Gas monitoring equipment suitable for water-gas interface

Abstract

The utility model relates to the technical field of greenhouse gas monitoring, in particular to gas monitoring equipment suitable for a water-gas interface, which comprises a gas analysis device and a plurality of collecting covers with openings at the bottoms, the plurality of collecting covers are arranged around the gas analysis device, the tops of the collecting covers are communicated with the gas analysis device through gas conveying pipes, and the plurality of collecting covers are rigidly connected with the gas analysis device; when the gas monitoring equipment is used, the openings of the collecting covers extend into the water surface, and the plurality of collecting covers support the gas analysis device above the water surface. According to the gas monitoring equipment provided by the utility model, the overall stability of the gas monitoring equipment is ensured, and the wind wave resistance of the gas monitoring equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse gas monitoring, in particular to a gas monitoring device suitable for the water-air interface. Background Art

[0002] Greenhouse gas monitoring devices can be roughly divided into three categories according to different monitoring scenarios, namely air greenhouse gas monitoring devices, water-air interface greenhouse gas monitoring devices, and underwater greenhouse gas monitoring devices.

[0003] Specifically, the greenhouse gas monitoring device at the water-air interface is usually floating on the water surface. By collecting the gas escaping from the water body into the air and analyzing it, the greenhouse gas at the water-air interface can be monitored. For example, the patent document with the application number CN201020540093.4 discloses a floating box for measuring greenhouse gas emissions on the water surface, which includes a measuring box body. A floating device is arranged outside the measuring box body. A fixing rope is connected to the measuring box body. An air sample hole is arranged on the measuring box body. The outer surface of the measuring box body is covered with a tin foil reflective material layer. A measuring pipeline communicates with the measuring box body through the air sample hole. A three-way valve is arranged on the measuring pipeline. There are two air sample holes, and an instrument connected by a measuring pipeline is arranged between the two air sample holes. This utility model can effectively improve the measurement accuracy, operation convenience of greenhouse gas emission monitoring on the water surfaces of reservoirs, rivers, and lakes, and reduce the manufacturing cost of the corresponding measuring floating box. However, the measuring pipeline of this measuring floating box is arranged on the top of the floating box. The traditional monitoring method can only carry a gas analyzer by boat and connect it with the measuring pipeline to monitor relevant data, which makes the greenhouse gas monitoring activity time-consuming and laborious, and it is very difficult to achieve all-day real-time online monitoring. To solve this problem, some gas monitoring devices will set the gas analyzer on the shore and connect the measuring box body with the gas analyzer through a long pipeline, but this undoubtedly limits the monitoring range of the gas monitoring device. There are also some gas monitoring devices that directly set the gas analyzer on the top of the measuring box body so that it can be set in any area of the water body. However, this setting method will make the whole gas monitoring device top-heavy. Especially in open water bodies such as rivers, lakes, and seas, this unstable structure is very easy to capsize due to water surface disturbances such as wind and waves, resulting in damage to the gas monitoring device. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the above-mentioned disadvantages and deficiencies of the prior art, the utility model provides a gas monitoring device suitable for the water-air interface, which solves the technical problems of unreasonable and unstable setting of the gas analyzer in the existing gas monitoring device.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the main technical solutions adopted by the present utility model include:

[0008] An embodiment of the present utility model provides a gas monitoring device applicable to the water-gas interface, including a gas analysis device and a plurality of collection covers with open bottoms; the plurality of collection covers are arranged around the gas analysis device, the tops of the collection covers are connected to the gas analysis device through gas pipelines, and the plurality of collection covers are rigidly connected to the gas analysis device;

[0009] When the gas monitoring device is in use, the openings of the collection covers extend below the water surface, and the plurality of collection covers support the gas analysis device above the water surface.

[0010] Optionally, when the gas monitoring device is applied to the greenhouse gas monitoring of open water bodies, the number of the collection covers is greater than or equal to 3 and less than or equal to 6, and the plurality of collection covers are evenly distributed around the gas analysis device.

[0011] Optionally, a collection component is provided at the top of the collection cover, and the collection component includes an air pump, a temperature sensor, and a pressure sensor;

[0012] The input end of the air pump is arranged inside the collection cover, and the output end of the air pump is connected to the gas pipeline;

[0013] The probe of the temperature sensor is arranged inside the collection cover;

[0014] The probe of the pressure sensor is arranged inside the collection cover;

[0015] The air pump, the temperature sensor, and the pressure sensor are electrically connected to the gas analysis device.

[0016] Optionally, the bottom of the collection cover is a vertically arranged cylinder, and a floating member is arranged on the outer side of the cylinder so that the collection cover floats on the water surface.

