CN109914351A - A kind of nuclear power plant's intake high intensity intercept net system - Google Patents
A kind of nuclear power plant's intake high intensity intercept net system Download PDFInfo
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- CN109914351A CN109914351A CN201910288547.9A CN201910288547A CN109914351A CN 109914351 A CN109914351 A CN 109914351A CN 201910288547 A CN201910288547 A CN 201910288547A CN 109914351 A CN109914351 A CN 109914351A
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- string bag
- intercept net
- power plant
- intercept
- nuclear power
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Abstract
The present invention relates to a kind of nuclear power plant's intake high intensity intercept net systems, intercept net system includes the first intercept net mechanism, first intercept net mechanism includes string bag interception unit, plane interception unit above string bag interception unit, string bag interception unit includes multiple string bags for carrying out intercepting and capable of being collected the marine growth of interception under water, plane interception unit includes the obstruction mesh sheet being connected to above the string bag for preventing marine growth sea above the string bag from crossing, nuclear power plant's intake high intensity intercept net system of the invention, using the reasonable Arrangement of string bag interception unit and plane interception unit, marine growth intercepts and final marine growth is flow in the string bag, reduce the adhesion of net, the interception rate of marine organisms can be effectively improved in this way, general netting gear is compared with stronger service life, and then General Promotion cold source reliability, have Effect solves the problems, such as that Coastal Power Plant sea area marine organisms break out and influence power plant and normally produce.
Description
Technical field
The present invention relates to belong to npp safety field, and in particular to a kind of nuclear power plant's intake high intensity intercept net system
System.
Background technique
The quality of nuclear power plant's intake operating status directly affects the safe operation and reliability of power plant, to cope with nuclear power plant
Marine biological invasion, usually used by method be that setting or takes the mode manually salvaged to remove at intercept net, however it is conventional
Intercept net mostly uses anchor block and floating drum that block is fixed, and structures under wind wave ability is weaker, in the water inlet that sheltering condition is poor
Canal front end, under the action of wind, wave, stream, block stress condition is complicated, especially when marine growth is largely broken out, simple drawing
Network structure, for the angle of stress, impact resistance is weak, and design margin evaluation is lower；Moreover, conventional intercept net is adopted more
Performance with the material of nylon wire, durability, corrosion resistance and anti-sea organism attachment under marine environment is poor, needs frequent
Replacement, maintenance cost are higher；In addition, conventional intercept net can not achieve tunneling boring interception.Such as block and inlet channel slope, riverbed
There is also gap loopholes between face, these are respectively formed the channel that marine growth enters hydro plant intake；The intercept net in stormy waves environment
Bottom and trraning pole two sides be torsion-bending ratio and stone friction, cause abrasion very strong, and due in existing intercept net
Guiding principle is in such a way that floating drum floating is fixed, so that marine organisms or floating material get over net phenomenon and happen occasionally under stormy waves environment.
Summary of the invention
A kind of nuclear power plant's intake high intensity intercept net is provided the invention aims to overcome the deficiencies in the prior art
System.
In order to achieve the above objectives, the technical scheme adopted by the invention is as follows:
A kind of nuclear power plant's intake high intensity intercept net system, intercept net system include the first intercept net mechanism, the first intercept net
Mechanism includes string bag interception unit, the plane interception unit above string bag interception unit, and string bag interception unit includes being used for
The multiple string bags that intercepts and the marine growth of interception can be collected are carried out under water, and plane interception unit includes being connected to
Obstruction mesh sheet above the string bag for preventing marine growth sea above the string bag from crossing, the first intercept net mechanism further include being set to core
At least two support frames at water intake of power plant mouth, be from top to bottom sequentially arranged in the first guiding principle line between each support frame, the second guiding principle line,
Third guiding principle line and the 4th guiding principle line for connecting two adjacent string bags, stop the top carry of mesh sheet on the first guiding principle line, hinder
Block lower part and the top of the string bag of piece connects simultaneously that carry is on the second guiding principle line by the second guiding principle line, and the lower part carry of the string bag is the
On 3 cardinal guides line.
Preferably, the string bag includes the be connected preceding pocket and rear pocket of setting, and the opening of the string bag is located at the front end of preceding pocket.
Preferably, preceding pocket is removably connect with rear pocket.Marine growth is finally collected in rear pocket, and filling in rear pocket can incite somebody to action
Pocket dismounting and change afterwards.
Preferably, the opening of the string bag is in quadrangle, and preceding pocket has the first side and second side, position positioned at upper and lower two sides
In the third side and the 4th side of the left and right sides, first side, second side, third side, the 4th side width by preceding
Setting is gradually reduced after.
Preferably, second side is obliquely installed upwards from front to back.
Preferably, the dictyosome of the string bag includes the supporting layer set gradually, the first intercept layer and the second interception.The net of supporting layer
Hole size is 0.8 ~ 1.2m, and the mesh size of the first intercept layer is 4 ~ 6cm, and the mesh size of the second intercept layer is 9 ~ 21mm.It adopts
With protection is intercepted layer by layer, constantly refine, be complementary to one another, marine organisms are intercepted and are put in net, by the effect of water conservancy diversion and net this
Body is not easy the characteristic adhered to, and is finally collected in behind tail portion in pocket, and can greatly enhance the intensity of intercept net.
Preferably, the second intercept layer be ultrahigh molecular weight polyethylene at without knot monofilament structure, and the second intercept layer
The hexagonal shape of mesh.Ultra-high molecular weight polyethylene is corrosion-resistant, shock resistance and strength are big, and has non-stick, and seaweed is almost
It cannot adhere to, even if attachment, mesh will not be blocked, and sprayed with hydraulic giant one；Also has the advantages that light-weight, resistance of blocking
40% or more is reduced than common net, effectively reduces net weight and current drag power, it is easier to precisely be arranged net, increase net and rope make
Use the service life；
In addition, the mesh of the second intercept layer is designed using the structure of hexagon, specially without knot, monofilament, hexagonal meshes, energy
It is enough further to avoid multifibres net sea organism attachment, effectively improve seaweed linked network, easy cleaning and increase permeability rate.
Preferably, the first guiding principle line is made of zinc-coated wire.Zinc-coated wire online end can be straightened as far as possible, keep the knot of net
Structure.
Preferably, gravity chain is connected on third guiding principle line, gravity chain is located at seabed with multiple by more wirerope
Anchor block connection.Increase Counterweight anchor chain in net bottom, be connected in the bottom line of net, key point connects anchor block, prevents under bad weather
Dictyosome be discharged phenomenon.
Preferably, intercept net system includes the second intercept net mechanism and the third before being sequentially arranged in the first intercept net mechanism
Intercept net mechanism.Whole intercept net system further includes being located at matched the second intercept net used in the first preceding road of intercept net mechanism
Mechanism and third intercept net mechanism, the first intercept net mechanism carry out last interception together.
Due to the implementation of above technical scheme, the invention has the following advantages over the prior art:
Nuclear power plant's intake high intensity intercept net system of the invention is analyzed by rigorous Calculation of Hydrodynamic, in conjunction with live feelings
Condition design carries out, and using the reasonable Arrangement of string bag interception unit and plane interception unit, marine growth intercepts and final marine growth stream
To the string bag, reduce the adhesion of net, can effectively improve the interception rate of marine organisms in this way, compare general netting gear have compared with
Strong service life, and then General Promotion cold source reliability effectively solve Coastal Power Plant sea area marine organisms and break out and influence power plant
The problem of normal production.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the first intercept net mechanism of the invention；
Fig. 2 is the schematic perspective view of the string bag of the invention；
Fig. 3 is the dictyosome structure of the string bag of the invention and the dictyosome structural schematic diagram for stopping mesh sheet；
Fig. 4 is the concrete structure schematic diagram of the second intercept layer of the invention；
Wherein: 100, stopping mesh sheet；101, preceding pocket；102, rear pocket；11, supporting layer；12, the first intercept layer；13, it second intercepts
Layer；D1, the first guiding principle line；D2, the second guiding principle line；D3, third guiding principle line；D4, the 4th guiding principle line.
Specific embodiment
The present invention will be further described in detail with specific embodiment with reference to the accompanying drawing.
As shown in Figures 1 to 4, a kind of nuclear power plant's intake high intensity intercept net system, intercept net system are blocked including first
Jie Wang mechanism, the first intercept net mechanism include string bag interception unit, the plane interception unit above string bag interception unit, net
Pocket interception unit includes multiple string bags for carrying out intercepting and capable of being collected the marine growth of interception under water, plane
Interception unit includes being connected to the obstruction mesh sheet 100 for above the string bag being used to that marine growth sea above the string bag to be prevented to cross, and first
Intercept net mechanism further includes at least two support frames at nuclear power plant's intake, be from top to bottom sequentially arranged in each support frame it
Between the first guiding principle line d1, the second guiding principle line d2, third guiding principle line d3 and the 4th guiding principle line d4 for connecting adjacent two string bags, stop
On the first guiding principle line d1, the top of the lower part and the string bag that stop mesh sheet 100 is connected the top carry of mesh sheet 100 by the second guiding principle line d2
It connects and carry is on the second guiding principle line d2, the lower part carry of the string bag is on third guiding principle line d3.
Intercept net system includes the second intercept net mechanism and the third intercept net before being sequentially arranged in the first intercept net mechanism
Mechanism.Whole intercept net system further include be located at matched the second intercept net mechanism used in the first preceding road of intercept net mechanism and
Third intercept net mechanism, the first intercept net mechanism carry out last interception together.
Specifically, the string bag includes the be connected preceding pocket 101 and rear pocket 102 of setting, before the opening of the string bag is located at preceding pocket 101
End.Preceding pocket 101 is removably connect with rear pocket 102.Marine growth is finally collected in rear pocket 102, and filling in rear pocket 102 can incite somebody to action
102 dismounting and change of pocket afterwards.
Further, as shown in Fig. 2, the opening of the string bag is in quadrangle, preceding pocket 101 has positioned at the first side of upper and lower two sides
Face and second side, third side and the 4th side positioned at the left and right sides, first side, second side, third side, the 4th
Setting is gradually reduced in the width of side from front to back；And second side is obliquely installed upwards from front to back.That is, the bottom surface of preceding capsule to
Back upper place inclination extends, therefore the first intercept net mechanism is in the seawater in use, the position of rear capsule can be relatively high and smaller, just
In the dismounting and change of rear capsule.
Further, as shown in figure 3, the dictyosome of the string bag and the dictyosome for stopping mesh sheet 100 include the support set gradually
The 11, first intercept layer 12 of layer and the second intercept layer 13.The mesh of supporting layer 11 is square, and square side length size is 1m；The
The mesh of one intercept layer 12 is square, and square side length size is 5cm；Second intercept layer 13 is ultra-high molecular weight polyethylene
It is manufactured without knot monofilament structure, and the hexagonal shape of mesh (referring to fig. 4) of the second intercept layer 13, hexagonal side length size are
10mm is 20mm.Main skeleton of the supporting layer 11 as block, supports entire net, and the mesh of the first intercept layer 12 is larger,
The biggish marine organisms of volume are intercepted, 13 mesh of the second intercept layer is smaller to intercept smaller marine organisms.It is protected using intercepting layer by layer,
Constantly refinement, is complementary to one another, and marine organisms are intercepted and are put in net, the spy adhered to is not easy by the effect of water conservancy diversion and net itself
Property is finally collected in behind tail portion in pocket 102, and can greatly enhance the intensity of intercept net.Ultra-high molecular weight polyethylene corrosion resistant
Erosion, shock resistance and strength are big, and have non-stick, and seaweed can hardly adhere to, even if attachment, will not block mesh, and use
Hydraulic giant one sprays；Also have the advantages that it is light-weight, block resistance ratios common net reduce 40% or more, effectively reduce net weight and water
Flow drag, it is easier to precisely arrange net, increase the service life of net and rope；In addition, the mesh of the second intercept layer 13 uses six
The structure of side shape designs, and specially without knot, monofilament, hexagonal meshes, can further avoid multifibres net sea organism attachment,
Effectively improve seaweed linked network, easy cleaning and increase permeability rate.
Further, the first guiding principle line d1 is made of zinc-coated wire.Zinc-coated wire online end can be straightened as far as possible, keep
The structure of net.Gravity chain is connected on third guiding principle line d3, gravity chain passes through more wirerope and multiple anchors positioned at seabed
Block connection.Since trraning pole two sides are that torsion-bending ratio and stone riprap form, the abrasion along with stormy waves weather, between block and stone
It is very strong, the service life of net is reduced, certain risk is brought.Therefore, increase Counterweight anchor chain in net bottom, be connected to the bottom line of net
On, key point connects anchor block, and dictyosome bottom can be prevented mobile, prevent it from wearing between stone, and prevent severe day
Dictyosome under gas is discharged phenomenon.
In conclusion nuclear power plant's intake high intensity intercept net system of the invention, passes through rigorous Calculation of Hydrodynamic point
Analysis is designed in conjunction with field condition and is carried out, using the reasonable Arrangement of string bag interception unit and plane interception unit, marine growth interception and
Final marine growth is flow in the string bag, is reduced the adhesion of net, can effectively be improved the interception rate of marine organisms in this way, compare one
As netting gear there is stronger service life, it is sudden and violent effectively to solve Coastal Power Plant sea area marine organisms for and then General Promotion cold source reliability
It sends out and influences the problem of power plant normally produces.In addition, the lower part for stopping mesh sheet is connected with the top of the string bag by the second guiding principle line, two
Person is complementary to one another, and guarantees the structural strength of the string bag, prevents from forcing the string bag to pull out the water surface；To avoid long-term exposing to the weather, make
Networking structural fatigue.And obstruction mesh sheet can prevent more unrestrained influence, and marine organisms are crossed the string bag and enter water district.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention, it is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of nuclear power plant's intake high intensity intercept net system, it is characterised in that: the intercept net system includes the first interception
Net mechanism, first intercept net mechanism include string bag interception unit, the plane interception above the string bag interception unit
Unit, the string bag interception unit include intercepting and capable of being collected the marine growth of interception multiple for carrying out under water
The string bag, the plane interception unit include being connected to above the string bag for preventing marine growth sea above the string bag from crossing
Obstruction mesh sheet, first intercept net mechanism further includes at least two support frames at nuclear power plant's intake, by upper
Under be sequentially arranged in the first guiding principle line between each support frame as described above, the second guiding principle line, third guiding principle line and connect two adjacent string bags
The 4th guiding principle line connect, the top carry for stopping mesh sheet is on the first guiding principle line, the lower part for stopping mesh sheet and the string bag
Top by the second guiding principle line connection and carry on the second guiding principle line, the lower part carry of the string bag is in the third
On guiding principle line.
2. nuclear power plant's intake high intensity intercept net system according to claim 1, it is characterised in that: the string bag includes
Be connected the preceding pocket and rear pocket of setting, and the opening of the string bag is located at the front end of the preceding pocket.
3. nuclear power plant's intake high intensity intercept net system according to claim 2, it is characterised in that: the preceding pocket and institute
Rear pocket is stated removably to connect.
4. nuclear power plant's intake high intensity intercept net system according to claim 2, it is characterised in that: the string bag is opened
Mouth is in quadrangle, and the preceding pocket has the first side and second side, the third side positioned at the left and right sides positioned at upper and lower two sides
Face and the 4th side, the first side, second side, third side, the 4th side width be gradually reduced set from front to back
It sets.
5. nuclear power plant's intake high intensity intercept net system according to claim 4, it is characterised in that: the second side
It is obliquely installed upwards from front to back.
6. nuclear power plant's intake high intensity intercept net system according to claim 1, it is characterised in that: the net of the string bag
Body includes the supporting layer set gradually, the first intercept layer and the second intercept layer, and the mesh size of the supporting layer is 0.8 ~ 1.2m,
The mesh size of first intercept layer is 4 ~ 6cm, and the mesh size of second intercept layer is 9 ~ 21mm.
7. nuclear power plant's intake high intensity intercept net system according to claim 6, it is characterised in that: described second intercepts
Layer be ultrahigh molecular weight polyethylene at without knot monofilament structure, and the hexagonal shape of mesh of second intercept layer.
8. nuclear power plant's intake high intensity intercept net system according to claim 1, it is characterised in that: the first guiding principle line
It is made of zinc-coated wire.
9. nuclear power plant's intake high intensity intercept net system according to claim 1, it is characterised in that: the third guiding principle line
On be connected with gravity chain, the gravity chain is connect by more wirerope with multiple anchor blocks positioned at seabed.
10. nuclear power plant's intake high intensity intercept net system according to claim 1, it is characterised in that: the intercept net
System includes the second intercept net mechanism and the third intercept net mechanism before being sequentially arranged in first intercept net mechanism.
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| CN201910288547.9A CN109914351A (en) | 2019-04-11 | 2019-04-11 | A kind of nuclear power plant's intake high intensity intercept net system |
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| CN201910288547.9A CN109914351A (en) | 2019-04-11 | 2019-04-11 | A kind of nuclear power plant's intake high intensity intercept net system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726531A (en) * | 2020-11-20 | 2021-04-30 | 深圳中广核工程设计有限公司 | Circulating water prefiltering system of nuclear power plant |
| CN112916172A (en) * | 2021-01-28 | 2021-06-08 | 深圳市正帕海洋工程技术有限公司 | Non-blocking spiral composite interception device |
| CN113737756A (en) * | 2021-08-25 | 2021-12-03 | 湖南鑫海股份有限公司 | Net bag type sewage blocking system for water intake open channel |
| CN115341514A (en) * | 2022-09-05 | 2022-11-15 | 中广核工程有限公司 | Cold source safety comprehensive fortification system for nuclear power plant |
| CN115467294A (en) * | 2022-07-29 | 2022-12-13 | 上海核工程研究设计院有限公司 | Nuclear power station marine organism intercepting device and method |
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| CN210127451U (en) * | 2019-04-11 | 2020-03-06 | 苏州热工研究院有限公司 | High-strength interception net system for water intake of nuclear power plant |
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| CN112726531A (en) * | 2020-11-20 | 2021-04-30 | 深圳中广核工程设计有限公司 | Circulating water prefiltering system of nuclear power plant |
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| WO2024051023A1 (en) * | 2022-09-05 | 2024-03-14 | 中广核工程有限公司 | Comprehensive fortification system for cold source safety of nuclear power plant |
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