CN104929225B - The construction method of tandem type concentrated seawater row sea disperser - Google Patents
The construction method of tandem type concentrated seawater row sea disperser Download PDFInfo
- Publication number
- CN104929225B CN104929225B CN201510159760.1A CN201510159760A CN104929225B CN 104929225 B CN104929225 B CN 104929225B CN 201510159760 A CN201510159760 A CN 201510159760A CN 104929225 B CN104929225 B CN 104929225B
- Authority
- CN
- China
- Prior art keywords
- releasing
- concentrated seawater
- disperser
- arm
- straight main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 66
- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000009792 diffusion process Methods 0.000 claims abstract description 42
- 238000002156 mixing Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 14
- 235000011613 Pinus brutia Nutrition 0.000 claims description 14
- 241000018646 Pinus brutia Species 0.000 claims description 14
- 229920001903 high density polyethylene Polymers 0.000 claims description 14
- 239000004700 high-density polyethylene Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 241000272165 Charadriidae Species 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000011049 filling Methods 0.000 description 14
- 150000004767 nitrides Chemical class 0.000 description 12
- 238000013461 design Methods 0.000 description 9
- 238000010612 desalination reaction Methods 0.000 description 7
- 239000003643 water by type Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Revetment (AREA)
Abstract
The invention discloses the construction method of tandem type concentrated seawater row sea disperser, including pre-trench digging construction procedure, pipe laying construction step, backfill construction procedure and on-demand dilatation step.This method can carry out outer row's dilatation according to the outer discharge capacity of concentrated seawater.Preset balance pipe fitting and can effectively prevent the problem that in prior art, pipeline glides.Using mud can reduce cost, and easy construction, practical effect also can reach engine request, can be as preferred half-way house.The bottom seawater that prior art is ignored can be participated in by the on-demand cascade mixing tube set up and water down in mixing, the region utilizing nature seawater can be made more to disperse by the length extending diffusion arm, many is reduced to environmental pressure.Thus the present invention has while having preferable engineering pre-Office Copy the advantage preventing landslide, dilatation emergency capability strong.
Description
Technical field
The present invention relates to a kind of concentrated seawater row sea disperser construction method, particularly relate to tandem type concentrated seawater row sea diffusion
The construction method of device.
Background technology
At present, China builds kiloton and the ton demonstration project with independent intellectual property right.Tianjin, Zhejiang, river
Multiple tons such as north, Qingdao, Dalian and 10 ton seawater utilization engineerings are gone into operation operation in succession.And the desalinization thing of China
Industry is currently in the flourish primary stage, and the ratio accounting for China's fresh water usage amount is very little, but the great efforts of development, prospect
Good.Expecting 2015, China's desalinization ability is up to 220 ten thousand to 260 ten thousand steres/day generally, to coastal lack of water
The contribution rate of the newly-increased fresh water output in area is to more than 15%.
With the enforcement of extensive Seawater Desalination Project, the emission problem of a large amount of high salinity concentrated seawater of its by-product causes
The concern of people.Existing method for desalting seawater Water Sproading rate is relatively low, and the Water Sproading rate of hot method sea water desalinating unit is 15%-50%,
The Water Sproading rate of Membrane seawater desalination device is only 30%-40%, and remaining major part seawater strong brine after desalination is directly flow back to
Sea.Though having no the report that environment is had a significant effect by middle and small scale Seawater Desalination Project, but in heavy construction, especially in envelope
Closed sea territory, the impact on ecological environment for the high salinity concentrated seawater is apparent from.The composition of discharge strong brine, concentration, heat, corruption
Erosion product has had a strong impact on marine environment with cleaning discharge water etc., and it is unfavorable to produce ocean water quality, ecological environment and marine organisms
Impact.
For solving the problems referred to above, Chinese utility model patent " a kind of seabeach drain structure for water ", notification number 202380564U,
Open seabeach row Haikou device and structure thereof.Although corresponding device simple in construction, easy for installation, but it is for cobble granule density
Control and row sea energy consumption still have much room for improvement.Meanwhile, the consideration of known technology pre-Office Copy for engineering is not enough, it is difficult to meet later stage work
The row sea of Cheng Fazhan requires.The method generally using new equipment to change used equipment makes up, and so significantly increases the fortune of device
Row cost and renewal of the equipment expense.
Content of the invention
Present invention aims to anti-on-slip while prior art provides one to have preferable engineering pre-Office Copy
The construction method of the strong tandem type concentrated seawater row sea disperser of slope, dilatation emergency capability.
The technical scheme that the present invention solves that above-mentioned technical problem used is: executing of tandem type concentrated seawater row's sea disperser
Work method, including, wherein: comprise the steps,
1. in advance ditch construction procedure: on the sea bed of pre-Dinghai District excavate a zanjon；Bottom zanjon lay 400～
The riprap layer of 600mm, and on this riprap layer, lay the thin filling nitride layer of 150～250mm；
2. pipe laying construction step: side is set along zanjon direction in thin filling nitride layer there is releasing directly of diffusion arm
Main, straight main end of releasing is closed, and is connected the default balance pipe fitting of long 10～20 meters at this end；
3. construction procedure is backfilled: releasing on straight main in the way of natural way or manual type or both's combination
Backfill；
4. on-demand dilatation step: according to the outer discharge capacity of concentrated seawater, on-demand connect duckbill valve on diffusion arm and or can will spread
Prop up the cascade mixing tube again discharged after the water outside tube end sucks and mixes；Or according to the outer discharge capacity of concentrated seawater, opening steps
2. close, and default balance pipe fitting is replaced with one section of new straight main of releasing and carries out outer row's dilatation.Owing to releasing, straight main needs
In embedment thin filling nitride layer, and riprap layer props up end and prevents straight main downslide of releasing.If there is a need to straight main of releasing in the future
Extend, thin filling nitride layer and riprap layer need to be excavated again, therefore can increase the cost of this operation.Release straight main top use
Concrete process after one-shot forming, more firmly, in conjunction with bottom default balance pipe fitting can effectively prevent pipeline in prior art
The problem gliding.Using mud can reduce cost, and easy construction, practical effect also can reach engine request,
Can be as preferred half-way house.The bottom seawater that prior art is ignored can be participated in by the on-demand cascade mixing tube set up
Watering down in mixing, will water down mixed decomposition is two steps, i.e. the first step is existing by the seawater sucking outside diffusion arm and diffusion
Concentrated seawater in arm carries out mixing for the first time, and then spraying at anemostat end is again to mix with nature seawater to water down, because of
And the region utilizing nature seawater can be made more to disperse by the length extending diffusion arm, many is reduced to environmental pressure.
Thus reach to increase designing and arranging high-volume, reduce volume increase cost, owing to cascade mixing tube is demountable, thus there is emergent work(
Energy.
For optimize technique scheme, the measure taked also includes: step 2. in, straight main of releasing use inverted U fix
Bolt is fixed in thin filling nitride layer.Two ends of inverted U gim peg are fixed on bottom seabeach.Straight main of releasing need to possess anticorrosion
Property and pressure-bearing property.Optional use HDPE multiple tube, three-decker PE pipe, interior outer lining mould stainless pipe steel, individual layer fusion bonded epoxy powder
End coated pipe etc., preferably HDPE multiple tube and PE pipe.Step 3. in, natural way backfill is for backfilling sea through wave or tide
End mud；Thin fill or mud are backfilled by manual type backfill for using manual type.Mainly should be according to the depth in sea area, stream
The natural situations such as speed, take into account cost and consider the selection of people's back-filling way.Cascade mixing tube includes to be connected with diffusion arm
Playpipe；Cascade mixing tube also has the anemostat of the hollow being connected with playpipe gap, and playpipe is through frame
Empty connection fixes anemostat.The playpipe of diffusion arm uses flange to be connected with cascade mixing tube.Engineering plastics flange can be used,
Fluorine-lined flange, zinc-plated flange etc., wherein consider the preferred zinc-plated flange of cost.Anemostat middle inside has the stringcourse narrowing and narrows
Structure；The ratio of the distance that the interior bead diameter of the jet of playpipe and stringcourse are narrowed to this jet is 1:1.7 to 1:
2.5.Freshwater-seawater mixing effect in this interval is preferable, and technical ability reaches design and requires, difficulty of construction also rather moderate simultaneously, portion
The technological requirement of part is relatively easy to meet.Built on stilts being connected by connects injection through the first anchor ear and second anchor ear of connecting rod connection
Pipe and anemostat.Connecting rod is circumferentially uniformly distributed, thus reduces the resistance of Seawater inhalation, at utmost ensures the mixed of seawater
The light effect of syzygies.Release straight main endcapped, and also be connected with and newly cut pine block；Newly cut the diameter of pine block more than or etc.
