Non-contact travel switch adjusting and monitoring device for nuclear power station

Abstract

The invention relates to a non-contact travel switch adjusting and monitoring device for a nuclear power station, which comprises a battery, a light-emitting diode, an adjustable resistor and a connector, the battery, the light-emitting diode, the adjustable resistor and the connector are connected in series to form a test loop, and the connector is used for connecting a non-contact travel switch; when the non-contact travel switch is switched on, the test loop is switched on, and the light-emitting diode emits light, and when the non-contact travel switch is switched off, the test loop is switched off, and the light-emitting diode is extinguished. Compared with the prior art, the device provided by the invention can be connected with the non-contact travel switch for the nuclear power station needing to be debugged, whether the non-contact travel switch is conducted or not can be observed at any time in the process of adjusting the non-contact travel switch, and the adjusting and monitoring device can meet the requirements of most on-site environments and installation positions.

Description

technical field [0001] The invention belongs to a switch testing device, in particular to a non-contact travel switch adjustment monitoring device for nuclear power plants. Background technique [0002] The travel switch is a kind of position switch (or limit switch), and is a commonly used small current master electrical appliance. Use the collision of the moving parts of the production machinery to make the contact move to realize the connection or break of the control circuit to achieve a certain control purpose. Usually, this type of switch is used to limit the position or stroke of the mechanical movement, so that the moving machinery will automatically stop, reverse movement, variable speed movement or automatic reciprocating movement according to a certain position or stroke. [0003] Some commonly used limit switches are mechanical limit switches, and there is currently a non-contact limit switch. [0004] At present, the non-contact limit switch used in nuclear po...

AI Technical Summary

Problems solved by technology

In the on-site work, there are a lot of dismantling and adjustment of the non-contact travel switch in cooperation with mechanical professional dismantling valves and daily defect elimination work, and the adjustment steps in the work are more complicated. It is necessary to measure whether the switch is conducting while turning the non-contact travel switch.

This work requires two people to work together. For a place with a small space and messy field equipment, the test is very difficult due to the complex on-site environment, and there is a risk of misjudging whether it is actually connected. At the same time, it is easy to touch the equipment by mistake, which will affect the stable operation of the equipment.

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