In coal-fired power plants, steam is produced by pumping highly purified water through boiler tubes. The water is heated to a high temperature and pressure, and then flows through several orifices into the steam turbine. Once past the orifice, the water pressure drops and it immediately flashes into superheated steam, which is directed toward the turbine blades at high velocity. Due to the high velocity of the superheated steam, the turbine blades start to rotate and turn the turbine shaft, which is connected to the generator through reduction gears, and thereby ultimately generates electricity.
Valve position, pressure and temperature measurements are all necessary to ensure stability in this process. A solution for this application is a setup with a potentiometer for valve position measurement, a 2-wire style pressure transmitter and a 4-wire RTD for precise temperature measurements. All three signals are connected to individual PR Electronics PR 4114 universal transmitters, which output 0-10 VDC signals to the PLC.
The 4501 display/programming front allows local readout of both input and output signal and the process calibration function in the advanced menu provides easy and precise calibration of the open and closed valve positions.
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Photoelectric eyes have always needed perfect working conditions, but in the workplace there is no such thing. Steam, water, light and dirt interfere with most photoelectric eyes, but never with a Telco sensor.
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The ILPS-13Z Series miniature linear variable inductive transducer position sensor is designed to deliver exceptional performance and reliability for a wide range of industrial and laboratory applications, including automotive R&D, motorsports, motion control, medical, military and aerospace.
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Turck Banner is expanding its sensor range, with inductive measuring sensors with IO-Link and an analogue output for flush and non-flush mounting.
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Turck Banner has launched two new modes in the Q2X series of miniature photoelectric sensors: laser measurement and fixed-field.
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In the mining sector, the integration of advanced technologies such as proximity detection systems is critical to enhancing safety and operational efficiency. While the technological aspect is essential, the human factor plays a pivotal role in the successful implementation and adoption of these systems.
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The SMARTEYE COLORMARK ll registration mark sensors from Vepac Electronics combine unique colour perception ability with very high-speed response.
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