A method for operating and managing valves in a power plant

Abstract

The invention discloses a valve operation management method for the whole plant of a power plant. Firstly, the basic data of the valves of the whole plant are collected, and the valve basic information database is completed; then, the valve information and shape information database are completed; Complete the valve status library; in the valve status library, retrieve the status data of the valve, and form the valve operation data package with the valve information data, status data and operation demand instructions, and enter the valve operation management expert system. Through the valve operation management method of the whole plant of the power plant described in the present invention, the probability and space of misoperation can be reduced to the greatest extent; early warning of valve defects can be carried out in advance, and the probability of accidents caused by valve defects can be reduced; comprehensive, Immediately and accurately grasp the working status of the valves in the whole plant, which brings great economy and convenience to the safe and stable operation of the power plant and the maintenance of valve equipment.

Description

technical field [0001] The invention belongs to the field of power generation, and in particular relates to a valve operation management method for the whole plant of a power plant. Background technique [0002] In modern society, all kinds of power plants are the foundation of modern energy industry. In various piping systems of power plants, valves play an important role as the throat of various piping. Leakage, production shutdown, and major accidents caused by valve performance, quality, and misoperation of operators have brought immeasurable losses to the normal operation of industrial production, personal safety, and property. According to relevant statistics, 1 / 3 of the major production accidents in the world every year are caused by valve accidents. Specifically, in the power industry, the economic losses caused by abnormal valve work are also considerable. It is of great significance to carry out operation management of factory valves. [0003] At the present sta...

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Problems solved by technology

[0007] 1. Hysteresis in finding valve faults: Since there is no special valve operation management system, some infrequently operated valves have problems for a long time before their faults are discovered. When they are discovered, they often cause great economic losses or a great security risk;

[0008] 2. Great hidden dangers of misoperation: For the manual doors on site, after a period of operation, the nameplates or signs that are conventionally arranged are often lost. , Misoperations often occur, and the facts also prove that at this stage, accidents caused by various misoperations of valves by domestic power plant operators still account for a large proportion of production accidents in the power industry

[0009] 3. Unable to accurately grasp the state of the valve: Since there is no special valve operation management system, it is impossible to accurately grasp the state of each valve. The operation and maintenance of the valve stays in the negative feedback mode of "finding defects - eliminating defects". For some important valves, once a defect occurs, it is easy to have serious consequences, and the existing valve operation management mode cannot achieve early warning

[0010] 4. Difficulties in valve maintenance and management. Similarly, due to the absence of a dedicated valve operation management system, during the daily operation of the power plant, some valves work in an abnormal state for a long time or perform unconventional operations for a long time, which greatly shortens the life of the valve. Causes an increase in equipment operation and maintenance costs

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