CN208953133U - A kind of distributed fiber temperature measuring device - Google Patents
A kind of distributed fiber temperature measuring device Download PDFInfo
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- CN208953133U CN208953133U CN201821899019.4U CN201821899019U CN208953133U CN 208953133 U CN208953133 U CN 208953133U CN 201821899019 U CN201821899019 U CN 201821899019U CN 208953133 U CN208953133 U CN 208953133U
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- temperature measuring
- optical cable
- thermometric host
- temperature
- control device
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Abstract
The utility model discloses a kind of distributed fiber temperature measuring devices, including thermometric host, interchanger, server, temperature measuring optical cable and fire control device, the thermometric host, interchanger and server are connected by communication backbone network, the fire control device is provided with relay unit, and the fire control device is connected with thermometric host, the temperature measuring optical cable is connect with thermometric host, this utility model can accurately and timely position temperature anomaly point, and show the temperature reading and position, fast response time, without wrong report, and this device stable and reliable operation, freedom from repairs, far measuring distance, optical fiber is not by electromagnetic interference, intrinsic safety, suitable for catastrophe risk occasion, and silica fibre is corrosion-resistant ageing-resistant, service life is long, at low cost and suitable adverse circumstances, the final operating cost of entire engineering can be substantially reduced using fibre optical sensor.
Description
Technical field
The utility model relates to technical field of optical fiber sensing, specially a kind of distributed fiber temperature measuring device.
Background technique
Distributed optical fiber temperature measurement is widely used in the temperature monitoring of the facilities such as electric power, petrochemical industry, traffic, building, water conservancy
In fire alarm, the length of high-voltage transmission cable is very long, and any point temperature overheating all may cause huge warp on cable
Ji loss often uses conventional linear temperature sensing cable at this stage, and principle is to distinguish coated thermo-sensitive material by two elastic wires,
Molding is made in strand.When rising to rated function temperature, temperature-sensitive insulating materials causes short circuit to issue report between steel wire
It is alert.Traditional linear temperature sensing cable is not capable of measuring temperature, can only judge that temperature, can only be according to insulating layer whether there is or not being more than preset value
Material passively selects alarm temperature value, and cannot be according to environment set, and when alarm has often formed terrible disaster, after alarm, temperature-sensitive
Cable damages, and in humidity, corrosive situations, insulated hull is easily damaged, and MaLS only has several years, because of insulated hull aging and electricity
The factors such as magnetic disturbance easily generate wrong report, and because of its electrification, therefore are not suitable for catastrophe risk occasion.
Utility model content
The technical issues of the utility model solves is the defects of overcoming the narrow range of the prior art and high failure rate, provides
A kind of distributed fiber temperature measuring device.It is special that a kind of distributed fiber temperature measuring device has that range is wide and optical fiber is hardly damaged etc.
Point.
To achieve the above object, the utility model provides the following technical solutions: including thermometric host, interchanger, server,
Temperature measuring optical cable and fire control device, the thermometric host, interchanger and server are connected by communication backbone network, the fire
Controller is provided with relay unit, and the fire control device is connected with thermometric host, the temperature measuring optical cable and thermometric host
Connection.
Preferably, the inner core of the temperature measuring optical cable is set as band coating optical fiber, the outer wall set of the band coating optical fiber
Equipped with gel filled loose tube, the outer wall of the gel filled loose tube is equipped with oversheath, the gel filled loose tube with
The inner wall of oversheath is filled with multilayer aramid yarn.
Preferably, the thermometric host externally connected with display screen, the rear wall of the thermometric host are provided with the outer of AP Sensing
Portion's interface, the external interface of the AP Sensing is by temperature measuring optical cable interface, relay expansion interface, network interface and RS232/
485 interfaces composition.
Preferably, the fire control device is connected with each other by relay unit and thermometric host.
Preferably, semiconductor laser light resource is set in the thermometric host, and maximum probe length is not less than 10 kilometers, and not
The case where lower than 12 channels, temperature measurement accuracy reach ± 1 DEG C, and spatial resolution is not higher than 1m, and thermometric length is not less than 10 kilometers
Under, single channel time of measuring is no more than 30s.
Preferably, the output end of the temperature measuring optical cable connects the continuous box of optical cable, the output end of the continuous box of optical cable and survey
Warm host connection.
Preferably, 4 temperature measuring optical cable interfaces of setting in the external interface of the AP Sensing, 48 relay extensions
Interface, 2 network interfaces and 1 RS232/485 interface.
Preferably, the fire control device can export alarm signal by the dry node of relay in relay unit,
Or phone, short message, network startup external alert device.
Compared with prior art, the utility model has the beneficial effects that
1, continuously distributed formula measurement, distributed fiberoptic sensor is real distributed measurement, can continuously obtain edge
Tens kilometers of temperature measuring optical cable of metrical information, range it is wide.
2, electromagnetism interference can normally work in high electromagnetic environment, and optical fiber itself is made of quartz material,
Complete electrical isolation；The signal of fibre optical sensor is the intrinsic safety using optical fiber as carrier simultaneously, not by any external electromagnetic ring
The interference in border.
3, intrinsic lightning protection, thunder and lightning often destroy a large amount of electrometric sensor.Fibre optical sensor, can due to being completely electrically insulated
To resist the impact of high voltage and high current.
4, far measuring distance, suitable for long-range monitoring, two outstanding advantages of optical fiber are exactly transmitted data amount greatly and loss is small,
Without relaying, tens kilometers of long-range monitoring may be implemented.
5, thermometric host and fire control device are used cooperatively, and have compact-sized, low in energy consumption, performance high and convenient for dimension
The advantages that shield.
7, the distribution type fiber-optic service life is long, at low cost, this device is easy to use, and the material of optical fiber is quartz glass, has
The not characteristic that burn into fire resisting, water-fast and service life are grown, can usually be on active service 30 years.Comprehensively consider sensor own cost and
Later maintenance cost can substantially reduce the final operating cost of entire engineering using fibre optical sensor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of distributed optical fiber temperature measurement provided by the utility model.
Fig. 2 is temperature measuring optical cable structural schematic diagram provided by the utility model；
Fig. 3 is thermometric host rear wall schematic diagram provided by the utility model.
Figure label: 1, thermometric host；11, the external interface of AP Sensing；2, the continuous box of optical cable；3, temperature measuring optical cable；
31, oversheath；32, aramid yarn；33, gel filled loose tube；34, band coating optical fiber；4, interchanger；5, server；6, after
Electric appliance unit；7, fire control device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1,2,3 are please referred to, the utility model provides a kind of technical solution: a kind of distributed fiber temperature measuring device, including
Thermometric host 1, interchanger 4, server 5, temperature measuring optical cable 3 and fire control device 7, thermometric host 1, interchanger 4 and server 5
Connected by communication backbone network, fire control device 7 is provided with relay unit 6, and fire control device 7 and thermometric host 1 connect
It connects, temperature measuring optical cable 3 is connect with thermometric host 1, and 1 externally connected with display screen of thermometric host, the rear wall of thermometric host 1 is provided with AP
The external interface 11 of Sensing, the external interface 11 of AP Sensing is by temperature measuring optical cable interface, relay expansion interface, network
Interface and RS232/485 interface composition, 4 temperature measuring optical cable interfaces of setting in the external interface 11 of AP Sensing, 48 after
Semiconductor laser light resource is arranged in thermometric host 1 in electric appliance expansion interface, 2 network interfaces and 1 RS232/485 interface, maximum
It detecting length and is not less than 10 kilometers, and be not less than 12 channels, temperature measurement accuracy reaches ± 1 DEG C, and spatial resolution is not higher than 1m,
In the case that thermometric length is not less than 10 kilometers, single channel time of measuring is no more than 30s, and thermometric host 1 is filled comprising optical fiber temperature-measurement
Set thermometric software, tail optical fiber etc.；It is convenient that thermometric host 1 configures, and expansibility is strong, authorization configuration, can real-time monitoring cable body temperature
It spends, and can include that temperature is excessively high in temperature anomaly, temperature rise issues alarm and is accurately positioned whens too fast equal, measurement is reachable apart from longest
30km, distributed fiber temperature measuring device meet the online real time temperature monitoring to high-tension cable, and fire control device 7 passes through relay
Device unit 6 and thermometric host 1 are connected with each other, and fire control device 7 can be exported by the dry node of relay in relay unit 6
Alarm signal starts acoustic-optic alarm, can also be alarmed by phone, short message, network, the alarm of fire control device 7
Data can be arranged in software, and each region should be able at least be independently arranged 5 alarm parameters: maximum temperature alarm, temperature rise
Rate alarm, maximum temperature and mean temperature difference (local hot spot) alarm, optical fiber destroy the alarms such as alarm, device exception,
Different regions should be able to independently alarm, type of alarm except main controller screen show and audible alarm basic demand in addition to, and have report
Alert output port, if temperature is more than the alarm temperature of setting, an alarm signal is just issued；User can edit setting report
Alert processing mode, such as send short messages, flashing light, whistle；Type of alarm: multiple alarm parameters can be set in test point/region；Temperature
It spends high alarm: setting the maximum temperature of cable work, be more than alarm；The too low alarm of temperature: setting lowest temperature angle value is lower than
This value alarm, found the abnormal situation；Differential temperature alarm: certain point temperature and the excessive alarm of mean temperature difference, for differentiating
Local hot spot；Temperature rise, which is crossed, reports to the police: allowing the change rate of temperature in the setting unit time, is more than this value alarm, for sending out
Existing temperature anomaly point；Alarm compared with previous temperature: opposite variation is alarmed with last temperature for setting, for finding that burst is different
Chang Dian；Optical fiber destroys alarm: when temperature-measuring optical fiber is broken, automatic alarm；When alert process, alarm region is shown on screen when alarm
Information, and equipment linkage is controlled with other；Alarm signal is exported by the dry node of relay, starts acoustic-optic alarm, it can also
To be alarmed by phone, short message, network, grade and two layers of management level are made in the alarm division of labor, send according to the severity level of event
It include responsible person, warning message persistence to working lining personnel and full complement.
Referring to Fig. 2, the utility model provides a kind of technical solution: a kind of distributed fiber temperature measuring device, temperature measuring optical cable 3
Inner core be set as band coating optical fiber 34, the outer wall of band coating optical fiber 34 is arranged with gel filled loose tube 33, and filling is solidifying
The outer wall of the loose tube 33 of glue is equipped with oversheath 31, and gel filled loose tube 33 and the inner wall of oversheath 31 are filled with multilayer aramid fiber
Yarn 32, band coating optical fiber 34 use Sensor-T type, and Sensor-T is the multimode fibre of 50/125 μm of inside, external
For low smoke and zero halogen, flame retardant type thermoplastic material, such optical cable is more soft, is easily installed, while oversheath 31 also has well
Thermal conduction characteristic and anticorrosion properties, furthermore the optical cable is completely insulated without any metal structure, is very suitable to high-tension cable
Temperature monitoring.
Utility model works principle, when the utility model monitors tunnel cable temperature first, the laying of temperature measuring optical cable 3 and electricity
Cable surface passes through band binding and fixing；And in the cable between connector take and reinforce laying to realize to the emphasis of cable connector prison
Control；Temperature measuring optical cable 3 is connected on thermometric host 1 by the transmitting of the continuous box 2 of optical cable again, thermometric host, interchanger and service
Device is connected by communication backbone network, and thermometric host 1 is connected with each other by relay unit and fire control device, thermometric host 1
Semiconductor laser after middle setting, can occur Raman scattering, be reflected back two kinds of different wave lengths when laser is propagated in a fiber
Stokes light and Antistokes light, the intensity by comparing two-beam can calculate temperature along the distribution curve of optical fiber；
Every along object length to be measured temperature can be accurately measured, temperature accuracy is high, and operation cable can be monitored in real time
Cable table temperature exports warning message once cable table temperature reaches alarm setting value；It simultaneously can also be by way of network
Industrial personal computer is sent data to, cable real time temperature can be grasped at any time, when finding cable operating temperature exception, fire control
Device 7 has warning function, can sound an alarm, in time eliminate fire, and temperature-measuring range can arbitrarily be set at -50~150 DEG C
The fixed warm alarming value of multistage and temperature rise rate alarm, real-time display temperature distribution history accomplish early warning before fire generation, quasi-
Temperature anomaly point is really positioned in time, and shows the temperature reading and position, and fast response time, no wrong report, optical fiber is not by electricity
Magnetic disturbance, intrinsic safety are suitable for catastrophe risk occasion, and no wrong report, silica fibre is corrosion-resistant ageing-resistant, are suitble to adverse circumstances.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of distributed fiber temperature measuring device, including thermometric host (1), interchanger (4), server (5), temperature measuring optical cable (3)
With fire control device (7), it is characterised in that: the thermometric host (1), interchanger (4) and server (5) pass through communication backbone
Network connects, and the fire control device (7) is provided with relay unit (6), and the fire control device (7) and thermometric host (1)
Connection, the temperature measuring optical cable (3) connect with thermometric host (1).
2. a kind of distributed fiber temperature measuring device according to claim 1, it is characterised in that: the temperature measuring optical cable (3)
Inner core is set as band coating optical fiber (34), and the outer wall of the band coating optical fiber (34) is arranged with gel filled loose tube
(33), the outer wall of the gel filled loose tube (33) is equipped with oversheath (31), the gel filled loose tube (33) and outer
The inner wall of sheath (31) is filled with multilayer aramid yarn (32).
3. a kind of distributed fiber temperature measuring device according to claim 1, it is characterised in that: the thermometric host (1) is outside
Display screen is connect, the rear wall of the thermometric host (1) is provided with the external interface (11) of AP Sensing, the AP Sensing's
External interface (11) is made of temperature measuring optical cable interface, relay expansion interface, network interface and RS232/485 interface.
4. a kind of distributed fiber temperature measuring device according to claim 1, it is characterised in that: the fire control device (7)
It is connected with each other by relay unit (6) and thermometric host (1).
5. a kind of distributed fiber temperature measuring device according to claim 1, it is characterised in that: in the thermometric host (1)
Semiconductor laser light resource is set, and maximum probe length is not less than 10 kilometers, and is not less than 12 channels, and temperature measurement accuracy reaches ± 1
DEG C, spatial resolution is not higher than 1m, and in the case that thermometric length is not less than 10 kilometers, single channel time of measuring is no more than 30s.
6. a kind of distributed fiber temperature measuring device according to claim 1, it is characterised in that: the temperature measuring optical cable (3)
Output end connects the continuous box of optical cable (2), and the output end of the continuous box of optical cable (2) is connect with thermometric host (1).
7. a kind of distributed fiber temperature measuring device according to claim 1, it is characterised in that: the AP Sensing's is outer
4 temperature measuring optical cable interfaces of setting, 48 relay expansion interfaces, 2 network interfaces and 1 RS232/ in portion's interface (11)
485 interfaces.
8. a kind of distributed fiber temperature measuring device according to claim 4, it is characterised in that: the fire control device (7)
Alarm signal or phone, short message, network startup outside report can be exported by the dry node of relay in relay unit (6)
Alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821899019.4U CN208953133U (en) | 2018-11-19 | 2018-11-19 | A kind of distributed fiber temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821899019.4U CN208953133U (en) | 2018-11-19 | 2018-11-19 | A kind of distributed fiber temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208953133U true CN208953133U (en) | 2019-06-07 |
Family
ID=66744798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821899019.4U Active CN208953133U (en) | 2018-11-19 | 2018-11-19 | A kind of distributed fiber temperature measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693173A (en) * | 2019-03-12 | 2020-09-22 | 中国石油化工股份有限公司 | Oil storage tank double-machine temperature measurement real-time monitoring method |
| CN112903300A (en) * | 2019-12-04 | 2021-06-04 | 中国航发商用航空发动机有限责任公司 | Fire extinguishing method, fire extinguishing apparatus, gas turbine, test bench, and computer-readable storage medium |
-
2018
- 2018-11-19 CN CN201821899019.4U patent/CN208953133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693173A (en) * | 2019-03-12 | 2020-09-22 | 中国石油化工股份有限公司 | Oil storage tank double-machine temperature measurement real-time monitoring method |
| CN112903300A (en) * | 2019-12-04 | 2021-06-04 | 中国航发商用航空发动机有限责任公司 | Fire extinguishing method, fire extinguishing apparatus, gas turbine, test bench, and computer-readable storage medium |
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