CN201744202U - Water intake apparatus for sedimentation tank - Google Patents
Water intake apparatus for sedimentation tank Download PDFInfo
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- CN201744202U CN201744202U CN2010201117895U CN201020111789U CN201744202U CN 201744202 U CN201744202 U CN 201744202U CN 2010201117895 U CN2010201117895 U CN 2010201117895U CN 201020111789 U CN201020111789 U CN 201020111789U CN 201744202 U CN201744202 U CN 201744202U
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- water inflow
- sedimentation basin
- sedimentation tank
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Abstract
The utility model relates to the improvement of water intake of a sedimentation tank in water treatment engineering, and is characterized in that a water outlet is externally provided with an arc-shaped flow guide plate water inflow energy dissipation device with the width larger than or equal to 30cm, the water inflow flows on the surface of an arc-shaped flow guide plate, through the friction between the water inflow and the surface, not only wall-adhesion effect can be generated to reduce the water inflow velocity, but also the direction of the water flow can be changed after passing along the arc-shaped plate, so as to reduce the water inflow velocity under the combined action of the two effects to enable the water inflow to enter the sedimentation tank smoothly, thus reducing and/or eliminating interference and damage to a water layer in the sedimentation tank; and rising velocity at all parts in the sedimentation tank is basically the same to ensure the sedimentation tank to meet ideal sedimentation requirements as far as possible, thereby improving the sedimentation effect and efficiency. A flow guide and limit plate is arranged at the front end or at least above the arc-shaped flow guide plate to guide and limit all the water inflow to flow along the arc-shaped flow guide plate, thus further enhancing the energy dissipation effect. By comparison of actual contrast tests, as the water inflow outlet is additionally provided with the arc-shaped flow guide plate, the water inflow velocity can be reduced to 0.01 m/s from 0.4 m/s.
Description
Technical field
Utility model is about the improvement to engineering of water treatment sedimentation basin water intake mode, relates in particular to a kind of water inlet steadily, can not cause pool bottom sludge layer and mud-water separation layer are disturbed, and can improve the sedimentation basin water feed apparatus of deposition efficiency.
Background technology
Precipitation process is a very critical process section in the waste water treatment process, and its sedimentation effect directly influences water treatment final effect and efficient, sedimentation basin, and the static relatively of water layer is the prerequisite of guaranteeing efficient precipitation.Yet objective phenomenon in actual engineering, often precipitation process effect and efficient always are lower than design load, and promptly actual motion has greater difference with theoretical design.The applicant is through studying discovery for a long period of time, and wherein the unstable fluctuation of water inlet causes pool bottom sludge layer and mud-water separation layer are disturbed, and is the key factor that influences sedimentation effect and efficient.Reason may be that into the water flow velocity can fail to obtain effective energy dissipating, the kinetic energy that the flow velocity that causes intaking faster produces enters sedimentation basin and stirs settled mud, and to the interference of mud-water separation layer, destroyed the required ideal conditions of precipitation, so can not reach the requirement of design precipitation.For stablizing water inlet and slowing down into water flow velocity, reduce harmful effect to precipitation, people taked multiple measure, for example:
Chinese patent CN1907532 be disclosed in body lower end, pond be provided with the perforation ring sparger and in connect the cross sparge pipe.This water feed apparatus can only be used for the midget plant sedimentation basin, and is then inapplicable for the large-scale structures sedimentation basin of more than ten meter of diameter or tens meters; Secondly, perforation water distribution water inlet only is to play the water inlet effect that disperses, and water inlet kinetic energy is not eliminated, and each apopore water outlet still has suitable impulsive force, still can not reach the into steady fluidised form of water.
Chinese patent CN1803650 discloses the skirtboard that a space is arranged between intake tunnel setting of enterprising water sedimentation pond and pool wall, and is provided with the unhurried current plate that can reduce the waste water flow velocity below the annular groove water distributing pore.Though this can eliminate the kinetic energy of partly intaking, reduce the water inlet flow velocity, but from top to bottom gravity is dirty for this water inlet water distribution manner, not only reverse with precipitation rising water outlet, make the sedimentation basin border lose the precipitation function, cause reducing of the effective desilting area of sedimentation basin, and still can produce interference, therefore thoroughly solve the technical problem that water inlet influences precipitation settled sludge blanket and mud-water separation layer.
