CN116356743A - Nuclear power station tunnel sea biology cleaning device - Google Patents

Abstract

The invention relates to a nuclear power station tunnel marine organism cleaning device, which comprises a chassis and a collecting mechanism, wherein the chassis is movable along the extending direction of a submarine water taking tunnel, and the collecting mechanism is arranged on the chassis and moves along with the chassis; the collecting mechanism comprises a conveying unit and two flank units; the conveying unit is matched with the bottom plane of the submarine water taking tunnel, and is used for intensively conveying marine organisms in the advancing direction of the chassis to the side opposite to the advancing direction of the chassis; the flank units are arranged on two opposite sides of the conveying unit and form an included angle with the conveying unit; the bottom edge of each flank unit is matched with the cambered surface on the inner wall of the tunnel, and the marine organisms on the cambered surface on the inner wall of the tunnel are gathered in the direction close to the conveying unit. Along with the advancing of the chassis, the flank units clean and peel off the marine organisms on the cambered surface of the inner wall of the tunnel and gather the marine organisms to the conveying unit for collection, so that the marine organisms on the inner wall of the tunnel, particularly the cambered surface, can be thoroughly cleaned simply and efficiently.

Description

Nuclear power station tunnel sea biology cleaning device

Technical Field

The invention relates to the technical field of nuclear power station tunnel cleaning, in particular to a nuclear power station tunnel marine organism cleaning device.

Background

After the submarine water taking tunnel (tunnel for short) used by the nuclear power station is used for a long time, a large number of marine organisms grow on the inner wall of the tunnel, and the water taking area of the tunnel can be reduced by the excessive marine organisms, so that the water taking capacity of the tunnel is greatly affected.

The inner wall of the tunnel comprises a bottom plane and cambered surfaces positioned on two sides of the bottom, the cleaning of the sea creatures in the tunnel in the prior art is still manually collected and cleaned, the sea creatures in the tunnel are huge in quantity, and sundries (such as steel bars and stones) are more. Therefore, due to the limitation of manpower and the limitation of tunnel topography structure, marine creatures often exist on the cambered surface of the tunnel inner wall, and the marine creatures on the cambered surface are difficult to collect, so that the marine creatures on the tunnel inner wall can not be thoroughly cleaned.

Disclosure of Invention

The invention aims to solve the technical problem of providing the nuclear power station tunnel marine organism cleaning device capable of gathering and collecting marine organisms on the cambered surface of the inner wall of the tunnel.

The technical scheme adopted for solving the technical problems is as follows: the device comprises a chassis and a collecting mechanism, wherein the chassis is movable along the extending direction of a submarine water taking tunnel, and the collecting mechanism is arranged on the chassis and moves along with the chassis;

The collecting mechanism comprises a conveying unit and two flank units;

the conveying unit is matched with the bottom plane of the submarine water taking tunnel, and the marine organisms in the advancing direction of the chassis are conveyed to the side opposite to the advancing direction of the chassis in a concentrated manner;

the two flank units are respectively arranged on two opposite sides of the conveying unit, and each flank unit and the conveying unit are arranged at an included angle; and the bottom edge of each flank unit is matched with the cambered surface on the inner wall of the submarine water taking tunnel, so that marine organisms on the cambered surface on the inner wall of the submarine water taking tunnel are gathered in the direction approaching to the conveying unit.

Preferably, each of said wing units is hinged to said chassis;

the collecting mechanism further comprises two side wing driving hydraulic cylinders, one end of each side wing driving hydraulic cylinder is connected with the chassis, the opposite end of each side wing driving hydraulic cylinder is connected with one side wing unit, and the side wing units are driven to conduct opening and closing movement.

Preferably, the collecting mechanism further comprises a support wheel provided on the wing unit;

the flank driving hydraulic cylinder is hinged with the flank unit; when the wing units are opened to a working state, the wing driving hydraulic cylinders provide constant pulling force for the wing units.

Preferably, the wing unit is hinged with the chassis by a hinge assembly;

the hinge assembly comprises a pin shaft arranged on the chassis and a sleeve arranged on the flank unit and sleeved with the periphery of the pin shaft; the sleeve and the pin shaft are relatively rotatable in the circumferential direction, and the sleeve and the pin shaft are relatively movable in the axial direction.

Preferably, the hinge assembly further comprises a hinge bracket and a pin shaft seat;

the hinge bracket is arranged on the chassis and is connected with one end of the pin shaft; the pin shaft seat is arranged on the side wing unit and is detachably connected to the opposite end of the pin shaft; a floating gap for the sleeve and the pin shaft to move relatively in the axial direction is formed between the hinge bracket and the sleeve.

Preferably, each of the wing units comprises a wing body, a plurality of first scraping mechanisms;

the flank main body is hinged with the chassis;

the plurality of first scraping mechanisms are distributed at the bottom edge of the flank main body in an arc shape and are matched with the arc surface on the inner wall of the submarine water taking tunnel; and in the working state, each first scraping mechanism is always attached to the cambered surface on the inner wall of the submarine water taking tunnel.

Preferably, each first scraping mechanism comprises a shell arranged on the flank main body, a telescopic main body arranged in the shell, and a scraping plate arranged at the bottom of the telescopic main body;

the telescopic main body comprises a guide shaft and a first elastic piece; one end of the first elastic piece is abutted against the inner top wall of the shell, and the opposite end is abutted against the guide shaft; one end of the guide shaft, which is far away from the first elastic piece, is connected with the scraping plate; the scraping plate can move back and forth along the axial direction of the guide shaft so as to keep a state of being attached to the cambered surface on the inner wall of the submarine water taking tunnel all the time;

the shape of the scraping plate is corresponding to the cambered surface on the inner wall of the submarine water taking tunnel.

Preferably, one end of the guide shaft comprises a first part and a second part which 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;

the opposite end of the first elastic piece is abutted against the shaft shoulder.

Preferably, the telescopic body further comprises a scraper mounting frame;

the scraper blade mounting bracket with the guiding axle is kept away from the one end of first elastic component can dismantle the connection, the scraper blade is installed on the scraper blade mounting bracket.

Preferably, the wing unit further comprises a smoothing paddle and a smoothing paddle driving hydraulic cylinder;

the smoothing paddle comprises a paddle rod and a paddle board; the paddle rod and the paddle board are arranged parallel to the flank main body;

one end of the paddle rod is hinged with the side wing main body, and the opposite end of the paddle rod is detachably connected with the paddle board; and the piston rod end of the smoothing paddle driving hydraulic cylinder is connected with the paddle rod.

Preferably, the wing unit further comprises a leakage preventing plate connected between the wing body and the chassis; the leakage-proof plate is provided with an arc surface which is connected with the flank main body.

Preferably, the conveying unit comprises a mounting plate, a chain rake mechanism and a spiral conveying mechanism;

the mounting plate is connected with the chassis; the chain harrow mechanism and the spiral conveying mechanism are arranged on the mounting plate; the spiral conveying mechanism is arranged on two opposite sides of the chain harrow mechanism;

under the working state, the spiral conveying mechanism conveys the marine organisms positioned on two opposite sides of the chain harrow mechanism along the direction close to the chain harrow mechanism, and the chain harrow mechanism intensively conveys the marine organisms in the advancing direction of the chassis to one side opposite to the advancing direction of the chassis.

Preferably, the conveying unit further includes a first scraper provided on the mounting plate;

the length direction of the first scraper is perpendicular to the advancing direction of the chassis and is obliquely arranged relative to the bottom plane of the submarine water taking tunnel, so that a guiding inclined plane for guiding the marine creatures in the advancing direction of the chassis to the chain harrow mechanism is formed.

Preferably, the chain harrow mechanism comprises a driving shaft, a driven shaft, a chain, a rack and a driving motor;

the driving shaft and the driven shaft are arranged in parallel; the driving shaft and the driven shaft are in transmission connection through the chain; the rack is arranged on the chain; the driving motor is arranged at one end of the driving shaft.

Preferably, the chain rake mechanism further comprises a rotation speed sensor arranged between the driving motor and the driving shaft.

Preferably, the mounting plate comprises a fixed shell, a first side plate, a second side plate and a bottom plate;

the fixed shell, the first side plate and the second side plate are all detachably fixed on the bottom plate;

the fixed shell is erected on one side of the chain and is connected with the chassis; the first side plate is connected to one surface of the fixed shell; the second side plate is arranged on one side of the first side plate far away from the fixed shell; the chain and the rack thereon are positioned between the first side plate and the second side plate; and the second side plate is provided with a through hole for the driving shaft and the driven shaft to pass through.

Preferably, the collection mechanism further comprises a tension adjustment mechanism; the tensioning and adjusting mechanism comprises a base, a fixing piece and an adjusting bolt;

the base and the fixing piece are arranged on the chassis; the base is positioned on one side of the fixing piece; one end of the driving shaft is fixed on the base; the adjusting bolt is connected between the base and the fixing piece, and the base and the fixing piece are relatively movable along the axial direction of the adjusting bolt.

Preferably, the screw conveyor mechanism comprises a first screw conveyor and a second screw conveyor;

the first spiral conveying piece and the second spiral conveying piece are respectively in transmission connection with the two opposite ends of the driven shaft; wherein the first screw conveyor is counter-rotating to the second screw conveyor.

Preferably, the collecting mechanism further comprises a second scraping mechanism;

the second scraping mechanism comprises a mounting shell and a second scraper, the mounting shell is arranged on the chassis and perpendicular to the advancing direction of the chassis, and the second scraper is arranged on the mounting shell; the second scraper is obliquely arranged relative to the bottom plane of the submarine water taking tunnel and can move back and forth in the direction perpendicular to the bottom plane of the submarine water taking tunnel.

Preferably, the second scraping mechanism further comprises a second elastic member and a guide wheel provided in the mounting case;

the second elastic piece is abutted between the inner wall of the mounting shell and the second scraper; the second scraper is provided with a guide groove, the length direction of the guide groove is perpendicular to the bottom plane of the submarine water taking tunnel, and the guide wheel is in sliding fit in the guide groove.

The implementation of the invention has at least the following beneficial effects: along with the advancing of the chassis, the flank units clean and peel off the marine organisms on the cambered surface of the inner wall of the tunnel and gather the marine organisms to the conveying unit for further collection, so that the marine organisms on the inner wall of the tunnel, particularly the cambered surface, can be thoroughly cleaned simply and efficiently.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural view of a nuclear power station tunnel marine organism cleaning device in an operating state according to an embodiment of the present invention;

FIG. 2 is a partial top view of FIG. 1;

FIG. 3 is a partial side view of FIG. 1;

FIG. 4 is a schematic structural view of a hinge assembly of a tunnel marine organism cleaning apparatus of a nuclear power plant according to an embodiment of the present invention;

FIG. 5 is a schematic view of a side wing unit of a tunnel marine organism cleaning apparatus for a nuclear power plant according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a first scraping mechanism of a nuclear power plant tunnel marine organism cleaning apparatus in accordance with an embodiment of the present invention;

FIG. 7 is a schematic structural view of a wing unit of a tunnel marine organism cleaning apparatus of a nuclear power plant according to an embodiment of the present invention at another view angle;

FIG. 8 is a schematic structural view of a conveying unit of a tunnel marine organism cleaning apparatus for a nuclear power plant according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a transfer unit of a nuclear power plant tunnel marine organism cleaning apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic side view of a nuclear power plant tunnel marine organism cleaning apparatus according to an embodiment of the present invention;

FIG. 11 is an enlarged schematic view of portion A of FIG. 10;

FIG. 12 is a schematic view of a second scraping mechanism of a tunnel marine organism cleaning apparatus of a nuclear power plant according to an embodiment of the present invention;

fig. 13 is a schematic longitudinal sectional view of fig. 12.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

It should be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, and may be directly connected or indirectly connected through intervening elements, which may be present "directly" or "indirectly" on another element when it is referred to as being "on" another element, or may also be present. The terms "first" and "second" are used merely for convenience in describing the present technical solution and are not to be construed as indicating or implying relative importance or implying the number of technical features indicated, so that the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to the specific circumstances.

Fig. 1 to 13 show a nuclear power station tunnel marine organism cleaning apparatus according to an embodiment of the present invention, which is used in a submarine water intake tunnel (hereinafter referred to as tunnel) of a nuclear power station. The inner wall of the tunnel comprises a bottom plane 40 and cambered surfaces 41 located on opposite sides of the bottom plane 40.

Please understand the whole with reference to fig. 1-2: the tunnel marine organism cleaning device of the nuclear power station comprises a chassis 1 and a collecting mechanism. The chassis 1 is movable along the extending direction of the tunnel; the collecting mechanism is provided on the chassis 1 and is movable along the extending direction of the tunnel with the chassis 1. The arrows in fig. 2 show the direction of flow of the marine growth deposited material during the advancement of the chassis.

The collecting mechanism comprises a conveying unit 2, two flank units 3.

The conveying unit 2 is adapted to the bottom plane 40 of the tunnel so as to scoop up the marine growth on the bottom plane 40 together with the advancing of the chassis 1, and simultaneously to convey the marine growth in the advancing direction of the chassis 1 to the side opposite to the advancing direction of the chassis 1. Further, a milling mechanism can be arranged behind the conveying unit 2 on the chassis 1, and marine organisms enter the milling mechanism to be further collected and cleaned after being conveyed to the side opposite to the advancing direction of the chassis 1 through the conveying unit 2.

Referring to fig. 3, the milling mechanism includes a housing 7 and a milling unit (not shown) disposed in the housing 7.

The two flank units 3 are respectively arranged at two opposite sides of the conveying unit 2 and are in mirror symmetry, and each flank unit 3 and the conveying unit 2 are arranged at a certain included angle, so that marine organisms at two sides are gathered to the middle, namely to the conveying unit 2 under the blocking of the flank units 3 along with the advancing of the chassis 1. And, the bottom edge of each flank unit 3 is adapted with the cambered surface 41 on the tunnel inner wall, thereby together scooping up the marine creatures on the cambered surface 41 along with the advancing of the chassis 1, and gathering the marine creatures toward the direction approaching the conveying unit 2.

Therefore, as the chassis 1 advances, the flank units 3 clean and peel off the marine organisms on the cambered surface 41 on the inner wall of the tunnel and gather the marine organisms to the conveying unit 2 for further collection, so that the marine organisms on the inner wall of the tunnel, particularly the cambered surface 41, can be thoroughly cleaned simply and efficiently.

In addition, the conveying unit 2 and the flank units 3 are integrally and uniformly arranged on the chassis 1, particularly the flank units 3 can also be arranged on the chassis 1 and run along with the chassis 1, so that the tunnel marine organism cleaning device for the nuclear power station has compact and reasonable structural arrangement, lower cost and lower overall total weight, thereby having lower pressure on a tunnel and avoiding adverse effect on the tunnel structure.

In the present embodiment, each wing unit 3 is hinged to the chassis 1, so that the wing units 3 located at both sides of the conveying unit 2 can perform an opening and closing movement together with respect to the chassis 1 or with respect to the conveying unit 2, and the opening and closing movement can be a horizontal opening and closing movement parallel to the bottom plane 40 of the tunnel.

Before the working state, the two flank units 3 can be contracted, in the working state, the two flank units 3 are unfolded to form a certain included angle with the chassis 1 or with the conveying unit 2, and the size of the included angle can be adjusted through the opening and closing movement of the two flank units 3.

To achieve this opening and closing movement, the collecting mechanism further comprises two wing driving hydraulic cylinders 5. The flank driving hydraulic cylinder 5 is an oil cylinder. One end of each wing driving cylinder 5 is connected to the chassis 1, and the opposite end is connected to one wing unit 3. Each flank driving hydraulic cylinder 5 hydraulically drives one flank unit 3, so that under the drive of the two flank driving hydraulic cylinders 5, the two flank units 3 together perform opening and closing movements relative to the conveying unit 2 or relative to the chassis 1, so as to adjust the size of an included angle formed between the flank units and the conveying unit 2 or between the flank units and the chassis 1.

In this embodiment, the collecting mechanism further comprises a support wheel 6 provided on the wing unit 3.

In particular, the flap unit 3 may comprise a rectilinear upper edge and a rectilinear bottom edge. The junction of the straight upper edge and the curved bottom edge of the wing unit 3 is defined as the tail of the wing unit 3, and the support wheel 6 is provided on the tail of the wing unit 3. The support wheels 6 enable the wing units 3 to roll relative to the cambered surfaces 41 on the inner wall of the tunnel, so that the wing units 3 can be helped to better fit the cambered surfaces 41 on the inner wall of the tunnel and advance along the extending direction of the tunnel together with the chassis 1.

In the process of advancing along with the chassis 1, the flank unit 3 is always attached to the cambered surface 41 on the inner wall of the tunnel through the plurality of first scraping mechanisms 32 at the bottom edge of the flank unit and the supporting wheel 6 at the tail part, so that the running condition change and the position change on the cambered surface 41 of the tunnel can be well adapted.

Meanwhile, the piston rod end of the wing driving hydraulic cylinder 5 is hinged with the wing unit 3, and after the wing unit 3 is opened to a working state, the wing driving hydraulic cylinder 5 provides a constant pulling force for the wing unit 3, and the direction of the constant pulling force is opposite to the advancing direction of the chassis 1, hereinafter referred to as a back pulling force.

Specifically, in the operating state, the chassis 1 first runs to the central axis of the tunnel bottom plane 40 in the width direction, and remains in the middle. The wing unit 3 is hinged with the piston rod end of the wing driving hydraulic cylinder 5 and the chassis 1, and has a certain self-adaptive rotating space. When the chassis 1 moves to one side due to the constant back tension provided by the flank driving hydraulic cylinder 5, the external force applied to the flank unit 3 at the side of deflection exceeds the constant back tension provided by the flank driving hydraulic cylinder 5, so that the flank unit 3 rotates adaptively to balance the external force variation; at the same time, due to the offset of the chassis 1, the wing unit 3 on the other side opposite to the side on which the chassis 1 is biased is subjected to a pushing force opposite to the back-pull force provided by the wing driving cylinders 5, but thanks to the constant back-pull force provided by the wing driving cylinders 5, it can continue to maintain the open state until the supporting wheels 6 are in close contact with the wall of the hole, thus balancing the variation of the external force. Therefore, the whole device for cleaning the tunnel marine creatures of the nuclear power station can be well adapted to running deviation, has good offset self-adaptability, and can reduce running precision requirements.

Further, the supporting wheel 6 can also have a force sense feedback function, so that the pressure generated on the inner wall of the tunnel can be monitored and fed back to the control center. When the pressure generated on the inner wall of the tunnel exceeds a preset limit value, the whole device can be stopped in time. Therefore, the internal gap caused by overlarge local stress on the inner wall of the tunnel is avoided.

In this embodiment, the wing unit 3 is hinged to the chassis 1 by means of a hinge assembly, as shown in fig. 3-4.

The hinge assembly includes a pin 11 provided on the chassis 1, and a sleeve 12 provided on the wing unit 3 and sleeved with the outer circumference of the pin 11. The sleeve 12 and the pin shaft 11 are relatively rotatable in the circumferential direction, and the sleeve 12 and the pin shaft 11 are relatively movable in the axial direction, so that the wing unit 3 can move in an opening and closing mode relative to the chassis 1, and can float up and down relative to the chassis 1 when external force changes, and the self-adaptive floating function is realized so as to adapt to the change of running conditions. In addition, the self-adaptive floating function of the flank units 3 can also avoid internal cracks caused by excessive local stress on the tunnel structure.

Further, the hinge assembly further comprises a hinge bracket 13 and a pin shaft seat 14. The hinge bracket 13 is arranged on the base 80 and is connected with one end of the pin 11 so as to fix one end of the pin 11 on the base 80 through the hinge bracket 13; the pin shaft seat 14 is disposed on the wing unit 3, and can be detachably fixed to the opposite end of the pin shaft 11 by a connecting member such as a bolt, so as to fix the other end of the pin shaft 11 to the wing unit 3.

Wherein, the axial length of the sleeve 12 is smaller than that of the pin 11, so that a floating gap (as shown in fig. 4) for the sleeve 12 and the pin 11 to move axially relative to each other is formed between the hinge bracket 13 and the sleeve 12, so as to realize that the wing unit 3 can float up and down relative to the chassis 1.

As shown in fig. 5 to 6, in the present embodiment, the wing unit 3 includes a wing main body 31, a plurality of first scraping mechanisms 32. The plurality of first scraping mechanisms 32 are arranged at the bottom edge of the flank main body 31 in an arc shape and are matched with the arc surfaces 41 on the inner wall of the tunnel. In the working state, each first scraping mechanism 32 is always attached to the cambered surface 41 on the inner wall of the tunnel.

Specifically, the wing main body 31 may include a linear upper edge and a curved bottom edge, such that the plurality of first scraping mechanisms 32 are arranged along the bottom edge of the wing main body 31 to take on a curved arrangement. Alternatively, a plurality of first scraping mechanisms 32 having different lengths may be sequentially arranged so as to take on a curved arrangement at the bottom edge of the wing main body 31.

Further, each of the first scraping mechanisms 32 includes a housing 320 provided on the wing body 31, a telescopic body provided in the housing 320, and a scraper 321 provided at the bottom of the telescopic body.

The telescopic body includes a guide shaft 323, a first elastic member 324. Wherein the first resilient member 324 may be a spring and may be in a pre-compressed state, providing a pre-compression to the blade 321.

One end of the first elastic member 324 abuts against the inner top wall of the housing 320, and the opposite end abuts against the guide shaft 323. One end of the guide shaft 323, which is far from the first elastic member 324, is connected to the scraper 321.

The shape of the scraper 321 is arranged corresponding to the cambered surface 41 on the inner wall of the tunnel. Specifically, the surface of the scraper 321 in contact with the cambered surface 41 on the inner wall of the tunnel includes a slope and a plane.

Specifically, under the elastic deformation of the first elastic member 324, the scraping plate 321 can move back and forth along the axial direction of the guide shaft 323, so that when the running condition changes or the ground is uneven, the first scraping mechanism 32 can telescopically adjust its own form, so as to always keep the state of being attached to the cambered surface 41 on the inner wall of the tunnel, further, the bottom edge of each wing unit 3 is always attached to and matched with the cambered surface 41 on the inner wall of the tunnel, the running condition change and the position change on the cambered surface 41 of the tunnel can be well adapted, the narrow channel inside the tunnel can be well adapted, and good running control performance is provided.

In addition, when the chassis 1 leans to one side, the positions of the two flank units 3 on the cambered surface 41 inside the tunnel will change, and due to the telescopic adjustment form of the telescopic main body, the first scraping mechanism 32 can telescopically adjust the self-shape to adapt to the radian of the new position on the cambered surface 41 inside the tunnel again, and the adaptation process is natural transition adaptation, so that the flank units 3 can also have better offset adaptation when running in the tunnel from the angle.

Further, one end of the guide shaft 323 includes a first portion and a second portion that are axially joined; the diameter of the first portion is smaller than the diameter of the second portion. The first and second portions of the guide shaft 323 define a shoulder therebetween. The opposite end of the first resilient member 324 abuts against the shoulder to strengthen the secure connection between the guide shaft 323 and the first resilient member 324.

Further, the telescoping body also includes a squeegee mount 322.

One end of the scraper mounting frame 322, which is far away from the first elastic member 324, and the guide shaft 323 are detachably connected through a connecting member such as a bolt, and the scraper 321 is mounted on the scraper mounting frame 322, so that the scraper 321 can be replaced conveniently.

Referring to fig. 7, further, the wing unit 3 further includes a smoothing paddle 33 and a smoothing paddle driving hydraulic cylinder 34. The pacifying paddles 33 serve to pacify the accumulated sea creatures, prevent the sea creatures from accumulating too high to jump over the top of the wing unit 3, while assisting the accumulation of sea creatures towards the middle.

The smoothing paddle 33 includes a paddle lever 330 and a paddle plate 331. The paddle 330 and the paddle 331 are both disposed parallel to the wing body 31. One end of the paddle 330 is hinged to the wing body 31, and the other opposite end is detachably connected to the paddle 331, so that the paddle 331 can be conveniently detached or mounted on the paddle 330 again, and the paddles 331 with different structural forms can be conveniently replaced, and new and old paddles 331 can be conveniently replaced. The piston rod end of the pacifying paddle drive cylinder 34 is connected to a paddle rod 330 for driving the pacifying action of the pacifying paddles 33.

Specifically, along the advancing direction of the chassis 1, the flap main body 31 includes opposite front and back faces 31a and 31b, wherein the front face 31a is closer to the marine growth in the advancing direction than the back face 31b is in direct contact with the marine growth in the advancing direction. The first scraping mechanism 32 is located on the opposite surface 31b of the wing main body 31. While the length direction of the paddle lever 330 and the paddle 331, and the smoothing paddle drive cylinder 34 are all parallel to the front face 31a of the wing body 31. The pacifier paddle 33 is hinged at one end to the front face 31a of the wing body 31 and at the opposite end to the paddle lever 330.

The smoothing paddle 33 and the smoothing paddle drive cylinder 34 are provided on the wing main body 31 at positions close to the top of the wing main body 31. The piston rod end of the smoothing paddle 33 hydraulic cylinder is connected to the middle position in the length direction of the paddle rod 330.

Driven by the smoothing paddle driving hydraulic cylinder 34, the smoothing paddle 33 is reciprocally deflected by taking the hinge point of the smoothing paddle and the flank main body 31 as an axis, and the action can smooth the accumulated marine creatures, and simultaneously assist the marine creatures to gather towards the middle.

Further, the wing unit 3 further includes a leakage preventing plate 35 connected between the wing main body 31 and the chassis 1. Because the wing main body 31 is hinged with the chassis 1, in order to make the rotation space available, a tiny gap is formed between the wing main body 31 and the chassis 1, and the leakage-proof plate 35 is used for transitional connection between the wing main body 31 and the chassis 1, and blocking and sealing the tiny gap so as to prevent marine creatures from leaking from the tiny gap when the wing main body 31 rotates relative to the chassis 1.

To accommodate the rotation locus of the wing unit 3, the leakage preventing plate 35 is formed with a cambered surface 41, and the wing body 31 is connected with the cambered surface 41 thereof. And the arc of the arc surface 41 corresponds to the locus of rotation of the wing main body 31 relative to the chassis 1.

Specifically, as previously described, the flap body 31 includes a straight upper edge and a curved bottom edge, which also includes vertical side edges. The linear upper edge, the arcuate bottom edge, and the vertical side edges together define the overall contour of the flap body 31. Wherein the hinge assembly is provided on a straight upper edge of the wing main body 31. Correspondingly, the cambered surface 41 on the leakage preventing plate 35 connects the vertical side edges of the wing main body 31.

Further, a flexible material may be provided between the cambered surface 41 of the leakage preventing plate 35 and the vertical side edge of the wing main body 31 to further fill the minute gap formed between the sealing wing main body 31 and the chassis 1.

As shown in fig. 8 to 9, in the present embodiment, the conveying unit 2 includes a mounting plate, a chain rake mechanism, and a screw conveying mechanism.

Wherein, the mounting panel provides the installation basis for chain harrow mechanism, screw conveying mechanism. The chain rake mechanism is used for collecting and conveying marine organisms located in the advancing direction of the chassis 1 to the side opposite to the advancing direction of the chassis 1 in a concentrated manner, and can be sent into the milling mechanism for further cleaning. The screw conveying mechanism provides a pushing force for the marine organisms located at the two sides of the chain harrow mechanism in the advancing direction of the chassis 1, and the pushing force is concentrated and close to the chain harrow mechanism. After the marine organisms on the cambered surface 41 are peeled off by the side wing units 3, the side wing units and the screw conveying mechanism can together play a role in gathering the marine organisms to the chain harrow mechanism.

The mounting plate is connected to the chassis 1. The chain harrow mechanism and the screw conveying mechanism are arranged on the mounting plate. The screw conveying mechanism is arranged on two opposite sides of the chain harrow mechanism.

In the working state, the spiral conveying mechanism conveys the marine organisms on two opposite sides of the chain harrow mechanism along the direction close to the chain harrow mechanism, and the chain harrow mechanism intensively conveys the marine organisms in the advancing direction of the chassis 1 to one side opposite to the advancing direction of the chassis 1, so that the marine organisms are intensively gathered to the chain harrow mechanism together with the side wing units 3.

Further, the conveying unit 2 further includes a first scraper 24 provided on the mounting plate.

The first scraper 24 is elongated and directly contacts the marine growth in the advancing direction of the chassis 1. The length direction of the first scraper 24 is perpendicular to the advancing direction of the chassis 1, is obliquely arranged relative to the bottom plane 40 of the tunnel, and is in sealing fit with the bottom plane 40 of the tunnel, so that a guiding inclined plane for guiding the marine creature in the advancing direction of the chassis 1 to the chain harrow mechanism is formed. Specifically, after the marine life in the advancing direction of the chassis 1 is scooped up at the first blade 24 and passes through the guide slope, a part is fed into the chain rake mechanism by the screw conveyor mechanism, and the other part directly enters the chain rake mechanism.

In this embodiment, the chain rake mechanism includes a driving shaft 201, a driven shaft 202, a chain 203, a rack 204, and a driving motor 205 (see fig. 2). The driving shaft 201 and the driven shaft 202 are arranged in parallel and are in transmission connection through a chain 203. The rack 204 is fixed to the chain 203. An output end of the driving motor 205 is connected to one end of the driving shaft 201.

Specifically, the drive motor 205 may control the drive shaft 201 to rotate in two opposite directions (forward or reverse). During forward rotation, the torque input from the driving shaft 201 is sequentially transmitted to the chain 203 and the driven shaft 202, the rack 204 rotates along with the chain 203, the marine creature is stirred to move along the moving direction of the chain 203, and the marine creature is pushed into the milling mechanism backwards. When the marine organisms accumulate too much or are doped with impurities to cause the clamping stagnation of each part of the chain harrow mechanism, a reversing signal is sent to the driving motor 205 to control the driving shaft 201 to reversely rotate, so that the marine organisms in the chain harrow mechanism can be reversely pushed out, and the problem of the clamping stagnation of each part of the chain harrow mechanism is solved.

Further, the chain rake mechanism further includes a rotation speed sensor 206 (see fig. 2 and 11), and the rotation speed sensor 206 is disposed between the driving motor 205 and the driving shaft 201 and connected to the control center to feed back the output rotation speed at the driving shaft 201 for detecting whether the chain rake mechanism rotates normally.

Specifically, when the marine organisms accumulate too much or are doped with impurities to cause the jamming of each component of the chain harrow mechanism, the jamming phenomenon at the chain harrow mechanism can be known through the change of the rotating speed signal received by the rotating speed sensor 206, so that the driving motor 205 can be controlled to change direction, the reverse rotation is started to solve the jamming problem, or the manual intervention is performed on the site after the whole device is stopped to solve the jamming problem.

Further, the mounting plate includes a fixing case 230, a first side plate 231, a second side plate 232, and a bottom plate 233. The first scraper 24 is installed on the forefront side of the bottom plate 233 to directly contact the marine life in the advancing direction.

Specifically, the fixing case 230, the first side plate 231, and the second side plate 232 are detachably fixed to the bottom plate 233. The fixing case 230 stands on one side of the chain 203 and is fixedly installed on the chassis 1. The fixed housing 230 may be mounted on the housing 7 of the milling mechanism and thus indirectly on the chassis 1. The first side plate 231 abuts against a surface of the fixing case 230 and is fixedly coupled to a surface of the fixing case 230 by a coupling member such as a bolt. The second side plate 232 is disposed at a side of the first side plate 231 remote from the fixing case 230. The first side plate 231 and the second side plate 232 are vertical plates, and the chain 203 and the rack 204 thereon are restrained between the first side plate 231 and the second side plate 232. The second side plate 232 is provided with through holes for the driving shaft 201 and the driven shaft 202 to pass through, and the driving shaft 201 and the driven shaft 202 pass through the through holes and are arranged in parallel. The driving force generated by the driving shaft 201 is transmitted to the driven shaft 202 through the chain 203, so that the chain 203 and the rack 204 thereon rotate, and the driven shaft 202 rotates.

In the working state, after the marine creature in the advancing direction of the chassis 1 passes through the guiding inclined plane on the first scraper 24, the marine creature enters the rack 204 on the chain 203 and is stirred, and is conveyed to the side opposite to the advancing direction of the chassis 1 along with the rotation of the chain 203, and enters the milling mechanism to be further cleaned.

Further, the screw conveyor mechanism includes a first screw conveyor 21 and a second screw conveyor 22. To accommodate the configuration of the milling mechanism and other components on the base 80, the first and second augers 21, 22 are offset, with the length of the first augers 21 being greater than the length of the second augers 22 so that the chain rake mechanism assumes an offset configuration.

The first screw conveyor 21 and the second screw conveyor 22 are respectively in driving connection with opposite ends of the driven shaft 202. Wherein the first screw conveyor 21 is counter-rotating to the second screw conveyor 22.

Specifically, the first screw conveyor 21 includes a first rotation shaft and first screw blades provided on the peripheral surface thereof, and the second screw conveyor 22 includes a second rotation shaft and second screw blades provided on the peripheral surface thereof. The first screw conveyor 21 is in driving connection with one end of the driven shaft 202 by its first rotation axis, and the second screw conveyor 22 is in driving connection with the other end of the driven shaft 202 by its second rotation axis. That is, the first rotation shaft, the second rotation shaft, and the driven shaft 202 are rotated in the same direction in synchronization. The spiral extending direction of the first spiral blade along the first rotating shaft is opposite to the spiral extending direction of the second spiral blade along the second rotating shaft, so that the first spiral conveying element 21 and the second spiral conveying element 22 can rotate in opposite directions under the condition of coaxial same rotation.

Thus, in the working state, after the driving motor 205 on the driving shaft 201 is turned on, marine organisms located at both sides of the chain rake mechanism are respectively transported to the middle chain rake mechanism by the first screw conveyor 21 and the second screw conveyor 22, which are opposite in rotation, in the advancing direction of the chassis 1.

Further, the first screw conveyor 21 is disposed near between the first side plate 231 and the fixing case 230. Specifically, the first side plate 231 is provided with a through hole through which the first rotating rod passes, opposite ends of the first rotating rod are respectively connected with the fixed shell 230 and the first side plate 231, and one end of the first rotating rod passes through the through hole on the first side plate 231 and is in transmission connection with the driven shaft 202. The second screw conveyor 22 has one end fixed to the second side plate 232 and the other end in driving connection with the driven shaft 202.

Therefore, the normal operation of the screw conveying mechanism and the chain harrow mechanism can be realized simultaneously by only one driving motor 205, and the screw conveying mechanism and the chain harrow mechanism have compact and reasonable arrangement forms on the premise of playing respective roles. It will be appreciated that in other embodiments, the screw conveyor mechanism and the chain rake mechanism may take other arrangements and be correspondingly adapted to different drive configurations, provided that they perform their respective functions.

Referring to fig. 10 to 11, further, the collecting mechanism further includes a tensioning adjustment mechanism 8 for tensioning the driving shaft 201 of the chain rake mechanism. The tension adjusting mechanism 8 includes a base 80, a fixing member 81, and an adjusting bolt 82. The base 80 and the fixing member 81 are provided on the chassis 1.

Correspondingly, the housing 7 is arranged on the chassis 1. Correspondingly, the base 80 may be fixed to the housing 7 of the milling mechanism. That is, the base 80 is indirectly arranged on the chassis 1 via the housing 7 of the milling mechanism.

The base 80 is located at one side of the fixing member 81. One end of the driving shaft 201 passes through the base 80 through a shaft hole in the base 80 and is fixed to 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 in the axial direction of the adjusting bolt 82.

Specifically, the fixing member 81 is C-shaped, and is provided with a hole through which the adjusting bolt 82 passes. The base 80 is provided with a protruding block protruding relative to the base 80, and the protruding block is also provided with a hole for the adjusting bolt 82 to pass through. The two ends of the adjusting bolt 82 respectively pass through the fixing piece 81 and the holes on the protruding blocks to connect the protruding blocks and the fixing piece 81. The base 80 is also provided with a plurality of long slot holes 801 for limiting the moving direction of the base 80, and the length direction of the long slot holes 801 is consistent with the length direction of the adjusting bolts 82. The housing 7 of the milling mechanism is provided with a connecting hole 802, and a connecting piece such as a bolt can sequentially pass through the long slot 801 and the connecting hole 802 to fix the base 80 on the housing 7 of the milling mechanism. Meanwhile, by screwing the adjusting bolt 82, the distance between the base 80 and the fixing piece 81 is changed, the base 80 can move back and forth along the length direction of the long groove hole 801 (namely, the length direction of the adjusting bolt 82), and the driving shaft 201 on the base 80 can be tensioned and adjusted, so that the tension of the chain harrow mechanism is adjusted.

Referring to fig. 3, 12 and 13, the collecting mechanism in the present embodiment further includes a second scraping mechanism 9.

The second scraping mechanism 9 includes a mounting case 90 provided on the chassis 1 and disposed perpendicular to the advancing direction of the chassis 1, and a second scraper 92 provided on the mounting case 90. The mounting housing 90 includes an upper cover 901 and a bottom housing 902 that are connected, the upper cover 901 and bottom housing 902 together enclosing a cavity for receiving the second scraper 92.

The second scraping means 9 may be mounted on the housing 7 of the milling mechanism, so as to be indirectly arranged on the chassis 1. The mounting housing 90 is used to provide a mounting base for a second scraper 92.

The second scraper 92 is arranged obliquely with respect to the bottom plane 40 of the tunnel and is movable back and forth in a direction perpendicular to the bottom plane 40 of the tunnel.

Specifically, as the chassis 1 advances, the second scraper 92 scrapes and cleans marine organisms on the bottom plane 40 of the tunnel. The scraped marine life passes through the inclined surface of the second scraper 92 and is pushed forward to the conveying unit 2 for concentrated collection. In addition, the second scraper 92 can move back and forth in the direction perpendicular to the bottom plane 40 of the tunnel, so that the second scraper 92 has the function of retreating and avoiding when encountering hard objects, and can be well adapted to the uneven condition of the bottom plane 40 in the tunnel.

Further, the second scraping mechanism 9 further includes a second elastic member 91 and a guide wheel 93 provided in the mounting case 90.

The second elastic member 91 abuts between the inner wall of the mounting case 90 and the second scraper 92. The second scraper 92 is provided with a guide groove 920, the length direction of the guide groove 920 is perpendicular to the bottom plane 40 of the tunnel, and the guide wheel 93 is in sliding fit in the guide groove 920.

Specifically, the second elastic member 91 may be a spring. And before entering into working state, the second elastic member 91 may be in a pre-compressed form, and has a pre-pressure, so that the second scraper 92 is pushed to generate the pre-pressure on the bottom plane 40 of the tunnel, so that the bottom plane 40 can be cleaned efficiently, and the cleaned bottom plane 40 has higher cleanliness.

It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (20)

1. The device for cleaning the marine organisms of the tunnel of the nuclear power station is characterized by comprising a chassis (1) which is movable along the extending direction of the submarine water taking tunnel and a collecting mechanism which is arranged on the chassis (1) and moves along with the chassis (1);

the collecting mechanism comprises a conveying unit (2) and two flank units (3);

the conveying unit (2) is matched with the bottom plane (40) of the submarine water taking tunnel, and is used for intensively conveying marine organisms in the advancing direction of the chassis (1) to the side opposite to the advancing direction of the chassis (1);

the two flank units (3) are respectively arranged on two opposite sides of the conveying unit (2), and each flank unit (3) and the conveying unit (2) form an included angle; and the bottom edge of each flank unit (3) is matched with an arc surface (41) on the inner wall of the submarine water taking tunnel, so that marine organisms on the arc surface (41) on the inner wall of the submarine water taking tunnel are gathered in a direction approaching to the conveying unit (2).

2. A plant tunnel marine organism cleaning apparatus according to claim 1, characterized in that each of the flank units (3) is hinged to the chassis (1);

the collecting mechanism further comprises two side wing driving hydraulic cylinders (5), one end of each side wing driving hydraulic cylinder (5) is connected with the chassis (1), the other opposite end is connected with one side wing unit (3), and the side wing unit (3) is driven to conduct opening and closing movement.

3. A plant tunnel marine organism cleaning apparatus according to claim 2, characterized in that the collecting means further comprises a support wheel (6) provided on the flank unit (3);

the flank driving hydraulic cylinder (5) is hinged with the flank unit (3); when the wing unit (3) is opened to an operating state, the wing driving hydraulic cylinder (5) provides constant pulling force for the wing unit (3).

4. The plant tunnel marine organism cleaning apparatus according to claim 2, characterized in that the flank unit (3) is hinged with the chassis (1) by a hinge assembly;

the hinge assembly comprises a pin shaft (11) arranged on the chassis (1), and a sleeve (12) arranged on the flank unit (3) and sleeved with the periphery of the pin shaft (11); the sleeve (12) and the pin (11) are rotatable relative to each other in the circumferential direction, and the sleeve (12) and the pin (11) are movable relative to each other in the axial direction.

5. The tunnel marine organism cleaning apparatus of a nuclear power plant according to claim 4, wherein the hinge assembly further comprises a hinge bracket (13), a pin mount (14);

the hinge bracket (13) is arranged on the chassis (1) and is connected with one end of the pin shaft (11); the pin shaft seat (14) is arranged on the flank unit (3) and is detachably connected to the opposite end of the pin shaft (11); a floating gap for the relative movement of the sleeve (12) and the pin shaft (11) in the axial direction is formed between the hinge bracket (13) and the sleeve (12).

6. The plant tunnel marine organism cleaning apparatus according to claim 1, wherein each of the wing units (3) comprises a wing body (31), a plurality of first scraping mechanisms (32);

the flank body (31) is hinged with the chassis (1);

the plurality of first scraping mechanisms (32) are arranged at the bottom edge of the flank main body (31) in an arc shape and are matched with an arc surface (41) on the inner wall of the submarine water taking tunnel; under the working condition, each first scraping mechanism (32) is always attached to an arc surface (41) on the inner wall of the submarine water taking tunnel.

7. The nuclear power plant tunnel marine organism cleaning apparatus as claimed in claim 6, wherein each of the first scraping mechanisms (32) comprises a housing (320) provided on the wing body (31), a telescopic body provided in the housing (320), and a scraper (321) provided at a bottom of the telescopic body;

the telescopic body comprises a guide shaft (323) and a first elastic piece (324); one end of the first elastic piece (324) is abutted against the inner top wall of the shell (320), and the opposite end is abutted against the guide shaft (323); one end of the guide shaft (323) far away from the first elastic piece (324) is connected with the scraping plate (321); the scraping plate (321) can move back and forth along the axial direction of the guide shaft (323) so as to keep a state of being always attached to an arc surface (41) on the inner wall of the submarine water taking tunnel;

The shape of the scraping plate (321) is corresponding to the cambered surface (41) on the inner wall of the submarine water taking tunnel.

8. The nuclear power plant tunnel marine organism cleaning apparatus of claim 7 wherein one end of said guide shaft (323) comprises first and second axially joined portions; 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;

the opposite end of the first elastic piece (324) is abutted against the shaft shoulder.

9. The nuclear power plant tunnel marine organism cleaning apparatus of claim 7 wherein said telescoping body further comprises a scraper mounting bracket (322);

the scraper blade mounting frame (322) with the one end that guiding axle (323) kept away from first elastic component (324) can dismantle the connection, scraper blade (321) are installed on scraper blade mounting frame (322).

10. The plant tunnel marine organism cleaning apparatus according to claim 6, characterized in that the flank unit (3) further comprises a smoothing paddle (33), a smoothing paddle drive hydraulic cylinder (34);

the smoothing paddle (33) comprises a paddle rod (330) and a paddle board (331); -the paddle lever (330) and paddle plate (331) are arranged parallel to the wing body (31);

One end of the paddle rod (330) is hinged with the flank main body (31), and the opposite end of the paddle rod is detachably connected with the paddle plate (331); the piston rod end of the smoothing paddle driving hydraulic cylinder (34) is connected with the paddle rod (330).

11. -the plant tunnel marine organism cleaning device according to claim 6, characterized in that the wing unit (3) further comprises a leakage protection plate (35) connected between the wing body (31) and the chassis (1); the leakage-proof plate (35) is provided with an arc surface, and the arc surface is connected with the flank main body (31).

12. The tunnel marine organism cleaning device of a nuclear power plant according to claim 1, characterized in that the conveying unit (2) comprises a mounting plate, a chain rake mechanism, a screw conveying mechanism;

the mounting plate is connected with the chassis (1); the chain harrow mechanism and the spiral conveying mechanism are arranged on the mounting plate; the spiral conveying mechanism is arranged on two opposite sides of the chain harrow mechanism;

under the working state, the spiral conveying mechanism conveys the marine organisms positioned on two opposite sides of the chain harrow mechanism along the direction close to the chain harrow mechanism, and the chain harrow mechanism intensively conveys the marine organisms in the advancing direction of the chassis (1) to one side opposite to the advancing direction of the chassis (1).

13. The plant tunnel marine organism cleaning apparatus according to claim 12, characterized in that the transport 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 submarine water taking tunnel, so that a guiding inclined plane for guiding the marine creatures in the advancing direction of the chassis (1) to the chain harrow mechanism is formed.

14. The nuclear power plant tunnel marine organism cleaning apparatus of claim 12, wherein the chain rake 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 in transmission connection through the chain (203); the rack (204) is arranged on the chain (203); the drive motor (205) is disposed at one end of the drive shaft (201).

15. The plant tunnel marine organism cleaning apparatus of claim 14, wherein the chain rake mechanism further comprises a rotational speed sensor (206) arranged between the drive motor (205) and the drive shaft (201).

16. The nuclear power plant tunnel marine organism cleaning apparatus of claim 14 wherein the mounting plate comprises a stationary housing (230), a first side plate (231), a second side plate (232), a bottom plate (233);

the fixed shell (230), the first side plate (231) and the second side plate (232) are all detachably fixed on the bottom plate (233);

the fixed shell (230) is erected on one side of the chain (203) and is connected with the chassis (1); the first side plate (231) is connected to one surface of the fixed shell (230); the second side plate (232) is arranged at one side of the first side plate (231) far away from the fixed shell (230); the chain (203) and the rack (204) thereon are positioned between the first side plate (231) and the second side plate (232); and the second side plate (232) is provided with a through hole for the driving shaft (201) and the driven shaft (202) to pass through.

17. The plant tunnel marine organism cleaning apparatus according to claim 14, characterized in that the collecting means further comprises a tensioning adjustment means (8); the tensioning and adjusting mechanism (8) comprises a base (80), a fixing piece (81) and an adjusting bolt (82);

the base (80) and the fixing piece (81) are arranged on the chassis (1); the base (80) is positioned on one side of the fixing piece (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 piece (81), and the base (80) and the fixing piece (81) are relatively movable along the axial direction of the adjusting bolt (82).

18. The plant tunnel marine organism cleaning apparatus according to claim 14, wherein the screw conveyor mechanism comprises a first screw conveyor (21) and a second screw conveyor (22);

the first spiral conveying piece (21) and the second spiral conveying piece (22) are respectively in transmission connection with the two opposite ends of the driven shaft (202); wherein the first screw conveyor (21) and the second screw conveyor (22) are counter-rotating.

19. A plant tunnel marine organism cleaning apparatus according to any one of claims 1-18, characterized in that the collecting means further comprises a second scraping means (9);

the second scraping mechanism (9) comprises a mounting shell (90) which is arranged on the chassis (1) and is perpendicular to the advancing direction of the chassis (1), and a second scraper (92) which is 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 is movable back and forth in a direction perpendicular to the bottom plane (40) of the submarine water intake tunnel.

20. The plant tunnel marine organism cleaning apparatus according to claim 19, characterized in that the second scraping means (9) further comprises a second elastic member (91) and a guide wheel (93) arranged inside the mounting shell (90);

The second elastic piece (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), the length direction of the guide groove (920) is perpendicular to the bottom plane (40) of the submarine water taking tunnel, and the guide wheel (93) is in sliding fit in the guide groove (920).

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