Method for detecting seeping water source of underground workshop of pumped storage power station based on isotope tracer technique

A pumped storage power station, isotope tracer technology, applied in the direction of testing water, measuring devices, detecting the appearance of fluid at leak points, etc., can solve problems such as detection

Inactive Publication Date: 2018-03-06
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0002] At present, the upper reservoir, water diversion steel pipe and underground powerhouse of the power station are all arranged underground. It is difficult to accurately detect the water seepage of the underground powerhouse through ordinary detection methods. Therefore, it is necessary to find a leak detection method suitable for the underground powerhouse of the hydropower station. Ability to distinguish the source of water seepage in underground powerhouses

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  • Method for detecting seeping water source of underground workshop of pumped storage power station based on isotope tracer technique
  • Method for detecting seeping water source of underground workshop of pumped storage power station based on isotope tracer technique
  • Method for detecting seeping water source of underground workshop of pumped storage power station based on isotope tracer technique

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Embodiment Construction

[0041] Study the influencing factors of the seepage change of underground powerhouses in different seasons, determine the proportion of various seepages in different seasons, summarize the regular changes of seepage, and propose a set of anti-seepage treatment measures that treat both symptoms and root causes, so as to solve the leakage of underground powerhouses Purpose.

[0042] (1) Through the field test, the leakage source of the underground powerhouse of the Pushihe Pumped Storage Power Station was accurately found.

[0043] (2) Combining the seepage monitoring data and field test results in recent years, distinguish the main sources of seepage and study the law of seepage changes;

[0044] (3) Study the causes of leakage through the analysis of the law of water seepage change and evaluate and analyze the impact of the current leakage situation on the safety of the plant;

[0045] (4) Propose an effective anti-seepage treatment plan for both the source of leakage and the...

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Abstract

The invention provides a method for detecting a seeping water source of an underground workshop of a pumped storage power station based on an isotope tracer technique. The method comprises the following steps: according to the overall structures of the underground workshop and an upper reservoir, collecting water samples from a measuring weir of the underground workshop, in-reservoir water, seepage around a dam of the upper reservoir, underground water, a gentle slope and the surrounding of the reservoir; analyzing radon isotopes in the water samples, at the same time, relatively analyzing theconcentration of hydrogen and oxygen isotopes, chloride ions, sulfate ions and nitrate ions in the water samples, wherein detection results of the concentration of the chloride ions, the sulfate ionsand the nitrate ions are up to the time point of half a year; analyzing all the contents in order to more comprehensively evaluate the seeping water source. The principle of fractional distillation of water isotopes is adopted for investigating a water supply source and distinguishing the composition of underground water from different sources in seeping water, which has a critical function in accurately understanding a seepage field of the dam and determining whether a seepage channel around the dame exists.

Description

Technical field: [0001] Method for measuring seepage source of underground powerhouse of pumped storage power station based on isotope tracer technology Background technique: [0002] At present, the upper reservoir, water diversion steel pipe and underground powerhouse of the power station are all arranged underground. It is difficult to accurately detect the water seepage of the underground powerhouse through ordinary detection methods. Therefore, it is necessary to find a leak detection method suitable for the underground powerhouse of the hydropower station. Be able to distinguish the source of water seepage in underground powerhouses. Invention content: [0003] Purpose of the invention: [0004] Based on the isotope tracer technology to measure the seepage source of the underground powerhouse of the pumped storage power station, the purpose is to solve the existing problems in the past. [0005] Technical solutions: [0006] Based on isotope tracer technology to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18G01N33/00G01M3/20
Inventor 王千荆凯于粟李明黄琢冯雁敏常洪军房国忠
Owner STATE GRID CORP OF CHINA
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