CN108295533A - Nuclear power station pumping plant water inlet pre-filtrating equipment and its pre-filtering method - Google Patents
Nuclear power station pumping plant water inlet pre-filtrating equipment and its pre-filtering method Download PDFInfo
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- CN108295533A CN108295533A CN201810065684.1A CN201810065684A CN108295533A CN 108295533 A CN108295533 A CN 108295533A CN 201810065684 A CN201810065684 A CN 201810065684A CN 108295533 A CN108295533 A CN 108295533A
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- rack
- nuclear power
- power station
- pumping plant
- filtrating equipment
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 238000005086 pumping Methods 0.000 title claims abstract description 61
- 238000001914 filtration Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000005096 rolling process Methods 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 10
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 5
- 230000003831 deregulation Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009545 invasion Effects 0.000 description 6
- 239000013535 sea water Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 241000216843 Ursus arctos horribilis Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000143060 Americamysis bahia Species 0.000 description 1
- 241001466489 Phaeocystis globosa Species 0.000 description 1
- 241000242583 Scyphozoa Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/09—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with filtering bands, e.g. movable between filtering operations
- B01D29/093—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with filtering bands, e.g. movable between filtering operations combined with means to fasten the opposite edges of the filtering band together, e.g. Zipper
Abstract
The invention discloses a kind of nuclear power station pumping plant water inlet pre-filtrating equipments, including rack, the screen pack composite structure being installed in rack, lifting slide rail mechanism for rack with respect to water inlet flow channel oscilaltion and the fixing and locking mechanism for rack lifting position selectively to be locked or discharged, fixing and locking mechanism is set in lifting slide rail mechanism or rack, rack adjusts depth of the screen pack composite structure in working fluid during upper and lower rise, to enhance the interception filter capacity of nuclear power station pumping plant water inlet flow channel, the operating load and maintenance cost in downstream can be reduced, improve the reliability and security of nuclear power station pumping plant cold source system.In addition, a kind of pre-filtering method for pre-filtrating equipment of intaking the invention also discloses application nuclear power station pumping plant of the present invention.
Description
Technical field
The present invention relates to the water inlet flow channel filtration art of nuclear power station pumping plant more particularly to a kind of pre- mistakes of nuclear power station pumping plant water inlet
Filter device and its pre-filtering method.
Background technology
With advances in technology with humane development, nuclear power station is more and more ripe and plays its huge effect.Nuclear power
Pumping plant of standing provides water source to cool down related system downstream, thus need to seawater that the water inlet flow channel upstream of nuclear power station pumping plant is come in into
Row filtering, which just can transport to downstream, to be used.
Currently, domestic building and be respectively positioned on strand in the nuclear power station of fortune, each nuclear power station depends on seawater and is cooled down as hot trap
The equipment of nuclear island and conventional island.The water intaking of nuclear power station seawater mainly carried out seawater by three barriers from intake to pumping plant
It filters and removes contamination.First of barrier is the intercept net before intake；Second is coarse rack, fine fack (containing trash)；Third road
It is rotating drum-shaped strainer.The mesh of three barriers successively decreases successively, realizes the filtering step by step to seawater.Wherein, filter device gap
More rearward, wherein coarse rack grizzly bar gap is 200mm, is mainly used to intercept larger foreign matter for bigger functions of the equipments position；Thin lattice
Grid grizzly bar gap is 50mm, is mainly used to intercept foreign matter and larger marine growth；Drum type filter screen mesh is 3mm, is mainly used to terminal
Filtering, finally meets requirement of the power station cold source system to cooling water quality.
Nuclear power plant's intake sea water filter and three barriers removed contamination can not effectively cope with the big of marine growth at this stage
Amount invasion.According to the U.S. nuclear power operation study institute (INPO) data statistics, between 2004 to 2008, global nuclear power plant fetches water
Mouth occlusion event up to 61, cause by most blocked by aquatile.Wherein nearly 80% event cause unit drop power or
Shutdown, the event more than 20% directly impact npp safety related system.
Since 2013, domestic power station water intaking marine site is had occurred successively because of jellyfish, phaeocystis globosa red tide, silt, small fish
Shrimp etc. influences the event of engineering water intaking, causes drum type filter screen, SEC system shellfish catcher strainers and plate heat exchanger pressure difference abnormal
It increases, or even causes part of generating units CRF pumps and jump pump automatically because drum type filter screen pressure difference is high, and then cause the operation of unit load down
Or even the events such as shutdown, so that maintenance cost greatly improves.
Therefore, it is badly in need of increasing a kind of nuclear power station pumping plant water inlet pre-filtrating equipment before tri- barriers of Yao, to reduce terminal
Drum type filter screen operation load, improve the purpose of its operational reliability.
Invention content
The one of the present invention is designed to provide a kind of nuclear power station pump of the operation load for the drum type filter screen that can reduce terminal
Stand water inlet pre-filtrating equipment, improve the purpose of its operational reliability.
Another object of the present invention is to provide a kind of pre-filterings of the operation load of drum type filter screen that can reduce terminal
Method.
To achieve the above object, nuclear power station pumping plant of the invention water inlet pre-filtrating equipment is applicable in the flowing in water inlet flow channel
Liquid pre-filtering, including rack, be installed in the rack screen pack composite structure, for the relatively described water inlet of the rack
The lifting slide rail mechanism of runner oscilaltion and fixing lock for the rack lifting position selectively to be locked or discharged
Tight mechanism.The fixing and locking mechanism is set in the lifting slide rail mechanism or rack, and the rack is adjusted during upper and lower rise
Save depth of the screen pack composite structure in the working fluid.
