CN104330287A - Anti-pollution soil gas sampling device - Google Patents

Anti-pollution soil gas sampling device Download PDF

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Publication number
CN104330287A
CN104330287A CN201410607680.3A CN201410607680A CN104330287A CN 104330287 A CN104330287 A CN 104330287A CN 201410607680 A CN201410607680 A CN 201410607680A CN 104330287 A CN104330287 A CN 104330287A
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CN
China
Prior art keywords
tank
drilling rod
soil gas
gas
pollution soil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410607680.3A
Other languages
Chinese (zh)
Inventor
刘达文
钱岑
凌云
王秋艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANJING BAIYUN CHEMICAL ENVIRONMENTAL MONITORING CO Ltd
Original Assignee
NANJING BAIYUN CHEMICAL ENVIRONMENTAL MONITORING CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NANJING BAIYUN CHEMICAL ENVIRONMENTAL MONITORING CO Ltd filed Critical NANJING BAIYUN CHEMICAL ENVIRONMENTAL MONITORING CO Ltd
Priority to CN201410607680.3A priority Critical patent/CN104330287A/en
Publication of CN104330287A publication Critical patent/CN104330287A/en
Pending legal-status Critical Current

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Abstract

The invention provides an anti-pollution soil gas sampling device, comprising a drill stem, wherein an axial communicating hole is formed in the middle of the drill stem. The anti-pollution soil gas sampling device is characterized in that a group of capillary pores which are connected with the axial communicating hole are formed in the tip part of the drill stem; a hose connected with the communicating hole is arranged at the tail end of the drill stem, and is connected with the upper part of a transfer tank; a free piston is arranged in the middle of the middle tank; the upper part of the middle tank is also respectively connected with an exhaust pipe and a sampling bag through pipelines; and the lower part of the middle tank is connected with an air pump. According to the anti-pollution soil gas sampling device, pollution to adopted soil gas caused by entrained air can be avoided in the sampling process.

Description

Anti-pollution soil gas sampler
technical field:
The present invention relates to a kind of environmental monitoring utility appliance, be specifically related to a kind of anti-pollution soil gas sampler.
background technology:
At present, CO in soil 2research become the focus of global carbon research.Gathering soil gas sample is exactly research soil CO 2prerequisite.Forefathers, and the method for location heeling-in sampling bottle that adopts collects soil gas, but the shortcoming of the method wants spoiled soil prototype structure and can not gather soil gas whenever and wherever possible.The basic demand of sampling apparatus, in order to truly, exactly gather gas in soil, necessarily requires during sampling: the primary structure of not spoiled soil during (l) sample, in order to avoid being mixed into of other gas; (2) gas in different depth soil can be gathered whenever and wherever possible; (3) light, the easy transport of sampling apparatus, easy to operate.Soil gas sampler relatively more conventional at present generally adopts drilling rod to connect guiding tube, first uses drilling rod to make a call to a thief hole, then guide wire is put into thief hole in the process of use.Guide wire can be squeezed in the middle of soil with hammer, is finally connected on guide wire interface by plastic tube.This sampler due to the problem of the connection of guiding tube and drilling rod, is inevitably mixed into partial air, affects the accuracy of monitoring result in the process of sampling.
summary of the invention:
The object of the invention is to provide a kind of anti-pollution soil gas sampler for above-mentioned Problems existing, can avoid being mixed into air in the process of sampling the soil gas taked is polluted.
Above-mentioned object is realized by following technical scheme:
Anti-pollution soil gas sampler, comprise drilling rod, in the middle of described drilling rod, there is axial pass-through holes, the point of described drilling rod has one group of pore be connected with described axial pass-through holes, the tail end of described drilling rod has the flexible pipe be connected with described through hole, and described flexible pipe connects transfer tank top, is provided with free-piston in the middle of described intermediate tank, described intermediate tank top is also connected with gas outlet and sampling bag respectively by pipeline, and the bottom of described intermediate tank connects air pump.
Described anti-pollution soil gas sampler, the pipeline be connected is respectively arranged with ball valve and unidirectional air outlet valve, described flexible pipe is also provided with ball valve and retaining valve with described gas outlet and described sampling bag.
Described anti-pollution soil gas sampler, described drilling rod top is provided with handle.
Beneficial effect:
1. the present invention is provided with independent gas outlet by surge tank, when drilling rod pierces after in soil, the gas in soil is slowly collected by operation air pump, early stage, the gas collected was due to containing the air in drilling rod, and first open ball valve on gas outlet by its emptying, the ball valve of then closing on gas outlet continues collection gas, gas is not at this time by air pollution, purity is high, and do not have the chance with extraneous contact again in whole device, the soil gas monitoring result of collection is more accurate.
2. the pipeline that of the present invention with described gas outlet and described sampling bag are connected is respectively arranged with ball valve and unidirectional air outlet valve, further avoid being mixed into of outside air.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
In figure: 1, drilling rod, 2, axial pass-through holes, 3, pore, 4, flexible pipe, 5, transfer tank, 6, free-piston, 7, gas outlet, 8, sampling bag, 9, air pump, 10, ball valve; 11, unidirectional air outlet valve; 12, breather cheek valve; 13, handle.
embodiment:
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.Following embodiment should be understood only be not used in for illustration of the present invention and limit the scope of the invention.
Embodiment 1:
As shown in Figure 1: the anti-pollution soil gas sampler of the present embodiment, comprise drilling rod 1, in the middle of described drilling rod, there is axial pass-through holes 2, the point of described drilling rod has one group of pore 3 be connected with described axial pass-through holes, the tail end of described drilling rod has the flexible pipe 4 be connected with described through hole, described flexible pipe connects transfer tank 5 top, free-piston 6 is provided with in the middle of described intermediate tank, described intermediate tank top is also connected with gas outlet 7 and sampling bag 8 respectively by pipeline, and the bottom of described intermediate tank connects air pump 9.
Anti-pollution soil gas sampler described in the present embodiment, the pipeline be connected is respectively arranged with ball valve 10 and unidirectional air outlet valve 11 with described gas outlet and described sampling bag, described flexible pipe is provided with ball valve and breather cheek valve 12.
Anti-pollution soil gas sampler described in the present embodiment, described drilling rod top is provided with handle 13.
The course of work of the anti-pollution soil gas sampler of the present embodiment is: first drilling rod is extend into the inside will monitoring soil, booster air pump is bled, free-piston in intermediate tank will move down, residual air in the drilling rod gas be communicated with in soil enters the top of intermediate tank together, when the gas of suction is greater than more than 2 times of drilling rod internal run-through pore capacities, the air of drilling rod inside, surface is washed, certainly more gas can be extracted out in order to degree of accuracy is higher, then gas outlet emptying is passed through, at this time restart slowly to extract soil gas, gas after extraction is sent in sampling bag, whole process does not have the chance with extraneous contact again, the soil gas monitoring result of collecting is more accurate.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises and is equal to by above technical characteristic the technical scheme that replacement forms.Unaccomplished matter of the present invention, belongs to the common practise of those skilled in the art.

Claims (3)

1. an anti-pollution soil gas sampler, comprise drilling rod, in the middle of described drilling rod, there is axial pass-through holes, it is characterized in that: the point of described drilling rod has one group of pore be connected with described axial pass-through holes, the tail end of described drilling rod has the flexible pipe be connected with described through hole, described flexible pipe connects transfer tank top, free-piston is provided with in the middle of described intermediate tank, described intermediate tank top is also connected with gas outlet and sampling bag respectively by pipeline, and the bottom of described intermediate tank connects air pump.
2. anti-pollution soil gas sampler according to claim 1, is characterized in that: the pipeline be connected with described gas outlet and described sampling bag is respectively arranged with ball valve and unidirectional air outlet valve, described flexible pipe is also provided with ball valve and retaining valve.
3. anti-pollution soil gas sampler according to claim 1 and 2, is characterized in that: described drilling rod top is provided with handle.
CN201410607680.3A 2014-11-03 2014-11-03 Anti-pollution soil gas sampling device Pending CN104330287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410607680.3A CN104330287A (en) 2014-11-03 2014-11-03 Anti-pollution soil gas sampling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410607680.3A CN104330287A (en) 2014-11-03 2014-11-03 Anti-pollution soil gas sampling device

Publications (1)

Publication Number Publication Date
CN104330287A true CN104330287A (en) 2015-02-04

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Country Status (1)

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CN (1) CN104330287A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545217A (en) * 2015-12-08 2016-05-04 四川大学 Prismatic pneumatic fracturing soil loosening device
CN105699136A (en) * 2016-01-28 2016-06-22 东南大学 Unsaturated zone gas multi-point instant and synchronous sampling device for polluted soil column test
CN110017138A (en) * 2019-05-08 2019-07-16 中国科学院武汉岩土力学研究所 Air water multilayer sampling method and device in a kind of drilling

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09218141A (en) * 1996-02-08 1997-08-19 Mitsubishi Heavy Ind Ltd Sampling device for micro component gas from dust contained high-temperature and high-pressure gas
DE19610402B4 (en) * 1995-08-08 2005-03-17 Kaisergeoconsult Gmbh Soil gas collection system
CN1987421A (en) * 2006-12-27 2007-06-27 北京林业大学 Method and device for in-site detecting soil carbon dioxide flux
CN201340354Y (en) * 2008-12-29 2009-11-04 中国科学院寒区旱区环境与工程研究所 Collecting device for measuring carbon dioxide released from soil
CN202284991U (en) * 2011-09-21 2012-06-27 清华大学 Soil gas sampling device for oil pollution detection of aeration zone soil
CN103424288A (en) * 2013-07-31 2013-12-04 南京白云化工环境监测有限公司 Flue sampling device for corrosive gas
CN103698167A (en) * 2014-01-04 2014-04-02 上海市环境科学研究院 Portable controllable automatic soil gas quantitative sampling device
CN204165803U (en) * 2014-11-03 2015-02-18 南京白云化工环境监测有限公司 Anti-pollution soil gas sampler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610402B4 (en) * 1995-08-08 2005-03-17 Kaisergeoconsult Gmbh Soil gas collection system
JPH09218141A (en) * 1996-02-08 1997-08-19 Mitsubishi Heavy Ind Ltd Sampling device for micro component gas from dust contained high-temperature and high-pressure gas
CN1987421A (en) * 2006-12-27 2007-06-27 北京林业大学 Method and device for in-site detecting soil carbon dioxide flux
CN201340354Y (en) * 2008-12-29 2009-11-04 中国科学院寒区旱区环境与工程研究所 Collecting device for measuring carbon dioxide released from soil
CN202284991U (en) * 2011-09-21 2012-06-27 清华大学 Soil gas sampling device for oil pollution detection of aeration zone soil
CN103424288A (en) * 2013-07-31 2013-12-04 南京白云化工环境监测有限公司 Flue sampling device for corrosive gas
CN103698167A (en) * 2014-01-04 2014-04-02 上海市环境科学研究院 Portable controllable automatic soil gas quantitative sampling device
CN204165803U (en) * 2014-11-03 2015-02-18 南京白云化工环境监测有限公司 Anti-pollution soil gas sampler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545217A (en) * 2015-12-08 2016-05-04 四川大学 Prismatic pneumatic fracturing soil loosening device
CN105699136A (en) * 2016-01-28 2016-06-22 东南大学 Unsaturated zone gas multi-point instant and synchronous sampling device for polluted soil column test
CN105699136B (en) * 2016-01-28 2018-07-17 东南大学 Pollute soil-column test unsaturation band gas multi-point transient synchronized sampling unit
CN110017138A (en) * 2019-05-08 2019-07-16 中国科学院武汉岩土力学研究所 Air water multilayer sampling method and device in a kind of drilling

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Application publication date: 20150204