Device for collecting greenhouse gas on ice surface in winter

Abstract

The utility model provides a winter ice surface greenhouse gas collecting device which comprises a collecting box body, an ice surface attaching opening is formed in the bottom of the collecting box body, a gas collecting opening capable of being opened and closed is formed in the collecting box body, a file surface is arranged on the lower side face of the ice surface attaching opening, and the file surface is used for rubbing with the ice surface to form an ice groove in the ice surface. The bottom of the collection box main body can be arranged in the ice groove, the winter ice surface greenhouse gas collection device further comprises a water container, purified water fully contacted with air is stored in the water container, the water container is used for pouring the purified water into the annular ice groove, and a gap between the bottom of the collection box main body and the ice surface is sealed through the purified water. The purified water and the annular ice groove are matched to form a sealing layer, the gap between the bottom of the collecting box body and the ice surface is blocked, the sealing performance of the collecting box body is guaranteed, and the authenticity of gas information is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gas collection and detection, and concretely relates to a winter ice surface greenhouse gas collection device. BACKGROUND

[0002] Water body is an important source or sink of greenhouse gases, and is crucial for climate regulation. Generally, there is strong gas exchange at the water vapor interface. Collecting and measuring greenhouse gases at the water vapor interface is of great significance for studying material and energy circulation, ecosystem function and climate change.

[0003] At present, the collection of greenhouse gases at the water vapor interface has a floating box method and a headspace method. The floating box method is a commonly used method for measuring gas emission flux, and is mainly used for measuring the flux of greenhouse gases such as CO2, CH4 and N2O emitted by inland water bodies such as rivers, lakes and reservoirs into the atmosphere. The basic principle of the floating box method is to use a floating static box to cover the water surface, and to isolate the gas exchange between the inside and outside of the box. By extracting gas samples and detecting their content, the gas exchange flux can be calculated according to the time change. The headspace method is also a commonly used method for measuring gas emission flux, and its basic principle is to place the sample to be measured in a sealed container, and to volatilize the volatile components in the sample to the top space of the container by vigorous shaking, and then to analyze the gas in the top space by gas chromatography. Studies have shown that there is obvious gas exchange between water body and atmosphere in winter. Because there is an ice cover on the water body in the north in winter, the floating box cannot be used on the ice surface, and the headspace method cannot accurately reflect the greenhouse gas exchange between the atmosphere and the water body in the presence of the ice cover. The ice cover period of the water body in the north lasts for 3-6 months, or even longer, so it is particularly important to accurately and conveniently collect greenhouse gases during the ice cover period.

[0004] In addition, when collecting greenhouse gases on the ice surface in winter, the following problems are also faced: 1. The ice surface is not completely flat, and when the collection box is closed on the ice surface, the bottom is easy to have a gap that is not easy to detect, which leads to insufficient sealing of the collection box, and finally the concentration of greenhouse gases obtained is inaccurate, 2. The wind is strong in winter, and the ice surface is slippery, so the collection box placed on the ice surface is easy to be blown over or slide along the ice surface, which leads to failure of greenhouse gas collection. Utility model content

[0005] The utility model discloses a winter ice surface greenhouse gas collection device based on the technical problems mentioned in the background art.

[0006] The utility model adopts the following technical scheme:

[0007] The winter ice surface greenhouse gas collection device comprises a collection box main body, the bottom of the collection box main body is provided with an ice surface fitting opening, the collection box main body is provided with an openable gas collection opening, the lower side of the ice surface fitting opening is provided with a surface, the surface is used for friction with the ice surface to form an ice groove on the ice surface, the bottom of the collection box main body can be placed in the ice groove, and the winter ice surface greenhouse gas collection device further comprises a water container, the water container stores pure water which is fully contacted with air, and the water container is used for pouring the pure water into the annular ice groove to close the gap between the bottom of the collection box main body and the ice surface.

[0008] In order to optimize the technical scheme, the further measures are taken as follows:

[0009] The collection box main body is a cylindrical box body, the lower end of the collection box main body is open to form the ice surface fitting opening, and correspondingly, the surface is an annular surface, and the ice groove rubbed by the surface on the ice surface is an annular groove.

[0010] The lower end of the side surface of the collection box main body is formed with a bulging bottom ring, the thickness of the bulging bottom ring is greater than the thickness of the side surface of the collection box main body, and the thickness of the bulging bottom ring gradually increases from top to bottom, and the surface is arranged on the lower surface of the bulging bottom ring.

[0011] The collection box main body is internally provided with a battery and a fan, the battery is connected with the fan and supplies power to the fan, and the fan can blow air into the inner cavity of the collection box main body.

[0012] The heating resistor is arranged in the bulging bottom ring, the heating resistor is connected with the battery, and the battery can supply power to the heating resistor.

[0013] The control panel is fixedly arranged on the outer surface of the collection box main body, the fan switch is connected to the connecting circuit of the battery and the fan, the heating switch is connected to the connecting circuit of the battery and the heating resistor, and the control panel controls the on-off of the connecting circuit of the battery and the fan and the connecting circuit of the battery and the heating resistor.

[0014] The charging port is fixedly arranged on the outer surface of the collection box main body, the charging port is connected with the battery, and the external power supply can charge the battery through the charging port.

[0015] The power supply power display is arranged on the control panel, the power supply power display is connected with the battery, and the power supply power display can display the power of the battery.

[0016] The number of the gas collection openings is at least one, a plurality of elastic diaphragms are fixedly arranged in the gas collection opening, the elastic diaphragms close the gas collection opening in a mutual abutting and fitting mode, the collection end of the gas collector can break the abutting and fitting position between the elastic diaphragms to enter the inner side of the gas collection opening.

[0017] The collection box main body is a metal box body, the top of the inner side of the collection box main body is provided with a mounting box, and the battery is fixedly arranged in the mounting box.

[0018] Compared with the prior art, the greenhouse gas collecting device has the following beneficial effects:

[0019] The utility model provides a greenhouse gas collecting device can use on ice surface, this device sets up the surface of ice on the bottom, can draw out the ice groove on the ice surface, then through the water container pours into the ice groove with the pure water that air contacts fully, and then through the pure water seals the gap between the bottom of collecting box main part and ice surface, adopts the pure water that air contacts fully can prevent the water that pours absorbs the carbon dioxide that ice surface emits, guarantees the gas that greenhouse gas collecting device gathers can truly reaction ice surface and atmospheric gas exchange situation, simultaneously, pure water forms a sealed layer, blocks up the gap between collecting box main part bottom and ice surface, has guaranteed the sealing property of collecting box main part, improved the authenticity of gas information.

[0020] The pure water will gradually freeze at zero below, freeze the bottom of collecting box main part, and then improve the connection stability of collecting box main part and ice surface, can effectively resist the strong wind, prevent collecting box from being blown and sliding along the ice surface.

[0021] The utility model forms the bulging bottom ring in collecting box main part bottom, and the bulging bottom ring is frozen in the ice after the pure water freezes, and the bulging part of bulging bottom ring can significantly improve the connection strength of collecting box main part and ice surface, so that the collecting box main part can resist the strong wind.

[0022] The utility model sets up heating resistance in the bulging bottom ring, when gas information collection is completed, the collecting box main part is taken away, and the ice is melted through heating resistance, so that the collecting box main part is taken away from the ice layer, and heating resistance can conveniently take away the collecting box main part for the user.

[0023] The fan is arranged in the collecting box main part, and the air in the collecting box main part can be effectively mixed after the fan is started, so that the air composition in the collecting box main part is uniform. ACCOMPANYING DRAWINGS

[0024] Figure 1 It is the external structure diagram of the utility model Figure 1 ;

[0025] Figure 2 It is the external structure diagram of the utility model Figure 2 ;

[0026] Figure 3 It is the plan view of Figure 2 ;

[0027] Figure 4 It is the A-A section view of Figure 3 ;

[0028] Figure 5 It isFigure 4 B part structure enlarged view of

[0029] Figure 6 The schematic diagram of the surface of the protruding bottom ring lower surface;

[0030] Figures 7-11 The process diagram of the collection box body installation on the ice surface in the order of operation;

[0031] The figure marks are: collection box body 1, gas inlet 2, surface 3, ice tank 4, water container 5, ice surface fitting port 6, protruding bottom ring 7, battery 8, fan 9, heating resistance 10, fan switch 11, heating switch 12, charging port 13, power supply power display 14, elastic diaphragm 15. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is described and explained below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application. Based on the examples provided in the present application, all other examples obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0033] Obviously, the drawings in the following description are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar scenarios without creative labor on the basis of these drawings. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacture or production changes based on the technical content disclosed in the present application are only routine technical means and should not be understood as insufficient disclosure of the present application.

[0034] In the present application, "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0035] Unless otherwise defined, technical terms and scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terms "a", "an", "one", "this", and similar referents in the context of describing the application are to be construed to be inclusive, not exclusive. For example, the use of the term "comprises" or "comprising" or "includes" or "including" or "has" or "having" or "contains" or "containing" or "consists" or "consisting" or "consists of" or "consisting of" to describe certain steps or units (units) of a process, method, system, product or apparatus does not limit the process, method, system, product or apparatus to the listed steps or units, but rather can include additional steps or units not listed, or can include steps or units inherent to the process, method, system, product or apparatus. The terms "connected", "connected", "coupled" and similar terms in the present application are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The term "multiple" refers to two or more. The term "and / or" describes the relationship between the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects. The terms "first", "second", "third" and the like in the present application are only to distinguish similar objects, and do not represent a specific order for the objects.

[0036] As Figures 1-11 The main structure of the winter ice surface greenhouse gas collection device of the utility model includes a collection box main body 1, a surface 3, a water container 5, an expanded bottom ring 7, a battery 8, a fan 9 and a heating resistance 10 and the like structure:

[0037] The collection box main body 1 is a cylindrical collection box, the diameter is 70 cm, the height is 80 cm, the thickness is preferably 1-2 mm, and the seamless welding is adopted. Two gas collection ports 2 are formed in the upper part of the collection box main body 1, four elastic diaphragms 15 are fixedly installed in the gas collection port 2, the elastic diaphragm 15 is fan-shaped, the arc-shaped edge of the elastic diaphragm 15 is fixedly connected with the side wall of the gas collection port 2, the straight edge of the elastic diaphragm 15 extends to the center of the gas collection port 2, the straight edges of the four elastic diaphragms 15 are combined together and abut to close the gas collection port 2, and the bottom of the collection box main body 1 is completely open to form an ice surface abutting port 6, which is used to cover the ice surface.

[0038] An expanded bottom ring 7 is arranged at the bottom of the collection box main body 1 along the ice surface abutting port 6, the expanded bottom ring 7 is internally provided with a heating resistance 10, the thickness of the expanded bottom ring 7 gradually increases from top to bottom, and the minimum thickness of the expanded bottom ring 7, that is, the top of the expanded bottom ring 7, is the same as the thickness of the side wall of the collection box main body 1.

[0039] The battery 8 and the fan 9 are fixed at the top of the inner cavity of the collecting box body 1, the battery 8 is enclosed in a mounting box, the battery 8 is connected with the fan 9 through a wire, and the control switches of the fan 9 and the heating resistor 10 are arranged at the top of the outer side of the collecting box body 1. The charging port 13 and the power display 14 of the battery 8 are also arranged at the top of the outer side of the collecting box body 1.

[0040] In addition, the utility model still has a water container 5 for containing the pure water which has been fully contacted with air.

[0041] The equipment of the utility model is used as follows:

[0042] As shown in Figure 7 , the collecting box body 1 is placed on the ice surface, the ice surface 3 is contacted with the ice surface, then the collecting box body 1 is rotated, the ice surface 3 is rotated to form a ring-shaped ice groove 4 on the ice surface, the width of the ice groove 4 is 2-3cm, the depth of the ice groove 4 is 4-6cm, and the state is as shown in Figure 8 . Then the collecting box body 1 is taken up, the pure water which has been fully contacted with air is poured into the ice groove 4 by the water container 5, as shown in Figures 9-10 . Before the pure water is frozen, the lower end of the rotating collecting box body 1 is placed into the ice groove 4, as shown in Figure 11 . At this time, the installation of the rotating collecting box body 1 is completed. The pure water plays a sealing role and prevents the sealed water body from absorbing or releasing greenhouse gases. The syringe is inserted into the gas inlet 2 to collect the gas in the collecting box body 1, and a certain pressure of air is injected (or sucked out) by the syringe before sampling to test the air tightness of the system. After the air tightness meets the requirements, sampling is carried out, otherwise the operation should be re-operated. Before collecting the gas, the fan 9 can be started to mix the gas in the collecting box body 1 uniformly.

[0043] After collecting the gas, the pure water may have been frozen, if the ice is frozen, the heating resistor 10 is started to melt the ice, then the collecting box body 1 is lifted, and the collecting process is completed.

[0044] The above is only the preferred embodiment of the utility model, the protection scope of the utility model is not limited to the above-mentioned embodiment, and any technical scheme belonging to the idea of the utility model belongs to the protection scope of the utility model. It should be pointed out that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims

1. A greenhouse gas collection device for winter ice surface, comprising a collection box body (1), wherein the bottom of the collection box body (1) is provided with an ice surface contact port (6), and the collection box body (1) is provided with an openable and closable gas collection port (2), characterized in that: The lower side of the ice surface fitting mouth (6) is provided with a skid surface (3), the skid surface (3) is used for rubbing with the ice surface, an ice groove (4) is formed on the ice surface, the bottom of the collection box body (1) can be placed in the ice groove (4), and the winter ice surface greenhouse gas collection device further comprises a water container (5), the water container (5) stores pure water which is fully contacted with air, and the water container (5) is used for pouring the pure water into the annular ice groove (4) to close the gap between the bottom of the collection box body (1) and the ice surface.

2. The winter ice surface greenhouse gas collection apparatus of claim 1, wherein: The collection box body (1) is a cylindrical box body, the lower end of the collection box body (1) is open to form an ice surface fitting mouth (6), and correspondingly, the skid surface (3) is an annular surface, and the ice groove (4) rubbed by the skid surface (3) on the ice surface is an annular groove.

3. The winter ice surface greenhouse gas collection apparatus of claim 2, wherein: The lower end of the side surface of the collection box body (1) is formed with a bulging bottom ring (7), the thickness of the bulging bottom ring (7) is greater than the thickness of the side surface of the collection box body (1), and the thickness of the bulging bottom ring (7) gradually increases from top to bottom, and the skid surface (3) is arranged on the lower surface of the bulging bottom ring (7).

4. The winter ice surface greenhouse gas collection apparatus of claim 3, wherein: The collection box body (1) is internally provided with a battery (8) and a fan (9), the battery (8) is connected with the fan (9) and supplies power for the fan (9), and the fan (9) can blow air into the inner cavity of the collection box body (1).

5. The winter ice surface greenhouse gas collection apparatus of claim 4, wherein: The bulging bottom ring (7) is provided with a heating resistor (10), the heating resistor (10) is connected with the battery (8), and the battery (8) can supply power for the heating resistor (10).

6. The winter ice surface greenhouse gas collection apparatus of claim 5, wherein: A control panel is fixedly installed on the outer surface of the collection box body (1), the control panel is provided with a fan switch (11) and a heating switch (12), the fan switch (11) is connected on the connecting circuit of the battery (8) and the fan (9), controls the on-off of the connecting circuit of the battery (8) and the fan (9), and the heating switch (12) is connected on the connecting circuit of the battery (8) and the heating resistor (10), and controls the on-off of the connecting circuit of the battery (8) and the heating resistor (10).

7. The winter ice surface greenhouse gas collection apparatus of claim 6, wherein: A charging port (13) is fixed on the outer surface of the collection box body (1), the charging port (13) is connected with the battery (8), and an external power supply can charge the battery (8) through the charging port (13).

8. The winter ice surface greenhouse gas collection apparatus of claim 7, wherein: A power supply power display (14) is arranged on the control panel, the power supply power display (14) is connected with the battery (8) and can display the power of the battery (8).

9. The winter ice surface greenhouse gas collection apparatus of claim 8, wherein: The number of the gas collection ports (2) is at least one, a plurality of elastic diaphragms (15) are fixedly installed in the gas collection ports (2), the elastic diaphragms (15) close the gas collection ports (2) in a mutual abutting and fitting mode, the collection end of the gas collector can break the abutting and fitting position between the elastic diaphragms (15) and enter the inner side of the gas collection port (2).

10. The winter ice surface greenhouse gas collection apparatus of claim 6, wherein: The collection box body (1) is a metal box body, a mounting box is arranged on the top of the inner side of the collection box body (1), and the battery (8) is fixedly installed in the mounting box.

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