CN215712311U

CN215712311U - Single-pump siphon type multiphase extraction repairing device for repairing polluted site

Info

Publication number: CN215712311U
Application number: CN202122287592.8U
Authority: CN
Inventors: 梁信; 李娜
Original assignee: Jiangsu Zhongchuan Ecological Environment Co ltd
Current assignee: Jiangsu Zhongchuan Ecological Environment Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-01
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a single-pump siphon type multiphase extraction and restoration device for restoring a polluted site, which comprises a base, wherein a gas-liquid separation box, a water storage tank and an oxidant storage tank are fixedly connected to the upper surface of the base, a siphon and a vacuum pump inlet pipe are fixedly connected to the outer side wall of the gas-liquid separation box, a vacuum pump is fixedly connected to one end of the vacuum pump inlet pipe, a vacuum pump outlet pipe is fixedly connected to the outer side wall of the vacuum pump, a first three-way pipe and a second three-way pipe are fixedly connected to one end of the vacuum pump outlet pipe in sequence, mixing pipes are fixedly connected to the outer side walls of the first three-way pipe and the second three-way pipe, one ends of the two mixing pipes respectively penetrate through the side walls of the water storage tank and the oxidant storage tank and extend to the insides of the water storage tank and the oxidant storage tank, the problems that the existing multiphase extraction and restoration device usually adopts a single-well structure and the design and construction complexity is high, meanwhile, the existing multiphase extraction repair device has the problem of long repair time.

Description

Single-pump siphon type multiphase extraction repairing device for repairing polluted site

Technical Field

The utility model relates to the technical field of polluted site restoration, in particular to a single-pump siphon-type multiphase extraction restoration device for polluted site restoration.

Background

The multiphase extraction and restoration technology is used for pumping gas and liquid in a polluted area, including soil gas, underground water and non-aqueous phase liquid, from underground to above-ground for treatment through vacuum extraction equipment or a water pump, so that the purpose of quickly controlling and synchronously restoring the pollution of the soil and the underground water is achieved. The technology has the synergistic effects of extraction treatment, soil vapor extraction, free phase recovery, vacuum strengthening, biological ventilation, natural attenuation and the like, and is rapidly developed in engineering application in recent years.

The existing multiphase extraction and repair device is generally in a single-well structure, the complexity of design and construction is high, the overall construction cost is high, meanwhile, the existing multiphase extraction and repair device is long in repair time and is contrary to the common domestic requirements, and therefore a single-pump siphon type multiphase extraction and repair device for repairing a polluted site is provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a single-pump siphon-type multiphase extraction and repair device for repairing a polluted site, which solves the problems that the conventional multiphase extraction and repair device usually adopts a single-well structure, the design and construction complexity is higher, the overall construction cost is higher, and meanwhile, the conventional multiphase extraction and repair device has longer repair time and is contrary to the common domestic requirements.

In order to solve the technical problems, the utility model provides the following technical scheme: the single-pump siphon-type multiphase extraction and restoration device for restoring the polluted site comprises a base, wherein the upper surface of the base is fixedly connected with a gas-liquid separation box, a water storage tank and an oxidant storage tank, the outer side wall of the gas-liquid separation box is fixedly connected with a siphon and a vacuum pump inlet pipe, one end of the vacuum pump inlet pipe is fixedly connected with a vacuum pump, the outer side wall of the vacuum pump is fixedly connected with a vacuum pump outlet pipe, one end of the vacuum pump outlet pipe is fixedly connected with a first three-way pipe and a second three-way pipe in sequence, the outer side walls of the first three-way pipe and the second three-way pipe are fixedly connected with mixing pipes, one ends of the two mixing pipes respectively penetrate through the side walls of the water storage tank and the oxidant storage tank and extend to the insides of the water storage tank and the oxidant storage tank, the top of base is equipped with the secondary separator box, the inside that the lateral wall of secondary separator box and extension to secondary separator box are run through to the one end of vacuum pump exit tube.

According to a preferable technical scheme of the utility model, the lower surface of the base is fixedly connected with a deep well and a shallow well, the lower surface of the secondary separation tank is fixedly connected with a water injection pipe, the lower end of the water injection pipe extends to the bottom in the deep well, and the lower end of the siphon pipe extends to the bottom in the shallow well.

As a preferable technical scheme of the present invention, a water pump is fixedly connected to an upper surface of the base, an inlet pipe of the water pump penetrates through a sidewall of the gas-liquid separation tank and extends into the gas-liquid separation tank, and an outlet pipe of the water pump is fixedly connected to a waste liquid treatment unit.

As a preferred technical scheme of the utility model, the upper surface of the secondary separation tank is fixedly connected with an air pump inlet pipe and a one-way air valve, one end of the air pump inlet pipe is fixedly connected with an air pump, and an outlet pipe of the air pump is fixedly connected with a waste gas treatment unit.

According to a preferable technical scheme of the utility model, the lower surfaces of the deep well and the shallow well are fixedly connected with a well bottom sealing cover, the side walls of the deep well and the shallow well are provided with sieve pores, the sieve pores on the left side are higher than the sieve pores on the right side, and the lower ends of the siphon and the water injection pipe extend to the space between the sieve pores.

According to a preferable technical scheme, the upper surface of the base is fixedly connected with flange plates in bilateral symmetry through bolts, the two flange plates are respectively sleeved outside the siphon pipe and the water injection pipe, the upper surface of the right flange plate is fixedly connected with a mounting frame, and the upper surface of the mounting frame is fixedly connected with the secondary separation tank.

As a preferred technical scheme of the present invention, the two mixing pipes respectively penetrate through the side walls of the water storage tank and the oxidant storage tank near the top, and respectively extend to the inside of the water storage tank and the oxidant storage tank near the bottom.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through setting up deep well and shallow well, after the vacuum pump starts, the siphon is taken out liquid phase pollutant and gaseous phase pollutant together to the gas-liquid separation incasement portion, gaseous phase pollutant is taken out from to the secondary separation case by the vacuum pump exit tube by the vacuum pump, at this in-process, outside atmospheric pressure passes through the compounding pipe with the inside water of storage water tank and presses into inside the vacuum pump exit tube, get into inside the secondary separation case jointly with waste gas, water deposits the bottom in the secondary separation incasement, inside the rethread water injection pipe gets into the deep well, constitute the pollutant and handle the circulation, the well construction degree of difficulty and cost have been reduced.

2. Through setting up the second three-way pipe, can be in the gaseous phase pollutant by the vacuum pump exit tube by the vacuum pump extract to the in-process of secondary separator box, outside atmospheric pressure impresses the inside oxidant of oxidant holding vessel inside the vacuum pump exit tube, mix with water and get into inside the secondary separator box, inside rethread water injection pipe gets into the deep well, participate in the pollutant and handle the circulation, degrade the pollutant in the contaminated soil, in order to reach the purpose in quick restoration place, the repair cycle in place has been shortened greatly.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a top perspective view of the present invention;

FIG. 3 is a front cross-sectional view of the present invention;

fig. 4 is a side cross-sectional view of the present invention.

Wherein: 1. a base; 2. a flange plate; 3. a siphon tube; 4. a gas-liquid separation tank; 5. a vacuum pump inlet pipe; 6. a water pump; 7. a waste liquid treatment unit; 8. an air pump inlet pipe; 9. an oxidant storage tank; 10. an air pump; 11. an exhaust gas treatment unit; 12. a deep well; 13. shallow wells; 14. screening holes; 15. a one-way air valve; 16. a water storage tank; 17. a first three-way pipe; 18. a second three-way pipe; 19. a vacuum pump outlet pipe; 20. a vacuum pump; 21. a mounting frame; 22. a secondary separation tank; 23. a water injection pipe; 24. a bottom hole sealing cover; 25. a mixing pipe.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, the single-pump siphon-type multiphase extraction and remediation device for remediation of contaminated sites comprises a base 1, a gas-liquid separation tank 4, a water storage tank 16 and an oxidant storage tank 9 are fixedly connected to the upper surface of the base 1, a siphon 3 and a vacuum pump inlet pipe 5 are fixedly connected to the outer side wall of the gas-liquid separation tank 4, a vacuum pump 20 is fixedly connected to one end of the vacuum pump inlet pipe 5, a vacuum pump outlet pipe 19 is fixedly connected to the outer side wall of the vacuum pump 20, a first three-way pipe 17 and a second three-way pipe 18 are fixedly connected to one end of the vacuum pump outlet pipe 19 in sequence, mixing pipes 25 are fixedly connected to the outer side walls of the first three-way pipe 17 and the second three-way pipe 18, one ends of the two mixing pipes 25 respectively penetrate through the side walls of the water storage tank 16 and the oxidant storage tank 9 and extend into the water storage tank 16 and the oxidant storage tank 9, a secondary separation tank 22 is arranged above the base 1, one end of the vacuum pump outlet pipe 19 penetrates through the side wall of the secondary separation tank 22 and extends to the interior of the secondary separation tank 22;

when the device is used, the base 1 is placed on the gentle ground, the shallow well 13 and the deep well 12 are both positioned in the extraction well, the vacuum pump 20 is started, the vacuum pump 20 pumps out air in the gas-liquid separation box 4 through the vacuum pump inlet pipe 5, so that the gas-liquid separation box 4 and the shallow well 13 are in a relative vacuum state, the siphon 3 pumps liquid-phase pollutants and gas-phase pollutants into the gas-liquid separation box 4 together, the liquid-phase pollutants are heavier to be deposited at the bottom in the gas-liquid separation box 4, the gas-phase pollutants are lighter to float at the top in the gas-liquid separation box 4 and then are pumped out to the secondary separation box 22 through the vacuum pump outlet pipe 19 by the vacuum pump 20, in the process, because the gas flow rate in the outlet pipe of the vacuum pump 20 is fast and the air pressure is small, the external atmospheric pressure presses water in the water storage tank 16 and the oxidant in the oxidant storage tank 9 into the vacuum pump outlet pipe 19 through the mixing pipe 25, and the waste gas enter the secondary separation box 22 together, the waste gas floats on the top in the secondary separation box 22, and the mixed liquid of the water and the oxidant is heavy and is deposited on the bottom in the secondary separation box 22.

In other embodiments, the deep well 12 and the shallow well 13 are fixedly connected to the lower surface of the base 1, the water injection pipe 23 is fixedly connected to the lower surface of the secondary separation tank 22, the lower end of the water injection pipe 23 extends to the bottom of the deep well 12, and the lower end of the siphon 3 extends to the bottom of the shallow well 13; through setting up deep well 12 and shallow well 13, can be at the inside water injection of deep well 12, at the inside water absorption of shallow well 13, after the inside water entering of deep well 12 is contaminated soil, inside capillary action and shallow well 13 inside vacuum environment pump down permeate to shallow well 13, constantly carry the pollutant at the infiltration in-process, and then constitute pollutant processing circulation, the twin-well structure has following advantage: the double-well structure is simpler, each well only consists of a section of water-permeable screen pipe and a section of water-impermeable wall pipe, the design is simple, the materials are easy to obtain, and the universality is strong; the double wells share the function of a single well, so that the load intensity of each well is reduced, the well diameter can be reduced to 60-85% compared with that of a single well with the same circulation amount; because the structure of each well is simpler and the size is smaller, the difficulty and the cost of well construction can be reduced; the function of each well is more single, a blocking device is omitted, and the installation and the maintenance are simpler and more convenient.

In other embodiments, a water pump 6 is fixedly connected to the upper surface of the base 1, an inlet pipe of the water pump 6 penetrates through the side wall of the gas-liquid separation tank 4 and extends into the gas-liquid separation tank 4, and an outlet pipe of the water pump 6 is fixedly connected with a waste liquid treatment unit 7; through setting up suction pump 6, can take out the inside waste liquid of gas-liquid separation case 4 inside to waste liquid treatment unit 7 inside, carry out centralized processing, prevent that the inside waste liquid of gas-liquid separation case 4 from getting into inside the vacuum pump advances pipe 5, lead to the vacuum pump to advance pipe 5 and block up.

In other embodiments, the upper surface of the secondary separation tank 22 is fixedly connected with an air pump inlet pipe 8 and a one-way air valve 15, one end of the air pump inlet pipe 8 is fixedly connected with an air pump 10, and an outlet pipe of the air pump 10 is fixedly connected with a waste gas treatment unit 11; through setting up air pump 10, can take out the inside waste gas of secondary separator box 22 from carrying out purification treatment to exhaust-gas treatment unit 11 is inside, discharge to the atmosphere again, reduce the pollution to external environment, through setting up one-way pneumatic valve 15, can make the outside air can only get into inside secondary separator box 22, the inside waste gas of secondary separator box 22 can't escape to the outside through one-way pneumatic valve 15, and then make the inside water of secondary separator box 22 and the mixed liquid of oxidant can get into deep well 12 bottom through water injection pipe 23, the rethread sieve hole 14 flows in by contaminated soil, the mixed liquid of water and oxidant takes place the degradation with the pollutant, in order to reach the mesh of restoreing the place.

In other embodiments, the lower surfaces of the deep well 12 and the shallow well 13 are fixedly connected with a well bottom sealing cover 24, the side walls of the deep well 12 and the shallow well 13 are provided with sieve holes 14, the sieve hole 14 on the left side is higher than the sieve hole 14 on the right side, and the lower ends of the siphon 3 and the water injection pipe 23 extend to the space between the sieve holes 14; through the arrangement of the bottom sealing cover 24, liquid can enter the siphon 3 through the sieve holes 14 or flow out from the water injection pipe 23, and through the arrangement of the two groups of sieve holes 14 with different heights, a horizontal flow field can be formed between the deep well 12 and the shallow well 13, and a vertical flow field can be formed at the same time, so that the repair range is expanded.

In other embodiments, the upper surface of the base 1 is fixedly connected with the flange plates 2 through bolts in a bilateral symmetry manner, the two flange plates 2 are respectively sleeved outside the siphon tube 3 and the water injection pipe 23, the upper surface of the right flange plate 2 is fixedly connected with the mounting frame 21, and the upper surface of the mounting frame 21 is fixedly connected with the secondary separation tank 22; through setting up ring flange 2, can play the support fixed action to siphon 3 and water injection pipe 23, prevent that siphon 3 and water injection pipe 23 from taking place the slope at shallow well 13 and deep well 12, lead to drawing water and water injection efficiency to descend, through setting up mounting bracket 21, can not influence ring flange 2's dismouting when carrying out fixed mounting to secondary separator box 22.

In other embodiments, the two mixing pipes 25 respectively penetrate through the side walls of the water storage tank 16 and the oxidant storage tank 9 near the top, and respectively extend to the inside of the water storage tank 16 and the oxidant storage tank 9 near the bottom; through setting up two mixture pipe 25 and being the type of falling L at the inside part of storage water tank 16 and oxidant holding vessel 9, can make inside water of storage water tank 16 and the chemical oxidant of oxidant holding vessel 9 can't get into vacuum pump exit tube 19 inside under no exogenic action, corrode vacuum pump exit tube 19 inner wall.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A multiphase extraction prosthetic devices of single pump hydrocone type for polluting ground is restoreed, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with a gas-liquid separation box (4), a water storage tank (16) and an oxidant storage tank (9), the outer side wall of the gas-liquid separation box (4) is fixedly connected with a siphon (3) and a vacuum pump inlet pipe (5), one end of the vacuum pump inlet pipe (5) is fixedly connected with a vacuum pump (20), the outer side wall of the vacuum pump (20) is fixedly connected with a vacuum pump outlet pipe (19), one end of the vacuum pump outlet pipe (19) is fixedly connected with a first three-way pipe (17) and a second three-way pipe (18) in sequence, the outer side walls of the first three-way pipe (17) and the second three-way pipe (18) are both fixedly connected with mixing pipes (25), one ends of the two mixing pipes (25) respectively penetrate through the side walls of the water storage tank (16) and the oxidant storage tank (9) and extend to the insides of the water storage tank (16) and the oxidant storage tank (9), the top of base (1) is equipped with secondary separator box (22), the inside of secondary separator box (22) is run through and extends to the lateral wall of secondary separator box (22) to the one end of vacuum pump exit tube (19).

2. The single-pump siphon-type multiphase extraction remediation device for contaminated site remediation of claim 1, wherein: the lower surface fixedly connected with deep well (12) and shallow well (13) of base (1), the lower surface fixedly connected with water injection pipe (23) of secondary separator box (22), the lower extreme of water injection pipe (23) extends to the bottom in deep well (12), the lower extreme of siphon (3) extends to the bottom in shallow well (13).

3. The single-pump siphon-type multiphase extraction remediation device for contaminated site remediation of claim 1, wherein: the upper surface fixedly connected with suction pump (6) of base (1), the pipe that advances of suction pump (6) runs through the lateral wall of gas-liquid separation case (4) and extends to the inside of gas-liquid separation case (4), and the exit tube fixedly connected with waste liquid treatment unit (7) of suction pump (6).

4. The single-pump siphon-type multiphase extraction remediation device for contaminated site remediation of claim 1, wherein: the upper surface fixed connection of secondary separator box (22) advances pipe (8) and one-way pneumatic valve (15) with the air pump, the one end fixedly connected with air pump (10) that the air pump advances pipe (8), the exit tube fixedly connected with exhaust-gas treatment unit (11) of air pump (10).

5. The single-pump siphon-type multiphase extraction remediation device for contaminated site remediation of claim 2, wherein: the equal fixedly connected with shaft bottom of lower surface of deep well (12) and shallow well (13) seals lid (24), and has all seted up sieve mesh (14) on the lateral wall of deep well (12) and shallow well (13), and left side sieve mesh (14) are higher than right side sieve mesh (14), the lower extreme of siphon (3) and water injection pipe (23) extends to between sieve mesh (14).

6. The single-pump siphon-type multiphase extraction remediation device for contaminated site remediation of claim 2, wherein: the upper surface of base (1) passes through bolt bilateral symmetry fixedly connected with ring flange (2), two ring flange (2) are established respectively and are established in siphon (3) and water injection pipe (23) the outside, the right side the upper surface of ring flange (2) is connected with mounting bracket (21) admittedly, the upper surface and secondary separator box (22) fixed connection of mounting bracket (21).

7. The single-pump siphon-type multiphase extraction remediation device for contaminated site remediation of claim 1, wherein: the two mixing pipes (25) penetrate through the positions, close to the tops, on the side walls of the water storage tank (16) and the oxidant storage tank (9) respectively and extend to the positions, close to the bottom, inside the water storage tank (16) and the oxidant storage tank (9) respectively.