Marine anti-blocking circulating well point drainage device and anti-blocking circulating replacement method

Abstract

The invention relates to the technical field of geotechnical engineering and ship environmental protection, in particular to a marine anti-blocking circulating well point drainage device and an anti-blocking circulating replacement method.The marine anti-blocking circulating well point drainage device comprises an intelligent dewatering well, the intelligent dewatering well comprises an automatic water pumping pipe, and the outer wall of the automatic water pumping pipe is sleeved with a detachable metal bag net; the second wall body is arranged on the outer wall of the intelligent dewatering well, the end of the intelligent dewatering well penetrates through the mud separation layer and is provided with a negative pressure suction interface, and a first wall body is further arranged on the outer wall of the second wall body; by combining a high-precision pressure sensor array on the inner layer of the automatic water pumping pipe, the pressure gradient change can be monitored in real time, frequent shutdown is reduced, and the drainage continuity and the transportation efficiency are improved; the blocked detachable metal bag net can be rapidly pulled out by rotating the claw hooks and replaced with a standby bag net, the whole dewatering well structure does not need to be disassembled, and the problem that a traditional filter net is time-consuming to replace is solved.

Description

Technical Field

[0001] This invention relates to the fields of geotechnical engineering and marine environmental protection technology, and in particular to a marine anti-clogging circulating well point drainage device and an anti-clogging circulating replacement method. Background Technology

[0002] When ships transport viscous materials such as mud with high water content, the high water content of the mud causes the ship to sway during operation, increasing the risk of capsizing. At the same time, some of the viscous materials may splash into rivers, and some toxic substances may damage the ecological environment.

[0003] Currently, the industry uses traditional drainage devices for transporting viscous materials such as mud with high water content by ship. However, traditional pumping pipelines lack intelligent monitoring and adaptive adjustment capabilities. Fibers and colloidal particles in the mud can easily cause pipeline blockage. According to statistics, conventional drainage systems need to be shut down for dredging every 72 hours on average, which seriously affects transportation efficiency. Replacing drainage devices equipped with filters requires disassembling the entire dewatering well structure, with a single maintenance taking more than 4 hours. Moreover, manual operation can easily cause secondary pollution. Conventional water treatment processes have poor adaptability to the vibration environment of ships, resulting in high concentrations of suspended solids in the effluent. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a marine anti-blocking circulating well point drainage device, which includes an intelligent dewatering well, wherein the intelligent dewatering well includes an automatic pumping pipe and the outer wall of the automatic pumping pipe is fitted with a detachable metal mesh, the inner wall of the detachable metal mesh is filled with filter sand filler and the outer wall is provided with a perforated sleeve. A second wall is provided on the outer wall of the intelligent dewatering well. The end of the intelligent dewatering well penetrates the mud barrier layer and is provided with a negative pressure suction interface. A first wall is also provided on the outer wall of the second wall.

[0006] As a preferred embodiment of the marine anti-blocking circulating well point drainage device of the present invention, a water storage tank is provided on the outer wall of the first wall, a drainage pipe is provided at the end of the water storage tank and the end of the drainage pipe is movably connected to the automatic pumping pipe, and the end of the drainage pipe is connected to the sedimentation and filtration tank provided on the outer wall of the first wall.

[0007] As a preferred embodiment of the marine anti-blocking circulating well point drainage device of the present invention, wherein: a rotating lifting replacement mechanism is provided at the end of the first wall body, the rotating lifting replacement mechanism is provided with a rotating hook and the end of the rotating hook is connected to a bayonet provided at the end of the detachable metal net.

[0008] As a preferred embodiment of the marine anti-blocking circulating well point drainage device of the present invention, the first wall body is provided with a high-pressure cleaning chamber on its outer wall and a high-pressure water jet nozzle array is provided on the inner wall of the high-pressure cleaning chamber. The first wall body is also provided with a water pumping pipe. The end of the water pumping pipe is connected to the sedimentation and filtration chamber, and the other end of the water pumping pipe is connected to a drainage chamber.

[0009] A preferred embodiment of an anti-clogging circulation replacement method, applied to the aforementioned marine anti-clogging circulation wellpoint drainage device, includes the following steps: a. Upon detecting a blockage, the intelligent dewatering well stops pumping water, and the top automated pumping pipe and drainage pipe rotate and separate, with the drainage pipe rotating out of its proper position; b. The idle rotary hook rotates to the top of the blocked intelligent dewatering well and connects with the detachable metal mesh hook; c. The blocked removable metal mesh is pulled out by hydraulic drive, as well as the removable metal mesh that is idle inside the high-pressure cleaning chamber. d. Rotation replacement is performed. The idle detachable metal net is pressed into the intelligent dewatering well, and the blocked detachable metal net is sent into the high-pressure cleaning chamber for rotation cleaning.

[0010] The beneficial effects of this invention are as follows: By combining the detachable metal mesh and perforated sleeve of the intelligent dewatering well with a high-precision pressure sensor array inside the automated pumping pipe, pressure gradient changes can be monitored in real time. Based on the pressure fluctuation threshold, blockage can be accurately identified and warnings issued, reducing frequent shutdowns of traditional drainage systems caused by blockages from fibrous materials and colloidal particles. This improves drainage continuity and transportation efficiency. Furthermore, relying on the synergistic effect of the rotating lifting replacement mechanism and the high-pressure cleaning chamber, the blocked detachable metal mesh can be quickly pulled out and replaced with a spare mesh using a rotating hook, without disassembling the entire dewatering well. The structure solves the problem of time-consuming replacement of traditional filter screens; at the same time, the clogged filter screen can be recycled after being cleaned by rotating high-pressure water jet nozzles in the high-pressure cleaning chamber, reducing manual operation and the risk of secondary pollution, and lowering maintenance costs. The negative pressure suction interface at the bottom of the intelligent dewatering well can initially separate cement and prevent large solid blocks from clogging. The solid-liquid separation water treatment system, through the coordinated treatment of water storage tank, sedimentation and filtration tank, drainage tank and water pumping pipe, is adapted to the vibration environment of ships, effectively reduces the concentration of suspended solids in the effluent, ensures that the treated water meets the discharge standards, and reduces pollution to river water resources and the ecological environment. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of a marine anti-blocking circulating well point drainage device according to the present invention. Figure 2 This is a schematic diagram of the structure of the water storage tank and the sedimentation and filtration tank in this invention; Figure 3 This is a schematic diagram showing the positional relationship of the water pumping conduits in this invention; Figure 4 This is a schematic diagram of the intelligent precipitation well in this invention; Figure 5 This is a schematic diagram of the rotary lifting replacement mechanism in this invention; Figure 6 This is a schematic diagram showing the positional relationship between the detachable metal mesh and the automated pumping pipe in this invention; Figure 7 This is a schematic diagram of the perforated sleeve in this invention.

[0013] Reference numerals: 101, Intelligent dewatering well; 102, Negative pressure suction interface; 103, Second wall; 104, First wall; 105, Demountable metal mesh; 106, Automated pumping pipe; 107, Drainage conduit; 108, Rotary lifting and replacement mechanism; 1081, Rotary grab hook; 109, High-pressure water jet nozzle; 110, Pumping conduit; 111, Perforated sleeve; 112, Water storage tank; 113, Sedimentation and filtration tank. Detailed Implementation

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0016] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0017] Reference Figures 1-7 This is the first embodiment of the present invention, which provides a marine anti-clogging circulating well point drainage device.

[0018] Specifically, it includes an intelligent dewatering well 101, which includes an automated pumping pipe 106 and a detachable metal mesh 105 on the outer wall of the automated pumping pipe 106. The inner wall of the detachable metal mesh 105 is filled with filter sand and soil filler and the outer wall is provided with a perforated sleeve 111. A second wall 103 is provided on the outer wall of the intelligent dewatering well 101. The end of the intelligent dewatering well 101 penetrates the mud barrier layer and is provided with a negative pressure suction interface 102. A first wall 104 is also provided on the outer wall of the second wall 103.

[0019] Among them, multiple detachable metal mesh arrays 105 are installed on the outside of the automated pumping pipe 106. The detachable metal mesh 105 is made of stainless steel woven mesh with a bayonet at the top. High-precision pressure sensors are configured in the inner layer of the automated pumping pipe 106. Through the high-precision pressure sensor array configured in the inner layer of the automated pumping pipe 106, the pressure gradient change in the automated pumping pipe 106 is monitored in real time. The pumping rate is dynamically adjusted through a PID algorithm. Based on the pressure fluctuation threshold, the filter sand and filler inside the detachable metal mesh 105 is monitored for blockage. The signal is transmitted to the shipborne Internet of Things platform to build a blockage early warning model system.

[0020] The second wall 103 and the first wall 104 are a whole. The array of intelligent dewatering wells 101 is installed on the inner side of the second wall 103. The bottom of the intelligent dewatering wells 101 penetrates the mud-blocking layer to form a negative pressure suction interface 102. The negative pressure suction interface 102 is used for preliminary cement separation to prevent large solids from causing blockage of the automatic pumping pipe 106.

[0021] A water storage tank 112 is provided on the outer wall of the first wall 104. A drain pipe 107 is provided at the end of the water storage tank 112 and the end of the drain pipe 107 is movably connected to the automatic water pumping pipe 106. The end of the drain pipe 107 is connected to the sedimentation and filtration tank 113 provided on the outer wall of the first wall 104.

[0022] The water storage tank 112 is located at the top of the first wall 104. The drain pipe 107 is installed above the water storage tank 112, with its end extending into the interior of the water storage tank 112. The other end of the drain pipe 107 is connected to the top of the automatic water pumping pipe 106 via a self-rotating knob, and the connection can be easily disassembled. The drain pipe 107 passes through the interior of the water storage tank 112 and communicates with the sedimentation and filtration chamber 113 at the bottom.

[0023] The first wall 104 is provided with a rotary lifting replacement mechanism 108 at its end. The rotary lifting replacement mechanism 108 is provided with a rotary hook 1081 and the end of the rotary hook 1081 is connected to the bayonet provided at the end of the detachable metal net 105.

[0024] The rotary lifting replacement mechanism 108 is installed at the top of the first wall 104. It is hydraulically driven to lift the lifting rod. The rotary hook 1081 at the top locks the top of the detachable metal mesh 105, pulling out the detachable metal mesh 105 and the filter sand filling inside. At the same time, it replaces the spare detachable metal mesh 105 in the same position. After the detachable metal mesh 105 blocked by impurities is pulled out, it is transferred to the high-pressure cleaning chamber for rotary cleaning.

[0025] The outer wall of the first wall 104 is provided with a high-pressure cleaning chamber and the inner wall of the high-pressure cleaning chamber is provided with an array of high-pressure water jet nozzles 109. The outer wall of the first wall 104 is also provided with a water pumping pipe 110. The end of the water pumping pipe 110 is connected to the sedimentation and filtration chamber 113, and the other end of the water pumping pipe 110 is connected to a drainage chamber.

[0026] The high-pressure cleaning chamber is located inside the first wall 104. An array of high-pressure water jet nozzles 109 is installed inside the high-pressure cleaning chamber, arranged from top to bottom, to flush the clogged detachable metal mesh 105. The bottom of the bottom water suction pipe 110 is located at the bottom of the high-pressure cleaning chamber, and the top is installed upwards, connecting to the sedimentation filter chamber 113 on the outside of the first wall 104, so as to transport the flushed water to the sedimentation filter chamber 113. The sedimentation filter chamber 113 is composed of filter sand, activated carbon and disinfection particles, and has a water outlet at the bottom. A drainage chamber is set below the sedimentation filter chamber 113. The water in the sedimentation filter chamber 113 enters the drainage chamber through the water outlet. The mesh on the surface of the water outlet prevents the filter and disinfection packing from entering the drainage chamber. The drainage chamber is connected to a cyclone separator through a guide channel to discharge the filtered and disinfected water into the first wall 104 of the cabin. Example 2

[0027] This is a second embodiment of the present invention, which provides an anti-blocking loop replacement method.

[0028] Specifically, it includes the following steps: a. Upon detecting a blockage, the intelligent dewatering well 101 stops pumping water and the top automated pumping pipe 106 rotates and separates from the drainage pipe 107, causing the drainage pipe 107 to rotate and deviate. b. The idle rotating hook 1081 rotates to the upper part of the blocked intelligent dewatering well 101 and connects with the detachable metal net 105 through the bayonet. c. The detachable metal mesh 105 that is blocked is pulled out by hydraulic drive, and the detachable metal mesh 105 that is idle inside the high-pressure cleaning chamber is also pulled out. d. Rotation replacement is performed. The idle detachable metal net 105 is pressed into the intelligent dewatering well 101, and the blocked detachable metal net 105 is sent into the high-pressure cleaning chamber for rotation cleaning.

[0029] When the detachable metal mesh 105 of the intelligent dewatering well 101 becomes blocked, the intelligent dewatering well 101 stops pumping water, and the automatic pumping pipe 106 at the top of it rotates and separates from the drainage pipe 107. The drainage pipe 107 rotates and deviates from the wellhead of the intelligent dewatering well 101. The detachable metal mesh 105 is sleeved on the outer wall of the automatic pumping pipe 106, the inner wall is filled with filter sand filler, and the outer wall is provided with a perforated sleeve 111.

