CN105527331A - On-line residual chlorine sensor with self-cleaning device - Google Patents
On-line residual chlorine sensor with self-cleaning device Download PDFInfo
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- CN105527331A CN105527331A CN201511030796.6A CN201511030796A CN105527331A CN 105527331 A CN105527331 A CN 105527331A CN 201511030796 A CN201511030796 A CN 201511030796A CN 105527331 A CN105527331 A CN 105527331A
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- China
- Prior art keywords
- solenoid valve
- flow cell
- galvanostat
- interface
- way solenoid
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- 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
Abstract
The present invention relates to an on-line residual chlorine sensor with a self-cleaning device, the on-line residual chlorine sensor comprises a constant current device, a T-tee, a three-way solenoid valve and a flow-through cell, the beneficial effects are as follows: 1) physical grinding and hydrochloric acid washing are performed interactively, the physical grinding strength is controllable, performance is improved, effect is better, and the on-line residual chlorine sensor is fully automatic and controllable; 2) the micro constant current device can ensure a smaller volume, meanwhile substantially increases the output end pressure, and increases the load capacity to increase the reliability of a waterway, and the constant current device rear end waterway may not cutoff; and 3) the constant current device flow rate is affected by earth gravity, liquid level difference and the water flow pipe diameter section, influence on performances are in linear relation, and analysis, debugging, testing and use are facilitated.
Description
Technical field
The present invention relates to a kind of residual chlorine sensor, particularly relate to a kind of online residual chlorine sensor, belong to sensor technical field.
Background technology
In online chlorine residue fields of measurement, constant voltage formula residual chlorine sensor is usually used to measure.Constant voltage formula residual chlorine sensor relies on two platinum rings on electrode carry out redox reaction and work, and when platinum ring adheres to impurity, can cause the change that electrode outputs signal, change the duty of electrode.
In order to obtain stable chlorine residue measurement result in electrode continuous working, then need to add corresponding cleaning device, the mode mainly adopting manual grinding to be combined with hydrochloric acid cleaning at present addresses this problem, manual grinding: regularly use abrasive paper for metallograph polishing electrode, to guarantee that electrode surface is fully polished, remove the attachment on surface; Hydrochloric acid cleaning: electrode to be dipped in the watery hydrochloric acid of 5% 10 seconds, take out afterwards and clean with clear water, dry with soft cloth, and adopt and there is following shortcoming in this way: 1) during manual grinding, if use common sand paper, then can worn out electrode in a large number, cause the heavy wear of platinum ring, significantly reduce electrode life; 2) manual grinding, hydrochloric acid cleaning, all needs to dismantle electrode, if electrode is arranged on profit of having inconvenient traffic, or the position that staff's inconvenience is close, then can cause difficult in maintenance; 3) manual cleaning waste of manpower, twice scavenging period interval is longer, and during this period of time, the attachment of electrode surface creates certain influence to the measurement of electrode.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of online residual chlorine sensor with self-stripping unit is provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of online residual chlorine sensor with self-stripping unit, comprise galvanostat, T-shaped threeway, three-way solenoid valve and flow cell, it is characterized in that, described galvanostat side is provided with the first water inlet, opposite side is provided with the first water delivering orifice, top is provided with gas outlet, described galvanostat inside is also provided with the run-down pipe be connected with the freeing port of bottom, described T-shaped threeway comprise in the first interface of " one " word arrangement and the second interface and with the two the 3rd perpendicular interface, the water delivering orifice of described galvanostat is connected by the first interface of pipeline with T-shaped threeway, the gas outlet of described galvanostat is connected with the 3rd interface of T-shaped threeway by pipeline, described three-way solenoid valve is connected with chlorine residue secondary instrument by supply lines, the second water inlet is provided with on the left of described three-way solenoid valve, right side is provided with hydrochloric acid entrance, centre is provided with the second water delivering orifice, second interface of described T-shaped threeway is connected with the second water inlet of three-way solenoid valve by pipeline, described flow cell comprises the guide pipe on top, the flow cell inner chamber of bottom and the potential electrode of the pond inner chamber that circulates along guide pipe, the top of described potential electrode is fixed on guide pipe by guiding pipe cap, the probe of described potential electrode lower end stretches in flow cell inner chamber, some grinding bead are provided with in described flow cell inner chamber, the hole that described flow cell inner chamber upper and lower is respectively less than grinding bead by a diameter connects the 3rd water inlet and the 3rd water delivering orifice, described 3rd water inlet is connected with the second water delivering orifice of three-way solenoid valve by pipeline.
The invention has the beneficial effects as follows:
1) physics polishing is carried out with hydrochloric acid cleaning interactive mode, and physics polishing dynamics is controlled, performance boost, and better effects if is full-automatic, controlled;
2) miniature galvanostat of the present invention, while ensureing small volume, significantly add the pressure of output terminal, improve load capacity, to increase water route reliability, water route, galvanostat rear end there will not be the situation of cutout;
3) galvanostat flow velocity is by the impact in terrestrial attraction, liquid level difference and current caliber cross section, and its performance impact is linear relationship, is convenient to analyze, debugging, test and use.
On the basis of technique scheme, the present invention can also do following improvement.
Further, O-ring seal is provided with in the middle part of described guide pipe.
The beneficial effect adopting above-mentioned further scheme can be used for fixed electorde, and waterproof sealing effect is better.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of residual chlorine sensor of the present invention;
Fig. 2 is galvanostat structural representation;
Fig. 3 is T-shaped three-port structure schematic diagram;
Fig. 4 is three-way solenoid valve structural representation;
Fig. 5 is flow cell structural representation;
In Fig. 1 ~ 5,1, galvanostat; 1-1, the first water inlet; 1-2, the first water delivering orifice; 1-3, gas outlet; 1-4, run-down pipe; 1-5, freeing port; 2, T-shaped threeway; 2-1, first interface; 2-2, the second interface; 2-3, the 3rd interface; 3, three-way solenoid valve; 3-1, the second water inlet; 3-2, hydrochloric acid entrance; 3-3, the second water delivering orifice; 4, flow cell; 4-1, guiding pipe cap; 4-2, guide pipe; 4-3, potential electrode; 4-4, flow cell inner chamber; 4-5, probe; 4-6, grinding bead; 4-7, the 3rd water delivering orifice; 4-8; 3rd water inlet; 4-9, O-ring seal
Embodiment
Be described principle of the present invention and feature below in conjunction with example, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of online residual chlorine sensor with self-stripping unit, comprise galvanostat 1, T-shaped threeway 2, three-way solenoid valve 3 and flow cell 4, described galvanostat 1 side is provided with the first water inlet 1-1, opposite side is provided with the first water delivering orifice 1-2, top is provided with gas outlet 1-3, described galvanostat 1 inside is also provided with the run-down pipe 1-4 be connected with the freeing port 1-5 of bottom, described T-shaped threeway 2 comprise in the first interface 2-1 of " one " word arrangement and the second interface 2-2 and with the two the 3rd perpendicular interface 2-3, first water delivering orifice 1-2 of described galvanostat 1 is connected by the first interface 2-1 of pipeline with T-shaped threeway 2, the gas outlet 1-3 of described galvanostat 1 is connected with the 3rd interface 2-3 of T-shaped threeway 2 by pipeline, described three-way solenoid valve 3 is connected with chlorine residue secondary instrument by supply lines, the second water inlet 3-1 is provided with on the left of described three-way solenoid valve 3, right side is provided with hydrochloric acid entrance 3-2, centre is provided with the second water delivering orifice 3-3, and the second interface 2-2 of described T-shaped threeway 2 is connected with the second water inlet 3-1 of three-way solenoid valve 3 by pipeline, described flow cell 4 comprises the guide pipe 4-2 on top, the flow cell inner chamber 4-4 of bottom and circulating the potential electrode 4-3 in the inner chamber 4-4 of pond along guide pipe 4-2, the top of described potential electrode 4-3 is fixed on guide pipe 4-2 by guiding pipe cap 4-1, the probe 4-5 of described potential electrode 4-3 lower end stretches in flow cell inner chamber 4-4, O-ring seal 4-9 is provided with for waterproof sealing in the middle part of described guide pipe 4-2, some grinding bead 4-6 are provided with in described flow cell inner chamber 4-4, the hole that described flow cell inner chamber 4-6 upper and lower is respectively less than grinding bead by a diameter connects the 3rd water inlet 4-8 and the 3rd water delivering orifice 4-7, described 3rd water inlet 4-8 exports 3-3 by pipeline with second of three-way solenoid valve 3 and is connected.
The course of work of above-mentioned online residual chlorine sensor is as follows:
1) current flow into galvanostat 1 from the first water inlet 1-1, when water level in galvanostat 1 is higher than the first water delivering orifice 1-2, current start to flow out from the first water delivering orifice 1-2, the rate of output water that water speed is greater than the first water delivering orifice 1-2 is entered due to the first water inlet 1-1, therefore the water level in galvanostat 1 continues the top rising to run-down pipe 1-4, and unnecessary water flows through freeing port 1-5 from run-down pipe 1-4 and discharges; First water delivering orifice 1-2 flows out and produces constant flow rate, comparatively sluggish flow;
2) current produced in galvanostat 1 enter the first interface 2-1 of T-shaped threeway 2 through the first water delivering orifice 1-2, the second water inlet 3-1 through three-way solenoid valve 3 after flowing through T-shaped threeway 2 enters three-way solenoid valve 3, to circulate pond 4 through the second water delivering orifice 3-3;
3) current to circulate pond through the 3rd water inlet 4-8 of flow cell 4, potential electrode 4-3 measures contents of residual chlorine in tap water, simultaneously current drive grinding bead 4-6 constantly to polish uniformly with constant speed, dynamics the top layer of potential electrode 4-3, and the water be completed is discharged through the 3rd water delivering orifice 4-7;
4) chlorine residue secondary instrument controls three-way solenoid valve 3, hydrochloric acid entrance 3-2 in three-way solenoid valve 3 is communicated with the second water delivering orifice 3-3, make hydrochloric acid solution by circulating in pond 4 after three-way solenoid valve 3, and grinding bead 4-6 is rotated around electrode platinum ring, carry out acid cleaning and physical cleaning simultaneously.
5) water flow velocity regulates: by the difference in height of regulation constant-current device overflow pipe 1-4 and the connected drainage pipe end of the 3rd water inlet 4-8, the flow velocity of the Inlet and outlet water of adjustable flow cell, also can increase/reduce the water pipe internal diameter connecting all parts, improve/reduce water velocity with this.
6) galvanostat load capacity is improved: increase the first water delivering orifice 1-2 of galvanostat and the difference in height of T-shaped T-valve 2, and ensure that the position of flow cell 4, three-way solenoid valve 3 is lower than T-shaped T-valve 2, can ensure that galvanostat 1 rear end because of gas occlusions pipeline, can not cause the situation that water route is different.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the online residual chlorine sensor with self-stripping unit, comprise galvanostat, T-shaped threeway, three-way solenoid valve and flow cell, it is characterized in that, described galvanostat side is provided with the first water inlet, opposite side is provided with the first water delivering orifice, top is provided with gas outlet, described galvanostat inside is also provided with the run-down pipe be connected with the freeing port of bottom, described T-shaped threeway comprise in the first interface of " one " word arrangement and the second interface and with the two the 3rd perpendicular interface, the water delivering orifice of described galvanostat is connected by the first interface of pipeline with T-shaped threeway, the gas outlet of described galvanostat is connected with the 3rd interface of T-shaped threeway by pipeline, described three-way solenoid valve is connected with chlorine residue secondary instrument by supply lines, the second water inlet is provided with on the left of described three-way solenoid valve, right side is provided with hydrochloric acid entrance, centre is provided with the second water delivering orifice, second interface of described T-shaped threeway is connected with the second water inlet of three-way solenoid valve by pipeline, described flow cell comprises the guide pipe on top, the flow cell inner chamber of bottom and the potential electrode of the pond inner chamber that circulates along guide pipe, the top of described potential electrode is fixed on guide pipe by guiding pipe cap, the probe of described potential electrode lower end stretches in flow cell inner chamber, some grinding bead are provided with in described flow cell inner chamber, the hole that described flow cell inner chamber upper and lower is respectively less than grinding bead by a diameter connects the 3rd water inlet and the 3rd water delivering orifice, described 3rd water inlet is connected with the second water delivering orifice of three-way solenoid valve by pipeline.
2. a kind of online residual chlorine sensor with self-stripping unit according to claim 1, is characterized in that, be provided with O-ring seal in the middle part of described guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030796.6A CN105527331B (en) | 2015-12-31 | 2015-12-31 | A kind of online residual chlorine sensor with self-stripping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030796.6A CN105527331B (en) | 2015-12-31 | 2015-12-31 | A kind of online residual chlorine sensor with self-stripping unit |
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| Publication Number | Publication Date |
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| CN105527331A true CN105527331A (en) | 2016-04-27 |
| CN105527331B CN105527331B (en) | 2018-01-16 |
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| CN201511030796.6A Expired - Fee Related CN105527331B (en) | 2015-12-31 | 2015-12-31 | A kind of online residual chlorine sensor with self-stripping unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324039A (en) * | 2016-08-04 | 2017-01-11 | 重庆和航物联网技术研究院有限公司 | Residual chlorine online remote monitoring system and method |
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| CN102706943A (en) * | 2012-06-01 | 2012-10-03 | 轻工业环境保护研究所 | Cleaning device for pH meter and cleaning method thereof |
| CN202599897U (en) * | 2012-03-23 | 2012-12-12 | 中国农业大学 | Water quality sensor automatic cleaning device |
| CN203941128U (en) * | 2014-05-29 | 2014-11-12 | 施世英 | The device of contents of residual chlorine in a kind of on-line measurement tap water |
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| CN2531387Y (en) * | 2002-04-11 | 2003-01-15 | 广州市粤新工程技术有限公司 | Measuring probe of electric conductivity measuring instrument having autoamtic timely cleaning function and its control circuit |
| CN2585228Y (en) * | 2002-12-06 | 2003-11-05 | 中国铝业股份有限公司 | pH value on-line checking device |
| CN2619261Y (en) * | 2003-03-11 | 2004-06-02 | 陈佩华 | Continuous detector for chlorine residue |
| JP2006105834A (en) * | 2004-10-07 | 2006-04-20 | Mitsubishi Electric Corp | Apparatus for measuring water quality |
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| CN202285011U (en) * | 2011-06-15 | 2012-06-27 | 金川集团有限公司 | Improved self-cleaning potential of hydrogen (PH) meter |
| CN202196032U (en) * | 2011-11-30 | 2012-04-18 | 哈尔滨商业大学 | Submersible continuous residual chlorine tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106324039A (en) * | 2016-08-04 | 2017-01-11 | 重庆和航物联网技术研究院有限公司 | Residual chlorine online remote monitoring system and method |
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| Publication number | Publication date |
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| CN105527331B (en) | 2018-01-16 |
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Address after: 264000 No. 1, Xiulin Road, Laishan District, Yantai City, Shandong Province Patentee after: SHANDONG DONGRUN INSTRUMENT SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 264000 No. 1, Xiulin Road, Laishan District, Yantai City, Shandong Province Patentee before: YANTAI DONGRUN INSTRUMENT Co.,Ltd. |
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Granted publication date: 20180116 Termination date: 20211231 |