Test wind simulation system and combined simulation system

Abstract

The utility model discloses a test wind simulation system and a combined simulation system, and relates to the technical field of environment simulation. The wind speed adjusting device comprises a frequency converter used for adjusting the wind speed of the draught fan. The wind speed measuring device comprises a wind speed sensor and a display part, the wind speed sensor is arranged at an air outlet of the fan and used for sending a measured wind speed signal to the display part, and the display part is used for processing the wind speed signal and displaying a wind speed value; the fixing support is of a frame structure. The wind direction adjusting device comprises a bearing frame, a rotating shaft and a rotating motor; the bearing frame is installed in the fixing support, a fan is installed in the bearing frame, the rotating shaft is fixedly connected with the bearing frame, one end of the rotating shaft is connected with a rotating motor, and the rotating motor can drive the rotating shaft to rotate so that the bearing frame can rotate along with the rotating shaft. According to the technical scheme, the test wind environment can be simulated so as to research the performance of the power system in the strong wind environment.

Description

Technical Field

[0001] This utility model relates to the field of environmental simulation technology, and in particular to a wind simulation system and a combined simulation system for testing. Background Technology

[0002] In addition to being affected by the regional wind environment, the wind field within a substation is also influenced by wind turbulence caused by the layout of buildings and equipment within the substation, as well as by occasional extreme weather events. Since the substation houses the power system (such as electrical equipment and connecting conductors), strong winds resulting from changes in the wind field can cause these electrical equipment and connecting conductors to sway, thus affecting their structural stability, electrical insulation characteristics, and live-line operation characteristics.

[0003] Therefore, studying the performance of power systems under high wind conditions is very important. However, a system that simulates high wind conditions is currently lacking. Utility Model Content

[0004] In view of this, the present invention provides a test wind simulation system to simulate a test wind environment in order to study the performance of the power system under high wind conditions.

[0005] This invention also provides a combined simulation system including the above-mentioned experimental wind simulation system.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An experimental wind simulation system, comprising:

[0008] Air outlet device; the air outlet device includes a fan;

[0009] Wind speed regulating device; the wind speed regulating device includes a frequency converter, which is used to regulate the wind speed of the fan;

[0010] Wind speed measuring device; the wind speed measuring device includes a wind speed sensor and a display device, the wind speed sensor is disposed at the air outlet of the fan, the wind speed sensor is used to send the measured wind speed signal to the display device, the display device is used to process the wind speed signal and display the wind speed value, the wind speed value is obtained by the display device after processing the wind speed signal;

[0011] Fixed bracket; the fixed bracket is a frame structure;

[0012] A wind direction adjustment device; the wind direction adjustment device includes a support frame, a rotating shaft and a rotating motor; the support frame is installed in the fixed bracket, the fan is installed in the support frame, the rotating shaft is fixedly connected to the support frame, and one end of the rotating shaft is connected to the rotating motor, the rotating motor can drive the rotating shaft to rotate so that the support frame rotates with the rotating shaft.

[0013] Preferably, there are four fans, and all four fans are installed inside the support frame.

[0014] Preferably, the fan is an industrial fan.

[0015] Preferably, the frequency converter is equipped with a wireless receiver, which receives wireless signals sent by the remote control and converts the wireless signals into electrical signals that the frequency converter can recognize. The frequency converter outputs control signals to the fan based on the electrical signals, thereby controlling the air volume, opening and closing of the fan.

[0016] Preferably, the display device includes a display screen and a microprocessor, wherein the microprocessor is used to process the wind speed signal to obtain the wind speed value, and the wind speed value is displayed by the display screen.

[0017] Preferably, it also includes a drive mechanism;

[0018] The fixed bracket is provided with an axial track, and the bearing frame is provided with bearing pulleys that cooperate with the bearing frame;

[0019] The drive mechanism is used to drive the load-bearing pulley of the support frame to slide along the axial track.

[0020] Preferably, the driving mechanism is a winch motor and a wire rope. The winch motor is located at the bottom of the fixed bracket, and a wheel is provided at the top of the fixed bracket. The drum of the winch motor winds one end of the wire rope, and the other end of the wire rope passes around the wheel and is connected to the support frame, so that the support frame can be raised and lowered.

[0021] Preferably, the fixed bracket has casters at the bottom and a lifting ring at the top.

[0022] Preferably, the fixed bracket is a rectangular frame structure, and the number of casters is four, with the four casters positioned in different locations on the fixed bracket.

[0023] A combined simulation system includes: the above-mentioned test wind simulation system; the number of test wind simulation systems is at least two, and the test wind simulation systems are arranged side by side.

[0024] As can be seen from the above technical solution, the experimental wind simulation system provided by this utility model, through the setting of an air outlet device, a wind speed adjustment device, a wind speed measuring device, a fixed support, and a wind direction adjustment device, can simulate an experimental wind environment to study the performance of the power system under high wind conditions. Specifically, the wind speed of the fan can be adjusted using a frequency converter to meet different wind levels as needed. Wind speed sensors and displays can also be used to monitor wind speed values ​​in real time. Furthermore, the fan located within the support frame can be rotated by the cooperation of a rotating motor and a rotating shaft to meet different air outlet angle requirements.

[0025] This utility model also provides a combined simulation system. Since it adopts the above-mentioned experimental wind simulation system, it has corresponding beneficial effects, which can be referred to in the previous description and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural diagram of the experimental wind simulation system provided in this embodiment of the utility model;

[0028] Figure 2 This is a front view structural diagram of the combined simulation system provided in an embodiment of the present invention.

[0029] The meanings of the various reference numerals in the figure are as follows:

[0030] 1 represents the air outlet device, and 11 represents the fan;

[0031] 2 is the wind speed regulation device, and 21 is the frequency converter;

[0032] 3 is the wind speed measuring device, 31 is the wind speed sensor, and 32 is the display device;

[0033] 4 is a fixed bracket, and 41 is a caster wheel;

[0034] 5 is the wind direction adjustment device, 51 is the support frame, and 52 is the rotating shaft. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] The experimental wind simulation system provided in this embodiment of the utility model, such as Figure 1 As shown, it includes:

[0037] Air outlet device 1; Air outlet device 1 includes fan 11;

[0038] Wind speed regulating device 2; Wind speed regulating device 2 includes frequency converter 21, which is used to regulate the wind speed of fan 11, wherein the power supply line, frequency converter 21 and fan 11 are connected in sequence; Preferably, wind speed regulating device 2 also includes a housing, and frequency converter 21 is disposed in the housing.

[0039] Wind speed measuring device 3; The wind speed measuring device 3 includes a wind speed sensor 31 and a display 32. The wind speed sensor 31 is set at the air outlet of the fan 11. The wind speed sensor 31 is used to send the measured wind speed signal to the display 32. The display 32 is used to process the wind speed signal and display the wind speed value. The wind speed value is obtained by the display 32 after processing the wind speed signal. The wind speed sensor 31 and the display 32 are connected by wire (wire) or wirelessly.

[0040] Fixed bracket 4; Fixed bracket 4 is a frame structure;

[0041] Wind direction adjustment device 5; Wind direction adjustment device 5 includes: a support frame 51, a rotating shaft 52 and a rotating motor; The support frame 51 is installed in the fixed bracket 4, and a fan 11 is installed in the support frame 51. The rotating shaft 52 is fixedly connected to the support frame 51, and one end of the rotating shaft 52 is connected to the rotating motor. The rotating motor can drive the rotating shaft 52 to rotate, so that the support frame 51 rotates with the rotating shaft 52. The rotating shaft 52 can adjust the support frame 51 in the horizontal direction by ±20 degrees.

[0042] In the above technical solution, the various components of the power system to be tested are placed at the air outlet of the fan 11, and the fan 11 is started to verify its performance in windy weather. These components include, but are not limited to, electrical equipment (high-voltage or low-voltage) or connecting wires. Taking electrical equipment as an example, the electrical equipment is placed at or a certain distance from the air outlet of the fan 11, and the fan 11 is started to allow the wind blowing from the fan 11 to act on the electrical equipment, thus simulating the wind conditions experienced by the electrical equipment in windy weather, and then verifying the performance of the electrical equipment in windy weather. In this technical solution, the wind speed of the fan 11 can be adjusted using the frequency converter 21 as needed to meet different wind levels. The wind speed sensor 31 and display 32 can also be used to monitor the wind speed in real time. Alternatively, the fan 11 located within the support frame 51 can be rotated by the cooperation of the rotating motor and the rotating shaft 52 to meet different air outlet angle requirements.

[0043] In an optional embodiment, there are four fans 11, all of which are housed within the support frame 51, such as... Figure 1 As shown, four fans 11 are installed within the support frame 51, forming an effective wind field 5m away from the air outlet of each fan 11. This wind field has a range of at least 2m × 1m, and the maximum wind force can reach level 6. Furthermore, in this scheme, the frequency converter 21 can uniformly control the opening and closing of the four fans 11 and the air volume. In addition, the specific number of fans 11 can be set according to actual needs.

[0044] In one alternative technical solution, the fan 11 is an industrial fan, which has a large air volume and better simulates strong winds. Preferably, the industrial fan is any one of a centrifugal fan, an axial fan, and a mixed-flow fan.

[0045] In one optional technical solution, the inverter 21 is equipped with a wireless receiver. The wireless receiver receives the wireless signal sent by the remote control and converts the wireless signal into an electrical signal that the inverter 21 can recognize. The inverter 21 outputs a control signal to the fan 11 based on the electrical signal, thereby controlling the air volume, opening and closing of the fan 11.

[0046] In the above technical solution, the airflow, on / off state of the fan 11 is controlled by a remote control, which is convenient and quick. In another embodiment, the frequency converter also has an adjustment button, which can be used to control the airflow, on / off state of the fan 11. It should be noted that the control signal is used to adjust the power frequency or voltage of the fan 11 in real time, thereby controlling the airflow of the fan 11.

[0047] In one alternative technical solution, to facilitate quick and easy acquisition of real-time wind speed values, the display device 32 includes a display screen and a microprocessor. The microprocessor processes the wind speed signal to obtain the wind speed value, which is then displayed on the display screen. Furthermore, the display screen and microprocessor are industrial components, which helps reduce costs.

[0048] In one of the alternative technical solutions, such as Figure 1 As shown, it also includes a drive mechanism;

[0049] The fixed bracket 4 is provided with an axial rail, and the bearing frame 51 is provided with bearing pulleys that cooperate with the bearing frame 51;

[0050] The drive mechanism is used to drive the load-bearing pulley of the support frame 51 to slide along the axial track.

[0051] In the above technical solution, if the support frame 51 needs to be at different heights, the drive mechanism is activated so that the support frame 51 slides along the axial track using the support pulleys to reach the required height. Furthermore, a highest and lowest position can be set on the fixed bracket 4 (the preset height between the highest and lowest positions can be 4m), controlling the movement of the support frame 51 between the highest and lowest positions. Preferably, the drive mechanism is equipped with a lifting button, which controls the axial movement of the support frame 51 along the track of the fixed bracket 4. It should be noted that the reason for placing the support frame 51 at different heights is to adjust the height of the fan 11 according to actual needs, so that the wind simulation system used in this experiment can output air at different outlet heights.

[0052] The optimized technical solution uses a winch motor and a wire rope as the driving mechanism. The winch motor is located at the bottom of the fixed bracket 4, and a pulley is located at the top of the fixed bracket 4. One end of the wire rope is wound around the drum of the winch motor, and the other end of the wire rope passes around the pulley and connects to the support frame 51, thereby enabling the support frame 51 to rise and fall. In this technical solution, the lifting and falling of the support frame 51 can be achieved using the winch motor, wire rope, and pulley. During use, the lifting and falling of the support frame 51 is achieved by rotating the winch motor forward or backward. Furthermore, the winch motor is an industrial component, which helps reduce costs.

[0053] In one of the alternative technical solutions, such as Figure 1 As shown, to facilitate the movement of the fixed support 4 and adapt the wind simulation system used in this experiment to different test sites, the fixed support 4 is equipped with casters at its bottom for easy movement, and a lifting ring at its top. The lifting ring is used to lift the fixed support 4 to accommodate electrical equipment located at high positions, such as post insulators or surge arresters.

[0054] Optimize the above technical solutions, such as Figure 1As shown, the fixed bracket 4 has a rectangular frame structure with four pulleys 41 positioned at different locations. Specifically, the arrangement of these pulleys 41 in different locations provides support for the fixed bracket 4, preventing ground moisture and extending its service life. The different positions of the pulleys 41 also ensure greater stability during movement. Preferably, the fixed bracket 4 has a support rod that secures it in place after it has been moved into position.

[0055] A combined simulation system for wind simulation over a larger area, such as Figure 2 This includes: the aforementioned test wind simulation system; the number of test wind simulation systems is at least two, and the test wind simulation systems are arranged side by side. In this technical solution, various adjustments can be made according to test specimens of different sizes (i.e., the various components of the power system to be tested). Two test wind simulation systems can be combined to adapt to the test specimen, ensuring that the wind blowing on the test specimen covers the entire specimen, thus guaranteeing the rigor of the test.

[0056] In the above technical solution, taking the setup of four fans 11 in each test wind simulation system as an example, and with only two test wind simulation systems, the arrangement and coordination of eight fans 11 and two support frames 51 can simulate more complex high-wind weather. For example, in one test wind simulation system, the fans 11 rotate a first preset angle under the coordination of the support frame 51 and the rotating motor; in the other test wind simulation system, the fans 11 rotate a second preset angle under the coordination of the support frame 51 and the rotating motor. The first and second preset angles may be the same or different, so that the wind blown by the fans 11 on the support frame 51 works synergistically to simulate complex high-wind weather. Furthermore, different fans 11 can be connected to different frequency converters 21, so that the air output of different fans 11 may be the same or different. In the above technical solution, the array of eight fans 11 in the two test wind simulation systems ensures that the effective wind field range at a distance of 5m is at least 4m × 2m, which can meet the testing requirements of some relatively wide power equipment (such as a 252kV three-pole horizontal rotary disconnector). It should be noted that the fixed bracket 4 is equipped with a bayonet fixing component, which can be used to combine two fixed brackets 4 together, so that the two test wind simulation systems can be closely arranged and the air outlet surface can be uniform.

[0057] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features.

[0058] The following is a further description of this solution with reference to specific embodiments:

[0059] In one specific embodiment, before the test, a set of comparison tables between the air outlet and the wind speed at a certain distance can be prepared by measurement. First, select the number and arrangement of the test wind simulation system according to the condition of the sample. After the test wind simulation system is arranged in place, use support rods to firmly support the test wind simulation system, then turn on the power, turn on the switch, and start the fan 11. According to the comparison table of the air outlet and the wind speed at a certain distance obtained in advance, convert the required wind speed at the sample location into the wind speed at the air outlet. The required wind speed at the air outlet can be adjusted using the frequency converter 21. Then, directly turn off the fan 11, raise the fan 11 to a suitable height by controlling the lifting button, adjust the horizontal angle of the support frame 51 to adjust the blowing height and blowing angle to the required range, and then fix it in place before turning on the power to start the test.

[0060] In another specific embodiment, the wind speed measuring device 3 is linked with the wind speed regulating device 2. By inputting the target wind speed, the wind speed regulating device 2 is controlled to adjust, thus achieving automation. Alternatively, a more powerful fan 11 can be replaced to increase the maximum wind force of the experimental wind simulation system.

[0061] In another specific embodiment, the height of the fixed bracket is 4.1m and the width is 2.06m.

[0062] The wind simulation system used in this experiment can meet the requirements of high-voltage electrical equipment in general 252kV and below environments for high-voltage testing and mechanical temperature rise testing under certain wind conditions.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind simulation system for testing, characterized in that, include: Air outlet device (1); the air outlet device (1) includes a fan (11); Wind speed regulating device (2); the wind speed regulating device (2) includes a frequency converter (21), which is used to regulate the wind speed of the fan (11); Wind speed measuring device (3); The wind speed measuring device (3) includes a wind speed sensor (31) and a display (32). The wind speed sensor (31) is disposed at the air outlet of the fan (11). The wind speed sensor (31) is used to send the measured wind speed signal to the display (32). The display (32) is used to process the wind speed signal and display the wind speed value. The wind speed value is obtained by the display (32) after processing the wind speed signal. Fixed bracket (4); the fixed bracket (4) is a frame structure; Wind direction adjustment device (5); The wind direction adjustment device (5) includes a support frame (51), a rotating shaft (52) and a rotating motor; The support frame (51) is installed in the fixed bracket (4), and the fan (11) is installed in the support frame (51). The rotating shaft (52) is fixedly connected to the support frame (51), and one end of the rotating shaft (52) is connected to the rotating motor. The rotating motor can drive the rotating shaft (52) to rotate so that the support frame (51) rotates with the rotating shaft (52).

2. The experimental wind simulation system according to claim 1, characterized in that, There are four fans (11), and all four fans (11) are installed inside the support frame (51).

3. The experimental wind simulation system according to claim 2, characterized in that, The fan (11) is an industrial fan.

4. The experimental wind simulation system according to claim 1, characterized in that, The inverter (21) is equipped with a wireless receiver. The wireless receiver receives the wireless signal sent by the remote control and converts the wireless signal into an electrical signal that the inverter (21) can recognize. The inverter (21) outputs a control signal to the fan (11) based on the electrical signal, thereby controlling the air volume, opening and closing of the fan (11).

5. The experimental wind simulation system according to claim 1, characterized in that, The display device (32) includes a display screen and a microprocessor. The microprocessor is used to process the wind speed signal to obtain the wind speed value, and the wind speed value is displayed by the display screen.

6. The experimental wind simulation system according to claim 1, characterized in that, It also includes the drive mechanism; The fixed bracket (4) is provided with an axial rail, and the bearing frame (51) is provided with a bearing pulley that cooperates with the bearing frame (51); The drive mechanism is used to drive the bearing pulley of the bearing frame (51) to slide along the axial track.

7. The experimental wind simulation system according to claim 6, characterized in that, The driving mechanism is a winch motor and a wire rope. The winch motor is located at the bottom of the fixed bracket (4). The top of the fixed bracket (4) is provided with a wheel. The drum of the winch motor winds one end of the wire rope, and the other end of the wire rope passes around the wheel and is connected to the support frame (51) so that the support frame (51) can be raised and lowered.

8. The experimental wind simulation system according to claim 1, characterized in that, The bottom of the fixed bracket (4) is provided with casters (41), and the top of the fixed bracket (4) is provided with a lifting ring.

9. The experimental wind simulation system according to claim 8, characterized in that, The fixed bracket (4) is a rectangular frame structure, and there are four universal wheels (41), which are located in different positions on the fixed bracket (4).

10. A combined simulation system, characterized in that, include: The experimental wind simulation system as described in any one of claims 1-9; the number of the experimental wind simulation systems is at least two, and the experimental wind simulation systems are arranged side by side.

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