Preferably, the length direction of the rack is identical as the length direction of screen pack composite structure.
Preferably, the rack is equipped with the lifting slide rail mechanism in the side wall of length direction.
Preferably, the lifting slide rail mechanism includes sliding-rail groove and the roll wheel assembly slided up and down along the sliding-rail groove,
For being embedded in civil engineering structure in advance, the roll wheel assembly is installed in the rack sliding-rail groove.
Preferably, the roll wheel assembly includes rolling support member and the idler wheel being installed on the rolling support member,
The rolling support member is fixed with the rack, and the idler wheel is located in the sliding-rail groove and is slided along the sliding-rail groove, institute
Fixing and locking mechanism is stated to arrange along the length direction of the rack and be selectively placed through the rolling support member and sliding rail
On slot.
Preferably, the idler wheel includes the first idler wheel and the second idler wheel, first idler wheel is with the sliding-rail groove described in
The cell wall of rack width direction arrangement is in rolling contact, and second idler wheel is arranged with the sliding-rail groove along the rack length direction
Cell wall be in rolling contact.
Preferably, the nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention further includes the selectively relatively described water inlet flow channel
The length direction of the mobile water fender of oscilaltion, the mobile water fender is identical as the length direction of the rack, the shifting
Dynamic water fender is turned on and off the bottom of the screen pack composite structure for the selectively relatively described water inlet flow channel lifting
Gap between the bottom of the water inlet flow channel in above-below direction.
Preferably, the screen pack composite structure is in be replaceably mounted in the rack.
Preferably, the rack includes at least two rack sections along its upper and lower directions, lead between the two adjacent rack sections
The splicing of segmentation bindiny mechanism is crossed in one.
Preferably, the segmentation bindiny mechanism includes the lower support for being connected to one outside in the two adjacent rack sections
Frame and the upper support frame for being connected to another one outside in the two adjacent rack sections, the upper support frame and the lower bracing frame
In being detachably connected.
Preferably, the lower bracing frame is equipped with the starting stave parallel with the side wall of rack section and is erected with described first
Plate first level plate connected vertically；The upper support frame be equipped with second riser parallel with the side wall of rack section and with institute
The second riser the second level board connected vertically is stated, the first level plate is layered on top of each other with the second level board, one first bolt
It is vertically placed through the first level plate and the second level board and is locked together the first level plate and the second level board.
Preferably, be additionally provided on the lower supporting plate it is parallel with second riser and be arranged in second level board it
On connection board, one second bolt is flatly placed through the upper backup pad and connection board and by second riser and connection
Riser is locked together.
Preferably, reinforcement riser is additionally provided between the first level plate and the starting stave, in the reinforcement riser
Centre is equipped with vertical plate hole, and the center line of the vertical plate hole is arranged along the length direction of the rack.
Preferably, the screen pack composite structure is the hollow loop configuration that head and the tail are closed.
Preferably, the nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention further includes for driving the screen pack to combine
Structure does the carrier bar of lift rotary movement and provides the Power Component of power for the carrier bar, and the carrier bar encloses jointly comprising multiple
Go out the chain slab element of closed loop configuration, multiple chain slab elements head and the tail are hinged so that the carrier bar does the rotary motion lifted, and described
Chain slab element has the opening communicated with the space that the closed loop configuration is enclosed, and the screen pack composite structure includes rotation net
Plate, the rotary meshed plate are in rotatably to be set in the chain slab element；Periodic lift rotary movement is done in the carrier bar
In the process, while the rotary meshed plate follows the carrier bar to do periodic lift rotary movement, the rotary meshed plate also phase
The carrier bar is rotated and is periodically opened and closed the opening.
Preferably, the rotary meshed plate is automatic by the gravity of the rotary meshed plate in carrier bar drive uphill process
Ground is rotated to the position for being closed the opening；The rotary meshed plate is during the carrier bar drives and declines by the rotary meshed plate
Gravity and automatically be rotated to the position for opening the opening.
Preferably, the screen pack composite structure also includes the first frame, first frame is installed on the carrier bar
On unit, the rotary meshed plate has positioned at front along the lift rotary direction of the carrier bar and is used for installation end and the position of pivot joint
Free end in the installation end rear, the installation end are pivotally connected with first frame.
Preferably, the screen pack composite structure also includes bucket shape web plate and the second frame, the bucket shape web plate installation
In on second frame, second frame is installed in the chain slab element without the rotary meshed plate.
Preferably, the bucket shape web plate replaces cloth successively along the lift rotary direction of the carrier bar with the rotary meshed plate
It sets.
For the purpose for realizing above-mentioned, pre-filtering method of the present invention includes the following steps：
(1) judge the sea biological pollution concentration in working fluid in water inlet flow channel；And
(2) lifting position according to rack described in judging result de-regulation with respect to water inlet flow channel, so as to adjust the filtering
The filtering section ratio lambda of web plate composite structure, λ=X/ (H+h)；Wherein, X be the screen pack composite structure bottom with into
Gap width between the bottom of water flow passage, H are the filtered water level value of screen pack composite structure, and h is the filter screen
Board combining structure water level penalty values.
Preferably, ranging from 50%≤λ≤95% of the filtering section ratio lambda.
Compared with prior art, nuclear power station pumping plant of the invention water inlet pre-filtrating equipment is the water inlet flow channel in original pumping plant
Upper increased pre-filtrating equipment, which increase the interception filter capacities of nuclear power station pumping plant water inlet flow channel, can reduce the drum in downstream
The operating load of shape strainer and cause overload stall risk, effectively reduce maintenance cost, improve nuclear power station pumping plant low-temperature receiver system
The reliability and security of system.Simultaneously as the nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention includes rack, is installed on machine
Screen pack composite structure on frame, the lifting slide rail mechanism for rack with respect to water inlet flow channel oscilaltion and for rack liter
Decrease sets the fixing and locking mechanism for selectively locking or discharging, therefore when facing a large amount of marine growth invasions, by lifting sliding rail
Mechanism and the nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention is quickly installed in water inlet flow channel, reaching quick intervention
The reaction time of the purpose and saving reply marine growth invasion that use；And rack adjusts filter screen board group during oscilaltion
Depth of the structure in working fluid is closed, is sent out under the premise of ensureing the nuclear power station pumping plant water inlet pre-filtrating equipment safety of the present invention
Wave maximum filter capacity.
Description of the drawings
Fig. 1 is the schematic side view of the nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention.
Fig. 2 is in Fig. 1 from the floor map in terms of the directions A.
Fig. 3 is the enlarged diagram at B in Fig. 2.
Fig. 4 is the enlarged diagram at C in Fig. 1.
Fig. 5 is in Fig. 4 from the floor map in terms of the directions D.
Fig. 6 is the structural schematic diagram of the screen pack composite structure in nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention.
Fig. 7 is in Fig. 6 from the floor map in terms of the directions E.
Fig. 8 is the flow chart of the pre-filtering method of the present invention.
Specific implementation mode
For the technology contents that the present invention will be described in detail, construction feature, below in conjunction with embodiment and coordinate attached drawing make into
One step explanation.
It please refers to Fig.1 to Fig. 2, nuclear power station pumping plant of the invention water inlet pre-filtrating equipment 100 is applicable in water inlet flow channel
Working fluid pre-filtering in 200, including rack 1, the screen pack composite structure 2, opposite for rack 1 that is installed in rack 1
The lifting slide rail mechanism 3 of 200 oscilaltion of water inlet flow channel, for the fixation to 1 lifting position selective lock of rack or release
Retaining mechanism 4, for selectively relative to the mobile water fender 5 of 200 oscilaltion of water inlet flow channel, for driving filter screen board group
Close the Power Component (in attached drawing unmarked) that structure 2 does the carrier bar 7 of lift rotary movement and provides power for carrier bar.Fixed locking
Mechanism 4 is set on lifting slide rail mechanism 3, and certainly, fixing and locking mechanism 4 can be set in rack 1, but not limited to this.Rack 1 is in upper
Depth P of the screen pack composite structure 2 in working fluid is adjusted in lower lifting process；For example, as shown in Figure 1, in this
In embodiment, when rack 1 declines with respect to water inlet flow channel 200, at this time so that screen pack composite structure 2 continues to move into water inlet flow channel
In working fluid in 200, so that screen pack composite structure 2 gradually increases in the depth P in working fluid, preferably
Meet the working fluid pre-filtering big to sea biological pollution concentration；And when rack 1 rises with respect to water inlet flow channel 200, make at this time
Screen pack composite structure 2 is obtained toward the movement of working fluid direction is moved away from, so that screen pack composite structure 2 is in working fluid
Interior depth P is tapered into, and preferably meets the working fluid pre-filtering small to sea biological pollution concentration, thus the reaction time it is fast and
Pre-filtering pattern can be neatly adjusted, but not limited to this.Specifically, in the present embodiment, rack 1 and screen pack composite structure
Both 2 length direction (i.e. double-head arrow in screen pack composite structure 2 in Fig. 2 is signified) is identical so that rack 1 and filtering
Web plate composite structure 2 is horizontally placed on water inlet flow channel 200, preferably to carry out lateral interception and mistake to the marine organisms in flow fluid body
Filter；Meanwhile lifting slide rail mechanism 3 is for being installed between the civil engineering structure 210 of water inlet flow channel 200 and rack 1, but not as
Limit.More specifically, as follows：
As shown in Figures 1 and 2, screen pack composite structure 2 is in and is replaceably mounted in rack 1 so that of the invention
Nuclear power station pumping plant water inlet pre-filtrating equipment adapts to different size of ocean and gave birth to filtering.Specifically, in this present embodiment, it filters
Web plate composite structure 2 is the hollow loop configuration that head and the tail are closed, in order to which screen pack composite structure 2 does rotary motion and reality
Marine organisms are now picked up to and are rinsed device removing, correspondingly, screen pack composite structure 2 can make multiple modularization lists
Member, it is replaceable by being interconnected to form loop configuration between multiple modular units, therefore when some modular unit damages
New modular unit, to improve the durability of screen pack composite structure 2, and then promoted the nuclear power station pumping plant of the present invention into
The bulk life time of water pre-filtrating equipment 100.
Fig. 6 and Fig. 7 is please referred to, carrier bar 7 includes multiple chain slab elements 71 for crossing closed loop configuration jointly, multiple chain slab elements
71 head and the tail are hinged so that carrier bar 7 does the rotary motion lifted, and chain slab element 71 has 73 phase of space enclosed with closed loop configuration
Logical opening 72.
