CN215089735U

CN215089735U - Soil gas-phase extraction device

Info

Publication number: CN215089735U
Application number: CN202023346661.XU
Authority: CN
Inventors: 石军
Original assignee: Zhongke Houtu Runze Environmental Technology Jiangsu Co Ltd
Current assignee: Zhongke Houtu Runze Environmental Technology Jiangsu Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-10
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a soil gaseous phase extraction device, including filler frame and air extraction well, the first interface of lower extreme equal fixation on the filler frame, be located the first interface upper end of upside through first bolt fixed connection top cap, the exhaust tube is fixed to the top cap upper end, rubber packing ring upper end installation toper sliding ring, toper sliding ring lower extreme extends to inside the recess, the threaded rod annular is outer to rotate to connect and rotates the frame, it all installs spacing support to rotate frame annular outer end upper portion and telescopic link upper portion, be located left spacing support and rotate the frame and rotate and be connected, two spacing support lower extremes all are through third bolt and air extraction well fixed connection, it is located filler frame left side to rotate the frame, compared with the prior art, the utility model discloses following beneficial effect has: the rubber ring is convenient to adjust, so that the inner wall of the extraction well can be tightly attached, the lower end of the device is further ensured to be in a sealed environment, the gas in the soil is conveniently extracted, and the using effect is good.

Description

Soil gas-phase extraction device

Technical Field

The utility model relates to a soil gas phase extraction device belongs to soil meteorological extraction technical field.

Background

The soil vapor extraction technology (SVE) utilizes a vacuum pump to extract and generate negative pressure, when air flows through a polluted area, volatile and semi-volatile organic pollutants in soil gaps are desorbed and carried away by airflow, and the volatile and semi-volatile organic pollutants are extracted, collected and finally treated to achieve the purpose of purifying the aeration zone soil. In general use, can set up the gas injection well, artifical let in the air to soil, the atmosphere is discharged to the gas of taking out after removing processing such as steam and absorption, perhaps according to the difference of pollutant, adopts corresponding gas treatment technique, and soil vapor extraction device equipment mainly divide into three major systems: in some places with light pollution degree or in the middle and later periods of repair, the concentration of residual volatile or semi-volatile pollutants in soil is reduced to a lower level, the mass transfer and diffusion among phases of the pollutants are slow, a large amount of equipment is occupied in a traditional large extraction system, the extraction system is started and operated for a long time, and the operation cost is high.

The Chinese patent publication numbers are: CN206898055U is used for polluting prosthetic soil vapor phase extraction device of soil, when fixing leak protection gas sealing washer on the aspiration well, because there may be the error in the aspiration well internal diameter, lead to leak protection gas sealing washer can't laminate with the aspiration well inner wall completely to can't satisfy the device lower extreme and be in sealed environment, so that the effect of taking out the inside air of soil is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a soil gas phase extraction device to solve and to provide in the above-mentioned background art when fixing leak protection gas seal circle on the air extraction well, because there is the error in the air extraction well internal diameter, lead to leak protection gas seal circle can't laminate completely with the air extraction well inner wall, thereby can't satisfy the device lower extreme and be in sealed environment, so that can't be with the problem of taking out the inside air of soil, the utility model discloses be convenient for adjust the rubber circle, thereby can closely laminate the air extraction well inner wall, and then guarantee that the device lower extreme is in sealed environment, conveniently take out the inside gas of soil, excellent in use effect.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the soil gas phase extraction device comprises a filling frame and an air extraction well, wherein a first interface is fixed at the upper end and the lower end of the filling frame, the upper end of the first interface is positioned at the upper side, an air extraction pipe is fixed at the upper end of the top cover, the lower end of the top cover is positioned at the lower side, a second interface is fixed at the lower end of the first interface through a second bolt, a breathable screen is fixed at the lower end of the second interface, a fixing ring is fixedly connected to the annular outer end of the filling frame, a fixing ring-shaped limiting plate is fixed at the lower end of the fixing ring, the annular inner wall of the fixing ring-shaped limiting plate is fixedly connected with the filling frame, a rubber gasket is fixed at the outer end of the fixing ring, a groove is formed in the upper end of the rubber gasket, a conical sliding ring is installed at the upper end of the rubber gasket, the lower end of the conical sliding ring extends into the groove, the air extraction well is laminated at the upper part of the annular outer end of the rubber gasket, and the filling frame, the conical sliding ring, the rubber gasket, the conical sliding ring, the air extraction well, The fixed ring, the annular limiting plate, the breathable screen and the second interface are located inside the air extraction well, the threaded rod and the telescopic rod are fixed respectively at the left part and the right part of the upper end of the conical sliding ring, the threaded rod is connected with the rotating frame in an annular mode, the upper portion of the outer annular end of the rotating frame and the upper portion of the telescopic rod are provided with the limiting supports, the limiting supports are located on the left side, the limiting supports are connected with the rotating frame in a rotating mode, the lower ends of the limiting supports are fixedly connected with the air extraction well through third bolts, and the rotating frame is located on the left side of the packing frame.

Furthermore, two limiting blocks are fixed on the upper portion of the annular outer end of the fixing ring in a bilateral symmetry mode, two square grooves are formed on the annular inner wall of the conical sliding ring in a bilateral symmetry mode, and the two limiting blocks are clamped into the two square grooves respectively and are connected with the square grooves in a sliding mode.

Furthermore, the opposite ends of the first connector and the second connector which are positioned at the lower side are respectively provided with an annular groove, and a second breathable screen plate is arranged in each of the two annular grooves.

Further, the grid plate is fixed to filler frame annular inner wall lower part, the gag lever post of laminating in grid plate upper end, at least two first ventilative otter boards are fixed to gag lever post annular outer end equidistance, at least two first ventilative otter board annular outer end all laminates with filler frame annular inner wall, the grid plate is located the ventilative otter board upside of second.

Furthermore, be located the upside all install a sealing washer between first interface and the top cap, the sealing washer is located the gag lever post upside.

Furthermore, a first gas outlet is formed in the upper end of the exhaust pipe, a second gas outlet is formed in the right end of the exhaust pipe, the upper end of the first gas outlet is fixedly connected with an air extraction device, and the outer end of the second gas outlet is rotatably connected with a gas sampling device.

The utility model has the advantages that: when the rubber packing ring can not be laminated with the inner wall of the extraction well, the rotating frame rotates to drive the threaded rod to extend, the tapered sliding ring is driven to slide downwards to the inside of the groove, the rubber packing ring is driven to be extruded and increased, the annular outer end of the rubber packing ring is laminated on the inner wall of the packing frame, the sealing condition of the lower end of the device is realized, the lower end of the device is guaranteed to be in a sealed environment, the gas in the soil is conveniently extracted, and the using effect is good.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a soil vapor-phase extraction device of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

in the figure: 1-top cover, 2-first interface, 3-sealing ring, 4-first bolt, 5-filler frame, 6-limit bracket, 7-rotating frame, 8-pumping well, 9-taper slip ring, 10-rubber gasket, 11-fixing ring, 12-groove, 13-ring limit plate, 14-threaded rod, 15-ventilation screen, 16-second interface, 17-square groove, 18-limit block, 19-ring groove, 20-limit rod, 21-pumping pipe, 22-first ventilation screen, 23-second ventilation screen, 24-telescopic rod.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a soil gas phase extraction device comprises a filler frame 5 and an extraction well 8, wherein first connectors 2 are fixed at the upper end and the lower end of the filler frame 5, the upper end of the first connector 2 positioned at the upper side is fixedly connected with a top cover 1 through a first bolt 4, an extraction pipe 21 is fixed at the upper end of the top cover 1, a second connector 16 is fixed at the lower end of the first connector 2 positioned at the lower side through a second bolt, a breathable screen 15 is fixed at the lower end of the second connector 16, a fixing ring 11 is fixedly connected with the annular outer end of the filler frame 5, a fixing ring-shaped limiting plate 13 is fixed at the lower end of the fixing ring 11, the annular inner wall of the annular limiting plate 13 is fixedly connected with the filler frame 5, a rubber gasket 10 is fixed at the outer end of the fixing ring 11, a groove 12 is formed at the upper end of the rubber gasket 10, a conical sliding ring 9 is installed at the upper end of the conical sliding ring 9, the lower end of the conical sliding ring 9 extends into the groove 12, the extraction well 8 is attached to the annular outer end of the rubber gasket 10, the filler frame 5, the conical sliding ring 9, Rubber packing ring 10, gu fixed ring 11, annular limiting plate 13, ventilative screen cloth 15 and second interface 16 all are located inside aspiration well 8, the part is respectively fixed threaded rod 14 and telescopic link 24 about toper sliding ring 9 upper end, threaded rod 14 rotates the connection outward and rotates frame 7, it all installs spacing support 6 to rotate 7 annular outer end upper portion of frame and telescopic link 24 upper portion, it rotates with rotating frame 7 to be located left spacing support 6 and is connected, two 6 lower extremes of spacing support are all through third bolt and aspiration well 8 fixed connection, it is located 5 left sides of packing frame to rotate frame 7, rotate frame 7 through the rotation, thereby drive threaded rod 14 extension, thereby it is inside to drive toper sliding ring 9 lower extreme downwardly moving to recess 12, and then drive the increase of rubber packing ring 10, make rubber packing ring 10 can paste 5 inner walls of packing frame.

Two stopper 18 are fixed to solid fixed ring 11 annular outer end upper portion bilateral symmetry, and two square grooves 17 are seted up to toper sliding ring 9 annular inner wall bilateral symmetry, and two stopper 18 are blocked respectively two square groove 17 insidely and with square groove 17 sliding connection, prevent to take place to break away from between toper sliding ring 9 and the rubber packing ring 10, lead to toper sliding ring 9 to be difficult to block into inside recess 12.

Annular grooves 19 are formed in opposite ends of the first connector 2 and the second connector 16 which are positioned on the lower side, and a second breathable screen 23 is arranged in each annular groove 19 to prevent soil in the filling frame 5 from falling onto the breathable screen 15.

Grid plates are fixed on the lower portion of the annular inner wall of the packing frame 5, the upper end of each grid plate is attached to a limiting rod 20, at least two first breathable net plates 22 are fixed on the outer annular end of the limiting rod 20 at equal intervals, the outer annular ends of the at least two first breathable net plates 22 are attached to the inner annular wall of the packing frame 5, the grid plates are located on the upper side of the second breathable net plates 23, and test soil of different types can be placed into the grid plates according to needs.

All install a sealing washer 3 between the first interface 2 that is located the upside and the top cap 1, sealing washer 3 is located the gag lever post 20 upside, prevents that gas from leaking from the gap between top cap 1 and the first interface 2.

First gas outlet is seted up to exhaust tube 21 upper end, and the second gas outlet is seted up to exhaust tube 21 right-hand member, first gas outlet upper end fixed connection air exhaust equipment, and the gas sampling device is connected in second gas outlet outer end rotation, takes out the inside gas of soil in the second gas outlet through air exhaust equipment, and rethread gas sampling device carries out collection analysis to gas.

The specific implementation mode is as follows: firstly, an air extraction well 8 is drilled on the ground to be measured, then the device is placed in the air extraction well 8, a limiting bracket 6 is placed on the surface of the ground, then a third bolt is screwed, the device is fixed, then a first bolt 4 is screwed down, a top cover 1 is opened, a limiting rod 20 is upwards drawn out, soil to be tested is poured onto a first breathable net plate 22, after the soil is installed, the limiting rod 20 is put back again, the top cover 1 is covered, the first bolt 4 is screwed, if the rubber gasket 10 cannot be attached to the inner wall of the air extraction well 8, a holding rod on a rotating frame 7 is held at the moment, the rotating frame 7 is rotated, a threaded rod 14 and a telescopic rod 24 are driven to extend together, so that a conical sliding ring 9 is driven to slide downwards into a groove 12, the rubber gasket 10 is driven to be extruded and increased in stress, the annular outer end of the rubber gasket 10 is attached to the inner wall of a filling material frame 5, and the sealing condition of the lower end of the device is realized, the device power is switched on at this moment, air exhaust equipment is opened, the gas inside the soil is upwards extracted along the bottom end of the breathable screen 15 through the air exhaust equipment, and the gas passes through the filler frame 5 to enter the sampling device, so that the measurement of the content of volatile organic compounds inside the soil is realized, and the using effect is good.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A soil vapor phase extraction device is characterized in that: the device comprises a filler frame (5) and an air pumping well (8), wherein the upper end and the lower end of the filler frame (5) are respectively fixed with a first interface (2), the upper end of the first interface (2) positioned at the upper side is fixedly connected with a top cover (1) through a first bolt (4), the upper end of the top cover (1) is fixed with an air pumping pipe (21), the lower end of the first interface (2) positioned at the lower side is fixed with a second interface (16) through a second bolt, the lower end of the second interface (16) is fixed with an air-permeable screen (15), the annular outer end of the filler frame (5) is fixedly connected with a fixing ring (11), the lower end of the fixing ring (11) is fixedly connected with a ring-shaped limiting plate (13), the annular inner wall of the ring-shaped limiting plate (13) is fixedly connected with the filler frame (5), the outer end of the fixing ring (11) is fixed with a rubber gasket (10), the upper end of the rubber gasket (10) is provided with a groove (12), and the conical sliding ring (9) is installed at the upper end of the rubber gasket (10), the lower end of the conical sliding ring (9) extends into the groove (12), the upper part of the annular outer end of the rubber gasket (10) is attached to the air extraction well (8), the filler frame (5), the conical sliding ring (9), the rubber gasket (10), the fixing ring (11), the annular limiting plate (13), the breathable screen (15) and the second interface (16) are located inside the air extraction well (8), the left part and the right part of the upper end of the conical sliding ring (9) are respectively fixed with the threaded rod (14) and the telescopic rod (24), the threaded rod (14) is in annular outer rotary connection with the rotating frame (7), the upper part of the annular outer end of the rotating frame (7) and the upper part of the telescopic rod (24) are respectively provided with the limiting supports (6), the limiting supports (6) located on the left side are in rotary connection with the rotating frame (7), and the lower ends of the two limiting supports (6) are fixedly connected with the air extraction well (8) through third bolts, the rotating frame (7) is positioned on the left side of the filling frame (5).

2. The soil vapor extraction device of claim 1, wherein: two limiting blocks (18) are fixed on the upper portion of the annular outer end of the fixing ring (11) in a bilateral symmetry mode, two square grooves (17) are formed on the annular inner wall of the conical sliding ring (9) in a bilateral symmetry mode, and the limiting blocks (18) are clamped into the two square grooves (17) respectively and are connected with the square grooves (17) in a sliding mode.

3. The soil vapor extraction device of claim 1, wherein: annular grooves (19) are formed in opposite ends of the first connector (2) and the second connector (16) which are positioned on the lower side, and a second breathable screen plate (23) is arranged in each annular groove (19).

4. The soil vapor extraction device of claim 1, wherein: the fixed net board in filler frame (5) annular inner wall lower part, net board upper end laminating gag lever post (20), gag lever post (20) annular outer end equidistance is fixed two at least first ventilative otter board (22), two at least first ventilative otter board (22) annular outer end all laminates with filler frame (5) annular inner wall, the net board is located the ventilative otter board of second (23) upside.

5. The soil vapor extraction device of claim 4, wherein: be located the upside all install a sealing washer (3) between first interface (2) and top cap (1), sealing washer (3) are located gag lever post (20) upside.

6. The soil vapor extraction device of claim 1, wherein: the gas sampling device is characterized in that a first gas outlet is formed in the upper end of the gas extraction pipe (21), a second gas outlet is formed in the right end of the gas extraction pipe (21), the upper end of the first gas outlet is fixedly connected with gas extraction equipment, and the outer end of the second gas outlet is rotatably connected with the gas sampling device.