CN205691386U - A kind of soil gas harvester - Google Patents
A kind of soil gas harvester Download PDFInfo
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- CN205691386U CN205691386U CN201620445007.9U CN201620445007U CN205691386U CN 205691386 U CN205691386 U CN 205691386U CN 201620445007 U CN201620445007 U CN 201620445007U CN 205691386 U CN205691386 U CN 205691386U
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- air pump
- gas outlet
- harvester
- air inlet
- gas
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Abstract
The utility model discloses a kind of soil gas harvester, including shut-in well unit and gas collection module, described collection and confinement of gases module is provided with air pump case (27), four-way connection (16) and sampling airbag (20)；It is provided with air pump A (22), air pump B (23) in described air pump case and there is air inlet A (7), air inlet B (8), gas outlet A (13) and gas outlet B (14)；Described four-way connection has the gas outlet D (25) that gas outlet C (17) and the described air inlet B of air inlet C (24) and the atmosphere connected with described gas outlet A connects and the gas outlet E (26) connected with described sampling airbag；The entrance of described air pump A is in fluid communication with described air inlet A, and the outlet of described air pump A is in fluid communication with described gas outlet A；The entrance of described air pump B is in fluid communication with described air inlet B；The outlet of described air pump B is via described gas outlet B and atmosphere.
Description
Technical field
This utility model relates to soil collecting technical field, is specifically related to a kind of soil gas harvester.
Background technology
Along with the continuous quickening of Urbanization in China, industrial undertaking's resettlement quantity grows with each passing day, and carries over big therewith
There is the place of Potential environmental risk in amount, this has caused the extensive concern of government and various circles of society.In all kinds of soil pollutions
In thing, volatile organic matter (VOCs) owing to its pollutant kind is many, harm is big, high volatility, easily nearby residents is produced straight
Connect impact, cause great attention both domestic and external.For protection human health and ecological environment, leave over after industrial undertaking moves
When place changes land use morphology, it is necessary to it is carried out space enrironment investigation and the work of follow-up repairing and treating.Gather soil
Gas to measure volatile organic matter be the investigation method whether a kind of investigated place of quick judgement exists pollution risk.
At present, conventional soil gas acquisition method has closed chamber method and heeling-in sampling bottle method.Described closed chamber method is handle
" chest " of known floor space and volume covers on region to be measured, and measures institute's learning gas in a case at set intervals
Concentration, calculate quilt cover surface minimum gas emission index according to concentration rate over time.The obvious shortcoming of closed chamber method
Be destroy measured surface upper air natural turbulence state, cannot directly obtain really and accurately soil gap gas and
Such device volume is relatively big, not readily portable and operation；Described heeling-in sampling bottle method collects soil gas, exists and both destroys soil
Prototype structure, can not measure and gather again the defect of soil gas whenever and wherever possible.
There is the problem that disturbance original state soil layer, closure are poor in current soil gas acquisition method.
Utility model content
This utility model provides a kind of soil gas harvester, this device it can be avoided that original state soil layer is produced disturbance,
And closure is preferable, it is to avoid being mixed into of other gases；Further, can measure and gather the gas in interstices of soil at any time, it is simple to
Long term monitoring.
To achieve these goals, this utility model provides a kind of soil gas harvester, including for inserting soil
In shut-in well unit and the collection and confinement of gases module that connects of the gas outlet with this shut-in well unit, it is characterised in that described collection and confinement of gases
Module is provided with air pump case, four-way connection and sampling airbag；It is provided with air pump A, air pump B in described air pump case and there is air inlet
A, air inlet B, gas outlet A and gas outlet B；Described four-way connection has the air inlet C and air connected with described gas outlet A
The gas outlet D that connects with described air inlet B of gas outlet C of connection and the gas outlet E connected with described sampling airbag；Described gas
The entrance of pump A is in fluid communication with described air inlet A, and the outlet of described air pump A is in fluid communication with described gas outlet A；Described air pump B
Entrance and described air inlet B be in fluid communication；The outlet of described air pump B is via described gas outlet B and atmosphere.
Preferably, controller it is provided with in described air pump case to regulate the rotating speed of described air pump A.
Preferably, it is provided with effusion meter between described air pump A and described air inlet A.
Preferably, described gas outlet C is provided with ball valve A.
Preferably, it is provided with ball valve B between the described gas outlet E of described four-way connection and described sampling airbag.
Preferably, described harvester also includes inserting the extraction catheter in described shut-in well unit, this extraction catheter and institute
State air inlet A fluid communication, between described air inlet A and described extraction catheter, be provided with the check valve controlling gas circulating direction.
Preferably, described shut-in well unit is followed successively by quartz sand, bentonite and cement mortar from the bottom to top.
Preferably, described shut-in well unit also sets up the quartz sand Bubbled stone wrapped up by described quartz sand, described extraction catheter
Lower end stretch to described quartz sand Bubbled stone, the vertical packed height of described quartz sand be higher than described quartz sand Bubbled stone 5 lis
More than meter.
Preferably, described air pump case is provided with the switch A controlling described air pump A and the switch B controlling described air pump B.
Preferably, the material of described extraction catheter is non-absorbent material.
By the technical solution of the utility model, by four-way connection and the control of two air pumps, can quickly have
Effect ground realizes the collection and confinement of gases from soil.Soil gas harvester closure the most of the present utility model is good, collects
Gas in all soil of gas, will not introduce gas more than ground；Having only to early stage once construct, shut-in well unit is stable
After completing, in follow-up each soil gas gatherer process, original state soil layer will not be produced disturbance；Gas collecting device sets
Count ingenious, quick for installation, convenient and practical, it is easy to operation, with low cost, it is suitable for the large area soil in volatility organic contamination place
Gas generaI investigation and monitoring.
Other feature and advantage of the present utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, with following
Detailed description of the invention be used for explaining this utility model together, but be not intended that restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of detailed description of the invention of soil gas harvester of the present utility model.
Fig. 2 is that the structure of the air pump case in a kind of detailed description of the invention of soil gas harvester of the present utility model is shown
It is intended to.
Description of reference numerals
1 quartz sand 2 bentonite 3 cement mortar 4 quartz sand Bubbled stone
5 extraction catheter 6 check valve 7 air inlet A 8 air inlet B
9 effusion meter 10 controllers 11 switch A 12 and switch B
13 gas outlet A 14 gas outlet B 15 airway A 16 four-way connections
17 gas outlet C 18 ball valve A 19 ball valve B 20 sample airbag
21 airway B 22 air pump A 23 air pump B 24 air inlet C
25 gas outlet D 26 gas outlet E 27 air pump casees
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that herein
Described detailed description of the invention is merely to illustrate and explains this utility model, is not limited to this utility model.
As it is shown in figure 1, this utility model provides a kind of soil gas harvester, including for inserting the shut-in well in soil
The collection and confinement of gases module that unit and the gas outlet with this shut-in well unit connect, collection and confinement of gases module is provided with air pump case 27, four-way
Joint 16 and sampling airbag 20；It is provided with air pump A22, air pump B23 in air pump case 27 and there is air inlet A7, air inlet B8, go out
QI KOU A13 and gas outlet B14；Four-way connection 16 has giving vent to anger of the air inlet C24 that connects with gas outlet A13 and atmosphere
Gas outlet D25 that mouthful C17 and air inlet B8 connect and the gas outlet E26 connected with airbag 20 of sampling；The entrance of air pump A22 with
Air inlet A7 is in fluid communication, and the outlet of air pump A22 is in fluid communication with gas outlet A13；The entrance of air pump B23 and air inlet B8 fluid
Connection；The outlet of air pump B23 is via gas outlet B14 and atmosphere；The gas outlet D25 and air inlet B8 of four-way connection 16
Connected by airway A15；The gas outlet E26 of four-way connection 16 is connected by airway B21 with sampling airbag 20；Air pump case 27
The cleaning to sampling airbag 20 and filling can be completed.Concrete operations mode will be described in detail below.
As in figure 2 it is shown, air pump case 27 can by arrange controller 10 with regulate air pump A22 rotating speed, and then control into
The flow velocity of gas, prevents from filling quick-fried because flow velocity is too fast by sampling airbag 20 when collecting gas.
As in figure 2 it is shown, the effusion meter 9 gas flow rate to entering air pump A22 can be arranged between air pump A22 and air inlet A7
It is measured and shows.
As it is shown in figure 1, gas outlet C17 can arrange ball valve A18, can control to draw through air pump A22 by arranging ball valve A18
Whether the gas entered discharges through gas outlet C17 after entering four-way connection 16.
As it is shown in figure 1, between the gas outlet E26 of four-way connection 16 and sampling airbag 20, ball valve B19 can be set, and permissible
Being connected freely to dismantle by flexible pipe, can control to flow through in four-way connection 16 and sampling airbag 20 by arranging ball valve B19
Whether gas can be circulated by airway B21.
As it is shown in figure 1, harvester may also include the extraction catheter 5 inserted in shut-in well unit, this extraction catheter 5 and air inlet
Mouth A7 fluid communication, can arrange the check valve 6 controlling gas circulating direction between air inlet A7 and extraction catheter 5, by arranging
Check valve 6 can effectively prevent outside air to be mixed in soil, and then avoids collecting the gas in the soil that gas is not exclusively
Body.
As it is shown in figure 1, in order to ensure the shut-in well sealing of unit, stability and enter air pump case 27 through extraction catheter 5
After the soil gas that is collected be not mixed into other impurity, shut-in well unit can be followed successively by quartz sand 1, bentonite 2 and from the bottom to top
Cement mortar 3.
As it is shown in figure 1, shut-in well unit can also arrange the quartz sand Bubbled stone 4 wrapped up by quartz sand 1, extraction catheter 5
Lower end can stretch to quartz sand Bubbled stone 4, and the vertical packed height of quartz sand 1 can be higher than the place of quartz sand Bubbled stone 4
More than 5 centimetres, position, can be by hose connection between quartz sand Bubbled stone 4 and extraction catheter 5, and soil gas is from quartz sand gas
The hole of afrodite 4 enters air pump case 27 through extraction catheter 5.
When concrete operations, it is possible to use soil hole offered by the instruments such as earth boring auger, and aperture should be greater than the straight of quartz sand Bubbled stone 4
Footpath, quartz sand Bubbled stone 4, according to depending on sampling request, is placed in desired depth by the degree of depth, is then led to by extraction catheter 5
Earth's surface also exceeds 20-30 centimetre of earth's surface, and filled stone sand 1 in wellhole is until quartz sand Bubbled stone 4 is wrapped by quartz sand 1 completely
Enclose, be then sequentially filled bentonite 2 and cement mortar 3 and be compacted, making the borehole wall fully seal.
As in figure 2 it is shown, the switch A11 controlling air pump A22 and the switch controlling air pump B23 can be arranged on air pump case 27
B12, by arranging whether switch A11 and switch B12 can control the operation of air pump A22 and air pump B23 respectively.
When using soil gas harvester of the present utility model, first press switch A11, open ball valve A18 and close
Closing ball valve B19, in extraction soil, gas is discharged through gas outlet C17, and the volume discharging gas should be greater than effective body of extraction catheter 5
Long-pending more than three times, are then shut off air pump case 27.
Closing ball valve A18, open ball valve B19, press switch A11 booster air pump A22, such soil gas is from air inlet A7
Enter air pump A22, after gas outlet A13, air inlet C24 enter four-way connection 16, enter sampling airbag 20；Airbag 20 to be sampled
After gassy, closing switch A11, unlatching switch B12 booster air pump B23, in sampling airbag 20, gas transmits through airway A15
To air inlet B8, under the effect of air pump B23, in sampling airbag 20, gas is arranged, according to above-mentioned after being drawn out of outside the B14 of gas outlet
Operation can complete the cleaning of sampling airbag 20 after repeating 2-3 time.
Press switch A11 booster air pump A22, close ball valve A18, open ball valve B19, start to gather soil gas, adopting
During collection, effusion meter 9 can show gas flow rate, can be controlled the flow velocity of air pump A22 air inlet by controller 10, wait to adopt
After in sample gas bag 20, gas volume reaches sampling request, closing switch A11, closedown ball valve B19 also take off sampling airbag 20, soil
Gaseous sample collection terminates, and the gas in sampling airbag 20 need to deliver to laboratory in one week or associated mechanisms is analyzed inspection
Survey.
As it is shown in figure 1, in order to ensure the accuracy that soil gas is collected, extraction catheter 5, airway A15 and airway
The material selection non-absorbent material of B21, such as, can be polyvinyl fluoride (PVF).
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing, but, this utility model does not limit
Detail in above-mentioned embodiment, in technology concept of the present utility model, can be to skill of the present utility model
Art scheme carries out multiple simple variant, and these simple variant belong to protection domain of the present utility model.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, this utility model is to respectively
Plant possible compound mode to illustrate the most separately.
Additionally, combination in any can also be carried out, as long as it is not disobeyed between various different embodiment of the present utility model
Carrying on the back thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a soil gas harvester, including for inserting the shut-in well unit in soil and the gas outlet with this shut-in well unit
Connection collection and confinement of gases module, it is characterised in that described collection and confinement of gases module be provided with air pump case (27), four-way connection (16) and
Sampling airbag (20)；It is provided with air pump A (22), air pump B (23) in described air pump case (27) and there is air inlet A (7), air inlet
B (8), gas outlet A (13) and gas outlet B (14)；Described four-way connection (16) has the air inlet connected with described gas outlet A (13)
Gas outlet D (25) that mouthful C (24) connects with described air inlet B (8) with the gas outlet C (17) of atmosphere and with described sampling
The gas outlet E (26) that airbag (20) connects；The entrance of described air pump A (22) is in fluid communication with described air inlet A (7), described gas
The outlet of pump A (22) is in fluid communication with described gas outlet A (13)；The entrance of described air pump B (23) flows with described air inlet B (8)
Body connects；The outlet of described air pump B (23) is via described gas outlet B (14) and atmosphere.
Harvester the most according to claim 1, it is characterised in that be provided with controller (10) in described air pump case (27)
To regulate the rotating speed of described air pump A (22).
Harvester the most according to claim 1 and 2, is provided with stream between described air pump A (22) and described air inlet A (7)
Gauge (9).
Harvester the most according to claim 1, it is characterised in that described gas outlet C (17) is provided with ball valve A (18).
Harvester the most according to claim 1, it is characterised in that the described gas outlet E of described four-way connection (16)
And between described sampling airbag (20), be provided with ball valve B (19) (26).
Harvester the most according to claim 1, it is characterised in that described harvester also includes inserting described shut-in well
Extraction catheter (5) in unit, this extraction catheter (5) is in fluid communication with described air inlet A (7), described air inlet A (7) and institute
State and between extraction catheter (5), be provided with the check valve (6) controlling gas circulating direction.
Harvester the most according to claim 6, it is characterised in that described shut-in well unit is followed successively by quartz sand from the bottom to top
(1), bentonite (2) and cement mortar (3).
Harvester the most according to claim 7, it is characterised in that described shut-in well unit also sets up by described quartz sand
(1) the quartz sand Bubbled stone (4) wrapped up, the lower end of described extraction catheter (5) stretches to described quartz sand Bubbled stone (4), described
The vertical packed height of quartz sand (1) is higher than described quartz sand Bubbled stone more than (4) 5 centimetres.
Harvester the most according to claim 1, it is characterised in that be provided with the described gas of control on described air pump case (27)
The switch A (11) and the switch B (12) of the described air pump B (23) of control of pump A (22).
Harvester the most according to claim 6, it is characterised in that the material of described extraction catheter (5) is nonabsorbable
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445007.9U CN205691386U (en) | 2016-05-16 | 2016-05-16 | A kind of soil gas harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445007.9U CN205691386U (en) | 2016-05-16 | 2016-05-16 | A kind of soil gas harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205691386U true CN205691386U (en) | 2016-11-16 |
Family
ID=57261805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620445007.9U Active CN205691386U (en) | 2016-05-16 | 2016-05-16 | A kind of soil gas harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205691386U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956930A (en) * | 2017-04-28 | 2017-07-18 | 湖南三德科技股份有限公司 | Power cabinet for sample pneumatic conveyer system |
| CN110646254A (en) * | 2019-10-17 | 2020-01-03 | 中国环境科学研究院 | Method for quickly and simply detecting stabilization of garbage yard and landfill gas detection device |
| CN113686626A (en) * | 2021-08-26 | 2021-11-23 | 上海化工院检测有限公司 | Replaceable harmful gas detecting and sampling device |
-
2016
- 2016-05-16 CN CN201620445007.9U patent/CN205691386U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956930A (en) * | 2017-04-28 | 2017-07-18 | 湖南三德科技股份有限公司 | Power cabinet for sample pneumatic conveyer system |
| CN110646254A (en) * | 2019-10-17 | 2020-01-03 | 中国环境科学研究院 | Method for quickly and simply detecting stabilization of garbage yard and landfill gas detection device |
| CN113686626A (en) * | 2021-08-26 | 2021-11-23 | 上海化工院检测有限公司 | Replaceable harmful gas detecting and sampling device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |