Online acquisition device for meteorological parameters of overhead transmission line

Abstract

The invention relates to an overhead power transmission line meteorological parameter on-line acquisition device, and the device comprises a communication cavity which comprises two cup bodies, and a first communication pipe and a second communication pipe which are communicated with the two cup bodies; the double-helix connecting cylinder blade comprises a hollow connecting cylinder and rotating blades arranged at the two ends of the connecting cylinder. The speed measurement indicating rod is arranged in the connecting cylinder in a penetrating manner, and scale values corresponding to different grades of wind speeds are marked on the speed measurement indicating rod; the whistle mouth structure is arranged at the cup mouth of the other cup body corresponding to the double-helix connecting cylinder blade; under the action of wind power, the two rotating blades are blown to rotate, so that liquid in the two cup bodies flows in the first communicating pipe, an air column above the liquid is pushed to vibrate, and vibration sounds with different frequencies can be made through the whistle opening structure; the connecting cylinder is driven to slide along the speed measurement indicating rod by utilizing the lift force effect generated when the two rotating blades rotate, and the current wind speed grade is determined according to the corresponding scale value on the speed measurement indicating rod after the connecting cylinder slides.

Description

Technical Field

[0001] The invention relates to the technical field of meteorological parameter collection, and in particular to an online meteorological parameter collection device for overhead power transmission lines. Background Art

[0002] Collecting environmental information about overhead transmission lines is a necessary data collection process for understanding on-site operating conditions. Traditional data collection methods mainly rely on manual labor, requiring personnel to go to the vicinity of overhead transmission line towers and use mobile terminal devices such as wind speed testers and thermometers that require power to obtain information data such as wind speed and temperature.

[0003] Existing online monitoring devices all require a power supply system, and most of them are powered by solar panels. First, they are greatly affected by the intensity of sunlight and cannot be used normally in continuous rainy weather. Second, the entire set of online monitoring devices is relatively complex, generally including the device itself, the power supply system, the information transmission module, etc. The overall size is large, and the installation position on the pole tower is limited, requiring special operation and maintenance personnel to maintain it. Finally, overhead transmission line towers are generally located in remote areas in the wild, and the signal of the online monitoring device installed on the tower body is limited, information transmission is often blocked, and the equipment offline rate and information transmission rate are greatly reduced.

[0004] Moreover, as environmental awareness continues to increase and the natural environment continues to improve, bird damage to overhead power lines is also increasing. Therefore, when setting up online data collection devices, it is also necessary to consider the expulsion of birds or other wild animals and warnings to nearby people to prevent accidental damage to the equipment by birds or other wild animals and people. Summary of the invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the problem that the online monitoring device in the prior art is not applicable and is easily damaged, and to provide an online collection device for meteorological parameters of overhead transmission lines. In the absence of other power supply methods, the online collection of meteorological parameters around the overhead transmission line towers can be realized, and the sound can be made to warn people near the towers and drive away birds or other wild animals, thereby preventing the collection device from being accidentally damaged.

[0006] In order to solve the above technical problems, the present invention provides an online collection device for meteorological parameters of overhead power transmission lines, comprising:

[0007] A connecting cavity, comprising: two cup bodies and a first connecting pipe and a second connecting pipe connecting the two cup bodies, wherein the second connecting pipe is arranged above the first connecting pipe, and the two cup bodies are filled with liquid, and the filling height of the liquid is flush with the top surface height of the first connecting pipe;

[0008] The double helical connecting tube blade comprises a hollow connecting tube and rotating blades arranged at both ends of the connecting tube, wherein the connecting tube is inserted into one of the cup bodies, and the two rotating blades are arranged in the cup body and outside the cup body respectively, and the rotating blades arranged in the cup body are immersed in the liquid;

[0009] A speed indicator rod is inserted into the connecting tube, and scale values ​​corresponding to different levels of wind speed are marked on the speed indicator rod;

[0010] A whistle structure, corresponding to the double helical tube blades, is arranged at the cup mouth of another cup body;

[0011] Under the action of wind, the rotating blades arranged outside the cup body are blown to rotate, and the rotating blades arranged inside the cup body are synchronously driven to rotate, so that the liquids in the two cup bodies flow in the first connecting pipe, and the air column above the liquid is pushed to vibrate, and vibration sounds of different frequencies can be emitted through the whistle structure;

[0012] Furthermore, the lift effect generated by the rotation of the two rotating blades is utilized to cause the connecting tube to slide along the speed indicator rod, and the current wind speed level is determined according to the scale value on the speed indicator rod corresponding to the sliding of the connecting tube.

[0013] In one embodiment of the present invention, when the scale value is marked on the speed indicator rod, the relationship of the resultant force generated by the double helical tube blades according to different wind speeds is:

[0014]

[0015] T is the torque generated by the rotating blades under the action of wind, M is the resistance torque when the rotating blades rotate in the liquid, M f is the friction torque between the connecting tube and the cup body, F f is the buoyancy of the rotating blade in the liquid, and m is the mass of the double helical tube blade;

[0016] in:

[0017]

[0018] ρ a is the air density, C is the lift coefficient, S is the equivalent area of ​​the blade, V is the ambient wind speed, and R is the blade radius.

[0019] In one embodiment of the present invention, the liquid is a non-volatile liquid.

[0020] In one embodiment of the present invention, a reversible super-temperature color-changing coating is also coated on the cup body, and the reversible super-temperature color-changing coating has different rated detection temperatures. The reversible super-temperature color-changing coating is sequentially coated on the cup body along the height direction of the cup body according to the gradient change of the rated detection temperature.

[0021] In one embodiment of the present invention, the measurement temperature of the reversible super-thermochromic coating is calibrated according to the actual measurement temperature, and the calculation method of the indication error ΔT of each calibration temperature point is:

[0022]

[0023] Where: T1 is the temperature indicated by the reversible temperature measuring paint bar at the calibration temperature point; T s1 T is the temperature indication of the standard thermometer at the upper stroke of the calibration temperature point; T2 is the temperature indication of the reversible temperature measuring paint bar at the lower stroke of the calibration temperature point; T s2 It is the temperature indication of the standard thermometer at the calibration temperature point.

[0024] In one embodiment of the present invention, it further comprises: a mounting frame and a connecting rod assembly;

[0025] The mounting frame is used to be fixed on the diagonal material of the tower of the overhead power transmission line;

[0026] The connecting rod assembly is arranged on the mounting frame to support the connecting cavity so that the two cup bodies in the connecting cavity are level.

[0027] In one embodiment of the present invention, the mounting frame is provided with three oblique material slots, and the three oblique material slots all penetrate the mounting frame along the length direction of the mounting frame, wherein:

[0028] Two of the inclined material slots are symmetrically arranged on the two sides of the mounting frame, and are used to connect with the inclined material of the backwater type pole tower; one of the inclined material slots is arranged on the ground of the mounting frame, and is used to connect with the inclined material of the draft type pole tower;

[0029] The mounting frame is made of permanent magnet material.

[0030] In one embodiment of the present invention, the connecting rod assembly comprises:

[0031] The telescopic rod has a fixed end disposed on the mounting frame, and an output end capable of adjusting the distance from the mounting frame:

[0032] A rotating shaft is arranged at the output end of the telescopic rod, and the rotating shaft is an arc piece. A circular arc connecting hole that can be connected to the telescopic rod is arranged in the middle of the circular arc piece, and grooves supporting the first connecting tube are arranged at both ends of the circular arc piece. The connection position of the circular arc connecting hole and the telescopic rod can be adjusted to make the heights of the two grooves level.

[0033] In one embodiment of the present invention, it also includes a rainproof baffle arranged on the whistle structure.

[0034] In one embodiment of the present invention, it also includes a visual monitoring device that can acquire images of the online acquisition device in real time, thereby reading the acquired data.

[0035] The above technical solution of the present invention has the following advantages compared with the prior art:

[0036] The online meteorological parameter collection device for overhead power transmission lines described in the present invention integrates meteorological parameter collection and warning and bird-repelling functions, reduces the number of equipment on the transmission line towers, and reduces maintenance difficulty and cost; the collection device of the present invention does not require an external power supply and can work without other power supply methods. It is suitable for remote areas or areas with difficulty in accessing power, and ensures the continuity and stability of data collection.

[0037] A connected cavity is adopted and filled with liquid. In one of the cup bodies, a double spiral connected blade is arranged. Wind force is collected by the rotating blades arranged outside the cup body, which drive the rotating blades arranged inside the cup body to rotate, so that the liquid in the cup body flows. During the flow, the height of the air column in the other cup body is changed, and the air column above the liquid is pushed to vibrate. A whistle structure is arranged on the other cup body, and vibration sounds of different frequencies can be emitted through the whistle structure, thereby achieving the effect of driving away birds and gas wild animals, and can play a certain warning role.

[0038] The lift effect generated by the rotation of the two rotating blades is utilized to cause the connecting tube to slide along the speed indicator rod. The current wind speed level is determined based on the scale value on the speed indicator rod corresponding to the sliding of the connecting tube. The wind force in the natural environment is used as the power to achieve self-driving of the device. In addition, one of the rotating blades is arranged in the liquid. When it rotates under the action of wind force, a certain rotational resistance can be generated. Compared with rotating directly in the air, it has a certain limiting effect. This is more conducive to distinguishing wind speed levels and can expand the collected wind speed range to a greater extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0040] Figure 1 It is a schematic diagram of the overall structure of the online meteorological parameter collection device for overhead power transmission lines of the present invention;

[0041] Figure 2 It is a structural schematic diagram of the communicating cavity of the present invention;

[0042] Figure 3 It is a schematic diagram of the structure of the double helical tube blades of the present invention;

[0043] Figure 4 It is a structural schematic diagram of the whistle structure of the present invention;

[0044] Figure 5 is a schematic structural diagram of the mounting frame of the present invention;

[0045] Figure 6 It is a structural schematic diagram of the telescopic rod of the present invention;

[0046] Figure 7 It is a structural schematic diagram of the rotating shaft of the present invention;

[0047] Figure 8 It is a schematic diagram of the structure in which the reversible super-thermochromic coating of the present invention is coated on a cup body.

[0048] Explanation of the reference numerals in the specification: 1. Mounting frame; 11. Oblique material slot; 2. Connecting rod assembly; 21. Telescopic rod; 211. Fixed end; 212. Output end; 213. Connecting hole; 214. Limit pin; 22. Rotating shaft; 221. Arc connecting hole; 222. Groove; 3. Connecting cavity; 31. Cup body; 32. First connecting pipe; 33. Second connecting pipe; 4. Double-helix connecting tube blades; 41. Connecting tube; 42. Rotating blades; 5. Speed ​​indicator rod; 6. Whistle structure; 61. Elliptical edges; 62. Circular opening; 7. Rain baffle; 8. Reversible super-temperature color-changing coating. DETAILED DESCRIPTION

[0049] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0050] Example 1

[0051] Reference Figure 1As shown, the present invention discloses an online meteorological parameter collection device for overhead power transmission lines, comprising: a mounting frame 1, a connecting rod assembly 2, a connecting cavity 3, a double-helix connecting tube blade 4, a speed measuring indicator rod 5 and a whistle structure 6, wherein: the mounting frame 1 is used to install the collection device on the overhead power transmission line; the connecting rod assembly 2 is connected to the mounting frame 1, and the connecting rod assembly 2 is used to support the connecting cavity 3, and according to the installation position and installation angle of the mounting frame 1, the state of the connecting rod assembly 2 is adjusted so that the connecting cavity 3 arranged on the connecting rod assembly 2 can maintain a horizontal state; the connecting cavity 3, the double-helix connecting tube blade 4, and the speed measuring indicator rod 5 cooperate to collect wind speed online without power supply; the connecting cavity 3 and the whistle structure 6 cooperate to emit vibration sounds of different frequencies during the process of collecting wind speed, so as to achieve the effect of driving away birds and gas wild animals, and can play a certain warning role.

[0052] Reference Figure 2 As shown, the connecting cavity 3 includes: two cup bodies 31 and a first connecting tube 32 and a second connecting tube 33 connecting the two cup bodies 31. The second connecting tube 33 is arranged above the first connecting tube 32. Both cup bodies 31 are filled with liquid. The filling height of the liquid is flush with the top surface height of the first connecting tube 32. In order to facilitate the flow of liquid, the first connecting tube 32 is set as a straight tube. In order to prevent the liquid from flowing in the second connecting tube 33, the second connecting tube 33 is set as an arc tube and bent upward. In this way, when the liquid flows in the first connecting tube 32, the liquid will not enter the second connecting tube 33, thereby ensuring the air flow in the second connecting tube 33.

[0053] In the two cup bodies 31, double helical connected blades 4 capable of collecting wind speed online, a speed indicator rod 5 and a whistle structure 6 capable of emitting vibration sounds of different frequencies are respectively arranged.

[0054] Reference Figure 3 As shown, the double-helix connected blade 4 includes a hollow connecting tube 41 and rotating blades 42 arranged at both ends of the connecting tube 41. The connecting tube 41 is inserted into one of the cup bodies 31, so that the two rotating blades 42 are respectively arranged in the cup body 31 and outside the cup body 31, and the rotating blades 42 arranged in the cup body 31 are immersed in the liquid. The speed indicator rod 5 is inserted into the connecting tube 41, and the speed indicator rod 5 and the connecting tube 41 are provided with a clearance fit so that the connecting tube 41 can slide relative to the speed indicator rod 5, and the speed indicator rod 5 is marked with scale values ​​corresponding to different levels of wind speed.

[0055] Reference Figure 4As shown, the whistle structure 6 corresponds to the double-helix connected blades 4 arranged at the cup mouth of another cup body 31. The whistle structure 6 consists of an elliptical edge 61 and a circular opening 62. When the airflow passes through the whistle, it will encounter the elliptical edge 61. This edge forces the airflow to separate and form two vortices. One vortex slides and disperses along the edge, forming a periodic movement to produce an edge sound. This periodic airflow pulsation will cause the vibration of the air column in the tube, thereby producing sound; and, as the airflow changes with the shape of the elliptical edge 61 of the whistle, the edge sound produced is also different. The frequency of the edge sound is proportional to the airflow velocity and inversely proportional to the distance from the airflow to the wedge.

[0056] In this embodiment, the online data collection device is installed on the overhead transmission line. Under the action of wind, the rotating blades 42 arranged outside the cup body 31 are blown to rotate, and the rotating blades 42 arranged inside the cup body 31 are synchronously driven to rotate, so that the liquid in the two cup bodies 31 flows in the first connecting tube 32, and the height of the air column in the other cup body 31 is changed during the flow, so that the air column above the liquid is driven to vibrate. In the connected cup body 31, the vibration frequency of the air column depends on the length of the air column. When the length of the air column changes after the liquid flows, its natural vibration frequency will also change, and a whistle structure 6 is set on the other cup body 31. Vibration sounds of different frequencies can be emitted through the whistle structure 6. When the frequency of the external sound source matches the natural frequency of the air column, the air column will resonate, thereby generating a larger amplitude and sound, thereby achieving the effect of expelling birds and gas wild animals, and can play a certain warning role.

[0057] Specifically, the filling height of the liquid is flush with the top surface height of the first connecting pipe 32, ensuring that a sound can be emitted through the whistle when the rotating blades 42 just start to rotate.

[0058] At the same time, under the action of wind force, the lift effect generated by the rotation of the two rotating blades 42 is used to cause the connecting tube 41 to slide along the speed indicator rod 5. The current wind speed level can be determined based on the scale value on the speed indicator rod 5 corresponding to the sliding of the connecting tube 41. Different wind forces correspond to different sliding positions of the connecting tube 41, so that the wind force in the natural environment can be used as power to realize self-driving of the device and the collection of wind force.

[0059] The online meteorological parameter collection device for overhead power transmission lines described in the present invention integrates meteorological parameter collection and warning and bird-repelling functions, reduces the number of equipment on the transmission line towers, and reduces maintenance difficulty and cost; the collection device of the present invention does not require an external power supply and can work without other power supply methods. It is suitable for remote areas or areas with difficulty in accessing power, and ensures the continuity and stability of data collection.

[0060] Specifically, when the double-helical connected tube blades 4 of this embodiment are used to convert wind force into lift, it is necessary to consider not only the upward lift generated by the rotation of the rotating blades 42, but also the buoyancy of the liquid and the resistance during rotation of the rotating blades 42 disposed in the liquid, the friction between the connecting tube 41 and the cup body 31, and the gravity of the double-helical connected tube blades 4 themselves.

[0061] Therefore, when marking the scale values ​​on the speed indicator rod 5, the scale values ​​on the speed indicator rod 5 are not evenly distributed, and need to be determined according to the resultant force relationship of the double helical tube blades 4. Specifically, through force analysis, it can be known that the relationship between the resultant forces generated by the double helical tube blades 4 at different wind speeds is:

[0062]

[0063] T is the torque generated by the rotating blade 42 under the action of wind, M is the resistance torque of the rotating blade 42 when rotating in the liquid, and M f is the friction torque between the connecting tube 41 and the cup body 31, F f is the buoyancy of the rotating blade 42 in the liquid, and m is the mass of the double helical tube blade 4.

[0064] In the formula, the torque generated by the rotating blade 421 under the action of wind is related to the force magnitude of the blade and the characteristic parameters of the blade, and the calculation formula is:

[0065]

[0066] ρ a is the air density, C is the lift coefficient, S is the equivalent area of ​​the blade, V is the ambient wind speed, and R is the blade radius, thereby determining the influence of the ambient wind speed on the lift of the double-helix connected blade 4.

[0067] In the formula, the rotating blade 422 drives the liquid to flow, and the empirical calculation formula of the resistance moment M when it rotates is as follows:

[0068] M=Kρ l ωd2

[0069] Where K is the experimental coefficient related to blade shape, blade number and angle; ρ i is the liquid density; ω is the rotational angular velocity; d2 is the characteristic size of the rotating blade 42;

[0070] Where, the buoyancy F of the rotating blade 42 is f for:

[0071] F f =ρ l V p

[0072] Where g is the acceleration due to gravity; V p is the volume submerged in the liquid.

[0073] According to the relationship between the force on the double helical tube blades 4 and the wind speed, the lift corresponding to different scale values ​​on the speed indicator rod 5 can be calculated, so that the marking position of the scale value of the speed indicator rod 5 can be determined according to different rotating blades 42.

[0074] Specifically, the length of the speed indicator rod 5 is twice the length of the cup body 31. The speed indicator rod 5 is inserted into the cup body 31 from the connecting tube 41 and abuts against the bottom of the cup body 31. The upper end of the speed indicator rod 5 protrudes from the cup body 31, and different scale values ​​are marked on the protruding part. For example, referring to Table 1, according to the wind level and wind speed correspondence table, the speed indicator rod 5 is marked with: breeze, gentle breeze, strong wind, strong wind, and gale, corresponding to level 3 to level 7 winds; and when marking the scale values, in order to make the scale values ​​more obvious, different colors can also be applied to facilitate observation of the corresponding positions.

[0075] Table 1 Correspondence between wind level and wind speed

[0076]

[0077] In actual use, in order to prevent the liquid in the connecting cavity 3 from volatilizing, the liquid is a non-volatile liquid. For example, the filled liquid can be transformer oil, which not only ensures that it is non-volatile, but also has the characteristics of anti-freezing in winter and anti-swelling in summer. In addition, according to the actual use situation, the liquid in the connecting cavity 3 is replaced and filled regularly.

[0078] Specifically, the online data acquisition device of this embodiment needs to be directly installed on the inclined material of the transmission line tower. According to the actual construction situation, the inclined material of the transmission line tower mainly includes two types: back-water inclined material and draft inclined material, which are defined according to the position of the inclined material relative to the direction of water flow. The "water" mentioned here does not refer to actual water, but is a metaphor for the direction of the inclined material relative to the wind direction or force, just like the flow of water;

[0079] When the design of the inclined material makes it mainly face away from the dominant wind direction or force, this inclined material is called backwater type. When installed on this inclined material, since its inclined material is away from the dominant wind, in order to collect wind force, it is necessary to set the collection device to form a certain angle with the inclined material;

[0080] If the design of the diagonal material makes it mainly face the direction of the dominant wind or force, this diagonal material is called a draft type. When installed on this diagonal material, since the diagonal material faces the dominant wind, in order to collect wind force, it can be directly installed on the diagonal material.

[0081] In summary, in order to enable the online acquisition device of this embodiment to simultaneously meet the installation requirements of the above two types of inclined materials, refer to Figure 5 As shown, the mounting frame 1 is provided with three oblique material slots 11, and the three oblique material slots 11 all penetrate the mounting frame 1 along the length direction of the mounting frame 1, and the cross section formed is similar to a π-shaped structure, wherein:

[0082] The two inclined material slots 11 are symmetrically arranged on the two sides of the mounting frame 1, and are used to connect with the backwater type tower inclined material. During the actual installation, the inclined material slots 11 on the left and right sides are respectively connected with the backwater type inclined materials in different directions;

[0083] A diagonal material slot 11 is provided on the ground of the mounting frame 1 for connecting with the diagonal material of the draft type tower. Through the above connection method, the collection device can be placed as much as possible on the outside of the tower, where the wind receiving surface is larger.

[0084] Specifically, in order to facilitate the connection between the mounting frame 1 and the diagonal material, preferably, the mounting frame 1 is made of a permanent magnet material, which can be easily adsorbed on the pole tower without the need for additional installation steps.

[0085] When the voltage level of the overhead transmission line is determined, the thickness range of the diagonal material is determined, and the diagonal material slot 11 of the bottom plate is designed to adapt to tower diagonals of different types and widths to ensure that the device can be stably installed on the tower.

[0086] Specifically, in order to conveniently fix the connecting rod assembly 2 on the mounting frame 1 , a threaded hole is opened on the mounting frame 1 , and a fixing bolt is passed through the threaded hole to fix the connecting rod assembly 2 .

[0087] In the present embodiment, the purpose of providing the connecting rod assembly 2 is to adjust the state of the connecting rod assembly 2 according to the installation position and angle of the mounting frame 1, so that the connecting cavity 3 provided on the connecting rod assembly 2 can always maintain a horizontal state. Through the adjustment function of the connecting rod assembly 2, the mounting frame 1 can be flexibly installed on the tower inclined materials of different heights and angles. The height can be adjusted by the connecting rod assembly 2 to adapt to different installation positions. In principle, it is sufficient not to collide with the inclined materials. Therefore, in the present embodiment, the connecting rod assembly 2 should have height adjustment function and angle adjustment function. Therefore, the connecting rod assembly 2 is provided to at least include: a telescopic rod 21 and a rotating shaft 22, which can respectively adjust the height and relative inclination angle of the connecting cavity 3 relative to the mounting frame 1.

[0088] Reference Figure 6As shown, the telescopic rod 21 includes a fixed end 211 and an output end 212. The fixed end 211 of the telescopic rod 21 is arranged on the mounting frame 1. The output end 212 of the telescopic rod 21 can adjust the distance from the mounting frame 1. The fixed end 211 and the output end 212 can slide relative to each other, thereby changing the height of the entire telescopic rod 21. Corresponding connecting holes 213 are opened at positions corresponding to the fixed end 211 and the output end 212. After adjusting the relative positions of the fixed end 211 and the output end 212, a limiting pin 214 is inserted into the connecting hole 213 to fix the fixed end 211 and the output end 212.

[0089] Reference Figure 7 As shown, the rotating shaft 22 is arranged at the output end 212 of the telescopic rod 21, and the rotating shaft 22 is an arc piece. A circular arc connecting hole 221 that can be connected to the telescopic rod 21 is arranged in the middle of the circular arc piece. The rotating shaft 22 can be fixed to the telescopic rod 21 by passing a fixing bolt through the circular arc connecting hole 221. Grooves 222 supporting the first connecting tube 32 are arranged at both ends of the circular arc piece. By adjusting the connection position of the circular arc connecting hole 221 and the telescopic rod 21, the heights of the two grooves 222 can be level.

[0090] In the actual installation process, when the position of the tower diagonal material is at a certain vertical angle, the installation position of the mounting plate needs to be consistent with the angle of the tower diagonal material. At this time, the collection device can be moved away from the tower diagonal material by adjusting the telescopic rod 21. At the same time, by adjusting the fixed position of the rotating shaft 22 and the telescopic rod 21, it is ensured that the connecting cavity 3 connected thereto always maintains a horizontal position, so that the liquid heights in the two cups 31 in the connecting cavity 3 are consistent.

[0091] Specifically, during actual use, a whistle structure 6 is provided on the cup body 31, and the whistle structure 6 is directly connected to the outside. In order to prevent rainwater from entering the whistle structure 6, a rainproof baffle 7 is also provided on the whistle structure 6. In order not to affect the sound of the whistle structure 6, the rainproof baffle 7 is not directly covered in the whistle structure 6, but is erected above the cup body 31 through a pillar, which only plays a role in shielding the whistle structure 6 and does not block the whistle structure 6.

[0092] Example 2

[0093] As we all know, in the field of meteorological parameter collection of overhead transmission lines, wind speed, icing and temperature have a great influence on the mechanical strength and electrical spacing of overhead transmission lines. They are the main meteorological parameters that need to be considered in line design, and are called the three elements of meteorological conditions. When calculating the mechanical and physical properties and specific loads of overhead lines, it is first necessary to determine the information of the three elements of meteorological conditions, determine the parameter information under specific working conditions, and then obtain the specific loads acting in different directions based on the parameter information, such as: vertical specific load, horizontal specific load and comprehensive specific load.

[0094] The online collection device described in Example 1 can realize real-time collection of wind speed. In order to expand the function of the online collection device of the present invention, based on the above Example 1, in this embodiment, the online collection device of the present invention is also provided to realize real-time collection of temperature.

[0095] Reference Figure 8 As shown, in order to realize temperature collection, a reversible super-temperature color-changing coating 8 is also coated on the cup body 31. The reversible super-temperature color-changing coating 8 is a special functional coating material, which can change color when the temperature is higher than a specific value, and when the temperature returns to the initial state, the color can also be restored to the original color. The reversible super-temperature color-changing coating 8 has different rated detection temperatures. For example: a rated detection temperature of the reversible super-temperature color-changing coating 8 is 10°C. When the ambient temperature is below 10°C, the color of the reversible super-temperature color-changing coating 8 is white in the initial state. When the temperature exceeds 10°C, the color of the reversible super-temperature color-changing coating 8 turns red. When the temperature returns to below 10°C, the color of the reversible super-temperature color-changing coating 8 turns white again.

[0096] Utilizing the color-changing characteristics of the reversible super-temperature color-changing coating 8, in this embodiment, the reversible super-temperature color-changing coating 8 is sequentially coated on the cup body 31 along the height direction of the cup body 31 according to the gradient change of the rated detection temperature. For example, the rated temperature of the reversible super-temperature color-changing coating 8 coated on the bottom of the cup body 31 is -20°C, and with a gradient of 10°C, the reversible super-temperature color-changing coating 8 with rated temperatures of -10°C, 0°C, 10°C...50°C are sequentially coated from the bottom of the cup body 31 upward. In this way, a columnar temperature display can be formed on the cup body 31, making it easier to read the temperature status.

[0097] Before actual use, the measurement temperature of the reversible super-thermochromic coating 8 is calibrated according to the actual measurement temperature. The calculation method of the indication error ΔT of each calibration temperature point is:

[0098]

[0099] Wherein: T1 is the temperature indicated by the reversible temperature measuring paint bar at the calibration temperature point; Ts1 is the temperature indicated by the standard thermometer at the calibration temperature point; T2 is the temperature indicated by the reversible temperature measuring paint bar at the calibration temperature point; Ts2 is the temperature indicated by the standard thermometer at the calibration temperature point.

[0100] After the reversible super-temperature color-changing coating 8 is coated, its actual rated temperature value can be calibrated, and the calibrated rated color-changing temperature value can be marked on the cup body 31 .

[0101] Furthermore, in actual use, the temperature range of the reversible super-temperature color-changing coating 8 can be determined according to the limit value of the ambient temperature, and the temperature change gradient of the reversible super-temperature color-changing coating 8 can also be controlled according to the accuracy requirements of temperature control.

[0102] On the basis of the above-mentioned embodiments, the online acquisition device of the present invention also includes a visualization monitoring device. The online acquisition device of the present invention is arranged within the detection range of the visualization monitoring device. The image of the online acquisition device can be obtained in real time through the visualization monitoring device, so as to read the collected data, making the data more intuitive and easy to understand, improving the readability and usability of the data, and facilitating the operation and maintenance personnel to quickly understand the line status remotely.

[0103] Specifically, in an extremely harsh environment, when the double-helix connected tube blades 4 in the online acquisition device are frozen and cannot rotate, they need to be manually de-iced to ensure that they can rotate normally.

[0104] In combination with Example 1 and Example 2, the online collection device for meteorological parameters of overhead transmission lines of the present invention realizes online collection of data information for wind speed and temperature of transmission meteorological conditions. In practical applications, it is combined with the icing information collected in another invention patent of the company's application, publication number: CN118587647A, invention name: Transmission line icing detection method, device, storage medium and electronic equipment, to obtain the three elements of transmission meteorological conditions, determine the parameter information under specific working conditions, analyze the specific working conditions, calculate engineering parameters, load ratio, stress and other data, further judge the sag of the conductor and the ground wire under different working conditions, the unbalanced tension of the overhead transmission line, the stress condition of the tower, etc., calculate the icing load ratio and stress by inputting line parameters and relevant meteorological conditions, and calculate the sag of any point after icing; the program can calculate the sag of the conductor and ground wire, the distance between the wires and the safe distance from the crossing objects in real time, grasp the line operation conditions in real time, and make scientific decisions and disposal.

[0105] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. An online collection device for meteorological parameters of overhead power transmission lines, characterized in that: include: A connecting cavity, comprising: two cup bodies and a first connecting pipe and a second connecting pipe connecting the two cup bodies, wherein the second connecting pipe is arranged above the first connecting pipe, and the two cup bodies are filled with liquid, and the filling height of the liquid is flush with the top surface height of the first connecting pipe; The double helical connecting tube blade comprises a hollow connecting tube and rotating blades arranged at both ends of the connecting tube, wherein the connecting tube is inserted into one of the cup bodies, and the two rotating blades are arranged in the cup body and outside the cup body respectively, and the rotating blades arranged in the cup body are immersed in the liquid; A speed indicator rod is inserted into the connecting tube, and scale values ​​corresponding to different levels of wind speed are marked on the speed indicator rod; A whistle structure, corresponding to the double helical tube blades, is arranged at the cup mouth of another cup body; Under the action of wind, the rotating blades arranged outside the cup body are blown to rotate, and the rotating blades arranged inside the cup body are synchronously driven to rotate, so that the liquids in the two cup bodies flow in the first connecting pipe, and the air column above the liquid is pushed to vibrate, and vibration sounds of different frequencies can be emitted through the whistle structure; Furthermore, the lift effect generated by the rotation of the two rotating blades is utilized to cause the connecting tube to slide along the speed indicator rod, and the current wind speed level is determined according to the scale value on the speed indicator rod corresponding to the sliding of the connecting tube.

2. The device for collecting meteorological parameters of overhead power transmission lines according to claim 1, characterized in that: When marking the scale value on the speed indicator rod, the relationship between the resultant force generated by the double helical tube blades according to different wind speeds is: T is the torque generated by the rotating blades under the action of wind, M is the resistance torque when the rotating blades rotate in the liquid, M f is the friction torque between the connecting tube and the cup body, F f is the buoyancy of the rotating blade in the liquid, and m is the mass of the double helical tube blade; in: ρ a is the air density, C is the lift coefficient, S is the equivalent area of ​​the blade, V is the ambient wind speed, and R is the blade radius.

3. The device for collecting meteorological parameters of overhead power transmission lines according to claim 1, characterized in that: The liquid is a non-volatile liquid.

4. The device for collecting meteorological parameters of overhead power transmission lines according to claim 1, characterized in that: The cup body is also coated with a reversible super-temperature color-changing coating, which has different rated detection temperatures. The reversible super-temperature color-changing coating is sequentially coated on the cup body along the height direction of the cup body according to the gradient change of the rated detection temperature.

5. The device for collecting meteorological parameters of overhead power transmission lines according to claim 4 is characterized in that: The measurement temperature of the reversible super-temperature color-changing coating is calibrated according to the actual measurement temperature. The calculation method of the indication error ΔT of each calibration temperature point is: Where: T1 is the temperature indicated by the reversible temperature measuring paint bar at the calibration temperature point; T s1 T is the temperature indication of the standard thermometer at the upper stroke of the calibration temperature point; T2 is the temperature indication of the reversible temperature measuring paint bar at the lower stroke of the calibration temperature point; T s2 It is the temperature indication of the standard thermometer at the calibration temperature point.

6. The device for collecting meteorological parameters of overhead power transmission lines according to claim 1, characterized in that: Also includes: mounting bracket and linkage assembly; The mounting frame is used to be fixed on the diagonal material of the tower of the overhead power transmission line; The connecting rod assembly is arranged on the mounting frame to support the connecting cavity so that the two cup bodies in the connecting cavity are level.

7. The device for collecting meteorological parameters of overhead power transmission lines according to claim 6, characterized in that: The mounting frame is provided with three oblique material slots, and the three oblique material slots all penetrate the mounting frame along the length direction of the mounting frame, wherein: Two of the inclined material slots are symmetrically arranged on the two sides of the mounting frame, and are used to connect with the inclined material of the backwater type pole tower; one of the inclined material slots is arranged on the ground of the mounting frame, and is used to connect with the inclined material of the draft type pole tower; The mounting frame is made of permanent magnet material.

8. The device for collecting meteorological parameters of overhead power transmission lines according to claim 6, characterized in that: The connecting rod assembly comprises: The telescopic rod has a fixed end disposed on the mounting frame, and an output end capable of adjusting the distance from the mounting frame: A rotating shaft is arranged at the output end of the telescopic rod, and the rotating shaft is an arc piece. A circular arc connecting hole that can be connected to the telescopic rod is arranged in the middle of the circular arc piece, and grooves supporting the first connecting tube are arranged at both ends of the circular arc piece. The connection position of the circular arc connecting hole and the telescopic rod can be adjusted to make the heights of the two grooves level.

9. The device for collecting meteorological parameters of overhead power transmission lines according to claim 1, characterized in that: It also includes a rainproof baffle plate arranged on the whistle structure.

10. The device for collecting meteorological parameters of overhead power transmission lines according to claim 1, characterized in that: It also includes visual monitoring equipment that can obtain images of the online collection device in real time to read the collected data.

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