JP2550071B2 - Integrated monitoring device for power plant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a monitoring apparatus for a power plant including a plurality of power generating units.

(Prior Art) In recent years, a nuclear power plant has a plurality of power generation units and tends to be complicated and huge. Each power generation unit is equipped with a monitoring device that independently monitors each power generation unit, and each power generation unit is independently monitored and operated.

By the way, as described above, in a nuclear power plant equipped with a plurality of power generation units, it is necessary to change the operating state according to the operating states of other power generation units or monitor the power supply system of the entire plant. Therefore, the operators who operate the respective power generation units make a telephone call to inform each other of the states of the power generation units so that they can operate cooperatively.

In addition, when an abnormality occurs in the power generation unit, the operator must promptly perform a driving operation corresponding to the abnormality, but when a large number of alarms are generated, the operation to deal with it is chased. It is difficult to grasp the overall state, and in some cases, there is a possibility that a malfunction may occur and cause a serious accident.

Therefore, in order to avoid such a situation, in the nuclear power plant, a supervisor who supervises the entire plant is placed separately from the operator of the power generation unit, and the operator is technically provided when an accident occurs. A supporting organization is formed.

(Problems to be solved by the invention) However, the information of the power generation unit is provided to the general supervisor and the technical support staff by the operator of each power generation unit contacting the monitoring information by telephone. As a result, the inconvenience that the burden on the operator is heavy occurs.

The present invention has been made in order to solve the inconvenience of the related art, and an object thereof is to provide a monitoring device that can reduce the burden on the operator of the power generation unit.

[Structure of the Invention] (Means for Solving Problems) The present invention provides a data transmission path for transmitting monitoring information from each power generation unit, and monitors from the power generation unit via this data transmission path. Information is input and stored in units of power generation units, and the stored monitoring information can be appropriately displayed.

(Operation) Therefore, since the monitoring information obtained in each power generation unit can be automatically collected and can be arbitrarily displayed, the burden on the operator of each power generation unit can be significantly reduced.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a monitoring device according to an embodiment of the present invention. In this embodiment, a nuclear power plant is composed of two power generation units 1 and 2. In the figure,
The power generation units 1 and 2 are omitted except for the part of the process monitoring device directly related to the present invention.

In the figure, a transmission line 3 includes a power generation unit 1, 2 and a general monitoring unit 4 for comprehensively monitoring this nuclear power plant connected to each other,
This is for realizing high-speed data transmission between 2 and the integrated monitoring unit 4.

The transmission line 3 is a transmission station for realizing data transmission using the transmission line 3 as a node corresponding to each of the power generation units 1 and 2 and the general monitoring unit 4.
5,6,7 are arranged.

In the power generation unit 1, the process monitoring device 11 is for monitoring the operating state of the power generation unit 1,
The process input device 12 is for inputting a process amount from each part of the plant, and the terminal device 13 is for allowing an operator to monitor the state of the power generation unit 1.
The CRT display device 14 and the keyboard 15 are for the operator to perform a predetermined operation on the terminal device 13.

The terminal device 16 is for obtaining monitoring information from the integrated monitoring unit 4 via the transmission path 3, and the CRT display device 17 and the keyboard 18 are used by the operator to perform a predetermined operation on the terminal device 16. It is for doing.

The process monitoring device 11 outputs monitoring information to the transmission station 5 at an appropriate timing, and the terminal device 16 outputs operation input information from the keyboard 18 to the transmission station 5 and display information transferred from the transmission station 5. Is displayed on the CRT display device 17.

The power generation unit 2 has the same configuration as the power generation unit 1, and the process monitoring device 21, the process input device 22, the terminal devices 23 and 26, the CRT display devices 24 and 27, and the keyboards 25 and 28 are
The power generation unit 1 has the same functions as the process monitoring device 11, the process input device 12, the terminal devices 13 and 16, the CRT display devices 14 and 17, and the keyboards 15 and 18, respectively.

In the integrated monitoring unit 4, the integrated monitoring device 41 uses the power generation units 1 and 2 transmitted from the transmission station 7.
The monitoring information is stored in each of the power generation units 1 and 2 and the requested monitoring information is transmitted to the request source via the transmission station 7.

The terminal device 42 is for appropriately displaying the monitoring information accumulated in the integrated monitoring device 41, and for commanding the CRT display device 43 for displaying the monitoring information and the monitoring information to be displayed. The keyboard 44 of is attached.

An example of transmission data exchanged between the transmission stations 5, 6, and 7 via the transmission line 3 is shown in FIG.

The transmission data includes a header HD for indicating the characteristics of the transmission data and data DT.

The header HD is an output destination station number ST indicating the transmission station that should receive this transmission data, a data type DI indicating the type of data DT, a transmission output destination DA indicating the device that should finally receive the data DT, and a data DT. The transmission output source SA that indicates the device that generated

Here, 1, 2, 0 are set as the output destination station numbers ST in the transmission stations 5, 6, and 7, respectively.

The types of data DT include plant sensor signals, which are monitoring information from the plant, request signals output from the keyboards 18 and 28 attached to the terminal devices 16 and 26 to the integrated monitoring device 41, terminals from the integrated monitoring device 41. There is CRT display device display data output to the CRT display devices 17 and 27 attached to the devices 16 and 26, and 0, 1, and 2 are set as the data type DI, respectively.

Overall monitoring device 41, process monitoring device 11, process monitoring device 21, CRT display device 17, CRT display device 27, keyboard 1
8, keyboard 28 has a transmission output destination DA and a transmission output source S
As A, 0, 1, 2, 11, 12, 21, and 22 are set, respectively.

FIG. 3 shows an example of the process monitoring device 11. In addition,
The process monitoring device 21 is similarly configured.

In the figure, the process signal input unit 11a inputs the plant sensor signal as the process amount output from the process input device 12, and stores it in the plant data storage unit 11b in order of a series of preset plant sensor numbers. is there. The process input device 12 converts a process amount of an analog signal into a corresponding digital signal to form a plant sensor signal.

The operation of the process signal input unit 11a is periodically performed at high speed, so that the latest plant sensor signal is always stored in the plant data storage unit 11b.

The transmission output unit 11c sequentially reads the plant sensor signals accumulated in the plant data storage unit 11b and outputs them to the transmission station 5. This transmission output section 11
The operation of c is performed at high speed and periodically at almost the same timing as the data in the plant data storage unit 11b is updated.

In this way, when the plant sensor signal is added from the transmission output unit 11c, the transmission station 5 forms the transmission data as shown in FIG. 2 (b) and sends it to the transmission line 3.

In this case, the output destination station number ST is "0" indicating the transmission station 7 of the integrated monitoring unit 4, the data type DI is "0" representing the plant sensor signal, and the transmission output destination DA is the integrated monitoring device 41. Is set to 0, and the transmission output source SA is set to 1 that represents the process monitoring device 11. The plant sensor signal input from the transmission output unit 11c at this time is set in the data DT.

The request data input unit 11d inputs the display request information output from the terminal device 13, and notifies the display output unit 11e of the input display request information. In addition, the display request information is displayed on the CRT display device 1 by the operator operating the keyboard 15.
When the plant sensor number or the like desired to be displayed is entered in 4, it is output from the terminal device 13.

When the display request information is notified from the request data input unit 11d, the display output unit 11e reads the corresponding plant sensor signal from the plant data storage unit 11b and outputs it to the terminal device 13.

As a result, the terminal device 13 causes the CRT display device 14 to display the input plant sensor signal.

Therefore, when the operator operates the keyboard 15 and inputs the plant sensor number desired to be displayed, the desired plant sensor signal is displayed on the CRT display device 14.

In addition, when the operator operates the keyboard 18 attached to the terminal device 16 and inputs the unit number and plant sensor number of the power generation unit that the operator desires to display, the terminal device 16
The unit number and the plant sensor number are output to the transmission station 5.

As a result, the transmission station 5 forms the transmission data as shown in FIG. 2 (c) and sends it to the transmission line 3.

In this case, the output destination station number ST is “0” indicating the transmission station 7 of the overall monitoring unit 4, and the data type DI is “1” indicating a request signal, and the transmission output destination DA.
"0" representing the integrated monitoring device 41 is the transmission output source SA
"21" representing the keyboard 18 is set for each. Further, the unit number and the plant sensor number input from the terminal device 16 at this time are set in the data DT.

 FIG. 4 shows an example of the integrated monitoring device 41.

When the transmission station 7 receives the transmission data in which the output destination station number ST is set to "0", the transmission station 7 passes the transmission data to the transmission input / output unit 41a.

The transmission input / output unit 41a uses the data type DI of the transmission data.
Is “0”, the transmission output destination DA is “0”, and the transmission output source SA is “1”, the transmission data is the plant sensor transmitted from the process monitoring device 11. It is determined that it is a signal, and the transmission data is passed to the plant data input unit 41b.

The plant data input unit 41b accumulates the data DT included in the transmission data in the plant data storage unit 41c.
As a result, the same data as the plant data storage unit 11b of the process monitoring device 11 is stored in the plant data storage unit 41c.

Further, in the transmission input / output unit 41a, the data type DI of the transmission data passed from the transmission station 7 is "0", the transmission output destination DA is "0", and the transmission output source SA is "2". ", The transmission data is determined to be a plant sensor signal transmitted from the process monitoring device 21, and the transmission data is passed to the plant data input unit 41d.

The plant data input unit 41d stores the data DT included in the transmission data in the plant data storage unit 41e.
As a result, the same data as the plant data storage unit of the process monitoring device 21 is stored in the plant data storage unit 41e.

Further, when the data type DI of the transmission data passed from the transmission station 7 is “1”, the transmission input / output unit 41a indicates that the transmission data is one of the keyboards.
It is determined that the request signal is input from 17, 27, and the transmission data is passed to the keyboard data input unit 41f.

The keyboard data input unit 41f extracts the transmission output source SA and the data DT from the transmission data passed from the transmission input / output unit 41a, and the transmission display data output unit 4 via the data buffer 41g.
Notify 1h.

The transmission display data output unit 41h is a plant data storage unit corresponding to the unit number included in the notified data DT.
From 41c and 41e, the plant sensor signal corresponding to the plant sensor number is extracted and converted into data that can be displayed on the CRT display device.

Then, the display data for the CRT display device and the transmission output source S
The contents of A are output to the transmission station 7 via the transmission input / output unit 41a.

As a result, the transmission station 7 forms the transmission data shown in FIG. 2 (d) and sends it to the transmission line 3.

In this case, "1" indicating the transmission station 5 of the power generation unit 1 is set in the output destination station number ST as the data type.
“2”, which represents the display data for CRT display device, is displayed in DI.
"11" representing the CRT device 17 is set in the transmission output destination DA, and "0" representing the overall monitoring device 41 is set in the transmission output source SA. Further, the display data for the CRT display device input from the transmission input / output unit 41a at this time is set in the data DT.

The keyboard data input unit 41i inputs the display request information output from the terminal device 42, and notifies the input display request information to the display output unit 41k via the data buffer 41j. The display request information includes data for designating the power generation unit and the plant sensor signal, and the supervisor or the like operates the keyboard 44 to display the unit number and the plant sensor number desired to be displayed on the CRT display device 43. When input, it is output from the terminal device 42.

The display output unit 41k extracts the plant sensor signal corresponding to the plant sensor number from the plant data storage units 41c and 41e corresponding to the unit number included in the display request information, and converts it into data that can be displayed on the CRT display device 43. Output to the terminal device 42.

As a result, the terminal device 42 displays the input plant sensor signal on the CRT display device 43.

Therefore, when the general supervisor operates the keyboard 44 and inputs the plant sensor number desired to be displayed, the desired plant sensor signal is displayed on the CRT display device 43.

With the above configuration, in each of the power generation units 1 and 2, the plant monitoring device 11 or 21 inputs the plant sensor signal from the process input device 12 or 22 at high speed and periodically, and always accumulates the latest plant sensor signal. are doing.

At the same time, the plant monitoring devices 11 and 21 transmit the accumulated latest plant sensor signal to the transmission station.
Output to 5,6.

As a result, the transmission stations 5 and 6 are
In contrast to 1, the latest plant sensor signal is transmitted via the transmission line 3 in a state of being set in a predetermined format.

This transmission data is received by the transmission station 7 and is appropriately transferred to the integrated monitoring device 41. Therefore,
The integrated monitoring device 41 always stores the same latest plant sensor signal as that stored in the plant monitoring devices 11 and 21.

In this state, for example, when the operator of the power generation unit 1 operates the keyboard 15 of the terminal device 13 to input the plant sensor number corresponding to the plant sensor signal to be displayed, the plant sensor signal is retrieved from the plant monitoring device 11. Then, the CRT display device 14 of the terminal device 13 displays the plant sensor signal on a predetermined screen.

Further, when the operator operates the keyboard 18 of the terminal device 16 and inputs the plant sensor number corresponding to the plant sensor signal of the other power generation unit 2 to be displayed, the terminal device 16 causes the transmission station 5 to display the power generation unit number. And the plant sensor number are entered.

