Field gas cycle sampling device

Abstract

The invention relates to a field gas circulation sampling device, which solves the problem that due to the influence of crops, the field gas has large differences in different directions of the crops, and the representativeness of the gas sampled by the field sampling device is not good enough to cause fluctuations in detection results. The device includes sequentially connected sampling air pipes, air pumps, sampling solenoid valves, and sampling air bags. The front end of the sampling air pipe is also equipped with an air circulation device. The air circulation device includes a vertically arranged cylinder. A number of air inlets are provided, and a number of air outlets are evenly arranged tangentially around the lower end of the cylinder, and each air outlet is provided with a fan blowing outward. The rotating central axis of the cylinder, the cylinder can rotate around the rotating central axis, the rotating central axis is a hollow shaft that penetrates up and down, the base side is provided with a sampling end connected to the interior of the cylinder through the rotating central axis, and the front end of the sampling air pipe is connected to the sampling end. The invention utilizes the circulation device to drive the air circulation in the field, eliminates the uneven air distribution caused by field crops, and the detection result can accurately reflect the real situation in the field area.

Description

technical field [0001] The invention relates to a sampling instrument, in particular to a field gas circulation sampling device. Background technique [0002] With the development of scientific research work, researchers have made more and more detailed research on the growth environment of field crops. Not only the soil composition, fertilizer type, and fertilization time in the crop growing field are studied, but also the climate conditions, temperature and humidity, light time, light intensity, etc. of each day in the process of crop growth are involved. With the further refinement of the research work, the researchers proposed to sample the air in the crop growth field to study the interaction between the field air and the crop growth process. Traditional field gas sampling generally adopts manual sampling, which requires researchers to regularly go to the field to manually sample. This sampling method has a great human influence, and in order to make the sampled gas mo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that due to the influence of crops, the field gas has large differences in the crop directions, and the representativeness of the gas sampled by the field sampling device is not good, resulting in fluctuations in detection results, and provides a field gas circulation sampling device

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