Optimized pumping well structure for in-situ thermal desorption polluted groundwater remediation

Abstract

The optimized pumping well structure for in-situ thermal desorption polluted underground water remediation comprises a first well section single body and an anti-explosion air bag outer layer, a second well section single body is installed at the bottom of the first well section single body, a third well section single body is installed at the bottom of the second well section single body, and an anti-explosion air bag outer layer is installed at the bottom of the third well section single body. The first well section single body, the second well section single body and the third well section single body are each provided with a stainless steel supporting cylinder. By arranging the positioning sliding strips and the like, when the device is specifically used, the stone part of the pumping well structure is arranged to be the prefabricated stone building formwork which is prepared in advance and can be assembled, and when the device is specifically used, a user can use the sliding connection effect between the positioning sliding strips and the positioning sliding grooves to fix the prefabricated stone building formwork. The prefabricated stone building formwork is positioned and assembled in the stainless steel supporting cylinder, and compared with a common mode that workers enter a shaft for stone building and the like, the construction period is shortened, the safety performance is improved, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of in-situ thermal desorption contaminated groundwater remediation, in particular to an optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation. Background Art

[0002] In-situ thermal desorption technology is a technology used to remediate contaminated soil. It heats the contaminated soil or groundwater to volatilize or decompose pollutants, thereby achieving the purpose of cleaning the soil and water. In the process of in-situ thermal desorption of contaminated groundwater remediation, pumping well structures are often required. They can ensure that more water is pumped out, protect water quality, and prevent blockages. However, this type of pumping well structure still has some defects in actual use.

[0003] For example, a pumping well structure disclosed in application No. 202321210946.1 includes a first hole section extending into bedrock, a second hole section located in a soil-like weathered rock layer, and a third hole section located in a stable rock layer; the aperture of the first hole section is larger than the aperture of the second hole section, and the aperture of the second hole section is larger than the aperture of the third hole section; a wall protection pipe that fits tightly with the hole wall is provided in the first hole section, and a hole section connection protection structure extending into the second hole section is provided at one end of the wall protection pipe near the second hole section; a water filter pipe is provided in the second hole section, and the water filter pipe is limit-connected to the hole section connection protection structure; A sedimentation pipe extending into the third hole section is provided below the filter pipe. The utility model has a reasonable structure, is easy to construct, and has high construction efficiency. It provides adequate protection for the hole section and can effectively prevent the hole section from collapsing, thereby ensuring the overall integrity of the pumping well structure. However, it still has the problem of being difficult to locate and assemble in the corresponding area of the in-situ thermal desorption contaminated groundwater to be repaired, and the buffering and sealing effect of the pumping well structure is not good enough. Based on this, we propose a new optimized pumping well structure for in-situ thermal desorption contaminated groundwater repair to provide a more convenient installation method and better anti-collapse support effect. Utility Model Content

[0004] The purpose of the utility model is to provide an optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation, comprising a first well section monomer and an explosion-proof airbag outer layer, a second well section monomer being installed at the bottom of the first well section monomer, a third well section monomer being installed at the bottom of the second well section monomer, a stainless steel support tube being provided on the first well section monomer, the explosion-proof airbag outer layer being bonded to the outer wall of the stainless steel support tube, a reserved receiving port being provided at the top of the stainless steel support tube, an air guide hose being connected to the outer layer of the explosion-proof airbag being provided inside the reserved receiving port, and a manual air valve being installed on the air guide hose, prefabricated stone masonry templates being installed on both sides of the interior of the stainless steel support tube, positioning slides being evenly fixed on the prefabricated stone masonry templates, a positioning slide matching the positioning slide being provided on the stainless steel support tube, and the outer wall of the prefabricated stone masonry template being coated with a nano-ceramic anti-stick coating.

[0006] Preferably, supporting docking plates welded to the stainless steel support tube are fixed in sequence between the first well section monomer, the second well section monomer and the third well section monomer, and magnetic adsorption plug-ins are evenly arranged between adjacent supporting docking plates, so that the device achieves the advantages of being split and assembled.

[0007] Preferably, the supporting docking plate is a hollow structure, and a sealing rubber ring is vulcanized and connected to the supporting docking plate, so as to improve the sealing protection effect at the connection between the first well section monomer, the second well section monomer and the third well section monomer.

[0008] Preferably, fixed piles welded to the stainless steel support tube are evenly fixed to the bottom of the third well section monomer.

[0009] Preferably, the bottom of the fixing pile is evenly welded with barbed thorns.

[0010] Preferably, the bottom end of the third well section monomer is threadedly connected to a protective filter screen plate, so that it can achieve better filtering and protection function for the bottom of the device.

[0011] Preferably, the vertical center lines of the first well section monomer, the second well section monomer and the third well section monomer are all on the same vertical line.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The optimized pumping well structure for the in-situ thermal desorption contaminated groundwater remediation is optimized by installing a stainless steel support tube, etc. On the one hand, by setting the device as a vertical assembly structure consisting of a first well section monomer, a second well section monomer and a third well section monomer, it is convenient to install near the in-situ thermal desorption contaminated groundwater to be repaired. On the other hand, the user can hoist the corresponding stainless steel support tubes on the first well section monomer, the second well section monomer and the third well section monomer into the corresponding hole area, and then open the manual air valve on the air guide hose, and inflate the outer layer of the explosion-proof airbag fixed on the outer wall of the stainless steel support tube through the air guide hose and an additional air pump, so that it expands and presses against the muddy water in the well. This improves the sealing effect and buffer support effect of the device when it is installed in the corresponding area of the in-situ thermal desorption contaminated groundwater to be repaired, thereby improving the anti-collapse protection function of the device;

[0014] (2) The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation is provided with positioning slides, etc., so that when the device is used, the stone part of the pumping well structure is set as a prefabricated stone masonry template that can be assembled in advance. When used, the user can use the sliding connection between the positioning slides and the positioning slides to position and assemble the prefabricated stone masonry template into the interior of the stainless steel support tube. Compared with the common method of workers entering the well to lay stones, the construction period is shortened, the safety performance is improved, and the operation is convenient;

[0015] (3) The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation is equipped with a protective filter screen, etc., so that when the device is actually operated, fixed piles are evenly distributed at the bottom of the third well section unit, and barbs are evenly welded at the bottom of the fixed piles, so that a reinforcement structure is added to the bottom of the device and the firmness of the device during installation is improved. In addition, a protective filter screen is threadedly connected to the bottom end of the third well section unit, which can achieve a better filtering protection function for the bottom of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a first well section monomer viewed from above in the utility model;

[0018] Figure 3 This is a schematic diagram of the top view of the prefabricated stone formwork of the utility model;

[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1. First well section unit; 2. Second well section unit; 3. Magnetic adsorption plug; 4. Third well section unit; 5. Fixed pile; 6. Protective filter screen; 7. Sealing rubber ring; 8. Support docking plate; 9. Prefabricated stone formwork; 10. Stainless steel support tube; 11. Positioning slide; 12. Explosion-proof airbag outer layer; 13. Positioning slide; 14. Nano-ceramic anti-stick coating; 15. Reserved storage port; 16. Manual air valve; 17. Air guide hose; 18. Barbed barb. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The present invention provides an embodiment of an optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation, comprising a first well section monomer 1 and an explosion-proof airbag outer layer 12, a second well section monomer 2 being installed at the bottom of the first well section monomer 1, and a third well section monomer 4 being installed at the bottom of the second well section monomer 2;

[0023] A stainless steel support tube 10 is provided on each of the first well section monomer 1, the second well section monomer 2, and the third well section monomer 4. The explosion-proof airbag outer layer 12 is bonded to the outer wall of the stainless steel support tube 10. A reserved receiving opening 15 is provided on the top of the stainless steel support tube 10. An air guide hose 17 connected to the explosion-proof airbag outer layer 12 is provided inside the reserved receiving opening 15, and a manual air valve 16 is installed on the air guide hose 17.

[0024] When in use, it is convenient to install near the in-situ thermal desorption contaminated groundwater to be repaired. Specifically, the user can hoist the corresponding stainless steel support tubes 10 on the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4 into the corresponding hole area, and then open the manual air valve 16 on the air guide hose 17. Through the air guide hose 17 and an additional air pump, the interior of the explosion-proof airbag outer layer 12 fixed to the outer wall of the stainless steel support tube 10 is inflated to expand and press against the muddy water in the wellbore. This makes the device improve the sealing effect and buffer support effect when installed in the corresponding area of the in-situ thermal desorption contaminated groundwater to be repaired, thereby improving the anti-collapse protection function of the device;

[0025] Prefabricated stone formwork 9 is installed on both sides of the interior of the stainless steel support tube 10. Positioning slides 13 are evenly fixed on the prefabricated stone formwork 9. The stainless steel support tube 10 is provided with positioning slots 11 that match the positioning slides 13. The outer wall of the prefabricated stone formwork 9 is coated with a nano-ceramic anti-stick coating 14.

[0026] During use, the stone portion of the pumping well structure is set as a prefabricated stone masonry template 9 that can be assembled in advance. When in use, the user can use the sliding connection between the positioning slide 13 and the positioning slide 11 to position and assemble the prefabricated stone masonry template 9 into the interior of the stainless steel support tube 10. Compared with the common method of stone masonry construction by workers entering the well, the construction period is shortened and the safety performance is improved.

[0027] Supporting docking plates 8 welded to the stainless steel support tube 10 are fixed in sequence between the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4. Magnetic adsorption plugs 3 are evenly arranged between adjacent supporting docking plates 8, so that the device achieves the advantages of being split and assembling;

[0028] The supporting docking plate 8 is a hollow structure, and a sealing rubber ring 7 is vulcanized and connected to the supporting docking plate 8, so as to improve the sealing protection effect at the connection between the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4;

[0029] The bottom of the third well section unit 4 is evenly fixed with fixed piles 5 welded to the stainless steel support tube 10;

[0030] The bottom of the fixed pile 5 is evenly welded with barbed spikes 18;

[0031] When in use, by evenly distributing fixed piles 5 at the bottom of the third well section monomer 4, and evenly welding barbed spikes 18 at the bottom of the fixed piles 5, a reinforcement structure is added to the bottom of the device, which improves the firmness of the device during installation;

[0032] The bottom end of the third well section monomer 4 is threadedly connected to a protective filter screen 6, which can achieve better filtering and protection function for the bottom of the device;

[0033] The vertical center lines of the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4 are all on the same vertical line.

[0034] When the embodiment of the present application is in use: by setting the device as a whole as a vertical assembly structure composed of the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4, and setting the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4 as an assembled composite structure composed of a stainless steel support tube 10, an explosion-proof airbag outer layer 12 and a prefabricated stone masonry template 9, compared with a simple stone structure, on the one hand, it is convenient to install near the in-situ thermal desorption contaminated groundwater to be repaired. Specifically, the user can lift the corresponding stainless steel support tubes 10 on the first well section monomer 1, the second well section monomer 2 and the third well section monomer 4 into the corresponding hole area, and then open the manual air valve 16 on the air guide hose 17, and inflate the interior of the explosion-proof airbag outer layer 12 fixed on the outer wall of the stainless steel support tube 10 through the air guide hose 17 and an additional air pump, so that it expands and presses on the mud and water in the wellbore, which makes the device both improve and the in-situ thermal desorption contaminated groundwater to be repaired. The sealing effect and buffer support effect during installation in the corresponding area of contaminated groundwater are improved, thereby improving the anti-collapse protection function of the device. On the other hand, by setting the stone part of the pumping well structure as a prefabricated stone masonry template 9 that can be assembled in advance, when it is used, the user can use the sliding connection between the positioning slide 13 and the positioning slide groove 11 to position and assemble the prefabricated stone masonry template 9 into the interior of the stainless steel support tube 10. Compared with the common method of stone masonry construction by staff entering the well, the construction period is shortened, the safety performance is improved, and it is easy to promote. In addition, by evenly arranging fixed piles 5 at the bottom of the third well section monomer 4, and evenly welding barbs 18 at the bottom of the fixed piles 5, a reinforcement structure is added to the bottom of the device, which improves the firmness of the device during installation. Moreover, by threading the bottom end of the third well section monomer 4 with a protective filter screen 6, a better filtering protection function can be achieved for the bottom of the device.

Claims

1. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation is characterized by: The invention comprises a first well section monomer (1) and an explosion-proof airbag outer layer (12); a second well section monomer (2) is installed at the bottom of the first well section monomer (1); a third well section monomer (4) is installed at the bottom of the second well section monomer (2); a stainless steel support tube (10) is provided on each of the first well section monomer (1), the second well section monomer (2) and the third well section monomer (4); the explosion-proof airbag outer layer (12) is bonded to the outer side wall of the stainless steel support tube (10); a reserved receiving port (15) is provided on the top of the stainless steel support tube (10); the reserved receiving port (15) is provided on the top of the stainless steel support tube (10); An air guide hose (17) connected to the outer layer (12) of the explosion-proof airbag is provided inside the receiving port (15), and a manual air valve (16) is installed on the air guide hose (17). Prefabricated stone masonry templates (9) are installed on both sides of the interior of the stainless steel support tube (10), and positioning slides (13) are evenly fixed on the prefabricated stone masonry templates (9). A positioning slide groove (11) matching the positioning slide (13) is provided on the stainless steel support tube (10), and the outer wall of the prefabricated stone masonry template (9) is coated with a nano-ceramic anti-stick coating (14).

2. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation according to claim 1 is characterized by: Support docking plates (8) welded to the stainless steel support tube (10) are fixed in sequence between the first well section monomer (1), the second well section monomer (2) and the third well section monomer (4), and magnetic adsorption plugs (3) are evenly arranged between adjacent support docking plates (8).

3. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation according to claim 2 is characterized by: The supporting docking plate (8) is a hollow structure, and a sealing rubber ring (7) is vulcanized and connected to the supporting docking plate (8).

4. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation according to claim 1 is characterized by: Fixed piles (5) welded to the stainless steel support tube (10) are evenly fixed to the bottom of the third well section monomer (4).

5. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation according to claim 4 is characterized by: The bottom of the fixing pile (5) is evenly welded with barbed thorns (18).

6. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation according to claim 1 is characterized by: The bottom end of the third well section monomer (4) is threadedly connected to a protective filter screen plate (6).

7. The optimized pumping well structure for in-situ thermal desorption contaminated groundwater remediation according to claim 1 is characterized by: The vertical center lines of the first well section monomer (1), the second well section monomer (2) and the third well section monomer (4) are all on the same vertical line.

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