[0017] Optionally, the cylinder is cylindrical, the floating member is annular and matches the diameter of the cylinder, and the floating member is clamped on the outer wall of the cylinder.

[0018] Optionally, a plurality of limiting grooves for clamping the floating member are arranged on the outer side wall of the cylinder in sequence from bottom to top, each limiting groove is annularly arranged along the circumference of the cylinder, and the cross section of the limiting groove is arc-shaped and matches the shape of the floating member.

[0019] Optionally, the collection cover is rigidly connected to the gas analysis device through a gas pipeline.

[0020] Optionally, a dryer is provided on the gas pipeline.

[0021] Optionally, the gas monitoring device further includes a solar panel and a storage battery. The solar panel is disposed on the side or top surface of the gas analysis device. The solar panel is electrically connected to the storage battery, and the storage battery is electrically connected to the gas analysis device.

[0022] Optionally, an anti-floating structure is provided on the bottom surface of the gas analysis device. The anti-floating structure includes a counterweight block, and the counterweight block is in the shape of a frustum of a cone. The top surface of the counterweight block is connected to the bottom surface of the gas analysis device through a vertical rod.

[0023] (III) Beneficial effects

[0024] The gas monitoring device provided by the present utility model includes a gas analysis device and a plurality of collection covers. The collection cover includes a collection cover with an open bottom. The collection cover is floatingly disposed on the water surface. The top of the collection cover is communicated with the gas analysis device through a gas transmission pipe, and a plurality of the collection covers are rigidly connected around the gas analysis device, so that the gas analysis device floats on the water surface through the collection covers.

[0025] Based on the above settings, the gas analysis device can float on the water surface under the buoyancy provided by a plurality of collection covers arranged around it, so that it can be set at any position in the water body according to requirements. Moreover, a plurality of collection covers rigidly connected around the gas analysis device provide support for the gas analysis device from multiple angles, ensuring the overall stability of the gas monitoring device and improving the anti-wave and anti-wind ability of the gas monitoring device. Description of the drawings

[0026] Figure 1 It is a schematic structural diagram of a gas monitoring device applicable to the water-gas interface provided in the embodiment;

[0027] Figure 2 It is for Figure 1 the top view;

[0028] Figure 3 It is for Figure 2 the sectional view taken along the line A-A in

[0029]

Description of the reference numerals

[0030] 1. Gas analysis device; 2. Collection cover; 3. Gas transmission pipe; 301. First section; 302. Second section; 4. Air pump; 5. Temperature sensor; 6. Pressure sensor; 7. Housing; 8. Solar panel; 9. Counterweight block; 10. Vertical rod; 11. Floating member; 12. Limiting groove; 13. Dryer. Detailed implementation manners

[0031] To better explain the present utility model for easier understanding, the present utility model will be described in detail below in conjunction with the accompanying drawings through specific embodiments. Among them,

[0032] As Figure 1 shown, an embodiment of the present utility model provides a gas monitoring device applicable to the water-gas interface, including a gas analysis device 1 and a plurality of collection hoods 2 with open bottoms; the plurality of collection hoods 2 are arranged around the gas analysis device 2, the top of the collection hood 2 is connected to the gas analysis device 1 through a gas pipeline 3, and the plurality of collection hoods 2 are rigidly connected to the gas analysis device 1; when the gas monitoring device is in use, the opening of the collection hood 1 extends below the water surface, and the plurality of collection hoods 2 support the gas analysis device 1 above the water surface.

[0033] Specifically, the distance between each of the collection hoods 2 and the gas analysis device 1 can be the same or different, and the included angle between the connecting lines of two adjacent collection hoods 2 and the gas analysis device 1 can be the same or different. The gas monitoring device provided by the present utility model can be applied to the monitoring of various gases in different water bodies according to requirements. Preferably, when it is applied to the monitoring of greenhouse gases in open water bodies, the number of the collection hoods 2 is greater than or equal to 3 and less than or equal to 6, and the plurality of collection hoods 2 are evenly distributed around the gas analysis device 1. More preferably, as Figure 2 shown, the number of the collection hoods 2 is 3. The 3 collection hoods 2 are rotationally symmetrically distributed around the gas analysis device 1 with the gas analysis device 1 as the center, ensuring the overall stability of the gas monitoring device on the water surface.

