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Device for monitoring and measuring air permeability of soil

An air permeability and soil technology, which is applied to the device and monitoring field for measuring soil air permeability, can solve problems such as differences in ground air pressure, and achieve the effects of accurate measurement, long recording time, stable and reliable performance

Pending Publication Date: 2019-03-08
DUNHUANG ACAD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, at the same time, due to the influence of natural environmental conditions such as temperature, humidity, and salinity inside the soil and its own composition, there are differences in geopressure in different regions, resulting in changes in the migration direction and amount of gases, water, and minerals.

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  • Device for monitoring and measuring air permeability of soil
  • Device for monitoring and measuring air permeability of soil
  • Device for monitoring and measuring air permeability of soil

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Embodiment Construction

[0019] The atmospheric pressure transmitter used in the present invention is HD9408T, produced by Italy DeltaOHM Company, its measuring range: 600~1100 mBar; overload: 2 bar; accuracy: ±0.4 mbar; output: 4~20 mA; working temperature: -30~ +60°C; the configuration paperless recorder is BT805 paperless recorder (manufactured by Xiamen Burt Automation Engineering Co., Ltd.), and the recording interval can be freely set from a few seconds to several hours according to specific needs. Five-digit display, high precision, matched with the atmospheric pressure transmitter HD9408T, the resolution can reach 0.1 hPa. U disk dump, easy to download and analyze. The power supply can choose AC 220V power supply or DC 24V for paperless recording instruments according to actual needs; the temperature and humidity monitor is HOBO-U23-002, made in the United States, and the accuracy is ±0.21°C when the temperature is in the range of 0-50°C; The accuracy is ±2.5% when the relative humidity is be...

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Abstract

The invention discloses a device for monitoring and measuring the air permeability of soil. The device is composed of a closed system and a monitoring system, wherein the closed system is composed ofa stainless steel pipe, a soil column and a stainless steel pipe cap, and the monitoring system is formed by mutually connecting atmospheric pressure transmitters, a paperless recorder, a temperatureand humidity monitor, three-way plastic pipes, an injector, a wire and a power supply. According to the device, the changes of the air pressure, the temperature and the humidity of the soil column inthe closed stainless steel pipe are monitored, so that the air permeability of the soil and the water vapor throughput are calculated, and the technical support is provided for research of the air permeability of the soil, physical geography, mineral exploration, traditional geogas research in china and protection of cavern cultural relics.

Description

technical field [0001] The invention relates to a device for monitoring and measuring soil air permeability. The device is a closed system. By measuring changes in soil air pressure, temperature, and humidity, the air permeability of the soil is determined, and technical support is provided for the protection of soil air permeability, traditional Chinese earth atmosphere, and cave cultural relics. Background technique [0002] The air permeability of the soil refers to the ability of the soil to pass through the air, also known as the air permeability of the soil. As we all know, soil is composed of solid, liquid and gas, and soil air permeability is closely related to soil particle size, soil water content, relative air humidity, soil temperature, salinity, and air pressure difference. In general, the air permeability of the soil has an important impact on the intensity of microbial activity, seed germination, root development, nutrient uptake and nutrient transport. Amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/0826
Inventor 李红寿詹鸿涛孙胜利刘文珺徐涛
Owner DUNHUANG ACAD
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