Liftable release torch device and lifting method

Abstract

The lifting release torch device comprises a base assembly, two stand columns are arranged on the base assembly, a torch shell section used for being arranged at the bottom of a torch in a sleeving mode is arranged between the two stand columns, and the upper end of the torch shell section is rotationally connected with the two stand columns through a horizontal rotating shaft; a fixed pulley I is arranged on one side of the base assembly, and a fixed pulley II is arranged on the other side; a main winch and an auxiliary winch are arranged on the side where the second fixed pulley is located. The end of the first steel wire rope penetrates through the stand column, bypasses the first fixed pulley and then is fixed to the bottom of the torch shell section. The end of the second steel wire rope penetrates through the stand column or bypasses the second fixed pulley and then is fixed to the bottom of the torch shell section. According to the invention, the overall structure of the release torch device is improved, and the vertical pipe is put down and erected in a manner of integrally rotating and lifting the vertical pipe, so that the inspection and maintenance time of the torch is greatly shortened, the safety risk of inspection and maintenance is reduced, and a large amount of maintenance cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of torch maintenance, and in particular to a liftable venting torch device and a lifting method. Background Art

[0002] The flare venting device is mainly composed of a flare riser, a flare head, and matching high-altitude electronic ignition electrodes and cables. The support methods generally adopt rope support and self-support. The flare is characterized by a small diameter (nominal diameter between DN80 and DN300) and a height generally between 15m and 25m. The bottom is connected to the station venting pipeline and fuel gas source pipeline, and is equipped with supporting facilities such as an electronic ignition control box.

[0003] At present, flare risers at home and abroad are all fixed installation forms, and maintenance towers are generally built around large flare risers; while there are no maintenance passages for small and medium-sized flare risers. Due to structural limitations, this type of flare does not have the conditions to set up ladders and maintenance platforms on the risers. In addition, the flare area is generally located on a hillside or half-hillside at a certain safe distance from the station, and there are generally no available roads or construction access roads. Once problems such as electronic ignition failure and flare head damage occur, it is impossible to achieve maintenance cranes on site, and the top ignition electrode and flare head can only be repaired by setting up scaffolding around the flare. The manual handling, erection and dismantling of the scaffolding steel pipes all take a relatively long time, resulting in a long maintenance cycle, which has a certain impact on the normal production of the well station. At the same time, this type of maintenance method belongs to a type of high-altitude operation, with a high safety risk and a correspondingly high maintenance cost.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] The problem with the prior art is that small and medium-sized flare risers have no maintenance passages and it is difficult to set up maintenance platforms, resulting in high maintenance costs and safety risks. The present invention aims to provide a liftable flare device, which improves the overall structure of the flare device and adopts a method of overall rotation and lifting of the riser to achieve the fall and erection of the riser, thereby greatly shortening the flare maintenance time, reducing safety risks, and reducing maintenance costs.

[0006] The present invention is achieved through the following technical solutions:

[0007] A flare venting device that can be lifted and lowered comprises a base assembly, wherein the base assembly has two parallel and vertically arranged columns, a flare barrel section for sleeved on the bottom of the flare is arranged between the two columns, and the upper ends of the flare barrel section are rotatably connected to the two columns via horizontal rotating shafts, and the flare barrel section can rotate around the horizontal rotating shaft at the upper end;

[0008] A fixed pulley 1 is arranged on one side of the base assembly, and a fixed pulley 2 is arranged on the other side;

[0009] A main winch and an auxiliary winch are also provided on the side where the fixed pulley 2 is located;

[0010] The main hoist is equipped with a steel wire rope 1, the end of which passes through the column and around the fixed pulley 1 and is then fixed to the bottom of the torch tube section;

[0011] The auxiliary winch is provided with a second steel wire rope, and the end of the second steel wire rope passes through a column or passes around a second fixed pulley and is then fixed to the bottom of the torch tube section.

[0012] The present invention improves the overall structure of the flare venting device and adopts the method of overall rotation and lifting of the riser to realize the laying down and erecting of the riser, which greatly shortens the time for flare inspection and maintenance, greatly reduces the safety risk of inspection and maintenance, and saves a lot of maintenance costs.

[0013] Furthermore, a fiber ear is provided between the bottoms of the columns, and the end of the wire rope 1 passes through the columns and around the fiber ear and is fixed at the bottom of the torch tube section, or the end of the wire rope 1 passes around the fixed pulley 2 and is fixed at the bottom of the torch tube section.

[0014] Furthermore, a U-shaped handle is installed at the bottom of the torch tube section, and hooks are installed at the ends of the wire rope 1 and the wire rope 2, and the ends of the wire rope 1 and the wire rope 2 are fixed to the U-shaped handle through the hooks.

[0015] Furthermore, an inspection support frame is provided on the side where the fixed pulley is located, and the flare head is supported on the inspection support frame after landing, so as to facilitate inspection and maintenance. The size of the inspection support frame is 0.5m×0.6m×1.2m.

[0016] Furthermore, the column is made of HW steel, which has high strength and can ensure the strength of the entire torch and the safety during lifting and lowering.

[0017] Furthermore, the installation position of the fixed pulley 2 is staggered with the trajectory of the steel wire rope 1, which is equivalent to the steel wire rope 1 and the steel wire rope 2 being cross-installed, which can increase the tension more stably.

[0018] The present invention also provides a lifting method for a liftable flare venting device, and the lowering method for the flare venting device comprises the following steps:

[0019] (1) Pass one end of the wire rope of the main winch through the base assembly and around the fixed pulley, and then fix it to the U-shaped handle. Pass the two ends of the wire rope of the auxiliary winch through the columns and around the fiber ears, and then directly fix them to the U-shaped handle;

[0020] (2) Disassemble the various connecting parts of the flare tube section;

[0021] (3) After the main winch and auxiliary winch are tightened with wire rope 1 and wire rope 2 respectively, remove the connecting bolts at the bottom of the flare tube section, and then pry the bottom of the flare tube section to loosen the connection;

[0022] (4) The main winch and auxiliary winch rotate, the flare barrel section rotates, and the flare head begins to rotate and descend;

[0023] (5) When the bottom end of the flare tube section is 1.1 to 1.3 m from the ground, remove the end of the second wire rope from the hook U-shaped handle, then pass the end of the second wire rope around the fixed pulley and fix it on the U-shaped handle, and the main winch and auxiliary winch continue to rotate;

[0024] (6) When the flare barrel section rotates to form an angle of 55° to 65° with the column, the main winch continues to rotate until the flare head drops to the maintenance support frame.

[0025] Furthermore, the method for raising the flare device comprises the following steps:

[0026] (1) The auxiliary winch rotates, and the bottom of the flare tube section begins to rotate under the tension. When the flare tube section rotates to form an angle of 135° to 145° with the column, the auxiliary winch stops rotating and the main winch starts rotating to provide downward pulling force;

[0027] (2) When the bottom end of the torch barrel section is 1.1 to 1.3 m from the ground, remove the end of the second wire rope from the hook U-shaped handle and the second fixed pulley. Pass the two ends of the wire rope through the columns and around the fiber ears and then fix them directly to the U-shaped handle. The main winch continues to rotate until the torch is fully upright.

[0028] The rotation speed of the main winch and the auxiliary winch is 4 to 5 revolutions per minute.

[0029] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0030] The present invention proposes a liftable flare venting device and a lifting method. By improving the overall structure of the flare venting device, the riser is lifted and lowered by rotating the riser as a whole to achieve the laying down and erecting of the riser, which greatly shortens the time for flare inspection and maintenance, greatly reduces the safety risk of inspection and maintenance, and saves a lot of maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a flare venting device provided in an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the lifting process of the venting flare device provided in an embodiment of the present invention.

[0034] Reference numerals and corresponding parts names:

[0035] 1-base assembly, 2-column, 3-torch barrel section, 4-horizontal rotating shaft, 5-fixed pulley one, 6-fixed pulley two, 7-wire rope one, 8-wire rope two, 9-maintenance support frame, 10-main winch, 11-auxiliary winch. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0037] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, or methods are not specifically described.

[0038] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0040] Example 1

[0041] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a liftable venting torch device, comprising a base assembly 1, on which are two parallel and vertically arranged columns 2, a torch barrel section 3 for sleeved on the bottom of the torch is arranged between the two columns 2, and both sides of the upper end of the torch barrel section 3 are rotatably connected to the two columns 2 through horizontal rotating shafts 4, and the torch barrel section 3 can rotate around the horizontal rotating shaft at the upper end;

[0042] A fixed pulley 1 5 is provided on one side of the base assembly 1, and a fixed pulley 2 6 is provided on the other side;

[0043] A main winch 10 and an auxiliary winch 11 are also provided on the side where the fixed pulley 2 6 is located;

[0044] The main hoist is equipped with a steel wire rope 7, the end of which passes between the columns 2 and around the fixed pulley 5 before being fixed to the bottom of the torch tube section 3;

[0045] The auxiliary winch is provided with a steel wire rope 8 , and the end of the steel wire rope 8 passes between the columns 2 or passes around the fixed pulley 6 and is fixed to the bottom of the torch tube section 3 .

[0046] The present invention improves the overall structure of the flare venting device and adopts the method of overall rotation and lifting of the riser to realize the laying down and erecting of the riser, which greatly shortens the time for flare inspection and maintenance, greatly reduces the safety risk of inspection and maintenance, and saves a lot of maintenance costs.

[0047] Furthermore, a fiber ear is provided between the bottoms of the columns 2, and the end of the wire rope 7 passes through between the columns 2 and around the fiber ear and is fixed at the bottom of the torch barrel section 3, or the end of the wire rope 7 passes around the fixed pulley 2 6 and is fixed at the bottom of the torch barrel section 3.

[0048] Furthermore, a U-shaped handle is installed at the bottom of the torch tube section 3, and hooks are installed at the ends of the wire rope 1 7 and the wire rope 2 8, and the ends of the wire rope 1 7 and the wire rope 2 8 are fixed to the U-shaped handle through the hooks.

[0049] Furthermore, a maintenance support frame 9 is provided on the side where the fixed pulley 5 is located. After the torch head is lowered, it is supported on the maintenance support frame to facilitate maintenance and repair. The size of the maintenance support frame is 0.5m×0.6m×1.2m.

[0050] Furthermore, the column is made of HW steel, which has high strength and can ensure the strength of the entire torch and the safety during lifting and lowering.

[0051] Furthermore, the installation position of the fixed pulley 2 6 is staggered with the trajectory of the steel wire rope 1 7, which is equivalent to the cross installation of the steel wire rope 1 and the steel wire rope 2, which can increase the tension more stably.

[0052] Example 2

[0053] The embodiment of the present invention also provides a method for lowering a liftable flare device, comprising the following steps:

[0054] (1) Figure 1 As shown, one end of the wire rope of the main winch passes through the base assembly and around the fixed pulley and then fixed to the U-shaped handle, and the two ends of the wire rope of the auxiliary winch pass between the columns and around the fiber ears and then directly fixed to the U-shaped handle;

[0055] (2) Dismantle all connecting parts of the flare tube section, including the main vent flange, the pilot tube flange and the connecting cables (turn off the main power switch), the vent riser pull rope, and remove the fence and other obstacles at the fallen part of the flare;

[0056] (3) After the main winch and auxiliary winch are tightened with wire rope 1 and wire rope 2 respectively, remove the three connecting bolts at the bottom of the flare tube section, and then use a crowbar to pry the bottom of the flare tube section to loosen its connection;

[0057] (4) Two people use the winch handle to simultaneously control the rotation of the main winch and the auxiliary winch, the flare barrel section rotates, the flare head begins to rotate and descend, and the flare descending speed is controlled. The winch is controlled to rotate at 4 to 5 revolutions per minute;

[0058] (5) Figure 2 As shown, when the bottom end of the flare tube section is about 1.2m from the ground, the end of the second steel wire rope is removed from the hook U-shaped handle, and then the end of the second steel wire rope is passed around the fixed pulley 2 and fixed on the U-shaped handle, which can prevent the bottom end of the flare tube section from continuing to rise and being too high to be fixed;

[0059] (6) Continue to rotate the main winch and auxiliary winch at 4 to 5 revolutions per minute and observe whether there is any abnormal sound during the operation;

[0060] (7) When the flare tube section rotates to form a 60° angle with the column, use the main winch to continue rotating until the flare head drops to the maintenance support frame.

[0061] Example 3

[0062] The embodiment of the present invention also provides a method for raising an emptying torch device, comprising the following steps: after the torch in embodiment 2 is laid down for inspection, the wire rope 2 is wound around the fixed pulley 2 and fixed on the U-shaped handle,

[0063] (1) First, use the auxiliary winch to rotate at a speed of 4 to 5 rpm. The bottom of the flare tube section begins to rotate under the tension. When the flare tube section rotates to form an angle of 140° with the column, the auxiliary winch stops rotating and the main winch continues to rotate to provide downward pulling force.

[0064] (2) When the bottom end of the torch barrel section is 1.2m above the ground, remove the end of the second wire rope from the hook U-shaped handle and the second fixed pulley. Pass the second end of the wire rope through the columns and around the fiber ears and then fix it directly to the U-shaped handle. The main winch continues to rotate until the torch is fully upright.

