JPS62276607A - Plant operation supporting device - Google Patents

Abstract

PURPOSE:To reduce the load of an operator by providing the titled device with 1st-3rd storage devices and processors, and at the time of discriminating an abnormal apparatus, etc., displaying the setting position of the abnormal apparatus, etc., in a building and its environment. CONSTITUTION:The plant operation supporting device such as a boiling water type atomic power plant is provided with a signal input device 11 for inputting a process value measured by a detector, the 1st-3rd storage devices 12, 14, 16 and 1st-3rd processors 13, 15, 17 and a data input device 18 and a display device 19 are connected to the 3rd processor 17. Data as a rule correlating the signal abnormality of the detector with the cause of the failure are stored in the 1st storage device 12 and data indicating the setting positions of the detector, the control device, etc., and their environment are stored in the 2nd storage device 14. If abnormality is generated at the time of plant operation, the setting position of the abnormal apparatus in the building and its environment can be displayed on a display device 19 in addition to the cause of the abnormality and the name of the apparatus.

Description

[Detailed description of the invention] 3. Detailed description of the invention [Purpose of the invention] (Industrial application field) The present invention relates to a plant operation support device.

(Conventional technology) For example, in the case of a complex process plant such as a nuclear power plant, the number of devices that make up the plant is huge, so if an abnormality occurs in some of the devices, it is easy to repair it. isn't it. If such a situation actually occurs, the following operations ω to ② will be required. That is, ■ Estimating the cause of the abnormality from the measured process data.

■ Consider the impact of the cause of the abnormality on the entire plant and the possibility of repairing the abnormal equipment, and make decisions regarding plant operation based on this.

■ If it is possible to repair the abnormal device, repair it.

Conventionally, diagnostic systems using computer technology have been developed for the purpose of diagnosing plant abnormalities, and by using this,
Part of ■ and ■ in the above items are supported.

(Problem to be solved by the invention) However, in the conventional system, although it is possible to derive the name of the equipment that caused the abnormality and the corresponding operation, it is not possible to determine the location of the equipment in the plant. In addition, because the ability to interact with plant operators was limited,1 for example, even if it was relatively easy to repair abnormal equipment, the system could not provide information such as whether the Because this could not be taken into account, there was a problem with the appropriateness of the driving method guide.

The present invention has been made in response to the above-mentioned circumstances, and its purpose is to provide a plant operation support device that supports plant operation using a wider range of information.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a detector that measures the process amount of a plant, an input device that inputs the signal of the detector, and an input device that inputs the input process data. a first storage device that stores data necessary for diagnosing the plant; and a first processing device that estimates abnormal equipment in the plant using the input signal and the data stored in the storage device. a second storage device that stores the installation location of the estimated abnormal equipment in the plant and its environment; a second processing device that retrieves information regarding the abnormal equipment from the second storage device; a third storage device that stores data regarding the method; a third processing device that derives a plant operating method using the process data, plant operator input, and data of the third storage device;
The present invention relates to a plant operation support device that includes a display device that displays data from the third processing device, and an input device that inputs data to the third processing device.

(Function) Therefore, since the present invention is configured as described above, if an abnormality occurs during plant operation.

In addition to identifying the cause of the abnormality and abnormal equipment, it can also display the installation location and environment within the building, reducing the burden on the operator and speeding up response, providing support to plant operators. It's useful.

(Example) Hereinafter, a case in which the present invention is applied to a reactor coolant purification system of a boiling water nuclear power plant will be described with reference to the drawings.

FIG. 4 shows a schematic system diagram of a nuclear reactor coolant purification system to which the present invention is applied. Note that a boiling water reactor is equipped with a reactor coolant purification system to purify reactor water, and is always in operation during reactor operation.

In the figure, water from a pressure vessel 1 is lowered in temperature by a reactor coolant purification system pump 2 through a regenerative heat exchanger 3 and a non-regenerative heat exchanger 4, and is sent to a purification device 5. The water leaving the purifier 5 passes through the regenerative heat exchanger 3, is heated by the water from the reactor pressure vessel 1, is sent to the water supply pipe 9, and returns to the reactor pressure vessel 1 from here.

By the way, the non-regenerative heat exchanger 4 is cooled by a reactor auxiliary equipment cooling system (not shown). 10 indicates piping of the reactor auxiliary equipment cooling system. Here, in order to keep the temperature of the water entering the purification bags 2 and 5 constant.

This is done by controlling the AM of water flowing through the piping 10 of the reactor auxiliary cooling system, and for this purpose a thermometer 6 is provided in front of the purification device 5, and the signal from this thermometer 6 is sent to the control device 7.
The control device 7 controls the flow rate r! installed in the reactor auxiliary cooling system. 14 is configured to control the opening degree of the regulating valve 8.

If the temperature of the water flowing into the purification device 5 cannot be kept constant, the cause may be a malfunction in the thermometer 6, the control device 7, the flow rate adjustment valve 8, or the reactor auxiliary cooling system (not shown). This is thought to be the cause. Let's not consider the last possibility here.

