Method for installing large-scale fluid lifting skid

Abstract

The application provides a large-scale fluid lifting sliding installation method, which comprises the following steps: S1. Dividing a large-scale fluid into n fluid segments along the length direction of the large-scale fluid, n is greater than or equal to 5, and setting a lifting bracket; S2. Setting a sliding device in a channel below an installation position, and setting a lifting device on the sliding device; S3. Assembling a first part of the fluid segments on the sliding device, the first part comprises the fluid segments provided with the lifting bracket; connecting the lifting device with the lifting bracket on the first part, and lifting the first part to a set height; S4. Assembling a second part of the fluid segments on the sliding device, and sliding the second part to below the first part; lowering the first part to abut with the second part, and forming the large-scale fluid; S5. Reconnecting the lifting device with the lifting bracket on the abutted large-scale fluid, and sliding the large-scale fluid to the installation position through the sliding device. The application can realize the installation of the large-scale fluid in a narrow space.

Description

Technical Field

[0001] This application relates to the field of industrial equipment installation technology, and in particular to a method for lifting and sliding installation of extra-large fluid-driven equipment. Background Technology

[0002] Some recirculation piping systems with low airflow velocities are constructed using concrete to reduce construction costs due to lower impact loads. However, core components used for airflow testing and airflow redirection require higher precision and toughness, thus necessitating the use of steel structures. These recirculation piping systems contain four redirection sections to achieve airflow redirection. The exterior of each redirection section is a concrete structure serving as the airflow channel, while the interior is equipped with a guide fluid to facilitate airflow redirection.

[0003] With the continuous improvement of my country's industrialization level, reflux pipeline equipment is gradually developing towards larger size and higher parameters. In particular, some reflux pipeline equipment with low airflow velocity can have cross-sectional dimensions (width and height) of 50×50m or more. The height of the duct installed in the turning section can reach 45m or more, and the height-to-thickness ratio can reach 55 or more. These extra-large ducts together with the extra-large concrete pipes outside constitute extra-large turning sections.

[0004] like Figure 1 As shown: The extra-large concrete pipe 11 includes an airflow inlet end and an airflow outlet end, with multiple extra-large drainage pipes 12 installed in the middle, employing a shear wall structure. Due to the height of the shear wall, to ensure the stability of the overall structure during construction, the top slab must be completed to form a whole before the extra-large drainage pipes 12 can be installed. Figure 2 As shown: The extra-large drainage fluid 12 is crescent-shaped, including a head edge 122, a tail edge 123, and a drainage cavity 121. The head edge 122 and the tail edge 123 are the airflow front and airflow outlet surfaces, respectively, forming an airflow profile through a closed structure. The drainage cavity 121 is a steel frame structure used to install noise reduction devices to achieve the purpose of noise reduction.

[0005] The existing construction process for the turning section is as follows: after the shear wall construction of the concrete pipeline is completed, the top slab is not constructed immediately. The ductwork is manufactured in the factory and transported to the concrete pipeline, where it is lifted and installed using a truck crane (the lifting point is set on top of the ductwork). The top slab is constructed after all the ductwork is installed. However, for extra-large turning sections, the extra-large ductwork can only be installed after the extra-large concrete pipeline construction is completed. When installing extra-large ductwork in such a confined space, the lifting machinery will interfere with the top slab, making it impossible to lift the extra-large ductwork to the installation position.

[0006] If unconventional lifting methods are used to install extra-large drainage systems, the lifting points cannot be set on the top of the extra-large drainage system (the lifting equipment and lifting tools will interfere with the top plate). The lifting points can only be set on the side structure of the extra-large drainage system. However, the drainage cavity on the side structure cannot be used as a lifting point because noise reduction devices need to be installed (the noise reduction devices will be damaged when the lifting lugs are cut at the end). At the same time, the extra-large drainage system is an irregularly shaped structure, and setting lifting points on the side structure will cause the extra-large drainage system to overturn.

[0007] Therefore, it is necessary to develop a method for installing ultra-large-scale fluid diverters to solve the aforementioned problems. Summary of the Invention

[0008] To address the problem of limited construction space preventing the installation of existing extra-large drainage systems, this application provides a lifting and sliding installation method for extra-large drainage systems.