Diameter in straight main of releasing.For the ease of the extension of straight main of releasing, install a joint diameter additional at straight main end of releasing slightly larger
In the column of straight dry tube diameter of releasing, this column need to have corrosion-resistant, and the characteristic that density can not be excessive, may select and newly cuts
Pine, hollow out lead block, HDPE multiple tube etc., wherein preferred HDPE multiple tube, newly cut pine.If later stage engine request expands further
The flange end socket of straight main end of releasing can be opened by the discharge capacity of big concentrated seawater, reserves the construction space of bigger caliber very
Corresponding extension convenient to carry out, possesses buoyancy and also allows for removing former default balance pipe fitting.While being easy to extend, have one
Fixed buoyancy, can provide corresponding adaptation buoyancy to whole device.There is the advantage of good pre-Office Copy and rapid construction, energy
Meet the demand of emergency processing.The caliber of diffusion arm increases to straight main end of releasing successively from straight main base portion of releasing；Expand
Scattered arm is positioned above straight main of releasing, and spread arm be clearance-type straight line arrangement.The spacing of described diffusion arm is equal,
But the diameter of diffusion arm expands towards straight main end direction of releasing.Described diffusion arm and main of releasing straight between and expand
Dissipating all uses flange to be connected between arm with duckbill valve.Without duckbill valve on the downside of the diffusion branch diameter increasing successively and upper duckbill valve
Structure permutation arm emission flow can be made more to balance, cause local concentration by preventing indivedual arm delivery flow excessive
Excessive and affect environment.Preset balance pipe fitting and cut pine or hollow out lead block or iron pipe or HDPE multiple tube selected from newly.
Comprise the steps owing to present invention employs,
1. in advance ditch construction procedure: on the sea bed of pre-Dinghai District excavate a zanjon；Bottom zanjon lay 400～
The riprap layer of 600mm, and on this riprap layer, lay the thin filling nitride layer of 150～250mm；
2. pipe laying construction step: in thin filling nitride layer, side is set along zanjon direction and there is releasing of diffusion arm
Straight main, straight main end of releasing is closed, and is connected the default balance pipe fitting of long 10～20 meters at this end；
3. construction procedure is backfilled: at straight main of releasing in the way of natural way or manual type or both's combination
On backfill；
4. on-demand dilatation step: according to the outer discharge capacity of concentrated seawater, on-demand connect duckbill valve on diffusion arm and or can will spread
Prop up the cascade mixing tube again discharged after the water outside tube end sucks and mixes；Or according to the outer discharge capacity of concentrated seawater, opening steps
2. close, and default balance pipe fitting is replaced with one section of new straight main of releasing and carries out outer row's dilatation.Owing to releasing, straight main needs
In embedment thin filling nitride layer, and riprap layer props up end and prevents straight main downslide of releasing.If there is a need to straight main of releasing in the future
Extend, thin filling nitride layer and riprap layer need to be excavated again, therefore can increase the cost of this operation.Release straight main top use
Concrete process after one-shot forming, more firmly, in conjunction with bottom default balance pipe fitting can effectively prevent pipeline in prior art
The problem gliding.Using mud can reduce cost, and easy construction, practical effect also can reach engine request,
Can be as preferred half-way house.The bottom seawater that prior art is ignored can be participated in by the on-demand cascade mixing tube set up
Watering down in mixing, will water down mixed decomposition is two steps, i.e. the first step is existing by the seawater sucking outside diffusion arm and diffusion
Concentrated seawater in arm carries out mixing for the first time, and then spraying at anemostat end is again to mix with nature seawater to water down, because of
And the region utilizing nature seawater can be made more to disperse by the length extending diffusion arm, many is reduced to environmental pressure.
Thus reach to increase designing and arranging high-volume, reduce volume increase cost, owing to cascade mixing tube is demountable, thus there is emergent work(
Energy.Thus the present invention prevents landslide, dilatation emergency capability strong advantage while having preferable engineering pre-Office Copy.
Brief description
Fig. 1 is embodiment of the present invention construction procedure flow chart；
Fig. 2 is embodiment of the present invention structural representation；
Fig. 3 embodiment of the present invention cascades mixing tube structural representation.
Detailed description of the invention
Below in conjunction with attached embodiment, the present invention is described in further detail.
Drawing reference numeral illustrates: the 5th, the 2nd, straight main the 1st, duckbill valve of releasing spread arm the 3rd, inverted U gim peg the 4th, flange end socket newly
Cut pine block the 6th, thin fill the 7th, jackstone the 8th, cascade mixing tube the 9th, playpipe the 91st, jet 91a, anemostat the 92nd, mix mouth 92a,
Stringcourse narrows 92b, the first anchor ear the 93rd, the second anchor ear the 94th, connecting rod 95.
Embodiment: referring to figs. 1 through Fig. 3, tandem type concentrated seawater arranges the construction method of sea disperser, including, wherein: include
Following steps,
1. in advance ditch construction procedure: on the sea bed of pre-Dinghai District excavate a zanjon；Bottom zanjon lay 400～
The jackstone of 600mm 8 layers, and on this riprap layer, lay the thin fill 7 layers of 150～250mm；
2. pipe laying construction step: side is set along zanjon direction on thin fill 7 layers there is releasing of diffusion arm 3
Straight main 1, straight main 1 end of releasing is closed, and is connected the default balance pipe fitting of long 10～20 meters at this end；
3. construction procedure is backfilled: at straight main 1 of releasing in the way of natural way or manual type or both's combination
On backfill；
4. on-demand dilatation step: according to the outer discharge capacity of concentrated seawater, on-demand connect duckbill valve 2 on diffusion arm 3 and or can will expand
Dissipate the cascade mixing tube 9 again discharged after the water outside arm 3 end sucks and mixes；Or according to the outer discharge capacity of concentrated seawater, open
2. step is closed, and replaces with one section of new straight main 1 of releasing and carry out outer row's dilatation default balance pipe fitting.Straight dry owing to releasing
Pipe 1 need to be imbedded in thin fill 7 layers, and riprap layer 8 props up the end straight main 1 that prevents from releasing and glides.If there is a need in the future to putting
Flow straight main 1 to extend, thin fill 7 layers and jackstone 8 layers need to be excavated again, therefore can increase the cost of this operation.Release
The one-shot forming after concrete process of straight main 1 top, more firmly, in conjunction with bottom default balance pipe fitting can effectively prevent existing
There is the problem that in technology, pipeline glides.Using mud can reduce cost, and easy construction, practical effect also can reach
To engine request, can be as preferred half-way house.End prior art can ignored by the on-demand cascade mixing tube 9 set up
Layer seawater participates in and waters down in mixing, and will water down mixed decomposition is two steps, and i.e. the first step is existing sucks outside diffusion arm 3
Seawater carry out mixing for the first time with the concentrated seawater in diffusion arm 3, then the ejection of anemostat 92 end be again with nature
Sea water mixing waters down, thus the region utilizing nature seawater can be made more to disperse by the length extending diffusion arm 3, to ring
Border pressure reduces many.Thus reach increase designing and arranging high-volume, reduce volume increase cost, due to cascade mixing tube 9 be to dismantle
, thus there is emergency function.Step 2. in, straight main 1 of releasing uses inverted U gim peg 4 to be fixed on thin fill 7 layers.