[0034] Based on the above settings, the gas analysis device 1 provided by the present utility model can float on the water surface under the buoyancy provided by the plurality of collection hoods 2 arranged around it, so that it can be set at any position in the water body according to requirements. Moreover, the plurality of collection hoods 2 rigidly connected around the gas analysis device 1 provide support for the gas analysis device 1 from multiple angles respectively, ensuring the overall stability of the gas monitoring device and improving the anti-wave and anti-wind ability of the gas monitoring device. In addition, the integrated setting method of the above collection hood 2 and the gas analysis device 1 also ensures that the gas monitoring device can be separated from human interference and perform real-time online monitoring of greenhouse gases at the water-gas interface, improving the convenience of greenhouse gas monitoring work. And the redundant collection hoods 2 can also ensure that in a harsh working environment, as long as a group of collection hoods 2 and the corresponding collection components work properly, the gas monitoring device can operate normally, reducing the maintenance frequency of the device.

[0035] In a specific embodiment of the present utility model, as Figure 3 shown, a collection component is provided at the top of the collection hood 2, and the collection component includes an air pump 4, a temperature sensor 5, and a pressure sensor 6.

[0036] The input end of the air pump 4 is arranged inside the collection hood 2, and the output end of the air pump 4 is communicated with the air delivery pipe 3; the probe of the temperature sensor 5 is arranged inside the collection hood 2; the probe of the pressure sensor 6 is arranged inside the collection hood 2; the air pump 4, the temperature sensor 5 and the pressure sensor 6 are electrically connected to the gas analysis device 1. The gas analysis device 1 is realized by using an existing device, which obtains a gas sample inside the collection hood 2 through the air pump 4 for analysis, and obtains the temperature and pressure data inside the collection hood 2 based on the temperature sensor 5 and the pressure sensor 6, providing a structural basis for realizing real-time on-line monitoring of the gas concentration and flow rate. The air pump 4, the temperature sensor 5, the pressure sensor 6 and the gas analysis device 1 in the present utility model are all physical structural components. This embodiment does not involve the improvement and use of computer programs, and only provides the connection relationship between the air pump 4, the temperature sensor 5, the pressure sensor 6 and the gas analysis device 1.

[0037] The collection assembly may further include a housing 7, and the housing 7 covers the air pump 4, the temperature sensor 5 and the pressure sensor 6 therein to achieve the purpose of waterproofing and anti-aging.

[0038] Preferably, the gas monitoring device further includes a solar panel 8 and a storage battery. The solar panel 8 is arranged on the side or top surface of the gas analysis device 1. As Figure 1 shown, when the solar panel 8 is arranged on the side of the gas analysis device 1, the solar panel 8 can be located between two adjacent air delivery pipes 3. The solar panel 8 is electrically connected to the storage battery, the storage battery is electrically connected to the gas analysis device 1, and the storage battery can be integrated inside the gas analysis device. The storage battery stores the electric energy generated by the solar panel 8 for the use of the gas analysis device 1 to improve the self-sustainability and applicability of the gas monitoring device and reduce the frequency of manual maintenance.

[0039] In addition, an anti-floating structure is further provided on the bottom surface of the gas analysis device 1. The anti-floating structure includes a counterweight 9, and the counterweight 9 is in a frustum shape. The top surface of the counterweight 9 is connected to the bottom surface of the gas analysis device 1 through a vertical rod 10. The anti-floating structure can further improve the stability of the overall gas monitoring device against water surface disturbances such as wind and waves. In addition, the gas monitoring device provided by the present utility model can also be anchored in a fixed water area through an anchoring device to realize continuous monitoring of the fixed water area.

[0040] In another specific implementation scheme of this embodiment, the bottom of the collection hood 2 is a vertically arranged cylinder, and a floating member 11 is arranged on the outer side of the cylinder to enable the collection hood 2 to float on the water surface.

[0041] Specifically, the cylinder is cylindrical, the floating member 11 is annular and matches the diameter of the cylinder, and a plurality of limiting grooves 12 for clamping the floating member 11 are arranged on the outer side wall of the cylinder in sequence from bottom to top. Each limiting groove 12 is annularly arranged along the circumferential direction of the cylinder, and the cross section of the limiting groove 12 is arc-shaped and matches the shape of the floating member 11. When the floating member 11 is clamped in different limiting grooves 12, the distance between the top of the collection cover 2 and the water surface can be adjusted.

[0042] Among them, the floating member 11 can specifically be a low-density object such as an airbag, sponge with a waterproof layer on the outside, or a hollow plastic shell, etc., so as to provide sufficient buoyancy for the gas monitoring device. In addition, the floating member 11 can also have certain elasticity or deformation ability to facilitate changing the specific height at which the floating member 11 is clamped on the cylinder.

[0043] In addition, the collection cover 2 can be rigidly connected to the gas analysis device 1 through an additional connecting rod (not shown in the figure), or can be directly rigidly connected to the gas analysis device 1 through the gas transmission pipe 3. A dryer 13 is provided on the gas transmission pipe 3, and the dryer 13 is used to dry the gas flowing through the gas transmission pipe 3 to prevent the gas entering the gas analysis device 1 from containing too much moisture, which may affect the service life of the gas analysis device 1 and the detection accuracy of the gas sample.

[0044] More specifically, the dryer 13 can be threadedly connected to the gas transmission pipe 3. As Figure 2 shown, the gas transmission pipe 3 includes a first section 301 connected to the collection cover 2 and a second section 302 connected to the gas analysis device. The dryer 13 is communicated between the first section 301 and the second section 302. The dryer 13 is a cylindrical pipe body with through holes at both ends. A desiccant is provided inside the cylindrical pipe body. The first end of the dryer 13 is threadedly connected to one end of the first section 301 of the gas transmission pipe, and the second end of the dryer 13 is threadedly connected to one end of the second section 302 of the gas transmission pipe. Threaded connection can facilitate the replacement of the dryer 13 or the desiccant therein.

[0045] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0046] In the present utility model, unless otherwise clearly defined and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0047] In the description of this specification, the description of terms such as "an embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0048] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A gas monitoring device suitable for water-gas interface, characterized in that: It comprises a gas analysis device (1) and a plurality of collecting hoods (2) with bottom openings; the plurality of collecting hoods (2) are arranged around the gas analysis device (1), the top of the collecting hood (2) is connected to the gas analysis device (1) via a gas transmission pipe (3), and the plurality of collecting hoods (2) are rigidly connected to the gas analysis device (1); When the gas monitoring device is in use, the opening of the collection cover (2) extends below the water surface, and a plurality of collection covers (2) support the gas analysis device (1) above the water surface.

2. The gas monitoring device according to claim 1, characterized in that: When the gas monitoring device is applied to greenhouse gas monitoring in an open water body, the number of the collecting hoods (2) is greater than or equal to 3 and less than or equal to 6, and the plurality of collecting hoods (2) are evenly distributed around the gas analysis device (1).

3. The gas monitoring device according to claim 1, characterized in that: A collection assembly is provided on the top of the collection cover (2), and the collection assembly comprises an air pump (4), a temperature sensor (5) and a pressure sensor (6); The input end of the air pump (4) is arranged inside the collecting cover (2), and the output end of the air pump (4) is connected to the air delivery pipe (3); The probe of the temperature sensor (5) is arranged inside the collecting cover (2); The probe of the pressure sensor (6) is arranged inside the collecting cover (2); The air pump (4), the temperature sensor (5) and the pressure sensor (6) are electrically connected to the gas analysis device (1).

4. According to the gas monitoring equipment according to claim 1, the bottom of the collection cover (2) is a vertically arranged cylinder, and a floating member (11) is arranged on the outside of the cylinder to make the collection cover (2) float on the water surface.

5. The gas monitoring device according to claim 4, characterized in that: The cylinder is cylindrical, the floating member (11) is annular and matches the diameter of the cylinder, and the floating member (11) is clamped on the outer wall of the cylinder.

6. The gas monitoring device according to claim 5, characterized in that: The outer wall of the cylinder is provided with a plurality of limiting grooves (12) arranged in sequence from bottom to top for clamping the floating member, each limiting groove (12) is arranged in an annular shape along the circumference of the cylinder, and the cross section of the limiting groove (12) is an arc shape matching the shape of the floating member (11).

7. The gas monitoring device according to claim 1, characterized in that: The collecting hood (2) is rigidly connected to the gas analysis device (1) via a gas delivery pipe (3).

8. The gas monitoring device according to claim 1, characterized in that: A dryer (13) is provided on the gas delivery pipe (3).

9. The gas monitoring device according to claim 1, characterized in that: The gas monitoring device further comprises a solar panel (8) and a storage battery, wherein the solar panel (8) is arranged on the side or top surface of the gas analysis device (1), the solar panel (8) is electrically connected to the storage battery, and the storage battery is electrically connected to the gas analysis device (1).

10. The gas monitoring device according to claim 1, characterized in that: The bottom surface of the gas analysis device (1) is provided with an anti-floating structure, the anti-floating structure comprising a counterweight block (9), and the counterweight block (9) is in the shape of a frustum, and the top surface of the counterweight block (9) is connected to the bottom surface of the gas analysis device (1) via a vertical rod (10).

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