CN215833091U

CN215833091U - Soil gas layering collection device not prone to sucking soil

Info

Publication number: CN215833091U
Application number: CN202120768208.3U
Authority: CN
Inventors: 许大为; 姚晓君; 支永潮; 李云; 苏金辉
Original assignee: Foreverway Environmental Science And Technology Co ltd
Current assignee: Foreverway Environmental Science And Technology Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-02-15
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a soil gas layered collection device not easy to suck soil, comprising a gas collection shell, a base and a connecting column. According to the device, the gas collection shell is inserted into soil, gas collection is carried out by inserting the gas collection shell into different depths according to scales, meanwhile, the cross rod is pressed to enable the vertical rod to drive the sealing ring to move downwards to cover the fan-shaped cavity, so that the soil is prevented from entering the gas collection cavity, when the gas collection shell is inserted into a specified depth, the cross rod is loosened, the spring rebounds to an original state, the sealing ring moves upwards, the fan-shaped cavity is opened, the negative pressure machine is started to enable the gas collection cavity to form a negative pressure environment for gas collection, the cross rod is pressed again to enable the gas collection cavity to be closed after the gas collection is finished, then the gas collection device is pulled out to collect and monitor the collector, soil gas at different depths can be collected, the soil can be prevented from entering the gas collection cavity, and the using effect of the device is enhanced.

Description

Soil gas layering collection device not prone to sucking soil

Technical Field

The utility model relates to the technical field of soil gas, in particular to a soil gas layered collection device which is not easy to suck soil.

Background

Soil gas belongs to gas in surface sediments, and soil and bottom soil, marsh and peat, seabed sediments and the like exist in the environment. Mainly comprises compounds of C02, CH4, H2, N20, NI-13 and the like. Is a mixture of products of biochemical action with the atmosphere.

Because the distribution of soil gas in soil can have great inhomogeneities in vertical and horizontal direction, and receive the influence of gas volatility, adopt current gas well probably to lead to the mixture of the gas of different aspect when gathering to the gas in the soil to lead to there being the deviation between gained gas gathering and the true gas, and when the soil gas in the extraction soil under the collection system inner chamber formation negative pressure environment, extremely easily with soil suction to the gas gathering intracavity, it is most likely to stop up the filter layer, lead to pumping inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problems, the soil gas layered collecting device which is not easy to suck soil is provided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a soil gas layered collection device not easy to suck soil comprises a gas collection shell, a base and a connecting column, wherein the top and the bottom of the gas collection shell are respectively fixedly connected with the connecting column and the base, the top of the connecting column is fixedly connected with a turntable, the top of the turntable is fixedly connected with a negative pressure machine, the inner surface wall of the connecting column is elastically connected with a cross rod through two groups of springs, the cross rod is slidably connected with the connecting column, one end of the cross rod, away from the springs, is fixedly connected with a vertical rod, the outer surface wall of the vertical rod is fixedly connected with two groups of sealing rings, the two groups of sealing rings are both slidably connected with a gas collection shell, the inner surface wall of the gas collection shell is fixedly connected with two groups of filter layers, two groups of fan-shaped cavities are arranged at the horizontal end of the gas collection shell, the fan-shaped cavities are respectively communicated with the filter layers and the outside, the inner surface wall of the horizontal end of the gas collection shell is fixedly connected with a partition plate, and the upper surface and the lower surface of the partition plate respectively enclose an upper gas collection cavity and the inner surface of the gas collection shell, and the upper air collecting cavity and the lower air collecting cavity are communicated with the negative pressure machine through two groups of air pipes which are arranged in the connecting column.

As a further description of the above technical solution:

the base is connected with the gas collection shell in a threaded manner through a threaded groove in the inner surface wall.

As a further description of the above technical solution:

the bottom of the base is in a sawtooth shape.

As a further description of the above technical solution:

scales are carved on the outer wall of the connecting column.

As a further description of the above technical solution:

and the inner surface wall of the sealing ring is fixedly connected with a sealing cushion layer.

As a further description of the above technical solution:

the cross section of the sector cavity is parallelogram.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

according to the device, the gas collection shell is inserted into soil, gas collection is carried out by inserting the gas collection shell into different depths according to scales, meanwhile, the cross rod is pressed to enable the vertical rod to drive the sealing ring to move downwards to cover the fan-shaped cavity, so that the soil is prevented from entering the gas collection cavity, when the gas collection shell is inserted into a specified depth, the cross rod is loosened, the spring rebounds to an original state, the sealing ring moves upwards, the fan-shaped cavity is opened, the negative pressure machine is started to enable the gas collection cavity to form a negative pressure environment for gas collection, the cross rod is pressed again to enable the gas collection cavity to be closed after the gas collection is finished, then the gas collection device is pulled out to collect and monitor the collector, soil gas at different depths can be collected, the soil can be prevented from entering the gas collection cavity, and the using effect of the device is enhanced.

Drawings

FIG. 1 illustrates a schematic diagram of a structure provided in accordance with an embodiment of the present invention;

FIG. 2 illustrates a side view schematic diagram provided in accordance with an embodiment of the present invention;

fig. 3 shows an enlarged schematic structural diagram at a provided in accordance with an embodiment of the present invention.

