CN207503055U - Water factory's automatic control of coagulant dosage system - Google Patents
Water factory's automatic control of coagulant dosage system Download PDFInfo
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- CN207503055U CN207503055U CN201721347501.2U CN201721347501U CN207503055U CN 207503055 U CN207503055 U CN 207503055U CN 201721347501 U CN201721347501 U CN 201721347501U CN 207503055 U CN207503055 U CN 207503055U
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Abstract
The utility model discloses a kind of water factory's automatic control of coagulant dosage systems, it includes the turbidity transducer, source water ga(u)ge, the administration device that are set gradually since the water inlet of source water pipeline, and controller and the Stream current detector that is arranged on deposition reaction pond, the administration device include the liquor strength sensor, metering pump, medicinal liquid flow meter and the frequency converter that are arranged in medical solution pool.Pass through the water quality situation in Stream current detector Real-time Feedback deposition reaction pond, controller adjusts the output flow of metering pump, the liquid actual flow of metering pump output is fed back by medicinal liquid flow meter, closed-loop control is achieved the purpose that, realize that liquid is accurately launched, avoid the nonlinear problem launched according to source water turbidity, solve the problems, such as dosing deficiency cause water quality cannot up to standard or dosing that cost is excessively caused to occupy is high, manpower intervention, adjust automatically liquid input amount are not needed to.
Description
Technical field
The utility model is related to a kind of Coagulant Dosing System of Water Works, more particularly to a kind of water factory's automatic control of coagulant dosage
System.
Background technology
City tap-water factory, conventional process include the links, wherein coagulating treatment such as coagulation, precipitation, filtering and disinfection
It is first of production process, is the basis of entire water process.It is mutually collided by coagulant and the hydrophobicity particulate matter in the water of source
And contact, high quality alumen ustum is condensed into, water purification is obtained after filtering out alumen ustum, wherein coagulation dosage needed for accurately adding is to obtain well
The problem of coagulation effect and guarantee effluent characteristics most critical, dispensing is very few cannot to remove hydrophobicity particulate matter completely, launch excessive
Waste coagulant.
Currently, the injected volume of liquid usually carries out ratio control according to source water flow and source water turbidity, but operability is not
By force, because source water turbidity and liquid injected volume are non-linear, there are dosing deficiency cause water quality cannot up to standard or dosing excessively cause
Cost occupies the problem of high, it is also necessary to which manpower intervention acquires deposition reaction water matter, carries out dosage adjustment.
Utility model content
The utility model is intended at least solve technical problem in the prior art, especially innovatively proposes a kind of water
Factory's automatic control of coagulant dosage system.
In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of water factory's automatic control of coagulant dosage
System, it includes the turbidity transducer, source water ga(u)ge, the administration device that are set gradually since the water inlet of source water pipeline,
And controller and the Stream current detector that is arranged on deposition reaction pond, the administration device include being arranged in medical solution pool
Liquor strength sensor, metering pump, medicinal liquid flow meter and frequency converter；The inlet of metering pump is connect with medical solution pool liquid outlet,
Liquid outlet is connect with medicinal liquid flow meter inlet, and medicinal liquid flow meter liquid outlet is connect with source water pipeline；The inverter output terminal
It is connect with motors of metering pumps input terminal；The controller input terminal exports respectively with turbidity transducer output terminal, source water ga(u)ge
End, medicinal liquid flow meter output terminal, Stream current detector output terminal are connected with liquor strength sensor output, controller output
The start end respectively with inverter input and metering pump is held to connect.
By the water quality situation in Stream current detector Real-time Feedback deposition reaction pond, controller adjusts the defeated of metering pump
Outflow feeds back the liquid actual flow of metering pump output by medicinal liquid flow meter, has achieved the purpose that closed-loop control, realizes medicine
Liquid is accurately launched, and avoids the nonlinear problem launched according to source water turbidity, solve dosing deficiency cause water quality cannot it is up to standard or
Dosing excessively causes cost to occupy the problem of high, does not need to manpower intervention, adjust automatically liquid input amount.
In the another kind of preferred embodiment of the utility model, between the medicinal liquid flow meter liquid outlet and source water pipeline
At least one nozzle is also associated with, nozzle inlet is connect with medicinal liquid flow meter liquid outlet, and nozzle liquid outlet connects with source water pipeline
It connects.Multiple nozzles is set to realize that dispersion is launched, increase the contact area of liquid and source water, convenient for uniform liquid, accelerate coagulation speed
Degree.
