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Adjustable open top type fumigation system

An open-top, adjustable technology, applied in the field of environmental simulation, can solve problems such as limitation, plant damage, and elevation, and achieve the effect of light weight, high light transmittance, and cleanliness.

Inactive Publication Date: 2019-07-05
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] There are some deficiencies in the existing fumigation system. For example, the existing fumigation system often has uneven gas distribution, which affects the experimental results and is easy to cause damage to the plants. For example, the height of the existing fumigation system is usually fixed. When When the plants grow faster, it is difficult for the fumigation system to rise with the height of the plants, thus limiting the experiment

Method used

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  • Adjustable open top type fumigation system
  • Adjustable open top type fumigation system
  • Adjustable open top type fumigation system

Examples

Experimental program
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Embodiment

[0036] Utilize the device of the present invention to carry out fumigation experiment, research under the condition that ozone concentration raises, the change of the volatile organic compound (BVOCs) that plant produces: the plant of research is poplar, gas generator is ozone generator.

[0037] Research background: At present, regional photochemical pollution has become one of the challenges China is facing, especially in developed regions (such as Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta, etc.) in summer, where the ozone concentration often reaches hundreds of ppbv. As we all know, ozone is a typical plant toxin. It is generally believed that when the ozone concentration is higher than 40ppbv, ozone will cause toxic effects on plants. In fact, the photosynthesis and other processes of plants will be accompanied by the emission of BVOCs, and these BVOCs will participate in photochemical reactions after being emitted into the air. To put it simply, the BVOC...

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Abstract

The invention discloses an adjustable open top type fumigation system, which comprises a dust removing device (20), a gas generator (30), an axial flow fan (50) and a box main body (60), wherein the box main body (60) comprises a bottom frame (61) and a top frame (63), the bottom frame (61) and the top frame (63) are detachably sealed and connected, the bottom surface of the bottom frame (61) is provided with a metal plate (611), the middle portion of the bottom frame (61) is provided with a grating (612), and the side surfaces of each frame and the bottom surface of the bottom frame (61) areencapsulated by means of a transparent plastic thin film (613); the top part of the top frame (63) is open; and the dust removing device (20), the gas generator (30) and the axial flow fan (50) are sequentially communicated by means of a pipeline (40), the axial flow fan (50) is connected onto the side surface, arranged between the metal plate (611) and the grating (612), of the bottom frame (61)by means of a pipeline (70), and the axial flow fan (50) is communicated with the box main body (60).

Description

technical field [0001] The invention relates to the technical field of environment simulation, and more particularly relates to an adjustable open-top fumigation system. Background technique [0002] The rapid process of industrialization and urbanization has led to unprecedented changes in the earth's atmospheric environment, such as the rapid increase in the concentration of carbon dioxide in the atmosphere and surface ozone, and the intensification of particulate matter pollution. To study plant responses to climate change under controlled conditions, researchers typically use open-top fumigation systems for simulation studies. [0003] There are some deficiencies in the existing fumigation system. For example, the existing fumigation system often has uneven gas distribution, which affects the experimental results and is easy to cause damage to the plants. For example, the height of the existing fumigation system is usually fixed. When When the plants grow faster, it is ...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0004G01N33/0098
Inventor 刘俊锋王玉征刘志国牟玉静张成龙张圆圆刘鹏飞
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI