Underground water phreatic water evaporation measuring system and method based on internet of things technology

An Internet of Things technology and measurement system technology, applied in the field of groundwater submersible evaporation measurement systems, can solve the problems of high labor and material costs, low measurement accuracy, and inability to automatically record the groundwater submersible evaporation process, so as to reduce experimental workload and improve measurement accuracy. Effect

Pending Publication Date: 2017-09-19
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0004] The invention provides a groundwater submersible evaporation measurement system and method based on the Internet of Things technology to solve the technical problems that the prior art cannot automatically record the groundwater submersible evaporation process, the measurement accuracy is low, and the cost of manpower and material resources is high.

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  • Underground water phreatic water evaporation measuring system and method based on internet of things technology
  • Underground water phreatic water evaporation measuring system and method based on internet of things technology
  • Underground water phreatic water evaporation measuring system and method based on internet of things technology

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example 1

[0103] Example 1: Table 2 shows the groundwater burial depth, groundwater salinity, evaporation intensity, and phreatic evaporation during stable evaporation corresponding to the 8 groups of experiments. The water supply degree is 0.025, C 0 Taking 0.5g / L, substituting 8 sets of experimental data into the above formula, and performing parameter fitting, the functional relationship between submerged evaporation and groundwater burial depth, groundwater salinity, and evaporation intensity shown in formula (1.9) is obtained.

[0104]

[0105] Table 2 Measured and calculated values ​​of submerged evaporation

[0106]

[0107] The relationship between the phreatic evaporation measured by the above system and method and groundwater salinity, buried depth, and evaporation intensity is as follows: Figure 9A , Figure 9B and Figure 9C shown.

[0108] In summary, the method of the present invention can simulate the influence of different groundwater levels, evaporation intens...

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Abstract

The invention discloses an underground water phreatic water evaporation measuring system and method based on an internet of things technology. The phreatic water evaporation measuring system comprises a Mariotte bottle, a lifting machine, a soil column, a gravity sensor, evaporation strength control equipment, a data collecting and transmitting device and terminal equipment. The phreatic water evaporation measuring system based on the internet of things technology disclosed by the invention achieves automatic recording, transmission and checking at any time of experiment data and greatly reduces experiment work amount; a high-accuracy sensor in the phreatic water evaporation automatic measuring system improves measuring accuracy; by means of taking effects of underground water mineralization degree on phreatic water evaporation into consideration, a phreatic water evaporation model is further corrected, and the phreatic water evaporation model is more suitable for an evaporation process of phreatic water in an area where underground water mineralization degree is higher. The system disclosed by the invention can simulate effects of different underground water levels, evaporation strengths and underground water mineralization degrees on phreatic water evaporation and is suitable for phreatic water evaporation of stratified soil and homogeneous soil.

Description

technical field [0001] The invention relates to the technical field of agricultural water and soil engineering, in particular to a groundwater submersible evaporation measurement system and method based on Internet of Things technology. Background technique [0002] Submarine evaporation is an important part of the water cycle. The study of submerged evaporation plays an important role in the prevention and control of salinization, the evaluation of groundwater resources, the estimation of water consumption of natural vegetation, and the understanding of the law of water cycle in farmland and regions. Especially in areas with shallow groundwater burial, phreatic evaporation is one of the main consumption items of groundwater, and it is also one of the main water sources of regional evaporation. Submerged evaporation refers to the process in which water is transported from submerged water to the vadose zone and enters the atmosphere through soil evaporation or (and) plant tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 赵勇任长江龚家国何凡李海红翟家齐
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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