CN202433018U - Tower drum measuring device of wind generating set and tower drum - Google Patents

Tower drum measuring device of wind generating set and tower drum Download PDF

Info

Publication number
CN202433018U
CN202433018U CN2011205731772U CN201120573177U CN202433018U CN 202433018 U CN202433018 U CN 202433018U CN 2011205731772 U CN2011205731772 U CN 2011205731772U CN 201120573177 U CN201120573177 U CN 201120573177U CN 202433018 U CN202433018 U CN 202433018U
Authority
CN
China
Prior art keywords
tower tube
flange
cylinder
inclination
wind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2011205731772U
Other languages
Chinese (zh)
Inventor
牛文铁
朱建军
刘峰
罗振军
赵建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chifeng Huayuan New Power Technology Co., Ltd.
Original Assignee
CHIFENG BAIRUN TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHIFENG BAIRUN TECHNOLOGY Co Ltd filed Critical CHIFENG BAIRUN TECHNOLOGY Co Ltd
Priority to CN2011205731772U priority Critical patent/CN202433018U/en
Application granted granted Critical
Publication of CN202433018U publication Critical patent/CN202433018U/en
Anticipated expiration legal-status Critical
Active legal-status Critical Current

Links

Abstract

The utility model provides a power drum measuring device of a wind generating set and a tower drum. The tower drum comprises a first connecting cylinder and a second connecting cylinder, wherein a first flange is arranged at the end part of the first connecting cylinder; a second flange is arranged at the end part of the second connecting cylinder; the first connecting cylinder is fixedly connected with the second connecting cylinder through the flanges; and the measuring device comprises an inclination acceleration sensor group fixedly arranged on the first flange through a first cantilever, wherein the inclination acceleration sensor group comprises an inclination sensor and an acceleration sensor and is arranged on a position of the end part on the first cantilever, which is away from the first flange. According to the technical scheme of the utility model, the inclination deformation of the tower drum is detected by the inclination sensor and the acceleration sensor which are arranged on the flanges, the accuracy of the inclination deformation measurement of the tower drum can be effectively improved and the cost is lower.

Description

Wind-powered electricity generation unit tower tube measurement mechanism and tower tube
Technical field
The utility model relates to wind-powered electricity generation unit tower tube measuring technique, relates in particular to a kind of wind-powered electricity generation unit tower tube measurement mechanism and tower tube.
Background technology
The tower tube is the load-supporting part in the wind power generating set, is bearing thrust, moment of flexure and the torque load of comprising complicated and changeable, makes that distortion such as waving of certain amplitude and distortion can appear in the tower tube in the wind power generating set operational process; In addition, the tower tube also can receive the influence of factors such as material deformation, parts inefficacy and settlement of foundation, produces.The excessive inclination and distortion of tower tube can influence the normal operation of wind power generating set, and serious also can produce security incident, therefore, need measure in real time the inclination and distortion of tower tube.
At present, when the tower tube being carried out the inclination and distortion measurement, a plurality of GPS receivers are installed on the tower tube normally; Draw the inclination and distortion curve that obtains the tower tube according to gps measurement data; This mode cost is higher, and when calculating the distortion of tower tube, does not consider the characteristics of the nonlinear deformation of tower tube; Normally be out of shape the deflection that calculates the tower tube based on single inclination angle and rigid body, the deformation curve that causes calculating the tower tube is inaccurate.In addition, also have in the prior art, detect the inclination and distortion of tower tube through the mode of inclination sensor is set on the tower tube, it does not consider tower tube nonlinear deformation yet when the tower tube is measured characteristics, the tower tube deformation curve that obtains is inaccurate.
But when a plurality of GPS of existing employing detected tower tube inclination and distortion, cost was higher and measure inaccurate; And when utilizing inclination sensor separately, also can exist measure inaccurate.
The utility model content
The utility model provides a kind of wind-powered electricity generation unit tower tube measurement mechanism and tower tube, can effectively overcome the cost height that exists when existing tower tube is measured or measure inaccurate problem, can effectively improve the accuracy that the tower tube is measured, and cost is low.
The utility model provides a kind of wind-powered electricity generation unit tower tube measurement mechanism; Said tower tube comprises first connecting cylinder and second connecting cylinder; The end of said first connecting cylinder is provided with first flange; The end of said second connecting cylinder is provided with second flange, and said first connecting cylinder is fixedly connected through flange with second connecting cylinder, and said measurement mechanism comprises:
Be installed in the inclination acceleration sensor group on said first flange through first cantilever, said inclination acceleration sensor group comprises inclination sensor and acceleration transducer, is arranged on said first cantilever end position away from said first flange.
In the above-mentioned wind-powered electricity generation unit tower tube measurement mechanism, said acceleration transducer is arranged on the said inclination sensor.
In the above-mentioned wind-powered electricity generation unit tower tube measurement mechanism, said acceleration transducer is arranged on the position near said inclination sensor.
In the above-mentioned wind-powered electricity generation unit tower tube measurement mechanism, be adsorbed with permanent magnet on said first flange;
Said first semi-girder is through being bolted on the said permanent magnet.
Above-mentioned wind-powered electricity generation unit tower tube measurement mechanism also can comprise:
Be installed in the acceleration transducer on said second flange through second cantilever.
The utility model provides a kind of wind-powered electricity generation unit tower tube; Said tower tube comprises first connecting cylinder and second connecting cylinder; The end of said first connecting cylinder is provided with first flange; The end of said second connecting cylinder is provided with second flange, and said first connecting cylinder is fixedly connected through flange with second connecting cylinder;
Be installed with the tilt acceleration sensor groups through first cantilever on said first flange, said tilt acceleration sensor groups comprises inclination sensor and acceleration transducer, is arranged on said first cantilever end position away from said first flange.
In the above-mentioned wind-powered electricity generation unit tower tube, said acceleration transducer is arranged on the said inclination sensor.
In the above-mentioned wind-powered electricity generation unit tower tube, said acceleration transducer is arranged on the position near said inclination sensor.
In the above-mentioned wind-powered electricity generation unit tower tube, be adsorbed with permanent magnet on said first flange;
Said first semi-girder is through being bolted on the said permanent magnet.
In the above-mentioned wind-powered electricity generation unit tower tube, be installed with acceleration transducer through second cantilever on said second flange.
Wind-powered electricity generation unit tower tube measurement mechanism and tower tube that the utility model provides are provided with inclination sensor and acceleration transducer through the flange place at the tower tube, can take into account the tower tube simultaneously and tilt and nonlinear deformation, improve the accuracy that tower tube inclination and distortion is measured; Simultaneously, flange is provided with inclination sensor and acceleration sensor can have less testing cost through being arranged on, and can effectively satisfy tower tube inclination and distortion and measure needs; In the utility model technical scheme,, can further whether deform and measure, can avoid the flange bad connection and cause the tower tube to occur and the fault of collapsing flange through on two flanges, acceleration transducer being set respectively.
Description of drawings
The wind-powered electricity generation unit tower tube measurement mechanism structural representation that Fig. 1 provides for the utility model embodiment one;
Fig. 2 is the mounting structure enlarged diagram of A place measurement mechanism among Fig. 1;
Structural representation when Fig. 3 opens for flange among the utility model embodiment.
Embodiment
The wind-powered electricity generation unit tower tube measurement mechanism structural representation that Fig. 1 provides for the utility model embodiment one; Fig. 2 is the mounting structure enlarged diagram of A place measurement mechanism among Fig. 1.Like Fig. 1-shown in Figure 2; Tower tube 1 is the load bearing component in the wind power generating set in the present embodiment; Comprise first connecting cylinder 11 and second connecting cylinder 12; First connecting cylinder 11 and second connecting cylinder, 12 relative two ends are respectively arranged with first flange 21 and second flange 22, and this first connecting cylinder 11 is connected the fixing tower tube that forms with second connecting cylinder 12 through first flange 21 with second flange 22, wherein connect through bolt 23 between first flange 21 and second flange 22; First flange 21 is installed with inclination acceleration sensor group 4 through first semi-girder 31; This inclination acceleration sensor group 4 comprises the inclination sensor 41 and first acceleration transducer 42; All be arranged on first semi-girder 31 end position, and first acceleration transducer 42 is installed on the inclination sensor 41 away from first flange 21.In the present embodiment through inclination acceleration sensor group is set on flange; Inclination sensor wherein capable of using is measured the inclination of tower tube; The distortion that while inclination sensor capable of using and acceleration sensor are measured the tower tube can effectively improve the accuracy that tower tube inclination and distortion is measured; In addition, through using cantilever inclination acceleration sensor group is set, can be convenient to the installation of acceleration sensor group, the while is the length of cantilever capable of using also, improves the measuring accuracy of inclination sensor and acceleration transducer.
In the present embodiment, as shown in Figure 2, being adsorbed with permanent magnet 5, the first semi-girders 31 on first flange 21 can like this, can be convenient to the installation of semi-girder through being bolted on this permanent magnet 5, improves the convenience that semi-girder is installed.
It will be appreciated by those skilled in the art that; The semi-girder of appropriate length can be set in the practical application as required; When the relative tower tube of sensor of guaranteeing the end setting is fixing; Can effectively improve the sensor's response ability, need, improve accuracy and reliability that tower tube inclination and distortion is measured with the measurement that improves tower tube inclination and distortion.
In the present embodiment; Of Fig. 2, second flange 22 is installed with second acceleration transducer 43 through second semi-girder 32, like this; Measured value through first acceleration transducer 42 and second acceleration transducer 43; Just can confirm the folding phenomenon whether occurs between first flange 21 and second flange 22, thereby can judge that whether bolt 23 between fixing first flange 21 and second flange 22 occurs losing efficacy etc. bad, avoids bolt 23 to lose efficacy and causes the tower tube to tilt or collapse.
In the present embodiment; It is bad distortion such as folding between definite first flange 21 and second flange 22, whether to occur; Specifically can confirm along the component of tower tube axial direction, when the vertical component of first acceleration transducer 42 and 43 measurements of second acceleration transducer differs big according in the acceleration transducer measured value; Just can judge distortion bad phenomenon such as occurring folding between first flange 21 and second flange 22, bolt 23 possibly lose efficacy.
Structural representation when Fig. 3 opens for flange among the utility model embodiment.As shown in Figure 3, when first flange 21 and second flange 22 open, explain that the bolt 23 that connects first flange 21 and second flange 22 possibly deform; Bolt 23 possibly lose efficacy; At this moment, detect the accekeration that obtains through first acceleration transducer 42 and second acceleration transducer 43 and just can determine their folding angle size, to confirm whether bolt lost efficacy; And can in time notify the related personnel to handle, avoid causing the tower tube to tilt or collapsing because of bolt failure.Particularly, at t folding angle α constantly Gap(t) adopt following formula to calculate:
α gap ( t ) = arctan a ( t ) ω 2 L
In the formula, a (t) is the vertical component difference of the measured value of the t moment first acceleration transducer and second acceleration transducer, and ω is the frequency of acceleration amplitude fluctuation, can obtain through acceleration measurement is carried out spectrum analysis, and L is the length of semi-girder.
Understand for the utility model technical scheme being had better, the inclination and distortion principle of measuring the tower tube in the face of the utility model embodiment through inclination acceleration sensor group down describes.
It will be appreciated by those skilled in the art that; When utilizing above-mentioned inclination sensor and acceleration transducer that the inclination and distortion of tower tube is measured, can confirm the deflection of tower tube according to the value in a plurality of moment that measure; Particularly; Can static deformation, quasistatic distortion and dynamic deformation be resolved in the distortion of tower tube, and can suppose that the inclination and distortion of tower tube is X (h, t)=(m+n Δ t) h r+ ch sCos ω Δ t, wherein Δ t=t-t0 is the time increment to the measurement moment t t0 zero hour in relative measurement cycle; (h t) is the deformation equation of tower tube to X, and promptly the h of tower tube highly is in t horizontal displacement constantly; (m+n Δ t) h rBe the static quasistatic deformation equation of tower tube, ch sCos ω Δ t is the dynamic deformation equation of tower tube; M, n, c, ω, r, s are for describing the parameter of tower tube distortion, kept stable in a measuring period.T0 wherein may be selected to be when acceleration transducer and in a period of time, reaches the peaked moment.
Further, through X (h t) carries out differentiate, just can obtain acceleration and the relation between the tower tube height, i.e. the acceleration equation of tower tube:
X · · ( h , t ) = - ω 2 c h s cos ωΔt , (Δt=t-t0)。
Wherein, just representes that the tower tube measuring constantly t, highly is being the acceleration of h.
In addition, because the deformation curve of tower tube is a consecutive curve, therefore, for the pitch angle at tower tube differing heights place, can satisfy following equation:
Tan α ( h , t ) = DX ( h , t ) Dh = ( m + NΔ t ) r h r - 1 + Cs h s - 1 Cos ω Δ t , (Δ t=t-t0), wherein, α is the pitch angle of tower tube at height h place.
Therefore, with respect to a measuring period that begins constantly with t0, get three different moment t1 if choose wantonly; T2; T3, acceleration that difference is measured constantly and pitch angle bring into above-mentioned equation and tan α (h, t); Just can confirm X (h; T) each the deflection m in, n, c, ω, r, s, thus can obtain the tower tube the inclination and distortion equation X (h, t).Its concrete computation process repeats no more at this.
Obtain after the tower body distortion, consider that again the tower tube that causes at flange folding angle tilts, then structural strain's X Total(h, t) can adopt following formula:
X total ( h , t ) = X ( h , t ) + ( h - h 1 ) tan &alpha; gap ( t ) , h 1 < h < H X ( h , t ) , 0 < h < h 1 .
Wherein H is the overall height of tower tube, and h1 is the setting height(from bottom) of acceleration transducer.What should explain is; Actual wind-powered electricity generation unit tower tube can be made up of 2 joints or the above connecting cylinder of 2 joints; The utility model embodiment is not limited to have only the situation of 2 joint connecting cylinders, can be applied to the tower tube that is made up of the above connecting cylinder of 2 joints through similar derivation, no longer explains at this.
In addition, the utility model embodiment also provides a kind of wind-powered electricity generation unit tower tube, and this wind-powered electricity generation unit tower tube comprises the measurement mechanism that above-mentioned the utility model embodiment provides, and concrete structure can repeat no more at this referring to the explanation of above-mentioned Fig. 1-Fig. 3 embodiment.
The utility model embodiment can be applicable in various types of aerogenerators; Brace foundation as aerogenerator; In the wind-powered electricity generation unit course of work; Can effectively improve the stability and the reliability of wind-powered electricity generation unit operation through implementing to come tower tube inclination and distortion situation is detected according to the sensor that is provided with on the tower tube.
What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.

Claims (10)

1. wind-powered electricity generation unit tower tube measurement mechanism; Said tower tube comprises first connecting cylinder and second connecting cylinder; The end of said first connecting cylinder is provided with first flange, and the end of said second connecting cylinder is provided with second flange, and said first connecting cylinder is fixedly connected through flange with second connecting cylinder; It is characterized in that said measurement mechanism comprises:
Be installed in the inclination acceleration sensor group on said first flange through first cantilever, said inclination acceleration sensor group comprises inclination sensor and acceleration transducer, is arranged on said first cantilever end position away from said first flange.
2. wind-powered electricity generation unit tower tube measurement mechanism according to claim 1 is characterized in that said acceleration transducer is arranged on the said inclination sensor.
3. wind-powered electricity generation unit tower tube measurement mechanism according to claim 1 is characterized in that said acceleration transducer is arranged on the position near said inclination sensor.
4. wind-powered electricity generation unit tower tube measurement mechanism according to claim 1 is characterized in that, is adsorbed with permanent magnet on said first flange;
Said first semi-girder is through being bolted on the said permanent magnet.
5. wind-powered electricity generation unit tower tube measurement mechanism according to claim 1 is characterized in that, also comprises:
Be installed in the acceleration transducer on said second flange through second cantilever.
6. wind-powered electricity generation unit tower tube; It is characterized in that said tower tube comprises first connecting cylinder and second connecting cylinder, the end of said first connecting cylinder is provided with first flange; The end of said second connecting cylinder is provided with second flange, and said first connecting cylinder is fixedly connected through flange with second connecting cylinder;
Be installed with the tilt acceleration sensor groups through first cantilever on said first flange, said tilt acceleration sensor groups comprises inclination sensor and acceleration transducer, is arranged on said first cantilever end position away from said first flange.
7. wind-powered electricity generation unit tower tube according to claim 6 is characterized in that said acceleration transducer is arranged on the said inclination sensor.
8. wind-powered electricity generation unit tower tube according to claim 6 is characterized in that said acceleration transducer is arranged on the position near said inclination sensor.
9. wind-powered electricity generation unit tower tube according to claim 6 is characterized in that, is adsorbed with permanent magnet on said first flange;
Said first semi-girder is through being bolted on the said permanent magnet.
10. wind-powered electricity generation unit tower tube according to claim 6 is characterized in that, is installed with acceleration transducer through second cantilever on said second flange.
CN2011205731772U 2011-12-31 2011-12-31 Tower drum measuring device of wind generating set and tower drum Active CN202433018U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205731772U CN202433018U (en) 2011-12-31 2011-12-31 Tower drum measuring device of wind generating set and tower drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205731772U CN202433018U (en) 2011-12-31 2011-12-31 Tower drum measuring device of wind generating set and tower drum

Publications (1)

Publication Number Publication Date
CN202433018U true CN202433018U (en) 2012-09-12

