CN201004028Y - A soil section air collector - Google Patents
A soil section air collector Download PDFInfo
- Publication number
- CN201004028Y CN201004028Y CNU2007201005192U CN200720100519U CN201004028Y CN 201004028 Y CN201004028 Y CN 201004028Y CN U2007201005192 U CNU2007201005192 U CN U2007201005192U CN 200720100519 U CN200720100519 U CN 200720100519U CN 201004028 Y CN201004028 Y CN 201004028Y
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- soil
- gas
- gas collecting
- collector
- collecting device
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Abstract
The utility model provides a gas collector of the soil section, which is characterized in that the collector consists of a protective sleeve and an air collecting pipe arranged at the internal of the sleeve, the pipe wall of the bottom part of protective sleeve is evenly provided with air inlet, the top part of the colleting pipe is provided with valve, the bottom end of the colleting pipe is extended to air storage chamber corresponding with the air input hole on the sleeve. Comparing with prior art the utility model has the advantages that the damage and disturb to the soil when collecting soil gas is reduced, the examination error is eliminated, the examination accuracy and precision are improved, the collector is also enabled to be arranged on different soil depth according to the examination requirement to collect soil gas in different depths, and then the concentration gradient and diffusion rate of gas in different depths can be estimated; the utility model also has the advantages of simple structure, economical cost, labor and time saving, which is suitable for synchronously observing in a plurality of points.
Description
Technical field
The utility model relates to a kind of soil profile gas collecting device, especially is fit to soil profile different levels gas collecting, belongs to the test apparatus equipment technical field.
Background technology
Global climate and environmental change are one of current problem in science of greatest concern, generation mechanism, influence factor and the corresponding reduction of discharging measure of research soil percent of greenhouse gases, for the control greenhouse gas emission, maintaining ecological balance, improve China people's living environment quality, have important practical significance undoubtedly.Directly at field position-finding gas escaped quantity, especially greenhouse gases, be the focus and the difficult point in soil investigation field always.People have carried out big quantity research to the discharging of face of land greenhouse gases, but the report that greenhouse gas emission is studied to soil profile seldom, and this mainly is the restriction of instrument of being put to the test.At present, when the researcher gathers the gas of soil profile different levels, need usually to dig a soil profile, gas acquisition probe is installed then in sample area.In this case, the soil layer around the gas acquisition probe has been subjected to very serious disturbance, and its measured value can not be represented the primitive soil layer state exactly, brings very big sum of errors uncertainty to test findings.
Summary of the invention
The purpose of this utility model is to provide a kind of inexpensive soil profile gas collecting device, overcomes the defective of used soil gas harvester, improves the accuracy of test.
The technical solution of the utility model is achieved in that this soil profile gas collecting device; it is characterized in that: collector is made of the gas collecting pipe that is provided with in protective casing and the sleeve pipe; the uniform air admission hole of protective casing bottom tube wall; collection tube top is provided with valve, and the collection tube bottom extends in the sleeve pipe air admission hole correspondence position air storing cavity.
Described soil profile gas collecting device, described gas collecting device sleeve pipe are pegged graft by two sections straight tubes and are constituted the uniform air admission hole of straight tube tube wall of below.
Described soil profile gas collecting device is provided with the plug of fixed gas collection tube in the described collector sleeve pipe.
Described soil profile gas collecting device, described collector sleeve pipe top is provided with dust cap.
