CN205333221U - A distributed optical fiber temperature measurement system for dry -type reactor - Google Patents
A distributed optical fiber temperature measurement system for dry -type reactor Download PDFInfo
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- CN205333221U CN205333221U CN201520947246.XU CN201520947246U CN205333221U CN 205333221 U CN205333221 U CN 205333221U CN 201520947246 U CN201520947246 U CN 201520947246U CN 205333221 U CN205333221 U CN 205333221U
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Abstract
The utility model belongs to the technical field of the high voltage electric power equip ment monitoring, especially, relate to a distributed optical fiber temperature measurement system for dry -type reactor. This system includes and still includes heat sensitive optical fiber, transmission cable, fiber temperature measurer, monitoring host computer and audible -visual annunciator by dry -type reactor that wherein heat sensitive optical fiber sets up in dry -type reactor's air flue. The utility model provides a heat sensitive optical fiber that the utilization has good insulating properties arranges it in dry -type reactor's air flue as the sensor, the problem of monitoring reactor to a tactics is provided, when the temperature value is unusual, provide early warning and alarm signal, prevent that the trouble from further developing into the accident. Have simple structure, convenient operation's characteristics can show the security that improves work.
Description
Technical field
This utility model belongs to high-tension electricity monitoring of equipment technical field, particularly relates to a kind of temperature-measuring system of distributed fibers for dry reactor。
Background technology
Dry reactor compares oil-immersed electric reactor and has that loss is little, noise is low, intensity is high, easy for installation, safeguard that simple, reactance value is the significant advantage such as linear, therefore obtain and develop rapidly and extensive use。In recent years, the Northeast of China is along with the operation of a large amount of low pressure parallel connection dry reactor equipment, and Problems existing also constantly comes out, and successively there occurs a lot of 66kV parallel connection dry reactor fault, continuous scaling loss even occurs。Axially dispel the heat air flue local all along with serious superheating phenomenon by analyzing the reactor in discovery accident。Accident has had been found that serious creepage burning trace and breakdown channel in dissecting in reactor dispels the heat air flue。Main cause is that resin cracks, stock-price forecast cause hot-spot even shelf depreciation, finally develops into penetrability insulation fault。
At present, dry reactor is equipped with overcurrent protective device in transformer station, but overcurrent protection setting valve is bigger than normal, once its action such as break down, reactor scaling loss also causes fire incident。
Summary of the invention
In order to solve the problems referred to above, this utility model provides a kind of temperature-measuring system of distributed fibers for dry reactor。Purpose is to provide a kind of when temperature value exception, it is provided that early warning and alarm signal, it is prevented that fault is further developed into accident, has simple in construction, easy to operate, a kind of temp measuring system that the safety of work is high。
This utility model is achieved through the following technical solutions:
A kind of temperature-measuring system of distributed fibers for dry reactor, including dry reactor, also includes temperature sensing optical fiber, transmission cable, optic fiber thermometer, monitoring main frame and audible-visual annunciator, and wherein temperature sensing optical fiber is arranged in the air flue of dry reactor；Screen cabinet is provided with optic fiber thermometer, monitoring main frame and audible-visual annunciator, optic fiber thermometer is connected with transmission cable, after converting the optical signal of temperature sensing optical fiber to temperature signal, it is connected with monitoring main frame by connection, on monitoring main frame, and send temperature pre-warning and alarm signal to audible-visual annunciator according to preset value。
Described dry reactor is made up of some encapsulatings in parallel, is formed the air flue of reactor heat transmission between each encapsulating by stay；Temperature sensing optical fiber is arranged from top to bottom in the air flue of reactor, and adopts the mode of fiber optic loop to be attached in the middle and upper part of air flue。
Described temperature sensing optical fiber, then is passed by another upper airways through in another air flue in the lower end of an air flue, is arranged in successively in each air flue。
Described temperature sensing optical fiber adopts electrically insulating silicone rubber to be fixed on the top and bottom of each gas channel supporting bar。
Described fiber optic loop is that temperature sensing optical fiber coiling is formed, and is fixed with electrically insulating silicone rubber, a circulus of formation。
Advantage of the present utility model and produced by provide the benefit that:
This utility model provides a kind of temperature-measuring system of distributed fibers for dry reactor, utilize the temperature sensing optical fiber with good insulating performance as sensor, it is arranged in the air flue of dry reactor, the problem of monitoring reactor, and a kind of strategy is provided, when temperature value exception, it is provided that early warning and alarm signal, it is prevented that fault is further developed into accident。There is simple in construction, easy to operate, it is possible to significantly improve the safety of work。
Below in conjunction with the drawings and specific embodiments, this utility model is described in further details。
Accompanying drawing explanation
Fig. 1 is that optical fiber is at reactor interior arrangement structure schematic diagram；
Fig. 2 is that close-up schematic view arranged by optical fiber inside reactor；
Fig. 3 is dry reactor temp measuring system structural representation；
Fig. 4 is dry reactor temperature pre-warning and alarm flow figure。
In figure: temperature sensing optical fiber 1, transmission cable 2, optic fiber thermometer 3, monitor main frame 4, audible-visual annunciator 5, stay 6, air flue 7, fiber optic loop 8。
Detailed description of the invention
This utility model is a kind of temperature-measuring system of distributed fibers for dry reactor, utilizes the temperature sensing optical fiber with good insulating performance as sensor, is arranged in the air flue of dry reactor。As it is shown in figure 1, include temperature sensing optical fiber 1, transmission cable 2, optic fiber thermometer 3, monitoring main frame 4 and audible-visual annunciator 5。
As depicted in figs. 1 and 2, dry reactor is made up of some encapsulatings in parallel, is formed the air flue 7 of reactor heat transmission by stay between each encapsulating to be easy to dispel the heat, temperature sensing optical fiber 1 is arranged from top to bottom in the air flue of reactor, and it is being susceptible to location of fault, namely the middle and upper part of air flue adopts the mode of fiber optic loop 8, increases certainty of measurement, carries out emphasis monitoring。Temperature sensing optical fiber is from top to bottom arranged in this air flue 7, by this air flue 7 lower end through in another air flue, then is passed by another upper airways, is arranged in successively in each air flue。Described temperature sensing optical fiber 1 adopts electrically insulating silicone rubber to be fixed on the top and bottom of each gas channel supporting bar 6。Described fiber optic loop 8 is formed for temperature sensing optical fiber coiling, and is fixed with electrically insulating silicone rubber, a circulus of formation。
When utilizing this utility model to carry out thermometric, adopt distributed temperature sensing optical fiber as temperature sensing unit, by measuring the temperature in reactor air flue, the variations in temperature that monitoring reactor internal fault causes。
During concrete operations, as in figure 2 it is shown, temperature sensing optical fiber 1 is arranged in after passing certain distance in the air flue 7 of dry reactor, it is converted to transmission cable 2 by fiber optic closure after passing reactor, is connected in the screen cabinet that near reactor, relay protection is indoor。Screen cabinet is provided with optic fiber thermometer 3, monitoring main frame 4 and audible-visual annunciator 5, optic fiber thermometer 3 is connected with transmission cable 2, after converting the optical signal of temperature sensing optical fiber 1 to temperature signal, it is connected with monitoring main frame 4 by connection, on monitoring main frame, and send temperature pre-warning and alarm signal to audible-visual annunciator 5 according to preset value。
As it is shown on figure 3, described sends temperature pre-warning and alarm signal to audible-visual annunciator 5 according to preset value, during concrete operations according to the following steps:
(1) when reactor temperature rise rapid increase, and the temperature rise of any of sensor more than 90K time, start early warning, and point out station in personnel's reactor whether be in overload。If reactor is in overload, then reactor normal operation, if reactor is not in overload, then reactor is checked by the interior personnel that need to stand。
(2) when reactor temperature rise is between 90K～115K, and the persistent period is little more than 2 constantly, starts to report to the police, and points out whether personnel's reactor in station is still within overload。If reactor is not in overload, then reactor is checked by the interior personnel that need to stand。
(3) after reactor overload terminates, and when the temperature rise of all the sensors drops to below 90K, early warning releases。
(4) when reactor temperature rise rapid increase, and the temperature rise of any of sensor more than 115K time, start report to the police, and point out station in personnel reactor is checked。
(5) when reactor temperature rise climbing speed is more than 2K/5min, start early warning, and point out whether personnel's reactor in station is in initial power transmission stage or overload stage。If reactor is in initial power transmission stage or overload stage, then reactor normal operation, if reactor is not in initial power transmission stage or overload stage, then reactor is checked by the interior personnel that need to stand。
(6) when reactor temperature rise climbing speed drops back to below 2K/5min, early warning releases。
(7) reactor through running for many years, insulating properties also will progressively deteriorate, it is possible to by the reactor same time year by year is compared with the temperature rise situation of change of environmental condition, it is judged that whether reactor is abnormal。
Claims (5)
1. the temperature-measuring system of distributed fibers for dry reactor, including dry reactor, it is characterized in that, also including temperature sensing optical fiber (1), transmission cable (2), optic fiber thermometer (3), monitoring main frame (4) and audible-visual annunciator (5), wherein temperature sensing optical fiber (1) is arranged in the air flue of dry reactor；Screen cabinet is provided with optic fiber thermometer (3), monitoring main frame (4) and audible-visual annunciator (5), optic fiber thermometer (3) is connected with transmission cable (2), after converting the optical signal of temperature sensing optical fiber (1) to temperature signal, it is connected with monitoring main frame (4) by connection, on monitoring main frame, and send temperature pre-warning and alarm signal to audible-visual annunciator (5) according to preset value。
2. a kind of temperature-measuring system of distributed fibers for dry reactor according to claim 1, it is characterised in that described dry reactor is made up of some encapsulatings in parallel, is formed the air flue (7) of reactor heat transmission between each encapsulating by stay；Temperature sensing optical fiber (1) is arranged from top to bottom in the air flue of reactor, and adopts the mode of fiber optic loop (8) to be attached in the middle and upper part of air flue。
3. a kind of temperature-measuring system of distributed fibers for dry reactor according to claim 1, it is characterized in that, described temperature sensing optical fiber (1), then is passed by another upper airways through in another air flue in the lower end of an air flue (7), is arranged in successively in each air flue。
4. a kind of temperature-measuring system of distributed fibers for dry reactor according to claim 1, it is characterised in that described temperature sensing optical fiber (1) adopts electrically insulating silicone rubber to be fixed on the top and bottom of each gas channel supporting bar (6)。
5. a kind of temperature-measuring system of distributed fibers for dry reactor according to claim 2, it is characterised in that described fiber optic loop (8) is formed for temperature sensing optical fiber (1) coiling, and is fixed with electrically insulating silicone rubber, a circulus of formation。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947246.XU CN205333221U (en) | 2015-11-25 | 2015-11-25 | A distributed optical fiber temperature measurement system for dry -type reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947246.XU CN205333221U (en) | 2015-11-25 | 2015-11-25 | A distributed optical fiber temperature measurement system for dry -type reactor |
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| CN205333221U true CN205333221U (en) | 2016-06-22 |
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| CN201520947246.XU Active CN205333221U (en) | 2015-11-25 | 2015-11-25 | A distributed optical fiber temperature measurement system for dry -type reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107978438A (en) * | 2017-11-21 | 2018-05-01 | 广东电网有限责任公司电力科学研究院 | A kind of dry-type iron-core reactor temperature distribution measuring method and device |
-
2015
- 2015-11-25 CN CN201520947246.XU patent/CN205333221U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107978438A (en) * | 2017-11-21 | 2018-05-01 | 广东电网有限责任公司电力科学研究院 | A kind of dry-type iron-core reactor temperature distribution measuring method and device |
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