Family

ID=46782458

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205731772U Active CN202433018U (en) 2011-12-31 2011-12-31 Tower drum measuring device of wind generating set and tower drum

Country Status (1)

Country Link
CN (1) CN202433018U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103243743A (en) * 2013-05-21 2013-08-14 福州大学 Quantitative detection method of safe reliability of tower foundation of wind generator
CN104142229A (en) * 2013-05-10 2014-11-12 中科风电(北京)有限公司 Online wind turbine generator system flange bolt monitoring and failure diagnosis system
CN104963928A (en) * 2015-07-22 2015-10-07 李圣用 System for reducing wind driven generator bolt scheduled maintenance frequency
CN106248049A (en) * 2016-08-31 2016-12-21 上海应谱科技有限公司 Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method
CN106640546A (en) * 2016-10-20 2017-05-10 安徽容知日新科技股份有限公司 System and method for monitoring tower drum of wind power generation equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142229A (en) * 2013-05-10 2014-11-12 中科风电(北京)有限公司 Online wind turbine generator system flange bolt monitoring and failure diagnosis system
CN103243743A (en) * 2013-05-21 2013-08-14 福州大学 Quantitative detection method of safe reliability of tower foundation of wind generator
CN104963928A (en) * 2015-07-22 2015-10-07 李圣用 System for reducing wind driven generator bolt scheduled maintenance frequency
CN106248049A (en) * 2016-08-31 2016-12-21 上海应谱科技有限公司 Wind turbines tower foundation uneven settlement off-line checking method and on-line monitoring method
CN106640546A (en) * 2016-10-20 2017-05-10 安徽容知日新科技股份有限公司 System and method for monitoring tower drum of wind power generation equipment
CN106640546B (en) * 2016-10-20 2019-01-22 安徽容知日新科技股份有限公司 The system and method that the tower of a kind of pair of wind power plant is monitored

Similar Documents

Publication Publication Date Title
CN202433018U (en) Tower drum measuring device of wind generating set and tower drum
CN103616157B (en) The quiet calibration system of wind-tunnel balance body axle system and method
CN102183363B (en) Dynamic characteristic parameter test device and method of sliding guide rail junction surface
CN102589512B (en) Method, device and system for measuring skew deformation amount of tower of wind generating set
Currie et al. Structural integrity monitoring of onshore wind turbine concrete foundations
CN104215196B (en) It is applicable to the monitoring and pre-alarming method of historic building structure deformation
CN103389183A (en) Spacecraft quality characteristic comprehensive test board based on spherical air bearing
CN203982627U (en) Multifunctional girder structure experimental provision
CN207018147U (en) Blower fan tower barrel monitoring system
CN102914282A (en) Monitoring and measuring method using displacement sensor to measure tunnel deformation
Sun et al. Superwide-range fiber bragg grating displacement sensor based on an eccentric gear: Principles and experiments
Opoka et al. Damage detection and localization method based on a frequency spectrum change in a scaled tripod model with strain rosettes
CN104792615B (en) A kind of soil pressure testing device and earth pressure test modified computing method
CN104990719A (en) Unmanned aerial vehicle test bed system for inspection and detection
CN101736728B (en) Elastic beam type side wall frictional resistance dynamometer
CN201488859U (en) Novel dynamic balance experiment table
CN102175354B (en) Method for measuring steel strut axial force by utilizing adhered steel sheet
CN105547586B (en) Moment of flexure sensor calibration apparatus
CN1948634B (en) Method and device of measuring deflection settling of engineering structure body
CN102288152A (en) Device and method for measuring deflection of bridge structure
CN207215347U (en) A kind of nonmetallic anti-float anchor rod multiple solutions shear stress joint test device
CN202582504U (en) Reflective grating strainometer
Dallyn et al. Prediction of wear in grouted connections for offshore wind turbine generators
CN204556393U (en) A kind of soil pressure testing device
CN204789006U (en) A unmanned aerial vehicle test bench system for test detection

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHIFENG HUAYUAN XINLI TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: CHIFENG BAIRUN TECHNOLOGY CO., LTD.

CP03 Change of name, title or address

Address after: 024005 room 217, Aoxiang Fortune Tower, Songshan District, the Inner Mongolia Autonomous Region, Chifeng

Patentee after: Chifeng Huayuan New Power Technology Co., Ltd.

Address before: 024005 Aoxiang Fortune Tower, Songshan District, the Inner Mongolia Autonomous Region, Chifeng 409

Patentee before: Chifeng Bairun Technology Co., Ltd.