CN111579206A - An adjustable aerodynamic roughness testing platform - Google Patents

Abstract

The invention discloses an adjustable aerodynamic roughness detection platform, comprising a meteorological tower, an equipment protection box is installed on the surface of the meteorological tower, the equipment protection boxes are evenly distributed on the side wall of the meteorological tower, and the surface of the equipment protection box is provided with a measurement opening , There are protective devices installed on the side walls of the equipment protection box. The adjustable aerodynamic roughness detection platform is installed inside the equipment protection box to install the equipment required for aerodynamic roughness detection, and aligns the detection end of the measurement equipment with the measurement opening on the surface of the equipment protection box for detection. When the external wind speed is too large, the monitoring block in the monitoring box is blown to one end, so that the surface of the monitoring block is close to the proximity switch, and the proximity switch is triggered to make the electric valve close and block the measurement opening to prevent the measurement equipment in the equipment protection box from being damaged. Therefore, it is convenient to detect the aerodynamic roughness while protecting the measuring equipment.

Description

An adjustable aerodynamic roughness testing platform

technical field

The invention relates to the technical field of aerodynamic roughness calculation, in particular to an adjustable aerodynamic roughness detection platform.

Background technique

The aerodynamic roughness length z0 is the basis for studying land surface processes under horizontally inhomogeneous conditions, and in the absence of observations on different length scales, the definition of observations can be illustrated by estimating the surface aerodynamic roughness length z0 What length scale is appropriate, and how to estimate z0 for non-uniform surfaces as the scale increases, for this reason, it is necessary to install measuring equipment on the surface of professional buildings such as meteorological towers;

The measurement equipment needs to measure the factors of wind speed. Although the measurement equipment can withstand a certain wind impact, the wind speed in the high sky will exceed the bearing range of the measurement equipment in special weather, causing damage to the measurement equipment. Although the wind speed in the low air is lower than The wind speed in high altitude, but it is easy to roll up sand and gravel in low altitude. The impact of sand and gravel on the measuring equipment will also cause damage to the measuring equipment. Therefore, it is necessary to carry out adjustable protection for the aerodynamic roughness testing platform according to the wind speed and the actual conditions of high and low altitudes. .

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to provide an adjustable aerodynamic roughness detection platform, which has the characteristics of being convenient for detecting aerodynamic roughness and protecting the measuring equipment.

For achieving the above object, the present invention provides the following technical solutions:

An adjustable aerodynamic roughness detection platform includes a weather tower, an equipment protection box is installed on the surface of the weather tower, the equipment protection box is evenly distributed on the side wall of the weather tower, the surface of the equipment protection box is provided with a measurement opening, and the equipment protection box A protective device is installed on the side wall of the device, and the protective device controls the opening and closing of the measuring equipment in time by monitoring the change of wind speed, so as to protect the measuring equipment, and the protective device includes a monitoring box.

Further, the monitoring box is in the shape of a hollow box with openings at both ends, the side wall of the equipment protection box is fixedly connected with the monitoring box, the distribution of the monitoring box is aligned with the distribution of the equipment protection box, and the opening direction of the monitoring box is aligned with the opening direction of the measurement opening. .

Through the above technical solution, the opening direction of the monitoring box is aligned with the opening direction of the measurement opening, so as to ensure that the actual wind condition of the equipment protection box can be monitored.

Further, a rotating shaft is fixedly connected to the upper end of the inner side wall of the monitoring box, and both ends of the rotating shaft are slidably sleeved with connecting rings.

Through the above technical solution, both ends of the rotating shaft are slidably sleeved with connecting rings, thereby facilitating the rotation of the monitoring block around the rotating shaft.

Further, the lower ends of the two connecting rings are fixedly connected with monitoring blocks, the surfaces of the monitoring blocks are rectangular, and the interior of the monitoring blocks is provided with a card slot.

Through the above technical solution, the surface of the monitoring block is rectangular, thereby facilitating the increase of the wind-affected area of the monitoring block.

Further, the card slots are evenly distributed inside the monitoring block, one end of the card slot is open and extends obliquely to the surface of the monitoring block, the inside of the card slot is clamped with a counterweight block, and the surface of the counterweight block is compatible with the inner wall of the card slot. The side wall of the counterweight block is fixedly connected with a fixing piece.

Through the above technical solution, the opening of one end of the card slot is used to extend obliquely to the surface of the monitoring block, thereby facilitating the card connection of the counterweight block.