In the yet another preferred form of the utility model, back pressure is additionally provided with after the metering pump liquid outlet
Valve, the counterbalance valve inlet are connect with metering pump liquid outlet, and counterbalance valve liquid outlet is connect with medicinal liquid flow meter inlet.Back pressure
Valve, which has, works as to circulating function, could only be opened under certain pressure, avoid flowing back, protect metering pump.
In the yet another preferred form of the utility model, the nozzle can be arranged symmetrically in source water pipeline both sides.
Even results are more preferable when being arranged symmetrically.
In the yet another preferred form of the utility model, the controller model Schneider premium.
In the yet another preferred form of the utility model, the controller is deposited including the first storage unit, second
Storage unit, the first multiplier, the second multiplier, divider, first adder, second adder, first comparator, second are compared
Device and third comparator；First storage unit stores a proportionality coefficient, the second storage unit storage electric current lower limit value；First multiplies
Musical instruments used in a Buddhist or Taoist mass first input end is connect with turbidity transducer output terminal, and the second input terminal is connect with source water ga(u)ge output terminal, output terminal
It is connect with the second multiplier first input end；Second input terminal of the second multiplier is connect with the first storage unit output terminal, defeated
Outlet is connect with divider first input end；The second input terminal of divider is connect with liquor strength sensor output, output terminal
It is connect with the first input end of first adder；The first input end of first comparator connects with Stream current detector output terminal
It connecing, the second input terminal is connect with the second storage unit output terminal, the second input terminal connection of output terminal and first adder, and first
The output terminal of adder and the first input end of second adder connect；The first input end of second comparator and divider it is defeated
Outlet connects, and the second input terminal is connect with medicinal liquid flow meter output terminal, the second input terminal connection of output terminal and second adder；
The output terminal of second adder increases frequency input terminal with frequency converter and connect, and inverter output terminal is connect with motors of metering pumps input terminal；
Third comparator first input end is connect with the second storage unit output terminal, the second input terminal and Stream current detector output terminal
Connection, output terminal subtract frequency input terminal with frequency converter and connect.
When starting detection, controller obtains liquid by source water turbidity, source water flow, liquor strength and proportionality coefficient
Preset flow value, Frequency Converter Control metering pump output flow reach preset flow value, and proportionality coefficient is obtained for protracted experience.Pass through
Stream current detector monitors deposition reaction pond water quality situation, i.e. current characteristics in real time, because the hydrophobicity particulate matter in the water of source is big
Mostly with negative electrical charge, if having detected electric current, and more than electric current lower limit value, it is believed that medicinal liquid flow input is inadequate, output signal
Controller 3 is transmitted to, increases medicinal liquid flow, if having detected electric current, and less than electric current lower limit value, it is believed that medicinal liquid flow is enough
Or it is excessive, output signal is transmitted to controller, reduces medicinal liquid flow.When source water flow, source water turbidity and liquor strength occur
During variation, output signal is transmitted to controller, to adjust the medicinal liquid flow of output.Realize the control to frequency converter.
Description of the drawings
Fig. 1 is the structure diagram of one specific embodiment of the utility model.
Description of the drawings：
1 turbidity transducer；2 source water ga(u)ges；3 controllers；4 Stream current detectors；5 liquor strength sensors；6 meterings
Pump；7 medicinal liquid flow meters；8 frequency converters；9 nozzles；10 counterbalance valves.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the present invention, it is to be appreciated that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instructions such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are based on attached
Orientation or position relationship shown in figure are for only for ease of description the utility model and simplify description rather than instruction or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this
The limitation of utility model.
In the description of the present invention, unless otherwise prescribed and limit, it should be noted that term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be the company inside mechanical connection or electrical connection or two elements
It is logical, it can be directly connected, can also be indirectly connected by intermediary, it for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
The utility model provides a kind of water factory's automatic control of coagulant dosage system, and a kind of structure of preferred embodiment is shown
It is intended to as shown in Figure 1, it includes the turbidity transducer 1, the source water ga(u)ge that are set gradually since the water inlet of source water pipeline
2nd, administration device and controller 3 and the Stream current detector 4 being arranged on deposition reaction pond, administration device include setting
Liquor strength sensor 5, metering pump 6, medicinal liquid flow meter 7 and frequency converter 8 in medical solution pool；The inlet and medicine of metering pump 6
Liquid pool liquid outlet connects, and liquid outlet is connect with 7 inlet of medicinal liquid flow meter, and 7 liquid outlet of medicinal liquid flow meter is connect with source water pipeline；
8 output terminal of frequency converter is connect with 6 input end of motor of metering pump；3 input terminal of controller respectively with 1 output terminal of turbidity transducer, source
2 output terminal of water ga(u)ge, 4 output terminal of Stream current detector, 7 output terminal of medicinal liquid flow meter and liquor strength sensor 5 export
End connection, start end of 3 output terminal of controller respectively with 8 input terminal of frequency converter and metering pump 6 are connect.
