Artificial climate system for soil-vegetation-atmosphere continuous system model test

Abstract

The invention relates to an artificial climate system, and particularly relates to an artificial climate system for a soil-vegetation-atmosphere continuous system model test, belonging to the field of environmental geotechnics. The artificial system can simulate the natural change of climate environments such as wind, rain, illumination, temperature, humidity and the like. The artificial climate system consists of an artificial climate box body, a box body liner, a light source, a rainmaking device, an intelligent control system, a multi-channel converter, an airflow circulation system, a rainwater circulation system, a temperature / humidity regulation system, a CO2 and O2 regulation system, a climate parameter sensor group and a digital imaging system. The system can realize automatic feedback regulation of the rainfall intensity, the illumination direction and intensity, the wind speed and direction and the temperature and humidity. Meanwhile, by adopting a top-rotatable rainfall illumination integrated device, the problem of position overlapping of the rainfall device and the illumination device is solved, and the uniformity of the illumination intensity and rainfall intensity in the horizontal plane is guaranteed.

Description

technical field [0001] The invention relates to an artificial climate system, in particular to an artificial climate system for soil-vegetation-atmosphere continuum model tests, belonging to the field of environmental geotechnical engineering. The artificial system can simulate natural changes in the climate environment such as wind, rainfall, light, temperature, and humidity. Background technique [0002] With the increasing construction of civil and water conservancy projects in my country, problems such as engineering geological disasters (such as debris flows, landslides, engineering bodies, etc.) Cracking, etc.) are gradually exposed, which has seriously threatened the safety of people's lives and property in our country. In recent years, vegetation has been widely used in the protection of rock and soil due to its reinforcement and anchoring effect of the root system and its air purification function. -The study of atmospheric interaction has become a hot spot in the ...

AI Technical Summary

Problems solved by technology

The existing artificial climate chamber test chamber is suitable for temperature and humidity control, CO 2 and O 2 The adjustment technology is relatively mature, but several fluorescent lamps erected on the box door or the top of the box are used as the light source for the simulation of sunlight, which cannot adjust the change of the incident angle of light with time and the uniformity is poor, but it can realize artificial rainfall. Artificial climate chamber is still rarely reported

At present, the artificial rainfall equipment for simulating rainfall mainly adopts uniformly spaced rotating nozzles on the top or uniformly distributed dripping needles on the top of a rectangular water tank, but the uniformity of the raindrops produced by the rotating nozzles has obvious size effects, which is not suitable for small-scale rainfall. Rock and Soil Mass Model Experiments with High Uniformity Requirements

Although the uniform distribution of drip needles on the top of the rectangular water tank has good rainfall uniformity, it is too large to be directly applied to the artificial climate box. At the same time, there is a positional conflict between the uniform distribution of drip needles on the top of the rectangular water tank and the light source that needs to be placed on the top of the box.

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