CN208459330U - A kind of detection device of guide vanes of water turbine crackle - Google Patents
A kind of detection device of guide vanes of water turbine crackle Download PDFInfo
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- CN208459330U CN208459330U CN201821022884.0U CN201821022884U CN208459330U CN 208459330 U CN208459330 U CN 208459330U CN 201821022884 U CN201821022884 U CN 201821022884U CN 208459330 U CN208459330 U CN 208459330U
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- water turbine
- guide vanes
- acoustic emission
- detection device
- crackle
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Abstract
The utility model discloses a kind of detection devices of guide vanes of water turbine crackle, it is characterised in that: including acoustic emission sensor, sound emission acquisition host and central control unit；The acoustic emission sensor is mounted on the position in the top end surface or guide vane and servomotor connecting support arm of each guide vane of the hydraulic turbine close to guide vane top end surface；The acoustic emission sensor acquires host with sound emission by sound emission cable and connect；The sound emission acquisition host is connect by controlling cable with central control unit.Using the utility model, in turbine-generator units operational process, the operating condition of real-time detection guide vanes of water turbine issues alarm when finding that guide vanes of water turbine is cracked in time, power station operation maintenance personnel is submitted to be overhauled.
Description
Technical field
The utility model relates to Metal Crack detection device, the detection of specifically a kind of guide vanes of water turbine crackle is filled
It sets.
Background technique
In the process of running, due to the impact force of moment, pressure, guide vane can bear very big stress, and casting to the hydraulic turbine
Stress caused by defect (such as casting crack, stomata and slag inclusion etc.) extension etc. is concentrated, and guide vane is easy to produce crackle, and guide vane is split
The vibration of the hydraulic turbine is gently then caused after line, guide vane is likely to occur breaking releasing when serious, and the guide vane to fall off pours the hydraulic turbine and can make
It is damaged at the seriousness of turbine blade.
Guide vanes of water turbine main body is in a relatively closed space, is immersed in pressure water for a long time, due to this ring
The limitation in border and space, there is presently no the real-time detection that a kind of good equipment is used for guide vanes of water turbine crackle, can only indirectly according to
The detection of guide vanes of water turbine crackle is completed by uncapping inspection when the vibration frequency specturm analysis or maintenance down of unit.Therefore regular
Shutdown guide vanes of water turbine crack detection, not only seriously affected power station normal table operation, more greatly reduce electricity
The economic benefit stood.
Utility model content
Purpose of the utility model is to solve above-mentioned technical problems, provide a kind of detection dress of guide vanes of water turbine crackle
It sets, using the device, in turbine-generator units operational process, the operating condition of real-time detection guide vanes of water turbine, when discovery water
Alarm is issued when turbine guide vane is cracked in time, power station operation maintenance personnel is submitted to be overhauled.
Realizing the technical solution of the utility model is: a kind of detection device of guide vanes of water turbine crackle, it is characterised in that: packet
Include acoustic emission sensor, sound emission acquisition host and central control unit；The acoustic emission sensor is mounted on the every of the hydraulic turbine
Close to the position of guide vane top end surface in the top end surface or guide vane and servomotor connecting support arm of one guide vane；The sound emission passes
Sensor acquires host with sound emission by sound emission cable and connect；The sound emission acquisition host is controlled by control cable and center
Device connection processed.
Mounting means of the acoustic emission sensor on same guide vanes of water turbine is all the same.
The installation site of acoustic emission sensor on the guide vanes of water turbine carries out sanding and polishing processing.
The acoustic emission sensor is installed using magnetic clasp.
Daubing coupling agent between the acoustic emission sensor and installation position.
The central control unit is industrial personal computer.
The industrial personal computer is equipped with warning device.
The beneficial effects of the utility model are:
The device of the utility model is to be produced by installing acoustic emission sensor on the top of guide vanes of water turbine to detect guide vane
Acoustic emission signal when raw crackle, while collection analysis software will be sent to after acoustic emission signal transformation, processing by acquisition host,
Neural network recognization, spectrum analysis, wavelet analysis etc. are carried out to acoustic emission signal by collection analysis software, guide vanes of water turbine is split
Line provides intuitive alarm signal, and transmission characteristic of the acoustic emission signal in metal material is utilized in this device, from guide vane top
End surface nearby acquires signal, solves the problems, such as that guide vane checks sensor since space and environmental restrictions cannot be mounted directly,
The real-time detection to guide vanes of water turbine crackle is realized, ensure that the safe operation of the hydraulic turbine.
Detailed description of the invention
Fig. 1 be the utility model relates to crack detection device system diagram；
Fig. 2 is the acoustic emission sensor schematic view of the mounting position of the utility model embodiment 1；
Fig. 3 is the acoustic emission sensor schematic view of the mounting position of the utility model embodiment 2；
Fig. 4 be the utility model relates to guide vane schematic shapes；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the left view of Fig. 4.
Figure label: 1-acoustic emission sensor, 2-sound emission cables, 3-sound emissions acquire host, and 4-control cables,
5-industrial personal computers, 6-guide vanes, 7-servomotors, 8-connecting support arms.
Specific embodiment
Embodiment 1
As shown in Figure 1, Figure 2, shown in fig. 4 to fig. 6: a kind of detection device of guide vanes of water turbine crackle, including acoustic emission sensor
1, sound emission acquisition host 3 and central control unit industrial personal computer 5；The acoustic emission sensor 1 is mounted on each of the hydraulic turbine
The top end surface position of guide vane 6；The acoustic emission sensor 1 acquires host 3 with sound emission by sound emission cable 2 and connect；Institute
Sound emission acquisition host 3 is stated to connect by controlling cable 4 with industrial personal computer 5.Acoustic emission sensor 1 on the guide vanes of water turbine 6
Installation site carry out sanding and polishing processing.The acoustic emission sensor is installed using magnetic clasp.The acoustic emission sensor 1 and peace
Fill daubing coupling agent between position.The industrial personal computer 5 is equipped with warning device.
Its detecting step of the detection device of the guide vanes of water turbine crackle of the present embodiment is as follows:
Acoustic emission sensor 1 is installed to the top end surface of guide vane 6, specific steps by the first step are as follows: first to the top of guide vane 6
End surface carries out sanding and polishing processing, then the uniform daubing coupling agent in the top end surface of guide vane 6 and voice sending sensor 1,
Acoustic emission sensor 1 is finally fixed on to using magnetic clasp the endface position at the top of guide vane 6.By remaining acoustic emission sensor 1
It is installed on other guide vanes 6 of the hydraulic turbine, different guide vanes of water turbine quantity is different, and 1 mounting means of acoustic emission sensor is equal
It is identical；
Whole acoustic emission sensors 1 are connected to sound emission by sound emission cable 2 and acquired on host 3 by second step；
Sound emission acquisition host 3 is connected to the industrial personal computer for being equipped with collection analysis software by third step by control cable 4
On 5；
4th step, powers on, and acoustic emission detection system brings into operation, the operating condition of real-time detection guide vanes of water turbine 6,
Alarm is issued in time when finding that guide vanes of water turbine 6 is cracked.
Embodiment 2
As shown in Fig. 1, Fig. 3 to Fig. 6: a kind of detection device of guide vanes of water turbine crackle, including acoustic emission sensor 1, sound
Transmitting acquisition host 3 and central control unit industrial personal computer 5；The acoustic emission sensor 1 is mounted on each guide vane 6 of the hydraulic turbine
Guide vane and 7 connecting support arm 8 of servomotor on close to guide vane top end surface position；The acoustic emission sensor 1 passes through sound emission
Cable 2 is connect with sound emission acquisition host 3；The sound emission acquisition host 3 is connect by controlling cable 4 with industrial personal computer 5.It is described
The installation site of acoustic emission sensor 1 on guide vanes of water turbine 6 carries out sanding and polishing processing.The acoustic emission sensor uses magnetic
Button installation.Daubing coupling agent between the acoustic emission sensor 1 and installation position.The industrial personal computer is equipped with warning device.
The detecting step of the detection device of the guide vanes of water turbine crackle of the utility model is as follows:
Acoustic emission sensor 1 is installed to guide vane 6 and pushed up on servomotor connecting support arm 8 close to guide vane 6 by the first step, such as Fig. 3
The position of end surface, specific steps are as follows: first carried out at sanding and polishing on connecting support arm 8 close to the position of 6 top end surface of guide vane
Reason, then on connecting support arm 8 close to 6 top end surface of guide vane position and voice sending sensor 1 on uniform daubing coupling agent, most
Acoustic emission sensor 1 is fixed on connecting support arm 8 on the position of 6 top end surface of guide vane using magnetic clasp afterwards.By remaining
Acoustic emission sensor 1 is installed on other guide vanes of the hydraulic turbine, and different guide vanes of water turbine quantity is different, and mounting means is homogeneous
Together；
Whole acoustic emission sensors 1 are connected to sound emission by sound emission cable 2 and acquired on host 3 by second step；
Sound emission acquisition host 3 is connected to the industrial personal computer for being equipped with collection analysis software by third step by control cable 4
On 5；
4th step, powers on, and acoustic emission detection system brings into operation, the operating condition of real-time detection guide vanes of water turbine 6,
Alarm is issued in time when finding that guide vanes of water turbine 6 is cracked.
It should be noted that each particular technique feature described in above-mentioned specific embodiment, in reconcilable feelings
Under condition, it can be combined by any suitable mode.In order to avoid unnecessary repetition, the utility model is to various possibility
Combination be not described.
Claims (7)
1. a kind of detection device of guide vanes of water turbine crackle, it is characterised in that: acquire host including acoustic emission sensor, sound emission
And central control unit；The acoustic emission sensor is mounted on the top end surface or guide vane and relay of each guide vane of the hydraulic turbine
Close to the position of guide vane top end surface on device connecting support arm；The acoustic emission sensor is acquired by sound emission cable and sound emission
Host connection；The sound emission acquisition host is connect by controlling cable with central control unit.
2. the detection device of guide vanes of water turbine crackle according to claim 1, it is characterised in that: the acoustic emission sensor exists
Mounting means on same guide vanes of water turbine is all the same.
3. the detection device of guide vanes of water turbine crackle according to claim 1 or claim 2, it is characterised in that: the guide vanes of water turbine
On acoustic emission sensor installation site carry out sanding and polishing processing.
4. the detection device of guide vanes of water turbine crackle according to claim 1 or claim 2, it is characterised in that: the voice sending sensor
Device is installed using magnetic clasp.
5. the detection device of guide vanes of water turbine crackle according to claim 1 or claim 2, it is characterised in that: the voice sending sensor
Daubing coupling agent between device and installation position.
6. the detection device of guide vanes of water turbine crackle according to claim 1, it is characterised in that: the central control unit is
Industrial personal computer.
7. the detection device of guide vanes of water turbine crackle according to claim 6, it is characterised in that: the industrial personal computer is equipped with report
Alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821022884.0U CN208459330U (en) | 2018-06-29 | 2018-06-29 | A kind of detection device of guide vanes of water turbine crackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821022884.0U CN208459330U (en) | 2018-06-29 | 2018-06-29 | A kind of detection device of guide vanes of water turbine crackle |
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| CN208459330U true CN208459330U (en) | 2019-02-01 |
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| CN201821022884.0U Active CN208459330U (en) | 2018-06-29 | 2018-06-29 | A kind of detection device of guide vanes of water turbine crackle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077969A1 (en) * | 2020-10-15 | 2022-04-21 | 国能大渡河检修安装有限公司 | Fault test system and fault diagnosis method for single or multi-coupling rotor system |
| CN115370522A (en) * | 2022-09-09 | 2022-11-22 | 中国长江电力股份有限公司 | Test method for simulating real machine fault on model water turbine |
| GB2608212A (en) * | 2020-10-15 | 2022-12-28 | Chn Energy Dadu River Repair & Installation Co Ltd | Fault test system and fault diagnosis method for single or multi-coupling rotor system |
-
2018
- 2018-06-29 CN CN201821022884.0U patent/CN208459330U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077969A1 (en) * | 2020-10-15 | 2022-04-21 | 国能大渡河检修安装有限公司 | Fault test system and fault diagnosis method for single or multi-coupling rotor system |
| GB2608212A (en) * | 2020-10-15 | 2022-12-28 | Chn Energy Dadu River Repair & Installation Co Ltd | Fault test system and fault diagnosis method for single or multi-coupling rotor system |
| CN115370522A (en) * | 2022-09-09 | 2022-11-22 | 中国长江电力股份有限公司 | Test method for simulating real machine fault on model water turbine |
| CN115370522B (en) * | 2022-09-09 | 2024-03-29 | 中国长江电力股份有限公司 | Test method for simulating true machine fault on model water turbine |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 614900 central control building, Hekou Road, Shawan Town, Shawan District, Leshan City, Sichuan Province Patentee after: Guoneng Daduhe maintenance and installation Co.,Ltd. Address before: 614900 central control building, Hekou Road, Shawan Town, Shawan District, Leshan City, Sichuan Province Patentee before: GUODIAN DADUHE MAINTENANCE & INSTALLATION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |