LOCA test rotating speed analogy method and device

Abstract

Provided is an LOCA test rotating speed analogy method. A pneumatic motor is arranged in a pressureproof sealed cavity, compressed air works in the pneumatic motor and then is exhausted to the sealed cavity, after the compressed air is cycled, the compressed air takes out part of heat through an exhaust hole and is exhausted out of the sealed cavity, so that the temperature of the motor is lowered; a transmission part is sealed through a high-temperature-resistant permanent magnet coupler which drives a driving shaft, the driving shaft is provided with a signaling needle, a sensor is arranged on a rigid support and is aligned with the signaling needle for verifying; rotating speed adjusting is achieved by the fact that a pressure reducing valve is used for stabilizing air pressure in a certain range, then rotating speed is transmitted to a pneumatic FRL, and rotating speed is controlled by adjusting a throttling valve on the pneumatic FRL. Signals detected by the sensor and signals of a rotating speed table are compared, and a rotating speed analogy experiment is achieved.

Description

Technical field: [0001] The invention relates to a rotating speed checking device. It is a rotational speed simulation device for LOCA test of nuclear grade K1 sensor appraisal. Background technique: [0002] The K1 nuclear-grade speed sensor of the nuclear power plant currently in operation in my country relies on imports. Western countries' blockade of my country's nuclear technology has led to the loss of supply of some products, which has brought potential harm to the development of my country's nuclear power industry. Because of this, we have established a nuclear-grade instrument sensor in view of the situation. The project team develops a series of nuclear-grade instruments and meters, and contributes a small amount to my country's clean energy nuclear power. This project involves a LOCA test speed simulation device for the identification of the speed sensor. At present, there is no suitable motor that can withstand the harsh environment such as high temperature, high...

AI Technical Summary

Problems solved by technology

This project involves a LOCA test speed simulation device for the identification of the speed sensor. At present, there is no suitable motor that can withstand the harsh environment such as high temperature, high pressure, and chemical spraying in the LOCA furnace, and there is no domestic precedent for the LOCA test of related sensors. , so the present invention adopts the aerodynamic scheme to design the speed simulation device, solves many technical problems, and solves the problem of this kind of sensor test

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