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Electrical control system of crane of nuclear power plant

An electrical control system, crane technology, applied in the direction of load hanging components, transportation and packaging, safety devices, etc., can solve the problems of nuclear safety accidents that do not meet the requirements of single fault, achieve detailed alarm and fault information, easy fault finding, Fast-running effects

Inactive Publication Date: 2012-05-23
TAIYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, for nuclear power plants, there is a major hidden danger of failing to meet the single fault requirements and causing nuclear safety accidents

Method used

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  • Electrical control system of crane of nuclear power plant
  • Electrical control system of crane of nuclear power plant
  • Electrical control system of crane of nuclear power plant

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5As shown, the electrical control system of the crane in the nuclear power plant in this embodiment includes a set of operation control device, a set of monitoring device, two industrial computers (3-1) and (3-2), the main hoisting motor speed detection device and The main hoisting safety brake, wherein: the operation control device is operated by the operation programmable logic controller (1), two cart encoders (4-1) and (4-2), and the installation trolley installed on the crane. Hoist encoder (5), two running trolley encoders (6-1) and (6-2), auxiliary hoisting encoder (7), running main hoisting encoder (8), four cart inverters (9-1), (9-2), (9-3) and (9-4), install trolley lifting frequency converter (10), run main lifting frequency converter (11), auxiliary liftin...

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Abstract

The invention relates to an electrical control system of a crane of a nuclear power plant, belonging to an electrical control device for a polar crane in a nuclear power plant which can satisfy signal failure demand, is non-redundant and has two PLCs. The invention mainly solves the technical difficulties of no satisfaction of signal failure demand and easy initiation of nuclear safety accidents.The technical scheme adopted by the invention is as follows: the electrical control system of the crane of the nuclear power plant comprises an operation control device, a monitoring device, two industrial computers, a main lifting motor speed detecting device and a main lifting safety brake, a master station 1 operating a programmable logic controller, and a master station 2 monitoring the programmable logic controller, wherein the master station 1 is in flexible connection with the master station 2 through a DP / DP coupler and exchange data with each other, and compares the repeated measurement data of the major positions collected by the monitoring device with operation data collected by the operation control device so as to ensure timely and reliable stop action of the crane.

Description

technical field [0001] The invention relates to an electrical control system for a crane in a nuclear power plant, which belongs to an electrical control device for a ring crane used in a nuclear power plant that can meet single fault requirements, is non-redundant, and has dual PLCs. Background technique [0002] In order to ensure the safe operation of the ring crane used in nuclear power plants, not only the mechanical part is required to meet the single-fault operation conditions, but also the electrical drive control system must meet the single-fault function requirements. [0003] In the past, there were three kinds of electrical transmission control systems for ring cranes: no programmable logic controller (PLC), only one set of PLC or two redundant sets of PLC. [0004] For a system that does not use PLC, if a component fails, although the crane can be stopped, due to the hard-wire connection, interlocking, and combination, the number of alarm signals (mostly using i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/22B66C15/00
Inventor 刘焕江吉孟兰吴建华
Owner TAIYUAN HEAVY IND
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