Above-mentioned deficiency still has is worth improved place.
The utility model content
The utility model purpose is to overcome the deficiency of above-mentioned prior art, provides a kind of and can effectively reduce water inlet kinetic energy, makes that into water is steady, can not produce pool bottom sludge layer and mud-water separation layer are disturbed deposition efficiency height, and sedimentation basin water feed apparatus simple in structure.
The utility model purpose realizes, the main improvement is to have additional arc deflector in sedimentation basin water inlet outlet, making into, water flows into sedimentation basin according to the arc deflector surface, produce wall attachment effect reduction flow velocity by flowing through curved surfaces, and change through the arc water (flow) direction, both have reduced flow velocity at acting in conjunction, eliminated water inlet kinetic energy, making into, water enters sedimentation basin with relative plateau, do not disturb pool bottom sludge layer and mud-water separation layer water layer, thereby overcome above-mentioned the deficiencies in the prior art, realize the utility model purpose.Specifically, utility model sedimentation basin water feed apparatus comprises the water entering energy dissipation device, it is characterized in that the water entering energy dissipation device is the arc deflector of the outer width 〉=30cm of delivery port.
Arc deflector, main effect make into that water flows according to curved surfaces, mainly reduce flow velocity by producing the wall attachment effect energy dissipating, make that into water is steady, reduce to guarantee high deposition efficiency to stablizing the interference of mud layer and water layer in the sedimentation basin.Arc deflector width 〉=30cm, definite for testing, if width is too small, then can be too short because of flowing through arc length, it is less to produce wall attachment effect, and water entering energy dissipation is not obvious, also just loses the practical significance that increases the arc deflector energy dissipating.Arc deflector is looked into water diversion mode difference, can be the arc of a ripple, also can be the arc of a plurality of ripples, wherein is preferably water inlet end and is the arc that makes progress for first section, and effect of energy dissipation is more obvious.Utility model is a kind of to be preferably the circular arc deflector that adopts 45 °≤segment angle≤90 °, and not only its attached wall effect of energy dissipation is better, and can effectively dwindle deflector and account for widely, reduces the influence to precipitation.If circular arc＞90 ° occur being bent downwardly, can not produce wall attachment effect substantially, therefore there is not practical significance, reverse side can influence desilting area because of existing to separate.
For the water inlet of operative constraint more makes it all by the arc deflector energy dissipating, a kind of better is to set up at least to draw current limiting plate above arc deflector front end or deflector, and guiding, constraint are intake all mobile according to arc deflector.The said current limiting plate that draws can be a phase partition up and down, also can be the flow-guiding channel of similar rectangle window opening structure, or single upper limit plate etc., so long as have guiding, constraint water inlet, it all can be employed according to arc deflector is mobile.
Utility model sedimentation basin water feed apparatus, with respect to prior art, owing to set up arc deflector with energy dissipating effect in sedimentation basin water inlet outlet, making into, water flows through according to water conservancy diversion arc plate surface, reach and surperficial friction by flowing through the surface, not only produce wall attachment effect and reduce the energy dissipating of water inlet flow velocity, and change through the arc water (flow) direction, both actings in conjunction have reduced the water inlet flow velocity, make into that water steadily enters sedimentation basin, thereby reduce and/or eliminated the sedimentation basin inner aqueous layer, hindering and damaging of mud layer guaranteed that effectively upflow velocity is basic identical in the sedimentation basin everywhere, guarantee that sedimentation basin is in the requirement of desirable precipitation as far as possible, thereby improved sedimentation effect and efficient.45 °≤segment angle≤90 ° circular arc deflector accounts for wide for a short time, does not influence substantially and reduces desilting area for the engineering sedimentation basin.At the arc deflector front end, or current limiting plate is drawn in the top setting at least, and water inlet is all flowed by arc deflector under its guiding, constraint, has strengthened energy dissipating, deceleration effect especially.In addition, continuous rectangular arc deflector also makes by the porous water inlet, becomes the face water inlet, also helps eliminating water inlet kinetic energy.Through actual contrast test relatively, the water inlet outlet increases arc deflector, and can making into, the water flow velocity drops to 0.01m/s by 0.4m/s.
