CN218206926U

CN218206926U - Tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo

Info

Publication number: CN218206926U
Application number: CN202222553455.9U
Authority: CN
Inventors: 许如清; 李文田; 杨子龙; 张肖飞
Original assignee: Datang Henan Cleaning Energy Co ltd
Current assignee: Datang Henan Cleaning Energy Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-01-03
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to a tower drum vibration monitoring device based on a flexible tower drum, including cabin monitoring sensor group and tower bottom monitoring sensor group, cabin monitoring sensor group includes cabin horizontal axis vibration sensor, cabin vertical axis vibration sensor, and cabin horizontal axis vibration sensor is used for detecting the amount of displacement of tower drum top in the X1 direction, and cabin vertical axis vibration sensor is used for detecting the amount of displacement of tower drum top in the Y1 direction; the tower bottom detection sensor group comprises a tower bottom horizontal axis vibration sensor and a tower bottom vertical axis vibration sensor, the tower bottom horizontal axis vibration sensor is used for detecting the displacement of the bottom of the tower barrel in the X2 direction, and the tower bottom vertical axis vibration sensor is used for detecting the displacement of the bottom of the tower barrel in the Y2 direction in the horizontal plane; the utility model discloses can carry out more comprehensive, accurate detection to the tower section of thick bamboo vibration condition, solve the technical problem that the small defect of the flexible tower section of thick bamboo of present wind turbine generator system is difficult to the discovery.

Description

Tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo

Technical Field

The utility model relates to a wind power generation technical field, more specifically say that it relates to a tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo.

Background

Wind generating set is the system that converts the kinetic energy of wind into electric energy, install in the cabin more to the vibration detection device that wind turbine generator system used in the existing market, driving chain and inside the blade, highly increase at a tower section of thick bamboo, under the influence of cost factor, appear using light material, the flexible tower section of thick bamboo wind turbine generator system that the pylon flexibility increases gradually, low damping characteristic has aggravated the pylon vibration effect, increase tower section of thick bamboo vibration risk, consequently, it is especially important to the safety of a tower section of thick bamboo and even whole wind turbine generator system to monitor tower section of thick bamboo vibration, lack the device of monitoring wind turbine generator system flexible tower section of thick bamboo unusual vibrations at present, the small defect of wind turbine generator system flexible tower section of thick bamboo is difficult to discover, complete machine safety is unfavorable for guaranteeing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo can solve the technical problem that the small defect of the flexible tower section of thick bamboo of wind turbine generator system is difficult to the discovery among the prior art.

The utility model provides a following technical scheme: a tower drum vibration monitoring device based on a flexible tower drum comprises a cabin monitoring sensor group and a tower bottom monitoring sensor group, wherein the cabin monitoring sensor group comprises a cabin horizontal shaft vibration sensor and a cabin vertical shaft vibration sensor which are installed on the tower drum wall of a cabin yawing platform, the cabin horizontal shaft vibration sensor is used for detecting the displacement of the top of the tower drum in the X1 direction, the cabin vertical shaft vibration sensor is used for detecting the displacement of the top of the tower drum in the Y1 direction, and the X1 and the Y1 are in two mutually perpendicular directions in the same horizontal plane;

detect sensor group including installing tower bottom horizontal axis vibration sensor and the vertical axis vibration sensor of tower bottom on tower bottom tower section of thick bamboo wall at the tower bottom, tower bottom horizontal axis vibration sensor is used for detecting the displacement volume of tower section of thick bamboo bottom in the X2 direction, and vertical axis vibration sensor is used for detecting the displacement volume of tower section of thick bamboo bottom Y2 side in the horizontal plane at the tower bottom, and X2 is two directions of mutually perpendicular in the same horizontal plane with Y2.

Further, tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo still includes communication cable, power module, switch, and power module is used for monitoring sensor group, the monitoring sensor group power supply at the bottom of the tower to cabin monitoring sensor group, communication cable is used for connecting cabin monitoring sensor group and switch, the monitoring sensor group and switch at the bottom of the tower, and the switch is used for the signal outwards transmission who will accept.

Further, the communication cable is located inside the tower.

Further, the power module and the switch are located at a tower base at the bottom of the tower.

Further, tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo still includes on-line monitoring system and communication optical cable, the switch passes through communication optical cable and is connected with on-line monitoring system, and on-line monitoring system is used for real-time online collection, calculation tower section of thick bamboo vibration data.

To sum up, the utility model discloses following beneficial effect has: the monitoring sensor group of the tower drum vibration monitoring device based on the flexible tower drum is provided with vibration sensors which are respectively used for monitoring the displacement of a measuring point in two vertical directions in a horizontal plane, a two-dimensional coordinate shaft system in the horizontal plane is established at the measuring point, and detected data can be used for representing any vector of the measuring point in the horizontal plane and providing a sampling basis for accurately representing and monitoring the vibration amplitude of the measuring point; on the other hand, the engine room monitoring sensor group and the tower bottom monitoring sensor group are respectively arranged at the maximum vibration amplitude position (engine room) and the minimum vibration amplitude position (tower bottom) of the tower, so that the attitude information and the vibration condition of the tower can be comprehensively mastered, the early warning capability is improved, the personnel can find and solve the problems of the tower in time, and the safety of the whole machine is powerfully guaranteed. The communication cable is used for transmitting signals, has the characteristics of reliable connection and stable signal transmission, is positioned in the tower barrel, is not easily corroded and damaged by the external environment, and ensures the stability of signal transmission; the power module and the switch are arranged at a tower base at the bottom of the tower barrel, so that replacement and maintenance are convenient; the online monitoring system samples the cabin monitoring sensor group and the tower bottom monitoring sensor group data, and can realize the functions of real-time monitoring, early warning, fault alarming and trend analysis by calculation and analysis on the basis of data.

Drawings

Fig. 1 is a schematic structural view of a tower drum vibration monitoring device according to an embodiment 1 of the present invention, which is used at a side view angle;

fig. 2 is a schematic structural view of a tower vibration monitoring device 1 according to an embodiment of the present invention, which is used at a front view angle;

reference numerals: 1-a tower drum; 2-the top of the tower; 3-the bottom of the tower; 4-switch and power module.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The utility model discloses a tower section of thick bamboo vibration monitoring devices's concrete embodiment 1 based on flexible tower section of thick bamboo:

a tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo includes two monitoring sensor groups, communication cable, switch and power module 4, communication optical cable and on-line monitoring system, two monitoring sensor groups are cabin monitoring sensor group and tower bottom monitoring sensor group respectively, wherein cabin monitoring sensor group installs 2 departments at wind turbine generator system's tower section of thick bamboo top, it is specific, cabin monitoring sensor group installs on cabin driftage platform tower section of thick bamboo wall, including cabin horizontal axis vibration sensor and cabin vertical axis vibration sensor, cabin horizontal axis vibration sensor is used for detecting the displacement volume of tower section of thick bamboo top in X1 direction, cabin vertical axis vibration sensor is used for detecting the displacement volume of tower section of thick bamboo top in Y1 direction, X1 and Y1 are two vertical directions that are located same horizontal plane, therefore cabin detection sensor can detect the displacement value of four directions of tower section of thick bamboo top X1 in horizontal plane, Y1, -X1, -Y1.

The monitoring sensor group at the bottom of the tower is installed on the wall of the tower bottom tower cylinder, including the horizontal axis vibration sensor at the bottom of the tower and the vertical axis vibration sensor at the bottom of the tower, the horizontal axis vibration sensor at the bottom of the tower is used for detecting the displacement of the bottom of the tower in the X2 direction, the vertical axis vibration sensor at the bottom of the tower is used for detecting the displacement of the bottom of the tower in the Y2 direction in the horizontal plane, X2 and Y2 are two mutually perpendicular directions in the same horizontal plane, therefore, the monitoring sensor group at the bottom of the tower can detect the displacement value of the bottom of the tower in the X2, Y2, -X2, -Y2 four directions in the horizontal plane.

The switch and the power supply module 4 are positioned at a tower base at the bottom of the tower, and the power supply module is a 24V power supply and is used for supplying power to the two monitoring sensor groups. The switch is connected with the two monitoring sensor groups through the communication cable, the switch is connected with an external online monitoring system through the communication optical cable, the monitoring sensor groups transmit collected signals to the switch during use, the switch transmits the collected signals to the online detection system, and the online monitoring system can calculate and analyze on the basis of data to realize functions of real-time monitoring, early warning, fault alarm, trend analysis and the like.

The utility model provides a tower section of thick bamboo vibration monitoring devices based on flexible tower section of thick bamboo, it is equipped with two vibration sensors that are used for monitoring two vertical direction displacement volume in the horizontal plane respectively in monitoring sensor group, two-dimensional coordinate shafting in the horizontal plane is established to the measuring point, the sampling data can be used for expressing the arbitrary vector in measuring point place horizontal plane, two monitoring sensor groups set up department at cabin and tower bottom respectively, can detect the biggest amplitude of oscillation and the minimum amplitude of oscillation in the tower section of thick bamboo vibration process respectively, help comparatively comprehensive grasp tower section of thick bamboo vibration state and gesture, for in time discovering and solving tower section of thick bamboo problem, improve the early warning ability and provide the monitoring facilities basis. In addition, the utility model discloses still have compact structure brief, simple to operate, firm reliable advantage, switch and power module maintain conveniently, and communication cable receives a tower section of thick bamboo protection, and signal transmission is comparatively stable.

Above only the utility model discloses a preferred embodiment, the utility model discloses a scope not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. A tower drum vibration monitoring device based on a flexible tower drum is characterized by comprising a cabin monitoring sensor group and a tower bottom monitoring sensor group, wherein the cabin monitoring sensor group comprises a cabin horizontal axis vibration sensor and a cabin vertical axis vibration sensor which are arranged on the wall of a tower drum of a cabin yawing platform, the cabin horizontal axis vibration sensor is used for detecting the displacement of the top of the tower drum in the X1 direction, the cabin vertical axis vibration sensor is used for detecting the displacement of the top of the tower drum in the Y1 direction, and the X1 and the Y1 are two mutually perpendicular directions in the same horizontal plane;

2. The tower vibration monitoring device based on the flexible tower as claimed in claim 1, further comprising a communication cable, a power module and a switch, wherein the power module is used for supplying power to the cabin monitoring sensor group and the tower bottom monitoring sensor group, the communication cable is used for connecting the cabin monitoring sensor group and the switch and the tower bottom monitoring sensor group and the switch, and the switch is used for transmitting the received signals outwards.

3. The flexible tower-based tower vibration monitoring apparatus as recited in claim 2, wherein the communication cable is located within the tower.

4. The tower vibration monitoring device based on the flexible tower as claimed in claim 2 or 3, wherein the power module and the switch are located at a tower base at the bottom of the tower.

5. The tower drum vibration monitoring device based on the flexible tower drum as claimed in claim 2 or 3, further comprising an online monitoring system and a communication optical cable, wherein the switch is connected with the online monitoring system through the communication optical cable, and the online monitoring system is used for collecting and calculating tower drum vibration data in real time on line.