Air flow reverse thrust active type wind-resistant and vibration-proof device with adjustable spray pipe direction for high-rise building

Abstract

The invention discloses a high-rise building spray pipe direction adjustable airflow reverse thrust active wind-resistant and vibration-proof device, and belongs to the technical field of wind-resistant and vibration-proof devices. The device comprises a supporting structure, a pipeline, a spraying pipe, a holder, a rotating shaft, a spraying pipe fixing support, a hose, an air storage chamber, an air pressure pump, a controller, a strain gauge and a wind power detector, the supporting structure is fixed to a steel bar frame of the high-rise building, the pipeline is installed and fixed to the supporting structure, and the spraying pipe is installed and fixed to the spraying pipe fixing support through the rotating shaft and internally communicated; the air pipe is connected with the pipeline and the pneumatic pump, the pneumatic pump is connected with the air storage chamber through the air pipe, the strain gauge is fixed to the side face of the high-rise building and used for detecting deformation of the high-rise building, and the wind power detector is installed on the top of the high-rise building and used for detecting the stress direction of the high-rise building. And the controller is used for controlling the flow of gas flowing into the pipeline from the pneumatic pump and the rotation angle of the spray pipe. The invention provides a new thought for solving the wind-resistant and vibration-proof problems of the high-rise building, and has the advantages of simple structure, lower cost and practicability.

Description

Technical Field

[0001] The invention belongs to the technical field of wind-proof and vibration-proof devices, in particular to an active wind-proof and vibration-proof device with adjustable airflow reverse thrust of a nozzle of a high-rise building. Background Art

[0002] With the development of society and the growth of population, the establishment of high-rise buildings enables people to make better use of high-altitude spaces. However, due to their long natural vibration cycle and small damping, high-rise buildings are very sensitive to wind loads, and the safety issues exposed by high-rise buildings are becoming more and more frequent. As the natural environment is destroyed, various natural disasters also occur frequently, such as super typhoons, which also makes the problem of wind and vibration resistance of high-rise buildings more concerned. For the wind and vibration resistance of high-rise buildings, it is now common to install hundreds of tons of wind dampers inside the building, which is extremely expensive. High-rise buildings must not only meet design specifications, but also be economical and efficient. Therefore, it is an important social issue to carry out wind and vibration resistance of high-rise buildings in a practical and efficient manner. The application of the present invention to high-rise buildings will be able to solve the problem of wind and vibration resistance of high-rise buildings in a low-cost, simple and efficient manner. Summary of the invention

[0003] The purpose of the present invention is to provide a two-way airflow reverse thrust active wind and vibration resistance device for high-rise buildings, so as to achieve the purpose of wind and vibration resistance for high-rise buildings with high efficiency and low cost.

[0004] The technical solution to achieve the purpose of the present invention is: A two-way airflow reverse thrust active wind-resistant and vibration-proof device for a high-rise building, characterized in that it includes a supporting structure, a pipeline, a nozzle, a nozzle fixing bracket, a rotating shaft, a hose, an air storage chamber, an air pressure pump, a controller, a strain gauge and a wind force detector. The supporting structure is fixed to a steel frame at the top of the high-rise building. The pipeline is installed and fixed to the top and middle of the supporting structure. The nozzle is installed and fixed to the nozzle fixing bracket through a rotating shaft and is internally connected. The nozzle of the nozzle includes a stage of reduced cross-sectional area, a throat, and a stage of increased cross-sectional area. When the gas passes through the stage of reduced cross-sectional area, the airflow is continuously accelerated. When it reaches the throat, the flow velocity has reached the speed of sound. When the gas passes through the stage of increased cross-sectional area of ​​the air duct, the airflow velocity is further increased so that the airflow in the nozzle is ejected at a supersonic speed. The bottom of the rotating shaft A rotating motor and a reducer are provided. The motor is controlled by the controller to adjust the angle of the rotating shaft to achieve adjustable nozzle direction. The hose connects the nozzle and the pipeline. The nozzle fixing bracket is installed and fixed on the pipeline. The air pressure pump is connected to the air storage chamber with an air pipe. The strain gauge is fixed on the side of the high-rise building to detect the deformation of the high-rise building. The wind force detector is installed on the top of the high-rise building to detect the force direction of the high-rise building and transmit the deformation and force direction signals to the controller. The controller is used to control the air flow rate of the air pressure pump flowing into the pipeline and the rotation angle of the nozzle. The air flow enters the nozzle through the pipeline and is ejected at high speed. After the high-speed air flow is ejected, a suitable reverse thrust is obtained to act on the pipeline. The force is transmitted to the steel frame of the high-rise building through the supporting structure, thereby suppressing the vibration of the high-rise building caused by wind. The air storage chamber is installed in the middle of the roof of the high-rise building, and the supporting structure is installed in four directions of the roof of the high-rise building. The pipeline has an air inlet and multiple nozzle mounting holes. The nozzle is installed in the nozzle mounting hole, and the air pressure pump is connected to the air inlet. Two air pressure pumps are connected to two pipelines respectively.