Two ends of inverted U gim peg 4 are fixed on bottom seabeach.Straight main 1 of releasing need to possess anti-corrosive properties and pressure-bearing property.May select makes
Mould stainless pipe steel, individual layer External fusion bonded epoxy coating pipe etc., preferably HDPE with HDPE multiple tube, three-decker PE pipe, interior outer lining
Multiple tube and PE pipe.Step 3. in, natural way backfill is for backfilling bottom silt through wave or tide；Manual type backfills
For using manual type to backfill thin fill 7 or mud.Mainly should take into account according to natural situations such as the depth in sea area, flow velocitys
Cost considers the selection of people's back-filling way.Cascade mixing tube 9 includes the playpipe 91 being connected with diffusion arm 3；Cascade
Mixing tube 9 also has the anemostat 92 of the hollow being connected with playpipe 91 gap, and playpipe 91 is through built on stilts connection
Fixing anemostat 92.The playpipe 91 of diffusion arm 3 uses flange to be connected with cascade mixing tube 9.Engineering plastics flange can be used,
Fluorine-lined flange, zinc-plated flange etc., wherein consider the preferred zinc-plated flange of cost.Anemostat 92 middle inside has the stringcourse narrowing and receives
Narrow 92b structure；Interior bead diameter and the stringcourse of the jet 91a of playpipe 91 narrow the ratio of the distance to this jet 91a for the 92b
Value is 1:1.7 to 1:2.5.Freshwater-seawater mixing effect in this interval is preferable, and technical ability reaches design and requires, difficulty of construction simultaneously
Also rather moderate, the technological requirement of parts is relatively easy to meet.Built on stilts the first anchor ear 93 being connected by connecting through connecting rod 95
Connect playpipe 91 and anemostat 92 with the second anchor ear 94.Connecting rod 95 is circumferentially uniformly distributed, thus reduces Seawater inhalation
Resistance, at utmost ensure seawater mixing water down effect.Release straight main 1 endcapped, and also be connected with and newly cut pine
Wooden unit 6；Newly cut the diameter more than or equal to straight main 1 of releasing for the diameter of pine block 6.For the ease of the extension of straight main of releasing,
Installing, at straight main end of releasing, the column that a joint diameter is slightly larger than straight dry tube diameter of releasing additional, this column need to have corrosion resistant
Erosion, and the characteristic that density can not be excessive, optional pine, hollow out lead block, the HDPE multiple tube etc. newly cut, wherein preferred HDPE is combined
Manage, newly cut pine.If later stage engine request expands the discharge capacity of concentrated seawater further, can be by the flange of straight main 1 end of releasing
End socket 5 is opened, and the construction space reserving bigger caliber extends quite convenient for enforcement is corresponding, possesses buoyancy and also allows for presetting former
Balance pipe fitting is removed.While being easy to extend, there is certain buoyancy, corresponding adaptation can be provided to whole device floating
Power.There is the advantage of good pre-Office Copy and rapid construction, the demand of emergency processing can be met.The caliber of diffusion arm 3 is put certainly
Flow straight main 1 base portion to increase successively to straight main 1 end of releasing；Diffusion arm 3 is positioned above straight main 1 of releasing, and spreads
Arm 3 is arranged in clearance-type straight line.The spacing of described diffusion arm is equal, but the diameter of diffusion arm is towards straight main end of releasing
Extreme direction expands.Described diffusion arm and main of releasing straight between and diffusion arm and duckbill valve between all use flange even
Connect.On the downside of diffusion arm 3 caliber increasing successively and upper duckbill valve 2, the structure without duckbill valve 2 can make permutation arm emission flow
More balance, caused local concentration excessive by preventing indivedual arm delivery flow excessive and affect environment.Preset balance pipe
Part cuts pine or hollow out lead block or iron pipe or HDPE multiple tube selected from newly.
The concentrated seawater being applied to southeastern coast island seawater desalting plant is arranged sea, this seawater desalting plant by the present embodiment design
Three phase final scales be up to produce 100,000 tons of desalination waters daily.First phase scale is contemplated to 20,000 tons of desalination waters of day, second phase scale
It is contemplated to produce 60,000 tons of desalination waters daily.Wherein, the construction of the third stage of the project requires according to local demand and enterprise development.Therefore design dense
During seawater discharge pipe device, flow rate upper limit is according to discharging 60,000 tons of concentrated seawater meters day, and carries out according to discharging 100,000 tons of concentrated seawaters day
Reserved, and in the case that the daily output continues and increases, set up cascade mixing tube 9, according to the interim on-demand increase and decrease duck of row's situation outside manufacturer
Mouth valve, to improve diffusion effect further.
1. plant bulk design
The main investigation parameter of the extra large diffusion of concentrated seawater row is design initial dilution Sc, the water in this parameter and marine site, place
The factors such as stream, tide are related to.According to local hydrologic condition, " polluter smoking pipeline engineering technical specification " [GB19570-2000] with
And industrial wastewater discharge relevant criterion, design initially degree of releasing Sc is more than 70.In the situation that design initially degree of releasing is 75-80
Under, require according to hydrodynamics and plant area's concentrated seawater discharge maximum stream flow, determine that the diameter range of straight main of releasing can be
DN500-DN900, the present embodiment selects the HDPE multiple tube of DN600 as straight main of releasing.
Though the design discharge of the present embodiment is according to 60,000 tons of fresh water meters of daily output of the second stage of the project, but longer in view of the duration,
After first stage of the project is gone into operation, first offer first three in five diffusers, and the two of end diffuser flanges are shut.Diffusion
The diameter range of arm selects DN300, end two diffusion at DN250-DN450, first three diffusion arm diameter of the present embodiment
Arm selects DN400, selects to use neoprene duckbill valve simultaneously.Duckbill valve is gradually set up in increase according to yield, then again
Set up cascade mixing tube 9, increase the release length of straight main 1 and the quantity of corresponding arm and appurtenances further.
2. device construction
1) pre-trench digging construction
The present embodiment uses the shallow water dredger that common shallow water barge repacks into, i.e. positioning is pretended in the both sides at flat-bottomed barge
Stake system, is advanced by literary composition cable traction, fixes the reverse forklift of common road hydraulic pressure above deck, be used for ditching.Trench digging is vertical after completing
I.e. under the cooperation of diver, spread the thick jackstone of 400-600mm at bottom of trench, and on it, lay the thick thin dress of 150-250mm
Fill out nitride layer.The material of thin filling nitride layer please makes reference to the text-book voluntarily, does not repeats them here.
2) pipe laying construction
Setting, on thin filling nitride layer upper berth, straight main of releasing, the end at straight main of releasing lays long 10-20 Miho Dockyard N600-
The HDPE multiple tube of DN700.Finally fix stake to straight main of releasing with door type [i.e. inverted U] the 40# channel-section steel of long 10-15 rice
And HDPE multiple tube is fixed, the spacing between two spud piles is 4-8 rice.
3) backfill construction
Back-filling way includes nature backfill and artificial backfill two ways.Naturally backfill refers to after pipe laying by natural mud
Backfill, artificial backfill refers to that pipe laying is backfilled by the manually mode with mechanical bond after finishing.This example uses nature backfill and people
The mode of work backfill, had both met the needs of engineering, reduced again cost simultaneously.
Although having combined preferred embodiment to describe the present invention, so it is not limited to the present invention, any this area
Technical staff, without departing from the spirit and scope of the present invention, can implement various changing to the theme here listed
Change, the displacement of coordinate and modification, therefore protection scope of the present invention is when the claim restriction depending on being proposed is in the range of standard.
Claims (8)
1. the construction method of tandem type concentrated seawater row sea disperser, is characterized in that: comprise the steps,
1. in advance ditch construction procedure: on the sea bed of pre-Dinghai District excavate a zanjon；Bottom described zanjon lay 400～
Jackstone (8) layer of 600mm, and on this riprap layer, lay thin fill (7) layer of 150～250mm；
2. pipe laying construction step: on described thin fill (7) layer, side is set along described zanjon direction and there is diffusion
Described straight main (1) end of releasing is closed by the straight main (1) of releasing of arm (3), and this end connect long by 10～
The default balance pipe fitting of 20 meters；
3. construction procedure is backfilled: at described straight main of releasing in the way of natural way or manual type or both's combination
(1) backfill on；
4. on-demand dilatation step: according to the outer discharge capacity of concentrated seawater, on-demand described diffusion arm (3) upper connect duckbill valve (2) or
The cascade mixing tube (9) again discharged after water outside described diffusion arm (3) end can be sucked and mixes；Or according to dense
The outer discharge capacity of seawater, the 2. described closing of opening steps, and described default balance pipe fitting is replaced with one section of new straight doing of releasing
Pipe (1) carries out outer row's dilatation；
Described cascade mixing tube (9) includes the playpipe (91) being connected with described diffusion arm (3)；Described cascade mixes
Close pipe (9) and also there is the anemostat (92) of the hollow being connected with described playpipe (91) gap, and playpipe
(91) fixing anemostat (92) is connected through built on stilts.
2. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: step is 2.
In, described straight main (1) of releasing uses inverted U gim peg (4) to be fixed on described thin fill (7) layer.
3. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: step is 3.
In, described natural way backfill is for backfilling bottom silt through wave or tide；Described manual type backfill is for using people
Thin fill (7) or mud are backfilled by work mode.
4. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: described expansion
Scattered pipe (92) middle inside has the stringcourse narrowing and narrows (92b) structure；The jet (91a) of described playpipe (91) interior
The ratio that bead diameter and described stringcourse narrow (92b) distance to this jet (91a) is 1:1.7 to 1:2.5.
5. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: described frame
Sky is connected by the first anchor ear (93) of connecting through connecting rod (95) and the second anchor ear (94) connect described playpipe (91) and
Anemostat (92).
6. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: described is pre-
If balance pipe fitting is for newly cutting pine block (6)；The described diameter newly cutting pine block (6) is more than or equal to described straight main of releasing
(1) diameter.
7. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: described expansion
The caliber dissipating arm (3) increases to straight main (1) end of releasing successively from described straight main (1) base portion of releasing；Described expansion
Dissipate arm (3) and be positioned at straight main (1) top of releasing, and spread arm (3) and arrange in clearance-type straight line.
8. the construction method of tandem type concentrated seawater according to claim 1 row sea disperser, is characterized in that: described is pre-
If balance pipe fitting cuts pine or hollow out lead block or iron pipe or HDPE multiple tube selected from newly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159760.1A CN104929225B (en) | 2015-07-28 | 2015-07-28 | The construction method of tandem type concentrated seawater row sea disperser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159760.1A CN104929225B (en) | 2015-07-28 | 2015-07-28 | The construction method of tandem type concentrated seawater row sea disperser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104929225A CN104929225A (en) | 2015-09-23 |
| CN104929225B true CN104929225B (en) | 2016-10-05 |
Family
ID=54116632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510159760.1A Active CN104929225B (en) | 2015-07-28 | 2015-07-28 | The construction method of tandem type concentrated seawater row sea disperser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104929225B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547413Y (en) * | 2002-06-16 | 2003-04-30 | 李开才 | Liquid mixed spraying apparatus preventing medicem counter-flow |
| CA2429204A1 (en) * | 2003-05-16 | 2004-11-16 | Mikulas Pohanka | Propulsion system of a ship, by ejection of water with a pump |
| CN202380564U (en) * | 2012-01-05 | 2012-08-15 | 天津市赛英工程建设咨询管理有限公司 | Beach waterspout structure |
| CN202969343U (en) * | 2012-11-15 | 2013-06-05 | 浙江海洋学院 | Diffusion device in discharging thick seawater into sea |
-
2015
- 2015-07-28 CN CN201510159760.1A patent/CN104929225B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104929225A (en) | 2015-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104695380A (en) | Revetment structure composed of plastic steel plate piles and concrete | |
| CN1558129A (en) | Construction method for river crossing pipeline | |
| CN202969343U (en) | Diffusion device in discharging thick seawater into sea | |
| CN204626611U (en) | Tandem type concentrated seawater bottom delivery pipe structure | |
| JP2013253444A (en) | Multilayer sewerage pipe | |
| CN104929225B (en) | The construction method of tandem type concentrated seawater row sea disperser | |
| CN104831801B (en) | Tandem type concentrated seawater arranges extra large disperser | |
| CN104831800B (en) | Eco-friendly tandem type concentrated seawater discharge method | |
| CN204570663U (en) | Hydraulic reclamation district barged-in fill isotropic deposit tapping equipment | |
| CN204626609U (en) | Concentrated seawater bottom delivery pipe structure | |
| JP4129762B2 (en) | Sea surface waste disposal site | |
| CN104831799B (en) | A kind of extra large disperser of concentrated seawater row | |
| CN201580547U (en) | Pontoon applicable to excavation operation on water surface | |
| CN101624816A (en) | Building method for inverted filter of inner side of artificial island riprap mole island wall | |
| KR101080088B1 (en) | Ecological environmental water retention system and construction method thereof | |
| CN208917783U (en) | Scoop pump sand ship dredge fill system | |
| CN102400451B (en) | Gravity geotextile pipe mud grouting device | |
| CN217355827U (en) | Water injection system capable of achieving simultaneous laying of multiple large-diameter pipelines in balanced mode | |
| JP2003301690A (en) | Construction method and device for laying rehabilitation pipe in existing sewage pipe | |
| CN2679245Y (en) | Underwater ditcher for pipeline-crossing river | |
| RU189627U1 (en) | PIPE FOR INFORMATION-FREE DRAINAGE NETWORKS | |
| JP2007308884A (en) | Vertical direction seawater exchanging device | |
| JP7481799B2 (en) | Method for manufacturing material for forming structure including inclined portion and method for forming same | |
| KR101826242B1 (en) | Construction sysetm for using low fluidity mortar and construction method thereof | |
| Verros et al. | Design Considerations of MPSO Marine Outfall and Diffuser Field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |