An elevated flare

By forming an integral spatial truss structure with the tower and flare tube in the elevated flare system, and using rod and flange connections, the problem of independent tower and flare tube installation is solved, achieving the effects of reducing wind load, improving structural stability, and facilitating maintenance.

CN115875683BActive Publication Date: 2025-11-18SHANGHAI QIYAO THERMAL ENERGY ENG CO LTD +1
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Patent Information

Application Number
CN202211360174.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-02
Publication Date
2025-11-18
Estimated Expiration
2042-11-02

AI Technical Summary

Technical Problem

In existing elevated flare systems, the tower and flare tube are set up independently, which fails to fully utilize the structural characteristics of both, resulting in large wind loads and inconvenient maintenance.

Method used

The tower and flare tube are connected by rods to form an integrated spatial truss structure, making the flare tube part of the tower's load-bearing system. Flange connections are used to make it detachable, reducing the tower's wind-blocking area and enhancing its overall lateral stiffness.

Benefits of technology

It reduces wind load, lowers tower deformation, improves structural stability, facilitates maintenance, and enhances the flexibility of overall layout.

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Abstract

The application provides a high-level torch, comprising: a torch barrel, the torch barrel comprising a plurality of torch barrel segments, adjacent torch barrel segments being connected through a connecting piece; a rod body; a tower, the tower comprising at least two tower columns, the tower columns being connected with the torch barrel through the rod body, adjacent tower columns being connected through the rod body, the tower columns comprising a plurality of tower column segments, adjacent tower column segments being connected through the connecting piece. The application strengthens the stability of the high-level torch and improves the lateral stiffness and overall strength of the high-level torch by forming a whole space truss structure of the tower and the torch barrel.
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Description

Technical Field

[0001] This application relates to the field of flare system technology, specifically to an elevated flare. Background Technology

[0002] Elevated flares have been developed in China for decades. Based on different support methods, they are mainly divided into two categories: detachable and fixed-type elevated flares. Detachable elevated flares have the flare tube located on the outside of the tower, connected to the tower via guide rails, allowing for individual disassembly and maintenance of single or multiple systems. Fixed elevated flares have the flare tube located on the inside of the tower, with each section welded together on-site and connected to the tower via flexible tie rods. Maintenance requires stopping the entire flare system for disassembly. Both of these flare tower systems separate the tower and the flare tube into two independent parts. The tower only provides lateral support to the flare tube, with the tube's weight directly transferred to the ground foundation. This design does not consider the beneficial effects between the two and does not fully utilize its structural characteristics. Summary of the Invention

[0003] This application provides an elevated flare, which solves the problem of current elevated flares having the tower and flare tube set up independently.

[0004] The elevated flare according to the first embodiment of this application includes:

[0005] The flare tube body comprises several flare tube sections, which are connected to each other by connectors.

[0006] Rod body;

[0007] The tower frame includes at least two tower columns, which are connected to the flare tube via poles. Adjacent tower columns are connected to each other via poles. Each tower column includes several tower column segments, which are connected to each other via connectors.

[0008] Optionally, in other embodiments of this application, the rod includes a first rod and a second rod, the first rod being perpendicular to the torch tube, and the second rod forming an angle with the first rod.

[0009] Optionally, in other embodiments of this application, the flare tube includes a plurality of spaced-apart clamps, and the rod is connected to the flare tube through the clamps.

[0010] Optionally, in other embodiments of this application, the tower column section and the flare tube section have the same height in a direction perpendicular to the horizontal plane.

[0011] Optionally, in other embodiments of this application, the connector includes a flange.

[0012] Optionally, in other embodiments of this application, the rod is connected to the tower column via a connector.

[0013] Optionally, in other embodiments of this application, the distance between adjacent clamps can be 6 to 10 meters, 7 to 9 meters, or 8 meters.

[0014] Optionally, in other embodiments of this application, the included angle between the first rod and the second rod can be 30° to 50°, 35° to 45°, or 40°.

[0015] Optionally, in other embodiments of this application, the included angle between adjacent first rods connecting the torch tube and the tower column can be 50° to 70°, 55° to 65°, or 60°.

[0016] Optionally, in other embodiments of this application, the elevated flare further includes a flare head, which is disposed at the top of the flare tube.

