CN201653974U - Residual chlorine sensor without film - Google Patents
Residual chlorine sensor without film Download PDFInfo
- Publication number
- CN201653974U CN201653974U CN2009202419404U CN200920241940U CN201653974U CN 201653974 U CN201653974 U CN 201653974U CN 2009202419404 U CN2009202419404 U CN 2009202419404U CN 200920241940 U CN200920241940 U CN 200920241940U CN 201653974 U CN201653974 U CN 201653974U
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- electrode
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- diaphragm ring
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Abstract
A residual chlorine sensor without film comprises: a waterproof joint, an electrode housing, a signal processing circuit board, a reference electrode, a working electrode, an electrode seat, a selective ion diaphragm ring, an electrolyte cavity casing and an electrolyte cavity. The gold electrode of the working electrode is a film-less structure, and contacts the solution for testing directly; the residual chlorines in the solution can react with the surface of the gold electrode (cathode) directly, receives electrons from the gold electrode to become chlorine ions; under the effect of electric field force, the chlorine ions move to the silver/silver chloride electrode (anode) by a selective ion diaphragm ring, and react with the silver to become silver chloride to achieve a current loop and to realize the measurement of residual chlorine in water. The sensor of the utility model has a simple structure, can be cleaned conveniently, and can enlarge use scope.
Description
Technical field
The utility model relates to a kind of measurement mechanism of measuring chlorine class sanitizer content in the water, and being specially is the no film residual chlorine sensor that is used for detecting water chlorine residue, total chlorine, chlorine dioxide.
Background technology
At present, known sensor is that gold electrode is a working electrode, and silver/silver chloride is to electrode.Gold electrode and silver/silver chloride electrode are immersed in the electrolyte cavities that is full of electrolytic solution, and electrolyte cavities contacts with extraneous by hydrophilic porous film.Effective chlorine composition in the solution to be measured (hypochlorous acid, hypochlorite, chlorine dioxide or chloramines etc.) diffuses in the electrolyte cavities by porous hydrophilic film, is reduced the formation electric current in gold electrode surfaces.Owing to be added with negative voltage at gold electrode, to effective chlorine composition (hypochlorous acid, hypochlorite, chlorine dioxide or chloramines etc.) play accelerating effect in the reaction of gold electrode surfaces, the hypochlorous acid that arrives gold electrode surfaces is reduced immediately, effective chlorine composition (hypochlorous acid in the electrolyte cavities, hypochlorite, chlorine dioxide or chloramines etc.) concentration is approximately zero, the speed that this size of current and effective chlorine composition diffuse in the electrolyte cavities is proportional, under the certain condition of temperature, effective chlorine composition (hypochlorous acid in this speed and the solution, hypochlorite, chlorine dioxide or chloramines etc.) proportional, realize mensuration to chlorine residue in the water.The measurement characteristics of the characteristic of porous hydrophilic film decision sensor, when porous hydrophilic film is stopped up by organic macromolecule or other pollutants, the permeability changes of film, influence is measured.Must often clean troublesome maintenance, expense height to film in order to obtain accurately measurement result.In addition, because this film is a porous hydrophilic film, the water wettability of film is subjected to the influence of surfactant huge, and the surfactant of trace may make the permeability of film that huge change takes place, so the overlay film residual chlorine sensor can not use in the occasion that contains surfactant.
The utility model content
The technical matters that the utility model solved is to provide a kind of no film residual chlorine sensor, to solve the shortcoming in the above-mentioned background technology.
The technical matters that the utility model solved realizes by the following technical solutions:
A kind of no film residual chlorine sensor, comprise water joint, electrode shell, signal processing circuit board, contrast electrode, working electrode, electrode tip holder, selectivity ion diaphragm ring, the electrolyte cavities shell, electrolyte cavities, the working electrode gold electrode is no membrane structure, directly contact with solution to be measured, chlorine residue in the solution directly in the gold electrode surfaces reaction, is accepted electronics from gold electrode and is become chlorion, and chlorion is under the electric field force effect, moving by a selectivity ion diaphragm hoop anode, form silver chloride with the silver reaction, finish current return, realize measurement chlorine residue in the water.
In chlorine residue described in the utility model is hypochlorous acid or hypochlorite, and described anode is silver/silver chloride.
In the utility model, working electrode gold electrode in the sensor directly contacts with solution to be measured, electrode silver/silver chloride electrode is positioned at the electrolyte cavities that is surrounded as by electrode tip holder, electrolytic solution shell and selectivity ion diaphragm ring, wherein diaphragm ring is thickness 1---3mm, external diameter 8---12mm, internal diameter is the annulus of 4---8mm, and the electrolytic solution in the chamber is potassium chloride or other chloride electrolyte.When sensor is arranged in when containing solutions of chlorine, hypochlorous acid in the solution or chlorine dioxide are at the surperficial electron gain of working electrode gold electrode (negative electrode), become chlorion, chlorion enters in the electrolyte cavities with reaction forms silver chloride to the silver in the electrode (anode) by selectivity ion diaphragm ring, thereby and between negative electrode and anode, form electric current for anode the electron transport, this size of current is with thereby to reach in the hypochlorous acid content solution proportional and to be measured of gold electrode surfaces hypochlorous acid content proportional, at pH one regularly, proportional with contents of residual chlorine to be measured in the solution, thus realization is to the measurement of chlorine residue.Because chlorion is just born the function of transfer charge in measuring process, and its to move be to move under electric field action, even the therefore contaminated transfer that also can not have influence on electric charge of barrier film, and because barrier film is a solid structure, have stronger impact resistance, available toothbrush is directly scrubbed its surface.
Be positioned at sensor outer housing at signal processing circuit board described in the utility model, finish amplification and processing signal.
Beneficial effect: the utility model is simple in structure, it is convenient to clean, improve the usable range of residual chlorine sensor, make that sensor can be in the use steady in a long-term of sewage environment and the occasion that contains surfactant, reduce maintenance, reduce maintenance cost, signal processing circuit directly is encapsulated in the sensor, measuring-signal is realized teletransmission by the 4-20mA current signal, and antijamming capability is strong.
Description of drawings
Fig. 1 is the utility model structured flowchart;
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Specify the utility model embodiment referring to Fig. 1.
A kind of no film residual chlorine sensor, comprise, water joint 1, electrode shell 2, signal processing circuit board 3, contrast electrode 4, working electrode 5, electrode tip holder 6, selectivity ion diaphragm ring 7, electrolyte cavities shell 8, electrolyte cavities 9, wherein water joint is a nylon material, and sensor outer housing adopts the engineering plastics injection moulding to make, and electrode tip holder adopts the engineering plastics injection moulding to make, contrast electrode is that silver/silver chloride adopts the filamentary silver coiling to form, working electrode is a gold, is embedded in the electrode tip holder by injection moulding, and selectivity ion diaphragm ring adopts conductive silicon rubber to make.Electrolytic solution is potassium chloride, when working sensor electrode 5 is arranged in when containing solutions of chlorine, hypochlorous acid in the solution or chlorine dioxide are at the surperficial electron gain of gold electrode (negative electrode), become chlorion, chlorion enters in the electrolyte cavities 9 by selectivity ion diaphragm ring 7 and the reaction of the silver in the contrast electrode (anode) forms silver chloride, and give anode with electron transport, thereby between negative electrode and anode, form electric current, this size of current is with thereby to reach in the hypochlorous acid content solution proportional and to be measured of gold electrode surfaces hypochlorous acid content proportional, at pH one regularly, proportional with contents of residual chlorine to be measured in the solution, thus realization is to the measurement of chlorine residue.Because chlorion is just born the function of transfer charge in measuring process, and its to move be to move under electric field action, even the therefore contaminated transfer that also can not have influence on electric charge of barrier film, and because barrier film is a solid structure, has stronger impact resistance, its cleaning is very simple, and available toothbrush is directly scrubbed its surface.Signal processing circuit board is positioned at sensor outer housing, finishes amplification and processing to signal.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. no film residual chlorine sensor, comprise water joint, electrode shell, signal processing circuit board, contrast electrode, working electrode, electrode tip holder, selectivity ion diaphragm ring, the electrolyte cavities shell, electrolyte cavities is characterized in that, described water joint is a nylon material, sensor outer housing adopts the engineering plastics injection moulding to make, and electrode tip holder adopts the engineering plastics injection moulding to make, and contrast electrode is that silver/silver chloride adopts the filamentary silver coiling to form, working electrode is a gold, be embedded in the electrode tip holder by injection moulding, selectivity ion diaphragm ring adopts conductive silicon rubber to make, and is provided with the device to the amplification and the processing of signal in the described signal processing circuit board sensor outer housing.
2. a kind of no film residual chlorine sensor according to claim 1 is characterized in that, at described selectivity ion diaphragm ring thickness 1---3mm, external diameter 8---12mm, internal diameter are the annulus of 4---8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202419404U CN201653974U (en) | 2009-12-29 | 2009-12-29 | Residual chlorine sensor without film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202419404U CN201653974U (en) | 2009-12-29 | 2009-12-29 | Residual chlorine sensor without film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653974U true CN201653974U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202419404U Expired - Fee Related CN201653974U (en) | 2009-12-29 | 2009-12-29 | Residual chlorine sensor without film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653974U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817212A (en) * | 2017-10-31 | 2018-03-20 | 中国航空综合技术研究所 | A kind of micro- liquid film ion concentration sensor |
| CN109239144A (en) * | 2017-07-10 | 2019-01-18 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Current mode chlorine dioxide sensor |
| CN109270232A (en) * | 2018-08-08 | 2019-01-25 | 佛山科学技术学院 | A kind of monitoring of water pollution big data and method for early warning and device |
| CN109916986A (en) * | 2019-04-15 | 2019-06-21 | 国弘环保仪器（昆山）有限公司 | Self-cleaning digital residual chlorine sensor |
| CN110006964A (en) * | 2019-04-11 | 2019-07-12 | 厦门英仕卫浴有限公司 | A kind of chlorine residue detection method |
| CN110231379A (en) * | 2019-06-12 | 2019-09-13 | 成都万众壹芯生物科技有限公司 | A kind of residual chlorine sensor and application thereof based on electrochemical principle |
| CN114930165A (en) * | 2019-12-06 | 2022-08-19 | 创新水护理有限责任公司 | Amperometric sensor for measuring free chlorine with a reference electrode having a gold electrode surface consisting of a series of electrically connected, spaced apart surface portions |
-
2009
- 2009-12-29 CN CN2009202419404U patent/CN201653974U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239144A (en) * | 2017-07-10 | 2019-01-18 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Current mode chlorine dioxide sensor |
| CN107817212A (en) * | 2017-10-31 | 2018-03-20 | 中国航空综合技术研究所 | A kind of micro- liquid film ion concentration sensor |
| CN107817212B (en) * | 2017-10-31 | 2019-10-29 | 中国航空综合技术研究所 | A kind of micro- liquid film ion concentration sensor |
| CN109270232A (en) * | 2018-08-08 | 2019-01-25 | 佛山科学技术学院 | A kind of monitoring of water pollution big data and method for early warning and device |
| CN109270232B (en) * | 2018-08-08 | 2020-07-28 | 佛山科学技术学院 | Water pollution big data monitoring and early warning method and device |
| CN110006964A (en) * | 2019-04-11 | 2019-07-12 | 厦门英仕卫浴有限公司 | A kind of chlorine residue detection method |
| CN109916986A (en) * | 2019-04-15 | 2019-06-21 | 国弘环保仪器（昆山）有限公司 | Self-cleaning digital residual chlorine sensor |
| CN110231379A (en) * | 2019-06-12 | 2019-09-13 | 成都万众壹芯生物科技有限公司 | A kind of residual chlorine sensor and application thereof based on electrochemical principle |
| CN114930165A (en) * | 2019-12-06 | 2022-08-19 | 创新水护理有限责任公司 | Amperometric sensor for measuring free chlorine with a reference electrode having a gold electrode surface consisting of a series of electrically connected, spaced apart surface portions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20111229 |