The utility model is buried the gas collection method of probe underground and is compared with the existing section that digs, and the technical progress effect shows:
1, can reduce destruction and the interference that in the soil gas gatherer process soil is caused, further eliminate test error, improve test accuracy and precision;
2, can be arranged to the different soil degree of depth according to testing requirements, gather different depth soil layer gas, so that measure its gas concentration, thereby verify soil profile different depth distribution of gas feature, the concentration gradient and the rate of diffusion of estimation soil profile different depth gas.；
3, higher when research soil moisture content, or temporarily be in state of saturation, still available this device is gathered soil gas;
4, simple in structure, cheap, time saving and energy saving, suitable multiple spot is observed simultaneously.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model collector
Among the figure: 1, valve 2, dust cap 3, sleeve pipe 4, gas collecting pipe 5, plug 6, sleeve pipe 7, air admission hole
Embodiment
The gas collecting device structure example that the utility model shown in Figure 1 provides; the design of its major technique is that gas collecting pipe 4 is placed among the protective casing 3,6; be provided with air admission hole 7 in the bottom of sleeve pipe 6 and form an air storing cavity, gas collecting pipe top is provided with valve 1 with isolated atmosphere and section deep soil gas exchange.The concrete method of sampling is:
1, in the experimental plot of choosing, make a call to a hole that is slightly larger than soil profile gas collecting device casing diameter with earth boring auger, the dark slightly 2-3cm of depth measurement degree is desired in the depth ratio test;
2, collector is vertically placed in the hole, make sleeve pipe 6 be positioned at sampling depth, spread a small amount of coarse sand of people along collector outer wall and soil profile slit then, the sand amount is advisable with the slit of just filling up between air storing cavity and soil;
3, the original soil that takes out with becomes mud, backfill makes collector casing wall and surrounding soil close proximity, thereby avoids in sampling thief outside and the surrounding soil slit gaseous diffusion in the sampling thief air storing cavity;
4, after instrument installed, with the impermeability syringe extracting gases of 60ml, collector was exposed at the openend on the face of land by valve 1 control, and the gas of collection is deposited people's Dewar bottle or good seal syringe, directly takes back the laboratory and analyzes with gas chromatograph.
Foregoing description only proposes as a kind of enforceable technical scheme of the utility model soil profile gas collecting device, not as the single restrictive condition to its structure itself.
Claims (4)
1, a kind of soil profile gas collecting device; it is characterized in that: collector is made of the gas collecting pipe (4) that is provided with in protective casing (3) and the sleeve pipe; the uniform air admission hole of protective casing bottom tube wall (7); collection tube top is provided with valve (1), and the collection tube bottom extends in the sleeve pipe air admission hole correspondence position air storing cavity.
2, soil profile gas collecting device according to claim 1 is characterized in that: described gas collecting device sleeve pipe is pegged graft by two sections straight tubes (3,6) and is constituted the uniform air admission hole of the straight tube of below (6) tube wall (7).
3, soil profile gas collecting device according to claim 1 is characterized in that: the plug (5) that is provided with the fixed gas collection tube in the described collector sleeve pipe.
4, soil profile gas collecting device according to claim 1 is characterized in that: described collector sleeve pipe top is provided with dust cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201005192U CN201004028Y (en) | 2007-02-02 | 2007-02-02 | A soil section air collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201005192U CN201004028Y (en) | 2007-02-02 | 2007-02-02 | A soil section air collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201004028Y true CN201004028Y (en) | 2008-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201005192U Expired - Fee Related CN201004028Y (en) | 2007-02-02 | 2007-02-02 | A soil section air collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN201004028Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288457A (en) * | 2011-05-11 | 2011-12-21 | 北京市环境保护科学研究院 | Portable system for collecting volatile gas in soil and collecting method thereof |
| CN102565304A (en) * | 2011-12-30 | 2012-07-11 | 张振华 | Dynamic in-situ monitoring system and measuring method for soil profile moisture |
| CN102607901A (en) * | 2012-03-28 | 2012-07-25 | 湖南农业大学 | Amphibious soil profile gas in-situ collecting device |
| CN102680286A (en) * | 2011-03-14 | 2012-09-19 | 中国科学院寒区旱区环境与工程研究所 | Air cylinder type soil profile gas collector |
| CN102879231A (en) * | 2012-09-04 | 2013-01-16 | 中国科学院东北地理与农业生态研究所 | Greenhouse gas collection device for soil at different depths, and in-situ observation method |
| CN103383318A (en) * | 2013-07-01 | 2013-11-06 | 淮南矿业(集团)有限责任公司 | Device used for collecting carbon dioxide from soil |
| CN103760068A (en) * | 2014-01-15 | 2014-04-30 | 中国科学院遗传与发育生物学研究所 | Method and device for determining diffusion and reduction processes of nitrous oxide in soil |
| CN105571910A (en) * | 2015-12-11 | 2016-05-11 | 中国科学院东北地理与农业生态研究所 | Device for collecting greenhouse gas of wetland soil in freezing-thawing period and method for collecting gas by virtue of device |
| CN105784861A (en) * | 2016-03-04 | 2016-07-20 | 湖南农业大学 | Soil gas collecting device and gas collecting method |
| CN105865859A (en) * | 2016-05-29 | 2016-08-17 | 中国科学院寒区旱区环境与工程研究所 | Gas sampling device applicable to soil at different depths in perennially frozen soil zone |
| 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 |
| CN107063775A (en) * | 2017-03-06 | 2017-08-18 | 华南理工大学 | A kind of simple type deep soil gas sampler and its method for sampling |
-
2007
- 2007-02-02 CN CNU2007201005192U patent/CN201004028Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680286B (en) * | 2011-03-14 | 2014-04-30 | 中国科学院寒区旱区环境与工程研究所 | Air cylinder type soil profile gas collector |
| CN102680286A (en) * | 2011-03-14 | 2012-09-19 | 中国科学院寒区旱区环境与工程研究所 | Air cylinder type soil profile gas collector |
| CN102288457A (en) * | 2011-05-11 | 2011-12-21 | 北京市环境保护科学研究院 | Portable system for collecting volatile gas in soil and collecting method thereof |
| CN102288457B (en) * | 2011-05-11 | 2013-04-10 | 北京市环境保护科学研究院 | Portable system for collecting volatile gas in soil and collecting method thereof |
| CN102565304A (en) * | 2011-12-30 | 2012-07-11 | 张振华 | Dynamic in-situ monitoring system and measuring method for soil profile moisture |
| CN102565304B (en) * | 2011-12-30 | 2014-10-08 | 鲁东大学 | Dynamic in-situ monitoring system and measuring method for soil profile moisture |
| CN102607901A (en) * | 2012-03-28 | 2012-07-25 | 湖南农业大学 | Amphibious soil profile gas in-situ collecting device |
| CN102879231A (en) * | 2012-09-04 | 2013-01-16 | 中国科学院东北地理与农业生态研究所 | Greenhouse gas collection device for soil at different depths, and in-situ observation method |
| CN102879231B (en) * | 2012-09-04 | 2014-10-29 | 中国科学院东北地理与农业生态研究所 | Greenhouse gas collection device for soil at different depths, and in-situ observation method |
| CN103383318A (en) * | 2013-07-01 | 2013-11-06 | 淮南矿业(集团)有限责任公司 | Device used for collecting carbon dioxide from soil |
| CN103383318B (en) * | 2013-07-01 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Carbon dioxide harvester in soil |
| CN103760068A (en) * | 2014-01-15 | 2014-04-30 | 中国科学院遗传与发育生物学研究所 | Method and device for determining diffusion and reduction processes of nitrous oxide in soil |
| CN103760068B (en) * | 2014-01-15 | 2015-12-02 | 中国科学院遗传与发育生物学研究所 | Measure nitrous oxide to spread in soil and the method for reduction process and device |
| CN105571910A (en) * | 2015-12-11 | 2016-05-11 | 中国科学院东北地理与农业生态研究所 | Device for collecting greenhouse gas of wetland soil in freezing-thawing period and method for collecting gas by virtue of device |
| CN105784861A (en) * | 2016-03-04 | 2016-07-20 | 湖南农业大学 | Soil gas collecting device and gas collecting method |
| CN105784861B (en) * | 2016-03-04 | 2017-12-26 | 湖南农业大学 | A kind of soil gas collection device and gas collection method |
| CN105865859A (en) * | 2016-05-29 | 2016-08-17 | 中国科学院寒区旱区环境与工程研究所 | Gas sampling device applicable to soil at different depths in perennially frozen soil zone |
| 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 |
| CN107063775A (en) * | 2017-03-06 | 2017-08-18 | 华南理工大学 | A kind of simple type deep soil gas sampler and its method for sampling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20140202 |