CN204965668U - Cable pit conflagration on -line monitoring device of transformer substation - Google Patents
Cable pit conflagration on -line monitoring device of transformer substation Download PDFInfo
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Abstract
一种变电站电缆沟火灾在线监测装置,由电缆沟火灾在线监测子站、通讯网、主站组成。温度传感器、烟雾传感器、微处理器、电源模块、通信模块等构成监测子站;信号采集模块负责接收监测各种终端传感器传输回的监测数据信号;通信模块负责将已采集到终端信号及终端故障信号传输至主站;主站通过判断各个子站发回的信息量值是否超过预设的告警阈值,快速定位火灾或终故障终端位置,并启动相应的预警及辅助决策。本实用新型适用于无人值守变电站的电缆沟火灾在线监测。
An on-line monitoring device for a cable trench fire in a substation, which is composed of a cable trench fire on-line monitoring substation, a communication network, and a main station. Temperature sensor, smoke sensor, microprocessor, power module, communication module, etc. constitute the monitoring sub-station; the signal acquisition module is responsible for receiving and monitoring the monitoring data signals transmitted by various terminal sensors; the communication module is responsible for collecting the collected terminal signals and terminal faults The signal is transmitted to the main station; the main station quickly locates the location of the fire or final fault terminal by judging whether the information sent back by each sub-station exceeds the preset alarm threshold, and initiates corresponding early warning and auxiliary decision-making. The utility model is suitable for on-line monitoring of cable trench fires in unattended substations.
Description
技术领域 technical field
本实用新型涉及一种变电站电缆沟火灾在线监测装置,属电力系统自动化技术领域。 The utility model relates to an on-line fire monitoring device for cable trenches in substations, which belongs to the technical field of electric power system automation.
背景技术 Background technique
变电站内的输电及配电线路进出变电站一般采用电缆经电缆沟敷设方式,为节约用地及施工成本,一般共用一条或数条电缆沟。电缆通过电缆沟埋在地下,一旦发生火灾很难发现,特别是目前变电站普遍是无人值守,一旦发生火灾后往往需要很长时间才能通过火警或其他方式发现,此时电缆沟内众多电力电缆已受损,导致出现大范围停电事件,严重影响供电企业的供电可靠性。 The transmission and distribution lines in the substation are generally laid through cable trenches. In order to save land and construction costs, one or several cable trenches are generally shared. Cables are buried underground through cable trenches. Once a fire occurs, it is difficult to find, especially at present, substations are generally unattended. Once a fire occurs, it often takes a long time to be discovered by fire alarms or other methods. At this time, there are many power cables in the cable trench. It has been damaged, leading to large-scale power outages and seriously affecting the reliability of power supply of power supply companies.
发明内容 Contents of the invention
本实用新型的目的是,为了实现对变电站电缆沟火灾实时监测,从而及时处理火灾,避免因众多电力电缆烧损而造成大范围停电事件,提供一种基于物联网技术对变电站电缆沟火灾情况进行实时监测的装置。 The purpose of this utility model is, in order to realize the real-time monitoring of the fire in the cable trench of the substation, so as to deal with the fire in time, avoid the large-scale blackout event caused by the burning of many power cables, and provide a method based on the Internet of Things technology to monitor the fire situation of the cable trench in the substation. Devices for real-time monitoring.
本实用新型的技术方案是,本实用新型一种变电站电缆沟火灾在线监测装置包括监测终端和电缆沟火灾在线监测主站;监测主机通过互连网与监测终端连接。 The technical scheme of the utility model is that an on-line monitoring device for a cable trench fire in a substation of the utility model includes a monitoring terminal and a cable trench fire online monitoring main station; the monitoring host is connected to the monitoring terminal through an internet.
所述装置中的监测终端包括温度传感器、烟雾传感器、微处理器、电源模块、通信模块。温度传感器和烟雾传感器分别通过A/D转换器接入微处理器的输入端,微处理器的输出端接通信模块,电源模块连接微处理器并向其供电。 The monitoring terminal in the device includes a temperature sensor, a smoke sensor, a microprocessor, a power supply module and a communication module. The temperature sensor and the smoke sensor are respectively connected to the input end of the microprocessor through the A/D converter, the output end of the microprocessor is connected to the communication module, and the power supply module is connected to the microprocessor and supplies power to it.
温度传感器和烟雾传感器安装在电缆沟内,根据实际需要确定安装数量和具体安装位置,可实时监测所处位置环境;微处理器采集传感器收集的信号并进行处理,通信模块采用物联网自组网通信方式,可将微处理器处理过的信号及终端心跳信息发送至电缆沟火灾在线监测主站。电源模块为监测终端提供电源,采用CT取电加锂电池方式,正常情况下通过扣在电力电缆上的CT取电,如电力电缆停运检修情况靠锂电池维持工作。 The temperature sensor and smoke sensor are installed in the cable trench, and the installation quantity and specific installation location are determined according to the actual needs, and the location environment can be monitored in real time; the signal collected by the sensor is collected by the microprocessor and processed, and the communication module adopts the Internet of Things ad hoc network The communication method can send the signal processed by the microprocessor and the terminal heartbeat information to the cable trench fire online monitoring master station. The power supply module provides power for the monitoring terminal. It adopts the method of CT and lithium battery to get power. Under normal circumstances, it gets power through the CT buckled on the power cable. If the power cable is out of service for maintenance, it depends on the lithium battery to maintain work.
所述装置中的火灾在线监测主站包括工控主机、信号采集模块和通信模块。工控主机为火灾在线监测主站的载体,信号采集模块负责接收监测终端传输回的监测信号,工控机实现火灾告警,火灾点定位,终端故障告警,人机交互,通信接口等功能,通信模块负责将火灾告警信号及终端故障信号经变电站远动装置或变电站智能辅助系统传输至集控站,实现变电站电缆沟火灾及变电站电缆沟火灾在线监测装置运行状况远程在线监测。 The fire online monitoring master station in the device includes an industrial control host, a signal acquisition module and a communication module. The industrial control host is the carrier of the fire online monitoring master station. The signal acquisition module is responsible for receiving the monitoring signals transmitted by the monitoring terminal. The fire alarm signal and terminal fault signal are transmitted to the centralized control station through the substation telecontrol device or the substation intelligent auxiliary system to realize remote online monitoring of the substation cable trench fire and the operation status of the substation cable trench fire online monitoring device.
本实用新型与现有技术比较的有益效果是,本实用新型采用了物联网自组网技术,避免了变电站内敷设485或光纤等通信线路的工作,同时新增加的监测终端可自主组网,避免了通信调试工作,监测终端带自检功能,可定时发送心跳信息,确保终端处于正常工作状态。 The beneficial effect of the utility model compared with the prior art is that the utility model adopts the self-organizing network technology of the Internet of Things, avoiding the work of laying communication lines such as 485 or optical fiber in the substation, and at the same time, the newly added monitoring terminal can form a network independently, Communication debugging work is avoided, and the monitoring terminal has a self-test function, which can send heartbeat information regularly to ensure that the terminal is in a normal working state.
本实用新型适用于无人值守变电站的电缆沟火灾在线监测。 The utility model is suitable for on-line monitoring of cable trench fires in unattended substations.
附图说明 Description of drawings
图1为本实用新型一种变电站电缆沟火灾在线监测装置结构示意图; Fig. 1 is a structural schematic diagram of an on-line fire monitoring device for a substation cable trench according to the present invention;
图2为传统变电站电缆沟火灾处理耗时与本实用新型装置发出告警信号后电网公司处理平均耗时对比示意图。 Fig. 2 is a schematic diagram showing the comparison of the average time-consuming processing time for a cable trench fire in a traditional substation and the average time-consuming processing by the power grid company after the device of the utility model sends out an alarm signal.
图中,A1为传统方法发现时间;B1为在线监测方法发现时间;A2为传统方法到达现场时间;B2为在线监测方法到达现场时间;A3为传统方法抢修恢复时间;B3为在线监测方法抢修恢复时间。 In the figure, A1 is the discovery time of the traditional method; B1 is the discovery time of the online monitoring method; A2 is the arrival time of the traditional method; B2 is the arrival time of the online monitoring method; A3 is the recovery time of the traditional method; B3 is the recovery time of the online monitoring method time.
具体实施方式 detailed description
本实用新型具体实施例变电站电缆沟火灾在线监测装置如图1所示。本实施例装置中的监测终端由温度传感器、烟雾传感器、微处理器、电源模块、通信模块所组成。 The specific embodiment of the utility model is shown in Fig. 1 as an on-line monitoring device for a cable trench fire in a substation. The monitoring terminal in the device of this embodiment is composed of a temperature sensor, a smoke sensor, a microprocessor, a power module, and a communication module.
温度传感器和烟雾传感器安装在电缆沟内,根据实际需要确定安装数量和具体安装位置,可实时监测所处位置环境;微处理器采集传感器收集的信号并进行处理,通信模块采用物联网自组网通信方式,可将微处理器处理过的信号及终端心跳信息发送至电缆沟火灾在线监测主站。电源模块为监测终端提供电源,采用CT取电加锂电池方式,正常情况下通过扣在电力电缆上的CT取电,如电力电缆停运检修情况靠锂电池维持工作。 The temperature sensor and smoke sensor are installed in the cable trench, and the installation quantity and specific installation location are determined according to the actual needs, and the location environment can be monitored in real time; the signal collected by the sensor is collected by the microprocessor and processed, and the communication module adopts the Internet of Things ad hoc network The communication method can send the signal processed by the microprocessor and the terminal heartbeat information to the cable trench fire online monitoring master station. The power supply module provides power for the monitoring terminal. It adopts the method of CT and lithium battery to get power. Under normal circumstances, it gets power through the CT buckled on the power cable. If the power cable is out of service for maintenance, it depends on the lithium battery to maintain work.
本实施例装置的主站包括工控主机、信号采集模块和通信模块,工控主机实时对监测终端发回的变电站电缆沟运行环境监测信息进行分析,发现某终端发回信息超过主站预设的告警阈值后,主站判断电缆沟发生火灾并确定火灾发生位置,之后将变电站电缆沟某位置发生火灾以预先设定的报文格式通过远动系统上送至变电站集控站,集控站运行监控人员接到告警信号后通知变电抢修人员赴现场进行火灾处理。 The main station of the device in this embodiment includes an industrial control host, a signal acquisition module and a communication module. The industrial control host analyzes the monitoring information of the substation cable trench operation environment sent back by the monitoring terminal in real time, and finds that the information sent back by a certain terminal exceeds the alarm preset by the main station. After the threshold is reached, the master station judges that a fire has occurred in the cable trench and determines the location of the fire, and then sends a fire at a certain position in the cable trench of the substation to the centralized control station of the substation through the telecontrol system in a pre-set message format, and the centralized control station operates and monitors After receiving the alarm signal, the personnel notified the substation emergency repair personnel to go to the scene to deal with the fire.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106297156A (en) * | 2016-10-09 | 2017-01-04 | 南京工程学院 | A kind of power plant cable fire on-line monitoring early warning system and method |
CN106959168A (en) * | 2017-04-28 | 2017-07-18 | 广东电网有限责任公司清远供电局 | The temperature monitoring system of outlet cable ditch |
CN107727156A (en) * | 2017-07-26 | 2018-02-23 | 国网新疆电力公司博尔塔拉供电公司 | A kind of cable duct monitoring and warning equipment |
CN107886671A (en) * | 2017-10-26 | 2018-04-06 | 国家电网公司 | A kind of gas recombination detector for cable fire |
CN108200144A (en) * | 2017-12-28 | 2018-06-22 | 重庆路之生科技有限责任公司 | Based on internet cloud platform power equipment remote monitoring system |
CN109215279A (en) * | 2018-09-11 | 2019-01-15 | 内蒙古电力勘测设计院有限责任公司 | A kind of fire alarm system and method based on cable tunnel |
CN110823295A (en) * | 2019-12-20 | 2020-02-21 | 国网湖北省电力公司咸宁供电公司 | Transformer substation cable trench environment state monitoring system and monitoring method thereof |
CN113781732A (en) * | 2021-07-23 | 2021-12-10 | 广东电网有限责任公司广州供电局 | Cable channel fire early warning method and device based on intelligent gateway |
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2015
- 2015-06-17 CN CN201520416121.4U patent/CN204965668U/en active Active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106297156A (en) * | 2016-10-09 | 2017-01-04 | 南京工程学院 | A kind of power plant cable fire on-line monitoring early warning system and method |
CN106959168A (en) * | 2017-04-28 | 2017-07-18 | 广东电网有限责任公司清远供电局 | The temperature monitoring system of outlet cable ditch |
CN106959168B (en) * | 2017-04-28 | 2024-02-20 | 广东电网有限责任公司清远供电局 | Temperature monitoring system of outgoing cable trench |
CN107727156A (en) * | 2017-07-26 | 2018-02-23 | 国网新疆电力公司博尔塔拉供电公司 | A kind of cable duct monitoring and warning equipment |
CN107886671A (en) * | 2017-10-26 | 2018-04-06 | 国家电网公司 | A kind of gas recombination detector for cable fire |
CN108200144A (en) * | 2017-12-28 | 2018-06-22 | 重庆路之生科技有限责任公司 | Based on internet cloud platform power equipment remote monitoring system |
CN109215279A (en) * | 2018-09-11 | 2019-01-15 | 内蒙古电力勘测设计院有限责任公司 | A kind of fire alarm system and method based on cable tunnel |
CN110823295A (en) * | 2019-12-20 | 2020-02-21 | 国网湖北省电力公司咸宁供电公司 | Transformer substation cable trench environment state monitoring system and monitoring method thereof |
CN113781732A (en) * | 2021-07-23 | 2021-12-10 | 广东电网有限责任公司广州供电局 | Cable channel fire early warning method and device based on intelligent gateway |
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