[0005] The working principle of the present invention is: The gas in the air storage chamber is pressurized by an air pressure pump, and the strain gauge obtains the deformation of the high-rise building. The controller controls the air flow rate of the air pressure pump into the pipeline and the rotation angle of the nozzle according to the deformation of the high-rise building. The nozzle of the nozzle adopts Laval nozzle design to achieve secondary acceleration of the airflow. The airflow enters the nozzle through the pipeline and is ejected at high speed. After the high-speed airflow is ejected, a suitable reverse thrust is obtained to act on the pipeline. This force is transmitted to the steel frame of the high-rise building through the supporting structure, thereby suppressing the vibration of the high-rise building caused by wind.

[0006] Compared with the prior art, the present invention has the following significant advantages: (1) The high-rise building nozzle direction adjustable airflow reverse thrust active wind and vibration protection device has a simple overall structure, easy installation and high reliability.

[0007] (2) The active wind and vibration protection device with adjustable airflow reverse thrust for high-rise building nozzles is low-cost and can be installed and removed at any time and replaced uniformly.

[0008] (3) The high-rise building nozzle direction is adjustable, the airflow reverse thrust is active, the wind resistance and vibration prevention device can be rotated, and the nozzle design has a novel structure, a wide control range and flexible operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the high-rise building nozzle direction adjustable airflow reverse thrust active wind-resistant and vibration-proof device of the present invention; Figure 2 It is a partial enlarged view of the active wind-resistant and vibration-proof device with adjustable airflow reverse thrust of the nozzle of a high-rise building of the present invention; Figure 3 It is a schematic diagram of the supporting structure of the high-rise building two-way airflow reverse thrust active wind-resistant and vibration-proof device of the present invention; Figure 4 It is a detailed cross-sectional view of the pipeline of the high-rise building two-way airflow reverse thrust active wind-resistant and vibration-proof device of the present invention; Figure 5 It is a detailed cross-sectional view of an adjustable nozzle of a two-way airflow reverse thrust active wind and vibration protection device for high-rise buildings; Figure 6 It is a schematic diagram of the air pressure pump of the two-way airflow reverse thrust active wind and vibration protection device for high-rise buildings; Figure 7 It is a schematic diagram of a controller for a two-way airflow reverse thrust active wind-resistant and vibration-proof device for a high-rise building. DETAILED DESCRIPTION

[0010] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] Combination Figure 1-Figure 7The high-rise building nozzle direction adjustable airflow reverse thrust active wind-resistant and vibration-proof device of this embodiment is characterized by comprising a support structure 4, a pipeline 3, a nozzle 5, a nozzle fixing bracket 6, a rotating shaft 7, a hose 8, an air storage chamber 9, an air pressure pump 10, a controller 2, a strain gauge 1 and a wind detector 11. The support structure 4 is fixed on the steel frame at the top of the high-rise building, the pipeline 3 is installed and fixed on the top and middle of the support structure 4, the nozzle 5 is installed and fixed on the nozzle fixing bracket 6 through the rotating shaft 7 and is internally connected, the nozzle of the nozzle 5 includes a stage 501 with a reduced cross-sectional area, a throat 502, and a stage 503 with an increased cross-sectional area. When the gas passes through the stage 501 with a reduced cross-sectional area, the airflow is continuously accelerated. When it reaches the throat 502, the flow velocity has reached the speed of sound. When the gas passes through the stage 503 with an increased cross-sectional area of ​​the air duct, the speed of the airflow is further accelerated, and the airflow enters the nozzle through the pipeline 3. The nozzle 5 is sprayed out at high speed after the pipe 5, and a rotating motor 701 and a reducer 702 are arranged at the bottom of the rotating shaft 7. The motor 701 is controlled by the controller 2 to adjust the angle of the rotating shaft 7 to realize the adjustable direction of the nozzle. The hose 8 connects the nozzle 5 and the pipe 3. The nozzle fixing bracket 6 is installed and fixed on the pipe 3. The pipe 3 is connected to the air pressure pump 10 by an air pipe, and the air pressure pump 10 is connected to the air storage chamber 9 by an air pipe. The strain gauge 1 is fixed on the side of the high-rise building to detect the deformation of the high-rise building. The wind force detector 11 is installed on the top of the high-rise building to detect the force direction of the high-rise building and transmit the deformation and force direction signals to the controller 2. The controller 2 is used to control the air flow rate of the water pump 10 flowing into the pipe 3 and the rotation angle of the nozzle 5. After the high-speed airflow is sprayed out, a suitable reverse thrust is obtained to act on the pipe 3, and the force is transmitted to the steel frame of the high-rise building through the supporting structure 4, thereby suppressing the vibration of the high-rise building caused by wind. The air storage chamber 9 is installed in the middle of the roof of the high-rise building, the support structure 4 is installed in four directions of the roof of the high-rise building, the pipeline 3 has an air inlet 302 and multiple nozzle installation holes 301, the nozzle 5 is installed in the nozzle installation hole 301, and the air pressure pump 10 is connected to the air inlet 302. There are two air pressure pumps 10 connected to the two pipelines 3 respectively. The high-rise building nozzle direction adjustable airflow reverse thrust active wind and vibration device of the present invention can realize simple, practical and low-cost wind and vibration resistance of high-rise buildings.

Claims

1. An active wind and vibration resistant device with adjustable airflow reverse thrust for high-rise buildings, characterized in that include A strain gauge (1) is fixed to the side of a high-rise building and is used to detect deformation of the high-rise building; A controller (2) installed on the top of a high-rise building and used to control the pressurization of the air pressure pump (10); The pipeline (3) is installed and fixed on the top and middle of the supporting structure (4); A supporting structure (4) fixed to a steel frame at the top of the high-rise building; The nozzle (5) is fixed on the nozzle fixing bracket (6) via a rotating shaft (7) and is internally connected, and is used to spray high-pressure airflow to obtain a reverse force to reduce the vibration of the high-rise building; A nozzle fixing bracket (6) is installed and fixed on the pipeline (3); A rotating shaft (7) is mounted and fixed on the nozzle fixing bracket (6) to achieve adjustable direction of the nozzle; A hose (8) serves to connect the nozzle (5) and the pipeline (3); A gas storage chamber (9), installed on the top of a high-rise building, for storing gas; A gas pressure pump (10) installed on the top of a high-rise building for pressurizing gas; A wind detector (11) is installed on the top of a high-rise building and is used to detect the wind direction of the high-rise building and transmit signals of deformation and force direction to the controller (2); The nozzle of the nozzle (5) comprises a stage (501) where the area decreases, a throat (502), and a stage (503) where the cross-sectional area increases. When the gas passes through the stage (501) where the cross-sectional area decreases, the airflow is continuously accelerated. When the gas reaches the throat (502), the flow velocity has reached the speed of sound. When the gas passes through the stage (503) where the cross-sectional area of ​​the air duct increases, the airflow velocity is further increased, so that the airflow in the nozzle (5) is ejected at a supersonic speed. A rotating motor (701) and a reducer (702) are provided at the bottom of the rotating shaft (7); the motor (701) is controlled by the controller (2) to adjust the angle of the rotating shaft (7) to achieve adjustable direction of the nozzle; The hose (8) connects the nozzle (5) and the pipeline (3), and the nozzle fixing bracket (6) is installed and fixed on the pipeline (3); The air pressure pump (10) is connected to the pipeline (3) via an air pipe, and the air pressure pump (10) is connected to the air storage chamber (9) via an air pipe; The wind detector (11) is installed on the top of a high-rise building and is used to detect the wind direction of the high-rise building and transmit signals of deformation and force direction to the controller (2). The controller (2) is used to control the amount of air flowing from the air pressure pump (10) into the pipeline (3). The airflow enters the nozzle (5) through the pipeline (3) and is ejected at high speed. After the high-speed ejection of the airflow, a suitable reverse thrust is obtained to act on the pipeline (3). The force is transmitted to the steel frame of the high-rise building through the support structure (4), thereby suppressing the vibration of the high-rise building caused by wind.

2. The high-rise building nozzle direction adjustable airflow reverse thrust active wind and vibration protection device according to claim 1 is characterized in that: The gas storage chamber (9) is installed in the middle of the roof of the high-rise building, and the supporting structure (4) is installed in four directions of the roof of the high-rise building.

3. The high-rise building nozzle direction adjustable airflow reverse thrust active wind and vibration protection device according to claim 1 is characterized in that: The pipeline (3) has an air inlet hole (302) and a plurality of nozzle mounting holes (301), the nozzle (5) is mounted in the nozzle mounting hole (301), and the air pressure pump (10) is connected to the air inlet hole (302).

4. The high-rise building nozzle direction adjustable airflow reverse thrust active wind and vibration protection device according to claim 1 is characterized in that: There are two air pressure pumps (10), which are respectively connected to the middle and top pipelines (3) through air pipes.

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