CN113640069A - Water area section greenhouse gas collection system - Google Patents
Water area section greenhouse gas collection system Download PDFInfo
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- CN113640069A CN113640069A CN202111064682.9A CN202111064682A CN113640069A CN 113640069 A CN113640069 A CN 113640069A CN 202111064682 A CN202111064682 A CN 202111064682A CN 113640069 A CN113640069 A CN 113640069A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
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Abstract
The invention discloses a water area section greenhouse gas collecting device, which comprises: a main pole capable of being inserted into the water and partially exposed out of the water; one end of the retraction jack is connected with the main rod, and the other end of the retraction jack is fixed at the bank; the gas collector floats on the water surface to collect gas, is connected with the retraction jack and can move between a water area and the shore under the drive of the retraction jack. The basic principle is that a main rod is arranged in a water area, a retraction mechanism is arranged between the main rod and a shore, an operator can move a gas collector to the water area or recover the gas collector to the shore through the retraction mechanism on the shore, and greenhouse gas released by the water body is collected through the gas collector. The method has the advantages that the method can be operated on the shore of the water area, and can collect the gas sample on the sample belt on the cross section of the water area and improve the accuracy of gas sample collection.
Description
Technical Field
The invention relates to the technical field of ecological environment, in particular to a water area section greenhouse gas collecting device.
Background
As an important component of the global ecosystem, the terrestrial aquatic ecosystem plays an important role in the geochemical cycle of carbon and nitrogen biology, and the research on the flux of greenhouse gases at the water-gas interface is a hot spot of the research on ecology and environmental science for a long time. Estimated annual CO in waters including lakes, reservoirs, ponds, rivers and the like2And CH4The discharge amount reaches 2.1Pg C and 0.65Pg C (CO) respectively2equiv.) is an important source of greenhouse gases in the atmosphere. Recently, more and more researches show that the differences of water flow rate, temperature, water oxidation-reduction conditions and nutrient level caused by the underwater micro-terrain shapes of river sections, ponds and lakes have important influence on greenhouse gas emission, but are limited by water access conditions, and related research reports are few, so that the lack of the data in the aspect is likely to bring much uncertainty to the prediction of future global climate change and the establishment of greenhouse gas emission lists. The existing collection work of most river sections and lake sample zones depends on a boat to a great extent, a suspension box is arranged after the boat is driven to a specific water area to collect gas, the sampling efficiency is low, the interference of the boat is large, the sample collection time is not uniform, the boat is not suitable for long-term fixed-point monitoring, and the precision of the sample is influenced; secondly, although the sampling method for erecting the trestle is favorable for fixed-point observation, the construction cost is high, the method is not suitable for being erected on multiple sections of rivers and lakes, and the change of the water level also brings great difficulty to the trestle sampling (the danger of sampling is increased when the water level is excessively higher or lower than the bridge floor). Therefore, a greenhouse gas collecting device which is simple to operate, cheap and effective in water area section is urgently needed.
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art.
Disclosure of Invention
In view of this, an embodiment of the present invention provides a device for collecting greenhouse gases on a water area section, which is used to solve the problems of the prior art, such as high cost, large interference, complex operation, low collection precision, and difficulty in forming an effective sample band for long-term monitoring.
The technical scheme for solving the technical problems is as follows:
a water area section greenhouse gas collection device for collecting greenhouse gases released by a water area, comprising:
a main pole capable of being inserted into the water and partially exposed out of the water;
one end of the retraction mechanism is connected with the main rod, and the other end of the retraction mechanism is fixed on the bank;
the gas collector floats on the water surface to collect gas, is connected with the retraction jack and can move between a water area and a shore under the drive of the retraction jack.
As a preferable technical solution of the embodiment of the present invention, the mobile terminal further includes an auxiliary rod connected to the main rod and capable of moving along the main rod, and one end of the retraction/release mechanism is connected to the main rod through the auxiliary rod.
As a preferable technical solution of the embodiment of the present invention, the retraction mechanism includes a first pulley fixed to the auxiliary rod, a second pulley arranged on the shore, and a rope sleeved between the first pulley and the second pulley, and the gas collector is fixed to the rope.
As a preferred technical solution of the embodiment of the present invention, the gas collector includes a tank body capable of floating on the water surface, and only the bottom of the tank body is opened for collecting the gas released from the water area into the tank body.
As a preferable technical solution of the embodiment of the present invention, the gas collector further includes a gas extractor, and the gas extractor includes an injector communicated with the tank body.
As a preferable technical scheme of the embodiment of the invention, the edge of the bottom of the box body extends outwards to form a flange part, and the flange part is made of light materials with density lower than that of water.
As a preferred technical solution of the embodiment of the present invention, the gas collector is connected to the rope through a buckle 6, the buckle 6 includes a buckle body and a screw, the buckle body is provided with a groove, the rope is arranged in the groove, and the screw penetrates through the groove and fastens the rope.
As a preferred technical solution of the embodiment of the present invention, the main rod is provided with a sliding groove, the auxiliary rod is connected to the main rod through the sliding groove and can slide in the sliding groove, and the main rod is provided with a scale.
As a preferable technical solution of the embodiment of the present invention, the gas extractor further includes a three-way valve disposed on the box body and communicated with the box body, and the injector is communicated with the box body through the three-way valve.
As a preferable technical solution of the embodiment of the present invention, the retraction mechanism includes a first sprocket fixed to the auxiliary rod, a second sprocket arranged on the shore, and a chain engaged with the first sprocket and the second sprocket, and the gas collector is fixed to the chain.
The embodiment of the invention has the beneficial effects that:
1. the method can be operated on the bank side of the water area, and a gas sample on a water area section sample belt is collected;
2. wave interference caused by ship movement can be avoided, and the accuracy of gas sample collection is improved;
3. the height from the water level can be adjusted according to the water level (flood season/drought season), so that the method can well adapt to local hydrological conditions and meet the requirement of long-term section monitoring;
4. the device can rotate 360 degrees in a water area, and is suitable for the micro-terrain sampling requirement of a pond water area;
5. the device has simple structure and low manufacturing cost, can be arranged on a plurality of sections of a water area, is convenient for unifying sampling time, and meets the sampling requirement of high spatial resolution.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an overall structure of a greenhouse gas collecting device for a section of a water area according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a gas collector provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the buckle 6 according to the embodiment of the present invention.
In the figure:
1. a main rod;
2. an auxiliary rod;
3. a first pulley;
4. a second pulley;
5. a rope;
6. buckling; 601. a screw; 602. a buckle body;
7. a gas collector; 701. an injector; 702. a box body; 703. a flange portion; 704. and a three-way valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, a greenhouse gas collecting device for a water area section according to an embodiment of the present invention includes: a main pole 1 which can be inserted into the water and partially exposed out of the water; one end of the retraction jack is connected with the main rod 1, and the other end of the retraction jack is fixed at the bank; the gas collector 7 floats on the water surface to collect gas, is connected with the retraction mechanism and can move between a water area and the shore under the drive of the retraction mechanism. The gas collector 7 can be arranged in a plurality of ways according to actual needs, the basic principle is that the main rod 1 is arranged in the water area at first, then the retraction mechanism is arranged between the main rod 1 and the shore, an operator can move the gas collector 7 into the water area or retract the gas collector to the shore through the retraction mechanism on the shore, and greenhouse gas released by the water body is collected through the gas collector 7.
In this embodiment, the main rod 1 and the retracting mechanism are connected in a manner that a sub-rod 2 is disposed on the main rod 1, the sub-rod 2 can move along the main rod 1, and one end of the retracting mechanism is connected to the main rod 1 through the sub-rod 2. As shown in fig. 1, generally, the main pole 1 is inserted into the bottom of the water body perpendicular to the water surface, and the auxiliary pole 2 is horizontally arranged on the main pole 1, so that the pulling force of the retraction mechanism can be better counteracted. And the easier setting mode is that the auxiliary rod 2 adopts the sliding mode to move on the main rod 1, specifically can be that the main rod 1 is provided with a chute, the auxiliary rod 2 passes through the chute with the main rod 1 is connected and can slide in the chute, the chute therein can be a dovetail groove, or the end of the auxiliary rod 2 is provided with a chute, the auxiliary rod 2 is clamped and arranged on the main rod 1 to slide, as mentioned above, the setting modes of the main rod 1 and the auxiliary rod 2 are more changeable and can be flexibly selected, and the specific setting mode can be considered to belong to the conventional technical means, and is not limited specifically here. In addition, in order to facilitate observation after the water surface goes up and down, a scale with scales is arranged on the main rod 1.
In the embodiment of the invention, the retraction mechanism is provided with a first pulley 3 fixed on the auxiliary rod 2, a second pulley 4 arranged on the shore, and a rope 5 sleeved between the first pulley 3 and the second pulley 4, and the gas collector 7 is fixed on the rope 5. Conventionally, as shown in fig. 1, a first pulley 3 is vertically fixed on a secondary rod 2, so that ropes 5 sleeved on the first pulley 3 and a second pulley 4 are in the form of one rope in an up-down mode, a gas collector 7 is fixed on the lower rope 5, and the gas collector 7 is retracted by rotating the second pulley 4 to rotate the ropes 5. Of course, the first pulley 3 and the second pulley 4 may be horizontally disposed, as long as the rope 5 is prevented from falling off during use, and the basic principle is the same as the vertical arrangement mode. In particular, the first pulley 3 and the second pulley 4 are preferably sized to have a diameter of 8cm and a thickness of 2 cm.
As shown in fig. 2, in the embodiment of the present invention, the gas collector 7 includes a tank 702 capable of floating on the water surface, and the tank 702 is only opened at the bottom for collecting the gas released from the water area into the tank 702. The gas collector 7 is substantially in the form of a bowl inverted on the water surface, and the box 702 is made of a lightweight material such as PVC and is sized to have a top diameter of 30cm and a bottom opening diameter of 50cm and a height of 25 cm.
Further, in order to increase the buoyancy and stability of the gas collector 7, the bottom edge of the case 702 is extended outward to form a flange portion 703, and the outer diameter of the flange portion 703 may be set to 60cm, which is made of a lightweight material having a density lower than that of water, so that it is possible to prevent the gas collector 7 from being turned over to cause the internal gas to overflow when it is moved.
In the embodiment of the present invention, the gas collector 7 further comprises a gas extractor for extracting the gas collected in the box 702, and specifically, the gas extractor comprises an injector 701 communicated with the box 702, and the injector 701 is a so-called injector of a medical apparatus in a broad sense, and in practical use, a disposable injector with a capacity of 60ml is used, so that the replacement is convenient and the cost is low.
Further, the gas extractor further includes a three-way valve 704 disposed on the box 702 and communicating with the box 702, and the injector 701 communicates with the box 702 through the three-way valve 704. The main function of the three-way valve 704 is to facilitate the evacuation directly through the three-way valve 704 when the injector 701 is not used for evacuation, e.g. by using a hose to directly draw gas into the gas collection bottle.
In this embodiment, the gas collector 7 is connected to the rope 5 through a buckle 6, the buckle 6 includes a buckle body 602 and a screw 601, the buckle body 602 is provided with a groove, the rope 5 is arranged in the groove, and the screw 601 penetrates through the groove and fastens the rope 5. Of course, the above-mentioned connection method is only a preferred technical solution, and the fixing method of the gas collector 7 and the rope 5 is flexible, and even when the conditions are limited, the short rope of the gas collector 7 can be directly fastened with the rope 5, so that other connection methods can be regarded as technical solutions that can be easily thought by those skilled in the art, and are not described herein again.
In other embodiments, the technical solutions that the pick-and-place mechanism can be configured in different structures can be exemplified by: the retraction and extension mechanism comprises a first chain wheel fixed on the auxiliary rod 2, a second chain wheel arranged on the shore, and a chain meshed with the first chain wheel and the second chain wheel, and the gas collector 7 is fixed on the chain. In this embodiment, the first pulley 3, the second pulley 4, and the rope 5 of the above embodiment can be replaced with a first sprocket, a second sprocket, and a chain, respectively, and the requirement for retracting and releasing the gas collector 7 can still be satisfied by chain transmission. In practical use, the specific length of the rope 5 or chain is selected according to the size of the water area and the collection requirements.
Further, the embodiments of the retracting mechanism are described as examples, and it is expected that the retracting mechanism can be realized by using a lead screw, a stepping motor, or the like, and therefore, the retracting mechanism having at least the above-described structure should be considered to be within the concept of the present invention.
To further illustrate the embodiment of the present invention, the following briefly describes the steps of using the device for collecting greenhouse gases in a section of a water area according to the embodiment of the present invention:
1. a sampling sample belt (section) is selected in a collection water area, a main rod 1 is inserted into the water area at the end of the sample belt by driving the boat, and an auxiliary rod 2, a first pulley 3 and a rope 5 are installed.
2. Returning to the shore to fix the second pulley 4 on the shore, and sleeving the rope 5 on the second pulley 4;
3. according to the offshore far and near and underwater micro-terrain forms of the research section, a plurality of gas collectors 7 are connected to the rope 5, and the box body 702 of the gas collectors 7 is lightly placed on the water surface, so that the opening at the bottom of the box body 702 is completely sealed by the water surface, and the arrangement before sampling is completed;
4. when sampling is started, the rope 5 is slowly pulled or the second pulley 4 is rotated, so that the gas collector 7 is completely and stably moved to a sampling water area for sampling;
5. when sampling is finished, the rope 5 is slowly pulled or the second pulley 4 is rotated, so that the gas collector 7 is completely and stably moved to the shore but cannot leave the water surface, and then the gas in the box body 702 is sucked into the injector 701 by using the injector 701 and is transferred into a collecting bottle, thereby completing sampling work.
Although terms indicating structure such as "pulley", "lever", etc. have been used more above, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a waters section greenhouse gas collection system for collect the greenhouse gas of waters release, its characterized in that includes:
a main pole capable of being inserted into the water and partially exposed out of the water;
one end of the retraction mechanism is connected with the main rod, and the other end of the retraction mechanism is fixed on the bank;
the gas collector floats on the water surface to collect gas, is connected with the retraction jack and can move between a water area and a shore under the drive of the retraction jack.
2. The water area section greenhouse gas collecting device as recited in claim 1, further comprising an auxiliary rod connected to and movable along said main rod, wherein one end of said retracting mechanism is connected to said main rod through said auxiliary rod.
3. The water area section greenhouse gas collection device of claim 2, wherein the retraction mechanism comprises a first pulley fixed on the secondary rod, a second pulley arranged on the shore, and a rope sleeved between the first pulley and the second pulley, and the gas collector is fixed on the rope.
4. The water area section greenhouse gas collection device of claim 1, wherein the gas collector comprises a tank that floats on the water surface, and only a bottom opening of the tank is used for collecting gas released by the water area into the tank.
5. The water area section greenhouse gas collection device of claim 4, wherein the gas collector further comprises a gas extractor comprising an injector in communication with the tank.
6. The water area section greenhouse gas collecting device as recited in claim 4, wherein the bottom edge of the box body is extended outward to form a flange portion, and the flange portion is made of a light material having a density lower than that of water.
7. The greenhouse gas collecting device for water area sections as claimed in claim 3, wherein the gas collector is connected with the rope by a buckle 6, the buckle 6 comprises a buckle body and a screw, the buckle body is provided with a groove, the rope is arranged in the groove, and the screw passes through the groove and fastens the rope.
8. A water area section greenhouse gas collection device as claimed in claim 2, wherein said primary rod is provided with a chute, said secondary rod is connected to said primary rod through said chute and can slide in said chute, said primary rod is provided with a scale.
9. The water area section greenhouse gas collection device of claim 5, wherein the gas extractor further comprises a three-way valve disposed on and in communication with the tank, the injector being in communication with the tank through the three-way valve.
10. The water area section greenhouse gas collecting device as claimed in claim 2, wherein the retraction mechanism comprises a first chain wheel fixed on the auxiliary rod, a second chain wheel arranged on the shore, and a chain engaged with the first chain wheel and the second chain wheel, and the gas collector is fixed on the chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064682.9A CN113640069A (en) | 2021-09-09 | 2021-09-09 | Water area section greenhouse gas collection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064682.9A CN113640069A (en) | 2021-09-09 | 2021-09-09 | Water area section greenhouse gas collection system |
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| CN113640069A true CN113640069A (en) | 2021-11-12 |
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| CN202111064682.9A Pending CN113640069A (en) | 2021-09-09 | 2021-09-09 | Water area section greenhouse gas collection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990089A (en) * | 2023-07-31 | 2023-11-03 | 珠海深圳清华大学研究院创新中心 | Monitoring device and method for directly discharging sewage greenhouse gases |
-
2021
- 2021-09-09 CN CN202111064682.9A patent/CN113640069A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990089A (en) * | 2023-07-31 | 2023-11-03 | 珠海深圳清华大学研究院创新中心 | Monitoring device and method for directly discharging sewage greenhouse gases |
| CN116990089B (en) * | 2023-07-31 | 2024-03-12 | 珠海深圳清华大学研究院创新中心 | Monitoring device and method for directly discharging sewage greenhouse gases |
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