CN209542214U - A kind of underground gas collecting device - Google Patents
A kind of underground gas collecting device Download PDFInfo
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- CN209542214U CN209542214U CN201821810591.9U CN201821810591U CN209542214U CN 209542214 U CN209542214 U CN 209542214U CN 201821810591 U CN201821810591 U CN 201821810591U CN 209542214 U CN209542214 U CN 209542214U
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- collecting chamber
- air collecting
- piston
- probe tube
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Abstract
A kind of underground gas collecting device, belongs to soil environment detection technique field.Described device includes air collecting chamber, handle a, handle a, top cover, piston a, first probe tube, bottom cover, check valve a, aspiration pump and sampling bag, the top cover is set at the top of air collecting chamber, the bottom cover is set to air collecting chamber bottom, the handle a passes through top cover and is set to inside air collecting chamber, the piston a is set to the bottom handle a, the inside of air collecting chamber, the outer diameter of the piston a is corresponding with the internal diameter of air collecting chamber, the handle a is set at the top of handle a, the outside of air collecting chamber, first probe tube is set at the top of top cover, one end passes through top cover and air collecting chamber interior thereof, the other end is flexibly connected with pumping pump steam inlet, sampling bag is connect with aspiration pump gas outlet, first probe tube and top cover joint are equipped with check valve a.Device described in the utility model has many advantages, such as can to position, sampling at set depth, realizes that simple to soil long term monitoring, the structure of fixed position and accuracy is high.
Description
Technical field
The utility model belongs to soil environment detection technique field, and in particular to a kind of underground gas collecting device.
Background technique
Content is small in the soil for volatile organic matter (VOCs), and soil gas is volatile, and edaphon is to volatility
Organic matter degradation will affect CO in soil gas2、O2Content, it is a kind of fast for acquiring soil gas and measuring volatile organic matter
Speed determines that investigated place whether there is the investigation method of pollution risk.Therefore, Volatile Organic Compounds in Soil content monitored
Journey needs more effective soil gas acquisition device.
The method of existing acquisition monitoring is to dig soil from the ground to collect in plastic packaging bag, then analyzed and examined with analyzer
It surveys, the actual conditions where the pedotheque of acquisition monitoring in this way cannot represent initial soil in soil body position, there are biggish
Error.So using positioning heeling-in sampling apparatus come be layered acquisition monitoring soil gas it is more above-mentioned method it is simple and effective, still
Positioning heeling-in sampling apparatus is generally disposable acquisition device at present, cannot acquire pedotheque whenever and wherever possible, can not achieve
The acquisition monitoring long-term to the soil of fixed position, and this apparatus structure is all complex, and can incite somebody to action in sampling
Gas brings soil into atmosphere, brings larger impact to measurement result.In addition, cannot be positioned to the detection of soil gas, depthkeeping
Sampling.Other soil gas acquisition devices have price high again, and design is complicated, cumbersome, the not high disadvantage of accuracy.
Utility model content
The technical issues of solution: in view of the above technical problems, the utility model provides a kind of underground gas collecting dress
Set, have can position, sampling at set depth, realize that simple to soil long term monitoring, the structure of fixed position and accuracy is high etc.
Advantage.
Technical solution: a kind of underground gas collecting device, described device include air collecting chamber, handle a, handle a, top
Lid, piston a, the first probe tube, bottom cover, check valve a, aspiration pump and sampling bag, the top cover are movably arranged at the top of air collecting chamber, institute
It states bottom cover and is movably arranged at air collecting chamber bottom, the handle a passes through top cover and is set to inside air collecting chamber, and the piston a is set to the bottom handle a
Portion, air collecting chamber inside, the outer diameter of the piston a is corresponding with the internal diameter of air collecting chamber, the handle a be set to handle a at the top of, gas collection
The outside of chamber, first probe tube are set at the top of top cover, and one end passes through top cover and air collecting chamber interior thereof, the other end and pumping
Pump steam inlet is flexibly connected, and the sampling bag is connect with aspiration pump gas outlet, and first probe tube is equipped with top cover joint
Check valve a.
