Method and system for installing pipeline of air-conditioning water shaft without bottom plate

Abstract

The invention relates to the technical field of bottom-plate-free vertical shaft pipeline installation, and discloses a bottom-plate-free air conditioner water vertical shaft pipeline installation method and system. The three-dimensional acceleration of the pipeline, the rotating speed of a winch, the hoisting height and the wind speed are collected and input into a target stress prediction model; the hoisting platform stress is predicted based on the model, and the rotating speed of the winch and the magnetorheological damper at the cantilever end are adjusted according to the stress value; the pipeline is welded to the inner wall of the vertical shaft after being hoisted in place. The hoisting flexibility and efficiency are improved, and the method is suitable for special space construction of the bottom-plate-free air conditioner water vertical shaft. By means of the stress prediction model and the dynamic adjustment strategy, the stress of the hoisting platform is managed and controlled in real time, the vibration and instability risks caused by dynamic loads are reduced, the pipeline collision hidden danger is reduced, and the efficient and safe construction requirements are met. The technical problems that in the prior art, dynamic loads generated by pipeline hoisting and welding easily cause platform vibration or instability, potential safety hazards are prominent, and efficient and safe construction requirements are difficult to meet are solved.

Description

Technical Field

[0001] This invention relates to the field of bottomless vertical shaft pipe installation technology, and in particular to a bottomless air conditioning water vertical shaft pipe installation method and system. Background Technology

[0002] In high-rise building air source heat pump heating and cooling projects, the bottomless air conditioning water shaft is the core area for air conditioning water system piping installation. The work inside relies on the construction of an operating platform, and the quality and efficiency of construction directly affect the overall project progress and safety. Because these shafts lack a bottom load-bearing structure, they typically extend from the basement to the roof of a high-rise building, with narrow spaces and significant height. For example, in one project, the shaft needed to accommodate approximately 40.5m of piping installation. Its unique structure posed stringent challenges to the stability of the piping support and the safety of the work.

[0003] Therefore, in existing technologies, the installation of such bottomless vertical shaft pipelines typically employs a top-down segmented hoisting and high-altitude welding process. This relies on tower cranes to transport the pipelines in sections to each floor, followed by welding or flange connections at the top of the shaft. Some projects have attempted to utilize winches installed in the upper structure for inverted installation, but the support system still relies on drilling holes in the shaft wall for fixation or the top beams for load-bearing. However, these methods suffer from low hoisting efficiency due to limitations in tower crane capacity and shaft space, high risk of pipeline collisions, and the dynamic loads generated during pipeline hoisting and welding can easily cause platform vibration or instability, posing significant safety hazards and failing to meet the requirements for efficient and safe construction. Summary of the Invention

[0004] This invention provides a method and system for installing air conditioning water vertical shaft pipes without a bottom plate, which solves the technical problems of existing technologies, such as low hoisting efficiency due to tower crane capacity and vertical shaft space limitations, high risk of pipe collision, and dynamic loads generated by pipe hoisting and welding that can easily cause platform vibration or instability, resulting in prominent safety hazards and difficulty in meeting the requirements of efficient and safe construction.

[0005] The first aspect of this invention provides a method for installing bottomless air conditioning water vertical shaft pipes, comprising:

[0006] Obtain the vertical shaft information of the bottomless air conditioning water vertical shaft, and install the support and hanger device and the winch on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information;

[0007] The water pipe is hoisted from top to bottom using the cantilever end of the winch;

[0008] The three-dimensional acceleration of the water pipe, the rotational speed of the winch, the preset hoisting height, and the current wind speed are collected during the hoisting process and input into the preset target stress prediction model;

[0009] The target stress prediction model is used to predict the stress value of the hoisting platform corresponding to the support and hanger device.

[0010] Determine whether the predicted stress value is greater than a first preset stress threshold, and adjust the speed of the winch and the magnetorheological damper on the cantilever end of the winch according to the determination result.

[0011] When the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, the water pipe is welded to the inner wall of the bottomless air conditioning water shaft.

[0012] Optionally, the step of obtaining the vertical shaft information of the bottomless air conditioning water vertical shaft, and installing the support and hanger device and the winch on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information, includes:

[0013] Obtain information about the bottomless air conditioning water shaft;

[0014] Based on the shaft information, the preset hanger position, preset hoisting height, and preset installation position of the bottomless air conditioning water shaft are determined;

[0015] Based on the reserved holes corresponding to the shaft information, the inner walls of the bottomless air conditioning water shaft corresponding to the preset hanger positions and the preset installation positions are arranged and planned.

[0016] Based on the layout plan of the inner wall of the bottomless air conditioning water shaft, a support and hanger device adapted to the layout plan is determined; wherein, the support and hanger device includes a horizontal support, a support brace, and a hanger platform;

[0017] Install the horizontal support, the support diagonal brace, and the hanger platform at the preset hanger position in the bottomless air conditioning water vertical shaft according to the shaft information;

[0018] A winch is installed on the suspension platform.

[0019] Optionally, the step of collecting the three-dimensional acceleration, the winch rotation speed, the preset hoisting height, and the current wind speed during the hoisting process and inputting them into a preset target stress prediction model includes:

[0020] An acceleration sensor is installed in the water pipe to collect the three-dimensional acceleration of the water pipe during the hoisting process;

[0021] The rotational speed of the winch is collected by the speed sensor corresponding to the winch.

[0022] A wind speed sensor is installed on the outside of the opening of the bottomless air conditioning water shaft to collect the current wind speed of the bottomless air conditioning water shaft;

[0023] The three-dimensional acceleration of the water pipe, the rotational speed of the winch, the current wind speed, and the preset hoisting height during the hoisting process are preprocessed and input into a preset target stress prediction model.

[0024] Optionally, it also includes:

[0025] Acquire historical engineering measured data and historical wind speed; wherein, the historical engineering measured data includes historical winch speed, historical pipe height, and historical three-dimensional acceleration;

[0026] The historical winch speed, historical pipe height, historical three-dimensional acceleration, and historical wind speed are preprocessed and feature vectors are extracted to generate winch speed feature vector, pipe height feature vector, three-dimensional acceleration feature vector, and wind speed feature vector, which are then input into a preset initial stress prediction model.

[0027] The initial stress prediction model is trained to generate an updated stress prediction model;

[0028] The updated stress prediction model is validated, and the target stress prediction model is generated.

[0029] Optionally, predicting the predicted stress value of the hoisting platform corresponding to the support device using the target stress prediction model includes:

[0030] The target stress prediction model is used to predict the stress value of the hoisting platform corresponding to the support and hanger device; wherein, the calculation formula of the target stress prediction model is:

[0031]

[0032] In the formula, θ is the model parameter, and σ is the model parameter. t Let v be the stress value at time t. t Let n be the wind speed at time t. t Let h be the speed of the winch at time t. t Let t be the height of the pipe at time t.

[0033] Optionally, the step of determining whether the predicted stress value is greater than a first preset stress threshold, and adjusting the speed of the winch and the magnetorheological damper on the cantilever end of the winch according to the determination result, includes:

[0034] Determine whether the predicted stress value is less than a second preset stress threshold;

[0035] If so, then maintain the speed of the winch;

[0036] If not, determine whether the predicted stress value is within the preset stress range;

[0037] If so, then activate the magnetorheological damper on the cantilever end of the winch and adjust the magnetorheological damper.

[0038] If not, then determine whether the predicted stress value is greater than the first preset stress threshold;

[0039] If so, adjust the speed of the winch and the magnetorheological damper.

[0040] Optionally, when the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, welding the water pipe to the inner wall of the bottomless air conditioning water shaft includes:

[0041] When the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, align the water pipe with the reserved hole;

[0042] The water pipe is welded to the inner wall of the bottomless air conditioning water shaft according to the preset welding rules.

[0043] A second aspect of the present invention provides a bottomless air conditioning water shaft pipe installation system, comprising:

[0044] The acquisition module is used to acquire the vertical shaft information of the bottomless air conditioning water vertical shaft, and install the support and hanger device and the winch on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information;

[0045] The hoisting module is used to hoist water pipes from top to bottom using the cantilever end of the winch;

[0046] The data acquisition module is used to acquire the three-dimensional acceleration of the water pipe, the rotational speed of the winch, the preset hoisting height, and the current wind speed during the hoisting process, and input them into the preset target stress prediction model.

[0047] The prediction module is used to predict the predicted stress value of the hoisting platform corresponding to the support and hanger device through the target stress prediction model;

[0048] The judgment module is used to determine whether the predicted stress value is greater than a first preset stress threshold, and adjust the speed of the winch and the magnetorheological damper on the cantilever end of the winch according to the judgment result.

[0049] The welding module is used to weld the water pipe to the inner wall of the bottomless air conditioning water shaft when the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft.

[0050] The third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed, implements the bottomless air conditioning water shaft pipe installation method as described in any of the preceding claims.

[0051] The fourth aspect of the present invention provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, wherein, when the program instructions are executed by a computer, the computer performs the bottomless air conditioning water shaft pipe installation method as described in any of the preceding claims.

[0052] As can be seen from the above technical solutions, the present invention has the following advantages:

[0053] This invention acquires information about a bottomless air conditioning water shaft, installs a support frame and winch at a pre-set location, and hoists the water pipe using the cantilever end of the winch. It collects the pipe's three-dimensional acceleration, winch speed, hoisting height, and wind speed, inputting these data into a target stress prediction model. Based on the model, it predicts the stress on the hoisting platform and adjusts the winch speed and the magnetorheological damper at the cantilever end according to the stress values. After the pipe is hoisted into place, it is welded to the inner wall of the shaft. This invention overcomes the limitations of tower crane capacity and shaft space. By using a winch for hoisting at the cantilever end, it expands the operating range, improves hoisting flexibility and efficiency, and is suitable for construction in the special space of bottomless air conditioning water shafts. Through the stress prediction model and dynamic adjustment strategy, it manages the stress on the hoisting platform in real time, reducing the risk of vibration and instability caused by dynamic loads, minimizing pipe collision hazards, meeting the requirements for efficient and safe construction, and solving prominent safety issues in existing technologies. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of the present 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a flowchart illustrating the steps of a bottomless air conditioning water shaft pipe installation method according to Embodiment 1 of the present invention.

