CN206730598U - The short stream prevention and control system of sedimentation basin - Google Patents
The short stream prevention and control system of sedimentation basin Download PDFInfo
- Publication number
- CN206730598U CN206730598U CN201720545380.6U CN201720545380U CN206730598U CN 206730598 U CN206730598 U CN 206730598U CN 201720545380 U CN201720545380 U CN 201720545380U CN 206730598 U CN206730598 U CN 206730598U
- Authority
- CN
- China
- Prior art keywords
- flow velocity
- water
- detection signal
- sedimentation basin
- flow
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a kind of short stream prevention and control system of sedimentation basin, for the short flow phenomenon of existing sedimentation basin it is serious the problem of, provide following technical scheme, flow into pipe to be provided with and be used to detecting that sewage to flow into settling zone speed to export corresponding water inlet flow velocity detection signal enters water flow velocity detector, drainage weir, which is provided with, to be used to detect the water rate of outflow in settling zone to export the Water discharge flow speed detector of corresponding draining flow velocity detection signal, enter water flow velocity detector and Water discharge flow speed detector while be electrically connected with for compared with flow velocity detection signal of intaking and be more than draining flow velocity detection signal with the comparison means of output calibration signal, comparison means is electrically connected with the switching device in response to correction signal conducting, water-supply-pipe is provided with response to the conducting of switching device to reduce the magnetic valve of water-supply-pipe flow；The flow velocity that sewage flows into settling zone from inhalant region is reduced, helps to weaken or avoids short flow phenomenon so that the sedimentation effect of sedimentation basin is more preferably.
Description
Technical field
Sewage treatment area is the utility model is related to, more specifically, it relates to a kind of short stream prevention and control system of sedimentation basin.
Background technology
Sedimentation basin is a kind of structures that suspension in water removal is removed using precipitation, and sedimentation basin is in the treatment of waste water widely
Use.
Reference picture 1, sedimentation basin generally comprises is introduced into the inhalant region of sedimentation basin, positioned at precipitation by the water after coagulating treatment
The centre in pond be used for carry out solid particle separated with the precipitation of water and for discharge after precipitation water exhalant region, sewage pass through
Water-supply-pipe flows into inhalant region, and inhalant region is interior to be provided with the perforated wall for entering settling zone for sewage, is provided with and is penetrated to heavy in perforated wall
The inflow pipe in shallow lake area, and the drainage weir flowed into for settling zone water is then provided with exhalant region.
Into the current of sedimentation basin, residence time is usual in pond and differs, and the residence time of a part of water is less than
The residence time is designed, is flowed out quickly outside pond；Then the residence time is more than design residence time, not phase of this residence time to another part
Same phenomenon is short stream.Short stream makes the shorter residence time of a part of water, cannot fully precipitate, reduce deposition efficiency；Separately
The residence time of a part of water may be very long, or even current occurs and stagnate motionless slough substantially, and reduce sedimentation basin has
Imitate volume.One of the main reason for short stream is influence effluent quality of sedimentation tank in a word.The reason for forming short flow phenomenon is a lot, such as enters
The flow velocity for entering sedimentation basin is too high；The long flow in unit weir of effluent weir is excessive；Sedimentation basin inhalant region and exhalant region hypotelorism；Precipitation
Water face is by big wind effect；Water inlet and the density contrast of pool inner water；And existing pillar, training wall and scrape mud facility in sedimentation basin
Deng can form short flow image.
And the digging water speed of sedimentation basin is the factor for causing sedimentation basin relatively conventional with going out water speed imbalance, has and improve
Space.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of sedimentation basin short stream prevention and control system
System, the advantages of short stream situation occurs can be suppressed by having.
To achieve the above object, the utility model provides following technical scheme：
A kind of short stream prevention and control system of sedimentation basin, interior be provided with of the inflow pipe are used to detect sewage inflow settling zone speed with defeated
Go out corresponding water inlet flow velocity detection signal enters water flow velocity detector, and the drainage weir, which is provided with, is used to detect water outflow in settling zone
Speed to export the Water discharge flow speed detector of corresponding draining flow velocity detection signal, it is described enter water flow velocity detector examined with Water discharge flow speed
Survey instrument and be electrically connected with simultaneously and be more than draining flow velocity detection signal for comparing water inlet flow velocity detection signal with output calibration signal
Comparison means, the comparison means is electrically connected with the switching device in response to correction signal conducting, sets on the water-supply-pipe
There is the conducting in response to switching device to reduce the magnetic valve of water-supply-pipe flow.
Using above-mentioned technical proposal, it is provided with flowing into pipe into water flow velocity detector, for detecting the sewage stream of inhalant region
Enter the flow velocity size of settling zone to export corresponding water inlet flow velocity detection signal, and be then provided with drainage weir and be used to detect settling zone
Water flow into the Water discharge flow speed detector of exhalant region flow velocity, Water discharge flow speed detector exports corresponding with flow velocity size draining flow velocity
Detection signal, comparison means compare water inlet flow velocity detection signal and are more than draining flow velocity detection signal with output calibration signal, switch
Device is turned on to reduce the discharge of sewage of inhalant region to solenoid valve, so as to reduce sewage from water inlet in response to correction signal
Area flows into the flow velocity of settling zone, helps to weaken or avoids short flow phenomenon so that the sedimentation effect of sedimentation basin is more preferably.
Preferably, it is described enter water flow velocity detector be electrically connected with for will water inlet flow velocity detection signal converted by digital quantity
For the first D/A converter of analog quantity, the Water discharge flow speed detector be electrically connected with for by draining flow velocity detection signal by
Digital quantity is converted into the second D/A converter of analog quantity.
Preferably, the comparison means is voltage comparator circuit.
Preferably, the switching device include in response to correction signal conducting transistor switching circuit and be controlled by three
The conducting of pole pipe on-off circuit is with the relay switching circuit to solenoid valve.
Preferably, the distributing channel for being used for buffering sewage is provided between the water-supply-pipe and perforated wall.
Preferably, the pipe that flows into is provided with the spigot surface for being used for expanding sewage inflow direction close to one end of distributing channel.
In summary, the utility model has the advantages that：
Comparison means compares water inlet flow velocity detection signal and is more than draining flow velocity detection signal with output calibration signal, switch dress
Put and turned in response to correction signal to reduce the discharge of sewage of inhalant region to solenoid valve, so as to reduce sewage from inhalant region
The flow velocity of settling zone is flowed into, helps to weaken or avoids short flow phenomenon so that the sedimentation effect of sedimentation basin is more preferably.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of prior art in the utility model；
Fig. 2 is the theory structure schematic diagram of inhalant region in the utility model；
Fig. 3 is the theory structure schematic diagram of exhalant region in the utility model；
Fig. 4 is the theory structure schematic diagram of flow control mechanism in the utility model；
Fig. 5 is the theory diagram of circuit part in the utility model；
Fig. 6 is the circuit theory diagrams of circuit part in the utility model.
In figure：1st, perforated wall；21st, pipe is flowed into；22nd, water flow velocity detector is entered；3rd, distributing channel；31st, water-supply-pipe；32nd, electromagnetism
Valve；4th, sawtooth triangular-notch weir；41st, Water discharge flow speed detector；5th, triangle groove；6th, baffle plate；7th, transmission mechanism；71st, power part；72、
Gear；73rd, rack；81st, the first A/D converter；82nd, the second A/D converter；83rd, comparison means；84th, switching device.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is described in detail.
A kind of short stream prevention and control system of sedimentation basin, reference picture 2, the inflow pipe 21 flowed into for sewage, stream is communicated with inhalant region
Enter pipe 21 be provided be used for control flow into the uninterrupted of pipe 21 magnetic valve 32, sewage through flow into pipe 21 flow into inhalant region after first
Into distributing channel 3, the perforated wall 1 that inhalant region is flowed into for sewage is additionally provided with inhalant region in addition, multiple pass through is provided with perforated wall 1
Wear to the inflow pipe 21 of settling zone, flow into pipe 21 and the spigot surface for being used for increasing influx is provided with close to one end of distributing channel 3, flowing
Enter in pipe 21 to be then provided with and be used to detecting that sewage to flow into settling zone speed enters water flow velocity detector 22, it is defeated to enter water flow velocity detector 22
Go out water inlet flow velocity detection signal corresponding with flow velocity size, enter in the present embodiment the selection of water flow velocity detector 22 in the market
The MTLWGY flow velocity instrument of manufacturer production.
Reference picture 1 and Fig. 3, exhalant region are provided with the drainage weir that exhalant region is flowed into for the water after precipitation, arranged in the present embodiment
Mill weir is sawtooth triangular-notch weir 4, i.e. section is sawtooth triangular shape, formed with spaced three on the upper surface of sawtooth triangular-notch weir 4
Angle groove 5, the water of settling zone can flow into exhalant region, small big inverted triangle under being due to triangle groove 5 by triangle groove 5
Shape, so the water of settling zone is more, deeper, the water yield that settling zone flows into exhalant region is faster, in addition, being set on drainage weir
There are the Water discharge flow speed detector 41 that exhalant region water flow velocity is flowed into for detecting settling zone, the output of Water discharge flow speed detector 41 and stream
Draining flow velocity detection signal corresponding to fast size, Water discharge flow speed detector 41 is adopted as a kind of electric wave of in the market in the present embodiment
Current meter, the measurement of flow velocity is measured by electric wave or microwave convection body surface face, will not be repeated here.
Reference picture 4, the stream that can reduce settling zone displacement to the movement of drainage weir opposite side is provided with the side of drainage weir
Measure regulating and controlling mechanism, flow control mechanism includes being close to drainage weir being provided for blocking the baffle plate 6 of current, for providing the dynamic of power
Power portion 71 and gear 72, the rack 73 for moving power-conversion for drive force baffle plate 6.
Reference picture 5, enter water flow velocity detector 22 and be electrically connected with for the digital quantity for flow velocity detection signal of intaking to be converted
For the first A/D converter 81 of analog quantity, Water discharge flow speed detector 41 is electrically connected with for by draining flow velocity detection signal
Digital quantity is converted into the second A/D converter 82 of analog quantity, and the first A/D converter 81 and the second A/D converter 82 are simultaneously
It is electrically connected with the comparison means 83 for comparing water inlet flow velocity detection signal and draining flow velocity detection signal size, comparison means
83 intake flow velocity detection signal be more than draining flow velocity detection signal when output calibration signal.
Comparison means 83 is voltage comparator circuit in the present embodiment, and physical circuit is connected as：Including voltage comparator core
Piece U2, resistance R6 and slide rheostat RP, wherein voltage rate of exchange device chip U2 are LM339, and LM339 in-phase input end connects
In the first A/D converter 81 to receive flow velocity detection signal of intaking, LM339 inverting input is connected to the second A/D converter
82 to receive Water discharge flow speed detection signal, LM339 output end output calibration signal.
Reference picture 5, comparison means 83, which is electrically connected with, to be turned in response to correction signal to control magnetic valve 32 to reduce flow
Switching device 84, in the present embodiment, switching device 84 include in response to correction signal conducting transistor switching circuit and
It is controlled by relay switching circuit of the conducting of transistor switching circuit to be powered to magnetic valve 32, the specific electricity of switching device 84
Road is connected as：
Transistor switching circuit includes triode VT1, the resistance R5 of NPN type, and relay switching circuit includes relay
KM1, sustained diode 1, wherein triode VT1 base stage are connected to LM339 to receive correction signal, triode VT1 base stage
Series resistance R5 is connected to power supply VCC simultaneously, and triode VT1 colelctor electrode is connected to power supply VCC, triode VT1 emitter stage strings
It is grounded after connection relay KM1, triode VT1 emitter stage is connected to diode D1 negative electrode simultaneously, and diode D1 anode connects
Ground, for relay KM1 contact series open in usual in the power supply circuit of magnetic valve 32, magnetic valve 32 reduces circulation after powered up
Amount.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of short stream prevention and control system of sedimentation basin, it is characterized in that：It is heavy for detecting sewage inflow to be provided with the inflow pipe (21)
Shallow lake area speed enters water flow velocity detector (22) with export corresponding water inlet flow velocity detection signal, and the drainage weir, which is provided with, to be used to examine
The water rate of outflow is surveyed in settling zone to export the Water discharge flow speed detector (41) of corresponding draining flow velocity detection signal, it is described enter current
Fast detector (22) and Water discharge flow speed detector (41) while it is electrically connected with for compared with flow velocity detection signal of intaking and is more than row
Water flow velocity detection signal is electrically connected with response to school with the comparison means (83) of output calibration signal, the comparison means (83)
The switching device (84) of positive signal conducting, the water-supply-pipe (31) are defeated to reduce provided with the conducting in response to switching device (84)
The magnetic valve (32) of water pipe (31) flow.
2. the short stream prevention and control system of sedimentation basin according to claim 1, it is characterized in that：It is described enter water flow velocity detector (22) electricity
Property be connected with the first D/A converter for flow velocity detection signal of intaking to be converted into by digital quantity to analog quantity, it is described go out current
Fast detector (41) is electrically connected with changes for draining flow velocity detection signal to be converted into the 2nd D/A of analog quantity by digital quantity
Device.
3. the short stream prevention and control system of sedimentation basin according to claim 2, it is characterized in that：The comparison means (83) is voltage ratio
Compared with device circuit.
4. the short stream prevention and control system of sedimentation basin according to claim 1, it is characterized in that：The switching device (84) includes response
In correction signal conducting transistor switching circuit and be controlled by the conducting of transistor switching circuit to be supplied to magnetic valve (32)
The relay switching circuit of electricity.
5. the short stream prevention and control system of sedimentation basin according to claim 1, it is characterized in that：The water-supply-pipe (31) and perforated wall
(1) distributing channel (3) for being used for buffering sewage is provided between.
6. the short stream prevention and control system of sedimentation basin according to claim 5, it is characterized in that：The pipe (21) that flows into is close to distributing channel
(3) one end is provided with the spigot surface for being used for expanding sewage inflow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545380.6U CN206730598U (en) | 2017-05-16 | 2017-05-16 | The short stream prevention and control system of sedimentation basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545380.6U CN206730598U (en) | 2017-05-16 | 2017-05-16 | The short stream prevention and control system of sedimentation basin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206730598U true CN206730598U (en) | 2017-12-12 |
Family
ID=60565986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720545380.6U Active CN206730598U (en) | 2017-05-16 | 2017-05-16 | The short stream prevention and control system of sedimentation basin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206730598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200636A (en) * | 2018-10-24 | 2019-01-15 | 中科协创环境科技江苏有限公司 | It is a kind of for handling the sedimentation basin of coal chemical industry high-concentration sewage |
-
2017
- 2017-05-16 CN CN201720545380.6U patent/CN206730598U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200636A (en) * | 2018-10-24 | 2019-01-15 | 中科协创环境科技江苏有限公司 | It is a kind of for handling the sedimentation basin of coal chemical industry high-concentration sewage |
| CN109200636B (en) * | 2018-10-24 | 2023-08-22 | 中科协创环境科技江苏有限公司 | Sedimentation tank for treating high-concentration sewage in coal chemical industry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209652027U (en) | A kind of novel plus sand sedimentation basin with spiral stream guidance cylinder | |
| CN206414811U (en) | A kind of segmentation discharge opeing sedimentation basin disposed waste liquid | |
| CN207079046U (en) | A kind of short stream prevention and control system of sedimentation basin | |
| CN206730598U (en) | The short stream prevention and control system of sedimentation basin | |
| CN108479188A (en) | Multilayer water conservancy diversion plate washer orients desilting sand discharge filter device and its method | |
| CN105010095A (en) | Specific discharge type irrigation water metering and controlling device | |
| CN206823266U (en) | Helical form circulation setting pot | |
| CN202223939U (en) | Seawater coagulation sedimentation device | |
| CN110478977A (en) | A kind of spiral flow is from sand draining type desilting filtering ponds | |
| CN105169765B (en) | Irrigation system inlet unit structure | |
| CN206008114U (en) | A kind of improved rectangular sedimentation tank | |
| CN207726796U (en) | A kind of control system of regulating pondage and acid amount | |
| CN207986861U (en) | A kind of integrated gravity water filters of environmental protection and energy saving | |
| CN207347239U (en) | A kind of multilayer inclined-tube sedimentation tank | |
| CN208087290U (en) | A kind of water treatment system | |
| CN206502646U (en) | Efficient micro-electrolysis reactor | |
| CN205672619U (en) | A kind of cleaning plant for second pond distributing channel | |
| CN206239105U (en) | Purification type boiled water tank | |
| CN205886704U (en) | Wadding machine is separated to high efficiency | |
| CN212924622U (en) | Radial-flow type efficient sedimentation device with medium inlet and peripheral outlet | |
| CN201316559Y (en) | Water retaining apron board used on radial flow sedimentation tank | |
| CN106538131A (en) | Dissolution type liquid manure all-in-one | |
| CN203392905U (en) | Coagulation reactor | |
| CN208667205U (en) | A kind of hybrid grid cyclone-flocculation reaction tank | |
| CN206463554U (en) | A kind of high-efficiency swirl-type second pond |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |