Intelligent in-situ chemical oxidation temperature control and safety protection integrated system

Abstract

This invention discloses an intelligent in-situ chemical oxidation temperature control and safety protection integrated system, including a monitoring well support structure, a wide-area distributed temperature monitoring mechanism and a cooling temperature control mechanism installed within the monitoring well support structure; the monitoring well support structure includes a monitoring well support pipe; the wide-area distributed temperature monitoring mechanism includes multiple temperature monitors installed on the monitoring well support pipe; the cooling temperature control mechanism includes a cooling temperature control exchange shell, and an indirect heat exchange pipe is installed inside the cooling temperature control exchange shell; during the in-situ chemical oxidation remediation of soil, multiple temperature monitors are inserted into the soil along the radial extension of the monitoring well support pipe, and each dispersed temperature monitor can monitor the temperature inside the soil over a wide area in order to adjust the injection strategy of the remediation agent.

Description

Technical Field

[0001] This invention relates to the field of soil remediation control technology, specifically to an intelligent in-situ chemical oxidation temperature control and safety protection integrated system. Background Technology

[0002] In-situ chemical oxidation and reduction remediation technology for soil involves injecting oxidants or reductants into contaminated areas of soil or groundwater. Through oxidation or reduction, pollutants in the soil or groundwater are transformed into non-toxic or relatively less toxic substances. Common oxidants include permanganate, hydrogen peroxide, Fenton's reagent, persulfate, and ozone. Common reductants include hydrogen sulfide, sodium dithionite, sodium bisulfite, ferrous sulfate, calcium polysulfide, ferrous iron, and ferrous oxide; these technologies are suitable for contaminated soil and groundwater. Chemical oxidation can treat most organic compounds, including petroleum hydrocarbons, BTEX (benzene, toluene, ethylbenzene, xylene), phenols, MTBE (methyl tert-butyl ether), chlorinated organic solvents, polycyclic aromatic hydrocarbons, and pesticides; chemical reduction can treat heavy metals (such as hexavalent chromium) and chlorinated organic compounds. The treatment is significantly affected by humic acid content, reducing metal content, soil permeability, and pH changes.

[0003] However, in the process of in-situ chemical oxidation remediation of soil, the existing technology is not comprehensive enough in detecting the temperature and pressure inside the soil. This may lead to excessively high local temperatures inside the soil, causing the remediation agent to fail. Inadequate monitoring of the internal soil pressure may lead to excessive pressure and cause accidental explosions. The existing technology also lacks measures to deal with possible accidental explosions and needs further improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent in-situ chemical oxidation temperature control and safety protection integrated system, which can perform more accurate temperature monitoring of the soil in-situ chemical oxidation remediation process over a wide area, and can prevent and handle unexpected high-pressure explosion situations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The intelligent in-situ chemical oxidation temperature control and safety protection integrated system includes a monitoring well support structure, a wide-area distributed temperature monitoring mechanism and a cooling temperature control mechanism installed in the monitoring well support structure, and a mobile explosion-proof mechanism used in conjunction with the wide-area distributed temperature monitoring mechanism.

[0007] The monitoring well support structure includes the monitoring well support pipe;

[0008] The wide-area distributed temperature monitoring system includes multiple temperature monitors installed on the support pipe of the monitoring well;

[0009] The cooling and temperature control mechanism includes a cooling and temperature control exchange shell fixed on the inner wall of the monitoring well support pipe, and an indirect heat exchange pipe is provided inside the cooling and temperature control exchange shell;

[0010] The indirect heat exchange tubes are arranged in a zigzag pattern within the cooling and temperature control heat exchange shell.

[0011] An indirect heat exchange input pipe and an indirect heat exchange output pipe are fixed on the outside of the cooling temperature control exchange shell. The two ends of the indirect heat exchange pipe are connected to the indirect heat exchange input pipe and the indirect heat exchange output pipe, respectively.

[0012] The mobile explosion-proof mechanism includes an explosion-proof ring shell, an explosion-proof top cover with an opening facing downward is fixed on the top of the explosion-proof ring shell, the explosion-proof top cover has multiple vertically extending explosion-proof pressure relief pipes, and multiple self-propelled drive wheels are provided on the outside of the explosion-proof ring shell.

[0013] Note: When abnormally high internal soil pressure is detected, in conjunction with the use of a mobile explosion-proof mechanism, efforts should be made to avoid injury to the remediation agent injection station and related personnel due to accidental explosion. The mobile explosion-proof mechanism should be moved to the location of the abnormal pressure and the shield-shaped structure composed of the explosion-proof ring shell and the explosion-proof top cover should be used to block the energy and debris generated by the accidental explosion.

[0014] Preferably, multiple segmental isolation plates are fixed inside the monitoring well support pipe. The segmental isolation plates divide the inside of the monitoring well support pipe into multiple well pipe receiving chambers. Segmental connecting pipes are fixed on the segmental isolation plates, and segmental connecting pipes have segmental connecting control valves.

[0015] Note: The monitoring well support pipe is divided into multiple well pipe accommodating chambers to prevent some of the repair agent from escaping through the monitor's external port due to pressure differential during the repair agent injection process.

[0016] Preferably, the logging support pipe is equipped with an emergency pressure relief mechanism, and the side wall of the logging support pipe has multiple emergency pressure relief through holes. The emergency pressure relief mechanism includes an emergency pressure relief rupture plate fixed in the emergency pressure relief through holes, and a directional explosive is fixed on one side of the emergency pressure relief rupture plate inside the logging support pipe.

[0017] Note: When abnormally high internal soil pressure is detected and emergency handling is required, each directional explosive will blast open the emergency pressure relief and fracture plate and open the segment connection control valves. The internal soil pressure can be relieved through the emergency pressure relief holes and segment connection pipes.

[0018] Preferably, the rigid chain push rod mechanism includes a chain drive housing fixedly installed on the inner wall of the logging support pipe and two chain storage housings connected to the side of the chain drive housing. The chain storage housing has a spirally extended chain storage groove, and a rigid single chain is slidably connected in the chain storage groove.

[0019] A single-chain drive wheel is rotatably connected inside the chain drive housing. A rigid chain guide tube connected to the inside is fixed on the outside of the chain drive housing. The rigid single chain drive extends out of the rigid chain guide tube, bypassing the single-chain drive wheel. The outer ends of the two rigid single chains are fixedly connected to the temperature monitoring protrusion column.

[0020] Note: Due to the limited diameter of the logging support pipe, the rigid chain push rod mechanism can significantly increase the drive stroke, allowing the temperature monitor to be driven and inserted into the soil further away from the logging support pipe.

[0021] Preferably, the monitor's extension hole is provided with an extension hole sealing mechanism, which includes a sealing mechanism support slide rail fixed on the inner wall of the monitoring well support pipe. The sealing mechanism support slide rail extends along a direction parallel to the axis of the monitoring well support pipe. A sealing mechanism support slider is slidably connected on the sealing mechanism support slide rail, and an extension hole sealing plate is fixed on the sealing mechanism support slider.

[0022] Explanation: The external hole sealing mechanism is used to control the sealing of the external hole of the monitor. The external hole sealing plate is driven to seal and fit at the external hole of the monitor, or the external hole sealing plate is moved away from the external hole of the monitor, so that the two sides of the external hole of the monitor are connected.

[0023] Preferably, the inner wall of the explosion-proof pressure relief pipe is connected to multiple explosion-proof buffer plates by a buffer plate fixing hinge, and a debris buffer net is fixed to the outer end of the explosion-proof pressure relief pipe.

[0024] Explanation: The impact energy generated by the explosion will be released through the various explosion-proof pressure relief pipes. Some of the explosion debris will pass through the explosion-proof pressure relief pipes and be intercepted by the debris buffer net.

[0025] Preferably, the explosion-proof ring shell is evenly divided into multiple explosion-proof ring shell parts along the plane where the axis of the explosion-proof ring shell is located, and adjacent explosion-proof ring shell parts are connected by ring shell fixing hinges.

[0026] The explosion-proof top cover is evenly divided into multiple explosion-proof top cover parts along the plane where the axis of the explosion-proof ring shell is located. Each explosion-proof top cover part is fixedly connected to each explosion-proof ring shell part.

[0027] Explanation: Multiple explosion-proof ring shells are composed of a ring-shaped explosion-proof ring shell. At one point, adjacent explosion-proof ring shell parts are freely separated. If there is a large obstruction on the ground at the pressure abnormality point that cannot be directly crossed, the explosion-proof ring shell parts can be driven away from each other from the free separation point, so that the obstruction can bypass the gap in the explosion-proof ring shell. Then, the explosion-proof ring shell parts at the free separation point are brought closer together, thus completing the migration of the explosion-proof ring shell.

[0028] Preferably, the self-propelled drive wheel is connected to the explosion-proof ring shell through a lifting and steering mechanism. The lifting and steering mechanism includes multiple lifting and fixing support cylinders fixed on the outside of the explosion-proof ring shell with their openings facing downwards. A lifting and sliding support cylinder is slidably connected inside the lifting and fixing support cylinder. A lifting drive rod for driving the lifting and sliding support cylinder to move is provided inside the lifting and fixing support cylinder.

[0029] A steering support ring is fixed at the lower end of the lifting sliding support cylinder. A steering support disc is rotatably fitted inside the steering support ring. The steering support disc is driven by a servo motor to rotate around the axis of the steering support ring through a worm gear transmission structure.

[0030] Each self-propelled drive wheel is fixed to the lower end of each steering support plate.

[0031] Note: The lifting and steering mechanism facilitates the overall lifting and lowering of the explosion-proof ring housing. When the explosion-proof ring housing is raised, it allows for rapid maneuvering. When the explosion-proof ring housing is lowered and close to the ground, it forms a good protective cover.

[0032] Preferably, an explosion-proof buffer mechanism is provided inside the explosion-proof ring shell. The explosion-proof buffer mechanism includes multiple buffer fixing springs fixed on the inner side wall of the explosion-proof ring shell, and an explosion-proof buffer support plate is fixed on the buffer fixing springs.

[0033] The explosion-proof buffer support plate has a buffer absorption layer fixed on its side, which is a polyethylene (PE) bulletproof plate with a thickness of 5-15cm.

[0034] Explanation: Each buffer absorption layer can block debris generated by the explosion and absorb the impact energy of the debris. Afterwards, it is easy to replace the damaged buffer absorption layer, avoiding the waste of resources caused by replacing the whole layer.

[0035] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects:

[0036] 1. The present invention has a reasonable structural design. In the process of in-situ chemical oxidation remediation of soil, a rigid chain push rod mechanism is used to drive the temperature monitor to be inserted into the soil along the radial extension of the monitoring well support pipe. Each dispersed temperature monitor can monitor the temperature inside the soil over a wide range so as to adjust the injection strategy of the remediation agent.

[0037] 2. The present invention is easy to operate. When an abnormally high internal soil pressure is detected and emergency treatment is required, each directional explosive will blast open the emergency pressure relief blasting plate. The emergency pressure relief blasting plate is easily broken along the blasting extension groove and opens the connecting control valves of each segment. The internal soil pressure can be relieved through each emergency pressure relief through hole and segment connecting pipe.

[0038] 3. In the technical solution of the present invention, when an abnormally high internal soil pressure is detected, which may lead to an unavoidable explosion, the mobile explosion-proof mechanism is quickly driven to the ground at the abnormal pressure point. The explosion-proof ring shell and explosion-proof top cover are used to cover the abnormal pressure point, blocking the energy and debris generated by the accidental explosion. This can minimize the risk of injury to the repair agent injection station and related personnel due to an accidental explosion. Attached Figure Description

[0039] Figure 1 This is the front view of the present invention;

[0040] Figure 2 yes Figure 1 Top view;

[0041] Figure 3 This is a top view of the emergency pressure relief mechanism of the present invention;

[0042] Figure 4 This is a schematic diagram of the structure of the emergency pressure relief and bursting plate of the present invention;

[0043] Figure 5 This is a top view of the external hole sealing mechanism of the present invention;

[0044] Figure 6 This is a structural schematic diagram of the rigid chain push rod mechanism of the present invention;

[0045] Figure 7 This is a schematic diagram of the temperature monitor of the present invention;

[0046] Figure 8 This is a schematic diagram of the cooling and temperature control exchange shell of the present invention;

[0047] Figure 9 This is a schematic diagram of the structure of the mobile explosion-proof mechanism of the present invention;

[0048] Figure 10 yes Figure 9 Top view;

[0049] Figure 11 This is a top view of the explosion-proof pressure relief pipe of the present invention.

[0050] In the diagram, 10-Monitoring well support mechanism, 11-Monitoring well support pipe, 111-Monitor extension hole, 110-Well casing accommodating chamber, 12-Segment isolation plate, 121-Segment connecting pipe, 122-Segment connecting control valve, 13-Emergency pressure relief mechanism, 130-Emergency pressure relief through hole, 131-Emergency pressure relief fracturing plate, 132-Directional explosive, 133-Fracturing extension groove, 14-Extension hole sealing mechanism, 141-Sealing mechanism 142-Sealing mechanism support slide rail, 143-Sealing plate with external extension hole, 20-Wide-area distributed temperature monitoring mechanism, 21-Rigid chain push rod mechanism, 211-Chain drive housing, 212-Chain storage housing, 213-Chain storage groove, 214-Single chain drive wheel, 215-Rigid chain guide tube, 210-Rigid single chain, 22-Temperature monitor, 221-Temperature monitoring protrusion column, 222-Transmission 223 - Temperature sensor; 30 - Cooling and temperature control mechanism; 31 - Cooling and temperature control exchange shell; 32 - Indirect heat exchange pipe; 321 - Indirect heat exchange input pipe; 322 - Indirect heat exchange output pipe; 40 - Mobile explosion-proof mechanism; 41 - Explosion-proof ring shell; 410 - Explosion-proof ring shell split body; 411 - Ring shell fixing hinge; 42 - Explosion-proof top cover; 420 - Explosion-proof top cover split body; 43 - Explosion-proof pressure relief pipe; 431 - Buffer plate fixing hinge; 432 - Explosion-proof buffer plate; 433 - Debris buffer net; 44 - Self-propelled drive wheel; 45 - Lifting and steering mechanism; 451 - Lifting fixed support cylinder; 452 - Lifting sliding support cylinder; 453 - Lifting drive rod; 454 - Steering support ring; 455 - Steering support disc; 46 - Explosion-proof buffer mechanism; 461 - Buffer fixing spring; 462 - Explosion-proof buffer support plate; 463 - Buffer absorption layer. Detailed Implementation

[0051] The following is combined Figures 1-11 The present invention will be described in detail below. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of the respective main view or structural schematic diagram.

[0052] Example 1:

[0053] Intelligent in-situ chemical oxidation temperature control and safety protection integrated system, such as Figure 1 , Figure 9 As shown, it includes a monitoring well support structure 10, a wide-area distributed temperature monitoring mechanism 20 and a cooling temperature control mechanism 30 installed in the monitoring well support structure 10, and a mobile explosion-proof mechanism 40 used in conjunction with the wide-area distributed temperature monitoring mechanism 20.

[0054] The monitoring well support structure includes the monitoring well support pipe 11;

[0055] like Figure 1As shown, the monitoring well support pipe 11 has multiple monitor extension holes 111 that are interconnected inside and out on the side wall. The wide-area distributed temperature monitoring mechanism 20 includes multiple temperature monitors 22 connected to the monitor extension holes 111 by a rigid chain push rod mechanism 21.

[0056] like Figure 7 As shown, the temperature monitor 22 includes a temperature monitoring protrusion 221 that slides in the monitor extension hole 111. The side of the temperature monitoring protrusion 221 has a plurality of sensor receiving holes 222, and a temperature sensor 223 is fixed in the sensor receiving hole 222.

[0057] like Figure 2 As shown, the cooling temperature control mechanism 30 includes a cooling temperature control exchange shell 31 fixed on the inner wall of the monitoring well support pipe 11, and an indirect heat exchange pipe 32 is provided inside the cooling temperature control exchange shell 31.

[0058] like Figure 8 As shown, the indirect heat exchange tubes 32 are arranged in a zigzag pattern within the cooling and temperature control exchange shell 31.

[0059] like Figure 8 As shown, an indirect heat exchange input pipe 321 and an indirect heat exchange output pipe 322 are fixed on the outside of the cooling temperature control exchange shell 31. The two ends of the indirect heat exchange pipe 32 are connected to the indirect heat exchange input pipe 321 and the indirect heat exchange output pipe 322, respectively.

[0060] The cooling temperature control exchange housing 31 is filled with coolant, which is automotive coolant with a boiling point of 108℃ and a freezing point of -40℃.

[0061] like Figure 6 As shown, the rigid chain push rod mechanism 21 includes a chain drive housing 211 fixedly installed on the inner wall of the logging support pipe 11 and two chain storage housings 212 connected to the side of the chain drive housing 211. The chain storage housing 212 has a spirally extended chain storage groove 213, and a rigid single chain 210 is slidably connected in the chain storage groove 213.

[0062] A single chain drive wheel 214 is rotatably connected inside the chain drive housing 211. A rigid chain guide tube 215, which is connected to the inside of the chain drive housing 211, is fixed on the outside of the chain drive housing 211. A rigid single chain 210 passes around the single chain drive wheel 214 and extends out from the rigid chain guide tube 215. The outer ends of the two rigid single chains 210 are fixedly connected to the temperature monitoring protrusion column 221.

[0063] like Figure 9As shown, the mobile explosion-proof mechanism 40 includes an explosion-proof ring shell 41, an explosion-proof top cover 42 with an opening facing downward is fixed on the top of the explosion-proof ring shell 41, the explosion-proof top cover 42 has a plurality of vertically extending explosion-proof pressure relief pipes 43, and a plurality of self-propelled drive wheels 44 are provided on the outer side of the explosion-proof ring shell 41, the self-propelled drive wheels 44 are driven to rotate by a hub motor.

[0064] like Figure 11 As shown, the inner wall of the explosion-proof pressure relief pipe 43 is connected to multiple explosion-proof buffer plates 432 by a buffer plate fixing hinge 431, and a debris buffer net bag 433 is fixed to the outer end of the explosion-proof pressure relief pipe 43.

[0065] like Figure 10 As shown, the explosion-proof ring shell 41 is evenly divided into multiple explosion-proof ring shell parts 410 along the plane where the axis of the explosion-proof ring shell 41 is located. Adjacent explosion-proof ring shell parts 410 are connected by ring shell fixing hinges 411.

[0066] like Figure 9 As shown, the explosion-proof top cover 42 is evenly divided into multiple explosion-proof top cover parts 420 along the plane where the axis of the explosion-proof ring shell 41 is located. Each explosion-proof top cover part 420 is fixedly connected to each explosion-proof ring shell part 410.

[0067] like Figure 9 As shown, the self-propelled drive wheel 44 is connected to the explosion-proof ring shell 41 through the lifting and steering mechanism 45. The lifting and steering mechanism 45 includes multiple lifting and fixing support cylinders 451 fixed on the outside of the explosion-proof ring shell 41 with their openings facing downwards. Each lifting and fixing support cylinder 451 is fixed on the outside of each explosion-proof ring shell split body 410. A lifting and sliding support cylinder 452 is slidably connected inside the lifting and fixing support cylinder 451. A lifting drive rod 453 for driving the lifting and sliding support cylinder 452 to move is provided inside the lifting and fixing support cylinder 451.

[0068] The lifting drive rod 453 is an electrically controlled telescopic rod. The outer end of the lifting drive rod 453 is fixedly connected to the top of the inner part of the lifting fixed support cylinder 451, and the inner end of the lifting drive rod 453 is fixedly connected to the lifting sliding support cylinder 452.

[0069] The lower end of the lifting sliding support cylinder 452 is fixed with a steering support ring 454, and a steering support disc 455 is rotatably fitted inside the steering support ring 454. The steering support disc 455 is driven by a servo motor to rotate around the axis of the steering support ring 454 through a worm gear transmission structure.

[0070] Each self-propelled drive wheel 44 is fixed to the lower end of each steering support plate 455.

[0071] like Figure 10As shown, the explosion-proof ring shell 41 is provided with an explosion-proof buffer mechanism 46. The explosion-proof buffer mechanism 46 includes multiple buffer fixing springs 461 fixed on the inner side wall of the explosion-proof ring shell 41. Explosion-proof buffer support plates 462 are fixed on the buffer fixing springs 461. Each explosion-proof buffer support plate 462 is fixed on the inner side of the explosion-proof ring shell 41 in a hexagonal close-packed manner.

[0072] The explosion-proof buffer support plate 462 has a buffer absorption layer 463 fixed on its side. The buffer absorption layer 463 is a 15cm thick polyethylene (PE) bulletproof plate.

[0073] Example 2:

[0074] Based on Example 1, such as Figure 1 As shown, multiple segmental isolation plates 12 are fixed inside the monitoring well support pipe 11. The segmental isolation plates 12 divide the inside of the monitoring well support pipe 11 into multiple well pipe receiving chambers 110. A segmental connecting pipe 121 is fixed on the segmental isolation plate 12, and a segmental connecting control valve 122 is provided on the segmental connecting pipe 121.

[0075] Example 3:

[0076] Based on Example 2, such as Figure 1 As shown, the logging support pipe 11 is equipped with an emergency pressure relief mechanism 13, such as... Figure 3 As shown, the logging support pipe 11 has multiple emergency pressure relief through holes 130 on its side wall. The emergency pressure relief mechanism 13 includes an emergency pressure relief rupture plate 131 fixed in the emergency pressure relief through hole 130. A directional explosive 132 is fixed on one side of the emergency pressure relief rupture plate 131 inside the logging support pipe 11.

[0077] like Figure 4 As shown, the emergency pressure relief and burst plate 131 has multiple interwoven burst extension grooves 133 on both sides.

[0078] Example 4:

[0079] Based on Example 3, such as Figure 5 As shown, an extension hole sealing mechanism 14 is provided at the extension hole 111 of the monitor. The extension hole sealing mechanism 14 includes a sealing mechanism support slide rail 141 fixed on the inner wall of the monitoring well support pipe 11. The sealing mechanism support slide rail 141 extends along the axis parallel to the monitoring well support pipe 11. A sealing mechanism support slider 142 is slidably connected on the sealing mechanism support slide rail 141. The sealing mechanism support slider 142 is driven by a servo motor to move along the sealing mechanism support slide rail 141. An extension hole sealing plate 143 is fixed on the sealing mechanism support slider 142.

[0080] Example 5:

[0081] The difference from Example 4 is that the buffer absorption layer 463 is a 5cm thick polyethylene (PE) bulletproof plate.

[0082] Example 6:

[0083] The difference from Example 4 is that the buffer absorption layer 463 is a 10cm thick polyethylene (PE) bulletproof plate.

[0084] In practical applications, multiple monitoring shafts are drilled in the in-situ chemical oxidation remediation area of ​​the soil, and the monitoring shaft support pipe 11 of the present invention is fixedly placed into the drilled monitoring shafts.

[0085] The rigid chain push rod mechanism 21 drives the temperature monitor 22 to extend out of the monitor extension hole 111, so that the temperature monitor 22 is inserted into the soil along the radial extension of the monitoring well support pipe 11. During the in-situ chemical oxidation remediation of the soil, the temperature inside the soil is monitored so as to adjust the injection strategy of the remediation agent.

[0086] By replacing some of the temperature sensors 223 in the sensor housing hole 222 with pressure sensors, it is possible to monitor the internal pressure of the soil during the in-situ chemical oxidation remediation process, thus preventing excessive pressure from causing an explosion.

[0087] The external hole sealing mechanism 14 is used to control the sealing of the external hole 111 of the monitor. The servo motor drives the sealing mechanism support slider 142 to move along the sealing mechanism support slide rail 141. The sealing mechanism support slider 142 drives the external hole sealing plate 143 to move together, so that the external hole sealing plate 143 is sealed and fitted at the external hole 111 of the monitor, or the external hole sealing plate 143 is moved away from the external hole 111 of the monitor, thereby making the two sides of the external hole 111 of the monitor open to each other.

[0088] In the rigid chain push rod mechanism 21, the chain drive housing 211 has two single chain drive wheels 214, which drive two rigid single chains 210 respectively. The two rigid single chains 210 interlock with each other under the drive of the single chain drive wheels 214 to form a rigid chain, which extends or retracts along the rigid chain guide tube 215. This is used to drive the temperature monitor 22 to extend into the soil, or to pull the temperature monitor 22 back into the monitoring well support tube 11.

[0089] When the soil temperature is detected to be too high and cooling is required, the cooling temperature control exchange shell 31 is filled with coolant. The coolant is automotive coolant with a boiling point of 108°C and a freezing point of -40°C. Cool water is circulated into the indirect heat exchange pipe 32 through the indirect heat exchange input pipe 321 using a delivery pump. The heat in the soil is exchanged with the coolant in the cooling temperature control exchange shell 31, and the heat of the coolant is transferred out by the circulating cool water in the indirect heat exchange pipe 32, thereby achieving cooling of the soil.

[0090] When an abnormally high internal soil pressure is detected and emergency handling is required, each directional explosive 132 will blast open the emergency pressure relief rupture plate 131. The emergency pressure relief rupture plate 131 is easily broken along the rupture extension groove 133 and opens each segment connecting control valve 122. The internal soil pressure can be relieved through each emergency pressure relief through hole 130 and segment connecting pipe 121.

[0091] When an abnormally high internal soil pressure is detected, the mobile explosion-proof mechanism 40 is used in conjunction with the mobile explosion-proof mechanism 40 to avoid injury to the remediation agent injection station and related personnel due to an accidental explosion. The mobile explosion-proof mechanism 40 is moved to the location of the abnormal pressure and the shield-shaped structure composed of the explosion-proof ring shell 41 and the explosion-proof top cover 42 is used to block the energy and debris generated by the accidental explosion.

[0092] The inner rod of the lifting drive rod 453 extends out and drives the lifting sliding support cylinder 452 to move down along the axis of the lifting fixed support cylinder 451. The lifting sliding support cylinder 452 drives the self-propelled drive wheel 44 to move down together so that the self-propelled drive wheel 44 is supported on the ground. After the self-propelled drive wheel 44 is supported on the ground, the lifting fixed support cylinder 451 moves up relative to the ground, driving the explosion-proof ring shell 41 to move up and off the ground together, so that each self-propelled drive wheel 44 can work together to drive the explosion-proof ring shell 41 to move as a whole.

[0093] A servo motor is installed inside the steering support ring 454. The servo motor drives the steering support disk 455 to rotate around the axis of the steering support ring 454 through a worm gear transmission structure, thereby changing the travel direction of the self-propelled drive wheel 44.

[0094] Multiple explosion-proof ring shell parts 410 form a ring-shaped explosion-proof ring shell 41. One of the adjacent explosion-proof ring shell parts 410 are in a free-separated state. If there is a large obstruction on the ground at the pressure abnormality point that cannot be directly crossed, the explosion-proof ring shell parts 410 can be driven away from each other from the free separation point, so that the obstruction can bypass the gap of the explosion-proof ring shell 41. Then, the explosion-proof ring shell parts 410 at the free separation point are brought closer to each other, and the migration of the explosion-proof ring shell 41 can be completed.

[0095] When an accidental explosion is unavoidable, the explosion-proof ring shell 41 and the explosion-proof top cover 42 cover the abnormal pressure point. The impact energy generated by the explosion will be released from each explosion-proof pressure relief pipe 43. The debris generated by the explosion will be blocked and absorbed by each buffer absorption layer 463 in the explosion-proof buffer mechanism 46. Some of the explosion debris will pass through the explosion-proof pressure relief pipe 43 and be intercepted by the debris buffer net 433. Afterwards, only the damaged buffer absorption layer 463 needs to be replaced.

Claims

1. An intelligent in-situ chemical oxidation temperature control and safety protection integrated system, characterized in that, It includes a monitoring well support structure (10), a wide-area distributed temperature monitoring mechanism (20) and a cooling temperature control mechanism (30) installed in the monitoring well support structure (10), and a mobile explosion-proof mechanism (40) used in conjunction with the wide-area distributed temperature monitoring mechanism (20). The monitoring well support mechanism includes a monitoring well support pipe (11), and the monitoring well support pipe (11) has multiple monitor extension holes (111) that are interconnected inside and outside. Multiple segmental isolation plates (12) are fixed inside the monitoring well support pipe (11). The segmental isolation plates (12) divide the inside of the monitoring well support pipe (11) into multiple well pipe receiving chambers (110). A segmental connecting pipe (121) is fixed on the segmental isolation plate (12). A segmental connecting control valve (122) is provided on the segmental connecting pipe (121). The logging support pipe (11) is provided with an emergency pressure relief mechanism (13). The logging support pipe (11) has multiple emergency pressure relief through holes (130) on its side wall. The emergency pressure relief mechanism (13) includes an emergency pressure relief rupture plate (131) fixed in the emergency pressure relief through hole (130). A directional explosive (132) is fixed on one side of the emergency pressure relief rupture plate (131) inside the logging support pipe (11). The wide-area distributed temperature monitoring mechanism (20) includes multiple temperature monitors (22) connected to the monitor extension hole (111) via a rigid chain push rod mechanism (21). The temperature monitor (22) includes a temperature monitoring protrusion (221) that slides in the monitor extension hole (111); The rigid chain push rod mechanism (21) includes a chain drive housing (211) fixedly installed on the inner wall of the logging support pipe (11) and two chain storage housings (212) connected to the side of the chain drive housing (211). The chain storage housing (212) has a spirally extending chain storage groove (213), and a rigid single chain (210) is slidably connected in the chain storage groove (213). A single chain drive wheel (214) is rotatably connected inside the chain drive housing (211). A rigid chain guide tube (215) communicating with the inside is fixed on the outside of the chain drive housing (211). The rigid single chain (210) passes around the single chain drive wheel (214) and extends out from the rigid chain guide tube (215). The outer ends of the two rigid single chains (210) are fixedly connected to the temperature monitoring protrusion column (221). The cooling temperature control mechanism (30) includes a cooling temperature control exchange shell (31) fixed on the inner side wall of the monitoring well support pipe (11), and an indirect heat exchange pipe (32) is provided inside the cooling temperature control exchange shell (31). The indirect heat exchange tube (32) is arranged in a zigzag pattern within the cooling and temperature control exchange shell (31); The cooling temperature control exchange shell (31) is fixed with an indirect heat exchange input pipe (321) and an indirect heat exchange output pipe (322) on the outside. The two ends of the indirect heat exchange pipe (32) are respectively connected to the indirect heat exchange input pipe (321) and the indirect heat exchange output pipe (322). The mobile explosion-proof mechanism (40) includes an explosion-proof ring shell (41), and an explosion-proof top cover (42) with an opening facing downward is fixed on the top of the explosion-proof ring shell (41). The explosion-proof top cover (42) has multiple vertically extending explosion-proof pressure relief pipes (43), and multiple self-propelled drive wheels (44) are provided on the outside of the explosion-proof ring shell (41).

2. The intelligent in-situ chemical oxidation temperature control and safety protection integrated system according to claim 1, characterized in that, An extension hole sealing mechanism (14) is provided at the extension hole (111) of the monitor. The extension hole sealing mechanism (14) includes a sealing mechanism support slide rail (141) fixed on the inner side wall of the monitoring well support pipe (11). The sealing mechanism support slide rail (141) extends along the axis parallel to the monitoring well support pipe (11). A sealing mechanism support slider (142) is slidably connected on the sealing mechanism support slide rail (141). An extension hole sealing plate (143) is fixed on the sealing mechanism support slider (142).

3. The intelligent in-situ chemical oxidation temperature control and safety protection integrated system according to claim 1, characterized in that, The inner wall of the explosion-proof pressure relief pipe (43) is connected to multiple explosion-proof buffer plates (432) by a buffer plate fixing hinge (431), and a debris buffer net bag (433) is fixed at the outer end of the explosion-proof pressure relief pipe (43).

4. The intelligent in-situ chemical oxidation temperature control and safety protection integrated system according to claim 1, characterized in that, The explosion-proof ring shell (41) is evenly divided into multiple explosion-proof ring shell parts (410) along the plane where the axis of the explosion-proof ring shell (41) is located. Two adjacent explosion-proof ring shell parts (410) are connected by ring shell fixing hinges (411). The explosion-proof top cover (42) is evenly divided into multiple explosion-proof top cover parts (420) along the plane where the axis of the explosion-proof ring shell (41) is located. Each explosion-proof top cover part (420) is fixedly connected to each explosion-proof ring shell part (410) in a one-to-one correspondence.

5. The intelligent in-situ chemical oxidation temperature control and safety protection integrated system according to claim 1, characterized in that, The self-propelled drive wheel (44) is connected to the explosion-proof ring shell (41) through a lifting and steering mechanism (45). The lifting and steering mechanism (45) includes a plurality of lifting and fixing support cylinders (451) fixed on the outside of the explosion-proof ring shell (41) with their openings facing downwards. A lifting and sliding support cylinder (452) is slidably connected inside the lifting and fixing support cylinder (451). A lifting drive rod (453) for driving the lifting and sliding support cylinder (452) to move is provided inside the lifting and fixing support cylinder (451). The lower end of the lifting sliding support cylinder (452) is fixed with a steering support ring (454), and a steering support disc (455) is rotatably fitted inside the steering support ring (454). The steering support disc (455) is driven by a servo motor to rotate around the axis of the steering support ring (454) through a worm gear transmission structure. Each of the self-propelled drive wheels (44) is fixed to the lower end of each of the steering support discs (455).

6. The intelligent in-situ chemical oxidation temperature control and safety protection integrated system according to claim 1, characterized in that, The explosion-proof ring shell (41) is provided with an explosion-proof buffer mechanism (46), which includes multiple buffer fixing springs (461) fixed on the inner side wall of the explosion-proof ring shell (41), and an explosion-proof buffer support plate (462) is fixed on the buffer fixing springs (461). The explosion-proof buffer support plate (462) has a buffer absorption layer (463) fixed on its side. The buffer absorption layer (463) is a polyethylene (PE) bulletproof plate with a thickness of 5~15cm.

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