CN113643835B - Underwater foreign matter suction device of nuclear power station - Google Patents

Abstract

The invention discloses an underwater foreign matter suction device for a nuclear power station, which comprises a suction cylinder, wherein a plurality of connecting plates are fixed on the inner wall of the bottom inside the suction cylinder, a suction mechanism for sucking underwater dust is fixed through the connecting plates, and a scattering mechanism for scattering underwater sediments is arranged on the outer side of the suction cylinder.

Description

Underwater foreign matter suction device of nuclear power station

Technical Field

The invention relates to the technical field of underwater foreign matter suction of nuclear power stations, in particular to an underwater foreign matter suction device of a nuclear power station.

Background

Foreign matters such as damaged grid fragments of fuel assemblies, fallen bolts and nuts, oxide layers, and foreign matter sediments such as graphite carbon rod powder and metal powder generated during maintenance are easily generated in a reactor container during the operation of a nuclear power plant, and the foreign matters need to be cleaned during overhaul, otherwise, the circulating water quality of a primary circuit is reduced, the fuel assemblies and primary circuit equipment are possibly damaged, and even a pressure side of the primary circuit is damaged.

The existing underwater foreign matter is generally salvaged by adopting a manipulator to grab and other modes, the underwater powder impurity and the like are filtered by pumping water, the mechanical grabbing mode is used for grabbing underwater large-volume static foreign matters, the defect is that the foreign matters must be accurately positioned firstly, the underwater environment of a reactor pool is very complex, the positioning and grabbing difficulty is large, and pumping water is used for extracting the underwater powder impurity, the underwater sediment is generally condensed into blocks, the large-block sediment is difficult to absorb by extraction, the absorption efficiency is low, and therefore, the underwater foreign matter absorption device for the nuclear power station is provided.

Disclosure of Invention

The invention aims to provide a device for sucking underwater foreign matters in a nuclear power station, which can effectively suck massive underwater deposited particles and impurities in the nuclear power station, and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the underwater foreign matter suction device for the nuclear power station comprises a suction barrel, wherein a plurality of connecting plates are fixed on the inner wall of the bottom inside the suction barrel, a suction mechanism used for sucking underwater dust is fixed through the connecting plates, and the scattering mechanism used for scattering underwater sediments is installed on the outer side of the suction barrel.

Preferably, the suction mechanism comprises a separation sleeve fixed with a plurality of connecting plates, a liquid inlet is formed in the bottom of the separation sleeve, a closed plate is installed in the liquid inlet in a rotating mode, a supporting plate is fixed to the top end of the separation sleeve, a filtering component is installed on the supporting plate, a driving component for liquid suction is installed at the top end of the suction sleeve, a sealing sleeve connected with the separation sleeve is sleeved on the bottom of the suction sleeve in a threaded mode, and suction of impurities in water is achieved through the suction mechanism.

Preferably, filtering component is including fixing the prismatic post in the backup pad, prismatic post outside cover has the bottom plate, and prismatic post top is fixed with the spacing post, prismatic post outside cover has the extrusion spring that offsets with bottom plate and backup pad, it has the adapter sleeve to slide in the section of thick bamboo to absorb, and is fixed with the filter screen between adapter sleeve and the bottom plate, adapter sleeve top inboard is fixed with the support frame, and slides in the support frame and peg graft the prismatic cover that has with spacing post looks adaptation, prismatic cover bottom end is fixed with two limiting plates, and prismatic cover top is connected with drive assembly, realizes filtering the impurity particulate matter in the liquid through filtering component to play the collection absorption to aquatic impurity.

Preferably, drive assembly is including fixing the motor frame that absorbs a outside and pegging graft and absorbing the piston bush of a section of thick bamboo top inner wall, be fixed with driving motor on the motor frame, and the driving motor output is fixed with the cam through the shaft coupling, open the cam outside have with the recess of cam outside looks adaptation, and slide in the recess and peg graft and have the spliced pole, two the spliced pole outer end all is fixed with the even board fixed with piston bush inboard looks, the intercommunication has a liquid column in the piston bush, and piston bush bottom is fixed with prism cover top mutually, it has a plurality of liquid outlets to go out the liquid column bottom, and goes out the liquid column inner plug and have the sealed ball with liquid outlet looks adaptation, provides power through drive assembly, makes things convenient for adsorbed impurity.

Preferably, the scattering mechanism comprises a linkage plate, two linkage rods are fixed at the bottom of the linkage plate and are respectively in sliding insertion connection with the two grooves, scattering pieces installed on the outer side of the absorption barrel are fixed at the bottoms of the two ends of the linkage plate, and precipitates are conveniently absorbed through the scattering mechanism.

Preferably, the breaking part is including fixing the mounting panel in absorbing a section of thick bamboo outside, it has the linkage post with linkage board bottom mounting to slide the grafting in the mounting panel, linkage column bottom installs the board of breaing through the articulated elements, it has the removal mouth to break up to open in the board, and removes the intraoral fixed axle of fixing in the grafting that slides of board, it is fixed with the connecting axle to break up the board bottom, and the equal slip cover in connecting axle both ends has a lagging, two the lagging bottom is fixed with breaks up the frame, and two lagging outsides slide the grafting and have the carriage release lever, the carriage release lever outer end is fixed with the backing plate, and the breaking part can be broken up submarine precipitate effectively, conveniently adsorbs to it and collects.

Preferably, the toothed plate is fixed on the inner side of the scattering frame, so that the scattering range of underwater sediments is enlarged.

Preferably, the outer side of the suction barrel is fixed with a connecting rod, so that a person can hold the suction barrel conveniently and can place the suction barrel conveniently.

Preferably, the adapter sleeve outside is fixed with two archs, and absorbs a section of thick bamboo inboard and open and have two and protruding sliding connection's track groove, through protruding and track groove looks adaptation to make the adapter sleeve when shifting up, can rotate, make to rotate the filter screen, make the solid particle of part adhesion on the filter screen can break away from, improve liquid flow efficiency.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, through the designed scattering mechanism, sediments in the water bottom can be effectively scattered, and then the action of the suction mechanism is matched, so that the sediments are scattered and then collected, the collection efficiency is higher, and the collection is more convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the breaking mechanism of the present invention;

FIG. 3 is a schematic view of the structure of the scattering member of the present invention;

FIG. 4 is a schematic view of a driving assembly according to the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a schematic cross-sectional view of an internal suction mechanism of the suction cartridge of the present invention;

FIG. 7 is a schematic view of the position relationship between the separating sleeve and the sucking tube;

FIG. 8 is a schematic view of a filter assembly according to the present invention;

FIG. 9 is a schematic diagram of the position relationship between the limiting post and the prismatic sleeve according to the present invention.

In the figure: 1-a suction cylinder; 2-connecting plates; 3-a suction mechanism; 4-a breaking mechanism; 5-separating sleeve; 6-liquid inlet; 7-a closure plate; 8-a support plate; 9-a filter assembly; 10-a drive assembly; 11-a sealing sleeve; 12-prismatic columns; 13-a base plate; 14-a limiting column; 15-pressing the spring; 16-a connecting sleeve; 17-a filter screen; 18-a support frame; 19-prismatic sleeve; 20-a limiting plate; 21-a motor frame; 22-a piston sleeve; 23-a drive motor; 24-a cam; 25-a groove; 26-connecting column; 27-connecting the plates; 28-liquid outlet column; 29-a liquid outlet; 30-a sealing ball; 31-a linkage plate; 32-a linkage bar; 33-scattering pieces; 34-a mounting plate; 35-a linkage column; 36-a break-up plate; 37-a mobile port; 38-a fixed shaft; 39-a connecting shaft; 40-sheathing; 41-scattering frame; 42-a travel bar; 43-a backing plate; 44-toothed plate; 45-connecting rod; 46-a bump; 47-track groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-7, the illustrated underwater foreign matter suction device for the nuclear power plant includes a suction cylinder 1, a plurality of connection plates 2 are fixed on the inner wall of the bottom inside the suction cylinder 1, a suction mechanism 3 for sucking underwater dust is fixed through the connection plates 2, and a scattering mechanism 4 for scattering underwater sediments is installed outside the suction cylinder 1, wherein a connection rod 45 is fixed outside the suction cylinder 1 for holding and placing the suction cylinder 1.