[0030] In the rotating lifting replacement mechanism 108 at the end of the first wall 104, the idle rotating hook 1081 rotates to the upper part of the blocked intelligent dewatering well 101 and is precisely connected to the bayonet at the end of the detachable metal net 105.

[0031] Driven by the hydraulic system of the rotating lifting replacement mechanism 108, the rotating hook 1081 performs two actions simultaneously: first, it pulls the blocked detachable metal net 105 out of the intelligent dewatering well 101; second, it pulls out the pre-emptive spare detachable metal net 105 from the high-pressure cleaning chamber on the outer wall of the first wall 104.

[0032] The rotating lifting and replacement mechanism 108 drives the double net to rotate and change position, pressing the spare detachable metal net 105 into the intelligent dewatering well 101 and fixing it. At the same time, the blocked detachable metal net 105 is sent into the high-pressure cleaning chamber. The high-pressure cleaning chamber activates the high-pressure water jet nozzles 109 of the inner wall array to rotate and clean the blocked detachable metal net 105. The mixture generated by the cleaning is introduced into the sedimentation and filtration chamber 113 through the water pumping pipe 110 on the outer wall of the first wall 104.

[0033] After the replacement is completed, the drainage pipe 107 is rotated back to its original position and reconnected to the automatic pumping pipe 106, and the intelligent dewatering well 101 resumes pumping. The pumped water is sent to the water storage tank 112 through the drainage pipe 107, then flows into the sedimentation and filtration tank 113 for treatment, and finally discharged through the drainage tank connected by the pumping pipe 110, thus realizing the circulation drainage.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A marine anti-clogging circulating wellpoint drainage device, characterized in that: include: Intelligent rainwater well (101), the intelligent rainwater well (101) includes an automated pumping pipe (106) and the outer wall of the automated pumping pipe (106) is fitted with a detachable metal mesh (105), the inner wall of the detachable metal mesh (105) is filled with filter sand filler and the outer wall is provided with a perforated sleeve (111). A second wall (103) is provided on the outer wall of the intelligent dewatering well (101). The end of the intelligent dewatering well (101) penetrates the mud barrier layer and is provided with a negative pressure suction interface (102). A first wall (104) is also provided on the outer wall of the second wall (103).

2. The marine anti-clogging circulating wellpoint drainage device as described in claim 1, characterized in that: The outer wall of the first wall (104) is provided with a water storage tank (112), and the end of the water storage tank (112) is provided with a drain pipe (107), and the end of the drain pipe (107) is movably connected to the automatic water pumping pipe (106). The end of the drain pipe (107) is connected to the sedimentation filter tank (113) provided on the outer wall of the first wall (104).

3. The marine anti-blocking circulating well point drainage device as described in claim 2, characterized in that: The first wall (104) is provided with a rotating lifting replacement mechanism (108) at its end. The rotating lifting replacement mechanism (108) is provided with a rotating hook (1081) and the end of the rotating hook (1081) is connected to a bayonet provided at the end of the detachable metal net (105).

4. The marine anti-blocking circulating wellpoint drainage device as described in claim 3, characterized in that: The outer wall of the first wall (104) is provided with a high-pressure cleaning chamber and the inner wall of the high-pressure cleaning chamber is provided with a high-pressure water jet nozzle (109). The outer wall of the first wall (104) is also provided with a water pumping pipe (110). The end of the water pumping pipe (110) is connected to the sedimentation and filtration chamber (113), and the other end of the water pumping pipe (110) is connected to a drainage chamber.

5. A method for preventing blockage through circulation and replacement, applied to the marine anti-blockage circulation wellpoint drainage device as described in any one of claims 1 to 4, characterized in that, Includes the following steps: a. Upon detection of blockage, the intelligent dewatering well (101) stops pumping water and the top automated pumping pipe (106) rotates and separates from the drainage pipe (107), and the drainage pipe (107) rotates and deviates. b. The idle rotating hook (1081) rotates to the upper part of the blocked intelligent dewatering well (101) and connects to the detachable metal net (105) bayonet; c. The blocked removable metal mesh (105) is pulled out by hydraulic drive, and the removable metal mesh (105) idle inside the high-pressure cleaning chamber is also pulled out. d. Rotation replacement is performed, the idle detachable metal net (105) is pressed into the intelligent dewatering well (101), and the blocked detachable metal net (105) is sent into the high-pressure cleaning chamber for rotation cleaning.

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