Steam turbine health state data acquisition device

Abstract

The invention discloses a steam turbine health state data acquisition device, which comprises a plurality of groups of data acquisition cards and sensors, a DO card, an execution structure and an upper computer; the sensors are mounted on the turbine to monitor the physical quantity change of the turbine in real time; the sensor output ends are connected with the data acquisition cards; the plurality of groups of data acquisition cards are in data connection with the upper computer through an IO bus, a decentralized processing unit is arranged on the IO bus, and the decentralized processing unit coordinates the IO bus to work orderly; the DO card is connected to the IO bus, and the DO card controls the steam turbine through the execution mechanism. The sensor types comprise a vibration sensor, a shaft displacement sensor and a key / phase frequency acquisition module. Each data acquisition card comprises a sensor signal acquisition circuit, a voltage conversion circuit, a single-chip microcomputer minimum system, an external CPU board and a data acquisition card upper computer. The working process of the steam turbine is comprehensively monitored, and the working reliability and safety of the steam turbine are improved.

Description

technical field [0001] The invention belongs to the technical field of steam turbine testing, and in particular relates to a steam turbine health state data acquisition device. Background technique [0002] The steam turbine is a key component in the power plant, and it is of great practical significance to monitor its health status in real time and make early warnings in time. The steam turbine health status safety monitoring system can urgently interrupt the steam turbine through the switch output module when necessary, to ensure the safety of equipment and power plant personnel, and to prolong the service life of the steam turbine. To complete the real-time monitoring of the health status of steam turbine mechanical equipment, a set of accurate and reliable data acquisition devices is required. Only by obtaining as much steam turbine operating status data as possible can it reflect the health status of steam turbine equipment more completely and truly. Most of the steam ...

AI Technical Summary

Problems solved by technology

Most of the steam turbine state data acquisition devices currently on the market are complex in structure, high in cost, and can collect limited steam turbine state data, which cannot fully reflect the current operating state of the steam turbine

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