Infiltrometer

A technology of imbibition and water storage tank, which is applied in the field of imbibition instrument, which can solve the problems of large volume and inability to measure parameters, etc., and achieve the effect of simple structure and easy operation of the instrument

Active Publication Date: 2012-10-17
西安泓尔泰水电新技术有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of osmosis meter, which solves the problem that the volume of the experimental device in the prior art is also relatively large, and the required parameters cannot be measured in a short period of time.

Method used

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Examples

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Embodiment 1

[0014] Set according to the following parameters:

[0015] The height of soil cylinder 1 is 20cm, and the diameter of the inner circle is 5cm. The inside of soil cylinder 1 is provided with perforated plate 10 (plate thickness 1cm) from bottom to top at 3cm. 11 is arranged at 4cm from top to bottom of soil cylinder 1, and water outlet 12 is arranged at 0.6cm from bottom to top of soil cylinder 1, which is equivalent to the lowest point of water-holding layer 14.

[0016] The water injection groove 4 is a square groove or a circular groove without a cover, and the bottom plate of the water injection groove 4 is provided with a round mouth, which is consistent with the diameter of the air intake pipe 5 and communicates.

[0017] Air intake pipe 5 bottoms are provided with corner, and the inflection point of air intake pipe 5 bottoms is higher than the height 2cm of water storage tank 6 outlet valves 9.

[0018] Water storage tank 6 cross-sectional area is 15cm 2 , is 25cm high...

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Abstract

The invention discloses an infiltrometer, comprising a soil tube arranged on the upper transverse plane of a horizontal board. A vertical panel is fixed against one edge of the horizontal board. A water storage tank is installed on the right side of the vertical panel. A water injection tank is connected over the water storage tank. The water injection tank communicates downward with the bottom of the water storage tank. An exhaust valve is disposed on the upper portion of the side surface of the water storage tank. A water outlet valve is mounted on the lower portion of the side surface of the water storage tank. The upper portion of the side surface of the soil tube is provided with a water inlet, which communicates with the water outlet valve of the water storage tank. A horizontal porous plate is arranged in the core space of the soil tube. The porous plate divides the core space of the soil tube into a soil holding layer and a water holding layer. The other side surface of the soil tube is equipped with a water outlet. The device provided by the invention is small in size, is easy to move and simple to operate, and is applicable to being popularized and used in teaching and tests of determining soil infiltration rate and its related parameters in a lab.

Description

technical field [0001] The invention belongs to the technical field of measuring instruments for water infiltration in soil, and relates to an imbibition instrument. Background technique [0002] Soil water movement is the basis of the study of soil internal energy cycle. Macroscopically, both saturated and unsaturated soil water movement obey Darcy's law. In the unsaturated state, the imbibition rate is a variable, and its value changes with the soil moisture content. The lower the moisture content, the greater the imbibition rate; in the saturated state , the imbibition rate is constant. The imbibition rate is an important physical index of the soil, which reflects the water absorption and water permeability of the soil. The determination of this parameter is of great significance to the study of soil physical properties, and it is important to accurately guide agricultural field irrigation and better determine land use methods. role. [0003] At present, there are many...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 张建丰张芳耿小江
Owner 西安泓尔泰水电新技术有限公司
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