CN211904825U - Soil gas collecting device for geochemical exploration - Google Patents
Soil gas collecting device for geochemical exploration Download PDFInfo
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- CN211904825U CN211904825U CN202020676066.3U CN202020676066U CN211904825U CN 211904825 U CN211904825 U CN 211904825U CN 202020676066 U CN202020676066 U CN 202020676066U CN 211904825 U CN211904825 U CN 211904825U
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- negative pressure
- fixedly connected
- soil
- gas
- thick bamboo
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- 239000002680 soil gas Substances 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 40
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 29
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 29
- 241001330002 Bambuseae Species 0.000 claims abstract description 29
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 29
- 239000011425 bamboo Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a soil gas collection system for geochemical exploration, including the empty core section of thick bamboo of negative pressure and extension bar, the gas taking hole has been seted up to the lateral wall of the empty core section of thick bamboo of negative pressure, the inner wall fixedly connected with filter screen of gas taking hole, the first water proof membrane of lateral wall fixedly connected with of filter screen, the top fixedly connected with annular protecting tube of the empty core section of thick bamboo of negative pressure, the top fixedly connected with of sample depression bar sample the pressure handle, the inner wall of the empty core section of thick bamboo of negative pressure is provided with the second water proof membrane, the bottom fixedly connected with sampling tube of sample depression bar, the interior roof fixedly connected with gas capture core of sampling tube. This a soil gas collection system for geochemical exploration through setting up the hollow section of thick bamboo of negative pressure and sample depression bar, can be when sample depression bar moves down, the hollow section of thick bamboo of negative pressure in the negative pressure inhales soil gas in the hollow section of thick bamboo of negative pressure to adsorb in the gas catches the core, reached the purpose of filtering moisture when gathering soil gas.
Description
Technical Field
The utility model relates to a gaseous collection technical field specifically is a soil gas collection system for geochemical exploration.
Background
After the underground deep oil gas is formed, the oil gas can be dissipated in the oil gas migration process or after the oil gas is accumulated until the oil gas is dissipated to the ground surface, the oil gas is dissipated to the ground surface along the open fault to form macro leakage, the oil gas in the oil gas accumulation has small leakage amount due to the action of a cover layer or other cover bodies and is called micro leakage, and the oil gas leaked to the ground surface in a micro mode can cause a series of physical and chemical changes in the range of the earth crust close to the ground surface.
However, with the development of analysis and test technology, people can find these micro-leaks through various detection instruments and methods, and can quantitatively test and research these micro-leaks, firstly, soil gas needs to be collected, and the existing soil gas collecting device is easily interfered by moisture in soil while collecting gas, and interferes with the collection of soil gas, so that the artificial analysis of soil gas is affected, and when the soil gas is collected, the soil gas is easily limited by soil depth.
Therefore, a soil gas collecting device for geochemical exploration is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a soil gas collection system for geochemical exploration to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a soil gas collecting device for geochemical exploration comprises a negative pressure hollow cylinder and an extension rod, wherein the bottom end of the negative pressure hollow cylinder is fixedly connected with an embedded conical head, the side surface of the negative pressure hollow cylinder is fixedly connected with an expanded soil ring matched with the embedded conical head, the side wall of the negative pressure hollow cylinder is provided with a gas taking hole, the inner wall of the gas taking hole is fixedly connected with a filter screen, the side wall of the filter screen is fixedly connected with a first waterproof membrane, the top end of the negative pressure hollow cylinder is fixedly connected with an annular protective pipe, the outer surface of the annular protective pipe is provided with an external thread, the top end of the negative pressure hollow cylinder is provided with a through hole, the inner wall of the through hole is slidably connected with a sampling pressure rod, the top end of the sampling pressure rod is fixedly connected with a sampling pressure handle, the inner wall of the negative pressure hollow cylinder is provided with a second waterproof membrane, and, the interior roof fixedly connected with gas capture core of sampling tube, the inner wall of sampling tube is provided with the third water film of preventing water.
Preferably, the air intake hole is the rectangle, the quantity of air intake hole is four, four air intake hole circumference equidistance sets up in the lateral wall of the hollow section of thick bamboo of negative pressure.
Preferably, the upper surface and the inner top surface of the negative pressure hollow cylinder are both provided with rubber sealing rings.
Preferably, the bottom of sampling tube is provided with rubber seal pad, the inner wall of the hollow section of thick bamboo of negative pressure is provided with ring packing, rubber seal pad and ring packing looks adaptation.
Preferably, the surface of sampling tube is provided with the gas pocket, the quantity of gas pocket is a plurality of, a plurality of the gas pocket evenly sets up the surface at the sampling tube.
Preferably, the extension bar is of a hollow tubular structure, the inner wall of the extension bar is connected with the extension bar in a sliding mode, and inner threads matched with the outer threads on the surface of the annular protective pipe are arranged on the inner walls of the two ends of the extension bar.
Advantageous effects
The utility model provides a soil gas collection system for geochemical exploration possesses following beneficial effect:
1. this a soil gas collection system for geochemistry exploration, through setting up first water proof membrane, the second water proof membrane, third water proof membrane and filter screen, can block in solid and the moisture entering sample tube in the soil, through setting up rubber seal, rubber seal pad and ring packing, be sealed environment in can making the hollow section of thick bamboo of negative pressure, through setting up the hollow section of thick bamboo of negative pressure and sample depression bar, can be when sample depression bar downstream, the hollow section of thick bamboo of negative pressure is inhaled soil gas in the hollow section of thick bamboo of negative pressure, and adsorb in the core is caught to gas, the purpose of filtering moisture when having reached the collection soil gas.
2. This a soil gas collection system for geochemistry exploration through setting up the extension bar, can be convenient to the sample of darker soil gas, through setting up into soil conical head and inflation soil circle, can be relaxed insert the device in the soil to for gathering soil gas support the space.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic view of the structure of the extension bar of the present invention.
In the figure: the device comprises a negative pressure hollow cylinder 1, an extension rod 2, an earth-entering conical head 3, an expanding soil ring 4, a filter screen 5, a first waterproof film 6, an annular protective pipe 7, a sampling compression rod 8, a second waterproof film 9, a sampling pipe 10, a gas capturing core 11, a third waterproof film 12, a rubber sealing ring 13, a rubber sealing gasket 14 and an annular sealing ring 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a soil gas collecting device for geochemical exploration comprises a negative pressure hollow cylinder 1 and an extension bar 2.
The bottom fixedly connected with conical head 3 that buries of the hollow section of thick bamboo 1 of negative pressure, the side fixedly connected with of the hollow section of thick bamboo 1 of negative pressure and the inflation soil circle 4 of 3 looks adaptations of burying conical head, through setting up the conical head 3 and inflation soil circle 4 of burying, can be light insert the device in the soil to for gathering soil gas has created the space.
The lateral wall of the hollow section of thick bamboo of negative pressure 1 has been seted up and has been got the gas pocket, gets the gas pocket and be the rectangle, and the quantity of getting the gas pocket is four, and four gas pocket circumference equidistance set up in the lateral wall of the hollow section of thick bamboo of negative pressure 1, the inner wall fixedly connected with filter screen 5 of getting the gas pocket, the first water proof membrane 6 of lateral wall fixedly connected with of filter screen 5.
The hollow section of thick bamboo 1 of negative pressure's top fixedly connected with annular protecting tube 7, the surface of annular protecting tube 7 is provided with the external screw thread, and the through-hole has been seted up on the hollow section of thick bamboo 1 of negative pressure's top, and sliding connection has a sample depression bar 8 in the through-hole, and the hollow section of thick bamboo 1 of negative pressure's upper surface and interior top surface all are provided with rubber seal 13, and the handle is pressed in the top fixedly connected with sample of sample depression.
The inner wall of the hollow section of thick bamboo 1 of negative pressure is provided with second water proof membrane 9, the bottom fixedly connected with sampling tube 10 of sample depression bar 1, the bottom of sampling tube 10 is provided with rubber seal pad 14, the inner wall of the hollow section of thick bamboo 1 of negative pressure is provided with ring packing 15, rubber seal pad 14 and ring packing 15 looks adaptation, through setting up rubber seal 13, rubber seal pad 14 and ring packing 15, can make the hollow section of thick bamboo of negative pressure 1 interior be sealed environment, through setting up the hollow section of thick bamboo 1 of negative pressure and sample depression bar 8, can be when sample depression bar 8 moves down, the negative pressure in the hollow section of thick bamboo 1 of negative pressure inhales soil gas in the hollow section of thick bamboo 1 of negative pressure, and adsorb the surface at gas capture core 11, the purpose of filtering moisture when having reached the.
The surface of sampling tube 10 is provided with the gas pocket, and the quantity of gas pocket is a plurality of, and a plurality of gas pocket evenly sets up the surface at sampling tube 10, and the interior roof fixedly connected with gas capture core 11 of sampling tube 10, and the inner wall of sampling tube 10 is provided with third waterproof film 12, through setting up first waterproof film 6, second waterproof film 9, third waterproof film 12 and filter screen 5, can block in the soil solid and moisture get into the hollow section of thick bamboo 1 of negative pressure.
The working principle is as follows: when the soil gas collecting device for geochemical exploration is used, a position needing soil gas sampling is firstly reached, the annular protective pipe 7 is held by hand, the sealing performance of the device is confirmed to be not damaged, the negative pressure in the negative pressure hollow pipe 1 exists, the soil-entering conical head 3 is downwards inserted into soil, the soil along the drilled site is supported by the expanded soil ring 4, when the sampling position is reached, the sampling pressure rod 8 is downwards pressed, soil gas is filtered by the filter screen 5, the first waterproof film 6 and the second waterproof film 9 from the gas taking hole under the influence of the negative pressure, the soil gas reaches the negative pressure hollow pipe 1, is filtered by the third waterproof film 12, reaches the sampling pipe 10 and is captured by the gas capturing core 11, if the sampling soil is deeper, the extension rod 2 is connected to the external thread of the annular protective pipe 7 for extension, the sampling pressure rod 8 is pressed for collecting the soil gas, and the soil gas collecting device for geochemical exploration is used, the purpose of collecting soil gas and filtering water is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a soil gas collection system for geochemical exploration, includes hollow section of thick bamboo of negative pressure (1) and extension bar (2), its characterized in that: the soil-entering conical head (3) is fixedly connected to the bottom end of the negative pressure hollow cylinder (1), the side face of the negative pressure hollow cylinder (1) is fixedly connected with an expanded soil ring (4) matched with the soil-entering conical head (3), the side wall of the negative pressure hollow cylinder (1) is provided with a gas taking hole, the inner wall of the gas taking hole is fixedly connected with a filter screen (5), the side wall of the filter screen (5) is fixedly connected with a first waterproof membrane (6), the top end of the negative pressure hollow cylinder (1) is fixedly connected with an annular protective pipe (7), the outer surface of the annular protective pipe (7) is provided with external threads, the top end of the negative pressure hollow cylinder (1) is provided with a through hole, the inner wall of the through hole is slidably connected with a sampling pressure rod (8), the top end of the sampling pressure rod (8) is fixedly connected with a sampling pressure handle, and the inner wall of the negative, the bottom fixedly connected with sampling tube (10) of sample depression bar (8), the interior roof fixedly connected with gas capture core (11) of sampling tube (10), the inner wall of sampling tube (10) is provided with third water film (12).
2. The soil gas collection device for geochemical exploration, according to claim 1, wherein: the air intake holes are rectangular, the number of the air intake holes is four, and the air intake holes are circumferentially arranged on the side wall of the negative pressure hollow cylinder (1) at equal intervals.
3. The soil gas collection device for geochemical exploration, according to claim 1, wherein: the upper surface and the inner top surface of the negative pressure hollow cylinder (1) are provided with rubber sealing rings (13).
4. The soil gas collection device for geochemical exploration, according to claim 1, wherein: the bottom of sampling tube (10) is provided with rubber packing pad (14), the inner wall of the hollow section of thick bamboo of negative pressure (1) is provided with ring packing (15), rubber packing pad (14) and ring packing (15) looks adaptation.
5. The soil gas collection device for geochemical exploration, according to claim 1, wherein: the surface of sampling tube (10) is provided with the gas pocket, the quantity of gas pocket is a plurality of, a plurality of the gas pocket evenly sets up the surface at sampling tube (10).
6. The soil gas collection device for geochemical exploration, according to claim 1, wherein: extension bar (2) are hollow tubular structure, the inner wall sliding connection of extension bar (2) has the stock, the both ends inner wall of extension bar (2) all is provided with the internal thread with annular protecting tube (7) surface external screw thread looks adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020676066.3U CN211904825U (en) | 2020-04-28 | 2020-04-28 | Soil gas collecting device for geochemical exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020676066.3U CN211904825U (en) | 2020-04-28 | 2020-04-28 | Soil gas collecting device for geochemical exploration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211904825U true CN211904825U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020676066.3U Expired - Fee Related CN211904825U (en) | 2020-04-28 | 2020-04-28 | Soil gas collecting device for geochemical exploration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211904825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117571400A (en) * | 2024-01-17 | 2024-02-20 | 内蒙古工业大学 | Deep CO of soil micro-leakage 2 Gas collection device and working method thereof |
-
2020
- 2020-04-28 CN CN202020676066.3U patent/CN211904825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117571400A (en) * | 2024-01-17 | 2024-02-20 | 内蒙古工业大学 | Deep CO of soil micro-leakage 2 Gas collection device and working method thereof |
| CN117571400B (en) * | 2024-01-17 | 2024-03-29 | 内蒙古工业大学 | Deep CO of soil micro-leakage 2 Gas collection device and working method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |