CN202101879U - Water surface greenhouse gas emission measurement floating box - Google Patents
Water surface greenhouse gas emission measurement floating box Download PDFInfo
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- CN202101879U CN202101879U CN2011202106892U CN201120210689U CN202101879U CN 202101879 U CN202101879 U CN 202101879U CN 2011202106892 U CN2011202106892 U CN 2011202106892U CN 201120210689 U CN201120210689 U CN 201120210689U CN 202101879 U CN202101879 U CN 202101879U
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Abstract
Disclosed is a water surface greenhouse gas emission measurement floating box. The bottom of a box body is through, a floating device is arranged on the outer side of the box body, the box body is provided with a gas sample hole, and a tinfoil reflecting material layer is wrapped on the periphery of the box body. The water surface greenhouse gas emission measurement floating box is characterized in that a circular ventilating hole is further arranged on the upper side of the box body and provided with a matched soft plug. Compared with a traditional static sampling box, the water surface greenhouse gas emission measurement floating box has the following advantages that the inside of the box body is communicated with the external, observed water surface pressure cannot be changed, after the box body is placed, the ventilating hole is sealed by the soft plug, gas samples are collected, two ends of the box body are connected with fixing ropes, when in mobile sampling, adjacent box bodies are connected pairwise via fixing ropes, a plurality of box bodies form a measurement floating box group and are successively placed in water, and a person only needs to pull one end of the last box body via an extension rope and walks on a shore side to catch up with the floating speed of the box bodies. The water surface greenhouse gas emission measurement floating box is applicable to different flowing conditions of water surfaces, can be fixed or can float, and obviously improves measurement precision.
Description
Technical field
The utility model is that flotation tank is measured in a kind of water surface greenhouse gas emission; Can carry out the device that greenhouse gas emissions are measured at waters surface static or current water such as reservoir, river, pond, lakes; Can belong to the environmental monitoring field to the measurement quick and precisely of water-aerosphere face N2O, CO2, CH4 isothermal chamber gaseous emission speed.
Background technology
Measuring the most frequently used method of water surface greenhouse gas emission speed at present is the static chamber method; It is through placing the organic glass case or the PVC casing of a top seal in water surface, the casing top layer is wrapped with masking foil, and the tire of outside placement and air tube size or foam are so that bubble through the water column; The casing outside has static line to be used for fixing casing in water surface top; There is thieff hatch the casing top, and is logical in the bottom half, collects the greenhouse gases of surface water with the diffusion way discharging.The static chamber method is because cost is low, for convenience detach and carry; Being convenient to connect realization with online analytical instrument monitors in real time; Be used widely; But also there is significant disadvantages in this method: 1) casing does not have unified design standards, and different gas hybrid mode in different size and the casing possibly cause the deviation of observed result; 2) casing has disturbance to object of observation; Change the natural turbulent flow conditions of water surface air, especially when casing places water surface top, can change the pressure of observation water surface top; The gas exchange process that this possibly influence between water body and the atmosphere makes the result who records depart from truth; 3) under the observation condition that wind or current water are arranged, the disturbance that the friction of casing and surface water causes possibly cause extra greenhouse gas emission, influences the accuracy of observed result.4) there is very big error in the flux data on the static chamber method can only obtain a little usually through point data estimation section greenhouse gas emission speed and flux.
Summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the purpose of the utility model is to provide a kind of water surface greenhouse gas emission to measure flotation tank, be a kind of portable, accurately measure the flotation tank of water surface greenhouse gas emission.
Comprise in order to reach the technical scheme that this purpose takes: flotation tank is measured in a kind of water surface greenhouse gas emission; Logical in the bottom of casing, the casing outside is provided with flotation gear, and casing is provided with gas appearance hole; The casing periphery is wrapped with the tinfoil paper reflective material layer; It is characterized in that this casing top also is provided with a round vent, said round vent is provided with supporting cork.
The prioritization scheme of the utility model has:
Tank ends is connected with static line;
Said gas appearance hole is provided with the sampling pad;
Be provided with and said gas appearance hole and the supporting bidirectional sample pin of sampling pad.
In other words, the utility model is a kind of with logical casing in the bottom of PVC material, and the casing outside is provided with flotation gear; Tank ends is connected with static line; Casing is provided with the gas appearance hole of band sampling pad, and two-way needle sampler is used in said gas appearance hole, and the casing periphery is wrapped with the tinfoil paper reflective material layer; The casing top also has a round vent, and said air hole has supporting cork.
The utility model is compared with the traditional static sampling box; Have the following advantages: 1) there is a round vent casing top; When casing is positioned over water surface top, box house and external communications, thereby can not change the observation water surface pressure; The disturbance that the water surface is produced reaches minimum, makes aquatic environment keep original state as far as possible.With cork air hole is sealed again after placing casing, gather gas sample; 2) tank ends is connected with static line, can adapt to the different mobility status of the water surface, can fix and can drift about.In the time of fixedly, it is fixing more more convenient, more stable than the casing that an end is connected with static line that two ends are connected with static line; When drifting about in the water, with the continuous in twos water body of putting into successively of adjacent casing, the people only needs through prolonging the end that rope haul last casing, and walking is to catch up with the floating velocity of casing on the bank.During test sample, only need slowly can be sampled in the casing bank of furthering successively.3) cabinet design is less, and the gas incorporation time is short in the case, receives the influence of water surface wind action also little; 4) casing adopts PVC material and periphery to be wrapped with the tinfoil paper reflectorized material, has good thermal insulation, and it is excessive effectively to avoid measuring the lower box internal-external temperature difference for a long time.The utility model is on existing static chamber basis, to improve, and has overcome static chamber and has not been suitable for current water, can only obtain a little to go up the defective of flux data; Through the method for casing top air hole, significantly reduced the pressure that causes when casing places water surface top and changed, thereby improved measuring accuracy simultaneously.
Description of drawings
Fig. 1 is this flotation tank framework synoptic diagram.
Embodiment
During sampling, carefully flotation tank is placed water, the casing lower end is not in about 2cm under water; With supporting cork round vent 5 is sealed; Use insertion thieff hatch 4 of bidirectional sample pin then, preprepared vacuum sampling bottle is inserted in the other end, treat Dewar bottle air pressure and tank pressure balance after; Regain sampling bottle, extract the bidirectional sample pin.With the method every at a distance from about 10 minutes once sampling, continuous sampling 5 times is as a repetitive sequence, the greenhouse gas emission speed that concentration difference and the sampling time interval through sample can calculate water body.After each sequence has been adopted, take away cork with the balance air, pack up case.
During grab sampling,, or be bolted at both sides with two static lines or suspension top; When flowing sampling, adjacent casing is linked to each other through static line in twos, some casings constitute measures the flotation tank group, puts into water body successively, and the people only needs through prolonging the end that rope hauls last casing, and walking is to catch up with the floating velocity of casing on the bank.During test sample, only need slowly can be sampled in the casing bank of furthering successively.In observation process, need the physical and chemical index of synchro measure waters wind speed, temperature, water temperature, atmospheric pressure, water body, in order to calculate water-aerosphere surface green house gas flux and influence factor thereof.
Claims (5)
1. flotation tank is measured in a water surface greenhouse gas emission; Logical in the bottom of casing, the casing outside is provided with flotation gear, and casing is provided with gas appearance hole; The casing periphery is wrapped with the tinfoil paper reflective material layer; It is characterized in that this casing top also is provided with a round vent, said round vent is provided with supporting cork.
2. require 1 described water surface greenhouse gas emission to measure flotation tank according to letter of authorization, it is characterized in that said tank ends is connected with static line.
3. require 1 or 2 described water surface greenhouse gas emissions to measure flotation tank according to letter of authorization, it is characterized in that, said gas appearance hole is provided with the sampling pad.
4. require 3 described water surface greenhouse gas emissions to measure flotation tank according to letter of authorization, it is characterized in that, be provided with and said gas appearance hole and the supporting bidirectional sample pin of sampling pad.
5. measure flotation tank according to one of letter of authorization requirement 2 ~ 4 described water surface greenhouse gas emission, it is characterized in that, adjacent casing links to each other through static line in twos, and some casings constitute measurement flotation tank group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202106892U CN202101879U (en) | 2011-06-21 | 2011-06-21 | Water surface greenhouse gas emission measurement floating box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202106892U CN202101879U (en) | 2011-06-21 | 2011-06-21 | Water surface greenhouse gas emission measurement floating box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101879U true CN202101879U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202106892U Expired - Fee Related CN202101879U (en) | 2011-06-21 | 2011-06-21 | Water surface greenhouse gas emission measurement floating box |
Country Status (1)
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018410A (en) * | 2012-12-11 | 2013-04-03 | 中国长江三峡集团公司 | Online measurement device of gas flux on air-water interface of riverway |
| CN103033598A (en) * | 2012-12-11 | 2013-04-10 | 中国长江三峡集团公司 | Method for online measurement of air flux of air-water interface of river |
| CN103792112A (en) * | 2014-01-16 | 2014-05-14 | 中国科学院东北地理与农业生态研究所 | Water-gas interface room temperature gas PVC (polyvinyl chloride) sampling box |
| CN103901177A (en) * | 2014-02-19 | 2014-07-02 | 河海大学 | Measuring box and method for measuring exhausting flux of greenhouse gas on water surface |
| CN104535378A (en) * | 2014-12-11 | 2015-04-22 | 哈尔滨东方报警设备开发有限公司 | Air exhaust floater used on liquid surface |
| CN104819913A (en) * | 2015-04-16 | 2015-08-05 | 中国科学院广州地球化学研究所 | Air-water interface flux detection method |
| CN106198305A (en) * | 2016-09-13 | 2016-12-07 | 成都创慧科达科技有限公司 | A kind of greenhouse gas emissions detection device |
| CN106323698A (en) * | 2016-11-10 | 2017-01-11 | 四川农业大学 | Connected type convenient static floating device |
| 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 |
| CN107064415A (en) * | 2016-09-30 | 2017-08-18 | 海南省环境科学研究院 | A kind of liquid level volatilization gas automatic detecting structure |
| CN107422067A (en) * | 2016-05-24 | 2017-12-01 | 西原环保工程(上海)有限公司 | Cesspool foul smell analoging detecting device |
| CN107490544A (en) * | 2017-08-28 | 2017-12-19 | 中国石油天然气集团公司 | The in-site detecting device and its assay method of recovered water loss greenhouse gases |
| CN109781477A (en) * | 2019-03-15 | 2019-05-21 | 东北师范大学 | A kind of greenhouse gas emission flux observed samples device of thicket type carex swamp |
| 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 |
| CN114646730A (en) * | 2022-03-11 | 2022-06-21 | 光大环境科技（中国）有限公司 | Method for measuring gas emission flux of non-structured surface source |
-
2011
- 2011-06-21 CN CN2011202106892U patent/CN202101879U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018410A (en) * | 2012-12-11 | 2013-04-03 | 中国长江三峡集团公司 | Online measurement device of gas flux on air-water interface of riverway |
| CN103033598A (en) * | 2012-12-11 | 2013-04-10 | 中国长江三峡集团公司 | Method for online measurement of air flux of air-water interface of river |
| CN103792112A (en) * | 2014-01-16 | 2014-05-14 | 中国科学院东北地理与农业生态研究所 | Water-gas interface room temperature gas PVC (polyvinyl chloride) sampling box |
| CN103901177A (en) * | 2014-02-19 | 2014-07-02 | 河海大学 | Measuring box and method for measuring exhausting flux of greenhouse gas on water surface |
| CN104535378A (en) * | 2014-12-11 | 2015-04-22 | 哈尔滨东方报警设备开发有限公司 | Air exhaust floater used on liquid surface |
| WO2016165207A1 (en) * | 2015-04-16 | 2016-10-20 | 中国科学院广州地球化学研究所 | Air-water interface flux detection method |
| CN104819913B (en) * | 2015-04-16 | 2018-10-26 | 中国科学院广州地球化学研究所 | Gas-water termination flux detection method |
| CN104819913A (en) * | 2015-04-16 | 2015-08-05 | 中国科学院广州地球化学研究所 | Air-water interface flux detection method |
| 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 |
| CN107422067A (en) * | 2016-05-24 | 2017-12-01 | 西原环保工程(上海)有限公司 | Cesspool foul smell analoging detecting device |
| CN106198305A (en) * | 2016-09-13 | 2016-12-07 | 成都创慧科达科技有限公司 | A kind of greenhouse gas emissions detection device |
| CN107064415A (en) * | 2016-09-30 | 2017-08-18 | 海南省环境科学研究院 | A kind of liquid level volatilization gas automatic detecting structure |
| CN107064415B (en) * | 2016-09-30 | 2019-07-16 | 海南省环境科学研究院 | A kind of liquid level volatilization gas automatic detecting structure |
| CN106323698A (en) * | 2016-11-10 | 2017-01-11 | 四川农业大学 | Connected type convenient static floating device |
| 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 |
| CN107490544A (en) * | 2017-08-28 | 2017-12-19 | 中国石油天然气集团公司 | The in-site detecting device and its assay method of recovered water loss greenhouse gases |
| CN109781477A (en) * | 2019-03-15 | 2019-05-21 | 东北师范大学 | A kind of greenhouse gas emission flux observed samples device of thicket type carex swamp |
| CN114646730A (en) * | 2022-03-11 | 2022-06-21 | 光大环境科技（中国）有限公司 | Method for measuring gas emission flux of non-structured surface source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140621 |
|
| EXPY | Termination of patent right or utility model |