Soil greenhouse gas collection box

Abstract

The utility model discloses a soil greenhouse gas collecting box which comprises a box body, a first gas inlet and a first gas outlet are formed in the box body, the first gas inlet is communicated with a gas collecting hood, a first valve is arranged between the gas collecting hood and the first gas inlet, the first gas outlet is communicated with a gas exhaust pump, and a second valve is arranged between the first gas outlet and the gas exhaust pump. The air outlet end of the exhaust pump communicates with a first conveying pipe, a third valve is installed on the first conveying pipe, a collecting bag is detachably connected to the first conveying pipe, a first partition plate and a second partition plate are fixedly connected into the box body and transversely arranged at intervals, a storage battery is fixedly connected to the air collecting cover, and the exhaust pump is electrically connected with the storage battery. And a plurality of supporting rods are fixedly connected between the box body and the gas collecting hood. According to the soil greenhouse gas collecting device, soil greenhouse gas is collected through the gas collecting hood, the collecting speed is greatly increased, the gas collecting hood can separate external air, the purity of the collected greenhouse gas is higher, and research is more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of soil greenhouse gas collection, in particular to a soil greenhouse gas collection box. Background Art

[0002] Soil greenhouse gases refer to gases produced in the soil that can cause a greenhouse effect. These gases mainly include carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Soil greenhouse gases are one of the important factors leading to global warming. In order to mitigate the impact of climate change, it is of great significance to study the production and emission mechanism of soil greenhouse gases.

[0003] In the prior art, patent publication number CN221594452U discloses a soil greenhouse gas collection box, wherein a transparent box cover is provided on the top of the collection box, an air pump is fixedly connected to the top of the transparent box cover, an air collecting bag is fixedly connected to one side of the air pump, an air pipe is fixedly connected to the other side of the air pump, a collection head is fixedly connected to the bottom of the air pipe, and an air inlet pipe is fixedly connected to the top of the transparent box cover.

[0004] When the above-mentioned device is used to collect greenhouse gases, the gas enters the collection box through the air inlet pipe. Since the air inlet pipe is at the top of the box cover, the incoming gas may be mixed with normal air. The gas filling the collection box may contain more air, which affects the accuracy of the measurement results and is very inconvenient to use.

[0005] Therefore, a soil greenhouse gas collection box is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a soil greenhouse gas collection box to solve the problems existing in the above-mentioned prior art, reduce the mixing of normal air in the process of collecting soil greenhouse gases, and improve the purity of the collected soil greenhouse gases.

[0007] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a soil greenhouse gas collection box, comprising:

[0008] A box body, a first air inlet and a first exhaust port are provided on the box body, the first air inlet is connected to an air collecting hood, a first valve is provided between the air collecting hood and the first air inlet, the first exhaust port is connected to an exhaust pump, a second valve is provided between the first exhaust port and the exhaust pump, the air outlet end of the exhaust pump is connected to a first delivery pipe, a third valve is installed on the first delivery pipe, a collecting bag is detachably connected to the first delivery pipe, a first partition and a second partition are fixedly connected to the box body, the first partition and the second partition are arranged horizontally and at intervals, the first partition and the second partition are located on two opposite side walls of the box body, the air collecting hood is fixedly connected to a battery, the exhaust pump is electrically connected to the battery, and a number of support rods are fixedly connected between the box body and the air collecting hood.

[0009] Preferably, a first air pipe is fixedly connected between the first air inlet and the air collecting hood, the box body and the air collecting hood are communicated through the first air pipe, and the first valve is installed on the first air pipe.

[0010] Preferably, the air collecting hood includes a hood top and side panels, the hood top is fixedly connected to the side panels, a first through hole is opened on the hood top, the first air pipe is connected to the first through hole, and the battery is fixedly connected to the hood top.

[0011] Preferably, a plurality of pedals are fixedly connected to the side panels, and the lower end of the side panels has a cutting edge.

[0012] Preferably, the first exhaust port is connected to a second air pipe, the second air pipe is connected to the air inlet end of the exhaust pump, and the second valve is installed on the second air pipe.

[0013] Preferably, the first delivery pipe is connected to a second delivery pipe, and a fourth valve is installed on the second delivery pipe.

[0014] Preferably, a gas concentration sensor is fixedly connected to the inner wall of the box body, a controller is fixedly connected to the outer wall of the box body, the gas concentration sensor is electrically connected to the controller, and the gas concentration sensor and the controller are both electrically connected to the battery.

[0015] The utility model discloses the following technical effects: In the device, a gas collection hood is buckled onto the soil from which gas is to be collected. The gas collection hood can be pressed downward with force so that the gas collection hood is partially inserted into the soil, thereby reducing the influence of external air. An exhaust pump is used to exhaust air from the box to facilitate the flow of gas within the box. A first valve is used to control the connection and closing between the gas collection hood and the first air inlet. A second valve is used to control the connection and closing between the box and the exhaust pump. A third valve is used to control the first delivery pipe. A collection bag can collect greenhouse gases, which can facilitate the transportation of greenhouse gases to a laboratory for testing. In the box in which the first and second baffles are staggered, when air flows into the box through the first air inlet, the airflow path will flow in a serpentine shape, which is conducive to exhausting the air within the box, thereby increasing the purity of the collected soil greenhouse gases. A battery supplies power to the exhaust pump. The utility model collects soil greenhouse gases through the gas collection hood, greatly improving the collection speed. The gas collection hood can also isolate external air, thereby increasing the purity of the collected greenhouse gases and making it more conducive to research. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the soil greenhouse gas collection box of the utility model;

[0018] Among them, 1. Box body; 2. First air inlet; 3. First exhaust port; 4. Gas collecting hood; 5. First valve; 6. Exhaust pump; 7. Second valve; 8. First delivery pipe; 9. Third valve; 10. Collection bag; 11. First partition; 12. Second partition; 13. Battery; 14. Support rod; 15. First air pipe; 16. Hood top; 17. Side panel; 18. Pedal; 19. Second air pipe; 20. Second delivery pipe; 21. Fourth valve; 22. Gas concentration sensor; 23. Controller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Reference Figure 1 The utility model provides a soil greenhouse gas collection box, comprising:

[0022] The box body 1 is provided with a first air inlet 2 and a first exhaust port 3, the first air inlet 2 is connected to an air collecting hood 4, a first valve 5 is arranged between the air collecting hood 4 and the first air inlet 2, the first exhaust port 3 is connected to an exhaust pump 6, a second valve 7 is arranged between the first exhaust port 3 and the exhaust pump 6, the air outlet end of the exhaust pump 6 is connected to a first delivery pipe 8, a third valve 9 is installed on the first delivery pipe 8, a collecting bag 10 is detachably connected to the first delivery pipe 8, a first partition 11 and a second partition 12 are fixedly connected in the box body 1, the first partition 11 and the second partition 12 are arranged horizontally and at intervals, the first partition 11 and the second partition 12 are located on two opposite side walls of the box body 1, a battery 13 is fixedly connected to the air collecting hood 4, the exhaust pump 6 is electrically connected to the battery 13, and a number of support rods 14 are fixedly connected between the box body 1 and the air collecting hood 4.

[0023] In this device, the gas collecting hood 4 is used to be buckled on the soil where gas needs to be collected. The gas collecting hood 4 can be pressed down hard so that the gas collecting hood 4 is inserted into a part of the soil, which can reduce the influence of external air. The exhaust pump 6 is used to discharge the air in the box body 1 to facilitate the flow of gas in the box body 1. The first valve 5 is used to control the connection and closing between the gas collecting hood 4 and the first air inlet 2. The second valve 7 is used to control the connection and closing between the box body 1 and the exhaust pump 6. The third valve 9 is used to control the first conveying pipe 8. The collection bag 10 can collect greenhouse gases. The collection bag 10 facilitates the transportation of greenhouse gases to the laboratory for testing. The first partition 11 and the second partition 12 are arranged in an alternating manner in the box body 1. When the air flow enters the box body 1 through the first air inlet 2, the air flow path will flow in a serpentine shape, which is conducive to discharging the air in the box body 1, thereby making the collected soil greenhouse gas higher in purity. The battery 13 supplies power to the exhaust pump 6.

[0024] According to a further optimized solution, a first air pipe 15 is fixedly connected between the first air inlet 2 and the air collecting hood 4 , the box body 1 and the air collecting hood 4 are communicated through the first air pipe 15 , and the first valve 5 is installed on the first air pipe 15 .

[0025] The first air pipe 15 is used to connect the air collecting hood 4 and the box body 1 , and the first valve 5 can control the first air pipe 15 .

[0026] According to a further optimization scheme, the air collecting hood 4 includes a hood top 16 and a side panel 17 . The hood top 16 is fixedly connected to the side panel 17 . A first through hole is provided on the hood top 16 . The first air pipe 15 is connected to the first through hole. The battery 13 is fixedly connected to the hood top 16 .

[0027] The side panels 17 are conveniently inserted into the soil, reducing the impact of external air on the collected gas. The greenhouse gases discharged from the soil will be concentrated in the gas collecting hood 4 and then enter the box body 1 through the first air pipe 15.

[0028] According to a further optimized solution, a plurality of pedals 18 are fixedly connected to the side panel 17 , and a cutting edge is provided at the lower end of the side panel 17 .

[0029] When in use, the user can step on the pedal 18 to facilitate the side panel 17 to enter the soil. The lower end of the side panel 17 is provided with a cutting edge to facilitate the side panel 17 to enter the soil.

[0030] According to a further optimized solution, the first exhaust port 3 is connected to a second air pipe 19 , the second air pipe 19 is connected to an air inlet end of the exhaust pump 6 , and the second valve 7 is installed on the second air pipe 19 .

[0031] The second air pipe 19 is used to connect the box body 1 and the exhaust pump 6 , and the second valve 7 can control the connection and closing of the second air pipe 19 .

[0032] According to a further optimized solution, the first delivery pipe 8 is connected to a second delivery pipe 20 , and a fourth valve 21 is installed on the second delivery pipe 20 .

[0033] The second delivery pipe 20 is used to discharge the air in the box 1. Before collecting the gas, the fourth valve 21 is opened, the third valve 9 is closed, and the exhaust pump 6 is turned on to discharge the air in the box 1 through the second delivery pipe 20.

[0034] To further optimize the solution, a gas concentration sensor 22 is fixedly connected to the inner wall of the box 1, and a controller 23 is fixedly connected to the outer wall of the box 1. The gas concentration sensor 22 is electrically connected to the controller 23, and both the gas concentration sensor 22 and the controller 23 are electrically connected to the battery 13.

[0035] The gas concentration sensor 22 is used to measure the soil greenhouse gas in the box 1, and can be used to measure CO2, CH4 or N2O, etc. The controller 23 can be used to display the gas concentration.

[0036] The method of using this device is as follows: when in use, place the device at the target position, cover the gas collection hood 4 on the soil, step on the pedal 18 with your foot, and make the side panel 17 enter the soil, so as to reduce the influence of external air, open the first valve 5, the second valve 7 and the fourth valve 21, close the third valve 9, start the exhaust pump 6, and first discharge the gas in the box 1 through the exhaust pump 6. When the air flow enters the box 1 through the first air inlet 2, the air flow path will flow in a serpentine shape, which is conducive to discharging the air in the box 1. After the gas in the box 1 is discharged for a certain period of time, close the fourth valve 21 and open the third valve 9 to allow the soil greenhouse gas to enter the collection bag 10, which is convenient for monitoring the greenhouse gas; when the collection of the soil greenhouse gas is completed, close the first valve 5 and the second valve 7 to isolate the inside of the box 1 from the outside, thereby ensuring the purity of the greenhouse gas in the box 1 and facilitating continued research on the greenhouse gas.

[0037] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0038] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A soil greenhouse gas collection box, characterized in that: include: A box body (1) is provided with a first air inlet (2) and a first air outlet (3), the first air inlet (2) is connected to an air collecting hood (4), a first valve (5) is provided between the air collecting hood (4) and the first air inlet (2), the first air outlet (3) is connected to an exhaust pump (6), a second valve (7) is provided between the first exhaust port (3) and the exhaust pump (6), the air outlet end of the exhaust pump (6) is connected to a first delivery pipe (8), a third valve (9) is installed on the first delivery pipe (8), and the first delivery pipe (8) is connected to the exhaust pump (6). (8) is detachably connected to a collecting bag (10), a first partition (11) and a second partition (12) are fixedly connected to the box body (1), the first partition (11) and the second partition (12) are arranged transversely and spaced apart, the first partition (11) and the second partition (12) are located on two opposite side walls of the box body (1), a battery (13) is fixedly connected to the gas collecting hood (4), the exhaust pump (6) is electrically connected to the battery (13), and a plurality of support rods (14) are fixedly connected between the box body (1) and the gas collecting hood (4).

2. The soil greenhouse gas collection box according to claim 1, characterized in that: A first air pipe (15) is fixedly connected between the first air inlet (2) and the air collecting hood (4); the box (1) and the air collecting hood (4) are communicated through the first air pipe (15); and the first valve (5) is installed on the first air pipe (15).

3. The soil greenhouse gas collection box according to claim 2, characterized in that: The air collecting hood (4) comprises a hood top (16) and a side panel (17); the hood top (16) is fixedly connected to the side panel (17); a first through hole is provided on the hood top (16); the first air pipe (15) is connected to the first through hole; and the battery (13) is fixedly connected to the hood top (16).

4. The soil greenhouse gas collection box according to claim 3, characterized in that: A plurality of pedals (18) are fixedly connected to the side circumference (17), and a cutting edge is provided at the lower end of the side circumference (17).

5. The soil greenhouse gas collection box according to claim 1, characterized in that: The first exhaust port (3) is connected to a second air pipe (19), the second air pipe (19) is connected to the air inlet end of the exhaust pump (6), and the second valve (7) is installed on the second air pipe (19).

6. The soil greenhouse gas collection box according to claim 1, characterized in that: The first delivery pipe (8) is connected to a second delivery pipe (20), and a fourth valve (21) is installed on the second delivery pipe (20).

7. The soil greenhouse gas collection box according to claim 1, characterized in that: A gas concentration sensor (22) is fixedly connected to the inner wall of the box (1), and a controller (23) is fixedly connected to the outer wall of the box (1). The gas concentration sensor (22) is electrically connected to the controller (23), and both the gas concentration sensor (22) and the controller (23) are electrically connected to the battery (13).

Images