CN105797438B - A kind of control method of inclined-tube sedimentation tank water distribution fairing - Google Patents
A kind of control method of inclined-tube sedimentation tank water distribution fairing Download PDFInfo
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- CN105797438B CN105797438B CN201610049479.7A CN201610049479A CN105797438B CN 105797438 B CN105797438 B CN 105797438B CN 201610049479 A CN201610049479 A CN 201610049479A CN 105797438 B CN105797438 B CN 105797438B
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- deflector
- window
- flow
- fairing
- sedimentation tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2416—Liquid distributors with a plurality of feed points
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/302—Active control mechanisms with external energy, e.g. with solenoid valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of control methods of inclined-tube sedimentation tank water distribution fairing, the fairing includes several pieces of deflectors, every piece of deflector is divide into upper part and lower part, top half is the vertical baffle that adjustable diversion window is arranged, lower half portion is inclination deflector, feedback device is set below the deflector, the feedback device measures the flow between each deflector in gap using several holes probes, and the windowing direction of the adjustable diversion window is adjusted in the flow measured according to feedback device.Under conditions of the compound action of difference diversion window of the invention can guarantee normal flocculation, non-uniform phenomenon caused by the factors such as density current, turbulent flow is utmostly reduced, water distributing area dischargeable capacity is made full use of to carry out flocculation, enhances flocculating effect.By cutting down non-uniform flow phenomenon, it can effectively reduce the maximum flow rate into settling zone, to realize the smooth transition of flocculation to precipitating, reduce settling zone water inlet to the perturbation action of suspension body refuse.
Description
It is on March 4th, 2015 that the present invention, which is the applying date, application No. is 2015100965343, it is entitled " a kind of tiltedly
The divisional application of pipe sedimentation basin water distribution fairing and its control method ".
Technical field
The present invention relates to a kind of control method of inclined-tube sedimentation tank water distribution fairing, this method is mainly used for controlling inclined tube
Fluidised form uniformity in sedimentation basin water distributing area is weakened by reducing the Froude number of water distributing area fluidised form since water distribution is unevenly made
At bed mud turn over phenomenon, improve effluent quality.
Background technique
Inclined-tube sedimentation tank is one of most common processing structures in water treatment technology, is remarkably improved deposition efficiency, section
About occupied area.Many water treatment buildings, such as potassium permanganate composites etc. are all using inclined-tube sedimentation tank as prototype development
Novel sedimentation basin.Ideal inclined-tube sedimentation tank deposition efficiency should be determined mainly by particle settling velocity and upflow velocity.But inclined tube is heavy
Shallow lake pond mud-water separating area is connected with water inlet, it is easy to be influenced by lateral intake flow velocity.When lateral flow velocity very little, make fluidised form
In laminar condition, then the wadding body of free settling is influenced smaller.But when lateral flow velocity since the influence of non-uniform flow causes portion
Subregion flow velocity is excessive, then can improve the Reynolds number of the regional fluid, generates local turbulent.Turbulent flow will affect the wadding of free settling
Body, in addition destroy as net flutter volume sweep group caused by phenomenon sedimentation wadding body, thus cause the small wadding body that should be settled but with
Ascending current floats, and influences mud-water separation effect, settling zone bed mud is caused to turn over, and reduces deposition efficiency and effluent quality.When into
When water flow is close to design discharge, it is easier to this situation occur, to influence the efficiency of actual of inclined-tube sedimentation tank.Therefore, exist
It in the case that flow of inlet water is certain, should guarantee that as far as possible fluidised form is uniform, reduce the flow velocity variance for same section of intaking.But due to speed
The influence of the factors such as difference, the temperature difference and density contrast, when actual motion, are difficult to accomplish that fluidised form is uniform.This non-uniform fluidised form is
One of the main reason for causing inclined-tube sedimentation tank fluctuation of service.
To solve this problem, the prior art is generally concerned with influence of the oblique barricade of water distributing area end to water distribution uniformity, leads to
The angle for changing oblique barricade, length even curvature are crossed, water distribution uniformity is analyzed.But the prior art have ignored water distributing area front end by
The disorder phenomenon caused by water inlet Froude number is higher.Find the design of water distributing area front end for even water distribution by analogue simulation
Property play the role of it is vital, but merely by water distributing area design optimization there are bottleneck, water distribution uniformity reaches a certain
It is more difficult after extreme value to continue to lift up.The difficult point for further promoting water distribution uniformity is to be directed to the flow conditions such as different flow, water temperature, into
The corresponding adjustment of row.Fixed water distributing area is difficult to realize be adjusted different condition, this be also existing pipe chute deposition technique still
Unsolved key problem in technology point.
In addition, the process of inclined-tube sedimentation tank water distribution is also a part of flocculation.Inclined-tube sedimentation tank is at present in order to save
Occupied area, mechanical flocculation basin of usually arranging in pairs or groups.The G value difference opposite sex is very big inside mechanical flocculation basin, is much easily stirred compared with big flocculating body
Paddle is broken into small wadding body.These small wadding bodies can be assembled again after entering inclined-tube sedimentation tank water distributing area, to complete mud in settling zone
Water separation.Therefore the design of inclined-tube sedimentation tank water distributing area is other than considering water distribution uniformity, it should also be taken into account that the effect of flocculation
Fruit.Traditional inclined-tube sedimentation tank water distributing area does not have dedicated flocculation region substantially, is unfavorable for the aggregation again of broken wadding body.It makes
The reason of at this factor first is that the inclined tube of inclined-tube sedimentation tank occupies a large amount of areas, overhaul of the equipments hole is usually taken into account in water distributing area
Flocculation measure can not be arranged using the region in function.The flocculation performance of water distributing area how is given full play to, and does not influence tube settling
Pond general function is that pipe chute deposition technique further develops faced new problem.
Inclined-tube sedimentation tank internal flow state control means fail effectively to be solved always, this is also inclined-tube sedimentation tank operation effect
The frequent unstable technical bottleneck of fruit.Therefore, the present invention from inclined-tube sedimentation tank origin or beginning water distributing area as breach, by exclusive
Water distribution rectifies control method, realizes the Automatic Optimal to inclined-tube sedimentation tank internal flow state, and is the system of related water distribution fairing
Offer theoretical foundation is provided.
Summary of the invention
It is an object of the present invention to provide a kind of inclined-tube sedimentation tank water distribution fairings, and uniform disposition can be discharged by real-time monitoring
The adaptable water distribution rectification scheme of condition selection, to promote inclined-tube sedimentation tank water distribution uniformity, enhancing wadding body re-unites effect, mentions
Rise sedimentation effect and effluent quality.
To achieve the goals above, the technical scheme is that a kind of inclined-tube sedimentation tank water distribution fairing, described whole
Flowing device includes several pieces of deflectors, and every piece of deflector is divide into upper part and lower part, and top half is hanging down for the adjustable diversion window of setting
Straight guide plate, lower half portion are inclination deflector, feedback device are arranged below the deflector, the feedback device utilizes several
Holes probe measures the flow between each deflector in gap, and the flow measured according to feedback device adjustable is led to described
The windowing direction of stream window is adjusted.N row adjustable diversion window is set on the vertical baffle, and the k row of middle and upper part is adjustable to lead
Stream window is fast recovery rectifier window, is opened a window to same direction, and other rows are to rectify window at a slow speed, and the direction that opens a window between adjacent rows is staggeredly set
It sets.Preferred embodiment in accordance with the present invention, several pieces of deflectors are fixed in inclined-tube sedimentation tank by telescopic device, described
Telescopic device includes the glide base being fixed in inclined-tube sedimentation tank, and sliding block is provided in glide base, and the deflector passes through
Telescopic rod is connect with sliding block, and the sliding block is also connect with a storage bar, and the storage bar is slided vertically under Electric Actuator control
It is dynamic.Glide base includes pedestal, is provided with slide bar, and the sliding block matched with slide bar in pedestal, sliding block be divided into sliding block and
Top shoe, sliding block are fixed on pedestal, and top shoe is connect with sliding bar, and top shoe is connect with storage bar.
Another object of the present invention is to provide a kind of control methods of inclined-tube sedimentation tank water distribution fairing, can pass through reality
When the adaptable water distribution rectification scheme of monitoring water outlet uniformity situation selection increase to promote inclined-tube sedimentation tank water distribution uniformity
Strong wadding body re-unites effect, promotes sedimentation effect and effluent quality.
To achieve the goals above, the technical solution of the present invention is as follows: a kind of control of inclined-tube sedimentation tank water distribution fairing
Method, it is characterised in that the fairing includes several pieces of deflectors, and every piece of deflector is divide into upper part and lower part, top half
For the vertical baffle that adjustable diversion window is arranged, lower half portion is inclination deflector, and feedback device is arranged below the deflector,
The feedback device measures the flow between each deflector in gap using several holes probes, is surveyed according to feedback device
The windowing direction of the adjustable diversion window is adjusted in the flow obtained.Several rows adjustable water conservancy diversion is set on the vertical baffle
Window, diversion window that the part of middle and upper part is adjustable are fast recovery rectifier window, are opened a window to same direction, other rows are to rectify window at a slow speed, phase
Windowing direction is staggered between adjacent rows, if the flow that feedback device measures between the deflector of left side in gap is less than right side water conservancy diversion
Flow between plate in gap then controls the fast recovery rectifier window and opens a window to the left, and vice versa.
The combination opening ways of diversion window of the invention are to be imitated according to the monitoring feedback device of fairing end to rectification
The real-time analysis of fruit, conducted signal to diversion window Electric Actuator, to optimize the combination of diversion window.This control method
It can constantly adapt to change due to seasonal variations, water source change of properties bring inclined-tube sedimentation tank internal flow state.
Detailed description of the invention
Fig. 1 is fairing master drawing.
Fig. 2 is rectification schematic diagram.
Fig. 3 is diversion window layout drawing.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
A kind of water distribution for inclined-tube sedimentation tank of the present invention rectifies control method, it mainly includes having flocculation synergistic effect
Fairing, as shown in Figure 1, the fairing includes deflector 1, the deflector is divide into upper part and lower part, the upper half
It is divided into vertical baffle, lower half portion is to tilt deflector, and the angle of inclination deflector and horizontal plane is between 60 to 90 °.
Several pieces of deflectors 1 are arranged in the fairing, and inclined-tube sedimentation tank water distributing area end is provided with oblique barricade, several pieces of water conservancy diversion
Plate is fixed in inclined-tube sedimentation tank by telescopic device, and the oblique barricade distance apart from water distributing area end is remoter, then under deflector
The angle of half part and horizontal plane is bigger.Deflector is divide into upper part and lower part.Deflector top half is vertical baffle, vertically
The diversion window 8 in several adjustable directions is set on deflector.Diversion window uses Electronic control, by adjusting open degree, keeps not
It is balanced with fluidised form between deflector, while promoting the flocculating effect of water distributing area, make up that wadding body in mechanical flocculation process is broken and short stream
Effect.
Deflector lower half portion is inclination deflector, is at an angle to the horizontal surface and is obliquely installed, four pieces of deflector (quantity
Changeable) it is gradually increased with the angle of horizontal plane by 60 ° to 90 °.Lower half portion deflector mainly controls the stream of each gap water flow
To making full use of inclined-tube sedimentation tank water distributing area lower space, avoid influence of the non-uniform flow to settling zone.
Telescopic rod 3 connects deflector 1, can control the spacing of deflector 1 by adjusting telescopic rod 3.
It stores bar 4 and telescopic rod 3 is driven by glide base 2, controlled and moved up and down by Electric Actuator 5, play transmission and make
With, and ruggedized construction can be added.
The effect of Electric Actuator 5 is to control the flexible of telescopic rod 3 by the transmission of storage bar 4 etc., while control is led
Flow the combination opening ways of window 8.There is Electric Actuator self-locking function to prevent 3 maloperation of telescopic rod.
Flusher 6 is located at 1 side of deflector, periodically can rinse deflector by high pressure water, avoid impurity on deflector
Deposition.Flush switch uses solenoid valve control, using lateral flushing water, avoids disturbance settling zone.
Feedback device 7 is located at 1 lower section of deflector, is surveyed using several holes probes to the flow in each water conservancy diversion sheet separation
Amount, and feed back to Electric Actuator.The unlatching of diversion window can be adjusted by Electric Actuator to optimize tune to fairing
It is whole, fairing manually can also be adjusted according to feedback information.According to feedback system in device to the real-time of the uneven situation of water outlet
Monitoring is judged uneven situation automatically by certain algorithm and is controlled diversion window combination, promotes water distribution uniformity.
Diversion window uses Electronic control, altogether three kinds of modes of setting, respectively the windowing of 45 ° of left side, the windowing of 45 ° of right side and intermediate pass window.Its
Middle left side indicates that, close to oblique barricade direction, right side is indicated far from oblique barricade direction.The spacing of different deflectors preferably with diversion window
Equal length.When the equidirectional 45 ° of windowings of same row, it can be ensured that most fluids are guided to adjacent column downlink by diversion window, on a small quantity
Not closed gap when fluid is opened by diversion window flow to same column downlink.The setting in not closed gap can increase micro- in fluid
Small whirlpool avoids deposition phenomenon caused by obstructing completely because of diversion window to enhance flocculating effect.
According to Fig.2, m+1 deflector is arranged in the present invention, and n row diversion window is arranged on each deflector, wherein preceding k row
For fast recovery rectifier area, other rows are commutating zones at a slow speed.It is respectively V from the flow velocity flowed between two pieces of adjacent baffles1、V2、…、
Vi、…、Vm-1、Vm, m holes probe be separately positioned between two pieces of adjacent baffles, and the flow velocity measured is respectively V1’、
V2’、…、Vi’、…、Vm-1', Vm ', this rectification control method can realize real-time monitoring rectification effect, if rectification effect is deteriorated,
It is automatic to change diversion window combination by analyzing the ratio size of maximum flow rate and minimum flow velocity.Analysis and Control rule according to
Following rectification control formula carries out:
Wherein k-need to rectify number, i.e. the diversion window line number in fast recovery rectifier area in the same direction
The maximum flow rate and minimum flow velocity ratio that a-is measured
M-flow-guiding channel number, i.e. baffle quantity subtract 1.
The fast recovery rectifier area of inclined-tube sedimentation tank is 3 rows under normal conditions.The method of operation in fast recovery rectifier area should be according to rectification
The velocity flow profile situation of device origin or beginning is configured, and finally feeds back to control system pair according to the flow monitoring situation of end
Diversion window combination is adjusted.Below with reference to inclined-tube sedimentation tank under normal conditions, several frequently seen rectification operating condition is enumerated,
Monitoring feedback control system can judge automatically diversion window combining form according to following table and issue regulating command.
According to Fig.3, p column n row diversion window is set on vertical baffle.Wherein single water conservancy diversion window width is L, is highly
H.Water conservancy diversion window width L and height H can be determining according to water distributing area size and p, n value, but no more than 200mm.To guarantee commutating zone
There is certain flocculation in domain, while G value being avoided to cross havoc wadding body, diversion window use etc. point arrangement, i.e. diversion window water
Flat spacing and vertical interval are also L and H.Diversion window and the relationship of deflector are as follows:
Wherein A-vertical baffle overall width
B-vertical baffle total height
By the way that diversion window is arranged, water distributing area can be efficiently used and carry out rectification and the effect of enhanced flocculation.The cloth of diversion window
The mode of setting is arranged according to inclined-tube sedimentation tank water distributing area water flow feature, and interval setting can enhance water flow flocculating effect, is realized
Water flow passes through the mutual conduction of diversion window difference opening ways, while being equally spaced mode and adapting to water distribution in most cases
The unevenness of area's water inlet.When such as each deflector gap water flow flow rate close to 1:1:1, pass through odd-numbered line diversion window and even number
The opposite combination of row diversion window opening direction can not change each gap water flow flow rate, while increase wadding body in water flow
Collision probability, enhanced flocculation effect.
It is different from the prior art place and is:
1. existing water distributing area is uneven since the factors such as speed difference and the temperature difference influence usual water distribution, and can not be according to item around
The variation of part adjusts accordingly.It, can be to water conservancy diversion sheet separation by the way that the various combination mode of the diversion window of opening direction is adjusted
Flow is adjusted, and improves water distribution uniformity, while enhancing flocculation.
2. diversion window is divided into the row fast guiding area k and (n-k) row guiding region at a slow speed.Formula is controlled by rectification, it is automatic to divide
Analyse rectification effect and the combination of Automatic Optimal diversion window.
3. comparing existing inclined-tube sedimentation tank, the present invention is in inclined-tube sedimentation tank water distributing area front end using deflector to Inlet flow pattern
It is rectified, a water distribution originally is distinguished into several water conservancy diversion sheet separations, reduces Froude number, water allocation efficiency is improved, avoids
Short flow phenomenon improves effluent quality.End is rectified simultaneously by 60 ° to 90 ° of gradual change water conservancy diversion, diffusion effect is more preferable, guarantee into
Fluidised form is more evenly after entering settling zone.
4. water distributing area other than water distribution function, by the waterpower flocculation of deflector and electronic diversion window, can enhance brokenly
The flocculating result again of broken wadding body makes up upstream flocculation process due to short stream or broken wadding body bring adverse effect.
5. the present invention has the function of flexible storage, when maintenance, which can pack up rectifier equipment not and influence the normal of inspection manhole, to be made
With.
6. feedback device is the effective way for examining fairing effect.By installation flow probe, it can be achieved that rectification
The on-line monitoring of device effect, while feedback information realizes the automatic control of fairing, Automatic Optimal rectification to control system
The operating parameter of device.
7. being influenced by the factors such as raw water quality and dosing type, fairing and its auxiliary device are likely to occur portion's impurity
Phenomena such as deposition surface, influences device normal use.By setting flusher, it can be achieved that auto-flushing, avoids manually cleaning
It is cumbersome, flushing process nor affects on the normal use of inclined-tube sedimentation tank.
8. fairing is mountable in inclined-tube sedimentation tank and its derivative pond type, light-weight, simple installation be can be widely used for
The newly-built or transformation project of inclined-tube sedimentation tank, improves inclined-tube sedimentation tank service efficiency.
Claims (3)
1. a kind of control method of inclined-tube sedimentation tank water distribution fairing, it is characterised in that the fairing, which includes several pieces, leads
Flowing plate, every piece of deflector are divide into upper part and lower part, and top half is the vertical baffle that adjustable diversion window is arranged, and lower half portion is
Deflector is tilted, feedback device is set below the deflector, and the feedback device is using several holes probes to each deflector
Between flow in gap measure, the flow measured according to feedback device carries out the windowing direction of the adjustable diversion window
It adjusts.
2. a kind of control method of inclined-tube sedimentation tank water distribution fairing described in claim 1, it is characterised in that described vertical
Several rows adjustable diversion window is set on deflector, and diversion window that the part of middle and upper part is adjustable is fast recovery rectifier window, to same direction
Windowing, other rows are to rectify window at a slow speed, between adjacent rows open a window direction be staggered, if feedback device measure left side deflector it
Between flow in gap be less than the flow between the deflector of right side in gap, then control the fast recovery rectifier window and open a window to the left, instead
?.
3. a kind of control method of inclined-tube sedimentation tank water distribution fairing as claimed in claim 2, which is characterized in that described adjustable
Three kinds of turn on window are arranged in diversion window, and respectively window is closed in the windowing of 45 ° of left side, the windowing of 45 ° of right side and centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049479.7A CN105797438B (en) | 2015-03-04 | 2015-03-04 | A kind of control method of inclined-tube sedimentation tank water distribution fairing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049479.7A CN105797438B (en) | 2015-03-04 | 2015-03-04 | A kind of control method of inclined-tube sedimentation tank water distribution fairing |
| CN201510096534.3A CN104707370B (en) | 2015-03-04 | 2015-03-04 | A kind of tube settler water distribution fairing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510096534.3A Division CN104707370B (en) | 2015-03-04 | 2015-03-04 | A kind of tube settler water distribution fairing |
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| CN105797438A CN105797438A (en) | 2016-07-27 |
| CN105797438B true CN105797438B (en) | 2019-09-03 |
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| CN201510096534.3A Active CN104707370B (en) | 2015-03-04 | 2015-03-04 | A kind of tube settler water distribution fairing |
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| CN201510096534.3A Active CN104707370B (en) | 2015-03-04 | 2015-03-04 | A kind of tube settler water distribution fairing |
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| CN107244754B (en) * | 2017-07-15 | 2023-04-21 | 北京得世达环保科技有限公司 | Adjustable air plug flow equipment and installation mode |
| CN107715567A (en) * | 2017-10-13 | 2018-02-23 | 王晨亮 | A kind of kitchen bathroom desk basin apparatus |
| CN108218021A (en) * | 2017-10-13 | 2018-06-29 | 马礼艳 | A kind of improved-type sewage disposal settler |
| CN108211433A (en) * | 2017-10-13 | 2018-06-29 | 马礼艳 | A kind of modified sewage disposal settler |
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| CN87216433U (en) * | 1987-12-15 | 1988-09-07 | 上海市政工程设计院 | Superpulse clarifier tank |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105797438A (en) | 2016-07-27 |
| CN104707370A (en) | 2015-06-17 |
| CN104707370B (en) | 2016-04-27 |
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