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A variable volume soil gas collection device and its application method

A soil gas and collection device technology, which is applied in the direction of sampling devices, soil material testing, material inspection products, etc., can solve the problems of high cost, achieve the effect of solving the cost of funds, improving measurement accuracy, and reducing operating errors

Active Publication Date: 2022-02-15
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that when measuring soil respiration to change the measurement volume, it is necessary to configure multiple branching units, resulting in huge costs, and to provide a soil gas collection device with variable volume and its use method

Method used

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  • A variable volume soil gas collection device and its application method

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specific Embodiment approach 1

[0022] DETAILED DESCRIPTION One: Combination figure 1 In this embodiment, the present embodiment is a variable volume of soil gas acquisition device, which is composed of a hard body compartment 1, a liquid compartment 2, a gas conduit 3, and a valve 4, and the hard body compartment 1 is a cavity structure of one end. The function of the fastener 2 is a soft structure of both ends, and one end of the soft compartment 2 seals one end of the hard body compartment 1, and the other end of the soft compartment 2 is sealed with the gas catheter 3, and the valve 4 is disposed on the gas catheter 3.

specific Embodiment approach 2

[0023] DETAILED DESCRIPTION 2: Combination figure 1 The difference between the present embodiment and the particular embodiment is that the hard body compartment 1 is a cylinder or one end of the cylinder or one end of the opening. Others are the same as specific embodiments.

specific Embodiment approach 3

[0024] BEST MODE FOR CARRYING OUT THE INVENTION 3: The present embodiment and the specific embodiment of the specific embodiment are different from the body of the hard body compartment 1 as a metal or a hard plastic. Others are the same as those of the specific embodiments.

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Abstract

A variable-volume soil gas collection device and its use method relate to a soil gas collection device and its use method. The purpose of the present invention is to solve the problem that a plurality of branching units need to be configured when measuring soil respiration to change the measurement volume, resulting in huge cost. The soil gas collection device with variable volume consists of a hard cabin, a soft cabin, a gas conduit and a valve. Methods: 1. Soil loading and device assembly; 2. Equilibrium gas environment; 3. Injecting air; 4. Gas reaction process; 5. Taking gas samples; 6. Gas sample analysis. Advantages: within the limit of the maximum volume range, the volume in the cabin can be continuously changed. It solves the cost of volume switching and reduces the cost of experiments. The invention is mainly used for soil gas collection.

Description

Technical field [0001] The present invention relates to a soil gas acquisition device and a method of use thereof. Background technique [0002] Currently Wetland science often uses a fixed volume of a casing and a cylinder collection unit when measuring soil respiration. The gas of the soil environment was collected, and the experimental analysis was obtained after collecting the relevant data and conclusions. Even if the most advanced imported instrument (such as a brand greenhouse gas analysis DLT-100), the test gas is collected by a fixed volume, but only in the process of collecting gas and measurement analysis, the use of highly automated work processes, improved The speed and efficiency of each link are significantly improved, but the gas must be used to collect the gas. Before the test, it is necessary to set the volume data in advance in the software program, and when the measurement environment changes, it is necessary to change the measurement volume, need to be config...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/24G01N33/24
CPCG01N1/24G01N33/24
Inventor 刘晓辉王锡钢姜明
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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