FIG. 1 shows a block diagram of an embodiment of the present invention, in which numeral 11 denotes a signal input device, into which plant process data including signals from the thermometer 6 are input. The first memory bag @12 stores data as a rule for associating an abnormal signal of the hygrometer 6 with a cause of failure. For example, "IF Thermometer 6 reading is abnormal.

THEN Thermometer 6 failure or control device 7 failure or flow rate adjustment valve 8 failure" is the rule. Processing device 13
processes the above rules and the data from the signal input bag [11], and when an abnormality occurs in the reading of thermometer 6, "thermometer 6
Failure” or [control bagffl! 7 failure" or "Flow rate adjustment valve 8 failure."

Next, the second storage device i14 stores a thermometer 6. Control device 7. Data regarding the location and environment where the flow rate regulating valve 8 is installed is stored. The environment includes, for example, the radiation dose, temperature, oxygen concentration, etc. at the site. Processing device f
! 15 inputs the data of equipment that may be in trouble from the processing device 13, searches for data on the installation location and environment of the above-mentioned equipment from the storage device 14, and returns the data to the processing device! Send to 17th.

The processing device 17 displays the input data from the processing device 15 on the display device 19 and provides it to the operator. The display device 19 is capable of displaying graphics as well as characters, and displays a screen 20 as shown in FIG. This screen 20 shows the actual arrangement of equipment, and in particular clearly indicates the location of equipment with a possibility of failure using arrows on the screen. In response to this display, plant operators will investigate the potentially faulty equipment, determine which equipment is faulty, and repair it if possible. By the way, if the repair time is likely to be long to a certain extent, the question becomes whether or not the plant operation can be maintained during that time. Send it to 17. Processing bag [
17 searches the data regarding the operation rules stored in the storage device 16 based on the plant process data sent from the signal input bag @11 and the operator's input described above, and determines the plant operation method; The operating method, which is sent to the display device 19 as an operating guide, is, for example, stopping the plant operation, reducing the output, etc. 6 FIG. 3 shows the processing flow of the present embodiment described above.

First, in the first step 31, data from the plant is input to the processing device 13 from the input device 11, and in the second step 32, it is determined whether or not an abnormality has occurred based on this input data. Returning to step 31, if the answer is Yes, the next third step 33 searches the data from the storage device 12 to infer the cause of the abnormality.
In step 34, the result is sent to the processing device 13, and the process returns to the first step 31 and performs each of the above steps 31 to 34.
In the 6th fifth step 35 where the process is repeated, the processing bag Tl115
is a processing bag! ! The process is stopped until an input is received from step 13, but if there is an input, the storage device 14 is searched for data related to the input data in a sixth step 36, and the result is sent to the processing device 15 in a seventh step 37. Then, the process returns to the fifth step 35.

It is stopped until there is an input from the processing device 13. Furthermore, in the next eighth step 38, the processing device 17
Alternatively, the process stops until there is an input from the input device 18, and if there is an input, the type of input is determined in a ninth step 39. If the input is from the processing device 15, then in a tenth step 40, the input result is displayed on the display device t!
19 and returns to the eighth step 38.

If the input is from the input device 18 in the ninth step 39, the signal input device 11 and the input bag are input in the next eleventh step 41! ! Based on the data in step 18, the storage device 16 is searched to derive an operating method, and in a twelfth step 42, the result is sent to the display device 19, and the process returns to the eighth step 38.

The process flow described above is continued while data from the plant is input.

Here, for convenience of explanation, the processing device and the storage device are divided into a plurality of units, but the number of units in each device is not a physical unit but a logical unit. Therefore, the three processing units described above may be three tasks that are processed in parallel on a single computer, for example.

〔Effect of the invention〕

As explained above, according to the present invention, when an abnormality occurs during plant operation, it not only determines the name of the equipment causing the abnormality, as in conventional support devices, but also determines the installation location and environment within the building. This has the effect of making it possible for the operator to respond more quickly and greatly reducing the burden on the operator.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of an embodiment of the present invention, FIG. 2 is a diagram showing one screen displayed on the display device of FIG. 1, and FIG. 3 is for explaining the processing flow of this embodiment. FIG. 4 is a schematic system diagram of a reactor coolant purification system to which the present invention is applied. 11, 18...Input device 12, 14.16...Storage device 13, 15.17...Processing device 19...Display device (8733) Agent Patent attorney Yoshiaki Inomata (and 1 other person) Figure 2

Claims (1)

[Claims] A detector that measures the process amount of the plant, an input device that inputs signals from the detector, and a first storage device that stores data necessary for diagnosing the plant based on the input process data. a first processing device that estimates abnormal equipment in the plant using the input signal and data stored in the storage device; and a second processing device that stores the installation location and environment of the estimated abnormal equipment in the plant. a storage device, a second processing device that retrieves information regarding the abnormal equipment from the second storage device, a third storage device that stores data regarding the plant operating method, and a storage device that stores information regarding the process data and the plant operator. a third processing device that derives a plant operating method using input and data in the third storage device; a display device that displays data from the third processing device; and a display device that displays data from the third processing device; 1. A plant operation support device comprising an input device for inputting.