Nuclear power plant tunnel marine life cleaning device

Abstract

This invention relates to a marine organism cleaning device for nuclear power plant tunnels, comprising a movable chassis extending along the seabed water intake tunnel, and a collection mechanism mounted on the chassis and moving with it. The collection mechanism includes a conveying unit and two side wing units. The conveying unit is adapted to the bottom plane of the seabed water intake tunnel, concentrating and conveying marine organisms in the forward direction of the chassis to the side opposite to the forward direction of the chassis. The side wing units are located on opposite sides of the conveying unit, forming an angle with it. The bottom edge of each side wing unit is adapted to the arc surface of the tunnel's inner wall, gathering marine organisms located on the arc surface of the tunnel's inner wall towards the conveying unit. As the chassis moves forward, the side wing units clean and peel off the marine organisms located on the arc surface of the tunnel's inner wall and gather them to the conveying unit for collection, achieving a simple and efficient way to thoroughly clean marine organisms from the tunnel's inner wall, especially those on the arc surface.

Description

Technical Field

[0001] This invention relates to the field of nuclear power plant tunnel cleaning technology, and in particular to a device for cleaning marine organisms in nuclear power plant tunnels. Background Technology

[0002] After long-term use, the inner walls of the undersea water intake tunnels (hereinafter referred to as tunnels) used by nuclear power plants will grow a large number of marine organisms. Excessive marine organisms will reduce the water intake area of ​​the tunnel, thus having a significant impact on the tunnel's water intake capacity.

[0003] The tunnel interior wall includes a bottom plane and curved surfaces on both sides of the bottom. Current technology for cleaning marine life inside tunnels still relies on manual collection and removal. However, the marine life inside tunnels is often large, and there is a significant amount of debris (such as steel bars and rocks). Therefore, due to limitations in manpower and the tunnel's topography, marine remnants often remain on the curved surfaces of the tunnel interior wall. These remnants are difficult to collect, resulting in incomplete cleaning of the tunnel interior wall. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a marine organism cleaning device for nuclear power plant tunnels that can gather and collect marine organisms on the arc surface of the inner wall of the tunnel.

[0005] The technical solution adopted by the present invention to solve its technical problem is: to provide a marine organism cleaning device for nuclear power plant tunnels, which includes a chassis movable in the extension direction of the seabed water intake tunnel and a collection mechanism set on the chassis and moving with the chassis;

[0006] The collection mechanism includes a conveying unit and two side wing units;

[0007] The conveying unit is adapted to the bottom plane of the seabed water intake tunnel, and concentrates and transports marine organisms in the forward direction of the chassis to the side opposite to the forward direction of the chassis.

[0008] The two wing units are respectively arranged on opposite sides of the conveying unit, and each wing unit is arranged at an angle to the conveying unit; and the bottom edge of each wing unit is adapted to the arc surface on the inner wall of the seabed water intake tunnel, so as to gather the marine organisms on the arc surface of the inner wall of the seabed water intake tunnel toward the conveying unit.

[0009] Preferably, each of the side wing units is hinged to the chassis;

[0010] The collection mechanism also includes two side-wing drive hydraulic cylinders. One end of each side-wing drive hydraulic cylinder is connected to the chassis, and the other end is connected to a side-wing unit, driving the side-wing unit to perform opening and closing movements.

[0011] Preferably, the collection mechanism further includes support wheels disposed on the side wing unit;

[0012] The side wing drive hydraulic cylinder is hinged to the side wing unit; when the side wing unit is opened to the working state, the side wing drive hydraulic cylinder provides a constant pulling force to the side wing unit.

[0013] Preferably, the side wing unit is hinged to the chassis via a hinge assembly;

[0014] The hinge assembly includes a pin on the chassis and a sleeve on the side wing unit that is fitted around the outer periphery of the pin; the sleeve and the pin are rotatable relative to each other in the circumferential direction and movable relative to each other in the axial direction.

[0015] Preferably, the hinge assembly further includes a hinge frame and a pin seat;

[0016] The hinge frame is mounted on the chassis and connected to one end of the pin; the pin seat is mounted on the side wing unit and detachably connected to the other end of the pin; a floating gap is formed between the hinge frame and the sleeve to allow the sleeve and the pin to move relative to each other in the axial direction.

[0017] Preferably, each of the side wing units includes a side wing body and a plurality of first scraping mechanisms;

[0018] The main body of the side wing is hinged to the chassis;

[0019] Multiple first scraping mechanisms are arranged in an arc shape at the bottom edge of the side wing body, matching the arc surface on the inner wall of the seabed water intake tunnel; in the working state, each first scraping mechanism is always in contact with the arc surface on the inner wall of the seabed water intake tunnel.

[0020] Preferably, each of the first scraping mechanisms includes a housing disposed on the side wing body, a telescopic body disposed within the housing, and a scraper disposed at the bottom of the telescopic body;

[0021] The telescopic body includes a guide shaft and a first elastic element; one end of the first elastic element abuts against the inner top wall of the housing, and the other end abuts against the guide shaft; the end of the guide shaft away from the first elastic element is connected to the scraper; the scraper can move back and forth along the axial direction of the guide shaft to maintain a constant contact with the arc surface on the inner wall of the seabed water intake tunnel.

[0022] The shape of the scraper corresponds to the arc surface on the inner wall of the seabed water intake tunnel.

[0023] Preferably, one end of the guide shaft includes a first portion and a second portion that are axially connected; the diameter of the first portion is smaller than the diameter of the second portion; a shoulder is defined between the first portion and the second portion;

[0024] The opposite end of the first elastic element abuts against the shoulder.

[0025] Preferably, the telescopic body further includes a scraper mounting bracket;

[0026] The scraper mounting bracket is detachably connected to the end of the guide shaft away from the first elastic member, and the scraper is mounted on the scraper mounting bracket.

[0027] Preferably, the side wing unit further includes a smoothing propeller and a smoothing propeller drive hydraulic cylinder;

[0028] The smoothing paddle includes a shaft and a blade; the shaft and blade are arranged parallel to the main body of the side wing.

[0029] One end of the propeller rod is hinged to the side wing body, and the other end is detachably connected to the propeller plate; the piston rod end of the smoothing propeller drive hydraulic cylinder is connected to the propeller rod.

[0030] Preferably, the side wing unit further includes a leak-proof plate connected between the side wing body and the chassis; the leak-proof plate has an arc surface and is connected to the side wing body by its arc surface.

[0031] Preferably, the conveying unit includes a mounting plate, a chain rake mechanism, and a screw conveyor mechanism;

[0032] The mounting plate is connected to the chassis; the chain rake mechanism and the screw conveyor mechanism are mounted on the mounting plate; the screw conveyor mechanism is located on opposite sides of the chain rake mechanism;

[0033] In operation, the spiral conveyor transports marine organisms located on opposite sides of the chain rake mechanism in a direction closer to the chain rake mechanism, while the chain rake mechanism concentrates and transports marine organisms in the forward direction of the chassis to the side opposite to the forward direction of the chassis.

[0034] Preferably, the conveying unit further includes a first scraper disposed on the mounting plate;

[0035] The length direction of the first scraper is perpendicular to the forward direction of the chassis and is inclined relative to the bottom plane of the seabed water intake tunnel, forming a guide slope for guiding marine life in the forward direction of the chassis to the chain rake mechanism.

[0036] Preferably, the chain rake mechanism includes a drive shaft, a driven shaft, a chain, a rack, and a drive motor;

[0037] The drive shaft and driven shaft are arranged in parallel; the drive shaft and driven shaft are connected by the chain drive; the rack is arranged on the chain; the drive motor is arranged at one end of the drive shaft.

[0038] Preferably, the chain rake mechanism further includes a speed sensor disposed between the drive motor and the drive shaft.

[0039] Preferably, the mounting plate includes a fixed shell, a first side plate, a second side plate, and a bottom plate;

[0040] The fixed shell, the first side plate, and the second side plate can all be detachably fixed to the base plate;

[0041] The fixed shell stands upright on one side of the chain and is connected to the chassis; the first side plate is connected to one surface of the fixed shell; the second side plate is disposed on the side of the first side plate away from the fixed shell; the chain and the rack thereon are located between the first side plate and the second side plate; the second side plate has through holes for the drive shaft and the driven shaft to pass through.

[0042] Preferably, the collecting mechanism further includes a tension adjustment mechanism; the tension adjustment mechanism includes a base, a fixing component, and an adjusting bolt;

[0043] The base and the fixing component are mounted on the chassis; the base is located on one side of the fixing component; one end of the drive shaft is fixed to the base; the adjusting bolt connects the base and the fixing component, and the base and the fixing component are movable relative to each other along the axial direction of the adjusting bolt.

[0044] Preferably, the spiral conveying mechanism includes a first spiral conveying component and a second spiral conveying component;

[0045] The first and second spiral conveyors are respectively connected to the opposite ends of the driven shaft; wherein the first and second spiral conveyors rotate in opposite directions.

[0046] Preferably, the collecting mechanism further includes a second scraping mechanism;

[0047] The second scraping mechanism includes a mounting shell disposed on the chassis and perpendicular to the forward direction of the chassis, and a second scraper disposed on the mounting shell; the second scraper is inclined relative to the bottom plane of the seabed water intake tunnel and can move back and forth in a direction perpendicular to the bottom plane of the seabed water intake tunnel.

[0048] Preferably, the second scraping mechanism further includes a second elastic element and a guide wheel disposed within the mounting housing;

[0049] The second elastic element abuts against the inner wall of the mounting shell and the second scraper; the second scraper is provided with a guide groove, the length direction of which is perpendicular to the bottom plane of the seabed water intake tunnel, and the guide wheel is slidably engaged in the guide groove.

[0050] Implementing this invention has at least the following beneficial effects: as the chassis moves forward, the side wing unit cleans and peels off the marine organisms on the arc surface of the tunnel inner wall and gathers them to the conveying unit for further collection, which can achieve a simple and efficient way to thoroughly clean the marine organisms on the tunnel inner wall, especially those on the arc surface. Attached Figure Description

[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0052] Figure 1 This is a schematic diagram of the structure of a nuclear power plant tunnel marine organism cleaning device in operation according to an embodiment of the present invention;

[0053] Figure 2 yes Figure 1 Partial top view;

[0054] Figure 3 yes Figure 1 Partial side view;

[0055] Figure 4 This is a schematic diagram of the structure of the hinge assembly of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention;

[0056] Figure 5 This is a schematic diagram of the side wing unit of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention, viewed from one perspective.

[0057] Figure 6 This is a cross-sectional schematic diagram of the first scraping mechanism of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention;

[0058] Figure 7 This is a schematic diagram of the side wing unit of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention, viewed from another perspective;

[0059] Figure 8 This is a schematic diagram of the conveying unit of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention, viewed from one perspective.

[0060] Figure 9 This is a cross-sectional schematic diagram of the conveying unit of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention;

[0061] Figure 10 This is a side view schematic diagram of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention;

[0062] Figure 11 yes Figure 10 Enlarged schematic diagram of part A;

[0063] Figure 12 This is a schematic diagram of the second scraping mechanism of a marine organism cleaning device for nuclear power plant tunnels according to an embodiment of the present invention, viewed from one perspective.

[0064] Figure 13 yes Figure 12 A longitudinal sectional view. Detailed Implementation

[0065] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0066] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. They can refer to direct connection or indirect connection through an intermediate medium. When an element is referred to as being "on" another element, that element can be located "directly" or "indirectly" on the other element, or there may be one or more intermediary elements. The terms "first" and "second" are used only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] Figures 1 to 13 An embodiment of the present invention is shown of a marine organism removal device for a nuclear power plant tunnel, which is used inside a submarine water intake tunnel (hereinafter referred to as the tunnel) of a nuclear power plant. The inner wall of the tunnel includes a bottom plane 40 and arcuate surfaces 41 located on opposite sides of the bottom plane 40.

[0068] Please refer to Figure 1-2 Understanding the whole: The marine organism removal device for nuclear power plant tunnels includes a chassis 1 and a collection mechanism. The chassis 1 is movable along the extension direction of the tunnel; the collection mechanism is mounted on the chassis 1 and is movable along the extension direction of the tunnel along with the chassis 1. Figure 2 The arrows indicate the direction of flow of the material formed by the accumulation of marine organisms as the chassis moves forward.

[0069] The collection mechanism includes a conveying unit 2 and two side wing units 3.

[0070] The conveying unit 2 is adapted to the bottom plane 40 of the tunnel, so that as the chassis 1 moves forward, it scoops up the marine life on the bottom plane 40 and simultaneously transports the marine life in the forward direction of the chassis 1 to the side opposite to the forward direction of the chassis 1. Furthermore, a milling mechanism can be installed behind the conveying unit 2 on the chassis 1. After the marine life is transported by the conveying unit 2 to the side opposite to the forward direction of the chassis 1, it enters the milling mechanism for further collection and cleaning.

[0071] Please see Figure 3 The milling mechanism includes a housing 7 and a milling unit (not shown) disposed within the housing 7.

[0072] Two side wing units 3 are respectively arranged on opposite sides of the conveying unit 2 in a mirror-symmetrical manner, and each side wing unit 3 is set at a certain angle to the conveying unit 2. As the chassis 1 moves forward, the marine life on both sides is gathered to the middle, that is, gathered to the conveying unit 2, by the obstruction of the side wing units 3. Furthermore, the bottom edge of each side wing unit 3 is adapted to the arc surface 41 on the inner wall of the tunnel, so as the chassis 1 moves forward, it also scoops up the marine life on the arc surface 41 and gathers the marine life closer to the conveying unit 2.

[0073] As the chassis 1 moves forward, the side wing unit 3 cleans and peels off the marine organisms on the arc surface 41 of the tunnel inner wall and gathers them to the conveying unit 2 for further collection. This can achieve a simple and efficient way to thoroughly clean the marine organisms on the tunnel inner wall, especially those on the arc surface 41.

[0074] Furthermore, the conveying unit 2 and the side wing unit 3 are both integrated and installed on the chassis 1. In particular, the side wing unit 3 can also be installed on the chassis 1 and travel with the chassis 1. This makes the structure of the nuclear power plant tunnel marine organism cleaning device of the present invention compact and reasonable, with low cost and small overall weight, thereby reducing the pressure on the tunnel and avoiding adverse effects on the tunnel structure.

[0075] In this embodiment, each side wing unit 3 is hinged to the chassis 1, so that the side wing units 3 located on both sides of the conveying unit 2 can open and close together relative to the chassis 1 or relative to the conveying unit 2. Furthermore, the opening and closing movement can be a horizontal opening and closing movement parallel to the bottom plane 40 of the tunnel.

[0076] Before operation, the two side wing units 3 can be retracted. In operation, the two side wing units 3 open to form a certain angle with the chassis 1 or the conveying unit 2, and the size of the angle can be adjusted by the opening and closing movement of the two side wing units 3.

[0077] To achieve this opening and closing movement, the collecting mechanism also includes two side-wing drive hydraulic cylinders 5. Each side-wing drive hydraulic cylinder 5 is a hydraulic cylinder. One end of each side-wing drive hydraulic cylinder 5 is connected to the chassis 1, and the opposite end is connected to a side-wing unit 3. Each side-wing drive hydraulic cylinder 5 hydraulically drives one side-wing unit 3, so that under the drive of the two side-wing drive hydraulic cylinders 5, the two side-wing units 3 together open and close relative to the conveying unit 2, or relative to the chassis 1, to adjust the angle formed between them and the conveying unit 2 or between them and the chassis 1.

[0078] In this embodiment, the collection mechanism also includes support wheels 6 disposed on the side wing unit 3.

[0079] Specifically, the side wing unit 3 may include a straight upper edge and an arc-shaped bottom edge. The junction of the straight upper edge and the arc-shaped bottom edge of the side wing unit 3 is defined as the tail of the side wing unit 3, and the support wheel 6 is disposed on the tail of the side wing unit 3. The support wheel 6 allows the side wing unit 3 to roll relative to the arc surface 41 on the tunnel inner wall, thereby helping the side wing unit 3 to better conform to the arc surface 41 on the tunnel inner wall and move forward together with the chassis 1 along the extension direction of the tunnel.

[0080] As the chassis 1 moves forward, the side wing unit 3, through multiple first scraping mechanisms 32 on its bottom edge and the support wheel 6 at the rear, always keeps in close contact with the arc surface 41 on the inner wall of the tunnel, which can adapt well to changes in driving conditions and changes in position on the arc surface 41 of the tunnel.

[0081] Meanwhile, the piston rod end of the side wing drive hydraulic cylinder 5 is hinged to the side wing unit 3. When the side wing unit 3 is opened to the working state, the side wing drive hydraulic cylinder 5 provides a constant pulling force to the side wing unit 3. The direction of this constant pulling force is opposite to the forward direction of the chassis 1, hereinafter referred to as the rear pulling force.

[0082] Specifically, in operation, the chassis 1 first travels to the centerline of the tunnel bottom plane 40 in the width direction and maintains a centered position. The side wing unit 3, the piston rod end of the side wing drive hydraulic cylinder 5, and the chassis 1 are all hinged, providing a certain degree of adaptive rotational space. Due to the constant rearward pull provided by the side wing drive hydraulic cylinder 5, when the chassis 1 deviates to one side, the external force on the side wing unit 3 on the deviated side exceeds the constant rearward pull provided by the side wing drive hydraulic cylinder 5, causing the side wing unit 3 to adaptively rotate to balance the change in external force. Simultaneously, due to the positional shift of the chassis 1, the side wing unit 3 on the opposite side of the chassis 1's deviation experiences a thrust opposite to the rearward pull provided by the side wing drive hydraulic cylinder 5. However, thanks to the constant rearward pull provided by the side wing drive hydraulic cylinder 5, it can continue to maintain its open state until the support wheel 6 is pressed against the tunnel wall, thus balancing the change in external force. Therefore, the nuclear power plant tunnel marine organism cleaning device as a whole can adapt well to driving deviations, has good offset adaptability, and can reduce the requirements for driving accuracy.

[0083] Furthermore, the support wheel 6 can also have a force feedback function, thereby monitoring the pressure it exerts on the tunnel wall and feeding it back to the control center. When the control center receives a signal that the pressure exerted on the tunnel wall exceeds a preset limit, the entire device can be shut down promptly. This prevents excessive local stress on the tunnel wall, which could lead to internal gaps.

[0084] like Figure 3-4 As shown, in this embodiment, the side wing unit 3 and the chassis 1 are hinged together by a hinge assembly.

[0085] The articulated assembly includes a pin 11 mounted on the chassis 1 and a sleeve 12 mounted on the side wing unit 3 and fitted around the outer periphery of the pin 11. The sleeve 12 and the pin 11 are rotatable relative to each other in the circumferential direction and movable relative to each other in the axial direction. This allows the side wing unit 3 to open and close relative to the chassis 1, and also to float up and down relative to the chassis 1 when external forces change, achieving its adaptive floating function to adapt to changes in driving conditions. Furthermore, the adaptive floating function of the side wing unit 3 can also prevent excessive local stress on the tunnel structure, thus avoiding internal cracks.

[0086] Furthermore, the hinge assembly also includes a hinge frame 13 and a pin seat 14. The hinge frame 13 is disposed on the base 80 and connected to one end of the pin 11 to fix one end of the pin 11 to the base 80 via the hinge frame 13; the pin seat 14 is disposed on the side wing unit 3 and can be detachably fixed to the opposite end of the pin 11 by means of bolts or other connecting parts to fix the other end of the pin 11 to the side wing unit 3.

[0087] The axial length of the sleeve 12 is less than the axial length of the pin 11, so that a floating gap (e.g., a gap between the hinge frame 13 and the sleeve 12) is formed to allow relative axial movement between the sleeve 12 and the pin 11. Figure 4 As shown in the figure, this allows the side wing unit 3 to float up and down relative to the chassis 1.

[0088] like Figures 5 to 6 As shown, in this embodiment, the side wing unit 3 includes a side wing body 31 and a plurality of first scraping mechanisms 32. The plurality of first scraping mechanisms 32 are arranged in an arc shape on the bottom edge of the side wing body 31, matching the arc surface 41 on the tunnel inner wall. In the working state, each first scraping mechanism 32 is always in contact with the arc surface 41 on the tunnel inner wall.

[0089] Specifically, the side wing body 31 may include a straight upper edge and an arc-shaped bottom edge, with multiple first scraping mechanisms 32 arranged along the bottom edge of the side wing body 31 to present an arc-shaped arrangement. Alternatively, multiple first scraping mechanisms 32 of different lengths may be arranged sequentially to present an arc-shaped arrangement at the bottom edge of the side wing body 31.

[0090] Furthermore, each first scraping mechanism 32 includes a housing 320 disposed on the side wing body 31, a telescopic body disposed within the housing 320, and a scraper 321 disposed at the bottom of the telescopic body.

[0091] The telescopic body includes a guide shaft 323 and a first elastic element 324. The first elastic element 324 can be a spring and can be in a pre-compressed state to provide a pre-pressure for the scraper 321.

[0092] One end of the first elastic element 324 abuts against the inner top wall of the housing 320, and the other end abuts against the guide shaft 323. The end of the guide shaft 323 away from the first elastic element 324 is connected to the scraper 321.

[0093] The shape of the scraper 321 corresponds to the arc surface 41 on the inner wall of the tunnel. Specifically, the surfaces of the scraper 321 that contact the arc surface 41 on the inner wall of the tunnel include inclined surfaces and flat surfaces.

[0094] Specifically, under the elastic deformation of the first elastic element 324, the scraper 321 can move back and forth along the axial direction of the guide shaft 323, so that when the driving conditions change or the ground is uneven, the first scraping mechanism 32 can extend and retract to adjust its own shape, so as to always keep in contact with the arc surface 41 on the inner wall of the tunnel. In other words, it ensures that the bottom edge of each side wing unit 3 is always in contact with the arc surface 41 on the inner wall of the tunnel, which can adapt well to changes in driving conditions and changes in position on the arc surface 41 of the tunnel, and has good driving and handling performance, and can adapt well to the narrow passage inside the tunnel.

[0095] Furthermore, when the chassis 1 veers to one side, the positions of the two side wing units 3 on the arc surface 41 inside the tunnel will change. Thanks to the telescopic adjustment of the telescopic body, the first scraping mechanism 32 can telescopically adjust its shape to readjust the curvature of the new position on the arc surface 41 inside the tunnel, and this adaptation process is a natural transition. From this perspective, it can also be seen that the side wing unit 3 has good offset adaptability when driving in the tunnel.

[0096] Furthermore, one end of the guide shaft 323 includes a first portion and a second portion that are axially connected; the diameter of the first portion is smaller than the diameter of the second portion. A shoulder is defined between the first portion and the second portion of the guide shaft 323. The opposite end of the first elastic member 324 abuts against the shoulder to reinforce the secure connection between the guide shaft 323 and the first elastic member 324.

[0097] Furthermore, the telescopic body also includes a scraper mounting bracket 322.

[0098] The scraper mounting bracket 322 and the guide shaft 323 at the end away from the first elastic member 324 can be detachably connected by bolts or other connecting parts. The scraper 321 is mounted on the scraper mounting bracket 322, which makes it convenient to replace the scraper 321.

[0099] Please see Figure 7 Furthermore, the side wing unit 3 also includes a smoothing paddle 33 and a smoothing paddle drive hydraulic cylinder 34. The smoothing paddle 33 is used to smooth out the piled-up marine organisms, preventing them from piling up too high and jumping over the top of the side wing unit 3, while also assisting the marine organisms to gather towards the center.

[0100] The smoothing paddle 33 includes a paddle shaft 330 and a paddle plate 331. Both the paddle shaft 330 and the paddle plate 331 are arranged parallel to the side wing body 31. One end of the paddle shaft 330 is hinged to the side wing body 31, and the opposite end is detachably connected to the paddle plate 331. This allows for easy removal and installation of the paddle plate 331 from the paddle shaft 330, facilitating the replacement of paddle plates 331 with different structural forms, as well as the replacement of old paddle plates 331 with new ones. The piston rod end of the smoothing paddle drive hydraulic cylinder 34 is connected to the paddle shaft 330 and is used to drive the smoothing action of the smoothing paddle 33.

[0101] Specifically, along the forward direction of the chassis 1, the side wing body 31 includes a front side 31a and a back side 31b, wherein the front side 31a is closer to the marine life in the forward direction and is in direct contact with the marine life in the forward direction. The first scraping mechanism 32 is located on the back side 31b of the side wing body 31. The length direction of the propeller rod 330, the propeller plate 331, and the smoothing propeller drive hydraulic cylinder 34 are all parallel to the front side 31a of the side wing body 31. One end of the smoothing propeller 33 is hinged to the front side 31a of the side wing body 31, and the other end is detachably connected to the propeller rod 330.

[0102] Furthermore, the smoothing propeller 33 and the smoothing propeller drive hydraulic cylinder 34 are both located on the side wing body 31 near the top of the side wing body 31. The piston rod end of the smoothing propeller 33 hydraulic cylinder is connected to the middle position in the length direction of the propeller rod 330.

[0103] Driven by the smoothing propeller hydraulic cylinder 34, the smoothing propeller 33 reciprocates around its hinge point with the side wing body 31. This action can smooth out the excessively piled marine organisms and help them gather towards the center.

[0104] Furthermore, the side wing unit 3 also includes a leak-proof plate 35 connecting the side wing body 31 and the chassis 1. Because the side wing body 31 is hinged to the chassis 1, a small gap is formed between the side wing body 31 and the chassis 1 to allow for rotation space. The leak-proof plate 35 is used to transition the side wing body 31 and the chassis 1, and to seal the small gap to prevent marine life from leaking out from the small gap when the side wing body 31 rotates relative to the chassis 1.

[0105] To accommodate the rotation trajectory of the side wing unit 3, an arc surface 41 is formed on the leak-proof plate 35, and the side wing body 31 is connected by the arc surface 41. Furthermore, the curvature of the arc surface 41 corresponds to the trajectory of the side wing body 31 when it rotates relative to the chassis 1.

[0106] Specifically, as described above, the side wing body 31 includes a straight upper edge and an arc-shaped bottom edge, and also includes a vertical side edge. The straight upper edge, the arc-shaped bottom edge, and the vertical side edge together form the overall outline of the side wing body 31. A hinge assembly is provided on the straight upper edge of the side wing body 31. Correspondingly, the arc surface 41 on the leak-proof plate 35 connects to the vertical side edge of the side wing body 31.

[0107] Furthermore, a flexible material can be provided between the arc surface 41 of the leak-proof plate 35 and the vertical side edge of the side wing body 31 to further fill and seal the tiny gap formed between the side wing body 31 and the chassis 1.

[0108] like Figures 8 to 9 As shown, in this embodiment, the conveying unit 2 includes a mounting plate, a chain rake mechanism, and a screw conveying mechanism.

[0109] The mounting plate provides a base for the chain rake mechanism and the screw conveyor mechanism. The chain rake mechanism collects and transports marine organisms located in the forward direction of chassis 1 to the side opposite to the forward direction of chassis 1, and can then feed them into the milling mechanism for further cleaning. The screw conveyor mechanism provides a pushing force to bring marine organisms located on both sides of the chain rake mechanism in the forward direction of chassis 1 toward the chain rake mechanism. After the side wing unit 3 peels the marine organisms off the arc surface 41, it, together with the screw conveyor mechanism, can concentrate and gather the marine organisms toward the chain rake mechanism.

[0110] The mounting plate is connected to the chassis 1. The chain rake mechanism and the screw conveyor mechanism are mounted on the mounting plate. The screw conveyor mechanisms are located on opposite sides of the chain rake mechanism.

[0111] In operation, the spiral conveyor transports the marine organisms located on opposite sides of the chain rake mechanism in a direction close to the chain rake mechanism. The chain rake mechanism then concentrates and transports the marine organisms in the forward direction of the chassis 1 to the side opposite to the forward direction of the chassis 1, thereby gathering the marine organisms together with the side wing unit 3 at the chain rake mechanism.

[0112] Furthermore, the conveying unit 2 also includes a first scraper 24 disposed on the mounting plate.

[0113] The first scraper 24 is elongated and directly contacts the marine organisms in the forward direction of the chassis 1. The length of the first scraper 24 is perpendicular to the forward direction of the chassis 1, and it is inclined relative to the bottom plane 40 of the tunnel, forming a guide slope for guiding the marine organisms in the forward direction of the chassis 1 to the chain rake mechanism. Specifically, after the marine organisms in the forward direction of the chassis 1 are scooped up by the first scraper 24 and pass through the guide slope, some are fed into the chain rake mechanism via a screw conveyor, while others enter the chain rake mechanism directly.

[0114] In this embodiment, the chain rake mechanism includes a drive shaft 201, a driven shaft 202, a chain 203, a rack 204, and a drive motor 205 (see [reference]). Figure 2 The drive shaft 201 and driven shaft 202 are arranged in parallel and are connected by a chain 203. A rack 204 is fixed to the chain 203. The output end of the drive motor 205 is connected to one end of the drive shaft 201.

[0115] Specifically, the drive motor 205 can control the drive shaft 201 to rotate in two opposite directions (forward or reverse). During forward rotation, the torque input from the drive shaft 201 is sequentially transmitted to the chain 203 and the driven shaft 202. The rack 204 rotates with the chain 203, causing the marine organisms to move along the direction of the chain 203 and be pushed backward into the milling mechanism. When excessive accumulation of marine organisms or the presence of impurities causes jamming in the chain rake mechanism, a reversing signal is sent to the drive motor 205 to control the drive shaft 201 to reverse, thus pushing the marine organisms out of the chain rake mechanism and resolving the jamming problem.

[0116] Furthermore, the chain rake mechanism also includes a speed sensor 206 (see [link]). Figure 2 , Figure 11 The speed sensor 206 is located between the drive motor 205 and the drive shaft 201 and is connected to the control center to provide feedback on the output speed at the drive shaft 201, which is used to detect whether the chain rake mechanism is rotating normally.

[0117] Specifically, when excessive marine life accumulates or is mixed with impurities, causing the components of the chain rake mechanism to jam, the change in the rotational speed signal received by the rotational speed sensor 206 can indicate that there is jamming at the chain rake mechanism. This allows the drive motor 205 to be switched to reverse to resolve the jamming problem, or the entire device can be shut down and manual intervention can be performed on-site to resolve the jamming problem.

[0118] Furthermore, the mounting plate includes a fixed shell 230, a first side plate 231, a second side plate 232, and a base plate 233. The first scraper 24 is mounted on the foremost side of the base plate 233, directly contacting marine life in the direction of travel.

[0119] Specifically, the fixed housing 230, the first side plate 231, and the second side plate 232 are all detachably fixed to the base plate 233. The fixed housing 230 stands upright on one side of the chain 203 and is fixedly mounted on the chassis 1. The fixed housing 230 can be mounted on the outer shell 7 of the milling mechanism, thereby indirectly mounting it on the chassis 1. The first side plate 231 is close to one surface of the fixed housing 230 and can be fixedly connected to one surface of the fixed housing 230 by bolts or other connecting parts. The second side plate 232 is located on the side of the first side plate 231 away from the fixed housing 230. Both the first side plate 231 and the second side plate 232 are vertical plates, and the chain 203 and the rack 204 on it are limited between the first side plate 231 and the second side plate 232. The second side plate 232 has a through hole for the drive shaft 201 and the driven shaft 202 to pass through, and the drive shaft 201 and the driven shaft 202 pass through the through hole and are arranged parallel to each other. The driving force generated by the drive shaft 201 is transmitted to the driven shaft 202 through the chain 203, causing the chain 203 and the rack 204 on it to rotate, which in turn causes the driven shaft 202 to rotate.

[0120] In operation, marine organisms in the forward direction of chassis 1 pass the guide slope on the first scraper 24 and are moved by the rack 204 on the chain 203. As the chain 203 rotates, they are transported to the side opposite to the forward direction of chassis 1 and enter the milling mechanism for further cleaning.

[0121] Furthermore, the screw conveyor mechanism includes a first screw conveyor 21 and a second screw conveyor 22. To accommodate the structure of the milling mechanism and other components on the base 80, the first screw conveyor 21 and the second screw conveyor 22 are offset, with the length of the first screw conveyor 21 being greater than the length of the second screw conveyor 22, thus giving the chain rake mechanism an offset layout.

[0122] The first helical conveyor 21 and the second helical conveyor 22 are respectively connected to the opposite ends of the driven shaft 202. The first helical conveyor 21 and the second helical conveyor 22 rotate in opposite directions.

[0123] Specifically, the first spiral conveyor 21 includes a first rotating shaft and first spiral blades disposed on its circumference, and the second spiral conveyor 22 includes a second rotating shaft and second spiral blades disposed on its circumference. The first spiral conveyor 21 is drivenly connected to one end of the driven shaft 202 via its first rotating shaft, and the second spiral conveyor 22 is drivenly connected to the other end of the driven shaft 202 via its second rotating shaft. That is, the first rotating shaft, the second rotating shaft, and the driven shaft 202 rotate synchronously and in the same direction. The spiral extension direction of the first spiral blade along the first rotating shaft is opposite to the spiral extension direction of the second spiral blade along the second rotating shaft, so that the first spiral conveyor 21 and the second spiral conveyor 22 can rotate in opposite directions while rotating in the same direction on the same axis.

[0124] Thus, in the working state, after the drive motor 205 on the drive shaft 201 is turned on, the marine organisms located on both sides of the chain rake mechanism are transported to the chain rake mechanism in the forward direction of the chassis 1 by the first spiral conveyor 21 and the second spiral conveyor 22 rotating in opposite directions.

[0125] Furthermore, the first spiral conveyor 21 is disposed near the first side plate 231 and the fixed housing 230. Specifically, the first side plate 231 has a through hole for the first rotating rod to pass through. The opposite ends of the first rotating rod are respectively connected to the fixed housing 230 and the first side plate 231, and one end passes through the through hole in the first side plate 231 and is connected to the driven shaft 202 for transmission. One end of the second spiral conveyor 22 is fixed to the second side plate 232, and the other end is connected to the driven shaft 202 for transmission.

[0126] Therefore, only one drive motor 205 is needed to simultaneously enable the normal operation of the screw conveyor mechanism and the chain rake mechanism, achieving a compact and reasonable arrangement while each fulfills its respective function. It is understood that in other embodiments, the screw conveyor mechanism and the chain rake mechanism can also adopt other arrangements and be correspondingly adjusted to different drive methods, while still fulfilling their respective functions.

[0127] Please see Figures 10 to 11 Furthermore, the collecting mechanism also includes a tension adjustment mechanism 8 for adjusting the tension of the drive shaft 201 of the chain rake mechanism. The tension adjustment mechanism 8 includes a base 80, a fixing member 81, and an adjusting bolt 82. The base 80 and the fixing member 81 are mounted on the chassis 1.

[0128] Correspondingly, the outer casing 7 is mounted on the chassis 1. Correspondingly, the base 80 can be fixed to the outer casing 7 of the milling mechanism. That is, the base 80 is indirectly mounted on the chassis 1 through the outer casing 7 of the milling mechanism.

[0129] The base 80 is located on one side of the fixing member 81. One end of the drive shaft 201 passes through the shaft hole on the base 80 and is fixed to the base 80. The adjusting bolt 82 connects the base 80 and the fixing member 81, and the base 80 and the fixing member 81 are movable relative to each other along the axial direction of the adjusting bolt 82.

[0130] Specifically, the fixing member 81 is C-shaped and has a hole through which the adjusting bolt 82 passes. A protrusion is provided on the base 80, which also has a hole through which the adjusting bolt 82 passes. The two ends of the adjusting bolt 82 pass through the holes on the fixing member 81 and the protrusion, respectively, connecting the protrusion and the fixing member 81. The base 80 also has several elongated slots 801 for limiting the direction of movement of the base 80, the length direction of which is consistent with the length direction of the adjusting bolt 82. The outer casing 7 of the milling mechanism has connecting holes 802, through which bolts or other connecting parts can be sequentially passed through the elongated slots 801 and the connecting holes 802 to fix the base 80 to the outer casing 7 of the milling mechanism. Meanwhile, by turning the adjusting bolt 82, the distance between the base 80 and the fixing part 81 is changed. The base 80 can move back and forth along the length direction of the long slot 801 (that is, the length direction of the adjusting bolt 82), and the tension of the drive shaft 201 on the base 80 can be adjusted, thereby adjusting the tension of the chain rake mechanism.

[0131] Please refer to Figure 3 , Figure 12 , Figure 13 The collection mechanism in this embodiment also includes a second scraping mechanism 9.

[0132] The second scraping mechanism 9 includes a mounting shell 90 disposed on the chassis 1 and perpendicular to the forward direction of the chassis 1, and a second scraper 92 disposed on the mounting shell 90. The mounting shell 90 includes a connected upper cover plate 901 and a bottom shell 902, which together form a cavity for accommodating the second scraper 92.

[0133] The second scraping mechanism 9 may be mounted on the housing 7 of the milling mechanism, thus indirectly mounted on the chassis 1. The mounting housing 90 provides a mounting base for the second scraper 92.

[0134] The second scraper 92 is inclined relative to the bottom plane 40 of the tunnel and can move back and forth in a direction perpendicular to the bottom plane 40 of the tunnel.

[0135] Specifically, as the chassis 1 moves forward, the second scraper 92 scrapes and cleans the marine organisms on the bottom plane 40 of the tunnel. The scraped marine organisms are then pushed forward along the inclined surface of the second scraper 92 and collected at the conveyor unit 2. Furthermore, because the second scraper 92 can move back and forth in a direction perpendicular to the bottom plane 40 of the tunnel, it has the function of retracting and avoiding hard objects, which can well adapt to the unevenness of the bottom plane 40 inside the tunnel.

[0136] Furthermore, the second scraping mechanism 9 also includes a second elastic element 91 and a guide wheel 93 disposed within the mounting housing 90.

[0137] The second elastic element 91 abuts against the inner wall of the mounting shell 90 and between the second scraper 92. The second scraper 92 has a guide groove 920, the length direction of which is perpendicular to the bottom plane 40 of the tunnel, and the guide wheel 93 is slidably engaged in the guide groove 920.

[0138] Specifically, the second elastic element 91 can be a spring. Before entering the working state, the second elastic element 91 can be in a pre-compressed state with pre-pressure, thereby pushing the second scraper 92 to generate pre-pressure on the bottom plane 40 of the tunnel, which can efficiently clean the bottom plane 40 and make the cleaned bottom plane 40 have a high degree of cleanliness.

[0139] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A nuclear power plant tunnel marine organism cleaning device, characterized by, The collecting mechanism includes a conveying unit (2) and two side wing units (3); The conveying unit (2) is matched with the bottom plane (40) of the submarine water tunnel, and concentrates and conveys the marine organisms in the advancing direction of the chassis (1) to the side opposite to the advancing direction of the chassis (1); The two side wing units (3) are respectively arranged on the opposite sides of the conveying unit (2), and each side wing unit (3) is arranged at an angle with the conveying unit (2); and the bottom edge of each side wing unit (3) is matched with the arc surface (41) on the inner wall of the submarine water tunnel, so as to gather the marine organisms on the arc surface (41) on the inner wall of the submarine water tunnel to the direction close to the conveying unit (2); Each side wing unit (3) includes a side wing body (31) and a plurality of first scraping mechanisms (32); the side wing body (31) is hinged to the chassis (1); the plurality of first scraping mechanisms (32) are arranged in an arc line type at the bottom edge of the side wing body (31) and matched with the arc surface (41) on the inner wall of the submarine water tunnel; in the working state, each first scraping mechanism (32) can adjust its form to always match the arc surface (41) on the inner wall of the submarine water tunnel; Each side wing unit (3) is hinged to the chassis (1), and the collecting mechanism further includes two side wing driving hydraulic cylinders (5); one end of each side wing driving hydraulic cylinder (5) is connected to the chassis (1), and the opposite end is connected to one side wing unit (3) to drive the side wing unit (3) to perform opening and closing movement; the side wing driving hydraulic cylinder (5) is hinged to the side wing unit (3); after the side wing unit (3) is opened to the working state, the side wing driving hydraulic cylinder (5) provides constant tension to the side wing unit (3); Each first scraping mechanism (32) includes a shell (320) arranged on the side wing body (31), a telescopic body arranged in the shell (320), and a scraper (321) arranged at the bottom of the telescopic body; The telescopic body includes a guide shaft (323) and a first elastic member (324); one end of the first elastic member (324) abuts against the inner top wall of the shell (320), and the opposite end abuts against the guide shaft (323); one end of the guide shaft (323) away from the first elastic member (324) is connected to the scraper (321); the scraper (321) can move back and forth along the axial direction of the guide shaft (323) to keep always matched with the arc surface (41) on the inner wall of the submarine water tunnel; The shape of the scraper (321) corresponds to the arc surface (41) on the inner wall of the submarine water tunnel; One end of the guide shaft (323) includes a first part and a second part connected in the axial direction; the diameter of the first part is smaller than that of the second part; a shaft shoulder is defined between the first part and the second part. ​ The other end of the first elastic member (324) is abutted against the shaft shoulder.

2. The nuclear power plant tunnel marine growth removal device of claim 1, wherein, The collecting mechanism further comprises a supporting wheel (6) arranged on the side wing unit (3).

3. The nuclear power plant tunnel marine growth removal device of claim 1, wherein, The side wing unit (3) is hinged to the chassis (1) through a hinge assembly. The hinge assembly comprises a pin shaft (11) arranged on the chassis (1) and a sleeve (12) arranged on the side wing unit (3) and sleeved with the outer periphery of the pin shaft (11); the sleeve (12) is rotatable relative to the pin shaft (11) in the circumferential direction, and the sleeve (12) is movable relative to the pin shaft (11) in the axial direction.

4. The nuclear power plant tunnel marine growth removal device of claim 3, wherein, The hinge assembly further comprises a hinge frame (13) and a pin shaft seat (14). The hinge frame (13) is arranged on the chassis (1) and connected to one end of the pin shaft (11); the pin shaft seat (14) is arranged on the side wing unit (3) and detachably connected to the other end of the pin shaft (11); a floating gap is formed between the hinge frame (13) and the sleeve (12) for the sleeve (12) to move relative to the pin shaft (11) in the axial direction.

5. The nuclear power plant tunnel marine growth removal device of claim 1, wherein, The telescopic main body further comprises a scraper mounting frame (322). The scraper mounting frame (322) is detachably connected to one end of the guide shaft (323) away from the first elastic member (324), and the scraper (321) is mounted on the scraper mounting frame (322).

6. The nuclear power plant tunnel marine growth removal device of claim 1, wherein, The side wing unit (3) further comprises a smoothing paddle (33) and a smoothing paddle driving hydraulic cylinder (34). The smoothing paddle (33) comprises a paddle rod (330) and a paddle plate (331); the paddle rod (330) and the paddle plate (331) are arranged parallel to the side wing main body (31); One end of the paddle rod (330) is hinged to the side wing main body (31), and the other end thereof is detachably connected to the paddle plate (331); a piston rod end of the smoothing paddle driving hydraulic cylinder (34) is connected to the paddle rod (330).

7. The nuclear power plant tunnel marine growth removal device of claim 1, wherein, The side wing unit (3) further comprises a leakage prevention plate (35) connected between the side wing main body (31) and the chassis (1); the leakage prevention plate (35) is formed with a circular arc surface, and the side wing main body (31) is connected to the circular arc surface.

8. The nuclear power plant tunnel marine growth cleaning apparatus of claim 1, wherein, The conveying unit (2) comprises a mounting plate, a chain rake mechanism and a screw conveying mechanism. The mounting plate is connected to the chassis (1); the chain rake mechanism and the screw conveying mechanism are arranged on the mounting plate; the screw conveying mechanism is arranged on opposite sides of the chain rake mechanism. In the working state, the screw conveying mechanism conveys the marine organisms on the opposite sides of the chain rake mechanism in the direction close to the chain rake mechanism, and the chain rake mechanism concentrates and conveys the marine organisms in the advancing direction of the chassis (1) to the side opposite to the advancing direction of the chassis (1).

9. The nuclear power plant tunnel marine growth removal device of claim 8, wherein, The conveying unit (2) further comprises a first scraper (24) arranged on the mounting plate. The length direction of the first scraper (24) is perpendicular to the advancing direction of the chassis (1), and is obliquely arranged relative to the bottom plane (40) of the seabed water tunnel, forming a guide slope for guiding marine organisms in the advancing direction of the chassis (1) to the chain harrow mechanism.

10. The nuclear power plant tunnel marine growth removal device of claim 8, wherein, The chain harrow mechanism comprises a driving shaft (201), a driven shaft (202), a chain (203), a rack (204) and a driving motor (205). The driving shaft (201) and the driven shaft (202) are arranged in parallel; the driving shaft (201) and the driven shaft (202) are drivingly connected through the chain (203); the rack (204) is arranged on the chain (203); the driving motor (205) is arranged at one end of the driving shaft (201).

11. The nuclear power plant tunnel marine growth removal apparatus of claim 10, wherein, The chain harrow mechanism further comprises a rotating speed sensor (206) arranged between the driving motor (205) and the driving shaft (201).

12. The nuclear power plant tunnel marine growth removal apparatus of claim 10, wherein, The mounting plate comprises a fixed shell (230), a first side plate (231), a second side plate (232) and a bottom plate (233). The fixed shell (230), the first side plate (231) and the second side plate (232) are detachably fixed on the bottom plate (233). The fixed shell (230) is erected on one side of the chain (203) and connected to the chassis (1); the first side plate (231) is connected to a surface of the fixed shell (230); the second side plate (232) is arranged on a side of the first side plate (231) away from the fixed shell (230); the chain (203) and the rack (204) thereon are located between the first side plate (231) and the second side plate (232); a through hole is formed in the second side plate (232) for the driving shaft (201) and the driven shaft (202) to pass through.

13. The nuclear power plant tunnel marine growth removal device of claim 10, wherein, The collecting mechanism further comprises a tension adjusting mechanism (8); the tension adjusting mechanism (8) comprises a base (80), a fixing member (81) and an adjusting bolt (82). The base (80) and the fixing member (81) are arranged on the chassis (1); the base (80) is located on one side of the fixing member (81); one end of the driving shaft (201) is fixed on the base (80); the adjusting bolt (82) is connected between the base (80) and the fixing member (81), and the base (80) and the fixing member (81) are relatively movable along the axial direction of the adjusting bolt (82).

14. The nuclear power plant tunnel marine growth removal device of claim 10, wherein, The screw conveying mechanism comprises a first screw conveying member (21) and a second screw conveying member (22). The first screw conveying member (21) and the second screw conveying member (22) are respectively drivingly connected to opposite ends of the driven shaft (202); wherein the rotational directions of the first screw conveying member (21) and the second screw conveying member (22) are opposite.

15. The nuclear power plant tunnel marine growth removal apparatus of any one of claims 1 to 14, wherein, The collecting mechanism further comprises a second scraping mechanism (9). The second scraping mechanism (9) comprises a mounting shell (90) arranged on the chassis (1) and perpendicular to the advancing direction of the chassis (1), and a second scraper (92) arranged on the mounting shell (90); the second scraper (92) is arranged obliquely relative to the bottom plane (40) of the submarine water intake tunnel and can move back and forth in a direction perpendicular to the bottom plane (40) of the submarine water intake tunnel.

16. The nuclear power plant tunnel marine growth removal apparatus of claim 15, wherein, The second scraping mechanism (9) further comprises a second elastic member (91) and a guide wheel (93) arranged in the mounting shell (90); The second elastic member (91) is abutted between the inner wall of the mounting shell (90) and the second scraper (92); the second scraper (92) is provided with a guide groove (920) in a length direction perpendicular to the bottom plane (40) of the submarine water intake tunnel, and the guide wheel (93) is slidingly fitted in the guide groove (920).

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