CN217781951U - Sewage blocking grid for water intake of nuclear power plant - Google Patents
Sewage blocking grid for water intake of nuclear power plant Download PDFInfo
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- CN217781951U CN217781951U CN202221642548.2U CN202221642548U CN217781951U CN 217781951 U CN217781951 U CN 217781951U CN 202221642548 U CN202221642548 U CN 202221642548U CN 217781951 U CN217781951 U CN 217781951U
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Abstract
The utility model relates to a nuclear power plant's intake trash rack, trash rack include grid main part, direction main part and vertical grid, and the direction main part includes the direction grid, and direction grid and vertical grid form slant guide way and vertical guide way respectively in the grid main part, and the device of decontaminating slides to vertical guide way in via the slant guide way, then the vertical lapse of vertical guide way is followed to the device of decontaminating, will adhere to the filth scraping on the trash rack simultaneously to the circulation of rivers is guaranteed to the clearance trash rack. The utility model discloses a trash rack can arrange perpendicularly in the hydroecium bottom, and the installation of being convenient for has realized that no guide rail trash cleaning device machinery is decontaminated, has simplified the structural design of trash cleaning device, practices thrift the cost, can carry out daily trash cleaning simply high-efficiently, ensures the security simultaneously, and the trash cleaning process does not destroy the trash rack finish paint to the result of use of maintaining the trash rack, the life of extension trash rack can also cooperate special lifting means simultaneously, carries out high-efficient handling to the whole, realizes manual maintenance.
Description
Technical Field
The utility model relates to a trash rack field, more specifically say, relate to nuclear power plant's intake trash rack.
Background
The circulating water filtering system plays an important role in filtering seawater in a nuclear power plant and is an important system for guaranteeing the safety of a cold source of the power plant. Wherein thick grid is the first filtration barrier behind circulating water filtration system water intaking forebay water intaking, and the main function is interception aquatic floater, avoids medium and large-scale filth to get into rear end filtration equipment and causes the jam. After the coarse grating works for a period of time, various weeds and plastic flexible floaters are adsorbed on the grating bars, various marine organisms breed and spread on the grating bars, the blocking area of the coarse grating is gradually enlarged, and once the coarse grating blocks the large area, the normal operation of the nuclear power station is seriously influenced.
Because the coarse grid area is about 20 meters below the ground and has a certain water flow speed, in order to ensure the operation safety of operating personnel and power stations, personnel and related cleaning ships are forbidden to clean the coarse grid area. Therefore, the system design does not consider the monitoring function of the water level difference between the front and the rear of the coarse grating and the cleaning function of blocking dirt in daily period, and the water gate is only closed in the overhaul period of the unit and then is lifted out from the hoisting port to carry out maintenance such as manual cleaning, paint repair and the like.
Because above-mentioned fortune dimension tactics, the rectangle frame that current thick grid adopted the horizontal and vertical steel construction to build arranges perpendicularly in the hydroecium bottom to set up thick grid hoist and mount guide rail in hydroecium both sides.
In recent years, as the situation of heavy repair, the dirt blocking of the coarse grating is serious and has a tendency to be aggravated, the research on the daily cleaning scheme and device of the coarse grating is gradually carried out. It has been found through research that the existing structure and arrangement of the coarse grating still causes great limitation in the application of the conventional decontamination apparatus.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, a nuclear power plant's intake trash rack is provided.
The utility model provides a technical scheme that its technical problem adopted is: constructing a sewage barrier at a water intake of a nuclear power plant, wherein the sewage barrier comprises a grid main body, a guide main body and vertical grid bars;
grid holes are distributed on the grid main body, and the guide main body comprises guide grid bars;
a plurality of guide grid bars are arranged at intervals at the top end of the grid main body along the width direction, the guide grid bars are obliquely arranged, and a plurality of oblique guide grooves are formed between two adjacent guide grid bars in the width direction;
a plurality of vertical grid bars are arranged on the front side of the grid main body at intervals along the width direction, the vertical grid bars are vertically arranged, and a plurality of vertical guide grooves are formed between two adjacent vertical grid bars in the width direction;
the oblique guide groove is communicated with the vertical guide groove.
In some embodiments, the guide body further comprises a connecting bar;
a plurality of connecting grid bars are arranged on the front side of the grid main body at intervals along the width direction, and a plurality of connecting guide grooves are formed between every two adjacent connecting grid bars in the width direction;
the slant guide way with vertical guide way is through being connected the guide way intercommunication, connect the guide way upper end with slant guide way lower extreme intercommunication, connect the guide way lower extreme with vertical guide way intercommunication for the device direction of decontaminating.
In some embodiments, the trash rack further comprises an oblique roller limiting structure for obliquely guiding the trash removal device, and the oblique roller limiting structure is arranged in the oblique guide groove.
In some embodiments, the oblique roller limiting structure includes a plurality of oblique roller limiting assemblies, each oblique roller assembly includes an oblique roller and an oblique roller, the oblique roller is located between two adjacent guide grids, two ends of the oblique roller are respectively connected to the two adjacent guide grids, and the oblique roller is sleeved outside the oblique roller.
In some embodiments, the trash rack further comprises a vertical roller limiting structure for vertically guiding the trash removal device, and the vertical roller limiting structure is arranged in the vertical guide groove.
In some embodiments, the vertical roller limiting structure includes a plurality of vertical roller limiting assemblies, each vertical roller assembly includes a vertical roller and a vertical roller, the vertical roller is located between two adjacent vertical grids, two ends of the vertical roller are respectively connected with the two adjacent vertical grids, and the vertical roller is sleeved outside the vertical roller.
In some embodiments, the oblique roller limiting structures are arranged in at least two of the oblique guide grooves, and the oblique roller limiting structure in each oblique guide groove comprises at least one group of oblique roller limiting assemblies arranged along a guide direction;
the vertical roller limiting structures are arranged in the at least two vertical guide grooves, and each vertical roller limiting structure in each vertical guide groove comprises at least one group of vertical roller limiting assemblies arranged along the guide direction.
In some embodiments, the grid body is provided with a plurality of transverse grids at intervals in the vertical direction, the vertical grids and the transverse grids are staggered to form a plurality of grid holes, and each vertical roller limiting assembly is as high as one transverse grid.
In some embodiments, the diagonal roller radius is greater than the vertical roller radius.
In some embodiments, the trash rack is characterized by further comprising a hoisting structure, the hoisting structure comprises a safety probe rod and a hoisting ring, the safety probe rod and the hoisting ring are both located in the middle of the top end of the grid main body, an avoidance space is reserved in the middle of the top end of the grid main body by the guide grid bars and is used for a hoisting device to hoist the hoisting ring so as to avoid the guide grid bars from interfering with the hoisting device, the safety probe rod is in contact with the hoisting device when the hoisting device hoists, so that the locking and releasing states of the hoisting ring are controlled, and meanwhile, the height of the connecting grid bar is not greater than that of the hoisting ring so as to meet the normal operation of the hoisting ring;
the trash rack further comprises a supporting piece, and the supporting piece is connected with the guide grid bars to support the guide grid bars.
Implement the utility model discloses a nuclear power plant's intake trash rack has following beneficial effect: the trash rack can be arranged perpendicularly in the hydroecium bottom, and the installation of being convenient for has realized that no guide rail trash cleaning device machinery is decontaminated, simplifies the structural design of trash cleaning device, practices thrift the cost, can carry out daily trash cleaning simply high-efficiently, ensures the security simultaneously, and the trash cleaning process does not destroy the trash rack finish paint, maintains the result of use of trash rack to the life of extension trash rack can also cooperate special lifting tool simultaneously, carries out high-efficient handling to the whole, realizes artifical maintenance.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a front view of a trash rack in an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a trash rack according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of the trash rack in the embodiment of the present invention;
fig. 4 is a partial enlarged view of B in a front view of the trash rack in the present novel embodiment of use.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, in the present embodiment, the trash rack includes a grid body 1, a guide body 2, and vertical bars 3, and the guide body 2 includes guide bars 21 and connection bars 22.
Grid main part 1 is the major structure of trash rack, and the filth in the rivers is intercepted to grid main part 1, guarantees that rivers pass through to avoid the filth to cause the harm to equipment structure in entering into the equipment structure behind the trash rack.
A plurality of guide grids 21 are arranged at intervals on the top end of the grid main body 1 along the width direction, the guide grids 21 are obliquely arranged, and a plurality of oblique guide grooves 211 are formed between two adjacent guide grids 21 in the width direction so that the dirt cleaning device can slide down smoothly.
A plurality of vertical bars 3 have been arranged along the width direction interval in grid main part 1 front side, and vertical bar 3 is vertical to be set up, forms a plurality of vertical guide ways 31 at width direction between double-phase adjacent vertical bar 3 to supply the vertical slip of scrubbing device.
A plurality of connecting grids 22 are arranged at intervals along the width direction at the front side of the grid main body 1, and a plurality of connecting guide grooves 221 are formed between two adjacent connecting grids 22 in the width direction so as to communicate the inclined guide grooves 211 with the vertical guide grooves 31.
The oblique guide groove 211 is communicated with the vertical guide groove 31 through the connecting guide groove 221, the lower end of the oblique guide groove 211 is communicated with the upper end of the connecting guide groove 221 firstly, then, the lower end of the connecting guide groove 221 is communicated with the upper end of the vertical guide groove 31, the oblique guide groove 211 is obliquely guided by the dirt cleaning device, the vertical guide groove 31 is vertically guided by the dirt cleaning device, and the connecting guide groove 221 guides the dirt cleaning device to the vertical guide groove 31 from the oblique guide groove 211.
In this embodiment, the device of decontaminating slides to vertical guide way 31 in via slant guide way 211, connection guide way 221, then the device of decontaminating continues to follow vertical guide way 31 and vertically slides down, will be attached to the filth on the trash rack simultaneously and scrape off to the circulation of clearance trash rack, assurance rivers.
In other embodiments, the trash rack may not be provided with the connecting bars 22, and the inclined guide grooves 211 directly communicate with the vertical guide grooves 31 to guide the trash removing device.
As shown in fig. 1 and 3, in some embodiments, an oblique roller limiting structure 4 for performing oblique guiding on the dirt removing device is disposed in the oblique guiding groove 211, the oblique roller limiting structure 4 includes a plurality of oblique roller limiting components 41, each oblique roller limiting component 41 includes an oblique roller 411 and an oblique roller 412, the oblique roller 411 is located between two adjacent guiding grids 21, two ends of the oblique roller 411 are respectively connected to two adjacent guiding grids 21, and the oblique roller 412 is sleeved outside the oblique roller 411.
Preferably, the oblique roller 411 may be fixed between two adjacent guide bars 21 by an oblique bolt 413. In other embodiments, the oblique roller 411 may be fixed between two adjacent guiding bars 21 by a pin, or the guiding bars 21 may be provided with a groove for the oblique roller 411 to be inserted and fixed.
In this embodiment, oblique roller limiting structures 4 are disposed in the two oblique guide grooves 211, and the oblique roller limiting structures 4 in each oblique guide groove 211 include a plurality of sets of oblique roller limiting assemblies 41 arranged along the guide direction.
In other embodiments, the oblique roller limiting structures 4 may be disposed in one or more of the oblique guide grooves 211, and the oblique roller limiting structure 4 in each of the oblique guide grooves 211 includes one or more sets of oblique roller limiting assemblies 41 arranged along the guiding direction.
As shown in fig. 2, in the present embodiment, the trash rack further includes a support member 8, the support member 8 is connected to the guide bars 21 to support the guide bars 21, and the support member 8 may be made of steel.
Further, the upper end of the supporting member 8 is connected to the upper end of the guide grid 21, and the lower end of the supporting member 8 is perpendicular to the top surface of the grid body 1.
In other embodiments, the upper end of the support member 8 may intersect any point between the upper and lower ends of the guide grid 21.
As shown in fig. 1 and 4, in some embodiments, a vertical roller limiting structure 5 for vertically guiding the dirt removing device is disposed in the vertical guide groove 31, the vertical roller limiting structure 5 includes a plurality of vertical roller limiting assemblies 51, each vertical roller limiting assembly 51 includes a vertical roller 511 and a vertical roller 512, the vertical roller 511 is located between two adjacent vertical grids 3, two ends of the vertical roller 511 are respectively connected with the two adjacent vertical grids 3, and the vertical roller 512 is sleeved outside the vertical roller 511.
Preferably, the vertical rollers 511 may be fixed between two adjacent vertical grills 3 by vertical bolts 513. In other embodiments, the vertical roller 511 can be fixed between two adjacent vertical bars 3 by a pin, or the vertical bars 3 can be provided with a groove for the vertical roller 511 to be inserted and fixed.
In this embodiment, be provided with vertical gyro wheel limit structure 5 in the twice vertical guide way 31, vertical gyro wheel limit structure 5 in each vertical guide way 31 includes the spacing subassembly 51 of the multiunit vertical gyro wheel of arranging along the direction of direction.
In other embodiments, the vertical roller limiting structures 5 may also be disposed in one or more vertical guide grooves 31, and the vertical roller limiting structures 5 in each vertical guide groove 31 include one or more sets of vertical roller limiting assemblies 51 arranged along the guide direction.
Generally, in this embodiment, the oblique rollers 412 and the vertical rollers 512 are made of nylon, so as to reduce the impact force, prevent corrosion, and have a longer service life, preferably, the radius of the oblique rollers 412 is greater than the radius of the vertical rollers 512, so as to reduce the gap between two adjacent oblique rollers 412, prevent the dirt removing device from being inserted into the gap between two adjacent oblique rollers 412, and ensure the dirt removing device to fall safely.
In some embodiments, the grating body 1 is provided with a plurality of transverse bars 6 at intervals in the vertical direction, the vertical bars 3 and the transverse bars 6 are staggered to form grating holes 61 to intercept dirt in water, and each vertical roller limiting assembly 51 is as high as one transverse bar 6 to reduce impact force and prevent the vertical roller limiting assembly 51 from reducing water flow area and affecting the dirt blocking effect of the trash rack.
When the trash cleaning device falls down along the vertical roller limiting assembly 51, the trash cleaning device vertically slides on the vertical roller limiting assembly 51, so that the trash cleaning device is not in contact with the transverse grids 6 and the vertical grids 3, coatings on the surfaces of the transverse grids 6 and the vertical grids 3 are prevented from being abraded, the trash blocking effect of the trash rack is protected, and the service life of the trash rack is prolonged.
As shown in fig. 1 and 2, in some embodiments, the trash rack further includes a hoisting structure 7, the hoisting structure 7 includes a safety probe 71 and a lifting ring 72, the safety probe 71 and the lifting ring 72 are both located in the middle of the top end of the grid main body 1, an avoidance space C is reserved in the middle of the top end of the grid main body 1 for the hoisting ring 72 to be hoisted by the hoisting device, so as to avoid the interference of the guide probe 21 with the hoisting device, the safety probe 71 touches the hoisting device when the hoisting device is hoisted, so as to control the locking and releasing states of the lifting ring 72, and meanwhile, the height of the connecting grid 22 is not greater than the height of the lifting ring 72, so as to meet the normal operation of the lifting ring 72.
The trash rack of this embodiment can arrange perpendicularly in the hydroecium bottom, and the installation of being convenient for has realized that no guide rail trash cleaning device machinery decontaminates, simplifies the structural design of trash cleaning device, practices thrift the cost, can carry out daily trash cleaning simply high-efficiently, ensures the security simultaneously, and the trash cleaning process does not destroy the trash rack finish paint, maintains the result of use of trash rack to the life of extension trash rack can also cooperate special lifting tool simultaneously, carries out high-efficient handling to the whole, realizes artifical the maintenance.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
1. A trash rack for a water intake of a nuclear power plant is characterized by comprising a grid main body (1), a guide main body (2) and vertical grid bars (3);
grid holes (61) are distributed on the grid main body (1), and the guide main body (2) comprises guide grid bars (21);
a plurality of guide grid bars (21) are arranged at intervals along the width direction at the top end of the grid main body (1), the guide grid bars (21) are obliquely arranged, and a plurality of oblique guide grooves (211) are formed between two adjacent guide grid bars (21) in the width direction;
a plurality of vertical grid bars (3) are arranged on the front side of the grid main body (1) at intervals along the width direction, the vertical grid bars (3) are vertically arranged, and a plurality of vertical guide grooves (31) are formed between two adjacent vertical grid bars (3) in the width direction;
the oblique guide groove (211) is communicated with the vertical guide groove (31).
2. The nuclear power plant intake trash rack of claim 1, wherein the guide body (2) further comprises a connecting grid (22);
a plurality of connecting grid bars (22) are arranged on the front side of the grid main body (1) at intervals along the width direction, and a plurality of connecting guide grooves (221) are formed between every two adjacent connecting grid bars (22) in the width direction;
the slant guide way (211) with vertical guide way (31) are through connecting guide way (221) intercommunication, connect guide way (221) upper end with slant guide way (211) lower extreme intercommunication, connect guide way (221) lower extreme with vertical guide way (31) intercommunication, for the direction of trash cleaning device.
3. The nuclear power plant intake trash rack of claim 1 or 2, characterized in that, the trash rack further comprises an oblique roller limiting structure (4) for obliquely guiding a trash cleaning device, the oblique roller limiting structure (4) is arranged in the oblique guide groove (211).
4. The nuclear power plant water intake trash rack of claim 3, characterized in that, the oblique roller limiting structure (4) includes a plurality of oblique roller limiting components (41), the oblique roller limiting components (41) include oblique rollers (411) and oblique rollers (412), the oblique rollers (411) are located between two adjacent guide grids (21), and two ends of the oblique rollers (411) are respectively connected with two adjacent guide grids (21), and the oblique rollers (412) are sleeved outside the oblique rollers (411).
5. The nuclear power plant intake trash rack of claim 4, characterized in that, the trash rack further comprises a vertical roller limiting structure (5) for vertically guiding a trash removal device, the vertical roller limiting structure (5) being disposed in the vertical guide groove (31).
6. The nuclear power plant intake trash rack of claim 5, characterized in that, the vertical roller limit structure (5) includes a plurality of vertical roller limit components (51), the vertical roller limit components (51) include vertical rollers (511) and vertical rollers (512), the vertical rollers (511) are located between two adjacent vertical grids (3), and the vertical rollers (511) are respectively connected with two adjacent vertical grids (3), and the vertical rollers (512) are sleeved outside the vertical rollers (511).
7. The nuclear power plant water intake trash rack of claim 6, wherein the inclined roller limiting structures (4) are arranged in at least two of the inclined guide grooves (211), and the inclined roller limiting structures (4) in each inclined guide groove (211) comprise at least one group of the inclined roller limiting assemblies (41) arranged along a guide direction;
the vertical roller limiting structures (5) are arranged in the at least two vertical guide grooves (31), and each vertical roller limiting structure (5) in each vertical guide groove (31) comprises at least one group of vertical roller limiting assemblies (51) arranged along the guide direction.
8. The nuclear power plant intake trash rack of claim 6, characterized by, a plurality of horizontal bars (6) have been arranged at vertical direction interval to the grid main part (1), vertical bar (3) with horizontal bar (6) are crisscross to form a plurality of grid hole (61), each spacing subassembly of vertical gyro wheel (51) with one horizontal bar (6) height is equivalent.
9. The nuclear power plant intake trash rack of claim 6, wherein the radius of the diagonal rollers (412) is greater than the radius of the vertical rollers (512).
10. The nuclear power plant water intake trash rack of claim 2, characterized in that the trash rack further comprises a hoisting structure (7), the hoisting structure (7) comprises a safety probe (71) and a lifting ring (72), the safety probe (71) and the lifting ring (72) are both located in the middle of the top end of the grid main body (1), the guide grid (21) reserves an avoidance space (C) in the middle of the top end of the grid main body (1) for a hoisting device to hoist the lifting ring (72) so as to avoid the guide grid (21) from interfering with the hoisting device, the safety probe (71) touches the hoisting device when the hoisting device is hoisted so as to control the locking and releasing states of the lifting ring (72), and meanwhile, the height of the connecting grid (22) is not greater than the height of the lifting ring (72) so as to meet the normal operation of the lifting ring (72);
the trash rack further comprises a support piece (8), and the support piece (8) is connected with the guide grid bars (21) to support the guide grid bars (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221642548.2U CN217781951U (en) | 2022-06-28 | 2022-06-28 | Sewage blocking grid for water intake of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221642548.2U CN217781951U (en) | 2022-06-28 | 2022-06-28 | Sewage blocking grid for water intake of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217781951U true CN217781951U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221642548.2U Active CN217781951U (en) | 2022-06-28 | 2022-06-28 | Sewage blocking grid for water intake of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217781951U (en) |
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2022
- 2022-06-28 CN CN202221642548.2U patent/CN217781951U/en active Active
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