The suction mechanism 3 comprises a separation sleeve 5 fixed with a plurality of connecting plates 2, a liquid inlet 6 is formed in the bottom of the separation sleeve 5, a closing plate 7 is rotatably installed in the liquid inlet 6, a supporting plate 8 is fixed at the top end of the separation sleeve 5, a filtering assembly 9 is installed on the supporting plate 8, a driving assembly 10 for sucking liquid is installed at the top end of the suction barrel 1, and a sealing sleeve 11 connected with the separation sleeve 5 is sleeved at the bottom of the suction barrel 1 in a threaded manner;

wherein, drive assembly 10 is including fixing the motor frame 21 in the section of thick bamboo 1 outside of absorbing and the piston bush 22 of the section of thick bamboo 1 top inner wall of grafting and absorbing, be fixed with driving motor 23 on the motor frame 21, and driving motor 23 output is fixed with cam 24 through the shaft coupling, open the cam 24 outside has the recess 25 with the outer looks adaptation of cam 24, and slides in the recess 25 and peg graft and have spliced pole 26, two spliced pole 26 outer end all is fixed with the link plate 27 of fixing mutually with piston bush 22 inboard, it has liquid column 28 to lead to in the piston bush 22, and piston bush 22 bottom is fixed mutually with prismatic cover 19 top, it has a plurality of liquid outlets 29 to open liquid column 28 bottom, and goes out the interior stopper of liquid column 28 and have the ball sealer 30 with liquid outlet 29 looks adaptation.

In addition, the scattering mechanism 4 comprises a linkage plate 31, two linkage rods 32 are fixed at the bottom of the linkage plate 31, the two linkage rods 32 are respectively inserted into the two grooves 25 in a sliding manner, and scattering pieces 33 arranged on the outer side of the suction cylinder 1 are fixed at the bottoms of the two ends of the linkage plate 31.

Wherein, the piece 33 of breaing up is including fixing the mounting panel 34 in absorbing a 1 outside, slide in the mounting panel 34 and peg graft and have the linkage post 35 with linkage plate 31 bottom mounting, linkage post 35 bottom is installed through the articulated elements and is broken up board 36, it has removal mouth 37 to break up to open in the board 36, and moves and peg graft in the mouth 37 and have the fixed axle 38 of fixing in absorbing a 1 outside, 36 bottom mountings of board of breaing up have connecting axle 39, and the equal sliding sleeve in connecting axle 39 both ends has lagging 40, two lagging 40 bottom is fixed with the frame 41 of breaing up, and two lagging 40 outside sliding insertion have the carriage release lever 42, the carriage release lever 42 outer end is fixed with backing plate 43, wherein, in order to improve the scope of breaing up, is fixed with pinion rack 44 in the frame 41 inboard of breaing up.

The principle of scattering and collecting the underwater sediments is as follows: firstly, a person places the suction tube 1 under the water of a nuclear power station by using a connecting rod 45, and then drives the cam 24 to rotate by driving a driving motor 23, so that a linkage rod 32 connected with a groove 25 on the outer side of the cam 24 moves along the groove 25 to drive a linkage plate 31 to move up and down, so that a linkage column 35 is driven to move up and down, the scattering plate 36 is pushed to rotate under the limit of a fixed shaft 38, when the linkage column 35 moves downwards, a scattering frame 41 is driven to move outwards, when the linkage column 35 moves upwards, the scattering frame 41 is driven to move inwards, and through the internal and external movement of the scattering frame 41 and a toothed plate 44, underwater sediments are scattered, and the subsequent adsorption and collection are facilitated;

in the scheme, when impurities are adsorbed, the driving motor 23 drives the cam 24 to rotate, so that the piston sleeve 22 moves up and down, the piston sleeve 22 is moved downwards, so that the sealing ball 30 is moved upwards, so that the liquid flows out through the liquid outlet 29, and at the same time, the closing plate 7 is closed under the action of the water pressure, when the piston sleeve 22 moves upwards, the suction tube 1 is in a negative pressure state, so that the sealing ball 30 is attached to the liquid outlet 29 to be blocked, at the same time, under the action of negative pressure, the closing plate 7 is opened, water source and impurities of the nuclear power station enter, and at the same time, in the scheme, the type Y80M1-2 is preferably selected as the driving motor 23, a power supply interface of the motor is connected with a power supply system through a switch, a motor operation circuit is a normal and reverse rotation control program of a conventional motor, the circuit operates as the conventional circuit, circuits and control related in the scheme are the prior art, and redundant description is not repeated herein.

Example 2

Referring to fig. 8 and 9, in this embodiment, as further described in example 1, the suction mechanism 3 in the figure includes a separation sleeve 5 fixed to a plurality of connection plates 2, a liquid inlet 6 is formed at the bottom of the separation sleeve 5, a closing plate 7 is rotatably installed in the liquid inlet 6, a support plate 8 is fixed to the top end of the separation sleeve 5, a filter assembly 9 is installed on the support plate 8, a driving assembly 10 for sucking liquid is installed at the top end of the suction tube 1, and a sealing sleeve 11 connected to the separation sleeve 5 is sleeved at the bottom of the suction tube 1 through a thread;

wherein, filtering component 9 is including fixing the prismatic post 12 on backup pad 8, the cover of prismatic post 12 outside has bottom plate 13, and prismatic post 12 top is fixed with spacing post 14, the cover of prismatic post 12 outside has the extrusion spring 15 that offsets with bottom plate 13 and backup pad 8, it has adapter sleeve 16 to slide in the suction tube 1, and is fixed with filter screen 17 between adapter sleeve 16 and the bottom plate 13, adapter sleeve 16 top inboard is fixed with support frame 18, and slides in the support frame 18 and peg graft and have the prismatic cover 19 with spacing post 14 looks adaptation, prismatic cover 19 bottom mounting has two limiting plates 20, and the prismatic cover 19 top is connected with drive assembly 10.

In this embodiment, in order to collect the impurity particles in the water conveniently, the bottom plate 13 and the connecting sleeve 16 are designed to cooperate with each other, so as to facilitate the circulation of the water flow, and at the same time, the impurity particles can be effectively discharged between the separating sleeve 5 and the inner wall of the bottom of the suction tube 1, wherein, under the action of the cam 24, the prismatic sleeve 19 is driven to move downwards, under the action of the limiting plate 20, the supporting frame 18 and the connecting sleeve 16 are driven to move downwards, so that when the piston sleeve 22 moves downwards, the impurity between the separating sleeve 5 and the suction tube 1 can be prevented from overflowing, when the piston sleeve 22 moves upwards, the prismatic sleeve 19 can not extrude the bottom plate 13, under the action of the extrusion spring 15, the bottom plate 13 moves upwards, so as to facilitate the circulation of the liquid, and simultaneously along with the upward movement of the prismatic sleeve 19, the connecting sleeve 16 is driven to move upwards, so that the filter screen 17 is in an inverted cone structure, so as to facilitate the impurities to enter between the separating sleeve 5 and the inner wall of the suction tube 1, the collection of impurities is convenient.

Example 3

Referring to fig. 8, in the present embodiment, for further explanation of other embodiments, the filter assembly 9 in the figure includes a prismatic column 12 fixed on a support plate 8, a bottom plate 13 is sleeved outside the prismatic column 12, a limiting column 14 is fixed on the top of the prismatic column 12, an extrusion spring 15 abutting against the bottom plate 13 and the support plate 8 is sleeved outside the prismatic column 12, a connection sleeve 16 is inserted in the suction tube 1 in a sliding manner, a filter screen 17 is fixed between the connection sleeve 16 and the bottom plate 13, a support frame 18 is fixed on the inner side of the top end of the connection sleeve 16, a prismatic sleeve 19 adapted to the limiting column 14 is inserted in the support frame 18 in a sliding manner, two limiting plates 20 are fixed on the bottom end of the prismatic sleeve 19, and the top of the prismatic sleeve 19 is connected to the drive assembly 10.

Wherein, two bulges 46 are fixed at the outer side of the connecting sleeve 16, and two track grooves 47 which are connected with the bulges 46 in a sliding way are arranged at the inner side of the suction cylinder 1.

In this embodiment, move in track groove 47 at adapter sleeve 16 through protruding 46 to drive adapter sleeve 16 and rotate, make filter screen 17 twist, avoid filter screen 17 to be blockked up by the particulate matter, improve the circulation of water source.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. An underwater foreign matter suction device for a nuclear power plant, comprising:

the dust collector comprises a suction cylinder (1), wherein a plurality of connecting plates (2) are fixed on the inner wall of the bottom inside the suction cylinder (1), and a suction mechanism (3) for sucking underwater dust is fixed through the connecting plates (2);

a scattering mechanism (4) for scattering underwater sediments is installed on the outer side of an absorption barrel (1), the absorption mechanism (3) comprises a separation sleeve (5) fixed with a plurality of connecting plates (2), a liquid inlet (6) is formed in the bottom of the separation sleeve (5), a closing plate (7) is rotatably installed in the liquid inlet (6), a supporting plate (8) is fixed to the top end of the separation sleeve (5), a filtering component (9) is installed on the supporting plate (8), a driving component (10) for absorbing liquid is installed at the top end of the absorption barrel (1), a sealing sleeve (11) connected with the separation sleeve (5) is sleeved at the bottom of the absorption barrel (1) through threads, the filtering component (9) comprises a prismatic column (12) fixed on the supporting plate (8), a bottom plate (13) is sleeved on the outer side of the prismatic column (12), and a limiting column (14) is fixed to the top of the prismatic column (12), the outer side of the prismatic column (12) is sleeved with an extrusion spring (15) which is abutted against a bottom plate (13) and a supporting plate (8), a connecting sleeve (16) is inserted in the suction cylinder (1) in a sliding manner, a filter screen (17) is fixed between the connecting sleeve (16) and the bottom plate (13), a supporting frame (18) is fixed on the inner side of the top end of the connecting sleeve (16), a prismatic sleeve (19) which is matched with the limiting column (14) is inserted in the supporting frame (18) in a sliding manner, two limiting plates (20) are fixed at the bottom end of the prismatic sleeve (19), the top of the prismatic sleeve (19) is connected with a driving assembly (10), the driving assembly (10) comprises a motor frame (21) fixed on the outer side of the suction cylinder (1) and a piston sleeve (22) inserted in the inner wall of the top end of the suction cylinder (1), a driving motor (23) is fixed on the motor frame (21), and a cam (24) is fixed at the output end of the driving motor (23) through a coupler, the outer side of the cam (24) is provided with a groove (25) matched with the outer side of the cam (24), the groove (25) is internally inserted with connecting columns (26) in a sliding manner, the outer ends of the two connecting columns (26) are respectively fixed with a connecting plate (27) fixed with the inner side of a piston sleeve (22), a liquid outlet column (28) is communicated in the piston sleeve (22), the bottom of the piston sleeve (22) is fixed with the top of a prismatic sleeve (19), the bottom end of the liquid outlet column (28) is provided with a plurality of liquid outlets (29), a sealing ball (30) matched with the liquid outlets (29) is plugged in the liquid outlet column (28), the scattering mechanism (4) comprises a linkage plate (31), the bottom of the linkage plate (31) is fixedly provided with two linkage rods (32), the two linkage rods (32) are respectively inserted in the two grooves (25) in a sliding manner, scattering pieces (33) which are sucked and installed on the outer side of the barrel (1) are fixed at the bottoms of the linkage plate (31), the breaking part (33) comprises a mounting plate (34) fixed on the outer side of the suction barrel (1), a linkage column (35) fixed at the bottom end of a linkage plate (31) is arranged in the mounting plate (34) in a sliding and inserting mode, a breaking plate (36) is arranged at the bottom of the linkage column (35) through an articulating piece, a moving opening (37) is formed in the breaking plate (36), a fixed shaft (38) fixed on the outer side of the suction barrel (1) is arranged in the moving opening (37) in a sliding and inserting mode, a connecting shaft (39) is fixed at the bottom end of the breaking plate (36), sleeve plates (40) are sleeved at two ends of the connecting shaft (39) in a sliding mode, a breaking frame (41) is fixed at the bottom of each sleeve plate (40), a moving rod (42) is arranged on the outer side of each sleeve plate (40) in a sliding and inserting mode, and a backing plate (43) is fixed at the outer end of the moving rod (42).

2. The underwater foreign matter suction device for a nuclear power plant as recited in claim 1, wherein: a toothed plate (44) is fixed on the inner side of the scattering frame (41).

3. The underwater foreign matter suction device for a nuclear power plant as recited in claim 2, wherein: a connecting rod (45) is fixed on the outer side of the suction cylinder (1).

4. The underwater foreign matter suction device for a nuclear power plant as recited in claim 3, wherein: two bulges (46) are fixed on the outer side of the connecting sleeve (16), and two track grooves (47) which are in sliding connection with the bulges (46) are formed in the inner side of the suction cylinder (1).

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