CN104154986A - Installation method of optical fiber acceleration sensor for turbine generator stator end vibration measurement - Google Patents
Installation method of optical fiber acceleration sensor for turbine generator stator end vibration measurement Download PDFInfo
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- CN104154986A CN104154986A CN201410418196.6A CN201410418196A CN104154986A CN 104154986 A CN104154986 A CN 104154986A CN 201410418196 A CN201410418196 A CN 201410418196A CN 104154986 A CN104154986 A CN 104154986A
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- optical fiber
- fiber acceleration
- sensor
- acceleration transducer
- turbine generator
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Abstract
The invention relates to an installation method of an optical fiber acceleration sensor for turbine generator stator end vibration measurement. The method comprises the steps that the optical fiber acceleration sensor is preinstalled on an insulating padding plate through an instant adhesive, the insulating padding plate is a glass plate with the thickness being 2.0 mm, the insulating padding plate is installed on a component to be measured through a small quantity of instant adhesive, the outer side of the optical fiber acceleration sensor is bound by polyester viscose with the thickness being 0.8 mm, the outer side of the polyester viscose is bound by two circles in the mode that a polyester glass rope is soaked in an epoxy resin adhesive, and curing needs to be carried out for more than 12 hours after binding is finished. According to the installation method, the problem that a sensor for turbine generator stator end vibration measurement is hard to assemble or disassemble is solved, the experiment proves that the insulating padding plate with the thickness being 2.0 mm has the 0.2-0.4%. influence on data, and the influence is within the error allowance range. Meanwhile, the sensor for vibration measurement can be repeatedly used, so that the cost is saved.
Description
Technical field
The present invention relates to the installation method of optical fiber acceleration transducer for a kind of turbine generator stator end vibration measuring.
Background technology
Because generator unit stator winding is the electrified body under strong-electromagnetic field, environmental factor all can produce strong interference as high temperature, high-intensity magnetic field, high pressure etc., the method of testing of traditional employing piezoelectric transducer is restricted, and there is certain potential safety hazard, undesired signal can be introduced simultaneously and actual value can accurately be do not measured.The optical fiber acceleration transducers that adopt carry out vibration-testing to turbo-generator end winding more at present, but the sensor installation method adopting is all non-dismountable formula, sensor can not be reused, and is arranged on unit under test and can not be removed, otherwise can destroy the insulation course of unit under test.This kind of method not only brought the huge wasting of resources, and because the non-dismountable property of sensor is brought certain potential safety hazard to unit operation.Therefore for the specific position requirement of turbine generator stator end, research and develop a kind of above-mentioned drawback that overcomes, guarantee that unit carries out the installation method that the optical fiber acceleration transducer of test data collection is new under safe and stable operation prerequisite extremely urgent.
Summary of the invention
The object of this invention is to provide a kind of peace method of optical fiber acceleration transducer for the vibration measuring of turbogenerator stator winding end portion and magnetic pole lead-in wire that is applicable to.The present invention realizes by following technical scheme:
1) optical fiber acceleration transducer adopts quick-drying gelatin pre-installation on insulating pad;
2) insulating pad is the glass plate of thickness 2.0mm, and insulating pad adopts a small amount of quick-drying gelatin to be arranged on unit under test;
3) the sticky wrapping of terylene that optical fiber acceleration transducer outside is 0.8mm with thickness;
4) to take to wash glass rope epoxy resin dipping be jointing compound in terylene sticky outside, colligation twice;
5) colligation needs to carry out above solidifying in 12 hours after complete;
6) complete after above-mentioned steps, optical fiber acceleration transducer is drawn by p-wire, be connected to dynamic signal data Acquisition Instrument, after unit operation, can carry out vibration signal data acquisition.
Technique effect
1, the invention solves turbo-generator end vibration measuring and with sensor, be difficult to the problem of installation and removal, due to the requirement of turbo-generator end specific position, installation must have enough intensity, ensure that unit can safely and steadily run, optical fiber degree of adding element sensor precision prescribed is high simultaneously, and fragile, the present invention, when guaranteeing unit safety stable operation, can not cause damage to sensor again.
2, the present invention can guarantee that unit under test and optical fiber acceleration transducer can be not damaged, insulating pad can effectively protect tested position, facilitates the installation and removal of sensor simultaneously, and terylene is sticky can be protected optical fiber acceleration transducer, sensor can be reused, and has saved cost.
3, the method applied in the present invention guarantees the true and accurate of test signal under particular surroundings, the insulating pad that 2.0mm is thick is 0.2～0.4 ‰ on the impact of data, in error allowed band, there is enough intensity simultaneously, guarantee the safe and stable operation of unit.
4, the present invention passes through repeatedly comparatively validate; not only protected the security of unit under test and sensor itself simultaneously; and guaranteed the true and reliable property that test signal gathers; solved the high risk that turbodynamo end winding vibration is measured; for the assembling of structural design and stator provides effective reference data, for unit operation provides assurance.
Accompanying drawing explanation
Fig. 1 test macro figure that is linked and packed
Embodiment
As shown in Figure 1, the installation method of optical fiber acceleration transducer for a kind of turbine generator stator end vibration measuring, the method comprises the steps:
The first step: first unit under test is carried out to correct position selection, be generally selected in the position that vibration is larger, and be easy to the position of installation of sensors, dedusting cleaning is carried out in unit under test surface, to facilitate the installation of sensor.
Second step: according to the suitable insulating pad of the status requirement cutting at tested position; insulating pad thickness is 2.0mm; adopting insulating pad is herein for sensor is protected; after finishing, experiment only insulating pad need be removed from unit under test; because optical fiber acceleration transducer is fragile; the method has not only been protected sensor, has also protected the insulation course of unit under test simultaneously, has improved the installation and removal efficiency of sensor.
The 3rd step: the insulating pad of having reduced and unit under test surface in contact are smeared to a small amount of quick-drying gelatin, prevent that insulating pad from producing slip on unit under test, when facilitating installation of sensors, can not destroy the insulation course of unit under test.
The 4th step: after step 3 finishes, sensor outside adopts terylene to glue and wraps up, the sticky thickness of terylene is 0.8mm, terylene is sticky will be cut into the shape that can just encase sensor size, terylene is sticky can be prevented from washing the direct colligation of glass rope and on sensor, cause sensor to be difficult to the generation of the situation of dismantling, offset simultaneously and washed the extra-stress of in glass rope epoxy resin dipping adhesive curing process, sensor being brought, guaranteed the measuring accuracy of sensor.
The 5th step: terylene is sticky have been wrapped up after sensor, in the sticky outside of terylene, adopt and wash glass rope epoxy resin dipping jointing compound colligation twice, colligation twice are herein determined through repetition test, colligation twice can guarantee the installation strength of sensor, can be due to the loosening safe and stable operation that affects unit of sensor in process of the test, also be easy to the dismounting of sensor, can sensor do not produced and be destroyed, sensor can be reused simultaneously.
The 6th step: after sensor is carried out to colligation finishing, need static curing more than 12 hours, because epoxy resin adhesive curing is slower, must guarantee that epoxide-resin glue has enough set times, the installation of guarantee sensor has enough installation strength like this.
After above-mentioned steps completes, optical fiber acceleration transducer is drawn by p-wire, be connected to dynamic signal data Acquisition Instrument, now installment work completes, and unit operation just can carry out vibration signal data acquisition.
Claims (1)
1. an installation method for optical fiber acceleration transducer for turbine generator stator end vibration measuring, is characterized in that: the method comprises the steps:
1) optical fiber acceleration transducer adopts quick-drying gelatin pre-installation on insulating pad;
2) insulating pad is the glass plate of thickness 2.0mm, and insulating pad adopts a small amount of quick-drying gelatin to be arranged on unit under test;
3) the sticky wrapping of terylene that optical fiber acceleration transducer outside is 0.8mm with thickness;
4) to take to wash glass rope epoxy resin dipping be jointing compound in terylene sticky outside, colligation twice;
5) colligation needs to carry out above solidifying in 12 hours after complete;
6) complete after above-mentioned steps, optical fiber acceleration transducer is drawn by p-wire, be connected to dynamic signal data Acquisition Instrument, after unit operation, can carry out vibration signal data acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418196.6A CN104154986A (en) | 2014-08-22 | 2014-08-22 | Installation method of optical fiber acceleration sensor for turbine generator stator end vibration measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418196.6A CN104154986A (en) | 2014-08-22 | 2014-08-22 | Installation method of optical fiber acceleration sensor for turbine generator stator end vibration measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154986A true CN104154986A (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410418196.6A Pending CN104154986A (en) | 2014-08-22 | 2014-08-22 | Installation method of optical fiber acceleration sensor for turbine generator stator end vibration measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154986A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768274A (en) * | 2016-12-16 | 2017-05-31 | 浙江中电智能科技有限公司 | A kind of Generator Stator Winding Ends vibration monitor system and monitoring method |
| CN110307891A (en) * | 2019-06-26 | 2019-10-08 | 西安近代化学研究所 | A kind of warship canon gun carriage vibration measurement sensor mounting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428601A (en) * | 2001-12-26 | 2003-07-09 | 广东省电力工业局试验研究所 | Turbogenerator stator winding end portion vibration on-line monitoring device and its application |
| JP2005351652A (en) * | 2004-06-08 | 2005-12-22 | Mems Core Co Ltd | Optical interference type vibration sensor and its manufacturing method |
| CN102997042A (en) * | 2011-09-14 | 2013-03-27 | 中国石油天然气集团公司 | Mounting method for optical fiber sensor of natural gas pipe leakage optical fiber monitoring system |
| CN203337300U (en) * | 2013-07-25 | 2013-12-11 | 国家电网公司 | Transformer winding longitudinal stress measuring device |
| US20140105533A1 (en) * | 2012-10-15 | 2014-04-17 | Halliburton Energy Services. Inc. | Method to Install Sensing Cables in Monitoring Wells |
-
2014
- 2014-08-22 CN CN201410418196.6A patent/CN104154986A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1428601A (en) * | 2001-12-26 | 2003-07-09 | 广东省电力工业局试验研究所 | Turbogenerator stator winding end portion vibration on-line monitoring device and its application |
| JP2005351652A (en) * | 2004-06-08 | 2005-12-22 | Mems Core Co Ltd | Optical interference type vibration sensor and its manufacturing method |
| CN102997042A (en) * | 2011-09-14 | 2013-03-27 | 中国石油天然气集团公司 | Mounting method for optical fiber sensor of natural gas pipe leakage optical fiber monitoring system |
| US20140105533A1 (en) * | 2012-10-15 | 2014-04-17 | Halliburton Energy Services. Inc. | Method to Install Sensing Cables in Monitoring Wells |
| CN203337300U (en) * | 2013-07-25 | 2013-12-11 | 国家电网公司 | Transformer winding longitudinal stress measuring device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768274A (en) * | 2016-12-16 | 2017-05-31 | 浙江中电智能科技有限公司 | A kind of Generator Stator Winding Ends vibration monitor system and monitoring method |
| CN106768274B (en) * | 2016-12-16 | 2021-11-30 | 浙江中电智能科技有限公司 | Generator stator winding end vibration monitoring system and monitoring method |
| CN110307891A (en) * | 2019-06-26 | 2019-10-08 | 西安近代化学研究所 | A kind of warship canon gun carriage vibration measurement sensor mounting structure |
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Application publication date: 20141119 |