Collecting device for crop greenhouse gas emission
A modular greenhouse gas sampling system with adjustable height and air circulation ensures uniform gas distribution and efficient collection from tall crops by adapting to varying crop heights.
Patent Information
- Application Number
- CN202422151473.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The prior art is difficult to adapt to high-stem crops of different heights, especially corn, etc., which leads to inconvenient gas collection.
A split-type splicing collection device is designed, which consists of a combination of the lower box, an intermediate box and an upper box. Combined with the base, the total height of the box can be adjusted according to the height of the crop, and a built-in fan can improve gas distribution.
Adaptive collection of high straw crops during different growth periods is achieved, ensuring the uniformity of gas in the box and improving the collection efficiency.
Smart Images
Figure CN223107352U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of greenhouse gas collection, in particular to a device for collecting the greenhouse gas emission of crops. Background Technique
[0002] Studying the greenhouse gas emission law of farmland ecosystems and regulating greenhouse gas emissions through measures such as planting management and water and fertilizer management has become a hot topic. In the research of greenhouse gases in farmland, the most basic and crucial link is gas sample collection. Currently, the static chamber method is commonly used for gas collection. Its principle is to cover a closed chamber with a known volume above the soil or plants to isolate the gas inside the chamber from the external atmosphere. Gas samples in the chamber are extracted at regular intervals, and a gas chromatograph is used to measure the concentration of greenhouse gases, and then the emission rate is calculated.
[0003] For tall-stem plants, the greenhouse gas collection chamber can only be placed between crop rows or the crops can be covered in the chamber. Due to the different heights of the crops, a collection chamber with a fixed height cannot adapt to different crops. Especially for tall-stem crops such as corn, it is extremely inconvenient to collect gas. Content of the Utility Model
[0004] The utility model provides a device for collecting the greenhouse gas emission of crops to solve the problems in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A device for collecting the greenhouse gas emission of crops includes a base and a combined chamber. The top of the base is provided with an internal thread port, and the bottom of the combined chamber is provided with an external thread interface, and is threadedly connected to the base through the external thread interface and the internal thread port. A fan is installed at the inner top of the combined chamber. A pressure gauge and a regulating valve are respectively installed at the top of the combined chamber. An air pump is installed at the top of the combined chamber, and the input end of the air pump is connected to the regulating valve through a hose;
[0006] The combined chamber includes a lower chamber, a middle chamber, an upper chamber and a sealing ring. Inner snap rings are provided at the tops of the lower chamber and the middle chamber, and outer snap rings are provided at the bottoms of the middle chamber and the upper chamber. The lower chamber and the middle chamber are tightly clamped and connected through the inner snap ring and the outer snap ring. The sealing ring is located between the lower chamber and the middle chamber. The middle chamber and the upper chamber are tightly clamped and connected through the inner snap ring and the outer snap ring. The sealing ring is located between the middle chamber and the upper chamber.
[0007] Further, fixing holes are opened at the four circumferences of the bottom of the base, and a sealing gasket is arranged between the base and the combined chamber.
[0008] Further, a digital display temperature and humidity meter is installed on the front side of the combined chamber, and the detection end of the digital display temperature and humidity meter is located inside the combined chamber.
[0009] Further, the blade part of the fan is located inside the combined box, and its motor part is located outside the combined box.
[0010] Further, the detection end of the pressure gauge is located inside the combined box, and one port of the regulating valve is located inside the combined box.
[0011] Further, a sampling tube is connected to the output end of the air pump, and the external thread interface is arranged at the bottom of the lower box body.
[0012] Compared with the prior art, the present utility model provides a device for collecting crop greenhouse gas emissions, having the following beneficial effects:
[0013] For the device for collecting crop greenhouse gas emissions, the collecting box part adopts a split splicing form, which is composed of a lower box body, an intermediate box body and an upper box body in combination. With the use of the base, they can be combined with each other pairwise, and the combined form can be switched according to the height of the crop, so as to adjust the total height of the box body, adapt to the use in each growth period of high-stalk crops. At the same time, the built-in fan is used to move the air flow to improve the gas distribution in the box, and when sampling high-stalk crops, the uniformity of the air in the box is ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is a split view of the present utility model;
[0016] Figure 3 is a structural diagram of the combined box body of the present utility model.
[0017] In the figure: 1. Base; 11. Internal thread port; 12. Fixed hole; 2. Combined box body; 21. External thread interface; 22. Lower box body; 23. Intermediate box body; 24. Upper box body; 25. Sealing ring; 26. Inner snap ring; 27. Outer snap ring; 3. Fan; 4. Pressure gauge; 5. Regulating valve; 6. Air pump; 7. Sealing gasket; 8. Digital display temperature and humidity meter; 9. Sampling tube. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figure 1- Figure 3, the present utility model discloses a device for collecting greenhouse gas emissions of crops, including a base 1 and a combined box body 2. The top of the base 1 is provided with an internal thread port 11, and the bottom of the combined box body 2 is provided with an external thread interface 21, and is threadedly connected to the base 1 through the external thread interface 21 and the internal thread port 11. A fan 3 is installed at the inner top of the combined box body 2. A pressure gauge 4 and a regulating valve 5 are respectively installed at the top of the combined box body 2. An air pump 6 is installed at the top of the combined box body 2, and the input end of the air pump 6 is connected to the regulating valve 5 through a hose. The collection box part adopts a split splicing form, which is composed of a lower box body 22, a middle box body 23 and an upper box body 24. Cooperating with the use of the base 1, they can be combined with each other two by two, and the combined form can be switched according to the height of the crops, so as to adjust the total height of the box body and adapt to the use in each growth period of high-stalk crops. At the same time, the built-in fan 3 is used to move the air flow to improve the gas distribution in the box. When sampling high-stalk crops, the uniformity of the air in the box is ensured;
[0020] The combined box body 2 includes a lower box body 22, a middle box body 23, an upper box body 24 and a sealing ring 25. The tops of the lower box body 22 and the middle box body 23 are both provided with internal snap rings 26, and the bottoms of the middle box body 23 and the upper box body 24 are both provided with external snap rings 27. The lower box body 22 and the middle box body 23 are tightly fitted and clamped through the internal snap ring 26 and the external snap ring 27. The sealing ring 25 is located between the lower box body 22 and the middle box body 23. The middle box body 23 and the upper box body 24 are tightly fitted and clamped through the internal snap ring 26 and the external snap ring 27. The sealing ring 25 is located between the middle box body 23 and the upper box body 24.
[0021] Specifically, fixing holes 12 are opened around the bottom of the base 1, and a sealing gasket 7 is arranged between the base 1 and the combined box body 2.
[0022] In this implementation scheme, the collection box part is covered above the plant. The base 1 is fixed to the soil around the plant through the fixing holes 12 in cooperation with ground nails, and the sealing gasket 7 is used to completely seal the contact surface between the base 1 and the combined box body 2.
[0023] Specifically, a digital temperature and humidity meter 8 is installed on the front side of the combined box body 2, and the detection end of the digital temperature and humidity meter 8 is located inside the combined box body 2.
[0024] In this implementation scheme, the digital temperature and humidity meter 8 can accurately measure the temperature and relative humidity data of the air inside or outside the box, and display the data on the digital screen in real time, which can help ensure that the environmental conditions in the experiment or production process meet specific requirements.
[0025] Specifically, the blade part of the fan 3 is located inside the combined box body 2, and its motor part is located outside the combined box body 2.
[0026] In this embodiment, after the fan 3 is powered on and operates, it is used to improve the gas distribution inside the box, and ensure the uniformity of the air inside the box when sampling high-stalk crops.
[0027] Specifically, the detection end of the pressure gauge 4 is located inside the combined box body 2, and one port of the regulating valve 5 is located inside the combined box body 2.
[0028] In this embodiment, the pressure gauge 4 can display the pressure inside the box in real time, enabling the operator to understand and master the pressure situation inside the box. The regulating valve 5 is a device that controls various parameters such as the flow rate, pressure, and temperature of the fluid by changing the opening degree of the valve inside it.
[0029] Specifically, the output end of the air pump 6 is connected to a sampling tube 9, and the external thread interface 21 is arranged at the bottom of the lower box body 22.
[0030] In this embodiment, the air pump 6 is used to extract the greenhouse gas inside the box and connect it to a collection container through the sampling tube 9.
[0031] During use, the collection box part adopts a split splicing form, which is composed of a lower box body 22, an intermediate box body 23, and an upper box body 24. In cooperation with the use of the base 1, they can be combined with each other pairwise, and the combined form can be switched according to the height of the crop, so as to adjust the total height of the box body, adapt to the use in each growth period of high-stalk crops. At the same time, the built-in fan 3 is used to move the air flow, improve the gas distribution inside the box, and ensure the uniformity of the air inside the box when sampling high-stalk crops.
[0032] In summary, for this crop greenhouse gas emission collection device, the collection box part adopts a split splicing form, which is composed of a lower box body 22, an intermediate box body 23, and an upper box body 24. In cooperation with the use of the base 1, they can be combined with each other pairwise, and the combined form can be switched according to the height of the crop, so as to adjust the total height of the box body, adapt to the use in each growth period of high-stalk crops. At the same time, the built-in fan 3 is used to move the air flow, improve the gas distribution inside the box, and ensure the uniformity of the air inside the box when sampling high-stalk crops.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A crop greenhouse gas emission collection device, comprising a base (1) and a combined box body (2), characterized in that: The top of the base (1) is provided with an internal thread port (11), the bottom of the combined box body (2) is provided with an external thread interface (21), and the combined box body (2) is threadedly connected to the base (1) through the external thread interface (21) and the internal thread port (11). A fan (3) is installed at the inner top of the combined box body (2). A pressure gauge (4) and a regulating valve (5) are respectively installed at the top of the combined box body (2). An air pump (6) is installed at the top of the combined box body (2), and the input end of the air pump (6) is connected to the regulating valve (5) through a hose; The combined box body (2) includes a lower box body (22), an intermediate box body (23), an upper box body (24) and a sealing ring (25). The tops of the lower box body (22) and the intermediate box body (23) are both provided with internal snap rings (26). The bottoms of the intermediate box body (23) and the upper box body (24) are both provided with external snap rings (27). The lower box body (22) and the intermediate box body (23) are tightly fitted and clamped through the internal snap ring (26) and the external snap ring (27). The sealing ring (25) is located between the lower box body (22) and the intermediate box body (23). The intermediate box body (23) and the upper box body (24) are tightly fitted and clamped through the internal snap ring (26) and the external snap ring (27). The sealing ring (25) is located between the intermediate box body (23) and the upper box body (24).
2. The crop greenhouse gas emission collection device according to claim 1, wherein: Fixing holes (12) are formed around the bottom of the base (1), and a sealing gasket (7) is arranged between the base (1) and the combined box body (2).
3. The crop greenhouse gas emission collection device according to claim 1, characterized in that: A digital display temperature and humidity meter (8) is installed on the front side of the combined box body (2), and the detection end of the digital display temperature and humidity meter (8) is located inside the combined box body (2).
4. The crop greenhouse gas emission collection device according to claim 1, characterized in that: The blade part of the fan (3) is located inside the combined box body (2), and its motor part is located outside the combined box body (2).
5. The crop greenhouse gas emission collection device according to claim 1, wherein: The detection end of the pressure gauge (4) is located inside the combined box body (2), and one port of the regulating valve (5) is located inside the combined box body (2).
6. The crop greenhouse gas emission collection device according to claim 1, characterized in that: The output end of the air pump (6) is connected to a sampling tube (9), and the external thread interface (21) is arranged at the bottom of the lower box body (22).