As a result, the transmission station 5 is controlled by the integrated monitoring device 41.
The unit number and the plant sensor number, which are requested to be displayed, are sent to the transmission line 3 in a state in which they are put together into transmission data of a predetermined format.

This transmission data is received by the transmission station 7 and transferred to the integrated monitoring device 41. Thereby, the integrated monitoring device 41 takes out the plant sensor signal corresponding to the requested plant sensor number of the requested unit and notifies the transmission station 7 to transmit it to the request source.

As a result, the transmission station 7 receives the CR of the terminal device 16.
The display data for the T display device 17 is sent to the transmission line 3 in a state where the display data is collected in a predetermined format.

This transmission data is received by the transmission station 5 and transferred to the terminal device 16. As a result, the plant sensor signal of the power generation unit requested by the operator is displayed on a predetermined screen.

In addition, when the general supervisor or the technical support staff operates the keyboard 44 of the terminal device 42 of the general supervisory unit 4 to input the unit number of the power generation unit to be displayed and the plant sensor number corresponding to the plant sensor signal, the general supervisory person The corresponding plant sensor signal is extracted from the device 41, and the CRT display device 43 of the terminal device 42 displays the plant sensor signal on a predetermined screen.

In this way, the general supervisor and the technical support staff can easily monitor the desired plant sensor signal of the desired power generation unit and consider the countermeasures in the event of an emergency such as an accident. The materials can be obtained quickly and accurately.

As a result, it is possible to give an appropriate driving instruction to the operator of each power generation unit, and it is possible to minimize the influence of the accident.

In addition, in each power generation unit 1 and 2, the plant sensor signal of the other power generation unit can be displayed and confirmed on the CRT display device 17 or 27, which greatly reduces the time and effort of cooperative operation with other power generation units. Can be reduced to

In addition, in the above-described embodiment, the nuclear power plant has two
Although the case where the power generation unit is configured by one power generation unit has been described, the present invention can be applied to a case where the nuclear power plant is configured by three or more power generation units.

[Effects of the Invention] As described above, according to the present invention, a data transmission path for transmitting monitoring information from each power generation unit is provided, and monitoring information from the power generation unit is transmitted via this data transmission path. Since the input information is stored for each power generation unit and the stored monitoring information can be appropriately displayed, the monitoring information obtained by each power generation unit can be automatically collected and can be arbitrarily displayed. Therefore, it is possible to significantly reduce the burden on the operator of each power generation unit.

[Brief description of drawings]

FIG. 1 is a block diagram showing a monitoring device according to an embodiment of the present invention, FIG. 2 (a) is a signal arrangement diagram illustrating a format of transmission data, and FIG. 2 (b) is for transmitting a plant sensor signal. FIG. 6C is a signal arrangement diagram showing an example of transmission data, FIG. 6C is a signal arrangement diagram showing an example of transmission data for transmitting a unit number and a plant sensor number, and FIG. 4 is a block diagram showing an example of a process monitoring device, and FIG. 4 is a block diagram showing an example of a general monitoring device. 1,2 ...... Power generation unit, 3 ... Transmission path, 4 ... Overall monitoring unit, 5-7 ... Transmission station, 11,21 ... Process monitoring device, 13,16,23,26,42 ... Terminal Device, 14,17,24,27,43 …… CRT display device, 15,18,25,28,44 …… Keyboard.

Claims (2)

(57) [Claims] 1. A power plant monitoring device comprising a plurality of process monitoring devices for independently monitoring and controlling a plurality of power generating units, wherein data transmission of monitoring information and request signals from the process monitoring device of each power generating unit. A monitoring information inputting means for inputting via the route, a monitoring information storing means for storing the monitoring information input by the monitoring information inputting means for each power generation unit, and the monitoring information stored in the monitoring information storing means. Monitoring information display means for displaying and monitoring information for reading the monitoring information of another power generation unit in response to a request signal from the process monitoring device from the monitoring information storage means and outputting it to the process monitoring device via the data transmission path. An integrated monitoring device for a power plant, comprising: an output unit. 2. The process monitoring device of each power generation unit displays the monitoring information of another power generation unit in response to a request signal from the process monitoring device input from the monitoring information output means via the data transmission path. The integrated monitoring device for a power plant according to claim 1, further comprising: