CN109540330A - Reactor on-line monitoring method based on grating thermometric - Google Patents
Reactor on-line monitoring method based on grating thermometric Download PDFInfo
- Publication number
- CN109540330A CN109540330A CN201811292638.1A CN201811292638A CN109540330A CN 109540330 A CN109540330 A CN 109540330A CN 201811292638 A CN201811292638 A CN 201811292638A CN 109540330 A CN109540330 A CN 109540330A
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- reactor
- temperature
- data
- grating
- line monitoring
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 239000002510 pyrogen Substances 0.000 description 2
- 241000123589 Dipsacus Species 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention relates to a kind of reactor on-line monitoring methods based on grating thermometric.Its main feature is that: fiber grating temperature sensor is uniformly installed on first inside and outside reactor encapsulating coating on wall surface, turn-to-turn stay gap and through-flow circuit, acquire the temperature data of reactor, obtained optical signal demodulation is switched to by digital signal by data acquisition device again, the digital signal is packaged by wireless transmitter, then it is wirelessly transferred to data processing equipment, when the temperature of data processing equipment discovery reactor is more than threshold value alarm.The beneficial effect of the method for the present invention is, accurate, timely, comprehensive in the case where not influencing reactor normal operation can monitor reactor temperature data on-line by using the method for the present invention, issue and alert in reactor adstante febre.
Description
Technical field
The present invention relates to a kind of reactor on-line monitoring methods based on grating thermometric.
Background technique
Reactor can filter out harmonic wave in electric system, smooth DC current, can effectively prevent by DC line or straight
The impact of steep wave caused by the equipment of flow field enters valve hall, to avoid damage of the overvoltage to converter valve, while can filter out electricity
Ripple in stream avoids the teasel root of DC current, the limitation current changing rate caused by quick voltage variation.Reactor is being transported
Fever in row can directly threaten the safe operation of electric power primary equipment, and fever can seriously directly result in fire, cause serious property
Loss.By monitoring the temperature data of reactor on-line, can effectively in advance the breakdown between adjacent turns of determining reactor, shelf depreciation,
Encapsulate the portion of electrical current pyrogenicity type equipment deficiencies such as coating damage, poor contact.
Existing reactor live monitoring device mostly uses the method for infrared imaging to realize, is according to the regulation thermometric period
One week or one month primary, and the period is long, while infrared imaging two-dimentional can only measure reactor encapsulating coating outer surface
Temperature conditions can not measure reactor inner wall surface, turn-to-turn stay gap and through-flow circuit.
Summary of the invention
The object of the present invention is to provide a kind of reactor on-line monitoring methods based on grating thermometric, can be in reactance general ability
Portion's temperature rise issues accurately and reliably alarm signal when reaching alarm threshold.
A kind of reactor on-line monitoring method based on grating thermometric, its special feature is that: first by fiber grating temperature
Degree sensor is uniformly installed on inside and outside reactor encapsulating coating on wall surface, turn-to-turn stay gap and through-flow circuit, acquires reactance
The temperature data of device, then obtained optical signal demodulation is switched to by digital signal by data acquisition device, it is filled by wireless receiving and dispatching
It sets and is packaged the digital signal, be then wirelessly transferred to data processing equipment, when data processing equipment finds reactance
The temperature of device is more than threshold value alarm.
Wherein data processing equipment is also connect with Real time displaying device, to show the real time temperature and alarm signal of reactor
Breath.
Wherein data processing equipment acquires the temperature data of reactor in real time, by the history of the temperature data and the reactor
Temperature data compares, and by the temperature data of the temperature data of the reactor and other reactors collected simultaneously into
Row comparison, according to the historical temperature data of the reactor while the temperature data and environment temperature of collected other reactors
Data threshold value.
Wherein threshold value specifically refers to reactor temperature 70 C or reactor temperature is higher than 30 DEG C of environment temperature.
The beneficial effect of the method for the present invention is, can be worked normally not influencing reactor by using the method for the present invention
In the case of it is accurate, in time, comprehensive on-line monitoring reactor temperature data, issue and alert in reactor adstante febre.
Detailed description of the invention
The system structure diagram of the method to realize the present invention of attached drawing 1；
Attached drawing 2 is monitoring flow diagram of the invention.
Specific embodiment
Below with reference to attached drawing of the invention, complete detailed elaboration is carried out to a specific embodiment of the invention.
The system of method, i.e., a kind of reactor based on grating temperature-measurement principle are supervised online to realize the present invention as shown in Figure 1
Examining system, device include distributed grating sensor 1, data acquisition device 2, wireless transceiver system 3, data processing system 4,
Line display device 5.
The fiber-optic grating sensor is uniformly installed on wall surface, turn-to-turn stay gap inside and outside each reactor encapsulating coating
With through-flow circuit, the temperature data in the through-flow circuit of each reactor is acquired.
The signal that the data acquisition device acquires distributed grating sensor demodulates output digit signals and will be digital
Signal is packaged.
Data are radioed to data processing equipment by the wireless transmitter, and power supply mode is external too using battery
The form of positive energy plate charging.
The data processing equipment vertical analysis historical data, across comparison three-phase data, it is through-flow according to the equipment measured
Loop temperature value chooses alarm threshold.The selection of alarm threshold is as follows:
Relative temperature difference refer to the temperature difference between the identical two corresponding measurement points of equipment basic condition with wherein compared with hot spot temperature
The percentage of the ratio risen.The mathematic(al) representation of relative temperature difference δ t are as follows:
δ t=((T1-T2)/T1) 100%
Wherein: T1 refers to the temperature rise value of the higher measuring point of temperature, and T2 criticizes the temperature rise value that normal phase equipment corresponds to measuring point, normal
Under load, δ t > 80% may be significant deficiency, δ t > 95% illustrates the contact of equipment with the presence of hidden danger by the indication of δ t > 30% item
Situation is very bad, may cause thing under the impact of transient high-current at any time.Meanwhile general tie point is more than 70 DEG C, or is higher than
30 DEG C of environment temperature, that is, think with the presence of hidden danger.
The Real time displaying device can be with the whole real time temperature of each reactor of Three-dimensional Display, while being capable of classification display
Alarm.
The beneficial effects obtained by the present invention are as follows being: Rational choice alarm threshold monitors the temperature data of reactor on-line, can
It is so effective that determine the portion of electrical current pyrogenicity types such as breakdown between adjacent turns, shelf depreciation, encapsulating coating damage, the poor contact of reactor in advance
Equipment deficiency.
Realize the method for the present invention is a kind of reactor on-line monitoring system based on grating temperature-measurement principle, including distribution
Grating sensor, data acquisition device, wireless transceiver system, data processing system, Real time displaying device.
The distribution grating sensor uses high sensitivity, the optical fiber light that dynamic response is good, anti-electromagnetic interference capability is strong
Grid temperature sensor is uniformly installed on wall surface, turn-to-turn stay gap and through-flow circuit inside and outside each reactor encapsulating coating, adopts
Collect the temperature data in the through-flow circuit of each reactor.The data acquisition device by the optical signal demodulation of distributed grating sensor,
Switch to digital signal.Data are radioed to data processing equipment by the wireless transmitter, and this system is dry using anti-electromagnetism
The radio station disturbed.
The data processing equipment can combining environmental temperature, vertical analysis historical data, across comparison three-phase data, root
According to the through-flow loop temperature value of the equipment measured, the pertinent regulations of GB763 are compareed, to choose alarm threshold.The Real time displaying dress
Setting can be with the whole real time temperature of each reactor of Three-dimensional Display, while can be classified setting alarm.
Claims (4)
1. a kind of reactor on-line monitoring method based on grating thermometric, it is characterised in that: first by fiber grating temperature sensor
Device is uniformly installed on inside and outside reactor encapsulating coating on wall surface, turn-to-turn stay gap and through-flow circuit, acquires the temperature of reactor
Degree evidence, then obtained optical signal demodulation is switched to by digital signal by data acquisition device, it should by wireless transmitter
Digital signal is packaged, and is then wirelessly transferred to data processing equipment, when the temperature of data processing equipment discovery reactor
Degree is more than threshold value alarm.
2. as described in claim 1 based on the reactor on-line monitoring method of grating thermometric, it is characterised in that: wherein at data
Reason device is also connect with Real time displaying device, to show the real time temperature and warning message of reactor.
3. as described in claim 1 based on the reactor on-line monitoring method of grating thermometric, it is characterised in that: wherein at data
Reason device acquires the temperature data of reactor in real time, and the historical temperature data of the temperature data and the reactor is compared,
And the temperature data of the reactor and the temperature data of other reactors collected simultaneously are compared, according to the reactance
The temperature data and ambient temperature data threshold value of the historical temperature data of device, simultaneously collected other reactors.
4. as claimed in claim 3 based on the reactor on-line monitoring method of grating thermometric, it is characterised in that: wherein threshold value has
Body refers to that reactor temperature 70 C or reactor temperature are higher than 30 DEG C of environment temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292638.1A CN109540330A (en) | 2018-11-01 | 2018-11-01 | Reactor on-line monitoring method based on grating thermometric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292638.1A CN109540330A (en) | 2018-11-01 | 2018-11-01 | Reactor on-line monitoring method based on grating thermometric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109540330A true CN109540330A (en) | 2019-03-29 |
Family
ID=65845859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292638.1A Pending CN109540330A (en) | 2018-11-01 | 2018-11-01 | Reactor on-line monitoring method based on grating thermometric |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824841A (en) * | 2019-11-19 | 2021-05-21 | 许继集团有限公司 | Valve tower temperature monitoring system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903411U (en) * | 2010-12-07 | 2011-07-20 | 浙江省电力公司紧水滩水力发电厂 | Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor |
| CN203643050U (en) * | 2013-12-03 | 2014-06-11 | 中国南方电网有限责任公司超高压输电公司广州局 | Ultra-high-voltage convertor station dry reactor temperature monitoring device based on fiber temperature measurement |
| CN105371982A (en) * | 2015-11-25 | 2016-03-02 | 国家电网公司 | Distributed optical fiber temperature measurement system and method used for dry type reactor |
| CN205909944U (en) * | 2016-06-02 | 2017-01-25 | 国家电网公司 | Hollow parallel reactor distributed optical fiber temperature measurement device of portable dry -type |
| CN206208413U (en) * | 2016-06-02 | 2017-05-31 | 国家电网公司 | A kind of portable dry-type air-core reactor temperature rise monitoring device |
| CN108593138A (en) * | 2018-06-08 | 2018-09-28 | 杭州柯林电气股份有限公司 | The temp measuring system and temp measuring method of magnetic control type paralleling reactor inner-core magnet valve |
-
2018
- 2018-11-01 CN CN201811292638.1A patent/CN109540330A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903411U (en) * | 2010-12-07 | 2011-07-20 | 浙江省电力公司紧水滩水力发电厂 | Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor |
| CN203643050U (en) * | 2013-12-03 | 2014-06-11 | 中国南方电网有限责任公司超高压输电公司广州局 | Ultra-high-voltage convertor station dry reactor temperature monitoring device based on fiber temperature measurement |
| CN105371982A (en) * | 2015-11-25 | 2016-03-02 | 国家电网公司 | Distributed optical fiber temperature measurement system and method used for dry type reactor |
| CN205909944U (en) * | 2016-06-02 | 2017-01-25 | 国家电网公司 | Hollow parallel reactor distributed optical fiber temperature measurement device of portable dry -type |
| CN206208413U (en) * | 2016-06-02 | 2017-05-31 | 国家电网公司 | A kind of portable dry-type air-core reactor temperature rise monitoring device |
| CN108593138A (en) * | 2018-06-08 | 2018-09-28 | 杭州柯林电气股份有限公司 | The temp measuring system and temp measuring method of magnetic control type paralleling reactor inner-core magnet valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112824841A (en) * | 2019-11-19 | 2021-05-21 | 许继集团有限公司 | Valve tower temperature monitoring system and method |
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Application publication date: 20190329 |