Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Soil water extraction device and extraction method thereof

A technology of soil water and soil, applied in the direction of sampling device, measuring device, sampling, etc., to achieve the effect of avoiding miscalculation, speeding up efficiency and improving accuracy

Inactive Publication Date: 2018-08-14
HOHAI UNIV
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the efficiency and precision problems existing in the existing experimental equipment, and provides a device for extracting soil water and a lifting method thereof

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Soil water extraction device and extraction method thereof
  • Soil water extraction device and extraction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A method for extracting soil water, comprising the steps of:

[0053] (a) Close the first valve and the second valve, and then turn on the vacuum pump to start vacuuming. When the pressure of the vacuum pump indicates

[0054] When the indicator is less than 1, it means that the equipment from the first valve to the vacuum pump is under vacuum condition, then open the second valve to vacuumize the second container and the third container, and extract the water vapor from the second valve to the vacuum pump device.

[0055] (b) After that, put the soil to be tested in the first container, close the third valve, open the constant temperature electric furnace, adjust the stable temperature of the electric furnace to 105°C, and then turn on the switch of the humidity sensor. As the electric furnace continues to heat up, there will be Water vapor appears, and when the temperature of the electric furnace reaches about 90°C, the second valve is opened. When the reading of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a soil water extraction device and an extraction method thereof. An extraction branch is arranged at the device, the extraction branch comprises a first container, a heating device for heating the first container filled with soil, a second container, a third container and a humidity-dependent sensor, the second container is placed in an insulation container filled with a refrigerant, a filtering medium is arranged in the third container, the soil water extraction device also comprises a converter, the converter controls vacuum operation condition of each branch pipeline, when the device operates, all valves of the branch on the converter should be closed, and when the branch pipeline operates, the corresponding branch valve can be opened. According to the invention, several soil water samples are simultaneously extracted, the soil water extraction efficiency is accelerated, and the application of the humidity-dependent sensor can avoid the error estimation of the soil residual water content and increases the isotope measurement precision.

Description

technical field [0001] The invention belongs to the technical field of isotope hydrology, and specifically relates to a soil water extraction device and an extraction method thereof. Background technique [0002] Soil water stable isotopes (deuterium, oxygen-18) are crucial in the study of soil water evaporation, atmospheric precipitation in vadose zone migration and groundwater recharge mechanisms, and these hydrological processes are difficult to quantify by other detection methods. Soil water is an important part of water resources, a source of water absorption for plant growth and development, and an important indicator of pollutants in the soil and changes in the soil environment. In order to fully study soil infiltration and evaporation, many scientific research institutions collect samples of soil water in different regions to explore the change law of its isotopes with time scale and depth, so as to provide sufficient basis for local water resources management. Ther...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1418
Inventor 瞿思敏勾建峰石朋陈学秋李大辰
Owner HOHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com