Simple device for collecting trace greenhouse gas of in-vitro plant

Abstract

The utility model discloses a simple and portable device for collecting trace greenhouse gas of an in-vitro plant. The simple and portable device comprises a top cover and a gas collecting chamber, the top cover and the gas collecting chamber are both made of transparent tensile materials. A sampling port and a gas sampling valve are arranged in the center of the top cover. A long guide pipe is arranged below the sampling port to facilitate collection of gas in the middle of the gas collection chamber, and the top cover is connected with the gas collection chamber through threads to guarantee leakproofness of the gas collection chamber. The gas collecting valve is a three-way valve, and the gas flow direction can be controlled by rotating an upper button. The device is simple in structure, easy and convenient to operate, easy to carry and low in cost, collects trace greenhouse gas emitted by the in-vitro plant under the condition that the normal state of the plant is kept to the maximum extent, and can be repeatedly used.

Description

Technical Field

[0001] The utility model belongs to the field of collecting and monitoring in vitro plant gas samples, and in particular relates to a simple device for collecting trace greenhouse gases of in vitro plants. Background Art

[0002] Global warming and other global climate change issues have become a major concern of the international community. Greenhouse gases have a strong feedback effect on climate change due to their powerful greenhouse effect. Methane and nitrous oxide are trace greenhouse gases other than carbon dioxide, and their warming potential on a century-long scale is 25 times and 298 times that of carbon dioxide, respectively. Therefore, mitigating the emission of trace greenhouse gases is of great significance to mitigating global warming. Plant trace greenhouse gases are one of the important sources of greenhouse gases in terrestrial ecosystems. However, the existing collection system for plant trace greenhouse gases has not yet been perfected, and the sampling devices used in some studies have complex structures, cumbersome operations, low efficiency, and are not easy to carry and move. Summary of the invention

[0003] The utility model aims to solve the above problems and to provide a simple device for collecting trace greenhouse gases from isolated plants which is simple, easy to operate and carry.

[0004] A simple device for collecting trace greenhouse gases from isolated plants, the device comprises a top cover 1 and a gas collection chamber 2, a gas collection valve 3 and a sampling port 4 are arranged in the center of the top cover 1, a long guide tube 5 is arranged below the sampling port 4, and the long guide tube 5 extends into the middle of the gas collection chamber;

[0005] The connection between the top cover 1 and the gas sampling chamber 2 is sealed, and the connection between the middle part of the top cover 1 and the sampling port 4 is sealed;

[0006] The gas collection valve 3 is a three-way valve, and the gas flow direction can be controlled by rotating the upper button 7.

[0007] The top cover 1 is made of a transparent tension-resistant material.

[0008] The gas sampling chamber 2 is made of a transparent tension-resistant material.

[0009] A thread 6 is provided at the connection between the lower part of the top cover 1 and the gas collecting chamber 2 .

[0010] The lower part of the gas sampling valve 3 is connected to the sampling port 4. The left channel is the manual sampling port 8, which is provided with a rubber plug; the right side is the automatic sampling port 9, which is connected to the automatic sampler through a rubber hose.

[0011] The working principle of the present invention is described as follows:

[0012] The invention relates to a simple gas collection device used for collecting trace greenhouse gases from isolated plants.

[0013] When collecting gas, just rotate the top cover thread and put the in vitro plant to be tested into the gas collection chamber. The operation is convenient and quick. Rotate the button on the upper part of the gas collection valve to select different gas sampling methods.

[0014] The utility model discloses a simple device for collecting trace greenhouse gases from in vitro plants, which comprises a top cover and a gas collection chamber. Both the top cover and the gas collection chamber are made of transparent tension-resistant materials. A sampling port and a gas collection valve are arranged in the center of the top cover. A long conduit is arranged below the sampling port to facilitate the collection of gas in the middle of the gas collection chamber. The top cover is connected to the gas collection chamber by a thread to ensure the airtightness of the gas collection chamber. The gas collection valve is a three-way valve, and the gas flow direction can be controlled by rotating the upper button. The device has a simple structure, is easy to operate, is easy to carry, and is low in cost. It can collect trace greenhouse gases emitted by in vitro plants while keeping the plants in a normal state to the maximum extent, and can be reused many times.

[0015] Compared with the traditional device, the invention has the following beneficial results:

[0016] Compared with the traditional device, the utility model uses low-cost materials, is easy to use, and is suitable for sampling trace greenhouse gases in herbal in vitro plants. The gas sampling valve above the top cover is a three-way valve design, which can be used for manual sampling and can be connected to an automatic gas extraction device, which is convenient and efficient, saving time and effort. At the same time, the top cover and the gas sampling chamber are connected by threads, which can maximize the sealing of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of a simple device for collecting trace greenhouse gases from isolated plants.

[0018] Figure 2 This is a schematic diagram of the structure of two different connection modes of the gas production valve.

[0019] In the figure: 1. Top cover, 2. Gas sampling chamber, 3. Gas sampling valve, 4. Sampling port, 5. Long tube, 6. Thread, 7. Upper button, 8. Manual sampling port, 9. Automatic sampling port. DETAILED DESCRIPTION

[0020] Example 1 A simple device for collecting trace greenhouse gases from isolated plants

[0021] A simple device for collecting trace greenhouse gases from isolated plants, the device comprises a top cover 1 and a gas collection chamber 2, a gas collection valve 3 and a sampling port 4 are arranged in the center of the top cover 1, a long guide tube 5 is arranged below the sampling port 4, and the long guide tube 5 extends into the middle of the gas collection chamber;

[0022] The connection between the top cover 1 and the gas sampling chamber 2 is sealed, and the connection between the middle part of the top cover 1 and the sampling port 4 is sealed;

[0023] The gas collection valve 3 is a three-way valve, and the gas flow direction can be controlled by rotating the upper button 7;

[0024] The top cover 1 is made of a transparent tension-resistant material;

[0025] The gas collection chamber 2 is made of a transparent tension-resistant material;

[0026] There is a thread 6 at the connection between the lower part of the top cover 1 and the gas collection chamber 2;

[0027] The lower part of the gas sampling valve 3 is connected to the sampling port 4, the left channel is connected to the manual sampling port 8, the manual sampling port 8 is provided with a rubber plug, and the right side is the automatic sampling port 9, which is connected to the automatic sampler through a rubber hose.

[0028] The technical solution of the present invention is not limited to the following specific implementations, but also includes any combination of the specific implementations.

[0029] Place the in vitro plant to be tested into the gas collection chamber. Place the collection device in a suitable location. Arrange the plant leaves in the collection chamber and cover the top cover. Rotate the upper rotary button of the gas collection valve to connect the gas collection chamber with the left sealing pad channel. Use a syringe to regularly extract gas samples through the sealing pad to measure the content of trace greenhouse gases in the in vitro plant.

[0030] The difference from manual sampling is that the upper button of the gas sampling valve is rotated to connect the gas sampling chamber with the hose interface channel on the right, connect the rubber hose, and then connect the automatic gas extraction device to realize automatic timed sampling.

Claims

1. A simple device for collecting trace greenhouse gases from isolated plants, characterized in that: The device is composed of a top cover (1) and a gas sampling chamber (2), wherein a gas sampling valve (3) and a sampling port (4) are provided in the center of the top cover (1), and a long guide tube (5) is provided below the sampling port (4), and the long guide tube (5) extends into the middle of the gas sampling chamber; The top cover (1) is connected to the gas collection chamber (2); The gas collection valve (3) is a three-way valve, and the gas flow direction can be controlled by rotating the upper button (7); The lower part of the gas collection valve (3) is connected to a sampling port (4), the left side of which is a manual sampling port (8) provided with a rubber plug; the right side of which is an automatic sampling port (9) connected to an automatic sampler via a rubber hose.

2. A simple device for collecting trace greenhouse gases from isolated plants according to claim 1, characterized in that: The top cover (1) is made of a transparent tension-resistant material.

3. A simple device for collecting trace greenhouse gases from isolated plants according to claim 2, characterized in that: The gas collection chamber (2) is made of a transparent tension-resistant material.

4. A simple device for collecting trace greenhouse gases from isolated plants according to claim 3, characterized in that: A thread (6) is provided at the connection between the lower part of the top cover (1) and the gas collection chamber (2).

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