JPS62171009A - Plant abnormality supervisory device - Google Patents

Abstract

PURPOSE:To lighten the burden imposed on an operator and to quickly cope with the abnormality of a plant by automatically retrieving and displaying detailed information on a device decided to be abnormal by making diagnosis of a detection output and its process amount. CONSTITUTION:If the output of a process amount detection part 1a detecting the discharge pressure of a pump in the middle of piping drops abnormally, a diagnosis processing part 3 compares and examines related information such as the output of an apparatus action state detection part 2a detecting that the breaker of a pump drive motor is opened or closed and the output of a process amount detection part 1b detecting the number of revolution of a pump positioned at the upstream of said part 1a. If the operation is decided to be abnormal, the result is outputted to an information retrieval part 5. It retrieves a pump related piping installation diagram out of optical disk picture information included in an information recording part 4, and outputs a system number, a device number, etc., as keywords to a retrieval result recording part 6. A display control part 8 refers to the system number of the recording part 6, and automatically outputs the piping installation diagram recorded in the recording part 4 on the CRT of a display part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an abnormality monitoring device in a plant, and particularly to an improvement of an abnormality monitoring device suitable for a plant safety monitoring system 11.

[Technical background of the invention]

In a plant safety monitoring system, there are an extremely large number of monitoring items, and it is practically impossible to directly monitor these items because it increases the burden on operators. Therefore, the output signals from the process amount detectors and equipment operating state detectors located throughout the plant are collected in the monitoring room, processed using computers, and sent to the CR'r (cathode ray tube) or various indicators. The operating status of processes and equipment is displayed to improve plant monitoring efficiency and to quickly respond to abnormal situations.

[Problems with background technology]

In such conventional abnormality monitoring equipment for plants, monitoring items are organized and displayed centrally, but the displayed monitoring items are only those necessary to confirm that each process is operating normally. However, if an abnormal situation occurs, other detailed process information is required.

Therefore, if abnormality 1 [condition] occurs, the operator must
In addition to referring to the RT, there are piping and instrumentation diagrams showing in detail the installation status of process quantity detection parts such as 811 meters, and the positional relationships of valves and pumps, as well as operational procedures that describe in detail procedures for dealing with abnormalities. It is necessary to take out books one by one and flip through them to find the required section, which makes the work extremely complicated, lowers the efficiency of plant monitoring, and has the disadvantage that it is insufficient to deal with abnormal situations.

[Purpose of the invention]

The present invention was made to solve these conventional drawbacks, and when an abnormality occurs in a plant, detailed information of the abnormal part, that is, a piping and instrumentation diagram, and operation information to deal with the abnormality are provided. The purpose of the present invention is to provide a highly efficient abnormality monitoring device that can automatically display procedure manuals, etc.

[Summary of the invention]

In other words, the present invention includes a plurality of process quantity detection units that detect the process and sensitivity of a plant and output signals according to the detected values, and detect the operational status of equipment installed in the plant and output signals according to the status. a diagnostic processing unit that performs diagnostic processing on the output signals from these process quantity detection units and equipment operation status detection units to identify and output abnormal signals; an information recording section that records detailed information related to the operating state detection section; an information retrieval section that searches the information recording section for related information based on the output signal from the diagnostic processing section and outputs the results; a search result recording unit that sequentially records the output of
A plant comprising: a display section that displays information recorded in an information recording section; and a display control section that controls information displayed on the display section according to the recorded content of the search result recording section. This is an abnormality monitoring device that reduces the burden on operators and enables prompt response to plant abnormalities.

[Embodiments of the invention]

The details of the present invention will be explained below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the plant abnormality monitoring device of the present invention.

The process quantity detection section In-1a detects process quantities such as temperature, pressure, flow rate, and liquid level height of each system part of the plant, and outputs a signal according to the detected value. Further, the device operating state detection units 2a to 2n detect the open/closed state of a valve, the closed state of a circuit breaker, etc., and output a signal according to the state.

The outputs of the process amount detection section 1a"In and the device operating state detection sections 2a to 2n are connected to a diagnostic processing section 3. This diagnosis processing section 3 detects the normal value of the output signal of the process amount detection section 1a"In. In addition to monitoring the deviation from the deviation and determining that the process quantity is abnormal when the deviation is excessive, mutual comparison of related process quantities and matching with the output signals of the equipment operating state detection units 28 to 2n are performed. It monitors the performance, diagnoses abnormalities in processes and equipment operating conditions, and outputs the results to the information retrieval unit 5.

The information search unit 5 searches the information recording unit 4 for detailed information related to abnormal process failures and equipment exhibiting abnormal operating conditions input from the diagnostic processing unit 3, and records the search results. Appears to Department 6. Here, the information recording section 4
is, for example, an optical disk image information file device, in which detailed information necessary for plant operation, such as a plant layout, piping and instrumentation diagrams, operating procedures, safety regulations, etc., is recorded. Keywords for distinguishing detailed information are recorded in the search result recording unit 6 in order of occurrence time.

The display control unit 8 refers to all the keywords recorded in the search result recording unit 6, selects the most important information at the present time according to the predetermined importance classification, and stores the information in the information recording unit 4 according to the result. The recorded detailed information is displayed on the display section 7.
to be displayed.

The display section 7 includes a CRT or projector device, an attached keyboard, and the like.

The detailed information recorded in the information recording section 4 is displayed according to a command from the display control section 8. Furthermore, the display section 7.

It has the ability to update the displayed detailed information using the attached keyboard.

The plan 1 to abnormality monitoring device of the present invention configured as described above is 1. For example, when the output of the process amount detection unit 1a that detects the discharge pressure of the pump in the middle of the piping drops abnormally, the system detects the abnormality of the pump located upstream. The diagnostic processing unit 3 compares and examines related information such as the output of the process quantity detection unit tb that detects the rotation speed and the output of the device operating state detection unit 2a that detects the open/closed state of the circuit breaker of the motor that drives the pump. By monitoring the consistency, it determines whether there is an abnormality in the process amount or the equipment operating state, and outputs the result to the information search unit 5. The information search unit 5 searches for information related to the pump, such as piping and instrumentation diagrams, from the optical disc image information recorded in the information recording unit 4 based on the results of the diagnostic processing unit 3, and searches for the system number and The device number and the like are output to the search result recording section 6 as keywords. Display control section 8
refers to the system number recorded in the search result recording unit 6 and automatically outputs the piping and instrumentation diagram recorded in the information recording unit 4 to the CRT of the display unit 7.

As a result, plant operators can automatically identify abnormal locations according to the output signals of the process quantity detection units 18 to 1n and the equipment operating state detection units 28 to 2n, and Since the detailed information about the abnormality is output to the display, it becomes possible to quickly know the details of the abnormal location in response to an abnormal situation, and there is no need to search for related documents such as piping and instrumentation diagrams one by one as in the past. When the situation is eliminated, it becomes more efficient to take immediate countermeasures, and monitoring efficiency is greatly improved.

Note that if the display control signal and the search control signal are input manually from the keyboard attached to the display section 7 and this (i) is fed back to the display control section 8 and the information search section 5, arbitrary detailed information can be displayed. Is possible.

〔Effect of the invention〕

As explained below, the present invention diagnoses and processes the output signals of a plurality of process lit detection units and equipment 4III operation state detection units provided in each process and equipment of a plant, and processes that are determined to be abnormal as a result. It automatically searches and displays detailed information related to i-ma or equipment, such as layout drawings, piping and instrumentation diagrams, operating procedures and safety regulations, etc., so there is no need to search for each necessary detailed information. So,
For plant operators, monitoring efficiency has improved significantly -1-
do.

Additionally, it is no longer necessary for operators to memorize the contents of piping and instrumentation diagrams, etc., preventing erroneous operations based on uncertain memorized contents, enabling accurate processing, and improving plant safety and reliability. be able to.

[Brief explanation of drawings]

The drawing is a block diagram showing an embodiment of the plant abnormality monitoring device of the present invention. la to 1n...Process amount detection units 28 to 2n...Equipment operating state detection unit 3...Diagnosis processing unit 4...Information recording unit 5... ... Information search section 6 ... Search result recording section 7 ... Display section 8 ... Display control section Agent Patent attorney Noriyuki Noriyuki Yudo Hirofumi Mitsumata

Claims (5)

[Claims] (1) A plurality of process quantity detection units that detect the process quantity of the plant and output signals according to the values, and a plurality of process quantity detection units that detect the operating status of equipment installed in the plant and output signals according to the status. a diagnostic processing section that performs diagnostic processing on the output signals from the process amount detection section and the device operation state detection section to identify and output an abnormal signal; an information recording section that records detailed information related to the condition detection section; an information retrieval section that searches the information recording section for related information based on an output signal from the diagnostic processing section and outputs the result; and this information retrieval section. a search result recording section that sequentially records output from the search result recording section; a display section that displays the information recorded in the information recording section; and controlling the information displayed on the display section according to the recorded content of the search result recording section. What is claimed is: 1. A plant abnormality monitoring device comprising: a display controller; (2) The plant abnormality monitoring device according to claim 1, wherein the information recorded in the information recording section is a piping instrumentation diagram. (3) The plant abnormality monitoring device according to claim 1, wherein the information recorded in the information recording section is an operating procedure manual. (4) The plant abnormality monitoring device according to claim 1, wherein the information recording section includes an optical disk image information file device. (5) The display control section classifies the recorded contents of the search result recording section according to a predetermined degree of importance, and controls the contents displayed on the display section according to the results. The plant abnormality monitoring device according to item 1.