CN107655979A - The lossless detection method of rear edge of wind turbine blade adhesion zone - Google Patents
The lossless detection method of rear edge of wind turbine blade adhesion zone Download PDFInfo
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- CN107655979A CN107655979A CN201710666376.XA CN201710666376A CN107655979A CN 107655979 A CN107655979 A CN 107655979A CN 201710666376 A CN201710666376 A CN 201710666376A CN 107655979 A CN107655979 A CN 107655979A
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- trailing edge
- adhesion zone
- wind turbine
- turbine blade
- rear edge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/225—Supports, positioning or alignment in moving situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/015—Attenuation, scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of lossless detection method of rear edge of wind turbine blade adhesion zone, it comprises the following steps：The wide measurement of glue of trailing edge adhesion zone and the detection of the glue-line defect of trailing edge adhesion zone.The lossless detection method of rear edge of wind turbine blade adhesion zone provided by the invention, detected using through transmission technique, 100% Non-Destructive Testing of the rear edge of wind turbine blade adhesion zone of irrelevancy row can be realized, and screened by many experiments, trailing edge scanning frock is developed in design, can coaxial synchronous move two probes ensure that two probes are constantly on the cross section of the same thickness in rear edge of wind turbine blade adhesion zone, greatly improve the detection efficiency of trailing edge, there can be starved to the wide measurement of glue of trailing edge adhesion zone and trailing edge adhesion zone, the defects of cavity and bonding layering, is detected, it is greatly improved the quality and service life of blade, reduce maintenance cost.
Description
Technical field
The present invention relates to a kind of wind rotor blade of wind generator quality detection device, and in particular to a kind of rear edge of wind turbine blade
The lossless detection method of adhesion zone.
Background technology
As wind-powered electricity generation industry is fast-developing, Wind turbines constantly develop towards the Enlargement Tendency, and the length of blade is also continuous
Increase, the manufacturing cost of blade is also more and more expensive, and it accounts for complete machine totle drilling cost and reaches 10%-15%.For the machine of operation
Group, if quality problems occurs in blade, not only repair and change costly, but also the steady of whole unit operation can be influenceed
Qualitative and security, especially for Large marine fan blade, the cost of its transport, lifting and maintenance is all very high, thus logical
Cross effective detection means and find that defect is very important in the fabrication stage.
Rear edge of wind turbine blade adhesion zone is detected using single probe pulse bounce technique, can only detect wind electricity blade PS faces and SS faces
Parallel zone, but the adhesion zone for meeting the requirement on blade is considerably less, and most of region is that PS faces and SS faces are not parallel
Region, rear edge of wind turbine blade adhesion zone is mostly not parallel region, preferable bottom reflection echo can not be obtained, using list
Probe pulse bounce technique can not realize trailing edge full inspection.
The content of the invention
Goal of the invention：The invention aims to solve the deficiencies in the prior art, there is provided rear edge of wind turbine blade adhesion zone
Lossless detection method.The present invention can be used for the detection in the not parallel region in rear edge of wind turbine blade adhesion zone, can be to trailing edge adhesion zone
The wide measurement of glue and trailing edge adhesion zone starved be present, detected the defects of cavity and bonding layering, be greatly improved blade
Quality and service life, reduce maintenance cost.
Technical scheme：In order to realize the purpose of the present invention, the technical solution adopted by the present invention is：
A kind of lossless detection method of rear edge of wind turbine blade adhesion zone, it comprises the following steps：
A, the wide measurement of the glue of trailing edge adhesion zone
Using trailing edge scanning frock, by a pair of probe placements in the both sides up and down of trailing edge bonding region, then gradually
Increase the gain of supersonic detector, until signal height reaches all over the screen 80%；Then coaxial synchronous moves two probes, really
Protect two probes to be constantly on the cross section of trailing edge bonding region of same thickness, when signal height declines 12db position
Put, the position is the marginal position of rear edge of wind turbine blade bonding region；
B, the detection of the glue-line defect of trailing edge adhesion zone
Using trailing edge scanning frock, by a pair of probe placements in the both sides up and down of trailing edge bonding region, then gradually
Increase the gain of supersonic detector until signal height reaches all over the screen 80%, then coaxial synchronous moves two probes, really
Protect two probes to be constantly on the cross section of trailing edge bonding region of same thickness, Scanning speed is controlled in 150mm/s
Within, each scanning path must assure that the overlap joint of at least 25% wafer diameter size；When signal height decline 12db position,
The position is the glue-line defect area in rear edge of wind turbine blade bonding region.
