CN106841356A - A kind of self-cleaning pH on-line monitoring systems - Google Patents
A kind of self-cleaning pH on-line monitoring systems Download PDFInfo
- Publication number
- CN106841356A CN106841356A CN201710021744.5A CN201710021744A CN106841356A CN 106841356 A CN106841356 A CN 106841356A CN 201710021744 A CN201710021744 A CN 201710021744A CN 106841356 A CN106841356 A CN 106841356A
- Authority
- CN
- China
- Prior art keywords
- measuring cell
- electrodes
- pneumatic operated
- operated valve
- feeding
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 238000004140 cleaning Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012895 dilution Substances 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 2
- 108091006146 Channels Proteins 0.000 claims 3
- 102000010637 Aquaporins Human genes 0.000 claims 1
- 108010063290 Aquaporins Proteins 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract description 2
- 231100000572 poisoning Toxicity 0.000 abstract 1
- 230000000607 poisoning effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 238000001139 pH measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000012088 reference solution Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 206010015866 Extravasation Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/38—Cleaning of electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a kind of self-cleaning pH on-line monitoring systems, including measuring cell, fluid energizer, pH on-line computing models, pH electrodes, control module and feeding-passage；The pH electrodes are installed in measuring cell, and measuring cell one end is connected with feeding-passage, and the other end is connected with fluid energizer；The pH electrodes are connected with pH on-line computing models, and pH on-line computing models are connected with control module；The feeding-passage is connected with control module.The present invention prevents electrode fouling, reduce electrode poisoning probability, pH on-line monitoring system long-term safety reliability services are fundamentally solved the problems, such as, 3 ~ 5 times of the service life of pH electrodes can be extended under equal operating mode, be widely used in the working environment of the rather harsh such as petrochemical enterprise.
Description
Technical field
The invention belongs to pH field of measuring technique, more particularly to a kind of self-cleaning pH on-line monitoring systems.
Background technology
PH measurements belong to galvanic interaction, and principle is that chemical energy is converted into electric energy.PH measurements are that industrial circle is used extensively
General process monitoring means, although have passed through the development in a nearly century, are presently the most conventional still liquid filled type
Glass electrode.The major part of glass electrode is that sensing glass film and inner wire are made up of interior reference solution and internal reference electrode.
The electric channel of glass electrode formation current potential relies primarily on micro- osmotic pressure of reference solution in electrode.When this electric channel is blocked, example
As electrode is located at hyperbaric environment or testing medium excessive concentration, and interior reference liquid fluid infusion is smooth, or when having bubble,
The extravasation of interior reference liquid will be hindered, is forbidden measurement；Another situation is testing medium reverse osmosis in interior reference liquid, make in
Reference liquid pollution even produces chemical reaction, then destroys internal reference electrode, ultimately results in measurement error increase even electrode
Failure.
Currently, it is limited to the principle and manufacturing process of pH electrodes, is used in electroplating wastewater, pharmacy more pH on-line measurement systems and gives up
Under the work condition environment relatively low with respect to contaminated electrode degree such as water, dyeing waste water, paper waste, pure water.And in the height of petroleum chemical enterprise
In the environment of warm high pressure high pollution, online pH measurements are extremely difficult, and the method for being currently mainly used offline sampling and measuring is obtained.
In the operating mode of petroleum chemical enterprise, the universal life-span only has 1 ~ 2 week or even several days to pH electrodes.
To extend the service life of electrode, most basic method exactly improves the working environment of electrode.Present pH is online
Monitor, is all that to be in high pollution, high pressure, high concentration etc. severe when electrode during electrode to be mounted directly into testing medium
When under operating mode, electrode will be quickly invalidated.If electrode time under the work of mal-condition can be made significantly to shorten, and timing is right
Electrode is cleaned, it is possible to effective guard electrode, extends electrode life.Manually cleaning can solve this problem, but
It is that under the hazardous environment of petrochemical plant HTHP, dismounting electrode with pressure has danger, and easily causes artificial damage,
In addition the missing on manpower, implements and is also extremely difficult.