Illustration of the drawings:

1. a partition plate; 2. a lower air collecting cavity; 3. a base; 4. an upper air collecting cavity; 5. a gas collection shell; 6. a vertical rod; 7. connecting columns; 8. an air tube; 9. a spring; 10. a cross bar; 11. a turntable; 12. a negative pressure machine; 13. a seal ring; 14. sealing the cushion layer; 15. a sector-shaped cavity; 16. calibration; 17. a filter layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a soil gas layering collection system of difficult suction earth, including gas collection shell 5, base 3 and spliced pole 7, 5 tops of gas collection shell and bottom respectively with spliced pole 7, 3 fixedly connected with spliced pole 7 tops fixedly connected with carousel 11 of base, carousel 11 top fixedly connected with negative pressure machine 12, the interior surface wall of spliced pole 7 has horizontal pole 10 through two sets of spring 9 elastic connection, and horizontal pole 10 and spliced pole 7 sliding connection, spring 9's one end fixedly connected with montant 6 is kept away from to horizontal pole 10, two sets of sealing rings 13 of montant 6 outward appearance wall fixedly connected with, and two sets of sealing rings 13 all with gas collection shell 5 sliding connection, surface wall fixedly connected with two sets of filter layers 17 in the gas collection shell 5, two sets of fan-shaped chamber 15 have been seted up to gas collection shell 5 horizontal end, and fan-shaped chamber 15 is linked together with filter layer 17 and external world respectively, surface wall fixedly connected with baffle 1 in the gas collection shell 5 horizontal end, baffle 1 upper surface and lower surface enclose into collection 4 and lower collection 2 with the interior surface wall of gas collection chamber 5 respectively And the upper air collecting cavity 4 and the lower air collecting cavity 2 are communicated with a negative pressure machine 12 through two groups of air pipes 8 which are arranged in the connecting column 7.

Specifically, as shown in fig. 3, the base 3 is screwed with the gas collecting shell 5 through the thread groove of the inner surface wall, so that the gas collecting shell 5 and the base 3 can be conveniently detached, and the inside of the gas collecting shell can be cleaned.

Specifically, as shown in fig. 1, the bottom of the base 3 is serrated, so that the gas collecting device can be conveniently inserted underground.

Specifically, as shown in fig. 2, the outer wall of the connecting column 7 is marked with scales 16, so that the depth of the gas collecting device inserted into the ground can be conveniently observed.

Specifically, as shown in fig. 3, the inner surface wall of the sealing ring 13 is fixedly connected with a sealing cushion layer 14, so that the sealing performance of the gas collection cavity 5 after gas collection is enhanced.

Specifically, as shown in fig. 3, the cross section of the sector cavity 15 is a parallelogram, which can effectively prevent soil from entering the gas collection cavity.

The working principle is as follows: during the use, through in inserting gas collection shell 5 into soil, insert the different degree of depth according to scale 16 and carry out the gas collection, press horizontal pole 10 simultaneously and make montant 6 drive sealing ring 13 downstream, cover fan-shaped chamber 15, avoid soil to get into the gas collection chamber, when inserting appointed degree of depth, loosen horizontal pole 10, spring 9 is with its original state that rebounds, sealing ring 13 rebound this moment, fan-shaped chamber 15 is opened, start negative pressure machine 12 and make the gas collection chamber form negative pressure environment and carry out the gas collection, press horizontal pole 10 once more after the gas collection is accomplished and make the gas collection chamber seal, later extract the gas collection device and collect the monitoring with the collector, this device can collect the soil gas of the different degree of depth, and can avoid soil can enter into the gas collection chamber, the result of use of device has been strengthened.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The soil gas layered collection device comprises a gas collection shell (5), a base (3) and a connecting column (7), wherein the top and the bottom of the gas collection shell (5) are respectively fixedly connected with the connecting column (7) and the base (3), the top of the connecting column (7) is fixedly connected with a turntable (11), the top of the turntable (11) is fixedly connected with a negative pressure machine (12), the inner surface wall of the connecting column (7) is elastically connected with a cross rod (10) through two groups of springs (9), the cross rod (10) is slidably connected with the connecting column (7), one end of the cross rod (10) far away from the springs (9) is fixedly connected with a vertical rod (6), the outer surface wall of the vertical rod (6) is fixedly connected with two groups of sealing rings (13), and the two groups of sealing rings (13) are both slidably connected with the gas collection shell (5), the inner surface wall of the gas collection shell (5) is fixedly connected with two groups of filtering layers (17), two sets of sector-shaped cavities (15) are formed in the horizontal end of the air collecting shell (5), the sector-shaped cavities (15) are communicated with a filter layer (17) and the outside respectively, a partition plate (1) is fixedly connected to the inner surface wall of the horizontal end of the air collecting shell (5), the upper surface and the lower surface of the partition plate (1) are respectively enclosed with the inner surface wall of the air collecting shell (5) to form an upper air collecting cavity (4) and a lower air collecting cavity (2), and the upper air collecting cavity (4) and the lower air collecting cavity (2) are communicated with a negative pressure machine (12) through two sets of air pipes (8) which are arranged inside a connecting column (7) in a built-in mode.

2. The stratified soil gas collecting device with low soil absorption tendency as claimed in claim 1, wherein said base (3) is screwed with the gas collecting casing (5) through the thread groove of the inner surface wall.

3. The stratified soil gas collecting device not prone to soil absorption as claimed in claim 1, wherein the bottom of the base (3) is serrated.

4. The stratified soil gas collecting device not easy to suck soil as claimed in claim 1, wherein the outer wall of the connecting column (7) is carved with scales (16).

5. The stratified soil gas collecting device not prone to soil absorption as claimed in claim 1, wherein the inner surface wall of the sealing ring (13) is fixedly connected with a sealing cushion layer (14).

6. The soil gas layered collection device not easy to suck soil according to claim 1, wherein the sector-shaped cavity (15) has a parallelogram shape in cross section.