[0056] Figure 2-1 This is an installation diagram of a support and hoisting device provided in Embodiment 1 of the present invention;

[0057] Figure 2-2 This is an installation diagram of another support and hoisting device provided in Embodiment 1 of the present invention;

[0058] Figure 3-1This is a partial schematic diagram of the relationship between a water pipe and a support provided in Embodiment 1 of the present invention;

[0059] Figure 3-2 This is a partially enlarged schematic diagram of the water pipe and support provided in Embodiment 1 of the present invention;

[0060] Figure 4 This is a schematic diagram of a hoisting platform provided in Embodiment 1 of the present invention;

[0061] Figure 5 This is a first working schematic diagram of a winch provided in Embodiment 1 of the present invention;

[0062] Figure 6 This is a second working schematic diagram of a winch provided in Embodiment 1 of the present invention;

[0063] Figure 7 This is a structural block diagram of a bottomless air conditioning water shaft pipeline installation system provided in Embodiment 2 of the present invention.

[0064] The meanings of the reference numerals in the attached figures are as follows:

[0065] 1. Rib plate; 2. Bolt; 3. Reinforcing plate; 4. Channel steel; 5. Wooden block; 6. Expansion bolt; 7. Steel plate; 8. Winch; 9. Pulley; 10. Wire rope. Detailed Implementation

[0066] This invention provides a method and system for installing air conditioning water vertical shaft pipes without a bottom plate, which solves the technical problems of existing technologies, such as low hoisting efficiency due to tower crane capacity and vertical shaft space limitations, high risk of pipe collision, and dynamic loads generated by pipe hoisting and welding that can easily cause platform vibration or instability, resulting in prominent safety hazards and difficulty in meeting the requirements of efficient and safe construction.

[0067] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0068] Please see Figures 1 to 6 , Figure 1 This is a flowchart illustrating the steps of a bottomless air conditioning water shaft pipe installation method provided in Embodiment 1 of the present invention.

[0069] This invention provides a method for installing bottomless air conditioning water shaft pipes, comprising:

[0070] Step 101: Obtain the vertical shaft information of the bottomless air conditioning water vertical shaft, and install the support and hanger device and the winch 8 on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information.

[0071] In this embodiment of the invention, a bottomless air conditioning water shaft refers to a vertical shaft in a high-rise building used for laying air conditioning water system pipes (e.g., from -5.9m on the first basement level to 1.75m on the 10th floor roof, with a total height of 51m). Its bottom lacks a pre-cast concrete load-bearing slab (unlike traditional shafts with a slab), and the pipe load must be entirely borne by the support and hanger system on the shaft's sidewalls or top. Such shafts typically extend from the basement to the roof of a high-rise building and are crucial channels for the vertical connection of the air conditioning water system.

[0072] Shaft information refers to a set of parameters characterizing the structure and environmental features of a bottomless air conditioning water shaft, including:

[0073] Geometric parameters: shaft depth (e.g., 51m), cross-sectional dimensions (e.g., length 2.1m × width 1.0m), location and dimensions of doorways on each floor (e.g., width 1.2m × height 2.2m);

[0074] Structural parameters: well wall material (concrete or masonry), load-bearing capacity of the top beam (e.g., can withstand a load ≥ 5t), range of the area without a bottom slab (e.g., no load-bearing structure from the basement to the ground floor);

[0075] Environmental parameters: air velocity (0-10 m / s) and temperature (-5℃-35℃) inside the shaft.

[0076] Pre-planned hanger locations refer to the pre-planned coordinates for hanger installation based on shaft information, pipe weight, and construction plan. These coordinates must meet the following requirements:

[0077] Load-bearing requirements: Avoid weak areas of the well wall (such as waterproof layer, pipeline pre-embedded areas), and select a wall location with concrete strength ≥ C30;

[0078] Spatial adaptability: No conflict with pipeline hoisting path (safe distance ≥150mm from pipeline outer wall), and easy to install and operate winch 8 (e.g., hoisting platform is set up on the 10th floor);

[0079] Distribution rules: Evenly distributed across floors (e.g., load-bearing supports are installed on each floor from 1 to 10, and fixed supports are added to the intermediate floors).

[0080] The support and hanger system refers to the load-bearing structure used to fix and support air conditioning water pipes. It includes horizontal supports, diagonal braces, and hanger platforms. The horizontal supports, diagonal braces, and hanger platforms are all composed of structural steel (such as 4 horizontal supports of 16# channel steel and 4 diagonal braces of 12# channel steel), connectors (6 M16 expansion bolts and welded joints), and auxiliary components (anti-corrosion wooden supports and rib plates 1). A wooden pad 5 is also provided on one side of the rib plate 1. Its core function is to transfer the pipe load to the manhole wall or top structure, and it must meet the following requirements:

[0081] Strength requirement: The bearing capacity of the diagonal brace ≥ 1.5 times the self-weight of the pipe (e.g., for a single pipe). The pipe weighs 3.2t, and the diagonal brace needs to bear a weight of ≥4.8t.

[0082] Stability requirements: Use diagonal bracing (at a 60° angle with the horizontal support) to resist horizontal loads (such as wind force, pipe sway) and prevent overturning.

[0083] The winch 8 refers to the lifting equipment (such as a 5t winch 8) installed on the support and hanger device. It uses a wire rope 10 and a movable pulley 9 to lift the pipes in reverse (in this invention, due to the limited construction area, the winch 8 is installed on the upper level, and the vertical shaft pipes are installed by inverting). Its parameters need to match the lifting requirements.

[0084] Rated tensile force: ≥ the maximum weight of a single section of pipe (e.g., a 3.2t pipe requires a winch with a single rope tensile force ≥ 2.5t);

[0085] Speed ​​range: 5-20r / min (suitable for different hoisting stages, such as low speed from the first basement level to the second floor, and high speed from the fifth to the tenth floor);

[0086] Installation location: Fix it on the horizontal support of the pre-set hanger (such as a 10-story hoisting platform), ensuring that it is aligned with the center of the shaft to avoid uneven load during hoisting.

[0087] First, precise information about the shaft needs to be obtained through on-site surveying, drawing analysis, and environmental monitoring. This includes geometric parameters (such as depth, cross-sectional dimensions, and doorway location), structural parameters (such as shaft wall material and top load-bearing capacity), and environmental parameters (such as wind speed and temperature). Then, based on this information, pre-planned hanger locations are planned. These locations must avoid weak areas of the shaft wall, not conflict with the pipe hoisting path, and be easy to operate. Finally, a support and hanger device composed of steel sections and connectors is installed at the pre-planned locations to ensure that the pipe load can be stably transferred to the shaft wall or top structure. A winch 8, matching the hoisting requirements, is then fixed to the support and hanger device, providing a safe and reliable load-bearing foundation and power support for subsequent pipe inversion and lifting, thus laying the foundation for the safe and efficient execution of the entire installation project.

[0088] Further, step 101 includes the following sub-steps:

[0089] S11. Obtain the vertical shaft information of the bottomless air conditioning water vertical shaft.

[0090] In this embodiment of the invention, the vertical shaft information, such as geometric parameters (e.g., depth, cross-sectional dimensions, and doorway location), structural parameters (e.g., shaft wall material and top load-bearing capacity), and environmental parameters (e.g., wind speed and temperature), is accurately obtained through on-site surveying, drawing analysis, and environmental monitoring.

[0091] S12. Based on the shaft information, determine the preset hanger position, preset hoisting height, and preset installation position of the bottomless air conditioning water shaft.

[0092] In this embodiment of the invention, the preset hoisting height refers to the key elevation points (such as "hoisting to the 5th floor" or "hoisting to the 10th floor") that the pipeline needs to stop, connect, or weld during the inversion process, based on the depth of the shaft, the length of the pipeline segments, and the construction procedures. The total length of the single pipeline segment after connection must match the height of the corresponding area of ​​the shaft (such as a 3m / segment pipeline hoisting at the 5th floor corresponding to a total length of 21m), while reserving space for welding operations (≥1.5m from the floor slab).

[0093] The preset installation location refers to the design coordinates of the pipeline's final installation within the shaft, including its horizontal layout (e.g., ...). and The spacing of pipes (safe distance from the well wall ≥ 150mm) and the vertical floor correspondence (such as the direction of the riser from the first basement floor to the 10th floor) must be precisely matched with the inlet and outlet of the air conditioning water system and the location of the branch pipes, and meet the hydraulic condition requirements of the design drawings.

[0094] First, based on the geometric dimensions of the shaft and the load-bearing capacity of the shaft wall, determine the installation points of the supports and hangers (preset hanger positions) to ensure the reliability of the load-bearing structure. Then, considering the pipe segment lengths (e.g., 3m / segment), the total height of the shaft (e.g., 51m), and the floor distribution, delineate the critical elevations where the pipes need to stop during hoisting (preset hoisting heights) to facilitate welding. Finally, based on the system design drawings, clarify the spatial coordinates of the final fixed pipe position (preset installation location) to ensure the connection accuracy with other equipment and pipelines. These three aspects are interconnected and together constitute a complete process plan from "load-bearing foundation" to "hoisting process" to "final shaping," providing clear guidance for subsequent efficient construction.

[0095] S13. According to the reserved holes corresponding to the shaft information, plan the layout of the inner wall of the bottomless air conditioning water shaft corresponding to the preset hanger position and the preset installation position.

[0096] In this embodiment of the invention, a reserved hole refers to a hole pre-drilled in the well wall or floor slab according to design requirements before the construction of a bottomless air conditioning water shaft. This hole is used for pipe penetration through the floor slab, branch pipe connections, or equipment installation (e.g., "current state of the shaft and reserved holes"). Its dimensions must match the pipe specifications (e.g., ...). The diameter of the reserved hole for the pipe should be ≥500mm, and the location should avoid structural beams and areas with dense reinforcement.

[0097] Layout planning refers to the systematic design of the spatial arrangement of supports and pipes on the inner wall of the shaft based on the shaft space, reserved hole locations and pipe installation requirements. This includes the spacing between supports and holes (≥300mm, to avoid weakening the strength of the shaft wall), the concentricity of pipes and holes (deviation ≤50mm, to ensure smooth penetration), and the layout spacing between multiple pipes (≥200mm, to reserve maintenance space).

[0098] First, the size, location, and function of the reserved holes (such as pipe penetration or branching) must be clearly defined. Then, based on this, the preset position of the supports and hangers should be adjusted (to ensure a safe distance from the holes and avoid structural stress conflicts). At the same time, the preset installation path of the pipes should be optimized (to minimize the deviation when the pipes pass through the holes and reduce the need for subsequent hole opening and repair).

[0099] This layout plan, which uses pre-reserved holes as constraints, ensures the compatibility of supports, pipes, and the original structure of the shaft (without damaging the strength of the concrete around the holes), while also ensuring the sealing performance between the pipes and the holes after installation (reducing the risk of leakage). This provides a precise basis for subsequent pipe penetration, fixing, and sealing construction, achieving a dual guarantee of "structural safety" and "installation accuracy."

[0100] S14. Based on the layout plan of the inner wall of the bottomless air conditioning water shaft, determine the support and hanger device that matches the layout plan; wherein, the support and hanger device includes horizontal support, support diagonal brace and hanger platform.

[0101] In this embodiment of the invention, the horizontal support refers to the load-bearing component set along the horizontal direction of the shaft. It is usually made of 16# channel steel 4. Its main function is to directly bear the self-weight of the pipeline and the vertical load during hoisting. It is fixed to the inner wall of the shaft by expansion bolts 6 and must be perpendicular to the pipeline axis to ensure uniform force distribution.

[0102] The diagonal brace of the support refers to the inclined support structure that connects the horizontal support to the inner wall of the vertical shaft. It is mostly made of 12# channel steel 4 and forms a 60° angle with the horizontal support. It is used to resist the horizontal load (such as wind load and hoisting eccentricity) generated by the swing of the pipeline, enhance the stability of the entire support system, and prevent the horizontal support from overturning due to unilateral force.

[0103] The hanging platform refers to a modular load-bearing platform set up on a specific floor (such as the 10th floor). It is welded from 16# channel steel 4 and fixed to the floor slab and wall by expansion bolts 6. It serves as the installation base for the winch 8 and provides a temporary operating surface for pipeline hoisting and docking. It must meet the dual load-bearing requirements of the winch 8's own weight and the pipeline load (such as a load-bearing capacity ≥ 7800 kg).

[0104] Determining the appropriate support and hanger devices based on the layout plan of the shaft's inner wall is the core step in ensuring that the supports and hangers work in harmony with the pipelines and shaft structure. The layout plan clearly defines the spatial location of the pipelines, load distribution, and their relative relationship with reserved openings. The selection and design of the support and hanger devices must strictly match these parameters: the spacing of the horizontal supports must correspond to the pipeline's load-bearing requirements; the number of diagonal braces (e.g., 4 on each side) must be determined based on horizontal load calculations; and the location of the hanger platform must be compatible with the hoisting path and the operation requirements of the winch.

[0105] The horizontal supports, diagonal braces, and hanging platforms are not independent entities: the horizontal supports directly bear the pipes, the diagonal braces disperse the horizontal force through a triangular stabilizing structure, and the hanging platforms provide a fixed foundation for the hoisting equipment. Together, they form a complete system of "vertical load-bearing + horizontal lateral resistance + equipment support".

[0106] This adaptability design ensures that the support system meets the mechanical requirements of pipe installation (such as stress not exceeding the allowable value of Q235 steel) and avoids conflicts with other structures in the shaft (such as reserved holes and wall reinforcement). It provides safe and reliable structural support for subsequent pipe hoisting and fixing, and is a key guarantee for realizing the inverted installation of pipes in a bottomless shaft.

[0107] S15. Install horizontal supports, support braces, and hanger platforms at the preset hanger positions of the bottomless air conditioning water vertical shaft according to the shaft information.

[0108] In this embodiment of the invention, based on the geometric dimensions of the shaft and the load-bearing capacity of the shaft wall, the horizontal support of 16# channel steel 4 is first fixed to the inner wall of the shaft at a preset position using M16 expansion bolts 6, ensuring that it is perpendicular to the pipeline axis to distribute the force evenly; then, the support diagonal brace made of 12# channel steel 4 is welded at a 60° angle between the horizontal support and the shaft wall to form a stable triangular structure to resist horizontal loads; finally, a hanging platform composed of 16# channel steel 4 is welded on a specific floor (such as the 10th floor), and is doubly fixed to the floor slab and wall by expansion bolts 6, serving as the installation base and operating surface of the winch 8. The three components work together to construct a complete system of "vertical load-bearing + horizontal lateral resistance + equipment support", laying the structural foundation for subsequent pipeline hoisting.

[0109] S16. A winch 8 is installed on the suspension platform.

[0110] In this embodiment of the invention, based on the vertical shaft hoisting requirements (e.g., a single pipe weighing 3216.33 kg), a 5t-class winch 8 is selected and fixed to a 10-story hoisting platform welded from 16# channel steel 4 using bolts 2. This ensures that the winch 8 is aligned with the center of the vertical shaft (deviation ≤ 5°). The wire rope 10 is vertically lowered through pre-drilled holes on the platform and precisely connected to the pipe hoisting point. During installation, it is necessary to verify that the total load (including self-weight and pipe weight) of the platform and winch 8 does not exceed the load-bearing limit of the hoisting platform (e.g., the allowable shear force of the expansion bolt 6 is 7800 kg). The start / stop and speed control functions of the winch 8 are also tested to link it with the dynamic load control system, providing controllable power for the segmented lifting of the pipe from the first basement level to the 10th floor, thus achieving a safe and efficient reverse installation process.

[0111] It is worth mentioning that the horizontal supports are all made of 16# channel steel 4, and the diagonal braces are made of 12# channel steel 4; fixed supports are set in the middle layer of the pipeline, with four diagonal braces at the top and bottom; load-bearing supports are set in each of the 1st to 10th layers except for the middle layer, with four diagonal braces at the bottom, and no compensators are set; at the end of the pipeline on the first underground layer, the horizontal pipe has a tee, the end of the vertical pipe is sealed, and a support is set at the bottom; all steel joints are welded, and all welds are fully welded.

[0112] The following points should be noted when installing supports and hangers:

[0113] 1) Since the pipes are laid along the wall and it is impossible to install ground supports, this method uses cantilever supports.

[0114] 2) The bottom of the support legs at the lower end of the frame is installed at a height of 300mm from the ground.

[0115] 3) First, fix the 10mm thick back plate to the concrete wall with 4 M16 expansion bolts.

[0116] 4) Weld the horizontal and diagonal supports to the back plate, with the angle between the horizontal and diagonal supports being 60°.

[0117] 5) The upper support frame and the lower support frame are fully welded together.

[0118] To prevent condensation and ensure proper fixing of the water pipes to the supports, a corrosion-resistant wooden support is used as an insulation layer between the water pipes and the supports, and a reinforcing plate 3 is welded onto the pipes. Two ribs are welded onto the pipe. One rib is welded onto the pipe.

[0119] Specifically, since the roof floor does not meet the requirements for erecting a hoisting platform, the platform will be erected on the 10th floor. The prefabricated water pipes are all 3 meters long. They will be hoisted and welded one by one from the basement to the 10th floor floor slab. The total length of the pipes is 40.5 meters. It is planned to hoist 3*13 pipes, for a total of 13 pipes, with a total length of 39 meters. The spiral welded pipe weighs 82.47 kg per meter, and the total weight of a single pipe is 3216.33 kg.

[0120] Lifting platform erection: The lifting platform is constructed using 16# channel steel welded together. It is fixed to the concrete wall using 12 M16 expansion bolts. Each fixing plate has 6 bolts. The fixing plates are fully welded to the support on both sides and fixed to the floor slab using M12 expansion bolts.

[0121] The expansion bolts 6 fixing the hoisting platform to the concrete wall bear shear force, while the expansion bolts 6 fixing the floor slab bear tensile force. The allowable shear force of a single M16 expansion bolt 6 on concrete is 650 kg, 650 * 12 = 7800 kg; the allowable tensile force of a single M12 expansion bolt 6 is 1060 kg, 1060 * 7 = 7420 kg.

[0122] Using the edge of the shaft as a fulcrum, and considering that the suspended length of the hoisting platform is 1m, without taking into account moments and steel deformation, each side bears 50% of the force, that is:

[0123] 3216.33 ÷ 2 = 1608.17 kg

[0124] The proposed winch 8 is 5t, with a self-weight of 260kg. The total weight of the winch and the pipeline is 1608.17 + 260 = 1868.17kg, which is much less than the 7800kg and 7420kg that the expansion bolts 6 can withstand.

[0125] It should be noted that regarding the selection of winch 8:

[0126] A 5t winch will be selected as the hoisting power source. Based on the vertical shaft conditions, the hoisting of each pipe will be divided into two stages:

[0127] In the first phase, the pipes were hoisted to the 5th floor. There were 7 pipes with a total length of 21m and a total weight of 1731.87kg. The 5t winch with 8 single ropes had a lifting capacity of 2500kg, which met the hoisting requirements.

[0128] In the second stage, after hoisting to the 5th floor, a 5t movable pulley 9 is set up to hoist the remaining pipes from the 5th to the 10th floor. The longest number of pipes hoisted is 13, with a total length of 39m and a total weight of 3216.33kg. The single rope load capacity is 1608.17kg, which is less than the single rope load capacity of the 5t winch 8, which is 2500kg.

[0129] Therefore, a suitable 5t winch was selected to meet the on-site construction requirements.

[0130] Step 102: The water pipe is hoisted from top to bottom using the cantilever end of the winch 8.

[0131] It should be noted that water pipes refer to prefabricated pipe sections used for transporting air conditioning heating and cooling media in bottomless air conditioning water shafts, typically made of materials such as spiral welded pipes (e.g., Specifications), the length of a single section is set according to the hoisting requirements (e.g., 3m / section), both ends are beveled, and it can be connected by welding or flanges to form a continuous pipeline. It is the core component for vertical conveying of media in air conditioning water systems.

[0132] The cantilever end of the winch 8 refers to the part of the rotating components of the winch 8, such as the drum, that extends outward beyond the supporting structure of the machine body. Structurally, when the winch 8 is working, the drum and other key components that bear the responsibility of winding the wire rope 10 and realizing the traction function will have an extension at one or both ends that extends beyond the frame (such as the bearing seats, brackets, and other fixed structures supporting the drum). This part is called the cantilever end because it has a force-bearing pattern similar to a cantilever beam (one end is fixed and the other end is suspended).

[0133] Based on the installed winch 8, the wire rope 10 is connected to the pipe hoisting point at its cantilever end. According to the preset hoisting height, the prefabricated water pipes are lifted from the top of the bottomless air conditioning water shaft or a higher floor to a lower floor. This top-down hoisting method, unlike the traditional bottom-up installation, reduces the amount of high-altitude work and allows for precise control of the hoisting rhythm based on shaft information and preset planning, ensuring that the pipes are smoothly connected at the preset installation position, creating conditions for subsequent fixing and welding.

[0134] Step 103: Collect the three-dimensional acceleration of the water pipes, the rotational speed of the winch 8, the preset hoisting height, and the current wind speed during the hoisting process, and input them into the preset target stress prediction model.

[0135] In this embodiment of the invention, three-dimensional acceleration refers to the change in acceleration along the X, Y, and Z axes of space during the hoisting process of the water pipe. It is collected by an acceleration sensor installed on the flange at the top of the pipe and is used to quantify the swaying or impact intensity of the pipe caused by wind force and the start and stop of the winch 8 (such as horizontal swaying acceleration and vertical lifting acceleration).

[0136] The rotational speed of winch 8 refers to the number of revolutions the drum of winch 8 makes per unit time (unit: r / min). It is monitored in real time by a frequency converter / speed sensor and is directly related to the pipe hoisting speed (the higher the rotational speed, the faster the hoisting speed). It is the core parameter for controlling the hoisting rhythm (e.g., speed range 5-20 r / min).

[0137] Current wind speed refers to the airflow speed inside and at the top of the shaft during hoisting. It is collected by a wind speed sensor installed at the top of the shaft and includes horizontal wind speed (which affects the horizontal sway of the pipe) and vertical wind speed (which affects hoisting resistance). It is one of the key sources of dynamic load (e.g., wind speed range 0-10m / s).

[0138] The target stress prediction model refers to a machine learning model built on LSTM (Long Short-Term Memory Network). By training 300 sets of historical hoisting data (including features such as stress, wind speed, and rotation speed), it can predict the peak stress of the support and hanger within the next 100ms by inputting real-time parameters, providing a decision-making basis for dynamic load control (e.g., model test set error ≤ 0.5MPa).

[0139] Collecting key parameters during the hoisting process and inputting them into the target stress prediction model is the core of intelligent monitoring for the hoisting of bottomless air conditioning water shaft pipes. Multi-source sensors capture in real time the motion state of the water pipes (three-dimensional acceleration), the operating parameters of the hoisting equipment (winch speed), environmental interference factors (current wind speed), and preset process parameters (preset hoisting height), forming a complete feature vector.

[0140] These parameters are collected at a frequency of 100Hz to ensure that dynamic changes are recorded every 0.01s, meeting the real-time requirements of stress prediction. For example, when the wind speed suddenly increases from 5m / s to 8m / s, the sensor can capture the wind speed change and the increase in horizontal acceleration of the pipeline (from 0.2g to 0.5g) within 0.1s, providing timely input for model prediction.

[0141] The target stress prediction model learns the coupling relationships between parameters (e.g., increasing rotational speed increases the pipe's upward acceleration, thus increasing the stress on the supports and hangers) and outputs a prediction of the peak stress at future moments. For example, with an input rotational speed of 10 r / min, a wind speed of 6 m / s, and a vertical acceleration of 0.3g, the model can predict that the stress will increase from 90 MPa to 105 MPa after 100 ms, providing a predictive basis for subsequent adjustments (such as reducing rotational speed or increasing damping).

[0142] Furthermore, step 103 includes the following sub-steps:

[0143] S21. An acceleration sensor is installed in the water pipe to collect the three-dimensional acceleration of the water pipe during the hoisting process.

[0144] In this embodiment of the invention, the accelerometer refers to an electronic device that can sense changes in the acceleration of an object in three-dimensional space (X, Y, Z axes) and convert them into electrical signals. In this scenario, MEMS (Micro-Electro-Mechanical Systems) type is typically used, which has high precision (measurement range ±16g, accuracy 0.001g) and vibration resistance. It can be fixed to the outer wall of the water pipe by magnetic attraction or bolt 2, and capture the dynamic motion state such as swing and impact during pipe hoisting in real time.

[0145] Installing accelerometers in water pipes and collecting three-dimensional acceleration data is the core method for achieving dynamic monitoring of the hoisting process. The sensors are installed at the top 1 / 3 of the pipe (within 50cm of the hoisting point) and synchronously record the pipe's motion parameters in the horizontal direction (left / right / backward swaying caused by wind speed) and vertical direction (up and down acceleration caused by the start and stop of the winch 8) at a frequency of 100Hz. The data is wirelessly transmitted to the control system and compared with the preset safety threshold (such as horizontal acceleration ≤0.5g). Once the threshold is exceeded, an early warning is immediately triggered, providing a quantitative basis for adjusting the speed of the winch 8 and optimizing the hoisting path, thus avoiding collisions between the pipe and the inner wall of the shaft or structural damage due to excessive inertial force.

[0146] S22. The rotational speed of winch 8 is collected by the speed sensor corresponding to winch 8.

[0147] In this embodiment of the invention, the speed sensor refers to a device that can monitor the rotational speed of the winch 8 drum in real time and convert it into an electrical signal. In this scenario, a Hall effect sensor is often used. It detects the change in the magnetic field generated when the magnet installed at the end of the drum shaft rotates, and outputs a pulse signal (unit: Hz) proportional to the rotational speed. After conversion, the rotational speed of the winch 8 (unit: r / min) can be obtained. It has the characteristics of fast response (≤10ms) and high accuracy (error ≤0.5%), and can accurately reflect the operating status of the hoisting power equipment.

[0148] The sensor is installed on the output shaft of the winch 8 motor or the side of the drum to capture changes in rotational speed in real time (e.g., from 5 r / min to 15 r / min). After the data is transmitted to the control system, the pipe hoisting speed (e.g., 0.1 m / s) can be calculated and compared with the preset speed threshold (e.g., maximum 18 r / min). When the rotational speed is abnormal (e.g., suddenly increases to 22 r / min), the system can quickly link the frequency converter of the winch 8 to adjust the speed, so as to avoid overload or excessive impact on the pipe hoisting due to excessive speed, and ensure the smooth and controllable hoisting process.

[0149] S23. A wind speed sensor is installed on the outside of the opening of the bottomless air conditioning water shaft to collect the current wind speed of the bottomless air conditioning water shaft.

[0150] In this embodiment of the invention, the wind speed sensor refers to a device that can monitor the airflow speed in real time and convert it into an electrical signal. In this scenario, ultrasonic sensors are often used. The wind speed (unit: m / s) is calculated by measuring the time difference of sound wave propagation in the air. It has the characteristics of no mechanical wear, rapid response (≤2s), and wide measurement range (0-20m / s). It can accurately capture the wind environment changes in the opening of the bottomless air conditioning water shaft and its surroundings. It is a key device for assessing the impact of wind load on hoisting.

[0151] The sensor is installed 1.5m above the opening (avoiding obstruction during hoisting operations) to record horizontal wind speed (which affects the horizontal swaying of the pipeline) and vertical wind speed (which increases hoisting resistance) in real time. The data is synchronously transmitted to the control system and compared with the preset safe wind speed threshold (e.g., ≤8m / s). When the wind speed exceeds the threshold, the system can automatically trigger an early warning, prompting the hoisting to be suspended or the winch speed to be reduced. This prevents the pipeline from swaying significantly or colliding with the inner wall of the shaft due to strong winds, or from exceeding the stress limit of the supports due to sudden changes in wind load, thus providing an environmental basis for dynamically adjusting hoisting parameters.

[0152] S24. Preprocess the three-dimensional acceleration of the water pipes, the rotational speed of the winch 8, the current wind speed, and the preset hoisting height during the hoisting process, and input them into the preset target stress prediction model.

[0153] In this embodiment of the invention, preprocessing refers to the process of standardizing, denoising, imputing missing values, and extracting features from the collected raw data such as three-dimensional acceleration, winch rotation speed, current wind speed, and preset hoisting height. For example, high-frequency noise in the three-dimensional acceleration is removed by Kalman filtering, parameters in different units (such as wind speed m / s and rotation speed r / min) are uniformly converted into standardized data in the range [0,1], missing values ​​caused by temporary sensor malfunctions are imputed by linear interpolation, and key features such as acceleration peak value and rotation speed fluctuation rate are extracted to ensure that the data input to the model meets the format requirements and noise is minimized.

[0154] The raw data may fluctuate abnormally due to sensor errors and environmental interference (such as a wind speed sensor falsely reporting 15 m / s). Preprocessing can remove such outliers using the 3σ criterion. Standardized parameters can eliminate dimensional differences (such as avoiding the influence of rotational speed values ​​being much greater than wind speed on model weights). Extracted features (such as the average acceleration over 10 seconds) are more in line with the model's input requirements. Ultimately, the processed data can be efficiently interpreted by the target stress prediction model, improving the accuracy of stress prediction (such as reducing the error from ±3 MPa to ±1 MPa), and providing a reliable basis for hoisting safety control.

[0155] Furthermore, this method also includes the following steps:

[0156] S31. Obtain historical engineering measured data and historical wind speed; among which, historical engineering measured data includes historical winch speed, historical pipe height and historical three-dimensional acceleration.

[0157] In this embodiment of the invention, historical engineering measured data refers to the set of various key parameters actually collected and recorded by sensors and other equipment in similar water pipe hoisting projects in the past. In this scenario, it specifically includes historical winch rotation speed (drum rotation speed at different hoisting stages), historical pipe height (pipe hoisting position at different times), and historical three-dimensional acceleration (acceleration changes of the pipe along the X, Y, and Z axes). After being organized, this data forms a structured dataset (such as stored according to project number and hoisting stage), which serves as the basic training sample for constructing the target stress prediction model. The training data includes 300 sets of engineering measured data.

[0158] Historical data can reflect the correlation patterns of parameters under different operating conditions (such as the pipeline acceleration characteristics corresponding to the low-speed operation of the winch at high wind speeds). By matching it with historical wind speeds of the same period, a complete data chain of "environmental parameters - equipment parameters - pipeline status" can be constructed. For example, the three-dimensional acceleration data corresponding to "wind speed 6m / s, rotation speed 8r / min, and pipeline height 15m" in a certain historical project can provide examples for the model to learn the stress change patterns under such operating conditions, so that when the model faces similar scenarios in new projects, it can output more accurate stress prediction results based on historical patterns.

[0159] S32. Preprocess the historical winch 8 speed, historical pipe height, historical three-dimensional acceleration and historical wind speed and extract feature vectors to generate winch 8 speed feature vector, pipe height feature vector, three-dimensional acceleration feature vector and wind speed feature vector and input them into the preset initial stress prediction model.

[0160] In this embodiment of the invention, the speed characteristic vector of the winch 8 refers to the key numerical combination extracted from the historical speed data of the winch 8 that reflects its operating pattern, such as the maximum, minimum, average, fluctuation rate (the ratio of the speed change to the initial speed) and the number of speed change changes within 1 minute, presented in vector form (e.g., [12r / min, 5r / min, 8.5r / min, 0.3, 2 times]), which can quantify the power output characteristics of the winch 8 at different hoisting stages.

[0161] The pipeline height feature vector refers to the set of features extracted from historical pipeline height data that characterize the changes in the spatial position of the pipeline. It includes the absolute height at a certain moment, the amount of height change per unit time (i.e., hoisting speed), the cumulative height change (total lifting height), and the smoothness of the height change (such as the height fluctuation value within 5 consecutive seconds). The vector form (such as [15m, 0.2m / s, 30m, 0.05m]) can intuitively reflect the rising process and stability of the pipeline in the shaft.

[0162] The three-dimensional acceleration feature vector refers to the core parameter combination that reflects the dynamic motion of the pipeline, extracted from historical three-dimensional acceleration data. It covers the peak value of acceleration in the X / Y / Z axis directions, the root mean square value (reflecting the vibration intensity), the duration of positive and negative acceleration, and the three-dimensional composite acceleration (comprehensively judging the severity of pipeline swaying). The vector form (such as [0.8g, 0.3g, 0.5g, 0.2g, 1.2s]) can accurately characterize the mechanical state such as impact and swaying during pipeline hoisting.

[0163] Wind speed feature vectors refer to characteristic indicators extracted from historical wind speed data that reflect environmental wind loads. These include average wind speed, maximum instantaneous wind speed, wind direction angle (relative to the shaft opening), duration of wind speed exceeding the safety threshold, and rate of change of wind speed, etc., in vector form (e.g., [5m / s, 7.2m / s, 30°, 15s, 0.8m / s)). 2 The degree of interference of the wind environment on hoisting can be quantified.

[0164] The initial stress prediction model refers to an initial algorithm model (mostly a machine learning model, such as a long short-term memory network) built based on historical data to predict stress values ​​during the hoisting of water pipes. Its input consists of the four types of feature vectors mentioned above, and its output is the predicted stress value of key parts of the pipe (such as welding points, support and hanger connections, or hoisting platforms). The model needs to be trained with historical data to continuously optimize its parameters. There may be certain prediction errors in the initial state, and it needs to be iteratively improved by combining new engineering data.

[0165] By using feature vectors, the raw data is transformed into a "feature language" that the model can recognize (such as using the speed fluctuation rate to reflect the start-stop stability of winch 8), enabling the model to learn the inherent relationship between "environment-equipment-pipeline status-stress" in historical data (such as stress exceeding limits when high wind speed + high speed). The initial model can output stress prediction results under the corresponding working conditions by calculating these feature vectors, providing a basis for subsequent model optimization (such as adjusting the number of nodes in the hidden layer of the neural network), and ultimately achieving early stress warning for new hoisting projects.

[0166] S33. Train the initial stress prediction model to generate an updated stress prediction model.

[0167] In this embodiment of the invention, updating the stress prediction model refers to the process of training the initial stress prediction model with historical data and iteratively optimizing the parameters to create a model with higher prediction accuracy and adaptability. Based on the initial model, it continuously inputs preprocessed historical feature vectors such as winch speed, pipe height, three-dimensional acceleration, and wind speed, and combines them with corresponding measured stress data for reverse correction (such as adjusting model weights and optimizing the loss function), gradually reducing prediction errors and ultimately more accurately reflecting the correlation between various parameters and pipe stress during the hoisting process.

[0168] Initial models may exhibit prediction biases due to insufficient training data or inappropriate parameter settings (e.g., underestimating stress values ​​under high wind speeds). By continuously training with a large number of historical samples, the model learns stress variation patterns under different operating conditions (e.g., stress characteristics under low rotational speed + high acceleration) and corrects its parameters using algorithms such as gradient descent, gradually reducing the deviation between predicted results and measured stresses (e.g., from ±5MPa to ±2MPa). The updated model is better suited to the complex operating conditions of actual hoisting scenarios, providing a more reliable basis for real-time monitoring of pipeline stress and early warning of safety risks.

[0169] It is worth mentioning that the network structure of the initial stress prediction model is: 3 layers of LSTM (with 64, 32 and 16 hidden units respectively) + 1 fully connected layer (outputting 1 stress peak), and the activation functions are ReLU (hidden layer) and Linear (output layer).

[0170] Training parameters: learning rate 0.001 (dynamically adjusted via Adam optimizer), number of iterations 500, batch size 32, regularization coefficient 0.0001 (to prevent overfitting).

[0171] Loss function: Root mean square error (RMSE) is used, and the formula is as follows:

[0172]

[0173] In the formula, N is the number of samples; σ is the predicted value. max,i This is the actual value.

[0174] The trained model has an RMSE ≤ 0.5 MPa and a loss function ≤ 0.02 MPa on the test set.

[0175] S34. Validate the updated stress prediction model and generate the target stress prediction model.

[0176] In this embodiment of the invention, verification refers to placing the updated model in an independent test dataset (without overlap with the training data), and evaluating the model's prediction accuracy (e.g., whether the error range is ≤2MPa), generalization ability (whether it can stably predict unseen working conditions), and robustness (whether it is affected by outliers) by comparing the stress prediction values ​​output by the model with the measured stress values ​​in the test data.

[0177] During the verification process, if the model's performance on the test set meets the preset standards (e.g., 95% of the predicted values ​​deviate from the measured values ​​by ≤3MPa), the model is confirmed as the target stress prediction model; if it does not meet the standards, the feature vector extraction method needs to be adjusted retrospectively or the model needs to be retrained. This step, through rigorous verification and screening, ensures that the target model can accurately capture the stress change patterns during the hoisting of the bottomless air conditioning water shaft pipes, providing authoritative predictive basis for subsequent real-time monitoring of stress during the hoisting process, dynamic control of the winch 8 and magnetorheological damper, and ultimately ensuring construction safety.

[0178] Step 104: Predict the stress value of the hoisting platform corresponding to the support and hanger device using the target stress prediction model.

[0179] In this embodiment of the invention, the predicted stress value refers to the magnitude of stress that the hoisting platform connected to the support device may bear at the current or future hoisting moment, calculated by the target stress prediction model. This value comprehensively reflects the mechanical effects of parameters such as winch speed, pipe height, three-dimensional acceleration and wind speed on the hoisting platform structure, and is a key indicator for judging whether the platform is within the safe load-bearing range.

[0180] The model is based on real-time input parameters of the current operating conditions (such as current wind speed of 3 m / s, winch speed of 6 r / min, etc.) and combines learned historical patterns to quickly output the stress values ​​that the platform may face. For example, when the predicted stress value approaches or exceeds the platform's maximum allowable stress (such as 235 MPa), an early warning mechanism can be triggered, prompting operators to adjust the winch speed or activate the magnetorheological damper for vibration reduction, thereby preventing the platform from deforming or breaking due to excessive stress and ensuring the structural safety of the hoisting operation.

[0181] Furthermore, step 104 includes the following sub-steps:

[0182] S41. Predict the stress value of the hoisting platform corresponding to the support and hanger device using the target stress prediction model; wherein, the calculation formula of the target stress prediction model is:

[0183]

[0184] In the formula, θ is the model parameter, and σ is the model parameter. t Let v be the stress value at time t. t Let n be the wind speed at time t. t Let h be the speed of the winch at time t. t Let t be the height of the pipe at time t.

[0185] In this embodiment of the invention, the model uses LSTM as the computational framework. It takes dynamically changing time-series parameters such as stress, wind speed, winch speed, and pipe height at time t, combined with the trained model parameters θ, as input. The LSTM network is then used to mine the temporal correlations between these parameters (e.g., the lag effect of winch speed adjustment on pipe height and stress after a sudden change in wind speed), and finally outputs the predicted stress value. This is used to assess the current and potential future stress risks of the lifting platform, providing data support for subsequent stress management and equipment operation adjustments. Specifically, a trained LSTM model is used to predict the stress situation of the lifting platform based on the current stress, environmental, equipment, and piping state parameters, guiding engineering decisions. The calculation formula for the target stress prediction model is as follows:

[0186]

[0187] In the formula, θ is the model parameter, and σ is the model parameter. t Let v be the stress value at time t. t Let n be the wind speed at time t. t Let h be the speed of the winch at time t. t Let t be the height of the pipe at time t.

[0188] Step 105: Determine whether the predicted stress value is greater than the first preset stress threshold, and adjust the speed of the winch 8 and the magnetorheological damper on the cantilever end of the winch 8 according to the determination result.

[0189] In this embodiment of the invention, the first preset stress threshold refers to a critical stress value pre-set by engineers based on the material strength (such as the yield strength of steel) and structural safety factor of the hoisting platform and support device, combined with stress safety experience from similar past hoisting projects. The first preset stress threshold is set to 112 MPa.

[0190] A magnetorheological damper is an intelligent vibration reduction device filled with magnetorheological fluid (composed of tiny magnetic particles and a base fluid). When a magnetic field of different intensities is applied, the viscosity and shear modulus of the magnetorheological fluid can change rapidly (millisecond-level response), thereby adjusting the damping force in real time and effectively suppressing vibrations at the cantilever end (such as radial sway during winch rotation or resonance caused by pipe hoisting).

[0191] Compare predicted stress values The magnitude between 112 MPa and the predicted stress value If the pressure is less than 112 MPa, further comparison with another threshold is needed to determine whether the speed of winch 8 needs to be adjusted or whether the magnetorheological damper needs to be activated. If the predicted stress value... If the pressure is greater than 112 MPa, the speed of winch 8 needs to be adjusted and the magnetorheological damper needs to be started.

[0192] Furthermore, step 105 includes the following sub-steps:

[0193] S51. Determine whether the predicted stress value is less than the second preset stress threshold.

[0194] In this embodiment of the invention, the second preset stress threshold is set to 84 MPa.

[0195] Compare predicted stress values The value between 84 MPa and 84 MPa.

[0196] S52. If so, maintain the speed of winch 8.

[0197] In this embodiment of the invention, the stress value is predicted. The pressure is less than 84MPa, maintaining the speed of winch 8, and there is no need to start the magnetorheological damper.

[0198] S53. If not, determine whether the predicted stress value is within the preset stress range.

[0199] In this embodiment of the invention, the preset stress range is (84MPa, 112MPa).

[0200] Determine the predicted stress value Does it fall within the range of (84MPa, 112MPa)?

[0201] S54. If so, then turn on the magnetorheological damper on the cantilever end of the winch 8 and adjust the magnetorheological damper.

[0202] In this embodiment of the invention, if the predicted stress value Only activate the magnetorheological damper, and adjust the magnetorheological damper according to the following formula (4).

[0203]

[0204] In the formula, 800 is the predicted stress value; 84 is the basic constant; 10 and 50 are both coefficients; |a2| is the absolute value of the comprehensive angle deviation or total angle change (such as the angle deviation of pipeline hoisting posture, the angle superposition value caused by wind speed and wind direction), reflecting the comprehensive influence of posture, environment and other factors during construction.

[0205] For example, when When |a2|=0.3g, c(t)=800+140++15=955N·s / m.

[0206] S55. If not, determine whether the predicted stress value is greater than the first preset stress threshold.

[0207] In this embodiment of the invention, the predicted stress values ​​are compared. The value between 112 MPa and 112 MPa.

[0208] S56. If so, adjust the speed of the winch 8 and the magnetorheological damper.

[0209] In this embodiment of the invention, if the predicted stress value Synchronously adjust the speed of winch 8 and the magnetorheological damper (adjust the upper limit of the damping coefficient to 1500 N·s / m). Specifically, the calculation formula for adjusting the winch speed is as follows:

[0210]

[0211] In the formula, 0.02 is the proportionality coefficient; 112 is the predicted stress value; 112 is the stress reference value; sgn(v) is the sign function, used to determine the sign attribute of the input variable v (winch speed), and the output result is 1 (when (v>0), it means the equipment is moving in the forward direction (such as the winch 8 lowering the pipe and pulling in a certain direction)), 0 (when (v=0), it means the equipment is stationary (such as the winch 8 is stationary)), (-1) (when (v<0), it means the equipment is moving in the reverse direction (such as the winch 8 retrieving the pipe and pulling in the reverse direction)).

[0212] The adjustment calculation formula for the magnetorheological damper is as follows:

[0213] When the wind is against you Then Δn' = 1.1 × 0.02 × 8 = 0.176 r / min; the rotational speed decreases from 10 r / min to 9.824 r / min, while the damping coefficient increases to 1185 N·s / m, thus doubly suppressing the stress increase.

[0214] Step 106: When the adjusted winch 8 hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, weld the water pipe to the inner wall of the bottomless air conditioning water shaft.

[0215] In this embodiment of the invention, after the speed of the winch 8 is adjusted and the magnetorheological damper is regulated, the water pipe is stably stopped at the preset installation position at the preset hoisting height (such as being precisely aligned with the water inlet and outlet of a certain floor and the horizontal distance meets the design requirements). At this time, the pipe needs to be connected to the preset fixed bracket or embedded part on the inner wall of the shaft by welding. Before welding, the rust and impurities on the pipe interface and the surface of the embedded part need to be cleaned. The connection is completed by argon arc welding for the root pass and manual electric arc welding for the fill pass, ensuring that the weld strength is not lower than that of the pipe base material (such as tensile strength ≥ 410 MPa). During the welding process, the three-dimensional acceleration of the pipe is continuously monitored (controlling the swing amplitude ≤ 5 mm) to avoid vibration affecting the welding quality.

[0216] Furthermore, step 106 includes the following sub-steps:

[0217] S61. When the adjusted winch 8 hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, align the water pipe with the reserved hole.

[0218] In this embodiment of the invention, the winch 8, after speed adjustment and damper control, has brought the pipe to a stable hoisting state. At this time, the fine-tuning function of the winch 8 (such as low-speed jogging) is used to ensure that the pipe end is precisely aligned in space with the reserved hole on the corresponding floor of the vertical shaft (including a horizontal center deviation ≤ 5mm and a vertical axis coincidence ≥ 95%). This ensures that the pipe can smoothly pass through the hole, avoiding collision damage between the outer wall of the pipe and the edge of the hole due to misalignment. It also lays the foundation for subsequent sealing construction of the gap between the pipe and the hole (such as filling with fireproof sealing material) and pipe fixing (welding to the horizontal support), realizing the transition from "hoisting stability" to "installation precision", ensuring the continuity of the vertical pipe of the air conditioning water system with the horizontal pipe of the floor and the integrity of the building structure.

[0219] S62. Weld the water pipes to the inner wall of the bottomless air conditioning water shaft according to the preset welding rules.

[0220] In this embodiment of the invention, the preset welding rules refer to the standardized operating procedures formulated before the project based on parameters such as pipe material (e.g., galvanized steel pipe, seamless steel pipe), pipe diameter (e.g., DN150, DN200), material of embedded parts in the inner wall of the shaft (mostly angle steel or steel plate 7), and system working pressure (e.g., 1.0MPa). These typically include welding methods (e.g., manual arc welding, argon arc welding for the root pass), electrode type (e.g., Q235 steel with E43 series electrodes), weld height (not less than the pipe wall thickness), welding current (set according to electrode diameter, e.g., 90-130A for 3.2mm electrodes), welding sequence (e.g., symmetrical segmented welding to avoid deformation), and post-weld inspection requirements (e.g., no porosity or slag inclusions in the appearance, and water pressure test if necessary).

[0221] During construction, welding rules must be strictly followed. Water pipes that have been aligned with the pre-drilled holes and are in the preset installation positions must be welded to the fixed supports or embedded parts on the inner wall of the shaft to form a whole. This ensures that the pipes are stably supported inside the shaft, can withstand the loads generated by their own weight and water flow pressure, and can prevent water leakage at the joints through welding seals. At the same time, it ensures that the rigid connection between the pipes and the shaft structure meets the seismic requirements (such as not displacing or falling off during an earthquake). Ultimately, this achieves the safe fixation of the pipes inside the shaft and the reliable realization of the system functions.

[0222] It is worth mentioning that the welding of water pipes must meet the following requirements:

[0223] 1. The type, specifications, and performance of pipeline welding materials should meet the design requirements.

[0224] 2. The weld bevel type and dimensions of the pipes shall conform to the provisions of Table 1 below:

[0225] Table 1. Specifications for Welding Groove Types and Dimensions

[0226]

[0227] 3. The allowable deviation for the straightness of the joint should be 1%, and the total deviation should not exceed 10mm. The fixed weld joints of the pipes and equipment should be far away from the equipment and should not coincide with the center line of the equipment interface.

[0228] 4. The distance between the butt weld of the pipeline and the support or hanger should be greater than 50mm.

[0229] 5. Pipeline welding shall meet the following requirements:

[0230] (1) The pipe material is Q235, and E4303 welding rods are used for manual arc welding.

[0231] (2) The number of welding layers in a weld is related to the diameter of the welding rod, the current, the pipe wall thickness, the weld location, and the bevel type. The selection of welding rods and current is shown in Table 2 below:

[0232] Table 2. Specifications for pipe wall thickness, number of welding layers, electrode diameter, and welding current for welding electrodes.

[0233]

[0234] (3) Welding electrodes must not show signs of coating peeling, dirt, aging, dampness, or rust. Welding electrodes must be stored in a dedicated, dry container. To reduce internal stress at the weld, measures should be taken to protect against wind and rain during welding, and drafts should be prevented inside the pipes.

[0235] (4) When aligning pipes, use brackets or hangers to adjust the center. Keep the space at the open end without causing displacement of the center of the two pipes. When aligning pipes, the outer walls must be flush. Use a steel ruler close to the outer surface of one side of the pipe and measure at the outer surface of the other side of the pipe 200mm away from the weld. The outer walls of the pipes and fittings should also be flush.

[0236] (5) The tack welding of the weldment assembly shall comply with the following provisions:

[0237] A. The tack welds should be inspected before welding, and if defects are found, they should be repaired before welding.

[0238] B. The same welding materials and welding process as the root pass should be used;

[0239] C. Spot welding is not allowed at the longitudinal weld seams of spiral pipes and straight seam pipes;

[0240] D. Tack welds should be evenly distributed, and the length and number of tack welds should conform to the provisions of Table 3 below.

[0241] Table 3. Spot Welding Specifications

[0242] Nominal pipe diameter (mm) Welding length (mm) Spot welding number 200～300 10～20 4 350～500 15～30 5

[0243] (6) After the steel pipes are aligned, spot welding is performed. The thickness of the spot weld is the same as that of the first layer of welding, but does not exceed 70% of the pipe wall thickness. The root of the weld must be fully welded, and the spot weld positions are uniform and symmetrical.

[0244] (7) Multi-layer welding shall comply with the following provisions:

[0245] When using electric welding to weld beveled pipes and pipe fittings, the number of welding layers must not be less than two. The welding sequence and method for pipe joints should not generate additional stress.

[0246] A. The root of the first layer of weld should be evenly penetrated and should not burn through. The joints of each layer of weld should be staggered, and the thickness of each layer should be 0.8 to 1.2 times the diameter of the welding rod. Arc striking is prohibited on non-welding surfaces of the workpiece.

[0247] B. Before welding the next layer, thoroughly remove the slag between layers using a grinding wheel and wire brush, and allow the pipe to cool naturally before proceeding with the next layer. The arc initiation and extinguishing points of each layer should be staggered by 20mm or 30°. If surface defects are found between layers, repair and weld them promptly.

[0248] 6. Do not strike the weld before it has cooled to ambient temperature.

[0249] 7. After on-site welding of pipelines, the welded surface should be cleaned and a visual quality inspection should be performed. The appearance quality of the weld and the allowable deviations for weld reinforcement and root protrusion should conform to the provisions of Table 4 below:

[0250] Table 4. Welding Surface Specifications

[0251]

[0252] 8. The allowable deviations for weld reinforcement and root protrusion in pipelines shall conform to the provisions of Table 5 below:

[0253] Table 5. Specifications for Pipeline Welds

[0254] Base material thickness ≤6 ＞6，≤13 Yu Gao and the root protrusion ≤2 ≤4

[0255] 9. The location of the weld shall comply with the following provisions:

[0256] (1) The location should be reasonably selected. The weld should be located in a position that facilitates welding, inspection and maintenance, and should avoid areas of stress concentration.

[0257] (2) No cross-shaped welds are allowed in any part of the pipeline;

[0258] (3) There shall be no circumferential welds on the pipes at the supports;

[0259] (4) When welded pipes are joined together and containers and steel plate roll pipes are assembled, the distance between longitudinal welds should not be less than 100mm.

[0260] (5) The distance between the centers of two adjacent circumferential welds of the pipeline should be greater than the outer diameter of the steel pipe and not less than 150 mm;

[0261] (6) When welding branch pipes onto welded steel pipes, the distance between the outer wall of the branch pipe and the center of other welds should be greater than the outer diameter of the branch pipe and not less than 70 mm.

[0262] 10. The quality inspection of pipe ends shall comply with the following provisions:

[0263] (1) The cut end face of the steel pipe should be flat and free from defects such as cracks and laps, and burrs and slag should be cleaned.

[0264] (2) The allowable deviations for pipe end processing shall conform to the provisions of Table 6 below.

[0265] Table 6. Specifications for Pipe End Processing

[0266]

[0267] 11. When steel pipes or fittings with the same outer diameter and wall thickness are matched, the allowable deviation of misalignment should conform to the provisions of Table 7 below.

[0268] Table 7. Fitting Matching Requirements

[0269]

[0270] 12. When pipe ends with different wall thicknesses are joined, if the thickness of the thinner part is less than or equal to 4mm and the thickness difference is greater than 3mm, or if the thickness of the thinner part is greater than 4mm and the thickness difference is greater than 30% of the thickness of the thinner part or greater than 5mm, the thicker part should be thinned.

[0271] 13. It is prohibited to use methods such as heating both sides of the weld to extend the length of the pipe, forcefully tightening the bolts, welding metal fillers, or deforming the compensator to force the butt welding.

[0272] 14. Before beveling, the external dimensions and quality of the bevel should be checked. The surface of the bevel should be neat and smooth, and free from cracks, rust, slag, and other debris that may affect the welding quality. Any unqualified pipe ends should be repaired.

[0273] 15. Welding parts that are damp or covered with ice and snow should be cleaned and dried before welding.

[0274] 16. Welding quality inspection shall be carried out in the following order:

[0275] (1) Matching quality inspection;

[0276] (2) Appearance quality inspection;

[0277] (3) Non-destructive testing;

[0278] (4) Strength and tightness test.

[0279] 17. Welds shall undergo 100% visual quality inspection and shall meet the following requirements:

[0280] (1) The weld surface should be cleaned, the weld should be complete and smooth, and there should be no defects such as cracks, pores, slag inclusions and fusion spatters.

[0281] (2) The height of the weld should not be less than the surface of the base metal, and it should smoothly transition with the base metal;

[0282] (3) The reinforcement height shall not exceed 30% of the wall thickness of the welded part, and shall be less than or equal to 5 mm. The weld width shall extend 1.5 mm to 2.0 mm beyond the bevel edge;

[0283] (4) The undercut depth should be less than 0.5 mm, and the undercut length of each weld should not exceed 10% of the total length of the weld.

[0284] (5) The depth of the surface depression shall not exceed 0.5 mm, and the length of the surface depression of each weld shall not exceed 10% of the total length of the weld.

[0285] Please see Figure 7 , Figure 7 This is a structural block diagram of a bottomless air conditioning water shaft pipeline installation system provided in Embodiment 2 of the present invention.

[0286] This invention provides a bottomless air conditioning water shaft pipe installation system, comprising:

[0287] The acquisition module 201 is used to acquire the vertical shaft information of the bottomless air conditioning water vertical shaft, and install the support and hanger device and the winch 8 on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information;

[0288] The hoisting module 202 is used to hoist water pipes from top to bottom using the cantilever end of the winch 8;

[0289] The data acquisition module 203 is used to acquire the three-dimensional acceleration of the water pipe, the rotation speed of the winch 8, the preset hoisting height and the current wind speed during the hoisting process, and input them into the preset target stress prediction model.

[0290] The prediction module 204 is used to predict the predicted stress value of the hoisting platform corresponding to the support and hanger device through the target stress prediction model.

[0291] The judgment module 205 is used to judge whether the predicted stress value is greater than the first preset stress threshold, and adjust the speed of the winch 8 and the magnetorheological damper on the cantilever end of the winch 8 according to the judgment result.

[0292] The welding module 206 is used to weld the water pipe to the inner wall of the bottomless air conditioning water shaft when the adjusted winch 8 hoists the water pipe to the preset installation position.

[0293] Furthermore, the acquisition module 201 includes:

[0294] The acquisition submodule is used to acquire information about the bottomless air conditioning water shaft.

[0295] The preset position submodule is used to determine the preset hanger position, preset hoisting height, and preset installation position of the bottomless air conditioning water shaft based on the shaft information;

[0296] The layout planning submodule is used to plan the layout of the inner wall of the bottomless air conditioning water vertical shaft corresponding to the reserved holes corresponding to the vertical shaft information;

[0297] The support and hanger module is used to determine the support and hanger device that matches the layout plan of the inner wall of the bottomless air conditioning water shaft; wherein the support and hanger device includes horizontal support, support diagonal brace and hanger platform;

[0298] The installation submodule is used to install horizontal supports, support braces and hanger platforms at the preset hanger positions in the bottomless air conditioning water vertical shaft according to the shaft information;

[0299] Install the winch 8 submodule for mounting the winch 8 on the gantry platform.

[0300] Furthermore, the acquisition module 202 includes:

[0301] The first acquisition submodule is used to install acceleration sensors in the water pipes and acquire the three-dimensional acceleration of the water pipes during the hoisting process;

[0302] The second acquisition submodule is used to acquire the rotational speed of the winch 8 through the speed sensor corresponding to the winch 8;

[0303] The third data acquisition submodule is used to install a wind speed sensor on the outside of the opening of the bottomless air conditioning water shaft and to acquire the current wind speed of the bottomless air conditioning water shaft.

[0304] The preprocessing submodule is used to preprocess the three-dimensional acceleration of the water pipes, the rotational speed of the winch 8, the current wind speed, and the preset hoisting height during the hoisting process, and input the preset target stress prediction model.

[0305] Furthermore, this system also includes:

[0306] The data acquisition submodule is used to acquire historical engineering measured data and historical wind speed; among which, the historical engineering measured data includes historical winch speed, historical pipe height and historical three-dimensional acceleration;

[0307] The extraction submodule is used to preprocess historical winch speed, historical pipe height, historical three-dimensional acceleration and historical wind speed and extract feature vectors to generate winch speed feature vector, pipe height feature vector, three-dimensional acceleration feature vector and wind speed feature vector and input them into the preset initial stress prediction model;

[0308] The training submodule is used to train the initial stress prediction model and generate an updated stress prediction model.

[0309] The validation submodule is used to validate the updated stress prediction model and generate the target stress prediction model.

[0310] Furthermore, the prediction module 204 includes:

[0311] The prediction submodule is used to predict the stress value of the hoisting platform corresponding to the support and hanger device using the target stress prediction model; wherein, the calculation formula of the target stress prediction model is:

[0312]

[0313] In the formula, θ is the model parameter, and σ is the model parameter. t Let v be the stress value at time t. t Let n be the wind speed at time t. t Let h be the speed of the winch at time t. t Let t be the height of the pipe at time t.

[0314] Furthermore, the judgment module 205 includes:

[0315] The first judgment submodule is used to determine whether the predicted stress value is less than the second preset stress threshold.

[0316] The holding submodule is used to maintain the speed of winch 8 if so;

[0317] The second judgment submodule is used to determine whether the predicted stress value is within the preset stress range if no.

[0318] The activation submodule is used to activate the magnetorheological damper on the cantilever end of the winch 8 if the condition is met, and to adjust the magnetorheological damper.

[0319] The third judgment submodule is used to determine whether the predicted stress value is greater than the first preset stress threshold if no.

[0320] The adjustment submodule is used to adjust the speed of the winch 8 and the magnetorheological damper if necessary.

[0321] Furthermore, the welding module 206 includes:

[0322] The alignment submodule is used to align the water pipes with the reserved holes when the adjusted winch 8 hoists the water pipes to the preset installation position of the bottomless air conditioning water shaft.

[0323] The welding submodule is used to weld water pipes to the inner wall of the bottomless air conditioning water shaft according to preset welding rules.

[0324] Embodiment 3 of the present invention provides a computer-readable storage medium storing a computer program thereon, which, when executed, implements the bottomless air conditioning water shaft pipe installation method as described in any embodiment of the present invention.

[0325] Embodiment 4 of the present invention provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer performs the bottomless air conditioning water shaft pipe installation method as described in any embodiment of the present invention.

[0326] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0327] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0328] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0329] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0330] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0331] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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. Such 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 installing air conditioning water vertical shaft pipes without a bottom plate, characterized in that, include: Obtain the vertical shaft information of the bottomless air conditioning water vertical shaft, and install the support and hanger device and the winch on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information; The water pipe is hoisted from top to bottom using the cantilever end of the winch; The three-dimensional acceleration of the water pipe, the rotational speed of the winch, the preset hoisting height, and the current wind speed are collected during the hoisting process and input into the preset target stress prediction model; The target stress prediction model is used to predict the stress value of the hoisting platform corresponding to the support and hanger device. Determine whether the predicted stress value is greater than a first preset stress threshold, and adjust the speed of the winch and the magnetorheological damper on the cantilever end of the winch according to the determination result. When the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, the water pipe is welded to the inner wall of the bottomless air conditioning water shaft.

2. The method for installing bottomless air conditioning water vertical shaft pipes according to claim 1, characterized in that, The step of obtaining the vertical shaft information of the bottomless air conditioning water vertical shaft, and installing the support and hanger device and the winch on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information, includes: Obtain information about the bottomless air conditioning water shaft; Based on the shaft information, the preset hanger position, preset hoisting height, and preset installation position of the bottomless air conditioning water shaft are determined; Based on the reserved holes corresponding to the shaft information, the inner walls of the bottomless air conditioning water shaft corresponding to the preset hanger positions and the preset installation positions are arranged and planned. Based on the layout plan of the inner wall of the bottomless air conditioning water shaft, a support and hanger device adapted to the layout plan is determined; wherein, the support and hanger device includes a horizontal support, a support brace, and a hanger platform; Install the horizontal support, the support diagonal brace, and the hanger platform at the preset hanger position in the bottomless air conditioning water vertical shaft according to the shaft information; A winch is installed on the suspension platform.

3. The method for installing bottomless air conditioning water vertical shaft pipes according to claim 1, characterized in that, The process of collecting three-dimensional acceleration during hoisting, the rotational speed of the winch, the preset hoisting height, and the current wind speed, and inputting them into a preset target stress prediction model, includes: An acceleration sensor is installed in the water pipe to collect the three-dimensional acceleration of the water pipe during the hoisting process; The rotational speed of the winch is collected by the speed sensor corresponding to the winch. A wind speed sensor is installed on the outside of the opening of the bottomless air conditioning water shaft to collect the current wind speed of the bottomless air conditioning water shaft; The three-dimensional acceleration of the water pipe, the rotational speed of the winch, the current wind speed, and the preset hoisting height during the hoisting process are preprocessed and input into a preset target stress prediction model.

4. The method for installing bottomless air conditioning water vertical shaft pipes according to claim 1, characterized in that, Also includes: Acquire historical engineering measured data and historical wind speed; wherein, the historical engineering measured data includes historical winch speed, historical pipe height, and historical three-dimensional acceleration; The historical winch speed, historical pipe height, historical three-dimensional acceleration, and historical wind speed are preprocessed and feature vectors are extracted to generate winch speed feature vector, pipe height feature vector, three-dimensional acceleration feature vector, and wind speed feature vector, which are then input into a preset initial stress prediction model. The initial stress prediction model is trained to generate an updated stress prediction model; The updated stress prediction model is validated, and the target stress prediction model is generated.

5. The method for installing bottomless air conditioning water vertical shaft pipes according to claim 1, characterized in that, The step of predicting the predicted stress value of the hoisting platform corresponding to the support and hanger device using the target stress prediction model includes: The target stress prediction model is used to predict the stress value of the hoisting platform corresponding to the support and hanger device; wherein, the calculation formula of the target stress prediction model is: In the formula, θ is the model parameter, and σ is the model parameter. t Let v be the stress value at time t. t Let n be the wind speed at time t. t Let h be the speed of the winch at time t. t Let t be the height of the pipe at time t.

6. The method for installing bottomless air conditioning water vertical shaft pipes according to claim 1, characterized in that, The step of determining whether the predicted stress value is greater than a first preset stress threshold, and adjusting the speed of the winch and the magnetorheological damper on the cantilever end of the winch according to the determination result, includes: Determine whether the predicted stress value is less than a second preset stress threshold; If so, then maintain the speed of the winch; If not, determine whether the predicted stress value is within the preset stress range; If so, then activate the magnetorheological damper on the cantilever end of the winch and adjust the magnetorheological damper. If not, then determine whether the predicted stress value is greater than the first preset stress threshold; If so, adjust the speed of the winch and the magnetorheological damper.

7. The method for installing bottomless air conditioning water vertical shaft pipes according to claim 2, characterized in that, When the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, welding the water pipe to the inner wall of the bottomless air conditioning water shaft includes: When the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft, align the water pipe with the reserved hole; The water pipe is welded to the inner wall of the bottomless air conditioning water shaft according to the preset welding rules.

8. A bottomless air conditioning water shaft pipe installation system, characterized in that, include: The acquisition module is used to acquire the vertical shaft information of the bottomless air conditioning water vertical shaft, and install the support and hanger device and the winch on the support and hanger device at the preset hanger position of the bottomless air conditioning water vertical shaft according to the vertical shaft information; The hoisting module is used to hoist water pipes from top to bottom using the cantilever end of the winch; The data acquisition module is used to acquire the three-dimensional acceleration of the water pipe, the rotational speed of the winch, the preset hoisting height, and the current wind speed during the hoisting process, and input them into the preset target stress prediction model. The prediction module is used to predict the predicted stress value of the hoisting platform corresponding to the support and hanger device through the target stress prediction model; The judgment module is used to determine whether the predicted stress value is greater than a first preset stress threshold, and adjust the speed of the winch and the magnetorheological damper on the cantilever end of the winch according to the judgment result. The welding module is used to weld the water pipe to the inner wall of the bottomless air conditioning water shaft when the adjusted winch hoists the water pipe to the preset installation position of the bottomless air conditioning water shaft.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed, it implements the bottomless air conditioning water shaft pipeline installation method as described in any one of claims 1-7.

10. A computer program product, characterized in that, The computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, wherein when the program instructions are executed by a computer, the computer performs the bottomless air conditioning water shaft pipe installation method as described in any one of claims 1-7.

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