Testing device for indoors simulating soil body evaporating process

Abstract

The invention discloses a testing device for indoors simulating the soil body evaporating process, and relates to the technical field of soil body evaporating tests. The testing device comprises a support. An electronic scale is arranged in the middle of the inner side of the support. A soil column casing is arranged at the top end of the electronic scale. A soil sample is arranged in the soil column casing. A plurality of TDR moisture sensors are inserted in the soil column casing. A fan is arranged on one side of the support. A temperature and humidity sensor is arranged on the other side ofthe support. An arc-shaped plate is arranged on the inner side of the support and slidingly connected with a slide rod. A slide rail is arranged at the upper portion of the slide rod. An infrared lamp is arranged at the bottom end of the slide rod. A threaded rod is arranged at the top end of the support and penetrates through a movable block. A push rod is arranged at the lower portion of the movable block. One side of the soil column casing is provided with a CCD microscope camera through a supporting frame. The actual evaporating environment of a to-be-tested sample can be indoors precisely simulated, the experiment effects can be easily compared, and the external workloads are reduced.

Description

technical field [0001] The invention belongs to the technical field of soil evaporation tests, and in particular relates to a test device for simulating the evaporation process of soil indoors. Background technique [0002] The evaporation of water in soil is different from pure water, and has a very complicated process of occurrence and development, and is affected by many factors. For a long time, the evaporation of water in soil has been a research focus in the fields of agriculture and soil science. Especially in some arid and semi-arid areas, agricultural scientists have carried out a lot of research work on how to improve the water retention performance of the soil and reduce the evaporation loss of water in the soil, so as to ensure the normal growth of crops. In the field of geotechnical engineering, people have not paid enough attention to the problem of water evaporation in soil, and there are relatively few studies on this topic. Evaporation affects soil moistur...

AI Technical Summary

Problems solved by technology

However, at present, there are relatively few test devices for indoor evaporation simulation, and they are not widely recognized by everyone. Many researchers usually measure the evaporation directly outside in the process of studying evaporation, and they have no idea about the devices and experimental effects. Comparison, lack of comparison; moreover, when simulating sunlight in existing devices, fixed-point irradiation is used, which cannot simulate the actual law that the sun rises in the east and sets in the west, continues to move, and the angle of the sun irradiating on the surface of the soil sample continues to change. There is a certain deviation between sunlight and indoor simulated sunlight, which may cause large deviations in test results

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