CN110031126A - Temperature monitoring system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement - Google Patents
Temperature monitoring system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement Download PDFInfo
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- CN110031126A CN110031126A CN201910274575.5A CN201910274575A CN110031126A CN 110031126 A CN110031126 A CN 110031126A CN 201910274575 A CN201910274575 A CN 201910274575A CN 110031126 A CN110031126 A CN 110031126A
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- 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
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Abstract
Temperature monitoring system in the electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement that the invention discloses a kind of, including the distributed optical fiber temperature measurement sensor being arranged in the prefabricated cabin of electrochemical energy storage station, the distributed optical fiber temperature measurement host being placed on outside container and computer.The fibre optical sensor is connected by sensing optic cable with distributed optical fiber temperature measurement host and computer, and computer can be connected with driver element, the subsequent early warning system that links and other fire protections.Distributed optical fiber temperature measurement technology used in the present invention have the advantages that electromagnetism interference, temperature measurement accuracy it is high, can be with space orientation, it is more suitable for the high Practical Project environment of energy storage container high-energy density, fire risk, can effectively reduce in energy storage container and occur the security risk of dangerous situation because of mid-winter.
Description
Technical field
The present invention relates to the technical fields in lithium ion battery electrochemical energy storage temperature monitoring system, and in particular to Yi Zhongji
In temperature monitoring system in the electrochemical energy storage station prefabricated cabin of distributed optical fiber temperature measurement.
Background technique
With the exploitation of the emerging clean energy resource such as wind energy, water energy, nuclear energy, the energy storage technology to match therewith has also been obtained greatly
Power development, energy density is big, output power is high, long service life, environment friend because having for lithium ion battery container energy storage station
The advantages that good, applied widely and be widely used in power energy storage field.Though lithium ion battery energy storage container has above-mentioned excellent
Point, if but its internal lithium ion battery be in hot abuse condition, the heat for being easy initiation inside battery gathers extremely, surface temperature
Degree increases, and then triggers lithium ion battery thermal runaway, and the dangerous situations such as explosion, on fire occur.In view of lithium ion battery energy storage collection
Vanning is internal, and lithium ion battery is closely arranged, the feature that energy density is larger is easily drawn if thermal runaway phenomenon occur in Individual cells
Hair closes on battery and is heated, and then the dangerous situation of thermal runaway propagation occurs, causes entire energy storage container that fire occurs, causes huge
Huge economic loss.Therefore, in safe and reliable electrochemical energy storage station prefabricated cabin Temperature monitoring technology for electrochemical energy storage station
Safe handling, expand application range be of great significance.
Currently, specifically for the Temperature monitoring technology research at electrochemical energy storage station and few, the electrification to come into operation at present
It learns the monitoring of energy storage station internal temperature and mostly uses traditional thermocouple temperature measurement or infrared temperature-test technology.Thermocouple temperature measurement precision compared with
Height, substantially reliably, but single thermocouple temperature measurement area is too small, must lay point by point when applied in larger space, and still
It is not able to satisfy the requirement of large space multi-point temperature measurement.Infrared measurement of temperature also has the lesser problem of thermometric area, and temperature measurement accuracy is lower,
Practical Project demand cannot be met well.
And the distributed optical fiber temperature measurement technology that the present invention uses is different from the lesser limitation of traditional thermometric mode thermometric area
Property, there is the thermometric length up to tens of kms, while can guarantee the temperature measurement accuracy of meet demand, and material itself safely may be used
It leans on, is more suitable for the monitoring temperature at lithium ion battery electrochemical energy storage station.
Summary of the invention
It is an object of the present invention to overcome the defect and deficiency of temperature collection control technology in existing energy storage container prefabricated cabin,
Temperature monitoring system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement is provided, monitors energy storage packaging in real time
The surface temperature of energy storage lithium ion battery inside case, finds the mid-winter situation of Individual cells in energy storage container in time, from
And can take measures to cope with early stage dangerous situation occurs, prevent the lithium ion battery thermal runaway to form internal container
Corresponding economic loss is effectively reduced in propagation phenomenon.
To solve the above-mentioned problems and above-mentioned purpose is realized, the technical solution of the present invention is as follows: a kind of be based on distribution type fiber-optic
Temperature monitoring system in the container energy storage station prefabricated cabin of thermometric.Including the distribution being arranged in container energy storage station prefabricated cabin
Optical fiber temperature measuring sensor, the distributed optical fiber temperature measurement host being placed on outside container and computer.Distributed optical fiber temperature measurement passes
Sensor mainly includes more temperature-measuring optical fibers, optic fibre fixing devices.Distributed optical fiber temperature measurement host mainly includes laser generator, wave
Division multiplexer, detector, amplifying circuit, data collector etc..Computer uses common computer, using Windows system
System.
Wherein, distributed optical fiber temperature measurement sensor main body is that a root long is constituted up to thousands of meters of optical fiber, and specific length can be with
Determine that whole optical fiber surface every bit all has the function of thermometric, while inside of optical fibre can transmit according to practical application request
Optical signal, therefore temperature-measuring optical fiber and signal transmission fiber use same root optical fiber.Temperature-measuring optical fiber passes through optic fibre fixing device
It is attached into measured target surface.
Further, the temperature-measuring range of distributed optical fiber temperature measurement sensor is -40~125 DEG C, 0.1 DEG C of temperature measurement accuracy,
The middle thermometric upper limit can achieve 200 DEG C in short-term.
Further, the space temperature measurement accuracy of distributed optical fiber temperature measurement sensor is 0.6m, and every temperature-measuring optical fiber is according to length
It spends each rice and is divided into a thermometric block, the real-time of each thermometric block can be read in Computer Temperature Measuring System software
Temperature.
Further, the material of main part of temperature-measuring optical fiber is silica, therefore can be resistant to higher temperature, it is ensured that is occurred
Temperature anomaly still works normally after increasing.
Wherein, distributed optical fiber temperature measurement host mainly include laser generator, wavelength division multiplexer, detector, amplifying circuit,
Data collector etc., cabinet size are 88.9 × 440 × 450mm, and weight about 10kg, outer surface is the attached paint material of stainless steel.
Further, the normal operation circumstances temperature of distributed optical fiber temperature measurement host is -10~50 DEG C, it is therefore desirable to meter
Calculation machine is arranged in together in the computer room outside energy storage container.Building environment is stablized by air-conditioning in ambient temperature and moisture state.
Wherein, computer installation temperature-measuring system of distributed fibers monitors temperature Real-Time Display Software, can obtain in front of a computer
To the real-time response temperature value of temperature-measuring optical fiber difference thermometric block.
Further, when temperature-measuring system of distributed fibers works normally, ramp case without exception, monitoring temperature software is shown
Normally.After there is mid-winter, monitoring temperature software displays temperature abnormal conditions and the specific positioning address of mid-winter point.Confirmation
In energy storage container after mid-winter necessary being, mid-winter value, the fire protections such as the subsequent early warning of linkage, fire extinguishing are shown.
The present invention has the advantages that 1, distributed optical fiber temperature measurement technology temperature measurement accuracy is high, response is fast, the anti-electromagnetism of cable for measuring temperature
Interference, resistance to corrosion are strong.2, temperature-measuring optical fiber flexible arrangement can be arranged freely in container according to actual needs.It 3, can be empty
Between position, the spatial position of timely learning mid-winter point greatly facilitates subsequent fire-fighting link measure.4, distributed light
Thermometry thermometric area is big, can satisfy the engineering demand in larger thermometric region.
