CN202337823U - Constant electric potential anti-corrosion instrument with linear potentiometric sensor - Google Patents
Constant electric potential anti-corrosion instrument with linear potentiometric sensor Download PDFInfo
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- CN202337823U CN202337823U CN2011203833856U CN201120383385U CN202337823U CN 202337823 U CN202337823 U CN 202337823U CN 2011203833856 U CN2011203833856 U CN 2011203833856U CN 201120383385 U CN201120383385 U CN 201120383385U CN 202337823 U CN202337823 U CN 202337823U
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- anode
- potentiometric sensor
- water heater
- electric water
- positive electrode
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Abstract
The utility model discloses a constant electric potential anti-corrosion instrument with a linear potentiometric sensor, which comprises a positive electrode, an electric water heater inner tank, a power terminal, a power cable and an input terminal; wherein the power terminal is connected with the power cable, a constant potential control model is arranged between the power cable and the input terminal which is connected to the positive electrode base, the positive electrode is arranged in the middle of the positive electrode base, the potentiometric sensor is arranged aside the positive electrode, an outer threaded connecting base is arranged at the top end of the positive electrode base, the outer threaded connecting base is connected to the electric water heater inner tank, the positive electrode is a rod made of titanium, a mall section of insulating film is sleeved out of the positive electrode on the connection portion of the positive electrode and the outer threaded connecting base, the titanium positive anode, the potentiometric sensor and the outer threaded connecting base stretch into the inner portion of the electric water heater inner tank and contact with the liquid in the electric water heater inner tank. The constant potential anti-corrosion instrument has the advantages of being long in service life, pollution-free, and capable of stably controlling the anti-corrosion electric potential in the required range.
Description
Technical field:
The utility model relates to the aseptic technic of electrochemical field, is specifically related to a kind of permanent position of electronics anti-corrosion meter that has the linear potentiometric sensor.
Background technology:
Anticorrosion this project of inner container of electric water heater belongs to electrochemistry category scope, and its theoretical source is the principle from galvanic protection.Galvanic protection; Be an electrochemistry technical term, it is to replenish a large amount of electronics to the metal that needs protection, and makes by the protection metal integral to be in the superfluous state of electronics; Make the metallic surface each point reach same negative potential, atoms metal is not easy to lose electronics and becomes the ion pass into solution.Realization is to the galvanic protection of metal.Range of application has equipment such as electric water heater, solar water heater, immediately heating water heater, boiler, water dispenser, metal water tower at present.
Sacrificial anode is used in galvanic protection as in the metal corrosion and protection field, has 2 types at present, i.e. sacrificial anode (magnesium rod) and impressed current supplementary anode.
(1) sacrificial anode, the magnesium rod is anticorrosion---and the electric water heater etching problem has been alleviated in the use of magnesium rod, has reduced potential safety hazard.The positive effect that himself is arranged, but self defective is also arranged.
Electrochemical theory shows, uses sacrificial anode to do galvanic protection, when negative electrode be defeated by by polarization-during 1100mv; Cathode hydrogen evolution (generation hydrogen); Hydrogen fault location in metal is assembled, and possibly make metal produce hydrogen embrittlement and destroy, so electric water heater must not be defeated by by polarization-1100mv.
(1) the magnesium rod is limited work-ing life, can not effectively protect electric water heater all the time.So-called sacrificial anode so always has that day of sacrifice, and early and late, magnesium rod also are so, and is long only 2 years, short then more very.In the sacrificial protection of large-scale hardware, the magnesium rod also has life, is to want regular update.
(2) to the overprotection of inner bag heating tube.The current potential that magnesium rod uses is more negative, and generally about-1.7V, so high current potential can make inner bag and heating tube current potential increase the formation overprotection suddenly in the early stage.Like this around inner bag and heating tube enrichment a large amount of ions, quicken to form incrustation scale.Incrustation scale covers on the heating tube, has influenced the heat radiation of heating tube, makes local temperature overheated, and dry combustion method makes it to melt, and then forms corrosion failure.
(3) impurity effect uses.The magnesium rod is that a magnesium is main alloy, wherein also has a variety of other metallicses, and these materials influence the excellent protection effect of magnesium as Fe, Ni, Cu etc., and aluminium, manganese then can cause senile dementia, make people's maincenter neurotoxic.
(4) the magnesium clavate becomes a lot of swimmers, stops up shower nozzle.The magnesium rod comprises a lot of metals, and these metallicses can decomposite when the excellent consumption of magnesium, and the reflection of passing through that has forms floss, and what have then is deposited on the water pipe, and especially the shower nozzle position is often adhered to a lot, influences and uses.
(5) some areas produce smelly water.In certain areas, contain a large amount of SO42-, S2-in the water, metals such as these ions and magnesium reflect, form H2S gas, produce strange taste.
(2) impressed current, electronics is anticorrosion---original electronics anticorrosion general all be two kinds of constant-pressure type and constant current mode.
Voltage-type: generally adopt fixed voltage about 1.8v to flow to anode and protect to inner bag.
Constant current mode: provide certain constant current value that inner bag is protected,
Their shortcomings be but the inner bag volume when increasing the unit to the inner bag protection will obviously descend, to inner bag some areas protection can't be provided.In this way enamel inner container then current potential obviously raise, then produce hydrogen reducing reaction, for preventing the hydrogen reducing reaction; We test for many years, electrochemical theory shows, use sacrificial anode to do galvanic protection, when negative electrode be defeated by by polarization-during 1100mv; Cathode hydrogen evolution (generation hydrogen); Hydrogen fault location in metal is assembled, and possibly make metal produce hydrogen embrittlement and destroy, so electric water heater must not be defeated by by polarization-1100mv.Science choose electronics corrosionproof protection potential point (850mV----950mV).
The inner container of electric water heater carbon steel sheet is done negative electrode; From the spontaneous potential of chemical corrosion reaction should be-more than the 850mV; Carbon steel substrate potential absolute value is higher than this current potential; Carbon steel sheet chemical corrosion reaction is by fatigued termination, but neither the current potential absolute value high more good more, the as above said higher hydrogen reducing reaction that then produces.
Therefore imagination provides a kind of equipment can solve above technical problem.
The utility model content:
The purpose of the utility model provides a kind of permanent position of electronics anti-corrosion meter that has the linear potentiometric sensor, can be used for corrosive equipments such as electric water heater, solar electric water heater, Industrial Boiler.The permanent position of electronics anti-corrosion meter adopts the impressed current cathodic protection method, is theoretical according to corrosion electrochemistry, with adding adjustable direct supply, positive grade of power supply is connect supplementary anode, and negative pole connects protected metallic structures; After energized; Just produce cathodic polarization after the protected metallic structures absorption current; Generally from stable spontaneous potential (current potential when not adding protection) toward negative direction polarization 200～300mV or be defeated by-850mV (relative saturation mercurous chloride electrode; As follows), can be set to-900mV and constant at this current potential, just can be protected fully.
The technical scheme of the utility model: a kind of permanent position of electronics anti-corrosion meter that has the linear potentiometric sensor, comprise anode, inner container of electric water heater, power supply terminal, supply lead, input terminal: power supply terminal connects supply lead, between supply lead and input terminal, is provided with the constant potential control module; Input terminal is connected to the anode pedestal, and anode pedestal middle part is equipped with anode, and the anode installed beside has potentiometric sensor; Said potentiometric sensor is the linear barred body; Anode pedestal upper end is provided with the outside screw Connection Block, and the outside screw Connection Block is connected to inner container of electric water heater, and anode is the barred body that titanium is processed; In anode and outside screw Connection Block junction; Anode is with a bit of insulating film outward, and titanium anode, potentiometric sensor and outside screw Connection Block stretch into the inside of inner container of electric water heater, contacts with liquid in the inner container of electric water heater.
Described outside screw Connection Block changes its finish size according to the big I of inner container of electric water heater.
Its length of described potentiometric sensor can change as requested, and adopts titanium to make.
The insulating film adjustable positions of described titanium anode overcoat.
Described constant potential control module can be connected in series in the line, also can be welded on above the electric water heater control mainboard.
The utility model has the advantages that:
Adopted the anticorrosion control techniques in the permanent position of electronics, CONTROLLED POTENTIAL is stable, can be used for corrosive equipments such as electric water heater, solar electric water heater, Industrial Boiler.The permanent position of electronics anti-corrosion meter can make inner bag and heating tube respectively at the best protection state, and the life-span is long, and general more than 15 years, its life-span can be equal to the life-span of electronic component, can be non-maintaining throughout one's life.The supplementary anode of the permanent position of electronics anti-corrosion meter is an insoluble anode, forms one deck electronics protective oxide layer in the enamel defect zone during reaction, directly stops corrosion reaction to take place, and can not produce degradation production, not polluted water.And can alleviate scale problems.From preservative effect, this system can be the scope of control of Electric potentials at needs, and anticorrosion current potential is stable.
Description of drawings
Fig. 1 is the principle of work block diagram of the permanent position of the utility model electronics anti-corrosion meter;
Fig. 2 is the structural representation of the permanent position of the utility model electronics anti-corrosion meter;
Fig. 3 is the permanent position of a utility model electronics anti-corrosion meter and the synoptic diagram that is connected of inner container of electric water heater.
The specific embodiments of the utility model:
Below in conjunction with accompanying drawing, the utility model is done further explain through embodiment:
Referring to accompanying drawing 2 and accompanying drawing 3; A kind of permanent position of electronics anti-corrosion meter that has the linear potentiometric sensor comprises anode (1), inner container of electric water heater (9), power supply terminal (2), supply lead (8), input terminal (7), and power supply terminal (2) connects supply lead (8); Between supply lead (8) and input terminal (7), be provided with constant potential control module (5); Input terminal (7) is connected to the anode pedestal, and anode pedestal middle part is equipped with anode (1), and anode (1) installed beside has potentiometric sensor (4); Potentiometric sensor (4) is the linear barred body; Anode pedestal upper end is provided with outside screw Connection Block (6), and the outside screw Connection Block is connected to inner container of electric water heater (9), the barred body that anode (1) is processed for titanium; In anode (1) and outside screw Connection Block (6) junction; Anode (1) is outer to be with a bit of insulating film (3), and anode (1), potentiometric sensor (4) and outside screw Connection Block (6) stretch into the inside of inner container of electric water heater (9), contacts with liquid (10) in the inner container of electric water heater referring to accompanying drawing 3.
Its principle of work is referring to accompanying drawing 1; When getting into power supply terminal (2), power supply flows into constant potential control module (5) through supply lead (8); Output through power supply control in the constant potential control module (5) is given anode (1) power supply through X-former step-down and rectification controlable electric current, and near the potentiometric sensor (4) the anode (1) receives the current potential of liquid the inside and is sent in the constant potential control module (5).If current potential rises near the anode (1); Then sample rate current increases; Sample rate current/voltage signal is the inverting input that is added in constant potential control module (5) main amplifier, makes with being connected on the normal phase input end wave that the main amplifier magnification descends in the constant potential control module (5) after relatively, and the output of power supply control reduces; Current potential descends near making anode (1), is returned on the former potential setting value; Equally; If current potential descends near the anode (1); The sampled signal that reference electrode obtains descends, and the main amplifier magnification rises in the constant potential control module (5) through relatively making with wave, and the output of power supply control increases; Current potential rises near the anode (1), is returned on the former potential setting value.Just when outside or inner any reason caused the protected object above earth potential to change, constant potential control module (5) can both correspondingly increase or reduce to export a current potential that changes and pull back, and near the current potential of anode (1) is remained unchanged.
The foregoing description is merely the preferred implementation of the utility model, and in addition, the utility model can also have other implementations.This product can be made into integral type or split type product, is convenient to variant prodn and installs and adjustment, and titanium anode setscrew nut can change its finish size according to the big I of inner bag.Transmitter can be made as shapes such as linear pattern and round, camber.Linear pattern can change collinear length, and anodic insulating film height can change.The accurate switchboard of current potential system can the side of being made as, circle, modular type, can be connected in series in the line, also can be welded on above the water-heater control mainboard.Need to prove that under the prerequisite that does not break away from the utility model design, any conspicuous improvement and modification all should fall within the protection domain of the utility model.
Claims (5)
1. the permanent position of an electronics anti-corrosion meter that has the linear potentiometric sensor comprises anode, inner container of electric water heater, power supply terminal, supply lead, input terminal, and it is characterized in that: power supply terminal connects supply lead; Between supply lead and input terminal, be provided with the constant potential control module, input terminal is connected to the anode pedestal, and anode pedestal middle part is equipped with anode; The anode installed beside has potentiometric sensor, and said potentiometric sensor is the linear barred body, and anode pedestal upper end is provided with the outside screw Connection Block; The outside screw Connection Block is connected to inner container of electric water heater; Anode is the barred body that titanium is processed, and in anode and outside screw Connection Block junction, anode is with a bit of insulating film outward; Titanium anode, potentiometric sensor and outside screw Connection Block stretch into the inside of inner container of electric water heater, contact with liquid in the inner container of electric water heater.
2. the permanent position of the electronics anti-corrosion meter that has the linear potentiometric sensor according to claim 1, it is characterized in that: described outside screw Connection Block changes its finish size according to the big I of inner container of electric water heater.
3. the permanent position of the electronics anti-corrosion meter that has the linear potentiometric sensor according to claim 1, it is characterized in that: its length of described potentiometric sensor can change as requested, and adopts titanium to make.
4. the permanent position of the electronics anti-corrosion meter that has the linear potentiometric sensor according to claim 1 is characterized in that: the insulating film adjustable positions of described titanium anode overcoat.
5. the permanent position of the electronics anti-corrosion meter that has the linear potentiometric sensor according to claim 1, it is characterized in that: described constant potential control module can be connected in series in the line, also can be welded on above the electric water heater control mainboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203833856U CN202337823U (en) | 2011-10-10 | 2011-10-10 | Constant electric potential anti-corrosion instrument with linear potentiometric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203833856U CN202337823U (en) | 2011-10-10 | 2011-10-10 | Constant electric potential anti-corrosion instrument with linear potentiometric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202337823U true CN202337823U (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203833856U Expired - Fee Related CN202337823U (en) | 2011-10-10 | 2011-10-10 | Constant electric potential anti-corrosion instrument with linear potentiometric sensor |
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| CN (1) | CN202337823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352229A (en) * | 2013-07-08 | 2013-10-16 | 钱伟 | Electronic anti-corrosion inner container of electric water heater |
-
2011
- 2011-10-10 CN CN2011203833856U patent/CN202337823U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352229A (en) * | 2013-07-08 | 2013-10-16 | 钱伟 | Electronic anti-corrosion inner container of electric water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO HAODONG ELECTRIC APPLIANCE TECHNOLOGY CO., Free format text: FORMER OWNER: QIAN XINJIAN Effective date: 20130522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 247100 CHIZHOU, ANHUI PROVINCE TO: 315700 NINGBO, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130522 Address after: Penglai road in Xiangshan County of Zhejiang province Ningbo 315700 West Street No. 305 Patentee after: Ningbo Haodong Electrical Appliance Technology Co., Ltd. Address before: 247100 Anhui Province, Chizhou city Guichi District Chi Yang Lu Guang Hua Building Room 521 Patentee before: Qian Xinjian |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20191010 |