The content of the invention
The invention aims to solve the above problems, there is provided one kind realizes pH real-time onlines using auto-cleaning method
The self-cleaning pH on-line monitoring systems of measurement.
Therefore, the technical scheme is that：A kind of self-cleaning pH on-line monitoring systems, it is characterised in that：Including measurement
Pond, fluid energizer, pH on-line computing models, pH electrodes, control module and feeding-passage；The pH electrodes are installed on measuring cell
In, measuring cell one end is connected with feeding-passage, and the other end is connected with fluid energizer；The pH electrodes and pH on-line computing models
It is connected, pH on-line computing models are connected with control module；The feeding-passage is connected with control module.
Further, the measuring cell and feeding-passage are respectively connected with fluid energizer, pH electrodes with measurement
Installed by static seal mode in pond.
Further, the feeding-passage is divided into water-dilution channel and medium channel, and the water-dilution channel front end is provided with clear water
Entrance, end is divided into two-way, leads up to the first pneumatic operated valve connecting fluid energizer, leads up to the connection of the second pneumatic operated valve and surveys
Amount pond；The medium channel front end is provided with medium inlet, and end connects measuring cell by the 3rd pneumatic operated valve；Described first is pneumatic
Valve, the second pneumatic operated valve, the 3rd pneumatic operated valve are by solenoid valve control, magnetic valve link control module.
There is measuring cell of the invention rinse water and testing medium to alternate the function of passing through, and fluid energizer can
Lifting medium kinetic energy, pH on-line computing models and pH electrodes have explosion prevention function, and control module has explosion prevention function, feeding-passage energy
Enough circulations of automatic switchover clear water and medium.
During present invention work, opening and closing of the control module to feeding-passage carry out procedure auto-control, make rinse water
Measuring cell is appeared alternatively in testing medium, in the state of testing medium presence, is obtained by pH electrodes and pH on-line computing models
The pH value of testing medium, and realize remote transmission and the storage of measurement data.The present invention prevents electrode fouling, in reduction electrode
Malicious probability, fundamentally solves the problems, such as pH on-line monitoring system long-term safety reliability services, can extend under equal operating mode
3 ~ 5 times of the service life of pH electrodes, is widely used in the working environment of the rather harsh such as petrochemical enterprise.
Brief description of the drawings
It is described in further detail below in conjunction with accompanying drawing and embodiments of the present invention
Fig. 1 is structural representation of the invention；
Fig. 2 is system layout figure of the invention.
Marked in figure：Measuring cell 1, ejector 2, pH electrodes 3, pH on-line computing models 4, control module 5, feeding-passage 6,
Water-dilution channel 61, clear water entrance 611, medium channel 62, medium inlet 621, liquid outlet 63, the first magnetic valve 7, the second electromagnetism
Valve 8, the pneumatic operated valve 10 of the 3rd magnetic valve 9 first, the second pneumatic operated valve 11, the 3rd pneumatic operated valve 12.
Specific embodiment
Referring to accompanying drawing.The present embodiment includes measuring cell 1, fluid energizer, pH on-line computing models 4, pH electrodes 3, control
Module 5 and feeding-passage 6；The fluid energizer can be increased zero of fluid dynamic energy by ejector, pump or other classes
Part is constituted, and the present embodiment selects ejector 2, and the pH electrodes 3 are installed in measuring cell 1, the one end of measuring cell 1 and feeding-passage 6
It is connected, the other end is connected with ejector 2；The pH electrodes 3 are connected with pH on-line computing models 4, pH on-line computing models 4 with control mould
Block 5 is connected；The feeding-passage 6 is connected with control module 5, and ejector also connects liquid outlet 63 by pipeline, for lining up
Medium or clear water.
Valve and pipe that the feeding-passage 6 of the present embodiment be able to can be automatically controlled by magnetic valve, pneumatic operated valve or other classes
Road is constituted.6 points of the feeding-passage is water-dilution channel 61 and medium channel 62, and the front end of the water-dilution channel 61 is provided with clear water entrance
611, end is divided into two-way, leads up to the connection ejector 2 of the first pneumatic operated valve 10, leads up to the connection measurement of the second pneumatic operated valve 11
Pond 1；The front end of the medium channel 62 is provided with medium inlet 621, and end connects measuring cell 1 by the 3rd pneumatic operated valve 12；Described
One pneumatic operated valve 10, the second pneumatic operated valve 11, the 3rd pneumatic operated valve 12 pass through the first magnetic valve 7, the second magnetic valve 8, the 3rd electromagnetism respectively
Valve 9 is controlled, and the first magnetic valve 7, the second magnetic valve 8, the 3rd magnetic valve 9 are all connected with control module 5, are controlled by control module 5
First pneumatic operated valve 10, the second pneumatic operated valve 11, the break-make of the 3rd pneumatic operated valve 12.
During present invention work, when the first pneumatic operated valve 10, the second pneumatic operated valve 11 are opened, when the 3rd pneumatic operated valve 12 is closed, clear water
Passage 61 is connected with measuring cell 1, is rinse water in measuring cell 1, and pH value determination, does not clean and protect pH electrodes now；When first
Pneumatic operated valve 10, the 3rd pneumatic operated valve 12 are opened, and when the second pneumatic operated valve 11 is closed, medium channel 62 is connected with measuring cell 1, measuring cell 1
Interior is medium, and now pH on-line computing models 4 start pH value determination by pH electrodes 3, after measurement is finished, closes the 3rd pneumatic operated valve
12, while opening the second pneumatic operated valve 11, pH electrodes 3 are rinsed and are made to fill all pneumatic operated valves after rinse water in measuring cell 1
Close.The pH value that pH on-line computing models 4 are measured is transferred to on-line control module 5.On-line control module 5 is obtained after pH value, is led to
The mode for crossing 4 ~ 20mA or RS485 transfers data to data server.
Claims (3)
1. a kind of self-cleaning pH on-line monitoring systems, it is characterised in that：Including measuring cell, fluid energizer, pH on-line monitorings
Instrument, pH electrodes, control module and feeding-passage；The pH electrodes are installed in measuring cell, measuring cell one end and feeding-passage phase
Even, the other end is connected with fluid energizer；The pH electrodes are connected with pH on-line computing models, pH on-line computing models with control mould
Block is connected；The feeding-passage is connected with control module.
2. a kind of self-cleaning pH on-line monitoring systems as claimed in claim 1, it is characterised in that：The measuring cell and charging are logical
Road is respectively connected with fluid energizer, and pH electrodes are installed with measuring cell by static seal mode.
3. a kind of self-cleaning pH on-line monitoring systems as claimed in claim 1, it is characterised in that：The feeding-passage is divided into clearly
Aquaporin and medium channel, the water-dilution channel front end are provided with clear water entrance, and end is divided into two-way, lead up to the first pneumatic operated valve
Connecting fluid energizer, leads up to the second pneumatic operated valve connection measuring cell；The medium channel front end is provided with medium inlet, end
End connects measuring cell by the 3rd pneumatic operated valve；First pneumatic operated valve, the second pneumatic operated valve, the 3rd pneumatic operated valve pass through magnetic valve control
System, magnetic valve link control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021744.5A CN106841356A (en) | 2017-01-12 | 2017-01-12 | A kind of self-cleaning pH on-line monitoring systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021744.5A CN106841356A (en) | 2017-01-12 | 2017-01-12 | A kind of self-cleaning pH on-line monitoring systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106841356A true CN106841356A (en) | 2017-06-13 |
