Remote control sampling device for greenhouse gas emission of small water body
By designing a remote control sampling device, using a remote sensor to control the movement of the hull and the air pump to control the extraction of gas, the problems of inflexible sampling and high labor costs in the prior art are solved, and flexible and efficient monitoring of greenhouse gases in small water bodies are achieved.
Patent Information
- Application Number
- CN202420736908.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-11
AI Technical Summary
When collecting water greenhouse gases, the existing float static flux tanks have inflexible sampling points and high manual sampling costs, which limits the monitoring of greenhouse gas sampling in remote water bodies in the field.
A remote control sampling device for greenhouse gas emissions in small water bodies is designed, using a remote sensor to control the movement of the hull, combined with an air pump and a control valve system, to achieve the extraction and sampling of greenhouse gases in the gas collection chamber, and supports flexible movement on the water surface and multiple continuous sampling.
The device controls the movement of the hull through a remote sensor, realizes flexible sampling on the water surface, reduces labor costs, improves sampling efficiency and accuracy, and can effectively monitor the greenhouse gas emissions of small water bodies.
Smart Images
Figure CN222689498U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of greenhouse gas sampling in small water bodies, and in particular relates to a remote control sampling device for greenhouse gas emission in small water bodies. Background Art
[0002] There are three main monitoring methods for measuring greenhouse gas emissions from water bodies: First, remote sensing monitoring methods: The greenhouse gas emission monitoring method based on remote sensing monitoring mainly estimates greenhouse gas emission fluxes by relying on the physical mechanism of greenhouse gas thermal imaging in the infrared band. This method has the advantage of a large observation scale, but is only applicable to large lakes and oceans that are less affected by water-land gas exchange, and is not suitable for estimating greenhouse gas emissions from small water bodies;
[0003] The second is the thin boundary layer formula method: the thin boundary layer formula method uses a container of a certain size to sample the water body and measure the greenhouse gas content of the container, and then uses the water-gas exchange formula to estimate the greenhouse gas emission flux in the water body. This operation is relatively simple and time-saving, but because the greenhouse gas emission flux is estimated by simply simulating the gas exchange at the water-air interface, its calculation accuracy is low;
[0004] Third, floating static flux box technology: The floating static flux box technology is modified based on the static flux box technology of terrestrial soil greenhouse gas emissions. It is suitable for observing greenhouse gas emissions from water bodies and is currently a relatively high-precision measurement method for field measurement of greenhouse gas emission fluxes from water bodies.
[0005] The floating static flux box has the following problems when collecting gases: First, the sampling point layout is not flexible: the sampling device needs to be tied by ropes or anchors, which means that only a small number of typical sample points can be selected for long-term observation when observing greenhouse gas emissions from water bodies in the field, which is not conducive to large-sample and short-term observations of greenhouse gas emissions from water bodies in the field;
[0006] Secondly, sampling is inconvenient and labor costs are high: when using existing floating static flux boxes to observe greenhouse gas emissions from water bodies, it is necessary to manually go into the water or row a boat to a fixed sampling point for sampling each time. This manual sampling method is greatly limited to greenhouse gas sampling and monitoring in remote water bodies in the wild. Utility Model Content
[0007] The utility model aims to provide a remote control sampling device for greenhouse gas emissions from small water bodies, so as to solve the technical problem of using existing floating static flux boxes to observe greenhouse gas emissions from water bodies as proposed in the background technology, and requiring manual entry or rowing to a fixed sampling point for sampling each time. This manual sampling method is greatly limited in the technical problem of greenhouse gas sampling and monitoring in remote water bodies in the wild.
[0008] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a remote control sampling device for greenhouse gas emissions from a small water body, comprising a pair of hulls, the pair of hulls are connected by a first connecting plate and a second connecting plate, a gas collection chamber is installed between the first connecting plate and the second connecting plate, an air pump is installed on the first connecting plate, the air suction port of the air pump is connected to the air inlet opened on one side of the gas collection chamber through a pipeline, a control valve is installed on the air supply pipe connected to the air outlet end of the air pump, the air outlet end of the control valve is connected to a hose, and the air outlet end of the hose is connected to the air inlet valve of the air sampling bag.
[0009] Preferably, at least six control valves are provided, and the air pump and the control valves are located at the front of the hull, and the air pump controls the extraction rate of the greenhouse gas in the gas collection chamber and the switching of the six control valves.
[0010] Preferably, a storage frame is provided at the rear side of the hull, and the air collection bag is located in the storage frame.
[0011] Preferably, an exhaust valve is provided on one side of the gas collection bag.
[0012] Preferably, the hull is 49 cm long and 37 cm wide, and the operation of the hull is controlled by a remote sensor.
[0013] Preferably, a gas outlet is provided on the other side of the gas collection chamber, the gas outlet and the gas inlet are diagonally distributed, and the gas collection chamber has an opening only at the bottom.
[0014] Preferably, when collecting gas, 1 / 5 of the height of the gas collection chamber is sunk into the water body to form a sealed water-gas exchange interface.
[0015] Preferably, slide rails are provided on both sides of the bottom of the gas collection chamber, a movable plate is slidably arranged in the slide rails, a second slide groove is opened on one side of the movable plate, a symmetrical movable block is slidably arranged in the second slide groove, a brush is connected to the lower side of the movable block, and the brush is in contact with the inner wall of the gas collection chamber.
[0016] Preferably, a first sliding groove is provided on one side of the sliding rail, and sliding blocks are provided at both ends of the movable plate, and the sliding blocks are slidably connected to the first sliding groove.
[0017] Preferably, the two moving blocks are connected via a spring.
[0018] The utility model of a small water body greenhouse gas emission remote control sampling device has the following advantages:
[0019] 1. This remote control sampling device for greenhouse gas emissions from small water bodies controls the movement of the hull through a remote sensor, so that the hull can be moved at any position on the water surface. Sampling observations can be carried out freely and flexibly at different positions in lakes, reservoirs and ponds according to actual needs, solving the problems of inconvenient sampling and high labor costs of existing sampling devices. At the same time, an air pump is used to control the vacuum rate of greenhouse gases in the gas collection chamber and the switching of 6 air valves, and each air valve is connected to a gas sampling bag through a pipeline. During the sampling stage, the air pump is in a continuous working state, and the single sampling time is 15 minutes; after a single sampling is completed, the corresponding air valve will be closed, and the next working air valve will be opened, so that 6 continuous samplings can be completed. After multiple cross-validation tests, it was found that the air pump vacuum rate was maintained at 0.1m / s~0.5m / s, which can effectively ensure the stability of greenhouse gas sampling.
[0020] 2. A remote control sampling device for greenhouse gas emissions from small water bodies has an opening at the bottom of a gas collection chamber and a movable brush installed inside. When not in use, the four surfaces inside the gas collection chamber are cleaned by the movable brush, eliminating the need to disassemble the gas collection chamber for cleaning, making the device more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 It is a schematic plan view of the hull structure of the utility model;
[0024] Figure 3 It is a partial schematic diagram of the hull structure of the utility model;
[0025] Figure 4 This is a schematic diagram of the installation state of the control valve of the utility model;
[0026] Figure 5 This is a schematic diagram of the connection state of the gas collection bag and the hose structure of the utility model;
[0027] Figure 6 This is a schematic diagram of the internal structure of the gas collection chamber of the utility model;
[0028] Figure 7 This is a schematic diagram of the structure of the movable plate of the utility model;
[0029] Figure 8 For the utility model Figure 7 Schematic diagram of the structure at point A.
[0030] Explanation of the markings in the figure: 1. Hull; 2. First connecting plate; 3. Air pump; 4. Air pipe; 5. Control valve; 6. Hose; 7. Air sampling bag; 8. Storage frame; 9. Gas collection chamber; 10. Air outlet; 11. Air inlet; 12. Second connecting plate; 13. Exhaust valve; 14. Inlet valve; 15. Slide rail; 16. First slide groove; 17. Moving plate; 18. Sliding block; 19. Second slide groove; 20. Spring; 21. Moving block; 22. Brush; 23. Remote sensor. DETAILED DESCRIPTION
[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0034] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0036] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below with reference to the accompanying drawings, which is a remote control sampling device for greenhouse gas emissions from a small water body.
[0037] like Figure 1-Figure 8 As shown, the utility model is a remote control sampling device for greenhouse gas emissions from a small water body, comprising a pair of hulls 1, which are connected by a first connecting plate 2 and a second connecting plate 12, wherein the hull 1 is 49 cm long and 37 cm wide, and the first connecting plate 2 and the second connecting plate 12 are 11 cm wide and 49 cm long. The use of a catamaran type is beneficial to ensuring the stability of the device running on the water surface when there are wind and waves on the water surface.
[0038] The operation of the hull 1 is controlled by the remote sensor 23, and the built-in power and control components of the hull 1 include a main motor, a lithium battery, a control mainboard and a remote sensor 23. The hull 1 uses a motor as the power source of the device, and the performance indicators are: 12V3000-6000 rpm, torque 6.5KG / cm, torque 0.63N.m1.05A (no load), using 2 DC motor drivers to control the motor speed and forward and reverse rotation (driver RS485 communication), hull 1 uses 2 groups of lithium batteries to provide power, the lithium battery performance is 12V6800mAh, which can guarantee 150 minutes The bell exhaust motor keeps running continuously. The control main board is the circuit control device of the whole hull 1. It is mainly equipped with power interface, ADC analog interface, 485 communication interface, SDI12 communication interface and other interfaces to effectively ensure the automatic control and communication of the device. The remote sensor 23 is a manually operated remote sensing component, which communicates with the control board on the hull 1 through the RoLa wireless transceiver. By operating the remote sensor 23, the user can control the catamaran's forward, turning and reverse within a distance of 500m, and control the sampling process (including the control of sampling start, end, sampling time and sampling number).
[0039] A gas collecting chamber 9 is installed between the first connecting plate 2 and the second connecting plate 12. The gas collecting chamber 9 is arranged in the middle position of the catamaran. It is a cubic container with a volume of 150*150*150mm, only the bottom is open, and the other 5 sides are sealed. A pair of air inlet 11 and air outlet 10 are diagonally arranged at the top of the gas collecting chamber 9. Under the action of the gravity of the hull 1 itself, 1 / 5 of the height of the gas collecting chamber 9 sinks into the water body, forming a sealed water-gas exchange interface, which ensures that the entire sampling process is not affected by external gases.
[0040] An air pump 3 is installed on the first connecting plate 2, and the air suction port of the air pump 3 is connected to the air inlet 11 opened on one side of the gas collection chamber 9 through a pipeline. A control valve 5 is installed on the gas supply pipe 4 connected to the air outlet end of the air pump 3, and the air outlet end of the control valve 5 is connected to the hose 6, and the air outlet end of the hose 6 is connected to the air inlet valve 14 of the gas collection bag 7.
[0041] It can be seen that the sampling assembly is composed of an air pump 3, 6 control valves 5, a hose 6 and 6 gas sampling bags 7, wherein the control valve 5 is an ordinary air valve. The air pump 3 and 6 control valves 5 are arranged at the front of the hull 1. The air pump 3 controls the extraction rate of greenhouse gases in the gas collection chamber 9 and the switching of the 6 control valves 5. Each control valve 5 is connected to a gas sampling bag 7 through a hose 6. During the sampling stage, the air pump 3 is in a continuous working state, and the single sampling time is 15 minutes; after a single sampling is completed, the corresponding control valve 5 will be closed, and the next working control valve 5 will be opened, so that 6 continuous samplings can be completed. After multiple cross-validation tests, it was found that the extraction rate of the air pump 3 was maintained at 0.1m / s~0.5m / s, which can effectively ensure the stability of greenhouse gas sampling.
[0042] The gas collection bag 7 is made of thickened aluminum foil and has a capacity of 100 ml. The gas collection bag 7 has two valves, namely an exhaust valve 13 and an intake valve 14, one of which can be used as an air outlet and the other as an air inlet, which is convenient to use and also convenient to clean. The valve is closed when it is rotated clockwise to the bottom, and opened when it is rotated counterclockwise 1 / 2 turn. The operation is simple and convenient, and the material is stable and the sealing is good.
[0043] A storage frame 8 is provided at the rear side of the hull 1 , and the air collection bag 7 is located in the storage frame 8 .
[0044] Since the gas collection chamber 9 is not easy to disassemble, in order to clean it, slide rails 15 are arranged on both sides of the bottom of the gas collection chamber 9, and a movable plate 17 is slidably arranged in the slide rail 15. A second slide groove 19 is opened on one side of the movable plate 17, and a symmetrical movable block 21 is slidably arranged in the second slide groove 19. The lower side of the movable block 21 is connected to a brush 22, and the brush 22 is in contact with the inner wall of the gas collection chamber 9. The movable block 21 slides in the second slide groove 19, so that the brush 22 cleans the inner wall of the gas collection chamber 9. When the movable plate 17 slides, the brush 22 cleans the other two sides of the gas collection chamber 9.
[0045] A first slide groove 16 is provided on one side of the slide rail 15, and sliders 18 are provided at both ends of the movable plate 17. The sliders 18 are slidably connected to the first slide groove 16 to prevent the movable plate 17 from being unstable when the gas collection chamber 9 is located in water.
[0046] The two moving blocks 21 are connected via a spring 20 , which not only increases the stability between the two brushes 22 , but also facilitates the reset of the brushes 22 after the brushes 22 are moved.
[0047] A remote control sampling device for greenhouse gas emissions from small water bodies has a working principle as follows: after the hull 1 is controlled to move to the sampling position by a remote sensor 23, the gas is sucked from the gas collection chamber 9 by the suction of the air pump 3, so that the gas enters the hose 6 through the opened control valve 5 and is stored in the corresponding gas collection bag 7. The air pump 3 controls the suction rate of the greenhouse gas in the gas collection chamber 9 and the switching of the six control valves 5. Each control valve 5 is connected to a gas collection bag 7 through the hose 6. During the sampling stage, the air pump 3 is in a continuous working state, and the single sampling time is 15 minutes. After the single sampling is completed, the corresponding control valve 5 will be closed, and the next working control valve 5 will be opened, so that six consecutive samplings can be completed.
[0048] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A remote control sampling device for greenhouse gas emissions from a small water body, comprising a pair of hulls (1), characterized in that: A pair of the hulls (1) are connected via a first connecting plate (2) and a second connecting plate (12); a gas collection chamber (9) is installed between the first connecting plate (2) and the second connecting plate (12); an air pump (3) is installed on the first connecting plate (2); an air suction port of the air pump (3) is connected to an air inlet (11) opened on one side of the gas collection chamber (9) via a pipeline; a control valve (5) is installed on a gas delivery pipe (4) connected to the air outlet of the air pump (3); an air outlet of the control valve (5) is connected to a hose (6); and an air outlet of the hose (6) is connected to an air inlet valve (14) of a gas collection bag (7).
2. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 1 is characterized by: At least six control valves (5) are provided, and the air pump (3) and the control valves (5) are located at the front of the hull (1). The air pump (3) controls the extraction rate of the greenhouse gas in the gas collection chamber (9) and the switching of the six control valves (5).
3. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 2 is characterized in that: A storage frame (8) is provided at the rear side of the hull (1), and the air collection bag (7) is located in the storage frame (8).
4. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 3 is characterized by: An exhaust valve (13) is provided on one side of the gas collection bag (7).
5. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 4 is characterized in that: The hull (1) is 49 cm long and 37 cm wide, and the operation of the hull (1) is controlled by a remote sensor (23).
6. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 5 is characterized by: An air outlet (10) is provided on the other side of the gas collection chamber (9), the air outlet (10) and the air inlet (11) are diagonally distributed, and the gas collection chamber (9) has an opening only at the bottom.
7. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 6 is characterized by: When collecting gas, 1 / 5 of the height of the gas collection chamber (9) sinks into the water body, forming a sealed water-gas exchange interface.
8. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 1 is characterized by: Slide rails (15) are arranged on both sides of the bottom of the gas collection chamber (9), a movable plate (17) is slidably arranged in the slide rails (15), a second slide groove (19) is provided on one side of the movable plate (17), a symmetrical movable block (21) is slidably arranged in the second slide groove (19), a brush (22) is connected to the lower side of the movable block (21), and the brush (22) is in contact with the inner wall of the gas collection chamber (9).
9. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 8, characterized in that: A first sliding groove (16) is provided on one side of the sliding rail (15), and sliding blocks (18) are provided at both ends of the movable plate (17), and the sliding blocks (18) are slidably connected to the first sliding groove (16).
10. The remote control sampling device for greenhouse gas emissions from small water bodies according to claim 9, characterized in that: The two moving blocks (21) are connected via a spring (20).