One-dimensional soil body heat and humidity transfer simulation device and measurement method

A technology of heat and moisture transfer and simulation device, which is applied in the direction of soil material testing, material inspection products, etc., can solve problems affecting heat conduction, soil disturbance, etc., and achieve high test accuracy and good integrity

Inactive Publication Date: 2015-02-04
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] The purpose of the present invention is to provide a simulation device for one-dimensional heat and moisture transfer in soil, which

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  • One-dimensional soil body heat and humidity transfer simulation device and measurement method

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[0052] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0053] Test device such as figure 1 As shown, it includes two parts: constant temperature heating system and test soil column. During the test, the test tanks were filled with red clay, silty clay and fine construction sand from the ground source heat pump test site. One end of the soil column was heated by a copper heating tank, and the embedded sensor was used to measure each measurement in the soil column. Point temperature and humidity changes.

[0054] Constant temperature heating part:

[0055] In order to provide a stable constant temperature heat source for the entire test bench, the constant temperature water tank 1 of the present invention: the tank body is a 20L vehicle-mounted incubator, the built-in electric heater 2 is connected to the external thermostat 3, and the first circulating water pump 4 and the second Circulating water pump 5, water temp...

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Abstract

The invention discloses a one-dimensional soil body heat and humidity transfer simulation device and measurement method. Two electric heaters are arranged in a thermostatic water tank; the thermostatic water tank is also internally provided with a first circulating water pump used for carrying out internal circulation on water in the water tank, and a second circulating water pump used for carrying out external circulation on hot water in the thermostatic water tank by a pipeline; the thermostatic water tank is also internally provided with a water thermometer used for measuring the water temperature; a soil column experiment box body is made of an acrylic plate capable of insulating heat and water; a heating tank is arranged at one end in a soil column experiment box and the rest of space in the soil column experiment box is used for bearing soil used for an experiment; a plurality of temperature sensors and moisture content sensors are also arranged in the soil used for the experiment in the soil column experiment box; the heating tank is isolated from the soil used for the experiment by a copper plate. The one-dimensional soil body heat and humidity transfer simulation device and measurement method have the beneficial effects that disturbance is not caused when a soil body is measured, and the device is good in integrity and high in test accuracy.

Description

technical field [0001] The invention belongs to the technical field of environmental rock and soil measurement, and relates to a simulation device and a measurement method for one-dimensional heat and moisture transfer of soil. Background technique [0002] As a porous medium, soil is generally composed of solid (soil particles), liquid (water), and gas three-phase substances. It is in a certain atmospheric environment, and under the combined action of various transport mechanisms, it will produce Migration of heat, water and air. In the natural environment, the heat-moisture migration process of soil is controlled by various effects, and its influencing factors include soil temperature, pressure, relative content of liquid phase and gas phase in soil, porosity and soil type, etc. Therefore, soil in nature The heat and moisture migration process is a complex energy exchange and material flow process under the interaction of the above factors, which has become a key content ...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 曾召田赵艳林吕海波韦昌富罗伯光颜荣涛
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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