阅读说明：本技术 一种强风速龙卷风发生装置 (Strong wind speed tornado generating device ) 是由 张静红 荀勇 李兴财 于 2021-09-22 设计创作，主要内容包括：本发明公开了一种强风速龙卷风发生装置,包括：底座、放置圆盘、造风组件、多个粒子组件、控制器、电源模块、多个离心风机,多个出风管、钢丝风管、轴流风机、喷射风管、储存罐以及电动阀门,本发明在使用时,使用者将模型置于放置圆盘上,根据实验需求通过注入口在储存罐内注入粉尘或液体,风管围绕放置圆盘的周向均匀布设,启动各离心风机后便可以从风管中喷射出气流,从而形成模拟龙卷风的旋转气流,在需要时使用者启动电动阀门,利用伯努利原理将储存罐内的粉尘或液体吸入喷射风管将其喷出,并使其进入旋转气流,从而能够用于模拟多种形态龙卷风。(The invention discloses a strong wind speed tornado generating device, comprising: the device comprises a base, a placing disc, a wind making assembly, a plurality of particle assemblies, a controller, a power supply module, a plurality of centrifugal fans, a plurality of air outlet pipes, a steel wire air pipe, an axial flow fan, an injection air pipe, a storage tank and an electric valve.)

1. A strong wind speed tornado generating device is characterized by comprising:

the device comprises a base (1), wherein the upper part of the base (1) is connected with a placing disc (2), and an experiment model is arranged on the upper surface of the placing disc (2);

a wind-generating assembly, the wind-generating assembly comprising: a plurality of centrifugal fans (3); the air outlet pipes (4) are arranged on the base (1), and the air outlet pipes (4) are uniformly distributed around the circumferential direction of the placing disc (2) and are used for forming rotary airflow simulating tornadoes; the left end of the steel wire air pipe (5) is connected with each centrifugal fan (3), and the right end of the steel wire air pipe (5) is connected with each air outlet pipe (4);

a plurality of particle subassemblies are all located and are placed on disc (2), and each particle subassembly all includes: the axial flow fan (6), the said axial flow fan (6) locates and places the bottom of the disc (2); the jet air pipe (7) is connected with the axial flow fan (6); the mouth of the storage tank (8) is connected with the side wall of the jet air pipe (7), the storage tank (8) is communicated with the interior of the jet air pipe (7), an injection opening is formed in the storage tank (8), and a cover body is arranged on the injection opening; the electric valve (9) is arranged at the tank opening of the storage tank (8);

the controller is in information connection with each electric valve (9) and each axial flow fan (6);

and the power supply module is electrically connected with each centrifugal fan (3), each electric valve (9), the controller and each axial flow fan (6).

2. A strong wind tornado generating device according to claim 1, characterized in that each centrifugal fan (3) is a variable frequency centrifugal fan, and each centrifugal fan (3) is electrically connected to the power module through a frequency converter, the frequency converter centrally controls each centrifugal fan (3), and the frequency converter is connected to the controller by signals.

3. A strong wind tornado generating device according to claim 1, characterized in that a vortex shedding flowmeter is arranged in the steel wire wind pipe (5) for measuring the air flow in the steel wire wind pipe (5).

4. A strong wind tornado generating device according to claim 1, characterised in that between the base (1) and the placing disc (2) there is connected a lifting platform.

5. A highly wind-driven tornado generating device according to claim 4, in which said disc is provided with model moving means, said model moving means comprising: the slide rail (10) is horizontally arranged on the upper surface of the placing disc (2); the sliding block (11) is connected in the sliding rail (10) in a sliding manner; the motor (12) is arranged inside the sliding block (11), the motor (12) is electrically connected to the power supply module, and the motor (12) is in signal connection with the controller; and the roller (13) is fixedly sleeved on the output shaft of the motor (12).

6. A strong wind tornado generator according to claim 1, characterised in that the material of the outlet pipes (4) is PVC.

7. A highly wind-driven tornado generating device according to claim 6, characterised in that each outlet duct (4) comprises: the pipe body is movably connected with the steel wire air pipe (5); the rectangular air outlet (14) is formed in the side wall of the tube body; the pipe body can rotate around the axis of the pipe body and is used for controlling the orientation angle of the rectangular air outlet (14).

Technical Field

The invention relates to the field of tornado experimental equipment, in particular to a strong-wind-speed tornado generating device.

Background

In recent years, the destruction of construction facilities by tornadoes has attracted much attention of society, and industries such as civil engineering and energy have conducted a lot of research on wind resistance and reinforcement measures of engineering structures. Because the occurrence probability of tornadoes is low, effective wind field data are difficult to obtain by meteorological Doppler radars and conventional observation devices, at present, indoor experimental devices are generally adopted to generate artificial tornadoes. The current tornado generating device generally adopts a single axial flow fan to suck to form 'tornado', although a generated rotary wind field is exactly like real tornado, the flow rate is low on the whole, no large-mass particle exists in the rotary wind field, a large difference exists between the generated rotary wind field and the tornado which can damage buildings in reality, and the damage research of the tornado on engineering buildings cannot be realized.

Disclosure of Invention

The invention provides a strong-wind-speed tornado generating device, which adopts a plurality of centrifugal fans with strong wind pressure to generate strong rotating airflow and form a tornado field, all the devices form a tornado generating wind tunnel, and various particle particles can be added in the tornado field to simulate various tornado states, so that the tornado with destructive power in reality can be simulated more realistically, and the research on the destruction of the tornado to engineering buildings can be developed.

Therefore, the invention provides a strong wind speed tornado generating device, which comprises:

the device comprises a base, a placing disc, a test model and a control device, wherein the upper part of the base is connected with the placing disc, and the upper surface of the placing disc is provided with the test model;

a wind-generating assembly, the wind-generating assembly comprising: a plurality of centrifugal fans; the air outlet pipes are arranged on the base, are uniformly distributed around the circumferential direction of the placing disc and are used for forming rotary airflow simulating tornado; the left end of the steel wire air pipe is connected with each centrifugal fan, and the right end of the steel wire air pipe is connected with each air outlet pipe;

a plurality of particle subassemblies are all located and are placed on the disc, and each particle subassembly all includes: the axial flow fan is arranged at the bottom of the placing disc; the jet air pipe is connected with the axial flow fan; the storage tank is provided with a tank opening connected to the side wall of the jet air pipe, communicated with the interior of the jet air pipe and provided with an injection opening, and the injection opening is provided with a cover body; the electric valve is arranged at the tank opening of the storage tank;

the controller is in information connection with each electric valve and each axial flow fan;

and the power supply module is electrically connected with each centrifugal fan, each electric valve, the controller and each axial flow fan.

Each centrifugal fan is frequency conversion centrifugal fan, and each centrifugal fan all through a converter and power module electric connection, each centrifugal fan of converter centralized control, and converter signal connection in controller.

The steel wire air pipe is provided with a vortex shedding flowmeter and has the function of measuring the air flow in the steel wire air pipe.

And a lifting platform is connected between the base and the placing disc.

Be equipped with model mobile device on the disc, use model mobile device includes: the slide rail is horizontally arranged on the upper surface of the placing disc; the sliding block is connected in the sliding rail in a sliding manner; the motor is arranged inside the sliding block, is electrically connected to the power supply module and is in signal connection with the controller; the roller is fixedly sleeved on the output shaft of the motor.

The air outlet pipes are made of PVC.

Each air outlet pipe comprises: the pipe body is movably connected with the steel wire air pipe; the rectangular air outlet is formed in the side wall of the pipe body; the pipe body can rotate around the axis of the pipe body and is used for controlling the orientation angle of the rectangular air outlet.

The invention has the beneficial effects that:

the invention provides a strong-wind-speed tornado generating device, when the strong-wind-speed tornado generating device is used, a user places a model on a placing disc, dust or liquid is injected into a storage tank through an injection port according to experimental requirements, air pipes are uniformly distributed around the circumference of the placing disc, air flow can be ejected from the air pipes after each centrifugal fan is started, so that rotary air flow simulating tornado is formed, when needed, the user starts an electric valve, the dust or the liquid in the storage tank 8 is sucked into the ejection air pipes by using the Bernoulli principle to be ejected out, and the dust or the liquid enters the rotary air flow, so that the strong-wind-speed tornado generating device can be used for simulating various forms of tornados.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of an air outlet pipe according to the present invention;

FIG. 3 is a top view of the overall structure of the present invention;

FIG. 4 is a front sectional view of a detail of the model moving device of the present invention;

fig. 5 is a front sectional view of a detail of the particle assembly of the present invention.

Description of reference numerals:

1. a base; 2. placing the disc; 3. a centrifugal fan; 4. an air outlet pipe; 5. a steel wire air pipe; 6. an axial flow fan; 7. jetting an air pipe; 8. a storage tank; 9. an electrically operated valve; 10. a slide rail; 11. a slider; 12. a motor; 13. a roller; 14. and a rectangular air outlet.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 5, a strong wind speed tornado generating device includes: the device comprises a base 1, a placing disc 2, a wind generating assembly, a plurality of particle assemblies, a controller and a power supply module, wherein the placing disc 2 is connected to the upper part of the base 1, and an experimental model is arranged on the upper surface of the placing disc 2; the wind-making subassembly includes: the device comprises a plurality of centrifugal fans 3, a plurality of air outlet pipes 4 and a steel wire air pipe 5, wherein the air outlet pipes 4 are uniformly distributed on a base 1, and the air outlet pipes 4 are uniformly distributed around the circumferential direction of a placing disc 2 and are used for forming rotary airflow simulating tornado; the left end of the steel wire air pipe 5 is connected with each centrifugal fan 3, the right end of the steel wire air pipe 5 is connected with each air outlet pipe 4 and used for conveying airflow into the air outlet pipes 4, and the shape and the position of the steel wire air pipe are convenient to adjust; on a plurality of particle subassemblies were all located and were placed disc 2, each particle subassembly all included: the device comprises an axial flow fan 6, an injection air pipe 7, a storage tank 8 and an electric valve 9, wherein the axial flow fan 6 is arranged at the bottom of the placing disc 2; the jet air pipe 7 is connected with the axial flow fan 6, and the opening of the jet air pipe 7 faces the middle part of the placing disc 2; the storage tank 8 can be filled with dust or liquid, the opening of the storage tank is connected with the side wall of the injection air pipe 7, the storage tank 8 is communicated with the inside of the injection air pipe 7, an injection opening is formed in the storage tank 8, and a cover body is arranged on the injection opening; the electric valve 9 is arranged at the tank opening of the storage tank 8; the controller is connected with each electric valve 9 and each axial flow fan 6 in an information mode, can control the opening and closing degree of the electric valves 9, when the axial flow fan 6 is started, air flow is generated in the jet air pipe 7, at the moment, the electric valves 9 are started, dust or liquid in the storage tank 8 is sucked into the jet air pipe 7 by utilizing the Bernoulli principle to be jetted out, and the dust or liquid enters the rotary air flow, so that rotary air flow for simulating various forms of tornadoes (such as water tornadoes or sand tornadoes) can be formed; and the power supply module is electrically connected with each centrifugal fan 3, each electric valve 9 and each axial flow fan 6.

Furthermore, each centrifugal fan 3 is a variable frequency centrifugal fan 3, each centrifugal fan 3 is electrically connected with the power module through a frequency converter, the frequency converter controls each centrifugal fan 3 in a centralized manner, so that the centrifugal fans 3 can be controlled and adjusted in a unified manner, and when the power of each centrifugal fan 3 is adjusted to change the intensity of the simulated tornado, the wind speed in the tangential direction of the rotating airflow can be kept consistent, so that the form of the simulated tornado is stabilized.

Furthermore, the steel wire air pipe 5 is provided with a vortex shedding flowmeter and has the function of measuring the airflow in the steel wire air pipe 5, so that the measured airflow is used as an index for measuring the strength of the tornado, and data recording and parameter adjustment during experiments are facilitated.

Furthermore, a lifting platform is connected between the base 1 and the placing disc 2, so that the building model can be conveniently taken and placed on the placing disc 2.

Further, a model moving device is arranged on the disc and used for adjusting the horizontal position of the model in or before the experiment, and the model moving device comprises: the device comprises a slide rail 10, a slide block 11, a motor 12 and a roller 13, wherein the slide rail 10 is horizontally arranged on the upper surface of the placing disc 2; a model fixing clamp is connected above the sliding block 11 and used for placing a model, and the sliding block 11 is connected in the sliding rail 10 in a sliding manner; the motor 12 is arranged inside the sliding block 11, the motor 12 is electrically connected to the power supply module, and the motor 12 is in signal connection with the controller; the roller 13 is fixedly sleeved on the output shaft of the motor 12.

Furthermore, the air outlet pipes 4 are made of PVC.

Further, each air outlet pipe 4 comprises: the pipe body is movably connected with the steel wire air pipe 5; the rectangular air outlet 14 is formed in the side wall of the tube body; the body can be rotatory around its axis for control rectangle air outlet 14 orientation angle, thereby can change the radius or the form of the simulation tornado of production, also can use a plurality of for the regulation motors to locate on base 1, and each adjusts the lateral wall that is connected with a body with the equal transmission of motor, thereby be used for making each body rotatory can change the radius or the form of simulation tornado in the experimentation, make it more be close changeable tornado in the reality, cause better simulation effect.

The use method of the invention comprises the following steps:

when using this fast tornado generating device of strong wind, the user sends the model into the test area region through the elevating platform earlier, according to the experiment demand through the filling port in holding vessel 8 dust or liquid, and use the power of converter unified control centrifugal fan 3, and rotate each body simultaneously and adjust the orientation angle of rectangle air outlet 14, be used for realizing different intensity, the simulation of the artifical tornado wind field of different yards, when needs, the user starts electric valve 9, utilize the dust or the liquid suction injection tuber pipe 7 of bernoulli's principle in with holding vessel 8 with its blowout, and make it get into rotatory air current, thereby can be used for simulating multiple form tornado, and place and set up the model mobile device on the disc 2, can experiment the motion process of the relative model of artifical tornado.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.