CN102353560A - Gathering device for gas released by water body and sampling method thereof - Google Patents
Gathering device for gas released by water body and sampling method thereof Download PDFInfo
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- CN102353560A CN102353560A CN2011101552388A CN201110155238A CN102353560A CN 102353560 A CN102353560 A CN 102353560A CN 2011101552388 A CN2011101552388 A CN 2011101552388A CN 201110155238 A CN201110155238 A CN 201110155238A CN 102353560 A CN102353560 A CN 102353560A
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Abstract
The invention, which belongs to the resource and environment technology field, relates to a gathering device for gas released by a water body and a sampling method thereof. The device comprises a floating ball support; a semisphere cylinder gas collection tank is suspended on the floating ball support; a gas outlet is arranged at the top of the tank and a valve is installed; a gas collector is suspended at the top of the support; and an air intake of the gas collector is connected with the gas outlet of the semisphere cylinder gas collection tank and a drain pipe is directly dipped into water. When gas is collected, the device is placed on a sampling point of a water surface; when the valve is opened, the semisphere cylinder gas collection tank is completely immersed into water and gases in the gas collection tank are completely discharged; and gases that are produced by a water body that is below the gas collection tank and is covered by the gas collection tank is gathered along an inner wall of the gas collection tank towards the top of the gas collection tank. According to dewatering and gas collection principles, water in the gas collector is discharged and to-be-measured gases that are released by the water body enter the gas collector, so that a purpose that real-time and automatic collection is carried out on gases released by a water body can be realized. According to the invention, a problem that research work is lacked of applicative closed gas collection equipment can be effectively solved, wherein the research work includes researches on production of gases released by different water bodies, releasing laws and gas components.
Description
Technical field
The invention belongs to technical field of resource environments, relate to a kind of water body and discharge the gas collector and the method for sampling thereof.
Background technology
Eutrophication water generally is considered to important greenhouse gases source of release, as: CO
2, CH
4, N
2O.Constantly rise at current water body eutrophication degree, and under the environmental background of global warming, people change more and more concern to the release strength of water body percent of greenhouse gases.In addition, nitrated-anti-nitration reaction that eutrophication water takes place is one of important channel of water body denitrification, the middle gaseous products N of nitrated-anti-nitration reaction
2O and final gaseous products N
2Release also receive more concern.Yet, for a long time, lack a kind of effective water body always and discharge gas collector, make that the progress of this respect is slow relatively.
The method that adopts mainly is the static chamber method at present; It is directly sampled with the inversion casing of sealing; Base need be fixed in the bed mud of sampled point during sampling; Implement very inconvenience; And the sampling thief of this method is not in communication with the outside in sampling process; So negative pressure appearance must occur, cause the acceleration volatilization of gas, thereby make sampled result not accurate enough.For there is a body of water, soil surface volatile gas collection device, which is a dynamic box method, the sampling of the housing to the fixed (no cover upside down), with a gas cartridge equipped with a nitrogen feed gas to the dynamic acquisition box, with nitrogen as the mobile carrier, a dynamic equilibrium after that, when the original deposit box carrier gas expelled gas is finished, began to collect gas samples, the main drawback of this method is that it applies only to the large amount of target gas and volatiles evaporate faster the case of non-nitrogen gases collected, and the water release of gas to atmosphere interface is a relatively slow process, and acquisition target gases CH
4 , N
2 O, N
2 and so on, so the development of new, more accurate and effective sampling equipment and sampling methods have important practical value.
Summary of the invention
To the problem that prior art exists, the objective of the invention is to propose a kind of sample collecting accurately, operation is simple and the convenient water body of implementing discharges the gas collector and the method for sampling thereof.
The water body that the present invention developed discharges gas collector, and its system architecture comprises ball float support, hemisphere cylinder plenum chamber, gas bottle, draft tube, drainpipe, valve; Described ball float support is made up of square ball float base and arch support, and the ball float base is formed by connecting ball float and pvc pipe, and four ball floats on the base diagonal line support entire bracket; Described hemisphere cylinder plenum chamber is used to collect the gas that water body produces, and the bottom surface of case is that gaseous sample is collected mouth, and the top of case is provided with the gas outlet and valve is housed, and the casing equalizing suspension system is on four limits of ball float support; Described gas bottle is inverted the top that hangs on the ball float support, is full of the water bottle mouth and seals with rubber stopper, and to draft tube and drainpipe should be arranged, draft tube links to each other with the gas outlet of hemisphere cylinder plenum chamber on it, communicates with water body in the directly vertical entry of drainpipe.
Hemisphere cylinder plenum chamber of the present invention can adopt semisphere and columniform organic glass case to be spliced.
Described ball float support can adopt the solid foam ball float to support.
Described gas bottle can adopt the glass infusion bottle that has rubber stopper.
Adopt sampling apparatus collection of the present invention by the method for water body to the gas that atmosphere interface discharged, its operation steps is following:
The first step; The water body that to be furnished with the ball float support discharges gas collector and is positioned on the water surface sampled point, opens the valve of hemisphere cylinder plenum chamber gas outlet, casing is immersed in fully the water body that covers certain area in the water; After gas in the plenum chamber discharged fully, valve-off;
Second step, gas bottle is filled water, bottleneck seals with rubber stopper, hangs upside down in the ball float cantilever tip, and draft tube links to each other with the gas outlet of hemisphere cylinder plenum chamber, communicates with water body in the directly vertical entry of drainpipe;
The 3rd step; After the solubleness of gas in water that the below water body that plenum chamber covers produces reaches capacity; Unnecessary gas is separated out, and forms bubble, and bubble is under buoyancy; Assemble to the top along hemisphere cylinder plenum chamber inwall; Finally peak compiles on the plenum chamber top, and according to draining gas collection principle, water is discharged in the gas bottle; The gas to be measured that water body discharges gets into gas bottle, realizes automatically collecting in real time the purpose that water body discharges gas.
The present invention has following advantage and effect:
(1) major advantage of present device and method is; The one, sampling thief in the sampling process (hemisphere post plenum chamber) is in communication with the outside through the drainpipe of gas bottle, has avoided in the operating process of traditional static case method because the acceleration due to the negative pressure or suppress gaseous emission, shortcoming that error is bigger.The 2nd, the gas that does not need whenever to go to extract in the static chamber at a distance from an end time manual work is sampled, and has realized the automatic time collection of water body gas, only needs that sampling bottle is delivered to lab analysis and gets final product.The 3rd, need not charge into other gas as carrier, do not need additional power supply, but also avoided the object gas background values analysis of high limited shortcoming of distortion analytical gas kind as a result due to the dynamic case method simultaneously.
(2) present device and method; Equipment volume is little, composition is simple, with low cost; Can gather accurately and effectively by water body to gas that atmosphere interface discharged; Variation through sampling bottle weight obtains the diffusion flux that the unit area water body discharges gas; Efficiently solve that current different water body is gas generated, in the research work of release rule and composition thereof, lack the problem of suitable closed gas recovery facility.
Description of drawings
Fig. 1 is the system construction drawing of water body gas collecting device of the present invention.
1. ball float supports among the figure, 2. gas bottle, 3. draft tube, 4. drainpipe, 5. hemisphere cylinder plenum chamber, 6. valve.
Embodiment
The structure of this water body gas collecting device embodiment as shown in Figure 1, its system comprises members such as ball float support 1, gas bottle 2, draft tube 3, drainpipe 4, hemisphere cylinder plenum chamber 5, valve 6.Ball float support 1 is made up of square ball float base and arch support, and the ball float base is formed by connecting solid foam ball float and pvc pipe, and four ball floats on the base diagonal line support entire bracket.Hemisphere cylinder plenum chamber 5 is spliced by semisphere and columniform organic glass case; Be used to collect the gas that produces by water body; The bottom surface of case is that gaseous sample is collected mouth, and the top of case is provided with the gas outlet and valve 6 is housed, and the casing equalizing suspension system is on four limits of ball float support.Gas bottle 2 is a glass infusion bottle that has rubber stopper; Inversion hangs on the top of ball float support 1, and bottleneck seals with rubber stopper, on it to draft tube 3 and drainpipe 4 should be arranged; Draft tube 3 links to each other with the gas outlet of hemisphere cylinder plenum chamber 5, communicates with water body in the drainpipe 4 directly vertical entry.
During sampling, the water body gas collecting device that will be furnished with ball float support 1 is positioned on the water surface sampled point, opens the valve 6 of hemisphere cylinder plenum chamber 5 gas outlets; Be immersed in casing in the water fully; Cover the water body of certain area, after gas in the casing is all discharged, valve-off 6.Gas bottle 2 is filled water, and bottleneck seals with rubber stopper, hangs upside down in ball float support 1 top, and draft tube 3 links to each other with the gas outlet of hemisphere cylinder plenum chamber 5, communicates with water body in the drainpipe 4 directly vertical entry.After the solubleness of gas in water that the below water body that plenum chamber covers produces reaches capacity; Unnecessary gas is separated out; Form bubble; Bubble is under buoyancy; Assemble to the top along hemisphere cylinder plenum chamber 5 inwalls; Finally peak compiles on the plenum chamber top; According to draining gas collection principle; Water in the gas bottle 2 enters in the water body through drainpipe 4; The gas that hemisphere cylinder plenum chamber 5 tops are compiled gets in the gas bottle 2; Thereby automatically collect the gas that water body discharges to atmosphere interface in real time, can be continuous; The quantitative examination water body discharges gas and produces rule, and the composition of collection analysis output gas.
Claims (4)
1. a water body discharges gas collector, it is characterized in that comprising ball float support (1), hemisphere cylinder plenum chamber (5), gas bottle (2), draft tube (3), drainpipe (4), valve (6); Described ball float support (1) is made up of square ball float base and arch support, and the ball float base is formed by connecting ball float and pvc pipe, and four ball floats on the base diagonal line support entire bracket; Described hemisphere cylinder plenum chamber (5) is used to collect the gas that water body produces, and the bottom surface of case is that gaseous sample is collected mouth, and the top of case is provided with the gas outlet and valve (6) is housed, and the casing equalizing suspension system is on four limits of ball float support; Described gas bottle (2) is inverted the top that hangs on ball float support (1); Bottleneck seals with rubber stopper; To draft tube (3) and drainpipe (4) should be arranged, draft tube (3) links to each other with the gas outlet of hemisphere cylinder plenum chamber (5) on it, communicates with water body in the directly vertical entry of drainpipe (4).
2. water body gas collecting device according to claim 1 is characterized in that described hemisphere cylinder plenum chamber (5) adopts semisphere and columniform organic glass case to be spliced.
3. water body gas collecting device according to claim 1 is characterized in that described ball float support (1) can adopt the solid foam ball float to support.
4. water body gas collecting device according to claim 1 is characterized in that described gas bottle (2) can adopt the glass infusion bottle that has rubber stopper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110155238.8A CN102353560B (en) | 2011-06-10 | 2011-06-10 | Gathering device for gas released by water body and sampling method thereof |
| CA2770612A CA2770612C (en) | 2011-06-10 | 2012-03-09 | Device for sampling ebullition and sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110155238.8A CN102353560B (en) | 2011-06-10 | 2011-06-10 | Gathering device for gas released by water body and sampling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102353560A true CN102353560A (en) | 2012-02-15 |
| CN102353560B CN102353560B (en) | 2017-02-15 |
Family
ID=45577168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110155238.8A Active CN102353560B (en) | 2011-06-10 | 2011-06-10 | Gathering device for gas released by water body and sampling method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102353560B (en) |
| CA (1) | CA2770612C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608273A (en) * | 2012-03-23 | 2012-07-25 | 重庆大学 | Method for collecting underwater bubbles and method for monitoring underwater bubble flux under hydrodynamic conditions |
| WO2014000685A1 (en) * | 2012-06-29 | 2014-01-03 | 华瑞科学仪器(上海)有限公司 | Sampling and detection device for volatile organic compound in water |
| CN104390815A (en) * | 2013-10-23 | 2015-03-04 | 中国科学院地球环境研究所 | Automatic gas collection device and method thereof |
| CN105067789A (en) * | 2015-10-01 | 2015-11-18 | 南华大学 | Open-loop type in-situ measurement method and device for exhalation rate of radon in water body |
| CN106644609A (en) * | 2017-01-17 | 2017-05-10 | 中国地质科学院岩溶地质研究所 | System for obtaining gas in soil |
| CN106770976A (en) * | 2017-01-22 | 2017-05-31 | 环境保护部南京环境科学研究所 | Long-range unattended liquid level volatilization gas automatic detection device and its application method |
| CN106918473A (en) * | 2015-12-25 | 2017-07-04 | 中国水利水电科学研究院 | A kind of water-vapor interface bubble flux collection device |
| CN107064370A (en) * | 2017-04-26 | 2017-08-18 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of new device for determining water body diffused methane release flux |
| CN108760406A (en) * | 2018-05-16 | 2018-11-06 | 福建师范大学 | A kind of water/sediment interface greenhouse gases collection device |
| CN110954532A (en) * | 2019-11-28 | 2020-04-03 | 吉林大学 | Soil nutrient detection device based on visual smell sense |
| CN111013829A (en) * | 2019-12-12 | 2020-04-17 | 西藏华泰龙矿业开发有限公司 | Inflation amount detection device of flotation machine |
| CN113484100A (en) * | 2021-07-03 | 2021-10-08 | 杭州亚太建设监理咨询有限公司 | Greenhouse gas collecting device |
Families Citing this family (2)
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| CN104236954B (en) * | 2014-09-19 | 2016-09-14 | 北京工业大学 | Sewage treatment plant processing unit water surface N2the collection device of O and the method for sampling |
| CN109387453B (en) * | 2018-10-12 | 2024-04-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Continuous and automatic monitoring device and method for methane bubble release in lakes and reservoirs |
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| US4166791A (en) * | 1977-08-04 | 1979-09-04 | Marvin Mark C | Sewage gas collection reservoir |
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| CN201611318U (en) * | 2009-12-15 | 2010-10-20 | 上海市民办尚德实验学校 | Efficient gas collecting device |
| CN202471679U (en) * | 2012-03-23 | 2012-10-03 | 重庆大学 | Underwater bubble collecting device under hydrodynamic force condition |
| CN202638453U (en) * | 2012-06-14 | 2013-01-02 | 佳木斯大学 | Gas collecting and metering device |
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2011
- 2011-06-10 CN CN201110155238.8A patent/CN102353560B/en active Active
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2012
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Patent Citations (5)
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| US4166791A (en) * | 1977-08-04 | 1979-09-04 | Marvin Mark C | Sewage gas collection reservoir |
| US4749493A (en) * | 1986-10-07 | 1988-06-07 | Hicks Charles E | Method and apparatus for oxygenating water |
| CN201611318U (en) * | 2009-12-15 | 2010-10-20 | 上海市民办尚德实验学校 | Efficient gas collecting device |
| CN202471679U (en) * | 2012-03-23 | 2012-10-03 | 重庆大学 | Underwater bubble collecting device under hydrodynamic force condition |
| CN202638453U (en) * | 2012-06-14 | 2013-01-02 | 佳木斯大学 | Gas collecting and metering device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608273B (en) * | 2012-03-23 | 2014-07-23 | 重庆大学 | Method for collecting underwater bubbles and method for monitoring underwater bubble flux under hydrodynamic conditions |
| CN102608273A (en) * | 2012-03-23 | 2012-07-25 | 重庆大学 | Method for collecting underwater bubbles and method for monitoring underwater bubble flux under hydrodynamic conditions |
| WO2014000685A1 (en) * | 2012-06-29 | 2014-01-03 | 华瑞科学仪器(上海)有限公司 | Sampling and detection device for volatile organic compound in water |
| US9983182B2 (en) | 2012-06-29 | 2018-05-29 | Rae Systems (Shanghai) Inc. | Device for sampling and detecting volatile organic compounds in water |
| CN104390815A (en) * | 2013-10-23 | 2015-03-04 | 中国科学院地球环境研究所 | Automatic gas collection device and method thereof |
| CN105067789A (en) * | 2015-10-01 | 2015-11-18 | 南华大学 | Open-loop type in-situ measurement method and device for exhalation rate of radon in water body |
| CN111721592A (en) * | 2015-12-25 | 2020-09-29 | 中国水利水电科学研究院 | Bubble flux collecting device for water-gas interface |
| CN106918473A (en) * | 2015-12-25 | 2017-07-04 | 中国水利水电科学研究院 | A kind of water-vapor interface bubble flux collection device |
| CN106644609A (en) * | 2017-01-17 | 2017-05-10 | 中国地质科学院岩溶地质研究所 | System for obtaining gas in soil |
| CN106770976A (en) * | 2017-01-22 | 2017-05-31 | 环境保护部南京环境科学研究所 | Long-range unattended liquid level volatilization gas automatic detection device and its application method |
| CN106770976B (en) * | 2017-01-22 | 2023-11-03 | 生态环境部南京环境科学研究所 | Automatic detection device for remotely unattended liquid level volatile gas and use method thereof |
| CN107064370A (en) * | 2017-04-26 | 2017-08-18 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of new device for determining water body diffused methane release flux |
| CN108760406A (en) * | 2018-05-16 | 2018-11-06 | 福建师范大学 | A kind of water/sediment interface greenhouse gases collection device |
| CN110954532A (en) * | 2019-11-28 | 2020-04-03 | 吉林大学 | Soil nutrient detection device based on visual smell sense |
| CN110954532B (en) * | 2019-11-28 | 2021-07-02 | 吉林大学 | Soil nutrient detection device based on visual smell sense |
| CN111013829A (en) * | 2019-12-12 | 2020-04-17 | 西藏华泰龙矿业开发有限公司 | Inflation amount detection device of flotation machine |
| CN113484100A (en) * | 2021-07-03 | 2021-10-08 | 杭州亚太建设监理咨询有限公司 | Greenhouse gas collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2770612A1 (en) | 2012-05-16 |
| CA2770612C (en) | 2013-03-12 |
| CN102353560B (en) | 2017-02-15 |
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