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Leakage measuring instrument and method for measuring leakage by using same

A technology for measuring instrument and leakage, which is applied in the direction of measuring flow/mass flow, measuring device, liquid/fluid solid measurement, etc. It can solve the problems of no practical application value, limited supply water, low measurement accuracy, etc., and achieve intuitive and automatic The effect of measurement, low price, and simple measurement method

Inactive Publication Date: 2010-06-30
NORTHWEST A & F UNIV
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AI Technical Summary

Problems solved by technology

Because the amount of water used for land irrigation is limited relative to the amount of groundwater recharge, the change in the water level of the groundwater is also very small, resulting in low measurement accuracy and no practical application value.

Method used

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  • Leakage measuring instrument and method for measuring leakage by using same
  • Leakage measuring instrument and method for measuring leakage by using same

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Embodiment 1

[0023] figure 1 In order to implement a specific technical solution of the present invention, it is only used to give a specific description of the present invention, so that those skilled in the art can better understand and implement the present invention.

[0024] figure 1 in,

[0025] 1. Collecting and protecting parts: a cylindrical container with a diameter of 20cm and a height of 40cm without a cover and a bottom, as the protection part of the collecting part, buried in the ground to be tested.

[0026] 2. Supporting parts: the bottom of the cylindrical container without cover and bottom is evenly distributed and welded with fixed brackets with a height of 10cm as the supporting part to stabilize the bottomless cylindrical container without cover.

[0027] 3. Filtering components: a 10cm high sand filter layer is built in the upper part of the bottomless cylindrical container without a cover, which is fixed on the wall of the bottomless cylindrical container without a cover by...

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Abstract

The invention discloses a leakage measuring instrument, which comprises a leakage collecting component, a supporting component, a collection protecting component, a drainage component and a leakage measuring component. The leakage measuring instrument is characterized by also comprising a filtering component. The supporting component is arranged at the bottom of the collection protecting component; and the leakage collecting component, the filtering component and the drainage component are arranged in the collection protecting component, wherein the drainage component and the leakage collecting component are combined together, and the leakage measuring component measures the water drained by the drainage component. The leakage measuring instrument has the advantages of small volume, low cost, convenient installation and portability; and the measuring method is simple and has high precision. The leakage measuring instrument can be directly arranged at a certain depth of any position of the farmland, and realize timely, quantitative and intuitional automatic measurement of leaked water in a deep layer.

Description

Technical field [0001] The invention relates to a leakage measuring instrument and a method for measuring the deep layer leakage of farmland by using the leakage measuring instrument, which is suitable for the fields of irrigation quality evaluation, irrigation scientific research and environmental protection. Background technique [0002] Rainfall or irrigation causes deep leakage that exceeds the soil plan wet layer field water holding rate, which is an important part of farmland water cycle. Accurate determination of leakage is to determine groundwater replenishment, evaluate irrigation quality and environmental effects, formulate a reasonable irrigation system and Calculate important basic data such as crop water requirements. At present, the recharge of groundwater by measuring leakage is mainly obtained by measuring the water level of observation wells, and the experimental observation of leakage is mainly obtained by lysimeter or bottomed measuring pit. The lysimeter uses...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01F1/00
Inventor 胡笑涛康绍忠蔡焕杰马孝义曹红霞王文娥李志军
Owner NORTHWEST A & F UNIV
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