SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an online monitoring management system of current conversion station sulfur hexafluoride gas density, this system use the computer as the production process automation monitoring system of basis, and it can carry out real-time supervision to the operation equipment at scene, realizes each item function such as data acquisition, measurement, signal warning, utilizes upper computer processing system and network communication to realize online failure prediction to and the prevention of incident.
The technical scheme of the utility model:
an on-line monitoring and managing system for sulfur hexafluoride gas density of a converter station comprises a digital detector, an on-site monitoring host, an Ethernet switch and a client computer,
the digital detector is arranged in the converter station and used for detecting sulfur hexafluoride gas of each sulfur hexafluoride device and transmitting the detected sulfur hexafluoride gas data to the on-site monitoring host through a data line;
the field monitoring host is connected with the digital detector through a data line and used for receiving and storing sulfur hexafluoride gas data detected by all the digital detectors in the converter station;
the Ethernet switch is connected with the field monitoring host and the client computer through network cables and is used for transmitting sulfur hexafluoride gas data received and stored by the field monitoring host to the client computer;
the client computer realizes real-time calling of data in the field monitoring host through the Ethernet switch, so that real-time monitoring of sulfur hexafluoride gas in the converter station is achieved.
And the field monitoring host computer is communicated with the digital detector through an RS485 bus.
The on-site monitoring host computer is in communication connection with the Ethernet switch through an RJ45 interface.
The on-site monitoring host is also internally provided with a central processing unit, a power supply module, an RS485 module, a storage hard disk and an RJ45 module,
the central processing unit is connected with the power supply module, the RS485 module, the storage hard disk and the RJ45 module through a peripheral circuit;
the power module is connected with an external commercial power and converts the external commercial power into a 24V direct current power supply to supply power to the central processing unit;
the RS485 module is communicated with the digital detector and the field monitoring host;
the storage hard disk is used for storing sulfur hexafluoride gas data collected by the digital detector;
the RJ45 module realizes the communication connection between the field monitoring host and the Ethernet switch.
And the on-site monitoring host is also provided with a wireless communication module, and the wireless communication module realizes communication with the mobile terminal.
The central processor adopts an Intel core 6th7thGen processor.
The storage hard disk adopts a Seagate ST2000 hard disk, and the RS485 module adopts an MAX485 chip.
The digital detector employs an FGD2-A-SF6 gas detector.
The Ethernet switch adopts an S1700-16G switch.
The client computer comprises a display and a man-machine interaction device.
Compared with the prior art, the beneficial effects of the utility model are that: the SF6 gas density is detected in real time, real-time monitoring data can be displayed locally through a network page, large-capacity data storage is realized, historical data query is better supported, external signal input and linkage output control functions are provided, state information input and dynamic information input of electrical equipment are provided, and online fault prediction and safety accident prevention are realized by utilizing an upper computer processing system and network communication.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
an on-line monitoring and managing system for sulfur hexafluoride gas density of a converter station comprises a digital detector 1, an on-site monitoring host 2, an Ethernet switch 3 and a client computer 4,
the digital detector 1 is arranged in the converter station and used for detecting sulfur hexafluoride gas of each sulfur hexafluoride device and transmitting the detected sulfur hexafluoride gas data to the on-site monitoring host 2 through a data line;
the on-site monitoring host 2 is connected with the digital detector 1 through a data line and is used for receiving and storing sulfur hexafluoride gas data detected by all the digital detectors 1 in the converter station;
the Ethernet switch 3 is connected with the on-site monitoring host 2 and the client computer 4 through network cables and is used for transmitting sulfur hexafluoride gas data received and stored by the on-site monitoring host 2 to the client computer 4;
the client computer 4 realizes real-time calling of data in the field monitoring host 2 through the Ethernet switch 3, so that real-time monitoring of sulfur hexafluoride gas in the converter station is achieved.
The field monitoring host 2 and the digital detector 1 are communicated through an RS485 bus.
The field monitoring host 2 and the ethernet switch 3 are connected in communication through an RJ45 interface.
The on-site monitoring host 2 is also internally provided with a central processing unit 20, a power supply module 21, an RS485 module 22, a storage hard disk 23 and an RJ45 module 24,
the central processor 20 is connected with the power module 21, the RS485 module 22, the hard storage disk 23 and the RJ45 module 24 through a peripheral circuit;
the power module 21 is connected with an external commercial power and converts the external commercial power into a 24V direct current power supply to supply power to the central processing unit 20;
the RS485 module 22 is communicated with the digital detector 1 and the field monitoring host 2;
the storage hard disk 23 is used for storing sulfur hexafluoride gas data collected by the digital detector 1;
the RJ45 module 24 enables the communication connection between the site monitoring host 2 and the ethernet switch 3.
The on-site monitoring host 2 is also provided with a wireless communication module 25, and the wireless communication module 25 realizes communication with the mobile terminal.
The central processor 20 is an Intel core 6th7thGen processor.
The storage hard disk 23 is a Seagate ST2000 hard disk, and the RS485 module 22 is an MAX485 chip.
The digital detector 1 employs an FGD2-A-SF6 gas detector.
The ethernet switch 3 employs S1700-16G switches.
The client computer 4 comprises a display and a human-computer interaction device.
The utility model discloses an on the basis, according to required function, can also carry out following technique and expand:
1) development of sulfur hexafluoride density controller with temperature compensation function
The SF6 gas pressure is correspondingly changed due to the change of the environmental temperature, the drift of the display numerical value is caused by adopting a common sulfur hexafluoride density controller, the controller is required to have the temperature compensation function at the moment, the controller can give an alarm when the SF6 gas micro-leakage causes the change of the gas density, and an alarm signal is sent.
2) Development of data remote transmission communication system
The communication between the upper computer and the field density controller is realized through the RS485 bus, the field data is accurately and instantly obtained, and corresponding countermeasures are made according to the numerical conditions. The system structure is based on a B/S (browser/server) mode, and the inquiry management of remote data can be realized by any computer in a network through user authority.
3) Data analysis and alarm of online monitoring platform
SF6 equipment in the converter station is numerous, and the online monitoring system has large data processing capacity and large-capacity data storage function and supports historical data query; the density change curve of SF6 and the leakage trend pre-alarm can be drawn through real-time data. Besides the on-site alarm reminding, the SF6 equipment pressure abnormity can also alarm in real time on an on-line monitoring platform of a control room. In addition, the system can also expand the wireless alarm function of the short message, and send the online monitoring data information and the alarm information to the mobile phone of the staff in a short message mode.
The utility model discloses an online monitoring management system of converter station sulfur hexafluoride gas density, for reducing the potential safety hazard and improving work efficiency, solve the inconvenient tour of converter station sulfur hexafluoride equipment air chamber pressure and can't carry out the problem of the real-time online monitoring of SF6 pressure on OWS, develop the online monitoring management system of converter station sulfur hexafluoride gas density. On one hand, the on-site operation equipment is monitored in real time, various functions such as data acquisition, measurement, signal alarm and the like are realized, and an upper computer processing system and network communication are utilized to realize online fault prediction and safety accident prevention. On the other hand, work tasks of operators in the station are reduced, the automation degree of equipment in the station is improved, and the production efficiency is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.