In the present embodiment, controller multiplies including the first storage unit, the second storage unit, the first multiplier, second
Musical instruments used in a Buddhist or Taoist mass, divider, first adder, first adder, first comparator, the second comparator and third comparator；First storage
Unit stores a proportionality coefficient, meets：Liquor strength X medicinal liquid flows X proportionality coefficients=source flow quantity X sources liquid turbidity；Second
Storage unit stores electric current lower limit value, and electric current lower limit value numerical value very little goes to zero, when 4 output valve of Stream current detector reaches
During the electric current lower limit value, it is believed that medicinal liquid flow is enough, should reduce input medicinal liquid flow；First multiplier first input end with it is turbid
The connection of 1 output terminal of sensor is spent, the second input terminal is connect with 2 output terminal of source water ga(u)ge, output terminal and the second multiplier first
Input terminal connects；Second the second input terminal of multiplier is connect with the first storage unit output terminal, and output terminal and divider first are defeated
Enter end connection；The second input terminal of divider is connect with 5 output terminal of liquor strength sensor, and output terminal and first adder first are defeated
Enter end connection；First comparator first input end is connect with 4 output terminal of Stream current detector, the second input terminal and the second storage
Unit output terminal connects, and the second input terminal of output terminal and first adder connects, and the output terminal of first adder and second adds
The first input end connection of musical instruments used in a Buddhist or Taoist mass；The output terminal of the first input end of second comparator and divider connects, the second input terminal with
7 output terminal of medicinal liquid flow meter connects, and the second input terminal of output terminal and second adder connects；The output terminal of second adder with
Frequency converter 8 increases frequency input terminal connection, and 8 output terminal of frequency converter is connect with 6 input end of motor of metering pump；Third comparator first inputs
End is connect with the second storage unit output terminal, and the second input terminal is connect with 4 output terminal of Stream current detector, output terminal and frequency conversion
Device 8 subtracts the frequency input terminal connection course of work：When starting detection, controller 3 passes through source water turbidity, source water flow, liquor strength
And proportionality coefficient, liquid preset flow value is obtained, frequency converter 8 controls 6 output flow of metering pump to reach preset flow value, ratio
Coefficient is obtained for protracted experience.Monitor deposition reaction pond water quality situation, i.e. current characteristics in real time by Stream current detector 4,
Because the hydrophobicity particulate matter in the water of source is mostly with negative electrical charge, if having detected electric current, and more than electric current lower limit value, it is believed that liquid
Flow input is inadequate, and output signal is transmitted to controller 3, increases medicinal liquid flow, if having detected electric current, and low less than electric current
Limit value, it is believed that medicinal liquid flow is enough or excessive, and output signal is transmitted to controller 3, reduces medicinal liquid flow.When source flow
When amount, source water turbidity and liquor strength change, output signal is transmitted to controller 3, to adjust the medicinal liquid flow of output.
In the present embodiment, the operation and changes in flow rate amount for specifically increasing or reducing medicinal liquid flow can be set according to the prior art.
In a kind of preferred embodiment of the utility model, between 7 liquid outlet of medicinal liquid flow meter and source water pipeline also
At least one nozzle 9 is connected with, 9 inlet of nozzle is connect with 7 liquid outlet of medicinal liquid flow meter, 9 liquid outlet of nozzle and source water pipeline
Connection.Multiple nozzles 9 is set to realize that dispersion is launched, increase the contact area of liquid and source water, convenient for uniform liquid, accelerate coagulation
Speed.
In a kind of preferred embodiment of the utility model, counterbalance valve 10 is additionally provided with after 6 liquid outlet of metering pump, is carried on the back
10 inlet of pressure valve is connect with 6 liquid outlet of metering pump, and 10 liquid outlet of counterbalance valve is connect with 7 inlet of medicinal liquid flow meter.Counterbalance valve
10, with working as to circulating function, could only open under certain pressure, avoid flowing back, and protect metering pump 6.
In a kind of preferred embodiment of the utility model, nozzle 9 can be arranged symmetrically in source water pipeline both sides.Symmetrical cloth
Even results are more preferable when putting.
