Method and system for verifying installation deviation of limit switch of absorption ball shutdown system

Abstract

The invention discloses a method and system for verifying installation deviation of a limit switch of an absorption ball shutdown system. The method comprises the steps of adjusting a timer in a control loop according to a preset distance between an upper limit switch and a lower limit switch; controlling a ball falling pipe to move downwards by a preset distance until the lower limit switch is triggered; controlling the ball falling pipe to move upwards by a preset distance, and when the upper limit switch is triggered, determining a first moving distance of the ball falling pipe; and judging whether installation deviation exists between the upper and lower limit switches according to the first moving distance. By implementing the method, the timer is adjusted, and the limitation of the single lifting distance is relieved; the ball falling pipe is controlled to move downwards by a preset distance until the lower limit switch is triggered; and then the ball falling pipe is controlled to move upwards by a preset distance until the upper limit switch is triggered, so that the distance between the upper and lower limit switches can be determined, and whether the upper and lower limit switches have installation deviation or not is determined. Compared with a vernier caliper measurement mode, the method improves the working efficiency.

Description

technical field [0001] The invention relates to the technical field of debugging the absorbing ball shutdown system of a high-temperature gas-cooled reactor, in particular to a method, device and storage medium for verifying the installation deviation of a limit switch of the absorbing ball shutdown system. Background technique [0002] The absorption ball shutdown system (JDE system) of the high-temperature gas-cooled reactor demonstration project is driven by a stepping motor to move the drop tube up and down, and stops when the corresponding upper limit or lower limit switch is triggered. Wherein, the stepper motor receives pulse signals of fixed frequency, and every time 2000 pulses are received, the drop tube is driven to move 1 mm. [0003] There are a pair of upper limit switches and a pair of lower limit switches in the JDE system. During installation, there are strict requirements on the distance between the upper and lower limit switches, the distance between the ...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a method, device and storage medium for verifying the installation deviation of the limit switch of the absorbing ball shutdown system, so as to solve the inefficient technology of using a vernier caliper to measure the distance of the limit switch in the prior art question

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