An environmental monitoring system for power tunnels

Abstract

The present invention provides an environmental monitoring system for a power tunnel, including an upper monitoring host, a remote monitoring terminal, an integrated monitoring network, an optical fiber ring network, multiple network switches, and multiple regional control units, each of which includes an SF6 gas leakage detection unit, a harmful gas detection unit, an air oxygen content detection unit, a temperature detection unit, a humidity detection unit, and a water level detection unit. The present invention comprehensively grasps the water level and gas conditions in the tunnel, promptly discovers water accumulation and external water seepage, and promptly discovers the location of hidden dangers and water level values, gas component content, etc. through water level and gas monitoring alarms, and reports and records original data; at the same time, the system itself has fan and water pump control functions, and when the SF6 gas, other harmful gas content, water accumulation, and ambient temperature and humidity in the tunnel exceed certain standards, the exhaust and drainage devices will be automatically started for ventilation and drainage.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel monitoring, and in particular relates to an environment monitoring system for a power tunnel. Background Art

[0002] Although UHV GIL has been applied in substations, there has been no research on UHV GIL tunnel safety protection monitoring and control. Currently, the applied GIL online monitoring is limited to the online monitoring of short-distance GIL in substations. There are no mature and complete application examples for long-distance GIL arranged in riverbed tunnels. What online monitoring methods should be used, how to arrange each type of monitoring, and the linkage between various monitoring systems need to be further studied and determined.

[0003] Domestic and foreign research on air flow and soil heat exchange inside tunnels is mostly focused on highway tunnels and subway tunnels. Since the ventilation form of GIL corridors is quite different from that of highways and subways, the monitoring of GIL corridor tunnels and equipment by the GIL safety protection monitoring system is not simply to set up relevant auxiliary equipment according to functional requirements to complete the corresponding monitoring and control functions. Instead, on the premise of building a complete comprehensive monitoring system, all independent real-time online monitoring systems in the GIL corridor tunnel and ground access station are networked, integrated and digitized to achieve highly intelligent and systematic linkage on the basis of full information sharing, so as to form a comprehensive online monitoring system. Summary of the invention

[0004] The present invention comprehensively grasps the water level and gas conditions in the tunnel, promptly discovers water accumulation and external water seepage, and promptly discovers the location of potential hazards and water level values, gas composition content, etc. through water level and gas monitoring alarms, and reports and records original data; at the same time, the system itself has fan and water pump control functions. When the SF6 gas, other harmful gas content, water accumulation and ambient temperature and humidity in the tunnel exceed certain standards, the exhaust and drainage devices will be automatically started for ventilation and drainage.

[0005] The present invention is specifically an environmental monitoring system for a power tunnel, which includes an upper monitoring host, a remote monitoring terminal, an integrated monitoring network, an optical fiber ring network, multiple network switches and multiple regional control units, each of which is connected to a regional control unit; the network switches are interconnected through an optical fiber ring network and finally connected to the integrated monitoring network; the upper monitoring host and the remote monitoring terminal are both connected to the integrated monitoring network, and the upper monitoring host is also connected to an alarm module; each regional control unit is connected to a data acquisition module, a fan, a water pump and a power supply module, and each power supply module provides power for the corresponding regional control unit; the data acquisition module includes an SF6 gas leakage detection unit, a harmful gas detection unit, an air oxygen content detection unit, a temperature detection unit, a humidity detection unit and a water level detection unit; the SF6 gas leakage detection unit is used to detect whether there is SF6 gas in the power tunnel The harmful gas detection unit is used to detect whether there are carbon monoxide and hydrogen sulfide harmful gases and the content of harmful gases in the power tunnel. The air oxygen content detection unit is used to detect the oxygen content in the air in the power tunnel. The temperature detection unit, the humidity detection unit and the water level detection unit detect the temperature, humidity and water level in the power tunnel respectively. The SF6 gas leakage detection unit, the harmful gas detection unit, the air oxygen content detection unit, the temperature detection unit, the humidity detection unit and the water level detection unit upload the detected power tunnel environment information to the upper monitoring host through the comprehensive monitoring network. The upper monitoring host displays the detected power tunnel environment information in real time and determines whether the relevant information is within the set range. If it exceeds the set range, an alarm is issued through the alarm device, and a control instruction is issued to the regional control unit through the comprehensive monitoring network and the optical fiber ring network. The regional control unit starts the fan or water pump to realize ventilation or drainage in the power tunnel.

[0006] Furthermore, the power supply module is a UPS uninterruptible power supply near the regional control unit.

[0007] Furthermore, each regional control unit is connected to a GPS locator.

[0008] Furthermore, when the SF6 gas leakage detection unit detects the presence of SF6 gas leakage in the power tunnel, the upper monitoring host displays the detected SF6 gas leakage and the location information of the corresponding area control unit in real time, issues an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to achieve ventilation in the corresponding area of ​​the power tunnel.

[0009] Furthermore, when the harmful gas detection unit detects that the content of carbon monoxide and hydrogen sulfide harmful gases in the power tunnel exceeds the set value, the upper monitoring host displays the detected carbon monoxide and hydrogen sulfide harmful gas content and the location information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to achieve ventilation in the corresponding area of ​​the power tunnel.

[0010] Furthermore, when the air oxygen content detection unit detects that the oxygen content in the air in the power tunnel is lower than the set value, the upper monitoring host displays the detected oxygen content in the air in the power tunnel and the position information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to achieve ventilation in the corresponding area of ​​the power tunnel.

[0011] Furthermore, when the temperature detection unit detects that the temperature in the power tunnel is higher than the set value, the upper monitoring host displays the detected temperature value in the power tunnel and the location information of the corresponding area control unit in real time, issues an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to blow air to reduce the temperature of the corresponding area in the power tunnel.

[0012] Furthermore, when the humidity detection unit detects that the humidity in the power tunnel is higher than the set value, the upper monitoring host displays the detected humidity value in the power tunnel and the location information of the corresponding area control unit in real time, issues an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to blow air to reduce the humidity in the corresponding area of ​​the power tunnel.

[0013] Furthermore, when the water level detection unit detects that the water level in the power tunnel is higher than the set value, the upper monitoring host displays the detected water level value in the power tunnel and the location information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit starts the corresponding water pump and fan for drainage and ventilation to reduce the water level in the corresponding area of ​​the power tunnel as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the structural composition of an environmental monitoring system for a power tunnel. DETAILED DESCRIPTION

[0015] The specific implementation of an environmental monitoring system for a power tunnel of the present invention is described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, the environmental monitoring system for power tunnels of the present invention comprises an upper monitoring host, a remote monitoring terminal, an integrated monitoring network, an optical fiber ring network, a plurality of network switches and a plurality of regional control units, each of which is connected to a regional control unit; the network switches are interconnected through an optical fiber ring network and are ultimately connected to the integrated monitoring network; the upper monitoring host and the remote monitoring terminal are both connected to the integrated monitoring network, and the upper monitoring host is also connected to an alarm module; each regional control unit is connected to a data acquisition module, a fan, a water pump and a power supply module, and each power supply module provides power for the corresponding regional control unit; the data acquisition module comprises an SF6 gas leakage detection unit, a harmful gas detection unit, an air oxygen content detection unit, a temperature detection unit, a humidity detection unit and a water level detection unit; the SF6 gas leakage detection unit is used to detect whether there is SF6 gas leakage in the power tunnel, and the harmful gas The gas detection unit is used to detect whether there are harmful gases such as carbon monoxide and hydrogen sulfide in the power tunnel and the content of harmful gases. The air oxygen content detection unit is used to detect the oxygen content in the air in the power tunnel. The temperature detection unit, the humidity detection unit and the water level detection unit detect the temperature, humidity and water level in the power tunnel respectively. The SF6 gas leakage detection unit, the harmful gas detection unit, the air oxygen content detection unit, the temperature detection unit, the humidity detection unit and the water level detection unit upload the detected power tunnel environment information to the upper monitoring host through the comprehensive monitoring network. The upper monitoring host displays the detected power tunnel environment information in real time and determines whether the relevant information is within the set range. If it exceeds the set range, an alarm is issued through the alarm device, and a control instruction is issued to the regional control unit through the comprehensive monitoring network and the optical fiber ring network. The regional control unit starts the fan or water pump to realize ventilation or drainage in the power tunnel.

[0017] The power supply module is a UPS uninterruptible power supply near the regional control unit. Each regional control unit is connected to a GPS locator.

[0018] When the SF6 gas leakage detection unit detects SF6 gas leakage in the power tunnel, the upper monitoring host displays the detected SF6 gas leakage and the location information of the corresponding area control unit in real time, issues an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to achieve ventilation in the corresponding area of ​​the power tunnel.

[0019] When the harmful gas detection unit detects that the content of carbon monoxide and hydrogen sulfide harmful gases in the power tunnel exceeds the set value, the upper monitoring host displays the detected carbon monoxide and hydrogen sulfide harmful gas content and the location information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to realize ventilation in the corresponding area of ​​the power tunnel.

[0020] When the air oxygen content detection unit detects that the oxygen content in the air in the power tunnel is lower than the set value, the upper monitoring host displays the detected oxygen content in the air in the power tunnel and the position information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to realize ventilation in the corresponding area of ​​the power tunnel.

[0021] When the temperature detection unit detects that the temperature in the power tunnel is higher than the set value, the upper monitoring host displays the detected temperature value in the power tunnel and the location information of the corresponding area control unit in real time, issues an alarm through the alarm device, and issues a control instruction to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to blow air to reduce the temperature of the corresponding area in the power tunnel.

[0022] When the humidity detection unit detects that the humidity in the power tunnel is higher than the set value, the upper monitoring host displays the detected humidity value in the power tunnel and the location information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues a control instruction to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to blow air to reduce the humidity in the corresponding area of ​​the power tunnel.

[0023] When the water level detection unit detects that the water level in the power tunnel is higher than the set value, the upper monitoring host displays the detected water level value in the power tunnel and the position information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit starts the corresponding water pump and fan for drainage and ventilation to reduce the water level in the corresponding area of ​​the power tunnel as soon as possible.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention. A person skilled in the art should understand that the specific implementation of the present invention can be modified or replaced by equivalents, but these modifications or changes are within the scope of protection of the pending claims.

Claims

1. An environmental monitoring system for a power tunnel, characterized in that: The environmental monitoring system for power tunnels includes an upper monitoring host, a remote monitoring terminal, an integrated monitoring network, an optical fiber ring network, multiple network switches and multiple regional control units, each of which is connected to a regional control unit; the network switches are interconnected through an optical fiber ring network and are ultimately connected to the integrated monitoring network; the upper monitoring host and the remote monitoring terminal are both connected to the integrated monitoring network, and the upper monitoring host is also connected to an alarm module; each regional control unit is connected to a data acquisition module, a fan, a water pump and a power supply module, and each power supply module provides power for the corresponding regional control unit; the data acquisition module includes an SF6 gas leakage detection unit, a harmful gas detection unit, an air oxygen content detection unit, a temperature detection unit, a humidity detection unit and a water level detection unit; The SF6 gas leakage detection unit is used to detect whether there is SF6 gas leakage in the power tunnel, the harmful gas detection unit is used to detect whether there are carbon monoxide and hydrogen sulfide harmful gases in the power tunnel and the content of harmful gases, the air oxygen content detection unit is used to detect the oxygen content in the air in the power tunnel, and the temperature detection unit, the humidity detection unit and the water level detection unit detect the temperature, humidity and water level in the power tunnel respectively; the SF6 gas leakage detection unit, the harmful gas detection unit, the air oxygen content detection unit, the temperature detection unit, the humidity detection unit and the water level detection unit upload the detected power tunnel environment information to the upper monitoring host through the comprehensive monitoring network, and the upper monitoring host displays the detected power tunnel environment information in real time, and determines whether the relevant information is within the set range. If it exceeds the set range, an alarm is issued through the alarm device, and a control instruction is issued to the regional control unit through the comprehensive monitoring network and the optical fiber ring network, and the regional control unit turns on the fan or water pump to realize ventilation or drainage in the power tunnel; The power supply module is a UPS uninterruptible power supply near the regional control unit; each regional control unit is connected to a GPS locator; when the SF6 gas leakage detection unit detects SF6 gas leakage in the power tunnel, the upper monitoring host displays the detected SF6 gas leakage and the location information of the corresponding regional control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding regional control unit through the comprehensive monitoring network and the optical fiber ring network, and the corresponding regional control unit turns on the corresponding fan to realize ventilation in the corresponding area of ​​the power tunnel.

2. The environmental monitoring system for a power tunnel according to claim 1, characterized in that: When the harmful gas detection unit detects that the content of carbon monoxide and hydrogen sulfide harmful gases in the power tunnel exceeds the set value, the upper monitoring host displays the detected carbon monoxide and hydrogen sulfide harmful gas content and the location information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to realize ventilation in the corresponding area of ​​the power tunnel.

3. The environmental monitoring system for a power tunnel according to claim 1, characterized in that: When the air oxygen content detection unit detects that the oxygen content in the air in the power tunnel is lower than the set value, the upper monitoring host displays the detected oxygen content in the air in the power tunnel and the position information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to realize ventilation in the corresponding area of ​​the power tunnel.

4. The environmental monitoring system for a power tunnel according to claim 1, characterized in that: When the temperature detection unit detects that the temperature in the power tunnel is higher than the set value, the upper monitoring host displays the detected temperature value in the power tunnel and the location information of the corresponding area control unit in real time, issues an alarm through the alarm device, and issues a control instruction to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to blow air to reduce the temperature of the corresponding area in the power tunnel.

5. The environmental monitoring system for a power tunnel according to claim 1, characterized in that: When the humidity detection unit detects that the humidity in the power tunnel is higher than the set value, the upper monitoring host displays the detected humidity value in the power tunnel and the location information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues a control instruction to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit turns on the corresponding fan to blow air to reduce the humidity in the corresponding area of ​​the power tunnel.

6. The environmental monitoring system for a power tunnel according to claim 1, characterized in that: When the water level detection unit detects that the water level in the power tunnel is higher than the set value, the upper monitoring host displays the detected water level value in the power tunnel and the position information of the corresponding area control unit in real time, sends out an alarm through the alarm device, and issues control instructions to the corresponding area control unit through the comprehensive monitoring network and the optical fiber ring network. The corresponding area control unit starts the corresponding water pump and fan for drainage and ventilation to reduce the water level in the corresponding area of ​​the power tunnel as soon as possible.

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