CN205569851U - Seawater desalination uses horizontal filter for installation - Google Patents
Seawater desalination uses horizontal filter for installation Download PDFInfo
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- CN205569851U CN205569851U CN201520873898.3U CN201520873898U CN205569851U CN 205569851 U CN205569851 U CN 205569851U CN 201520873898 U CN201520873898 U CN 201520873898U CN 205569851 U CN205569851 U CN 205569851U
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Abstract
The utility model provides a seawater desalination uses horizontal filter for installation, it is equipped with barrel, first, second head. The utility model discloses a filter structural modularized design, on -the -spot installation is convenient more, swift, has realized backwash siphon structure and modified gas distribution structure simultaneously again, at the barrel total length within range automatic acceleration backwash velocity of flow and combine the even stirring of barrel total length within range filter material to seethe, the insufficient problem of backwash that the big circulation face of comprehensively having solved horizontal filter faces. The utility model also discloses a computational method of calculating backwash water outlet geometry. The utility model has the advantages of go out water quality of water high, cut dirty can the reinforce, big, the seawater corrosion resistance of flow area and gas distribution and backwash evenly, easy operation, area be few, satisfy the demand of extensive seawater desalination actual production, be particularly useful for large -scale seawater desalination project, have apparent economic benefits and social.
Description
Technical field
This utility model relates to a kind of desalinization horizontal filter device, belongs to mechanical field.
Background technology
Along with increasing and the raising of quality of life of the size of population, the demand of freshwater resources is increased by the mankind day by day, and
Freshwater resources lack and day by day exhausted because polluting, and face dual-pressure, and sight is transferred to wide ocean by the mankind, carries out sea water
Desalination.
Filter is one of important component part of seawater desalinization pretreatment.At present, field of seawater desalination typical case it is applied to
Filter be typically all vertical filter, it is little that vertical filter treating capacity is little, surface-type filters retaining power, it is impossible to meets big
Medium-sized desalinization treating capacity is big, water outlet quality high and the industrial requirement such as good economy performance.Seawater desalting plant with 100,000 ton day
As a example by, if usedThe vertical sand filter of 3500mm needs about 140；If usedThe Horizontal-type filtering of 3500 × 12000mm
Device, it is only necessary to 35.Comparatively speaking, horizontal filter, compared with the equal vertical filter processing flow, has number of devices
Less, the advantage such as floor space little, small investment, convenient management.
Before and after filter can make filter because of the mechanical admixture retaining excess, pressure reduction increases, when pressure reduction is more than 0.05
～during 0.07Mpa, it usually needs it is carried out by the method for backwash.Utilize reverse water inlet, make sand filter blanket pine in filter
Dynamic, the trapped substance adhering to filter material surface can be made to peel off and taken away by recoil current, being conducive to sediment, the suspension getting rid of in filtering layer
Thing etc., and prevent filtrate from hardening so that it is it is thus capable of sufficiently recovering retaining power, thus reaches the purpose cleaned.Horizontal filter needs anti-
Wash water flow is big, and conventional horizontal filter designs unreasonable due to backwash gas distribution and cloth water-bound, causes backwash weak effect, it is impossible to
Adapt to long-term, the service requirement of stable yield of desalinization, and then affect the production capacity of follow-up reverse osmosis seawater desalting.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of desalinization horizontal filter device, it is possible to suitable
Join large reverse osmosis desalinization, it is ensured that the stable water supply of long-term flow efficient, big.To this end, below this utility model employing
Technical scheme:
A kind of desalinization horizontal filter device, including horizontal cylinder, the first end socket of described cylinder both sides, the
Two end sockets；It is characterized in that:
Arranging backwash drip chamber in described first end socket, described upper backwash drip chamber has sidewall and diapire, the first envelope
Middle part or the middle part place on the upper side of head arranges the current port of described upper backwash drip chamber；
Backwash rhone, filter material layer, lower turnover hydroecium is had the most successively in described cylinder；
Top in described cylinder arranges described backwash rhone, and backwash rhone suspension bracket is arranged on described cylinder；Institute
State the length of backwash rhone and quite and there is spilling water sidewall with described barrel lenght, one end of described backwash rhone and described
Upper backwash drip chamber sidewall is connected, and described upper backwash drip chamber sidewall arranges connection notch；
From the current port of described lower turnover hydroecium to lower turnover hydroecium, again to described backwash rhone, again to described
Backwash drip chamber, again to described upper backwash drip chamber current port formed syphon structure；
The bottom of described cylinder arranges described lower turnover hydroecium, and described lower turnover hydroecium is provided above porous plate, described many
Arranging water cap on orifice plate, described filter material layer is laid on described porous plate, divides along its length in described lower turnover hydroecium
Cloth is provided with gas distribution pipe, and described gas distribution pipe length is suitable with described barrel lenght, and the gas outlet of described gas distribution pipe arranges list of giving vent to anger
To valve, gas distribution pipe suspension bracket is connected on described porous plate；
Described first end socket arranges the current port of described lower turnover hydroecium, and described gas distribution pipe is worn at described first end socket
Entering in described lower turnover hydroecium, the current passage port of described upper backwash drip chamber is above the current port of lower turnover hydroecium；
Passing in and out hydroecium under described second end socket correspondence and arrange the first secondary manhole, described second end socket is corresponding described in the middle
Cylinder inner filtration space on porous plate is additionally provided with owner hole；
The top of described cylinder is provided with air vent, the second secondary manhole, and the top of described cylinder is additionally provided with sight glass, hangs
Ear；The bottom of described cylinder is provided with to meet an urgent need unloads sand mouth, bottom blow-down mouth, bearing.
Using on the basis of technique scheme, this utility model also can use technical scheme further below:
The bottom of described backwash rhone is arranged higher than the highest point of described upper backwash drip chamber current port, described upper backwash
Hydroecium sidewall and diapire are entered with described cylinder and described first end socket, described backwash rhone by steel line with rubber or fiberglass
Row connects, water inlet when having collectively constituted backwash water flowing out structure and can be used for filtering operation.
Described gas distribution pipe is suspended on described porous plate by described gas distribution pipe suspension bracket, and described gas distribution pipe is installed equably
Multiple described check valves, described unidirectional the giving vent to anger of check valve and water does not backflows, be used for ensureing when normal filtration is run, described
Gas distribution pipe in may not flow into water, when gas distribution owing to not having water remaining in described gas distribution pipe, gas can uniformly reach each
Individual described check valve, the gas pressure of each described check valve gas outlet is close, makes gas evenly into described water
Cap, the filter material layer described in arrival.
According to Bernoulli equation: p+1/2 ρ v2+ ρ gh=C, and combine siphonic effect and determine described upper backwash drip chamber current
(pressure of certain point during p is fluid in formula, v is the flow velocity of this point of fluid, and ρ is fluid density, and g is gravity for the physical dimension of port
Acceleration, h is this place height, and C is a constant；Can also express and become p1+1/2ρv1 2+ρgh1=p2+1/2ρv2 2+ρ
gh2).
Described backwash rhone is arranged in described cylinder upper position, can be one or symmetrical two.
Described cylinder uses carbon steel or fiberglass, and described carbon steel cylinder lining 3～5mm thickness natural rubber, outside cylinder
Brush antirust paint, is used for ensureing device seawater corrosion resistance, and glass steel material need not line with rubber and is coated with antirust paint.
Described filter material layer can be made up of the quartz sand of four kinds of different-grain diameter sizes, and particle diameter becomes big successively from top to bottom,
For supporting the fine sand grain on upper strata, it is ensured that fine sand grain gives full play to the effect filtered, and will not leak in water outlet water, it is ensured that
Effluent quality.
Owing to using the technical solution of the utility model, this utility model is started with from easy for installation and backwash structure, for
Horizontal filter device provides rational structure；Not only achieving filtration device structure modularized design, in-site installation is more square
Just, fast, achieve again the gas distribution structure of backwash syphon structure and improvement simultaneously, automatically speed up anti-in cylinder length range
Wash speed and in combining cylinder length range filtrate uniform stirring seethe, solve the books circulation face institute face of horizontal filter comprehensively
The insufficient problem of backwash faced, it is ensured that after prolonged application, defecator remains to keep original design yield, it is ensured that long-term
Efficiently, the stable water supply of big flow.This utility model has effluent quality height, retaining power is strong, circulation area is big, sea water resistance is rotten
Erosion and gas distribution, with backwash is uniform, simple to operate, floor space is few and the advantage such as good economy performance, meet extensive sea water light
Change the demand of actual production, be particularly suited for big-and-middle-sized desalinization project, there is significant economic benefit and social benefit.
Accompanying drawing explanation
The biggest flow horizontal filter device embodiment front view of desalinization that Fig. 1 provides for this utility model.
Fig. 2 is the top view of embodiment illustrated in fig. 1.
Fig. 3 is the sectional view of embodiment illustrated in fig. 1.
Fig. 4 is the schematic diagram of embodiment illustrated in fig. 1 gas distribution pipe.
Fig. 5 is this utility model backwash structural representation.
Fig. 6 is the schematic diagram of backwashing system work.
Reference: 1. cylinder；2. front head；3. rear head；4. air vent；51. first secondary manholes；51.
Second mate's manhole；6. go up backwash water-supplying chamber current port；7. go up backwash water-supplying chamber；8. backwash rhone；9. backwash rhone
Suspension bracket；10. filter material layer；11. owner holes；12. porous plates；13. water caps；14. gas distribution pipes；15. gas distribution pipe suspension brackets；16.
Rforated plate bracing plate；17. times turnover hydroecium current ports；18. check valves；19. bearings；20. hangers；21. sight glass；
22. meet an urgent need unloads sand mouth；23. times turnover hydroeciums；24. bottom blow-down mouths；25. channel-section steels；26. angle steel；27. U-bolts.
Detailed description of the invention
Below in conjunction with accompanying drawing, to desalinization provided by the utility model flow horizontal filter device the most greatly
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, and
It is not all of embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained on the premise of Dong, broadly falls into the scope of this utility model protection.
Referring to the drawings.The desalinization horizontal filter device that this utility model provides, including horizontal cylinder 1, institute
State first end socket the 2, second end socket 3 of cylinder both sides.
Arranging backwash drip chamber 7 in described first end socket 2, described upper backwash drip chamber has sidewall 71 and diapire 72,
Upper backwash drip chamber surrounds with the first end socket 2 and sidewall 71 and diapire 72, and middle part or the middle part place on the upper side of the first end socket 2 arranges institute
State the current port 6 of backwash drip chamber；Sidewall 71 and diapire 72 can be prefabricated on the first end socket 2, and conveniently install, sidewall 71
Can be in the boundary of the first end socket, when assembling, sidewall 71 is also connected with cylinder.
Backwash rhone 8, filter material layer 10, lower turnover hydroecium 23 is had the most successively in described cylinder.
Top in described cylinder arranges described backwash rhone 8, and backwash rhone suspension bracket 9 is arranged on described cylinder 1,
Described backwash rhone 8 is fixed on the upper position in described cylinder 1 by described backwash rhone suspension bracket 9；Described
The length of the length of backwash rhone 8 and described cylinder 1 quite and has a spilling water sidewall, one end of described backwash rhone 8 and
Described upper backwash drip chamber sidewall 71 is connected, and described upper backwash drip chamber sidewall 71 arranges connection notch 70.Described backwash is arranged
The other end of tank 8 can be fixed on position on the upper side in the middle part of the second described end socket 3.
The bottom of described cylinder 1 arranges described lower turnover hydroecium 23, and described lower turnover hydroecium 12 is provided above porous plate 12,
Arranging water cap 13 on described porous plate 12, described filter material layer 10 is laid on described porous plate 12, at described lower turnover hydroecium 23
In along its length distribution be provided with gas distribution pipe 14, described gas distribution pipe length and described cylinder phase length ought, described gas distribution pipe
The gas outlet of 14 arranges outgassing nonreturn valve 18, and gas distribution pipe suspension bracket 15 is connected on described porous plate 12.
Described first end socket 2 arranges the current port 17 of described lower turnover hydroecium, and described gas distribution pipe 14 is from described first envelope
Penetrating in described lower turnover hydroecium 23 at 2, the current port 6 of described upper backwash drip chamber is in the current of lower turnover hydroecium and leads to
The top of mouth 17.
The height of the current port 6 of described upper backwash drip chamber, less than the bottom of described backwash rhone 8, causes potential energy
Difference, from the current port 17 of described lower turnover hydroecium to lower turnover hydroecium 23, then to described backwash rhone 8, then on described
Backwash drip chamber 7, then form syphon structure to the current port 6 of described upper backwash drip chamber.When backwash, current are through described
Backwash rhone 8 in upper backwash drip chamber 7, during current port 6 described in submergence, now can produce siphonic effect, utilizing should
Effect will produce higher backwash flow velocity, and during backwash through the backwash water of filter material layer in the length range of cylinder 1, from overflowing
Water top side wall 80 flows into backwash rhone 8, and in forming cylinder, overall backwash automatically speeds up operation, in conjunction with check valve uniform air distribution
Means so that filtrate obtains full and uniform backwash, it is ensured that backwash effect, when making the horizontal filter energy restoration designing after backwash
Filter capacity and quality.
The corresponding lower turnover hydroecium 23 of described second end socket 3 arranges the first secondary manhole 51, and described second end socket 3 is the most right
The cylinder inner filtration space on described porous plate is answered to be additionally provided with owner hole 11.
The top of described cylinder 1 is provided with air vent 4, second secondary manhole 52, hanger 20, and the top of described cylinder 1 also sets
It is equipped with sight glass 21；The bottom of described cylinder 1 is provided with to meet an urgent need unloads sand mouth 22, bottom blow-down mouth 24, bearing 19.
Described 1 cylinder uses carbon steel, described cylinder lining 3～5mm thickness natural rubber, the outer brush antirust paint of cylinder, is used for
Ensure device seawater corrosion resistance.
Described backwash rhone 8 is arranged in described cylinder upper position, can be one or symmetrical two.Described
The bottom of backwash rhone 8 is higher than the highest point of described upper backwash drip chamber current port 6, described upper backwash drip chamber sidewall 71
It is made up of steel line with rubber or fiberglass with diapire 72, above-mentioned backwash drip chamber sidewall 71 and diapire 72 and described first end socket 2, institute
Cylinder 1 and the described backwash rhone 8 stated connect, entering when having collectively constituted backwash water flowing out structure and can be used for filtering operation
Water.When described device carries out filtering and runs, the water that need to filter is arranged through upper backwash from the current port of described upper backwash drip chamber
Hydroecium, connection notch, backwash rhone enter the filter space in cylinder.
The current port 6 of described upper backwash drip chamber can use pipe fitting and be fixed on the position that the middle part of the first end socket 2 is on the upper side
Putting, carry out strengthening fixing by stiffening ring 60, this pipe fitting is attached with exterior tube by flange.
This utility model is according to hydrodynamics Bernoulli equation:p+1/2 ρ v2+ ρ gh=C, and combine siphon effect
Should determine that the physical dimension of described upper backwash drip chamber current port.Two backwash rhones are assumed initially that, in conjunction with this practicality
The feature of new patent, backwash flow of inlet water is 800m3/ h, for ensureing stable operation, the drain discharge of backwash outlet pipe is with anti-
Wash the drain discharge that rhone cross section goes out and be 800m3/ h, backwash rhone discharge area 2 × 0.3016m2, backwash rhone
Muzzle velocity 0.3684m/s, potential difference 0.681mm, potential energy difference 6673.8kg/m s2, according to Bernoulli equation: p+1/2 ρ v2+ρgh
=C, backwash drainpipe outlet speed v=(13.3476+0.1357)0.5=3.672 m/s, in conjunction with flow 800m3/ h, Ke Yiji
The area calculating the pipe fitting that current port 6 uses is 0.06052m2, then the radius of the pipe fitting that current port 6 uses is
0.1388m。
Described gas distribution pipe 14 is suspended on described porous plate 12 by described gas distribution pipe suspension bracket 15, and described gas distribution pipe 14 is equal
It is mounted with multiple described check valve 18 evenly.The most conventional distribution device uses gas distribution round in air inlet pipe.Often
The gas distribution round of rule, before equipment runs and prepares air inlet, is full of water in gas distribution pipe, the position of distance air inlet far-end is owing to having
Residual water, air inlet is extremely difficult at this, causes the internal backwash gas distribution of filter the most uneven, directly influences backwash effect.This reality
Use check valve 18 to give vent to anger with novel gas distribution pipe, unidirectional the giving vent to anger of check valve 18 and water does not backflows, it is ensured that run in normal filtration
Time, may not flow into water in described gas distribution pipe 14, when gas distribution owing to not having water remaining in described gas distribution pipe 14, gas can be all
Even reaching each described check valve 18, the gas pressure of each described check valve gas outlet is close, makes gas equably
Water cap 13 described in entrance, through described filter material layer 10.
Described gas distribution pipe 14 is suspended on described porous plate by described gas distribution pipe suspension bracket, on its length direction from
The first described end socket 2 is up to the second described end socket 3, and described gas distribution pipe is consisted of Flange joint many segment pipes,
Check valve described in arranging uniformly on it.
Described gas distribution pipe suspension bracket 15 includes the channel-section steel 25 of both sides, the angle steel 26 of bottom and U-bolt 27, the angle of bottom
The channel-section steel 25 of steel 26 and both sides, gas distribution pipe 14 is supported on the angle steel 26 of bottom, and gas distribution pipe is fixed on bottom by U-bolt 27
On angle steel 26.
The import of described gas distribution pipe 14 uses adapter, is positioned at described first end socket mid portion position on the lower side, under being in
The top of turnover hydroecium current port 17, takes over and carries out strengthening fixing on the first end socket 1 by stiffening ring 140, pass through flange
It is attached with outer tube.
Described filter material layer 10 can be made up of the quartz sand of four kinds of different-grain diameter sizes, and particle diameter becomes successively from top to bottom
Greatly, for supporting the fine sand grain on upper strata, it is ensured that fine sand grain gives full play to the effect filtered, and will not leak in water outlet water,
Ensure effluent quality.Between bottom described filter material layer top and described backwash rhone, reserved enough filtrates expand height
Degree, it is to avoid filtrate is backwashed water after expanding and washes away.
Described porous plate 12 is positioned at the position on the lower side, middle part of described horizontal filter, with described cylinder 1 and described
One end socket the 2, second end socket 3 is closely coupled, the filter material layer 10 described in support.
Described water cap 13 is arranged in the hole of described porous plate, the filtration water outlet when desalinization is filtered, cloth
Water inlet when air inlet during gas and backwash.The rforated plate bracing plate 16 of polylith is fixed on described cylinder 1 evenly distributedly,
Porous plate 12 described in support.
Described lower turnover hydroecium current port 17 uses pipe fitting, and this pipe fitting is enterprising at the first end socket 1 by stiffening ring 170
Row is strengthened fixing, and this pipe fitting is attached with outer tube by flange.
Having two symmetrical secondary manholes 52 at the top of cylinder 1, carry out strengthening fixing by stiffening ring, seam is used
Flange is attached.
Described air vent 4 is fixed on the top of cylinder 1, and is evenly distributed three, carries out adding strong by stiffening ring
Fixed, seam flange is attached.
Described hanger 20 is fixed on the top of cylinder 1, and centrosymmetry is distributed four, carries out adding strong by stiffening ring
Fixed.
Described sight glass 21 is arranged on the top of cylinder 1, and symmetrical two, carries out adding strong by stiffening ring
Fixed, seam flange is attached.
The described emergent sand mouth 22 that unloads is fixed on the bottom of cylinder 1, and symmetrical two, is strengthened by stiffening ring
Fixing, seam flange is attached, and is on a circumference with described sight glass 21.
Described owner hole 11 is positioned at the center position of described second end socket 3, carries out strengthening fixing by stiffening ring, connects
It is attached with flange at Kou.
Described secondary manhole 51 is positioned at the lower position of described second end socket 3, carries out strengthening fixing by stiffening ring, connects
It is attached with flange at Kou；
Described bearing 19 is fixed on the bottom of described cylinder 1, and is uniformly distributed three described bearings；
This utility model operational process is mainly divided backwash, operation, just the duty such as is washed:
1. the operation of horizontal filter
A., before horizontal filter puts into operation, first it is exhausted.During aerofluxus, open filter enterprising valve V1 and air bleeding valve
V5, when gas exhaust piping water outlet final vacuum is complete.
B. after aerofluxus, opening lower valve V4, simultaneously close off air bleeding valve V5, (separate unit flow is about for regulation flow of inlet water
350m3/ h), outlet pressure is about 0.25Mpa, and now filter enters pretreatment work state, opens outlet valve V7, closes lower row
Valve V4, filter can put into operation.
2. horizontal filter backwash
Horizontal filter increases along with the prolongation of the time of operation, pressure reduction.When filter differential pressure is more than 0.05-0.07MPa,
Backwash, backwash cycle is needed to be about 7 days.
A. recoil pine layer: valve V2 in unlatching, is then turned on down valve V3, opens 1 backwashing pump and controls inflow, makes filtering layer
Being loosened, the pine layer time is 5-10min.
B. soda pop clean: open air bleeding valve V5, intake valve V6, under enter valve V3(i.e. backwash water intaking valve), with 10-15L/m2·
Air inlet intensity (air pressure 1-1.5kg/cm of s2), water carries out steam-water mixing scouring, time with the flow velocity of 10-15m/h simultaneously
For about 10min.
C. big bounce is washed: 2 backwashing pumps simultaneously, makes backwash flow big as far as possible, not go out quartz sand as principle, typically
Backwash intensity is 15L/m2·s.Be flushed to the transparency of Inlet and outlet water close time, backwash terminates.At the end of backwash, backwash flow
Should gradually be slowly increased and reduce, be beneficial to filtrate and be layered by particle diameter.
3. just the washing of horizontal filter
Enter valve V3, air bleeding valve V5 under closedown, open enterprising valve V1 and lower valve V4, open flocculant dosing pump, filter simultaneously
Device starts just to wash.Positive wash amount is working flow, is just washing time general 10-30min, and after just washing, filter can put into normal fortune
OK.
Table 1 horizontal filter operation sequence and valve switch location tables
Note: space represents that valve closing, √ represent that valve regulated is opened.
Claims (7)
1. a desalinization horizontal filter device, including horizontal cylinder (1), the first end socket of described cylinder both sides
(2), the second end socket (3)；It is characterized in that:
Arranging backwash drip chamber (7) in described first end socket, described upper backwash drip chamber has sidewall (71) and diapire (72),
The middle part of the first end socket or middle part place on the upper side arranges the current port (6) of backwash drip chamber；
Backwash rhone (8), filter material layer (10), lower turnover hydroecium (23) is had the most successively in described cylinder；
Top in described cylinder arranges described backwash rhone, and backwash rhone suspension bracket (9) is arranged on described cylinder；Described
The length of backwash rhone and described barrel lenght quite and have spilling water sidewall, one end of described backwash rhone and described on
Backwash drip chamber sidewall is connected, and described upper backwash drip chamber sidewall arranges connection notch (70)；
From the current port (17) of described lower turnover hydroecium to lower turnover hydroecium, then to described backwash rhone again to described upper instead
Wash drip chamber and form syphon structure to the current port of described upper backwash drip chamber again；
The bottom of described cylinder arranges described lower turnover hydroecium, and described lower turnover hydroecium is provided above porous plate (12), described many
Arranging water cap (13) on orifice plate, described filter material layer (10) is laid on described porous plate, edge in described lower turnover hydroecium (23)
The distribution of its length direction is provided with gas distribution pipe (14), and described gas distribution pipe length is suitable with described barrel lenght, described gas distribution pipe
Gas outlet arranges outgassing nonreturn valve (18), and gas distribution pipe suspension bracket (15) is connected on described porous plate (12)；
Described first end socket arranges the current port of described lower turnover hydroecium, and described gas distribution pipe penetrates institute at described first end socket
Stating in lower turnover hydroecium, the current port (6) of described upper backwash drip chamber is in the top of the current port of lower turnover hydroecium；
Passing in and out hydroecium under described second end socket correspondence and arrange the first secondary manhole (51), described second end socket is corresponding described in the middle
Cylinder inner filtration space on porous plate is additionally provided with owner hole (11)；
The top of described cylinder is provided with air vent (4), the second secondary manhole (52), and the top of described cylinder is additionally provided with sight glass
(21), hanger (20)；The bottom of described cylinder is provided with to meet an urgent need unloads sand mouth (22), bottom blow-down mouth (24), bearing (19).
A kind of desalinization horizontal filter device the most according to claim 1, it is characterised in that described backwash draining
The bottom of groove is higher than the highest point of described upper backwash drip chamber current port, and described upper backwash drip chamber sidewall and diapire pass through steel
Line with rubber processed or fiberglass are attached with described first end socket, described cylinder and described backwash rhone, have collectively constituted anti-
Water inlet when washing out water-bound and can be used for filtering operation.
A kind of desalinization horizontal filter device the most according to claim 1, it is characterised in that described gas distribution pipe leads to
Crossing described gas distribution pipe suspension bracket to be suspended on described porous plate, described gas distribution pipe is mounted with multiple described check valve equably,
Described unidirectional the giving vent to anger of check valve and water does not backflows, be used for ensureing when normal filtration is run, may not flow in described gas distribution pipe
Water, when gas distribution owing to not having water remaining in described gas distribution pipe, gas can uniformly reach each described check valve, each
The gas pressure of described check valve gas outlet is close, makes gas evenly into described water cap, the filter material layer described in arrival.
A kind of desalinization horizontal filter device the most according to claim 1 and 2, it is characterised in that according to Bernoulli Jacob
Equation: p+1/2 ρ v2+ ρ gh=C, and combine siphonic effect and determine the physical dimension of described upper backwash drip chamber current port, formula
Middle p is the pressure of certain point in fluid, and v is the flow velocity of this point of fluid, and ρ is fluid density, and g is acceleration of gravity, and h is this place
Highly, C is a constant；Can also express and become p1+1/2ρv1 2+ρgh1=p2+1/2ρv2 2+ρgh2。
A kind of desalinization horizontal filter device the most according to claim 1 and 2, it is characterised in that described backwash is arranged
Tank is arranged in described cylinder upper position, can be one or symmetrical two.
A kind of desalinization horizontal filter device the most according to claim 1, it is characterised in that described cylinder uses
Carbon steel or fiberglass, described carbon steel cylinder needs liner 3～5mm thickness natural rubber, the outer brush antirust paint of cylinder, is used for ensureing
Device is resistance to crosses stream sea water and the corrosion of marine environment.
A kind of desalinization horizontal filter device the most according to claim 1, it is characterised in that described porous plate
It is positioned at the position on the lower side, middle part of described cylinder, closely coupled with described cylinder, the first described end socket, the second end socket, support institute
The filter material layer stated；Described water cap is arranged in the hole of described porous plate, the filtration water outlet when desalinization is filtered, cloth
Water inlet when air inlet during gas and backwash, polylith rforated plate bracing plate is fixed on described cylinder evenly distributedly, supports institute
The porous plate stated.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289060A (en) * | 2015-11-04 | 2016-02-03 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal type filter device for sea water desalination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289060A (en) * | 2015-11-04 | 2016-02-03 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal type filter device for sea water desalination |
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