Torch cylinder mounting method, torch cylinder dismounting method and overturning lifting lug

Abstract

According to the torch barrel mounting method, the torch barrel dismounting method and the overturning lifting lug, the overturning lifting lug is detachably mounted at the flange end of the torch barrel, and when the torch barrel needs to be mounted or dismounted, the overturning lifting lug is matched with the lifting winch to achieve overturning of all sections of the torch barrel; a traditional overturning pulley block is replaced to overturn the torch barrel, a torch overturning winch is omitted, the weight of the torch barrel is reduced, and the structure of the torch tower is optimized.

Description

Technical Field

[0001] The invention belongs to the field of flare barrels, and in particular relates to a flare barrel installation method, a dismantling method and a flip lifting lug. Background Art

[0002] At present, the installation, disassembly and maintenance of the elevated flare barrel are often carried out by hoisting winches, flipping winches, balancing winches and matching pulley blocks. According to the weight of the flare barrel to be lifted and flipped, the hoisting winches, flipping winches and balancing winches are designed and manufactured, and then the barrel lifting and flipping lugs, pulley blocks, etc. are designed according to the barrel specifications and weight. For example, the hoisting winch is used to lift the flare barrel upside down, the flipping winch is used to flip the barrel, and the balancing winch is used for traction.

[0003] However, when using a flip winch to install, disassemble, and overhaul the elevated flare barrel, after each section of the barrel is installed or dismantled, the flip pulley block needs to be removed and reinstalled at the flip lifting lug position of the next section of the flare barrel, resulting in a long construction period and a high risk of working at height.

[0004] The Chinese patent with publication number CN 214270138U discloses a flare barrel installation device, which uses a pulley block and a turning lug and a lifting lug to turn and lift the flare barrel. In addition, a turning winch and a lifting winch need to be operated alternately to install the flare barrel. The operation is complicated and the construction period is long. Summary of the invention

[0005] The object of the present invention is to provide a flare barrel installation method, a dismantling method and a flip lifting lug to overcome the above technical defects.

[0006] In order to solve the above technical problems, the present invention provides a method for installing a flare barrel, comprising:

[0007] Transport all target flare barrels to designated locations;

[0008] Take the upper body lifting ear of the i-th target flare barrel as the lifting point, start the hoisting winch to lift and flip the i-th target flare barrel to the vertical direction, where i is a positive integer;

[0009] With the lower body lifting lug of the i-th target flare barrel as the lifting point, the hoisting winch lifts the i-th target flare barrel and slides it along the track inside the flare tower to the preset position, fixing the i-th target flare barrel;

[0010] Install the flip lug on the top flange end of the flare barrel of the i-1 section;

[0011] Using the flipping lug as the lifting point, start the truck crane to flip the i-1 section target flare barrel from 0° to 90°, so that the i-1 section target flare barrel is directly below the i section target flare barrel;

[0012] Connect the target flare barrel of the i-th section with the target flare barrel of the i-1-th section;

[0013] Repeat the above steps to complete the installation of the flare barrels of other programs.

[0014] After transporting all target flare barrels to the designated location, the following steps are also included:

[0015] Take the flare head and install it on the top of the target flare barrel of section i;

[0016] The i-th section target flare barrel body with the flare head is placed horizontally, and the bottom flange of the i-th section target flare barrel body with the flare head is connected to the flip base.

[0017] Take the upper body lifting lug of the i-th target flare barrel as the lifting point, start the hoisting winch to hoist and flip the i-th target flare barrel to the vertical direction, specifically including:

[0018] The upper body lifting lug of the target flare barrel of section i is used as the lifting point, and the wire rope of the lifting winch is connected to the lifting point;

[0019] Start the hoisting winch to hoist and flip the target flare barrel of section i to a vertical direction;

[0020] Remove the connection between the flip base and the bottom flange of the flare barrel of Section i.

[0021] Using the lower body lifting lug of the i-th target flare barrel as the lifting point, hoisting and lifting the i-th target flare barrel to the preset position by the hoisting winch, and fixing the i-th target flare barrel, specifically including:

[0022] The i-th flare barrel is hoisted by hoisting winch using the lower body lifting ear of the i-th flare barrel as the lifting point. The i-th flare barrel is lifted along the track on the flare tower to a position 1000mm away from the top flange of the i-1-th flare barrel, and the i-th flare barrel is fixed.

[0023] The flip lifting lug comprises a fan-shaped annular base plate, on which a plurality of bolt holes are provided;

[0024] Two parallel and opposite rib plates are fixed on one plate surface of the fan annular base plate, an ear plate is fixed between the two rib plates, and the ear plate is perpendicular to the fan annular base plate.

[0025] The method of dismantling the flare barrel includes:

[0026] The lower body lifting lug of the second section target flare barrel is used as the lifting point, and the wire rope in the lifting point is wound around the lifting winch through the lifting pulley block in the flare tower frame;

[0027] Connect the bottom flange of the first section flare barrel to the flip base;

[0028] Start the hoisting winch to lift the second section and above target flare barrels, and isolate the first section target flare barrel;

[0029] Install the flip lug on the top flange end of the first section flare barrel;

[0030] Using the flipping lifting lug as the lifting point, start the truck crane to flip the first section of the flare barrel from the vertical direction to the horizontal direction;

[0031] Remove the connection between the flip base and the bottom flange of the first section flare barrel;

[0032] Use a truck crane to lift the first section of the target flare barrel to the placement position;

[0033] Lower the second section and above target flare barrel until the bottom of the barrel contacts the flip base;

[0034] Connect the bottom flange of the second stage flare barrel to the flip base;

[0035] Repeat the above steps to complete the removal of the flare barrels of other programs.

[0036] The removal process of the last section of the flare barrel with the flare head includes:

[0037] Take the upper barrel lifting ear of the last section of the flare barrel with the flare head as the lifting point, and wrap the wire rope in the lifting point around the lifting winch via the lifting pulley block in the flare tower. Connect the bottom flange of the last section of the flare barrel with the flare head to the flip base. Start the lifting winch to flip the last section of the flare barrel with the flare head from the vertical direction to the horizontal direction. Remove the whole last section of the flare barrel with the flare head and lift it to the placement position.

[0038] The flip lifting lug comprises a fan-shaped annular base plate, on which a plurality of bolt holes are provided;

[0039] Two parallel and opposite rib plates are fixed on one plate surface of the fan annular base plate, an ear plate is fixed between the two rib plates, and the ear plate is perpendicular to the fan annular base plate.

[0040] A flip lifting lug is used in a flare barrel installation method and a flare barrel removal method, and comprises a fan-shaped annular base plate, on which a plurality of bolt holes are opened;

[0041] Two parallel and opposite rib plates are fixed on one plate surface of the fan annular base plate, an ear plate is fixed between the two rib plates, and the ear plate is perpendicular to the fan annular base plate.

[0042] The beneficial effects of the present invention are as follows:

[0043] The flipping lug is detachably mounted on the flange end of the flare barrel. When the flare barrel needs to be installed or removed, the flipping lug cooperates with the lifting winch to realize the flipping of each segment of the flare barrel, replacing the traditional flipping pulley set to flip the flare barrel, eliminating the flare flipping winch, reducing the weight of the flare barrel and optimizing the flare tower structure.

[0044] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is an installation flow chart of the flare barrel installation method.

[0046] Figure 2 It is a dismantling flow chart of the flare barrel dismantling method.

[0047] Figure 3 It is a schematic diagram of the structure of a flare barrel with a flip lifting lug installed.

[0048] Figure 4 It is a schematic diagram of the structure of the flip lifting ear.

[0049] Description of reference numerals:

[0050] 100. Flip the lifting lugs;

[0051] 101. fan ring base plate; 102. rib plate; 103. ear plate. DETAILED DESCRIPTION

[0052] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0053] It should be noted that, in the present invention, the up, down, left and right in the figure are deemed to be the up, down, left and right of the flare barrel installation method described in this specification.

[0054] The exemplary embodiments of the present invention are now described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present invention. In the accompanying drawings, the same units / elements are marked with the same reference numerals.

[0055] Unless otherwise specified, the terms (including technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is understood that the terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

[0056] When installing or dismantling the flare barrel, the conventional method is to use a tipping winch and a lifting winch in conjunction with a tipping pulley group and a lifting pulley group to achieve the tipping of the flare barrel. The present invention removes the tipping winch and the tipping pulley group, and retains the flare tower, as well as the track inside the flare tower and the lifting pulley group installed on the flare tower for the lifting winch, wherein the torch track is used to guide the sliding of the flare barrel. Since the flare tower, the torch track, the lifting winch, etc. are existing structures, their specific structures will not be repeated.

[0057] It should be noted that Figure 1 and Figure 2 The arrows in the figure indicate the order of the steps for installation or removal.

[0058] The flare barrel itself has two lifting ears, the one near the top of the barrel is called the upper barrel lifting ear, and the one near the bottom of the barrel is called the lower barrel lifting ear.

[0059] When the flare barrel is in an upright position, from bottom to top (top here refers to the position of the flare head), there are the first-section flare barrel, the second-section flare barrel... the i-th section flare barrel, i is a positive integer, for example, a flare barrel is composed of seven-section flare barrels, then i=7.

[0060] First embodiment:

[0061] This embodiment involves a method for installing a flare barrel. Figure 1 ,include:

[0062] Step 1: transport all target flare barrels to the designated location, take the flare head and install it on the top of the target flare barrel of section i; follow the arrows, such as Figure 1 As shown in the first figure, the i-th section target flare barrel body with the flare head is placed horizontally, and the bottom flange of the i-th section target flare barrel body with the flare head is connected to the flip base.

[0063] Step 2: Use the upper body lifting ear of the target flare barrel of section i as the lifting point (as indicated by the arrow, such as Figure 1 As shown in the first and second figures in the figure, start the lifting winch to lift and flip the i-th target flare barrel to the vertical direction, where i is a positive integer.

[0064] Step 3, follow the arrows, such as Figure 1 As shown in the third figure, the lower barrel lifting ear of the i-th section flare barrel is used as the lifting point, and the i-th section flare barrel is lifted by a lifting winch. The i-th section flare barrel slides along the inner track of the flare tower to a preset position, and the i-th section flare barrel is fixed.

[0065] Step 4, installing the flip lug 100 on the top flange end of the flare barrel of the i-1th target section.

[0066] Step 5: Use the flip lug 100 as the hanging point (follow the arrow, as shown in the figure). Figure 1 As shown in the fourth figure in the figure), start the truck crane to flip the target flare barrel of the i-1 section from 0° to 90° (as shown in the arrow, as shown in the figure below). Figure 1 As shown in the fifth figure in the figure, the target flare barrel of the i-1th section is located directly below the target flare barrel of the i-th section.

[0067] Step 6, follow the arrows, as Figure 1 As shown in the sixth figure, the target flare barrel of the i-th section is connected with the target flare barrel of the i-1-th section.

[0068] Repeat the above steps, that is, repeat steps 2-6, to complete the installation of the flare barrels of other programs.

[0069] In step 2, the upper body lifting lug of the target flare barrel of section i is used as the lifting point, and the hoisting winch is started to lift and flip the target flare barrel of section i to a vertical direction, which specifically includes:

[0070] 201.Use the upper body lifting lug of the target flare barrel of section i as the lifting point, and connect the wire rope of the lifting winch to the lifting point;

[0071] 202. Start the hoisting winch to hoist and flip the i-th target flare barrel to a vertical direction;

[0072] 203. Remove the connection between the flip base and the bottom flange of the flare barrel of the target section i.

[0073] In step 3, the lower body lifting lug of the i-th target flare barrel is used as a lifting point, the hoisting winch is hoisted and lifted to a preset position, and the i-th target flare barrel is fixed, which specifically includes:

[0074] The i-th flare barrel is hoisted by hoisting winch using the lower body lifting ear of the i-th flare barrel as the lifting point. The i-th flare barrel is lifted along the track on the flare tower to a position 1000mm away from the top flange of the i-1-th flare barrel, and the i-th flare barrel is fixed.

