CN202383490U - Cable tunnel environment monitoring devcie - Google Patents
Cable tunnel environment monitoring devcie Download PDFInfo
- Publication number
- CN202383490U CN202383490U CN2011205029205U CN201120502920U CN202383490U CN 202383490 U CN202383490 U CN 202383490U CN 2011205029205 U CN2011205029205 U CN 2011205029205U CN 201120502920 U CN201120502920 U CN 201120502920U CN 202383490 U CN202383490 U CN 202383490U
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- Prior art keywords
- monitoring
- cable tunnel
- end processor
- centralized
- cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
A cable tunnel environment monitoring device comprises a host arranged inside a transformer station master control room, the host is connected with a front-end processor, and the front-end processor is connected with a plurality of measuring units and control units through buses. The device is reasonable in structure, simple in operation, safe and reliable, timely in monitoring, accurate in judging, low in costs, high in efficiency and good in stability, especially an intelligent front-end processor logic controller provided with a 485 bus is adopted to realize network connection, and a complete network is formed through connecting the measuring units and the control units. Thus, goals of centralized measuring, centralized display and alarm, centralized control and centralized management are reached, accuracy and versatility of monitoring results are enhanced, systematic, comprehensive and accurate monitoring of the using environment of a power cable can be realized; and the cable tunnel on-line monitoring special matching device is an ideal device for realizing real-time monitoring of the power cable in a power supply network.
Description
Technical field
The utility model relates to the supply network online measuring technique, more particularly is the cable tunnel environmental monitoring installation about in supply network, pipe network, the tunnel pipeline, cable being monitored in real time.
Background technology
Because it is underground that high voltage power cable is layed in, behind the long-play maintenance usually not in place, add the influence of factors such as environment temperature; The defective position of part tends to heating, and electric current is big more, and temperature raises fast more; Heat generating spot resistance increases, thereby produces more heat, makes resistance further increase; Temperature continues to raise, and forms vicious cycle.If untimely discovery and processing cause on fire or blast the most at last, cause circuit to damage, but serious initiation fire and large-area power outage.This phenomenon seems particularly general in the area faster in load growth.
At present; Temperature monitoring to the significant points of power cable such as joint etc. mainly still goes to measure by manual work; Telemeasurement is carried out with infrared ray or laser thermodetector in the scene of for example regularly sending someone; Mainly there is following problem in the method for this manual measurement: 1. monitoring periods is long, and many local heating phenomenons can not get in time finding and handling; 2. monitoring range is restricted, can only the detection streamer joint, can't partly monitor the power cable that is enclosed in the pipeline; 3. detect with analysis and judgement and undertaken by manual work, therefore influenced by human factor bigger for detection and analysis result; 4. infrared ray or laser thermodetector price are often relatively more expensive, receive capital effect, and it is universal and the popularization difficulty is bigger.
In recent years; ABB, Siemens and more domestic manufacturers have also developed some high voltage power cable temperature monitoring equipment successively; But from applicable cases; Effect is not very desirable, and mainly show the following aspects: the technological difficulties that 1. high-tension isolation is the high voltage power cable temperature monitoring system also are key problem in technology.Existing temperature monitoring method mainly adopts thermocouple, thermal resistance, semiconductor temperature sensor equitemperature sensing element to realize; These temperature sensors are not the temperature of directly measuring charged object generally; And need through the plain conductor transmission signals; Sensor itself with and signal transmission passage receive the influence of electromagnetic interference (EMI) and environment bigger, can't guarantee insulating property, thereby can't guarantee the accuracy of monitoring result; 2. traditional temperature monitoring ubiquity sensor bulk is bigger than normal, difficult installation, be subject to environment and peripheral electromagnetic field interference, need manually-operated, realize the problem such as with high costs of on-line monitoring; Especially can't on the whole piece power cable, install; The temperature monitoring of the part joint of sub-fraction power cable can only be realized, the system of whole power cables, comprehensive, accurately monitoring can't be realized; 3. existing power cable temperature monitoring system or equipment; The overwhelming majority be electric power primary equipment manufacturer develop to own product monitoring equipment; Function singleness, versatility is poor, and operative norm is chaotic; And, be difficult to popularize and promote with supervisory system interface such as power transformation comprehensive automation difficulty.
Summary of the invention
The invention provides a kind of ability and eliminate above-mentioned shortcoming; Have rational in infrastructure, simple to operate, safe and reliable, monitoring in time, the cable tunnel environmental monitoring installation of accuracy of judgement, characteristics such as cost is low, efficient is high, good stability; Especially adopt intelligent front end processor logic controller band 485 bus forms to carry out network and connect, connect to form a whole network to each measuring unit and control module.Reach and concentrate to measure, centralized displaying is reported to the police, and the target of centralized control and centralized management has improved the accuracy and the versatility of monitoring result, the system of realization power cable environment for use, comprehensive and accurate monitoring; The information transmission of this system acquisition does not receive electromagnetic interference (EMI), moisture proof, and transmission range is long, and loss is little, also is prone to expansion; It is the special-purpose assorted device of cable tunnel on-line monitoring of in the desirable supply network power cable environment for use being monitored in real time.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of cable tunnel environmental monitoring installation comprises the main frame that is installed in transformer station's master-control room, and main frame links to each other with front end processor, and front end processor links to each other with several control modules with several measuring units through bus.Described bus is selected the RS485 bus for use.Said several measuring units are the one or more combination in any in water level detector, combustable gas concentration detector, Temperature Detector, fire-proof door sensor, blower fan sensor, cigarette sense formula detecting device, the well lid detecting device.Said several control modules are the one or more combination in any in unwatering pump, exhaust blower and the fire-proof door.This cable tunnel environmental monitoring system main process equipment is installed in transformer station's master-control room; Adopt intelligent front end processor logic controller band 485 bus forms to carry out network between main frame and each road sensor and be connected, connect to form a whole network to each measuring unit and control module.Reach to concentrate and measure, centralized displaying is reported to the police, the target of centralized control and centralized management.
Description of drawings
Fig. 1: cable tunnel environmental monitoring installation structural representation
1. main frames wherein, 2. front end processor, 3. water level detector, 4. combustable gas concentration detector, 5. Temperature Detector, 6. fire-proof door sensor, 7. blower fan sensor, 8. cigarette sense formula detecting device, 9. well lid detecting device, 10. unwatering pump, 11. exhaust blowers, 12. fire-proof doors.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
As shown in Figure 1, a kind of cable tunnel environmental monitoring installation comprises the main frame 1 that is installed in transformer station's master-control room, and main frame 1 links to each other with front end processor 2, and front end processor 2 links to each other with several control modules with several measuring units through bus.
The industry spot RS485 bus that said bus adopts communication cable to connect has communication distance far away and stronger antijamming capability.
Said several measuring units are water level detector 3, combustable gas concentration detector 4, Temperature Detector 5, fire-proof door 12 sensors 6, blower fan sensor 7, cigarette sense formula detecting device 8 and well lid detecting device 9, and it can detect multiple environmental aspect.
Said several control modules are unwatering pump 10, exhaust blower 11 and fire-proof door 12.Control module can provide the output node to device control such as exhaust blower 11, fire-proof doors 12, and these equipment are carried out Long-distance Control
Distant place workstation (main frame 1) is upper industrial computer, can carry out data acquisition and gathers various environment monitoring sensors, and through tunnel environment situation and data that configuration software shows on display, the operating environment condition in the tunnel come into plain view.Distant place workstation (main frame 1) can connect a plurality of front end processors 2.
System master system unit adopts intelligent front end processor 2, and front end processor 2 has stable, reliable, general characteristics, and is easy to use.Each front end processor 2 can connect a plurality of sensors and control module through bus.
The cable tunnel environmental monitoring installation function of the utility model realizes:
1. fire hazard monitoring: adopt digital smoke alarm, fire temperature sensor (installing in the short tunnel) and distributed temperature measuring optical fiber (installation in the long tunnel); Tunnel environment temperature and fire are monitored, and corresponding control nodes is outputed to corresponding fire-proof door 12.
Fire alarm (first priority): to long-range transmission alert data (position, temperature value); SMS is reported to the police to the related personnel.
2. gas concentration monitoring: adopt combustable gas concentration detector 4, the combustable gas concentration in the tunnel is detected and reports to the police.
Gas concentration is reported to the police (second priority): the blower fan that starts respective regions automatically; To long-range transmission alert data (position, concentration value); On-the-spot sound and light alarm; SMS is reported to the police to the related personnel.
3. water level monitoring: adopt 3 pairs of tunnels of throw-in type water level detector inner product regimen condition to monitor, according to the real time water level data water level information is provided by system.
Water-level alarm (second priority): to long-range transmission alert data (position, water level value); SMS is reported to the police to the related personnel.
4. well lid status monitoring: in real time the well lid state is monitored, and illegal well lid opened report to the police and locate
Well lid is illegally opened the local sound and light alarm of warning (the 3rd priority); Send remote alarms message (well lid type, position); SMS is reported to the police to the related personnel.
5. cable tunnel environmental monitoring system communication network
Tandem intelligence front end processor controller and upper industrial computer carry out interconnectedly through Ethernet, intelligent front end processor and each intelligent acquisition control module carry out communication.The intelligent acquisition control module is gathered data such as fire temperature, cigarette sense signal, water level signal, gas concentration, well lid status signal, and will output to equipment such as unwatering pump 10, exhaust blower 11, fire-proof door 12 accordingly.It is interconnected that front end processor 2 and intelligent acquisition control module adopt the RS-485 bus to carry out communication, connects to form a complete communication network, to reach the purpose of concentrating measurement, centralized displaying warning, centralized control and management.
The cable tunnel environmental monitoring installation of the utility model can be comprehensively, continuously, dynamically, real-time online display environment temperature curve, and can parameter be set according to user's warning, when temperature anomaly or fire, warning message and alert locations accurately are provided; Water level, inflammable gas content in collection in real time and the demonstration tunnel, and the warning message that sets each other off is provided when exceeding standard; Show the opening of electric power well lid in real time, and graphically locate; Can provide data of different types such as is added up, preserves, inquires about, prints, duplicates at function.Data type has temperature curve data (position and temperature value), temperature-averaging value and maximum value data, temperature analysis data, waterlevel data, combustable gas concentration data, well lid status data, classifying alarm data etc.; Software has and obtains data functions such as temperature, water level, combustable gas concentration through network.
The cable tunnel environmental monitoring installation technical indicator of the utility model: point type temperature measurer precision: ± 0.3 ℃; Inflammable gas sensing range: 0-100% LEL; Water level detecting range: 0-2.0 rice, nominal accuracy: 0.5% full scale; System patrolled and examined the response time: less than 5 seconds; Warning, control response time: less than 1 second.
Claims (4)
1. a cable tunnel environmental monitoring installation is characterized in that it comprises the main frame that is installed in transformer station's master-control room, and main frame links to each other with front end processor, and front end processor links to each other with several control modules with several measuring units through bus.
2. cable tunnel as claimed in claim 1 environmental monitoring installation is characterized in that said bus is the RS485 bus.
3. cable tunnel as claimed in claim 1 environmental monitoring installation is characterized in that said several measuring units are the one or more combination in any in water level detector, combustable gas concentration detector, Temperature Detector, fire-proof door sensor, blower fan sensor, cigarette sense formula detecting device, the well lid detecting device.
4. cable tunnel as claimed in claim 1 environmental monitoring installation is characterized in that said several control modules are the one or more combination in any in unwatering pump, exhaust blower and the fire-proof door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205029205U CN202383490U (en) | 2011-12-06 | 2011-12-06 | Cable tunnel environment monitoring devcie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205029205U CN202383490U (en) | 2011-12-06 | 2011-12-06 | Cable tunnel environment monitoring devcie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383490U true CN202383490U (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205029205U Expired - Fee Related CN202383490U (en) | 2011-12-06 | 2011-12-06 | Cable tunnel environment monitoring devcie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383490U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495599A (en) * | 2011-12-06 | 2012-06-13 | 山东电力集团公司青岛供电公司 | System for monitoring cable tunnel environment |
| CN103412498A (en) * | 2013-08-20 | 2013-11-27 | 国家电网公司 | Cable joint environmental control method in tunnel |
| CN113029390A (en) * | 2021-03-07 | 2021-06-25 | 哈夫曼数字技术(苏州)有限公司 | Tunnel contact channel freezing method three-dimensional intelligent monitoring system and monitoring method |
-
2011
- 2011-12-06 CN CN2011205029205U patent/CN202383490U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495599A (en) * | 2011-12-06 | 2012-06-13 | 山东电力集团公司青岛供电公司 | System for monitoring cable tunnel environment |
| CN103412498A (en) * | 2013-08-20 | 2013-11-27 | 国家电网公司 | Cable joint environmental control method in tunnel |
| CN113029390A (en) * | 2021-03-07 | 2021-06-25 | 哈夫曼数字技术(苏州)有限公司 | Tunnel contact channel freezing method three-dimensional intelligent monitoring system and monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20141206 |
|
| EXPY | Termination of patent right or utility model |