High-energy pipeline local leakage monitoring test bed for nuclear power station

A technology for test benches and high-energy pipelines, used in nuclear power generation, nuclear reactor monitoring, nuclear engineering, etc.

Active Publication Date: 2013-08-14
CHINA NUCLEAR POWER ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current research on related products at home and abroad, there is currently no mature product that can be directly applied to the quantitative measurement of specific high-energy pipeline leakage monitoring in nuclear power plants. Adaptive modification or product development is required, and accu

Method used

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  • High-energy pipeline local leakage monitoring test bed for nuclear power station

Examples

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Example Embodiment

[0023] Example

[0024] Such as figure 1 As shown, the construction of the test bench is mainly composed of six parts: high-energy medium trigger device, test pipeline, process pipeline (including pipelines and valves, etc.), leakage rate measurement pipeline, heat preservation device, test instrumentation and monitoring system.

[0025] High-energy medium generating device

[0026] There are no specific restrictions on the design scheme of the high-energy medium generating device. According to its own resource conditions, the boiler device or the method of using externally supplied high-energy medium can be used to produce a medium that is consistent with the actual working condition parameter requirements of the high-energy pipeline of the nuclear power plant to achieve stable medium operation Operating parameters (temperature, pressure), and continuous adjustment of operating parameters. The high-energy medium generating device in this embodiment is a boiler drum 1-1.

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Abstract

The invention belongs to the technical field of measurement in nuke industry, and in particular relates to a high-energy pipeline local leakage monitoring test bed for a nuclear power station. A structure of the high-energy pipeline local leakage monitoring test bed comprises a high-energy medium generation device, wherein the high-energy medium generation device is connected with a testing pipeline through a technological pipeline, the testing pipeline is connected with a leakage rate measurement pipeline, the testing pipeline comprises a testing straight pipeline and a crack simulation test piece, the technological pipeline comprises a main technological pipeline and a temperature and humidity steam testing pipeline as a branch pipeline, the testing straight pipeline is connected with the main technological pipeline, the temperature and humidity steam testing pipeline respectively extends to the crack simulation test piece and the leakage rate measurement pipeline respectively, a plurality of waveguide rods are arranged on the testing straight pipeline, acoustic emission sensors are arranged on the waveguide rods and are connected with signal acquisition cards through cables. The test bed provided by the invention can be used for finishing leakage simulation tests of high-energy pipelines, as well as research and development, demarcating and overhaul of acoustic emission leakage monitoring systems and temperature and humidity leakage monitoring systems.

Description

technical field [0001] The invention belongs to the technical field of nuclear industry measurement, and in particular relates to a local leakage monitoring test bench of a high-energy pipeline in a nuclear power plant, which can be used for research and development, calibration and maintenance of a local leakage monitoring system. Background technique [0002] After the Fukushima accident in Japan, higher requirements were put forward for the safety and reliability of nuclear power plants, especially the leakage monitoring of high-energy pipelines related to nuclear safety, requiring the use of leak-before-break technology. The pre-break leakage technology is an advanced design technology to ensure the safety and reliability of the reactor operation. When the pipeline leaks and the leakage reaches a certain level, it can be measured by a special leakage monitoring device and the operating personnel will be notified. Before the crack expands to the critical size and breaks s...

Claims

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Application Information

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IPC IPC(8): G21C17/00
CPCY02E30/30
Inventor 张雷闫桂银肖代云张瑞萍邵拓
Owner CHINA NUCLEAR POWER ENG CO LTD
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