Building material volatility detection device simulating geothermal environment

Abstract

The invention belongs to the technical field of volatility detection, and particularly relates to a building material volatility detection device simulating a geothermal environment. The building material volatility detection device comprises a box, layer units, a differential temperature device, an isolating valve, a sampling pipe and a building material plate, a plurality of layer units are parallelly arranged inside the box to form a plurality of differential temperature volatilization layers, the building material plate vertically penetrates the layer units, the differential temperature device comprises a plurality of differential temperature ends with different temperature, each differential temperature end is correspondingly arranged on one layer unit, detection plates are verticallyarranged in different differential temperature volatilization layers, each differential temperature volatilization layer individually controls temperature through the differential temperature device, so that the surfaces of small-sized building materials generate different-gradient temperature difference, volatilization experiments are performed under the condition of keeping the temperature difference, the actual temperature gradient of the small-sized building materials under geothermal conditions is simulated, and volatility detection experiments are performed.

Description

technical field [0001] The invention belongs to the technical field of volatility detection, in particular to a building material volatility detection device for simulating a geothermal environment. Background technique [0002] Indoor air quality (IAQ) refers to the suitability of certain elements in the air for people's life and work in a specific environment. In the past, the air quality was mainly based on temperature and humidity. With the improvement of the airtightness of modern buildings , so that indoor harmful gases cannot be discharged, and harmful gases volatilized by decoration and building materials have become a new focus; [0003] The detection of the volatility of indoor building materials usually adopts a closed experimental warehouse, and small-sized building materials are set in the experimental warehouse, and the volatility of building materials is detected by controlling factors such as ambient temperature, humidity, ventilation rate and load rate. In ...

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Problems solved by technology

[0003] The detection of the volatility of indoor building materials usually adopts a closed experimental warehouse, and small-sized building materials are set in the experimental warehouse, and the volatility of building materials is detected by controlling factors such as ambient temperature, humidity, ventilation rate and load rate. In the living environment, because the indoor temperature is in different heating environments, different temperature areas will be formed indoors, and the reaction on the building material board will cause different temperature areas in different areas of the building materials. The size of the building materials, according to the conversion of a certain ratio, can simulate the indoor environment in terms of humidity and air change rate, but in the equally important temperature control, it is impossible to truly simulate the different local temperatures of building materials in the indoor environment. Due to the situation, the experimental results have deviations in reflecting the volatility of the panels in the real indoor environment. In the indoor environment using geothermal heating, the vertically placed panels have a higher temperature because the bottom is close to the geothermal heat source, and the temperature gradually decreases upwards. At the top, due to the return of warm air, the temperature of the top of the building materials will rise to a certain extent. Therefore, an experimental chamber that can simulate the surface temperature of indoor building materials under the geothermal heating environment has become an urgent problem to be solved.

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