Detailed description of the invention
Fig. 1 is temperature monitoring system distribution light in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement
Fine temp measuring system composition figure；
Fig. 2 is that temperature monitoring system container is pre- in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement
Cabin distributed fiber optic temperature monitoring system fire-fighting control logic figure processed；
Fig. 3 is lithium ion battery energy storage container illustraton of model；
Fig. 4 is distributed temperature measuring fiber arrangement figure in energy storage container prefabricated cabin；
In figure: 1 is energy storage lithium ion battery distribution control box, and 2 be energy storage lithium ion battery cluster, and 3 be energy storage container cabin
Door, 4 be the prefabricated cabin door of energy storage container, and 5 be temperature-measuring optical fiber, and 6 be energy storage container bulkhead, and 7 be the air draft of container prefabricated cabin
Mouthful.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Temperature monitoring technology specifically includes that distributed optical fiber temperature measurement sensor in the prefabricated cabin of this electrochemical energy storage station, distribution
Formula optical fiber temperature measurement host and computer.
Distributed optical fiber temperature measurement sensor mainly includes more temperature-measuring optical fibers, optic fibre fixing devices.Distributed optical fiber temperature measurement
Host mainly includes laser generator, wavelength division multiplexer, detector, amplifying circuit, data collector etc..Computer is using common
Computer, using Windows system.
Distributed optical fiber temperature measurement sensor main body is that a root long is constituted up to thousands of meters of optical fiber, and specific length can be according to reality
Border application demand determines that whole optical fiber surface every bit all has the function of thermometric, while inside of optical fibre can transmit optical signal,
Therefore temperature-measuring optical fiber and signal transmission fiber use same root optical fiber.Temperature-measuring optical fiber passes through optic fibre fixing device and tested mesh
Mark surface is attached onto.
The temperature-measuring range of distributed optical fiber temperature measurement sensor is -40~125 DEG C, 0.1 DEG C of temperature measurement accuracy, the wherein thermometric upper limit
It can achieve 200 DEG C in short-term.
The space temperature measurement accuracy of distributed optical fiber temperature measurement sensor is 0.6m, and every temperature-measuring optical fiber is drawn according to each rice of length
It is divided into a thermometric block, the real time temperature of each thermometric block can be read in Computer Temperature Measuring System software.
The material of main part of temperature-measuring optical fiber is silica, therefore can be resistant to higher temperature, it is ensured that temperature anomaly occurs
It is still worked normally after raising.
Distributed optical fiber temperature measurement host mainly includes laser generator, wavelength division multiplexer, detector, amplifying circuit, data
Collector etc., cabinet size are 88.9 × 440 × 450mm, and weight about 10kg, outer surface is the attached paint material of stainless steel.
The normal operation circumstances temperature of distributed optical fiber temperature measurement host is -10~50 DEG C, it is therefore desirable to together with computer
It is arranged in the computer room outside energy storage container.Building environment is stablized by air-conditioning in ambient temperature and moisture state.
Computer installs temperature-measuring system of distributed fibers and monitors temperature Real-Time Display Software, can obtain thermometric in front of a computer
The real-time response temperature value of optical fiber difference temperature measuring area block.
When temperature-measuring system of distributed fibers works normally, ramp case without exception, monitoring temperature software is shown normally.Occur
After mid-winter, monitoring temperature software displays temperature abnormal conditions and the specific positioning address of mid-winter point.Confirm energy storage packaging
In case after mid-winter necessary being, mid-winter value, the fire protections such as the subsequent early warning of linkage, fire extinguishing are shown.
Distributed optical fiber temperature measurement sensor is mounted in the prefabricated cabin of electrochemical energy storage station, and sensor fibre can be arranged freely
Flexible cord, for the thermometric area for increasing single battery packet, using the method for curved arrangement, specific method for arranging is as shown in Figure 4.Energy storage
Lithium ion battery is stacked in vertical direction in energy storage container and is placed, and is rendered as the energy storage lithium ion battery cluster 2 of regular arrangement,
Therefore temperature-measuring optical fiber 5 arranges one layer between every two energy-storage battery packet, using each cell packet module as monitoring temperature independence
Unit.Energy storage container is divided into two parts space inside and outside prefabricated cabin by the prefabricated cabin door 4 of energy storage container, and staff's is daily
Working region focuses primarily upon outside prefabricated cabin, reduces influence of the external condition to energy storage lithium ion battery in prefabricated cabin.Energy storage
Lithium ion battery distribution control box 1 is arranged in outside prefabricated cabin, adherent placement, for the storage to energy storage lithium ion battery in prefabricated cabin
Energy situation is monitored control.To be controlled convenient for the air-flow in energy storage container prefabricated cabin with temperature, in container prefabricated cabin
Container prefabricated cabin exhaust outlet 7 is set at the bulkhead of the prefabricated hatch door side of face, it can also be used to the ventilation smoke exhaust of emergency.Figure
4 show independent one layer of deployment scenarios.Including energy storage lithium ion battery distribution control box 1, energy storage lithium ion battery cluster 2,
Energy storage container hatch door 3, the prefabricated cabin door 4 of energy storage container, temperature-measuring optical fiber 5, energy storage container bulkhead 6, container prefabricated cabin
Exhaust outlet 7.Research shows that the thermal runaway temperature of lithium ion battery is about 60~130 DEG C, which is in the normal of temperature-measuring optical fiber
Within temperature-measuring range, available preferable response.Distributed optical fiber temperature measurement is contact temperature-measuring technology, therefore uses fixed dress
It sets and is bound together temperature-measuring optical fiber and battery pack, guarantee the close attaching of surface both.
In the prefabricated cabin of electrochemical energy storage station after the completion of distributed temperature measuring fiber arrangement, according to actual fiber deployment scenarios,
Each each meter of temperature-measuring optical fiber of thermometric section is numbered in distributed fiber optic temperature monitoring software, corresponding actual measurement
Container character and container in energy-storage battery packet number, thus the space orientation of clear measured temperature value.
Distributed optical fiber temperature measurement host and computer are placed on the fire-fighting early warning control computer room further from energy storage container
Interior, wherein distributed optical fiber temperature measurement host receives the real-time optical signal of each temperature-measuring optical fiber, after carrying out demodulation analysis to it, will count
According to computer is transferred to, the real time temperature measurement data in each thermometric section is obtained in terminal.Distribution type fiber-optic is surveyed
Warm host and computer are required to the working environment of ambient temperature and moisture, therefore need to install corresponding sky in fire-fighting early warning control computer room
Adjust equipment.
Present embodiment does not limit its protection scope, the technology of this field only to exemplary illustration of the invention
Some improvements and modifications that personnel are made without departing from the principle of the present invention should be regarded as protection scope of the present invention.
Claims (5)
1. temperature monitoring system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement, it is characterised in that: packet
The distributed light for including the distributed optical fiber temperature measurement sensor being arranged in the prefabricated cabin of electrochemical energy storage station, being placed on outside container
Fine thermometric host and computer, in which:
The temperature-measuring system of distributed fibers is mainly made of distributed optical fiber temperature measurement sensor and distributed optical fiber temperature measurement host,
Fiber-optic grating sensor issues the signal detected, transmits signals to optical fiber temperature measurement host by transmission fiber, host is to this
Signal is demodulated to obtain corresponding sensing data；When temperature-measuring optical fiber experience target temperature variation after, its own for
The scattering power of laser changes, and fiber grating demodulation device analyzes the variation both available corresponding temperature of fibre scattering light
Change numerical value and spatial position, to realize thermometric and sterically defined purpose；
The computer is used to receive the transmission signal of distributed optical fiber temperature measurement host, can each temperature of real-time monitoring temperature sensing optical fiber point
The measurement temperature in area, and provide and timely respond to when there is mid-winter situation, remind relevant staff to take subsequent reply
Measure.
2. monitoring temperature system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement as described in claim 1
System, it is characterised in that: a distributed optical fiber temperature measurement host can control more temperature-measuring optical fibers, distributed optical fiber temperature measurement host tool
There is sending laser light source, analyze optical fiber optical signal, and transmits the function of signal, a distributed optical fiber temperature measurement host to computer
It can connect 1~10 temperature-measuring optical fiber, every optical fiber longest 10km, thermometric length maximum value reaches 100km, one to two distribution
Formula optical fiber temperature measurement host is sufficient for the requirement of lithium ion battery container energy storage station bulk temperature monitoring.
3. monitoring temperature system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement as described in claim 1
System, it is characterised in that: real time monitoring, multi-point temperature measurement are different from traditional lesser disadvantage of thermometry thermometric area, distributed light
The temperature element of fine thermometry is several temperature sensing optical fibers for being up to thousands of meters, each point on optical fiber is temperature element,
The mid-winter situation that contact surface can be monitored, greatly extends thermometric area.
4. monitoring temperature system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement as described in claim 1
System, it is characterised in that: mid-winter space of points positioning can be carried out, each rice of temperature sensing optical fiber is divided into a thermometric block, led to
The space block locations to the phase analysis for scattering light in optical fiber, where available mid-winter point are crossed, are up to realize
Mid-winter space of points positioning function in thousands of meters of thermometric regions, positioning accuracy can achieve 1m.
5. monitoring temperature system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement as described in claim 1
System, it is characterised in that: the material of main part of temperature-measuring optical fiber is silica, high temperature resistant, anticorrosive, electromagnetism interference and non-conductive；
The characteristic of fiber optic materials itself ensure that the reliability in the temperature monitoring system use, even if occur temperature anomaly increase or even
Fire condition can also maintain system worked well, take fire protection to provide help to be subsequent.
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Cited By (8)
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| CN111082166A (en) * | 2019-11-20 | 2020-04-28 | 国网江苏省电力有限公司电力科学研究院 | Electrochemical energy storage safety early warning system and method |
| CN112254815A (en) * | 2020-08-28 | 2021-01-22 | 华电电力科学研究院有限公司 | Electrochemical energy storage station temperature monitoring system based on three-dimensional infrared imaging temperature measurement |
| CN113670469A (en) * | 2021-07-21 | 2021-11-19 | 广州大学 | IGBT power device based on distributed temperature measurement optical fiber and temperature monitoring method thereof |
| CN114046899A (en) * | 2021-11-11 | 2022-02-15 | 天津津航技术物理研究所 | Intelligent monitoring system for dangerous cargo temperature of port container |
| CN114333215A (en) * | 2022-01-07 | 2022-04-12 | 深圳市明圣电气有限公司 | Fire monitoring system and method |
| CN114724327A (en) * | 2022-05-24 | 2022-07-08 | 武汉新能源研究院有限公司 | Alarm device and method for lithium battery energy storage station |
| CN115048820A (en) * | 2022-08-15 | 2022-09-13 | 中国长江三峡集团有限公司 | Three-dimensional temperature field dynamic reconstruction method and device for electrochemical energy storage container |
| CN117633939A (en) * | 2024-01-26 | 2024-03-01 | 山东浪潮数据库技术有限公司 | Fire control design method for energy storage cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111082166A (en) * | 2019-11-20 | 2020-04-28 | 国网江苏省电力有限公司电力科学研究院 | Electrochemical energy storage safety early warning system and method |
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| CN113670469A (en) * | 2021-07-21 | 2021-11-19 | 广州大学 | IGBT power device based on distributed temperature measurement optical fiber and temperature monitoring method thereof |
| CN114046899A (en) * | 2021-11-11 | 2022-02-15 | 天津津航技术物理研究所 | Intelligent monitoring system for dangerous cargo temperature of port container |
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| CN114724327A (en) * | 2022-05-24 | 2022-07-08 | 武汉新能源研究院有限公司 | Alarm device and method for lithium battery energy storage station |
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| CN117633939A (en) * | 2024-01-26 | 2024-03-01 | 山东浪潮数据库技术有限公司 | Fire control design method for energy storage cabinet |
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Application publication date: 20190719 |