[0075] The above-mentioned flip lifting ear 100 includes a fan-shaped annular base plate 101, on which a plurality of bolt holes are opened according to the specifications of the flare barrel flange. Figure 4 There are four bolt holes in the middle, and the two bolt holes on the side are used to fix the flip ear 100 to the flange end face of the flare barrel. Figure 3 The two bolt holes in the middle are used to install the clamp, and the clamp is used to connect the wire rope, which is wound on the lifting winch.

[0076] See also Figure 4 Two parallel and opposite rib plates 102 are fixed (such as welded) on one of the plate surfaces of the fan ring substrate 101 , and an ear plate 103 is fixed between the two rib plates 102 , and the ear plate 103 is perpendicular to the fan ring substrate 101 .

[0077] After installing a certain target flare barrel, the flip lug 100 on the target flare barrel can be removed and then installed on the next target flare barrel. In other words, the flip lug 100 is detachable and reusable.

[0078] Next, we will take i=7, that is, a seven-section flare as an example to explain the installation process of the flare barrel:

[0079] (1) After the flare barrel is transported to the installation location, the flare head is connected to the auxiliary facilities (auxiliary pipelines, control system) of the flare barrel of Section 7. The bottom flange of the flare barrel of Section 7 is bolted to the flip base. The upper barrel lifting lug of the flare barrel of Section 7 is connected by a lifting winch. Figure 1 As shown in the first and second figures.

[0080] (2) Use the lifting pulley to slowly turn over the 7th target flare barrel, as shown by the arrow. Figure 1 As shown in the second picture.

[0081] (3) After the 7th section flare barrel is turned to the vertical position, use the lifting winch to connect the lower barrel lifting lug of the 7th section flare barrel, slowly lift the 7th section flare barrel along the track until it is lifted to 1000mm from the top flange installation position of the 6th section flare barrel, and use the lifting winch to fix the 7th section flare barrel to prevent it from falling. Follow the arrows, such as Figure 1 As shown in the third picture.

[0082] (4) The top flange of the 6th section flare barrel is connected to the flip lug 100. Use a truck crane (selected according to the weight of the flip barrel, lifting radius and height) to flip the 6th section flare barrel from 0° to the 90° installation position, then slowly lower the 7th section flare barrel and connect the two sections of the barrel and the flange bolts of the attached pipeline.

[0083] (5) Remove the lifting pulley block from the lower lifting lug of the 7th section flare barrel, connect it to the lower lifting lug of the 6th section flare barrel, and slowly lift the 6th section flare barrel.

[0084] (6) Using a truck crane in conjunction with a hoisting winch, repeat the flipping and lifting procedures to continue installing the target cylinder from Section 5 to Section 1 until all flare cylinders are installed.

[0085] (7) After the flare barrel is installed, fix the connecting bolts between the flare barrel flip platform and the fixed platform, and fix the flare track baffle to keep it in a closed state.

[0086] Second implementation method:

[0087] This embodiment provides a method for removing the flare barrel. Figure 2 ,include:

[0088] Step a, follow the arrows, such as Figure 2 As shown in the first figure, the lower body lifting ear of the second section flare barrel is used as the lifting point, and the wire rope in the lifting point is wound around the lifting winch through the lifting pulley block in the flare tower.

[0089] Step b, connecting the bottom flange of the first section flare barrel to the flip base.

[0090] Step c, start the hoisting winch to lift the second section and above target flare barrel, isolate the first section target flare barrel, even if the second section and above target flare barrel are separated from the first section target flare barrel, follow the arrow, such as Figure 2 As shown in the second picture.

[0091] Step d, installing the flip lug 100 on the top flange end of the first section flare barrel.

[0092] Step e, using the flip lug 100 as the lifting point, start the truck crane to flip the first section target torch barrel from the vertical direction to the horizontal direction, as shown in the arrow. Figure 2 As shown in the second and third figures.

[0093] Step f, removing the connection between the flip base and the bottom flange of the first section flare barrel;

[0094] Step g, use a truck crane to lift the first section target flare barrel to the placement position.

[0095] Step h, follow the arrows, as Figure 2 As shown in the fourth figure, lower the second section and the target flare barrel above it until the bottom of the barrel contacts the flip base.

[0096] Step j, follow the arrows, such as Figure 2 As shown in the fifth figure, the bottom flange of the second section flare barrel is connected to the flip base.

[0097] Repeat the above steps to complete the removal of the flare barrels of other targets.

[0098] The removal process of the last section of the flare barrel with the flare head includes:

[0099] Take the upper barrel lifting ear of the last section of the flare barrel with the flare head as the lifting point, and wrap the wire rope in the lifting point around the lifting winch via the lifting pulley block in the flare tower. Connect the bottom flange of the last section of the flare barrel with the flare head to the flip base. Start the lifting winch to flip the last section of the flare barrel with the flare head from the vertical direction to the horizontal direction. Remove the whole last section of the flare barrel with the flare head and lift it to the placement position.

[0100] Next, we will take i=7, that is, a flare with seven sections, as an example to explain the process of removing the flare barrel:

[0101] 1) Connect the lifting pulley block to the lower body lifting lug of the second section flare barrel, as shown in the arrow. Figure 2 As shown in the first picture.

[0102] 2) Connect the first section flare barrel base flange and the flip platform bolts to keep the lifting pulley group in a tensioned state, loosen the connecting bolts of the first section flare barrel, the second section flare barrel and ancillary facilities (ancillary pipelines, control systems), and use the lifting pulley group to lift the part above the second section flare barrel. After the lifting height reaches 1000mm, install the flip lifting lug 100.

[0103] 3) Use a truck crane to connect the flip lug 100 at the top flange of the first section flare barrel, and use the truck crane to flip the first section flare barrel. The first section flare barrel is detached from the flare track and flipped from the vertical direction to the horizontal direction. Loosen the connecting bolts between the flip platform and the bottom of the first section flare barrel, flip the flip platform to the horizontal direction, and follow the arrows, as shown in the figure. Figure 2 As shown in the second and third figures.

[0104] 4) After the first section flare barrel is turned over, use a truck crane to lift the first section flare barrel to the placement position.

[0105] 5) Use the lifting pulley set to slowly lower the upper part of the second-stage flare barrel to the tipping platform, connect the second-stage flare barrel base and the tipping platform with bolts, remove the lifting pulley set of the second-stage flare barrel, and connect the lifting pulley set to the bottom ear of the third-stage flare barrel.

[0106] 6) Repeat the flipping and lifting procedures to continue dismantling the target flare barrels from Sections 3 to 6.

[0107] It should be noted that the flare barrel and flare head of the seventh section are fixed by flange connection. Different from the removal method of the flare barrel of the first 6 sections, the flare barrel and flare head of the seventh section need to be removed as a whole. Use the lifting pulley block to connect to the upper barrel lifting lug of the flare barrel of the seventh section, use a 5t winch to cooperate with the flip, and flip it to a horizontal position through the flip platform at the bottom of the flare barrel. Follow the arrows, such as Figure 2 As shown in the fifth figure.

[0108] The above-mentioned flip lifting ear 100 includes a fan-shaped annular base plate 101, on which a plurality of bolt holes are opened according to the specifications of the flare barrel flange. Figure 4 There are four bolt holes in the middle, and the two bolt holes on the side are used to fix the flip ear 100 to the flange end face of the flare barrel. Figure 3 The two bolt holes in the middle are used to install the clamp, and the clamp is used to connect the wire rope, which is wound on the lifting winch.

[0109] Third embodiment:

[0110] This embodiment provides a flip lug 100, which is applied to a flare barrel installation method and a flare barrel removal method. The flip lug 100 includes a fan-shaped annular base plate 101, and a plurality of bolt holes are opened on the fan-shaped annular base plate 101 according to the specifications of the flare barrel flange. Figure 4 There are four bolt holes in the middle, and the two bolt holes on the side are used to fix the flip ear 100 to the flange end face of the flare barrel. Figure 3 The two bolt holes in the middle are used to install the clamp, and the clamp is used to connect the wire rope, which is wound on the lifting winch.

[0111] See also Figure 4 Two parallel and opposite ribs 102 are fixed (preferably welded) on one of the plate surfaces of the fan ring substrate 101 , and an ear plate 103 is fixed between the two ribs 102 , and the ear plate 103 is perpendicular to the fan ring substrate 101 .

[0112] After installing a certain target flare barrel, the flip lug 100 on the target flare barrel can be removed and then installed on the next target flare barrel. In other words, the flip lug 100 is detachable and reusable.

[0113] The selection principles of the flip lug 100 are as follows:

[0114] Lug material: Q235B.

[0115] Yield strength: σ S =225MPa. (Based on: GB / T 150-2011 "Pressure Vessel")

[0116] Allowable stress:

[0117] [σ] = 141 MPa;

[0118] [τ] = 84 MPa.

[0119] The lifting force at the lifting point is the largest at the beginning of lifting, so the strength of the lifting lug under this working condition is checked.

[0120] When calculating the strength of the lifting lug and its weld, take the comprehensive influence coefficient K = 1.35.

[0121] The strength of the flip lifting lugs is checked according to the "Design and Selection Specifications for Lifting Lugs for Chemical Equipment" (HG / T 21574-2018).

[0122] Tensile stress:

[0123] Shear stress:

[0124] In the above formulas:

[0125] F——Force on the lifting lug;

[0126] R——radius of the arc at the top of the lifting lug;

[0127] D——diameter of the eye plate hole;

[0128] δ——thickness of lug plate;

[0129] Calculation of weld strength at the root of the lifting lug:

[0130] The calculation of welds shall be in accordance with the formula (7.1.3-1) in Article 7.1.3 of the "Standard for Design of Steel Structures" (GB50017-2017).

[0131] Design value of tensile, compressive and shear strength of welds f t w =160Mpa.

[0132] When the weld is initially hoisted, the shear force and bending moment are the largest, and the bending stress and shear stress are:

[0133] Bending stress

[0134] Shear stress

[0135] The equivalent stress is

[0136] In the above formulas:

[0137] F——Force on the lifting lug;

[0138] R——radius of the arc at the top of the lifting lug;

[0139] H——height of the lifting lug plate, H=220mm;

[0140] δ——thickness of lug plate;

[0141] b——width of the root of the ear plate, b=240mm.

[0142] The welds meet the requirements.

[0143] (3) Turn over the lifting lug connecting bolt

[0144] Calculate and select the flip lifting ear connecting bolts based on the flare barrel flange specifications, weight and flip force changes.

[0145] The present invention uses a crane instead of a flip pulley block to flip the flare barrel, eliminates the traditional flip pulley block and flip winch, reduces the weight of the flare barrel, optimizes the flare tower structure, improves construction efficiency, reduces construction costs, and reduces construction risks.

[0146] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A method for installing a flare barrel, characterized in that: include: Transport all target flare barrels to designated locations; Taking the upper body lifting lug of the i-th target flare barrel as the lifting point, start the hoisting winch to lift and flip the i-th target flare barrel to a vertical direction, where i is a positive integer; Using the lower barrel lifting lug of the i-th section flare barrel as a lifting point, the lifting winch lifts the i-th section flare barrel and slides it along the track inside the flare tower to a preset position, thereby fixing the i-th section flare barrel; Install the flip lug on the top flange end of the flare barrel of the i-1 section; Using the flip lifting lug as a lifting point, start the truck crane to flip the i-1th target flare barrel from 0° to 90°, so that the i-1th target flare barrel is located directly below the i-th target flare barrel; Connecting the i-th target flare barrel body with the i-1-th target flare barrel body; Repeat the above steps to complete the installation of the flare barrels of other programs.

2. The method for installing a flare barrel according to claim 1, characterized in that: After transporting all target flare barrels to the designated location, the following steps are also included: Take the flare head and install it on the top of the flare barrel of the i-th target; The i-th section target flare barrel body with the flare head is placed horizontally, and the bottom flange of the i-th section target flare barrel body with the flare head is connected to the flip base.

3. The method for installing a flare barrel as claimed in claim 2, characterized in that: Using the upper barrel lifting lug of the i-th target flare barrel as a lifting point, starting the lifting winch to lift and flip the i-th target flare barrel to a vertical direction, specifically including: The upper barrel lifting lug of the i-th target flare barrel is used as a lifting point, and the wire rope of the lifting winch is connected to the lifting point; Starting the hoisting winch to hoist and flip the i-th target flare barrel to a vertical direction; Remove the connection between the flip base and the bottom flange of the flare barrel of the i-th target.

4. The method for installing a flare barrel as claimed in claim 1 or 2, characterized in that: Using the lower body lifting lug of the i-th target flare barrel as a lifting point, the hoisting winch hoists and lifts the i-th target flare barrel to a preset position, and fixes the i-th target flare barrel, specifically including: Using the lower body lifting ear of the i-th flare barrel as the lifting point, the lifting winch lifts the i-th flare barrel, and the i-th flare barrel is lifted along the track on the flare tower to a position 1000mm away from the top flange of the i-1-th flare barrel, and the i-th flare barrel is fixed.

5. The method for installing a flare barrel according to claim 1, characterized in that: The flip lifting ear comprises a fan-shaped annular base plate (101), and a plurality of bolt holes are provided on the fan-shaped annular base plate (101); Two parallel and opposite rib plates (102) are fixed on one of the plate surfaces of the fan-shaped annular base plate (101), and an ear plate (103) is fixed between the two rib plates (102), wherein the ear plate (103) is perpendicular to the fan-shaped annular base plate (101).

6. A method for dismantling a flare barrel, characterized in that: include: The lower body lifting lug of the second section target flare barrel is used as a lifting point, and the steel wire rope in the lifting point is wound around the lifting winch through the lifting pulley block in the flare stack; Connect the bottom flange of the first section flare barrel to the flip base; Starting the lifting winch to lift the second section and above target flare barrels, isolating the first section target flare barrel; Install a flip lug on the top flange end of the flare barrel of the first section; Using the flip lifting lug as a lifting point, start the truck crane to flip the first-stage flare barrel from a vertical direction to a horizontal direction; Remove the connection between the flip base and the bottom flange of the flare barrel of the first section; The truck crane hoists the flare barrel of the first target to a placement position; Lower the second section and the target flare barrel above it until the bottom of the barrel contacts the flip base; Connecting the bottom flange of the second-stage flare barrel to the flip base; Repeat the above steps to complete the removal of the flare barrels of other targets.

7. The method for dismantling a flare barrel as claimed in claim 6, characterized in that: The removal process of the last section of the flare barrel with the flare head includes: The upper barrel lifting ear of the last section of the flare barrel with the flare head is used as the lifting point. The wire rope in the lifting point is wound around the lifting winch via the lifting pulley block in the flare tower. The bottom flange of the last section of the flare barrel with the flare head is connected to the flip base. The lifting winch is started to flip the last section of the flare barrel with the flare head from the vertical direction to the horizontal direction. The last section of the flare barrel with the flare head is completely dismantled and lifted to the placement position.

8. The method for dismantling a flare barrel as claimed in claim 6 or 7, characterized in that: The flip lifting ear comprises a fan-shaped annular base plate (101), and a plurality of bolt holes are provided on the fan-shaped annular base plate (101); Two parallel and opposite rib plates (102) are fixed on one of the plate surfaces of the fan-shaped annular base plate (101), and an ear plate (103) is fixed between the two rib plates (102), wherein the ear plate (103) is perpendicular to the fan-shaped annular base plate (101).

9. A flip lifting lug, used in a flare barrel installation method and a flare barrel removal method, comprising a fan-shaped annular base plate (101), on which a plurality of bolt holes are opened; Two parallel and opposite rib plates (102) are fixed on one of the plate surfaces of the fan-shaped annular base plate (101), and an ear plate (103) is fixed between the two rib plates (102), wherein the ear plate (103) is perpendicular to the fan-shaped annular base plate (101).

Images