[0017] The elevated torch according to the embodiments of this application has at least the following technical effects:

[0018] 1) The tower and flare tube of this application are connected by a rod to form an integral spatial truss structure, which reduces the wind-blocking area of ​​the tower, thereby reducing the wind load and improving the stress condition of the overall structure; as part of the structural lateral force resisting system, the overall deformation of the tower and flare tube will be smaller.

[0019] 2) Adjacent flare tube sections and adjacent tower column sections are connected by connectors, which facilitates disassembly and maintenance. Attached Figure Description

[0020] 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 accompanying 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.

[0021] Figure 1 This is a schematic elevation view of an elevated torch provided in one embodiment of this application;

[0022] Figure 2 This is a partially enlarged elevation view of an elevated torch provided in one embodiment of this application;

[0023] Figure 3 This is a top view of an elevated torch provided in one embodiment of this application.

[0024] The markings in the diagram represent: 1-Flame tube body, 11-Flame tube body section, 12-Clamping hoop, 2-Pole body, 21-First pole body, 22-Second pole body, 23-Third pole body, 24-Fourth pole body, 25-Connecting pole body, 3-Tower frame, 31-Tower column, 311-Tower column section, 4-Connector, 5-Flame head. Detailed Implementation

[0025] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0026] This application provides an elevated flare. The following provides a detailed description of each embodiment. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0027] This application provides an elevated flare, comprising: a flare tube 1, the flare tube 1 comprising several flare tube segments 11, adjacent flare tube segments 11 being connected by connectors 4; a pole 2; and a tower 3, the tower 3 comprising at least two tower columns 31, the tower columns 31 being connected to the flare tube 1 via the pole 2, adjacent tower columns 31 being connected by the pole 2, and the tower column 31 comprising several tower column segments 311, adjacent tower column segments 311 being connected by connectors 4.

[0028] In this application, the tower 3 and the flare tube 1 are connected by a member 2 to form an integrated spatial truss structure. The flare tube 1 serves as a chord member of the spatial truss structure, making it an important component of the load-bearing system of the tower 3. The wind-blocking area of ​​the tower column 31 of the tower 3 is the largest. Since the flare tube 1 also serves as the tower column 31, the wind-blocking area of ​​the tower 3 can be reduced, thereby significantly reducing wind load. This is beneficial to the overall deformation and overturning resistance of the tower 3, as well as the stress conditions of each member.

[0029] Since the torch tube 1 is often much larger than the tower column 31, having the torch tube 1 also serve as the tower column 31 increases the lateral stiffness of the entire structure and reduces the overall deformation of the tower 3. Furthermore, compared to a fixed tower 3, the torch tube 1 in this application's structure no longer needs to transmit horizontal loads through flexible tie rods; the horizontal load is directly transmitted to the ground foundation through the rod 2. This force transmission path is more direct and efficient, the torch tube 1 is more firmly constrained, and deformation is reduced.

[0030] Furthermore, in the past, the flare tube 1 was arranged within the tower 3, and when there were a large number of flare tubes 1, the space was often insufficient for arrangement. In this application, the flare tube 1 also serves as the tower column 31, which frees up the internal space of the tower 3, which is conducive to the arrangement of other auxiliary facilities and makes the overall arrangement more flexible.

[0031] Please see Figure 1 The flare tube 1 is composed of multiple flare tube sections 11 connected by connectors 4. The specific number of flare tube sections 11 depends on the required height of the flare tube 1. Correspondingly, the tower column 31 is composed of multiple tower column sections 311 connected by connectors 4. The specific number of tower column sections 311 depends on the required height of the tower column 31. Each flare tube section 11 is equipped with corresponding auxiliary pipelines, and each auxiliary pipeline section is also connected by connectors 4. The auxiliary pipelines are mounted on the outer wall of each flare tube section 11 via supports. The auxiliary pipelines include steam pipelines, fuel gas pipelines, and pipelines used for wiring various electrical instruments, etc. The auxiliary pipelines are assembled and disassembled together with the flare tube sections 11. The flare tube 1 is cylindrical, and the tower column 31 can be made of cylindrical steel pipe. The torch tube 1 is perpendicular to the ground. The upper half of the tower column 31 of the tower 3 is parallel to the torch tube 1, and the lower half forms a certain angle of inclination with the horizontal plane to enhance the overall support of the elevated torch.

[0032] Please see Figure 2 The rod 2 includes a first rod 21 and a second rod 22. The first rod 21 is perpendicular to the flare tube 1, and the second rod 22 forms an angle with the first rod 21. Two sets of staggered second rods 22 can be set between two adjacent parallel first rods 21. The rod 2 in this application can be made of cylindrical steel pipe, and the first rod 21 and the second rod 22 are connected by connectors 4, thereby realizing a detachable connection between the rods 2. This application can also provide a third rod 23 parallel to the flare tube 1, which connects the first rod 21 and the second rod 22, and serves to strengthen the connection between the flare tube 1 and the tower 3. In this application, the flare tube 1 and the tower column 31 form the chord of the spatial truss system, and the rods 2 form the web members of the spatial truss system, making the flare tube 1 an important part of the load-bearing system of the tower 3, thereby reducing wind load and improving the overall structural stress.

[0033] Specifically, the included angle between the first rod 21 and the second rod 22 can be 30° to 50°, 35° to 45°, or 40°. When the included angle between the first rod 21 and the second rod 22 is within the above range, the second rod 22 can provide more lateral stiffness, and the elevated flare will be more effective in resisting wind and earthquakes.

[0034] Furthermore, the flare tube 1 includes several spaced-apart clamps 12, through which the rod 2 is connected to the flare tube 1. The clamps 12 are located on the outside of the flare tube 1, and their diameter is generally 150-200 mm larger than that of the flare tube 1. Connecting plates can also be installed on the clamps 12, through which the rod 2 is connected to the clamps 12. Bolt holes can be provided on the connecting plates, allowing high-strength bolts to connect the rod 2 and the connecting plates, thus achieving the connection between the flare tube 1 and the rod 2.

[0035] Specifically, the distance between adjacent clamps 12 can be 6-10 meters, 7-9 meters, or 8 meters. The distance between adjacent clamps 12 is related to the slenderness ratio of the tower column 31 and the stability calculation of the tower column 31. If the distance between adjacent clamps 12 is controlled within the above range, the design of the tower column 31 will be more reasonable.

[0036] Furthermore, the connecting component 4 includes a flange. Compared to the fixed tower 3, the flare tubes 1 in this application are connected by flanges, enabling detachment and facilitating maintenance and repair; while the tubes of the fixed tower 3 are all welded together, making disassembly impossible. High-strength bolts are used at the flanges, with a bolt performance grade of not less than 8.8S, and at least four bolts at each location, for example, four, six, eight, or more. The flange size is related to the diameter of the connection point; for example, the diameter of the flange at the flare tube 1 is 100–400 mm larger than the diameter of the flare tube 1, the diameter of the flange at the tower column 31 is 100–400 mm larger than the diameter of the tower column 31, and the diameter of the flange at the pole 2 is 100–400 mm larger than the diameter of the pole 2.

[0037] Furthermore, the tower column section 311 and the flare tube section 11 are at the same height in the direction perpendicular to the horizontal plane (as shown by the Y-axis in the figure). This equal height facilitates the segmented disassembly of the elevated flare tube during maintenance and repair. Each flare tube section 11 is 15–25 meters long, but can also be 17–23 meters or 20–22 meters. The distance between the tower column 31 and the flare tube 1 is between 8 and 20 meters, depending on the height of the tower 3. To ensure a more reasonable distribution of internal forces within the tower 3, the distance between the tower column 31 and the flare tube 1 needs to be adjusted to maintain an angle between the first rod 21 and the second rod 22 between 30 and 50 degrees.

[0038] Furthermore, the rod 2 is connected to the tower column 31 via a connector 4. Specifically, a short connecting rod 25 is welded onto the tower column 31 as a connecting component. The direction of this connecting rod 25 is the same as that of the first rod 21 and the second rod 22. The first rod 21 and the second rod 22 are connected to the connecting rod 25 extending from the tower column 31 via flanges.

[0039] Please see Figure 3 The two tower columns 31 are connected to the flare tube 1 by rods 2, forming a triangle. When the tower 3 is high and the effects of wind or earthquakes are significant, an additional tower column 31 can be added, making the connection between the tower column 31 and the flare tube 1 a quadrilateral. The included angle between the two first rods 21 connecting the flare tube 1 and the tower column 31 can be 50°–70°, 55°–65°, or 60°. Preferably, the included angle between the two first rods 21 connecting the flare tube 1 and the tower column 31 is 60°, that is, the length of the first rod 21 connecting the tower column 31 and the flare tube is equal to the length of the first rod 21 connecting the two tower columns 31. The first rods 21 between the tower column 31 and the flare tube 1 form an equilateral triangle structure, making the overall structure of the elevated flare more stable and better able to resist the effects of wind or earthquakes.

[0040] Furthermore, the first rod 21 connecting the flare tube 1 and the tower column 31 is also connected by a fourth rod 24. Preferably, the fourth rods 24 are connected at the midpoint of the first rods 21. When the first rods 21 between the tower column 31 and the flare tube 1 form an equilateral triangle, the fourth rods 24 also form an equilateral triangle. By adding the fourth rod 24, the connection between the tower 3 and the flare tube 1 is further stabilized.

[0041] Furthermore, the elevated flare also includes a flare head 5, which is located at the top of the uppermost flare tube section 11 and is connected to the flare tube section 11 via a flange.

[0042] In practice, the hoisting steps for the elevated flare include:

[0043] 1) Each section of the flare tube 11 and the corresponding tower column 311 are hoisted in sequence, and after aligning their respective flanges, they are connected with bolts;

[0044] 2) Then hoist the first rod 21 and the second rod 22. After the assembly parts of the first rod 21 and the second rod 22 are aligned with the bolt holes at the corresponding positions of the tower column 31 and the torch tube 1, tighten the bolts to complete the fastening.

[0045] 3) After all the poles 2 in this section are installed, the next section will be hoisted, and so on, until all the assembly is completed.

[0046] This application provides an elevated flare system where the tower 3 and flare tube 1 are connected by a strut 2 to form an integrated spatial truss structure. This reduces the wind-blocking area of ​​the tower 3, thereby reducing wind load and improving the overall structural stress distribution. As part of the structural lateral force resisting system, the overall deformation of the tower 3 and flare tube 1 is also reduced. Furthermore, adjacent flare tube sections 11 and adjacent tower column sections 311 are connected by connectors 4, facilitating disassembly and maintenance.

[0047] The above provides a detailed description of an elevated flare provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An elevated torch, characterized in that, include: The flare tube body comprises several flare tube body segments, which are connected to each other by connectors. Each flare tube body segment is equipped with a corresponding auxiliary pipeline, which is mounted on the outer wall of each flare tube body segment by a bracket. The rod body includes a first rod body and a second rod body, wherein the first rod body is perpendicular to the torch tube body, and the second rod body forms an angle with the first rod body; the angle between the first rod body and the second rod body is 30° to 50°. The tower includes at least two columns, which are connected to the flare tube via a connecting rod. Adjacent columns are connected by the connecting rod to form an overall spatial truss structure, with the flare tube serving as the chord of the spatial truss structure. Each column comprises several column segments, which are connected by connectors. The column segments and the flare tube segments have the same height in the direction perpendicular to the horizontal plane. During maintenance and repair, the elevated flare tube is disassembled in sections. The angle between the adjacent first connecting rods of the flare tube and the column is 50° to 70°.

2. The elevated flare according to claim 1, characterized in that, The torch tube includes several spaced-apart clamps, and the rod is connected to the torch tube through the clamps.

3. The elevated flare according to claim 1, characterized in that, The connector includes a flange.

4. The elevated flare according to claim 1, characterized in that, The pole is connected to the tower column via the connector.

5. The elevated flare according to claim 2, characterized in that, The distance between adjacent clamps is 6 to 10 meters.

6. The elevated flare according to claim 1, characterized in that, The elevated torch also includes a torch head, which is located at the top of the torch cylinder.

Citation Information

Patent Citations

  • Elevated flare system with online maintaining and expansion properties

    CN201688421U

  • Novel high-altitude discharge flare tower capable of resisting external force

    CN216517195U

  • High-altitude discharge flare tower with guide rails

    CN217001146U