[0065] (3) Connect the three bolts at the lower connection of the flare tube section, the main vent flange, the ignition pipe flange, the vent riser pull rope and other connecting parts, and remove the main winch hook and wire rope.

[0066] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liftable venting flare device, characterized in that: The invention comprises a base assembly (1), wherein the base assembly (1) has two parallel and vertically arranged upright posts (2), a flare tube section (3) for sleeved on the bottom of the flare is arranged between the two upright posts (2), the upper ends of the flare tube section (3) are rotatably connected to the two upright posts (2) via horizontal rotating shafts (4), and the flare tube section (3) can rotate around the horizontal rotating shaft at the upper end; A fixed pulley 1 (5) is provided on one side of the base assembly (1), and a fixed pulley 2 (6) is provided on the other side; A main winch (10) and an auxiliary winch (11) are also provided on the side where the second fixed pulley (6) is located; The main hoist is provided with a steel wire rope (7), the end of which passes through the column (2) and around the fixed pulley (5) and is then fixed to the bottom of the flare barrel section (3); The auxiliary winch is provided with a second steel wire rope (8), the end of which passes through the column (2) or passes around the second fixed pulley (6) and is then fixed to the bottom of the torch barrel section (3).

2. A liftable flare device according to claim 1, characterized in that: A fiber ear is arranged between the bottoms of the columns (2), and the end of the wire rope 1 (7) passes through the columns (2) and passes around the fiber ear before being fixed at the bottom of the torch barrel section (3), or the end of the wire rope 1 (7) passes around the fixed pulley 2 (6) before being fixed at the bottom of the torch barrel section (3).

3. The liftable flare device according to claim 1, characterized in that: A U-shaped handle is installed at the bottom of the torch tube section (3), and hooks are installed at the ends of the first wire rope (7) and the second wire rope (8), and the ends of the first wire rope (7) and the second wire rope (8) are fixed on the U-shaped handle through the hooks.

4. The liftable flare device according to claim 1, characterized in that: A maintenance support frame (9) is arranged on the side where the fixed pulley 1 (5) is located.

5. The liftable flare device according to claim 1, characterized in that: The columns are made of HW steel.

6. The liftable flare device according to claim 1, characterized in that: The installation position of the fixed pulley 2 (6) is staggered from the trajectory of the wire rope 1 (7).

7. A liftable flare device according to claim 4, characterized in that: The dimensions of the maintenance support frame (9) are 0.5m×0.6m×1.2m.

8. A method for lifting a liftable flare torch device, characterized in that: The method for lowering the flare device comprises the following steps: (1) Pass one end of the wire rope of the main winch through the base assembly and around the fixed pulley, and then fix it to the U-shaped handle. Pass the two ends of the wire rope of the auxiliary winch through the columns and around the fiber ears, and then directly fix them to the U-shaped handle; (2) Disassemble the various connecting parts of the flare tube section; (3) After the main winch and auxiliary winch are tightened with wire rope 1 and wire rope 2 respectively, remove the connecting bolts at the bottom of the flare tube section, and then pry the bottom of the flare tube section to loosen the connection; (4) The main winch and auxiliary winch rotate, the flare barrel section rotates, and the flare head begins to rotate and descend; (5) When the bottom end of the flare tube section is 1.1 to 1.3 m from the ground, remove the end of the second wire rope from the hook U-shaped handle, then pass the end of the second wire rope around the fixed pulley and fix it on the U-shaped handle, and the main winch and auxiliary winch continue to rotate; (6) When the flare barrel section rotates to form an angle of 55° to 65° with the column, the main winch continues to rotate until the flare head drops to the maintenance support frame.

9. A lifting method for a liftable venting flare device according to claim 8, characterized in that: The method for raising the flare device comprises the following steps: (1) The auxiliary winch rotates, and the bottom of the flare tube section begins to rotate under the tension. When the flare tube section rotates to form an angle of 135° to 145° with the column, the auxiliary winch stops rotating and the main winch starts rotating to provide downward pulling force; (2) When the bottom end of the torch barrel section is 1.1 to 1.3 m from the ground, remove the end of the second wire rope from the hook U-shaped handle and the second fixed pulley. Pass the two ends of the wire rope through the columns and around the fiber ears and then fix them directly to the U-shaped handle. The main winch continues to rotate until the torch is fully upright.

10. The liftable flare device according to claim 8, characterized in that: The rotation speed of the main winch and the auxiliary winch is 4 to 5 revolutions per minute.

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