A6210  Thrust position, differential expansion and rod position monitor

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Overview

Essential details：A6210  Thrust position, differential expansion and rod position monitor

Thrust position, differential expansion and rod position monitors are devices used in industry for specific monitoring tasks. Here is a brief introduction to the three monitors:

Thrust position monitor: Mainly used to monitor thrust position, usually applied to key equipment such as turbine machinery. It provides reliable protection for the machine by measuring the axial position and comparing it with the alarm position. Set points are used to drive alarms and relay outputs to minimize or avoid rotor contact with the housing if sudden or small axial movement is detected. In addition, to ensure accuracy and reliability, redundant sensors and voting logic are recommended, and the measurement of thrust bearing temperature is considered as a complement to thrust position monitoring.
Differential expansion monitor: Used to monitor the relative expansion between the static and static parts of the turbine. Because the dynamic and static parts of the steam turbine will have different expansion due to the difference in temperature or temperature rise during start-up or operation, the differential expansion monitor can monitor this expansion difference in real time and measure it by specific sensors (such as eddy current sensors). Such monitors are commonly used to ensure the safe operation of the turbine and prevent mechanical failures due to differential expansion.
Rod position monitor: is a monitor that accepts input to measure rod position, drop rod position, or supercompressor position. Such monitors typically have a programmable alarm function and the ability to interact with other systems, such as display systems, to provide accurate information about the control rod position. Rod position monitors have a wide range of applications in nuclear energy and other industrial fields, and are essential to ensure the proper operation and safety of equipment.
In summary, thrust position, differential expansion and rod position monitors each play a key role in specific industrial applications, ensuring the proper operation and safe performance of the equipment. The selection and use of these monitors should be based on specific application scenarios and needs to ensure that they can accurately and reliably complete the task.

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These devices play a vital role in the industrial field, mainly reflected in the following aspects:

First of all, the thrust position monitor is mainly used to monitor the thrust position of key equipment such as turbine machinery. It can measure the axial position in real time, and compare it with the preset alarm position, once the abnormal axial movement is detected, it can issue an alarm in time, and output a signal through the relay, thereby avoiding or reducing the contact between the rotor and the housing, preventing the occurrence of equipment damage and failure. This is of great significance for ensuring the stable operation and extending the service life of the equipment.

Secondly, the differential expansion monitor is mainly used to monitor the relative expansion between the dynamic and static parts of the turbine. Because the operation of steam turbine involves high temperature and high pressure environment, its dynamic and static parts will expand differently due to the difference of temperature or temperature rise during start-up or operation. The differential expansion monitor can monitor this expansion difference in real time and measure its change through the sensor. Once the expansion difference exceeds the safe range, the monitor will issue an alarm to remind the operator to take timely measures to prevent mechanical failures or accidents caused by the expansion difference. This is essential to ensure the safe operation of the turbine.

Finally, rod position monitors are widely used in nuclear and other industrial applications to measure rod position, drop rod position, or supercompressor position. It has a programmable alarm function and is able to interact with other systems, such as display systems, to provide accurate information about the control rod position. This is important for ensuring the normal operation and safety performance of nuclear reactors or other industrial equipment.

To sum up, these devices play an important role in the industrial field, they can monitor the operating status of the equipment in real time, detect and deal with abnormal situations in time, and ensure the stable operation and safety performance of the equipment. Through the application of these devices, the industrial sector can achieve higher production efficiency, lower failure rates and better safety.