Preferably, the lossless detection method of above-described rear edge of wind turbine blade adhesion zone, step (1) and step
(2) probe is preferably the probe of 0.5 inch of 1.0MHz diameters in.
Preferably, the lossless detection method of above-described rear edge of wind turbine blade adhesion zone, step (1) and step
(2) supersonic detector is that supersonic detector is the supersonic detectors of OLYMPUS EPOCH 600/650 in.
Preferably, the lossless detection method of above-described rear edge of wind turbine blade adhesion zone, trailing edge scanning frock
Including support, rack-mount 2 interfaces popped one's head in and 2 probe jackets water inlets, rack-mount scanning coding
Device and the tangential adjusting knob of probe installed in support both sides.Described end protective cover water inlet interface is connected with suction pump, and probe connects
Mouth is connected with probe.
Beneficial effect：Compared to the prior art the lossless detection method of rear edge of wind turbine blade adhesion zone provided by the invention has
Have the advantage that：
The lossless detection method of rear edge of wind turbine blade adhesion zone provided by the invention, is detected using through transmission technique, it is possible to achieve
100% Non-Destructive Testing of the rear edge of wind turbine blade adhesion zone of irrelevancy row, and screened by many experiments, trailing edge is developed in design
Scanning frock, can coaxial synchronous move two probes ensure that two probes are constantly in the same thickness in rear edge of wind turbine blade adhesion zone
On the cross section of degree, the detection efficiency of trailing edge is greatly improved, can be existed to the wide measurement of glue of trailing edge adhesion zone and trailing edge adhesion zone
The defects of starved, cavity and bonding layering, is detected, and is greatly improved the quality and service life of blade, reduce maintenance into
This.
Brief description of the drawings
Fig. 1 is the schematic diagram of trailing edge scanning frock provided by the invention.
Fig. 2 is the schematic diagram of probe scanning of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
The present invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's
The modification of the kind equivalent form of value falls within the application appended claims limited range.
Embodiment 1
The present embodiment uses a supersonic detector of OLYMPUS EPOCH 600/650 and OLYMPUS V101
(1MHz0.5 inches) pops one's head in.
A kind of lossless detection method of rear edge of wind turbine blade adhesion zone, it comprises the following steps：
A, the wide measurement of the glue of trailing edge adhesion zone
Using trailing edge scanning frock as shown in Fig. 2 a pair of probes 1 are positioned over into up and down the two of trailing edge bonding region
Side, the gain of supersonic detector is then gradually increased, until signal height reaches all over the screen 80%；Then trailing edge scanning is passed through
Frock coaxial synchronous moves two probes 1, it is ensured that two probes 1 are constantly in the horizontal stroke of the trailing edge bonding region of same thickness
On section, when signal height declines 12db position, the position is the marginal position of rear edge of wind turbine blade bonding region；
B, the detection of the glue-line defect of trailing edge adhesion zone
Using trailing edge scanning frock, a pair of probes 1 are positioned over to the both sides up and down of trailing edge bonding region, then gradually
The gain of increase supersonic detector reaches all over the screen 80% up to signal height, then passes through trailing edge scanning frock coaxial synchronous
Mobile two probes 1, it is ensured that two probes 1 are constantly on the cross section of trailing edge bonding region of same thickness, scanning
Speed control is within 150mm/s, as shown in Fig. 2 each scanning path of popping one's head in must assure that at least 25% wafer diameter size
Overlap joint；When signal height declines 12db position, the position is the glue-line defect area in rear edge of wind turbine blade bonding region.
As shown in figure 1, the lossless detection method of above-described rear edge of wind turbine blade adhesion zone, described trailing edge scanning work
Dress includes support 2,2 on support 2 probe interface 3 and two probe jacket water inlet interfaces 4, on support 2
Scanning encoder 5 and installed in the tangential adjusting knob 6 of the probe of 2 both sides of support 2；Two described probe jacket water inlet interfaces
4 are connected with suction pump.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of lossless detection method of rear edge of wind turbine blade adhesion zone, it is characterised in that it comprises the following steps：
A, the wide measurement of the glue of trailing edge adhesion zone
Using trailing edge scanning frock, a pair of probes (1) are positioned over to the both sides up and down of trailing edge bonding region, then gradually increased
Add the gain of supersonic detector, until signal height reaches all over the screen 80%；Then coaxial synchronous moves two probes (1),
Ensure that two probes (1) are constantly on the cross section of trailing edge bonding region of same thickness, Scanning speed control exists
Within 150mm/s, the overlap joint of each scanning path clustering at least 25% wafer diameter size；When signal height declines 12db position
Put, the position is the marginal position of rear edge of wind turbine blade bonding region；
B, the detection of the glue-line defect of trailing edge adhesion zone
Using trailing edge scanning frock, a pair of probes (1) are positioned over to the both sides up and down of trailing edge bonding region, then gradually increased
Add the gain of supersonic detector until signal height reaches all over the screen 80%, then coaxial synchronous moves two probes (1), really
Protect two probes (1) to be constantly on the cross section of trailing edge bonding region of same thickness, Scanning speed control exists
Within 150mm/s, each scanning path must assure that the overlap joint of at least 25% wafer diameter size；When signal height declines 12db
Position, the position be rear edge of wind turbine blade bonding region in glue-line defect area.
2. the lossless detection method of rear edge of wind turbine blade adhesion zone according to claim 1, it is characterised in that step (1)
With the probe (1) that probe (1) in step (2) is 0.5 inch of 1.0MHz diameters.
3. the lossless detection method of rear edge of wind turbine blade adhesion zone according to claim 1, it is characterised in that step (1)
It is that supersonic detector is the supersonic detectors of OLYMPUS EPOCH 600/650 with supersonic detector in step (2).
4. the lossless detection method of the rear edge of wind turbine blade adhesion zone according to any one of claims 1 to 3, its feature exist
In,
Described trailing edge scanning frock includes support (2), 2 probe interfaces (3) and 2 probe shields on support (2)
Cover water inlet interface (4), the scanning encoder (5) on support (2) and the tangential regulation of probe installed in support (2) both sides
Knob (6)；Described end protective cover water inlet interface (4) is connected with suction pump, and probe interface (3) is connected with probe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666376.XA CN107655979A (en) | 2017-08-07 | 2017-08-07 | The lossless detection method of rear edge of wind turbine blade adhesion zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666376.XA CN107655979A (en) | 2017-08-07 | 2017-08-07 | The lossless detection method of rear edge of wind turbine blade adhesion zone |
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| Publication Number | Publication Date |
|---|---|
| CN107655979A true CN107655979A (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710666376.XA Pending CN107655979A (en) | 2017-08-07 | 2017-08-07 | The lossless detection method of rear edge of wind turbine blade adhesion zone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057518A (en) * | 2019-05-21 | 2019-07-26 | 山东理工大学 | A kind of loading method and device for rear edge of wind turbine blade component |
| CN112229906A (en) * | 2019-07-15 | 2021-01-15 | 中国航发商用航空发动机有限责任公司 | Aeroengine blade detection device |
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| CN103994032A (en) * | 2014-06-04 | 2014-08-20 | 洛阳双瑞风电叶片有限公司 | Method for remotely monitoring damage of interlayer structure of wind power blade |
| CN104458910A (en) * | 2014-12-16 | 2015-03-25 | 中国科学院工程热物理研究所 | Nondestructive testing method for bonding defects of shell of wind turbine blade and web plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057518A (en) * | 2019-05-21 | 2019-07-26 | 山东理工大学 | A kind of loading method and device for rear edge of wind turbine blade component |
| CN112229906A (en) * | 2019-07-15 | 2021-01-15 | 中国航发商用航空发动机有限责任公司 | Aeroengine blade detection device |
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Application publication date: 20180202 |
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