In a kind of preferred embodiment of the utility model, 3 model Schneider premium of controller.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
In the case of the principle and objective for not departing from the utility model can these embodiments be carried out with a variety of variations, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (6)
1. a kind of water factory's automatic control of coagulant dosage system, which is characterized in that including since the water inlet of source water pipeline according to
Turbidity transducer (1), source water ga(u)ge (2), administration device and the controller (3) of secondary setting and it is arranged on deposition reaction pond
On Stream current detector (4), the administration device includes being arranged on liquor strength sensor (5) in medical solution pool, metering
Pump (6), medicinal liquid flow meter (7) and frequency converter (8)；The inlet of metering pump (6) is connect with medical solution pool liquid outlet, liquid outlet and medicine
Flow meters (7) inlet connects, and medicinal liquid flow meter (7) liquid outlet is connect with source water pipeline；Frequency converter (8) output terminal with
Metering pump (6) input end of motor connects；Controller (3) input terminal respectively with turbidity transducer (1) output terminal, source water flow
It is defeated to count (2) output terminal, Stream current detector (4) output terminal, medicinal liquid flow meter (7) output terminal and liquor strength sensor (5)
Outlet connects, and start end of controller (3) output terminal respectively with frequency converter (8) input terminal and metering pump (6) is connect.
2. water factory's automatic control of coagulant dosage system as described in claim 1, which is characterized in that in the medicinal liquid flow meter
(7) at least one nozzle (9) is also associated between liquid outlet and source water pipeline, nozzle (9) inlet goes out with medicinal liquid flow meter (7)
Liquid mouth connects, and nozzle (9) liquid outlet is connect with source water pipeline.
3. water factory's automatic control of coagulant dosage system as described in claim 1, which is characterized in that go out in the metering pump (6)
Counterbalance valve (10) is additionally provided with after liquid mouth, counterbalance valve (10) inlet is connect with metering pump (6) liquid outlet, counterbalance valve (10)
Liquid outlet is connect with medicinal liquid flow meter (7) inlet.
4. water factory's automatic control of coagulant dosage system as claimed in claim 2, which is characterized in that the nozzle (9) can be symmetrical
It is arranged in source water pipeline both sides.
5. water factory's automatic control of coagulant dosage system as described in claim 1, which is characterized in that controller (3) model
For Schneider premium.
6. water factory's automatic control of coagulant dosage system as described in claim 1, which is characterized in that the controller includes first
Storage unit, the second storage unit, the first multiplier, the second multiplier, divider, first adder, second adder, first
Comparator, the second comparator and third comparator；First storage unit stores a proportionality coefficient, the second storage unit storage electricity
Flow lower limit value；First multiplier first input end is connect with turbidity transducer (1) output terminal, the second input terminal and source water ga(u)ge
(2) output terminal connects, and output terminal is connect with the second multiplier first input end；Second input terminal of the second multiplier is deposited with first
Storage unit output terminal connects, and output terminal is connect with divider first input end；The second input terminal of divider is sensed with liquor strength
Device (5) output terminal connects, and the first input end of output terminal and first adder connects；The first input end and stream of first comparator
Streaming current detector (4) output terminal connects, and the second input terminal is connect with the second storage unit output terminal, output terminal and the first addition
The second input terminal connection of device, the output terminal of first adder and the first input end of second adder connect；Second comparator
First input end and the output terminal of divider connect, the second input terminal connect with medicinal liquid flow meter (7) output terminal, output terminal and
The second input terminal connection of second adder；The output terminal of second adder increases frequency input terminal with frequency converter (8) and connect, frequency converter
(8) output terminal is connect with metering pump (6) input end of motor；Third comparator first input end and the second storage unit output terminal connect
It connects, the second input terminal is connect with Stream current detector (4) output terminal, and output terminal subtracts frequency input terminal with frequency converter (8) and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347501.2U CN207503055U (en) | 2017-10-19 | 2017-10-19 | Water factory's automatic control of coagulant dosage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347501.2U CN207503055U (en) | 2017-10-19 | 2017-10-19 | Water factory's automatic control of coagulant dosage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207503055U true CN207503055U (en) | 2018-06-15 |
Family
ID=62500902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721347501.2U Active CN207503055U (en) | 2017-10-19 | 2017-10-19 | Water factory's automatic control of coagulant dosage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207503055U (en) |
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2017
- 2017-10-19 CN CN201721347501.2U patent/CN207503055U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Minghui Inventor after: Zhang Yuanhe Inventor after: Han Xinglian Inventor after: Zhong Liang Inventor after: Zhou Zhichao Inventor before: Gao Minghui Inventor before: Zhang Yuanhe Inventor before: Han Xinglian Inventor before: Zhong Liang Inventor before: Zhou Zhichao |
|
| CB03 | Change of inventor or designer information |