Preferably, described device includes at least two air collecting chambers, the air collecting chamber top and a upper air collecting chamber bottom end
It is flexibly connected, the top cover is movably arranged at the top of first air collecting chamber, and the bottom cover is movably arranged at the last one air collecting chamber bottom.
Preferably, described device further includes handle b, handle b, piston b, the second probe tube and check valve b, the handle
B is inside handle a and passes through piston a inside air collecting chamber, and the handle b is set to the top at the top handle b, handle a,
The piston b is set to the inside of the bottom handle b, air collecting chamber, and the outer diameter of the piston b is corresponding with the internal diameter of air collecting chamber, and described the
Two probe tubes are set to the side handle a, and second probe tube top passes through top cover, and bottom end passes through piston a set on piston b's
Top, the check valve b are set to the top of the second probe tube, and the pumping pump steam inlet and the second probe tube top activity connect
It connects.
Preferably, the air collecting chamber cavity wall is equipped with gas collection hole, the gas collection hole is greater than in the aperture of gas collection cavity outer wall
In the aperture of gas collection cavity wall.
Preferably, gas collection cavity wall is equipped with gauze.
Preferably, the bottom cover be it is coniform, cone bottom downward.
Preferably, the handle a and handle b handle, which are done, is respectively equipped with scale.
The utility model has the advantages that 1. present apparatus pass through setting piston a, piston b, the first probe tube and the second probe tube, it can be simultaneously
Gas between the gas and piston a and piston b on the top air collecting chamber inner piston a is acquired, accomplishes that in situ, fixed point is adopted
Sample can be realized the acquisition monitoring long-term to soil.
2. the present apparatus can prevent gas in atmosphere to be mixed into sampling bag, shadow by the way that check valve is arranged in probe tube gas outlet
Ring sampling result.
3. the present apparatus in air collecting chamber cavity wall by being arranged gas collection hole, and gas collection hole is greater than in the aperture of gas collection cavity outer wall
In the aperture of gas collection cavity wall, gauze is set on gas collection cavity wall, soil can be effectively prevent to enter air collecting chamber from gas collection hole,
Influence the speed and accuracy of gas collecting.
4. the present apparatus can be realized by being respectively equipped with scale on the handle of handle a and handle b are dry to piston a and piston b
Accurate positioning in air collecting chamber.
5. the present apparatus includes at least two air collecting chambers, the air collecting chamber top and a upper air collecting chamber bottom end are flexibly connected,
The top cover is movably arranged at the top of first air collecting chamber, and the bottom cover is movably arranged at the last one air collecting chamber bottom, by adding
A piece gas collecting tube acquires the gas of depth in soil.
Detailed description of the invention
Fig. 1 is underground gas collecting device structural schematic diagram described in embodiment 1;
Fig. 2 is underground gas collecting device structural schematic diagram described in embodiment 2.
Each number designation represents as follows in figure: 1. air collecting chambers；2. handle b；3. handle b；4. handle a；5. handle a；6. top
Lid；7. piston a；8. piston b；9. the second probe tube；10. the first probe tube；11. bottom cover；12. check valve a；13. aspiration pump；
14. sampling bag；15. check valve b；16. gas collection hole.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of underground gas collecting device, referring to Fig.1, described device include air collecting chamber 1, handle a 4, handle a 5,
Top cover 6, piston a 7, the first probe tube 10, bottom cover 11, check valve a 12, aspiration pump 13 and sampling bag 14,6 activity of top cover
Set on 1 top of air collecting chamber, the bottom cover 11 is movably arranged at 1 bottom of air collecting chamber, and the handle a 5 passes through top cover 6 and is set to air collecting chamber 1
Inside, the piston a 7 are set to the inside of 5 bottom handle a, air collecting chamber 1, and the outer diameter of the piston a 7 is interior with air collecting chamber 1
Diameter is corresponding, and the handle a 4 is set to the outside at 5 top handle a, air collecting chamber 1, and first probe tube 10 is pushed up set on top cover 6
Portion, one end pass through top cover 6 and 1 interior thereof of air collecting chamber, and the other end is flexibly connected with 13 air inlet of aspiration pump, the sampling bag 14
It is connect with 13 gas outlet of aspiration pump, first probe tube 10 is equipped with check valve a 12 with 6 joint of top cover.The air collecting chamber 1
Cavity wall is equipped with gas collection hole 16, and the gas collection hole 16 is greater than in the aperture of 1 outer wall of air collecting chamber in the aperture of 1 inner wall of air collecting chamber.Collection
1 inner wall of air cavity is equipped with gauze.The bottom cover 11 be it is coniform, cone bottom downward.5 handle of handle a is dry to be equipped with scale.
The underground gas collecting device principle is as follows: so that piston a 7 is close to top cover 6, then buries acquisition device
It in ground end, flushes top cover with ground, acquisition device is embedded in soil using bottom cover, passes through the quarter on handle a 4 and handle a 5
Position of the regulating piston a 7 in air collecting chamber is spent, underground gas enters collection by gas collection hole and by the filtering of gauze layer
Air cavity 1, the gas on 7 top piston a is pumped into sampling bag 14 by check valve a 12 under the action of aspiration pump 13, due to unidirectional
The setting of valve a 12 can effectively prevent gas in atmosphere to be mixed into sampling bag 14.
Embodiment 2
With embodiment 1, difference is, referring to fig. 2, described device further includes handle b 2, handle b 3, piston b 8, second
Probe tube 9 and check valve b 15, the handle b 3 are set to 5 inside handle a and pass through piston a 7 and be set to inside air collecting chamber 1,
The handle b 2 is set to the top at the top handle b 3, handle a 4, and the piston b 8 is set to 3 bottom handle b, air collecting chamber 1
The outer diameter of inside, the piston b 8 is corresponding with the internal diameter of air collecting chamber 1, and second probe tube 9 is set to 5 side handle a, and
Second probe tube, 9 top passes through top cover 6, and bottom end passes through the top that piston a 7 is set to piston b 8, the check valve b 15
Set on the top of the second probe tube 9,13 air inlet of aspiration pump is flexibly connected with 9 top of the second probe tube.The handle a 5
It is done with 3 handle of handle b and is respectively equipped with scale.
The underground gas collecting device principle is as follows: so that piston a 7 is close to top cover 6, piston b 8 is close to piston a
7, acquisition device is then embedded in ground end, flushes top cover with ground, acquisition device is embedded in soil using bottom cover, passes through handle
The position of scale regulating piston a 7 and piston b 8 in air collecting chamber on a 4, handle b 2, handle b 3 and handle a 5, underground
Soil gas enters air collecting chamber 1 by gas collection hole and by the filtering of gauze layer.When 13 air inlet of aspiration pump and the first probe tube
10 when connecting, and the gas on 7 top piston a is pumped under the action of aspiration pump 13 by the first probe tube 10 and check valve a 12
Sampling bag 14.When 13 air inlet of aspiration pump connects with the second probe tube, the gas between piston a 7 and piston b 8 is being evacuated
Sampling bag 14 is pumped by the second probe tube 9 and check valve b 15 under the action of pump 13.Due to check valve a 12 and check valve b
15 setting can effectively prevent gas in atmosphere to be mixed into sampling bag 14.
Embodiment 3
With embodiment 2, difference is, described device includes two air collecting chambers, and the air collecting chamber is long 1000 mm, diameter
For the inner hollow steel pipe of 30 mm, the air collecting chamber top and a upper air collecting chamber bottom end are flexibly connected, between two air collecting chambers
Seamless seal connection, the top cover 6 are movably arranged at the top of first air collecting chamber, and the bottom cover 11 is movably arranged at the last one gas collection
1 bottom of chamber.The gas of depth in soil is acquired by adding a gas collecting tube.
Claims (7)
1. a kind of underground gas collecting device, which is characterized in that described device includes air collecting chamber (1), handle a(4), handle
A(5), top cover (6), piston a(7), the first probe tube (10), bottom cover (11), check valve a(12), aspiration pump (13) and sampling bag
(14), the top cover (6) is movably arranged at the top of air collecting chamber (1), and the bottom cover (11) is movably arranged at air collecting chamber (1) bottom, described
Handle a(5) it passes through top cover (6) and is set to that air collecting chamber (1) is internal, the piston a(7) it is set to handle a(5) bottom, air collecting chamber (1)
Inside, the piston a(7) outer diameter it is corresponding with the internal diameter of air collecting chamber (1), the handle a(4) be set to handle a(5) top, collection
The outside of air cavity (1), first probe tube (10) are set at the top of top cover (6), and one end passes through in top cover (6) and air collecting chamber (1)
Portion connects, and the other end is flexibly connected with aspiration pump (13) air inlet, and the sampling bag (14) connect with aspiration pump (13) gas outlet,
First probe tube (10) and top cover (6) joint are equipped with check valve a(12).
2. a kind of underground gas collecting device according to claim 1, which is characterized in that described device includes at least
Two air collecting chambers, the air collecting chamber top and a upper air collecting chamber bottom end are flexibly connected, and the top cover (6) is movably arranged at first
At the top of air collecting chamber (1), the bottom cover (11) is movably arranged at the last one air collecting chamber (1) bottom.
3. a kind of underground gas collecting device according to claim 1 or 2, which is characterized in that described device is also wrapped
Include handle b(2), handle b(3), piston b(8), the second probe tube (9) and check valve b(15), the handle b(3) be set to handle a
(5) internal and pass through piston a(7) be set to air collecting chamber (1) it is internal, the handle b(2) be set to handle b(3) top, handle a
(4) top, the piston b(8) be set to handle b(3) bottom, air collecting chamber (1) inside, the piston b(8) outer diameter and collection
The internal diameter of air cavity (1) is corresponding, and second probe tube (9) is set to handle a(5) side, and second probe tube (9) top
Across top cover (6), bottom end passes through piston a(7) set on the top of piston b(8), the check valve b(15) it is set to the second probe tube
(9) top, aspiration pump (13) air inlet are flexibly connected with the second probe tube (9) top.
4. a kind of underground gas collecting device according to claim 1 or 2, which is characterized in that the air collecting chamber (1)
Cavity wall is equipped with gas collection hole (16), and the gas collection hole (16) is greater than in the aperture of air collecting chamber (1) outer wall in air collecting chamber (1) inner wall
Aperture.
5. a kind of underground gas collecting device according to claim 1 or 2, which is characterized in that air collecting chamber (1) inner wall
Equipped with gauze.
6. a kind of underground gas collecting device according to claim 1 or 2, which is characterized in that the bottom cover (11)
Be it is coniform, cone bottom downward.
7. a kind of underground gas collecting device according to claim 3, which is characterized in that the handle a(5) and hand
Handle b(3) scale is respectively equipped on handle is dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821810591.9U CN209542214U (en) | 2018-11-05 | 2018-11-05 | A kind of underground gas collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821810591.9U CN209542214U (en) | 2018-11-05 | 2018-11-05 | A kind of underground gas collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209542214U true CN209542214U (en) | 2019-10-25 |
Family
ID=68247797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821810591.9U Active CN209542214U (en) | 2018-11-05 | 2018-11-05 | A kind of underground gas collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209542214U (en) |
-
2018
- 2018-11-05 CN CN201821810591.9U patent/CN209542214U/en active Active
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