[0009] The technical solution provided in this application for a method of lifting and sliding installation of extra-large fluid-guiding systems is as follows: A method for lifting and sliding installation of extra-large fluid-draining structures includes the following steps: S1. Divide the extra-large drainage fluid longitudinally into n drainage fluid segments for fabrication, where n≥5; set lifting brackets on the head edge and tail edge of the drainage fluid in the 2nd, |n / 2|th, and |n / 2|+1th drainage fluid segments, respectively; S2. A sliding device is arranged inside the extra-large concrete pipe, and a lifting device is assembled on the sliding device. The lifting device includes a lifting device, a first lifting beam, a lifting steel frame, a guide steel column, a second lifting beam, and a third lifting beam. The second and third lifting beams have the same structure, and the second lifting beam is located directly above the third lifting beam. S3. Using lifting machinery, the first |n / 2| fluid diversion segments are assembled on the sliding shoe of the sliding device to form the first unit. The lifting device is slid towards the first unit. The second lifting beam is connected to the lifting bracket of the second fluid diversion segment. The third lifting beam is connected to the lifting bracket of the |n / 2| fluid diversion segment. The lifting device is used to lift the first unit to a set height. S4. Using lifting machinery, the remaining drainage fluid is divided into sections and assembled on the sliding shoe of the sliding device to form a second unit. The second unit is slid to directly below the first unit. The first unit is lowered and brought into contact with the second unit using a lifting device. The first unit and the second unit are then assembled to form an extra-large drainage fluid. S5. Move the third lifting beam downwards to connect with the lifting bracket of the |n / 2|+1th drainage section, move the second lifting beam downwards to connect with the lifting bracket of the |n / 2|th drainage section, and slide the lifting device and the extra-large drainage device together until the extra-large drainage device moves to the installation position, thus completing the installation of the extra-large drainage device.

[0010] Furthermore, the lifting bracket is located on the concave surface of the extra-large drainage fluid, and the lifting bracket includes a first steel beam and a second steel beam. The first steel beam is perpendicular to the extra-large drainage fluid, and the second steel beam is connected to the first steel beam. The axes of the two second steel beams on the fluid diversion segment are on the same straight line. The axes of the second steel beam, the second lifting beam, and the third lifting beam are parallel to each other. The distance between the two second steel beams on the fluid diversion segment is equal to the length of the second lifting beam.

[0011] Furthermore, the sliding device includes a hydraulic crawler, a sliding shoe, and at least three steel rails located in the installation area of ​​the extra-large concrete pipe for drawing out the extra-large fluid, with multiple steel rails arranged in parallel at intervals. The hydraulic crawler and sliding shoe are arranged on the rails, and the hydraulic crawler is connected to the sliding shoe; the front and rear positions of the hydraulic crawler and sliding shoe on each rail are the same.

[0012] Furthermore, the lifting steel frame is a lattice column, and the first lifting beam is set at the top of the lifting steel frame; The lifting device is a through-type hydraulic lifting device, located at the end of the first lifting beam; The guide steel column is set longitudinally along the outer wall of the lifting steel frame; the second lifting beam is perpendicular to the guide steel column, and the two ends of the second lifting beam are nested with the guide steel column, and the second lifting beam can move up and down along the guide steel column; The third lifting beam is perpendicular to the guide steel column, and its two ends are nested with the guide steel column. The third lifting beam can move up and down along the guide steel column.

[0013] Furthermore, the lifting device is mounted on the sliding shoe of the sliding device; The hydraulic crawler is connected to an external hydraulic pump source system and a synchronous sliding control system to enable the sliding shoe and the lifting device on the sliding shoe to slide together along the rail, and to enable the sliding shoe and the extra-large duct on the sliding shoe to slide together along the rail. The lifting device includes steel strands, which are connected to the second lifting beam. The lifting device is connected to an external hydraulic pump source system and a synchronous lifting control system to enable the second lifting beam and the extra-large duct connected to the second lifting beam to move up and down along the guide steel column.

[0014] Furthermore, in step S1, the extra-large drainage fluid is divided into the first drainage fluid segment, the second drainage fluid segment, ... the nth drainage fluid segment in order from top to bottom, and the n drainage fluid segments have the same length; the first drainage fluid segment is the first drainage fluid segment, the second to |n-1| drainage fluid segments are the second drainage fluid segments, and the nth drainage fluid segment is the third drainage fluid segment.

[0015] Furthermore, a flange is provided at the bottom of the first segment of the drainage fluid, flanges are provided at the top and bottom of the second segment of the drainage fluid, and a flange is provided at the top of the third segment of the drainage fluid; The two flanges of the two adjacent fluid-guiding sections that come into contact are provided with through bolt holes and through locating pin holes.

[0016] Furthermore, after the drainage fluid segments are manufactured, the n drainage fluid segments are pre-assembled into an extra-large drainage fluid. After the pre-assembly into an extra-large drainage fluid, the adjacent drainage fluid segments are bolted together, and finally, positioning pin holes are made on the adjacent drainage fluid segments.

[0017] Furthermore, in steps S3 and S4, when the fluid guide segments are assembled on the sliding shoes of the sliding device, the misalignment between adjacent fluid guide segments is first adjusted to ensure that the bolt holes of adjacent fluid guide segments can be connected by bolts; then the relative position between adjacent fluid guide segments is adjusted to ensure that the positioning pin holes of adjacent fluid guide segments can be connected by positioning pins; finally, the bolts are tightened.

[0018] Furthermore, the second lifting beam and the lifting bracket are bolted together, and the third lifting beam and the lifting bracket are bolted together; after the extra-large drainage system is installed, the lifting bracket is removed.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. This application designs the extra-large drainage system into multiple drainage sections and combines three different installation processes: section hoisting, sliding, and lifting. The sections are first assembled inside the concrete pipe, and then closed using sliding and lifting devices. This perfectly solves the problem of interference between the extra-large drainage system and the completed concrete pipe top slab when using conventional lifting machinery, which makes installation impossible. This enables the installation of extra-large drainage systems in confined spaces. 2. This application develops a lifting process for extra-large drainage fluids. Addressing the issue of noise reduction devices within the drainage fluid cavity preventing the installation of lifting points, the process innovatively places lifting brackets at the head and tail edges of the drainage fluid. By using two lifting beams (the second and third lifting beams) to connect the extra-large drainage fluid at four points before lifting, the second lifting beam acts as a lifting spreader to ensure vertical force distribution, while the third lifting beam restrains the drainage fluid on the lifting steel frame. This effectively solves the safety hazard of easy tipping during side lifting of irregularly shaped structures, achieving safe installation of extra-large drainage fluids. 3. This application designs a flange connection structure for extra-large fluid-guiding segments, avoiding damage to sensitive noise reduction devices caused by heat input and spatter from on-site welding operations; at the same time, in conjunction with the factory pre-assembly and matching positioning pin holes process, on-site assembly only requires alignment with positioning pins and tightening bolts, which greatly eliminates the cumulative error of assembling extra-large structural segments and ensures docking accuracy. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the steering section in the background technology; Figure 2 This is a schematic diagram of the structure of an extra-large fluid in the background art; Figure 3 A schematic diagram of the segmented structure of the extra-large fluid guide provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the second segment of the guide fluid provided in an embodiment of this application; Figure 5 A cross-sectional view of the fluid guide segment provided in an embodiment of this application; Figure 6 This is a schematic diagram of the lifting bracket provided in an embodiment of this application; Figure 7 This is a schematic diagram of the lifting device provided in the embodiments of this application; Figure 8 This is a schematic diagram of the sliding device provided in the embodiments of this application; Figure 9 A schematic diagram of the process of installing an extra-large fluid guide in step S1 provided in an embodiment of this application; Figure 10 A schematic diagram of the process of installing the extra-large fluid guide provided in the embodiments of this application; Figure 11 A schematic diagram of the process of installing the extra-large fluid guide provided in the embodiments of this application; Figure 12 A schematic diagram of the process of installing the extra-large fluid guide in step S4 provided in the embodiments of this application; Figure 13 A schematic diagram of the process of installing the extra-large fluid guide in step S5 provided in the embodiments of this application; Figure 14 for Figure 10 A top view of a medium-to-large-scale fluid extraction installation.

[0022] Figure label: 1. Turning section; 11. Extra-large concrete pipe; 12. Extra-large drainage pipe; 121. Drainage cavity; 122. Drainage head edge; 123. Drainage tail edge; 124. First section of drainage pipe; 125. Second section of drainage pipe; 126. Third section of drainage pipe; 127. Bolt hole; 128. Locating pin hole; 2. Lifting bracket; 21. First steel beam; 22. Second steel beam; 3. Lifting device; 31. Lifter; 32. First lifting beam; 33. Lifting steel frame; 34. Guide steel column; 35. Second lifting beam; 36. Third lifting beam; 4. Sliding device; 41. Hydraulic crawler; 42. Slipper; 43. Rail. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] The subject matter addressed in the embodiments of this application is as follows: Figures 1-2 As shown: Figure 1 The diagram shows the structure of the turning section 1, which includes an extra-large concrete pipe 11 and an extra-large duct 12. The extra-large concrete pipe 11 includes an air inlet end and an air outlet end, and the extra-large duct 12 is installed in the middle. It adopts a shear wall structure. Figure 2 This is a schematic diagram of the extra-large diversion pipe 12. The extra-large diversion pipe 12 is crescent-shaped, including a head edge 122, a tail edge 123, and a cavity 121. The head edge 122 and tail edge 123 are the airflow facing and exiting surfaces, respectively, forming a closed airflow profile. The cavity 121 is a steel frame structure used to install noise reduction devices for sound attenuation. The extra-large diversion pipe 12 is 45m high with a height-to-thickness ratio of 55. Because the cross-sectional dimensions (width and height) of the extra-large concrete pipe 11 reach 50×50m, and the shear wall is high, to ensure the stability of the overall structure during construction, the top slab must be completed and the structure integrated before the extra-large diversion pipe 12 can be installed.