Fig. 6 and Fig. 7 is please referred to, screen pack composite structure 2 includes rotary meshed plate 21, the first frame 22, bucket shape web plate 23
And second frame 24.In being rotatably set in chain slab element 21, realization method has rotary meshed plate 21：Rotary meshed plate 21 be fixed on
The first frame 22 pivot joint in chain slab element 71；Alternatively, rotary meshed plate 21 and the first frame 22 are fixed, then by the first frame 22 with
Chain slab element 71 is pivotally connected.Wherein, during carrier bar 71 does periodic lift rotary movement, rotary meshed plate 21 follows carrier bar
7 while do the movement of periodic lift rotary, and rotary meshed plate 21 is also rotated relative to chain slab element 71 and is periodically opened and closed out
Mouth 72.For example, in this implementation, rotary meshed plate 21 drives the weight in uphill process by the rotary meshed plate 21 in carrier bar 7
Power and automatically be rotated to be closed opening 72 position；Rotary meshed plate 21 is during carrier bar 7 drives and declines by the rotation net
The gravity of plate 21 and automatically be rotated to open opening 72 position, state is as shown in Figure 6.Therefore by rotary meshed plate 21 in rising
When close opening 72, open opening 72 when declining, thus the nuclear power station pumping plant that rotary meshed plate 21 is applied to the present invention intake it is pre-
When filter device 100 so that flocking together between the rotary meshed plate 21 and the rotary meshed plate 21 for declining side of uplifted side
Dirt can smoothly be flowed away by the opening 72 of chain slab element 71 for declining side with flow, reduce the nuclear power station pumping plant of the present invention
Water inlet prefiltering net device 100 stops the risk carried, reduces maintenance cost, improves operational reliability.More specifically, in this implementation
In example, rotary meshed plate 21 has along the lift rotary direction of carrier bar 7 positioned at front and for the installation end 211 of pivot joint and positioned at peace
The free end 212 at end rear is filled, installation end 211 and the first frame 22 are pivotally connected, and free end 212 is around installation end 211 and the first frame
22 articulated section is periodically opened and closed opening 72.
Meanwhile bucket shape web plate 23 is installed on the second frame 24, the second frame 24 is installed on without rotary meshed plate 21
In chain slab element 71.That is the first frame 22 and the second frame 24 are not disposed in the same chain slab element 71；Therefore by bucket shape
Dirt is picked up during the rotary motion of lifting by bucket shape web plate 23 and is rinsed device and washed away, improved by web plate 23
Filter effect and ability.Specifically, in this present embodiment, bucket shape web plate 23 is along the lift rotary direction of carrier bar 7 and rotary meshed plate 21
It is alternately arranged successively so that the sum of bucket shape web plate 23 and the quantity of rotary meshed plate 21 are equal to the quantity of chain slab element 71；Due to bucket
Shape web plate 23 is alternately arranged successively with rotary meshed plate 21, correspondingly, the first frame 22 is also to replace cloth successively with the second frame 24
It sets；Therefore being used cooperatively by bucket shape web plate 23 and rotary meshed plate 21 so that screen pack composite structure 2 can realize internal cleaning
While, more dirts are intercepted and filter, furthermore, it, can will be from the chain slab element 71 for declining side by bucket shape web plate 23
The dirt being discharged at 72 that is open pulls the outside for combining in closed loop configuration again, is carried when rising in order to bucket shape web plate 23 to closing
To realize final cleaning above ring structure.For example, when rotary meshed plate 21 and bucket shape web plate 23 are located at uplifted side, rotation net
Plate 21 closes opening 72, bucket shape web plate 23 and rotary meshed plate 21 dirt is realized intercept, filtering, by bucket shape web plate 23 by interception
Dirt is carried to closed loop configuration the top and is cleaned with facilitating；When rotary meshed plate 21 and bucket shape web plate 23, which are located at, declines side, rotation
Turn the opening 72 that web plate 21 opens the chain slab element 71 for declining side, dirt is along liquid flow direction by the chain slab element of decline side
71 opening 72 is discharged, and the part dirt of discharge is pulled the outside of collection closed loop configuration by bucket shape web plate 23 again, waits for recycling next time
It is cleaned when to closed loop configuration the top.Certainly, in other embodiment, bucket shape web plate 23 can be replaced according to actual needs
At rotary meshed plate 21, but not limited to this.Preferably it is, when being not provided with bucket shape web plate 23, each chain slab element 71 at this time
Rotary meshed plate 21 there are one corresponding, i.e. a rotary meshed plate 21 are periodically opened and closed the opening 22 of a chain slab element 71.
Preferably it is that the mesh diameter specification limit of rotary meshed plate 21 and bucket shape web plate 23 is 3mm to 15mm, but is not limited to
This.When the volume particles of the marine growth in water inlet flow channel 200 are larger, the rotary meshed plate 21 and bucket shape web plate that select mesh larger
23；When the volume particles of the marine growth in water inlet flow channel are smaller, the rotary meshed plate 21 and bucket shape web plate 23 for selecting mesh smaller,
User can select the rotary meshed plate 21 and bucket shape web plate 23 of suitable mesh according to actual needs, therefore rotary meshed plate 21 and bucket shape web plate
23 mesh diameter is not limited.
As shown in Figures 2 and 3, in this present embodiment, rack 1 is in length direction (i.e. screen pack composite structure 2 in Fig. 2
Interior double-head arrow direction) side wall lifting slide rail mechanism 3 is installed, lifting slide rail mechanism 3 is also located at rack 1 in length side
To side wall and civil engineering structure 210 between；Preferably it is length direction one the first from left right cloth of the lifting slide rail mechanism 3 in rack 1
It sets, but not limited to this.Specifically, lifting slide rail mechanism 3 includes sliding-rail groove 31 and the roller group slided up and down along sliding-rail groove 31
Part 32, for being embedded in civil engineering structure 210 in advance, roll wheel assembly 32 is installed in rack 1 sliding-rail groove 31.Therefore rack 1 is by idler wheel
The cooperation of component 32 and sliding-rail groove 31 so that the present invention nuclear power station pumping plant pre-filtrating equipment 100 can be quickly installed in
On water inlet flow channel 200, the reaction time of intervention processing when improving reply marine biological invasion, simultaneously so that 1 oscilaltion of rack
It is more smooth, an effect being oriented to also is provided for moving up and down for rack 1, avoids rack 1 in slipping up and down from rocking, keeps
The job stability and reliability of the nuclear power station pumping plant water inlet pre-filtrating equipment 100 of the present invention.More specifically, roll wheel assembly 32 wraps
Containing rolling support member 321 and the idler wheel being installed on rolling support member 321 322, rolling support member 321 is solid with rack 1
Fixed, idler wheel 322 is located in sliding-rail groove 31 and is slided along sliding-rail groove 31, and fixing and locking mechanism 4 is arranged simultaneously along the length direction of rack 1
It is selectively placed through on rolling support member 321 and sliding-rail groove 31, therefore operating personnel are according to actual needs, locked by fixed
Mechanism 4 is placed through rolling support member 321 and sliding-rail groove 31 and locks the position of rack 1, or makes fixing and locking mechanism 4 from rolling
Wheel supporting member 321 is extracted and allows rack 1 with respect to 200 up and down adjustment of water inlet flow channel, therefore operates more flexible.For example, in
In the present embodiment, idler wheel 322 includes the first idler wheel 322a and the second idler wheel 322b, the first idler wheel 322a and sliding-rail groove 31 along rack
The cell wall of 1 width direction arrangement (i.e. arrow direction and opposite direction in Fig. 1 in water inlet flow channel 200) is in rolling contact,
The cell wall that second idler wheel 322b is arranged with sliding-rail groove 31 along 1 length direction of rack is in rolling contact, thus by the first idler wheel 322a and
The cooperation of second idler wheel 322b is effectively prevented the play in the horizontal direction during the oscilaltion of rack 1, ensures that machine
The smoothness and steady reliability of 1 oscilaltion of frame, but not limited to this.
As shown in Fig. 2, in this present embodiment, the length direction of 1 the two of mobile water fender 5 and rack is identical so that mobile
Water fender 5 is horizontally placed in water inlet flow channel 220；Mobile water fender 5 opened for the selectively opposite lifting of water inlet flow channel 200 or
Close gap X in above-below direction between the bottom and the bottom of water inlet flow channel 200 of screen pack composite structure 2.For example,
When the pollution concentration of the marine growth in water inlet flow channel 200 is relatively low, screen pack composite structure 2 at this time rises, mobile water blocking
Plate 5 blocks the gap between 2 bottom of screen pack composite structure and 200 bottom of water inlet flow channel so that sewage all passes through filtering
Web plate composite structure 2 filter after just enter downstream at, to realize filtered in the loading range of screen pack composite structure 2 it is thorough
Bottom；When the pollution concentration of the marine growth in water inlet flow channel 200 is higher, screen pack composite structure 2 at this time is dropped into water
The centre of runner 200, mobile water fender 5 up slide that directly X passes through from gap to allow a part of sewage, in filter house
The operation load of screen pack composite structure 2 is also assured after dividing sewage.
It please refers to Fig.1, Fig. 4 and Fig. 5, rack 1 include at least two rack sections 11, two adjacent rack sections along its upper and lower directions
By being segmented the splicing of bindiny mechanism 6 in one, since rack 1 is made segmental structure, so that the nuclear power of the present invention between 11
Pumping plant of standing water inlet pre-filtrating equipment 100 occupies smaller space when handling, to realize fragmented transport, storage and lifting.Specifically
Ground, segmentation bindiny mechanism 6 include to be connected to the lower bracing frame 61 of one outside in two adjacent rack sections 11 and be connected to two-phase
The upper support frame 62 of another one outside in adjacent rack section 11, upper support frame 62 is in be detachably connected with lower bracing frame 61, with letter
Change the structure of segmentation bindiny mechanism 6.More specifically, lower bracing frame 61 is equipped with the starting stave parallel with the side wall of rack section 11
611 and with 611 first level plate 612 connected vertically of starting stave；Meanwhile upper support frame 62 is equipped with the side wall with rack section 11
Parallel the second riser 621 and with 621 second level board 622 connected vertically of the second riser, first level plate 612 and the second water
Tablet 622 is layered on top of each other, one first bolt 63 be vertically placed through first level plate 612 and the second level board 622 and by this
One level board 612 and the second level board 622 are locked together, and are more conducively loaded and unloaded；Preferably be additionally provided on lower supporting plate 61 with
Second riser 611 is parallel and the connection board 613 that is arranged on the second level board 622, one second bolt 64 flatly place
Second riser 621 and connection board 613 are locked together in upper backup pad 62 and connection board 613, therefore by connection
Riser 613 and the second riser 621 are locked, so that being added to one of locking between upper and lower branch supporting rack 61,62, make to prop up above and below
Locking between support 61,62 more fastens.Meanwhile reinforcement riser is additionally provided between first level plate 612 and starting stave 611
614, to reinforce 614 center of riser and is equipped with vertical plate hole 6141, the center line of vertical plate hole 6141 is arranged along the length direction of rack 1, therefore
By riser 614 is reinforced, preventing the stress of first level plate 612 from excessively concentrating causes first level plate 612 to be broken, by riser
Handling apparatus can be passed through all vertical plate holes 6141 to facilitate handling apparatus handling rack 1 by hole 6141.
Referring to Fig. 8, the pre-filtering method 200 of the present invention includes the following steps：
S001, judge the sea biological pollution concentration in working fluid in water inlet flow channel 200.
S002, the lifting position according to judging result de-regulation rack 1 with respect to water inlet flow channel 200, so as to adjust filter screen
The filtering section ratio lambda of board combining structure 2, λ=X/ (H+h)；Wherein, as shown in Figure 1, X is the bottom of screen pack composite structure 2
Gap width between portion and the bottom of water inlet flow channel 200, H are 2 filtered water level value of screen pack composite structure, and h is filtering
2 water level penalty values of web plate composite structure；Preferably it is to filter ranging from 50%≤λ≤95% of section ratio lambda, to ensure this
The reliability that the nuclear power station pumping plant water inlet pre-filtrating equipment 100 of invention works.Specifically, in this present embodiment, section ratio is filtered
Example λ adjustment process be：When the waste concentration of the marine organisms in water inlet flow channel 200 in flow fluid sheet is big, it is adjusted to relatively low
Filtering section ratio lambda；When the marine organisms waste concentration in the working fluid in water inlet flow channel 200 is small, it is adjusted to higher
Filtering section ratio lambda, and the concentration ratio of the marine growth in water inlet flow channel 200 in working fluid height be by downstream cydariform
The maximum filtering ability of strainer is weighed.For example, in this present embodiment, the mode of adjustment filtering section ratio lambda is：When
When the pollution concentration of marine growth in water inlet flow channel 200 is relatively low, screen pack composite structure 2 at this time rises and improves filtering
Section ratio λ value；When the pollution concentration of the marine growth in water inlet flow channel 200 is higher, under screen pack composite structure 2 at this time
It drops and reduces filtering section ratio λ value.
In conjunction with attached drawing, the operation principle of the nuclear power station pumping plant water inlet pre-filtrating equipment 100 of the present invention is illustrated：By
The pre- sliding-rail groove 31 being embedded in civil engineering structure 210 and the roll wheel assembly 32 being installed in rack 1 so that rack 1 can rapidly pacify
Loaded in water inlet flow channel 200；When the sea biological pollution concentration in water inlet flow channel 200 in working fluid is relatively low, operation is solid at this time
Determine retaining mechanism 4, fixing and locking mechanism 4 is made to allow rack 1 with respect to 200 lift adjustment of water inlet flow channel, to make rack 1 rise,
It locks position after again being risen rack 1 with respect to water inlet flow channel 200 by fixing and locking mechanism 4 after rising in place；Work as water inlet
When sea biological pollution concentration in runner 200 in working fluid is larger, fixing and locking mechanism 4 is operated at this time, makes fixed locking machine
Structure 4 allows rack 1 with respect to 200 lift adjustment of water inlet flow channel, to make rack 1 decline, again by fixed locking machine after falling into place
Position after structure 4 declines rack 1 with respect to water inlet flow channel 200 is locked, to match the pre-filtering of different marine organisms concentration.
Compared with prior art, nuclear power station pumping plant of the invention water inlet pre-filtrating equipment 100 is the water inlet in original pumping plant
Increased pre-filtrating equipment on runner 200, which increase the interception filter capacities of nuclear power station pumping plant water inlet flow channel 200, can drop
The operating load of the drum type filter screen of low downstream and cause overload stall risk, effectively reduce maintenance cost, improve nuclear power station
The reliability and security of pumping plant cold source system.Simultaneously as the nuclear power station pumping plant water inlet pre-filtrating equipment 100 of the present invention includes
Rack 1, the screen pack composite structure 2 being installed in rack 1, civil engineering structure 210 and machine for being installed on water inlet flow channel 200
Between frame 1 and for the lifting slide rail mechanism 3 of 200 oscilaltion of water inlet flow channel relatively of rack 1 and for selecting 1 lifting position of rack
Selecting property locks or the fixing and locking mechanism 4 of release, therefore when facing a large amount of marine growth invasions, make by lifting slide rail mechanism 3
Nuclear power station pumping plant water inlet pre-filtrating equipment 100 of the invention is quickly installed and makes in water inlet flow channel 200, reaching quickly intervention
Purpose and the reaction time for saving reply marine growth invasion；And rack 1 adjusts filter screen board group during oscilaltion
Depth P of the structure 2 in working fluid is closed, before ensureing 100 safety of nuclear power station pumping plant water inlet pre-filtrating equipment of the present invention
It puts and plays maximum filter capacity.
The value of the person of being worth noting, above-mentioned H and h are by the standard parameter of screen pack composite structure 2, are that this field institute is ripe
The parameter value known, therefore this will not be detailed here.Meanwhile the length direction of 2 the two of rack 1 and screen pack composite structure is and water inlet
The transverse direction of runner 200 is identical, and the width direction of rack 1 is identical as the longitudinal direction of water inlet flow channel 200；For driving carrier bar 7 to lift
The structure of Power Component of rotary motion be known in the art, therefore this will not be detailed here；And it will be appreciated that when filtering
When web plate composite structure 2 need not do the rotary motion lifted, carrier bar 7 and Power Component at this time can be deleted, thus not more than
The citing stated is limited.
Above disclosed is only the preferred embodiments of the present invention, and the interest field of the present invention cannot be limited with this,
Therefore equivalent changes made in accordance with the claims of the present invention belong to the range that the present invention is covered.
Claims (21)
- The pre-filtrating equipment 1. a kind of nuclear power station pumping plant is intake, is applicable in the working fluid pre-filtering in water inlet flow channel, feature exists In：Including rack, the screen pack composite structure being installed in the rack, for the relatively described water inlet flow channel of the rack above and below The lifting slide rail mechanism of lifting and fixing and locking mechanism for the rack lifting position selectively to be locked or discharged, institute Fixing and locking mechanism is stated on the lifting slide rail mechanism or rack, the rack adjusts the filtering during upper and lower rise Depth of the web plate composite structure in the working fluid.
- The pre-filtrating equipment 2. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that the length side of the rack To identical as the length direction of screen pack composite structure.
- The pre-filtrating equipment 3. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that the rack is in length side To side wall the lifting slide rail mechanism is installed.
- The pre-filtrating equipment 4. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that the lifting slide rail mechanism Including sliding-rail groove and the roll wheel assembly slided up and down along the sliding-rail groove, the sliding-rail groove is used to be embedded in civil engineering structure in advance, The roll wheel assembly is installed in the rack.
- The pre-filtrating equipment 5. nuclear power station pumping plant according to claim 4 is intake, which is characterized in that the roll wheel assembly includes Rolling support member and the idler wheel being installed on the rolling support member, the rolling support member are fixed with the rack, The idler wheel is located in the sliding-rail groove and is slided along the sliding-rail groove, and the fixing and locking mechanism is along the length side of the rack It is placed through to arrangement and selectively on the rolling support member and sliding-rail groove.
- The pre-filtrating equipment 6. nuclear power station pumping plant according to claim 5 is intake, which is characterized in that the idler wheel includes first Idler wheel and the second idler wheel, the cell wall that first idler wheel is arranged with the sliding-rail groove along the rack width direction are in rolling contact, The cell wall that second idler wheel is arranged with the sliding-rail groove along the rack length direction is in rolling contact.
- The pre-filtrating equipment 7. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that further include selectively phase To the mobile water fender of the water inlet flow channel oscilaltion, the length side of the length direction and the rack of the mobile water fender To identical, the mobile water fender is turned on and off the filter screen board group for the selectively relatively described water inlet flow channel lifting Close gap in above-below direction between the bottom and the bottom of the water inlet flow channel of structure.
- The pre-filtrating equipment 8. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that the screen pack combination Structure is in be replaceably mounted in the rack.
- The pre-filtrating equipment 9. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that the rack is above and below it Direction includes at least two rack sections, is spliced in one by being segmented bindiny mechanism between the two adjacent rack sections.
- The pre-filtrating equipment 10. nuclear power station pumping plant according to claim 9 is intake, which is characterized in that the segmentation connection machine Structure includes to be connected to the lower bracing frame of one outside in the two adjacent rack sections and be connected in the two adjacent rack sections The upper support frame of another one outside, the upper support frame are in be detachably connected with the lower bracing frame.
- The pre-filtrating equipment 11. nuclear power station pumping plant according to claim 10 is intake, which is characterized in that the lower bracing frame is set Have the starting stave parallel with the side wall of rack section and with starting stave first level plate connected vertically；On described Supporting rack is horizontal equipped with second riser parallel with the side wall of rack section and with second riser connected vertically second Plate, the first level plate are layered on top of each other with the second level board, one first bolt be vertically placed through the first level plate and Second level board and the first level plate and the second level board are locked together.
- The pre-filtrating equipment 12. nuclear power station pumping plant according to claim 11 is intake, which is characterized in that on the lower supporting plate It is additionally provided with connection board that is parallel with second riser and being arranged on second level board, one second bolt is flatly It is placed through the upper backup pad and connection board and is locked together second riser and connection board.
- The pre-filtrating equipment 13. nuclear power station pumping plant according to claim 11 is intake, which is characterized in that the first level plate Reinforcement riser is additionally provided between the starting stave, the reinforcement riser center is equipped with vertical plate hole, the center of the vertical plate hole Line is arranged along the length direction of the rack.
- The pre-filtrating equipment 14. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that the filter screen board group It is the hollow loop configuration that head and the tail are closed to close structure.
- The pre-filtrating equipment 15. nuclear power station pumping plant according to claim 1 is intake, which is characterized in that further include for driving The screen pack composite structure does the carrier bar of lift rotary movement and provides the Power Component of power, the chain for the carrier bar Plate includes multiple chain slab elements for crossing closed loop configuration jointly, and multiple chain slab elements head and the tail are hinged so that the carrier bar does and lifts Rotary motion, and the chain slab element has the opening communicated with the space that the closed loop configuration is enclosed, the filter screen board group It includes rotary meshed plate to close structure, and the rotary meshed plate is in rotatably to be set in the chain slab element；Periodicity is done in the carrier bar Lift rotary movement during, while the rotary meshed plate follows the carrier bar to do the movement of periodic lift rotary, The rotary meshed plate also rotates relative to the carrier bar and is periodically opened and closed the opening.
- The pre-filtrating equipment 16. nuclear power station pumping plant according to claim 15 is intake, which is characterized in that the rotary meshed plate in The carrier bar drives in uphill process and automatically is rotated to the position for being closed the opening by the gravity of the rotary meshed plate；Institute Rotary meshed plate is stated automatically to be rotated to described in opening by the gravity of the rotary meshed plate during the carrier bar drives and declines The position of opening.
- The pre-filtrating equipment 17. nuclear power station pumping plant according to claim 16 is intake, which is characterized in that the filter screen board group It includes the first frame to close structure also, and first frame is installed in the chain slab element, and the rotary meshed plate is along the carrier bar Lift rotary direction have positioned at front and the installation end for pivot joint and free end positioned at the installation end rear, it is described Installation end is pivotally connected with first frame.
- The pre-filtrating equipment 18. nuclear power station pumping plant according to claim 15 is intake, which is characterized in that the filter screen board group It includes bucket shape web plate and the second frame to close structure also, and the bucket shape web plate is installed on second frame, second frame It is installed in the chain slab element without the rotary meshed plate.
- The pre-filtrating equipment 19. nuclear power station pumping plant according to claim 18 is intake, which is characterized in that bucket shape web plate edge The lift rotary direction of the carrier bar is alternately arranged successively with the rotary meshed plate.
- The pre-filtering of pre-filtrating equipment 20. a kind of application is intake according to claim 1 to 19 any one of them nuclear power station pumping plant Method, which is characterized in that include the following steps：(1) judge the sea biological pollution concentration in working fluid in water inlet flow channel；And(2) lifting position according to rack described in judging result de-regulation with respect to water inlet flow channel, so as to adjust the screen pack The filtering section ratio lambda of composite structure, λ=X/ (H+h)；Wherein, X is bottom and the feed water flow of the screen pack composite structure Gap width between the bottom in road, H are the filtered water level value of screen pack composite structure, and h is the filter screen board group Close constitution water bit-loss value.
- 21. pre-filtering method according to claim 20, which is characterized in that the filtering section ratio lambda is ranging from 50%≤λ≤95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065684.1A CN108295533B (en) | 2018-01-23 | 2018-01-23 | Pre-filtering device and pre-filtering method for inlet water of nuclear power station pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065684.1A CN108295533B (en) | 2018-01-23 | 2018-01-23 | Pre-filtering device and pre-filtering method for inlet water of nuclear power station pump station |
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| Publication Number | Publication Date |
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| CN108295533A true CN108295533A (en) | 2018-07-20 |
| CN108295533B CN108295533B (en) | 2020-06-16 |
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| CN201810065684.1A Active CN108295533B (en) | 2018-01-23 | 2018-01-23 | Pre-filtering device and pre-filtering method for inlet water of nuclear power station pump station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115317996A (en) * | 2022-07-04 | 2022-11-11 | 中广核研究院有限公司 | Front water inlet pre-interception filter device of nuclear power plant pump station |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553329A (en) * | 2012-01-22 | 2012-07-11 | 江苏一环集团有限公司 | Rotary fine screen for water treatment and application of rotary fine screen to water treatment |
| CN103979638A (en) * | 2014-05-27 | 2014-08-13 | 重庆市三峡水务有限责任公司 | Submerged chain conveyor for dross in oxidation ditch |
| CN204034418U (en) * | 2014-07-03 | 2014-12-24 | 中国神华能源股份有限公司 | For the circulation of generating set |
| CN104587720A (en) * | 2014-12-24 | 2015-05-06 | 杨军峰 | Sewage anti-blockage machine |
| CN205294913U (en) * | 2015-12-11 | 2016-06-08 | 天津港东疆建设开发有限公司 | Sewage removes filter equipment in advance that chlorine was used |
| CN206267111U (en) * | 2016-12-23 | 2017-06-20 | 陈新 | Hydraulic engineering river course gate |
-
2018
- 2018-01-23 CN CN201810065684.1A patent/CN108295533B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553329A (en) * | 2012-01-22 | 2012-07-11 | 江苏一环集团有限公司 | Rotary fine screen for water treatment and application of rotary fine screen to water treatment |
| CN103979638A (en) * | 2014-05-27 | 2014-08-13 | 重庆市三峡水务有限责任公司 | Submerged chain conveyor for dross in oxidation ditch |
| CN204034418U (en) * | 2014-07-03 | 2014-12-24 | 中国神华能源股份有限公司 | For the circulation of generating set |
| CN104587720A (en) * | 2014-12-24 | 2015-05-06 | 杨军峰 | Sewage anti-blockage machine |
| CN205294913U (en) * | 2015-12-11 | 2016-06-08 | 天津港东疆建设开发有限公司 | Sewage removes filter equipment in advance that chlorine was used |
| CN206267111U (en) * | 2016-12-23 | 2017-06-20 | 陈新 | Hydraulic engineering river course gate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115317996A (en) * | 2022-07-04 | 2022-11-11 | 中广核研究院有限公司 | Front water inlet pre-interception filter device of nuclear power plant pump station |
| WO2024007525A1 (en) * | 2022-07-04 | 2024-01-11 | 中广核研究院有限公司 | Front water inlet pre-intercepting and filtering device for pump station of nuclear power plant |
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| CN108295533B (en) | 2020-06-16 |
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