Below in conjunction with two exemplary embodiments; utility model essence is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the total technical scheme of utility model is limited; some are In the view of the technical staff; the unsubstantiality that does not depart from the utility model design increases and/or change; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.
Description of drawings
Fig. 1 is embodiment 1 sedimentation basin and water feed apparatus cross section structure schematic diagram.
Fig. 2 is Fig. 1 plan structure schematic diagram.
Fig. 3 is a kind of arc guiding device of utility model structural representation.
Fig. 4 is the another kind of arc guiding device of a utility model structural representation.
The specific embodiment
Embodiment 1: referring to Fig. 1-3, and the sedimentation basin water feed apparatus, rectangle sedimentation basin 10 needs precipitation water from top to bottom to be divided into top clear water zone 8, middle part mud-water separation district 7 and bottom precipitation mud layer 6, top, sedimentation basin top internal perisporium face has water outlet overflow weir notch 9.Sedimentation basin one side has the alternate water inlet 5 with plurality of parallel of water inlet manifold 4 outward, forms multiple spot.The water inlet outlet has alternate current limiting plate 1 and 2 of drawing up and down in the sedimentation basin, is connected with the upwards circular arc deflector 3 (50cm of projection width) at 90 ° of angles with drawing current limiting plate 2 down, and arc deflector axial length and sedimentation basin influent side are wide or roughly wide.
The effect comparison: same sedimentation basin, same water inlet flow velocity, arc deflector is not installed, when water inlet arm flow velocity was 0.5m/s, the flow velocity that enters sedimentation basin was 0.4m/s; After this arc deflector was installed, the flow velocity that the arc deflector rear end enters sedimentation basin only was 0.01m/s.
Embodiment 2: referring to Fig. 4, as embodiment 1, the arc guiding device forms flow-guiding channel by last lower clapboard 11,12, is made up of waveform deflector 13 in the passage.
To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; those of ordinary skills will recognize also can adopt additive method; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; the position that for example intakes is provided with variation; the arc deflector form; radian and wide variety are drawn current limiting plate and are changed, or the like unsubstantiality change; can be employed equally; can both realize and basic identical function of the foregoing description and effect, launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Claims (6)
1. the sedimentation basin water feed apparatus comprises the water entering energy dissipation device, it is characterized in that the water entering energy dissipation device is the arc deflector of the outer width 〉=30cm of delivery port.
2. according to the described sedimentation basin water feed apparatus of claim 1, it is characterized in that the arc deflector water inlet end is the arc that makes progress for first section.
3. according to the described sedimentation basin water feed apparatus of claim 2, it is characterized in that arc deflector is the circular arc deflector of 45 °≤segment angle≤90 °.
4. according to claim 1,2 or 3 described sedimentation basin water feed apparatus, it is characterized in that there is the current limiting plate of drawing arc deflector front end or deflector top.
5. according to claim 1,2 or 3 described sedimentation basin water feed apparatus, it is characterized in that the water inlet of arc deflector axial length and sedimentation basin is roughly wide.
6. according to the described sedimentation basin water feed apparatus of claim 4, it is characterized in that the water inlet of arc deflector axial length and sedimentation basin is roughly wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201117895U CN201744202U (en) | 2010-02-04 | 2010-02-04 | Water intake apparatus for sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201117895U CN201744202U (en) | 2010-02-04 | 2010-02-04 | Water intake apparatus for sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201744202U true CN201744202U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201117895U Expired - Lifetime CN201744202U (en) | 2010-02-04 | 2010-02-04 | Water intake apparatus for sedimentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201744202U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416978A (en) * | 2017-09-22 | 2017-12-01 | 深圳市澳洁源环保科技有限公司 | Sewage-treatment plant |
| CN110206101A (en) * | 2019-04-19 | 2019-09-06 | 浙江水利水电学院 | A kind of water pipe guiding device and its installation method for rural potable water water tank |
-
2010
- 2010-02-04 CN CN2010201117895U patent/CN201744202U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416978A (en) * | 2017-09-22 | 2017-12-01 | 深圳市澳洁源环保科技有限公司 | Sewage-treatment plant |
| CN110206101A (en) * | 2019-04-19 | 2019-09-06 | 浙江水利水电学院 | A kind of water pipe guiding device and its installation method for rural potable water water tank |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |