CN107462783A - Streaming potential on-line measurement instrument - Google Patents
Streaming potential on-line measurement instrument Download PDFInfo
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- CN107462783A CN107462783A CN201610384813.4A CN201610384813A CN107462783A CN 107462783 A CN107462783 A CN 107462783A CN 201610384813 A CN201610384813 A CN 201610384813A CN 107462783 A CN107462783 A CN 107462783A
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- Prior art keywords
- water
- streaming potential
- line measurement
- probe
- measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/24—Arrangements for measuring quantities of charge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention provides a kind of streaming potential on-line measurement instrument, including following aspect：First, the determination of on-line measurement, to realize on-line measurement, sample water is needed to continue to flow through measurement apparatus（Sensor）Probe, new sample water ceaselessly substitutes old sample water, ensures that what the measurement apparatus detection signal tracked the change flocculant of residual charge in tested water always adds effect；2nd, residual charge accurate measurement, the electromotive force principle in theory of electronics, electric charge is done work, makes its displacement in two electrodes, two point poles produce voltage, to detect the residual charge in tested water, detection means（Probe）Need to drive tested water continuous moving between two electrodes, residual charge also makees corresponding movement in water, and electric charge moves to form electric current, and electric current flows through two electrodes and produces current potential, it is referred to as streaming potential in the present invention, apparatus of the present invention are referred to as streaming potential on-line measurement instrument.Instrument provided by the invention can realize flocculant concentration on-line checking and optimum control.
Description
Technical field
The present invention relates to a kind of online measuring technique, more particularly to a kind of streaming potential on-line measurement instrument, in real time detection
Residual charge in environment-protective water.The technology can be applied to be made in environmentally friendly water process, including water treatment, sewage disposal, generating
The industry such as paper, weaving, printing and dyeing, oil, food, pharmacy, realize flocculant concentration on-line checking and optimum control.
Background technology
According to theory of flocculation, suspended particles in water are made to precipitate by adding flocculant in environmentally friendly water treatment procedure.
Reaction mechanism is as follows：
Suspended particles in environment-protective water carry negative electrical charge, because same sex electric charge repels each other so that suspended particles can not be precipitated voluntarily.
Go to neutralize the negative electrical charge of suspended particles, it is necessary to add the flocculant with positive charge in environmentally friendly water treatment procedure, make suspended particles
In electroneutral state.Gravitation flocks together the suspended particles of electroneutral state（Flocculation）.When the suspended particles of aggregation
（Flocculated colloid）Weight when exceeding its floating force, flocculated colloid starts to precipitate, and reaches the purification purpose of water process.
More than reaction mechanism show that the treatment effect that the dosage of flocculant directly affects water is as follows：
Added 1. flocculant owes amount：The positive charge that flocculant is brought is less than the negative electrical charge that suspended particles carry in water, after neutralization
Negative electrical charge is superfluous.The repulsive force of remaining negative electrical charge has negative function to gravitation, and flocculating effect is deteriorated, and precipitation is incomplete.
2. flocculant excess adds：The positive charge that flocculant is brought is more than the negative electrical charge that suspended particles carry in water, neutralizes
Positive excess afterwards.The repulsive force of remaining positive charge has negative function to gravitation, and flocculating effect is deteriorated, and precipitation is endless
Entirely.
3. flocculant optimum ad dition：The positive charge equivalent negative electrical charge that suspended particles carry in water that flocculant is brought, in
Suspended particles are in electroneutral state afterwards.Gravitation effect is maximum, and flocculating effect is optimal, and sedimentation effect is best.
Flocculant concentration is the bottleneck of water process, directly affects the treatment effect of water.
The content of the invention
1st, technical problem to be solved
In order to measure flocculant concentration effect in real time, it is necessary to design a kind of on-line measurement device, after detecting flocculant concentration in real time
Residual charge in water.The measurement signal of the device（Positive-negative polarity and amplitude including signal）, directly reflect flocculant concentration
Effect is as follows：
（1）When detection signal is more than zero, show positive excess in tested water, flocculant excess adds.
（2）When detection signal is less than zero, show that negative electrical charge is superfluous in tested water, flocculant is owed amount and added.
（3）When detection signal is equal to zero, show that residual charge is zero in tested water, flocculant optimum ad dition.
Flocculant concentration curve is shown in Fig. 1.
2nd, technical scheme
In order to solve problem above, the invention provides a kind of streaming potential on-line measurement instrument, including：
（1）The determination of in real time/on-line measurement：
In order to realize that measurement is, it is necessary to which sample water continues to flow through measurement apparatus in real time（Sensor）Probe, new sample water is ceaselessly
Substitute old sample water, ensure that the detection signal of the measurement apparatus tracks the change of residual charge in tested water always --- flocculation
Agent adds effect.
（2）Residual charge accurate measurement：
Electromotive force principle in theory of electronics：Electric charge is done work, makes its displacement in two electrodes, two point poles
Produce voltage.
In order to detect the residual charge in tested water, detection means（Probe）Need to drive tested water between two electrodes to connect
Continuous to move, the residual charge in water also makees corresponding movement.Electric charge moves to form electric current, and electric current flows through two electrodes and produces electricity
Position, referred to as streaming potential, apparatus of the present invention are referred to as streaming potential on-line measurement instrument, refer to Fig. 2 in the present invention（Measuring instrument
Device schematic diagram）.
3rd, beneficial effect：
Instrument provided by the invention can realize flocculant concentration on-line checking and optimum control.
Brief description of the drawings
Fig. 1 flocculant concentration curves
Fig. 2 measuring instrument schematic diagrams
Fig. 3 streaming potentials measuring instrument designs（Sectional view）
34. direct current generator；28. rotor；16. light sensitive device；30. semicircle metal parts；29. cam；32. connects hinge；
54th, 50,38. probe water storage part；10. delivery port of popping one's head in；20. on electrode；22. under electrode；52. measuring chamber；40. lower piston；
18. upper piston；64. base；46th, 48. electrode cable；36. signal processing unit；14. water inlet of popping one's head in；44. light sensitive device is led
Line.
Embodiment
The present invention is described in detail below.
1. streaming potential on-line measurement Instrument Design
（1）Signal measurement part
Fig. 3 is the complete design of streaming potential on-line measurement instrument：Tested water is imported into measuring instrument by sampling from entrance 14
Probe, from the discharge of probe outlet 10.42 full of tested water in the space of probe measurement room 52.Lower piston 40 moves up and down driving
Tested water in measuring chamber makees corresponding lower upper movement, and the residual charge being tested in water produces electric current with lower upper movement is made.When
Electric current flows through two electrodes（20,22）When, produce current potential（Streaming potential）.The streaming potential passes through wire（46, 48）Transmit
To signal processing unit 36, primary signal caused by streaming potential on-line measurement instrument is converted to standard by the signal processing unit
Industrial signal, 4-20 milliamperes, 4-5 volt.
（2）Linkage section
Part in Fig. 3：34,28,29,32,18 be Mechanical Driven-transmission mechanism, and driving lower piston is continuous reciprocally to be transported up and down
Dynamic, direct current generator 34 drives its rotor 28 by continuously being rotated with certain rotating speed clockwise, by cam 29, and the dragging of hinge 32
Piston 18 is made continuously to move up and down, and the up and down motion of upper piston drives the up and down motion of lower piston, and upper piston passes through with lower piston
Threaded connection.
（3）Probe mount
The base 64 of probe measurement room 52 is used for closed measurement chamber, prevents tested water from being flowed out from measuring chamber bottom.
（4）Probe water storage part
Water storage part 54,50,38 of popping one's head in is same part, and its effect includes：The feedwater 14 of probe, draining 10；For measurement
Room provides a certain amount of tested water, ensures measuring chamber stably measured.
（5）Light sensation part 16 is combined acquisition electric signal with semi-circular features 30, is used for signal transacting, 44 lead for connection
Line.
Claims (6)
1. the present invention relates to a kind of online measuring technique, more particularly to a kind of streaming potential on-line measurement instrument, including with lower section
Face：First, the determination of in real time/on-line measurement, in order to realize measurement in real time, it is necessary to which sample water continues to flow through measurement apparatus probe, newly
Sample water ceaselessly substitute old sample water, ensure that the detection signal of the measurement apparatus tracks residual charge in tested water always
Change --- flocculant adds effect；2nd, residual charge accurate measurement, the electromotive force principle in theory of electronics：It is right
Electric charge does work, and makes its displacement in two electrodes, and two point poles produce voltage, in order to detect the residue electricity in tested water
Lotus, detection means needs, which drive, is tested water continuous moving between two electrodes, and the residual charge in water also makees corresponding movement, electricity
Lotus moves to form electric current, and electric current flows through two electrodes and produces current potential, and referred to as streaming potential, apparatus of the present invention claim in the present invention
Make streaming potential on-line measurement instrument.
A kind of 2. streaming potential on-line measurement instrument as claimed in claim 1, it is characterised in that：Tested water is by sampling from entering
Mouthful（14）Measuring instrument probe is imported into, is exported from probe（10）Discharge, probe measurement room（52）Space in（42）Full of quilt
Survey water, lower piston（40）The tested water moved up and down in driving measuring chamber make the corresponding lower upper residue for moving, being tested in water
Electric charge produces electric current, when electric current flows through two electrodes with lower upper movement is made（20）、（22）When, streaming potential is produced, this is travelling
Current potential passes through wire（46）、 （48）It is delivered to signal processing unit（36）, the signal processing unit is by streaming potential on-line measurement
Primary signal caused by instrument is converted to the industrial signal of standard, 4-20 milliamperes, 4-5 volts.
A kind of 3. streaming potential on-line measurement instrument as described in claim 1-2, it is characterised in that：Drive lower piston continuously past
Move up and down again, direct current generator（34）Drive its rotor（28）By continuously being rotated with certain rotating speed clockwise, pass through cam
（29）, and hinge（32）Drag upper piston（18）Work is continuous up and down to move, above and below the up and down motion drive lower piston of upper piston
Motion, upper piston are connected through a screw thread with lower piston.
A kind of 4. streaming potential on-line measurement instrument as described in claim 1-3, it is characterised in that：Probe measurement room（52）'s
Base（64）For closed measurement chamber, tested water is prevented to be flowed out from measuring chamber bottom.
A kind of 5. streaming potential on-line measurement instrument as described in claim 1-4, it is characterised in that：Probe water storage part
（54）,（50）, （38）It is same part, its effect includes：The feedwater of probe（14）, draining（10）；One is provided for measuring chamber
Quantitative tested water, ensure measuring chamber stably measured.
A kind of 6. streaming potential on-line measurement instrument as described in claim 1-5, it is characterised in that：Light sensation part（16）With half
Circle part（30）Acquisition electric signal is combined, is used for signal transacting,（44）For connecting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384813.4A CN107462783A (en) | 2016-06-02 | 2016-06-02 | Streaming potential on-line measurement instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384813.4A CN107462783A (en) | 2016-06-02 | 2016-06-02 | Streaming potential on-line measurement instrument |
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| CN107462783A true CN107462783A (en) | 2017-12-12 |
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| CN201610384813.4A Pending CN107462783A (en) | 2016-06-02 | 2016-06-02 | Streaming potential on-line measurement instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540845A (en) * | 1991-02-27 | 1996-07-30 | Basil William Brook | Method of and apparatus for monitoring aqueous streams |
| CN202182733U (en) * | 2011-06-17 | 2012-04-04 | 王冰 | Comprehensive measuring instrument for temperature, electrical conductivity and pH value of water sample |
| CN103645387A (en) * | 2013-12-03 | 2014-03-19 | 镇江腾龙智能科技有限公司 | Streaming potential titration instrument |
| CN103645388A (en) * | 2013-12-03 | 2014-03-19 | 镇江腾龙智能科技有限公司 | Online streaming potential measuring instrument |
| CN103792261A (en) * | 2013-12-03 | 2014-05-14 | 镇江腾龙智能科技有限公司 | Improvement of water inlet and water outlet of probe of streaming potential online measuring instrument |
-
2016
- 2016-06-02 CN CN201610384813.4A patent/CN107462783A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540845A (en) * | 1991-02-27 | 1996-07-30 | Basil William Brook | Method of and apparatus for monitoring aqueous streams |
| CN202182733U (en) * | 2011-06-17 | 2012-04-04 | 王冰 | Comprehensive measuring instrument for temperature, electrical conductivity and pH value of water sample |
| CN103645387A (en) * | 2013-12-03 | 2014-03-19 | 镇江腾龙智能科技有限公司 | Streaming potential titration instrument |
| CN103645388A (en) * | 2013-12-03 | 2014-03-19 | 镇江腾龙智能科技有限公司 | Online streaming potential measuring instrument |
| CN103792261A (en) * | 2013-12-03 | 2014-05-14 | 镇江腾龙智能科技有限公司 | Improvement of water inlet and water outlet of probe of streaming potential online measuring instrument |
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Application publication date: 20171212 |
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