A large vertical wind tunnel power system and fairing construction process suitable for wind wave combined deep water laboratory

Abstract

This invention discloses a construction process for a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, relating to the field of experimental equipment development technology. The process includes: hoisting the heavy power system into place using the open space above the building before the laboratory's civil structure is topped out; transporting the heavy power system to the second-floor prefabrication area for positioning and installation of heavy components; assembling the guide vanes sequentially according to a pre-designed installation order; and finally, after all heavy components and guide vanes are installed and pass inspection, carrying out the final topping-out construction of the civil structure. This process is carried out simultaneously with civil construction, is not limited by site conditions, significantly improves construction efficiency, reduces costs, and significantly shortens the construction period.

Description

Technical Field

[0001] This invention relates to the field of experimental equipment development technology, specifically to a large vertical wind tunnel power system and guide vane construction process suitable for use in a combined wind and wave deep-water laboratory. Background Technology

[0002] Currently, wind tunnel experimental devices generally adopt a horizontal circulation layout, where airflow circulates within a plane. However, this layout requires a large area, and in situations where land resources are scarce, construction costs are high, making it uneconomical. Therefore, vertical wind tunnels (with vertically circulating airflow) are gradually gaining attention, as their compact structure effectively reduces the required floor space.

[0003] However, vertical wind tunnels face challenges in the installation of their power systems and guide vanes during construction, especially for specialized applications such as combined wind and wave deep-water laboratories. Due to the limited space beneath the wind tunnel, which is often occupied by an experimental water tank, traditional installation methods are unsuitable. Currently, the two main construction methods for vertical wind tunnel power systems are as follows:

[0004] 1. Top partial elevation method, as described in patent ZL201610412134.3: This method involves partially elevating the top truss of the wind tunnel return channel to create a transport channel, enabling hoisting equipment to laterally transport the power system from the test hall floor to the installation position. However, this requires partial elevation of the building, affecting the overall aesthetics and increasing architectural design and construction costs. Furthermore, since the wind tunnel of the wind-wave combined deep-water laboratory is located below an experimental water tank, space is limited, and sufficient hoisting operation space cannot be provided. If the wind tunnel is large and the power system components are heavy, this method is difficult to meet the hoisting requirements.

[0005] 2. Internal Second-Level Platform Installation Method: This method avoids raising the top-level truss and instead utilizes the platform on the second level of the wind tunnel for installation. The power system and guide vane components are transported to the second level by crane and then assembled. The problems are that the wind tunnel power system is located on the second level, and the components are large and heavy, potentially damaging the second-level structure during transportation; furthermore, the power system needs to be disassembled into smaller components for transport, increasing assembly costs and posing a risk of lost or damaged parts; for ultra-large wind tunnels (such as those required for the combined wind and wave deep-water laboratory), this method struggles to guarantee installation accuracy and efficiency.

[0006] In summary, existing methods for installing vertical wind tunnel power systems suffer from problems such as high construction costs, high construction difficulty, limited hoisting space, and high transportation risks. Summary of the Invention

[0007] The purpose of this invention is to provide a construction process for a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory. This process can be carried out simultaneously with civil construction, is not limited by site conditions, greatly improves construction efficiency, reduces costs, and significantly shortens the construction period.

[0008] To achieve the above objectives, the technical solution of this application is: a construction process for a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, comprising:

[0009] Before the laboratory's civil structure was completed, the hoisting operation of the heavy power system was carried out using the open space on the upper part of the building.

[0010] The heavy power system was hoisted to the second-floor prefabrication area to complete the positioning and installation of heavy components;

[0011] The guide vanes are assembled sequentially according to the pre-designed installation order;

[0012] After all heavy components and guide vanes have been installed and passed inspection, the final capping construction of the civil structure will proceed.

[0013] As a preferred embodiment of the present invention, the following operations are performed before the positioning and installation of heavy components:

[0014] Complete the sealing plate construction under the truss of the wind-generating platform to form a stable working base surface;

[0015] A prefabrication area is planned at the construction site to centrally store splicing materials, prefabricated components, main motors, welding and assembly equipment, and various construction tools for heavy power systems.

[0016] Off-site mobile cranes were used to transport welding and assembly equipment and various construction tools from the prefabrication site to the truss working surface of the ventilation platform in batches.

[0017] Temporary work platforms were set up on the truss of the wind-generating platform.

[0018] As a preferred embodiment of the present invention, the temporary work platform includes: a steel temporary platform, a modular temporary guide rail, and a movable temporary gantry.

[0019] As a preferred embodiment of the present invention, the positioning and installation method of the heavy component is as follows:

[0020] The assembly materials, prefabricated components, and main motor of the heavy power system are transferred to the designated temporary storage area on the steel temporary platform by an off-site truck crane.

[0021] Using the movable temporary gantry on the truss, each component is hoisted to the power system installation area along the modular temporary guide rails in the installation sequence;

[0022] A total station was used for positioning and installation in the power system area to ensure installation accuracy.

[0023] As a preferred embodiment of the present invention, after the heavy components are positioned and installed, the steel temporary platform, modular temporary guide rails, and movable temporary gantry are dismantled in sequence to restore the original state of the wind-generating platform truss.

[0024] As a preferred embodiment of the present invention, the following operations are performed before assembling the guide vane:

[0025] The trench between the fourth corner of the wind tunnel building and the surrounding ground was treated by filling and compacting it or laying heavy steel frames to transform it into a dedicated transport channel for guide vanes.

[0026] The structural strength of each connection part of the wind tunnel was checked to ensure that it meets the static mass load and dynamic aerodynamic load requirements after the guide vanes are installed.

[0027] As a preferred embodiment of the present invention, the guide vane is transported to the installation area via a dedicated entrance located at the fourth corner using an off-site mobile crane.

[0028] As a preferred embodiment of the present invention, the guide vanes are assembled sequentially according to a pre-designed installation order, specifically as follows:

[0029] First, install the guide vanes at the second and third corners;

[0030] The installation of the first corner guide vane was then carried out.

[0031] The installation of the fourth corner guide vane will proceed without affecting the entry and installation of equipment in the wind tunnel test section.

[0032] As a preferred embodiment of the present invention, the installation of the guide vanes is coordinated with the equipment arrival plan of the wind tunnel test section to avoid interference from cross-operations.

[0033] As a preferred embodiment of the present invention, the vertical wind tunnel power system includes a wind tunnel power section located on the second floor and a wind tunnel test section located on the first floor, wherein the wind tunnel power section and the wind tunnel test section are arranged alternately.

[0034] By adopting the above technical solutions, this invention achieves the following technical effects: modular prefabrication during the installation of heavy-duty power systems improves the controllability of construction quality; systematic arrangement of temporary facilities ensures operational safety; segmented hoisting process reduces the difficulty of installing large equipment; optimization of transportation channels and installation sequence during guide vane assembly solves the transportation and installation problems of guide vanes; phased construction scheme improves operational efficiency and safety; and coordinated management of guide vane and test section construction ensures the overall project progress. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a construction process flow diagram for a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory.

[0037] Figure 2 This is a schematic diagram showing the arrangement of temporary work platforms on the truss of the air-generating platform;

[0038] Figure 3 This is a diagram showing the process of an off-site mobile crane transferring a heavy power system to a temporary steel platform.

[0039] Figure 4 This is a schematic diagram of the power system area installation;

[0040] Figure 5 This is a schematic diagram of the laboratory's civil engineering structure capping.

[0041] Figure 6 This is a schematic diagram showing the positions of the guide vanes at each corner of the wind tunnel.

[0042] The numbers in the diagram are explained as follows: 1. Ventilation platform truss; 2. Truck crane; 3. Temporary steel platform; 4. Movable temporary gantry. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0045] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] Please see Figure 1 This embodiment provides a construction process for a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, which includes a heavy power system installation step and a guide vane assembly step.

[0048] The installation steps for the heavy-duty power system include:

[0049] S11. Civil Engineering Collaborative Construction Phase: Before the laboratory's civil structure is topped out, make full use of the open space above the building to carry out the hoisting operation of the heavy power system. Simultaneously, complete the sealing plate construction under the wind-generating platform truss to form a stable working base.

[0050] S12. Prefabrication site layout: A dedicated prefabrication site shall be planned at the construction site to centrally store the splicing materials, prefabricated components, main motors, welding and assembly equipment and various construction tools for heavy power systems.

[0051] S13. Equipment transfer phase: The welding and assembly equipment and various construction tools in the prefabrication site are transferred to the truss working face of the wind-generating platform in batches using off-site truck cranes.

[0052] S14. Temporary work platform construction: A temporary work platform system is arranged on the wind-generating platform truss, including a steel temporary platform, modular temporary guide rails and a movable temporary gantry;

[0053] S15. Component hoisting and installation:

[0054] (1) The splicing materials, prefabricated components and main motor of the heavy power system are transferred to the designated temporary storage area on the steel temporary platform by off-site truck crane;

[0055] (2) Using the movable temporary gantry on the truss, each component is hoisted to the power system installation area along the modular temporary guide rail according to the predetermined installation sequence;

[0056] (3) Use a total station in the power system area for precise positioning and installation to ensure that the installation accuracy meets the design requirements.

[0057] S16. Finishing work: After all heavy components are positioned and installed, dismantle the steel temporary platform, modular temporary guide rails and movable temporary gantry in sequence, and restore the original state of the wind-generating platform truss.

[0058] The above steps, through optimizing the construction process and adopting modular temporary facilities, enable the efficient and precise installation of heavy-duty power systems, making them particularly suitable for special construction projects such as large wind tunnels.

[0059] The assembly steps of the guide vane include:

[0060] S21. Pre-construction preparation stage:

[0061] (1) The trench between the fourth corner of the wind tunnel building and the surrounding ground was treated by filling and compacting or laying heavy steel frames to transform it into a special transportation channel for guide plates.

[0062] (2) Perform structural strength verification on each connection part of the wind tunnel to ensure that it meets the static mass load and dynamic aerodynamic load requirements after the guide vanes are installed;

[0063] S22. Staged installation of guide vanes:

[0064] (1) Prioritize the installation of the guide vanes at the second and third corners;

[0065] (2) Then the installation of the first corner guide vane was carried out;

[0066] (3) Finally, on the premise of ensuring that the equipment in the wind tunnel test section is brought to the site and the installation work is not affected, the fourth corner guide vane is installed.

[0067] S23. Construction Coordination and Management:

[0068] Throughout the installation of the guide vanes, coordination and cooperation were maintained with the equipment arrival plan of the wind tunnel test section. Scientific construction organization design was used to avoid interference from cross-operations, ensuring construction safety and efficiency.

[0069] In this embodiment, the vertical wind tunnel power system includes a wind tunnel power section located on the second floor and a wind tunnel test section located on the first floor. The wind tunnel power section and the wind tunnel test section are staggered, achieving functional modular separation through vertical layering and avoiding the waste of planar space in traditional horizontal layouts. Compared to horizontal circulating wind tunnels, the vertical layout can save approximately 30%-50% of the land area, making it particularly suitable for areas with limited land resources. The staggered layout of the power section and the test section shortens the airflow circulation path, reducing energy loss by 15%-20% compared to traditional horizontal wind tunnels; utilizing the gravitational potential energy generated by the vertical height difference to assist in airflow acceleration can reduce drive energy consumption by approximately 10%.

[0070] This invention avoids the problems of cumbersome construction process, long construction period and high construction cost in existing construction technology.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 this application.

Claims

1. A construction process for a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, characterized in that, include: Before the laboratory's civil structure was completed, the hoisting operation of the heavy power system was carried out using the open space on the upper part of the building. The heavy power system was hoisted to the second-floor prefabrication area to complete the positioning and installation of heavy components; The guide vanes are assembled sequentially according to the pre-designed installation order; After all heavy components and guide vanes have been installed and passed inspection, the final capping of the civil structure will be carried out. Before locating and installing heavy components, perform the following operations: Complete the sealing plate construction under the truss of the wind-generating platform to form a stable working base surface; A prefabrication area is planned at the construction site to centrally store splicing materials, prefabricated components, main motors, welding and assembly equipment, and various construction tools for heavy power systems. Off-site mobile cranes were used to transport welding and assembly equipment and various construction tools from the prefabrication site to the truss working surface of the ventilation platform in batches. Temporary work platforms were set up on the truss of the air-generating platform; The temporary work platform includes: a steel temporary platform, modular temporary guide rails, and a movable temporary gantry; The positioning and installation method for heavy components is as follows: The assembly materials, prefabricated components, and main motor of the heavy power system are transferred to the designated temporary storage area on the steel temporary platform by an off-site truck crane. Using the movable temporary gantry on the truss, each component is hoisted to the power system installation area along the modular temporary guide rails in the installation sequence; A total station was used for positioning and installation in the power system area to ensure installation accuracy. The guide vanes are assembled sequentially according to the pre-designed installation order, specifically as follows: First, install the guide vanes at the second and third corners; The installation of the first corner guide vane was then carried out. The installation of the fourth corner guide vane will proceed without affecting the entry and installation of equipment in the wind tunnel test section.

2. The construction process of a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, as described in claim 1, is characterized in that... After the heavy components are positioned and installed, the steel temporary platform, modular temporary guide rails, and movable temporary gantry are dismantled in sequence to restore the original state of the wind-generating platform truss.

3. The construction process of a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, as described in claim 1, is characterized in that... The following steps should be performed before assembling the air guide vanes: The trench between the fourth corner of the wind tunnel building and the surrounding ground was treated by filling and compacting it or laying heavy steel frames to transform it into a dedicated transport channel for guide vanes. The structural strength of each connection part of the wind tunnel was checked to ensure that it meets the static mass load and dynamic aerodynamic load requirements after the guide vanes are installed.

4. The construction process of a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, as described in claim 1, is characterized in that... Using an off-site mobile crane, the guide vanes were lifted to the installation area through a dedicated entrance at the fourth corner.

5. The construction process of a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, as described in claim 1, is characterized in that... During the installation of the guide vanes, coordination with the equipment arrival plan of the wind tunnel test section should be carried out to avoid interference from cross-operations.

6. The construction process of a large vertical wind tunnel power system and guide vanes suitable for use in a combined wind and wave deep-water laboratory, as described in claim 1, is characterized in that... The vertical wind tunnel power system includes a wind tunnel power section located on the second floor and a wind tunnel test section located on the first floor, with the wind tunnel power section and the wind tunnel test section being arranged alternately.

Images