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Nuclear fuel component repair monitoring system

A nuclear fuel assembly and monitoring system technology, applied in the field of nuclear power generation, can solve the problems of affecting repair efficiency, nuclear fuel assembly 500 damage, high error probability, etc., and achieve good safety, high repair efficiency, and good operation safety.

Active Publication Date: 2016-01-06
LINGAO NUCLEAR POWER +3
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Problems solved by technology

Furthermore, the operator must monitor the repair process of the nuclear fuel assembly 500 by viewing the pulling force data and height data. The probability of errors is relatively high. When a failure occurs during the replacement process, the operator cannot respond in time. When the tool 300 reaches the lower end of the nuclear fuel assembly or separates from the upper end of the nuclear fuel assembly, the action of the new fuel elevator 400 cannot be stopped in time, thus causing damage to the nuclear fuel assembly 500 or affecting the repair efficiency

Method used

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Embodiment Construction

[0025] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0026] refer to Figure 1a, the present invention provides a nuclear fuel assembly repair monitoring system 100, which is used for monitoring during the replacement of nuclear fuel rods, including a data acquisition module 12, a processing module 13 and an alarm module 1, and the data acquisition module 12 is connected with a tension sensor 301 ( Installed on the nuclear fuel rod drawing and inserting tool 300) is connected with the wire encoder 401 (installed on the new fuel elevator 400), acquires and processes the tension data of the tension sensor 301 and the height data of the wire encoder 401; the processing module 13 includes an alarm control unit 31, the alarm control unit 31 judges whether the tension data exceeds a preset tension...

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Abstract

The invention discloses a nuclear fuel component repair monitoring system for monitoring of nuclear fuel rod replacement work; a data acquisition module is connected with a pulling force sensor mounted on a nuclear fuel rod thrusting tool and a wire drawing encoder mounted on a new fuel elevator and is used for processing pulling force data detected by the pulling force sensor and height data detected by the wire drawing encoder to obtain pulling force data and height data; when the pulling force data and the height data exceed preset values, an alarm is given to timely remind an operator of a fault, so that the operator can complete the entire monitoring work by the nuclear fuel component repair monitoring system; operation is simple, operation safety is good and the repair efficiency is high.

Description

technical field [0001] The invention relates to the field of nuclear power generation, in particular to the monitoring of repair work of nuclear fuel assemblies in nuclear power stations. Background technique [0002] The nuclear fuel assembly is composed of nuclear fuel rods, nuclear fuel assembly grids, compression springs, upper tube holders and lower nozzle holders. The fuel cladding houses the nuclear fuel rods, isolates the fuel from the coolant, and contains fission gases. It is the first barrier to prevent the escape of radioactive particles. During normal operation, due to thermal expansion, densification, swelling, cracks and released fission gas of nuclear fuel rods, the fuel cladding may be deformed and ruptured, resulting in an increase in the radioactivity of the primary circuit coolant. Therefore, it is necessary to carry out necessary inspections on nuclear fuel assemblies. When the nuclear fuel assembly is damaged, replace the damaged nuclear fuel rods in ...

Claims

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Application Information

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IPC IPC(8): G21C17/10
CPCY02E30/30
Inventor 邓志燕刘青松余冰张涛侯硕李其朋孙绮林刘士心周国丰黄文有
Owner LINGAO NUCLEAR POWER
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