaust structure 21 may include two exhaust port groups 211 spaced apart along the width direction, and each exhaust port group 211 may include fourteen exhaust ports 2111 spaced apart along the length direction. In other embodiments, only one exhaust port group 211, three exhaust port groups 211, or more exhaust port groups 211 may be provided depending on different operating conditions. In other embodiments, the number, spacing, angle, and other parameters of the exhaust ports 2111 may be adjusted according to different operating conditions. Multiple exhaust ports 2111 can promote sufficient mixing of fuel and air, improve combustion efficiency, and reduce fuel consumption; multiple exhaust ports 2111 help form a stable flame, reduce flame fluctuations and the risk of flameout, and improve the safety and reliability of the system.
[0033] Please see Figure 2The exhaust ports 2111 of adjacent exhaust port groups 211 are arranged in an alternating pattern. This alternating arrangement of exhaust ports 2111 promotes more thorough mixing of fuel gas and air, helps create turbulence, and improves combustion efficiency and uniformity. It also reduces flame fluctuations, making the flame more stable, helping to prevent flameout, and improving system safety and reliability. Furthermore, the alternating arrangement of exhaust ports 2111 allows for more even heat distribution within the burner, reducing localized overheating or cold spots and extending equipment lifespan. Finally, it helps reduce pollutants from incomplete combustion, such as carbon monoxide and unburned hydrocarbons, thereby reducing environmental impact. Because turbulence and uniform combustion help reduce sound wave generation, the alternating arrangement of exhaust ports 2111 also reduces noise generated during combustion.
[0034] Please see Figure 3 Branch pipe 2 includes a top surface 201, a bottom surface 202, a first side surface 203, and two second side surfaces 204. The top surface 201 and bottom surface 202 are positioned opposite each other along the height direction. The first side surface 203 is positioned opposite to the main pipe 1 along the length direction. The two second side surfaces 204 are positioned opposite each other along the width direction. Both second side surfaces 204 are connected between the top surface 201 and the bottom surface 202. The first side surface 203 is connected between the top surface 201 and the bottom surface 202 and also connects between the two side surfaces. The exhaust structure 21 penetrates the top surface 201.
[0035] Please see Figure 3 The top surface 201 includes a curved surface protruding away from the bottom surface 202. By setting the top surface 201 as a curved surface and then setting multiple exhaust holes 2111 on the curved surface, compared with setting exhaust holes 2111 on a flat surface, the opening direction of the exhaust holes 2111 in this application can be flexibly adjusted and has different combinations. It can be set perpendicular to the horizontal direction or at an angle to the horizontal direction, which can achieve horizontal flow or swirling flow. It can guide the airflow to be more evenly distributed in the flare burner 100, reduce dead angles and eddies in the airflow, thereby improving combustion efficiency; it can also promote turbulent mixing of flare gas and air, making combustion more complete and uniform, and reducing the possibility of incomplete combustion.
[0036] Please see Figure 3 The bottom surface 202 includes a curved surface that protrudes away from the top surface 201. By setting the bottom surface 202 as a curved surface, the smoothness of the branch pipe 2 can be improved, the resistance of air outside the branch pipe 2 passing through the branch pipe 2 can be reduced, which helps to improve the overall efficiency of the flare burner 100, promotes the full mixing of flare gas and air, and thus enhances the combustion effect; it also helps to reduce energy consumption and improve the economic and environmental performance of the flare system.
[0037] Please see Figure 3The top surface 201 includes a first arcuate surface protruding away from the bottom surface 202, and the bottom surface 202 includes a second arcuate surface protruding away from the top surface 201. The ratio of the diameter of the second arcuate surface to the diameter of the first arcuate surface is 0.7-0.8. In this embodiment, the ratio of the diameter of the second arcuate surface to the diameter of the first arcuate surface is 0.75. In some examples, the ratio of the diameter of the second arcuate surface to the diameter of the first arcuate surface can be any one of 0.7, 0.72, 0.74, 0.76, 0.78, or 0.8, or a range between any two values. The distance L1 between the two second side surfaces 204 gradually increases from the bottom surface 202 toward the top surface 201. This can further improve the smoothness of the branch pipe 2, reduce the resistance of air passing through the branch pipe 2, help improve the overall efficiency of the flare burner 100, promote the full mixing of flare gas and air, thereby enhancing the combustion effect; it also helps to reduce energy consumption and improve the economic and environmental performance of the flare system.
[0038] Please see Figure 3 The dimension L2 of the second side 204 in the height direction gradually decreases from the main pipe 1 toward the first side 203. This reduces the weight of the flare burner 100 and improves its aesthetics.
[0039] In some embodiments, the second side 204 has an arc-shaped transition portion (not shown) at the end near the main pipe 1, which protrudes towards the inside of the branch pipe 2. This reduces the resistance of the flare gas at the connection between the main pipe 1 and the branch pipe 2, promotes the smooth flow of the flare gas, and improves the combustion efficiency of the flare gas. The arc-shaped transition portion can effectively reduce the stress concentration at the connection between the main pipe 1 and the branch pipe 2, reduce material fatigue and damage caused by pressure and thermal stress, and extend the service life of the flare burner 100.
[0040] Please see Figure 4 Within the cross-section formed by the width and height directions, the line connecting the midpoint of the top surface 201 and the midpoint of the bottom surface 202 forms a first angle with the axis of the main pipe 1. The range of the first angle α is 3°-12°. In this embodiment, the first angle α is 6°. In other embodiments, the first angle α can be any one or any two values of 3°, 4°, 5°, 7°, 8°, 9°, 10°, 11°, and 12°. That is, the branch pipe 2 is set at the first angle α with the main pipe 1, so that the air enters the combustion zone with a certain rotation angle and swirling intensity after passing through the branch pipe 2, causing the air to rotate and flow at a certain angle. The flare gas ejected from the exhaust port 2111 is carried along by the rotating air and forms a rotating jet, which is fully mixed and flows in the circumferential direction, thereby improving the combustion efficiency; it can also promote the turbulent mixing of the flare gas and the air, making the combustion more complete and uniform, and reducing the possibility of incomplete combustion.
[0041] Please see Figure 5 Within the projection plane formed by the width and height directions, the distance between the midpoint of the line connecting the highest point of the top surface 201 and the lowest point of the bottom surface 202 and the top of the main pipe 1 is the first distance H1. The ratio of the first distance H1 to the height H2 of the main pipe 1 is 0.25-0.5. In this embodiment, the ratio of the first distance H1 to the height H2 of the main pipe 1 is 1 / 3. This ensures that the distance between the branch pipe 2 and the main pipe 1 is appropriate, which helps to evenly distribute the airflow, promotes the full mixing of flare gas and air, and improves combustion efficiency; it also helps to stabilize the flame, reduce the risk of flame fluctuation and extinction, and improve the safety and reliability of the flare burner 100; and it helps to reduce the pressure loss of flare gas between the branch pipe 2 and the main pipe 1, thereby improving the overall efficiency of the system.
[0042] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0043] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0044] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A flare burner (100) characterized in that, include: Supervisor (1); Multiple branch pipes (2) are connected to the side wall of the main pipe (1) and are evenly arranged along the circumference of the main pipe (1). The branch pipes (2) are provided with exhaust structures (21). Among them, the multiple branch pipes (2) and the main pipe (1) are an integral structure.
2. The flare burner (100) according to claim 1, characterized in that The branch pipe (2) includes: a top surface (201), a bottom surface (202), a first side surface (203), and two second side surfaces (204). The top surface (201) and the bottom surface (202) are arranged opposite each other along the height direction. The first side surface (203) is arranged opposite to the main pipe (1) along the length direction. The two second side surfaces (204) are arranged opposite to each other along the width direction. The two second side surfaces (204) are connected between the top surface (201) and the bottom surface (202). The first side surface (203) is connected between the top surface (201) and the bottom surface (202) and between the two side surfaces. The top surface (201) includes a curved surface that protrudes away from the bottom surface (202), and the exhaust structure (21) penetrates the top surface (201).
3. The flare burner (100) according to claim 2, characterized in that The top surface (201) includes a first arc surface protruding away from the bottom surface (202), and the bottom surface (202) includes a second arc surface protruding away from the top surface (201). The ratio of the diameter of the second arc surface to the diameter of the first arc surface is 0.7-0.
8.
4. The torch burner (100) according to claim 2, characterized in that, The distance between the two second side surfaces (204) gradually increases from the bottom surface (202) toward the top surface (201).
5. The torch burner (100) according to claim 2, characterized in that, The dimension of the second side (204) in the height direction gradually decreases from the main tube (1) toward the first side (203).
6. The torch burner (100) according to claim 2, characterized in that, The second side (204) has an arc transition portion at one end near the main pipe (1), and the arc transition portion protrudes toward the inner side of the branch pipe (2).
7. The torch burner (100) according to claim 2, characterized in that, Within the cross section formed by the width direction and the height direction, the line connecting the midpoint of the top surface (201) and the midpoint of the bottom surface (202) forms a first angle with the axial direction of the main pipe (1).
8. The torch burner (100) according to claim 7, characterized in that, The first included angle ranges from 3° to 12°.
9. The torch burner (100) according to claim 2, characterized in that, The exhaust structure (21) includes at least two exhaust hole groups (211) spaced apart along the width direction, and each exhaust hole group (211) includes a plurality of exhaust holes (2111) spaced apart along the length direction.
10. The torch burner (100) according to claim 9, characterized in that, The exhaust holes (2111) of two adjacent exhaust hole groups (211) are arranged in an alternating manner.
11. The torch burner (100) according to claim 10, characterized in that, Within the projection plane formed by the width direction and the height direction, the distance between the midpoint of the line connecting the highest point of the top surface (201) and the lowest point of the bottom surface (202) and the top of the main tube (1) is the first distance, and the ratio of the first distance to the height of the main tube (1) is 0.25-0.5.