[0025] After the construction of the top slab of the extra-large concrete pipe 11 is completed, when installing the extra-large drainage pipe 12, the lifting machinery will interfere with the top slab, making it impossible to lift the extra-large drainage pipe 12 to the installation position. Therefore, it is necessary to use unconventional lifting methods to install the extra-large drainage pipe 12 to solve the problem of not being able to install the extra-large drainage pipe 12 in a narrow space.

[0026] In view of the above, this application is hereby made.

[0027] Reference Figures 3-14 This application discloses a method for lifting and sliding installation of an extra-large fluid-guiding device, which includes the following steps: S1. The extra-large drainage fluid 12 is divided into n drainage fluid segments along the longitudinal direction for fabrication, where n≥5; lifting brackets 2 are set on the head edge 122 and tail edge 123 of the drainage fluid in the 2nd, |n / 2|th, and |n / 2|+1th drainage fluid segments, respectively. S2. A sliding device 4 is arranged inside the extra-large concrete pipe 11, and a lifting device 3 is assembled on the sliding device 4. The lifting device 3 includes a lifting device 31, a first lifting beam 32, a lifting steel frame 33, a guide steel column 34, a second lifting beam 35, and a third lifting beam 36. The second lifting beam 35 and the third lifting beam 36 have the same structure, and the second lifting beam 35 is located directly above the third lifting beam 36. S3. Using lifting machinery, the first |n / 2| fluid diversion segments are assembled on the sliding shoe 42 of the sliding device 4 to form the first unit. The lifting device 3 is slid towards the first unit. The second lifting beam 35 is connected to the lifting bracket 2 of the second fluid diversion segment. The third lifting beam 36 is connected to the lifting bracket 2 of the |n / 2| fluid diversion segment. The lifting device 3 is used to lift the first unit to the set height. S4. Using lifting machinery, the remaining drainage fluid is divided into sections and assembled on the sliding shoe 42 of the sliding device 4 to form a second unit. The second unit is slid to the bottom of the first unit. The lifting device 3 is used to lower the first unit and bring it into contact with the second unit. The first unit and the second unit are assembled to form an extra-large drainage fluid 12. S5. Move the third lifting beam 36 downwards to connect with the lifting bracket 2 of the |n / 2|+1th fluid diversion segment, move the second lifting beam 35 downwards to connect with the lifting bracket 2 of the |n / 2|th fluid diversion segment, and slide the lifting device 3 and the extra-large fluid diversion 12 together until the extra-large fluid diversion 12 is moved to the installation position, thus completing the installation of the extra-large fluid diversion 12.

[0028] Specifically, due to the excessive height (e.g., on the order of 45m) and height-to-thickness ratio of the extra-large diverter, there is a risk of overall plastic deformation during hoisting. Therefore, this embodiment divides it into at least five equal segments. For example... Figure 3As shown, the extra-large drainage fluid 12 is divided into five segments from top to bottom: the first segment, the second segment, the third segment, the fourth segment, and the fifth segment, all of which are of equal length. The first segment is called the first drainage segment 124, the second, third, and fourth segments are called the second drainage segment 125, and the fifth segment is called the third drainage segment 126.

[0029] like Figure 4 As shown, a flange is installed at the bottom of the first section 124 of the fluid guide, flanges are installed at the top and bottom of the second section 125 of the fluid guide, and a flange is installed at the top of the third section 126 of the fluid guide. The flanges are crescent-shaped steel plates. Through bolt holes 127 and through locating pin holes 128 are provided on the two flanges of two adjacent fluid guide sections that are in contact with each other.

[0030] Five fluid guide segments are manufactured in the factory. During the manufacturing process, lifting brackets 2 are welded to the head edge 122 and tail edge 123 of the second, third, and fourth fluid guide segments, respectively. When manufacturing the fluid guide segments, bolt holes 127 are made on the flanges, but locating pin holes 128 are not made.

[0031] like Figure 5 , Figure 6 As shown, the lifting bracket 2 is set on the concave surface of the extra-large drainage fluid 12. The lifting bracket 2 includes a first steel beam 21 and a second steel beam 22. The first steel beam 21 is perpendicular to the extra-large drainage fluid 12, and the second steel beam 22 is connected to the first steel beam 21. The first steel beam 21 is a square tube and the second steel beam 22 is a square tube.

[0032] After the five drainage sections are fabricated, they are pre-assembled into an extra-large drainage section 12. Then, adjacent drainage sections are bolted together, and finally, positioning pin holes 128 are made on the flanges of adjacent drainage sections.

[0033] The extra-large drainage system 12 is 45m tall, which is too high to be fabricated as a whole in the factory and transported to the site. Even if it were fabricated as a whole on-site, installation would be impossible due to the risk of plastic deformation during hoisting. Therefore, the extra-large drainage system 12 will be divided into multiple drainage sections, each fabricated separately in the factory before being transported to the site for installation. Considering transportation costs, hoisting risks, and installation difficulty, the number of sections for the extra-large drainage system 12 will be set to at least 5.

[0034] A noise reduction device is installed in the drainage cavity 121 of the extra-large drainage fluid 12. This noise reduction device is extremely sensitive to temperature. After the drainage fluid sections are installed, they need to be welded together as a whole. The heat input and welding spatter during the welding process can damage the noise reduction device. Therefore, bolted connections are considered between the drainage fluid sections. Flanges are installed on the contact surfaces of adjacent drainage fluid sections. By bolting adjacent drainage fluid sections using flanges, hot work can be avoided, thus solving the problem of easy damage to the noise reduction device.

[0035] Furthermore, the extra-large drainage fluid 12 has a high structural height, and cumulative errors are easily generated during the segmented assembly process, resulting in low assembly accuracy. Therefore, the completed drainage fluid segments are pre-assembled. During the pre-assembly process, the assembly accuracy of the drainage fluid segments is adjusted to meet the requirements before the positioning pin holes 128 are set. This allows the positioning pins to be inserted into the corresponding positioning pin holes 128 during the installation of the extra-large drainage fluid 12, ensuring the assembly accuracy of the drainage fluid segments.

[0036] After the preliminary preparations are completed, the pre-assembled fluid diversion sections are transported to the extra-large concrete pipe 11 for installation.

[0037] like Figure 7 As shown, a sliding device 4 is arranged inside the extra-large concrete pipe 11, and a lifting device 3 is assembled on the sliding device 4. The lifting device 3 includes a lifter 31, a first lifting beam 32, a lifting steel frame 33, a guide steel column 34, a second lifting beam 35, and a third lifting beam 36. The second lifting beam 35 and the third lifting beam 36 have the same structure and dimensions. The axes of the second steel beam 22, the second lifting beam 35, and the third lifting beam 36 are parallel to each other, and the second lifting beam 35 is located directly above the third lifting beam 36.

[0038] like Figure 14 As shown, the axes of the two second steel beams 22 on the fluid diversion segment are on the same straight line, the distance between the two second steel beams 22 on the fluid diversion segment is the length of the second lifting beam 35, and the distance between the two second steel beams 22 on the fluid diversion segment is also the length of the third lifting beam 36.

[0039] like Figure 8As shown, the sliding device 4 includes a hydraulic crawler 41, a sliding shoe 42, and three steel rails 43. The steel rails 43 are located in the installation area of ​​the extra-large flow 12 inside the extra-large concrete pipe 11, and the three steel rails 43 are arranged in parallel and spaced apart. The hydraulic crawler 41 and the sliding shoe 42 are arranged on the steel rails 43, and the hydraulic crawler 41 is connected to the sliding shoe 42. The front and rear positions of the hydraulic crawler 41 and the sliding shoe 42 on each steel rail 43 are the same. Along the longitudinal direction of the steel rail 43, each steel rail 43 is arranged with one hydraulic crawler 41, one sliding shoe 42, one hydraulic crawler 41, one sliding shoe 42, and one hydraulic crawler 41 in sequence.

[0040] Furthermore, the lifting steel frame 33 is a lattice column; the first lifting beam 32 is set at the top of the lifting steel frame 33, and the first lifting beam 32 is composed of two I-beams of the same type; the lifting device 31 is a through-type hydraulic lifting device, and the lifting device 31 is located at the end of the first lifting beam 32; the guide steel column 34 is longitudinally arranged along the outer wall surface of the lifting steel frame 33; the second lifting beam 35 is a rectangular tube, and the third lifting beam 36 is a rectangular tube; the second lifting beam 35 is perpendicular to the guide steel column 34, and the two ends of the second lifting beam 35 are nested with the guide steel column 34, and the second lifting beam 35 can move up and down along the guide steel column 34; the third lifting beam 36 is perpendicular to the guide steel column 34, and the two ends of the third lifting beam 36 are nested with the guide steel column 34, and the third lifting beam 36 can move up and down along the guide steel column 34.

[0041] After the sliding device 4 and the lifting device 3 are arranged, the extra-large drainage system 12 can be installed. Figures 9 to 14 As shown, a truck crane is used to assemble the third, second, and first fluid-guiding segments on the sliding shoe 42 of the sliding device 4 to form the first unit. The lifting device 3 is slid towards the first unit, the second lifting beam 35 is connected to the lifting bracket 2 of the second fluid-guiding segment, and the third lifting beam 36 is connected to the lifting bracket 2 of the third fluid-guiding segment. The lifting device 3 is used to lift the first unit to a certain height, so that the vertical height between the third fluid-guiding segment and the sliding shoe 42 is greater than twice the length of the fluid-guiding segment.

[0042] The remaining first and second drainage sections are assembled on the sliding shoe 42 of the sliding device 4 using a truck crane to form the second unit. The second unit is then slid to a position directly below the first unit. The first unit is lowered and brought into contact with the second unit using the lifting device 3. The first and second units are then assembled to form the extra-large drainage system 12.

[0043] The third lifting beam 36 is moved downwards and connected to the lifting bracket 2 of the fourth fluid diversion segment. The second lifting beam 35 is moved downwards and connected to the lifting bracket 2 of the third fluid diversion segment. The lifting device 3 and the extra-large fluid diversion 12 are slid together until the extra-large fluid diversion 12 is moved to the installation position, thus completing the installation of the extra-large fluid diversion 12.

[0044] Furthermore, the lifting device 3 is mounted on the sliding shoe 42 of the sliding device 4. The hydraulic crawler 41 is connected to an external hydraulic pump source system and a synchronous sliding control system, which enables the sliding shoe 42 and the lifting device 3 on the sliding shoe 42 to slide together along the rail 43, and enables the sliding shoe 42 and the extra-large duct 12 on the sliding shoe 42 to slide together along the rail 43. The lifting device 31 includes a steel strand, which can be connected to the second lifting beam 35. The lifting device 31 is connected to an external hydraulic pump source system and a synchronous lifting control system, which enables the second lifting beam 35 and the extra-large duct 12 connected to the second lifting beam 35 to reciprocate up and down along the guide steel column 34.

[0045] Furthermore, when the fluid-guiding segments are assembled on the sliding shoe 42 of the sliding device 4, the misalignment between adjacent fluid-guiding segments is first adjusted to ensure that the bolt holes 127 of adjacent fluid-guiding segments can be connected by bolts. Then, the relative positions between adjacent fluid-guiding segments are adjusted to ensure that the positioning pin holes 128 of adjacent fluid-guiding segments can be connected by positioning pins. Finally, the bolts are tightened.

[0046] Furthermore, the second lifting beam 35 is bolted to the lifting bracket 2, and the third lifting beam 36 is bolted to the lifting bracket 2; after the extra-large drainage fluid 12 is installed, the lifting bracket 2 is cut off.

[0047] When installing the extra-large diversion pipe 12 inside the extra-large concrete pipe 11, the limited working space presents a challenge. Using lifting machinery for segmented hoisting of the extra-large diversion pipe 12 is not feasible, necessitating the use of unconventional hoisting methods. If a jacking process is employed, two problems arise: first, the extra-large diversion pipe 12 is 45m high; after assembling multiple diversion pipe segments, the structural height becomes excessive, posing significant safety and overturning risks during jacking; second, when jacking the extra-large diversion pipe 12, the jacking equipment would be positioned directly beneath it, occupying its installation space and preventing the installation of the last diversion pipe segment. Therefore, a lifting process is considered for installing the extra-large diversion pipe 12.

[0048] When installing the extra-large drainage pipe 12 using a lifting process, the lifting points cannot be set at the top of the drainage pipe section; otherwise, the lifting device 31 will interfere with the top plate of the extra-large concrete pipe 11. Therefore, the lifting points need to be set on the side structure of the extra-large drainage pipe 12. To avoid damaging the noise reduction device, lifting points cannot be set on the structure of the drainage pipe cavity 121. Lifting points can only be set on the head edge 122 and tail edge 123 of the drainage pipe. Therefore, the lifting bracket 2 is set on the head edge 122 and tail edge 123 of the drainage pipe. To avoid the extra-large drainage pipe 12 being subjected to bending moment during the lifting process, the steel strand cannot be directly connected to the lifting bracket 2 for lifting. Therefore, a lifting spreader is needed to connect the head edge 122 and tail edge 123 of the drainage pipe to lift the extra-large drainage pipe 12, ensuring the vertical force on the extra-large drainage pipe 12. The second lifting beam 35 provided in this embodiment is the lifting spreader. Since the extra-large drainage fluid 12 is crescent-shaped and has an irregular structure, it will deflect when lifted by two-point hoisting with one lifting beam. Therefore, this embodiment provides another lifting beam connected to the extra-large drainage fluid 12, namely the third lifting beam 36. This ensures that when the second lifting beam 35 lifts the extra-large drainage fluid 12, the third lifting beam 36 will restrain the extra-large drainage fluid 12 on the lifting steel frame 33, thereby ensuring that the extra-large drainage fluid 12 will not overturn during the lifting process.

[0049] Furthermore, the connections between the second lifting beam 35, the third lifting beam 36 and the lifting bracket 2 are all bolted to avoid cutting operations when dismantling the lifting bracket 2, thereby avoiding damage to the noise reduction device.

[0050] The extra-large drainage pipe 12 requires lifting and assembly within the confined space of the extra-large concrete pipe 11 using a lifting device 3. Assembling each drainage pipe segment separately would result in extremely low efficiency. Therefore, a combination of segmented lifting and assembling techniques is considered. First, a truck crane is used to lift and assemble the first unit segment by segment. After lifting the first unit to a certain height, the truck crane is then used to lift and assemble the second unit segment by segment, sliding it to the bottom of the first unit to close it. This significantly improves installation efficiency. Therefore, a sliding device 4 is needed to allow the extra-large drainage pipe 12 to be installed on the sliding device 4. Simultaneously, the sliding device 4 allows the extra-large drainage pipe 12 to slide to its theoretical installation position. Furthermore, the extra-large drainage fluid 12 has a very high structure, posing a significant risk of overturning during sliding. By connecting the lifting device 3 to the extra-large drainage fluid 12 as a whole for overall sliding, the stability of the extra-large drainage fluid 12 during sliding can be guaranteed. Therefore, the lifting device 3 is mounted on the sliding shoe 42 to achieve the sliding of the lifting device 3.

[0051] Whether it's the extra-large diversion body 12 or the first unit, during the lifting process, it's crucial to ensure that the center of gravity of the lifted structure lies between the second lifting beam 35 and the third lifting beam 36. This significantly improves the structural stability during lifting. Therefore, for the first unit composed of the first |n / 2| diversion body segments, the second lifting beam 35 and the third lifting beam 36 are connected to the lifting brackets 2 on the second and |n / 2| diversion body segments, respectively. For the overall structure of the extra-large diversion body 12, the second lifting beam 35 and the third lifting beam 36 are connected to the lifting brackets 2 on the |n / 2| and |n / 2|+1 diversion body segments, respectively. This ensures that the center of gravity of the extra-large diversion body 12 remains between the second lifting beam 35 and the third lifting beam 36 during assembly, thus guaranteeing construction safety.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for lifting and sliding installation of extra-large fluid-guiding structures, characterized in that, Includes the following steps: S1. Divide the extra-large drainage fluid longitudinally into n drainage fluid segments for fabrication, where n≥5; set lifting brackets on the head edge and tail edge of the drainage fluid in the 2nd, |n / 2|th, and |n / 2|+1th drainage fluid segments, respectively; S2. A sliding device is arranged inside the extra-large concrete pipe, and a lifting device is assembled on the sliding device. The lifting device includes a lifting device, a first lifting beam, a lifting steel frame, a guide steel column, a second lifting beam, and a third lifting beam. The second and third lifting beams have the same structure, and the second lifting beam is located directly above the third lifting beam. S3. Using lifting machinery, the first |n / 2| fluid diversion segments are assembled on the sliding shoe of the sliding device to form the first unit. The lifting device is slid towards the first unit. The second lifting beam is connected to the lifting bracket of the second fluid diversion segment. The third lifting beam is connected to the lifting bracket of the |n / 2| fluid diversion segment. The lifting device is used to lift the first unit to a set height. S4. Using lifting machinery, the remaining drainage fluid is divided into sections and assembled on the sliding shoe of the sliding device to form a second unit. The second unit is slid to directly below the first unit. The first unit is lowered and brought into contact with the second unit using a lifting device. The first unit and the second unit are then assembled to form an extra-large drainage fluid. S5. Move the third lifting beam downwards to connect with the lifting bracket of the |n / 2|+1th drainage section, move the second lifting beam downwards to connect with the lifting bracket of the |n / 2|th drainage section, and slide the lifting device and the extra-large drainage device together until the extra-large drainage device moves to the installation position, thus completing the installation of the extra-large drainage device.

2. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 1, characterized in that, The lifting bracket is located on the concave surface of the extra-large drainage fluid. The lifting bracket includes a first steel beam and a second steel beam. The first steel beam is perpendicular to the extra-large drainage fluid, and the second steel beam is connected to the first steel beam. The axes of the two second steel beams on the fluid diversion segment are on the same straight line. The axes of the second steel beam, the second lifting beam, and the third lifting beam are parallel to each other. The distance between the two second steel beams on the fluid diversion segment is equal to the length of the second lifting beam.

3. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 1, characterized in that, The sliding device includes a hydraulic crawler, a sliding shoe, and at least three steel rails located in the installation area of ​​the extra-large concrete pipe for drawing out the extra-large fluid, with multiple steel rails arranged in parallel and spaced apart. The hydraulic crawler and sliding shoe are arranged on the rail, and the hydraulic crawler is connected to the sliding shoe; the front and rear positions of the hydraulic crawler and sliding shoe on each rail are the same.

4. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 3, characterized in that, The lifting steel frame is a lattice column, and the first lifting beam is set at the top of the lifting steel frame; The lifting device is a through-type hydraulic lifting device, located at the end of the first lifting beam; The guide steel column is set longitudinally along the outer wall of the lifting steel frame; the second lifting beam is perpendicular to the guide steel column, and the two ends of the second lifting beam are nested with the guide steel column, and the second lifting beam can move up and down along the guide steel column; The third lifting beam is perpendicular to the guide steel column, and its two ends are nested with the guide steel column. The third lifting beam can move up and down along the guide steel column.

5. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 4, characterized in that, The lifting device is mounted on the sliding shoe of the sliding device; The hydraulic crawler is connected to an external hydraulic pump source system and a synchronous sliding control system to enable the sliding shoe and the lifting device on the sliding shoe to slide together along the rail, and to enable the sliding shoe and the extra-large duct on the sliding shoe to slide together along the rail. The lifting device includes steel strands, which are connected to the second lifting beam. The lifting device is connected to an external hydraulic pump source system and a synchronous lifting control system to enable the second lifting beam and the extra-large duct connected to the second lifting beam to move up and down along the guide steel column.

6. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 1, characterized in that, In step S1, the extra-large drainage fluid is divided into the first drainage fluid segment, the second drainage fluid segment, ... the nth drainage fluid segment in order from top to bottom, and the n drainage fluid segments have the same length; the first drainage fluid segment is the first drainage fluid segment, the second to |n-1| drainage fluid segments are the second drainage fluid segments, and the nth drainage fluid segment is the third drainage fluid segment.

7. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 6, characterized in that, A flange is provided at the bottom of the first section of the drainage fluid, flanges are provided at the top and bottom of the second section of the drainage fluid, and a flange is provided at the top of the third section of the drainage fluid; The two flanges of the two adjacent fluid-guiding sections that come into contact are provided with through bolt holes and through locating pin holes.

8. The method for lifting and sliding installation of extra-large fluid diverters according to claim 7, characterized in that, After the drainage fluid segments are manufactured, the n drainage fluid segments are pre-assembled into an extra-large drainage fluid. Then, adjacent drainage fluid segments are bolted together, and finally, positioning pin holes are made on the adjacent drainage fluid segments.

9. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 8, characterized in that, In steps S3 and S4, when the fluid guide segments are assembled on the sliding shoe of the sliding device, the misalignment between adjacent fluid guide segments is first adjusted to ensure that the bolt holes of adjacent fluid guide segments can be connected by bolts; then the relative position between adjacent fluid guide segments is adjusted to ensure that the positioning pin holes of adjacent fluid guide segments can be connected by positioning pins; finally, the bolts are tightened.

10. The method for lifting and sliding installation of extra-large fluid-guiding structures according to claim 1, characterized in that, The second lifting beam and the lifting bracket are bolted together, and the third lifting beam and the lifting bracket are bolted together; after the extra-large drainage system is installed, the lifting bracket is removed.

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