Further, a proximity switch is fixedly connected to the inner top wall of the monitoring box, the two proximity switches are distributed on both sides of the monitoring block, and an electric valve is installed on the surface of the measurement opening.

Through the above technical solution, a proximity switch is fixedly connected to the inner top wall of the monitoring box, so that it is convenient to control the closing of the electric valve. The brand of the proximity switch is OMCH, the model is LJ12A3-4-Z-BY; the brand of the electric valve is NANVA, the model For AX-D971X-16Q.

Further, the electric valve is electrically connected with the proximity switch, the inner top wall of the monitoring box is fixedly connected with a timing switch, and the timing switch is electrically connected with the electric valve and the proximity switch.

Through the above technical solution, the timing switch electric valve and the proximity switch are both electrically connected, so that the re-opening of the electric valve can be easily controlled.

To sum up, the present invention has the following beneficial effects:

1. Install the equipment required for aerodynamic roughness detection inside the equipment protection box, and align the detection end of the measurement equipment with the measurement opening on the surface of the equipment protection box for detection. When the external wind speed is too large, monitor the The monitoring block in the box is blown up to one end, so that the surface of the monitoring block is close to the proximity switch, and the proximity switch is triggered to make the electric valve close and block the measurement opening, preventing the measurement equipment in the equipment protection box from being damaged, so as to facilitate the measurement of aerodynamic roughness. Features that protect measuring equipment while testing.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a half-section schematic diagram of the structure of the monitoring box of the present invention;

FIG. 3 is a half-section schematic diagram of the structure of the monitoring block of the present invention.

In the figure: 1. Weather tower; 2. Equipment protection box; 3. Measuring opening; 4. Monitoring box; 5. Rotating shaft; 6. Connecting ring; 7. Monitoring block; 8. Card slot; 9. Counterweight block; 10 , Fixed piece; 11, Proximity switch; 12, Electric valve; 13, Timing switch.

Detailed ways

Example:

The present invention will be further described in detail below in conjunction with accompanying drawings 1-3.

An adjustable aerodynamic roughness detection platform, as shown in Figure 1-3, includes a meteorological tower 1, an equipment protection box 2 is installed on the surface of the meteorological tower 1, and the equipment protection boxes 2 are evenly distributed on the side wall of the meteorological tower 1, The surface of the equipment protection box 2 is provided with a measurement opening 3, and the side wall of the equipment protection box 2 is equipped with a protective device. The protective device controls the opening and closing of the measuring equipment in time by monitoring the change of wind speed, thereby protecting the measuring equipment. The protective device includes Monitoring box 4;

As shown in Figure 1-3, the monitoring box 4 is in the shape of a hollow box with two open ends. The side wall of the equipment protection box 2 is fixedly connected with the monitoring box 4. The distribution of the monitoring box 4 is aligned with the distribution of the equipment protection box 2. Monitoring The opening direction of the box 4 is aligned with the opening direction of the measurement opening 3, the upper end of the inner side wall of the monitoring box 4 is fixedly connected with a rotating shaft 5, both ends of the rotating shaft 5 are slidably sleeved with a connecting ring 6, and the lower ends of the two connecting rings 6 are fixedly connected There is a monitoring block 7, the surface of the monitoring block 7 is rectangular, the interior of the monitoring block 7 is provided with a card slot 8, the card slot 8 is evenly distributed inside the monitoring block 7, and one end of the card slot 8 is opened obliquely to the monitoring block. 7, the interior of the card slot 8 is clamped with a counterweight block 9, the surface of the counterweight block 9 is adapted to the inner wall of the card slot 8, and the side wall of the counterweight block 9 is fixedly connected with a fixing piece 10;

As shown in Figures 1-3, the inner top wall of the monitoring box 4 is fixedly connected with a proximity switch 11, two proximity switches 11 are distributed on both sides of the monitoring block 7, and an electric valve 12 is installed on the surface of the measurement opening 3, and the electric valve 12 Electrically connected with the proximity switch 11 , a timing switch 13 is fixedly connected to the inner top wall of the monitoring box 4 , and the timing switch 13 is electrically connected with the electric valve 12 and the proximity switch 11 .

The equipment required for aerodynamic roughness detection is installed inside the equipment protection box 2, and the detection end of the measurement equipment is aligned with the measurement opening 3 on the surface of the equipment protection box 2, and the detection is carried out. When the external wind speed is too large, The monitoring block 7 in the monitoring box 4 is blown to one end, so that the surface of the monitoring block 7 is close to the proximity switch 11, and the proximity switch 11 is triggered to make the electric valve 12 close and block the measurement opening 3 to prevent the measurement equipment in the equipment protection box 2 from being damaged. , so as to facilitate the detection of aerodynamic roughness while protecting the measuring equipment.

working principle:

The measurement equipment is installed in the equipment protection box 2, and the detection end of the measurement equipment is aligned with the measurement opening 3 on the surface of the equipment protection box 2, and a plurality of equipment protection boxes 2 equipped with protective devices are respectively installed on the multiple sides of the meteorological tower 1. According to the height of each meteorological tower 1, and according to the wind conditions of each height of each meteorological tower 1, an appropriate amount of counterweights 9 made of metal sheets are inserted into the card slot 8. When in use, open the electric valve 12 to monitor the inside of the box 4 and the equipment. The protection box 2 receives the same wind force. When the wind force is too large, the monitoring block 7 is blown up, and the monitoring block 7 rotates along the rotating shaft 5. When the surface of the monitoring block 7 rotates to be close to the proximity switch 11, the proximity switch 11 Triggered, the proximity switch 11 controls the timing switch 13 to open and the electric valve 12 to close, the electric valve 12 blocks the measurement opening 3 to prevent damage to the internal measurement equipment, the timing switch 13 starts timing, and the monitoring block 7 is under the action of strong wind. Trigger the proximity switch 11, the proximity switch 11 controls the timing switch 13 to continuously reset the timing, when the wind weakens, the monitoring block 7 remains relatively stable under the action of gravity, the timing switch 13 is not reset for a long time, the timing is over, the timing switch Control the electric valve 12 to open.

This specific embodiment is only an explanation of the present invention, and it does not limit the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as needed after reading this specification, but as long as the rights of the present invention are used All claims are protected by patent law.

Claims (7)

1. The utility model provides an aerodynamic roughness testing platform with adjustable, includes meteorological tower (1), its characterized in that: the surface mounting of meteorological tower (1) has equipment guard box (2), lateral wall evenly distributed at meteorological tower (1) in equipment guard box (2), measurement opening (3) have been seted up on the surface of equipment guard box (2), protector is installed to the lateral wall of equipment guard box (2), protector is through opening and closing of the change timely control measuring equipment of monitoring wind speed to protect measuring equipment, protector includes monitoring box (4).

2. The adjustable aerodynamic roughness measurement platform of claim 1, wherein: the monitoring box (4) is in a hollow box body shape with two open ends, the side wall of the equipment protection box (2) is fixedly connected with the monitoring box (4), the distribution of the monitoring box (4) is aligned with the distribution of the equipment protection box (2), and the opening direction of the monitoring box (4) is aligned with the opening direction of the measurement opening (3).

3. The adjustable aerodynamic roughness measurement platform of claim 1, wherein: the monitoring box is characterized in that a rotating shaft (5) is fixedly connected to the upper end of the inner side wall of the monitoring box (4), and connecting rings (6) are sleeved at two ends of the rotating shaft (5) in a sliding mode.

4. The adjustable aerodynamic roughness measurement platform of claim 3, wherein: the lower ends of the two connecting rings (6) are fixedly connected with monitoring blocks (7), the surfaces of the monitoring blocks (7) are rectangular, and clamping grooves (8) are formed in the monitoring blocks (7).

5. The adjustable aerodynamic roughness measurement platform of claim 4, wherein: draw-in groove (8) are in the inside evenly distributed of monitoring piece (7), the one end opening of draw-in groove (8) is the slant and extends to the surface of monitoring piece (7), the inside joint of draw-in groove (8) has balancing weight (9), the surface of balancing weight (9) and the inner wall adaptation of draw-in groove (8), the lateral wall fixedly connected with stationary blade (10) of balancing weight (9).

6. The adjustable aerodynamic roughness measurement platform of claim 5, wherein: the inner top wall of the monitoring box (4) is fixedly connected with proximity switches (11), the proximity switches (11) are distributed on two sides of the monitoring block (7), and the surface of the measuring opening (3) is provided with an electric valve (12).

7. The adjustable aerodynamic roughness measurement platform of claim 6, wherein: electrically operated valve (12) and proximity switch (11) electric connection, the interior roof fixedly connected with of monitoring case (4) is time switch (13), time switch (13) and electrically operated valve (12) and the equal electric connection of proximity switch (11).

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