Family
ID=59123508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021744.5A Pending CN106841356A (en) | 2017-01-12 | 2017-01-12 | A kind of self-cleaning pH on-line monitoring systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106841356A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203601Y (en) * | 2008-05-30 | 2009-03-04 | 上海摩威环境科技有限公司 | High precision water quality on-line automatic monitoring apparatus |
| CN102841119A (en) * | 2012-09-29 | 2012-12-26 | 安徽金星钛白（集团）有限公司 | On-line pH (Potential of Hydrogen) value sampling measurement device for slurry material |
| CN103308582A (en) * | 2012-03-14 | 2013-09-18 | 沈阳中科韦尔腐蚀控制技术有限公司 | Online automatic cleaning device of pH electrode and control method |
| CN204188561U (en) * | 2014-11-21 | 2015-03-04 | 沈阳中科韦尔腐蚀控制技术有限公司 | A kind of novel pH electrode on-line auto-cleaning device |
| CN105223254A (en) * | 2015-11-16 | 2016-01-06 | 云南华联锌铟股份有限公司 | A kind of sampling pre-service and multithread road switch PH measurement mechanism |
| CN206497069U (en) * | 2017-01-12 | 2017-09-15 | 杭州原创软件有限公司 | A kind of self-cleaning pH on-line monitoring systems |
-
2017
- 2017-01-12 CN CN201710021744.5A patent/CN106841356A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203601Y (en) * | 2008-05-30 | 2009-03-04 | 上海摩威环境科技有限公司 | High precision water quality on-line automatic monitoring apparatus |
| CN103308582A (en) * | 2012-03-14 | 2013-09-18 | 沈阳中科韦尔腐蚀控制技术有限公司 | Online automatic cleaning device of pH electrode and control method |
| CN102841119A (en) * | 2012-09-29 | 2012-12-26 | 安徽金星钛白（集团）有限公司 | On-line pH (Potential of Hydrogen) value sampling measurement device for slurry material |
| CN204188561U (en) * | 2014-11-21 | 2015-03-04 | 沈阳中科韦尔腐蚀控制技术有限公司 | A kind of novel pH electrode on-line auto-cleaning device |
| CN105223254A (en) * | 2015-11-16 | 2016-01-06 | 云南华联锌铟股份有限公司 | A kind of sampling pre-service and multithread road switch PH measurement mechanism |
| CN206497069U (en) * | 2017-01-12 | 2017-09-15 | 杭州原创软件有限公司 | A kind of self-cleaning pH on-line monitoring systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206497069U (en) | A kind of self-cleaning pH on-line monitoring systems | |
| CN103698265A (en) | Internal corrosion testbed for engine coolant radiator tank | |
| CN203178290U (en) | Full-automatic biochemical ionic analysis liquid path system | |
| CN106370445B (en) | Ballast water for ship filter capability experimental provision | |
| CN203881499U (en) | Leak detection device for firefighting bottle | |
| CN202057663U (en) | Online monitoring instrument for total nitrogen in water utilizing ultraviolet digestion method | |
| CN106645619A (en) | Real-time in-situ water quality monitor and monitoring method thereof | |
| CN204269640U (en) | A kind of seawater detects and collecting device | |
| CN214750211U (en) | Automatic water quality monitoring system | |
| CN106841356A (en) | A kind of self-cleaning pH on-line monitoring systems | |
| CN203350169U (en) | Sampling rinsing system | |
| CN220104973U (en) | Pipeline scale formation sensibility testing device | |
| CN211013652U (en) | Sampling device for underground water monitoring well | |
| CN209308096U (en) | A kind of water process pipeline and equipment leakproof monitoring device | |
| CN206772641U (en) | A kind of water quality sampling pretreatment system | |
| CN111174098A (en) | Flow path system of water quality analyzer and accurate quantification method | |
| CN206960290U (en) | The online rheological analysis device of polymer solution high pressure | |
| CN211527944U (en) | Water quality monitoring preprocessing device and water quality monitoring system | |
| CN101270852B (en) | Pipeline leak detection device | |
| CN101915824A (en) | Fast inspection device of effluent quality of immersed type membrane pond | |
| CN214041371U (en) | Movable offshore oilfield water injection quality on-line monitoring device | |
| CN209606314U (en) | A kind of ozone concentration on-line detecting system | |
| CN207832615U (en) | A kind of interior cooling water system of cleannes on-line checking | |
| CN108518388A (en) | A kind of multifunction hydraulic cleaning filtering vehicle | |
| CN204269409U (en) | The sampler that the Heisui River gas-liquid-solid of gasification system forms entirely |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |
|
| WD01 | Invention patent application deemed withdrawn after publication |