Nuclear power station dead pipe section visualization thermotechnical hydraulic experiment device and method

An experimental device, thermal hydraulic technology, applied in nuclear engineering, nuclear power generation, nuclear reactor monitoring and other directions, can solve the problems of difficult to manufacture, difficult to observe and analyze, complex structure, etc., to achieve simple structure, avoid overheating phenomenon, strong operability Effect

Inactive Publication Date: 2020-05-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Including the simulated dead pipe section, heating body, heating coil and sleeve, the simulated dead pipe section is a hollow structure through, the cross section of the heating body is circular, the right end of the heating body is sealed and inserted into the simulated dead pipe section, the right end of the heating body is The disc structure of the check valve with an inclined end surface, the insert sleeve is a hollow structure, the insert sleeve is vertically sealed and penetrates into the simulated dead pipe section and inserted into the right end of the heating body, the probe of the thermal resistance thermometer is inserted into a sealed insert The temperature of

Method used

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Example Embodiment

[0021] Below in conjunction with accompanying drawing, the present invention is described in detail:

[0022] like figure 1 As shown, a visual thermal hydraulic experiment device in a dead pipe section of a nuclear power plant according to the present invention includes a visual test section 11, and the two ends of the visual test section 11 are closed by a valve disc simulator 2, a head 8 and a flange 15, simulating a dead pipe section pipeline ; The heating system is composed of the heating rod 1 and the thyristor power regulator 9, the heating rod 1 is embedded in the disc simulator 2, and the power supply is controlled by the thyristor power regulator 9, so as to control the heating power of the heating rod 1, changing The size of the experimental heat flow; the visualization experiment section 11 is provided with a first cut-off valve 5, a second cut-off valve 14, a safety valve 7 and a differential pressure sensor 6, and the first cut-off valve 5 and the second cut-off valv

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PUM

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Abstract

The invention discloses nuclear power station dead pipe section visualization thermotechnical hydraulic experiment device and method, wherein the device comprises a visual test section, and two ends of the visual test section are closed through a valve clack simulator and a sealing head, so as to simulate a dead pipe section pipeline; a heating system is composed of a heating rod and a silicon controlled rectifier power regulator, wherein the heating rod is embedded into the valve clack simulator; a stop valve, a safety valve and a differential pressure sensor are arranged on the visualizationexperiment section, wherein inflow and outflow of fluid in the visualization experiment section are controlled through the stop valve, and meanwhile a thermocouple is arranged on the visualization experiment section; the CCD camera is located on the side of the visual experiment section and forms a PIV system with the sheet laser source at the tail end of the experiment device, pulse laser sheetlight is provided through the sheet laser source, an exposure particle image is shot through the CCD camera, and a PIV experiment image is formed. The invention also provides an experimental method ofthe experimental device, which can meet the requirements of research on thermotechnical and hydraulic phenomena such as growth, separation and the like of a flow field and steam bubbles in a dead pipeline.

Description

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Claims

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Application Information

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Owner XI AN JIAOTONG UNIV
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